CN216114281U - Comprehensive energy supply system for coal mine - Google Patents
Comprehensive energy supply system for coal mine Download PDFInfo
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- CN216114281U CN216114281U CN202121892386.3U CN202121892386U CN216114281U CN 216114281 U CN216114281 U CN 216114281U CN 202121892386 U CN202121892386 U CN 202121892386U CN 216114281 U CN216114281 U CN 216114281U
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- 239000003245 coal Substances 0.000 title claims abstract description 54
- 238000010438 heat treatment Methods 0.000 claims abstract description 144
- 239000002918 waste heat Substances 0.000 claims abstract description 43
- 238000003287 bathing Methods 0.000 claims abstract description 37
- 238000004146 energy storage Methods 0.000 claims abstract description 35
- 238000005338 heat storage Methods 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 46
- 238000010248 power generation Methods 0.000 claims description 24
- 238000001816 cooling Methods 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 2
- 230000000295 complement effect Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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Abstract
The utility model discloses a coal mine comprehensive energy supply system, which belongs to the field of comprehensive energy supply and comprises a power supply system, a heating system, an energy storage system, a load system and a control system, wherein wind and photovoltaic equipment is arranged on an idle roof and the ground in a coal mine by fully utilizing the idle roof and the ground, and a multi-energy complementary clean power supply is created; according to the type of the heating tail end, the coal mine heating load is divided into a high-grade heating load and a low-grade heating load, and according to the characteristics of waste heat utilization equipment, a high-temperature heat exchanger and an electric boiler as heat sources, a low-temperature heater and a high-temperature heater are arranged, so that the gradient utilization of a heating system is realized; the reliability of the power supply equipment is improved through the electric energy storage equipment, peak clipping and valley filling are realized, the price difference and profit overlap of the power grid peak valley are realized, and the heat storage tank meets the requirements of heating at night and bathing by workers; the control system flexibly controls the operation modes of the power supply system, the heating system, the energy storage system and the load system, and constructs a comprehensive energy clean energy supply system which is suitable for coal mines and has the advantages of multi-energy complementation, cascade utilization, high efficiency and low carbon.
Description
Technical Field
The utility model relates to a comprehensive energy supply system for a coal mine, belongs to the field of comprehensive energy supply, and particularly relates to a comprehensive energy clean supply system which is used for coal mine and has the advantages of multi-energy complementation, cascade utilization and high efficiency and low carbon.
Background
Compared with other enterprises, the coal mining enterprises have the advantages that the sites are generally located in the region with wide coverage and sparse population, so that the power load is higher, and the power cost is higher; in the coal mining process, a large amount of mine water, ventilation air in a mine air shaft field and other waste heat resources exist; the plant area is provided with a plurality of roofs and open areas, and photovoltaic, wind power and solar heat collecting devices can be arranged. At present, coal-fired boilers below 20t/h are generally adopted for heating of coal enterprises, the capacity is small, pollutant discharge is difficult to control, the coal-fired boilers are comprehensively controlled, and clean energy supply substitution of coal mine comprehensive energy is realized, so that the method is an important measure for preventing and treating air pollution in China.
From the existing patent retrieval, some researches on the aspects of green heat supply, waste heat recovery, comprehensive energy supply and the like of the coal mine are developed, for example, a utility model patent with application number of 201921534350.0 provides the method for fully recovering various waste heat resources of the coal mine to replace the heat supply of the traditional coal-fired boiler; for example, the utility model with application number 202021652191.7 provides an integrated system of waste heat recovery and solar energy collection to meet the requirements of coal mine heating, refrigeration and bathing hot water preparation; the utility model discloses a utility model patent of application number 201920524450.9, the heat supply pipe network system of energy storage and waste heat recovery integration has been proposed, realizes the energy saving and emission reduction in coal mine. But does not combine the advantages of coal mine areas and the self power demand, and designs a coal mine comprehensive energy supply system containing new energy power generation, waste heat utilization and energy storage according to the thinking of temperature pair and cascade utilization and the heating demands in different seasons.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art, and provides a green low-carbon comprehensive energy supply system which is reasonable in structural design and can fully utilize the existing idle roof and open ground of a coal mine and various waste heat resources of the coal mine to build temperature contra-aperture and gradient utilization.
The technical scheme adopted by the utility model for solving the problems is as follows: the utility model provides a colliery energy integration energy supply system which characterized in that, includes power supply system, heating system, energy storage system, load system and control system, control system and power supply system, heating system, energy storage system and load system are connected, wherein:
the power supply system comprises wind power equipment, photovoltaic power generation equipment, a power grid and electric energy storage equipment;
the heating system comprises a heating heat storage tank, a bathing heat storage tank, an electric boiler, solar heat collection equipment, waste heat utilization equipment, a high-temperature heat exchanger and a low-temperature heat exchanger;
the energy storage system comprises electric energy storage equipment, a heating heat storage tank and a bathing heat storage tank;
the load system comprises an electric load device, a high-grade heating load device, a cold load device, a bathing load device and a low-grade heating load device;
the wind power equipment, the photovoltaic power generation equipment and the power grid are connected with the electric energy storage equipment, the electric boiler, the solar heat collection equipment, the waste heat utilization equipment and the electric load device, the electric boiler and the solar heat collection equipment are connected with the high-temperature heat exchanger, the waste heat utilization equipment is connected with the low-temperature heat exchanger, one path of the low-temperature heat exchanger is connected with the high-temperature heat exchanger through a first three-way control valve, the other path of the low-temperature heat exchanger is directly connected with the high-temperature heat exchanger, the high-temperature heat exchanger is connected with the heating heat storage tank, the bathing heat storage tank and the bathing load device, the high-temperature heat exchanger is also connected with the high-grade heating load device and the low-grade heating load device through a second three-way control valve, the high-grade heating load device, the cold load device and the low-grade heating load device are connected with the low-temperature heat exchanger, and the low-grade heating load device is connected with the first three-way control valve, the low-temperature heat exchanger is connected with a bath water inlet pipe.
Furthermore, the power supply system makes full use of the existing idle roof and open space of the coal mine to arrange new energy power generation equipment such as wind power equipment and photovoltaic power generation equipment, and improves the new energy power consumption ratio of the coal mine.
The wind power equipment and the photovoltaic power generation equipment are used in a mode of 'self-generation and self-utilization, and residual electricity is on line', and the generated electricity preferentially supplies power to the power consumption equipment in the load system and the heating system.
The wind power equipment and the photovoltaic power generation equipment can supplement the power load of the coal mine in the daytime, and the wind power equipment can also supplement the power load of the coal mine at night.
Furthermore, the electric energy storage equipment can realize peak clipping and valley filling of the electric power of the power grid, and realize peak-valley price difference arbitrage in areas where peak-valley electricity is implemented.
The electric energy storage equipment also improves the power supply reliability of key equipment of the coal mine, and guarantees the safety of coal mine equipment and personnel.
Furthermore, the heating system realizes the gradual heating of the heating circulating water through the low-temperature heat exchanger and the high-temperature heat exchanger according to different temperature characteristics of the solar heat collecting equipment and the waste heat utilization equipment.
The waste heat recovered by the waste heat utilization equipment comprises all available waste heat resources of coal mines such as coal mine water waste heat, mine return air waste heat, air compressor waste heat, bath water waste heat and the like, and the heating circulating water is heated to 60 ℃.
The waste heat utilization equipment recovers low-grade heat energy, primary heating can be realized, and heating circulating water is heated to 60 ℃ in the low-temperature heat exchanger and is supplied to a low-grade heating load device.
The solar heat collecting device is a high-efficiency photo-thermal conversion component, secondary heating of heating circulating water is achieved, coal mine heating circulating water is heated to 80-100 ℃ in the high-temperature heat exchanger, and when the temperature of bathing hot water is insufficient, the bathing hot water is heated to 60 ℃ through the solar heat collecting device.
The electric boiler is used as an auxiliary heat source and is put into operation when the heat supply capacity of the solar heat collecting equipment and the waste heat utilization equipment is insufficient, and the electric boiler adopts a high-voltage electrode boiler and has the characteristics of simple system, small floor area, quick start and stop and the like.
The heating heat storage tank is used for storing redundant heating circulating hot water, and the bathing heat storage tank is used for storing redundant bathing hot water.
Further, the load system divides the coal mine heating load device into a high-grade heating load device and a low-grade heating load device according to the type of the heating tail end.
The heating end of the low-grade heating load device is a radiator, and the heating end of the high-grade heating load device is a fan coil.
The high-grade heating load device and the low-grade heating load device can cut off the supply of heating circulating water to a heating system through the first three-way control valve and the second three-way control valve in a non-heating period, and provide hot water for a cold load device and workers for bathing.
The cold load device utilizes high-temperature hot water for refrigeration to provide cold load for the coal mine summer buildings.
The bathing load device directly heats water to 60 ℃ by solar heat collecting equipment or an electric boiler for workers to bathe.
Furthermore, the control system realizes flexible control of the operation modes of the power supply system, the heating system, the energy storage system and the load system.
Compared with the prior art, the utility model has the following advantages and effects: according to the utility model, a source network load and storage integrated system suitable for coal mine comprehensive energy supply is constructed by arranging a power supply system, a heating system, an energy storage system and a load system; the all-weather green power supply of the coal mine is realized through the complementation of wind power generation and photovoltaic power generation; according to the characteristics of heating end equipment, coal mine heating load is divided into low-grade heating load and high-grade heating load, efficient cascade utilization of different heat sources is realized through complementation of solar heat collection equipment, waste heat utilization equipment and an electric boiler, and the reliability and the economy of a heating system are improved; the peak clipping and valley filling of the power grid are realized by arranging the electric energy storage equipment, and the reliability of coal mine power supply is improved; the heating load requirement of the coal mine at night is met by arranging the heat storage tank.
Drawings
FIG. 1 is a schematic diagram of the system architecture of the present invention.
In the figure: the system comprises a power supply system A, a heating system B, an energy storage system C, a load system D and a control system E; the system comprises a wind power device 1, a photovoltaic power generation device 2, a power grid 3, an electric energy storage device 4, a heating heat storage tank 5, a bathing heat storage tank 6, an electric boiler 7, a solar heat collection device 8, a waste heat utilization device 9, a high-temperature heat exchanger 10, a bathing water inlet pipe 11, a one-way control valve 12, a low-temperature heat exchanger 13, an electric load device 14, a high-grade heating load device 15, a cold load device 16, a bathing load device 17, a low-grade heating load device 18 and a two-way control valve 19.
Detailed Description
The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.
Examples are given.
Referring to fig. 1, in this embodiment, a coal mine comprehensive energy supply system includes power supply system a, heating system B, energy storage system C, load system D and control system E, and control system E is connected with power supply system a, heating system B, energy storage system C and load system D, wherein:
the power supply system A comprises wind power equipment 1, photovoltaic power generation equipment 2, a power grid 3 and electric energy storage equipment 4;
the heating system B comprises a heating heat storage tank 5, a bathing heat storage tank 6, an electric boiler 7, solar heat collection equipment 8, waste heat utilization equipment 9, a high-temperature heat exchanger 10 and a low-temperature heat exchanger 13;
the energy storage system C comprises an electric energy storage device 4, a heating heat storage tank 5 and a bathing heat storage tank 6;
the load system D comprises an electric load device 14, a high-grade heating load device 15, a cold load device 16, a bathing load device 17 and a low-grade heating load device 18;
the wind power equipment 1, the photovoltaic power generation equipment 2 and the power grid 3 are connected with an electric energy storage device 4, an electric boiler 7, a solar heat collection device 8, a waste heat utilization device 9 and an electric load device 14, the electric boiler 7 and the solar heat collection device 8 are connected with a high-temperature heat exchanger 10, the waste heat utilization device 9 is connected with a low-temperature heat exchanger 13, one path of the low-temperature heat exchanger 13 is connected with the high-temperature heat exchanger 10 through a first three-way control valve 12, the other path of the low-temperature heat exchanger 13 is directly connected with the high-temperature heat exchanger 10, the high-temperature heat exchanger 10 is connected with a heating and heat storage tank 5, a bathing and heat storage tank 6 and a bathing load device 17, the high-temperature heat exchanger 10 is also connected with a high-grade heating load device 15 and a cold load device 16 through a second three-way control valve 19, the high-grade heating load device 15, the cold load device 16 and the low-grade heating load device 18 are connected with the low-temperature heat exchanger 13, the low-grade heating load device 18 is connected with the first three-way control valve 12, the low temperature heat exchanger 13 is connected with a bath water inlet pipe 11.
In this embodiment, power supply system a makes full use of the existing idle roof in the colliery and arranges new forms of energy power generation equipment such as wind power generation equipment 1, photovoltaic power generation equipment 2 with vacant lot, improves colliery new forms of energy power consumption and accounts for the ratio.
The wind power equipment 1 and the photovoltaic power generation equipment 2 are used in a mode of 'self-generation and self-utilization and residual power on-line', and the generated power preferentially supplies power to power consumption equipment in the load system D and the heating system B.
Wind power generation equipment 1 and photovoltaic power generation equipment 2 can supply colliery daytime power consumption load, and wind power generation equipment 1 can also supply colliery night power consumption load.
The power grid 3 can provide supplement for coal mine power supply, and provides stable power for the coal mine when wind power and photovoltaic power generation are insufficient.
In this embodiment, the electric energy storage device 4 can realize peak clipping and valley filling of the electric power of the power grid 3, and realize peak-valley price difference arbitrage in the area where the peak-valley electricity is implemented.
The electric energy storage device 4 also improves the power supply reliability of key equipment of the coal mine, and guarantees the safety of coal mine equipment and personnel.
In this embodiment, the heating system B heats the heating circulating water step by the low temperature heat exchanger 13 and the high temperature heat exchanger 10 according to different temperature characteristics of the solar heat collecting device 8 and the waste heat utilization device 9.
The waste heat recovered by the waste heat utilization equipment 9 comprises all available waste heat resources of coal mines such as coal mine water waste heat, mine return air waste heat, air compressor waste heat, bath water waste heat and the like, and the heating circulating water is heated to 60 ℃.
The waste heat utilization equipment 9 recovers low-grade heat energy, primary heating can be realized, and heating circulating water is heated to 60 ℃ in the low-temperature heat exchanger 13 and is supplied to the low-grade heating load device 18. The low-temperature heating hot water is divided into two paths through a first three-way control valve 12, one path is directly supplied to a low-grade heating load device 18, and the other path enters a high-temperature heat exchanger 10 to be continuously heated.
The solar heat collecting device 8 is a high-efficiency photothermal conversion component, and heats the heating circulating water to 80-100 ℃.
The solar heat collecting device 8 realizes secondary heating, coal mine heating circulating water is heated to 80-100 ℃ in the high-temperature heat exchanger 10, and when the temperature of the bathing hot water is insufficient, the bathing hot water is heated to 60 ℃ through the solar heat collecting device 8.
The electric boiler 7 is used as an auxiliary heat source and is put into operation when the heat supply capacity of the solar heat collecting equipment 8 and the waste heat utilization equipment 9 is insufficient, and the electric boiler 7 adopts a high-voltage electrode boiler and has the characteristics of simple system, small floor area, quick start and stop and the like.
The heating heat storage tank 5 is used for storing redundant heating circulating hot water, and the bathing heat storage tank 6 is used for storing redundant bathing hot water.
In this embodiment, the load system D divides the coal mine heating load device into a high-grade heating load device 15 and a low-grade heating load device 18 according to the type of the heating end.
The heating end of the low-grade heating load device 18 is a radiator, and the heating end of the high-grade heating load device 15 is a fan coil.
In the non-heating period, the high-grade heating load device 15 and the low-grade heating load device 18 can cut off the supply of heating circulating water to the heating system B through the first three-way control valve 12 and the second three-way control valve 19 so as to provide hot water for the cold load device 16 and workers for bathing.
In the non-heating season without the building heating load, the heat recovered by the waste heat utilization equipment 9 is reduced, the pipeline between the first three-way control valve 12 and the low-grade heating load device 18 is closed, the pipeline between the second three-way control valve 19 and the high-grade heating load device 15 is closed, and the heating system B provides high-temperature hot water for refrigeration for the cooling load device 16 and provides cooling load for the coal mine building.
The cold load device 16 utilizes high-temperature hot water for refrigeration to provide cold load for the coal mine summer buildings.
The bathing load device 17 directly heats water to 60 ℃ by the solar heat collecting equipment 8 or the electric boiler 7 for workers to bathe.
In this embodiment, the control system E is an existing product, and realizes flexible control of the operation modes of the power supply system a, the heating system B, the energy storage system C, and the load system D.
The working method comprises the following steps: the method is characterized in that wind-solar-electric equipment is mounted by fully utilizing idle roofs and ground open spaces of coal mines, a multi-energy complementary clean power supply is created, the wind-electric equipment 1 and the photovoltaic power generation equipment 2 adopt a 'self-generation self-use and residual electricity internet access' mode to provide electric energy for electric equipment in a heating system B and a load system D, when the new energy electric load is insufficient, electric power of a power grid 3 is used for supplying power for the electric equipment in the coal mines, and an electric energy storage device 4 is used as a peak-valley price difference for arbitrage; the heating system B realizes primary heating through the waste heat utilization equipment 9, heating circulating water is heated to 60 ℃, the solar heat collection equipment 8 realizes secondary heating, heating circulating water is heated to 80-100 ℃, the electric boiler 7 is used as an auxiliary heat source, when the heat supply capacity of the solar heat collection equipment 8 and the waste heat utilization equipment 9 is insufficient, the heating heat storage tank 5 is used for storing redundant heating circulating hot water, and the bathing heat storage tank 6 is used for storing redundant bathing hot water, so that the requirements of a high-grade heating load device 15 and a bathing load device 17 at night are met; according to the type of the heating tail end, the coal mine heating load is divided into a high-grade heating load and a low-grade heating load, wherein the high-grade heating load is the heating tail end of a fan coil of a coal mine large-area factory building, an office building and the like, the low-grade heating load is the heating tail end of a heating radiator of an apartment of workers, in the non-heating season without the building heating load, the heat recovered by the waste heat utilization equipment 9 is reduced, a pipeline between a first three-way control valve 12 and a low-grade heating load device 18 is closed, a second three-way control valve 19 and a pipeline between the high-grade heating load device 15 are closed, a heating system B provides high-temperature hot water for refrigeration for a cold load device 16, the cold load is provided for a coal mine building, bathing hot water enters a low-temperature heat exchanger 13 from a bathing water inlet pipe 11 for primary heating and then enters a high-temperature heat exchanger 10, and the hot water is heated to 60 ℃ for the workers to bathe; the control system E flexibly controls the operation modes of the power supply system A, the heating system B, the energy storage system C and the load system D.
Those not described in detail in this specification are well within the skill of the art.
Although the present invention has been described with reference to the above embodiments, it should be understood that the scope of the present invention is not limited thereto, and that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the present invention.
Claims (3)
1. The utility model provides a colliery comprehensive energy supply system which characterized in that, includes power supply system (A), heating system (B), energy storage system (C) and load system (D), wherein:
the power supply system (A) comprises wind power equipment (1), photovoltaic power generation equipment (2), a power grid (3) and electric energy storage equipment (4);
the heating system (B) comprises a heating heat storage tank (5), a bathing heat storage tank (6), an electric boiler (7), solar heat collection equipment (8), waste heat utilization equipment (9), a high-temperature heat exchanger (10) and a low-temperature heat exchanger (13);
the energy storage system (C) comprises an electric energy storage device (4), a heating heat storage tank (5) and a bathing heat storage tank (6);
the load system (D) comprises an electric load device (14), a high-grade heating load device (15), a cold load device (16), a bathing load device (17) and a low-grade heating load device (18);
the wind power generation device (1), the photovoltaic power generation device (2) and the power grid (3) are connected with an electric energy storage device (4), an electric boiler (7), a solar heat collection device (8), a waste heat utilization device (9) and an electric load device (14), the electric boiler (7) and the solar heat collection device (8) are connected with a high-temperature heat exchanger (10), the waste heat utilization device (9) is connected with a low-temperature heat exchanger (13), one path of the low-temperature heat exchanger (13) is connected with the high-temperature heat exchanger (10) through a first three-way control valve (12), the other path of the low-temperature heat exchanger (13) is directly connected with the high-temperature heat exchanger (10), the high-temperature heat exchanger (10) is connected with a heating heat storage tank (5), a bathing heat storage tank (6) and a bathing load device (17), the high-temperature heat exchanger (10) is also connected with a high-grade heating load device (15) and a cooling load device (16) through a second three-way control valve (19), the high-grade heating load device (15), the cold load device (16) and the low-grade heating load device (18) are connected with the low-temperature heat exchanger (13), and the low-grade heating load device (18) is connected to the one-way control valve (12).
2. The coal mine integrated energy supply system according to claim 1, further comprising a control system (E), wherein the control system (E) is connected with the power supply system (A), the heating system (B), the energy storage system (C) and the load system (D).
3. The coal mine integrated energy supply system according to claim 1, characterized in that the low temperature heat exchanger (13) is connected with a bath water inlet pipe (11).
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| CN202121892386.3U CN216114281U (en) | 2021-08-13 | 2021-08-13 | Comprehensive energy supply system for coal mine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114719322A (en) * | 2022-04-02 | 2022-07-08 | 中煤能源研究院有限责任公司 | Mining area multi-energy complementary clean heat supply system and use method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114719322A (en) * | 2022-04-02 | 2022-07-08 | 中煤能源研究院有限责任公司 | Mining area multi-energy complementary clean heat supply system and use method |
| CN114719322B (en) * | 2022-04-02 | 2024-04-02 | 中煤能源研究院有限责任公司 | Mining area multifunctional complementary clean heating system and application method thereof |
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