CN220707767U - Trough type photo-thermal power generation system based on solid particle fluidized bed heat storage - Google Patents
Trough type photo-thermal power generation system based on solid particle fluidized bed heat storage Download PDFInfo
- Publication number
- CN220707767U CN220707767U CN202322107894.1U CN202322107894U CN220707767U CN 220707767 U CN220707767 U CN 220707767U CN 202322107894 U CN202322107894 U CN 202322107894U CN 220707767 U CN220707767 U CN 220707767U
- Authority
- CN
- China
- Prior art keywords
- fluidized bed
- particle
- heat exchanger
- power generation
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002245 particle Substances 0.000 title claims abstract description 49
- 238000010248 power generation Methods 0.000 title claims abstract description 49
- 238000005338 heat storage Methods 0.000 title claims abstract description 43
- 239000007787 solid Substances 0.000 title claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 70
- 230000006835 compression Effects 0.000 claims abstract description 15
- 238000007906 compression Methods 0.000 claims abstract description 15
- 239000011232 storage material Substances 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 11
- 150000003839 salts Chemical class 0.000 claims description 10
- 230000001502 supplementing effect Effects 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000008236 heating water Substances 0.000 claims description 3
- 229910001338 liquidmetal Inorganic materials 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 238000004146 energy storage Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The utility model belongs to the technical field of photo-thermal power generation, and particularly relates to a trough type photo-thermal power generation system based on solid particle fluidized bed heat storage, which comprises a heat collection system, a fluidized bed heat exchange system, a particle-water heat exchange system and a power generation system, wherein the heat collection system comprises a trough type heat collection field; the fluidized bed heat exchange system comprises an air compression system, a hot air generator and a fluidized bed heat exchanger, wherein the inlet and outlet of the hot air generator are respectively connected with the trough type heat collection field through heat transfer medium pipelines, the air inlet of the hot air generator is connected with the air compression system, the air outlet of the hot air generator is connected with the air inlet of the fluidized bed heat exchanger, and the air outlet of the fluidized bed heat exchanger is connected with the air compression system; the particle-water heat exchange system comprises a particle-water heat exchanger and a lifting device; the power generation system is connected with the particle-water heat exchanger. The utility model has the advantages of wide working temperature range, low investment cost, high power generation efficiency and the like.
Description
Technical Field
The utility model belongs to the technical field of photo-thermal power generation, and particularly relates to a trough type photo-thermal power generation system based on solid particle fluidized bed heat storage.
Background
Solar photo-thermal power generation is a renewable energy technical means, and can be provided with an energy storage system to realize continuous power generation, so that the solar photo-thermal power generation is comparable with thermal power generation, and has potential as basic power. The groove type photo-thermal power generation has the advantages of simple process, flexible configuration, low manufacturing cost and the like, and plays an important role in photo-thermal power generation.
At present, the common energy storage mode of the trough type photo-thermal power generation is a fused salt energy storage technology, the highest use temperature of fused salt can reach 600 ℃, if the upper limit temperature is exceeded, the fused salt can be decomposed and lose efficacy, the working temperature is 290-390 ℃, and the trough type photo-thermal power station for storing heat for 9 hours by 50MW of one machine needs to use 3.5 ten thousand tons of fused salt. The price of the solid particle heat storage material is far lower than that of the fused salt material, the using temperature range is wider, if the solid particles are adopted as the heat storage materialThe medium can greatly reduce the investment cost of the heat storage system. In addition, the heat storage temperature of the solid particles can exceed 800 ℃, and the supercritical CO can be satisfied 2 The temperature requirement of the Brayton cycle power generation is suitable for the trend of high-temperature power generation in the future, and the Brayton cycle power generation is an ideal heat storage material for photo-thermal power generation.
Disclosure of Invention
The utility model aims to solve the problems, and provides a trough type photo-thermal power generation system based on solid particle fluidized bed heat storage, which has the advantages of wide working temperature range, low investment cost, high power generation efficiency and the like.
In order to achieve the above purpose, the technical scheme adopted is as follows:
the utility model provides a tank type photo-thermal power generation system based on solid particle fluidized bed heat storage, which comprises:
the heat collection system is used for converting sunlight into heat energy and transmitting the heat energy to a heat transfer medium and comprises a groove type heat collection field;
the fluidized bed heat exchange system is used for heating compressed air through a high-temperature heat transfer medium, then the high-temperature compressed air heats the solid particle heat storage material and comprises an air compression system, a hot air generator and a fluidized bed heat exchanger, wherein the inlet and outlet of the hot air generator are respectively connected with a trough type heat collection field through a heat transfer medium pipeline, the air inlet of the hot air generator is connected with the air compression system, the air outlet of the hot air generator is connected with the air inlet of the fluidized bed heat exchanger, and the air outlet of the fluidized bed heat exchanger is connected with the air compression system through an air backflow pipeline;
the particle-water heat exchange system is used for heating water into water vapor by the high-temperature solid particle heat storage material; the device comprises a particle-water heat exchanger and a lifting device, wherein a feed inlet of the particle-water heat exchanger is connected with a discharge outlet of the fluidized bed heat exchanger, and the discharge outlet of the particle-water heat exchanger is connected with the feed inlet of the fluidized bed heat exchanger through the lifting device;
and the power generation system is used for converting the thermal energy of the water vapor into electric energy, the input side of the power generation system is connected with the steam outlet of the particle-water heat exchanger, and the output side of the power generation system is connected with the water inlet of the particle-water heat exchanger.
According to the trough type photo-thermal power generation system based on solid particle fluidized bed heat storage, the heat transfer medium is heat transfer oil, molten salt or liquid metal; the solid particle heat storage material is sand or ceramic particles.
According to the tank type photo-thermal power generation system based on solid particle fluidized bed heat storage, a heat transfer medium circulating pump is further arranged on the heat transfer medium pipeline.
According to the trough type photo-thermal power generation system based on solid particle fluidized bed heat storage, further, the particle-water heat exchange system further comprises a cold storage tank positioned above the fluidized bed heat exchanger and a hot storage tank positioned below the fluidized bed heat exchanger, a left lower discharge port of the cold storage tank is connected with an upper feed port of the fluidized bed heat exchanger through a first particle transmission pipeline, a right upper feed port of the cold storage tank is connected with a discharge end of a lifting device, a left upper feed port of the hot storage tank is connected with a lower discharge port of the fluidized bed heat exchanger through a second particle transmission pipeline, and a right lower discharge port of the hot storage tank is connected with a feed port of the particle-water heat exchanger through a third particle transmission pipeline.
According to the tank type photo-thermal power generation system based on solid particle fluidized bed heat storage, further, the power generation system comprises a steam turbine, a cooling tower, a water supplementing tank and a circulating water pump, wherein the steam turbine is connected with a steam outlet of a particle-water heat exchanger through a high-temperature steam pipeline, the steam turbine is connected with the cooling tower through a condensed water pipeline, and the cooling tower is connected with a water inlet of the particle-water heat exchanger through the water supplementing tank and the circulating water pump in sequence.
According to the trough type photo-thermal power generation system based on solid particle fluidized bed heat storage, further, the power generation system further comprises a generator, and the generator is connected with a steam turbine.
By adopting the technical scheme, the beneficial effects are that:
1. compared with the traditional trough type photo-thermal power generation adopting molten salt for heat storage, the utility model has the defects of narrow working temperature interval, high molten salt cost, low safety and the like, and the utility model adopts solid particle heat storage materials for heat storage, and has the advantages of easily obtained raw materials, low price, high safety, environmental friendliness, wide working temperature range and the like.
2. According to the utility model, the devices are reasonably arranged, the cold storage tank, the fluidized bed heat exchanger, the hot storage tank and the particle-water heat exchanger are sequentially arranged from high to low, and the heat transfer, heat storage and heat exchange process can be completed in the system by means of the self gravity of the solid particle heat storage material without other auxiliary equipment, so that the self-power consumption of the whole system is reduced, and the overall power generation efficiency of the power station is improved.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the following description will briefly explain the drawings of the embodiments of the present utility model. Wherein the showings are for the purpose of illustrating some embodiments of the utility model only and not for the purpose of limiting the same.
Fig. 1 is a schematic structural diagram of a tank type photo-thermal power generation system based on solid particle fluidized bed heat storage according to an embodiment of the present utility model.
The meaning represented by the numbers in the figures is:
101. a trough-type heat collection field;
201. an air compression system 202, a hot air generator 203, a fluidized bed heat exchanger 204, a heat transfer medium pipeline 205, a heat transfer medium circulating pump 206, and an air return pipeline;
301. particle-water heat exchanger 302, lifting device 303, cold storage tank 304, hot storage tank 305, first particle transfer conduit 306, second particle transfer conduit 307, third particle transfer conduit;
401. turbine, 402, generator, 403, cooling tower, 404, make-up tank, 405, circulating water pump, 406, high temperature steam pipe, 407, condensed water pipe.
Detailed Description
An exemplary embodiment of the present utility model will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the utility model are shown. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art.
As shown in fig. 1, the tank type photo-thermal power generation system based on solid particle fluidized bed heat storage of the embodiment comprises a heat collection system, a fluidized bed heat exchange system, a particle-water heat exchange system and a power generation system.
The heat collection system is used for converting sunlight into heat energy and transmitting the heat energy to a heat transfer medium, and comprises a trough type heat collection field 101.
The fluidized bed heat exchange system is used for heating compressed air through a high-temperature heat transfer medium and then heating the solid particle heat storage material through the high-temperature compressed air; the heat-transfer device comprises an air compression system 201, a hot air generator 202, a fluidized bed heat exchanger 203 and a heat-transfer medium circulating pump 205, wherein a liquid inlet of the hot air generator 202 is connected with a trough heat-collection field 101 through a heat-transfer medium pipeline 204, a liquid outlet of the hot air generator 202 is connected with the trough heat-collection field 101 through the heat-transfer medium pipeline 204, the heat-transfer medium circulating pump 205 is arranged on the heat-transfer medium pipeline 204, heat-transfer medium flows in the heat-transfer medium pipeline 204, and optionally, the heat-transfer medium is heat-transfer oil, molten salt or liquid metal. An air inlet of the hot air generator 202 is connected with the air compression system 201, an air outlet of the hot air generator 202 is connected with an air inlet of the fluidized bed heat exchanger 203, and an air outlet of the fluidized bed heat exchanger 203 is connected with the air compression system 201 through an air return pipeline 206. The fluidized bed heat exchanger 203 contains solid particulate heat storage material, optionally sand or ceramic particles.
The particle-water heat exchange system is used for heating water into water vapor by the high-temperature solid particle heat storage material; the particle-water heat exchanger 301, the lifting device 302, the cold storage tank 303 and the hot storage tank 304 are arranged sequentially from high to low, so that solid particle heat storage materials can flow downwards by means of self gravity, and the energy consumption of the system is reduced. The left lower discharge port of the cold storage tank 303 is connected with the upper feed port of the fluidized bed heat exchanger 203 through a first particle transmission pipeline 305, the right upper feed port of the cold storage tank 303 is connected with the discharge end of the lifting device 302, the feed end of the lifting device 302 is connected with the discharge port of the particle-water heat exchanger 301, the feed port of the particle-water heat exchanger 301 is connected with the right lower discharge port of the hot storage tank 304 through a third particle transmission pipeline 307, and the left upper feed port of the hot storage tank 304 is connected with the lower discharge port of the fluidized bed heat exchanger 203 through a second particle transmission pipeline 306.
The power generation system is used for converting the thermal energy of the water vapor into electric energy; the device comprises a steam turbine 401, a generator 402, a cooling tower 403, a water supplementing tank 404 and a circulating water pump 405, wherein the steam turbine 401 is connected with a steam outlet of the particle-water heat exchanger 301 through a high-temperature steam pipeline 406, the steam turbine 401 is connected with the cooling tower 403 through a condensed water pipeline 407, and the cooling tower 403 is connected with a water inlet of the particle-water heat exchanger 301 through the water supplementing tank 404 and the circulating water pump 405 in sequence; the generator 402 is connected to the steam turbine 401.
The working principle is as follows:
the solar light is converted into heat energy by the trough type heat collection field 101, the heat energy is absorbed by the heat transfer medium and flows to the hot air generator 202 through the heat transfer medium pipeline 204 to exchange heat with compressed air, the heat transfer medium after heat exchange returns to the trough type heat collection field 101 again to absorb heat and transfer heat, the air compression system 201 compresses low-temperature air and then transmits the low-temperature air into the hot air generator 202, the low-temperature compressed air exchanges heat with the heat transfer medium and then becomes high-temperature compressed air, the high-temperature compressed air enters the fluidized bed heat exchanger 203, the solid particle heat storage material is fluidized through high-pressure blowing, the heat exchange efficiency is improved, and the low-temperature air after heat exchange enters the air compression system 201 again through the air return pipeline 206 to form a first circulation.
The solid particulate heat storage material in the cold storage tank 303 flows into the fluidized bed heat exchanger 203 through the first particulate transmission pipeline 305 to exchange heat, the heat exchanged solid particulate heat storage material flows into the hot storage tank 304 through the second particulate transmission pipeline 306, the solid particulate heat storage material in the hot storage tank 304 flows into the particulate-water heat exchanger 301 through the third particulate transmission pipeline 307 to exchange heat with water, and then flows into the lifting device 302 to be conveyed into the cold storage tank 303 to form a second cycle.
The high-temperature steam generated by the particle-water heat exchanger 301 enters the steam turbine 401 to do work through the high-temperature steam pipeline 406, the generator 402 is driven to generate power, the steam becomes condensed water after doing work, the condensed water enters the cooling tower 403 to be cooled through the condensed water pipeline 407, then enters the water supplementing tank 404 through the pipeline, and then enters the particle-water heat exchanger 301 through the circulating water pump 405 to form a third circulation.
In the description of the present utility model, it should be understood that the expressions "first" and "second" are used to describe various elements of the present utility model and do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.
It should be noted that when an element is referred to as being "connected," "coupled," or "connected" to another element, it can be directly connected, coupled, or connected, but it is understood that there may be intervening elements present therebetween; i.e. the positional relationship of direct connection and indirect connection is covered.
It should be noted that the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items.
It should be noted that terms like "upper," "lower," "left," "right," and the like, which indicate an orientation or a positional relationship, are merely used to indicate a relative positional relationship, and are provided for convenience in describing the present utility model, and do not necessarily refer to devices or elements having a particular orientation, being constructed and operated in a particular orientation; when the absolute position of the object to be described is changed, the relative positional relationship may be changed accordingly.
Preferred embodiments for carrying out the utility model have been described in detail hereinabove, but it should be understood that these embodiments are merely illustrative and are not intended to limit the scope, applicability or configuration of the utility model in any way. The scope of the utility model is defined by the appended claims and equivalents thereof. Many modifications and variations of the foregoing embodiments will be apparent to those of ordinary skill in the art in light of the teachings of this utility model, which will fall within the scope of this utility model.
Claims (6)
1. A trough type photo-thermal power generation system based on solid particle fluidized bed heat storage, characterized by comprising:
the heat collection system is used for converting sunlight into heat energy and transmitting the heat energy to a heat transfer medium and comprises a groove type heat collection field;
the fluidized bed heat exchange system is used for heating compressed air through a high-temperature heat transfer medium, then the high-temperature compressed air heats the solid particle heat storage material and comprises an air compression system, a hot air generator and a fluidized bed heat exchanger, wherein the inlet and outlet of the hot air generator are respectively connected with a trough type heat collection field through a heat transfer medium pipeline, the air inlet of the hot air generator is connected with the air compression system, the air outlet of the hot air generator is connected with the air inlet of the fluidized bed heat exchanger, and the air outlet of the fluidized bed heat exchanger is connected with the air compression system through an air backflow pipeline;
the particle-water heat exchange system is used for heating water into water vapor by the high-temperature solid particle heat storage material; the device comprises a particle-water heat exchanger and a lifting device, wherein a feed inlet of the particle-water heat exchanger is connected with a discharge outlet of the fluidized bed heat exchanger, and the discharge outlet of the particle-water heat exchanger is connected with the feed inlet of the fluidized bed heat exchanger through the lifting device;
and the power generation system is used for converting the thermal energy of the water vapor into electric energy, the input side of the power generation system is connected with the steam outlet of the particle-water heat exchanger, and the output side of the power generation system is connected with the water inlet of the particle-water heat exchanger.
2. The tank type photo-thermal power generation system based on solid particle fluidized bed heat storage according to claim 1, wherein the heat transfer medium is heat transfer oil, molten salt or liquid metal; the solid particle heat storage material is sand or ceramic particles.
3. The tank type photo-thermal power generation system based on solid particle fluidized bed heat storage according to claim 1, wherein a heat transfer medium circulating pump is arranged on the heat transfer medium pipeline.
4. The tank type photo-thermal power generation system based on solid particle fluidized bed heat storage according to claim 1, wherein the particle-water heat exchange system further comprises a cold storage tank positioned above the fluidized bed heat exchanger and a hot storage tank positioned below the fluidized bed heat exchanger, a left lower discharge port of the cold storage tank is connected with an upper feed port of the fluidized bed heat exchanger through a first particle transmission pipeline, a right upper feed port of the cold storage tank is connected with a discharge end of the lifting device, a left upper feed port of the hot storage tank is connected with a lower discharge port of the fluidized bed heat exchanger through a second particle transmission pipeline, and a right lower discharge port of the hot storage tank is connected with a feed port of the particle-water heat exchanger through a third particle transmission pipeline.
5. The tank type photo-thermal power generation system based on solid particle fluidized bed heat storage according to claim 1 or 4, wherein the power generation system comprises a steam turbine, a cooling tower, a water supplementing tank and a circulating water pump, the steam turbine is connected with a steam outlet of the particle-water heat exchanger through a high-temperature steam pipeline, the steam turbine is connected with the cooling tower through a condensed water pipeline, and the cooling tower is connected with a water inlet of the particle-water heat exchanger through the water supplementing tank and the circulating water pump in sequence.
6. The solid particle fluidized bed heat storage based trough photo-thermal power generation system of claim 5 further comprising a generator coupled to the steam turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322107894.1U CN220707767U (en) | 2023-08-07 | 2023-08-07 | Trough type photo-thermal power generation system based on solid particle fluidized bed heat storage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322107894.1U CN220707767U (en) | 2023-08-07 | 2023-08-07 | Trough type photo-thermal power generation system based on solid particle fluidized bed heat storage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220707767U true CN220707767U (en) | 2024-04-02 |
Family
ID=90441218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322107894.1U Active CN220707767U (en) | 2023-08-07 | 2023-08-07 | Trough type photo-thermal power generation system based on solid particle fluidized bed heat storage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220707767U (en) |
-
2023
- 2023-08-07 CN CN202322107894.1U patent/CN220707767U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204187874U (en) | A kind of energy storage type solar steam boiler adopting heat-conducting oil | |
| CN208380763U (en) | A kind of Bretton solar-thermal generating system of improvement | |
| CN204358977U (en) | A kind of clean energy resource steam boiler adopting Molten Salt Heat Transfer heat accumulation | |
| CN201318808Y (en) | Solar energy heat utilization device featuring gas-steam combined circulation | |
| CN109883230A (en) | Fused salt thermal storage and energy accumulation electricity generation system and energy-accumulating power station comprising it | |
| CN105258384A (en) | Combined cooling heating and power system integrating thermochemical process | |
| CN207570388U (en) | Fused salt thermal storage and energy accumulation electricity generation system and the energy-accumulating power station for including it | |
| CN202696508U (en) | High-power concentrated solar power photo-thermal synthetic power generation system | |
| WO2016058459A1 (en) | Externally heated engine and implementation method therefor | |
| CN106499601B (en) | Closed helium turbine tower type solar thermal power generation system with heat storage function | |
| CN220707767U (en) | Trough type photo-thermal power generation system based on solid particle fluidized bed heat storage | |
| CN117287374A (en) | Adiabatic compressed air energy storage system of coupling spotlight heat accumulation-organic Rankine cycle | |
| CN205156426U (en) | Thermoelectric cold many cogeneration system of integrated thermochemical process | |
| CN214998050U (en) | Low-temperature solar photo-thermal power generation system | |
| CN216342359U (en) | Combined heat and power device for carbon dioxide power generation and geothermal energy coupling | |
| WO2020029422A1 (en) | Disk type solar photothermal gradient utilization system | |
| CN202937416U (en) | Superconducting-slot solar Rankine-cycle multi-level power generation system | |
| CN214841085U (en) | Long-distance heating system | |
| CN202392929U (en) | Thermodynamic solar air conditioner | |
| CN208010540U (en) | One kind being based on supercritical CO2The solar chp system of Brayton cycle | |
| CN111396160A (en) | Flue gas waste heat cogeneration system and cogeneration method | |
| CN206345823U (en) | Coke dry quenching furnace structure and red burnt sensible heat power generation system | |
| CN2610263Y (en) | Solar thermoelectric system | |
| CN219976786U (en) | Britton photo-thermal power generation system based on solid particle heat storage | |
| CN220036745U (en) | Power generation system utilizing waste heat of ammonia loop of ammonia synthesis device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |