CN220985368U - Thermal battery system - Google Patents
Thermal battery system Download PDFInfo
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- CN220985368U CN220985368U CN202322785003.8U CN202322785003U CN220985368U CN 220985368 U CN220985368 U CN 220985368U CN 202322785003 U CN202322785003 U CN 202322785003U CN 220985368 U CN220985368 U CN 220985368U
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- Prior art keywords
- heat storage
- low
- storage tank
- temperature phase
- temperature
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- 238000005338 heat storage Methods 0.000 claims abstract description 67
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 230000008859 change Effects 0.000 claims abstract description 17
- 239000012782 phase change material Substances 0.000 claims description 28
- 239000007788 liquid Substances 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 6
- 229920006395 saturated elastomer Polymers 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 238000010248 power generation Methods 0.000 abstract description 10
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000012071 phase Substances 0.000 description 13
- 238000004146 energy storage Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- AZFNGPAYDKGCRB-XCPIVNJJSA-M [(1s,2s)-2-amino-1,2-diphenylethyl]-(4-methylphenyl)sulfonylazanide;chlororuthenium(1+);1-methyl-4-propan-2-ylbenzene Chemical compound [Ru+]Cl.CC(C)C1=CC=C(C)C=C1.C1=CC(C)=CC=C1S(=O)(=O)[N-][C@@H](C=1C=CC=CC=1)[C@@H](N)C1=CC=CC=C1 AZFNGPAYDKGCRB-XCPIVNJJSA-M 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 230000022131 cell cycle Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 235000010289 potassium nitrite Nutrition 0.000 description 1
- 239000004304 potassium nitrite Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
A thermal battery system comprises a low-temperature hot water tank, a high-temperature hot water tank, a compressor, an expander, a low-temperature phase-change heat storage tank, a high-temperature phase-change heat storage tank, a generator and connecting pipelines between the two; the low-temperature hot water tank is communicated with one end of the low-temperature phase-change heat storage tank; the other end of the low-temperature phase-change heat storage tank is respectively communicated with the inlet of the compressor and the outlet of the expander; the outlet of the compressor and the inlet of the expander are respectively communicated with the high-temperature phase-change heat storage tank, and the other end of the high-temperature phase-change heat storage tank is communicated with the high-temperature hot water tank. The thermal battery system integrates phase change heat storage, superconductive heat transfer, efficient electrothermal conversion and thermoelectric conversion technologies into a whole, realizes isothermal heat storage and isothermal heat access, and can be applied to power generation units such as photovoltaic, photo-thermal, wind power and the like and power utilization units of industrial parks, large enterprises and the like.
Description
Technical Field
The utility model belongs to the technical field of energy storage and power generation of new energy sources, and particularly relates to a thermal battery system.
Background
Batteries have become an important component of human survival and are so important in everyday life that they are involved in a variety of activities. According to the working principle of the battery, the battery can be divided into a chemical battery, a physical battery and a biological battery. The chemical battery is a battery which converts chemical energy into electric energy, consumes a certain chemical substance through chemical reaction and outputs electric energy, and is the most widely used battery type at present, and can be divided into three types according to the use property: the dry cell, the storage battery and the fuel cell have the characteristics of fuel saving and small pollution due to high efficiency of the fuel cell, and are one of the cells with relatively good prospects at present. The utility model provides a novel battery based on parallel development of a fuel battery, which becomes a thermal battery, and the battery equipment which does not generate chemical reaction in the battery in the use process of the thermal battery, can store energy and generate electricity can be classified into a physical battery category. The thermodynamic cell is an ideal 'internal combustion engine substitute', and the closed cycle of energy storage and power generation is completed by one thermodynamic cell circulating medium and four energy storage media, so that the thermodynamic cell has the characteristics of no toxicity, no harm, green and cleanness and high working efficiency.
Disclosure of Invention
Compared with the prior art, the utility model combines phase change heat storage and phase change heat transfer, realizes isothermal heat storage and isothermal heat access, improves the energy storage and power generation efficiency, is easy for commercial implementation, and is specifically described as follows:
The thermodynamic battery system comprises a low-temperature hot water tank, a high-temperature hot water tank, a compressor, an expander, a low-temperature phase-change heat storage tank, a high-temperature phase-change heat storage tank, a generator and a connecting pipeline between the high-temperature phase-change heat storage tank and the generator, wherein the expander is electrically connected with the generator; the compressor and the expander are connected in parallel between the low-temperature phase-change heat storage tank and the high-temperature phase-change heat storage tank; the low-temperature hot water tank is communicated with one end of the low-temperature phase-change heat storage tank; the other end of the low-temperature phase-change heat storage tank is respectively communicated with the inlet of the compressor and the outlet of the expander; the outlet of the compressor and the inlet of the expander are respectively communicated with the high-temperature phase-change heat storage tank, and the other end of the high-temperature phase-change heat storage tank is communicated with the high-temperature hot water tank.
Further, the thermal battery system further comprises a first electromagnetic valve, a second electromagnetic valve, a first throttle valve and a second throttle valve; the first electromagnetic valve and the first throttle valve are connected in parallel between the low-temperature hot water tank and the low-temperature phase-change heat storage tank; the second electromagnetic valve and the second throttle valve are connected in parallel between the high-temperature hot water tank and the high-temperature phase-change heat storage tank.
Further, the low-temperature phase-change heat storage tank is internally provided with a low-temperature phase-change material, and heat transfer pipelines are arranged around the low-temperature phase-change material.
Further, the high-temperature phase-change heat storage tank is filled with a high-temperature phase-change material, and heat transfer pipelines are arranged around the high-temperature phase-change material.
Further, when the compressor works, the inlet of the compressor is used for quantitatively controlling the sucked part of liquid or liquid spray, so that the whole compression process is in an adiabatic saturated compression state.
Further, the parallel compressor and expander may be replaced with a compressor and expander that are coaxially connected in series.
Compared with the existing battery, the thermal battery system integrates phase change heat storage, superconductive heat transfer, efficient electrothermal conversion and thermoelectric conversion technologies into a whole, realizes isothermal heat storage and isothermal heat access, and can be applied to power generation units such as photovoltaic, photo-thermal, wind power and the like and power utilization units such as industrial parks and large enterprises.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other 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 a thermal battery system according to the present utility model.
Fig. 2 is a schematic view showing the construction of a first embodiment of the thermal battery system of the present utility model.
Fig. 3 is a schematic structural view of a first embodiment of the thermal battery system of the present utility model.
In the figure: 1. a low-temperature hot water tank; 2. a hot water tank; 3. a compressor; 4. an expander; 5. a low temperature phase change heat storage tank; 6. a high temperature phase change heat storage tank; 7. a generator; 81. a first electromagnetic valve; 82. a second electromagnetic valve; 83. a third electromagnetic valve; 84. a fourth electromagnetic valve; 91. a first throttle valve; 92. and a second throttle valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below.
It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model.
All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims. In order that the embodiments may be more readily understood, various embodiments or methods of implementing the utility model are provided below to illustrate the relevant devices, modules, functions of the utility model.
As shown in fig. 1, the thermal battery system comprises a low-temperature hot water tank 1, a high-temperature hot water tank 2, a compressor 3, an expander 4, a low-temperature phase-change heat storage tank 5, a high-temperature phase-change heat storage tank 6, a generator 7 and connecting pipelines between the low-temperature hot water tank 1 and the compressor 3, wherein the expander 7 is electrically connected with the generator 9.
The low-temperature phase-change heat storage tank 5 is internally provided with a low-temperature phase-change material, and a heat transfer pipeline is arranged around the low-temperature phase-change material; the high-temperature phase-change heat storage tank 6 is internally provided with a high-temperature phase-change material, and a heat transfer pipeline is arranged around the high-temperature phase-change material.
The low-temperature hot water tank 1 is communicated with one end of a heat transfer pipeline inside the low-temperature phase-change heat storage tank 5; the other end of the heat transfer pipeline inside the low-temperature phase-change heat storage tank 5 is respectively communicated with the inlet of the compressor 3 and the outlet of the expander 4; the outlet of the compressor 3 and the inlet of the expander 4 are respectively communicated with a heat transfer pipeline inside the high-temperature phase-change heat storage tank 6, and the other end of the heat transfer pipeline inside the high-temperature phase-change heat storage tank 6 is communicated with the high-temperature hot water tank 2.
Referring to fig. 2, the thermal battery system further includes a first solenoid valve 81, a second solenoid valve 82, a first throttle valve 91, and a second throttle valve 92; the first electromagnetic valve 81 and the first throttle valve 91 are connected in parallel between the low-temperature hot water tank 1 and the heat transfer pipeline inside the low-temperature phase-change heat storage tank 5; the second electromagnetic valve 82 and the second throttle valve 92 are connected in parallel between the high-temperature hot water tank 2 and the heat transfer pipeline inside the high-temperature phase-change heat storage tank 6.
The above-mentioned thermal battery system further includes a third electromagnetic valve 83 and a fourth electromagnetic valve 84, and the third electromagnetic valve 83 and the fourth electromagnetic valve 84 are respectively installed on the branch of the compressor 3 and the branch of the expander 4.
The thermal battery system has two working modes, namely a heat storage working mode and a power generation working mode.
The above-mentioned compressor 3 is operated such that the inlet thereof sucks part of the liquid or the liquid spray to prevent the superheated steam phenomenon at the outlet of the compressor 3, and the entire compression is in adiabatic saturation compression by controlling the amount of the liquid or the liquid spray.
The heat storage working mode is as follows: the first throttle valve 91, the second solenoid valve 82 and the compressor 3 are opened, and the second throttle valve 92, the first solenoid valve 81 and the expander 4 are closed; the specific working principle is that the first throttle valve 91 is opened, low-temperature hot water directly enters a heat transfer pipeline inside the low-temperature phase-change heat storage tank 5 under the pumping pressure of the compressor 3, the low-temperature hot water exchanges isothermal heat with the low-temperature phase-change material in the low-temperature phase-change heat storage tank 5, most of the heat in the low-temperature hot water absorbs the low-temperature phase-change material and becomes low-temperature low-pressure steam, the low-temperature low-pressure steam and quantitative hot water mixed in the low-temperature low-pressure steam or hot water spray enter the compressor 3 in a two-phase flow saturated state, adiabatic saturated compression is carried out in the compressor 3, the compressed saturated steam with high temperature and high pressure enters the high-temperature phase-change heat storage tank 6, isothermal phase change is carried out with the high-temperature phase-change material in the high-temperature phase-change heat storage tank 6, the phase change occurs to store the heat in the high-temperature phase-change material, meanwhile, the saturated steam with high temperature and high pressure is released into hot water with high temperature and high pressure, and the hot water with high temperature and high pressure is finally sent into the high-temperature hot water 2 to be stored in the high-temperature hot water tank 2 by gravity through the second electromagnetic valve 82, and thus the heat storage working mode is completed.
The power generation working mode is as follows: the first throttle valve 91, the second solenoid valve 82 and the compressor 3 are in a closed state, and the second throttle valve 92, the first solenoid valve 81 and the expander 4 are opened to operate; the specific working principle is that the second throttle valve 92 is opened, high-temperature and high-pressure hot water in the high-temperature hot water tank 2 directly enters the high-temperature phase-change heat storage tank 6, the high-temperature and high-pressure hot water absorbs heat of a high-temperature phase-change material in the high-temperature phase-change heat storage tank 6 to be changed into high-temperature and high-pressure steam, then the high-temperature and high-pressure steam directly enters the expander 4 to do work, the expander 4 converts heat energy into mechanical energy to drive the generator 7 to generate power, and finally, the heat energy is converted into electric energy to be output; the water vapor enters the low-temperature phase-change heat storage tank 5 after acting and exchanges heat with the low-temperature phase-change material, the low-temperature phase-change heat storage tank 5 absorbs the water vapor heat after acting to generate phase change, the heat energy is stored in the low-temperature phase-change material, the water vapor after acting is subjected to isothermal heat release to be low-temperature hot water, and the low-temperature hot water flows back to the low-temperature hot water tank by gravity through the first electromagnetic valve 81 and is then stored in the low-temperature hot water tank 1 for recycling in a heat storage working mode.
The phase change material in the low-temperature phase change heat storage tank 5 is a low-temperature solid-liquid phase change material, and the phase low-temperature phase change material carries out isothermal heat release in a heat storage working mode, and is changed from a liquid state to a solid state; in the power generation working mode, the low-temperature phase change material absorbs isothermal heat from solid state to liquid state.
The phase change material in the high-temperature phase change heat storage tank 6 is a high-temperature solid-liquid phase change material, and the high-temperature phase change material absorbs isothermal heat when in a heat storage working mode, and is changed from a solid state to a liquid state; in the power generation working mode, the high-temperature phase change material releases heat isothermally, and the liquid state is changed into the solid state.
All processes of the heat storage operation mode and the power generation operation mode are reversible.
The above-described parallel compressor 3 and expander 4 may be replaced by a compressor 3 and expander 4 coaxially connected in series, as shown in fig. 3.
The compressor 3 and the expander 4 described above in parallel may be replaced by a compression-expansion integrated machine.
The above-mentioned thermodynamic cell cycle medium is water, water vapor or ammonia. The phase change material in the low-temperature phase change heat storage tank 5 is calcium chloride aqueous solution or pure water and the like; the phase change material of the phase change material nitrate in the high-temperature phase change heat storage tank 6 is sodium nitrate, potassium nitrate, sodium nitrite, potassium nitrite or binary salt of nitrate, etc.
The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application, which are intended to be comprehended within the scope of the present application.
Claims (6)
1. The thermodynamic battery system is characterized by comprising a low-temperature hot water tank, a high-temperature hot water tank, a compressor, an expander, a low-temperature phase-change heat storage tank, a high-temperature phase-change heat storage tank, a generator and connecting pipelines between the low-temperature hot water tank, the compressor, the expander and the generator, wherein the expander is electrically connected with the generator; the compressor and the expander are connected in parallel between the low-temperature phase-change heat storage tank and the high-temperature phase-change heat storage tank; the low-temperature hot water tank is communicated with one end of the low-temperature phase-change heat storage tank; the other end of the low-temperature phase-change heat storage tank is respectively communicated with the inlet of the compressor and the outlet of the expander; the outlet of the compressor and the inlet of the expander are respectively communicated with the high-temperature phase-change heat storage tank, and the other end of the high-temperature phase-change heat storage tank is communicated with the high-temperature hot water tank.
2. A thermal battery system as defined in claim 1, further comprising a first solenoid valve, a second solenoid valve, a first throttle valve, and a second throttle valve; the first electromagnetic valve and the first throttle valve are connected in parallel between the low-temperature hot water tank and the low-temperature phase-change heat storage tank; the second electromagnetic valve and the second throttle valve are connected in parallel between the high-temperature hot water tank and the high-temperature phase-change heat storage tank.
3. A thermal battery system as defined in claim 1, wherein the low temperature phase change thermal storage tank is filled with a low temperature phase change material, and heat transfer pipes are provided around the low temperature phase change material.
4. The thermal battery system of claim 1, wherein the high temperature phase change heat storage tank is filled with a high temperature phase change material, and heat transfer pipes are arranged around the high temperature phase change material.
5. A thermodynamic cell system as claimed in claim 1 wherein the inlet of the compressor is adapted to be in an adiabatic saturated compression state by quantitatively controlling the suction of a portion of the liquid or liquid spray during operation.
6. A thermodynamic cell system as claimed in claim 1 wherein the parallel compressor and expander are replaced by a compressor and expander connected in series coaxially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322785003.8U CN220985368U (en) | 2023-10-17 | 2023-10-17 | Thermal battery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322785003.8U CN220985368U (en) | 2023-10-17 | 2023-10-17 | Thermal battery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220985368U true CN220985368U (en) | 2024-05-17 |
Family
ID=91042849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322785003.8U Active CN220985368U (en) | 2023-10-17 | 2023-10-17 | Thermal battery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220985368U (en) |
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2023
- 2023-10-17 CN CN202322785003.8U patent/CN220985368U/en active Active
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