CN106288465A - A kind of distributed coal-field fire waste heat electricity generation system - Google Patents
A kind of distributed coal-field fire waste heat electricity generation system Download PDFInfo
- Publication number
- CN106288465A CN106288465A CN201610806623.7A CN201610806623A CN106288465A CN 106288465 A CN106288465 A CN 106288465A CN 201610806623 A CN201610806623 A CN 201610806623A CN 106288465 A CN106288465 A CN 106288465A
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- China
- Prior art keywords
- heat medium
- cooling water
- container
- coal
- field fire
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T10/10—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
- H02N11/002—Generators
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Abstract
The invention discloses a kind of distributed coal-field fire waste heat electricity generation system, including coal-field fire (1), it is characterized in that: include surface drilling (2), underground heat conduction pipeline (3), insulation heat medium container (4), relief valve (5), temperature-difference power generation module (6), cooling water container (7), the heat medium pump (8) being connected with insulation heat medium container (4) and the water pump (9) being connected with cooling water container (7), described insulation heat medium container (4), heat medium pump (8) and temperature-difference power generation module (6) constitute the closed circuit of heating agent, described cooling water container (7), water pump (9) and temperature-difference power generation module (6) constitute the closed circuit of coolant.Native system is simple and practical, it is simple to mobile and maintenance, and it extracts heat energy according to flame range existence conditions and carries out distributed power generation, decreases heat resource waste, preferably solves remote districts resident and workman's need for electricity simultaneously, have wide applicability.
Description
Technical field
The invention belongs to coal-field fire energy recovery technical field, specifically refer to a kind of distributed coal-field fire waste heat
Electricity generation system.
Background technology
Coal fire refers under natural environment or under anthropic factor, and coal causes burning development to be formed because of oxidation heat build-up
Large area underground coal fire.Underground coal fire distribution is very wide in the world, spreads all over southern hemisphere and northern hemisphere, not only in state-owned, India, the U.S., Russia sieve
This, Australia, Indonesia, the countries and regions such as Central Asia the most generally exist.Underground coal fire can cause serious coal to provide
Source loss, air and water environment pollution, environmental destruction and geological disaster.Coal fire is mainly distributed on Inner Mongol, Ningxia in China
And Xinjiang, according to statistics, China's coal-field fire burning area reaches 720km2, coal resources 13,600,000 t of annual directly combustible loss,
The coal resources of indirect loss about 200,000,000 t；Flame range Collapse Pit, crack persistently there are substantial amounts of blue or green cigarette and toxic and harmful emerge,
Surrounding is caused severe contamination；In flame range, rock stratum watery is poor, the Acidity of Aikalinity compound that burning is produced by Atmospheric precipitation
After bringing underground into, pollute Deep Groundwater；Combustion products separates out earth's surface, causes the acid increase of surface soil, and sulfur content increases
Height, causes soil fertility to decline, bond weakens, the reduced capability of enriched organic matter, destroys this just fragile local area ecological；
It is readily formed high temperature after half-edge coal seam burning to subside, local resident is caused huge potential safety hazard.
According to underground coal fire combustion position and outside fire extinguishing condition, coal fire administers the general extinguishing method using stripping to dig and stripping
The extinguishing method covered from, probing, water filling, slip casting, loess.At present, both at home and abroad coal-field fire is also rested in improvement aspect,
Recycle discarded working energy and carry out less, there is no supporting system and method；And flame range abnormal high temperature region has local
Changing, distribution is everywhere；It addition, for remote districts, electrical problem becomes local resident and the main bugbear of flame range construction brigade.This
The bright coal-field fire waste heat conversion electric energy that utilizes in a distributed manner is significant.
Summary of the invention
The present invention seeks to, for problems such as the discarded thermal resource local distribution of coal-field fire, the wastings of resources, it is provided that a kind of
Distributed coal-field fire waste heat electricity generation system, it is achieved the recycling of distributed discarded thermal resource.
For solving above-mentioned technical problem, the technical scheme that the present invention provides is: a kind of distributed coal-field fire waste heat
Electricity generation system, including coal-field fire, the surface drilling under being provided with on described coal-field fire in depth, is provided with in surface drilling
The underground heat conduction pipeline that bottom is obstructed, the top of described underground heat conduction pipeline is provided with the insulation heat medium container communicated, described
Insulation heat medium container is provided with relief valve, also includes the heat that temperature-difference power generation module, cooling water container are connected with insulation heat medium container
Matchmaker's pump and the water pump being connected with cooling water container, described insulation heat medium container, heat medium pump and temperature-difference power generation module constitute heating agent
Closed circuit, described cooling water container, water pump and temperature-difference power generation module constitute the closed circuit of coolant, and the described temperature difference is sent out
Electricity module connects the accumulator for storing electricity.
The present invention compared with prior art, the method have the advantages that the present invention may utilize existing Coal Fire Fields
The boring of district's grouting disposes heat conduction pipeline in advance, extracts flame range heat by the thermal convection current of heating agent, saves Construction Cost,
And indirectly take away flame range heat, reduce flame range temperature, accelerate flame range and administer, save fire extinguishing material usage simultaneously, reduce
Flame range treatment cost；Use thermoelectric generation that the heat energy extracted is generated electricity, it is achieved that the recycling of waste heat, solve
Determined remote districts resident and power supply for construction problem；Distributed thermo-electric generation system technique is simple, has mobility, is easy to
Operation and maintenance, uses the extraction of distributed discarded thermal resource；Use adjustable miniature circulating pump, it is possible to by regulating respectively
Heating agent and the flow of cooling water, improve generating efficiency.
As improvement, described temperature-difference power generation module includes heating agent heat conduction pipeline, thermo-electric generation sheet group and cooling water-cooled
Pipeline, described thermo-electric generation sheet group is arranged between heating agent heat conduction pipeline and cooling water-cooled pipeline, described insulation heating agent
Container is provided with heating agent outlet and entrance, and described heat medium pump is connected with the outlet of insulation heat medium container, described heating agent heat conduction
Pipeline one end is connected one end with the outlet of insulation heat medium container and connects and composes closed circuit with the entrance being incubated heat medium container, described
Cooling water container be provided with outlet and entrance, described cooling water-cooled pipeline one end is connected one with the outlet cooling down water container
End connects and composes closed circuit with the entrance of cooling water container.This kind of temperature-difference power generation module simple in construction, respectively with insulation heating agent
Constituting heating agent loop and coolant loop between container and cooling water container, described heating agent can use oil or water, and coolant is permissible
Using water-cooled, compact overall structure is practical, and generating efficiency is high.
As improvement, the height of described cooling water-cooled pipeline is identical with the height of cooling water container, it is ensured that heat radiation
Effect, reduces unnecessary acting.
As improvement, also include that support, described cooling water container are arranged on support.
As improvement, described heat medium pump is the high temperature resistant circulating pump of regulating flow quantity size, and described water pump is adjustable
The water pump of amount of restriction size, can regulate the flow of heating agent and coolant when specifically used according to the temperature of insulation heat medium container,
Improve the generating efficiency of temperature-difference power generation module.
As improvement, described underground heat conduction pipeline is the seam aluminium alloy steel pipe with preferable heat conductivity, and heat conductivity well may be used
Make heating agent absorb heat, quick heating from surrounding, improve the utilization rate of heat.
As improvement, it is provided with temperature sensor and pressure transducer inside described insulation heat medium container, when hypertonia
Relief valve releasing pressure automatically, can improve thermo-electric generation according to the temperature regulation heat medium pump in insulation heat medium container and the flow of water pump
The generating efficiency of module.
As improvement, described surface drilling is built with preventing the sleeve pipe of collapse hole, and its tubing is stainless steel tube, high temperature resistant,
Anticorrosive and antioxidation.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of distributed coal-field fire waste heat electricity generation system of the present invention.
Fig. 2 is the structural representation of the temperature-difference power generation module of a kind of distributed coal-field fire waste heat electricity generation system of the present invention
Figure.
As shown in the figure: 1, coal-field fire, 2, surface drilling, 3, underground heat conduction pipeline, 4, insulation heat medium container, 5, pressure release
Valve, 6, temperature-difference power generation module, 6.1, heating agent heat conduction pipeline, 6.2, thermo-electric generation sheet group, 6.3, cooling water-cooled pipeline, 7, cooling
Water container, 8, heat medium pump, 9, water pump, 10, accumulator, 11, support, 12, pipeline.
Detailed description of the invention
The present invention is described in further detail below in conjunction with the accompanying drawings.
In conjunction with accompanying drawing, a kind of distributed coal-field fire waste heat electricity generation system, including coal-field fire 1, at described coal
Field flame range 1 is provided with the surface drilling 2 under in depth, is provided with the underground heat conduction pipeline 3 that bottom is obstructed in surface drilling 2, described
The top of underground heat conduction pipeline 3 be provided with the insulation heat medium container 4 communicated, described insulation heat medium container 4 is provided with relief valve
5, also include temperature-difference power generation module 6, cooling water container 7 and the insulation heat medium pump 8 that is connected of heat medium container 4 and with cool down water container 7
The water pump 9 connected, described insulation heat medium container 4, heat medium pump 8 and temperature-difference power generation module 6 constitute the closed circuit of heating agent, described
Cooling water container 7, water pump 9 and temperature-difference power generation module 6 constitute the closed circuit of coolant, described temperature-difference power generation module 6 connects
There is the accumulator 10 for storing electricity.
Described temperature-difference power generation module 6 includes heating agent heat conduction pipeline 6.1, thermo-electric generation sheet group 6.2 and cooling water-cooled pipe
Road 6.3, described thermo-electric generation sheet group 6.2 is arranged between heating agent heat conduction pipeline 6.1 and cooling water-cooled pipeline 6.3, described
Insulation heat medium container 4 be provided with heating agent outlet and entrance, described heat medium pump 8 be incubated heat medium container 4 outlet be connected, institute
Heating agent heat conduction pipeline 6.1 one end stated is connected one end with the outlet of insulation heat medium container 4 and is connected with the entrance of insulation heat medium container 4
Constitute closed circuit, described cooling water container 7 be provided with outlet and entrance, described cooling water-cooled pipeline 6.3 one end with
The outlet of cooling water container 7 connects one end and connects and composes closed circuit with the entrance cooling down water container 7.
The height of described cooling water-cooled pipeline 6.3 is identical with the height of cooling water container 7.
Described thermo-electric generation sheet group 6.2 is that 100 pieces of thermo-electric generation sheet connection in series-parallel combine composition.
Also include that support 11, described cooling water container 7 are arranged on support 11.
The described high temperature resistant circulating pump that heat medium pump 8 is regulating flow quantity size, described water pump 9 is that regulating flow quantity is big
Little water pump.
Described underground heat conduction pipeline 3 is the seam aluminium alloy steel pipe with preferable heat conductivity.
Described insulation heat medium container 4 is internal is provided with temperature sensor and pressure transducer, and when hypertonia, relief valve 5 is certainly
Dynamic pressure release.
In a particular embodiment, the present invention can directly utilize the vertical drilling of coal-field fire enforcement slip casting, it is possible at coal
Field flame range is arranged from new boring and is installed underground heat conduction pipeline, and heat conduction pipeline upper end, underground connects insulation heat medium container, to heat preservation hot
Injecting heating agent in matchmaker's container, in order to absorb coal-field fire heat, the heating agent in insulation heat medium container rises under the effect of thermal convection current
Temperature, heat medium pump extraction heating agent persistently provides thermal source for temperature-difference power generation module hot junction, and water pump then extracts the cooling in cooling water container
Water is that temperature-difference power generation module is cold supports continuous heat radiation, promotes temperature-difference power generation module to generate electricity, and electrical power storage, in accumulator, is incubated heating agent
When container internal pressure is too high, by relief valve pressure release, temperature-difference power generation module can be heat medium pump and water pump offer electric energy, by respectively
Regulation heat medium pump and the flow of water pump, improve the generating efficiency of temperature-difference power generation module.
Surface vertical borehole is built with sleeve pipe to prevent collapse hole, and in insulation heat medium container, temperature sensing is arranged on bottom and top
Device and pressure transducer, the relief valve releasing pressure automatically when hypertonia.
Assembly of the invention can arrange multiple in order to reclaim heat on coal-field fire, and native system is simple and practical, just
In mobile and maintenance, it extracts heat energy according to flame range existence conditions and carries out distributed power generation, decreases heat resource waste, with
Time preferably solve remote districts resident and workman's need for electricity, there is wide applicability.
Being described the present invention and embodiment thereof above, this description does not has restricted, shown in accompanying drawing yet
Simply one of embodiments of the present invention, actual structure is not limited thereto.If the generally speaking ordinary skill of this area
Personnel are enlightened by it, in the case of without departing from the invention objective, design and this technical scheme phase without creative
As frame mode and embodiment, protection scope of the present invention all should be belonged to.
Claims (9)
1. a distributed coal-field fire waste heat electricity generation system, including coal-field fire (1), it is characterised in that: described
The surface drilling (2) that coal-field fire (1) is provided with under in depth, is provided with the underground heat pipe that bottom is obstructed in surface drilling (2)
Road (3), the top of described underground heat conduction pipeline (3) is provided with the insulation heat medium container (4) communicated, described insulation heat medium container
(4) it is provided with relief valve (5), also includes that temperature-difference power generation module (6), cooling water container (7) are connected with insulation heat medium container (4)
Heat medium pump (8) and with cooling water container (7) water pump (9) that is connected, described insulation heat medium container (4), heat medium pump (8) and temperature
Difference electricity generation module (6) constitutes the closed circuit of heating agent, described cooling water container (7), water pump (9) and temperature-difference power generation module (6)
Constituting the closed circuit of coolant, described temperature-difference power generation module (6) connects the accumulator (10) for storing electricity.
One the most according to claim 1 distributed coal-field fire waste heat electricity generation system, it is characterised in that: described
Temperature-difference power generation module (6) includes heating agent heat conduction pipeline (6.1), thermo-electric generation sheet group (6.2) and cooling water-cooled pipeline (6.3),
Described thermo-electric generation sheet group (6.2) is arranged between heating agent heat conduction pipeline (6.1) and cooling water-cooled pipeline (6.3), described
Insulation heat medium container (4) be provided with heating agent outlet and entrance, described heat medium pump (8) with insulation heat medium container (4) outlet
Connecting, described heating agent heat conduction pipeline (6.1) one end is connected one end and insulation heat medium container with the outlet of insulation heat medium container (4)
(4) entrance connects and composes closed circuit, and described cooling water container (7) is provided with outlet and entrance, and described cooling water dissipates
Pipe line (6.3) one end is connected one end with the outlet of cooling water container (7) and connects and composes circulation with the entrance cooling down water container (7)
Loop.
One the most according to claim 2 distributed coal-field fire waste heat electricity generation system, it is characterised in that: described
The height of cooling water-cooled pipeline (6.3) is identical with the height of cooling water container (7).
One the most according to claim 2 distributed coal-field fire waste heat electricity generation system, it is characterised in that: described
Thermo-electric generation sheet group (6.2) is that 100 pieces of thermo-electric generation sheet connection in series-parallel combine composition.
One the most according to claim 1 distributed coal-field fire waste heat electricity generation system, it is characterised in that: also include
Support (11), described cooling water container (7) is arranged on support (11).
One the most according to claim 1 distributed coal-field fire waste heat electricity generation system, it is characterised in that: described
Heat medium pump (8) is the high temperature resistant circulating pump of regulating flow quantity size, the described water pump that water pump (9) is regulating flow quantity size.
One the most according to claim 1 distributed coal-field fire waste heat electricity generation system, it is characterised in that: described
Underground heat conduction pipeline (3) is the seam aluminium alloy steel pipe with preferable heat conductivity.
One the most according to claim 1 distributed coal-field fire waste heat electricity generation system, it is characterised in that: described guarantor
Temperature heat medium container (4) is internal is provided with temperature sensor and pressure transducer, relief valve (5) releasing pressure automatically when hypertonia.
One the most according to claim 1 distributed coal-field fire waste heat electricity generation system, it is characterised in that: described
Surface drilling (2) is built with the sleeve pipe preventing collapse hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610806623.7A CN106288465A (en) | 2016-09-06 | 2016-09-06 | A kind of distributed coal-field fire waste heat electricity generation system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610806623.7A CN106288465A (en) | 2016-09-06 | 2016-09-06 | A kind of distributed coal-field fire waste heat electricity generation system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679207A (en) * | 2017-01-09 | 2017-05-17 | 中国矿业大学 | Method for extracting heat energy of underground high-temperature area of coal field fire area |
| CN106787074A (en) * | 2017-01-09 | 2017-05-31 | 中国矿业大学 | A kind of coal-field fire fire extinguishing embedded direct electric power generator of drilling |
| CN108534380A (en) * | 2018-06-15 | 2018-09-14 | 西安科技大学 | A kind of extraction of coal-field fire thermal energy and the system of utilizing based on temperature difference electricity generation device |
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| US4047093A (en) * | 1975-09-17 | 1977-09-06 | Larry Levoy | Direct thermal-electric conversion for geothermal energy recovery |
| US20030010652A1 (en) * | 2001-07-16 | 2003-01-16 | Hunt Robert Daniel | Method of enhanced heat extraction from a geothermal heat source for the production of electricity thermoelectrically and mechanically via the high-pressure injection of a cryogen into a U-tube or open tube heat exchanger within a geothermal heat source, such as a producing or depleted oil well or gas well, or such as a geothermal water well, or such as hot dry rock; and, method of air-lift pumping water; and, method of electrolyzing the water into hydrogen and oxygen using the electricity genarated |
| CN103161694A (en) * | 2011-12-19 | 2013-06-19 | 陕西科林能源发展股份有限公司 | Geothermal power generation device |
| CN204304840U (en) * | 2014-11-13 | 2015-04-29 | 西安博昱新能源有限公司 | A kind of geothermal power generation plant |
| CN105226997A (en) * | 2015-10-03 | 2016-01-06 | 淄博夸克医药技术有限公司 | A kind of renewable new forms of energy are converted into the device of electric energy |
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2016
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Patent Citations (5)
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| US4047093A (en) * | 1975-09-17 | 1977-09-06 | Larry Levoy | Direct thermal-electric conversion for geothermal energy recovery |
| US20030010652A1 (en) * | 2001-07-16 | 2003-01-16 | Hunt Robert Daniel | Method of enhanced heat extraction from a geothermal heat source for the production of electricity thermoelectrically and mechanically via the high-pressure injection of a cryogen into a U-tube or open tube heat exchanger within a geothermal heat source, such as a producing or depleted oil well or gas well, or such as a geothermal water well, or such as hot dry rock; and, method of air-lift pumping water; and, method of electrolyzing the water into hydrogen and oxygen using the electricity genarated |
| CN103161694A (en) * | 2011-12-19 | 2013-06-19 | 陕西科林能源发展股份有限公司 | Geothermal power generation device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679207A (en) * | 2017-01-09 | 2017-05-17 | 中国矿业大学 | Method for extracting heat energy of underground high-temperature area of coal field fire area |
| CN106787074A (en) * | 2017-01-09 | 2017-05-31 | 中国矿业大学 | A kind of coal-field fire fire extinguishing embedded direct electric power generator of drilling |
| WO2018126572A1 (en) * | 2017-01-09 | 2018-07-12 | 中国矿业大学 | Direct power generation device embedded in fire extinguishing drill hole in coalfield fire area |
| WO2018126573A1 (en) * | 2017-01-09 | 2018-07-12 | 中国矿业大学 | Method for extracting thermal energy of underground high temperature area of coal field fire zone |
| US10816241B2 (en) | 2017-01-09 | 2020-10-27 | China University Of Mining And Technology | Method for extracting thermal energy in underground high temperature area of coalfield fire area |
| CN108534380A (en) * | 2018-06-15 | 2018-09-14 | 西安科技大学 | A kind of extraction of coal-field fire thermal energy and the system of utilizing based on temperature difference electricity generation device |
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