CN203655468U - Low-concentration coal-mine gas comprehensive utilization and emission reduction system - Google Patents
Low-concentration coal-mine gas comprehensive utilization and emission reduction system Download PDFInfo
- Publication number
- CN203655468U CN203655468U CN201420033071.7U CN201420033071U CN203655468U CN 203655468 U CN203655468 U CN 203655468U CN 201420033071 U CN201420033071 U CN 201420033071U CN 203655468 U CN203655468 U CN 203655468U
- Authority
- CN
- China
- Prior art keywords
- gas
- mixer
- weary wind
- flue gas
- generator set
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Wind Motors (AREA)
Abstract
The utility model discloses a low-concentration coal-mine gas comprehensive utilization and emission reduction system. The system comprises a gas pumping device, a ventilating device, a generator set, a pumping gas-ventilation air mixer, a ventilation air-flue gas mixer, an oxidizing device and a steam turbine, wherein the gas pumping device is connected with the generator set connected with a power distribution station, the pumping gas-ventilation air mixer is connected with the gas pumping device and is connected with the ventilating device and the ventilation air-flue gas mixer, the ventilation air-flue gas mixer is connected with the generator set and the oxidizing device connected with the steam turbine, and the stem turbine is connected with the power distribution station. According to the low-concentration coal-mine gas comprehensive utilization and emission reduction system, flue gas and ventilation air at the outlet of a waste heat exchanger are mixed and then are inputted into the oxidizing device, so that the heat quantity in the flue gas can be further recycled, and methane in the flue gas is oxidized through the oxidizing device and then is emptied, so that the environmental pollution can be reduced, and the zero discharge of the coal mine gas can be realized.
Description
Technical field
The utility model relates to low concentration gas and utilizes technical field, particularly a kind of coal mine light concentration mash gas comprehensive utilization and emission-reducing system.
Background technique
Methane content is called low concentration gas lower than 30% gas, according to the difference of utilizing mode, again low concentration gas is divided into methane concentration and is 6% ~ 30% low concentration gas and methane concentration lower than 6% low concentration gas.The low concentration gas that is 6% ~ 30% for methane concentration, the Major Technology of its utilization is to adopt coal mine light concentration mash gas generator set and delivery safety safeguards technique, realizes low-concentration gas power generation.Aspect the direct generation of electricity of low density coal mine gas internal-combustion engine, Sheng Dong group is the company that first hand is successfully developed low-concentration gas power generation unit in the world, can convert concentration to electric energy higher than 6% low concentration gas.
Methane concentration is mine air-lack lower than 6% low concentration gas main source.In prior art, can be used for processing the heating power TFRR burner of coal mine methane and the CFRR catalytic burner of Canadian CANMET energy technology development about what the utilized device of coal mine wind-lack gas had that Sequa company of the U.S. announces in MEGTEC system.Its working principle is to adopt recoverable heat exchanger to realize Energy Transfer and the transfer between gas-solid, the key of this reactor is that the gas of sending in reactor is constantly converted to flow direction, make the gas intensification of absorbing heat in heat retainer, to guarantee certainly maintaining of oxidizing process.CFRR burner is substantially identical with structure with TFRR burner operation principle, and the main distinction is that catalysis counter-current reactor has used oxidation catalyst, has reduced gas and has been oxidized needed temperature.
Existingly utilize technology to have following shortcoming about low concentration gas: in (1) low-concentration gas power generation unit because methyl hydride combustion is insufficient, unit smoke evacuation methane concentration is still more than 2.0%, and the flue-gas temperature of discharging from afterheat heat exchanger outlet is up to 200 ℃, as it is directly emptying, both cause the waste of the energy, also caused environmental pollution; (2) the hot counter flow oxidation device of coal mine wind-lack gas is because ventilation air gas concentration is low, and unstable, and oxidation coating fluctuation of service, even cannot maintain self-operating.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provide a kind of simple in structure, energy utilization rate is high and the coal mine light concentration mash gas of environmentally safe comprehensive utilization and emission-reducing system.
The technological scheme that the utility model addresses the above problem is: a kind of coal mine light concentration mash gas comprehensive utilization and emission-reducing system, comprise gas exhaust device, ventilation plant, generator set, drawing-off gas-weary wind mixer, weary wind-flue gas mixer, oxidation coating and steam turbine, described gas exhaust device is connected with generator set by drawing-off gas delivery line, generator set is connected with power distribution station, the gas of gas exhaust device pump drainage is sent into generator set generating through drawing-off gas delivery line, generator set institute electrogenesis amount is delivered to power distribution station, described drawing-off gas-weary wind mixer is connected with gas exhaust device by blending delivery line, drawing-off gas-weary wind mixer is connected with ventilation plant by weary wind delivery line, drawing-off gas-weary wind mixer is connected with weary wind-flue gas mixer by mixer connecting pipeline, weary wind-flue gas mixer is connected with generator set, described weary wind-flue gas mixer is connected with oxidation coating by mixed gas delivery pipeline, oxidation coating is connected with steam turbine by steam conveying pipeline, steam turbine is connected with power distribution station, the gas of gas exhaust device pump drainage is sent into drawing-off gas-weary wind mixer and in drawing-off gas-weary wind mixer, is carried out blending with the weary wind from ventilation plant through blending delivery line, gas after blending again carries out blending with the flue gas that carrys out self generating sets generation in weary wind-flue gas mixer, in weary wind-flue gas mixer, the mixed gas of blending is sent into oxidation coating through mixed gas delivery pipeline, the steam that oxidation coating produces is sent into steam turbine through steam conveying pipeline and is generated electricity, steam turbine institute electrogenesis amount is delivered to power distribution station.
Above-mentioned coal mine light concentration mash gas comprehensive utilization also comprises afterheat heat exchanger with emission-reducing system, and described afterheat heat exchanger is placed between generator set and weary wind-flue gas mixer, and the flue gas that generator set produces is sent in weary wind-flue gas mixer after afterheat heat exchanger.
The beneficial effects of the utility model are:
1) the utility model carries out part drawing-off gas and weary wind to send into oxidation coating after blending, has improved ventilation air gas concentration, is conducive to the continuous and steady operation of oxidation coating;
2) the utility model by afterheat heat exchanger export flue gas mix with weary wind after input oxidation coating, heat in flue gas is further recycled, and in flue gas, methane is emptying again after oxidation coating oxidation, has reduced environmental pollution, thereby has realized the zero-emission of coal mine gas.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in Figure 1, the utility model comprises gas exhaust device 1, ventilation plant 2, generator set 3, afterheat heat exchanger 4, drawing-off gas-weary wind mixer 5, weary wind-flue gas mixer 6, oxidation coating 7, steam turbine 8, power distribution station 9, drawing-off gas delivery line 10, flue gas delivery pipe road 11, gas exhaust piping 12, weary wind delivery line 13, blending delivery line 14, mixer connecting pipeline 15, mixed gas delivery pipeline 16, steam conveying pipeline 17, steam turbine power transmission line 18 and power transmission line 19, described gas exhaust device 1 is connected with generator set 3 by drawing-off gas delivery line 10, gas exhaust device 1 is connected with drawing-off gas-weary wind mixer 5 by blending delivery line 14, described ventilation plant 2 is connected with drawing-off gas-weary wind mixer 5 by weary wind delivery line 13, described generator set 3 is connected with power distribution station 9 by power transmission line 19, generator set 3 is connected with afterheat heat exchanger 4 by flue gas delivery pipe road 11, afterheat heat exchanger 4 is connected with weary wind-flue gas mixer 6 by gas exhaust piping 12, drawing-off gas-weary wind mixer 5 is connected with weary wind-flue gas mixer 6 by mixer connecting pipeline 15, weary wind-flue gas mixer 6 is connected with oxidation coating 7 by mixed gas delivery pipeline 16, oxidation coating 7 is connected with steam turbine 8 by steam conveying pipeline 17, steam turbine 8 is connected with power distribution station 9 by steam turbine power transmission line 18.
Working principle of the present utility model is as follows: a gas part for 1 pump drainage of gas exhaust device is sent into generator set 3 through drawing-off gas delivery line 10, another part is through blending delivery line 14 and in drawing-off gas-weary wind mixer 5, carry out blending by corresponding proportion from the weary wind of ventilation plant 2, and ventilation air gas concentration is improved; Generator set 3 high-temperature flue gas that produces is sent into afterheat heat exchanger 4 to its heat recovery and utilization through flue gas delivery pipe road 11, the flue gas that afterheat heat exchanger 4 is discharged is sent in weary wind-flue gas mixer 6 through gas exhaust piping 12, with next gas blending again to drawing-off gas-weary wind mixer 5, mixed gas temperature and gas density are further improved; Mixed gas is sent into oxidation coating 7 through mixed gas delivery pipeline 16, the high temperature and high pressure steam that oxidation coating 7 is produced is delivered to steam turbine 8 for generating through steam conveying pipeline 17, and 8 electrogenesis of steam turbine and generator set 3 generate electricity and be delivered to power distribution station 9 through steam turbine power transmission line 18 and power transmission line 19 respectively.
Drawing-off gas and weary wind are carried out blending by the utility model, improved the concentration of ventilation air gas, is conducive to the continuous and steady operation of oxidation coating 7; Simultaneously, the high-temperature flue gas that generator set 3 produces carries out heat recovery through afterheat heat exchanger 4, input oxidation coating 7 after allowing again it mix with weary wind, heat in flue gas is further recycled, and in flue gas, methane is emptying again after oxidation coating oxidation, reduce environmental pollution, thereby realized the zero-emission of coal mine gas.
Above-described is only preferred implementation of the present utility model; should be understood that; for a person skilled in the art; do not departing under the prerequisite of the utility model structure; can also make some distortion and improvement; these distortion and improvement can not affect the effect that the utility model is implemented, and should be considered as protection domain of the present utility model.
Claims (2)
1. a coal mine light concentration mash gas fully utilizes and emission-reducing system, it is characterized in that: comprise gas exhaust device, ventilation plant, generator set, drawing-off gas-weary wind mixer, weary wind-flue gas mixer, oxidation coating and steam turbine, described gas exhaust device is connected with generator set by drawing-off gas delivery line, generator set is connected with power distribution station, the gas of gas exhaust device pump drainage is sent into generator set generating through drawing-off gas delivery line, generator set institute electrogenesis amount is delivered to power distribution station, described drawing-off gas-weary wind mixer is connected with gas exhaust device by blending delivery line, drawing-off gas-weary wind mixer is connected with ventilation plant by weary wind delivery line, drawing-off gas-weary wind mixer is connected with weary wind-flue gas mixer by mixer connecting pipeline, weary wind-flue gas mixer is connected with generator set, described weary wind-flue gas mixer is connected with oxidation coating by mixed gas delivery pipeline, oxidation coating is connected with steam turbine by steam conveying pipeline, steam turbine is connected with power distribution station, the gas of gas exhaust device pump drainage is sent into drawing-off gas-weary wind mixer and in drawing-off gas-weary wind mixer, is carried out blending with the weary wind from ventilation plant through blending delivery line, gas after blending again carries out blending with the flue gas that carrys out self generating sets generation in weary wind-flue gas mixer, in weary wind-flue gas mixer, the mixed gas of blending is sent into oxidation coating through mixed gas delivery pipeline, the steam that oxidation coating produces is sent into steam turbine through steam conveying pipeline and is generated electricity, steam turbine institute electrogenesis amount is delivered to power distribution station.
2. coal mine light concentration mash gas comprehensive utilization according to claim 1 and emission-reducing system, it is characterized in that: also comprise afterheat heat exchanger, described afterheat heat exchanger is placed between generator set and weary wind-flue gas mixer, and the flue gas that generator set produces is sent in weary wind-flue gas mixer after afterheat heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420033071.7U CN203655468U (en) | 2014-01-20 | 2014-01-20 | Low-concentration coal-mine gas comprehensive utilization and emission reduction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420033071.7U CN203655468U (en) | 2014-01-20 | 2014-01-20 | Low-concentration coal-mine gas comprehensive utilization and emission reduction system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203655468U true CN203655468U (en) | 2014-06-18 |
Family
ID=50921865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420033071.7U Expired - Fee Related CN203655468U (en) | 2014-01-20 | 2014-01-20 | Low-concentration coal-mine gas comprehensive utilization and emission reduction system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203655468U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405930A (en) * | 2014-11-06 | 2015-03-11 | 中国科学院工程热物理研究所 | Mechanical linkage cut-off valve |
| CN104667718A (en) * | 2015-02-07 | 2015-06-03 | 广州朗谱新能源科技有限公司 | Gas oxidation device and operating method thereof |
| CN105588123A (en) * | 2016-03-14 | 2016-05-18 | 杭州锅炉集团股份有限公司 | Waste heat boiler of preposition ultra-low concentration methane gas oxidation device |
| CN105972600A (en) * | 2016-05-23 | 2016-09-28 | 中国矿业大学 | Low-concentration gas and coal mixed combustion system |
| CN107143420A (en) * | 2017-05-09 | 2017-09-08 | 阮秀梅 | A kind of coal mine gas integrated application device |
| CN109372601A (en) * | 2018-08-03 | 2019-02-22 | 中国大唐集团科学技术研究院有限公司 | A kind of Distributed Integration energy supplying system recycling ventilating gas |
| CN110985202A (en) * | 2019-11-24 | 2020-04-10 | 中煤科工集团重庆研究院有限公司 | Cold, heat and electricity triple supply system based on low-concentration gas |
| CN111121067A (en) * | 2019-11-24 | 2020-05-08 | 中煤科工集团重庆研究院有限公司 | Method for utilizing low-concentration gas |
| CN114198136A (en) * | 2021-11-09 | 2022-03-18 | 中节能工业节能有限公司 | Zero-carbon emission method for low-concentration gas in coal mine |
-
2014
- 2014-01-20 CN CN201420033071.7U patent/CN203655468U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405930A (en) * | 2014-11-06 | 2015-03-11 | 中国科学院工程热物理研究所 | Mechanical linkage cut-off valve |
| CN104405930B (en) * | 2014-11-06 | 2017-01-25 | 中国科学院工程热物理研究所 | Mechanical linkage cut-off valve |
| CN104667718A (en) * | 2015-02-07 | 2015-06-03 | 广州朗谱新能源科技有限公司 | Gas oxidation device and operating method thereof |
| CN105588123A (en) * | 2016-03-14 | 2016-05-18 | 杭州锅炉集团股份有限公司 | Waste heat boiler of preposition ultra-low concentration methane gas oxidation device |
| CN105972600A (en) * | 2016-05-23 | 2016-09-28 | 中国矿业大学 | Low-concentration gas and coal mixed combustion system |
| CN105972600B (en) * | 2016-05-23 | 2018-07-31 | 中国矿业大学 | A kind of low concentration gas and coal for mixing combustion system |
| CN107143420A (en) * | 2017-05-09 | 2017-09-08 | 阮秀梅 | A kind of coal mine gas integrated application device |
| CN109372601A (en) * | 2018-08-03 | 2019-02-22 | 中国大唐集团科学技术研究院有限公司 | A kind of Distributed Integration energy supplying system recycling ventilating gas |
| CN110985202A (en) * | 2019-11-24 | 2020-04-10 | 中煤科工集团重庆研究院有限公司 | Cold, heat and electricity triple supply system based on low-concentration gas |
| CN111121067A (en) * | 2019-11-24 | 2020-05-08 | 中煤科工集团重庆研究院有限公司 | Method for utilizing low-concentration gas |
| CN114198136A (en) * | 2021-11-09 | 2022-03-18 | 中节能工业节能有限公司 | Zero-carbon emission method for low-concentration gas in coal mine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203655468U (en) | Low-concentration coal-mine gas comprehensive utilization and emission reduction system | |
| CN102012167B (en) | System and method for power generating by jointly recovering waste heat of flue gas of sintering machine and exhaust gas of cooling machine | |
| CN201852474U (en) | Combined recovery and power generation system for waste heat in flue gas of sintering machine and waste gas of cooling machine | |
| CN202732012U (en) | Ventilation air methane oxidization power generation system | |
| CN103471408B (en) | A kind of heating furnace high-temperature smoke waste heat utilization system and method | |
| CN202868649U (en) | Heat accumulating type catalytic oxidation device | |
| CN103277130B (en) | Mine area distribution type poly-generation energy supplying system with coal mine gas emission close to zero | |
| CN101576097B (en) | Method and system for pumping and processing tail gas of polyester device by jet ejector | |
| CN203271799U (en) | Mine lot distributing type coal mine gas near-zero emission poly-generation energy supply system | |
| CN202125937U (en) | System for comprehensively recycling boiler energy in tobacco industry | |
| CN210303176U (en) | Gas power generation non-combined cycle generating set flue gas denitration system | |
| CN103835747B (en) | A kind of system and method for low-concentration gas comprehensive utilization | |
| CN203098053U (en) | Chemical hydrogen-rich gas collecting and utilizing system | |
| CN105202537A (en) | Combustion system and combustion method | |
| CN103234213B (en) | A kind of method of oxygen-enriched combusting Btu utilization and device | |
| CN206037068U (en) | Combustion system is retrieved to dirty water station marsh gas | |
| CN209885427U (en) | System for denitration of cement kiln tail flue gas and waste heat recovery | |
| CN204345610U (en) | A kind of high efficiency burnt gas formula steam superheating device | |
| CN207865437U (en) | A kind of storage oxygen combustion energy saving emission-reducing system using clean energy resource electric power | |
| CN201666738U (en) | Pre-heated one section waste flue gas afterheat utilizing system of pellet grate machine | |
| CN218871732U (en) | System for low temperature coke oven flue gas desulfurization denitration and waste heat utilization | |
| CN201513869U (en) | Float glass melting furnace secondary waste heat batch heating device | |
| CN103196130B (en) | Method and device for gradient utilization of heat of oxygen-enriched combustion unit | |
| CN217057676U (en) | Low-concentration gas heating system | |
| CN1240156C (en) | Coal gasification two stage high temperature fuel battery electric generating system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20170120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |