CN209893505U - Electric heat accumulating type cold and hot combined supply system based on composite phase change heat accumulation material - Google Patents
Electric heat accumulating type cold and hot combined supply system based on composite phase change heat accumulation material Download PDFInfo
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- CN209893505U CN209893505U CN201920510691.8U CN201920510691U CN209893505U CN 209893505 U CN209893505 U CN 209893505U CN 201920510691 U CN201920510691 U CN 201920510691U CN 209893505 U CN209893505 U CN 209893505U
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
Abstract
The utility model discloses an electric heat accumulation type combined cooling and heating system based on composite phase change heat accumulation materials, which comprises an electrode boiler, a heat exchanger, a heat accumulation groove, a lithium bromide absorption type water heating unit and a user side; the electrode boiler is connected with the heat exchanger through a first circulation pipeline, the heat exchanger is connected with the user side through a second circulation pipeline, and the heat storage tank and the lithium bromide absorption type water heating unit are positioned in the second circulation pipeline and are respectively connected with the user side in parallel; the lithium bromide absorption type water heating unit is connected with the user side through a third circulation pipeline. The combined cooling and heating system comprises seven operation modes of direct heat supply (or cooling through a refrigerating unit), only storage and no supply, simultaneous storage and heat supply (or cooling) and heat storage tank heat supply (or cooling), and a new generation of combined cooling and heating mode is created.
Description
Technical Field
The utility model relates to a technical field such as energy-conservation, energy storage, electric power peak regulation and heat energy engineering is a collect heat production, heat-retaining, heat supply, cooling in the cold and hot confession system that allies oneself with of electric heat accumulation formula based on compound phase change heat-retaining material of an organic whole.
Background
With the acceleration of industrialization and urbanization and the upgrading of consumption structures, the electric energy demand in China is increased rigidly, the load difference of an electric power system at night and day is increased, and one of effective methods for solving the load deterioration of the electric power system is to adopt a heat storage/cold storage technology to balance peak and valley electric loads.
At present, large public buildings such as hotels, office buildings, residential areas, factories, hospitals, shopping malls and the like need cooling in summer and heating in winter. At present, the cold storage technology mainly adopts ice cold storage and water cold storage air conditioners, a refrigerating unit runs during off-peak electricity to store cold energy, and the stored cold energy is used for supplying all or part of air conditioner loads during daytime electricity consumption peak time. The heat storage technology mainly adopts solid heat storage or phase change heat storage technology, and the electric heating is opened to the millet electricity period and is partly used for the heating with the heat, and another part is stored, heats with the heat of storage daytime. If the system adopts the cold accumulation/heat accumulation device at the same time, the occupied area of the equipment is large, and the utilization rate of the equipment is not high.
The utility model discloses utilize low-priced low ebb electricity to become electric energy conversion heat energy storage in heat storage tank, heat in winter, the heat drive lithium bromide absorption unit with heat storage tank storage in summer supplies cold for cold user, and the heat accumulation device high-usage, the advantage of short, the energy saving of equipment investment recovery cycle. In addition, the system has the advantages of no environmental pollution, no damage to the atmospheric ozone layer and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to prior art not enough, provide a collect heat, heat-retaining, heat supply, cooling in the electric heat formula cold and hot confession system that allies oneself with based on compound phase change heat-retaining material of an organic whole.
In order to achieve the purpose, the utility model adopts the following technical scheme:
an electric heat accumulating type combined cooling and heating system based on a composite phase-change heat accumulation material comprises an electrode boiler, a heat exchanger, a heat accumulation groove, a lithium bromide absorption type water heating unit and a user side;
the electrode boiler is connected with the heat exchanger through a first circulating pipeline, and the heat exchanger is connected with the user side through a second circulating pipeline; the heat storage tank and the lithium bromide absorption type water heating unit are positioned in the second circulation pipeline and are respectively connected with the user side in parallel; the lithium bromide absorption type water heating unit is connected with the user side through a third circulation pipeline;
when heat is supplied to a user side, a heat medium generated from the electrode boiler enters the heat exchanger through the first circulating pipeline, exchanges heat with a cold medium which is discharged from the user side and returns to the heat exchanger through the second circulating pipeline, and the heated cold medium is used as a heat source and is conveyed to the user side through the second circulating pipeline again for heat supply; or the cold medium heated by the heat exchanger enters the heat storage tank and transfers heat to the phase-change heat storage material of the heat storage tank for storage, when the electrode boiler does not generate heat medium, the cold medium from the user side flows through the heat storage tank to exchange heat with the phase-change heat storage material of the heat storage tank, and the heated cold medium is taken as a heat source and is conveyed to the user side again;
when the cold is supplied to the user side, the medium heated by the heat exchanger enters the lithium bromide absorption type water heating unit and generates a cold source, and the cold is supplied to the user side through the third circulating pipeline; or the heat stored in the heat storage tank heats the medium in the second circulation pipeline, then enters the lithium bromide absorption type water heating unit, generates a cold source, and supplies cold to the user side through the third circulation pipeline.
Specifically, a first circulating water pump is arranged on the first circulating pipeline, and the heat medium generated by the electrode boiler is conveyed into the heat exchanger for heat exchange and then returns to the electrode boiler again.
The liquid inlet and the liquid outlet of the heat storage tank are connected to a second circulation pipeline through a first three-way valve and a second three-way valve respectively, and a second circulation water pump is arranged on a pipeline of the liquid inlet of the heat storage tank.
And the liquid inlet and the liquid outlet of the lithium bromide absorption type water heating unit are respectively connected in the second circulation pipeline through a third three-way valve and a fourth three-way valve.
A third circulating water pump is arranged on a pipeline between the first three-way valve and the third three-way valve; the liquid inlet of the heat storage tank is connected with a pipeline between the first three-way valve and the third three-way valve through another pipeline, and a stop valve is arranged on the pipeline.
And a fourth circulating water pump is arranged on the third circulating pipeline.
Preferably, the heat medium in the first circulating pipeline is brine; and the cold medium in the second circulating pipeline is desalted and deoxygenated water.
The heat storage tank comprises a shell, a heat exchange coil pipe positioned in the shell and a phase-change heat storage material filled around the heat exchange coil pipe;
the heat exchange coil is a carbon steel pipe, a stainless steel pipe, a glass steel pipe, a copper pipe, a brass pipe, a galvanized pipe or a polytetrafluoroethylene pipe;
the phase-change heat storage material is any one or a mixture of more than two of sodium acetate trihydrate, aluminum sulfate octadecahydrate, ammonium alum, barium hydroxide octahydrate, alum or magnesium nitrate hexahydrate.
Furthermore, a plurality of square fins are wound outside the tube wall of the heat exchange coil, and the square fins are in contact with the phase-change heat storage material.
It should be noted that, the number of the heat storage tanks may be 1 or more according to actual needs, and the arrangement may be centralized or distributed.
The lithium bromide absorption type water heating unit is an existing device and comprises an evaporator, an absorber, a high-pressure generator, a low-pressure generator, a condenser, a heat exchanger and the like. The lithium bromide solution is used as an absorbent, high-temperature water is used as a refrigerant, the purpose of refrigeration is achieved by utilizing the evaporation and heat absorption of water under high vacuum, the evaporated refrigerant vapor is absorbed by the lithium bromide solution, the solution becomes thin, the process is carried out in an absorber, then the solution is heated and separated by taking heat energy as power, the process is carried out in a generator, the vapor obtained in the generator is condensed into water in a condenser, the water is transmitted to an evaporator for evaporation after throttling, and the process is repeated so as to achieve the purpose of refrigeration.
Has the advantages that:
1. the utility model provides a control method of this system utilizes low-priced low ebb electricity to turn into heat energy with the electric energy and stores in the heat accumulation groove, has realized central heating and concentrated cooling, and heating/cooling all adopt same set of heat accumulation device, and the system possesses that area is less, equipment investment recovery cycle is short, the energy saving, reduces advantages such as environmental pollution. Meets the policy of energy conservation and emission reduction advocated by the state at present and the requirements of building an energy-saving and environment-friendly society.
2. The utility model discloses electricity heat accumulation formula cold and hot confession system's operational mode has 7 kinds: the electrode boiler directly supplies heat (or supplies cold through a refrigerating unit), only stores and does not supply heat (or supplies cold) while storing, and supplies heat (or supplies cold) through the heat storage tank. The winter operation mode has four modes of direct heat supply, only storage and no supply, simultaneous storage and simultaneous heat supply and heat storage and heat supply of the electrode boiler, and the summer operation mode has four modes of cold supply, only storage and no supply, simultaneous storage and simultaneous cold supply and cold supply of the electrode boiler through a refrigerating unit, so that a new generation of cold and heat combined supply mode is created.
Drawings
These and/or other advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings and the following detailed description.
Fig. 1 is a schematic view of the overall structure of the combined cooling and heating system.
Fig. 2 is a schematic diagram of a winter heating flow of the combined cooling and heating system.
Fig. 3 is a schematic diagram of the combined cooling and heating system and a cooling process in summer.
Wherein each reference numeral represents:
1. an electrode boiler; 2. a first circulating water pump; 3. a heat exchanger; 4. a first three-way valve; 4-1, connecting a first three-way valve with a first pipe; 4-2, connecting a second three-way valve with a pipe; 4-3, connecting a third connecting pipe of the first three-way valve; 5. a second circulating water pump; 6. a heat storage tank; 7. a second three-way valve; 7-1, connecting a first second three-way valve with a first pipe; 7-2, connecting a second three-way valve with a second pipe; 7-3, connecting a second three-way valve with a third pipe; 8. a stop valve; 9. a third circulating water pump; 10. a lithium bromide absorption water heating unit; 11. a third three-way valve; 11-1, connecting a first third three-way valve with a pipe; 11-2, and a third three-way valve is connected with a second pipe; 11-3, and a third three-way valve connecting pipe III; 12. a fourth three-way valve; 12-1, connecting a first fourth three-way valve with a first pipe; 12-2, and a fourth three-way valve is connected with a second pipe; 12-3, connecting a third connecting pipe of a fourth three-way valve; 13. a user side; 14. and a fourth circulating water pump.
Detailed Description
The invention will be better understood from the following examples.
The drawings in the specification show the structure, ratio, size, etc. only for the purpose of matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and not for the purpose of limiting the present invention, so the present invention does not have the essential meaning in the art, and any structure modification, ratio relationship change or size adjustment should still fall within the scope covered by the technical content disclosed in the present invention without affecting the function and achievable purpose of the present invention. Meanwhile, the terms "upper", "lower", "front", "rear", "middle", and the like used in the present specification are for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.
As shown in fig. 1, the electric heat accumulating type combined cooling and heating system based on the composite phase-change heat accumulation material comprises an electrode boiler 1, a heat exchanger 3, a heat accumulation tank 6, a lithium bromide absorption type water heating unit 10 and a user end 13;
the electrode boiler 1 is connected with the heat exchanger 3 through a first circulating pipeline, and the heat exchanger 3 is connected with the user side 13 through a second circulating pipeline; the heat storage tank 6 and the lithium bromide absorption type water heating unit 10 are positioned in the second circulation pipeline and are respectively connected with the user terminal 13 in parallel; the lithium bromide absorption type water heating unit 10 is connected with the user terminal 13 through a third circulation pipeline;
when heat is supplied to the user side 13, the heat medium generated from the electrode boiler 1 enters the heat exchanger 3 through the first circulation pipeline, exchanges heat with the cold medium which is discharged from the user side 13 and returns to the heat exchanger 3 through the second circulation pipeline, and the heated cold medium is used as a heat source and is conveyed to the user side 13 through the second circulation pipeline again for supplying heat; or the cold medium heated by the heat exchanger 3 enters the heat storage tank 6 and transfers heat to the phase-change heat storage material of the heat storage tank 6 for storage, when the electrode boiler 1 does not generate heat medium, the cold medium from the user terminal 13 flows through the heat storage tank 6 to exchange heat with the phase-change heat storage material of the heat storage tank 6, and the heated cold medium is taken as a heat source and is conveyed to the user terminal 13 again;
when the cold is supplied to the user terminal 13, the medium heated by the heat exchanger 3 enters the lithium bromide absorption type water heating unit 10 and generates a cold source, and the cold is supplied to the user terminal 13 through the third circulating pipeline; or, the heat stored in the heat storage tank 6 heats the medium in the second circulation pipeline, then enters the lithium bromide absorption type water heating unit 10, generates a cold source, and supplies cold to the user terminal 13 through the third circulation pipeline.
And a first circulating water pump 2 is arranged on the first circulating pipeline, and the heat medium generated by the electrode boiler 1 is conveyed into the heat exchanger 3 for heat exchange and then returns to the electrode boiler 1 again.
A liquid inlet and a liquid outlet of the heat storage tank 6 are respectively connected in a second circulation pipeline through a first three-way valve 4 and a second three-way valve 7; the first three-way valve 4 is connected with a liquid outlet of the heat exchanger 3 through a first three-way valve connecting pipe I4-1, is connected with a liquid inlet of the heat storage tank 6 through a first three-way valve connecting pipe II 4-2, and is connected with a third circulating water pump 9 through a first three-way valve connecting pipe III 4-3; a second circulating water pump 5 is arranged on the second connecting pipe 4-2 of the first three-way valve; the second three-way valve 7 is connected with the fourth three-way valve 12 through a first second three-way valve connecting pipe 7-1, connected with the liquid inlet of the heat exchanger 3 through a second three-way valve connecting pipe 7-2 and connected with the liquid outlet of the heat storage tank 6 through a third second three-way valve connecting pipe.
A liquid inlet and a liquid outlet of the lithium bromide absorption type water heating unit 10 are respectively connected in a second circulation pipeline through a third three-way valve 11 and a fourth three-way valve 12; the third three-way valve 11 is connected with a third circulating water pump 9 through a third three-way valve connecting pipe I11-1, connected with a user terminal 13 through a third three-way valve connecting pipe II 11-2, and connected with a lithium bromide absorption type water heating unit 10 through a third three-way valve connecting pipe III 11-3; the fourth three-way valve 12 is connected to the lithium bromide absorption water heating unit 10 through a fourth three-way valve connecting pipe one 12-1, connected to the user terminal 13 through a fourth three-way valve connecting pipe two 12-2, and connected to the second three-way valve 7 through a fourth three-way valve connecting pipe three 12-3.
A third circulating water pump 9 is arranged on a pipeline between the first three-way valve 4 and the third three-way valve 11; the liquid inlet of the heat storage tank 6 is connected with a third three-way valve connecting pipe 4-3 through another pipeline, and a stop valve 8 is arranged on the pipeline.
And a fourth circulating water pump 14 is arranged on the third circulating pipeline.
In winter, the lithium bromide absorption refrigerating unit is closed, the valves 11 and 12 are opened, and the pipelines 11-1, 11-2, 12-2 and 12-3 are connected.
The electrode boiler direct heating mode specifically operates as follows: opening the three-way valve 4, connecting the 4-1 and 4-3 pipelines, opening the three-way valve 7, connecting the 7-1 and 7-2 pipelines, closing the stop valve 8, opening the circulating pumps 2 and 9, opening the electrode boiler 1, and transmitting heat to the user end 13 through the heat exchanger 3.
The storage-only and non-supply mode specifically comprises the following operations: during the period of off-peak electricity or abandoned wind electricity, the three-way valve 4 is opened, the 4-1 and 4-2 pipelines are connected, the three-way valve 7 is opened, the 7-2 and 7-3 pipelines are connected, the stop valve 8 is closed, the circulating pumps 2 and 5 are opened, the electrode boiler 1 is started, and heat is transmitted to the heat storage tank 6 through the heat exchanger 3.
The limit is held and is supplied heat the mode, and the concrete operation does: during the period of off-peak electricity or wind abandoning electricity, the three-way valve 4 is opened, the pipelines 4-1, 4-2 and 4-3 are connected, the three-way valve 7 is opened, the pipelines 7-1, 7-2 and 7-3 are connected, the valve 8 is closed, the circulating pumps 2, 5 and 9 are opened, the electrode boiler 1 is opened, part of heat is transmitted to the heat storage tank 6 through the circulating pump 5, and part of heat is transmitted to the user side 13 through the circulating pump 9.
The heat storage and supply mode comprises the following specific operations: during the flat electricity or peak electricity in daytime, the electrode boiler 1 is closed, the circulating pump 2 is closed, the three-way valve 4 is closed, the stop valve 8 is opened, the three-way valve 7 is opened, the 7-1 and 7-3 pipelines are connected, the circulating water pump 9 is started, and the heat stored in the heat storage tank 6 is transmitted to the user side 13 through the circulating water pump.
And (3) opening the lithium bromide absorption refrigerating unit 10 in summer, opening the valves 11 and 12, and connecting the pipelines 11-1, 11-3, 12-1 and 12-3.
The electrode boiler direct cooling mode specifically operates as follows: opening the three-way valve 4, connecting the 4-1 and 4-3 pipelines, opening the three-way valve 7, connecting the 7-1 and 7-2 pipelines, closing the stop valve 8, opening the circulating pumps 2 and 9, opening the electrode boiler 1, transmitting heat to the lithium bromide absorption refrigerating unit 10 through the heat exchanger 3, and supplying cold to the user terminal 13 by using hot water as a driving heat source.
The side-storage cooling mode specifically comprises the following operations: during the period of off-peak electricity or abandoned wind electricity, the three-way valve 4 is opened, the pipelines 4-1, 4-2 and 4-3 are connected, the three-way valve 7 is opened, the pipelines 7-1, 7-2 and 7-3 are connected, the stop valve 8 is closed, the circulating pumps 2, 5 and 9 are opened, the electrode boiler 1 is opened, part of heat is transmitted to the heat storage tank through the circulating pump 5, part of heat is transmitted to the lithium bromide absorption refrigerating unit 10 through the circulating pump 9, and hot water is used as a driving heat source to supply cold to the user terminal 13.
The heat and cold storage mode comprises the following specific operations: during the period of flat electricity or peak electricity in the daytime, the electrode boiler 1 is closed, the circulating pump 2 is closed, the three-way valve 4 is closed, the stop valve 8 is opened, the three-way valve 7 is opened, the pipelines 7-1 and 7-3 are connected, a part of heat is transmitted to the lithium bromide absorption refrigerating unit 10 through the circulating pump 9, and hot water is used as a driving heat source to supply cold to the user side 13.
The utility model provides a thinking and method of cold and hot confession system of electricity heat accumulation formula based on compound phase transition heat-retaining material specifically realize that this technical scheme's method and approach are many, above only the utility model discloses a preferred embodiment should point out, to the ordinary skilled person in this technical field, is not deviating from the utility model discloses under the prerequisite of principle, can also make a plurality of improvements and moist decorations, these improvements should also be regarded as with moist decorations the utility model discloses a protection scope. All the components not specified in the present embodiment can be realized by the prior art.
Claims (9)
1. An electric heat storage type combined cooling and heating system based on composite phase-change heat storage materials is characterized by comprising an electrode boiler (1), a heat exchanger (3), a heat storage tank (6), a lithium bromide absorption type water heating unit (10) and a user side (13);
the electrode boiler (1) is connected with the heat exchanger (3) through a first circulating pipeline, and the heat exchanger (3) is connected with the user side (13) through a second circulating pipeline; the heat storage tank (6) and the lithium bromide absorption type water heating unit (10) are positioned in the second circulation pipeline and are respectively connected with the user end (13) in parallel; the lithium bromide absorption type water heating unit (10) is connected with a user terminal (13) through a third circulation pipeline;
when heat is supplied to a user side (13), a heat medium generated from the electrode boiler (1) enters the heat exchanger (3) through the first circulating pipeline, exchanges heat with a cold medium which is discharged from the user side (13) and returns to the heat exchanger (3) through the second circulating pipeline, and the heated cold medium is used as a heat source and is conveyed to the user side (13) through the second circulating pipeline again to supply heat; or the cold medium heated by the heat exchanger (3) enters the heat storage tank (6) to transfer heat to the phase-change heat storage material of the heat storage tank (6) for storage, when the electrode boiler (1) does not generate heat medium, the cold medium from the user end (13) flows through the heat storage tank (6) to exchange heat with the phase-change heat storage material of the heat storage tank (6), and the heated cold medium is taken as a heat source to be conveyed to the user end (13) again;
when the cold is supplied to the user side (13), the medium heated by the heat exchanger (3) enters the lithium bromide absorption type water heating unit (10) and generates a cold source, and the cold is supplied to the user side (13) through the third circulating pipeline; or the heat stored in the heat storage tank (6) heats the medium in the second circulating pipeline, then enters the lithium bromide absorption type water heating unit (10) and generates a cold source, and the cold source supplies cold to the user end (13) through the third circulating pipeline.
2. The electric heat accumulating type combined cooling and heating system based on the composite phase-change heat accumulation material as claimed in claim 1, wherein a first circulating water pump (2) is arranged on the first circulating pipeline, and the heat medium generated by the electrode boiler (1) is conveyed into the heat exchanger (3) for heat exchange and then returns to the electrode boiler (1) again.
3. The electric heat accumulating type combined cooling and heating system based on the composite phase-change heat accumulation material as claimed in claim 2, wherein a liquid inlet and a liquid outlet of the heat accumulating tank (6) are respectively connected to a second circulation pipeline through a first three-way valve (4) and a second three-way valve (7), and a second circulation water pump (5) is arranged on a pipeline of the liquid inlet of the heat accumulating tank (6).
4. The electric heat accumulating type combined cooling and heating system based on the composite phase-change heat accumulation material as claimed in claim 3, wherein a liquid inlet and a liquid outlet of the lithium bromide absorption type water heating unit (10) are respectively connected to the second circulation pipeline through a third three-way valve (11) and a fourth three-way valve (12).
5. The electric heat accumulating type combined cooling and heating system based on the composite phase-change heat accumulation material as claimed in claim 4, wherein a third circulating water pump (9) is arranged on a pipeline between the first three-way valve (4) and the third three-way valve (11); the liquid inlet of the heat storage tank (6) is connected with a pipeline between the first three-way valve (4) and the third three-way valve (11) through another pipeline, and a stop valve (8) is arranged on the pipeline.
6. The electric heat accumulating type combined cooling and heating system based on the composite phase-change heat accumulation material as claimed in claim 1, wherein a fourth circulating water pump (14) is arranged on the third circulating pipeline.
7. An electric heat accumulating type combined cooling and heating system based on composite phase change heat accumulation material as claimed in claim 1, wherein the heat medium in the first circulation pipeline is brine; and the cold medium in the second circulating pipeline is desalted and deoxygenated water.
8. The electric heat accumulating type combined cooling and heating system based on the composite phase-change heat accumulation material as claimed in claim 1, wherein the heat accumulating tank (6) comprises a shell, a heat exchange coil arranged in the shell, and the phase-change heat accumulation material filled around the heat exchange coil;
the heat exchange coil is a carbon steel pipe, a stainless steel pipe, a glass steel pipe, a copper pipe, a brass pipe, a galvanized pipe or a polytetrafluoroethylene pipe;
the phase-change heat storage material is any one or a mixture of more than two of sodium acetate trihydrate, aluminum sulfate octadecahydrate, ammonium alum, barium hydroxide octahydrate, alum or magnesium nitrate hexahydrate.
9. An electric heat accumulating type combined cooling and heating system based on composite phase-change heat storage materials as claimed in claim 8, wherein a plurality of square fins are wound outside the tube wall of the heat exchange coil, and the square fins are in contact with the phase-change heat storage materials.
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| CN201920510691.8U CN209893505U (en) | 2019-04-16 | 2019-04-16 | Electric heat accumulating type cold and hot combined supply system based on composite phase change heat accumulation material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112629300A (en) * | 2020-11-19 | 2021-04-09 | 东北大学 | Combined cooling, heating and power system utilizing fused salt to store heat |
| CN113418322A (en) * | 2021-06-23 | 2021-09-21 | 国网福建省电力有限公司厦门供电公司 | High-temperature electric heat accumulation type cold and hot combined supply device |
| WO2024066297A1 (en) * | 2022-09-30 | 2024-04-04 | 比亚迪股份有限公司 | Energy supply system suitable for salt lake lithium extraction and method for supplying energy by using same |
-
2019
- 2019-04-16 CN CN201920510691.8U patent/CN209893505U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112629300A (en) * | 2020-11-19 | 2021-04-09 | 东北大学 | Combined cooling, heating and power system utilizing fused salt to store heat |
| CN113418322A (en) * | 2021-06-23 | 2021-09-21 | 国网福建省电力有限公司厦门供电公司 | High-temperature electric heat accumulation type cold and hot combined supply device |
| WO2024066297A1 (en) * | 2022-09-30 | 2024-04-04 | 比亚迪股份有限公司 | Energy supply system suitable for salt lake lithium extraction and method for supplying energy by using same |
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