CN204225938U - Low-concentration gas heat-storage oxidation combined cooling, heating and power supply system - Google Patents
Low-concentration gas heat-storage oxidation combined cooling, heating and power supply system Download PDFInfo
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- CN204225938U CN204225938U CN201420724641.7U CN201420724641U CN204225938U CN 204225938 U CN204225938 U CN 204225938U CN 201420724641 U CN201420724641 U CN 201420724641U CN 204225938 U CN204225938 U CN 204225938U
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- heating
- low
- concentration gas
- regenerative oxidation
- low concentration
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- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 47
- 230000003647 oxidation Effects 0.000 title claims abstract description 45
- 238000010438 heat treatment Methods 0.000 title claims abstract description 32
- 238000001816 cooling Methods 0.000 title claims abstract description 17
- 238000005338 heat storage Methods 0.000 title abstract 5
- 239000007789 gas Substances 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000003546 flue gas Substances 0.000 claims abstract description 12
- 230000005611 electricity Effects 0.000 claims abstract description 5
- 230000001172 regenerating effect Effects 0.000 claims description 30
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims description 16
- 238000010248 power generation Methods 0.000 claims description 14
- 238000005057 refrigeration Methods 0.000 claims description 11
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 230000032258 transport Effects 0.000 claims description 3
- 239000002918 waste heat Substances 0.000 abstract description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 239000006200 vaporizer Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
Classifications
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The utility model discloses a low-concentration gas heat-storage oxidation combined cooling, heating and power system, which comprises a gas supply subsystem for generating superheated steam and a steam turbine generator set for generating electricity by utilizing the energy of the superheated steam, wherein the gas supply subsystem comprises a heat-storage oxidation device and a waste heat boiler, low-concentration gas passes through the heat-storage oxidation device to form high-temperature flue gas, and the high-temperature flue gas passes through the waste heat boiler to form superheated steam; the heat storage oxidation device is a thermal countercurrent oxidation device; the combined supply system also comprises a heating subsystem and a refrigerating subsystem, and low-pressure steam generated by the steam turbine generator set respectively flows into the heating subsystem to generate heating and flows into the refrigerating subsystem to generate low-temperature water; the system realizes effective oxidation of low-concentration gas, realizes cascade utilization of waste heat, and greatly improves the heat energy utilization rate of the system.
Description
Technical field
The utility model relates to a kind of low concentration gas oxidation processes and bootstrap system, particularly a kind of low concentration gas regenerative oxidation cooling heating and power generation system.
Background technique
According to statistics, coal mine gas drainage amount in 2013 is 126 billion cubic meters, utilization is 43 billion cubic meters, and utilization ratio is 34.1%.That is, China in 2013 has the coal mine gas of 83 billion cubic meters to be utilized.Professional visitors analyzes, the main cause of this situation is caused to be, the gas density of major part mine extraction is lower, concentration is increasing lower than the gas accounting of 8%, it can not civilian, internal-combustion engine generating can not be used for, and gas is purified because its factor such as dangerous and uneconomical could not be widely applied.
Coal mine to ventilate mash gas also known as ventilation air gas, in ventilation air gas methane content low and lack effectively utilize means, normally adopt directly ventilation air gas is entered air.According to relevant statistics, the methane content entered in air by weary wind for 2008 has reached 161 billion cubic meters.
Research shows, methane greenhouse effect are about 21 times of carbon dioxide, extremely strong to environmental destruction.Therefore, low concentration gas is recycled and is had energy saving standard double meaning.
Model utility content
In view of this, the purpose of this utility model is to provide a kind of low concentration gas regenerative oxidation cooling heating and power generation system, and this system can realize the efficient oxidation to low concentration gas, and realizes cascade utilization to waste heat, improves the heat utilization rate of system.
Low concentration gas regenerative oxidation cooling heating and power generation system of the present utility model, comprise for generation of superheated vapor air feed subtense angle and utilize superheated vapor energy to carry out the turbine LP rotors generated electricity, described air feed subtense angle comprises regenerative oxidation device and exhaust heat boiler, low concentration gas forms high-temperature flue gas by described regenerative oxidation device, and high-temperature flue gas forms superheated vapor by described exhaust heat boiler; Described regenerative oxidation device is hot reverse-flow oxidation coating; Combination supply system also comprises heating subtense angle and refrigeration subsystem, and the low pressure steam that described turbine LP rotors produces flows into described heating subtense angle respectively and produces heating installation and flow into described refrigeration subsystem generation low temperature water.
Further, described refrigeration subsystem comprises lithium bromide absorption refrigerating set.
Further, the low-temperature flue gas that described regenerative oxidation device and exhaust heat boiler produce all is discharged by chimney.
Further, described air feed subtense angle also comprises the blower fan for low concentration gas being delivered to regenerative oxidation device.
Further, described air feed subtense angle also comprises the water pump for water being delivered to exhaust heat boiler.
Further, the exhaust steam end of described turbine LP rotors is connected with the vapour condenser for turbine discharge being condensed into water, and the condensed water of described vapour condenser transports to exhaust heat boiler by described water pump.
The beneficial effects of the utility model: first, low concentration gas regenerative oxidation cooling heating and power generation system of the present utility model, utilize hot counter flow oxidation technology, can realize to concentration be 1% low concentration gas efficient oxidation, for concentration higher than 1% gas can with air or weary wind blending after enter this system process; The second, low concentration gas regenerative oxidation cooling heating and power generation system of the present utility model utilizes high-grade Steam Actuation turbine LP rotors to generate electricity, and extracts low pressure steam from turbine LP rotors, and a part is used for heating, and a part is used for refrigeration.This system achieves the efficient oxidation to low concentration gas, and achieves cascade utilization to waste heat, substantially increases the heat utilization rate of system.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is structural representation sketch of the present utility model.
Embodiment
Fig. 1 is structural representation sketch of the present utility model, wherein arrow is each direction of flow, as shown in the figure: the low concentration gas regenerative oxidation cooling heating and power generation system of the present embodiment, comprise for generation of superheated vapor air feed subtense angle and utilize superheated vapor energy to carry out the turbine LP rotors 2 generated electricity, described air feed subtense angle comprises regenerative oxidation device 11 and exhaust heat boiler 12, low concentration gas forms high-temperature flue gas by described regenerative oxidation device 11, and high-temperature flue gas forms superheated vapor by described exhaust heat boiler 12, described regenerative oxidation device 11 is hot reverse-flow oxidation coating, and low concentration gas can be made at high temperature oxidation reaction to occur, combination supply system also comprises heating subtense angle and refrigeration subsystem, and the low pressure steam that described turbine LP rotors 2 produces flows into described heating subtense angle respectively and produces heating installation and flow into described refrigeration subsystem generation low temperature water, in the present embodiment, described refrigeration subsystem comprises lithium bromide absorption refrigerating set 3, the low-temperature flue gas that described regenerative oxidation device 11 and exhaust heat boiler 12 produce all is discharged by chimney 4, described air feed subtense angle also comprises the blower fan 13 for low concentration gas being delivered to regenerative oxidation device 11, described air feed subtense angle also comprises the water pump 14 for water being delivered to exhaust heat boiler 12, the exhaust steam end of described turbine LP rotors 2 is connected with the vapour condenser 5 for turbine discharge being condensed into water, and the condensed water of described vapour condenser 5 transports to exhaust heat boiler 12 by described water pump 14.
The technological process of the low concentration gas regenerative oxidation cooling heating and power generation system of the present embodiment is as follows:
1) low concentration gas is delivered to the regenerative oxidation device 11 of hot counter flow type structure through blower fan 13, oxidation reaction is there is under high temperature condition in device, and release heat, low-temperature flue gas is discharged from chimney 4, is sent to exhaust heat boiler 12 after a part of high-temperature flue gas is drawn out of;
2) high-temperature flue gas is when exhaust heat boiler 12, heating water generate superheated vapor, after flue gas cool-down from chimney 4 discharged to air, superheated vapor is transported to turbine LP rotors 2;
3) superheated vapor does work in turbine LP rotors 2, and temperature and pressure all reduces, and steam discharge leads to vapour condenser 5; Steam discharge becomes condensed water after entering vapour condenser 5, is extracted and reenters exhaust heat boiler 12, recycle by feed water pump 14; Extract part low pressure steam from steam turbine low-pressure section, be sent to heating user or lithium bromide absorption refrigerating set 3;
4) low pressure steam is as the heating agent of lithium bromide absorption refrigerating set 3, and heating lithium bromide water solution, makes water vapor in solution; Along with the continuous vaporization of water, the lithium bromide water solution concentration in generator constantly raises, and enters adsorber; Water vapour enters condenser, condenses after the cooling water temperature be condensed in device, becomes the liquid water of high pressure low temperature; When the water in condenser enters vaporizer by throttle valve, rapid expansion and vaporizing, and in vaporescence a large amount of heat absorbing chilled water in vaporizer, thus reach the object of cooling refrigeration; In the process, low temperature water steam enters adsorber, and absorbed by the lithium bromide water solution in adsorber, solution concentration progressively reduces, then sends generator back to by recycle pump, completes whole circulation.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (6)
1. a low concentration gas regenerative oxidation cooling heating and power generation system, comprise for generation of superheated vapor air feed subtense angle and utilize superheated vapor energy to carry out the turbine LP rotors generated electricity, it is characterized in that: described air feed subtense angle comprises regenerative oxidation device and exhaust heat boiler, low concentration gas forms high-temperature flue gas by described regenerative oxidation device, and high-temperature flue gas forms superheated vapor by described exhaust heat boiler; Described regenerative oxidation device is hot reverse-flow oxidation coating; Combination supply system also comprises heating subtense angle and refrigeration subsystem, and the low pressure steam that described turbine LP rotors produces flows into described heating subtense angle respectively and produces heating installation and flow into described refrigeration subsystem generation low temperature water.
2. low concentration gas regenerative oxidation cooling heating and power generation system according to claim 1, is characterized in that: described refrigeration subsystem comprises lithium bromide absorption refrigerating set.
3. low concentration gas regenerative oxidation cooling heating and power generation system according to claim 1, is characterized in that: the low-temperature flue gas that described regenerative oxidation device and exhaust heat boiler produce all is discharged by chimney.
4. low concentration gas regenerative oxidation cooling heating and power generation system according to claim 1, is characterized in that: described air feed subtense angle also comprises the blower fan for low concentration gas being delivered to regenerative oxidation device.
5. the low concentration gas regenerative oxidation cooling heating and power generation system according to any one of Claims 1-4, is characterized in that: described air feed subtense angle also comprises the water pump for water being delivered to exhaust heat boiler.
6. low concentration gas regenerative oxidation cooling heating and power generation system according to claim 5, it is characterized in that: the exhaust steam end of described turbine LP rotors is connected with the vapour condenser for turbine discharge being condensed into water, and the condensed water of described vapour condenser transports to exhaust heat boiler by described water pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420724641.7U CN204225938U (en) | 2014-11-26 | 2014-11-26 | Low-concentration gas heat-storage oxidation combined cooling, heating and power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420724641.7U CN204225938U (en) | 2014-11-26 | 2014-11-26 | Low-concentration gas heat-storage oxidation combined cooling, heating and power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204225938U true CN204225938U (en) | 2015-03-25 |
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| CN201420724641.7U Active CN204225938U (en) | 2014-11-26 | 2014-11-26 | Low-concentration gas heat-storage oxidation combined cooling, heating and power supply system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134316A (en) * | 2015-08-19 | 2015-12-09 | 安徽新宁能源科技有限公司 | Lithium bromide refrigeration and power generation system |
| CN105569746A (en) * | 2016-01-28 | 2016-05-11 | 上海电力股份有限公司 | Ultralow-concentration gas oxidation power generation and coal slime drying, refrigeration and heating integration system |
| CN107014104A (en) * | 2017-04-13 | 2017-08-04 | 中煤科工集团重庆研究院有限公司 | Waste heat cooling and mechanical combined dewatering device |
| CN108916851A (en) * | 2018-08-01 | 2018-11-30 | 贵阳正升科技有限公司 | A kind of gas generating residual heat efficient utilization device and its technique |
| CN110174021A (en) * | 2019-05-28 | 2019-08-27 | 浙江亿扬能源科技有限公司 | A kind of waste heat comprehensive utilization system and operation method for realizing the drying of coal mine wet stock using low concentration 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 |
| CN113217979A (en) * | 2021-05-08 | 2021-08-06 | 中煤科工集团重庆研究院有限公司 | Multi-state coupling peak regulation intelligent control system for gas heat accumulation oxidation, electric auxiliary heat and molten salt heat accumulation |
-
2014
- 2014-11-26 CN CN201420724641.7U patent/CN204225938U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134316A (en) * | 2015-08-19 | 2015-12-09 | 安徽新宁能源科技有限公司 | Lithium bromide refrigeration and power generation system |
| CN105569746A (en) * | 2016-01-28 | 2016-05-11 | 上海电力股份有限公司 | Ultralow-concentration gas oxidation power generation and coal slime drying, refrigeration and heating integration system |
| CN107014104A (en) * | 2017-04-13 | 2017-08-04 | 中煤科工集团重庆研究院有限公司 | Waste heat cooling and mechanical combined dewatering device |
| CN108916851A (en) * | 2018-08-01 | 2018-11-30 | 贵阳正升科技有限公司 | A kind of gas generating residual heat efficient utilization device and its technique |
| CN110174021A (en) * | 2019-05-28 | 2019-08-27 | 浙江亿扬能源科技有限公司 | A kind of waste heat comprehensive utilization system and operation method for realizing the drying of coal mine wet stock using low concentration 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 |
| CN113217979A (en) * | 2021-05-08 | 2021-08-06 | 中煤科工集团重庆研究院有限公司 | Multi-state coupling peak regulation intelligent control system for gas heat accumulation oxidation, electric auxiliary heat and molten salt heat accumulation |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |