CN210533133U - Chemical heat energy storage system - Google Patents
Chemical heat energy storage system Download PDFInfo
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- CN210533133U CN210533133U CN201921165723.1U CN201921165723U CN210533133U CN 210533133 U CN210533133 U CN 210533133U CN 201921165723 U CN201921165723 U CN 201921165723U CN 210533133 U CN210533133 U CN 210533133U
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- Prior art keywords
- energy storage
- tank
- storage system
- heat exchange
- chamber
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- 238000004146 energy storage Methods 0.000 title claims abstract description 46
- 239000000126 substance Substances 0.000 title claims abstract description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 47
- 238000006243 chemical reaction Methods 0.000 claims abstract description 30
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 23
- 230000002093 peripheral effect Effects 0.000 claims abstract description 19
- 239000011232 storage material Substances 0.000 claims abstract description 10
- 229910001873 dinitrogen Inorganic materials 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 238000005485 electric heating Methods 0.000 claims description 14
- 239000000835 fiber Substances 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 5
- 238000000034 method Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005338 heat storage Methods 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 150000004681 metal hydrides Chemical group 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Images
Classifications
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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
- Y02E60/14—Thermal energy storage
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- Physical Or Chemical Processes And Apparatus (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model relates to a chemical heat energy storage system, which comprises a reaction tank, an expansion tank, a heat exchange coil and a control device; the reaction tank comprises an inner chamber and an outer jacket, the inner chamber comprises a plurality of heat exchange basic units, the plurality of heat exchange basic units comprise a heating tray, an electric heater arranged below the heating tray and cellucotton placed on the heating tray, and energy storage materials are adsorbed on the cellucotton, wherein the nitrogen tank is connected with the input end of the expansion tank through a nitrogen booster pump, and the output end of the expansion tank is connected with the peripheral jacket chamber; the heat exchange coil penetrates through the reaction tank, and in the inner cavity chamber, the heat exchange coil surrounds the heating tray and is arranged above the cellucotton; the inside PLC controller that is provided with of controlling means, the nitrogen gas booster pump is connected to the PLC controller. The utility model provides a chemical heat energy storage system installs simply, and convenient to use can realize the size of energy storage scale through parallelly connected.
Description
Technical Field
The utility model relates to an energy storage field especially relates to a chemistry heat energy storage system.
Background
Thermochemical energy storage is an efficient energy storage means by reversible chemical reaction and by utilizing reaction enthalpy heat in the reaction process. Compared with other energy storage modes, the thermochemical energy storage has the advantages of high energy storage density (100-500 kW.h/m 3), capability of realizing long-term non-heat loss storage at ambient temperature, suitability for long-distance transportation and the like, and provides a method with great development prospect for high-temperature and high-efficiency conversion, storage and transmission of solar heat energy. The thermochemical energy storage can overcome the intermittence of solar energy, realize the continuous supply of heat, is particularly suitable for the peak-valley load regulation of a power plant, and releases heat energy when the peak generates electricity to push a steam turbine to generate electricity.
In theory, any reversible chemical reaction that exists with an endothermic/exothermic reaction can be used for thermal energy storage. However, the currently studied thermochemical energy storage reaction systems mainly include: thermal decomposition of metal hydrides, decomposition of oxides and peroxides, calcium hydroxide/calcium oxide conversion, and the like. In order to enable a thermochemical energy storage system to operate more efficiently, the design of an energy storage device becomes an important technology to be solved urgently.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve the above-mentioned weak point that exists among the prior art.
In order to achieve the purpose, the utility model provides a chemical reaction energy storage system, which comprises a reaction tank, an expansion tank, a heat exchange coil and a control device; the reaction tank comprises an inner chamber and an outer jacket, the inner chamber is provided with a plurality of heat exchange basic units, the plurality of heat exchange basic units comprise a heating tray, a heating device arranged below the heating tray and fiber cotton placed on the heating tray, the top end of the outer wall of the inner chamber is provided with a plurality of one-way valves, and the fiber cotton is adsorbed with energy storage materials, wherein the inner chamber and the outer jacket are welded and assembled through a supporting bridge; the outer wall of the inner chamber and the outer jacket form a peripheral jacket chamber, the nitrogen tank is connected with the input end of the expansion tank through the nitrogen booster pump, and the output end of the expansion tank is connected with the peripheral jacket chamber; the heat exchange coil penetrates through the reaction tank, and in the inner cavity chamber, the heat exchange coil surrounds the heating tray and is arranged above the cellucotton; the control device is connected with the nitrogen booster pump.
In one possible embodiment, the cellucotton is alumina refractory fiber.
In one possible embodiment, a solenoid valve is further included, the solenoid valve being located between the expansion tank and the peripheral jacket chamber.
In a possible embodiment, a pressure gauge is also provided on the reaction tank.
In one possible embodiment, the heating device is an electric heater.
In one possible embodiment, the electric heater includes an electric heating power supply box and an electric heating pipe.
In one possible embodiment, the energy storage material is Ga (HO)2、GaCO3Or Ba (HO)2。
In a possible implementation mode, a water storage tank and a longitudinal pipeline are arranged in the peripheral jacket chamber, the water storage tank is located below the inner chamber, the lower end of the longitudinal pipeline is connected into the water storage tank through a bent pipe, a plurality of spray heads are arranged on the side wall of the longitudinal pipeline, and the spray heads penetrate through the outer wall of the inner chamber.
In one possible embodiment, a PLC controller is provided inside the control device.
In one possible embodiment, a pressure control gauge is provided on the nitrogen booster pump.
The utility model provides a chemical heat energy storage system installs simply, and convenient to use can realize the size of energy storage scale through parallelly connected. The device can store heat in the valley electricity and can be used in other time periods. And the power consumption is saved when the wave crest occurs. If the electric heating is replaced by other heat recovery coils, an energy storage device of other heat sources can be realized, and the energy storage device is applied to waste heat storage or solar heat storage.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a chemical thermal energy storage system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a reaction tank according to an embodiment of the present invention;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a schematic diagram of the positions of the heat exchange coil, the cellucotton and the electric heating tube;
fig. 5 is a schematic position diagram of the longitudinal pipeline and the inner chamber provided in the embodiment of the present invention;
FIG. 6 is a cross-sectional view of FIG. 5;
description of reference numerals:
1-heat exchange coil, 2-cellucotton, 3-heating tray, 4-electric heating pipe, 5-electric heating power supply box, 7-electromagnetic valve, 8-expansion tank, 9-control device, 10-nitrogen booster pump, 11-nitrogen tank, 12-pressure gauge, 13-water pump, 14-longitudinal pipeline, 15-one-way valve, 16-inner chamber, 17-outer jacket, 18-support bridge, 19-spray head, 20-elbow.
Detailed Description
The terms "first," "second," and the like in the description and in the claims and in the drawings of the present invention are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprises" and "comprising," as well as any variations thereof, are intended to cover a non-exclusive inclusion, such as a list of steps or elements. A method, system, article, or apparatus is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, system, article, or apparatus.
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and embodiments.
As shown in fig. 1-6, an embodiment of the present invention provides a chemical thermal energy storage system, which includes a reaction tank, an expansion tank 8, a heat exchange coil 1, and a control device 9.
The retort includes interior chamber 16 and outer jacket 17, and interior chamber 16 is including being provided with a plurality of heat transfer elementary units, and a plurality of heat transfer elementary units are including heating tray 3, setting up heating device in heating tray 3 below and place the cellucotton 2 on heating tray 3, and the top of the outer wall of interior chamber 16 is provided with a plurality of check valves 15 that run through the outer wall of interior chamber 16, and the last energy storage material that adsorbs of cellucotton 2, and heating device here selects electric heating pipe 4.
The outer wall of the inner chamber 16 and the outer jacket 17 form a peripheral jacket chamber, the outer wall of the inner chamber 16 and the outer jacket 17 are welded and fixed through a support bridge 18, the nitrogen tank 11 is connected with the input end of the expansion tank 8 through a nitrogen booster pump 10, and the output end of the expansion tank 8 is connected with the peripheral jacket chamber.
The heat exchange coil 1 penetrates through the reaction tank, and in the inner cavity 16, the heat exchange coil 1 is arranged above the cellucotton 2.
A longitudinal pipeline 14 is also arranged in the peripheral jacket cavity behind the outer wall of the inner cavity 16, the lower end of the longitudinal pipeline 14 is connected into a water storage tank below the inner cavity 16 through a bent pipe 20, a plurality of spray heads 19 are arranged on the side wall of the longitudinal pipeline 14, and the spray heads 19 are all fixed on the outer wall of the inner cavity 16 and penetrate through the outer wall of the inner cavity 16.
The control device 9 is connected with the nitrogen booster pump 10, and the nitrogen booster pump 10 is controlled by the instruction of the PLC controller to realize the increase and decrease of the nitrogen flow.
In one example, the control device 9 is internally provided with a PLC controller.
In one example, the cellucotton is alumina refractory fiber.
In one example, the chemical thermal energy storage system further comprises a solenoid valve 7, the solenoid valve 7 is positioned between the expansion tank 8 and the peripheral jacket chamber, and controls the inlet and outlet of nitrogen under different working conditions.
In one example, the reaction tank is further provided with a pressure gauge 12 for monitoring the pressure of the peripheral jacket chamber in real time, and the nitrogen booster pump 10 is provided with a pressure control table for adjusting the pressure of the nitrogen gas, and the pressure is adjusted according to the pressure of the peripheral jacket chamber.
In an example, an electric heating power supply box 5 is further connected outside the electric heating tube 4, wherein the electric heating power supply box 5 is located in front of the heat exchange coil 1 and penetrates out of the outer jacket 17, so that a worker can conveniently control the electric heating tube 4.
In one example, the energy storage material is Ga (HO)2、GaCO3Or Ba (HO)2。
It should be understood that the energy storage materials described above are only examples, and other materials with chemical enthalpy and reversible chemical reaction can be used as the energy storage materials according to design requirements.
In one example, the expansion tube is used to buffer the water vapor and pressure generated during the reaction.
The working principle is as follows:
1. the heat storage process: an electric heating tube 4 is arranged below the tray and used for baking Ga (HO) adsorbed above the tray2The fibers of the chemical substances promote the decomposition of the substances. The decomposed liquid water can enter the jacket of the outer container through the one-way valve 15.
2. An exothermic process: by system control, a nitrogen pump is used to pressurize the peripheral jacket chamber, causing water or water vapor in the jacket to enter the inner chamber 16 through the spray head 19. The water mist reacts with the decomposed salt substances in the rock wool, and a large amount of heat is generated. The heat heats the liquid in the coil pipe through the coil pipe, thereby realizing heat release. The temperature of the outlet water is controlled by controlling the amount of the entering water mist or the water flow in the coil pipe, so that the heat demand of the terminal is met.
The method comprises the following steps:
1. electrical heating will adsorb chemicals to the alumina fiber (e.g. Ga (HO)2,GaCo3,Ba(HO)2Etc.) heating and separatingWater vapour is then condensed into the peripheral jacket chamber of the device by the heat flow pushing through the top one-way valve 15.
2. The water vapor in the jacket is gradually condensed into condensed water and stored in a water storage tank below the peripheral jacket chamber.
3. When energy is extracted, pressure is applied through the expansion tank 8 and the nitrogen pump, the peripheral jacket chamber is pressurized by the nitrogen pump, water or water vapor in the jacket is promoted, the water vapor is sprayed into the inner chamber 16 under the pressure of the nitrogen, and the fiber and the decomposed oxide or salt (the substance after heating and decomposition in the step 1) react.
4. The heat of reaction can heat exchange coil 1 above the alumina fiber to heat the water in heat exchange coil 1, and then realize that the stored energy turns into hot water or steam that can use.
In one example, the water inlet of the heat exchange coil 1 is connected with a pump station, and the pump station comprises a water pump 13 and a flow meter to control the water inlet amount.
In the above embodiment, one nitrogen booster pump 10 is connected to control one reaction tank, and in practical application, one nitrogen booster pump 10 may be connected to control a plurality of reaction tanks, that is, a plurality of reaction tanks are connected in parallel.
The utility model discloses compare with current other energy storage modes, there is very apparent advantage.
Energy storage material: the existing method has relatively high energy storage density and is easy to find.
In the aspect of economy: the device has novel design, simple installation and convenient use, and can realize energy storage large-scale production through parallel connection.
Social benefits are as follows: the device can store heat in the valley electricity and can be used in other time periods. And the power consumption is saved when the wave crest occurs. By adjusting the heat source device, heat recovery and solar heat energy storage can be realized.
And (3) environmental protection: the raw materials adopted by the device are easy to obtain, the application is very wide, high temperature can be realized, and the problem of industrial heat consumption is solved.
The above-mentioned embodiments further explain the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the protection scope of the present invention, and any modifications, improvements, etc. made on the basis of the technical solutions of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A chemical heat energy storage system is characterized by comprising a reaction tank, an expansion tank, a heat exchange coil and a control device;
the reaction tank comprises an inner chamber and an outer jacket, the inner chamber comprises a plurality of heat exchange basic units, the plurality of heat exchange basic units comprise a heating tray, an electric heater arranged below the heating tray and cellucotton placed on the heating tray, a plurality of one-way valves are arranged at the top end of the outer wall of the inner chamber, energy storage materials are adsorbed on the cellucotton, and the inner chamber and the outer jacket are welded and assembled through a support bridge;
the outer wall of the inner chamber and the outer jacket form a peripheral jacket chamber, a nitrogen tank is connected with the input end of the expansion tank through a nitrogen booster pump, and the output end of the expansion tank is connected with the peripheral jacket chamber;
the heat exchange coil penetrates through the reaction tank and is arranged in the inner cavity chamber, surrounds the heating tray and is arranged above the cellucotton;
the inside PLC controller that is provided with of controlling means, the PLC controller is connected the nitrogen gas booster pump.
2. The chemical thermal energy storage system of claim 1, wherein the cellucotton is an alumina refractory fiber.
3. The chemical thermal energy storage system of claim 1, further comprising a solenoid valve located between the expansion tank and the peripheral jacket chamber.
4. The chemical thermal energy storage system according to claim 1, wherein a pressure gauge is further provided on the reaction tank.
5. The chemical thermal energy storage system of claim 1, wherein the electric heater comprises an electric heating power supply box and an electric heating pipe.
6. The chemical thermal energy storage system of claim 1 wherein the energy storage material is Ga (HO)2、GaCO3Or Ba (HO)2。
7. The chemical heat energy storage system according to claim 1, wherein a water storage tank and a longitudinal pipeline are arranged in the peripheral jacket chamber, the water storage tank is positioned below the inner chamber, the lower end of the longitudinal pipeline is connected into the water storage tank through a bent pipe, a plurality of spray heads are arranged on the side wall of the longitudinal pipeline, and the spray heads penetrate through the outer wall of the inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921165723.1U CN210533133U (en) | 2019-07-24 | 2019-07-24 | Chemical heat energy storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921165723.1U CN210533133U (en) | 2019-07-24 | 2019-07-24 | Chemical heat energy storage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210533133U true CN210533133U (en) | 2020-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921165723.1U Expired - Fee Related CN210533133U (en) | 2019-07-24 | 2019-07-24 | Chemical heat energy storage system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319726A (en) * | 2019-07-24 | 2019-10-11 | 青岛桑迪益科环保科技有限公司 | A kind of chemical heat energy-storage system |
-
2019
- 2019-07-24 CN CN201921165723.1U patent/CN210533133U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319726A (en) * | 2019-07-24 | 2019-10-11 | 青岛桑迪益科环保科技有限公司 | A kind of chemical heat energy-storage system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230421 Address after: Room 102, Unit 2, Building 15, No. 15, Kaifeng Road, Sifang District, Qingdao, Shandong Province, 266000 Patentee after: Li Qianjin Address before: Room 811, Science and Technology Innovation Building, 171 Shandong Road, Shibei District, Qingdao City, Shandong Province, 266034 Patentee before: Qingdao Sandy Yike Environmental Protection Technology Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200515 |
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| CF01 | Termination of patent right due to non-payment of annual fee |