CN101505120A - Mine ventilation counter flow oxidation thermo-electric generation system - Google Patents
Mine ventilation counter flow oxidation thermo-electric generation system Download PDFInfo
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- CN101505120A CN101505120A CNA2009100106128A CN200910010612A CN101505120A CN 101505120 A CN101505120 A CN 101505120A CN A2009100106128 A CNA2009100106128 A CN A2009100106128A CN 200910010612 A CN200910010612 A CN 200910010612A CN 101505120 A CN101505120 A CN 101505120A
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Abstract
The invention provides a thermoelectric generation system through countercurrent oxidation of mine ventilation air, which belongs to the technical field of performing efficient temperature-difference thermoelectric conversion by utilizing countercurrent oxidation of methane in mine ventilation air to release heat. Gas containing methane extremely low in concentration can be subjected to self-sustained periodic reciprocating-flowing oxidation in a countercurrent oxidation bed of the system so as to form a middle high-temperature region of which the temperature is far higher than a theoretic adiabatic combustion temperature; the hot end of a thermoelectric generation unit is in contact with an inner insulating board in the region; and the cold end of the thermoelectric generation unit is in contact with an outer insulating board connected with a heat exchanger. As a great temperature gradient is produced between the hot end and the cold end of the thermoelectric generation unit, efficient thermoelectric-conversion power generation can be performed with no complex steam cycle or power generation system, and the temperature-difference thermoelectric conversion efficiency of the thermoelectric generation system is obviously higher than conventional thermoelectric generators. The thermoelectric generation system is characterized by simple equipment, compact structure, low cost and high efficiency, and efficiently provides an effective method and equipment choice for controlling and utilizing mine ventilation air.
Description
Technical field
The invention belongs to and utilize in the mine air-lack methane counter flow oxidation release heat to carry out the efficient temperature-difference thermoelectric conversion technology field.
Background technology
During the lower gas of colliery extraction methane content, adopt the method for " wind row ", inject air to mine, with gas blending discharge mine, this part gas is called as " mine air-lack ".Because methane content generally is lower than 1% in the mine air-lack, be difficult to be utilized most of directly being discharged in the middle of the atmosphere by the combustion technology of routine.China is coal big country, and according to statistics, the mine air-lack of annual emptying is amounted to into pure methane 10～15 * 10
9m
3, with 12 * 10 of transfering natural gas from the west to the east
9m
3Amount of natural gas is suitable, causes the big energy waste of tool.In addition, annual emptying mine air-lack accounts for China's industry methane total release more than 20%, accounts for 5% of total greenhouse gas emissions, and so huge discharge capacity produces significant damage to environment.
At present, Sweden MEGTEC company has developed out the counter flow oxidation reaction system, just is being tending towards commercialization.Our country wins the independent development of moving group company and develops a counter flow oxidation reaction unit, and at the permanent major company of Fuxin Mining Group north wind well trial run is installed.But the counter flow oxidation reaction system burns when discharging heat within it recycling mine air-lack, particularly be translated into high-quality electric energy, must adopt traditional vapor recycle and electricity generation system, make whole counter flow oxidation react power generation system structure complexity, bulky, the nucleus equipment costliness, it is little that application item is invested big income, so, do not applied on a large scale so far.
Summary of the invention
The present invention overcomes above-mentioned deficiency exactly, provides that a kind of equipment is simple, compact conformation, mine ventilation counter flow oxidation thermo-electric generation system that production cost is low.Methane oxidation in counter flow oxidation bed of the present invention in the mine air-lack generates carbon dioxide and water, utilizes oxidation liberates heat to realize the efficient temperature-difference thermoelectric conversion.
Technical solution of the present invention is: mine ventilation counter flow oxidation thermo-electric generation system, by mine 1, pipeline 2, induced draft fan 3, gas purification storage device 4, air blast 5, mine air-lack admission line 6, air intake pipe 7, mist admission line 8, counter flow oxidation thermo-electric generation device 9, control system 10, discharge duct 11, thermoelectric generator electrode cable 12, DC-to-DC converter 13, direct current output lead 14, power consumption equipment 15 and hot water user 16 form, mine 1 outlet links to each other with induced draft fan 3 imports, induced draft fan 3 outlets link to each other with 4 imports of gas purification storage device, 4 outlets of gas purification storage device link to each other with air blast 5 imports, air blast 5 outlets link to each other with mine air-lack admission line 6, mine air-lack admission line 6 converges the back with air intake pipe 7 and links to each other with mist admission line 8, mist admission line 8 links to each other with counter flow oxidation thermo-electric generation device 9, counter flow oxidation thermo-electric generation device 9 links to each other with discharge duct 11, and discharge duct 11 links to each other with atmospheric environment.
Counter flow oxidation thermo-electric generation device 9 is by mist admission line 8, positive draft path 17, back draught path 18, electromagnetically operated valve a19, electromagnetically operated valve b20, electromagnetically operated valve c21, electromagnetically operated valve d22, counter flow oxidation device 23, counter flow oxidation device intake and exhaust pipeline 24, recirculated water heat exchanger 28, discharge duct 11 and thermoelectric generator 32 are formed, mist admission line 8 is with positive draft path 17, back draught path 18 connects, positive draft path 17, back draught path 18 is connected with counter flow oxidation device intake and exhaust pipeline 24, positive draft path 17, back draught path 18 is connected with gas exhaust piping 11, positive draft path 17 is provided with electromagnetically operated valve a19 between mist admission line 8 and the counter flow oxidation device intake and exhaust pipeline 24, back draught path 18 is provided with electromagnetically operated valve b20 between mist admission line 8 and the counter flow oxidation device intake and exhaust pipeline 24, back draught path 18 is provided with electromagnetically operated valve c21 between counter flow oxidation device intake and exhaust pipeline 24 and the discharge duct 11, positive draft path 17 is provided with electromagnetically operated valve d22 between counter flow oxidation device intake and exhaust pipeline 24 and the discharge duct 11, control system 10 and electromagnetically operated valve a19, electromagnetically operated valve b20, electromagnetically operated valve c21, electromagnetically operated valve d22 control line connects, the counter flow oxidation device is symmetric arrangement thermoelectric generator 32 about in the of 23, outside each thermoelectric generator 32, arrange recirculated water heat exchanger 28, connect successively is that the last lower wall panels 25 of counter flow oxidation device 23 links to each other with the interior insulation board 33 of thermoelectric generator 32, the external insulation plate 34 of thermoelectric generator 32 links to each other with the base plate 30 of recirculated water heat exchanger 28, the recirculated water of recirculated water heat exchanger 28 is imported and exported 29 and is linked to each other with hot water user 16, thermoelectric generator electrode 36 links to each other with thermoelectric generator electrode cable 12, thermoelectric generator electrode cable 12 links to each other with DC-to-DC converter 13, and the output lead of DC-to-DC converter 13 links to each other with power consumption equipment 15.
Counter flow oxidation device 23 is by counter flow oxidation device intake and exhaust pipeline 24, ceramic package 27, last lower wall panels 25, sidewall paneling 26, intake and exhaust space 38, air-flow is adjusted plate 39, counter flow oxidation bed 40 and electric heater 37 are formed, the last lower wall panels 25 of counter flow oxidation device 23 is provided with the ridge groove 41 that prevents thermal expansion stress, last lower wall panels 25 and sidewall paneling 26 connect and compose cuboid ceramic package 27, counter flow oxidation device intake and exhaust pipeline 24 is connected with ceramic package 27, the sidewall paneling 26 of counter flow oxidation device 23 is coated with ceramic insulation material with last lower wall panels 25 parts that do not contact with interior insulation board 33, be provided with intake and exhaust space 38 in the ceramic package 27, air-flow is adjusted plate 39, counter flow oxidation bed 40, intake and exhaust space 38 is adjusted plate 39 with air-flow and is linked to each other, air-flow is adjusted plate 39 and is linked to each other with counter flow oxidation bed 40, and 40 axial zone lines of counter flow oxidation are provided with electric heater 37.
Thermo-electric generation unit 35 is made of P type thermocouple arm 43, N type thermocouple arm 44, insulating barrier 45 and electric conductor 46, electric conductor 46 the P type thermocouple arm 43 of thermo-electric generation unit 35 with N type thermocouple arm 44 clinkerings be in the same place, separate by insulating barrier 45 between P type thermocouple arm 43 and the N type thermocouple arm 44.
Recirculated water heat exchanger 28 is imported and exported 29 by base plate 30, cover plate 31, aluminium alloy system fold fin 47 and recirculated water and is formed, base plate 30, cover plate 31 constitute the shell of recirculated water heat exchanger 28, be provided with aluminium alloy system fold fin 47 in the recirculated water outer cover of heat exchanger, the ridge groove 41 that prevents thermal expansion stress is arranged on the base plate 30.
The beneficial effect that the present invention reached is: the fuel gas that produces in the biomass pyrolytic and (as the heating of the combustion pond) process of glowing among gas, nature and the human lives that mine air-lack, municipal refuse landfill produce etc. contains the extremely low gas of methane concentration can carry out therein from keeping oxidation reaction, make that methane conversion is carbon dioxide and water in the gas, prevented its pollution environment.In addition, mist is reversing current dynamic oxidation reaction performance period in the counter flow oxidation bed, and the cycle reciprocally absorbs heat and heat release, forms along temperature in the counter flow oxidation bed far above the axial middle high-temperature of theoretical adiabatic combustion temperature zone.The top and the bottom that are arranged in counter flow oxidation device high-temperature area of thermoelectric generator, hot junction, thermo-electric generation unit contacts the interior insulation board in this zone, the cold junction contact of thermo-electric generation unit contacts with the external insulation plate that heat exchanger links to each other, produce big temperature gradient between hot junction, thermo-electric generation unit and the thermo-electric generation unit cold junction, so can carry out the high efficiency thermoelectric conversion power generation, generating is after DC-to-DC converter voltage and current conversion, electricity supply and use equipment uses, cooling circulating water is heated to form hot water in the recirculated water heat exchanger, use for the user.Temperature-difference thermoelectric conversion efficient is apparently higher than conventional thermoelectric generator, and for the thermoelectric couple that low-cost thermoelectric material is made, conversion efficiency of thermoelectric can reach 10-15%.
The present invention will be further described below in conjunction with the drawings and specific embodiments.
Description of drawings:
Accompanying drawing 1 is a mine ventilation counter flow oxidation thermo-electric generation system structural representation of the present invention;
Accompanying drawing 2 is counter flow oxidation thermo-electric generation apparatus structure schematic diagrames of the present invention;
Accompanying drawing 3 is counter flow oxidation device of the present invention, thermo-electric generation and recirculated water heat exchanger three-dimensional structure schematic diagram;
Accompanying drawing 4 is counter flow oxidation device of the present invention, thermo-electric generation and recirculated water heat exchanger Facad structure schematic diagram;
Accompanying drawing 5 is A-A cross-sectional view of accompanying drawing 4.
Among the figure, 1. mine, 2. pipeline, 3. induced draft fan, 4. gas purification storage device, 5. air blast, 6. mine lacks gas admission line, 7. air intake pipe, 8. mist admission line, 9. counter flow oxidation thermo-electric generation device, 10. control system, 11. discharge ducts, 12. the electrode cable of thermoelectric generator, 13. DC-to-DC converter, 14. DC-to-DC converter output leads, 15. power consumption equipment, 16. hot water users, 17. positive draft paths, 18. the back draught path, 19. electromagnetically operated valve a, 20. electromagnetically operated valve b, 21. electromagnetically operated valve c, 22. electromagnetically operated valve d, 23. counter flow oxidation devices, 24. counter flow oxidation device intake and exhaust pipeline, 25. last lower wall panels, 26. sidewall panelings, 27. ceramic packages, 28. recirculated water heat exchanger, 29. recirculated water is imported and exported, 30. base plates, 31. cover plates, 32. thermoelectric generator, 33. interior insulation board, 34. external insulation plates, 35. thermo-electric generation unit, 36. thermoelectric generator electrode, 37. electric heater, 38. intake and exhaust spaces, 39. air-flows are adjusted plate, 40. counter flow oxidation bed, 41. prevent the ridge groove of thermal expansion stress, 42. conductive foils, 43.P type thermocouple arm, 44.N type thermocouple arm, 45. insulating barrier, 46. electric conductors, 47. aluminium alloy system fold fin.
Embodiment
Shown in Fig. 1-5, mine ventilation counter flow oxidation thermo-electric generation system of the present invention, by mine 1, pipeline 2, induced draft fan 3, gas purification storage device 4, air blast 5, mine air-lack admission line 6, air intake pipe 7, mist admission line 8, counter flow oxidation thermo-electric generation device 9, control system 10, discharge duct 11, thermoelectric generator electrode cable 12, DC-to-DC converter 13, direct current output lead 14, power consumption equipment 15 and hot water user 16 form, mine 1 outlet links to each other with induced draft fan 3 imports, induced draft fan 3 outlets link to each other with 4 imports of gas purification storage device, 4 outlets of gas purification storage device link to each other with air blast 5 imports, air blast 5 outlets link to each other with mine air-lack admission line 6, mine air-lack admission line 6 converges the back with air intake pipe 7 and links to each other with mist admission line 8, mist admission line 8 links to each other with counter flow oxidation thermo-electric generation device 9, counter flow oxidation thermo-electric generation device 9 links to each other with discharge duct 11, and discharge duct 11 links to each other with atmospheric environment.
Counter flow oxidation thermo-electric generation device 9 is by mist admission line 8, positive draft path 17, back draught path 18, electromagnetically operated valve a19, electromagnetically operated valve b20, electromagnetically operated valve c21, electromagnetically operated valve d22, counter flow oxidation device 23, counter flow oxidation device intake and exhaust pipeline 24, recirculated water heat exchanger 28, discharge duct 11 and thermoelectric generator 32 are formed, mist admission line 8 is with positive draft path 17, back draught path 18 connects, positive draft path 17, back draught path 18 is connected with counter flow oxidation device intake and exhaust pipeline 24, positive draft path 17, back draught path 18 is connected with gas exhaust piping 11, positive draft path 17 is provided with electromagnetically operated valve a19 between mist admission line 8 and the counter flow oxidation device intake and exhaust pipeline 24, back draught path 18 is provided with electromagnetically operated valve b20 between mist admission line 8 and the counter flow oxidation device intake and exhaust pipeline 24, back draught path 18 is provided with electromagnetically operated valve c21 between counter flow oxidation device intake and exhaust pipeline 24 and the discharge duct 11, positive draft path 17 is provided with electromagnetically operated valve d22 between counter flow oxidation device intake and exhaust pipeline 24 and the discharge duct 11, control system 10 and electromagnetically operated valve a19, electromagnetically operated valve b20, electromagnetically operated valve c21, electromagnetically operated valve d22 control line connects, the counter flow oxidation device is symmetric arrangement thermoelectric generator 32 about in the of 23, outside each thermoelectric generator 32, arrange recirculated water heat exchanger 28, connect successively is that the last lower wall panels 25 of counter flow oxidation device 23 links to each other with the interior insulation board 33 of thermoelectric generator 32, the external insulation plate 34 of thermoelectric generator 32 links to each other with the base plate 30 of recirculated water heat exchanger 28, the recirculated water of recirculated water heat exchanger 28 is imported and exported 29 and is linked to each other with hot water user 16, thermoelectric generator electrode 36 links to each other with thermoelectric generator electrode cable 12, thermoelectric generator electrode cable 12 links to each other with DC-to-DC converter 13, and the output lead of DC-to-DC converter 13 links to each other with power consumption equipment 15.
Counter flow oxidation device 23 is by counter flow oxidation device intake and exhaust pipeline 24, ceramic package 27, last lower wall panels 25, sidewall paneling 26, intake and exhaust space 38, air-flow is adjusted plate 39, counter flow oxidation bed 40 and electric heater 37 are formed, the last lower wall panels 25 of counter flow oxidation device 23 is provided with the ridge groove 41 that prevents thermal expansion stress, last lower wall panels 25 and sidewall paneling 26 connect and compose cuboid ceramic package 27, counter flow oxidation device intake and exhaust pipeline 24 is connected with ceramic package 27, the sidewall paneling 26 of counter flow oxidation device 23 is coated with ceramic insulation material with last lower wall panels 25 parts that do not contact with interior insulation board 33, be provided with intake and exhaust space 38 in the ceramic package 27, air-flow is adjusted plate 39, counter flow oxidation bed 40, intake and exhaust space 38 is adjusted plate 39 with air-flow and is linked to each other, air-flow is adjusted plate 39 and is linked to each other with counter flow oxidation bed 40, and 40 axial zone lines of counter flow oxidation are provided with electric heater 37.
Thermo-electric generation unit 35 is made of P type thermocouple arm 43, N type thermocouple arm 44, insulating barrier 45 and electric conductor 46, electric conductor 46 the P type thermocouple arm 43 of thermo-electric generation unit 35 with N type thermocouple arm 44 clinkerings be in the same place, separate by insulating barrier 45 between P type thermocouple arm 43 and the N type thermocouple arm 44.
Recirculated water heat exchanger 28 is imported and exported 29 by base plate 30, cover plate 31, aluminium alloy system fold fin 47 and recirculated water and is formed, base plate 30, cover plate 31 constitute the shell of recirculated water heat exchanger 28, be provided with aluminium alloy system fold fin 47 in the recirculated water outer cover of heat exchanger, the ridge groove 41 that prevents thermal expansion stress is arranged on the base plate 30.
The course of work of this system is: mine air-lack is incorporated into the gas purification storage device 4 from mine 1 by induced draft fan 3, draw by air blast 5 then, become the pre-mixed gas of equivalent proportion in the given range with the air mixed of introducing, feed then in the counter flow oxidation thermo-electric generation device 9, electric heater 37 energising preheating ignitings, electromagnetically operated valve a19 and electromagnetically operated valve d22 are synchronous, electromagnetically operated valve b20 and electromagnetically operated valve c21 are synchronous, two pairs of synchronous electromagnetic valve switch of control system 10 controls, thereby control air-flow periodic reverse, gas back and forth flows at oxidation bed 40 intercycles of counter flow oxidation device 23, heat absorption and heat release, thus in oxidation bed 40, realize containing the methane concentration mine air-lack from keeping the generation oxidation reaction.In oxidation reaction, can form axial medium temperature height in the oxidation bed 40, two sides temperature is near the trapezoidal temperature field of room temperature, middle high-temperature area temperature is much larger than the burning adiabatic temperature, temperature difference electric organ 32 is arranged on the high-temperature area top and the bottom of counter flow oxidation device 23,35 hot junctions, thermo-electric generation unit contact the interior insulation board 33 in this zone, thermo-electric generation unit 35 cold junctions contact with the external insulation plate 34 that the base plate 30 of heat exchanger recirculated water 28 links to each other, produce big temperature gradient between 35 hot junctions, thermo-electric generation unit and the cold junction, can carry out the high efficiency thermoelectric conversion, generating is after DC-to-DC converter 13 voltages and current conversion, electricity supply and use equipment 15 uses, cooling circulating water is heated to form hot water in recirculated water heat exchanger 28, heat supply water user 16 uses.
Claims (6)
1. mine ventilation counter flow oxidation thermo-electric generation system, by mine (1), pipeline (2), induced draft fan (3), gas purification storage device (4), air blast (5), mine air-lack admission line (6), air intake pipe (7), mist admission line (8), counter flow oxidation thermo-electric generation device (9), control system (10), discharge duct (11), thermoelectric generator electrode cable (12), DC-to-DC converter (13), direct current output lead (14), power consumption equipment (15) and hot water user (16) form, it is characterized in that, mine (1) outlet links to each other with induced draft fan (3) import, induced draft fan (3) outlet links to each other with gas purification storage device (4) import, gas purification storage device (4) outlet links to each other with air blast (5) import, air blast (5) outlet links to each other with mine air-lack admission line (6), the same air intake pipe of mine air-lack admission line (6) (7) converges the back and links to each other with mist admission line (8), mist admission line (8) links to each other with counter flow oxidation thermo-electric generation device (9), counter flow oxidation thermo-electric generation device (9) links to each other with discharge duct (11), and discharge duct (11) links to each other with atmospheric environment.
2. mine ventilation counter flow oxidation thermo-electric generation system according to claim 1, it is characterized in that, described counter flow oxidation thermo-electric generation device (9) is by mist admission line (8), positive draft path (17), back draught path (18), electromagnetically operated valve a (19), electromagnetically operated valve b (20), electromagnetically operated valve c (21), electromagnetically operated valve d (22), counter flow oxidation device (23), counter flow oxidation device intake and exhaust pipelines (24), recirculated water heat exchanger (28), discharge duct (11) and thermoelectric generator (32) are formed, mist admission line (8) is with positive draft path (17), back draught path (18) connects, positive draft path (17), back draught path (18) is connected with counter flow oxidation device intake and exhaust pipelines (24), positive draft path (17), back draught path (18) is connected with gas exhaust piping (11), positive draft path (17) is provided with electromagnetically operated valve a (19) between mist admission line (8) and the counter flow oxidation device intake and exhaust pipelines (24), back draught path (18) is provided with electromagnetically operated valve b (20) between mist air inlet pipe (8) and the counter flow oxidation device intake and exhaust pipelines (24), back draught path (18) is provided with electromagnetically operated valve c (21) between counter flow oxidation device intake and exhaust pipelines (24) and the discharge duct (11), positive draft path (17) is provided with electromagnetically operated valve d (22) between counter flow oxidation device intake and exhaust pipelines (24) and the discharge duct (11), control system (10) and electromagnetically operated valve a (19), electromagnetically operated valve b (20), electromagnetically operated valve c (21), electromagnetically operated valve d (22) control line connects, counter flow oxidation device (23) is symmetric arrangement thermoelectric generator (32) up and down, outside each thermoelectric generator (32), arrange recirculated water heat exchanger (28), the last lower wall panels (25) of counter flow oxidation device (23) links to each other with the interior insulation board (33) of thermoelectric generator (32), the external insulation plate (34) of thermoelectric generator (32) links to each other with the base plate (30) of recirculated water heat exchanger (28), the recirculated water of recirculated water heat exchanger (28) is imported and exported (29) and is linked to each other with hot water user (16), thermoelectric generator electrode (36) links to each other with thermoelectric generator electrode cable (12), thermoelectric generator electrode cable (12) links to each other with DC-to-DC converter (13), and the output lead of DC-to-DC converter (13) links to each other with power consumption equipment (15).
3. mine ventilation counter flow oxidation thermo-electric generation system according to claim 1 and 2, it is characterized in that, described counter flow oxidation device (23) is by counter flow oxidation device intake and exhaust pipelines (24), last lower wall panels (25), sidewall paneling (26), ceramic package (27), intake and exhaust space (38), air-flow is adjusted plate (39), counter flow oxidation bed (40) and electric heater (37) are formed, the last lower wall panels (25) of counter flow oxidation device (23) is provided with the ridge groove (41) that prevents thermal expansion stress, last lower wall panels (25) and sidewall paneling (26) connect and compose cuboid ceramic package (27), counter flow oxidation device intake and exhaust pipelines (24) are connected with ceramic package (27), the sidewall paneling (26) of counter flow oxidation device (23) is coated with ceramic insulation material with last lower wall panels (25) part that does not contact with interior insulation board (33), be provided with intake and exhaust space (38) in the ceramic package (27), air-flow is adjusted plate (39), counter flow oxidation bed (40), intake and exhaust space (38) is adjusted plate (39) with air-flow and is linked to each other, air-flow is adjusted plate (39) and is linked to each other with counter flow oxidation bed (40), and counter flow oxidation (40) bed axially zone line is provided with electric heater (37).
4. mine ventilation counter flow oxidation thermo-electric generation system according to claim 1 and 2, it is characterized in that, described thermoelectric generator (32) is by interior insulation board (33), external insulation plate (34), thermo-electric generation unit (35), conductive foil (42) and thermoelectric generator electrode (36) are formed, thermo-electric generation unit (35) between interior insulation board (33) and external insulation plate (34) all around arrayed arrange, hot junction, thermo-electric generation unit (35) contacts with interior insulation board (33), thermo-electric generation unit (35) cold junction contacts with external insulation plate (34), temperature-difference thermoelectric unit (35) is in series by conductive foil (42), conductive foil (42) links to each other with thermoelectric generator electrode (36), and the ridge groove (41) that prevents thermal expansion stress is arranged on interior insulation board (33) and the external insulation plate (34).
5. mine ventilation counter flow oxidation thermo-electric generation system according to claim 1 and 2, it is characterized in that, described thermo-electric generation unit (35) is made of P type thermocouple arm (43), N type thermocouple arm (44), insulating barrier (45) and electric conductor (46), electric conductor (46) is separated by insulating barrier (45) between P type thermocouple arm (43) and the N type thermocouple arm (44) the P type thermocouple arm (43) of thermo-electric generation unit (35) and N type thermocouple arm (44) clinkering together.
6. mine ventilation counter flow oxidation thermo-electric generation system according to claim 1 and 2, it is characterized in that, described recirculated water heat exchanger (28) is imported and exported (29) by base plate (30), cover plate (31), aluminium alloy system fold fin (47) and recirculated water and is formed, base plate (30), cover plate (31) constitute the shell of recirculated water heat exchanger (28), be provided with aluminium alloy system fold fin (47) in the recirculated water outer cover of heat exchanger, the ridge groove (41) that prevents thermal expansion stress is arranged on the base plate (30).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100106128A CN101505120A (en) | 2009-03-06 | 2009-03-06 | Mine ventilation counter flow oxidation thermo-electric generation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100106128A CN101505120A (en) | 2009-03-06 | 2009-03-06 | Mine ventilation counter flow oxidation thermo-electric generation system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011605A (en) * | 2010-09-27 | 2011-04-13 | 中国矿业大学 | Low-concentration gas and ventilation air methane thermal oxidation generating system and method of coal mine |
| CN103912891A (en) * | 2014-03-26 | 2014-07-09 | 中国神华能源股份有限公司 | Coal-fired boiler combustion system with participant mixture of drainage gas and ventilation gas |
| CN105048871A (en) * | 2015-05-22 | 2015-11-11 | 武汉理工大学 | Thermoelectric power generation system employing high-temperature exhaust gas |
| CN109887721A (en) * | 2019-01-24 | 2019-06-14 | 国家电网有限公司 | Transformer heat reclaim unit and equipment |
-
2009
- 2009-03-06 CN CNA2009100106128A patent/CN101505120A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011605A (en) * | 2010-09-27 | 2011-04-13 | 中国矿业大学 | Low-concentration gas and ventilation air methane thermal oxidation generating system and method of coal mine |
| CN102011605B (en) * | 2010-09-27 | 2012-10-24 | 中国矿业大学 | Low-concentration gas and ventilation air methane thermal oxidation generating system and method of coal mine |
| CN103912891A (en) * | 2014-03-26 | 2014-07-09 | 中国神华能源股份有限公司 | Coal-fired boiler combustion system with participant mixture of drainage gas and ventilation gas |
| CN103912891B (en) * | 2014-03-26 | 2016-09-14 | 中国神华能源股份有限公司 | The mixed ventilation air gas of mash gas extraction ginseng participates in coal-fired boiler combustion system |
| CN105048871A (en) * | 2015-05-22 | 2015-11-11 | 武汉理工大学 | Thermoelectric power generation system employing high-temperature exhaust gas |
| CN109887721A (en) * | 2019-01-24 | 2019-06-14 | 国家电网有限公司 | Transformer heat reclaim unit and equipment |
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