CN216790949U - Ultra-long energy-releasing closed air source heat pump energy storage system - Google Patents
Ultra-long energy-releasing closed air source heat pump energy storage system Download PDFInfo
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- CN216790949U CN216790949U CN202220267417.4U CN202220267417U CN216790949U CN 216790949 U CN216790949 U CN 216790949U CN 202220267417 U CN202220267417 U CN 202220267417U CN 216790949 U CN216790949 U CN 216790949U
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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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Abstract
The utility model discloses an ultra-long energy-releasing closed type air source heat pump energy storage system which comprises a direct-supply air source heat pump unit, a heat-storage air source heat pump unit, a cold-storage water tank, a heat-storage water tank, a direct-supply system circulating water pump, an energy-storage system circulating water pump, a first constant-pressure water supplementing device and a second constant-pressure water supplementing device, wherein the direct-supply air source heat pump unit is connected with the direct-supply system circulating water pump through a first pipeline, the direct-supply air source heat pump unit is connected with the second constant-pressure water supplementing device through a second pipeline, the heat-storage air source heat pump unit is sequentially connected with the energy-storage system circulating water pump, the heat-storage water tank and the first constant-pressure water supplementing device through a third pipeline, the third pipeline is connected with the cold-storage water tank through a fourth pipeline, and the heat-storage air source heat pump units are arranged in two groups and are connected in parallel. The utility model has the advantages of convenient and flexible use, energy saving and environmental protection, has the effect of constant pressure water supplement and improves the use stability.
Description
Technical Field
The utility model relates to the technical field of thermal engineering, in particular to an ultra-long energy-releasing closed air source heat pump energy storage system.
Background
The following problems exist in the thermal engineering at present: 1. the water heat storage uses an electric heating wire to heat water to 80-130 ℃, and the heat storage mode is sensible heat storage. The heat storage mode has the advantages of small heat storage density, large heat loss and large occupied area. 2. The solid heat storage brick heats circulating air by using an electric heating wire, the temperature of the heat storage brick is raised to 500-800 ℃ by the air, and the heat storage mode is sensible heat storage. The heat storage mode has low heating efficiency, the heat storage bricks are easy to pulverize, the service life of the electric heating wire is short, the residual heat is large, and the heat is difficult to be taken below 200 ℃. 3. Most of the traditional heat storage modes use an electric boiler as a heat source, and the efficiency is less than 1. 4. The heat storage temperature of the above heat storage mode is high, the heat loss is large, the heat storage mode cannot be combined with a heat pump, and an overlong energy releasing closed type air source heat pump energy storage system is provided aiming at the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art and provides an ultra-long energy-releasing closed air source heat pump energy storage system.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides an overlength can closed air source heat pump energy storage system of putting, is including directly supplying air source heat pump set, heat accumulation air source heat pump set, cold-storage water tank, heat storage water tank, directly supplying circulating water pump, energy storage system circulating water pump, first constant pressure moisturizing device, second constant pressure moisturizing device, directly supplying air source heat pump set has directly supplying circulating water pump through first tube coupling, directly supplying air source heat pump set has second constant pressure moisturizing device through the second tube coupling, heat accumulation air source heat pump set has connected gradually energy storage system circulating water pump, heat storage water tank, first constant pressure moisturizing device through the third pipeline, the third pipeline has the cold-storage water tank through the fourth tube coupling, heat accumulation air source heat pump set is provided with two sets ofly, two sets of heat accumulation air source heat pump set parallel connection.
Preferably, the first pipeline and the second pipeline are connected with the third pipeline through a fifth pipeline.
Compared with the prior art, the utility model has the beneficial effects that:
(1) the medium-low temperature solid phase change material energy storage device adopts latent heat energy storage, and the energy storage density is about 5-8 times of that of water.
(2) The medium-low temperature solid phase change material has good cycle stability, almost no heat attenuation after about 6000 cycles, constant-temperature heat release and stable heat release.
(3) The medium-low temperature solid phase change material is combined with the air source heat pump, the efficiency of the air source heat pump is about 2.5 times that of an electric boiler, and compared with the heat storage of the electric boiler, the system can save 150% of electricity charge under the condition of the same heat production quantity.
(4) The temperature of the running water of the system pipeline in winter ranges from 40 ℃ to 60 ℃, and the system is safe and reliable compared with the heat storage of water at 80-130 ℃ and the heat storage of heat storage bricks at 500-800 ℃.
(5) The medium-low temperature solid phase change material energy storage device is closed and has low pressure; and the heat storage tank in the high-temperature water heat storage system is a high-pressure container, and compared with the high-pressure container, the system is simpler and safer.
Drawings
Fig. 1 is a system block diagram of an ultra-long energy-releasing closed air source heat pump energy storage system provided by the utility model.
In the figure: the system comprises a direct-supply air source heat pump unit 1, a heat storage air source heat pump unit 2, a cold storage water tank 3, a heat storage water tank 4, a direct-supply system circulating water pump 5, an energy storage system circulating water pump 6, a first constant-pressure water supplementing device 7 and a second constant-pressure water supplementing device 8.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1, the overlength energy-releasing closed air source heat pump energy storage system comprises a direct-supply air source heat pump unit 1, a heat storage air source heat pump unit 2, a cold storage water tank 3, a heat storage water tank 4 and a direct-supply system circulating water pump 5, energy storage system circulating water pump 6, first constant pressure moisturizing device 7, second constant pressure moisturizing device 8, direct air source heat pump set 1 has direct supply system circulating water pump 5 through first tube coupling, direct air source heat pump set 1 has second constant pressure moisturizing device 8 through the second tube coupling, heat accumulation air source heat pump set 2 has connected gradually energy storage system circulating water pump 6 through the third pipeline, hot water storage tank 4, first constant pressure moisturizing device 7, the third pipeline has cold-storage water tank 3 through the fourth tube coupling, heat accumulation air source heat pump set 2 is provided with two sets ofly, two sets of heat accumulation air source heat pump set 2 parallel connection.
The first pipeline and the second pipeline are connected with the third pipeline through a fifth pipeline.
The working principle is as follows: the system can realize the cooling in summer and the heating in winter by utilizing the characteristics that the air source heat pump can refrigerate and heat; the characteristic that the phase change point of the medium-low temperature solid phase change material is in the water outlet range of the air source heat pump is utilized, summer cold accumulation and winter heat accumulation of the energy storage system can be achieved, the first constant-pressure water supplementing device 7 and the second constant-pressure water supplementing device 8 can supplement water for the system at constant pressure, and the stability of the operation of the system is guaranteed.
The system operation mode is as follows:
a direct supply system: the direct-supply air source heat pump unit 1 and the direct-supply system circulating water pump 5 run to directly supply energy, and the direct-supply system flexibly controls the starting time according to the energy supply requirement of a building.
An energy storage system: the heat storage air source heat pump unit 2 and the energy storage system circulating water pump 6 operate to store energy in the energy storage device, when the energy storage is full, the heat storage air source heat pump unit 2 and the energy storage system circulating water pump 6 stop, the energy storage system operates for 8 hours at night, and the energy storage device can be used for 16 hours in the daytime because the heat storage air source heat pump unit 2 is provided with two groups.
The energy release system comprises: the energy releasing water pump runs to supply energy, the energy in the energy storage device is exhausted, the energy releasing water pump stops, and the energy releasing system runs for 16 hours in the daytime.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (2)
1. An overlength energy-releasing closed air source heat pump energy storage system comprises a direct-supply air source heat pump unit (1), a heat-storage air source heat pump unit (2), a cold-storage water tank (3), a heat-storage water tank (4), a direct-supply system circulating water pump (5), an energy-storage system circulating water pump (6), a first constant-pressure water supplementing device (7) and a second constant-pressure water supplementing device (8), and is characterized in that the direct-supply air source heat pump unit (1) is connected with the direct-supply system circulating water pump (5) through a first pipeline, the direct-supply air source heat pump unit (1) is connected with the second constant-pressure water supplementing device (8) through a second pipeline, the heat-storage air source heat pump unit (2) is sequentially connected with the energy-storage system circulating water pump (6), the heat-storage water tank (4) and the first constant-pressure water supplementing device (7) through a third pipeline, the third pipeline is connected with the cold-storage water tank (3) through a fourth pipeline, the heat storage air source heat pump units (2) are arranged in two groups, and the two groups of heat storage air source heat pump units (2) are connected in parallel.
2. The ultra-long closed energy discharge air source heat pump energy storage system according to claim 1, wherein the first pipeline and the second pipeline are connected with the third pipeline through a fifth pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220267417.4U CN216790949U (en) | 2022-02-10 | 2022-02-10 | Ultra-long energy-releasing closed air source heat pump energy storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220267417.4U CN216790949U (en) | 2022-02-10 | 2022-02-10 | Ultra-long energy-releasing closed air source heat pump energy storage system |
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| Publication Number | Publication Date |
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| CN216790949U true CN216790949U (en) | 2022-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220267417.4U Active CN216790949U (en) | 2022-02-10 | 2022-02-10 | Ultra-long energy-releasing closed air source heat pump energy storage system |
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| Country | Link |
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| CN (1) | CN216790949U (en) |
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2022
- 2022-02-10 CN CN202220267417.4U patent/CN216790949U/en active Active
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