CN220151467U - Heat storage type water turbine and air-steam combined cycle cogeneration system - Google Patents
Heat storage type water turbine and air-steam combined cycle cogeneration system Download PDFInfo
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- CN220151467U CN220151467U CN202321452520.7U CN202321452520U CN220151467U CN 220151467 U CN220151467 U CN 220151467U CN 202321452520 U CN202321452520 U CN 202321452520U CN 220151467 U CN220151467 U CN 220151467U
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- attemperator
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- 238000005338 heat storage Methods 0.000 title claims abstract description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000005485 electric heating Methods 0.000 claims abstract description 60
- 150000003839 salts Chemical class 0.000 claims abstract description 44
- 239000000126 substance Substances 0.000 claims abstract description 44
- 238000010248 power generation Methods 0.000 claims abstract description 13
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 5
- 239000002918 waste heat Substances 0.000 claims description 19
- 238000000605 extraction Methods 0.000 claims description 16
- 238000005086 pumping Methods 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 5
- 238000009825 accumulation Methods 0.000 claims 3
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 8
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
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Abstract
The utility model discloses a heat storage type water turbine and air-steam combined cycle cogeneration system, which comprises a hydroelectric generation unit, an electric heating regulation unit, an electric heating chemical chain/molten salt heat storage unit, an air-steam generation unit and a multi-channel temperature and pressure reduction steam supply unit, wherein the water power generation unit is connected with the electric heating regulation unit; the hydroelectric generation unit comprises a hydraulic upstream, a hydraulic turbine, a hydraulic downstream and a first generator, wherein the first generator is connected with a low-voltage power grid, the electric heating regulation unit comprises a first transformer connected with the low-voltage power grid, and the first transformer is connected with a high-voltage power grid; the electric heating chemical chain/molten salt heat storage unit comprises an electric heating temperature controller and an electric heating chemical chain/molten salt heat storage tank heater connected with the output end of the electric heating temperature controller, and the air-steam power generation unit comprises a compressor connected with the input end of the electric heating chemical chain/molten salt heat storage tank heater, and the compressor enters the electric heating chemical chain/molten salt heat storage tank inlet from the outlet. The utility model has strong practicability.
Description
Technical Field
The utility model relates to the technical field of hydroelectric power generation energy storage and heat energy utilization, in particular to a heat storage type water turbine and air-steam combined cycle cogeneration system.
Background
The surplus electric quantity is stored in various forms by using an energy storage form, and when the power generation quality is poor or insufficient, the stored electric energy is fed back for use. The chemical chain/molten salt heat storage technology stores and releases heat energy through reversible chemical reaction, the heat storage density is far higher than that of sensible heat storage and phase change heat storage, the long-term storage of the heat energy can be almost free of heat loss, and the cold and hot composite storage can be realized, so that the technology has wide application prospects in the aspects of waste heat/waste heat recovery, wind and solar complementary utilization and the like. Therefore, a heat storage type water turbine and air-steam combined cycle cogeneration system is needed.
Disclosure of Invention
The utility model aims to provide a heat storage type water turbine and air-steam combined cycle cogeneration system, which is characterized in that; the utility model has strong practicability.
The utility model is realized in the following way:
the heat storage type water turbine and air-steam combined cycle cogeneration system comprises a hydroelectric generation unit, an electric heating adjustment unit, an electric heating chemical chain/molten salt heat storage unit, an air-steam generation unit and a multi-path temperature and pressure reducing steam supply unit;
the hydroelectric generation unit comprises a hydraulic upstream, a hydraulic turbine, a hydraulic downstream and a first generator, wherein the first generator is connected with a low-voltage power grid, the electric heating regulation unit comprises a first transformer connected with the low-voltage power grid, and the first transformer is connected with a high-voltage power grid; the low-voltage power grid is connected with an electric heating temperature controller, the electric heating chemical chain/molten salt heat storage unit comprises an electric heating temperature controller and an electric heating chemical chain/molten salt heat storage tank connected with the output end of the electric heating chemical chain/molten salt heat storage tank, the air-steam power generation unit comprises a compressor connected with the input end of the electric heating chemical chain/molten salt heat storage tank, the electric heating chemical chain/molten salt heat storage tank enters an inlet of the electric heating chemical chain/molten salt heat storage tank from an outlet of the compressor, the electric heating chemical chain/molten salt heat storage tank enters an air turbine inlet to do work for power generation after being heated, the input end of the electric heating chemical chain/molten salt heat storage tank is connected with an air turbine, the air turbine is connected with a second power generator, and the second power generator is connected with a second transformer and is integrated into a low-voltage power grid through the second transformer;
the output end of the air turbine is connected with a waste heat boiler, and discharged high-temperature air enters the waste heat boiler through an inlet to heat water supply; the output end of the waste heat boiler is connected with a back extraction steam turbine and a bypass valve; the output end of the back-pumping steam turbine is also respectively connected with a first attemperator, a second attemperator, a third attemperator and a third generator, the third generator is connected with a low-voltage power grid through a third transformer, a bypass valve is connected with a fourth attemperator, the fourth attemperator is connected with the first attemperator and then is connected with a high-pressure industrial steam supply grid through a high-pressure valve, the outlet of the fourth attemperator is connected with a fifth attemperator, the outlet of the fourth attemperator is connected with a medium-pressure industrial steam supply grid through a medium-pressure valve after being connected with the second attemperator, the outlet of the fifth attemperator is connected with a sixth attemperator, the sixth attemperator is connected with a third attemperator and then is connected with a heating head station through a heating valve, the third attemperator is connected with a low-pressure valve and then is connected with the low-pressure industrial steam supply grid through the low-pressure valve, the heating head station is connected with a drain pump, the drain pump is connected with a gas-water heat exchanger, the oxygen-removal gas-water heat exchanger is connected with a back-pumping steam exchanger, and the outlet of the back-pumping steam turbine is connected with a variable-pressure pump, and the waste heat pump is connected with a variable-frequency pump.
Furthermore, the back extraction type steam turbine is a single adjustable back extraction type steam turbine or a steam turbine set array formed by combining a plurality of back extraction machines in series and parallel.
The electric heating type chemical chain/molten salt heat storage tanks are connected in parallel, and a main electric heater and an output electric heater connected with the main electric heater are arranged in a single electric heating type chemical chain/molten salt heat storage tank.
Compared with the prior art, the utility model has the beneficial effects that: the control of the whole system is realized by adopting the form of combining hydroelectric power generation with an electrothermal chemical chain/molten salt heat storage tank and combining with an air-steam turbine power generation unit. The device hydroelectric power generation, the air-steam unit power generation and the heat storage device are connected with a low-voltage power grid and connected with a high-voltage power grid through a transformer, and the electric energy required by the heat storage device is generated by the hydroelectric power of the low-voltage power grid. The electrothermal chemical chain/molten salt heat storage device is controlled by an electric heating temperature controller, the output high-temperature compressed air enters an air turbine to do work and generate electricity, the high-temperature gas is discharged to further heat steam, the steam enters a steam turbine array formed by serial and parallel connection of a back extraction steam turbine or a plurality of back pressure machines, a generator is driven to generate electricity, and the steam with different parameters is output. The electric heating temperature controller is used for controlling and outputting the electric current consumed by electric heating to the electric heating chemical chain/molten salt heat storage device according to the heat supply requirement. The whole system is low-carbon and environment-friendly, has good decoupling performance, has wide application prospect in the aspects of waste heat/waste heat recovery, wind-solar complementary utilization and the like, and has strong practicability.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the structure of the device of the present utility model;
wherein, 1, hydraulic upstream, 2, hydraulic turbine, 3, hydraulic downstream, 4, first generator, 5, low-voltage power grid, 6, first transformer, 7, high-voltage power grid, 8, electric heating temperature controller, 9, main electric heater, 91, output electric heater, 10, electrothermal chemical chain/molten salt heat storage tank, 11, air turbine, 12, compressor, 13, second generator, 14, second transformer A,15, waste heat boiler, 16, back-pumping turbine, 17, third generator, 18, third transformer, the system comprises a first desuperheater, a second desuperheater, a third desuperheater, a deaerator, a variable-frequency booster pump, a gas-water heat exchanger, a bypass valve, a first temperature-reducing pressure reducer, a second temperature-reducing pressure reducer, a third temperature-reducing pressure reducer, a high-pressure valve, a medium-pressure valve, a low-pressure valve, a heating valve, a high-pressure industrial steam supply network, a medium-pressure industrial steam supply network, a low-pressure industrial steam supply network, a heating head station and a drain pump.
The main input and output ports have the following meanings:
a. the method comprises the steps of a water turbine outlet, B, an output port of an electric heating temperature controller, C, an air inlet of an electric heating chemical chain/molten salt heat storage tank, d, an air outlet of the electric heating chemical chain/molten salt heat storage tank, e, an air turbine inlet, f, a gas compressor outlet, g, a waste heat boiler air side inlet, h, a waste heat boiler air side outlet, i, a waste heat boiler steam side inlet, j, a waste heat boiler steam side outlet, k, a back-extraction turbine inlet, l, a turbine 1-stage steam extraction port, m, a turbine 2-stage steam extraction port, n, a desuperheater A inlet, o, a desuperheater B inlet, p, a desuperheater C inlet, q, a gas-water heat exchanger air side inlet, r, a gas-water heat exchanger exhaust port, s, a deaerator high-temperature steam inlet, t, a deaerator hydrophobic port, u, a desuperheater B inlet, v.1-stage desuperheater B outlet, w, x, desuperheater B outlet, y., z. desuperheater C outlet, 23 high-pressure industrial supply network inlet, ab., industrial supply network inlet, and a first-stage industrial supply network inlet for heat supply network for heat supply, and a first station for supplying heat to a water to a heat, and a station for supplying heat to a station for a steam to a station of a supply, such a supply network of a heat.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
Referring to fig. 1, the combined heat and power system of the heat storage type water turbine and the air-steam combined cycle comprises a hydroelectric generation unit, an electric heating adjustment unit, an electric heating type chemical chain/molten salt heat storage unit, an air-steam generation unit and a multi-path temperature and pressure reducing steam supply unit;
the hydroelectric generation unit comprises a hydraulic upstream 1, a hydraulic turbine 2, a hydraulic downstream 3 and a first generator 4, wherein the first generator 4 is connected with a low-voltage power grid 5, the electric heating regulation unit comprises a first transformer 6 connected with the low-voltage power grid 5, and the first transformer 6 is connected with a high-voltage power grid 7; the low-voltage power grid is connected with an electric heating temperature controller 8, the electric heating chemical chain/molten salt heat storage unit comprises the electric heating temperature controller 8 and an electric heating chemical chain/molten salt heat storage tank 10 connected with the output end of the electric heating chemical chain/molten salt heat storage tank 10, a gas compressor 12 is connected with the input end of the electric heating chemical chain/molten salt heat storage tank 10, the electric heating chemical chain/molten salt heat storage tank enters an inlet c of the electric heating chemical chain/molten salt heat storage tank from an outlet f of the gas compressor, the electric heating chemical chain/molten salt heat storage tank enters an inlet e of an air turbine 11 for power generation from an outlet d after heating, the air-steam power generation unit comprises the electric heating chemical chain/molten salt heat storage tank 10, the input end of the electric heating chemical chain/molten salt heat storage tank 10 is connected with an air turbine 11, the air turbine is connected with a second power generator 13, the second power generator 13 is connected with a second transformer 14, and the electric power is integrated into the electric power grid 5 through the second transformer 14;
the output end of the air turbine 11 is connected with a waste heat boiler 15, and discharged high-temperature air enters the waste heat boiler through an inlet g to heat water supply; the output end of the waste heat boiler 15 is connected with a back extraction steam turbine 16 and a bypass valve 25; the multi-path temperature and pressure reduction steam supply unit comprises a back-pumping steam turbine 16, wherein the output end of the back-pumping steam turbine 16 is further connected with a first attemperator 19, a second attemperator 20, a third attemperator 21 and a third generator 17 respectively, the third generator 17 is connected with a low-pressure electric network 5 through a third transformer 18, a bypass valve 25 is connected with a fourth attemperator 26, the fourth attemperator 26 is connected with a high-pressure industrial steam supply network 33 through a high-pressure valve 29 after converging with the first attemperator 19, the outlet of the fourth attemperator 26 is connected with a fifth attemperator 27, the outlet of the fifth attemperator 27 is connected with a medium-pressure industrial steam supply network 34 through a medium-pressure valve 30 after converging with the second attemperator, the outlet of the fifth attemperator 27 is connected with a sixth attemperator 28, the sixth attemperator 28 is connected with a heating head station 36 through a connecting heating valve 32, the third attemperator 21 is connected with a low-pressure valve 31, the fourth attemperator 21 is connected with a low-pressure electric network 35 through the low-pressure attemperator 31, the outlet of the back-pumping steam turbine is connected with a water pump 22, and the water pump is connected with a water-saving steam pump 22.
In this embodiment, the back extraction turbine 16 is a single adjustable back extraction turbine or a turbine unit array formed by combining multiple back extraction turbines in series.
The electric heating type chemical chain/molten salt heat storage tanks 10 are multiple, the electric heating type chemical chain/molten salt heat storage tanks are connected in parallel, and a main electric heater 9 and an output electric heater 91 connected with the main electric heater 9 are arranged in a single electric heating type chemical chain/molten salt heat storage tank.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (3)
1. The utility model provides a heat-retaining hydraulic turbine, air-steam combined cycle cogeneration system which characterized in that: the device comprises a hydroelectric generation unit, an electric heating regulation unit, an electric heating chemical chain/molten salt heat storage unit, an air-steam generation unit and a multi-channel temperature and pressure reducing steam supply unit;
the hydroelectric generation unit comprises a hydraulic upstream (1), a water turbine (2) and a hydraulic downstream (3), and a first generator (4), wherein the first generator (4) is connected with a low-voltage power grid (5), the electric heating regulation unit comprises a first transformer (6) connected with the low-voltage power grid (5), and the first transformer (6) is connected with a high-voltage power grid (7); the electric heating chemical chain/molten salt heat storage unit comprises an electric heating temperature controller (8) and an electric heating chemical chain/molten salt heat storage tank (10) connected with the output end of the electric heating temperature controller (8), the air-steam power generation unit comprises a gas compressor (12) connected with the input end of the electric heating chemical chain/molten salt heat storage tank (10), the input end of the electric heating chemical chain/molten salt heat storage tank (10) is connected with an air turbine (11), the air turbine is connected with a second generator (13), the second generator (13) is connected with a second transformer (14), and the electric heating chemical chain/molten salt heat storage tank is integrated into the electric power grid (5) through the second transformer (14);
the output end of the air turbine (11) is connected with a waste heat boiler (15), and the output end of the waste heat boiler (15) is connected with a back-suction steam turbine (16) and a bypass valve (25); the multi-path temperature and pressure reducing steam supply unit comprises a first attemperator (19), a second attemperator (20), a third attemperator (21) and a third generator (17) which are connected with the output end of the back-pumping steam turbine (16), the third generator (17) is connected with a low-voltage power grid (5) through a third transformer (18), a bypass valve (25) is connected with a fourth attemperator (26), after the fourth attemperator (26) is converged with the first attemperator (19), the fourth attemperator (26) is connected with a high-pressure industrial steam supply grid (33) through a high-pressure valve (29), the outlet of the fourth attemperator (26) is connected with a fifth attemperator (27), after the fourth attemperator is converged with the second attemperator, the third generator (17) is connected with a sixth attemperator (28) through a medium-pressure valve (30), after the fourth attemperator (28) is converged with the third attemperator (21), the fourth attemperator (26) is connected with a heat supply grid (32), the fourth attemperator (24) is connected with a low-pressure pump (31) through a low-pressure pump (24), the air supply grid (24) is connected with a low-pressure pump (31), the deaerator (22) is connected with a steam exhaust outlet of the back extraction steam turbine (16), a drainage outlet of the deaerator (22) is connected with a variable-frequency booster pump (23), and the variable-frequency booster pump (23) is connected with an input end of the waste heat boiler.
2. The heat storage type water turbine and air-steam combined cycle cogeneration system according to claim 1, wherein the back extraction type steam turbine (16) is a single adjustable back extraction type steam turbine or a steam turbine set array formed by serial-parallel combination of a plurality of back extraction machines.
3. The combined heat and power system of heat accumulation type water turbine and air-steam combined cycle as claimed in claim 1, wherein a plurality of electrothermal chemical chain/molten salt heat accumulation tanks (10) are connected in parallel, and a main electric heater (9) and an output electric heater (91) connected with the main electric heater (9) are arranged in a single electrothermal chemical chain/molten salt heat accumulation tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321452520.7U CN220151467U (en) | 2023-06-08 | 2023-06-08 | Heat storage type water turbine and air-steam combined cycle cogeneration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321452520.7U CN220151467U (en) | 2023-06-08 | 2023-06-08 | Heat storage type water turbine and air-steam combined cycle cogeneration system |
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| Publication Number | Publication Date |
|---|---|
| CN220151467U true CN220151467U (en) | 2023-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321452520.7U Active CN220151467U (en) | 2023-06-08 | 2023-06-08 | Heat storage type water turbine and air-steam combined cycle cogeneration system |
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| Country | Link |
|---|---|
| CN (1) | CN220151467U (en) |
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2023
- 2023-06-08 CN CN202321452520.7U patent/CN220151467U/en active Active
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