CN107631517A - A kind of flue gas flashes back formula direct combustion type heat pump - Google Patents
A kind of flue gas flashes back formula direct combustion type heat pump Download PDFInfo
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- CN107631517A CN107631517A CN201710796968.3A CN201710796968A CN107631517A CN 107631517 A CN107631517 A CN 107631517A CN 201710796968 A CN201710796968 A CN 201710796968A CN 107631517 A CN107631517 A CN 107631517A
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- heat pump
- burner
- gas
- pipeline
- absorption heat
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Abstract
Flashed back formula direct combustion type heat pump the invention provides a kind of flue gas, wherein, including absorption heat pump burner hearth, burner, fuel gas pipeline, air pipe line, gas exhaust piping, smoke backflow pipeline and valve；The fuel gas pipeline and the air pipe line connect with the burner, for combustion gas and air to be delivered in burner；The burner connects the air inlet of the absorption heat pump burner hearth, and the gas outlet of the absorption heat pump burner hearth is provided with gas exhaust piping；One end of the smoke backflow pipeline connects with the gas exhaust piping, and the other end connects with the air pipe line, for making the smoke backflow in the absorption heat pump into the burner.The present invention participates in flashing back using part low-temperature flue gas, causes burning situation oxygen deprivation in burner, flame temperature is reduced to below NO_x formation temperature, plays a part of preventing NO_x formation, so as to reduce the content of nitrogen oxides in smoke evacuation.
Description
Technical field
The present invention relates to a kind of heat pump, specifically a kind of flue gas flashes back formula direct combustion type heat pump.
Background technology
In recent years, China Middle Eastern is absorbed in serious haze and polluting weather, in September, 2013, State Council's issue
《Air contaminant treatment action plan》It is proposed will protrude heavily contaminated Urban Governance, strengthen reduction and management and control to all kinds of pollution sources,
Prominent Energy restructuring, complete interim pressure and subtract coal task, vigorously implement clean energy resource replacement, prominent winter heating period is dirty
Contaminate management and control.Therefore, " coal the changes gas " engineering removed coal-burning boiler and use gas fired-boiler instead is carried out heat supply center in many cities.Naturally
For gas compared with every contamination index after fired coal combustion, the pollution index of sulfide is substantially zeroed, and the index of nitride only has coal
50%, as 150 ㎎/m3Left and right.Therefore, there is the incomparable advantage of other resources using natural gas as the energy.But
It is, for environmental protection, the pollutant NO of priority control after combustion of natural gasxDischarge still reaches to pre- less than national a kind of area
30 ㎎ of discharge index/m of phase3.Therefore while research and utilization Direct fired absorption heat pump, direct combustion type suction how is effectively reduced
NO in the smoke evacuation of receipts formula heat pump generatorxContent, make up to air contaminant treatment and discharge newest index, have highly important
Meaning.
The content of the invention
Flashed back formula direct combustion type heat pump it is an object of the invention to provide a kind of flue gas, pollute environment to solve existing heat pump
Problem.
What the present invention was realized in：A kind of flue gas flashes back formula direct combustion type heat pump, wherein, including absorption heat pump, burning
Device, fuel gas pipeline, air pipe line, gas exhaust piping, smoke backflow pipeline and valve；
The fuel gas pipeline and the air pipe line connect with the burner, for combustion gas and air to be delivered into burning
In device；The burner connects the air inlet of the absorption heat pump, and the gas outlet of the absorption heat pump is provided with exhaust
Pipeline；
One end of the smoke backflow pipeline connects with the gas exhaust piping, and the other end connects with the air pipe line, uses
In making the smoke backflow in the absorption heat pump into the burner.
Preferably, it is provided with regulating valve on the fuel gas pipeline, the air pipe line and the smoke backflow pipeline.
Preferably, flue gas is provided with the absorption heat pump burner hearth to flash back structure.
Using above-mentioned technical proposal, the present invention participates in flashing back using part low-temperature flue gas, causes burning situation in burner
Oxygen deprivation, flame temperature is reduced to below NO_x formation temperature, play a part of preventing NO_x formation, so as to reduce
The content of nitrogen oxides in smoke evacuation.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the present invention.
In figure：1-absorption heat pump burner hearth, 2-burner, 3-fuel gas pipeline, 4-air pipe line, 5-gas exhaust piping,
6-smoke backflow pipeline.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only the section Example of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
As shown in figure 1, flashed back formula direct combustion type heat pump, including absorption heat pump burner hearth 1 the invention provides a kind of flue gas, combustion
Burner 2, fuel gas pipeline 3 and air pipe line 4 connect burner 2, and combustion gas and air are passed through in burner.In absorption heat pump stove
Gas exhaust piping 5 is provided with thorax 1.The present invention is provided with smoke backflow pipeline 6 on gas exhaust piping 5, smoke backflow pipeline 6 it is another
One end connects with air pipe line 4, makes the smoke backflow in the absorption heat pump burner hearth into the burner.In absorption type heat
Flue gas is provided with pump burner hearth to flash back structure.Regulating valve is provided with fuel gas pipeline, air pipe line and smoke backflow pipeline.
Combustion gas enters burner from fuel gas pipeline, by the part of the fresh air from air pipe line and smoke backflow pipeline
The mixed gas of refluxed cryogenic flue gas is combustion-supporting, is burnt in absorption heat pump, and the flue gas in partial hearth is into gas exhaust piping
Return before, participate in burning again, the working medium lithium-bromide solution in heating furnace body is real by the heating of lithium-bromide solution, circulation
Existing heat pump functional.The height of amount of nitrogen oxides in gas exhaust piping is low with being flashed back in smoke backflow pipeline and burner hearth
The number of warm flue gas content is relevant, can be adjusted by the regulating valve on each pipeline.
Because oxygen content reduces in mixed gas,Content increase so that burner hearth flame temperature decreases, up to not
To NOxGeneration temperature.And oxygen atom and nitrogen molecular react required activation energy ratio elemental oxygen and reacted with combustible component in fuel
Required activation energy is big, thus oxygen atom fail with largelyReaction generation NO, but with very tiring out composition in fuel
Reaction, generates substantial amounts of intermediate product HCN, and oxygen atom so with HCN preferential reactions, generation、CO2And H2O。
It can thus be seen that under anoxic conditions, due to flame temperature do not reach oxygen atom withThe temperature of reaction, it is impossible to
NO is generated, can be generated on the contrary with HCN preferential reactions, andIt is more and more, NO can be generatedxNO it is fewer and fewer, cause to arrange
NO in cigarettexContent be greatly lowered.
The present invention can make the NO in smoke evacuationxContent is by 150 ㎎/m330 ㎎/m is down in left and right3Hereinafter, a kind of ground is complied fully with
The fume emission index request in area, environmental benefit are notable.The present invention can be saved to make smoke evacuation up to standard, and what is set in original system is de-
Pin assembly.System architecture simplifies, and substantially reduces engineering one-time investment and operating cost, and huge economic effect is created for user
Benefit.
Claims (3)
- The formula direct combustion type heat pump 1. a kind of flue gas flashes back, it is characterized in that, including absorption heat pump burner hearth, burner, fuel gas pipeline, sky Air pipe, gas exhaust piping, smoke backflow pipeline and valve；The fuel gas pipeline and the air pipe line connect with the burner, for combustion gas and air to be delivered into burner In；The burner connects the air inlet of the absorption heat pump burner hearth, is set in the gas outlet of the absorption heat pump burner hearth There is gas exhaust piping；One end of the smoke backflow pipeline connects with the gas exhaust piping, and the other end connects with the air pipe line, for making Smoke backflow in the absorption heat pump is into the burner.
- The formula direct combustion type heat pump 2. a kind of flue gas according to claim 1 flashes back, it is characterized in that, in the fuel gas pipeline, institute State and be provided with regulating valve on air pipe line and the smoke backflow pipeline.
- The formula direct combustion type heat pump 3. a kind of flue gas according to claim 1 flashes back, it is characterized in that, in the absorption heat pump stove Flue gas is provided with thorax to flash back structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710796968.3A CN107631517A (en) | 2017-09-06 | 2017-09-06 | A kind of flue gas flashes back formula direct combustion type heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710796968.3A CN107631517A (en) | 2017-09-06 | 2017-09-06 | A kind of flue gas flashes back formula direct combustion type heat pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107631517A true CN107631517A (en) | 2018-01-26 |
Family
ID=61100101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710796968.3A Pending CN107631517A (en) | 2017-09-06 | 2017-09-06 | A kind of flue gas flashes back formula direct combustion type heat pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107631517A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10300028A (en) * | 1997-05-02 | 1998-11-13 | Mitsubishi Heavy Ind Ltd | Facility for gasifying fuel gas containing carbon and burner for gasification furnace |
| CN2510763Y (en) * | 2001-11-30 | 2002-09-11 | 清华大学 | Absorbing type heat-pump heating device utilizing smoke after-heat from gas-steam circulating power-and-heating plant |
| CN1536296A (en) * | 2003-04-11 | 2004-10-13 | 清华大学 | Heat pump type heat and electircity combined supply system by using as turbine as power |
| CN201203297Y (en) * | 2008-05-04 | 2009-03-04 | 东华大学 | Solar auxiliary direct combustion type cold and hot water machine unit |
| CN105387458A (en) * | 2015-12-04 | 2016-03-09 | 重庆川然节能技术有限公司 | System and method for reducing emission of oxynitride of combustion equipment |
| CN105423289A (en) * | 2015-12-31 | 2016-03-23 | 重庆川然节能技术有限公司 | Condensation-resistant system and method of flue gas outer circulation combustion equipment |
| CN106052377A (en) * | 2016-07-27 | 2016-10-26 | 北京神雾环境能源科技集团股份有限公司 | Fuel gas cupola furnace |
-
2017
- 2017-09-06 CN CN201710796968.3A patent/CN107631517A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10300028A (en) * | 1997-05-02 | 1998-11-13 | Mitsubishi Heavy Ind Ltd | Facility for gasifying fuel gas containing carbon and burner for gasification furnace |
| CN2510763Y (en) * | 2001-11-30 | 2002-09-11 | 清华大学 | Absorbing type heat-pump heating device utilizing smoke after-heat from gas-steam circulating power-and-heating plant |
| CN1536296A (en) * | 2003-04-11 | 2004-10-13 | 清华大学 | Heat pump type heat and electircity combined supply system by using as turbine as power |
| CN201203297Y (en) * | 2008-05-04 | 2009-03-04 | 东华大学 | Solar auxiliary direct combustion type cold and hot water machine unit |
| CN105387458A (en) * | 2015-12-04 | 2016-03-09 | 重庆川然节能技术有限公司 | System and method for reducing emission of oxynitride of combustion equipment |
| CN105423289A (en) * | 2015-12-31 | 2016-03-23 | 重庆川然节能技术有限公司 | Condensation-resistant system and method of flue gas outer circulation combustion equipment |
| CN106052377A (en) * | 2016-07-27 | 2016-10-26 | 北京神雾环境能源科技集团股份有限公司 | Fuel gas cupola furnace |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180126 |