CN2300851Y - Efficient oil and gas combustion water boiling furnace - Google Patents

Abstract

The utility model provides an unpressurized oil and gas combustion water boiling furnace, comprising a thermal current passage which is composed of multiple disturbance units such as a furnace chamber, a shunt pipe, a main thermal current rising passage, a transition smoke chamber, a first smoke pipe, a buffering smoke chamber, a second smoke pipe, etc. The multiple thermal current shunting and mixing processes in the passage increase the heat transfer area and the disturbance of the thermal currents inside the furnace, and prolong the heat exchange time, which lead the heat energy to be absorbed more fully with a thermal efficiency of over 92%. Reflux formed at the time when the burner is combusted in the furnace chamber enhances combustion temperature and extends the combustible time of the furnace chamber. The oil and the gas can be burned fully with little chimney spot, which minimizes the pollution degree of smoke to environment.

Description

High heat is imitated fuel oil, gas water-heating furnace

The high heat of the utility model is imitated fuel oil, and gas water-heating furnace is a kind of of water heater.

Existing middle-size and small-size fuel oil (combustion gas) water heater, usually burner hearth is in the water heater bottom, is directly arranging the smoke exhaust pipe of some and bore by vertical direction above burner hearth, as fume emission, because chamber structure is simple, direct exhaust of smoke pipe and acceptor form height degree structure, restrictions such as heat transfer area, ubiquity has burning insufficient, flue dust is bigger, flame and flue gas heat exchange deficiency, the throat exhaust temperature is higher, the phenomenon that the thermal efficiency is low.

The purpose of this utility model is to provide a kind of flame combustion more abundant, and exhaust gas temperature is lower, waste heat still less, the fuel oil that the thermal efficiency is higher (combustion gas) heat, Boiler, its can hot water without interruption and the footpath cross the boiling water that boils.

The purpose of this utility model takes following measure to reach, and whole stove adopts the corrosion-resistant material that meets national drinking container regulation again such as corrosion resistant plate and stainless steel tube to make, and its structure is as figure ㈠.Each label lexical or textual analysis of figure ㈠ is as follows:

(1) burner, (2) bolt, (3) burner joint, (4) burner hearth, (5) the thermal current master rises passage, (6) transition smoke-box, (7) smoke pipe I, (8) water storage tank, (9) buffering smoke-box, (10) smoke pipe II, (11) hot water outlet, (12) boiling water outlet, (13) boiling water frid (annotating: between the top bellmouth of boiling water frid and the smoke pipe II certain slit is arranged) so that the boiling water of boiling overflows, (14) boiling water, (15) flue gas dividing plate, (16) gas skirt, (17) smokestack mouth, (18) water storage tank position chain of command, (19) body of heater inner casing, (20) heat-insulation layer, (21) isocon, (22) water inlet pipe, (23) base of furnace body.

Burner joint (3), burner hearth (4) the thermal current master who makes of corrosion resistant plate rises passage (5), isocon (21), transition smoke-box (6), smoke pipe I (7), buffering smoke-box (9), smoke pipe II (10) and is connected and constituted whole internal-combustion thermal current passway.Except that the floss hole of top of the jet of the external burner of burner joint (3) and smoke pipe II (10) as flue gas, whole burner hearth and air flue are airtight interior connectivity structure body, and its outer surface is immersed in the water of the water storage tank of being made up of internal layer furnace shell (19) and boiling water frid (13) (8).

The utility model is connected burner (1) with bolt with burner joint (3) become one burner (1) and whole water heater.The flame direct injection for improving burning quality, is lighted oil in combustion process on the one hand advance burner hearth (4) lining during burner (1) ignition after the high-pressure pump atomizing, mixes air-breathing according to burning needs (by the air blast of burner inside) again.The flame combustion process that burner (1) is injected in the burner hearth is the conversion process of heat energy, the part of its heat energy is absorbed by the hearth wall corrosion resistant plate by heat radiation, remaining heat energy then makes the air heat in when burning air become carrier of heat energy, thereby form one thermal current or be called as flue gas, the gas channel heat radiation back footpath throat (17) in body of heater discharges outside body of heater.Because, we to heat to as if " water ", therefore the design of whole water heater has two center main points, how one guarantees that burner (1) is fully thorough in the body of heater internal combustion; Its two, be that heat energy in the thermal current that how burner (1) is formed in the burning of burner hearth (4) lining transforms once more or conducts water in the heating target water storage tank real to us.Fact proved: under same sufficient combustion and the good situation of insulation, through throat (17) give off body of heater outside thermal current---flue-gas temperature is low more, the thermal efficiency of this water heater is just high more.

The utility model will be described in further detail in conjunction with figure ㈠ embodiment: burner hearth (4) is the key position of burner (1) burning, and the shaping meeting of its contour structures geometry directly influences the quality of burning, determines the flow direction and the heat exchange effect of thermal current.

The cross-sectional area of the burner hearth (4) that these family expenses are novel and length and its during the burner that adopts (1) burning the cross-sectional area and the length of flame proportional.The cross section of burner hearth (4) is an arbitrary shape, the flat partially ellipse of general employing.Burner hearth (4) afterbody top has the isocon (21) of many vertical direction dischargings to be communicated with transition smoke-box (6) welding, the thermal current master that certain cross-sectional area is left in burner hearth (4) the place ahead rises passage (5), the flame that constantly ejects when burner (1) is during in burner hearth (4) internal combustion, because the not end of burner hearth (4) seals, the formed thermal current of flame combustion, major part can only be in burner hearth (4) the reverse circuitous widely different peripheral space that is prolonging flame pour in down a chimney thermal current master to the front and rise passage (5) and enter in the transition smoke-box (6), the thermal current of another fraction advances to tap into tail end into transition smoke-box (6) through isocon (21), the back-pressure in the time of can regulating or reduce burner hearth (4) burning thus.Since the reverse thermal current that pours in down a chimney be full of whole burner hearth (4) and constantly burned flame surround, improved the temperature in flame outer space, correspondingly change the interior temperature of burner hearth (4).Have such problem in other burner hearths, during by burner combustion, when the air capacity dispensing is few, it is insufficient to burn, over-emitting black exhaust; The air dispensing is many, and it is insufficient to burn equally, Mao Baiyan; Both made the air ration just, but the tail that always has the sub-fraction mist of oil to be blown to flame by air blast enters flue or low-temperature region cinder combustion not yet slightly, and this this not the part flue dust of cinder combustion on flue, deposit, influence heat-transfer effect.

At burner hearth of the present utility model (4) when burn in the lining, regulate the air ration of burner (1), adopt the method for " an amount of excess air burning " dispensing, enough air are arranged when guaranteeing to burn, and minute quantity not the mist of oil of cinder combustion or escape of gas to the edge of flame or tail slightly, because the turbulent annulus that the friction of the thermal current mutual agitation of two strands of reverse high temperature forms on the critical surface between whole flame periphery and the thermal current surrounds flame, the chance that not most mist of oil that fires or gas here can be fully burned once more, leakage person again has a surplus, before not entering the air flue of lower temperature, the temperature of burner hearth (4) lining surrounding space is higher also can to burn.Improve integrated heat efficiency of the present utility model thereby solve.

The utility model water heater except that the combustion efficiency that has improved burner hearth (4), has also improved heat exchange effect with water from other many-sides.Not only the wall of burner hearth (4) is under water fully, increase effective heat transfer area, the thermal current of considering burner hearth (4) lining simultaneously have one nature to climbing power, heat output half side on the burner hearth is greater than following half side heat output, it is minor axis that burner hearth (4) is made into above-below direction with corrosion resistant plate, the left and right horizontal direction is the ellipse of major axis, and the axle center height of flame combustion departs to the below of elliptical center, improve half side heat-transfer effect under the burner hearth, the heat transmission of the upper and lower sides of whole burner hearth is tending towards evenly, reduces the volume and the height of burner hearth effectively.

The utility model transmits in the exchange process in whole heat, because burner hearth, smoke-box, the thermal conductivity factor of air flues such as smoke pipe outside hydrophily matter is far longer than inboard gas, so how to make heat energy that burner (1) burning sent more effectively by thermal current pass to the inner each several part stainless steel of the body of heater air flue wall of process, it also is the problem that the utility model internal structure will solve, a heat energy part of being sent by burner (1) burning is absorbed by the furnace wall of burner hearth (4), and remaining rises passage (4) and isocon (21) branch two-way enters transition smoke-box (6) with thermal current through the thermal current master.It is to consider the circulation of thermal current and another strand thermal current intersection in transition smoke-box (6) of isocon that the base plate of transition smoke-box (6) has constant slope, thermal current is discharged through smoke pipe I (7) more equably, smoke pipe I (7) is communicated with buffering smoke-box (9), thermal current through smoke pipe I (7) buffering smoke-box (9) once more intersection mix, again by smoke pipe II (10) separation panel to the top collection chamber outside throat is discharged body of heater.Smoke pipe I (7) and smoke pipe II (10) stagger at the arrangement upper orifice, and the sectional area of cross section that smoke pipe I (7) and smoke pipe II (10) are total separately and burner (1) flame is proportional.Smoke pipe I (7) and smoke pipe II (10) adopt the screw thread stainless steel tube to increase heat-transfer effect, and thermal current begins the shunting through a plurality of unit from burner hearth (4) lining, and---mixing---shunting again---mixes again ...Increased stirring naturally of thermal current, increased heat transfer area, prolonged the path of thermal current heat radiation process and the time of staying of carrying out heat exchange in stove, improved the overall thermal exchange efficiency widely, and compact on the general structure, profile Fang Yuan all can.

By a series of effective simply again processing procedures on the above structure, the delivery temperature of the utility model throat can drop to a very low degree.Heat energy is absorbed to pass fully to be changed, and has improved the thermal efficiency of whole water heater, has reduced the pollution level of fume emission.

Claims (8)

1, a kind of fuel oil, gas water-heating furnace, by fuel oil, gas burner, the burner joint, advance the cold water pipe fitting, hot-water outlet pipe's part, burner hearth, thermal current passway, in the body of heater, compositions such as shell, it is characterized in that burner joint (3) is being communicated with the burner hearth (4) of bottom of furnace body, isocon (21), the thermal current master rises passage (5), transition smoke-box (6), smoke pipe I (7), buffering smoke-box (9), smoke pipe II (10) etc., be communicated with many disturbances unit thermal current passway in constituting by level and be immersed in by body of heater inner casing (19) and boiling water frid (13) in the water of the water storage tank that surrounds (8).

2,, it is characterized in that the flame injection direction of burner (1) in burner hearth (4) air thermal current formed with it is the rightabout motion according to the described fuel oil of claim 1, gas water-heating furnace.

3,, it is characterized in that thermal current passway and heat transfer area are by burner hearth (4), thermal current passway (5), isocon (21), transition smoke-box (6), smoke pipe I (7), buffering smoke-box (9), smoke-box II formations such as (10) according to the described fuel oil of claim 1, gas water-heating furnace.

4,, it is characterized in that transition smoke-box (6), cushion the top of smoke-box (9) in burner hearth (4) according to the described fuel oil of claim 1, gas water-heating furnace.

5,, it is characterized in that the cross-sectional area and the length of the cross-sectional area of burner hearth (4) and length and burner, combustion flame is proportional according to the described fuel oil of claim 1, gas water-heating furnace.

6, according to the described fuel oil of claim 1, gas water-heating furnace, it is characterized in that expanding the cross-sectional area of thorax (4) and isocon (21) and thermal current master, to rise the cross-sectional area of passage (5) proportional.

7,, it is characterized in that the cross-sectional area of many isocons (21) and the cross-sectional area that the thermal current master rises passage (5) are proportional according to claim 1,6 described fuel oils, gas water-heating furnace.

8,, it is characterized in that the each several part member can use metal materials such as stainless steel, copper or aluminium to constitute in the body of heater according to the described fuel oil of claim 1, gas water-heating furnace.

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