CN219995983U - Heat storage tank based on phase change energy storage and air source heat pump system using same - Google Patents
Heat storage tank based on phase change energy storage and air source heat pump system using same Download PDFInfo
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- CN219995983U CN219995983U CN202320928959.6U CN202320928959U CN219995983U CN 219995983 U CN219995983 U CN 219995983U CN 202320928959 U CN202320928959 U CN 202320928959U CN 219995983 U CN219995983 U CN 219995983U
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- phase change
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- 238000005338 heat storage Methods 0.000 title claims abstract description 115
- 230000008859 change Effects 0.000 title claims abstract description 25
- 238000004146 energy storage Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000012782 phase change material Substances 0.000 claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 claims abstract description 8
- 239000010949 copper Substances 0.000 claims abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 230000005494 condensation Effects 0.000 claims description 14
- 238000009833 condensation Methods 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000009825 accumulation Methods 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 10
- 230000007547 defect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 5
- 235000017491 Bambusa tulda Nutrition 0.000 description 5
- 241001330002 Bambuseae Species 0.000 description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 5
- 239000011425 bamboo Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011217 control strategy Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model discloses a heat storage tank based on phase change energy storage and an air source heat pump system using the same, comprising an inner heat storage cylinder and an outer heat storage cylinder, wherein a hollow pipe for hot water to flow is arranged at the shaft core of the inner heat storage cylinder, copper fins are arranged on the outer wall of the hollow pipe, the inner cavity of the inner heat storage cylinder is filled with a first phase change material, and the inner cavity of the outer heat storage cylinder is filled with a second phase change material. The utility model has the advantages of simple structure, reasonable design and convenient realization, and provides the cold and hot water heat storage tank based on the layered structure design of the phase-change air source heat pump heat storage tank, so that the problem that the existing heat storage pipe provided in the background art cannot well change materials according to requirements in use and cannot well prevent heat loss when the heat storage tank is used is solved. These defects further lead to the increase of the number of the heat storage tanks and the occupied space, and the problem of inaccurate heat management, so that the heat storage tank has good use effect and is convenient to popularize and use.
Description
Technical Field
The utility model belongs to the technical field of heat storage tanks and application thereof, and particularly relates to a phase-change energy storage-based heat storage tank and an air source heat pump system applying the same.
Background
With the continuous progress of urban areas in China, urban population in China is continuously increased, and the demands of people for heating and cooling are increased. As the coverage of the cooling and heating equipment in the building increases, the amount of energy consumed by the equipment increases significantly. At present, the total electric quantity used for Chinese refrigeration and heat supply accounts for 15% of the total electric quantity of the whole society, and rises at a rate of 20% per year, so that the space can be saved by 30% -50%. The air source heat pump can be used for saving energy consumption by virtue of the characteristics of absorbing low-grade energy and low emission in air. And the air source heat pump often has the problems of frosting, unstable heating quantity, unbalanced energy supply and demand and the like in use.
In the prior art, the production process of the cold water heat storage tank is limited, so that the heat storage tank has certain defects in actual use. Most heat accumulating pipes today are designed with a single phase change material, and the material cannot be well replaced according to the requirements in use, and heat dissipation cannot be well prevented when the heat accumulating tank is used. This drawback further leads to an increase in the number and space occupied by the heat storage tanks, which is not sufficiently precise for the management of heat, and thus is disadvantageous for practical production and application.
Disclosure of Invention
The utility model aims to solve the technical problems of the prior art, and provides a heat storage tank based on phase change energy storage, which has the advantages of simple structure, reasonable design and convenient realization, and provides a cold and hot water heat storage tank based on phase change air source heat pump heat storage tank layered structure design, so as to solve the problems that the conventional heat storage pipe in the prior art can not well change materials according to requirements in use and can not well prevent heat loss in use. These defects further lead to the increase of the number of the heat storage tanks and the occupied space, and the problem of inaccurate heat management, so that the heat storage tank has good use effect and is convenient to popularize and use.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a heat accumulation tank based on phase change energy storage, includes interior heat accumulation section of thick bamboo and outer heat accumulation section of thick bamboo, the axle core department of interior heat accumulation section of thick bamboo is provided with the hollow tube that supplies hot water to flow, be provided with the copper fin on the outer wall of hollow tube, interior heat accumulation section of thick bamboo inner chamber is filled with first phase change material, the inner chamber of outer heat accumulation section of thick bamboo is filled with second phase change material.
According to the phase-change energy storage-based heat storage tank, the inner heat storage cylinder and the outer heat storage cylinder are hollow cylinders, and the outer diameter of the inner heat storage cylinder is the same as the inner diameter of the outer heat storage cylinder.
According to the heat storage tank based on phase change energy storage, the buckle is connected between the inner heat storage cylinder and the outer heat storage cylinder.
According to the heat storage tank based on phase change energy storage, the bottoms of the inner heat storage cylinder and the outer heat storage cylinder are respectively provided with the working medium outlet valve.
According to the heat storage tank based on phase change energy storage, the lifting hook is arranged at the top of the inner heat storage cylinder.
According to the heat storage tank based on phase change energy storage, the copper fins are variable-angle fins.
The utility model also discloses an air source heat pump system, which adopts the heat storage tank based on phase change energy storage, the air source heat pump system comprises a condensation heat exchanger, a heat storage tank and a user side, the front end of the condensation heat exchanger is connected with a compressor, the front end of the compressor is connected with an evaporator, a throttle valve is arranged between the evaporator and the condensation heat exchanger, a first water pump is arranged between the condensation heat exchanger and the heat storage tank, the heat storage tank is connected with a three-way valve, the first water pump is connected with the three-way valve through a pipeline, the three-way valve is connected with an electric auxiliary heating device through a pipeline, and a second water pump and a valve are arranged between the heat storage tank and the user side.
Compared with the prior art, the utility model has the following advantages: the utility model has the advantages of simple structure, reasonable design and convenient realization, and provides the cold and hot water heat storage tank based on the layered structure design of the phase-change air source heat pump heat storage tank, so that the problem that the existing heat storage pipe provided in the background art cannot well change materials according to requirements in use and cannot well prevent heat loss when the heat storage tank is used is solved. These defects further lead to the increase of the number of the heat storage tanks and the occupied space, and the problem of inaccurate heat management, so that the heat storage tank has good use effect and is convenient to popularize and use.
The technical scheme of the utility model is further described in detail through the drawings and the embodiments.
Drawings
FIG. 1 is a schematic view of a thermal storage tank according to the present utility model;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view of the overall structure of the heat storage tank of the present utility model;
fig. 4 is a schematic diagram of the composition of the air source heat pump system of the present utility model.
Reference numerals illustrate:
1-an inner heat storage cylinder; 2-an outer heat storage cylinder; 3-hollow tube;
4-copper fins; 5-a first phase change material; 6-a second phase change material;
7, a buckle; 8-a working medium outlet valve; 9, lifting hook;
11-a condensing heat exchanger; 12-a heat storage tank; 13-user side;
14-a compressor; 15-an evaporator; 16-a throttle valve;
17-a first water pump; 18-a three-way valve; 19-an electric auxiliary heating device;
20-a second water pump; 21-valve.
Detailed Description
As shown in fig. 1 to 3, the phase-change energy storage-based heat storage tank comprises an inner heat storage cylinder 1 and an outer heat storage cylinder 2, wherein a hollow pipe 3 for hot water to flow is arranged at the shaft core of the inner heat storage cylinder 1, copper fins 4 are arranged on the outer wall of the hollow pipe 3, a first phase-change material 5 is filled in the inner cavity of the inner heat storage cylinder 1, and a second phase-change material 6 is filled in the inner cavity of the outer heat storage cylinder 2.
In the concrete implementation, the heat conduction material near the hot fluid is a material with large heat conduction coefficient and large phase change latent heat; and materials with small heat conductivity coefficient, relatively small phase change latent heat, small corrosiveness and high economy are selected at the position close to the cylindrical wall.
In this embodiment, the inner heat storage cylinder 1 and the outer heat storage cylinder 2 are hollow cylinders, and the outer diameter of the inner heat storage cylinder 1 is the same as the inner diameter of the outer heat storage cylinder 2.
In this embodiment, a buckle 7 is connected between the inner heat storage cylinder 1 and the outer heat storage cylinder 2.
During specific implementation, the inner heat storage pipe is connected with the outer heat storage pipe through a buckle, and the outer heat storage tank is provided with the buckle, and the inner heat storage pipe can be additionally provided with a plastic buckle. After the inner heat storage tank is vertically arranged in the outer heat storage pipe, the inner heat storage pipe is rotated clockwise to clamp the buckle; the buckle can be disassembled by rotating the inner heat storage tube anticlockwise, and then the inner heat storage tube is taken out vertically.
In this embodiment, the bottoms of the inner heat storage cylinder 1 and the outer heat storage cylinder 2 are both provided with a working medium outlet valve 8.
In this embodiment, a hanging hook 9 is disposed at the top of the inner heat storage cylinder 1.
In specific implementation, the two lifting hooks are additionally arranged at the inner heat storage pipe orifice so as to split the inner heat storage pipe and the outer heat storage pipe.
In this embodiment, the copper fin 4 is a variable angle fin.
In the implementation, the angle-variable fin is formed by a straight fin and a short support and a long support to form a connecting rod structure so as to control the angle change of the fin. The temperature distribution of the inner heat accumulating pipe can be changed by changing the angles of the fins, and the working medium can be replaced conveniently.
The working principle of the heat storage tank is as follows: under the general condition of the air source heat pump, the working condition of the air source heat pump can continuously heat in the daytime, and the heat storage tank is required to supplement heat at night, so that the temperature difference between the water temperature and the heat storage material is reduced along with the reduction of the air temperature at night. In order to ensure that the heat of the heat storage pipe is easy to store and difficult to dissipate, a heat conduction material close to a hot fluid is a material with large heat conduction coefficient and large phase change latent heat; and materials with small heat conductivity coefficient, relatively small phase change latent heat, small corrosiveness and high economy are selected at the position close to the cylindrical wall. Thus, the heat storage tank with easy heat preservation and difficult dissipation is obtained.
As shown in fig. 4, the air source heat pump system of the utility model comprises a condensation heat exchanger 11, a heat storage tank 12 and a user side 13, wherein the front end of the condensation heat exchanger 11 is connected with a compressor 14, the front end of the compressor 14 is connected with an evaporator 15, a throttle valve 16 is arranged between the evaporator 15 and the condensation heat exchanger 11, a first water pump 17 is arranged between the condensation heat exchanger 11 and the heat storage tank 12, a three-way valve 18 is connected on the heat storage tank 12, the first water pump 17 is connected with the three-way valve 18 through a pipeline, the three-way valve 18 is connected with an electric auxiliary heating device 19 through a pipeline, and a second water pump 20 and a valve 21 are arranged between the heat storage tank 12 and the user side 13.
The working principle of the air source heat pump system is as follows: after the heat exchange between the hot water supply and the refrigerant in the condensation heat exchanger 11, the hot water is extracted by the first water pump 17 to the three-way valve 18 to determine, and the heat storage control strategy is as follows: firstly, setting the water temperature of water supply to be T ℃; when the temperature of water discharged from the condensation heat exchanger 11 is higher than T ℃, the water flows into the heat storage tank 12 to supply heat to the phase change material, and when the temperature of the water is reduced by T ℃, the water is supplied to the user terminal 13; when the temperature of the water discharged from the condensing heat exchanger 11 is less than or equal to T ℃, two cases are again divided: the first case is that the heat storage tank 12 absorbs heat storage when sufficient heat is stored, and the user terminal 13 is supplied with hot water when the water temperature rises by T ℃; in the second case, when there is insufficient heat in the heat storage tank 12 and the water temperature is low, the electric auxiliary heating device 19 is used for auxiliary heating, and when the water temperature rises to T ℃, the water is supplied to the user terminal 13.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, and any simple modification, variation and equivalent structural changes made to the above embodiment according to the technical substance of the present utility model still fall within the scope of the technical solution of the present utility model.
Claims (7)
1. Heat accumulation jar based on phase transition energy storage, its characterized in that: the heat storage device comprises an inner heat storage cylinder (1) and an outer heat storage cylinder (2), wherein a hollow tube (3) for hot water flow is arranged at the shaft core of the inner heat storage cylinder (1), copper fins (4) are arranged on the outer wall of the hollow tube (3), a first phase change material (5) is filled in the inner cavity of the inner heat storage cylinder (1), and a second phase change material (6) is filled in the inner cavity of the outer heat storage cylinder (2).
2. A phase change energy storage based thermal storage tank as defined in claim 1, wherein: the inner heat storage cylinder (1) and the outer heat storage cylinder (2) are hollow cylinders, and the outer diameter of the inner heat storage cylinder (1) is the same as the inner diameter of the outer heat storage cylinder (2).
3. A phase change energy storage based thermal storage tank as defined in claim 1, wherein: a buckle (7) is connected between the inner heat storage cylinder (1) and the outer heat storage cylinder (2).
4. A phase change energy storage based thermal storage tank as defined in claim 1, wherein: the bottoms of the inner heat storage cylinder (1) and the outer heat storage cylinder (2) are respectively provided with a working medium outlet valve (8).
5. A phase change energy storage based thermal storage tank as defined in claim 1, wherein: the top of the inner heat storage cylinder (1) is provided with a lifting hook (9).
6. A phase change energy storage based thermal storage tank as defined in claim 1, wherein: the copper fins (4) are variable-angle fins.
7. An air source heat pump system, characterized in that: use the heat storage tank based on phase change energy storage according to claim 1, the air source heat pump system includes condensation heat exchanger (11), heat storage tank (12) and user end (13), the front end of condensation heat exchanger (11) is connected with compressor (14), the front end of compressor (14) is connected with evaporimeter (15), be provided with choke valve (16) between evaporimeter (15) and condensation heat exchanger (11), be provided with first water pump (17) between condensation heat exchanger (11) and heat storage tank (12), be connected with three-way valve (18) on heat storage tank (12), first water pump (17) are connected with three-way valve (18) through the pipeline, three-way valve (18) are connected with electric auxiliary heating device (19) through the pipeline, be provided with second water pump (20) and valve (21) between heat storage tank (12) and user end (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320928959.6U CN219995983U (en) | 2023-04-21 | 2023-04-21 | Heat storage tank based on phase change energy storage and air source heat pump system using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320928959.6U CN219995983U (en) | 2023-04-21 | 2023-04-21 | Heat storage tank based on phase change energy storage and air source heat pump system using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219995983U true CN219995983U (en) | 2023-11-10 |
Family
ID=88609738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320928959.6U Active CN219995983U (en) | 2023-04-21 | 2023-04-21 | Heat storage tank based on phase change energy storage and air source heat pump system using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219995983U (en) |
-
2023
- 2023-04-21 CN CN202320928959.6U patent/CN219995983U/en active Active
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