CN103277130B - Mining area distributed coal mine gas near-zero emission poly-generation energy supply system - Google Patents
Mining area distributed coal mine gas near-zero emission poly-generation energy supply system Download PDFInfo
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- CN103277130B CN103277130B CN201310201440.9A CN201310201440A CN103277130B CN 103277130 B CN103277130 B CN 103277130B CN 201310201440 A CN201310201440 A CN 201310201440A CN 103277130 B CN103277130 B CN 103277130B
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- 239000003245 coal Substances 0.000 title claims abstract description 41
- 238000005065 mining Methods 0.000 title claims description 14
- 239000007789 gas Substances 0.000 claims abstract description 155
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 65
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims abstract description 62
- 238000010521 absorption reaction Methods 0.000 claims abstract description 31
- 239000002918 waste heat Substances 0.000 claims abstract description 18
- 230000003647 oxidation Effects 0.000 claims abstract description 16
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 16
- 238000005086 pumping Methods 0.000 claims description 14
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 abstract description 18
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000009423 ventilation Methods 0.000 abstract 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000005431 greenhouse gas Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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Abstract
A mine area distributed coal mine gas near-zero emission poly-generation energy supply system belongs to a gas near-zero emission energy supply system. The gas extraction pump station is connected with the gas concentration controller; the outlet of the cyclone dehydrator is divided into two paths; the output end of the gas power machine is connected with the first generator; the main mine ventilator is connected with the gas mixer and the ventilation gas oxidation device in sequence; the outlet of the water storage tank is connected with a water supply pressurizing pump, and the outlet of the water supply pressurizing pump is divided into two paths; a steam outlet of the ventilation gas oxidation device and a steam outlet of the waste heat boiler are connected with an inlet of a steam mixer; the outlet of the steam mixer is sequentially connected with a steam power machine, a condenser and a water storage tank; the output of the steam power machine is connected with the second generator; and the cold and hot water outlet of the waste heat type double-effect lithium bromide absorption cold and hot water unit and the cold and hot water outlet of the gas type double-effect lithium bromide absorption cold and hot water unit are connected with a main cold and hot water pipeline in a gathering manner. The clean production and utilization of coal mine gas and the circular economy development of a coal mine area are realized.
Description
Technical field
The present invention relates to a kind of gas near-zero release energy supplying system, particularly a kind of mining area distributed coal mine gas near-zero release Poly-generation energy supplying system.
Background technology
Gas is the association product of coal, is a kind of non-renewable energy of preciousness.For the safety in production in colliery, the existence of gas is also the source of the disaster that coal mining accident takes place frequently, simultaneously along with the increase of the coal mining degree of depth, coal seam gas-bearing capacity will enlarge markedly, and realizing adopting altogether of coal and non-coal is the inevitable approach that deep coal and gas resources are exploited.Meanwhile, from the discharge of coal mine gas, the discharge of ventilating gas accounts for 70% of coal mine gas total emission volumn.Due to the concentration of ventilating gas low≤1%, flowed fluctuation is large, the conventional technology that utilizes is difficult to effective utilization.Therefore, how to realize coal extraction gas and reasonable, the effective comprehensive utilization of resources of ventilating gas, the efficient level of production of lifting safety of coal mines, minimizing greenhouse gas emission are of great significance.
Distributed energy resource system is a kind of novel energy resource system, compared with general energy system, have safe and reliable, energy conversion efficiency is high, advantages of environment protection, therefore the application prospect of distributed energy resource system is the brightest and the clearest, most practicality and development vitality.Realize coal extraction gas and ventilating gas rationally, effective comprehensive utilization of resources, be particularly the zero-emission energy supplying system that resource builds distributed Poly-generation at coal field based on mash gas extraction and ventilating gas, then seem most important.
But, there is no the specially zero-emission energy supplying system of mining area distributed coal mine gas thermoelectric cold Poly-generation that builds for the Drainage feature of coal field mash gas extraction and ventilating gas so far.
Summary of the invention
Technical problem: the object of the invention is to provide one mining area distributed coal mine gas near-zero release safely and efficiently Poly-generation energy supplying system.
Technical scheme: the object of the present invention is achieved like this: near-zero release Poly-generation energy supplying system comprises: gas pumping pumping plant, gas density controller, gasholder, water seal fire arrestor, wire gauzee filter, first flame arrester for pipe, wet-type relief valve, tornado evaporator, second pipe spark arrester, proportioner, gas power machine, first generator, mine main ventilator, gas blender, ventilated gas oxidation device, waste heat boiler, steam mixer, steam power machine, second generator, condenser, storage tank, pressurize pump, residual-heat double-action lithium bromide absorption hot-cold water machine group and gas type double-effect lithium bromide absorption type water chiller-heater unit,
Described gas pumping pumping plant is connected with gas density controller; The outlet of gas density controller is divided into two-way, and a road is connected with gasholder, and another road is connected with gas blender; The outlet of described gasholder connects water seal fire arrestor, wire gauzee filter, the first flame arrester for pipe, wet-type relief valve and tornado evaporator successively; The outlet of described tornado evaporator is divided into two-way, one tunnel connects second pipe spark arrester, proportioner, gas power machine, waste heat boiler, residual-heat double-action lithium bromide absorption hot-cold water machine group successively, and another road connects gas type double-effect lithium bromide absorption type water chiller-heater unit; The output of gas power machine is connected with the first generator; Described mine main ventilator is connected successively with gas blender, ventilated gas oxidation device; The outlet of described storage tank is connected with pressurize pump, and pressurize delivery side of pump is divided into two-way, and a road is connected with the waterway inlet of ventilated gas oxidation device, and another road is connected with the waterway inlet of waste heat boiler; The steam (vapor) outlet of described ventilated gas oxidation device, the steam (vapor) outlet of waste heat boiler are all connected with the entrance of steam mixer; The outlet of described steam mixer connects steam power machine, condenser and storage tank successively; The output of steam power machine is connected with the second generator; The feedwater of system respectively with entrance, the feed-water intake of residual-heat double-action lithium bromide absorption hot-cold water machine group, the feed-water intake parallel join of gas type double-effect lithium bromide absorption type water chiller-heater unit of storage tank; Described residual-heat double-action lithium bromide absorption hot-cold water machine group hot and cold water outlet, the outlet of gas type double-effect lithium bromide absorption type water chiller-heater unit hot and cold water gather and are connected with total hot and cold water pipeline.
The line segments of described water seal fire arrestor, wire gauzee filter, the first flame arrester for pipe, wet-type relief valve, is provided with parallel branch pipeline identical with it in this line segments.
Described gas power machine is miniature gas turbine or is internal combustion type gas engine; Described steam power machine is steam turbine or steam-type screw expander.
Beneficial effect, owing to have employed such scheme, coal extraction gas and ventilating gas, under the adjustment of gas density controller and gas blender, achieve the cascade utilization of variable concentrations gas; Coal extraction gas, through the multiple protective of water seal fire arrestor, wire gauzee filter, the first flame arrester for pipe, wet-type relief valve, greatly improves the safety of gas feed system; First mash gas extraction does work in gas power machine, burning produce high-temperature flue gas enters waste heat boiler more successively, residual-heat double-action lithium bromide absorption hot-cold water machine group carries out energy exchange, achieve the cascade utilization of energy, improve the utilization ratio of energy resource system.
Coal extraction high concentration gas >=8% is first in the acting of gas power machine, and high-temperature flue gas successively realizes energy exchange in waste heat boiler, residual-heat double-action lithium bromide absorption hot-cold water machine group, is generated electricity by gas power machine, steam power machine driving generator.The mash gas extraction that ventilating gas≤1% and concentration are less than 8% is oxidized after the mixing of gas blender in ventilated gas oxidation device, produces steam and is also generated electricity by steam power machine driving generator.
Advantage: this mining area distributed coal mine gas near-zero release Poly-generation energy supplying system, for the feature of coal extraction gas and ventilating gas, is applicable to the coal mine gas gas comprised in all concentration ranges of mash gas extraction, ventilating gas.The safe and reliable requirement building the thermoelectric cold Energy Polygeneration System that distributed mash gas extraction and ventilating gas fully utilize at coal field can be met, achieve the cascade utilization of variable concentrations gas and the cascade utilization of different quality heat simultaneously, there is higher efficiency of energy utilization.Coal mine gas near-zero release energy resource system of the present invention is specially adapted to the comprehensive utilization of resources of coal mine gas and the structure of mining area distributed energy resource system, while reducing the discharge of greenhouse gases mash gas methane, obtain the clean energy resource conversion of coal mine gas, realize the cleaner production utilization of coal mine gas and the recycling economy development of coal field.
Accompanying drawing explanation
Fig. 1 is the structure chart of a kind of mining area distributed coal mine gas near-zero release Poly-generation energy supplying system of the present invention.
In figure, 1, gas pumping pumping plant; 2, gas density controller; 3, gasholder; 4, water seal fire arrestor; 5, wire gauzee filter; 6, the first flame arrester for pipe; 7, wet-type relief valve; 8, tornado evaporator; 9, second pipe spark arrester; 10, proportioner; 11, gas power machine; 12, the first generator; 13, mine main ventilator; 14, gas blender; 15, ventilated gas oxidation device; 16, waste heat boiler; 17, steam mixer; 18, steam power machine; 19, the second generator; 20, condenser; 21, storage tank; 22, pressurize pump; 23, residual-heat double-action lithium bromide absorption hot-cold water machine group; 24, gas type double-effect lithium bromide absorption type water chiller-heater unit.
Detailed description of the invention
Below in conjunction with accompanying drawing, one embodiment of the present of invention are further described:
Embodiment 1: a kind of mining area distributed coal mine gas near-zero release Poly-generation energy supplying system of the present invention, comprise: gas pumping pumping plant 1, gas density controller 2, gasholder 3, water seal fire arrestor 4, wire gauzee filter 5, first flame arrester for pipe 6, wet-type relief valve 7, tornado evaporator 8, second pipe spark arrester 9, proportioner 10, gas power machine 11, first generator 12, mine main ventilator 13, gas blender 14, ventilated gas oxidation device 15, waste heat boiler 16, steam mixer 17, steam power machine 18, second generator 19, condenser 20, storage tank 21, pressurize pump 22, residual-heat double-action lithium bromide absorption hot-cold water machine group 23, gas type double-effect lithium bromide absorption type water chiller-heater unit 24,
Described gas pumping pumping plant 1 is connected with gas density controller 2; The outlet of gas density controller 2 is divided into two-way, and a road is connected with gasholder 3, and another road is connected with gas blender 14; The outlet of described gasholder 3 connects water seal fire arrestor 4, wire gauzee filter 5, first flame arrester for pipe 6, wet-type relief valve 7, tornado evaporator 8 successively; The outlet of described tornado evaporator 8 is divided into two-way, one tunnel connects second pipe spark arrester 9, proportioner 10, gas power machine 11, waste heat boiler 16, residual-heat double-action lithium bromide absorption hot-cold water machine group 23 successively, and another road connects gas type double-effect lithium bromide absorption type water chiller-heater unit 24; The output of gas power machine 11 is connected with the first generator 12; Described mine main ventilator 13 is connected successively with gas blender 14, ventilated gas oxidation device 15; The outlet of described storage tank 21 is connected with pressurize pump 22, and the outlet of pressurize pump 22 is divided into two-way, and a road is connected with the waterway inlet of ventilated gas oxidation device 15, and another road is connected with the waterway inlet of waste heat boiler 16; The steam (vapor) outlet of described ventilated gas oxidation device 15, the steam (vapor) outlet of waste heat boiler 16 are all connected with the entrance of steam mixer 17; The outlet of described steam mixer 17 connects steam power machine 18, condenser 20 and storage tank 21 successively; The output of steam power machine 18 is connected with the second generator 19; The feedwater of system respectively with entrance, the feed-water intake of residual-heat double-action lithium bromide absorption hot-cold water machine group 23, the feed-water intake parallel join of gas type double-effect lithium bromide absorption type water chiller-heater unit 24 of storage tank 21; Described residual-heat double-action lithium bromide absorption hot-cold water machine group 23 hot and cold water outlet, the outlet of gas type double-effect lithium bromide absorption type water chiller-heater unit 24 hot and cold water gather and are connected with total hot and cold water pipeline.
The line segments of described water seal fire arrestor 4, wire gauzee filter 5, first flame arrester for pipe 6, wet-type relief valve 7, is provided with parallel branch pipeline identical with it in this line segments.
Described gas power machine 11 is miniature gas turbine or is internal combustion type gas engine; Described steam power machine 18 is steam turbine or steam-type screw expander.
When the concentration of mash gas extraction is less than 8%, gas density controller 2 regulates device in Gas to flow to into gas blender 14; When the concentration of mash gas extraction is more than or equal to 8%, gas density controller 2 regulates device in Gas to flow to into gasholder 3.
Coal extraction gas and ventilating gas with under the adjustment of gas blender 14, achieve the cascade utilization of variable concentrations gas at gas density controller 2; Coal extraction gas, through the multiple protective of water seal fire arrestor 3, wire gauzee filter 4, first flame arrester for pipe 5, wet-type relief valve 6, greatly improves the safety of gas feed system; First mash gas extraction does work in gas power machine 11, burning produce high-temperature flue gas enters waste heat boiler 12 more successively, residual-heat double-action lithium bromide absorption hot-cold water machine group 18 carries out energy exchange, achieve the cascade utilization of energy, improve the utilization ratio of energy resource system.
Claims (3)
1. a mining area distributed coal mine gas near-zero release Poly-generation energy supplying system, it is characterized in that: near-zero release Poly-generation energy supplying system comprises: gas pumping pumping plant, gas density controller, gasholder, water seal fire arrestor, wire gauzee filter, first flame arrester for pipe, wet-type relief valve, tornado evaporator, second pipe spark arrester, proportioner, gas power machine, first generator, mine main ventilator, gas blender, ventilated gas oxidation device, waste heat boiler, steam mixer, steam power machine, second generator, condenser, storage tank, pressurize pump, residual-heat double-action lithium bromide absorption hot-cold water machine group and gas type double-effect lithium bromide absorption type water chiller-heater unit,
Described gas pumping pumping plant is connected with gas density controller; The outlet of gas density controller is divided into two-way, and a road is connected with gasholder, and another road is connected with gas blender; The outlet of described gasholder connects water seal fire arrestor, wire gauzee filter, the first flame arrester for pipe, wet-type relief valve and tornado evaporator successively; The outlet of described tornado evaporator is divided into two-way, one tunnel connects second pipe spark arrester, proportioner, gas power machine, waste heat boiler, residual-heat double-action lithium bromide absorption hot-cold water machine group successively, and another road connects gas type double-effect lithium bromide absorption type water chiller-heater unit; The output of gas power machine is connected with the first generator; Described mine main ventilator is connected successively with gas blender, ventilated gas oxidation device; The outlet of described storage tank is connected with pressurize pump, and pressurize delivery side of pump is divided into two-way, and a road is connected with the waterway inlet of ventilated gas oxidation device, and another road is connected with the waterway inlet of waste heat boiler; The steam (vapor) outlet of described ventilated gas oxidation device, the steam (vapor) outlet of waste heat boiler are all connected with the entrance of steam mixer; The outlet of described steam mixer connects steam power machine, condenser and storage tank successively; The output of steam power machine is connected with the second generator; The feedwater of system respectively with entrance, the feed-water intake of residual-heat double-action lithium bromide absorption hot-cold water machine group, the feed-water intake parallel join of gas type double-effect lithium bromide absorption type water chiller-heater unit of storage tank; Described residual-heat double-action lithium bromide absorption hot-cold water machine group hot and cold water outlet, the outlet of gas type double-effect lithium bromide absorption type water chiller-heater unit hot and cold water gather and are connected with total hot and cold water pipeline.
2. a kind of mining area distributed coal mine gas near-zero release Poly-generation energy supplying system according to claim 1, it is characterized in that: the line segments of described water seal fire arrestor, wire gauzee filter, the first flame arrester for pipe, wet-type relief valve, in this line segments, parallel branch pipeline identical with it is installed.
3. a kind of mining area distributed coal mine gas near-zero release Poly-generation energy supplying system according to claim 1, is characterized in that: described gas power machine is miniature gas turbine or is internal combustion type gas engine; Described steam power machine is steam turbine or steam-type screw expander.
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CN103291351B (en) | 2013-05-24 | 2015-01-14 | 中国矿业大学 | Mining area distributed coal mine gas extraction thermoelectric cold poly-generation energy system |
CN106958495B (en) * | 2017-04-13 | 2019-08-27 | 中煤科工集团重庆研究院有限公司 | Method for generating power by using low-concentration gas of coal mine |
CN109372601B (en) * | 2018-08-03 | 2024-06-18 | 中国大唐集团科学技术研究院有限公司 | Distributed comprehensive energy supply system for recycling ventilation gas |
CN110145408B (en) * | 2019-05-28 | 2020-02-28 | 浙江亿扬能源科技有限公司 | Comprehensive energy supply system for recovering wide-concentration gas in coal mine and operation method thereof |
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 |
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 |
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CN102562131A (en) * | 2010-12-24 | 2012-07-11 | 上海攀极投资有限公司 | Coal mine gas comprehensive application system and application method thereof |
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