CN208983623U - Industrial heating aoxidizes heating device with low concentration coal-bed gas - Google Patents

Abstract

The utility model discloses industrial heating low concentration coal-bed gas to aoxidize heating device, including main burner, valve and the auxiliary burner being connect with low concentration gas pipe, ultralow concentration gas pipe and natural gas tube, communicated in the outlet side of main burner and auxiliary burner and flue gas case；It further include the high-temperature water tank being mounted on flue gas case, there is air exhauster on high-temperature water tank top, it is provided with a steam jet heat pump above top cover, the gas outlet of air exhauster is connect with the air inlet of steam blast formula heat pump, and the gas outlet of steam jet heat pump and the air inlet of steam heating box connect；It is additionally provided with a purification current divider on the top of flue gas case, the top for purifying current divider is communicated by the second gas-guide tube with the fuel air mouth of auxiliary burner.The utility model solves the problem of that existing low concentration coal-bed gas burner utilizes low pollution environment to the burning of low concentration coal-bed gas；Have the function of the secondary collection of steam energy simultaneously, is suitable for industrial steam energy application.

Description

Industrial heating aoxidizes heating device with low concentration coal-bed gas

Technical field

The utility model relates to gas utilization fields, and in particular to industrial heating low concentration coal-bed gas aoxidizes heating dress It sets.

Background technique

Burner is usually connected to, low concentration by the oxidation unit of low concentration gas in the prior art with thermal to be added Coal bed gas generates hot fume by oxidizing fire, and the heat that hot fume is carried is transmitted to heating device, hot in heating device Cold fluid is heated to be hot fluid by flue gas.Hot fluid is transported to heating zone and heats.Although above-mentioned technique and device can incite somebody to action Low concentration coal-bed gas recycling is got up, then is burnt, a large amount of fuel gas are still had in hot fume, wherein fuel gas Utilization rate is not high, after study measurement discovery, contains certain fuel gas in hot fume, will cause the energy if being expelled directly out Waste and greenhouse effects.

In addition, the calorie value of low concentration coal-bed gas is inadequate, heating efficiency is lower, can not be suitable for the thermal energy of industrial enterprise Demand, so that its utilization rate is lower, and the methane content of super low concentration coal bed gas is lower, is difficult in actual production sharp With not only polluting environment, and there are energy wastes.

Utility model content

The purpose of this utility model is to provide industrial heating low concentration coal-bed gas to aoxidize heating device, solves existing Low concentration coal-bed gas burner to the burning of low concentration coal-bed gas using low, the problem of polluting environment；There is steam energy simultaneously The function of secondary collection is measured, is suitable for industrial steam energy application, and above-mentioned apparatus is optionally to super low concentration coal seam The heat of gas is recycled.

The utility model is achieved through the following technical solutions:

Industrial heating aoxidizes heating device with low concentration coal-bed gas, with low concentration gas pipe, ultralow concentration gas pipe and day The main burner of right tracheae connection is provided with valve on low concentration gas pipe, ultralow concentration gas pipe and natural gas tube, further includes The outlet side of auxiliary burner, flue gas case, the main burner and auxiliary burner passes through respectively in pipeline and flue gas case It communicates, air inlet end passes through pipeline respectively and connect with air-introduced machine；It further include the high-temperature water tank being mounted on flue gas case, institute It states high-temperature water tank top and is fixed with a top cover, air exhauster, the bleeding point face high-temperature water tank of air exhauster are provided in top cover Inner cavity, is provided with a steam jet heat pump above the top cover, the gas outlet of air exhauster and steam blast formula heat pump into Port connection, the gas outlet of the steam jet heat pump and the air inlet of steam heating box connect；Under the high-temperature water tank End is placed in flue gas case through the back part of top cover of flue gas case, forms flue gas between high-temperature water tank and flue gas case Heating chamber is additionally provided with a purification current divider on the top of flue gas case, and the bottom end of the purification current divider passes through first Gas-guide tube is communicated with flue gas chamber, top is communicated by the second gas-guide tube with the fuel air mouth of auxiliary burner.

In view of the above technical problems, the inventive point of the utility model is as follows: 1, it has been further added by an auxiliary burner, it is then right Hot fume heating structure is improved, and high-temperature water tank is located in flue gas case and forms flue gas between flue gas case The outlet side of heating chamber, main burner and auxiliary burner passes through pipeline respectively and communicates with flue gas chamber, in main burner in a steady stream The hot fume being constantly discharged, while heating to high-temperature water tank, a part gradually flow direction can purify current divider, another portion Divide and is directly flowed into auxiliary burner by pipeline.A part of hot fume of flow direction purification current divider is divided into two parts, and a part is just Current divider purification is cleaned to be discharged in air, and most combustible gas can be under the shunting of purification current divider by the Two gas-guide tubes flow in auxiliary burner, are burnt by auxiliary burner to the fuel gas flowed into it, again by hot cigarette after burning Gas is discharged into flue gas chamber, is heated to high-temperature water tank.It, can be flammable by hot fume remaining 30% by above structure Gas uses again, and combustion utilization efficiency not only can be improved, and reduces environmental pollution, and two burners work together, more Promote the heating efficiency of medium in high-temperature water tank, Applied economy.2, air exhauster, steam-sprayed is set on high-temperature water tank top The high-temperature steam that high-temperature water tank generates is collected and is sent into steam-sprayed heat by heat pump, steam heating box, air exhauster acceleration In pump, high-temperature steam high speed is expanded under vacuum by the Laval nozzle of steam jet heat pump, and potential energy is converted into kinetic energy, High velocity vapor stream is formed at jet hole, due to the Involving velocity of high velocity vapor stream, the cold air stream in air is logical by air-breathing Road is mutually mixed with high-temperature steam, carries out the exchange of energy and quality, mixing steam is using super in steam jet heat pump The expansion segment of high speed diffuser forms shock wave, due to the pressurization of shock wave, mixes steam and is pressurized to one at diffuser exit again Determine back pressure value, heats air inlet subsequently into the steam of steam heating box.In above process, the utility model is not only by high temperature The vapor energy secondary Collection utilization of water tank, while due also to cold air stream is passed through engine driven supercharging by steam jet heat pump Mode switchs to a part of the mixing steam with high temperature and pressure, the volume and heat of mixing steam is increased, so that most laggard Enter the steam energy to work in steam heating box to greatly increase, can satisfy industrial needs, solves existing low concentration The problem of coal bed gas thermal energy value is inadequate, can not be suitable for the application of industrial steam energy.3, in low concentration gas pipe, super low concentration Valve is set on gas pipe and natural gas tube, low concentration gas pipe and ultralow can be selected according to the actual situation during the work time One is opened in valve on concentration gas pipe, and in addition one is closed, and adjusts the valve of natural gas tube to realize to ultralow dense Spend the utilization of gas or low concentration gas.

The air inlet of the air-introduced machine of connection main burner and auxiliary burner is respectively facing relative direction, further includes reversal valve, The reversal valve with two air-introduced machines and connect the pipeline connection at main burner and auxiliary burner air inlet end simultaneously.Wind direction There can be certain influence to air-introduced machine work, when wind direction is consistent with air-introduced machine air inducing direction, air-introduced machine introduces the effect of air Rate is higher, does work smaller；When wind direction and air-introduced machine air inducing direction are inconsistent, air-introduced machine needs to overcome wind-force, does more function, Its energy consumption is bigger, and the effect for introducing air stream is poor.In view of the above problems, inventor is in two air-introduced machines and main and side burner Between be provided with a reversal valve, reversal valve can be switched according to the difference of wind direction, with guarantee connection main burner air-introduced machine It is consistent with wind direction, it is in high-efficiency operation state, improves the efficiency that air-flow enters main burner.

Smoke exhaust pipe is additionally provided on purification current divider, one end of the smoke exhaust pipe communicates with the inner cavity for purifying current divider, The other end is communicated with atmosphere, the inlet end of the second gas-guide tube of outlet side face of first gas-guide tube, and the first gas-guide tube Outlet side is higher than the highest point of smoke evacuation nozzle；It is also equipped with tap water in the inner cavity of purification current divider, first gas-guide tube Outlet side, smoke evacuation nozzle are above originally water level.Methane, carbon monoxide, carbon dioxide, oxygen are generally comprised in hot fume, Methane, the air quality of carbon monoxide are all lighter than carbon dioxide, oxygen, and diffusivity is higher, so the utility model is by first The inlet end of the second gas-guide tube of outlet side face of gas-guide tube, and it is higher than the highest point of smoke evacuation nozzle, most of in this way methane, one Carbonoxide has just been directly entered the second gas-guide tube and has suffered, and most of carbon dioxide, oxygen are then assembled in lower end and enters smoke evacuation It is discharged into air in pipe.The above structure is the concrete principle structure for purifying current divider and shunting, and can lower discharge of poisonous waste and arrive Amount in atmosphere reduces air pollution.It is general also containing there are many quality of dust, dust to be greater than methane, an oxygen in hot fume Change carbon, tap water is arranged in the inner cavity of purification current divider in the utility model, and the dust of adsorbable whereabouts is further decreased to sky The pollution of gas.

Preferably, layer of active carbon is also evenly arranged on the inner wall of the smoke exhaust pipe.Active carbon can effectively adsorb an oxygen The pollution to air can be further decreased by the setting of active carbon by changing the pernicious gases such as carbon.

Preferably, the internal chamber wall upper end of the main burner is additionally provided with soot blower group, bottom end is provided with a dust and inhales Water receiving tank, the soot blower group include that the first soot blowing head, the second soot blowing head and chain wheel, the chain wheel are fixed on main burning Elliptical ring is formed on the internal chamber wall of device, multiple first soot blowing heads pass through connecting rod respectively and the outer wall of chain wheel is fixed and along chain The circumferential setting of wheel, the second soot blowing head are mounted on two relative inner walls of main burner by bracket, are rotated in chain wheel In the process, the deashing antenna phase mutual friction of the first soot blowing head and the second soot blowing head.It also include blowing in existing main burner Grey device, soot blower are generally located in the top of burner nozzle, since low concentration coal-bed gas also has volume of smoke in combustion, So soot blower can also operate cleaning inner wall, but existing structure can only be to burner during main burner work Inner wall is cleared up, and soot blower automatic oneself cannot be cleared up, and in use for some time, soot blower surface adhesive dust is excessive, Its cleaning effect will be greatly reduced.In view of the above technical problems, the utility model devises one group of soot blower group, soot blower group packet The first soot blowing head, the second soot blowing head and chain wheel group are included, the first soot blowing head and chain wheel group form dynamic deashing group, can be circumferential Operate deashing；Second soot blowing head is fixed on the internal chamber wall of main burner, for static deashing group, can only rotation deashing, in chain During wheel movement, the deashing antenna of the deashing antenna of the first soot blowing head and the second soot blowing head contacts with each other friction, so that the One soot blowing head is mutually cleared up with the second soot blowing head, to reduce the dust deposit amount on soot blower.Under dust nature after cleaning It falls, dust is adsorbed by dirt absorption sink, can reach the purpose for reducing Dust Capacity.

Preferably, the steam jet heat pump uses JF-CV steam jet heat pump.

Second gas-guide tube includes inner and outer tubes, is welded between said inner tube and outer tube by a fixed mode, And sandy soil are filled between inner tube and outer tube.Using the endothermic character of sandy soil, the second gas-guide tube is designed to inner and outer pipes gaza soil Covering heat insulation structural, the heat insulation effect of the second gas-guide tube is greatly improved, to reduce combustible gas by the second air guide Pipe flows to thermal loss when auxiliary burner.

Pressure reducing valve is additionally provided on second gas-guide tube.Pressure reducing valve can reduce the internal pressure of the second gas-guide tube, avoid the occurrence of Explosion issues.

Preferably, it is fixed with a circle snap ring on the outer wall of high-temperature water tank, is provided with a circle card on the top of flue gas case Slot, after high-temperature water tank runs through the top cover of flue gas case, the central axis of the card slot is overlapped with the center line of high-temperature water tank, And card slot is mutually matched with snap ring.The above are high-temperature water tanks to be mounted on the specific structure on flue gas case, passes through snap ring and card The setting of slot, can strengthen leakproofness when high-temperature water tank is connect with flue gas case, and the hot fume for avoiding flue gas intracavitary is let out Leakage.

The utility model compared with prior art, has the following advantages and benefits:

1, the utility model industrial heating aoxidizes heating device with low concentration coal-bed gas, can be by hot fume remaining 30% Fuel gas uses again, and combustion utilization efficiency, reduction environmental pollution, and two burners work together not only can be improved Make, more promotes the heating efficiency of medium in high-temperature water tank, Applied economy；

2, the utility model industrial heating aoxidizes heating device with low concentration coal-bed gas, fires in two air-introduced machines and major-minor It is provided with a reversal valve between burner, reversal valve can be switched according to the difference of wind direction, to guarantee drawing for connection main burner Blower is consistent with wind direction, is in high-efficiency operation state, improves the efficiency that air-flow enters main burner；

3, the utility model industrial heating low concentration coal-bed gas aoxidizes heating device, and purification current divider can lower nuisance Matter is discharged into the amount in atmosphere, reduces air pollution；

4, the utility model industrial heating aoxidizes heating device with low concentration coal-bed gas, not only by the vapor of high-temperature water tank Energy secondary Collection utilization, while due also to cold air stream is switched to have by way of engine driven supercharging by steam jet heat pump A part of the mixing steam of high temperature and pressure, increases the volume and heat of mixing steam, so that finally entering steam heating box The middle steam energy to work greatly increases, and can satisfy industrial needs, solves existing low concentration coal-bed gas thermal energy value Not enough, the problem of industrial steam energy application can not be suitable for；

5, the utility model industrial heating aoxidizes heating device with low concentration coal-bed gas, devises one group of soot blower group, can With the self-cleaning when soot blower works, the dust deposit amount on soot blower is reduced, the dust after cleaning falls naturally, by dust It absorbs sink to adsorb dust, can reach the purpose for reducing Dust Capacity.

Detailed description of the invention

Attached drawing described herein is used to provide to further understand the utility model embodiment, constitutes the one of the application Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings:

Fig. 1 is the overall structure diagram of the utility model；

Fig. 2 is the structural schematic diagram for purifying current divider；

Fig. 3 is schematic layout pattern of the soot blower group on main burner；

Fig. 4 is the structural schematic diagram of the second gas-guide tube；

Fig. 5 is the structural schematic diagram of snap ring.

Label and corresponding parts title in attached drawing:

1- main burner, 2- auxiliary burner, 3- flue gas case, 4- pipeline, 5- air-introduced machine, 6- high-temperature water tank, 7- top cover, 8- steam jet heat pump, 9- steam heating box, 10- flue gas chamber, 11- purify current divider, the first gas-guide tube of 12-, 13- the Two gas-guide tubes, 14- reversal valve, 15- smoke exhaust pipe, originally water level, 17- snap ring, 18- dirt absorption sink, 19- first are blown 16- Grey head, 20- pressure reducing valve, 21- low concentration gas pipe, 22- the second soot blowing head, 23- chain wheel, 24- inner tube, 25- outer tube, 26- are husky Soil, 27- ultralow concentration gas pipe, 28- natural gas tube, 29- valve.

Specific embodiment

For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment and attached drawing, The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this Utility model is not intended to limit the scope of the present invention.

Embodiment 1

As shown in Fig. 1,4, the utility model industrial heating aoxidizes heating device, including main burner with low concentration coal-bed gas 1, above-mentioned main burner 1 is connect with low concentration gas pipe 21, ultralow concentration gas pipe 27 and natural gas tube 28, and low concentration gas The valve 29 of control corresponding pipeline circulation is provided on pipe 21, ultralow concentration gas pipe 27 and natural gas tube 28, in the course of work In one in valve 29 on low concentration gas pipe 21 and ultralow concentration gas pipe 27 can be selected to open according to the actual situation, separately Outer one closure, and the valve 29 of natural gas tube 28 is adjusted to realize the utilization to ultralow concentration gas or low concentration gas.It needs It is noted that can also use ultralow concentration gas and low concentration gas according to real ratio simultaneously in use, And the valve 29 of natural gas tube 28 is adjusted accordingly, control different flows.Above-mentioned industrial heating is aoxidized with low concentration gas to be added Thermal further includes auxiliary burner 2, flue gas case 3, and the outlet side of the main burner 1 and auxiliary burner 2 passes through pipe respectively It is communicated in road 4 and flue gas case 3, air inlet end passes through pipeline 4 respectively and connect with air-introduced machine 5；It further include being mounted on flue gas High-temperature water tank 6 in heater box 3,6 top of high-temperature water tank are fixed with a top cover 7, are provided with air exhauster in top cover 7, 6 inner cavity of bleeding point face high-temperature water tank of air exhauster is provided with a steam jet heat pump 8, air exhauster above the top cover 7 Gas outlet connect with the air inlet of steam blast formula heat pump 8, the gas outlet of the steam jet heat pump 8 and steam heating box 9 air inlet connection, steam heating box 9 do heating use for providing heat；The lower end of the high-temperature water tank 6 adds through flue gas The back part of top cover of hot tank 3 is placed in flue gas case 3, and flue gas chamber is formed between high-temperature water tank 6 and flue gas case 3 10, it is additionally provided with a purification current divider 11 on the top of flue gas case 3, the bottom end of the purification current divider 11 passes through first Gas-guide tube 12 is communicated with flue gas chamber 10, top is communicated by the second gas-guide tube 13 with the fuel air mouth of auxiliary burner 2.Institute It states steam jet heat pump 8 and uses JF-CV steam jet heat pump.Second gas-guide tube 13 includes inner tube 24 and outer tube 25, It is welded between said inner tube 24 and outer tube 25 by a fixed mode, and is filled with sandy soil 26 between inner tube 24 and outer tube 25. Pressure reducing valve 20 is additionally provided on second gas-guide tube 13.By above structure, the utility model can will be remaining in hot fume 30% fuel gas uses again, and combustion utilization efficiency not only can be improved, and reduces environmental pollution, and two burners are together Work, more promotes the heating efficiency of medium in high-temperature water tank, Applied economy.It simultaneously can also be by the vapor energy of high-temperature water tank Secondary Collection utilization can satisfy industrial needs, and it is inadequate to solve existing low concentration coal-bed gas thermal energy value, can not be suitable for work The problem of steam energy is applied in industry.

Embodiment 2

As shown in Figure 1, on the basis of embodiment 1, connecting the air inlet of the air-introduced machine 5 of main burner 1 and auxiliary burner 2 Be respectively facing relative direction, further include reversal valve 14, the reversal valve 14 simultaneously with two air-introduced machines 5 and connect main burner 1 and 2 air inlet end of auxiliary burner pipeline 4 connect.Reversal valve 14 can be switched in the utility model, to guarantee to connect main burner 1 air-introduced machine 5 is consistent with wind direction, is in high-efficiency operation state, improves the efficiency that air-flow enters main burner 1.

Embodiment 3

As shown in Fig. 2, on the basis of embodiment 1, being additionally provided with smoke exhaust pipe 15, the smoke evacuation on purification current divider 11 One end of pipe 15 is communicated with the inner cavity of purification current divider 11, the other end is communicated with atmosphere, the outlet side of first gas-guide tube 12 The inlet end of the second gas-guide tube of face 13, and the outlet side of the first gas-guide tube 12 is higher than 15 mouthfuls of smoke exhaust pipe of highest point；It is purifying Be also equipped with tap water in the inner cavity of current divider 11, the outlet side of first gas-guide tube 12,15 mouthfuls of smoke exhaust pipe be above tap water Liquid level 16.Layer of active carbon is also evenly arranged on the inner wall of the smoke exhaust pipe 15.The is additionally provided on purification current divider 11 Two water filling ports and the second discharge outlet, second discharge outlet is close to the bottom end of purification current divider 11, the highest point of the second water filling port Lower than plane where the outlet side of the first gas-guide tube 12.Under normal circumstances, the second water filling port and the second discharge outlet are all made of plug Son sealing has been blocked.By purifying the shunting of current divider, amount of the discharge of poisonous waste into atmosphere can be lowered, reduced to air Pollution, environmental protection it is practical.

Embodiment 4

As shown in figure 3, on the basis of embodiment 1, the internal chamber wall upper end of the main burner 1 is additionally provided with soot blower Group, bottom end are provided with a dirt absorption sink 18, the soot blower group include the first soot blowing head 19, the second soot blowing head 22 and Chain wheel 23, the chain wheel 23, which is fixed on the internal chamber wall of main burner 1, forms elliptical ring, and multiple first soot blowing heads 19 are distinguished It is fixed by the outer wall of connecting rod and chain wheel 23 and is arranged along the circumferential direction of chain wheel 23, the second soot blowing head 22 is installed by bracket On two relative inner walls of main burner 1, in 23 rotation process of chain wheel, the first soot blowing head 19 and the second soot blowing First 22 deashing antenna phase mutual friction.The above structure can when soot blower works self-cleaning, reduce dust on soot blower Deposition, the dust after cleaning fall naturally, are adsorbed by dirt absorption sink 18 to dust, and can reach reduces Dust Capacity Purpose.

Embodiment 4

As shown in figure 5, on the basis of embodiment 1, a circle snap ring 17 is fixed on the outer wall of high-temperature water tank 6, in cigarette The top of gas heater box 3 is provided with a circle card slot, after high-temperature water tank 6 runs through the top cover of flue gas case 3, the center of the card slot Axis is overlapped with the center line of high-temperature water tank 6, and card slot is mutually matched with snap ring 17.Installation spiral shell is additionally provided on snap ring 17 Nail, is provided with installation screw on high-temperature water tank 6, and 17 sets of snap ring after high-temperature water tank, snap ring 17 are inserted into card slot, is then twisted Tight mounting screw.

Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model Determine the protection scope of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced It changes, improve, should be included within the scope of protection of this utility model.

Claims (9)

1. industrial heating with low concentration coal-bed gas aoxidize heating device, including with low concentration gas pipe (21), ultralow concentration gas Manage the main burner (1) of (27) and natural gas tube (28) connection, the low concentration gas pipe (21), ultralow concentration gas pipe (27) With valve (29) are provided on natural gas tube (28), which is characterized in that further include auxiliary burner (2), flue gas case (3), institute The outlet side for stating main burner (1) and auxiliary burner (2) pass through respectively communicated in pipeline (4) and flue gas case (3), air into Gas end passes through pipeline (4) respectively and connect with air-introduced machine (5)；It further include the high-temperature water tank (6) being mounted on flue gas case (3), High-temperature water tank (6) top is fixed with a top cover (7), is provided with air exhauster in top cover (7), the bleeding point of air exhauster is just To high-temperature water tank (6) inner cavity, be provided with a steam jet heat pump (8) above the top cover (7), the gas outlet of air exhauster with The air inlet of steam jet heat pump (8) connects, gas outlet and steam heating box (9) of the steam jet heat pump (8) Air inlet connection；Back part of top cover of the lower end of the high-temperature water tank (6) through flue gas case (3) is placed in flue gas case (3) in, flue gas chamber (10) are formed between high-temperature water tank (6) and flue gas case (3), on the top of flue gas case (3) It is additionally provided with a purification current divider (11), the bottom end of purification current divider (11) is added by the first gas-guide tube (12) with flue gas Hot chamber (10) communicates, top is communicated by the second gas-guide tube (13) with the fuel air mouth of auxiliary burner (2).

2. industrial heating according to claim 1 aoxidizes heating device with low concentration coal-bed gas, which is characterized in that connection master The air inlet of the air-introduced machine (5) of burner (1) and auxiliary burner (2) is respectively facing relative direction, further includes reversal valve (14), institute It states reversal valve (14) and with two air-introduced machines (5) and connect the pipe of main burner (1) and auxiliary burner (2) air inlet end simultaneously Road (4) connection.

3. industrial heating according to claim 1 aoxidizes heating device with low concentration coal-bed gas, which is characterized in that purifying It is additionally provided on current divider (11) smoke exhaust pipe (15), one end of the smoke exhaust pipe (15) and the inner cavity phase of purification current divider (11) The logical, other end is communicated with atmosphere, the inlet end of the second gas-guide tube of outlet side face (13) of first gas-guide tube (12), and the The outlet side of one gas-guide tube (12) is higher than the highest point of smoke exhaust pipe (15) mouth；It is also equipped in the inner cavity of purification current divider (11) certainly Water, the outlet side of first gas-guide tube (12), smoke exhaust pipe (15) mouth are above originally water level (16).

4. industrial heating according to claim 3 aoxidizes heating device with low concentration coal-bed gas, which is characterized in that the row Layer of active carbon is also evenly arranged on the inner wall of smoke pipe (15).

5. industrial heating according to claim 1 aoxidizes heating device with low concentration coal-bed gas, which is characterized in that the master The internal chamber wall upper end of burner (1) is additionally provided with soot blower group, bottom end is provided with a dirt absorption sink (18), the soot blowing Device group includes the first soot blowing head (19), the second soot blowing head (22) and chain wheel (23), and the chain wheel (23) is fixed on main combustion Form elliptical ring on the internal chamber wall of burner (1), multiple first soot blowing heads (19) pass through the outer of connecting rod and chain wheel (23) respectively Wall is fixed and along the circumferential direction setting of chain wheel (23), and the second soot blowing head (22) is mounted on two of main burner (1) by bracket On relative inner wall, in chain wheel (23) rotation process, the deashing of the first soot blowing head (19) and the second soot blowing head (22) Antenna phase mutual friction.

6. industrial heating according to claim 1 aoxidizes heating device with low concentration coal-bed gas, which is characterized in that the steaming Vapour jet type heat pump (8) uses JF-CV steam jet heat pump.

7. industrial heating according to claim 1 aoxidizes heating device with low concentration coal-bed gas, which is characterized in that described the Two gas-guide tubes (13) include inner tube (24) and outer tube (25), pass through a fixed mode between said inner tube (24) and outer tube (25) Welding, and sandy soil (26) are filled between inner tube (24) and outer tube (25).

8. industrial heating according to claim 1 aoxidizes heating device with low concentration coal-bed gas, which is characterized in that described the Pressure reducing valve (20) are additionally provided on two gas-guide tubes (13).

9. industrial heating according to claim 1 aoxidizes heating device with low concentration coal-bed gas, which is characterized in that in high temperature It is fixed with a circle snap ring (17) on the outer wall of water tank (6), is provided with a circle card slot on the top of flue gas case (3), works as high-temperature water After the top cover of flue gas case (3), the central axis of the card slot is overlapped case (6) with the center line of high-temperature water tank (6), and Card slot is mutually matched with snap ring (17).