CN106352326A - Methane gas combustion device and methane gas fireplace - Google Patents

Abstract

The invention relates to a methane gas combustion device and a methane gas fireplace. The methane gas combustion device comprises a combustor and a guide device. The combustor is provided with a methane gas outlet; the guide device is combined with the combustor and comprises a partition and two baffles; the partition is provided with an opening; the baffles are located at the opening; the top edges of the baffles are higher than the upper surface of the partition; the combustor is located below the partition; the methane gas outlet is located in a position corresponds to a position between the two baffles; the guide device is further provided with at least one first gas inlet; the first gas inlets are located below the partition and communicated with a space between the two baffles. The methane gas fireplace comprises a fireplace body, a light-transmission shield and the methane gas combustion device. The partition divides the fireplace body into a gas chamber and a combustion chamber, and the combustor is located in the gas chamber. Therefore, the flame visibility and the combustion efficiency are improved.

Description

Gas combustion device and gas fireplace

Technical field

The present invention is and gas combustion device-dependent；Particularly relate to a kind of high-effect dicoration flame watt This burner and gas fireplace.

Background technology

Existing straight-line (direct-vented) gas fireplace adopts balance of nature intake and exhaust mode, row QI KOU and air inlet connect combustor with horizontal or vertical direction, and are communicated to outdoor, within doors air with Combustor is completely isolated, and therefore in line (direct-vented) gas fireplace is safest wall at present Stove.Because air vent and air inlet are all communicated to outdoor, for construction with easy for installation, exhaustor with enter Trachea generally adopts the design of tube-in-tube, and it is same that vent line has an outer tube air inlet pipe encirclement one smaller radial As exhaustor, outer tube connects the inlet channel on rear side of body of heater to intracardiac bank of tubes simultaneously；Inlet channel can connect Pass to outside, via single or multiple air inlet, fresh air is imported burning interior.Connect combustor Inner tube is in order to discharge body of heater (firebox) outward by the high-temp waste gas after burning.Burner is arranged at body of heater Interior combustor, due to producing high temperature during burner combustion, making burning, indoor when gases are heated, they expand produces Buoyancy upwards, flows through exhaustor by stack effect (stack effect) and discharges combustor, simultaneously in envelope The burning interior formation negative pressure closed, outside fresh air is sucked combustor, to provide continuous burning Required oxygen.Wherein, in order to allow gas fireplace to assume good flame visual effect and to provide radiation Heat, is provided with a clear glass shielding in the front side of body of heater, user can be shielded by glass and sees Reward and the light of combustion flame experiencing furnace interior and heat.In addition to front glass side, body of heater is spaced a spacing In order to completely cut off body of heater, high temperature is produced to building from then arranging fireplace shell, enable shell near building Exterior wall, reduces and installs required space.Between high-temperature furnace body and fireplace shell, interval can be entered with room air Row heat exchange, control valve and control module are then installed, sometimes in the space of body of heater bottom side and fireplace shell Fan can be installed and strengthen convection current to accelerate the heat exchange between body of heater and room air, to improve the thermal efficiency simultaneously Accelerate indoor temperature lifting.Above-mentioned fireplace structure can be joined and made United States Patent (USP) 4793332 “directed-vented gas fireplace”.

However, good in line gas fireplace has to comply with multinomial design requirement and specification.With burning relatively Related main demand and specification include: (1) high efficiency: because intake and exhaust are all arranged at outdoor, heat Service efficiency must improve to meet relevant laws and regulations, if the delivery temperature of straight gas-removing fireplace and flow Too high all can make fireplace efficiency reduce.(2) close to burning completely: the hundred of percentage are burnt completely in reality On can not possibly reach, but the discharge closer to burn completely produced carbon monoxide harmful substance and black smoke Amount can be lower.Typically complete burning degree is not completely to produce the absolute value of carbon monoxide as weighing apparatus Amount, but with respect to burning scale as measurement, amount of carbon dioxide can represent burning scale.So combustion Burn cleanliness factor generally with co/co₂Relative ratio as measurement.If usual co/co₂Ratio is less than 0.004 represents burning relatively completely, and this ratio is fewer to produce fewer black smoke amount.(3) flame kenel with Color: assume vast scale crocus flame to accord with and to fill because fireplace visually must imitate combustion of wood The aesthetic demands of decorations flame, flame assumes colourless or blueness and cannot meet the vision of ornamental flame to be needed Ask.(4) must adapt to various combustion gas: because people's livelihood fireplace must be applied to many areas, with a Fireplace generally has to be applied to natural gas (ng) and barreled gas (lp)；Level is real with rectilinear in line grade Border behaviour in service.And the combustion gas of each department is variant, therefore fireplace design must reach the demand Outward moreover it is possible to adapt to the combustion gas of various composition.(5) adapt to scale of burning on a large scale: for increasing application Scope, same fireplace design must adapt to scale of burning on a large scale, and meets the demand.

But the demand often contradicts each other, for example, improving the thermal efficiency makes delivery temperature and flow Reduce and also easily cause deficiency of air simultaneously, cause incomplete combustion and produce excessive carbon monoxide With black smoke.Anti-, when excessively burning completely, easily cause colourless or blue flame it is impossible to present again Meet the crocus of ornamental flame visual demand.And list will adapt to each department not with a fireplace simultaneously Same natural gas (ng) and barreled gas (lp) its fuel performance just have very big difference.Such as natural gas ratio Barreled gas need less oxygen-supplying amount, reach the good situation of combustion of natural gas in same fireplace, if But it is possible to cause incomplete combustion using barreled gas.

In order to solve these needs of problems above-mentioned simultaneously, there is suitable degree of difficulty, generally non-single handss Duan Suoneng reaches, and this is because, in fireplace combustor, during burning, produced burning waste gas can be in stove Produce high thermal current and the air vent flowing towards body of heater top in vivo.Because air vent sectional area is remote Less than the sectional area of top of combustion chamber, therefore only it is provided that a fraction of high temperature gas flow passes through, Most of heated gas rising can be subject to the wall at body of heater top to stop and be formed down backflow , and be stranded in accumulation heat in body of heater, then will by the heat exchange outside body of heater (circulation) Heat stays within.The service efficiency of the energy can be determined in the number of the heat of body of heater accumulation.If high temperature Gas is discharged very much body of heater soon and can be made efficiency step-down, if anti-too slow discharge can hinder leading of extraneous air Enter, be unfavorable for burning completely.

Additionally, when extraneous air imports furnace interior from air inlet, if burner air supply opening is from flame When farther out, easily interfere with the flowing of high temperature gas flow produced by burning waste gas, form flow-disturbing, And mix with burning waste gas phase.The smooth discharge of burning waste gas not only can be affected, also can reduce burning fire The oxygen concentration of flame surrounding air is it is impossible to effective control supplies the oxygen supply needed for burner burns completely Amount.Particularly when the scale of burning increases, because high temperature can strengthen indoor convection current of burning, make air inlet Mixed combustion offgases degree is aggravated it is easier to cause imperfect combustion.

Prior art such as United States Patent (USP) 4793332 " directed-vented gas fireplace " Disclose a efficient through type gas fireplace design, reached by optimizing combustion gas and air mixing ratio Low CO (co) and nitride (no_x) discharge capacity, delivery temperature can be reduced with speed to improve simultaneously The thermal efficiency.

United States Patent (USP) 5016609 " direct vented multi glass side fireplace " Disclose a efficient through type gas fireplace design increasing by two side glass, using diversion mode Strengthening discharges into throughput, but body of heater top adds the long-pending heat exchange structure of enlarged surface to increase at the same time The thermal efficiency.

United States Patent (USP) 5452708 " universal horizontal-vertical (h-v) Direct-vented gas heating unit " discloses a height being common to horizontal and vertical ventilation Efficiency through type gas fireplace designs.For controlling air rate, setting passage makes multiple air inlet with deflector Mouth is concentrated simultaneously close and is located at combustion tube lower position, to improve the confession oxygen concentration of combustion front, on body of heater Baffle plate is set before square air vent, with the path controlling high-temp waste gas to discharge.

United States Patent (USP) 5947113 " direct vent gas appliance with vertical and Horizontal venting " discloses the high efficiency through type gas wall of the horizontal and vertical ventilation of a energy Stove designs, and setting passage is not joined directly together with high-temperature furnace body, arranges baffle plate before air vent above body of heater, To control high-temp waste gas flow path.

United States Patent (USP) 6432926 " direct vent fireplace with baffle, Directional exhaust and vent air column " discloses a through type gas fireplace Design, increases shelves stream plate before air vent in body of heater and improves heating surface area, and arrange air flue and lead air Enter below body of heater, the obstruction due to reducing the heat exchange of body of heater surface can improve the thermal efficiency.

Although these are in the indoor various forms of dividing plate of addition of burning and deflector or inlet channel design Different, but have several common points, on the one hand it is the exhaust pathway controlling high-temp waste gas, make high-temp waste gas Flow path lengthen or increase top of combustion chamber high temperature at heat exchange area with increase heat exchange effect Rate, but can average reduction flow velocity, make high-temp waste gas will not the indoor generation excessive turbulence of burning with Flow back and lead to the degree of air inlet mixed combustion offgases to be aggravated.On the other hand it is then by the air inlet of combustor The setting of mouth, the position furthering and being distributed in the rough lower section of burner is attached to improve burner flame The oxygen content in nearly flow field, promotes to burn completely.Wherein or reduce inlet channel directly contact high-temperature furnace body Area, make intake air temperature reduce, increase intake efficiency.

Although prior art and design setting all can reach certain benefit, for flame kenel, Relatively lack and integrate burner, more precise control is carried out to supersonic combustor and air inlet, therefore right When demand that should be related and specification, the scope of application is more restricted.

However, inquiring into existing elongated gas combustion device 1 structure as shown in Figures 1 and 2, its For elongated body 10, body 10 is straight line or bending, body 10 along its long axially offer many Individual venthole 102, supplies gas to inject by one end of body 10, by once being mixed gas.Injected Gas through once mixing gas is exported by venthole 102.Existing gas combustion device 1 is in burning gas When, do effectively from the flame that described venthole 102 produces due to lacking the auxiliary air required to burning Control, therefore, the height of flame cannot effectively improve.If the visibility of flame to be improved and height And, the supply increasing gas also cannot equal proportion or the scale being effectively increased flame visibility.

This is because venthole 102 increases to improve flame height after gas supply amount, flow velocity and The increase of heat all can increase the generation of venthole 102 surrounding flow field sinuous flow.Sinuous flow is one kind of fluid Flow regime.When flow velocity is less, fluid layering flows, and molecular motion direction is identical with flow direction, Streamline does not mutually mix, referred to as laminar flow；When flow velocity increase to a certain extent when, molecule can produce perpendicular to With the motion of flow direction, cause in flow field, there is many irregular little whirlpools, referred to as sinuous flow.Sinuous flow Can strengthen in heat transfer or be sufficiently mixed.

Because laminar flow is conducive to producing the higher saffron diffusion flame of visibility, and sinuous flow can be strengthened The mixing of fuel gas and surrounding air during burning.But burning must have certain condition and reaction speed Degree, is excessively mixed into combustion air and easily causes colourless or blue flame, produce nitride (no_x) or local The situation that flow velocity is too high and is unfavorable for burning completely.These situations all can make flame visibility reduce and with Discontinuous mode is beated, and therefore flame visibility will not be because increasing the supply of gas and equal proportion or have Effect ground increases the visibility of saffron diffusion flame and visual scale.

When being applied to gas fireplace, airtight body of heater produces the disturbance that sinuous flow can strengthen internal gas flow With convection current, when particularly increasing flame scale, easily it is subject to by the extraneous high air of oxygen concentration that imports Sinuous flow disturbs, and is therefore difficult to control favourable burning condition.Therefore existing gas combustion device 1 Design do not attain perfect, still to have much room for improvement place yet.

Content of the invention

In view of this, the purpose of the present invention is used for providing a kind of gas combustion device and gas fireplace, In the case of not increasing gas supply amount, visual crocus flame visibility and scale height can be increased.

Edge to reach above-mentioned purpose, gas combustion device provided by the present invention, comprise a burner and one Guiding device, wherein, in order to the gas that burns, this burner is in elongated and have one watt to this burner This outlet is axially arranged along length；This guiding device is combined with this burner, and it is horizontal that this guiding device includes one To the dividing plate of the setting baffle plate facing with two, this dividing plate has an elongated opening, and respectively this baffle plate is In elongated, respectively this baffle plate is located at this opening and the position of an each apical margin of this baffle plate is higher than this dividing plate One upper surface；This burner is located at below this dividing plate and this gas export is located to should be between two baffle plates Position；This guiding device separately has at least one first air intake, and this first air intake is located at this dividing plate Lower section and connect the space between this two baffle plate.

The present invention separately provides a kind of gas fireplace, comprises a body of heater, a printing opacity shielding, a guiding device With a burner, wherein this body of heater includes an air inlet, an air vent and a window, and this window is situated between Between this air inlet and this air vent；The shielding of this printing opacity is covered on this window；This guiding device sets It is placed in this body of heater, this guiding device includes the dividing plate baffle plate facing with two, this dividing plate is by this stove It is separated out an air chamber above and a underlying combustor in vivo, this air chamber connects this air inlet Mouthful, this combustor corresponds to this printing opacity and shields, and connects this air vent；It is elongated that this dividing plate has one This air chamber of open communication and this combustor；Respectively this baffle plate is in elongated, and respectively this baffle plate is located at this opening The position of one apical margin of place and respectively this baffle plate is higher than a upper surface of this dividing plate；This guiding device separately has At least one first air intake, this first air intake is located at below this dividing plate and connects this opening；This burning Device in order to the gas that burns, this burner be in elongated and have one gas export along length axially arranged；Should Burner is located at below this dividing plate and this gas export is located to should position between two baffle plates.

Effect of the invention is that, gas combustion device pass through this guiding device can by air-flow by this two Up guide between baffle plate, in the case of not increasing gas supply amount, increase visual crocus flame Visibility and flame height.Discharge chamber is separated in the body of heater of the dividing plate gas fireplace of this gas combustion device With combustor, make fresh air under dividing plate can be directly directed to the combustion between two baffle plates without high-temp waste gas mixing In the range of burning, air high for oxygen concentration can be concentrated and effectively be directed to combustion range, can significantly carry High burning efficiency.

Brief description

For the present invention can be illustrated more clearly that, below in conjunction with preferred embodiment and coordinate accompanying drawing describe in detail As rear, wherein:

Fig. 1 is existing gas combustion device axonometric chart.

Fig. 2 is existing gas combustion device sectional view.

Fig. 3 is the gas combustion device axonometric chart of a preferred embodiment of the present invention.

Fig. 4 is the gas combustion device exploded perspective view of above-mentioned preferred embodiment.

Fig. 5 is the gas combustion device partial enlarged drawing of above-mentioned preferred embodiment.

Fig. 6 is the gas combustion device sectional view of above-mentioned preferred embodiment.

Fig. 7 is the gas fireplace axonometric chart of above-mentioned preferred embodiment.

Fig. 8 is the gas fireplace sectional view of above-mentioned preferred embodiment.

Fig. 9 is the partial enlarged drawing of Fig. 8.

Figure 10 is the air exhaust auxiliary device axonometric chart of above-mentioned preferred embodiment.

Figure 11 is a schematic diagram, discloses the gas fireplace air current flow of above-mentioned preferred embodiment.

Figure 12 is a schematic diagram, discloses the gas fireplace air current flow of above-mentioned preferred embodiment.

Specific embodiment

Please join shown in Fig. 3 to Fig. 6, be the gas combustion device 2 of a preferred embodiment of the present invention, bag Containing a burner 20 and a guiding device 26.

This burner 20 is in elongated, and including a shell 22 and a body 24, this shell 22 has is Involuted by two elongated half-shell, this two half-shell has individually a riser 222, this two riser 222 It is separated by a spacing, form a gas export 224 upward between the apical margin of this two riser 222, This gas export 224 is axially extending along the length of this shell 22.This body 24 is located at this shell 22 In, and jointly coat for this two half-shell.One end of this body 24 is for gas injection, and this body 24 have multiple ventholes 242, and described venthole 242 is axially arranged along the length of this body 24, Described venthole 242 is to should gas export 224.Inject this body 24 gas pass through described go out Pore 242 and up scurry out from this gas export 224.

This guiding device 26 include the dividing plate 28 of a horizontally set, a fixed mount 30, multiple first points Partition 36, multiple second shim 38 and two baffle plates 40.This dividing plate 28 have a upper surface 282, A lower surface 284 and the opening 286 running through this upper and lower surface 282,284, this opening 286 is to be in Elongated and it is long axially axially in parallel with the length of this burner 20.This fixed mount 30 is arranged at this dividing plate 28 lower surface 284, including a fixed plate 32 and a base 34, this fixed plate 32 has one and runs through Its upper and lower opening 322, the peripheral part of the opposite sides of this opening 322 has individually multiple solid Determine groove 324, and the fixing groove 324 of every side is to be spaced with reference to axial d along one, wherein, This reference axial direction d is parallel to the long axial direction of this burner 20.This base 34 is located at this fixed plate 32 Lower section and have an elongated hole 342, this elongated hole 342 is along this reference axial direction d extension.This burner 20 Riser 222 be by below this base 34 from this elongated hole 342 penetrate in this base 34 with this base 34 combinations.

Described first, second shim 36,36 is in this base 34.Described first shim 36 lateral margin is in the described fixing groove 324 insert this opening 322 wherein side, makes described the One shim 36 is set in distance along this reference axial direction d and is located at the gas export of this burner 20 224 side.One lateral margin of described second shim 38 is the institute inserting this opening 322 opposite side State that to be located at this gas export 224 in fixing groove 324 another with respect to described first shim 36 Side.Respectively this first shim 36 has one first grooving 362；Respectively this second shim 38 has One second grooving 382.

This two baffle plate 40 is made by transparent material, and the present embodiment is strengthens glass.This two baffle plate 40 is in elongated and it is long axially axially in parallel with the length of this burner 20, and this two baffle plate 40 passes through should The opening 286 of dividing plate 28, this baffle plate 40 is erectly inserted in described first grooving 362, separately One this baffle plate 40 is erectly inserted in described second grooving 382, make this two baffle plate 40 facing and This gas export 224 is located between this two baffle plate 40.Respectively this baffle plate 40 has an apical margin 402, respectively The position of this apical margin 402 is higher than the upper surface of this dividing plate 28.Thus, in the phase of this dividing plate 28 lower section Form one first air intake 364 between adjacent two this first shims 36；This second separation two neighboring Form one second air intake 384 between piece 38.Described first air intake 364 and described second air intake 384 is the space being respectively communicated between this two baffle plate 40.In practice, also can design by two baffle plates even It is connected to opening 286 peripheral region of this dividing plate 28.

Additionally, the both sides of this gas export 224 are more provided with two flaps 42, this two flap 42 is edge This reference axial direction d arranges and is located at respectively between this gas export 224 and this two baffle plate 40, respectively should Flap 42 is to gradually decrease from lower to upper with respectively the distance between this baffle plate 40.Respectively this flap 42 has There are multiple perforations 422, described perforation 422 is along this reference axial direction d setting, and described perforation 422 Position be less than this gas export 224 position.

Please coordinate Fig. 6, gas is once mixed gas with air in the body 24 of this burner 20, Then start to burn in the output of this gas export 224.During burning, this two baffle plate 40 it Between formed hemi-closure space in, flame makes air heats rise, and the stack effect being formed, This two baffle plate 40 upper edge forms negative pressure.By this negative pressure, make air constantly by under this dividing plate 28 To be introduced to this gas export 224 attached for described first air intake 364 of side and described second air intake 384 Closely, the air of a part is introduced between this two flap 42 mix with gas by described perforation 422, For combustion-supporting.The position of described perforation 422 is less than the position of this gas export 224, can avoid passing through The gas of this gas export 224 is pushed and affects the height of flame by the air of described perforation 422.

The air of another part is mixed with gas in the position higher than two flaps 42, and upwards with little angle Degree guiding respectively this baffle plate 40.Air-flow through guiding makes air-flow adsorb in respectively this baffle plate due to Coanda effect 40 surfaces, and non-immediate blow to flame.After guiding air-flow is heated, cooperation Coanda effect can make auxiliary air Stream is attached to baffle plate 40 and continues longer stream away from and then maintaining the flow field relatively stablizing ascendant trend.Greatly Width extends the scope of flame laminar flow, slows down the generation of sinuous flow.

So-called Coanda effect is because the viscosity of fluid makes to produce surface between the body surface flowing through Frictional force, makes the air-flow velocity flowing through near body surface slow down, as long as the object table that air-flow is flowed through The Curvature varying in face is not too big, and slowing down of flow velocity can lead to importing air can be attracted to body surface Upper flowing.But once flow velocity along flow through the barometric gradient vanishing of body surface or negative when, fluid is not It is attracted to just can produce during flowing on body surface and separate and supervene vortex again.

Thus, the flame of script obtains stable and uniform extension by the guiding of air curtain.Identical Burning scale under, flame visibility visually can be greatly improved in front when observing.From side Observation can be observed flame and is compressed into flat by air curtain.Simultaneously because baffle plate 40 height be not necessary to too high I.e. effective.

Because described first, second air intake 364,384 is located at below this dividing plate, therefore, will not Affect the flowing of the air-flow of this dividing plate 28 top, make this dividing plate 28 top air-flow can stably to Upper flowing.User passes through transparent baffle plate 40 it may be clearly seen that flame.Again because under dividing plate 28 Fresh air can be directly directed in the combustion range between two this two baffle plates 40 without high-temp waste gas mixing, Air high for oxygen concentration can be concentrated and effectively be directed to combustion range, burning effect can be greatly improved Rate.

Further, since described first shim 36 of gas combustion device 2 and described second shim The setting of 38 formed multiple turns passages, that can effectively reduce combustion zone enters gas disturbance, and controls Intake uniformity, effectively prevents from being tempered, improves the heat-sinking capability of gas combustion device 2 simultaneously, reduce Gas combustion device 2 temperature, to improve safety.

The gas combustion device 2 of the present invention in the case of not increasing gas supply amount, compared to existing Gas combustion device 1, the height of flame can be increased, also reach save gas effect.Additionally, Because air-flow is that the state assuming laminar flow up flows, therefore, it can allow the profile of flame remain stable, More the steam that flame produces up can be guided, reduce and accumulate on this gas combustion device 2 all around Heat.In practice, if for flame height less demanding when, also can be not provided with this two flap 42, Equally can reach and make flame height be higher than flame height produced by existing gas combustion device 1.

Fig. 7 to Figure 12 show the gas fireplace 100 of the present embodiment, and this gas fireplace is except including Outside aforementioned gas combustion device 2, also comprise a body of heater 50, a printing opacity shielding 52 auxiliary with aerofluxuss Help device 54, wherein, for convenience of description, body of heater 50 has in level under three-dimensional coordinate system Square upward direction is different and the axial y of the first axial x and second that be separated by an angle, and in Vertical Square The axial z of the 3rd upwards.On the 3rd axial z, body of heater 50 has a relative top 501 With a bottom 502, and an air vent 501a is provided with top 501, and in bottom 502 It is provided with body of heater 50 an air inlet 502a, this air inlet above or at the position of bottom 502 The mouth opening direction of 502a and the opening direction of air vent 501a can be identical or different.In this reality Apply in example, be with the opening direction of air inlet 502a be the direction extending along the second axial y and The opening direction of air vent 501a be the direction extending along the 3rd axial z as illustration, but It is not limited thereto.

Additionally, body of heater 50 also includes a backboard 503 and two relative side plates 504, it is separately positioned on Between top 501 and bottom 502.Two side plates 504 are arranged at backboard 503 respectively along the first axial x Relatively two sides, and and backboard 503 around the inner space 505 forming body of heater 50.Wherein, It is additionally provided with away from the side (rear side of body of heater 50) of inner space 505 in backboard 503 in body of heater 50 One inlet channel 508, one end connection air inlet 502a of this inlet channel 508, other end connection one The outer tube t1 of gas piping t, and inner tube t2 of gas piping t is connection air vent 501a.And The side (front side of body of heater 50) corresponding to backboard 503 on body of heater 50 is provided with a window 509, This window 509 is between air inlet 502a and air vent 501a, and is communicated in inner space 505.

This printing opacity shielding 52 is arranged at the side being provided with window 509 on body of heater 50, and is covered in On window 509.Printing opacity shielding 52 includes body 522 and housing 524, and housing 524 is arranged at body 522 outer rims, and be incorporated on body of heater 50 adjacent to window 509 all around, make body 522 Just close window 509 or be at least covered in the side close to bottom 502 on window 509, User can watch the internally fired flame of body of heater 50 by body 522.Therefore, body 522 Mainly it is made up of material high temperature resistant and that there is light transmitting property, such as glass and crystal etc..Additionally, Printing opacity shielding 52 can also be the sheet metal being inlaid with light transmissive material in engraved structure, and simultaneously It is not limited to be made up of light transmissive material completely.

This gas combustion device 2 is arranged at the position close to bottom 502 in body of heater 50, and this dividing plate 28 are connected on the internal face of body of heater 50 along the first axial x and second axial direction y, and by inside this Space 505 is divided into the air chamber 506 positioned at this dividing plate 28 lower section and is located at this dividing plate 28 top One combustor 507, this air chamber 506 and this combustor 507 phase by the opening 286 of this dividing plate 28 Connection.This air chamber 506 connects this air inlet 502a, and this combustor 507 corresponds to this printing opacity and shields 52 body 522, and it is communicated in this air vent 501a.Baffle plate due to gas combustion device 2 40 tool water conservancy diversion and the effect maintaining the flow field relatively stablizing ascendant trend, the sinuous flow of combustor 507 lower half Degree can be greatly decreased, and high temperature can be made up relatively to concentrate above body of heater 50, improve body of heater 50 temperature difference. If desired further improve the thermal efficiency, can install at body of heater 50 highest temperature and put heat exchanging fin, more hold Easily improve the thermal efficiency.

This air exhaust auxiliary device 54 is arranged on the wall in the combustor 507 of body of heater 50, and will Combustor 507 is divided into an one first space 507a and second space 507b, the wherein first space 507a Between the air vent 501a of air exhaust auxiliary device 54 and body of heater 50, and it is communicated in air vent 501a, and second space 507b is between air exhaust auxiliary device 54 and dividing plate 28, corresponding to this The body 522 of printing opacity shielding 52.Air exhaust auxiliary device 70 has an exhaust passage 542, this aerofluxus Passage 542 connects the first space 507a and second space 507b, and the width of exhaust passage 542 is certainly Second space 507b is tapered towards the direction of the first space 507a, and in air vent 501a relatively Side there is an outlet 544.

In the present embodiment, this air exhaust auxiliary device 54 includes the first guide plate 56 being mutually inclined setting With the second guide plate 58.One end of first guide plate 56 and the second guide plate 58 is connected to burning On two walls relatively in room 507, the direction that the other end is respectively facing air vent 501a is mutually inclined, And it is separated by a preset distance, and constitute width between the first guide plate 56 and the second guide plate 58 From second space 507b towards the tapered exhaust passage 542 of the first space 507a.Wherein, first lead One end that corbel back slab 56 tilts towards air vent 501a has one first apical margin 562, the second guide plate 58 The one end tilting towards air vent 501a has one second apical margin 582, the first apical margin 562 and the second top Edge 582 is parallel to each other, and the horizontal level of the first apical margin 562 is higher than the horizontal position of the second apical margin 582 Put.The outlet 544 of exhaust passage 542 is formed between the first apical margin 562 and the second apical margin 582, And export 544 length and extend axially along the first axial x of body of heater 50, and the length extending be equal to or Length more than the gas export 224 of this burner 20.It is preferred that outlet 544 is located at this gas The surface of outlet.

Based on said structure, can be the of combustor 507 by burning waste gas produced after gas combustion Form thermal current in two space 507b, and from second space 507b towards the first space 507a stream Dynamic.When thermal current is contacted with the first guide plate 56 and second guide plate 58 of air exhaust auxiliary device 54 When, the stop of the first guide plate 56 and the second guide plate 58 can be subject to change flow direction, and from row The outlet 544 of gas passage 542 flows in the first space 507a.In the process, because aerofluxuss are led to The width in road 542 is tapered towards the first space 507a by second space 507b, makes the stream of thermal current Speed the outlet 544 of exhaust passage 542 near increase and produce low pressure suction, and then allow second space Burning waste gas in 507b are easier to be drawn in the first space 507a.

After thermal current passes through outlet 544 of exhaust passage 542, it is less than because flow velocity eases up or becomes It is bordering on the fluid drainage amount of gas piping t inner tube t2, therefore flow into the burning in the first space 507a Waste gas relatively easily can drain into outside from air vent 501a by inner tube t2 of gas piping t, So, it is to avoid burning waste gas are detained in the first space 507a.And, utilize the first guide plate 56 and second guide plate 58 be arranged obliquely mode, and the width of exhaust passage 542 is empty from second Between 507b towards the tapered architectural characteristic of the first space 507a it is also possible to avoid in the first space 507a The thermal current being inside contacted with body of heater 50 top is back to downwards in second space 507b, and contributes to dropping Cumulant in body of heater 50 for the low burning waste gas.

Air exhaust auxiliary device 54 more smoothly enters the first space 507a except allowing burning waste gas Interior, and reduce thermal current and formed outside the chance of sinuous flow in second space 507b, second can also be avoided Because the too high problem of the temperature caused by delay of burning waste gas occurs in the 507b of space.

Refer to Figure 11 and Figure 12, during thermal current is towards air vent 501a flowing, in order to Flowing in some positions that concentrate on avoiding thermal current excessive in exhaust passage 542, can also be in aerofluxus One or more flow distribution plates 60 are optionally arranged on auxiliary device 54, in order to by exhaust passage 542 Outlet 544 be separated into multiple time outlet 544a, allow thermal current can scattered from each outlet 544a flows in the first space 507a.In the present embodiment, it is to be included with air exhaust auxiliary device 54 Four flow distribution plates 60 or at least two flow distribution plates 60 as an example, but are not limited thereto.Four shuntings Plate 60 is erectly incorporated into the first apical margin 562 of the first guide plate 56, and one end of flow distribution plate 60 It is resisted against on the second apical margin 582 of the second guide plate 58, wherein two flow distribution plates 60 are spaced, and The outlet 544 of exhaust passage 542 is separated into multiple outlet 544a.

In practice, flow distribution plate 60 can vertical or inclination be connected to the first guide plate 56 and second Two flow distribution plates 60 between guide plate 58 or adjacent can be towards the air vent 501a of body of heater 50 Direction be mutually inclined setting, allow the distance between two adjacent flow distribution plates 60 from the second apical margin 582 Tapered towards the direction of the first apical margin 562, allow thermal current can be subject to two adjacent flow distribution plates 60 Guiding and accelerate flow in the first space 507a from secondary outlet 544a accordingly, and reduce heat Air-flow produces the chance of sinuous flow in second space 507b.

Further, in order to promote the dispersion effect of thermal current, can also be between two flow distribution plates 60 One spoiler 62 is set, allows and make spoiler 62 corresponding to wherein once exporting 544a, it is preferred that disturbing Stream plate 62 be arranged in multiple flow distribution plates 60 near centre position two flow distribution plates 60 between.Flow-disturbing Plate 62 is located at below this air vent 501a and is incorporated into the second guide plate 58 along this first axial x Second apical margin 582, and parallel to the second apical margin 582, one end of wherein spoiler 62 is connected to Two apical margins 582, the direction of the first apical margin 562 towards the first guide plate 56 for the other end extends, and Partial masking its corresponding time outlet 544a, allows the bore of secondary outlet 544a accordingly to reduce.

Therefore, when thermal current flows to secondary outlet 544a corresponding with spoiler 62, its flow velocity meeting The impact such as reduced by the stop of spoiler 62 and the bore of secondary outlet 544a and die-off, and past The direction at two ends relatively of spoiler 62 flows in other outlet 544a.So, except can To disperse thermal current flowing and to reduce outside sinuous flow generation, burning waste gas can also be avoided in combustor In 507 the effects such as accumulation heat, and effectively reduce the temperature of printing opacity shielding 52.

The present invention difference maximum with prior art is: (1) is burnt with diversion Design precise control Secondary mixed gas mode, when making burning gas, be not subject to high-temp waste gas disturbance above dividing plate and be greatly reduced into The oxygen concentration of gas, and then improve efficiency of combustion.(2) utilize the Coanda effect of fluid, increased with effective Plus laminar flame combustion range, the generation of flame periphery sinuous flow is greatly decreased, it is to avoid excessively mix gas and produce Raw colourless flame and nitride.And reach applied widely and have high-effect and low CO and nitridation Thing (no_x) discharge capacity gas combustion device, simultaneously in the case of not increasing gas supply amount, can increase Plus visual crocus flame visibility and scale height.The gas of the present invention burns burner and is used in watt This fireplace is an application examples, and the purposes of this gas combustion device non-limiting.

The foregoing is only the preferable possible embodiments of the present invention, every application description of the invention and The equivalence changes that claim is done, ought to be included in scope of the presently claimed invention.

Claims (25)

1. a kind of gas combustion device, comprises:

One burner, in order to the gas that burns, this burner is in elongated and has a gas export along major axis To setting；And

One guiding device, is combined with this burner, this guiding device include the dividing plate of a horizontally set with Two facing baffle plates, this dividing plate has an elongated opening, and respectively this baffle plate is in elongated, respectively this baffle plate At this opening and respectively the position of an apical margin of this baffle plate is higher than a upper surface of this dividing plate；This burning Device is located at below this dividing plate and this gas export is located to should position between two baffle plates；This water conservancy diversion fills Put and separately there is at least one first air intake, this first air intake is located at below this dividing plate and connects this two gear Space between plate.

2. gas combustion device as claimed in claim 1, wherein the first air intake of this guiding device Quantity be multiple, this guiding device includes multiple the first shims below this dividing plate, described Along one with reference to axial interval setting, this reference is axially parallel to the major axis of this burner to first shim To, and described first shim be located at this gas export side, this first shim two neighboring it Between formed this first air intake.

3. gas combustion device as claimed in claim 2, wherein this guiding device includes multiple being located at The second shim below this dividing plate, described second shim along this reference axial direction interval setting and is located at This gas export with respect to the opposite side of described first shim, between this second shim two neighboring Form one second air intake.

4. gas combustion device as claimed in claim 3, wherein respectively this first shim has one One grooving, respectively this second shim there is one second grooving；This two baffle plate passes through this opening, and one should Baffle plate is inserted in described first grooving, and this baffle plate another is inserted in described second grooving.

5. gas combustion device as claimed in claim 3, wherein this guiding device includes two flaps, Respectively this flap along this with reference to axially arranged and be located at this gas export and respectively between this baffle plate, respectively this flap Gradually decrease from lower to upper with respectively the distance between this baffle plate.

6. gas combustion device as claimed in claim 5, wherein respectively this flap has multiple perforations, Described perforation is along this with reference to axially arranged.

7. gas combustion device as claimed in claim 6, the position of wherein said perforation is less than this watt The position of this outlet.

8. gas combustion device as claimed in claim 3, wherein this guiding device includes a fixed mount, Below this dividing plate, described first shim and described second shim are arranged at described fixed mount setting On this fixed mount.

9. gas combustion device as claimed in claim 1, wherein this two baffle plate are that transparent material is made Become.

10. gas combustion device as claimed in claim 1, wherein this burner include a shell with One body, this shell has two risers, forms this gas export between this two riser；This body is arranged In this shell, and there is the venthole that multiple confession gas pass through, described venthole is axially arranged along length And to should gas export.

A kind of 11. gas fireplaces, comprise:

One body of heater, including an air inlet, an air vent and a window, this window is between this air inlet And this air vent between；

One printing opacity shielding, is covered on this window；

One guiding device, is arranged in this body of heater, and it is facing with two that this guiding device includes a dividing plate Baffle plate, this dividing plate will be separated out an air chamber above and a underlying burning in this body of heater Room, this air chamber connects this air inlet, and this combustor corresponds to this printing opacity and shields, and connects this aerofluxus Mouthful；This dividing plate has this air chamber of elongated open communication and this combustor；Respectively this baffle plate is in elongated, Respectively this baffle plate be located at this opening at and respectively an apical margin of this baffle plate position be higher than this dividing plate a upper table Face；This guiding device separately has at least one first air intake, and this first air intake is located at below this dividing plate And connect this opening；And

One burner, in order to the gas that burns, this burner is in elongated and has a gas export along major axis To setting；This burner is located at below this dividing plate and this gas export is located to should be between two baffle plates Position.

12. gas fireplaces as claimed in claim 11, wherein the first air intake of this guiding device Quantity is multiple, and this guiding device includes multiple the first shims below this dividing plate, described the Along one with reference to axial interval setting, this reference is axially parallel to the long axial direction of this burner to one shim, And described first shim is located at the side of this gas export, shape between this first shim two neighboring Become this first air intake.

13. gas fireplaces as claimed in claim 12, wherein this guiding device include multiple positioned at this The second shim below dividing plate, described second shim along this reference axial direction interval setting and is located at this Gas export is with respect to the opposite side of described first shim, shape between this second shim two neighboring Become one second air intake.

14. gas fireplaces as claimed in claim 13, wherein respectively this first shim has one first Grooving, respectively this second shim there is one second grooving；This two baffle plate passes through this opening, and this gear Plate is inserted in described first grooving, and this baffle plate another is inserted in described second grooving.

15. gas fireplaces as claimed in claim 13, wherein this guiding device includes two flaps, respectively This flap along this with reference to axially arranged and be located at this gas export and respectively between this baffle plate, respectively this flap with Respectively the distance between this baffle plate gradually decreases from lower to upper.

16. gas fireplaces as claimed in claim 15, wherein respectively this flap has multiple perforations, institute State perforation along this with reference to axially arranged.

17. gas combustion devices as claimed in claim 16, the position of wherein said perforation is less than should The position of gas export.

18. gas fireplaces as claimed in claim 13, wherein this guiding device includes a fixed mount, Below this dividing plate, described first shim and described second shim are arranged at described fixed mount setting On this fixed mount.

19. gas fireplaces as claimed in claim 11, wherein this two baffle plate are made by transparent material.

20. gas fireplaces as claimed in claim 11, wherein this burner include a shell and a pipe Body, this shell has two risers, forms this gas export between this two riser；This body is arranged at this In shell, and there is the venthole that multiple confession gas pass through, described venthole is axially arranged and right along length Should gas export.

21. gas fireplaces as claimed in claim 11, including an air exhaust auxiliary device, are arranged at this Burning is indoor, and this combustor is divided into one first space and a second space, wherein this aerofluxus Auxiliary device has the exhaust passage connecting this first space and this second space, and this exhaust passage Width tapered towards the direction in this first space from this second space.

22. gas fireplaces as claimed in claim 21, wherein this air exhaust auxiliary device includes one first One end of guide plate and one second guide plate, this first guide plate and this second guide plate is connected to Two walls relatively of this combustor, the direction that the other end is respectively facing this air vent is mutually inclined, and It is separated by a preset distance, and constitute this aerofluxus between this first guide plate and this second guide plate and lead to Road.

23. gas fireplaces as claimed in claim 22, wherein this first guide plate is towards this air vent The one end tilting has one first apical margin, and one end that this second guide plate tilts towards this air vent has One second apical margin, the horizontal level of this first apical margin is higher than the horizontal level of this second apical margin, and Form an outlet of this exhaust passage between this first apical margin and this second apical margin.

24. gas fireplaces as claimed in claim 23, wherein this air exhaust auxiliary device includes two shuntings Plate, this two flow distribution plate is incorporated on this first apical margin along the axis direction of this air vent, and is resisted against This second apical margin, this two flow distribution plate is spaced, and this outlet is separated into multiple outlets.

25. gas fireplaces as claimed in claim 24, wherein this air exhaust auxiliary device includes a flow-disturbing Plate, is arranged between this two flow distribution plate, this spoiler along this air vent axis direction be incorporated into this On two apical margins, and the secondary outlet between this two flow distribution plate is covered in local.