CN204042926U - There is the coal mine methane catalytic oxidation combustion device of cyclic preheat - Google Patents
There is the coal mine methane catalytic oxidation combustion device of cyclic preheat Download PDFInfo
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- CN204042926U CN204042926U CN201420505788.7U CN201420505788U CN204042926U CN 204042926 U CN204042926 U CN 204042926U CN 201420505788 U CN201420505788 U CN 201420505788U CN 204042926 U CN204042926 U CN 204042926U
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- weary wind
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- catalytic oxidation
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- mine methane
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Abstract
The utility model discloses a kind of coal mine methane catalytic oxidation combustion device with cyclic preheat, comprise weary wind gas handling system, combustion chamber, weary wind gas extraction system and heat regenerative system, the reaction tube outer wall round combustion chamber is furnished with electrical heating wire; The entrance of described combustion chamber is connected with weary wind gas handling system by pipeline, and the outlet of combustion chamber is connected with the weary wind system of giving vent to anger by pipeline; Described heat regenerative system comprises arm, connects entry of combustion chamber and the pipeline between weary wind gas handling system, is connected combustor exit and is connected by arm with the pipeline that weary wind is given vent to anger between system; Described weary wind gas handling system comprises weary wind inlet tube and is arranged on the second valve on weary wind inlet tube, and the described weary wind system of giving vent to anger comprises weary wind outlet and is arranged on the 3rd valve on weary wind outlet.In the utility model, combustion chamber and arm form confined space, and electrical heating wire is started working, and can heat to rapidly the catalyst in combustion chamber in airtight space, thus reach weary wind catalytic oxidation open combustion temperature.
Description
Technical field
The utility model relates to coal mine wind-lack gas catalytic oxidation field, particularly a kind of coal mine methane catalytic oxidation combustion device with cyclic preheat.
Background technology
Pit mining brings a large amount of mine ventilation gas (weary wind) discharge, because its concentration is low, lacks effective Land use systems and is directly entered in air.In coal mine methane, main component is methane, and the methane that China's coal-mine is drained into air by weary wind has reached 150 billion cubic meters, is the maximum industrial emission source of methane.The greenhouse effects of methane are about 21 times of carbon dioxide simultaneously, have extremely strong destructive power to environment.The direct discharge of this coal mine methane causes the huge waste of limited non-renewable resources on the one hand, also exacerbates and greenhouse effects on the other hand.Coal mine methane discharge capacity is huge, and effective Application way is hot counter flow oxidation technology (TFRR) and catalytic oxidation reverse flow technique (CFRR) at present.The basic functional principle of these two kinds of counter flow oxidation technology is substantially identical with structure, and the main distinction is that CFRR employs oxidation catalyst, reduces the temperature required for the oxidation of weary wind.Adopt TFRR technical finesse coal mine wind-lack gas successfully to carry out business application at home and abroad, and CFRR technology is only applied at present in positive colliery, Shanxi five.But consider from the angle of practical application, adopt TFRR technical finesse coal mine wind-lack gas to also exist and easily produce oxynitrides, take up an area the subject matters such as relatively large, drag losses is very large, controlling extent requirement is high automatically, maintenance cost is high.
Utility model content
In view of this, the utility model provides a kind of coal mine methane catalytic oxidation combustion device with cyclic preheat, and this device operating efficiency is high, startup firing rate is fast, compact conformation, cost are low.
The purpose of this utility model is achieved in that the coal mine methane catalytic oxidation combustion device with cyclic preheat, comprise weary wind gas handling system, combustion chamber, weary wind gas extraction system and heat regenerative system, reaction tube 5 outer wall round combustion chamber is furnished with electrical heating wire 14; The entrance of described combustion chamber is connected with weary wind gas handling system by pipeline, and the outlet of combustion chamber is connected with the weary wind system of giving vent to anger by pipeline; Described heat regenerative system comprises arm 7, connects entry of combustion chamber and the pipeline between weary wind gas handling system, is connected combustor exit and is connected by arm 7 with the pipeline that weary wind is given vent to anger between system; The second valve 10 that described weary wind gas handling system comprises weary wind inlet tube 11 and is arranged on weary wind inlet tube, the 3rd valve 1 that the described weary wind system of giving vent to anger comprises weary wind outlet 17 and is arranged on weary wind outlet.
Further, described heat regenerative system also comprises the blower fan 6 be arranged on arm and the first valve 8 be arranged on arm.
Further, temperature sensor 12,16 is provided with in described combustion chamber.
Further, described electrical heating wire is arranged round reaction tube 5 outer wall of combustion chamber.
Further, described first valve 8 is arranged near entry of combustion chamber place.
Further, described arm 7 is arranged on the outside of combustion chamber.
Further, described combustion chamber is outside equipped with support 13.
Further, in combustion chamber, catalyst 15 is furnished with along the direction of gas flowing.
Further, described weary wind gas handling system also comprises the first bellows 9 be arranged between weary wind inlet tube and combustion chamber.
Further, described weary wind system of giving vent to anger also comprises the second bellows 2 be arranged between weary wind outlet and combustion chamber.
The utility model has the advantage of:
1, when carrying out preheating, the second valve and the 3rd valve closing, the first valve open, combustion chamber and arm form confined space; Electrical heating wire is started working, and can heat to rapidly the catalyst in combustion chamber in airtight space, thus reach weary wind catalytic oxidation open combustion temperature.
2, the electrical heating wire of this device is arranged in the tube wall exterior of reaction tube, can not on the raw any impact of the gas flow movable property in combustion chamber.
3, blower fan is hankered all serving effect in ignition preheating and backheat simultaneously in advance, enormously simplify the structure of this device.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model is described in further detail, wherein:
Fig. 1 is structural diagrams of the present utility model intention;
In figure: 1, the 3rd valve; 2, bellows; 3, housing; 4, heat-insulation layer; 5, reaction tube; 6, blower fan; 7, arm; 8, the first valve; 9, bellows; 10, the second valve; 11, weary wind inlet tube; 12, temperature sensor; 13, support; 14, electrical heating wire; 15, catalyst; 16, temperature sensor; 17, weary wind outlet.
Detailed description of the invention
Below with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail; Should be appreciated that preferred embodiment only in order to the utility model is described, instead of in order to limit protection domain of the present utility model.
As shown in Figure 1, there is the coal mine methane catalytic oxidation combustion device of cyclic preheat, comprise weary wind gas handling system, combustion chamber, weary wind gas extraction system and heat regenerative system, outside the reaction tube 5 of combustion chamber, be furnished with electrical heating wire 14; The entrance of described combustion chamber is connected with weary wind gas handling system by pipeline, and the outlet of combustion chamber is connected with the weary wind system of giving vent to anger by pipeline; Described heat regenerative system comprises arm 7, connects entry of combustion chamber and the pipeline between weary wind gas handling system, is connected combustor exit and is connected by arm 7 with the pipeline that weary wind is given vent to anger between system; The second valve 10 that described weary wind gas handling system comprises weary wind inlet tube 11 and is arranged on weary wind inlet tube, the 3rd valve 1 that the described weary wind system of giving vent to anger comprises weary wind outlet 17 and is arranged on weary wind outlet.
As the improvement to the present embodiment, described heat regenerative system also comprises the blower fan 6 be arranged on arm and the first valve 8 be arranged on arm; The time of preheating can be shortened by arranging blower fan.
As the improvement to the present embodiment, described electrical heating wire is arranged round the reaction tube outer wall of combustion chamber, adopts this kind of arrangement can not give birth to any impact to the gas flow movable property in combustion chamber.
Temperature sensor 12, temperature sensor 16 is provided with in described combustion chamber; Described first valve 8 is arranged near entry of combustion chamber place; Described arm 7 is arranged on the outside of combustion chamber; Described combustion chamber is outside equipped with support 13; Catalyst 15 is furnished with along the direction of gas flowing in combustion chamber; Described weary wind gas handling system also comprises the first bellows 9 be arranged between weary wind inlet tube and combustion chamber; Described weary wind system of giving vent to anger also comprises the second bellows 2 be arranged between weary wind outlet and combustion chamber.
In combustion chamber, arm, pipeline between connection entry of combustion chamber with weary wind gas handling system, be connected combustor exit and the weary wind pipeline of giving vent to anger between system is outside equipped with heat-insulation layer 4.
This device is when preheating, and blower fan 6, the 3rd valve 1, second valve 10, combustion chamber, electrical heating wire 14 and arm 7 form confined space; 3rd valve 1 and the second valve 10 are closed, and the first valve 8 is opened, and electrical heating wire 14 and blower fan 6 are started working, and can heat to rapidly the catalyst 15 in combustion chamber in airtight space.
After temperature sensor 12 and temperature sensor 16 detect that catalyst temperature reaches weary wind initiation temperature, 3rd valve 1 and the second valve 10 are opened, electrical heating wire 14 quits work, blower fan 6 works on, the high-temperature gas that weary wind produces in catalyst surface reaction, a part enters into residual heat using device by weary wind outlet 17, another part high-temperature gas is under the effect of blower fan 6 and the first valve 8, preheating is carried out to the fresh weary wind of being come in by weary wind inlet tube 11 in the front end being entered into combustion chamber by arm 7, thus continue to react at catalyst surface, continuous operation.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (10)
1. there is the coal mine methane catalytic oxidation combustion device of cyclic preheat, comprise weary wind gas handling system, combustion chamber, weary wind gas extraction system and heat regenerative system, it is characterized in that: outside the reaction tube (5) of combustion chamber, be furnished with electrical heating wire (14); The entrance of described combustion chamber is connected with weary wind gas handling system by pipeline, and the outlet of combustion chamber is connected with the weary wind system of giving vent to anger by pipeline; Described heat regenerative system comprises arm (7), connects entry of combustion chamber and the pipeline between weary wind gas handling system, is connected combustor exit and is connected by arm (7) with the pipeline that weary wind is given vent to anger between system; The second valve (10) that described weary wind gas handling system comprises weary wind inlet tube (11) and is arranged on weary wind inlet tube, the described weary wind system of giving vent to anger comprises weary wind outlet (17) and is arranged on the 3rd valve (1) on weary wind outlet.
2. the coal mine methane catalytic oxidation combustion device with cyclic preheat according to claim 1, is characterized in that: described heat regenerative system also comprises the blower fan (6) be arranged on arm and the first valve (8) be arranged on arm.
3. the coal mine methane catalytic oxidation combustion device with cyclic preheat according to claim 1 and 2, is characterized in that: be provided with temperature sensor (12,16) in described combustion chamber.
4. the coal mine methane catalytic oxidation combustion device with cyclic preheat according to claim 1, is characterized in that: described electrical heating wire is arranged round reaction tube (5) outer wall of combustion chamber.
5. the coal mine methane catalytic oxidation combustion device with cyclic preheat according to claim 2, is characterized in that: described first valve (8) is arranged near entry of combustion chamber place.
6. the coal mine methane catalytic oxidation combustion device with cyclic preheat according to claim 2, is characterized in that: described arm (7) is arranged on the outside of combustion chamber.
7. the coal mine methane catalytic oxidation combustion device with cyclic preheat according to claim 1, is characterized in that: described combustion chamber is outside equipped with support (13).
8. the coal mine methane catalytic oxidation combustion device with cyclic preheat according to claim 1, is characterized in that: in combustion chamber, be furnished with catalyst (15) along the direction of gas flowing.
9. the coal mine methane catalytic oxidation combustion device with cyclic preheat according to claim 1, is characterized in that: described weary wind gas handling system also comprises the first bellows (9) be arranged between weary wind inlet tube and combustion chamber.
10. the coal mine methane catalytic oxidation combustion device with cyclic preheat according to claim 1, is characterized in that: described weary wind system of giving vent to anger also comprises the second bellows (2) be arranged between weary wind outlet and combustion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420505788.7U CN204042926U (en) | 2014-09-03 | 2014-09-03 | There is the coal mine methane catalytic oxidation combustion device of cyclic preheat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420505788.7U CN204042926U (en) | 2014-09-03 | 2014-09-03 | There is the coal mine methane catalytic oxidation combustion device of cyclic preheat |
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| Publication Number | Publication Date |
|---|---|
| CN204042926U true CN204042926U (en) | 2014-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420505788.7U Active CN204042926U (en) | 2014-09-03 | 2014-09-03 | There is the coal mine methane catalytic oxidation combustion device of cyclic preheat |
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| Country | Link |
|---|---|
| CN (1) | CN204042926U (en) |
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2014
- 2014-09-03 CN CN201420505788.7U patent/CN204042926U/en active Active
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