CN211008957U - Offshore wind power compressed air energy storage type heat reservoir - Google Patents
Offshore wind power compressed air energy storage type heat reservoir Download PDFInfo
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- CN211008957U CN211008957U CN201921964862.0U CN201921964862U CN211008957U CN 211008957 U CN211008957 U CN 211008957U CN 201921964862 U CN201921964862 U CN 201921964862U CN 211008957 U CN211008957 U CN 211008957U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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Abstract
The utility model discloses an offshore wind power compressed air energy storage type heat reservoir, which comprises a heat reservoir shell, a hot tank, a cold tank, a one-way pump, a hot tank divergent pipe, a cold tank divergent pipe, a heat reservoir inlet/outlet pipeline, a hot tank inlet/outlet pipeline, a cold tank inlet/outlet pipeline, a trunk pipeline, a hot tank inlet/outlet valve and a cold tank inlet/outlet valve, which can realize the storage and release of the heat energy generated by a high-low pressure air compressor in an intermittent cooling type air heat storage energy storage offshore wind power generation system, and only one-way pump is used through the pipeline design to reduce the total cost, the flow resistance loss when the working medium flows into/out of a tank body can be reduced through the hot tank divergent pipeline and the cold tank divergent pipeline which are respectively arranged at the bottoms of the hot tank and the cold tank, so that the heat reservoir is more energy-saving, the heat reservoir can provide the working stage change reminding for the system state according to the liquid level in the hot tank and the cold tank, so that the system can make the best decision and inform the change of the state of the power grid system in time.
Description
Technical Field
The utility model relates to an offshore wind power generation and air heat-retaining energy storage technology's cross field, concretely relates to be applied to an offshore wind power generation compressed air energy storage formula heat reservoir of indirect cooling type air heat-retaining energy storage offshore wind power generation system.
Background
Offshore wind energy has the advantages of large total reserve, long available hours and close distance to energy consumption, and similar to land wind energy utilization, offshore wind power also has the problem that the output power of an offshore wind power plant is not matched with the requirement of a power grid, and the impact of the offshore wind power on the power grid floats more greatly. By solving the problem, some researchers propose to combine offshore wind power with compressed air, heat storage technology and compressed air energy technology stored underwater, construct an indirect air heat storage energy storage offshore wind power generation system with higher energy conversion efficiency and less land space occupation, and can effectively stabilize the power output of an offshore wind power generation unit so as to better match the requirements of offshore wind power and a power grid. However, the above system scheme does not mention the structural scheme and detailed technical features of the heat reservoir in the system, and if a heat storage technology and an operation method applied to the above system can be developed in a targeted manner, the offshore wind turbine and the heat storage and energy storage system can be promoted to better realize self power regulation, the system is more friendly to a regional power grid, and offshore wind energy can be better utilized by human beings.
Disclosure of Invention
The utility model aims at providing a marine wind power compressed air energy storage formula heat reservoir in order to solve above-mentioned problem, can realize the heat energy storage and the release that produce the crowning low pressure air compressor machine in the system.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
the offshore wind power compressed air energy storage type heat reservoir comprises a heat reservoir shell 1, a hot reservoir 4, a cold reservoir 15, a one-way pump 10, a hot reservoir divergent pipe 13, a cold reservoir divergent pipe 14, a heat reservoir inlet pipeline 17, a heat reservoir outlet pipeline 18, a hot reservoir inlet pipeline 3, a cold reservoir inlet pipeline 12, a hot reservoir outlet pipeline 6, a cold reservoir outlet pipeline 8, a main pipeline 11, a hot reservoir inlet valve 5, a cold reservoir inlet valve 16, a hot reservoir outlet valve 7 and a cold reservoir outlet valve 9, wherein the heat reservoir shell 1 is internally provided with the hot reservoir 4, the cold reservoir 15, the one-way pump 10, the hot reservoir inlet pipeline 3, the cold reservoir inlet pipeline 12, the hot reservoir outlet pipeline 6, the cold reservoir outlet pipeline 8 and the main pipeline 11, the hot reservoir inlet valve 5, the cold reservoir inlet valve 16, the hot reservoir outlet valve 7 and the cold reservoir outlet valve 9 are respectively positioned on the hot reservoir inlet pipeline 3, the cold reservoir inlet pipeline 12, the hot reservoir outlet pipeline 6 and the cold reservoir outlet pipeline 8, the one-way pump 10 is located on the main pipeline 11, the communication position of the hot tank 4 and the hot tank outlet pipeline 6 inflow end is located at the bottom of the hot tank 4, the communication position of the hot tank 4 with the hot tank outlet pipeline 6 inflow end and the hot tank inlet pipeline 3 outflow end is provided with a hot tank divergent pipe 13, the communication position of the cold tank 15 and the cold tank outlet pipeline 8 inflow end is located at the bottom of the cold tank 15, the communication position of the cold tank 15 with the cold tank outlet pipeline 8 inflow end and the cold tank inlet pipeline 12 outflow end is provided with a cold tank divergent pipe 14, the outflow end of the hot tank inlet pipeline 3 is connected with the three-way inflow end of the hot tank outlet pipeline 6, the outflow end of the cold tank inlet pipeline 12 is connected with the three-way inflow end of the cold tank outlet pipeline 8, the inflow end of the hot tank inlet pipeline 3 and the inflow end of the cold tank inlet pipeline 12 are both communicated with the outflow end of the hot reservoir inlet pipeline 17, the outflow ends of the hot tank outlet line 6 and the cold tank outlet line 8 are connected to the inflow end of the main line 11, the outflow end of the main line 11 is connected to the heat reservoir outlet line 18, and the inflow end of the heat reservoir inlet line 17 and the outflow end of the heat reservoir outlet line 18 are connected to the heat exchanger 19.
The heat storage device shell 1, the heat exchanger 19, the high-pressure turbine 21, the low-pressure turbine 20, the high-pressure compressor 22 and the low-pressure compressor 23 are all fixed on the heat storage and energy storage station platform 2, the air storage bag 24 is located at a position which is 500-1000 meters deep below the heat storage and energy storage station platform 2, and the heat storage and energy storage station platform 2 is connected with a booster station of an offshore wind turbine generator set through a submarine cable.
All be provided with liquid level detection device in hot jar 4 and the cold jar 15, hot jar 4, cold jar 15, heat reservoir inlet pipeline 17, heat reservoir outlet pipeline 18, hot jar inlet pipeline 3, cold jar inlet pipeline 12, hot jar outlet pipeline 6, cold jar outlet pipeline 8, trunk line 11, hot jar inlet valve 5, cold jar inlet valve 16, hot jar outlet valve 7 and the outside of cold jar outlet valve 9 all are provided with the heat preservation.
The flow cross section area of the hot tank gradually-expanding pipe 13 and the cold tank gradually-expanding pipe 14 from the pipeline inlet to the pipeline outlet is monotonically increased, the pipeline center lines of the hot tank gradually-expanding pipe 13 and the cold tank gradually-expanding pipe 14 are straight lines, parabolas, ellipses or hyperbolas, and the pipeline lengths of the hot tank gradually-expanding pipe 13 and the cold tank gradually-expanding pipe 14 are respectively more than or equal to 4 times of the maximum flow cross section diameter of the hot tank gradually-expanding pipe 13 and the cold tank gradually-expanding pipe 14 outlet.
The one-way pump 10 takes electricity from the heat storage and energy storage station platform 2.
The three-way inflow end of the hot tank outlet pipeline 6 is positioned on the pipeline between the hot tank outlet valve 7 and the inflow end of the hot tank outlet pipeline 6, and the three-way inflow end of the cold tank outlet pipeline 8 is positioned on the pipeline between the cold tank outlet valve 9 and the inflow end of the cold tank outlet pipeline 8.
The operation method of the offshore wind power compressed air energy storage type heat reservoir mainly comprises three stages, namely a holding stage, a heat storage stage and a heat release stage, wherein the holding stage is that when the output power of an offshore wind power generation unit in an indirect air heat storage and energy storage offshore wind power generation system is within an adjustable range of a power grid, the offshore wind power generation unit directly supplies power to the power grid through a booster station, the offshore wind power compressed air energy storage type heat reservoir does not participate in the work of the indirect air heat storage and energy storage offshore wind power generation system, namely, a hot tank inlet valve 5, a cold tank inlet valve 16, a hot tank outlet valve 7 and a cold tank outlet valve 9 are in a closed state, and a one-way pump 10 is in a non-working state; the heat storage stage is that when the output power of a wind turbine set in the indirect air heat storage and energy storage offshore wind power generation system is larger than the adjustable range of a power grid, a control system on a platform 2 of the heat storage and energy storage station sends an instruction to open a cold tank outlet valve 9 and a hot tank inlet valve 5, the cold tank inlet valve 16 and the hot tank outlet valve 7 are in a closed state, a high-pressure turbine 21 and a low-pressure turbine 20 are in a closed state, the indirect air heat storage and energy storage offshore wind power generation system starts a low-pressure compressor 23, a high-pressure compressor 22 and a one-way pump 10 to convert redundant wind power electric energy into compressed air energy and heat energy, the air is compressed twice by the low-pressure compressor 23 and the high-pressure compressor 22 to obtain compressed air energy and gas heat energy, the compressed air energy is carried by the compressed air and stored in a gas storage bag 24, the working medium flowing out of the cold tank 15, when the working medium liquid level in the cold tank 15 is lower than the set liquid level, the indirect cooling type air heat storage energy storage offshore wind power generation system sends a signal that the indirect cooling type air heat storage energy storage offshore wind power generation system is cut off from the power grid after 10 minutes to the power grid side, and simultaneously sends an instruction that the working mode enters a holding stage from the heat storage stage until the power grid starts to enter a heat release stage after sending a heat release stage instruction; the heat release stage is that when the output power of an offshore wind power generation unit in the indirect air heat storage and energy storage offshore wind power generation system is smaller than the adjustable range of a power grid, a control system sends a command to open a cold tank inlet valve 16 and a hot tank outlet valve 7, the cold tank outlet valve 9 and the hot tank inlet valve 5 are in a closed state, a high-pressure turbine 21, a low-pressure turbine 20 and a one-way pump 10 are started, a low-pressure compressor 23 and a high-pressure compressor 22 are in a closed state, the system exchanges heat between compressed air energy in an air storage bag 24 and heat energy carried by a working medium in a hot tank 4 in a heat exchanger 19 twice in sequence, the compressed air after first heat absorption pushes the high-pressure turbine 21 to do work, the compressed air flowing through the high-pressure turbine 21 pushes the low-pressure turbine 20 to do work after second heat absorption, and the high-pressure turbine 21 and the low-pressure turbine, the working medium flowing out of the hot tank 4 transfers heat to the compressed air in the heat exchanger 19 and then returns to the cold tank 15, when the liquid level of the working medium in the hot tank 4 is lower than a set liquid level, the indirect-cooling type air heat storage and energy storage offshore wind power generation system sends a signal that the indirect-cooling type air heat storage and energy storage offshore wind power generation system is cut off from the power grid after sending 10 minutes to the power grid side, and simultaneously sends an instruction that the working mode enters a holding stage from a heat release stage until the power grid starts to enter a heat storage stage after sending a heat storage stage instruction.
The beneficial effects of the utility model reside in that:
1) at present, a mature technical scheme of a heat reservoir for an indirect cooling type air heat storage and energy storage offshore wind power generation system is not seen. The utility model provides a complete technical characteristics and operation scheme of offshore wind power compressed air energy storage type heat reservoir, which can realize the storage and release of the heat energy generated by the high-low pressure air compressor in the system, the utility model only uses a one-way pump, so the total cost of the heat reservoir is lower, the bottom of the hot tank and the cold tank are respectively provided with a hot tank divergent pipeline and a cold tank divergent pipeline, the hot tank divergent pipeline is arranged at the position communicated with the hot tank outlet pipeline inflow end and the hot tank inlet pipeline outflow end in the hot tank, the cold tank divergent pipeline is arranged at the position communicated with the cold tank outlet pipeline inflow end and the cold tank inlet pipeline outflow end in the cold tank, the heat storage medium can not flow separately when flowing into and out of the hot tank or the cold tank, the flow resistance loss caused by the generation of local vortex in the conventional storage tank is reduced, and the heat reservoir is more energy-saving, in addition, the heat reservoir can provide working stage change reminding for the system state according to working medium liquid levels in the hot tank and the cold tank, so that the system can make an optimal decision and timely inform the change of the state of the power grid system. The utility model discloses can promote offshore wind power unit and heat-retaining energy storage system and realize self power better and adjust, help making better by the human utilization of marine wind energy.
2) The outflow end of the hot tank inlet pipeline is connected with the inflow end of the tee joint of the hot tank outlet pipeline, the outflow end of the cold tank inlet pipeline is connected with the inflow end of the tee joint of the cold tank outlet pipeline, so that the hot tank or the cold tank is only provided with one pipeline interface, the outline of the pipeline interface can completely correspond to the outline of the minimum section of the hot tank divergent pipeline or the cold tank inlet pipeline, the hot tank or the cold tank realizes the inflow and outflow of working media in different operation stages through the interface, the flow resistance loss of the working media flowing into or out of the hot tank or the cold tank is avoided, two pipeline interfaces and two hot tank divergent pipelines need to be respectively arranged on the hot tank and the cold tank, the two pipeline interfaces and two cold tank divergent pipelines are required, and the material cost and the labor cost are reduced.
Drawings
Fig. 1 is the schematic diagram of the compressed air energy storage type heat reservoir for offshore wind power of the utility model.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1, the offshore wind power compressed air energy storage type heat reservoir comprises a heat reservoir shell 1, a hot reservoir 4, a cold reservoir 15, a one-way pump 10, a hot reservoir divergent pipe 13, a cold reservoir divergent pipe 14, a heat reservoir inlet pipeline 17, a heat reservoir outlet pipeline 18, a hot reservoir inlet pipeline 3, a cold reservoir inlet pipeline 12, a hot reservoir outlet pipeline 6, a cold reservoir outlet pipeline 8, a trunk pipeline 11, a hot reservoir inlet valve 5, a cold reservoir inlet valve 16, a hot reservoir outlet valve 7 and a cold reservoir outlet valve 9, wherein the hot reservoir 4, the cold reservoir 15, the one-way pump 10, the hot reservoir inlet pipeline 3, the cold reservoir inlet pipeline 12, the hot reservoir outlet pipeline 6, the cold reservoir outlet pipeline 8 and the trunk pipeline 11 are arranged in the heat reservoir shell 1, the hot reservoir inlet valve 5, the cold reservoir inlet valve 16, the hot reservoir outlet valve 7 and the cold reservoir outlet valve 9 are respectively arranged in the hot reservoir inlet pipeline 3, the cold reservoir inlet pipeline 12, the hot reservoir outlet pipeline 6, the cold reservoir outlet pipeline 8 and the, On the cold tank outlet pipeline 8, the one-way pump 10 is located on the trunk pipeline 11, the communication position of the hot tank 4 and the hot tank outlet pipeline 6 inflow end is located at the bottom of the hot tank 4, the communication position of the hot tank 4 with the hot tank outlet pipeline 6 inflow end and the hot tank inlet pipeline 3 outflow end is provided with a hot tank divergent pipe 13, the communication position of the cold tank 15 and the cold tank outlet pipeline 8 inflow end is located at the bottom of the cold tank 15, the communication position of the cold tank 15 with the cold tank outlet pipeline 8 inflow end and the cold tank inlet pipeline 12 outflow end is provided with a cold tank divergent pipe 14, the outflow end of the hot tank inlet pipeline 3 is connected with the three-way inflow end of the hot tank outlet pipeline 6, the outflow end of the cold tank inlet pipeline 12 is connected with the three-way inflow end of the cold tank outlet pipeline 8, the inflow end of the hot tank inlet pipeline 3 and the inflow end of the cold tank inlet pipeline 12 are both communicated with the outflow end of the heat reservoir inlet pipeline 17, the outflow ends of the hot tank outlet line 6 and the cold tank outlet line 8 are connected to the inflow end of the main line 11, the outflow end of the main line 11 is connected to the heat reservoir outlet line 18, and the inflow end of the heat reservoir inlet line 17 and the outflow end of the heat reservoir outlet line 18 are connected to the heat exchanger 19.
As the utility model discloses a preferred embodiment, heat reservoir shell 1 and heat exchanger 19, high-pressure turbine 21, low pressure turbine 20, high pressure compressor 22 and low pressure compressor 23 all are fixed in on heat-retaining energy storage station platform 2, and gas storage bag 24 is located and is less than the position 500 to 1000 meters deep below the heat-retaining energy storage station platform 2, and heat-retaining energy storage station platform 2 passes through submarine cable and is connected with the booster station of offshore wind power generation unit.
As the preferred embodiment of the present invention, all be provided with liquid level detection device in hot pot 4 and the cold pot 15, hot pot 4, cold pot 15, heat reservoir inlet pipeline 17, heat reservoir outlet pipeline 18, hot pot inlet pipeline 3, cold pot inlet pipeline 12, hot pot outlet pipeline 6, cold pot outlet pipeline 8, trunk line 11, hot pot inlet valve 5, cold pot inlet valve 16, hot pot outlet valve 7 and the outside of cold pot outlet valve 9 all are provided with the heat preservation, can furthest reduce heat transfer and heat reservoir and external heat transfer between the heat reservoir internal part.
As the preferred embodiment of the present invention, the flow cross-sectional area of the hot tank divergent pipe 13 and the cold tank divergent pipe 14 from the pipeline inlet to the pipeline outlet is monotonically increased, the pipeline center line of the hot tank divergent pipe 13 and the cold tank divergent pipe 14 is a straight line or a parabola or an ellipse or a hyperbola, the pipeline length of the hot tank divergent pipe 13 and the cold tank divergent pipe 14 is respectively greater than or equal to 4 times of the maximum flow cross-sectional diameter of the hot tank divergent pipe 13 and the cold tank divergent pipe 14 outlet, the flow rate of the fluid flowing into and out of the hot tank 4 or the cold tank 15 can be gently and transitionally increased to four times or three quarters, and the local flow loss inside the hot tank 4 or the cold tank 15 is significantly reduced.
As a preferred embodiment of the present invention, the unidirectional pump 10 takes electricity from the heat storage and energy storage station platform 2.
As the preferred embodiment of the present invention, the tee-joint inflow end of the hot tank outlet pipeline 6 is located on the pipeline between the hot tank outlet valve 7 and the hot tank outlet pipeline 6, and the tee-joint inflow end of the cold tank outlet pipeline 8 is located on the pipeline between the cold tank outlet valve 9 and the cold tank outlet pipeline 8, so as to avoid two pipeline interfaces and two corresponding divergent pipelines on the hot tank 4 or the cold tank 15.
As shown in fig. 1, the operation method of the offshore wind power compressed air energy storage type heat reservoir of the present invention mainly comprises three stages, namely, a holding stage, a heat storage stage and a heat release stage, wherein the holding stage is that when the output power of the offshore wind power generation unit in the indirect cooling type air heat storage and energy storage offshore wind power generation system is within the adjustable range of the power grid, the offshore wind power generation unit directly supplies power to the power grid through the booster station, the offshore wind power compressed air energy storage type heat reservoir does not participate in the work of the indirect cooling type air heat storage and energy storage offshore wind power generation system, that is, at this time, the hot tank inlet valve 5, the cold tank inlet valve 16, the hot tank outlet valve 7 and the cold tank outlet valve 9 are in a closed state, and the one-way pump 10; the heat storage stage is that when the output power of a wind turbine set in the indirect air heat storage and energy storage offshore wind power generation system is larger than the adjustable range of a power grid, a control system on a platform 2 of the heat storage and energy storage station sends an instruction to open a cold tank outlet valve 9 and a hot tank inlet valve 5, the cold tank inlet valve 16 and the hot tank outlet valve 7 are in a closed state, a high-pressure turbine 21 and a low-pressure turbine 20 are in a closed state, the indirect air heat storage and energy storage offshore wind power generation system starts a low-pressure compressor 23, a high-pressure compressor 22 and a one-way pump 10 to convert redundant wind power electric energy into compressed air energy and heat energy, air is compressed twice by the low-pressure compressor 23 and the high-pressure compressor 22 to obtain compressed air energy and gas heat energy, the compressed air energy is carried by the compressed air and stored in a gas storage bag 24, working medium flowing out from the cold tank 15 exchanges heat, when the working medium liquid level in the cold tank 15 is lower than the set liquid level, the indirect cooling type air heat storage energy storage offshore wind power generation system sends a signal that the indirect cooling type air heat storage energy storage offshore wind power generation system is cut off from the power grid after 10 minutes to the power grid side, and simultaneously sends an instruction that the working mode enters a holding stage from the heat storage stage until the power grid starts to enter a heat release stage after sending a heat release stage instruction; the heat release stage is that when the output power of an offshore wind power generation unit in the indirect air heat storage and energy storage offshore wind power generation system is smaller than the adjustable range of a power grid, a control system sends a command to open a cold tank inlet valve 16 and a hot tank outlet valve 7, the cold tank outlet valve 9 and the hot tank inlet valve 5 are in a closed state, a high-pressure turbine 21, a low-pressure turbine 20 and a one-way pump 10 are started, a low-pressure compressor 23 and a high-pressure compressor 22 are in a closed state, the system exchanges heat between compressed air energy in an air storage bag 24 and heat energy carried by a working medium in a hot tank 4 in a heat exchanger 19 twice in sequence, the compressed air after first heat absorption pushes the high-pressure turbine 21 to do work, the compressed air flowing through the high-pressure turbine 21 pushes the low-pressure turbine 20 to do work after second heat absorption, and the high-pressure turbine 21 and the low-pressure turbine, working medium flowing out of the hot tank 4 transfers heat to compressed air in the heat exchanger 19 and then returns to the cold tank 15, when the liquid level of the working medium in the hot tank 4 is lower than a set liquid level, the indirect-cooling type air heat storage and energy storage offshore wind power generation system sends a signal that the indirect-cooling type air heat storage and energy storage offshore wind power generation system is cut off from a power grid after sending 10 minutes to the power grid side, and simultaneously sends an instruction that a working mode enters a holding stage from a heat release stage until the power grid starts to enter a heat storage stage after sending a heat storage stage instruction.
Claims (6)
1. Offshore wind power compressed air energy storage formula heat reservoir, its characterized in that: the heat storage device comprises a heat storage device shell (1), a hot tank (4), a cold tank (15), a one-way pump (10), a hot tank divergent pipe (13), a cold tank divergent pipe (14), a heat storage device inlet pipeline (17), a heat storage device outlet pipeline (18), a hot tank inlet pipeline (3), a cold tank inlet pipeline (12), a hot tank outlet pipeline (6), a cold tank outlet pipeline (8), a main pipeline (11), a hot tank inlet valve (5), a cold tank inlet valve (16), a hot tank outlet valve (7) and a cold tank outlet valve (9), wherein the hot tank (4), the cold tank (15), the one-way pump (10), the hot tank inlet pipeline (3), the cold tank inlet pipeline (12), the hot tank outlet pipeline (6), the cold tank outlet pipeline (8) and the main pipeline (11) are arranged in the heat storage device shell (1), the hot tank inlet valve (5), the cold tank inlet valve (16), the hot tank outlet valve (7), The cold tank outlet valve (9) is respectively positioned on a hot tank inlet pipeline (3), a cold tank inlet pipeline (12), a hot tank outlet pipeline (6) and a cold tank outlet pipeline (8), the one-way pump (10) is positioned on a trunk pipeline (11), the communication position of the hot tank (4) and the hot tank outlet pipeline (6) inflow end is positioned at the bottom of the hot tank (4), a hot tank divergent pipe (13) is arranged at the communication position of the hot tank (4) with the hot tank outlet pipeline (6) inflow end and the hot tank inlet pipeline (3) outflow end, the communication position of the cold tank (15) and the cold tank outlet pipeline (8) inflow end is positioned at the bottom of the cold tank (15), a cold tank divergent pipe (14) is arranged at the communication position of the cold tank (15) with the cold tank outlet pipeline (8) inflow end and the cold tank inlet pipeline (12) outflow end, the outflow end of the hot tank inlet pipeline (3) is connected with the tee joint of the hot tank outlet pipeline (6), the outflow end of a cold tank inlet pipeline (12) is connected with the inflow end of a tee joint of a cold tank outlet pipeline (8), the inflow end of a hot tank inlet pipeline (3) and the inflow end of the cold tank inlet pipeline (12) are both communicated with the outflow end of a heat reservoir inlet pipeline (17), the outflow end of a hot tank outlet pipeline (6) and the outflow end of the cold tank outlet pipeline (8) are connected with the inflow end of a trunk pipeline (11), the outflow end of the trunk pipeline (11) is connected with a heat reservoir outlet pipeline (18), and the inflow end of the heat reservoir inlet pipeline (17) and the outflow end of the heat reservoir outlet pipeline (18) are connected with a heat exchanger (19).
2. The offshore wind power compressed air energy storage type heat reservoir of claim 1, wherein: the heat reservoir shell (1) and the heat exchanger (19), the high-pressure turbine (21), the low-pressure turbine (20), the high-pressure compressor (22) and the low-pressure compressor (23) are all fixed on the heat storage energy storage station platform (2), the air storage bag (24) is located at a position which is 500-1000 meters deep below the heat storage energy storage station platform (2), and the heat storage energy storage station platform (2) is connected with a booster station of an offshore wind turbine set through a submarine cable.
3. The offshore wind power compressed air energy storage type heat reservoir of claim 1, wherein: all be provided with liquid level detection device in hot jar (4) and cold jar (15), the outside of hot jar (4), cold jar (15), heat reservoir inlet pipeline (17), heat reservoir outlet pipeline (18), hot jar inlet pipeline (3), cold jar inlet pipeline (12), hot jar outlet pipeline (6), cold jar outlet pipeline (8), trunk line (11), hot jar inlet valve (5), cold jar inlet valve (16), hot jar outlet valve (7) and cold jar outlet valve (9) all is provided with the heat preservation.
4. The offshore wind power compressed air energy storage type heat reservoir of claim 1, wherein: the flow cross section area of the hot tank divergent pipe (13) and the cold tank divergent pipe (14) from the pipeline inlet to the pipeline outlet is monotonically increased, the pipeline center lines of the hot tank divergent pipe (13) and the cold tank divergent pipe (14) are straight lines, parabolas, ellipses or hyperbolas, and the pipeline lengths of the hot tank divergent pipe (13) and the cold tank divergent pipe (14) are respectively more than or equal to 4 times of the maximum flow cross section diameter of the hot tank divergent pipe (13) and the cold tank divergent pipe (14) outlet.
5. The offshore wind power compressed air energy storage type heat reservoir of claim 1, wherein: the one-way pump (10) gets electricity from the heat storage and energy storage station platform (2).
6. The offshore wind power compressed air energy storage type heat reservoir of claim 1, wherein: the tee-joint inflow end of the hot tank outlet pipeline (6) is positioned on a pipeline between the hot tank outlet valve (7) and the inflow end of the hot tank outlet pipeline (6), and the tee-joint inflow end of the cold tank outlet pipeline (8) is positioned on a pipeline between the cold tank outlet valve (9) and the inflow end of the cold tank outlet pipeline (8).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921964862.0U CN211008957U (en) | 2019-11-14 | 2019-11-14 | Offshore wind power compressed air energy storage type heat reservoir |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921964862.0U CN211008957U (en) | 2019-11-14 | 2019-11-14 | Offshore wind power compressed air energy storage type heat reservoir |
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| CN211008957U true CN211008957U (en) | 2020-07-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657067A (en) * | 2019-11-14 | 2020-01-07 | 西安热工研究院有限公司 | Offshore wind power compressed air energy storage type heat reservoir and operation method |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657067A (en) * | 2019-11-14 | 2020-01-07 | 西安热工研究院有限公司 | Offshore wind power compressed air energy storage type heat reservoir and operation method |
| CN110657067B (en) * | 2019-11-14 | 2024-03-15 | 西安热工研究院有限公司 | Offshore wind power compressed air energy storage type heat reservoir and operation method |
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