CN207471574U

CN207471574U - Using the preheating body of Fire Radiation warm-up combustion-supporting air and with its thermal hardware

Info

Publication number: CN207471574U
Application number: CN201720804490.XU
Authority: CN
Inventors: 黄海涛
Original assignee: Guangdong University of Technology
Current assignee: Guangdong University of Technology
Priority date: 2017-07-05
Filing date: 2017-07-05
Publication date: 2018-06-08
Anticipated expiration: 2027-07-05

Abstract

The utility model discloses the preheating bodies using Fire Radiation warm-up combustion-supporting air, it is characterised in that：The preheating body has a series of heated heat-transfer area for absorbing Fire Radiation, for combustion air channel between the adjacent heated heat-transfer area of each two, the thermal energy that Fire Radiation can be converted gained by the preheating body passes to and flows through and be in direct contact the combustion air of the heated heat-transfer area；The structure type of the preheating body is set as the preheating body and black body effect is presented for preheating the Fire Radiation of body described in directive.It is finned etc. that the concrete form of the preheating body includes helical coil chip, finned, the porous breathable formula of radiation, vortex.The invention also discloses the thermal hardwares with the preheating body using Fire Radiation warm-up combustion-supporting air.The utility model preheating body will can be absorbed with the Fire Radiation outwardly distributed that flame is heated in object basic mode is converted to thermal energy, then using these thermal energy warm-up combustion-supporting airs, so as to avoid Fire Radiation heat loss, improves the thermal efficiency.

Description

Using the preheating body of Fire Radiation warm-up combustion-supporting air and with its thermal hardware

Technical field

The utility model is related to combustion apparatus and components, relate more specifically to utilize the pre- of Fire Radiation warm-up combustion-supporting air Hot body and with its thermal hardware.

Background technology

Found in prehistorical site before 1,000,000 years hominid with the case of fiery trace in archeological researches Report, such as Archaeological Exploration once find the thick ashes heap up to 5 centimetres in the cave in prehistory primitive man ruins, around have charcoal Bits.Hominid is to obtain kindling material from forest fire caused by thunder and lightning by inference, has then gradually grasped the method manually lit a fire. Possess after fire could cooking food, primitive man can just have prepared food, promote human brain development and production and living system into Change.Prepared food has also been significantly expanded source and the type of food.The heat that fire provides also helps people's heating overwintering, has expanded in height The scope of activities of latitude.

In the pottery epoch in B.C. tens thousand of years to thousands of years, the mankind once mass produced pottery as life appliance, burnt The use of fire is required during ceramics.In B.C. thousands of years to the first years of a historical period in Christian era of the Bronze Age and subsequent ironware Generation, the mankind make various production and living apparatus and cold steel (such as knife and sword) of metal smelt art, and fire makes during metal smelting With being indispensable.In the industrial revolution for starting from 18th century of Christian era, large scale mining fossil fuel for burn and The utility model of various thermal power machineries plays critical impetus.

Can say, association lights a fire, with the application range of constantly expanding fire of fighting be originally the hominid that eats birds and animals raw with Other animals are distinguished gradually into turning to one of most important factor of the modern age mankind for possessing brilliant civilization.It is very long in the mankind It evolves and in each stage of development of civilization history, fiery and its thermal energy application technology all plays the role of extremely important.

Into 21st century, the mankind possess quite flourishing science and technology.But current daily life and production are lived The dynamic use for still be unableing to do without fire.All the time the whole world has countless power plant and boiler to rely on and use large and medium-sized burning Device burning coal or fuel oil provide thermal energy；The various vehicles such as motor vehicle, ship, aircraft provide dynamic by fuel engines Power.The industrial departments such as metallurgy, chemical industry, electronics, machinery are generally used with combustion gas, fuel oil or coal-fired various stoves and work for fuel Industry stove.Mechanical industry metal welds and cutting, glass work, food and agricultural and sideline product drying and processing, laboratory chemical The high temperature heating operations such as reaction and high-temperature roasting, medical treatment and biological apparatus sterilizing disinfection often using middle-size and small-size burner such as stove, Torch, Bunsen burner, alcolhol burner, alcohol spraying, kerosene blastburne provide thermal energy.In daily life, everyone needs daily With fire several times.For example, with gas-fired stove cooking food, domestic water is heated with gas heater.Everyone is every by also numerous smokers It lights several to tens of Zhi Xiangyan with fire.Thus, the life of modern humans be unable to do without fire as the life of the ancient times mankind Use.

Fig. 1 shows people's basic modes of fire heating object.Burner is located at lower section, and the object for intending heating is located at burning The top of device flame.Burner in Fig. 1 can be any kind of utensil (such as lighter, alcolhol burner, the alcohol for generating flame Spraying, kerosene spraying, Bunsen burner, stove, torch, kitchen range, industrial combustion gas or oil burner etc.), the object for intending heating can To be any kind of object (such as cigarette, test tube, beaker, flask, crucible, pan, circular bottom pot, material, food, product, zero Part, workpiece, instrument, heat exchanger comb or coil pipe etc.).

Dotted arrow shown in Fig. 1 beside flame represents that flame sends out heat radiation to surrounding.Such as：When we are turned on sparking Machine flame, then from left, right, front and rear, upper and lower all directions during flame, we are from all directions it can be seen that flame It shines.In fact, flame is to be simultaneously emitted by heat radiation to all directions in space in entire flame volume.That is flame And the radiation of heat smoke is volume radiation.It is readily apparent that it is located at the top of flame due to intending the object of heating in Fig. 1, only The Fire Radiation of fraction is the object that directive intends heating, remaining most Fire Radiation be directive surrounding space without It is used effectively and (is known as " Fire Radiation heat loss ").For example, it heats one in use for laboratory alcolhol burner flame and is placed in wine During flask above smart lamp, only about 30% Fire Radiation reaches flask, remaining 70% Fire Radiation is distributed to surrounding And it is wasted.

The heavy solid line arrows for the object both sides heated in Fig. 1 represent that the heat smoke that flame generates flows through heated object Body is drained then up.When heat smoke flows through object mainly object is transferred heat in a manner that convection current is conducted heat.It is but hot The contact area of flue gas and object is little and time of contact is of short duration, and only a fraction can pass in the heat that heat smoke contains Object, the heat smoke drained upwards still have quite high temperature.The part heat that heat smoke discharge carries away is known as " smoke evacuation Heat loss ".

It is to be surrounded by extraneous cold air around Fig. 1 Flame volumes, matter can occurs between flame and ambient cold air The exchange of amount, momentum and heat.On the one hand, ambient cold air provides the oxygen needed for flame completely burned.On the other hand, it is fiery The flowing of flame ambient cold air can take away the heat of flame.In other words, surrounding air has cooling effect to flame.Surrounding is empty The flow velocity of gas is bigger, then the heat taken away by it is more, bigger to the cooling effect of flame.Strong wind can even extinguish fire Flame.In addition, the room temperature combustion air for flowing into combustion zone need to expend flame heat regulating heating reaches after higher temperature could be with Combustion reaction occurs for fuel.Air is right (including surrounding air, gravity-flow ventilation or force ventilated combustion air and excess air) Heat loss caused by the cooling effect of flame is known as " air cooling heat loss ".

The solid arrows of burner both sides represent to be entered the combustion air of combustion zone by flame jet volume inspiration in Fig. 1.Fire Flame is commonly done in the violent chemical reaction in a small areas, and the speed of the consumption of chemical reaction oxygen is generally higher than sky The speed of gas oxygen supply.Imperfect combustion easily occurs when flame combustion area is bad for hypoxgia or fuel and oxygen mix, draws It rises " heat loss due to incomplete combustion ".

People are objects to be heated using the purpose that burner generates flame in Fig. 1.But as described above, Fire Radiation heat waste Mistake, heat loss due to exhaust gas, air cooling heat loss and heat loss due to incomplete combustion cause in fuel combustion thermal discharge only some It can really be used to heat object.These actually obtain the heat efficiently used and account for total heat release during consumed fuel completely burned The ratio of amount is known as " thermal efficiency ".Due to there are many heat wastes as described above with flame heating object basic mode shown in Fig. 1 Mistake approach, therefore its thermal efficiency is not high.At present still there are many industry and civilian burning heating equipment (such as Bunsen burner, blowtorch, Household gas utensils, commercial gas kitchen range, fuel cooking range, pharoid) mode of heating and Fig. 1 it is similar, universal asks Topic is that heat loss is big, and the thermal efficiency is low.

Invention content

The purpose of this utility model be for shown in Fig. 1 with the heat loss of flame heating object basic mode is big, the thermal efficiency The problem of low, a kind of preheating body using Fire Radiation warm-up combustion-supporting air is provided, which is applied to industry and civilian combustion The effect for can be obtained when burning heating equipment and reduce heat loss, improving the thermal efficiency.

For this purpose, the utility model provides：

Utilize the preheating body of Fire Radiation warm-up combustion-supporting air, it is characterised in that：The preheating body, which has, absorbs flame spoke The a series of heated heat-transfer area penetrated is combustion air channel between the adjacent heated heat-transfer area of each two, and the preheating body will The thermal energy that Fire Radiation can convert gained passes to the combustion air for flowing through and being in direct contact the heated heat-transfer area.

Further, the structure type of the preheating body is set as flame of the preheating body for preheating body described in directive Black body effect is presented in radiation.

Further, the structure type of the preheating body, which is set as the preheating body and its hot gas of inside, to generate Stack effect, combustion air flow into the preheating body under the action of stack effect air inducing power.

Further, the gross area of a series of heated heat-transfer area of absorption Fire Radiation that the preheating body has is more than Or 30 times of flame external surface area during equal to rated power.

Further, the preheating body is made of several sheet metals, and the surface of the sheet metal is heated heat transfer Face, formation can be as the narrow slit sky of combustion air channel between the sheet metal is arranged as the adjacent heated heat-transfer area of each two Gap, and the aperture position in narrow slit gap and direction cause flame spoke towards flame between the adjacent heated heat-transfer area of each two It penetrates to inject and black body effect occurs inside narrow slit gap.

Above-mentioned includes but not limited to following concrete form using the preheating body of Fire Radiation warm-up combustion-supporting air：

(A) the preheating body radiates finned preheating body, the finned preheating body of high-order radiation or low level for prosposition and radiates Finned preheating body, it is characterised in that：

The finned preheating body of prosposition radiation includes a series of radial fin, cylinder, and the radial fin is used Sheet metal makes, and the radial fin is radially aligned in the cylinder centered on the central axes of the cylinder Inside, narrow slit gap is combustion air channel between the radial fin, and the radial fin is from the cylinder central axes Proximal end form burner head outer diameter big 1 to 4cm middle through-hole of the diameter than the preheating body application, the middle through-hole Top edge and burner head it is concordant topmost, the lower part and top of the cylinder offer air intlet and smoke evacuation respectively Mouthful；

The finned preheating body of high-order radiation includes a series of radial fin, cylinder and Circular Plate, the radiation Shape fin makes of sheet metal, and the Circular Plate is mounted on the top of the cylinder, and the Circular Plate has middle part trepanning, institute It is radially aligned in the inside of the cylinder centered on the central axes of the cylinder to state radial fin, it is described radial Narrow slit gap is combustion air channel between fin, in the cylinder bottom end to the burner head height of the preheating body application Position described in proximal end of the radial fin from the cylinder central axes form diameter bigger than burner head outer diameter 1 to 4cm's Middle through-hole, the top edge of the middle through-hole is concordant topmost with burner head, and 2 to 3cm extremely more than burner head Proximal end of the radial fin described in the position of the Circular Plate from the cylinder central axes collectively forms one for accommodating quilt The cylindrical cavity of object is heated, is higher than burner head most at the half height of the high-order finned preheating body of radiation Upper end；

The finned preheating body of low level radiation includes a series of radial fin, taper cone barrel and circle drum barrel, described to put It penetrates shape fin to make of sheet metal, the radial fin is radially aligned centered on the central axes of the taper cone barrel Between the inside of the taper cone barrel, the radial fin narrow slit gap be combustion air channel, the radial fin from The proximal end of the taper cone barrel central axes forms the middle through-hole being adapted with the burner head outer diameter of the preheating body application, institute The top edge of middle through-hole is stated less than burner head the top, the side wall of the round drum barrel offers smoke outlet, the smoke evacuation Mouth leads to smoke exhaust barrel through flue, and the flue is equipped with valve, and the low level radiation fin is preheated at the half height of body Less than burner head topmost.

(B) it is described preheating body for helical coil chip preheat body, circular cone laminated preheat body, spiral winding chip preheat body or Multiple folded preheating body, it is characterised in that：

The helical coil chip preheating body includes spiral roll film portion and cylinder, and spiral shell is pressed with sheet metal by the spiral roll film portion It rolls into rotation shape, the narrow slit gap between spiral roll film is combustion air channel, and the cylinder connects the spiral roll film portion On the outside of upper end, the spiral roll film portion has the middle through-hole that the burner head outer diameter with the preheating body application is adapted, The top edge of the middle through-hole is less than burner head topmost.

The circular cone laminated preheating body includes several metal thin-wall taper cone barrels, and the taper cone barrel has middle through-hole, The diameter of the middle through-hole is bigger by 1 to 4cm than the burner head outer diameter of the preheating body application, and the taper cone barrel is successively from upper It is nested down, the narrow slit of the circular cone mesa shape formed between the wall surface of a upper taper cone barrel and the wall surface of next taper cone barrel is empty Gap is combustion air channel, and the bearing between a upper taper cone barrel and next taper cone barrel is the vertical of a upper taper cone barrel bottom The circular sheet metal bent downward, circumferentially direction is equably opened on the circular sheet metal bent vertically downward Equipped with combustion air inlet；

The spiral winding chip preheating body preheats body central axes than being more than 60 sheet metal by length/width around described Continuous spiral downwards turns to for helical form, and narrow slit gap is combustion air channel between spiral winding piece, the spiral winding piece Formula preheating body has diameter 1 to 4cm middle through-hole bigger than the burner head outer diameter of the preheating body application.

The multiple folded preheating body is by length/width than being more than 60 sheet metal along its length continuously, instead Again, with it is identical along its length on spacing be folded into, the shape of continuous WWW, institute are formed when making it from the side State and folded the sheet metal headtotail that finishes and become hollow ring shape, per the adjacent folded foil of two panels it Between narrow slit gap for combustion air channel, the multiple folded preheating body has diameter than the burning of the preheating body application The middle through-hole of device head outer diameter big 1 to 4cm.

(C) it is described preheating body be the finned preheating body of vortex, including a series of swirl shape fin, inner cylinder, outer cylinder, Dome plate and round bottom plate, the swirl shape fin are arranged in centered on the central axes of the inner cylinder inside the inner cylinder Lower half, narrow slit gap is combustion air channel between the swirl shape fin, in being formed between the inner cylinder and outer cylinder Empty interlayer, the top and bottom of the outer cylinder are closed respectively by the dome plate and round bottom plate, and the inner cylinder is fixedly mounted Below the dome plate, there is gap between the lower end of the inner cylinder and the round bottom plate, the outer cylinder wall surface is tangentially Combustion air inlet is offered, inner cylinder upper end wall surface tangentially offers fuel inlet, and the dome plate is equipped with row Mouth.

(D) the preheating body preheats body for porous breathable formula or heat exchanging pipe formula preheats body, it is characterised in that：

Porous breathable formula preheating body include circle drum barrel and on the inside of the round drum barrel, shape with the round drum barrel The porous breathable body that shape is adapted, forms hollow sandwich between the round drum barrel and porous breathable body, the porous breathable body is Porous metals ventilation body, metallic fiber ventilation body, foamed ceramics ventilation body or honeycomb ceramic body ventilation body, the porous breathable Internal air hole is combustion air channel, and the round drum barrel wall surface tangentially offers air intlet, the round drum barrel bottom Burner is installed, has annular smoke outlet around burner；

Heat exchanging pipe formula preheating body include a series of heat exchanging pipe, the first cylinder, the second cylinder, third cylinder, 4th cylinder, dome plate and round bottom plate, the first cylinder, the second cylinder, third cylinder, the 4th cylinder diameter be sequentially increased, The top and bottom of three cylinders and the 4th cylinder are closed respectively by the dome plate and round bottom plate, third cylinder and the 4th cylinder it Between form hollow sandwich, the first cylinder is fixedly mounted on dome plate lower surface, between having between the lower end of the first cylinder and round bottom plate Gap, the second cylinder are fixedly mounted on round bottom plate upper surface, there is gap, the heat exchange row between the upper end of the second cylinder and dome plate Pipe is across the first cylinder and the second cylinder, and the heat exchanging pipe connects combustion zone in the first cylinder and third cylinder is justified with the 4th Hollow sandwich between cylinder, the interior pipe of the heat exchanging pipe is combustion air channel, and the heat exchanging pipe is that circumferentially direction is equal It is arranged in evenly within third cylinder, fuel inlet is offered in the round bottom plate, the round bottom plate is in the second cylinder and Between three cylinders smoke outlet is offered on position.

The utility model also provides the thermal hardware with the above-mentioned preheating body using Fire Radiation warm-up combustion-supporting air, It is characterized in that, including the preheating body using Fire Radiation warm-up combustion-supporting air described in any of the above item.

The effect of the utility model preheating body is will to heat outwardly distributing in object basic mode with fire shown in Fig. 1 Fire Radiation, which can absorb, is converted to thermal energy, then using these thermal energy warm-up combustion-supporting airs, so as to avoid Fire Radiation heat loss, Improve the thermal efficiency.

Description of the drawings

Fig. 1 is the use fire heating object basic mode schematic diagram of the prior art.

Fig. 2 is the helical coil chip preheating body schematic diagram of the utility model embodiment 1.

Fig. 3 is the cutting shape for rolling copper foil used in the helical coil chip preheating body of the utility model embodiment 1 Schematic diagram.

Fig. 4 is that the helical coil chip preheating body absorption Fire Radiation of the utility model embodiment 1 carrys out warm-up combustion-supporting air Schematic diagram.

Fig. 5 is the finned preheating body schematic diagram of prosposition radiation of the utility model embodiment 2.

Fig. 6 is the A-A sectional views of Fig. 5.

Fig. 7 is the finned preheating body schematic diagram of high position radiation of the utility model embodiment 3.

Fig. 8 is the circular cone laminated preheating body schematic diagram of the utility model embodiment 4.

Fig. 9 is that a kind of gravity-flow ventilation burning with the finned preheating body of low level radiation of the utility model embodiment 5 adds The structure diagram of hot equipment.

Figure 10 is that a kind of forced ventilation combustion heating with porous breathable formula preheating body of the utility model embodiment 6 is set Standby structure diagram.

Figure 11 is that a kind of forced ventilation combustion heating with the finned preheating body of vortex of the utility model embodiment 7 is set Standby structure diagram.

Figure 12 is that a kind of forced ventilation combustion heating with heat exchanging pipe formula preheating body of the utility model embodiment 8 is set Standby structure diagram.

Specific embodiment

The utility model is further described With reference to embodiment.Wherein, being given for example only property of attached drawing Illustrate, expression is only schematic diagram rather than pictorial diagram, it is impossible to be interpreted as the limitation to this patent；In order to which this reality is better described With novel embodiment, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product；To ability For field technique personnel, the omitting of some known structures and their instructions in the attached drawings are understandable.

The data enumerated in following embodiment be used for the purpose of be better described the utility model content and showing for providing Example property data, unless otherwise indicated, do not form any restrictions to the utility model claims.

In this specification, " Fire Radiation " refers to whole radiation that flame combustion is caused, the light-emitting zone including flame All radiation that all radiation (containing visible, ultraviolet and infrared part) for sending out, the combustion product of non-luminous region are sent out, flame The portion to shine and all radiation for sending out of carbon particulate of non-luminous region and above-mentioned radiation are reflected and scattered by other surfaces Point and the object heated or other surfaces reach a high temperature after the infrared spoke that sends out of the object heated or other surfaces It penetrates." heated heat-transfer area " refers to that those can absorb Fire Radiation and Fire Radiation can be converted to the thermal energy of gained and passes to and institute State the surface for the combustion air that heated heat-transfer area is in direct contact.The meaning of above-mentioned two term in the present specification and its known in contain Justice is had any different, therefore the two terms will be described in more detail with reference to specific embodiment below in an example in this explanation Meaning in book.

Embodiment 1

As shown in Fig. 2, preheat body schematic diagram for helical coil chip a kind of in the utility model.Referring to Fig. 2, helical coil chip It preheats body 1 and includes spiral roll film portion 11 and cylinder 12.The height in spiral roll film portion 11 is slightly less than applied burner head Highly；The height of cylinder 12 is more than or equal to the height that the object for intending heating leaves burner head.Helical coil chip preheats The height of body 1 is the sum of the height in spiral roll film portion 11 and the height of cylinder 12.Spiral roll film portion 11 has middle through-hole, in this Portion's through-hole is adapted with burner head outer diameter.

Helical coil chip preheating body 1 is rolled into accordance with the following methods using copper foil：

(1) copper foil is bought from market.The thickness specification of copper foil can be optional one in single zero foil (0.1 to 0.01mm) Kind；Width specifications are equal to the height of the helical coil chip preheating body 1 of required making；Length specification is generally 10m and often rolls up copper foil.

(2) shape shown in Fig. 3 is cut to after the copper foil of required length being pulled out, shakeout from a roll of copper foil, left side Height be equal to required making helical coil chip preheating body 1 spiral roll film portion 11 height, the height on right side is equal to required (it should be noted that Fig. 2 and Fig. 3 are schematic diagram, Fig. 3 only represents to roll up the height of the helical coil chip preheating body 1 of making The cutting shape of copper foil, is not drawn to draw used in the helical coil chip preheating body of the utility model embodiment 1 processed, And the drawing ratio of Fig. 2 and Fig. 3 is different).

(3) it puts an outer diameter cylinder identical with burner head outer diameter in the left end of the copper foil cut and (is known as " volume System cylinder "), then copper foil shown in Fig. 3 is rolled up from left to right on the cylinder and (keeps the surface of copper foil big when rolling Cause to be parallel to the central axes of the cylinder), until the right end of copper foil is by original shown in Fig. 3 all on the cylinder This rolls for the copper foil of plane and preheats body 1 as helical coil chip shown in Fig. 2.Using other tools adjustment spiral roll film it Between gap cause from above and below along roll when being seen with cylinder central axes direction spiral roll film present it is uniform, from central axes The gradual increased continuous helical wire shaped of distance.

(4) thermal insulation material is surrounded into helical coil chip preheating 1 outer surface of body and tightened.Thermal insulation material can be selected non-ignitable resistance to High-temperature material such as glass fabric, alumina silicate fibre cloth.

(5) it removes to roll out of helical coil chip preheating body 1 and uses cylinder.This rolls the cylinder removed with cylinder and vacated afterwards Shape space is the middle through-hole in spiral roll film portion 11.

The middle through-hole in the spiral roll film portion 11 of helical coil chip preheating body 1 is directed at burner head during use, by spiral shell Circumvolution chip preheating body 1 is sleeved on burner head, and the top edge of the middle through-hole in spiral roll film portion 11 should be less than burner head Portion the top, as shown in Figure 2.Burner can be conventionally lighted after installing and generates flame, flame and flue gas lead to Convection current and radiant heat transfer are crossed to heat object.Combustion air (or partial combustion air) needed for fuel combustion is by spiral roll film The narrow slit gap that the bottom of formula preheating body 1 is flowed up through after entering between each spiral roll film enters the combustion zone above burner. Burning fume is discharged upwards by the gap between 12 top edge of cylinder of helical coil chip preheating body 1 and the object that is heated.

In Fig. 2, the radiation that flame is sent out upward reaches the object heated, and the radiation that flame is sent out downwards reaches spiral shell Circumvolution chip preheats the spiral roll film portion 11 of body 1.Fig. 4 absorbs Fire Radiation to warm-up combustion-supporting air for spiral roll film portion 11 Schematic diagram.Six vertical bars in Fig. 4 represent six helical coils in a partial enlarged view in the spiral roll film portion 11 of Fig. 1 Piece.The narrow slit gap between the adjacent spiral roll film of two panels is injected in Fire Radiation from top, those reach the roll film surface on the left side The part of Fire Radiation absorbed by the roll film surface on the left side, rest part is reflected to the roll film surface up to the right.This A part for the radiation on a little roll film surfaces for reaching the right is absorbed by the roll film surface on the right, and rest part is reflected to again Up to the roll film surface on the left side.So by reflection/absorption several times, nearly all of Fire Radiation is by spiral roll film surface institute It absorbs.That is the gap between the adjacent roll film of every two panels in the spiral roll film portion 11 of helical coil chip preheating body 1 is for penetrating Black body effect is presented in the Fire Radiation for entering the gap.Entire spiral roll film portion 11 is for exposing to the Fire Radiation of upper part also just Black body effect is presented.Therefore, spiral roll film portion 11 can efficiently absorb Fire Radiation.

The Fire Radiation of the spiral roll film Surface absorption in spiral roll film portion 11 can be converted to thermal energy on spiral roll film surface, make Spiral roll film surface temperature increases.It is adjacent that the cold air entered by the bottom of helical coil chip preheating body 1 flows up through every two panels Roll film between gap when be in direct contact with spiral roll film surface, the thermal energy on spiral roll film surface passes to cold air so that These cold airs are heated as hot-air.Then these hot-airs flow upwardly into the combustion air that combustion zone is used as fuel combustion (or partial combustion air).Although only show that intermediate two panels spiral roll film absorbs Fire Radiation and carrys out preheated-combustion-supporting sky in Fig. 4 Gas, the adjacent spiral roll film of other arbitrary two panels have the function of identical.Spiral roll film surface is both to absorb Fire Radiation Surface, while be to be in direct contact directly to pass so as to which Fire Radiation can be converted to the thermal energy of gained with the combustion air for needing to preheat again Pass the surface of combustion air.In this specification, " heated heat-transfer area " refers to that those can absorb Fire Radiation and by flame spoke It penetrates the thermal energy obtained by converting and passes to the surface of combustion air being in direct contact with the heated heat-transfer area.It is above-mentioned " heated to pass Hot face " be meant that the surface layer of several atomic layer level thickness of these heated heat-transfer areas absorb Fire Radiation can after by Fire Radiation The thermal energy on the surface layer can be converted to, then the surface layer passes to thermal energy or partial thermal energy direct with the outer layer atom on the surface layer The combustion air of contact.Above-mentioned heated heat-transfer area using Fire Radiation can heat combustion air diabatic process be it is extremely quick and Efficiently, there is substantive area compared with the partition-wall heat transfer mode using fume afterheat warm-up combustion-supporting air of the prior art Not.

The Fire Radiation that 11 top of spiral roll film portion absorbs can be more than the Fire Radiation energy that its underpart absorbs, therefore helical coil The temperature on 11 top of piece portion is higher than the temperature of its underpart.The making material in spiral roll film portion 11 preferably using copper foil be mainly because Heat conductivility for copper is splendid (thermal conductivity factor of red copper is 393W/mK, is compared, and the thermal conductivity factor of steel is 30W/mK). Heat is advantageous to using copper foil to conduct from 11 top of spiral roll film portion to its underpart to improve the temperature of lower part so that The all surfaces that spiral roll film portion 11 is contacted with combustion air are the biography for having larger heat transfer temperature difference and preferable heat-transfer effect Hot face.

11 inside of spiral roll film portion of helical coil chip preheating body 1 is mainly hot-air, and 12 inside of cylinder is mainly hot cigarette Gas.The temperature of these hot-airs and heat smoke is higher than room temperature, and density is less than atmospheric density so that helical coil chip preheats body 1 Internal hot-air and heat smoke have larger buoyancy lift.That is due to foring one inside helical coil chip preheating body 1 A complete column of hot gas with relatively high level, helical coil chip preheating body 1 can generate more significant stack effect.In addition, work as Flame jet has the heat smoke in cylinder 12 when being sprayed from burner head a upward motive force, at the same flame jet for Hot-air in spiral roll film portion 11 has upward volume suction (its essence is momentum transmission caused by viscosity between gas).It is above-mentioned Helical coil chip preheating body 1 stack effect and flame jet motive force and volume suction promote cool ambient air by spiral 1 bottom of roll film formula preheating body flows into, and heat smoke is discharged from 1 top of helical coil chip preheating body, as shown in Figure 2.

The operative condition of helical coil chip preheating body 1 is further described below：When burner flame is lighted, flame can be to All directions send out heat radiation.The object that the radiation of those upward directions is heated absorbs, and radiation in downward direction is by spiral Roll film portion 11 absorbs.In addition, those horizontal or general horizontal direction radiation are then mainly absorbed by 12 inner surface of cylinder, cylinder 12 Inner surface converts Fire Radiation energy and its obtained thermal energy is contacted with heat smoke can be along the barrel of cylinder 12 to spiral roll film portion 11 transmit, and are subsequently used for warm-up combustion-supporting air.It can be seen that in Fire Radiation in addition to the part of those directive heating objects it Remaining outer overwhelming majority can preheat body 1 by helical coil chip and absorb.Due to rolling used in helical coil chip preheating body 1 The thickness of copper foil is only 0.1 to 0.01mm, and surface area is quite big, and heat transfer property is excellent, and the weight of copper foil in itself is very Gently, amount of stored heat very little, and the structure type of helical coil chip preheating body 1 has what sizable and combustion air was in direct contact Heat transfer area.In addition, the structure type of helical coil chip preheating body 1 also has rather low combustion air flow resistance, it is combustion-supporting Air is flowed up readily along the gap of the capwise between the adjacent spiral roll film of every two panels.From the foregoing, it can be seen that spiral The thermal energy that Fire Radiation can be converted gained by roll film formula preheating body 1 quickly, efficiently passes to combustion air.By pre- The combustion air of heat flows into combustion zone, can improve ignition temperature, improve heating effect.

The gross area of the heated heat-transfer area of the utility model helical coil chip preheating body 1 is bigger, the effect of warm-up combustion-supporting air Fruit is better.In order to carry out the comparison of intuitive size, the utility model selection is using flame external surface area during rated power As the benchmark compared, because the height and diameter of flame are easily determined from the luminous profile of flame, then by flame outer surface It is height and surface area using flame diameter as the cylinder of diameter that product, which is taken as using flame height,.It can visually see from Fig. 2： Since the position in spiral roll film portion 11 is less than flame, spiral roll film portion 11 by Fire Radiation the attainable temperature of heating institute not It can be very high.In addition, combustion air is flowed up through the gap between spiral roll film belongs to free convection, the heat exchange system of free convection Number is typically small.It is not high smaller with NATURAL CONVECTION COEFFICIENT OF HEAT in spiral roll film surface temperature, if heated heat transfer The gross area in face is only two 3 times (are equivalent to and enclose copper foil around two or three around burner head) of flame external surface area, will The effect of apparent warm-up combustion-supporting air is not had；When the gross area of heated heat-transfer area is about 10 times of flame external surface area The effect of certain warm-up combustion-supporting air can be obtained；In general, the gross area of the heated heat-transfer area in spiral roll film portion 11 is volume The effect of quite significant warm-up combustion-supporting air can be obtained when 30 times or more of flame external surface area when determining power.

The outstanding advantages of the utility model spiral roll film preheating 1 structure type of body are to be easy to get very big heated heat-transfer area The gross area, and smooth surfaces of these heated all capwises of heat-transfer area cause combustion air to flow through these and heated pass Only have during hot face very low along journey flow resistance.Further, what the stack effect that helical coil chip preheating body 1 has generated draws Wind-force enables outside air to overcome the local resistance of helical coil chip preheating 1 bottom air import of body and each heated heat-transfer area Enter burner flame combustion zone along journey flow resistance.

Comparison diagram 1 and Fig. 2：The heat loss of Fig. 1 mode of heatings is Fire Radiation heat loss, heat loss due to exhaust gas, air cooling Heat loss and heat loss due to incomplete combustion.After Fig. 2 has installed helical coil chip preheating body 1 additional, the flame that originally outwardly distributed The overwhelming majority of radiation is absorbed and for warm-up combustion-supporting air by helical coil chip preheating body 1 so as to be efficiently used.Cause This, Fig. 2 is largely avoided " Fire Radiation heat loss ".Helical coil chip preheating body 1 has also completely cut off cool ambient air pair The influence of burner flame considerably reduces " air cooling heat loss ".Flame combustion temperature after combustion air is preheated It increases, " heat loss due to incomplete combustion " also has a degree of reduction.Factors above causes the thermal efficiency of Fig. 2 heating equipments There is more significant raising compared with Fig. 1.

The amplitude that the above-mentioned thermal efficiency improves depends primarily on the size of Fire Radiation.When flame is blue-flame, naked eyes are visible Luminous flame only account for Fire Radiation can wherein sub-fraction, and the naked eyes that combustion product carbon dioxide and vapor are sent out are not Visible infrared energy accounts for the major part of Fire Radiation energy.The Fire Radiation of blue-flame can the (light-emitting zone including flame Two contained by visible ray, ultraviolet light and infrared energy and the flame periphery sent out and the heat smoke of the non-luminous region in downstream Infrared energy that carbonoxide and vapor are sent out etc.) up to the 10% to 20% of the total thermal discharge of burning.Under this situation, Fig. 2 Installed additional helical coil chip preheating body 1 after the thermal efficiency can improve about 10% to 20% compared with Fig. 1.

When flame is Huang Yanshi, it is strong that the more strongly continuous visible spectrum that carbon particulate is sent out in flame significantly increases flame radiation Degree, the Fire Radiation of Huang Yan can be (outside visible ray, ultraviolet light and infrared energies that the light-emitting zone including flame is sent out, flame It encloses and infrared energy and the hair of flame that the heat smoke of the non-luminous region in downstream institute's carbonated and vapor are sent out Visible ray and infrared energy that the carbon particulate of light and non-luminous region is sent out etc.) up to the total thermal discharge of burning 20% to 30%.Under this situation, the thermal efficiency of Fig. 2 can improve about 20% to 30% compared with Fig. 1.

In existing technical literature, " Fire Radiation " generally refers to the radiation that the light-emitting zone of flame is sent out；In most occasions Under, " Fire Radiation " does not include the infra-red radiation that the combustion product carbon dioxide of non-luminous region and vapor are sent out.This explanation In book, " Fire Radiation " refers to whole radiation that flame combustion is caused, all radiation that the light-emitting zone including flame is sent out All radiation that the combustion product of (contain visible, ultraviolet and infrared part), non-luminous region is sent out, flame shine and it is non-luminescent All radiation and above-mentioned radiation that the carbon particulate in region is sent out are by other surfaces are reflected and are scattered part and are heated The infra-red radiation that the object heated or other surfaces are sent out after object or other surfaces reach a high temperature.This is because flame fires Burning the radiation of the caused overwhelming majority can be absorbed by the preheating body of the utility model and be used for warm-up combustion-supporting air.

The utility model helical coil chip preheats body other than with the effect described above for improving the thermal efficiency, also has There are other advantageous effects.List advantage together below：

(1) heat loss can be reduced, improve the thermal efficiency；

(2) can windproof steady flame, improve safety in utilization；

(3) ignition temperature can be improved, reduces yellow flame, pollutant is reduced and is formed and discharged；

(4) harmful effect of the Fire Radiation for user can be avoided.

Requirement has sufficiently large installation sky around burner head when installing the utility model helical coil chip preheating body additional Between.Various Bunsen burners, blowtorch, torch are especially suitable for using the utility model spiral roll film in practical burning heating equipment at present Formula preheats body.The fluorescent tube (so-called burner head more than being equal to) of the Bunsen burner of actual use has sizable height, Its effect is that fuel is made to be sufficiently mixed with primary air.Various alcohol blast burners, kerosene blastburne, the jet pipe of benzine blow lamp are (i.e. equivalent In above so-called burner head) also there is sizable height, effect is to fill the liquid fuels such as alcohol, kerosene, gasoline Divide atomization.The torch pipe of torch also has sizable height.The utility model helical coil chip preheating body be applied to these Bunsen burners, When blowtorch, torch, the height in spiral roll film portion 11 should be taken as the torch of the slightly smaller than fluorescent tube of Bunsen burner, the jet pipe of blowtorch or torch The height of pipe.The diameter of helical coil chip preheating body is then limited to the size of burner head surrounding space.For example, in reality When testing room Bunsen burner one crucible of heating, crucible is typically supported on brandreth, and the fluorescent tube of Bunsen burner is to be located at iron In tripod, then the diameter of helical coil chip preheating body should be less than the diameter of brandreth.When user needs observation fire in detail During flame combustion position, it can be preheated in helical coil chip and add flame-observing hole on 12 wall surface of cylinder of body 1.

The making material of the utility model helical coil chip preheating body is best using red copper paillon, and other metals also can be selected Thin slice such as aluminium foil.It is used further to make the preheating of the utility model helical coil chip after carrying out brand-new metal foil blackening process Body can obtain better using effect.

The top edge of the middle through-hole in spiral roll film portion 11 should be less than the reason of burner head the top in Fig. 2： Flame jet needs the considerable air of volume suction around burner head to enter flame inside when being sprayed from burner head.If If the top edge of 11 middle through-hole of spiral roll film portion is higher than burner head topmost, air flowing is likely to be interrupted, and causes fire Flame root supplies hypoxgia.

Embodiment 2

The burner head surrounding space of many burning heating equipments is narrow, it is difficult to install the helical coil that embodiment 1 provides Chip preheats body.Most commonly seen in these burning heating equipments is gas-cooker that conventional home kitchen uses, and burner is only high Go out cooktop about 3cm, the distance about 2 to 3cm of burner, cooktop, burner and cookware bottom are left in the cookware bottom supported on pan bracket Between space it is extremely narrow.

It is difficult to install the heating equipment of helical coil chip preheating body for these, the utility model provides another utilization The prosposition of Fire Radiation warm-up combustion-supporting air radiates finned preheating body, as illustrated in Figures 5 and 6.The finned preheating body 2 of prosposition radiation Including cylinder 22, the bottom supporting of the cylinder 22 is on cooktop, top braces round bottom frying pan.In the cylinder of 22 bottom edge of cylinder Circumferentially direction equably offers a series of air intlet 23 on wall, and on the barrel on 22 top sides edge of cylinder circumferentially Direction equably offers a series of smoke outlet 24.A series of elongated radiation 211 He of fin is disposed with inside cylinder 22 Short radiates fin 212.These elongateds radiate fin 211 and short radiation fin 212 is in centered on the central axes of cylinder 22 Radially, elongated radiation fin 211 and short radiation fin 212 are alternateed and are arranged evenly and at intervals (referring to Fig. 6).It is short The length of type radiation fin 212 is about the half of the length of elongated radiation fin 211.These elongateds radiate 211 He of fin Distal end of the short radiation fin 212 from 22 central axes of cylinder is fixedly mounted on 22 inner wall of cylinder.Elongated radiate fin 211 from Elongated 211 height of radiation fin of the proximal end of 22 central axes of cylinder is higher by the height of cooktop not higher than furnace end of gas cooker.Respectively A proximal end of the elongated radiation fin 211 from 22 central axes of cylinder collectively forms a middle through-hole, and the diameter of the middle through-hole is big In furnace end of gas cooker outer diameter about 1 to 4cm, the top edge of the middle through-hole is concordant with furnace end of gas cooker.Radiation in the present embodiment Shape fin is substantially concordant with furnace end of gas cooker, because referred to herein as prosposition radiates finned preheating body.

Cylinder 22 makes of heat proof material, and elongated radiation fin 211 and short radiate fin 212 (below by both wings Piece, which merges, is referred to as " radial fin ") it is made of zero paillon of red copper list.The method that 22 inner wall of cylinder installs radial fin can For weld, rivet, fixed with fastener the methods of, but it is preferable to use following methods：Commercially available coiled copper foil is pulled out, is shakeout It is cut afterwards according to the number and shape of required radial fin；Processing and copper foil thickness on the barrel of cylinder 22 A series of vertical narrow slits being adapted；Each distal end of radial fin cut is passed through again corresponding on the barrel of cylinder 22 Vertical narrow slit, then by the vertical narrow slit of protrusion, the bending of copper foil outside 22 barrel of cylinder it is a bit of, finally in cylinder 22 Thermal insulation material is wrapped on barrel outer surface and is tightened.

It removes the pan bracket that gas-cooker was equipped with originally during use from cooktop first, prosposition is then radiated into finned preheating The middle through-hole alignment furnace end of gas cooker of body 2 will radiate finned preheating body 2 and be placed on cooktop, then pacifies round bottom frying pan The top edge at 22 top of cylinder for radiating finned preheating body 2 is placed on, as shown in Figure 5.Gas-cooker generation is lighted after installing Flame, flame and flue gas heat round bottom frying pan by convection current and radiant heat transfer.Meanwhile radial fin surface absorbs burner fire The heat radiation that flame is sent out to horizontal direction and side-lower.Combustion air (or partial combustion air) needed for fuel combustion is by sky Gas import 23 is in direct contact with radial fin surface and is preheated when flowing through the narrow slit gap between radial fin after entering The combustion zone above furnace end of gas cooker is flowed into afterwards.Burning fume is discharged by smoke outlet 24.

The radial fin of the finned preheating body 2 of prosposition radiation of the present embodiment is less than flame against burner flame Position is not in contact with flame.The reason of being arranged so be：(1) even if gas-cooker opens big fire gear, radial fin will not It is fired, in order to avoid cross cause thermal damage；(2) it needs that radial fin is avoided to generate " cold-wall effect " (i.e. low temperature with direct flame contact Surface causes imperfect combustion for the quenching effect of combustion reaction mixture, leads to carbon monoxide in flue gas concentration over-standard).Fig. 5 In 6, black body effect (its is presented for injecting the Fire Radiation in the gap per the gap between the adjacent radial fin of two panels Principle is identical with Fig. 4 of embodiment 1) so that these radial fins can efficient absorption Fire Radiation reach higher temperature Degree.Heat resisting temperature for making the red copper paillon of radial fin is generally up to 900 DEG C.Moreover, enter from air intlet 23 Cold air stream through playing cooling effect to these radial fins during radial fin surface.Therefore the utility model prosposition Burner flame high temperature can be born by radiating the radial fin of finned preheating body 2, will not cross cause thermal damage.Prosposition radiation is finned Preheat body 2 after a period of use, copper foil surface color will gradually become dark red or black, this is because copper foil at high temperature Piece oxidation by air is formed on its surface cuprous oxide surface layer.Copper foil surface becomes its thermal radiation absorption rate after dark red or black It will increase, and be conducive to obtain the effect that preferably absorption Fire Radiation carrys out warm-up combustion-supporting air.

Although the height of the cylinder 22 of the finned preheating body 2 of the present embodiment prosposition radiation only has about 10cm, inside it Gas temperature is very high, still can generate stack effect as described in Example 1, heat smoke is made to be discharged by smoke outlet 24, cold air It is flowed by air intlet 23.Due to what is generated when flame jet is sprayed at a high speed from furnace end of gas cooker fire hole for burner ambient gas Volume suction causes to become depression (also known as negative pressuren zone) around burner fire hole, therefore the combustion-supporting sky flowed by air intlet 23 Gas is pressed in ambient atmosphere will flow to burner week under the driving of pressure differential between burner negative pressure along the gap between radial fin Then the depression enclosed is entered by volume inspiration in flame jet.

The all surface of all radial fins of the finned preheating body 2 of the present embodiment prosposition radiation is heated heat transfer Fire Radiation simultaneously can be converted the thermal energy of gained and pass to the combustion air that is in direct contact with it by face, absorbable Fire Radiation.This 30 times or more of burner flame external surface area when the gross area of a little heated heat-transfer areas is about gas-cooker rated power.

The core technology of the finned preheating body 2 of prosposition radiation of the present embodiment and the helical coil chip preheating body 1 of embodiment 1 It is characterized in identical, is exactly：The preheating body has a series of heated heat-transfer area (spiral in Fig. 2 for absorbing Fire Radiation The surface of elongated radiation fin 211 and short radiation fin 212 in roll film portion 11, Fig. 6), a series of heated heat transfer It is combustion air channel between the adjacent heated heat-transfer area of each two in face, Fire Radiation can be converted gained by the preheating body Thermal energy passes to the combustion air for flowing through and being in direct contact the heated heat-transfer area.Specifically, these preheating bodies are by several gold Belong to thin slice to form, the surface of the sheet metal is heated heat-transfer area, and several sheet metals are arranged as these sheet metals Being formed between surface can be as the narrow slit gap of combustion air channel, and the equal court of the aperture position in these narrow slit gaps and direction To flame, black body effect can be generated to Fire Radiation and carry out efficient absorption Fire Radiation energy, so as to flow through these narrow slit gaps Combustion-supporting air flow preheated.The form of the helical coil chip preheating body 1 of embodiment 1 be suitable for having around burner head compared with The occasion of large space.And the finned preheating body 2 of prosposition radiation of the present embodiment is then suitable for burner as household gas range The occasion of head narrow space.The finned preheating body 2 of prosposition radiation and the helical coil chip of embodiment 1 of the present embodiment are pre- The concrete form of hot body 1 is different, but operation principle, application method and advantageous effect are essentially identical.The radial wing of the present embodiment Radial fin of the piece in flame, Fig. 5 is by temperature of the temperature that Fire Radiation heating reaches higher than spiral roll film in Fig. 2 Degree.The infra-red radiation that the radial fin of high temperature is sent out in itself has the bottom of a pan additional heat effect.

The yellow flame of appearance can be reduced with the present embodiment prosposition radiation finned preheating body 2 is used during circular bottom pot cooking.Existing skill The household gas range of art is present when upper circular bottom pot opens big fire cooking, and there was only flame root be blue-flame, and in the middle part of flame and tail portion occurs big Area Huang flame.This is because opening fuel gas buring during big fire needs more combustion air, the natural flowing and expansion of air are only relied on It dissipates and is susceptible to for hypoxgia.Many radial fin is located at flame after radiating finned preheating body 2 using the present embodiment Side-lower, against flame (referring to Fig. 5).Very light in weight of these radial fins itself, thermal capacity is small, and its arrangement mode is to fire Black body effect is presented in flame radiation.Under the closely heating of Fire Radiation, these radial fins heat up quickly reaches quite high Temperature.It is empty between radial fin is flowed through by the air that air intlet 23 enters under the effect of 22 stack effect air inducing power of cylinder Buoyancy lift can be generated after being gradually heated up during gap by radial fin surface, then these are by a part for the combustion air preheated Combustion zone is flowed up under buoyancy lift effect, rest part flows to enters fire after depression around furnace end of gas cooker by volume inspiration Flame jet stream.As it can be seen that more sufficient and process can be provided to gas kitchen range flame by radiating finned preheating body 2 using the present embodiment The combustion air of preheating so as to improve flame oxygen supply situation, reduces the yellow flame of appearance.

The present embodiment a further improvement is that adding smoke evacuation regulating mechanism.As an example, it is given below and is suitable for this reality Apply three kinds of different forms of the smoke evacuation regulating mechanism of example：

(1) the conical contraction section that one section of height is about 1.5cm is added in 22 top edge of cylinder, be uniformly distributed circumferentially A series of smoke outlets 24 are changed to be opened on the cone contraction section, and a rotating cylinder, the rotating cylinder are added outside the cone contraction section Match with conical contraction section outside wall surface, offered on the rotating cylinder and conical 24 corresponding smoke evacuation of contraction section smoke outlet Mouthful.The rotating cylinder can be rotated during use, when the smoke outlet of the rotating cylinder is completely superposed with conical contraction section smoke outlet 24, for row Mouth standard-sized sheet；It is that smoke outlet is fully closed when the smoke outlet of the rotating cylinder and completely misaligned conical contraction section smoke outlet 24；Rotation Exhaust smoke level is adjusted in the rotating cylinder.

(2) 22 top edge of cylinder only opens up three larger-diameter smoke outlets, and each smoke outlet connects one section of smoke exhaust pipe, should Smoke exhaust pipe is equipped with the valve for adjusting exhaust smoke level.

(3) ring-shaped flue is added outside 22 top edge smoke outlet of cylinder, which connects one section of horizontal smoke exhaust pipe, should Smoke exhaust pipe reconnects the smoke exhaust barrel of one section of capwise, which is equipped with the valve for adjusting exhaust smoke level.

The application method of above-mentioned smoke evacuation regulating mechanism is：Smoke outlet standard-sized sheet when gas-cooker opens big fire gear, when moderate heat, open one Partly, crack smoke outlet during small fire.It is finely adjusted on the basis of above-mentioned, is exactly the aperture for slowly reducing smoke outlet, observes simultaneously Furnace end of gas cooker flame combustion situation.As long as flame combustion is stablized, do not occur apparent yellow flame, cigarette do not occur down, it is possible to continue Reduce the aperture of smoke outlet, to obtain required exhaust smoke level and the optimum combustion air air inlet introduced by stack effect Amount.

The main function of above-mentioned smoke evacuation regulating mechanism is that residence time and adjusting of the extension heat smoke below the bottom of a pan are combustion-supporting Air inlet amount.When family kitchen is cooked at present in round bottom frying pan cooking on gas-cooker first wife's pan bracket seat, round bottom frying pan The bottom of a pan, which flows up heat smoke, has no barrier effect, and heat smoke can promptly drift about upwards along the bottom of a pan of round bottom frying pan It walks, residence time of the heat smoke below the bottom of a pan is very short, there was only one layer of heat smoke of lower thickness below the bottom of a pan.Utilize this implementation The smoke evacuation regulating mechanism of example can extend residence time of the heat smoke below the bottom of a pan.For example, gas-cooker opens low baking temperature gear, generation Exhaust gas volumn is Q, and smoke evacuation regulating mechanism is adjusted to the aperture of very little.At this point, since the local resistance of smoke evacuation regulating mechanism is to heat smoke Barrier effect, the space more than furnace end of gas cooker fire hole inside cylinder 22 will be completely filled with heat smoke, these heat smokes exist Residence time below the bottom of a pan is significantly extended, and the heat smoke amount of larger thickness is maintained below the bottom of a pan.Meanwhile cylinder 22 The stack effect of internal heat smoke still can overcome the local resistance of smoke evacuation regulating mechanism to generate exhaust smoke level Q and introduce appropriate Combustion air so as to maintain flame stablize burning.Because the radiation of flame and heat smoke is volume radiation, round bottom frying pan The radiant heating intensity that the bottom of a pan is received is directly proportional to the exhaust gas volumn below the bottom of a pan, so the heat smoke that 22 inside of cylinder is full of can Significantly increase the heating effect for the bottom of a pan.

On the basis of radial fin shown in Fig. 6, every radial fin is subject to a degree of bending so that originally Straight radial fin becomes the every arc surface shape for having identical radian measure, can obtain and preferably absorb Fire Radiation, preheating The effect of combustion air.

The unmentioned part of the present embodiment is similar to Example 1, and details are not described herein again.

Embodiment 3

The present embodiment radiates finned preheating body for an a kind of high position for pan.Referring to Fig. 7, high position radiation is finned It preheats body 3 and includes cylinder 32, the bottom supporting of the cylinder 32 is on cooktop, top fixedly or detachably mounting circular ring plate 35.There is the trepanning that the outer diameter with pan matches at the middle part of Circular Plate 35, and two handles of pan are supported on Circular Plate 35 On the trepanning edge of middle part.Circumferentially direction equably offers a series of air intlet on the barrel of 32 bottom edge of cylinder 33, and circumferentially direction equably offers a series of smoke outlet 34 on the barrel at 32 middle part of cylinder.Inside cylinder 32 It is disposed with a series of elongated radiation fin 311 and short radiation fin 312.The arranged radially mode of these radial fins with Embodiment 2 is identical (the A-A sectional views of Fig. 7 are Fig. 6).Only show that elongated radiates fin 311 in the figure 7.Every elongated radiates wing The upper end of piece 311 and short radiation fin 312 extends to 35 lower surface of Circular Plate all the way up.That is 32 inside edge of cylinder Short transverse from cooktop up to 35 lower surface of Circular Plate have centered on the central axes of cylinder 32 radially, elongated radiation The radial fin that fin 311 and short radiation fin 312 are alternateed and arranged evenly and at intervals.These elongateds radiate fin 311 and short radiation distal end of the fin 312 from 32 central axes of cylinder be fixedly mounted on 32 inner wall of cylinder.In cooktop to combustion gas The position of stove grease head highness, elongated radiation proximal end of the fin 311 from 32 central axes of cylinder collectively form a middle through-hole, in this The diameter of portion's through-hole is more than furnace end of gas cooker outer diameter about 1 to 4cm, and the top edge of the middle through-hole is concordant with furnace end of gas cooker. More than furnace end of gas cooker 2 to 3cm to the position of 35 height of Circular Plate, and elongated radiation fin 311 and short radiate the near of fin 312 End collectively forms one for accommodating the cylindrical cavity of pan.32 outer surface of cylinder and 35 upper surface of Circular Plate are equipped with heat preservation Layer.Radial fin radiates finned preheating body largely higher than furnace end of gas cooker because referred to herein as high-order in the present embodiment.

The finned preheating body 3 of high position radiation is placed in cooktop during use, pan is supported on 35 middle part of Circular Plate opens Hole edge is along upper.Point cooking stove burning, heating kettle side wall when heat smoke by flowing upwards after being flowed out under the bottom of a pan.When heat smoke reaches annulus 35 lower surface of plate cooling after flow into the gap between radial fin, then along 32 internal face of cylinder flow downwardly to smoke outlet 34 to Outer discharge.During flowing above, heat smoke heated the bottom of a pan and pot side wall, and partial fume waste heat is passed to radial wing Piece.

Difference in height of the effective height of 32 stack effect of cylinder for smoke outlet 34 and air intlet 33 in the present embodiment.Although The difference in height only has 10cm or so, but the temperature of its internal flame and heat smoke is quite high, therefore remains to generate more significant Stack effect.The air inducing power of the stack effect makes outside air by the circumferentially equally distributed air intlet 33 of 32 bottom edge of cylinder It flows into.Then gradually added when these combustion airs flow to burner around the burner under the attraction of negative pressuren zone by radial fin surface Heat.

It is the lowermost at the lowest temperature of every short radiation fin 312 in the short transverse of cooktop to Circular Plate 35 It is smoke outlet 34 to position between Circular Plate 35 at the position of air intlet 33, the high temperature of every short radiation fin 312. Therefore, the fume afterheat that smoke outlet 34 is recycled to the short radiation fin 312 between Circular Plate 35 is downward in thermo-conducting manner It is transferred at the lowest temperature of short radiation fin 312, then heating combustion air.Therefore, the high-order radiation of the present embodiment Finned preheating body 3 can be simultaneously using Fire Radiation energy and the fume afterheat of recovery section come warm-up combustion-supporting air.

The helical coil chip preheating body of finned preheating body and the embodiment 1 of high position radiation of the present embodiment and embodiment 2 The finned operation principle, application method and advantageous effect for preheating body of prosposition radiation is essentially identical.In addition, the high position of the present embodiment Radiating finned preheating body also has following advantageous effect：(1) Fire Radiation heat loss and air cooling heat loss are avoided, And reduce heat loss due to exhaust gas；(2) side wall of pan becomes heating surface；(3) 32 inner most of cylinder is filled with hot cigarette Gas significantly extends the residence time of heat smoke, improves the convection current for pot and radiant heating effect；(4) by flame The radial fin that radiation and fume afterheat heating reach a high temperature has additional infrared heating to act on pot side wall and the bottom of a pan； (5) influence of the overflowing pot to furnace end of gas cooker can be avoided.

Observation Fig. 7 can be seen that one only unique when being cooked on the finned preheating body of high position radiation using pan More significant heat loss, is exactly heat loss due to exhaust gas, therefore can obtain the higher thermal efficiency.For example, when gas-cooker opens low baking temperature by The flue-gas temperature that smoke outlet 34 is discharged is about 120 DEG C, and heat loss due to exhaust gas accounts for about the 10% of the total thermal discharge of fuel combustion, then thermal effect Rate is 90%.

In order to enhance stack effect and air inducing power, smoke outlet 34 can also be changed to be arranged in Circular Plate 35 in the present embodiment And it adds smoke evacuation regulating mechanism and (a series of discharges fume upward for example, along the circumferential direction equably being opened up on 35 edge of Circular Plate Smoke outlet, place an a series of turntable for equally offering smoke outlets again in Circular Plate 35.The turntable is rotated to change Exhaust smoke level is adjusted in the smoke outlet of Circular Plate 35 and the relative position of the smoke outlet on the turntable).

In addition, under the design condition that can reach larger stack effect air inducing power, it is high making and installing the present embodiment Radial fin at the height concordant with furnace end of gas cooker when radiating finned preheating body of position can carry out part and be bent to form water Flat section either installs horizontal these horizontal segments of washer or horizontal catch for reduction and gas-cooker in radial fin side Per the width in gap between the adjacent radial fin of two panels at the concordant height of burner, effect is blocking by air intlet 33 The cold air vertical upflow of entrance, makes more combustion airs flow to depression around burner.

Similar with Fig. 7 of the present embodiment, the finned preheating body 2 of prosposition shown in fig. 5 radiation of embodiment 2 can also be used for Pan, application method are：It takes round bottom frying pan away, a Circular Plate with middle part trepanning is placed in 22 top edge of cylinder, it will Pan is put into the middle part trepanning of the Circular Plate, but need to adapt to different-diameter and height with the use of the branch pot utensil of other auxiliary The cookware of degree.

The unmentioned part of the present embodiment is similar with above example, and details are not described herein again.

Embodiment 4

A kind of relatively simple embodiment of the utility model on household gas range is that still reservation gas-cooker is original The pan bracket of outfit only increases a preheating body.As shown in figure 8, a kind of circular cone laminated for the utility model preheats body Schematic diagram.Referring to Fig. 8, pan is placed on the pan bracket that gas-cooker was equipped with originally, inside pan bracket and furnace end of gas cooker Between annular space place circular cone laminated preheating body 4.The total height of the preheating body is 5cm (less than in pan bracket Portion spatial altitude 1cm), outer diameter is 24cm (diameter for being equal to pan bracket inner space), and a diameter of 12cm of middle through-hole (is more than Furnace end of gas cooker outer diameter 2cm).Circular cone laminated preheating body 4 is nested by ten taper cone barrels, and each taper cone barrel is with thickness The copper foil of 0.01mm is made, and each taper cone barrel has the middle through-hole of 12cm diameters, a upper taper cone barrel and next circular cone Gap between cylinder is 5mm.Dotted line in Fig. 8 in pan bracket represents the barrel (copper foil) of these taper cone barrels, dotted line and dotted line Between gap of the gap between copper foil.The gap of circular cone mesa shape between every two layers of copper foil leads to for combustion air Road.The 5mm that vertically downward bends of the bearing for a upper taper cone barrel bottom between a upper taper cone barrel and next taper cone barrel High circular copper foil, circumferentially direction equably opens up on the circular copper foil of these 5mm high bent vertically downward There is air intlet.That taper cone barrel bottom of the bottom is supported on stove by the circular copper foil of the 5mm high bent vertically downward Face, circumferentially direction also equably offers air intlet on the circular copper foil of the 5mm high bent vertically downward so that Gap between that taper cone barrel and cooktop of the bottom is also the channel that combustion air flows to furnace end of gas cooker.

While heating pan using time point cooking stove burning flame, the gap between every two layers of copper foil is to Fire Radiation Black body effect (its principle is identical with Fig. 4 of embodiment 1) is presented, makes the heated heating of circular cone laminated preheating body 4, every two layers of copper foil Air between piece between gap and the copper foil and cooktop of the bottom in gap is heated therewith to heat up, these hot-airs generate Buoyancy lift and thus to burner direction flowed into flame combustion area by the attraction of negative pressure around burner.Therefore, the present embodiment It can obtain and the similar effect using Fire Radiation warm-up combustion-supporting air of embodiment 1 to 3.

In order to achieve the effect that more significant warm-up combustion-supporting air, the present embodiment circular cone laminated preheats the nestable circle of body 4 Cone cylinder number is at least 5, and in other words, the number of plies for forming the copper foil of circular cone laminated preheating body 4 at least (is preferably used for 5 layers Very thin copper foil).If only placing a taper cone barrel in pan bracket, then the surface of the taper cone barrel will reflect most of hot spoke It penetrates, although the surface also absorbs part Fire Radiation and transfers heat to the partial air being in contact with the taper cone barrel surface, But the heated and heat transfer area that the surface of a taper cone barrel can be formed is extremely limited, along with free convection heat transfer coefficient compared with It is small, thus while only placing inside pan bracket a taper cone barrel will not generate the effect of apparent warm-up combustion-supporting air.Only adopt Copper foil is nested with multilayer, black body effect is generated come efficient absorption flame to Fire Radiation using gap between every two layers of copper foil Radiation energy, while be nested copper foil using multilayer and obtain very big heated and heat transfer area, significant preheated-combustion-supporting could be obtained The effect of air.

The thickness of commercially available copper foil down to 0.01mm hereinafter, light-weight, surface area it is big (compare, the thickness of common A4 paper For 0.1mm).Copper foil has good heat resistance, thermal conductivity, corrosion resistance, ductility, machinability, solderability, surface The shape for being bent or bending can be kept after slickness, toughness and bending or bending, can be restored to the original state again after applying external force, And copper foil can bear largely to stretch without being broken, therefore copper foil is very suitable for making this practicality newly The preheating body of type.

The copper foil of certain length is folded, crimps, distorts and/or is coiled in a variety of ways to be made Into various various forms of preheating bodies.Provide two examples again below：

(1) it is 754cm (being multiplied by 3.14 by the external diameter 24cm of the preheating for work of drawing up to obtain multiplied by with 10 circles), width by length Copper foil for 12cm (subtracting middle through-hole diameter 12cm by preheating external diameter 24cm to obtain) is 12cm's around an outer diameter It rolls to be approximately perpendicular to cylinder and holding copper foil surface and rolls with cylinder central axes continuous ten circle of coiling, enclose copper foil To be formed around rolling to be spiraled with cylinder similar to helical form as wire spring, and copper foil close to roll with cylinder one The a little higher than opposite side in side；Then, upper a piece of copper foil uniform per the gap between the adjacent copper foil of two panels is adjusted with other tools Piece and under a piece of copper foil it is each between gap (being 5mm) formed combustion air channel；It removes and rolls with cylinder, vacated Cylindrical space forms middle through-hole.Preheating body so obtained can be described as spiral winding chip preheating body.Its spiral shell with embodiment 1 The main distinction of circumvolution chip preheating body is：Helical coil chip preheating body is the position being located at below burner head, combustion-supporting Air be entered between spiral roll film by preheating body bottom be capwise combustion air channel, flow in an axial direction then up To flame combustion area.Spiral winding chip preheating body is to be located at the position substantially concordant with burner head, and combustion air is by pre- The trend entered between spiral winding piece around hot body has the combustion air channel of smaller angle with horizontal direction, then mainly along diameter To flowing to flame combustion area.

(2) copper foil that length is 600cm, width is 12cm continuously, is repeatedly folded (along length along its length Primary folding is done per 6cm in direction), the shape of continuous WWW is formed when making it from the side, then will fold finish it is whole The side of copper foil is against the annulus outside wall surface rolled with cylinder that an outer diameter is 12cm, by whole copper foil headtotail As hollow ring shape, copper foil shows the shape of continuous WWW when circumferentially seeing the preheating body from horizontal direction by side Shape is combustion air channel per gap between the adjacent folding copper foil of two panels.It removes and rolls with cylinder, that is vacated is cylindric Space forms middle through-hole.Preheating body so obtained can be described as multiple folded preheating body.

Above-mentioned spiral winding chip preheating body, application method, principle and the effect of multiple folded preheating body and circular cone are nested Formula preheating body is roughly the same.The radial fin of embodiment 2 and 3 can preheat body, spiral by the circular cone laminated of the present embodiment Body is preheated around chip or multiple folded preheating body is replaced.That is cancelling radial fin 211 and 212 in Fig. 5, protect Cylinder 22 is stayed, a circular cone laminated preheating body, spiral winding chip preheating body or multiple folded are put into inside cylinder 22 Preheat body (its size should match with 22 internal diameter of cylinder), these preheating bodies absorb Fire Radiation warm-up combustion-supporting airs effect with Radial fin is roughly the same.

The preheating body for the various structure types that above example provides belongs to same total inventive concept in different occasions Under concrete form.Helical coil chip, prosposition radiation are finned, finned, the circular cone laminated of high-order radiation, spiral winding chip and Each form of multiple folded preheating body is made of several sheet metals, is formed between adjacent foil surfaces Many narrow slit gaps, the aperture position in these narrow slit gaps and direction allow Fire Radiation to inject narrow slit towards flame Black body effect occurs inside gap, these narrow slit gaps form combustion air channel again simultaneously.The preheating body of such structure feature Can be with efficient absorption Fire Radiation energy, and have very big transmission of heat by contact area, and the combustion-supporting sky to supplying flame with combustion air Air-flow merely comprises very low air flow resistance.

Circular cone laminated made of placing the copper foil of 0.01mm thickness inside pan bracket using in Fig. 8 preheats body 4 as example Son：First, between two layers adjacent of copper foil gap for combustion air channel only bring very low air flow resistance because without Combustion air is hindered to flow to burner around pan bracket, anoxycausis will not be caused.Secondly, it is empty between two layers adjacent of copper foil Gap can efficient absorption Fire Radiation and copper foil heat conductivility it is good thus can be integrally by Fire Radiation energy heat temperature raising. Then, combustion air can flow through and be in direct contact whole copper foil surfaces to obtain very big heat transfer area.Simultaneously meet with The preheating body of upper condition can obtain the significant effect for utilizing Fire Radiation warm-up combustion-supporting air.

Oxygen and nitrogen in air do not absorb any heat radiation in itself, are fully transparent for Fire Radiation.This Utility model, which provides, will use original Fire Radiation outwardly scattered and disappeared in fire heating object basic mode to absorb conversion shown in Fig. 1 Carry out a kind of simple and effective technological means of warm-up combustion-supporting air for thermal energy.

Embodiment 5

In the case of having sufficient space around burner head, the implementation of the utility model should increase absorption as far as possible The gross area of the heated heat-transfer area of Fire Radiation.Fig. 9 is a kind of with the finned preheating body of low level radiation of the utility model The structure diagram of gravity-flow ventilation burning heating equipment.Referring to Fig. 9, the finned preheating body 5 of low level radiation of the present embodiment includes Circle drum barrel 521 and taper cone barrel 522.Circle drum barrel 521, taper cone barrel 522 central axes and the central axes of burner be overlaps (below Referred to as central axes).A series of elongated radiation fin 511 and short radiation fin 512 are disposed with inside taper cone barrel 522, These elongateds radiate fin 511 and short radiate fin 512 centered on central axes radially, elongated radiation fin 511 It alternates with short radiation fin 512 and arranges evenly and at intervals.These distal uppers of radial fin from central axes are consolidated It is scheduled on 522 inner wall of taper cone barrel.Each proximal end of the elongated radiation fin 511 from central axes collectively forms a middle through-hole, The middle through-hole matches with burner head outer diameter.Circle drum barrel 521 is a circle drum type surrounded by circle drum type metal wall surface Empty cylinder, circle drum type metal wall surface lower part open up that there are one smoke outlets, which connects smoke exhaust barrel 56 through flue, on flue It is additionally provided with valve 57.It is surrounded with thermal insulation material in circle drum barrel 521 and 522 outside wall surface of taper cone barrel.Radial wing in the present embodiment Piece is less than burner head, because referred to herein as low level radiates finned preheating body.

511 and of circle drum barrel 521, taper cone barrel 522 and elongated radiation fin of the finned preheating body 5 of the present embodiment low level radiation Short radiation fin 512 is preferably integrally cast into type so that these components have good heat-conductive characteristic between each other. The methods of finned preheating body 5 of the present embodiment low level radiation can also use welding, riveting, be connected, be assembled with fastener makes.

The present embodiment low level radiation it is finned preheating body 5 basic functional principle be similar to more than embodiment.It is for example, right Spiral roll film portion 11 in Fig. 2 is can be seen that than Fig. 2 and Fig. 9 and spiral roll film corresponds to taper cone barrel 522 and radiation in Fig. 9 Shape fin, the cylinder 12 of Fig. 2 correspond to the circle drum barrel 521 of Fig. 9, their basic role is identical.The present embodiment can reach with The identical advantageous effect of upper embodiment.In addition, the other structures feature also band of the finned preheating body 5 of low level radiation of the present embodiment More advantageous effects are carried out：

(1) there is the operating parameter adjustable range of bigger

The smoke exhaust barrel 56 that the present embodiment is added is conducive to generate more significant stack effect, and the row that the stack effect generates Smoke and absorbing quantity can adjust by valve 57, and burner is adapted to so as to easily adjust exhaust smoke level and combustion air air inflow Open big fire, moderate heat, small fire different operating modes.It discharges fume in the method for adjustment of valve 57 and embodiment 2 in the present embodiment regulating mechanism Application method it is identical.

(2) convection current of heat smoke and the heating effect of radiant heat transfer can be enhanced

The circle drum barrel 521 of the present embodiment is matched with smoke exhaust barrel 56 and valve 57 can form as in drum barrel 521 round in Fig. 9 The petal-shaped of burning fume shown in curved arrow line circulates that (distribution of its velocity of flue gas is axis pair centered on central axes Claim distribution).Specifically, 56 stack effect of smoke exhaust barrel and valve 57 appropriate aperture be capable of providing suitable exhaust smoke level and During suitable local flow resistance at valve 57, the kinetic energy of burner flame jet stream drive burning fume near central axes to Upper flowing, then burning fume along the bottom of added hot object, flow upwards by outer direction.Burning smoke air-flow closely justifies drum barrel for these It is flowed still further below during 521 internal face, then burning fume flows into smoke outlet for part, is discharged outward through smoke exhaust barrel 56.Meanwhile big portion Divide the depression of burning fume inflow flame root, and mix and flow up with flame jet, it is low not enter flame root The burning fume of baric area can also flow up under the influence of the transmission of flame jet momentum.Above procedure is formd shown in Fig. 9 Circle drum barrel 521 inside the petal-shaped using burner central axes as symmetry axis of burning fume circulate.Because heating object The infrared radiation heating intensity that body is received is directly proportional to exhaust gas volumn below, so a large amount of burning smokes in circle drum barrel 521 The circulating of gas can significantly increase burning fume and, for the heating effect of object, further improve the thermal efficiency.

(3) wall surface temperature can be reduced and reduce radiation loss

Circle 521 wall surface of drum barrel is far from flame, and its heat can be conducted to downwards radial fin, thus wall surface temperature compared with It is low, radiation loss can be reduced and reduce the requirement to the heat resistance of its making material.

(4) radial fin has the heated heat transfer area of bigger

The present embodiment air inducing power sufficiently large since smoke exhaust barrel 56 provides, can arrange inside taper cone barrel 522 Number is more, larger sized radial fin, and the gap between radial fin can be narrower, so as to obtain bigger by Hot heat transfer area.The radial fin of the present embodiment is more to receive circle other than the radiant heating for receiving burner flame The heating of a large amount of infra-red radiations that burning fume is sent out of 521 internal circulation flow of drum barrel.

The adjusting of 57 aperture of valve particularly significant (adjusting method ginseng when the present embodiment gravity-flow ventilation burning heating equipment operates The application method for regulating mechanism of discharging fume is seen in embodiment 2).If 57 standard-sized sheet of valve, discharges fume when burner opens small fire gear 56 air inducing power of cylinder may lead to excessive outside air by entering between radial fin in circle drum barrel 521, these excess Air can take away heat, reduce the thermal efficiency.Therefore must suitably control valve 57 aperture.

The present embodiment is circulated using circle drum barrel 521 most beneficial for the petal-shaped for generating burning fume.Circle drum barrel 521 is also Shape such as waist drum shape, cylindrical shape etc. of other more convenient making may be used.

Be suitble to using the present embodiment low level radiation it is finned preheating body exemplary situations be commercial gas or fuel cooking range such as Hotel, restaurant, the common Chinese dish cooking oven in dining room, large stove, soup stove etc..The representative configuration of the double tail gas cooking stoves of commercial double-dismiss Size is：2500x1250x810mm.It is with the size of the finned preheating body of low level radiation that it is adapted to：Circle 521 bore of drum barrel 400mm, height 270mm, a diameter of 600mm at half height；522 upper end diameter 400mm of taper cone barrel, lower end diameter 800mm, height 270mm.

The utility model selection sees circle drum barrel 521 and taper cone barrel 522 and radial fin as a low level radiation wing Chip, which preheats the heat that the reason of body 5 is round drum barrel 521, can pass to radial fin and for warm-up combustion-supporting air.Obviously, One of other effects of circle drum barrel 521 are to form chamber wall (or furnace wall, stove wall).The utility model can also select to rouse circle Cylinder 521 sees chamber wall as, and seeing taper cone barrel 522 and radial fin as a low level radiates finned preheating body.Its The heated heat-transfer area for being used to form and absorbing Fire Radiation energy and warm-up combustion-supporting air is also similarly included in the preheating body of its embodiment Component, can also include for fix the accessory of these components and play bearing, position, keep out the wind, current limliting, it is heat-insulated, Other accessories of the effects that drainage, water conservancy diversion, heat conduction.

Embodiment 6

The supply of combustion air is mainly by gravity-flow ventilation, therefore embodiment 1 to 5 requires institute in above example 1 to 5 The preheating body form of use must have rather low air flow resistance.But considerable part is forces in commercial burning heating equipment Ventilation supply combustion air, industrial combustion heating equipment then generally use forced ventilation.Combustion-supporting sky is supplied applied to forced ventilation During the combustion apparatus of gas, the structure type of larger pressure drop may be used in the utility model preheating body.As shown in Figure 10, it is this A kind of structure diagram of forced ventilation burning heating equipment with porous breathable formula preheating body of utility model.Referring to figure 10, porous breathable formula preheats what shape of the body 6 with round drum barrel 62 and on the inside of circle drum barrel 62 and round drum barrel 62 was adapted Porous breathable body 61 forms hollow sandwich A between circle drum barrel 62 and porous breathable body 61.Circle 62 wall surface of drum barrel tangentially offers Air intlet.Pass through the air intlet stream of circle 62 wall surface of drum barrel after combustion air (or the partial combustion air) pressurization of wind turbine 68 Enter hollow sandwich A, combustion zone is entered after then the excessively porous ventilation body 61 of these combustion-supporting air flows is preheated.62 bottom of circle drum barrel peace Burner is filled, has annular smoke outlet 64 around burner.Metal can be used for circle drum barrel 62 or nonmetallic materials make, outer surface It can be with and without insulating layer.The air inlet of the extraction outside air of wind turbine 68 is equipped with high-effective dust-removing filter.

The primary effect of porous breathable body 61 is to absorb Fire Radiation Fire Radiation can and can be converted to the thermal energy biography of gained Pass the combustion air for entering combustion zone through the porous breathable body.Porous breathable body 61 should meet following condition simultaneously：First, With the larger area contacted with combustion air, internal surface area is much larger than external surface area so that combustion air flows through porous Heating is significantly heated during the internal surface area of ventilation body 61；Second, there is higher Fire Radiation absorptivity；Third has Good heat resistance；4th, there is good heat conductivility；5th, there is appropriate air flow resistance so that by wind turbine 68 combustion airs being passed through are first filled with round hollow sandwich A between drum barrel 62 and porous breathable body 61, then just equably flow All air holes through porous breathable body 61 enter combustion zone.As an example, make porous breathable body 61 four kinds are given below Method.One of these four methods or other appropriate methods can be used according to actual conditions to make porous breathable body 61：

(1) porous metal bodies：Metal material is selected to obtain the metal thick wall of required circle drum shape, Ran Hou with casting On the direction on metal thick wall surface densely, equably drilling penetrate metal thick wall.When for mini-plant such as commercialization During Chinese dish cooking oven, the wall thickness of metal thick wall is 20 to 30mm, vent diameter 1mm, surface percent opening 70%, volume porosity 70%；When for large and medium-sized equipment such as industrial furnace, the wall thickness of metal thick wall is 100 to 150mm, and vent diameter 5mm, surface is opened Porosity 70%, volume porosity 70%.Since above-mentioned porous metal bodies have a higher surface percent opening, and the depth of air hole/ Aperture ratio reaches 20 to 30, and black body effect (its principle and embodiment 1 can be generated for the Fire Radiation for injecting these air holes Fig. 4 is identical), therefore above-mentioned porous metal bodies have higher Fire Radiation absorptivity.The interior table of air hole in porous metals body Face is to absorb Fire Radiation and Fire Radiation can be converted to the thermal energy of gained to pass to and flow through these air holes and enter combustion zone The heated heat-transfer area of combustion air.The utility model regards the half side wall of each air hole of porous metal bodies as a heated biography Hot face, the other half side wall also regard a heated heat-transfer area as, and combustion air is formed between the two adjacent heated heat-transfer areas and is led to Road.When combustion air flows into combustion zone by these air holes, these air holes provide sizable contact and heat-transfer area Long-pending and appropriate flow resistance.

(2) metallic fiber body：Select commercial metals tapetum fibrosum finished product (thickness 5mm, average pore size 0.1mm, volume porosity 85%) the metal protecting wire net of round drum barrel shape, is respectively mounted in its interior outside.Metallic fiber blanket is the tool made of metal fiber wire Have the microstructure of three-dimensional space grid, micropore has Fire Radiation higher absorptivity, and have larger internal surface area, Preferably heat-resisting and heat conductivility and appropriate flow resistance.The internal surface area of metallic fiber body, which can be used as, absorbs Fire Radiation And the thermal energy that Fire Radiation can be converted to gained passes to and flows through the heated heat-transfer area of the combustion air that micropore enters combustion zone.

(3) foamed ceramic body：Select commercially available foamed ceramics board finished product (per block length 100mm, width 100mm, thickness 8mm, Pore-size distribution is 10 to 100nm, volume porosity 90%).Shape shown in Figure 10 is spliced into using many pieces of foamed ceramic panel Porous breathable body 61.The micropore of foamed ceramic panel has Fire Radiation higher absorptivity, and have larger internal surface area, Preferable heat resistance and appropriate flow resistance.The internal surface area of foamed ceramic panel can be used as absorption Fire Radiation and will be fiery The thermal energy of flame radiation energy conversion gained passes to the heated heat-transfer area for flowing through the combustion air that micropore enters combustion zone.

(4) honeycomb ceramic body：When for medium-and-large-sized combustion apparatus, porous breathable formula preheating body 61 can be by many honeycombs Ceramic body is piled into.The common specification of commercially available honeycomb ceramic body is such as：The appearance and size 50x50x200mm of single honeycomb ceramic body, Honeycomb channel is linear, and thickness of honeycomb wall is 0.2 to 0.5mm, and cell spacing is 1 to 3mm, and depth/relative aperture of honeycomb channel is 70 to 200.Come from combustion zone Fire Radiation inject these honeycomb channels in its inner surface by multiple reflections/absorption so as to send out Raw black body effect, therefore above-mentioned honeycomb ceramic body has higher Fire Radiation absorptivity.Honeycomb channel in ceramic honey comb body Inner surface is to absorb Fire Radiation and Fire Radiation can be converted to the thermal energy of gained to pass to and flow through these honeycomb channels and enter combustion Burn the heated heat-transfer area of the combustion air in area.

Figure 10 shown devices using when light burner, with air combustion reaction occurs for fuel.Porous breathable body 61 absorbs Fire Radiation simultaneously preheats those combustion airs for entering combustion zone through porous breathable body 61.Mainly moved in burner flame jet stream Under the driving of energy, the petal-shaped that flue gas generates as shown in curved arrow line in Figure 10 circulates.Partial fume is discharged fume through annular Mouth 64 flows downward, and fume afterheat is used for pre-heating fuel (or evaporating liquid fuel), and the flue gas after cooling discharges.

The circle drum barrel 62 and porous breathable body 61 of the present embodiment together constitute the combustion of the forced ventilation burning heating equipment Burn locular wall (or hearth wall, chamber of a kitchen range wall).The present embodiment can equally obtain 4 advantageous effects and embodiment that embodiment 1 is listed 5 the 1st to 3 advantageous effects listed.In addition, the present embodiment also has following outstanding advantages compared with prior art：

(1) chamber wall is without the use of refractory material, is particularly suitable for thermic load occasion jumpy.

Chamber wall (or hearth wall, chamber of a kitchen range wall) generally use of existing combustion apparatus (such as industrial furnace, commercial gas-fired stove) Refractory material.Fast-changing in thermic load, refractory material wall surface, which bears larger thermal stress, makes it easily crack. Refractory material is crushed, is peeled off after a period of use, it is often necessary to which repairing is replaced.One of exemplary is commercial Chinese meal Cooking stove, burner rating is up to 60kW.Since firepower is powerful, the chamber of a kitchen range drastically rises during the igniting cooking of commercial Chinese dish cooking oven Temperature, the chamber of a kitchen range cools after cooking, so heats and cools down repeatedly and causes commercial Chinese dish cooking oven refractory material stove wall Service life is shorter, is generally needed replacing using once to two years.Similarly, the industrial furnace operation temperature of many types has Large change, is easily damaged refractory material furnace wall, often needs to the manual maintenance that blowing out carries out refractory material, time-consuming.

The present embodiment, which justifies the chamber wall that drum barrel 62 and porous breathable body 61 collectively form, can substitute refractory material manufacture Chamber wall.First, the surface percent opening of the present embodiment porous breathable body 61 is up to more than 70%, and air hole have it is larger Depth, for the internal surface area of porous breathable body 61 much larger than external surface area, the Fire Radiation for coming from combustion zone can be through air hole 61 inside generation black body effect of porous breathable body is injected to be evenly heated inside entire porous breathable body 61, and not only It is to be heated towards the surface of combustion zone.Secondly, the present embodiment porous breathable body 61 is far from burner flame, and its curved shape Sizable leeway expanded with heat and contract with cold is provided, the heat that the dramatic temperature variation from room temperature to flame temperature generates can be reduced and answered Power.Again, metal, metallic fiber, foamed ceramics or the Extruded Monolithic Celluar Ceramics that the present embodiment porous breathable body 61 uses in itself may be used To bear to heat and cool down repeatedly the larger thermal stress generated without being easily broken.Finally, the combustion air being passed through by wind turbine 68 There is good cooling effect to porous breathable body 61.When above-mentioned factor causes the present embodiment porous breathable body 61 for chamber wall There is very long service life；And the volume porosity of porous breathable body 61 reaches more than 70%, and it is more light, it is particularly suitable for Thermic load has burning heating equipment such as heat-treatment furnace, melting furnace, the roasting of large change in periodicity or batch process procedures Stove, drying oven and various cooking stoves.

(2) close to room temperature, radiation loss is extremely low in outer wall of combustion chamber face.

The combustion chamber wall surface temperature of existing combustion apparatus is higher, and radiation loss is larger.Due to porous breathable in the present embodiment The internal surface area of body 61 is much larger than external surface area, and the cold air being passed through by wind turbine 68 and porous breathable body 61 are towards hollow sandwich A Side contact when increasing extent of temperature it is little, hollow sandwich A is filled with the cold air being passed through by wind turbine 68, thus circle drum barrel 62 towards The convection current heat output that the side of hollow sandwich A receives is little.And porous breathable body 61 towards hollow sandwich A side temperature compared with Flame that is low and can penetrating porous breathable body 61 and gas radiation amount are limited, and only a small amount of flame and gas radiation can be worn It crosses air hole (and without impinging on air hole side wall) and eventually arrives at round drum barrel 62 towards the side of hollow sandwich A, therefore justify drum barrel 62 The radiant heat transfer amount received towards the side of hollow sandwich A is also little.62 outer surface of circle drum barrel as outer wall of combustion chamber face Temperature is a little higher than room temperature, even if without using its surface heat radiating loss of thermal insulation material it is very low.

(3) the accumulation of heat loss of chamber wall can be reduced.

By taking prior art typical industry stove as an example, refractory material furnace wall thickness is generally hundreds of millimeters, insulation layer thickness Also there are hundreds of millimeters, it is larger that the absorption Fire Radiation of refractory material furnace wall is heated up caused accumulation of heat loss.The present embodiment The volume porosity of porous breathable body 61 is light-weight more than 70%, and is flowed through inside it by combustion air, porous breathable body 61 Temperature it is relatively low, caloric receptivity it is smaller, therefore can reduce accumulation of heat loss.

(4) heating effect to object can be enhanced.

Prior art attempts to heating effect of the infra-red radiation enhancing to object of chamber wall, but refractory material wall surface It is difficult to be processed into the surface nature with high IR emissivity.The present embodiment porous breathable body 61 is easily located towards combustion zone side It manages into and avoids property with high IR emissivity.

Combustion apparatus shown in Figure 10 can be diffusion type or partially premixed combustion system.For example, it is burnt using diffusion type During mode, fluid fuel (such as combustion gas or fuel oil) is sent into combustion zone by burner, whole air needed for completely burned by Wind turbine 68 is sent into combustion zone by porous breathable body 61.During using partially premixed combustion system, fluid fuel and primary air Mixture combustion zone is sent by burner, the auxiliary air needed for completely burned is sent by wind turbine 68 by porous breathable body 61 Enter combustion zone.

In addition, the air hole of porous breathable body 61 is arranged in certain direction, can also be generated in combustion zone gas cyclone, Reflux enhances the effect that petal-shaped shown in Figure 10 circulates.By the hollow folder between circle drum barrel 62 and porous breathable body 61 If layer A is divided into stem portion, each section sets individual air intlet, can make combustion air more uniformly through porous Gas 61 flows into combustion zone.Circle drum barrel 62 can also be changed to use other shapes such as waist drum shape, cylindrical shape etc..The present embodiment also may be used To add a heat exchanger, preheated for recovered flue gas and be heated to combustion air to be passed through round drum barrel 62 after the temperature of hundreds of degree again Hollow sandwich A between porous breathable body 61.

The inner surface of the present embodiment porous breathable body 61 is the heat for absorbing Fire Radiation and Fire Radiation being converted to gained The heated heat-transfer area for the combustion air being in direct contact with it can be passed to.Air hole (combustion air inside porous breathable body 61 Channel) it is surrounded by these heat-transfer areas that are heated.The present embodiment and above example 1 to 5 are same total inventive concept Concrete form under different occasions.The porous breathable body 61 of the present embodiment is suitble to make under the occasion of forced ventilation oxygen supply burning With, and the various preheating body forms that embodiment 1 to 5 provides are suitble to use (while also under the occasion of gravity-flow ventilation oxygen supply burning It can be used in the case where forced ventilation supplies oxygen the occasion of burning, for example, the finned preheating body of radiation or circular cone laminated preheating body can To replace the porous breathable body 61 in Figure 10).

Embodiment 7

The present embodiment is related to dispersed combustion heating equipment.As shown in figure 11, there is vortex wing for one kind of the utility model The structure diagram of the forced ventilation burning heating equipment of chip preheating body.Referring to Figure 11, the finned preheating body 7 of vortex includes interior Cylinder 721 and outer cylinder 722 form hollow sandwich B between the inner cylinder 721 and outer cylinder 722.The top of outer cylinder 722 It is closed respectively by dome plate 751 and round bottom plate 752 with bottom.Inner cylinder 721 is fixedly mounted on 751 lower surface of dome plate, inner circle There is gap between the lower end of cylinder 721 and round bottom plate 752.Lower half inside inner cylinder 721 be equipped with using 721 central axes of inner cylinder as The swirl shape fin 71 that sheet metal axial symmetry distribution, being more than 0.5mm with thickness at center makes.In outer cylinder 722 End wall surface tangentially offers air intlet, tangentially offered at the wall surface of about 3/4ths height of inner cylinder 721 fuel into Mouthful, dome plate 751 is equipped with smoke outlet.The object heated is located at 751 middle part of dome plate.78 be air blower.79 is utilize cigarette The heat exchanger of gas waste-heat combustion air.Inner cylinder 721 and swirl shape fin 71 make of heating resisting metal material.Outer cylinder 722nd, dome plate 751 and round bottom plate 752 can use heating resisting metal material or non-metallic refractory to make.Outer cylinder 722, dome plate 751 and the outside wall surface of round bottom plate 752 have thermal insulation material.

Under stabilization combustion state during use after ignition, outside air air blower 78 is passed through heat exchanger 79 and recycles cigarette Reach about 700 DEG C of air themperature after gas waste heat.The air of these 700 DEG C of temperature then by 722 wall surface of outer cylinder air into Opening's edge tangentially sprays at a high speed, eddy flow is formed in the hollow sandwich B between inner cylinder 721 and outer cylinder 722, with inner cylinder 721 Outside wall surface generate strong heat convection thus heated by 721 wall surface of inner cylinder of higher temperature and reach about 850 DEG C of air Temperature.Gap between lower end and round bottom plate 752 of the air of these 850 DEG C of temperature through inner cylinder 721 enters swirl shape fin Then gap between 71 enters the burning above swirl shape fin 71 under the guiding of swirl shape fin 71 in the form of eddy flow Area.Black body effect (its original is presented for injecting the Fire Radiation in the gap per the gap between the adjacent swirl shape fin of two panels Reason is identical with Fig. 4 of embodiment 1) so that these swirl shape fins 71 being capable of the warm that sends out of combustion zone of the efficient absorption above it Radiation thus reach quite high temperature.The aforementioned air for being reached about 850 DEG C of temperature by the heating of 721 wall surface of inner cylinder is flowing Reach about 1000 DEG C of temperature through being further heated during swirl shape fin 71.

Fuel is tangentially sprayed at a high speed by the fuel inlet of 721 wall surface of inner cylinder, and eddy flow is formed inside inner cylinder 721. The air generated at air swirl, swirl shape fin 71 between above-mentioned inner cylinder 721 and outer cylinder 722 at hollow sandwich B The direction of rotation of fuel swirl (or eddy flow of its combustion reaction mixture) in eddy flow and inner cylinder 721 be it is identical (more than Eddy flow at three is simultaneously clockwise or counterclockwise).1000 DEG C of temperature combustion air by swirl shape fin 71 Between gap enter combustion zone and fuel jet in the form of eddy flow while also enter combustion zone in the form of high-speed rotational And under conditions of fuel generally conforms to equivalent proportion with combustion air supply amount, dispersed combustion occurs for 721 internal-combustion area of inner cylinder (also known as high-temperature and low-oxygen combustion).Under dispersed combustion state, 721 internal-combustion area of inner cylinder is that oxidation is occurring instead everywhere The fuel (and its thermal decomposition product) and the mixture of air and combustion product answered, the more uniform (temperature of temperature and ingredient everywhere About 1200 DEG C, fuel concentration about 1%, oxygen concentration about 5%, remaining is combustion product), reach fuel everywhere and oxidation occurs instead Required temperature condition is answered, but is only possible to the reactant concentration that the fuel of 1% concentration and the oxygen of 5% concentration meet occur everywhere Condition, thus it is only possible to occur dispersed combustion that is mild, occupying most of volume in inner cylinder 721.Be not in fuel with The vigorous oxidation that oxygen concentration occurs between 21% air in very short time and little space reacts (i.e. traditional fire Flame).

Following comparison diagram 11 illustrates dispersed combustion and traditional diffusion type, premixed or air suspended type flame area with Fig. 1 Not.During Diffusion flame, air that fuel and the oxygen concentration of surrounding that burner in Fig. 1 sprays are 21%, which meets, occurs chain Formula is reacted, and moment generates strong light and heat, forms conical flame shown in FIG. 1.Premixed flames and air suspended type flame Situation is similar.In fig. 11, fuel swirl and air swirl cause fuel, air and combustion product inside inner cylinder 721 to fill Divide mixing.The fuel sprayed into from fuel inlet can not possibly meet with the air that oxygen concentration is 21%, and chain reaction will not occur, Be not in traditional conical flame.The combustion air of 1000 DEG C of temperature sprayed into from the gap between swirl shape fin 71 is It is met with the mixture (fuel concentration for wherein containing only 1%) in inner cylinder 721 so that it was originally 21% oxygen concentration Fully be diluted to about 5% oxygen concentration (when the oxygen concentration of 1000 DEG C of temperature be 21% combustion air from swirl shape Gap between fin 71 has reached generation oxidation when spraying into combustion zone, meeting with the mixture containing 1% fuel concentration anti- The condition answered so that soon oxidation consumption falls these 1% fuel, but not generates Wen Sheng drastically).At this point, in inner circle 721 various places insides of cylinder occur simultaneously it is mild, depending on fuel molecule and its thermal decomposition product molecule and oxygen molecule collision probability Oxidation reaction so as to form dispersed combustion.

Compared with traditional combustion mode, the major advantage of this dispersed combustion of the present embodiment is：

(1) it only needs to supply the combustion air for meeting equivalent proportion with regard to completely burned can be reached, residue is substantially free of in smoke evacuation Oxygen, thus exhaust gas volumn is reduced, the smoke evacuation avoided caused by remaining oxygen and corresponding nitrogen in smoke evacuation carry away heat is hot Loss.It compares, traditional combustion mode, which needs to be passed through a large amount of combustion airs (excess air coefficient is often up to more than 1.5), can be only achieved Completely burned, remaining oxygen concentration is up to 15% in smoke evacuation, and exhaust gas volumn and heat loss due to exhaust gas are quite big.

(2) heating effect is good, because being strong eddy flow around heating object, convective heat-transfer coefficient is big, and inner cylinder 721 Inside 71 all of the above of swirl shape fin be uniformly light-emitting dispersed combustion area, to the radiant heating intensity of heating object Greatly.

(3) adjustable extent is big, without the restrictive factor for being tempered, taking off fire etc. of traditional flame, in low-power work Under condition and high power operating mode can stable operation, and low calorie fuels can also stablize burning.

(4) carbon monoxide content is low in discharging fume, because in 71 all of the above of swirl shape fin to burn inside inner cylinder 721 Area, the residence time of fuel (and its thermal decomposition product) and the mixture of air and combustion product in combustion zone is very long, sufficiently high Temperature region there is the sufficiently long reaction time to reach complete oxidation.

(5) amount of nitrogen oxides is low in discharging fume, because there is no the offices that violent chain type oxidation reaction generates in dispersed combustion Portion high-temperature region only has 1200 DEG C at maximum temperature, the nitrogen molecule in combustion air is not up to excited to participate in the condition of reaction.

(6) without yellow flame.There is Huang Yanshi since violent chain type oxidation reaction forms localized hyperthermia's anoxic in traditional flame Area and cause part of fuel cracking generate carbon particulate (PM2.5).Maximum temperature is no more than 1200 DEG C during dispersed combustion, not up to fires Material cracking generates the condition of carbon particulate.

(7) the heat resistance requirement of making material can be reduced, it is high without part because 721 internal temperature of inner cylinder is uniform Temperature, and 721 lower part of inner cylinder connects with swirl shape fin and makes its heat that can be conducted to swirl shape fin, 721 outside wall surface of inner cylinder There is air swirl, radiating condition is preferable, therefore can reduce the heat resistance requirement of making material.It compares, traditional burning adds Hot equipment generates strong luminescence and exothermic flame in the crawl space of combustion chamber, generates localized hyperthermia, combustion chamber wall surface by It Fire Radiation continuous heating and is difficult to radiate, it is more demanding to the heat resistance of equipment making material.

The ignition procedure of the present embodiment dispersed combustion heating equipment is described as follows：It, will be a small amount of in the case of cold start-up Fuel continuously, low speed sprayed by fuel inlet, be passed through combustion air to air intlet with air blower 78, existed with igniter Fuel inlet is nearby lighted a fire, and forms traditional Diffusion flame；Gradually increase fuel and combustion air supply amount, flame volume with Increase.It is kept for a period of time, a complete set of equipment is made gradually to heat up using the Diffusion flame；When between swirl shape fin 71 The combustion air temperature that gap sprays enters dispersed combustion state when reaching the aerial ignition temperature of this kind of fuel, spray at a high speed Enter fuel and combustion air forms eddy flow, control combustion air supply amount (excess air coefficient is about 1).

One of key point of the present embodiment dispersed combustion heating equipment is to spray into from the gap between swirl shape fin 71 The combustion air of combustion zone must have sufficiently high temperature (to generally require and reach 800 to 1000 DEG C or more, depending on fuel kind Class).When spraying into the ignition temperature of the combustion air temperature of combustion zone less than this kind of fuel from gap between swirl shape fin 71 then Ignition condition is not achieved, causes imperfect combustion.The innovative point of the present embodiment dispersed combustion heating equipment essentially consists in combustion-supporting sky The preheating method of gas includes three phases：

(1) the partition heating period：Combustion air heating is reached about 700 DEG C with 79 Mist heat recovering of heat exchanger.Heat exchange Device 79 can be used conventional recuperator and (septate heat transfer with radiant heat transfer section and convection current heat transfer segment is illustrated that in Figure 11 Device).The flue-gas temperature discharged by the smoke outlet on dome plate 751 is about 1200 DEG C.The fume side of heat exchanger 79 and air side Heat transfer temperature difference is up to 500 to 200 DEG C.The heat transfer temperature difference is quite big so that 79, heat exchanger need to set smaller heat transfer area.

(2) the high-speed rotational stage：Air by 722 wall surface of outer cylinder air intlet tangentially at a high speed spray into after in hollow folder Eddy flow is formed in layer B, strong heat convection is generated with 721 outside wall surface of inner cylinder.In 721 internal face of inner cylinder, combustion reaction Also with 721 internal face of inner cylinder strong heat convection occurs for mixture eddy flow, and 721 internal face of inner cylinder is also by large volume Dispersed combustion area radiant heating.Therefore, the heat transfer boundary condition in high-speed rotational stage is fairly good.Although heat exchange area less (energy Be only limitted to 721 outer wall area of inner cylinder for high-speed rotational heat exchange), heat-exchange time it is of short duration, inlet temperature can be by this stage 700 DEG C of combustion air heating reaches about 850 DEG C of outlet temperature.

(3) the radiant heating stage：Gap between swirl shape fin 71 is for injecting the combustion zone that comes from the gap Heat radiation is presented black body effect, thus swirl shape fin 71 can the heat radiation that sends out of efficient absorption dispersed combustion area so as to reach Quite high temperature.And the structure type of the preheating body be scheduled in limited volume it is sizable direct with combustion air The heated heat transfer area of contact.Therefore dispersed combustion area radiation energy can be utilized to be 850 DEG C by inlet temperature in this stage to help Combustion air heating reaches 1000 DEG C or more of outlet temperature.

Above-mentioned partition heating-triphasic combustion air preheating method of high-speed rotational-radiant heating can be by combustion-supporting sky Gas is preheated to very high temperature, and dispersed combustion state is reached in combustion apparatus, and be continuous operation, stable state, efficiently , it is simple and cheap.It compares, the recuperator that the prior art only uses a routine is difficult to preheat combustion air Reach 800 DEG C or more of temperature, because the heat transfer temperature difference between the combustion air and flue gas of very high temperature is too small, recuperator Heat exchange efficiency it is not high, only using a conventional recuperator needs very huge heat exchanger area could be by combustion-supporting sky Gas preheating reaches 1000 DEG C or more of temperature.The high-temperature and low-oxygen combustion equipment of the prior art is preheated by heat regenerator Combustion air reaches 1000 DEG C or more of high temperature, needs to configure the burner and heat regenerator of even numbers number, and continually It is passed through heat smoke and combustion air in turn toward heat regenerator, at the same time burner is lighted a fire and stopped working and (burnt in turn The switching cycle of device and heat regenerator is within one minute), it is that the intermittent burning of unstable state operates, is susceptible to pressure The security risks such as fluctuation, detonation, de- fire, tempering, loss of ignition, and its switching mechanism and control system are considerably complicated and expensive. The present embodiment is continuous using the dispersed combustion equipment of partition heating-three stage of high-speed rotational-radiant heating warm-up combustion-supporting air Burn operation has huge superiority compared with existing heat-accumulating type high-temperature low oxygen combustion technology.The company of the utility model After continuous disperse formula burner igniting can continuous burning, internal pressure of combustion chamber fluctuation is small；The import of fuel and combustion air is in Different location, therefore will not be tempered；The possibility of detonation and de- fire is also greatly lowered.

Any form that air-flow can be made to generate eddy flow can be used in the present embodiment swirl shape fin concrete shape.The prior art is normal Air-flow is made to generate eddy flow with the guide vane for having certain angle with airflow direction (number of guide vane is generally not required to too much).This Embodiment swirl shape fin and prior art guide vane difference lies in：The present embodiment swirl shape fin should be as closely as possible Arrangement makes to form narrow slit gap, and swirl shape fin should have the depth that larger depth makes narrow slit gap between adjacent swirl shape fin Degree/opening width ratio reaches 20 to 30, and the number of swirl shape fin relatively should obtain the total of sufficiently large heated heat-transfer area more Area can be only achieved the purpose for absorbing Fire Radiation and warm-up combustion-supporting air in this way.

The preheating body of the various structure types of the finned preheating body of the present embodiment vortex and above example is same total Inventive concept concrete form in varied situations.The present embodiment is supplied oxygen for forced ventilation, preheating body is not required to have very low Air flow resistance.Other than swirl shape fin, the present embodiment can also use the preheating body knot that other embodiments provide Configuration formula such as porous breathable body.For example, in Figure 10 shown devices of embodiment 6, by the air hole of porous breathable body 61 by certain Direction arrangement makes combustion zone generate gas cyclone effect, and porous breathable body 61 is enough combustion air being preheated to 1000 DEG C When, dispersed combustion can occur inside the device.

The present embodiment both can be applied to Small Combustion equipment such as commercial blowing type gas or fuel cooking range, radiant tube heating Device etc. can also be applied to for example various industrial furnaces of large and medium-sized combustion apparatus.

Embodiment 8

Applicable industry stove design specification mainly includes the content of three parts：Burner, furnace body and heat recovery heat exchanger. Burner mainly has premixed and diffusion flame burner etc., for fuel and air to be sent into combustion zone and reach stable burning, It has some problems to be overcome for example to have：The excess air more than comparison is needed to can be only achieved completely burned, flame region temperature It is very high, formation of nitrogen oxides is larger.Furnace body has some problems to be overcome for example to have for forming combustion chamber：Fire proofed wood Expect that the accumulation of heat loss and outer surface radiation loss of furnace wall and insulating layer are larger, refractory material is frequently necessary to repair in some cases. Heat recovery heat exchanger is used for Mist heat recovering, has some problems to be overcome for example to have：Heat exchange area is limited, more than flue gas Heat recovery rate is not high, limited often by industrial furnace using area condition the installation site of heat recovery heat exchanger from industrial furnace compared with Far, high-temperature flue gas pipeline and high temperature air pipeline are long, and radiation loss is big.

In order to be conducive to overcome the above problem, the present embodiment is by the burner, furnace body and heat recovery heat exchanger of industrial furnace Merge into an entirety.As shown in figure 12, it is a kind of forced ventilation combustion that body is preheated with heat exchanging pipe formula of the utility model Burn the structure diagram of heating equipment.Referring to Figure 12, heat exchanging pipe formula preheating body 8 include heat exchanging pipe 81, the first cylinder 821, Second cylinder 822, third cylinder 823, the 4th cylinder 824, dome plate 851 and round bottom plate 852.Third cylinder 823 and the 4th is justified It is closed respectively by dome plate 851 and round bottom plate 852 top and bottom of cylinder 824.Between 823 and the 4th cylinder 824 of third cylinder Form hollow sandwich C.First cylinder 821 is fixedly mounted on 851 lower surface of dome plate, the lower end of the first cylinder 821 and round bottom plate There is gap between 852.Second cylinder 822 is fixedly mounted on 852 upper surface of round bottom plate, the upper end of the second cylinder 822 and dome plate There is gap between 851.Heat exchanging pipe 81 passes through the first cylinder 821 and the second cylinder 822, and heat exchanging pipe 81 connects combustion zone in Empty interlayer C, heat exchanging pipe 81 be circumferentially direction be uniformly distributed in it is within third cylinder 823 and with 823 diameter of third cylinder It is at a certain angle to shape.Hollow sandwich C is passed through after the pressurization of wind turbine 88 of extraneous combustion air, then through heat exchanging pipe 81 spray into combustion zone and generate eddy flow in combustion zone.It is used in the fuel inlet that 852 middle part of round bottom plate opens up by fuel at a high speed The mode of eddy flow sprays into combustion zone.Burning fume flows into first by the gap between 821 lower end of the first cylinder and round bottom plate 852 It between 821 and second cylinder 822 of cylinder, flows then up, using between 822 upper end of the second cylinder and dome plate 851 Gap is flowed between the second cylinder 822 and third cylinder 823, is then flowed downward, the flue gas after cooling in round bottom plate 852 by opening If smoke outlet discharge.

The preheating of combustion air includes partition heating period and radiant heating stage.The partition heating period is：Heat exchanging pipe Combustion air in 81 flows to the combustion-supporting sky during 821 position of the first cylinder in 81 pipe of heat exchanging pipe from hollow sandwich C Gas by pipe outside heat smoke heat.The radiant heating stage is：Combustion air in heat exchanging pipe 81 is from 821 position of the first cylinder The combustion air during the nozzle position for being injected into combustion zone in 81 pipe of heat exchanging pipe is flowed to by flame and flue gas spoke Penetrate heat temperature raising.Since the nozzle of heat exchanging pipe 81 is directed towards combustion zone, flame and gas radiation can be injected by nozzle to exchange heat Black body effect (its principle is identical with Fig. 4 of embodiment 1) occurs for 81 inside of tubulation, therefore 81 inner surface of heat exchanging pipe is absorbs fire Flame, which radiates and Fire Radiation can be converted to the thermal energy of gained, passes to the heated heat-transfer area of the combustion air in heat exchanging pipe 81.Position For injecting 81 all pipeline section appearances of heat exchanging pipe between 81 all pipeline section outer surfaces of heat exchanging pipe within the first cylinder 821 Black body effect can also occur for flame and gas radiation between face, therefore these 81 pipeline section outer surfaces of heat exchanging pipe also absorb flame And gas radiation energy, and these 81 pipeline section outer surfaces of heat exchanging pipe are also by heat smoke Convective Heating, then with partition-wall heat transfer Combustion air in mode heating tube.

As described above, heat exchanging pipe 81 manages Convective Heating of the interior combustion air in the partition heating period by flue gas, in spoke Penetrate the heating period simultaneously by flame and the gas radiation heating injected in pipe, be incident upon the flame of tube outer surface and gas radiation adds The heating of the smoke convection of heat and tube outer surface.The combustion air temperature that combustion zone is sprayed by 81 nozzle of heat exchanging pipe easily reaches In combustion zone dispersed combustion occurs for fuel ignition temperature.When the combustion air temperature that 81 nozzle of heat exchanging pipe sprays is still below firing Expect to generate traditional diffusion type or partially premixed flame in combustion zone during ignition temperature.

The present embodiment can obtain the advantageous effect listed by embodiment 1,5,6,7.The further advantage of the present embodiment is：

(1) burner, furnace body and heat recovery heat exchanger are integrated into an equipment.Heat exchanging pipe formula preheats body 8 to combustion It burns area and the preheated combustion air to reach a high temperature is provided, and these combustion airs is made to stablize after being sufficiently mixed with fuel and are burnt, portion Play the role of burner with dividing；Heat exchanging pipe formula preheating body 8 also constitutes combustion chamber, plays the role of furnace body；Simultaneously Heat exchanging pipe formula preheating body 8 heats combustion air using fume afterheat, plays the role of heat recovery heat exchanger.The present embodiment Reach the function of burner, furnace body and heat recovery heat exchanger in same equipment, it is compact-sized, it is greatly lowered equipment appearance Face heat dissipation area, is especially omitted the high-temperature flue gas pipeline between prior art furnace body and heat recovery heat exchanger and high temperature is empty Feed channel further reduced heat loss.

(2) the moving air heat exchanging tubulation 81 in heat exchanging pipe 81 has cooling effect.The heat of first cylinder 821 It can conduct to heat exchanging pipe 81.Therefore, the heat resistance of the making material of 81 and first cylinder 821 of heat exchanging tubulation requires not It is high.

The infra-red radiation of 81 outer surface of heat exchanging pipe within the medial surface of (3) first cylinders 821 and its first cylinder 821 The heating effect to object can be enhanced.

Heat exchanging pipe and the first cylinder 851, third cylinder 853, dome between first cylinder 851 and third cylinder 853 Plate 851 and round bottom plate 852 are equivalent to the recuperator for together constituting the prior art.Therefore, in order to enhance heat smoke to helping The convection current heat-transfer effect of air is fired, the various technological means of prior art recuperator can be used.Such as：In order to enhance hot cigarette Gas can add thermofin, in the first cylinder 821 and to the convection current heat-transfer effect of combustion air in 81 outer surface of heat exchanging pipe More cylinders or helical baffle plates are added between three cylinders 823 so as to be divided into more heat smoke channels.Due to this implementation Example is this particularity of radially arranged heat exchanging pipe in cylindrical space, can also be in the first cylinder 821 and third cylinder Several branch pipes of heat exchanging pipe 81 are set between 823, and several branch pipes are passed through combustion zone after merging；By the first cylinder 851 and third Heat exchanging pipe between cylinder 853 is set as the form of coil pipe.Furthermore it is possible to by the heat exchanging pipe 81 within the first cylinder 821 The injection direction so as to change combustion air is transferred, is bent or coiled to pipeline section according to certain rules, is conducive to produce in combustion zone Raw a variety of different draught effects, and the length of 81 pipeline section of heat exchanging pipe within the first cylinder 821 can be extended, contribute to Improve the preheating temperature of combustion air.On the other hand, the fuel inlet of greater number is added in round bottom plate 852 to spray at a high speed Fuel, can gas cyclone in strengthen burning area, be conducive to the reflux of burning fume and the formation in large volume dispersed combustion area.This Outside, the spout that combustion air is sprayed into combustion zone of heat exchanging pipe 81 can install a Venturi transmission ejector again, and utilization is combustion-supporting Air ejection flue gas makes combustion air be sufficiently mixed in Venturi transmission ejector come the hypoxia that reaches a high temperature with flue gas.

The utility model regards the half side wall in the every pipe of heat exchanging pipe 81 as a heated heat-transfer area, the other half side wall Also regard a heated heat-transfer area as, combustion air channel is formed between the two adjacent heated heat-transfer areas.

Forest fire acquirement kindling material lights Huo Duilai and bakes hunting seat caused by hominid from thunder and lightning before 1000000 years Meat when, combustion heating mode can be used that Fig. 1 shows (burner are fiery heap, and object is meat).Due to the big wind in field Walk considerable calory burning, the air cooling heat loss that flame is subject to is very big, and hominid is when Huo Duishang bakes meat The thermal efficiency may only have more than ten percent.

The pottery epoch of B.C. tens thousand of years, our ancestors in earth house with several blocks of stones prop a crock and Firewood grass also can be by Fig. 1 shows (burner are the faggot lighted, and object is crock) come food in the crock that boils between stone.Earth house Interior calm, the air cooling heat loss that flame is subject to is relatively low.But flame, easy for hypoxgia, heat loss due to incomplete combustion is larger. At this moment the acquired thermal efficiency may only have twenties percent.

The Iron Age before and after the first years of a historical period in Christian era, people begin to use by the native stove with chimney of firewood heating iron pan.With Fig. 1 shows when burner be the faggot lighted, object is iron pan.Flame periphery also has stove wall, and Fire Radiation is made by the absorption of stove wall Stove heating (is lost) for accumulation of heat, and stove outer wall radiates and (lost for heat-loss at wall) towards surrounding.Since chimney is with good Smoke evacuation and air inducing effect, people use and have been likely to be breached hundred in the preferable acquired thermal efficiency during the native stove with chimney / thirties.

In today of 21st century, every household all uses gas-cooker.The heat loss situation of household gas range and Fig. 1 and The explanation of " background technology " part is consistent, predominantly heat loss due to exhaust gas, Fire Radiation heat loss, air cooling heat loss, endless Full combustion heat loss, also cookware outer surface radiation loss etc..The household gas range to dispatch from the factory before the several years that we use daily The thermal efficiency be generally forties percent.Newest national standard GB30720-2014《Household gas utensils energy efficiency market and energy Imitate grade》It is required that the thermal efficiency of the gas cooker to dispatch from the factory after 1 day April in 2014 must reach more than 58%.

It makes a general survey of daily make a fire of people over 1000000 years to cook in mode evolution process, the thermal efficiency is increased from more than ten percent Forties percent.Nevertheless, forties percent thermal efficiency means in the heat that every household burn-up combustion gas generates The part deficiency half being utilized effectively.It is similar to the above, regrettably still have in industrial, civilian and traffic and transport field Similarly generally the thermal efficiency is more low for the thermal hardware of many types.Obviously, people use at present combustion technology and Heat energy utilization mode is far from perfect.In industrial, civilian and traffic and transport field, fossil fuel comprehensive energy utilization rate respectively may be about 55%th, 35% and 25%, and the problems such as a large amount of combustion of fossil fuels results in severe air pollution and greenhouse effects.It is following we Still there is the space of very huge energy-saving and emission-reduction.For this purpose, we are more neededly directed to the reduction of different type thermal hardware Heat loss, the particular technique means for improving the thermal efficiency.

It is come preheated-combustion-supporting using fume afterheat that the prior art, which improves one of technical way of the thermal hardware thermal efficiency, Air.In general, the preheating temperature of combustion air often improves 20 DEG C, and the thermal efficiency can improve 1%.But many equipment are as originally Raw lamp, spraying, stove, household gas range, commercial gas-fired stove and various mobile, onsite application, other special purposes Industry heating facility be difficult to collect combustion product gases, do not have installation flue gas waste heat recovery heat exchanger condition.Cigarette has been installed Other type thermal hardwares of gas heat recovery heat exchanger are then since the heat exchange area of heat exchanger is limited, flue gas heat recovery Rate is not high.

The prior art generally believes only accounts for combustion heat release shown in Fig. 1 with flame heating object basic mode Flame radiation energy The very little part of amount, therefore Fire Radiation energy utility value is little.The utility model is thought：The visible light energy that flame is sent out is true In fact be only account for combustion heat release amount a few percent hereinafter, but the carbon dioxide in heat smoke and vapor send out at high temperature largely Infrared energy.Ultraviolet light, visible ray, infrared energy and the flame periphery in luminous flame region and downstream heat smoke it is red The Fire Radiation that external radiation can add up to can reach about 20% (blue-flame) or 30% (Huang Yan) of combustion heat release amount.Therefore, it is fiery Flame radiation energy can be used for warm-up combustion-supporting air.

The core technical features of the preheating body using Fire Radiation warm-up combustion-supporting air of the utility model may be summarized to be： The preheating body has a series of heated heat-transfer area for absorbing Fire Radiation, is to help between the adjacent heated heat-transfer area of each two Air duct is fired, the thermal energy that Fire Radiation can be converted gained by the preheating body passes to and flows through and be in direct contact the heated biography The combustion air in hot face.The concrete form of the core technical features includes but not limited to：It is helical coil chip, prosposition, a high position, low Finned, the circular cone laminated of position radiation, spiral winding chip, multiple folded, porous breathable formula, vortex are finned, heat exchanging pipe Formula preheats body.

The additional technical feature or accessory of the preheating body using Fire Radiation warm-up combustion-supporting air of the utility model For cylinder (or inner cylinder, outer cylinder), taper cone barrel, circle drum barrel, Circular Plate, dome plate, round bottom plate etc..These accessories play One of the following or a variety of effects：Support, position, fix, keep out the wind, current limliting, heat-insulated, drainage, water conservancy diversion, heat conduction, heat transfer, collection Heat forms chamber wall etc..

Different form and various auxiliary of its actual conditions using core technical features should be regarded for different thermal hardwares Component and combinations thereof forms appropriate preheating body form.1 helical coil chip of above example preheats body should for the utility model For there is the specific of the burning heating equipment of sufficiently large installation space (such as Bunsen burner, blowtorch, torch) around burner head Embodiment.The finned preheating body of 2 prosposition of embodiment radiation is narrow applied to burner head surrounding space for the utility model Burning heating equipment (such as on household gas range use round bottom frying pan) specific embodiment.The high-order radiation wing of embodiment 3 Chip preheating body is the specific embodiment when using pan on household gas range.4 circular cone laminated of embodiment, spiral winding Chip, multiple folded preheating body are specific embodiment when household gas range still retains first wife's pan bracket.5 low level of embodiment It radiates finned preheating body and is applied to have sizable installation space and tool around and under burner head for the utility model The gravity-flow ventilation burning heating equipment of standby installation exhaust tube or chimney condition (such as commercial Chinese dish cooking oven, large stove, soup stove) Specific embodiment.6 porous breathable formula of embodiment preheating body is applied to force ventilated civilian combustion apparatus for the utility model The specific embodiment of (such as commercial air blowing gas range, oil range) and industrial combustion equipment (such as blowing-type industrial furnace).Implement The finned preheating body of 7 vortex of example and 8 heat exchanging pipe formula of embodiment preheating body are the utility model in force ventilated civilian burning Equipment (such as commercial air blowing gas range, oil range) and industrial combustion equipment (such as radiant tube heater, blowing-type industrial furnace) into The specific embodiment of row dispersed combustion.

There are many product forms for the utility model.For example, the finned preheating body 3 of high position radiation in Fig. 7 can be used as one kind Preheating body product (is made of) cylinder 32, elongated radiation fin 311, short radiation fin 312, Circular Plate 35；High position radiation wing Chip preheating body 3 can also be combined into a kind of energy saving pot product with pan and (be put by cylinder 32, elongated radiation fin 311, short It penetrates fin 312, Circular Plate 35 and pan to form, is fixed or detachable connection between Circular Plate 35 and pan)；It is high-order A kind of energy-saving gas cooker product can also be become (by cylinder 32, elongated radiation fin with range combined gas by radiating finned preheating body 3 311st, short radiation fin 312, Circular Plate 35 and gas-cooker are formed).It is any comprising the utility model core technical features Thermal hardware is belonged within the protection domain of the utility model claims, the thermal hardware refer to burning heating equipment, Heat energy utilization equipment and utensil.

Above example is intended merely to clearly demonstrate the utility model example, and is not to the utility model The restriction of embodiment.The burning heating equipment wide variety that people use, fuel type, burner form, device structure, Purposes and use condition difference are larger.This specification can not possibly provide the specific of the utility model for each concrete condition one by one Embodiment, does not need to be also impossible to the embodiment all to the utility model herein to be exhaustive.

For those of ordinary skill in the art, it can be done as the case may be on the basis of above-described embodiment Go out other various forms of variations or variation.These variations that can be made as the case may be or change are for fields It is obvious for those of ordinary skill.Any modification made within the spirit and principles of the present invention, letter Change, replacement, addition, combination, modification, equivalent replacement and improvement etc., should be included in the protection model of the utility model claims Within enclosing.

Claims

1. utilize the preheating body of Fire Radiation warm-up combustion-supporting air, it is characterised in that：The preheating body, which has, absorbs Fire Radiation A series of heated heat-transfer area, be combustion air channel between the adjacent heated heat-transfer area of each two, the preheating body The thermal energy that Fire Radiation can be converted to gained passes to and flows through and be in direct contact the combustion air of the heated heat-transfer area.

2. the preheating body according to claim 1 using Fire Radiation warm-up combustion-supporting air, it is characterised in that：The preheating The structure type of body is set as the preheating body and black body effect is presented for preheating the Fire Radiation of body described in directive.

3. the preheating body according to claim 1 using Fire Radiation warm-up combustion-supporting air, it is characterised in that：The preheating The structure type of body, which is set as the preheating body and its hot gas of inside, can generate stack effect.

4. the preheating body according to claim 1 using Fire Radiation warm-up combustion-supporting air, it is characterised in that：The preheating When the gross area of a series of heated heat-transfer area of absorption Fire Radiation that body has is more than or equal to rated power outside flame 30 times of surface area.

5. the preheating body according to claim 1 using Fire Radiation warm-up combustion-supporting air, it is characterised in that：The preheating Body is made of several sheet metals, and the surface of the sheet metal is heated heat-transfer area, and the sheet metal is arranged as each two Being formed between adjacent heated heat-transfer area can be as the narrow slit gap of combustion air channel, and the heated heat transfer that each two is adjacent The aperture position in narrow slit gap and direction allow Fire Radiation to inject inside narrow slit gap and occur towards flame between face Black body effect.

6. the preheating body according to claim 5 using Fire Radiation warm-up combustion-supporting air, it is characterised in that：The preheating Body is the finned preheating body of prosposition radiation, the finned preheating body of high-order radiation or low level radiate finned preheating body；

The finned preheating body of prosposition radiation includes a series of radial fin, cylinder, the radial fin metal Thin slice makes, and the radial fin is radially aligned in the cylinder centered on the central axes of the cylinder Portion, narrow slit gap is combustion air channel between the radial fin, and the radial fin is from the cylinder central axes Proximal end forms diameter 1 to 4cm middle through-hole bigger than the burner head outer diameter of the preheating body application, the middle through-hole Top edge is concordant topmost with burner head, and the lower part and top of the cylinder offer air intlet and smoke outlet respectively；

The finned preheating body of high-order radiation includes a series of radial fin, cylinder and Circular Plate, the radial wing Piece makes of sheet metal, and the Circular Plate is mounted on the top of the cylinder, and the Circular Plate has middle part trepanning, described to put It is radially aligned in the inside of the cylinder, the radial fin centered on the central axes of the cylinder to penetrate shape fin Between narrow slit gap be combustion air channel, the cylinder bottom end to it is described preheating body application burner head height portion Position proximal end of the radial fin from the cylinder central axes forms diameter bigger than burner head outer diameter 1 to the middle part of 4cm Through-hole, the top edge of the middle through-hole is concordant topmost with burner head, and 2 to 3cm to described more than burner head Proximal end of the radial fin described in the position of Circular Plate from the cylinder central axes collectively form one for accommodate heated The cylindrical cavity of object, the high position are radiated most upper higher than burner head at the half height of finned preheating body End；

The finned preheating body of low level radiation includes a series of radial fin, taper cone barrel and circle drum barrel, described radial Fin makes of sheet metal, and the radial fin is radially aligned in institute centered on the central axes of the taper cone barrel The inside of taper cone barrel is stated, narrow slit gap is combustion air channel between the radial fin, and the radial fin is from described The proximal end of taper cone barrel central axes forms the middle through-hole being adapted with the burner head outer diameter of the preheating body application, in described Less than burner head topmost, the side wall of the round drum barrel offers smoke outlet, the smoke outlet warp to the top edge of portion's through-hole Flue leads to smoke exhaust barrel, and the flue is equipped with valve, is less than at the half height of the low level radiation fin preheating body Burner head is topmost.

7. the preheating body according to claim 5 using Fire Radiation warm-up combustion-supporting air, it is characterised in that：The preheating Body preheats body for helical coil chip, circular cone laminated preheats body, spiral winding chip preheats body or multiple folded preheating body；

The helical coil chip preheating body includes spiral roll film portion and cylinder, and helical form is pressed with sheet metal by the spiral roll film portion Ground rolls into, and the narrow slit gap between spiral roll film is combustion air channel, and the cylinder connects the spiral roll film portion upper end Outside, the spiral roll film portion has the middle through-hole that the burner head outer diameter with the preheating body application is adapted, described The top edge of middle through-hole is less than burner head topmost；

The circular cone laminated preheating body includes several metal thin-wall taper cone barrels, and the taper cone barrel has middle through-hole, described The diameter of middle through-hole is bigger by 1 to 4cm than the burner head outer diameter of the preheating body application, and the taper cone barrel is successively from top to bottom Nestable, the narrow slit gap of circular cone mesa shape formed between the wall surface of a upper taper cone barrel and the wall surface of next taper cone barrel is Combustion air channel, supporting as a upper taper cone barrel bottom vertically downward between a upper taper cone barrel and next taper cone barrel The circular sheet metal of bending, circumferentially direction equably offers on the circular sheet metal bent vertically downward Combustion air inlet；

The spiral winding chip preheating body is more continuous around the preheating body central axes than the sheet metal for being more than 60 by length/width It spirals downwards and is turned to for helical form, narrow slit gap is combustion air channel between spiral winding piece, and the spiral winding chip is pre- Hot body has diameter 1 to 4cm middle through-hole bigger than the burner head outer diameter of the preheating body application；

The multiple folded preheating body by length/width than be more than 60 sheet metal along its length continuously, repeatedly, With it is identical along its length on spacing be folded into, the shape of continuous WWW is formed when making it from the side, has been folded The sheet metal headtotail finished becomes hollow ring shape, empty per the narrow slit between the adjacent folded foil of two panels Gap is combustion air channel, and the multiple folded preheating body has diameter than the burner head outer diameter of the preheating body application Big 1 to 4cm middle through-hole.

8. the preheating body according to claim 5 using Fire Radiation warm-up combustion-supporting air, it is characterised in that：The preheating Body is the finned preheating body of vortex, described including a series of swirl shape fin, inner cylinder, outer cylinder, dome plate and round bottom plate Swirl shape fin is arranged in the lower half inside the inner cylinder, the swirl shape wing centered on the central axes of the inner cylinder Narrow slit gap is combustion air channel between piece, and hollow sandwich is formed between the inner cylinder and outer cylinder, the outer cylinder Top and bottom are closed respectively by the dome plate and round bottom plate, and the inner cylinder is fixedly mounted below the dome plate, institute Stating has gap between the lower end of inner cylinder and the round bottom plate, outer cylinder upper end wall surface tangentially offers air intlet, The inner cylinder wall surface tangentially offers fuel inlet, and the dome plate is equipped with smoke outlet.

9. the preheating body according to claim 1 using Fire Radiation warm-up combustion-supporting air, it is characterised in that：The preheating Body preheats body for porous breathable formula or heat exchanging pipe formula preheats body；

Porous breathable formula preheating body include circle drum barrel and on the inside of the round drum barrel, shape phase with the round drum barrel The porous breathable body of adaptation, forms hollow sandwich between the round drum barrel and porous breathable body, the porous breathable body is porous Permeability metal body, metallic fiber ventilation body, foamed ceramics ventilation body or honeycomb ceramic body ventilation body, in the porous breathable body Air hole for combustion air channel, the round drum barrel wall surface tangentially offers air intlet, the round drum barrel bottom installation Burner has annular smoke outlet around burner；

The heat exchanging pipe formula preheating body includes a series of heat exchanging pipe, the first cylinder, the second cylinder, third cylinder, the 4th Cylinder, dome plate and round bottom plate, the first cylinder, the second cylinder, third cylinder, the 4th cylinder diameter be sequentially increased, third circle The top and bottom of cylinder and the 4th cylinder are closed respectively by the dome plate and round bottom plate, shape between third cylinder and the 4th cylinder Into hollow sandwich, the first cylinder is fixedly mounted on dome plate lower surface, there is gap between the lower end of the first cylinder and round bottom plate, the Two cylinders are fixedly mounted on round bottom plate upper surface, there is gap between the upper end of the second cylinder and dome plate, and the heat exchanging pipe is worn Cross the first cylinder and the second cylinder, the heat exchanging pipe connect combustion zone in the first cylinder and third cylinder and the 4th cylinder it Between hollow sandwich, be combustion air channel in the pipe of the heat exchanging pipe, the heat exchanging pipe is that circumferentially direction is equably Be arranged in it is within third cylinder and at a certain angle with third cylinder radial shape, offered in the middle part of the round bottom plate fuel into Mouthful, the round bottom plate offers smoke outlet between the second cylinder and third cylinder on position.

10. the thermal hardware with the preheating body using Fire Radiation warm-up combustion-supporting air, it is characterised in that：Including any of the above The preheating body using Fire Radiation warm-up combustion-supporting air described in.