CN212618578U - Heat pump energy storage system - Google Patents
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- CN212618578U CN212618578U CN202021171853.9U CN202021171853U CN212618578U CN 212618578 U CN212618578 U CN 212618578U CN 202021171853 U CN202021171853 U CN 202021171853U CN 212618578 U CN212618578 U CN 212618578U
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Abstract
The utility model relates to a heat pump energy storage technical field discloses a heat pump energy storage system, it is including the first water pump of establishing ties in proper order, first heat pump group, energy storage tank and heating jar, be equipped with first import on the heating jar, first import is connected with energy storage tank, be equipped with the energy storage medium in the energy storage tank, still include first valve, second valve and third valve, first valve is parallelly connected with first heat pump group and is established ties with energy storage tank, the second valve is parallelly connected with energy storage tank and is established ties with first heat pump group, the third valve is parallelly connected with first water pump, the series pipeline of first heat pump group and energy storage tank. The utility model provides a heat pump energy storage system adopts the energy storage medium in the optional direct heating return water of first heat pump group or the energy storage jar, and heating efficiency risees by a wide margin, and the energy storage jar of addding can store the energy in the energy storage medium in the valley electricity period, and the energy of storing in the energy storage medium can heat the heat accumulation water in the heating jar in the peak electricity period.
Description
Technical Field
The utility model relates to a heat pump energy storage technical field especially relates to a heat pump energy storage system.
Background
The existing energy storage technology of the clean energy station generally adopts an electric heater to heat an energy storage medium for heat storage, but the heating efficiency of the electric heater is generally 95% -98%, the heating efficiency is lower, and the energy consumption is large.
SUMMERY OF THE UTILITY MODEL
Based on the above, an object of the utility model is to provide a heat pump energy storage system and heat pump energy storage method, wherein heat pump energy storage system has solved the problem that the inefficiency of heating and energy consumption are big that prior art exists.
In order to achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a heat pump energy storage system, includes first water pump, first heat pump group, energy storage tank and the heating jar of establishing ties in proper order, be equipped with first import on the heating jar, first import with the energy storage tank is connected, be equipped with the energy storage medium in the energy storage tank, still include first valve, second valve and third valve, first valve with first heat pump group is parallelly connected and with the energy storage tank is established ties, the second valve with the energy storage tank is parallelly connected and with first heat pump group establishes ties, the third valve with first water pump first heat pump group reaches the series pipeline of energy storage tank is parallelly connected.
As a preferred scheme of the heat pump energy storage system, the heat pump energy storage system further includes a fourth valve and a fifth valve, the fourth valve is located at the inlet end of the first water pump, the fifth valve is located at the outlet end of the energy storage tank, one end of the third valve is located between the fourth valve and the first heat pump set, and the other end of the third valve is located between the energy storage tank and the fifth valve.
As a preferred scheme of the heat pump energy storage system, the heat pump energy storage system further comprises a second water pump and a second heat pump set, and the second water pump and the second heat pump set are sequentially connected in series with the fourth valve, the first water pump, the first heat pump set, the energy storage tank, the fifth valve and the heating tank.
As a preferred scheme of the heat pump energy storage system, the heat pump energy storage system further includes a bypass valve, one end of the bypass valve is connected to the inlet end of the second water pump, the other end of the bypass valve is connected to the outlet end of the heating tank, and the bypass valve is configured to ensure that a difference between the pressure of the heating outlet water and the pressure of the heating return water is a preset pressure.
As a preferable scheme of the heat pump energy storage system, the heating tank is further provided with a second inlet and an outlet, the heat pump energy storage system further includes a sixth valve, the second inlet is communicated with a pipeline between the second heat pump set and the fourth valve, and the sixth valve is configured to control the outlet to be communicated with or disconnected from the second inlet.
As a preferable scheme of the heat pump energy storage system, the heat pump energy storage system further includes a first temperature sensor, and the first temperature sensor is disposed on the energy storage tank and configured to detect a temperature of the energy storage medium.
As a preferred scheme of the heat pump energy storage system, the heat pump energy storage system further includes a second temperature sensor, which is disposed between the outlet of the energy storage tank and the first inlet, and the second temperature sensor is configured to detect a temperature of the stored energy heating outlet water.
As a preferable scheme of the heat pump energy storage system, the heat pump energy storage system further includes a third temperature sensor disposed at an outlet of the heating tank, and the third temperature sensor is configured to detect a temperature of the heating outlet water.
In a preferred embodiment of the heat pump energy storage system, the first heat pump group includes at least one heat pump configured to heat heating return water or an energy storage medium in the energy storage tank.
The utility model has the advantages that: the utility model provides a heat pump energy storage system can improve the security of system, stability, reliability, can adopt multiple clean energy, the energy storage medium in the optional direct heating return water of first heat pump group or the energy storage tank, the energy consumption has been reduced, heating efficiency improves by a wide margin, reach energy saving and emission reduction effect, and the energy storage tank of setting up can store the energy in the energy storage medium in the millet electricity period, and the energy of storing in the energy storage medium can heat the heating return water in the peak electricity period, the realization peak clipping is filled in the millet, the millet is utilized in the improvement millet electricity.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a schematic diagram of a heat pump energy storage system according to an embodiment of the present invention.
In the figure:
11. a first water pump; 12. a second water pump; 21. a first heat pump group; 22. a second heat pump group; 3. an energy storage tank; 4. a heating tank; 51. a first valve; 52. a second valve; 53. a third valve; 54. a fourth valve; 55. a fifth valve; 56. a bypass valve; 57. a sixth valve; 61. a first temperature sensor; 62. a second temperature sensor; 63. a third temperature sensor.
Detailed Description
In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the system or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model discloses a heat pump energy storage system includes intelligent thermodynamic system, high-efficient energy storage system, efficiency management system, wisdom energy system, intelligent power system, intelligent electric power system, wisdom pipe network system, assembly basic system, introduces each system in detail below.
The intelligent thermodynamic system is a system device which takes cold and heat balance as a core, integrates various renewable energy sources such as geothermal energy, solar energy, air energy, water sources, urban sewage, industrial wastewater waste heat and the like, and intelligently controls the balance of various energy flows by applying new technologies such as cold and heat recovery, energy storage, heat balance, intelligent control and the like, so that the energy sources are recycled, and various demand functions such as refrigeration and heating, hot water, refrigeration and freezing, steam, power generation and the like are integrally met. The skid-mounted and intelligent air source heat pump, water source heat pump and other thermodynamic systems have the advantages that the efficiency is improved and the application range is expanded under the control of the intelligent control system.
The efficient energy storage system is composed of energy storage materials, a heating tank, an energy storage tank, a heat exchanger, a circulating pump and other equipment, and is supplied and installed in a whole set after being skid-mounted. The energy storage tank is one of core components of the efficient energy storage system and is used as an auxiliary heat source of a heating system to stabilize the energy supply of the system. The heating tank is one of the core components of the efficient energy storage system and is used as an auxiliary heat source of a heating system to stabilize the energy supply of the system.
The energy efficiency management system guides the operation strategy according to the distribution of parameters such as weather temperature, sunlight, humidity and the like, intelligently adjusts the operation tail end, reasonably distributes load and achieves the best effect by using the lowest operation cost. The system is composed of an information acquisition system, an energy efficiency analysis system and an adjusting and executing strategy, automatically operates in the operation process, is unattended, records and archives, and provides reliable and effective large database support for later-stage query management.
The intelligent energy system is a comprehensive energy optimization system which is based on the technology of the Internet of things, collects the operation condition and production data of field process equipment in real time, judges through system logic operation and monitors, adjusts and controls distributed energy stations in real time so as to achieve the goals of unattended operation and economic energy conservation, and is more intelligent. The temperature of real time monitoring user side, every heating area selects typical building, floor, resident family, installs temperature detecting system, combines outdoor thermodetector, through wisdom energy system calculation analysis user demand heat, adjusts the output of cold warm station, avoids appearing the condition of indoor overheated or subcooling, avoids the waste of the energy simultaneously and is used for the reduction of comfort level.
The intelligent power system provides circulating power for the heat pump energy storage system, intelligently adjusts the flow and the lift according to the operation condition, automatically supplements water, automatically switches for standby, is unattended, and maintains the safe and stable operation of the whole heat pump energy storage system. The intelligent power system is formed by assembling a heating circulating pump, a water replenishing tank, an electric cabinet, a water collecting and distributing device, a pipeline, a valve, an instrument, a dosing assembly, a box body bracket and the like.
The intelligent power system is formed by intelligent power elements and an intelligent management and control unit on the basis of a traditional power system. Through the combination of an intelligent power system and an energy efficiency management system, reasonable allocation of power energy is realized.
The intelligent pipe network system mainly comprises components such as pipelines, valves, connecting pieces and heat-insulating materials, and is flexibly arranged according to the positions of the components, neat and smooth in layout, medium resistance reduced as much as possible, and convenient for daily operation and maintenance. By adopting the pipeline modular design, the pipeline section can be prefabricated in a factory to reduce the field construction work amount, and the heat insulation material adopts a novel composite heat insulation material to reduce the heat loss of the system. The intelligent pipe network system utilizes the modeling design of special 3D factory design software, can design, make, debug, revise and store the pipeline alone, and this is convenient for produce respectively by different specialized enterprises. The structure, the size and the parameters of the interface part are standardized, and the exchange among modules is easy to realize, so that the modules meet the requirements of different products, the modules among transverse series products and longitudinal series products are convenient to be universal, and the modules among cross-series products are universal. The utility model discloses a wisdom pipe network system detects the confession of heating medium constantly and returns the condition, and the analysis pipeline runs out accidents such as overflow and drip leak, reduces the energy extravagant. The intelligent pipe network system can also self-check the energy loss condition of the pipeline and monitor the heat preservation and integrity of the pipeline.
The assembly foundation system is that a plurality of produced components are assembled into the foundation of the bearing equipment according to a specified technical specification according to a certain sequence. The assembly foundation system mainly comprises a reinforced concrete foundation, a steel structure foundation and a reinforced concrete foundation, and a proper equipment foundation is selected according to different geological conditions of a clean energy cold and warm station site. According to the specified technical specification, a plurality of prefabricated components are assembled into a foundation capable of bearing equipment according to a certain sequence. Its advantages are high building speed, less restriction to weather, saving labour and high quality of foundation.
The heat pump energy storage system of the utility model has the advantages of relative independence, strong universality and good interchangeability, and can design, manufacture, debug, modify and store each module relatively and independently, which is convenient for different specialized enterprises to produce respectively; the universality, namely the structure, the size and the parameter of the interface part of the module are standardized, and the exchange among the modules is easy to realize, so that the modules meet the requirements of different products; interchangeability is beneficial to realizing the module universality among horizontal series products and vertical series products.
The utility model discloses a heat pump energy storage system still has following advantage: the industrial mass production can be realized, and the system quality is reliable and stable; the installation is quick, and the construction period is greatly shortened; the requirements on the terrace are reduced, and the field civil construction amount is reduced; compact structure and small occupied area.
Specifically, this embodiment provides a heat pump energy storage system for heat pump energy storage, as shown in fig. 1, this heat pump energy storage system includes first water pump 11, first heat pump group 21, energy storage tank 3 and heating jar 4 that establish ties in proper order, wherein, be equipped with first import on the heating jar 4, first import is connected with energy storage tank 3, be equipped with energy storage medium in the energy storage tank 3, be equipped with the heating return water in the heating jar 4, first heat pump group 21 is high temperature heat pump group, this high temperature heat pump group includes at least one high temperature heat pump, high temperature heat pump is configured to heating return water or energy storage medium. Wherein, the connecting tube who adopts belongs to above-mentioned wisdom network management system, and first water pump 11 belongs to above-mentioned intelligent power system, and first heat pump group 21 belongs to above-mentioned intelligent thermodynamic system when heating the heating return water, and then belongs to high-efficient energy storage system when heating energy storage medium, and energy storage tank 3 and heating jar 4 all belong to above-mentioned high-efficient energy storage system, and first water pump 11 and first heat pump group 21 all are connected with the energy station, and the intelligent power system that this energy station belongs to provides the electric energy for above-mentioned consumer.
Further, as shown in fig. 1, the heat pump energy storage system of the present embodiment further includes a first valve 51, a second valve 52, a third valve 53, a fourth valve 54, and a fifth valve 55, wherein the first valve 51 is connected in parallel with the first heat pump set 21 and is connected in series with the energy storage tank 3, the second valve 52 is connected in parallel with the energy storage tank 3 and is connected in series with the first heat pump set 21, and the third valve 53 is connected in parallel with a series pipeline of the first water pump 11, the first heat pump set 21, and the energy storage tank 3. A fourth valve 54 is located at the inlet end of the first water pump 11, a fifth valve 55 is located at the outlet end of the energy storage tank 3, and a third valve 53 has one end located between the fourth valve 54 and the first heat pump group 21 and the other end located between the energy storage tank 3 and the fifth valve 55. Specifically, the first valve 51, the second valve 52, the third valve 53, the fourth valve 54, and the fifth valve 55 of the present embodiment are all solenoid valves, and all belong to the energy efficiency management system.
The heat pump energy storage system provided by this embodiment adopts the first heat pump set 21 to selectively and directly heat the heating return water or the energy storage medium in the energy storage tank 3, so that the heating efficiency is greatly increased, the additionally arranged energy storage tank 3 can store energy in the energy storage medium in the valley power period, and the energy stored in the energy storage medium can heat the heat storage water in the heating tank 4 in the peak power period.
The heat pump energy storage system of the embodiment further includes a second water pump 12 and a second heat pump group 22, as shown in fig. 1, the second water pump 12 can pump the heating return water discharged from the user end into the second heat pump group 22 to heat, and the second water pump 12 and the second heat pump group 22 can be connected in series with the fourth valve 54, the first water pump 11, the first heat pump group 21, the energy storage tank 3, the fifth valve 55, and the heating tank 4 in sequence. Specifically, the second water pump 12 and the second heat pump group 22 are both connected to an energy station for supplying power to the second water pump 12 and the second heat pump group 22. In particular, the second heat pump group 22 comprises at least one heat pump configured to heat the heating return water or the energy storage medium. The second water pump 12 belongs to the intelligent power system, and the second heat pump group 22 belongs to the intelligent thermal system.
Further, the heating tank 4 of the present embodiment is further provided with a second inlet and an outlet, and the second inlet is communicated with the pipeline between the second heat pump group 22 and the fourth valve 54.
It should be noted that, the heat pump energy storage system of this embodiment further includes a bypass valve 56 and a sixth valve 57, as shown in fig. 1, one end of the bypass valve 56 is connected to the inlet end of the second water pump 12, and the other end is connected to the outlet end of the heating tank 4, and the bypass valve 56 is configured to ensure that the difference between the pressure of the heating outlet water and the pressure of the heating return water is a preset pressure. The preset pressure value is selected according to a heating distance, a heating area, a circulation pump flow rate, and a head. Specifically, the bypass valve 56 of the present embodiment controls the opening of the bypass valve by detecting the pressure difference between the heating outlet water and the heating return water, so as to adjust the flow rate of the heating return water, and make the difference between the pressure of the heating outlet water and the pressure of the heating return water be the preset pressure.
Specifically, the sixth valve 57 of the present embodiment is an electromagnetic valve, the sixth valve 57 is configured to control the outlet to be connected to or disconnected from the second inlet, that is, when the sixth valve 57 is opened, the outlet is disconnected from the second inlet, that is, the heating return water directly flows out through the sixth valve 57 without entering from the second inlet, and when the sixth valve 57 is closed, the outlet is connected to the second inlet, that is, the heating return water flows out through the outlet of the heating tank 4. The bypass valve 56 and the sixth valve 57 both belong to an energy efficiency management system.
The heat pump energy storage system of the present embodiment further includes a first temperature sensor 61, a second temperature sensor 62, and a third temperature sensor 63, as shown in fig. 1, the first temperature sensor 61, the second temperature sensor 62, and the third temperature sensor 63 all belong to the energy efficiency management system. The first temperature sensor 61 is provided on the energy storage tank 3, and is configured to detect the temperature of the energy storage medium. The second temperature sensor 62 is disposed between the outlet of the energy storage tank 3 and the fifth valve 55, the third temperature sensor 63 is disposed at the outlet of the heating tank 4, and the third temperature sensor 63 is configured to detect the temperature of the heated heating return water.
In addition, the heat pump energy storage system of this embodiment still includes the platform of placing that is used for placing heating jar 4 and energy storage jar 3 respectively, and this platform of placing belongs to the heat pump energy storage system's of this embodiment assembly basic system.
Preferably, the heat pump energy storage system of the present embodiment further includes a PLC controller (not shown in the figure) electrically connected to the first heat pump group 21, the second heat pump group 22, the first water pump 11, the second water pump 12, the first valve 51, the second valve 52, the third valve 53, the fourth valve 54, the fifth valve 55, the bypass valve 56, the sixth valve 57, the first temperature sensor 61, the second temperature sensor 62, and the third temperature sensor 63, respectively, and the PLC controller belongs to the energy efficiency management system. In this embodiment, the PLC controller may be a centralized or distributed controller, for example, the PLC controller may be a centralized PLC controller, or may be formed by a plurality of distributed PLC controllers, and the PLC controller may run a control program to control the above structural components to implement their functions.
The heat pump energy storage system of this embodiment can realize energy storage heat accumulation operating mode, first heat pump heat supply operating mode, energy storage heat supply operating mode, second heat pump heat supply operating mode, and concrete step is as follows:
under the energy storage and heat storage working condition, in the valley power time period, the first valve 51, the second valve 52, the fourth valve 54 and the fifth valve 55 are closed simultaneously, the third valve 53 is opened simultaneously, at this time, the third valve 53, the first water pump 11, the first heat pump set 21 and the energy storage tank 3 form a series circuit, the first heat pump set 21 can heat the energy storage medium in the energy storage tank 3, the heat storage of the energy storage medium is realized, and when the temperature of the energy storage medium detected by the first temperature sensor 61 reaches the preset temperature of the energy storage medium, the power supply to the first heat pump set 21 is stopped.
In the first heat pump heat supply condition, in addition to storing heat to the energy storage tank 3 during the valley power period, the first heat pump set 21 can directly add extra heat to the heat pump energy storage system during the peak power period. And simultaneously closing the first valve 51 and the third valve 53, opening the second valve 52, the fourth valve 54 and the fifth valve 55, opening the first water pump 11 and the first heat pump group 21, separating the energy storage tank 3 at the moment, and directly injecting the high-temperature heating backwater heated by the first heat pump group 21 into the heating tank 4 through the suction partial flow of the first water pump 11 from the heating backwater part with the first heating outlet of the second heat pump group 22 and the lower temperature. The high-temperature heating return water is mixed with the heating return water heated by the second heat pump group 22 and having a lower temperature to form heating outlet water, and the heating outlet water reaches the water temperature required by the user terminal.
And under the working condition of energy storage and heat supply, simultaneously closing the second valve 52 and the third valve 53, opening the first valve 51, the fourth valve 54 and the fifth valve 55, separating the first heat pump from the group 21, closing the first heat pump group 21, starting the first water pump 11, sucking partial flow of the first-heated low-temperature heating backwater from the outlet of the second heat pump group 22 through the first water pump 11, heating the low-temperature heating backwater by the energy storage medium, injecting the heated low-temperature heating backwater into the heating tank 4, mixing the high-temperature heating backwater with the low-temperature heating backwater heated by the second heat pump group 22 to form heating outlet water, wherein the heating outlet water reaches the water temperature required by the end of a user.
And under the second heat pump heat supply working condition, in a valley power period or a small peak power period, the fourth valve 54 and the fifth valve 55 are cut off, the sixth valve 57 is fully opened, the first water pump 11 and the first heat pump unit 21 are opened, the second pump 12 and the second heat pump unit 22 are opened, and heat is directly supplied to the tail end of a user.
The energy storage and heat storage working condition, the first heat pump heat supply working condition, the energy storage and heat supply working condition and the second heat pump heat supply working condition are all required to enable the difference value between the pressure of heating water outlet and the pressure of heating water return to be preset pressure by adjusting the bypass valve 56.
The heat pump energy storage system of the embodiment can achieve the following purposes: in the off-peak electricity time period, part of heating backwater is heated by the energy storage tank 3, and part of heating backwater is heated by the second heat pump unit 21; during the off-peak period, the first heat pump group 21 directly supplements heat to the energy storage medium of the energy storage tank 3, thereby storing energy.
The heat pump energy storage system of the embodiment provides an energy supply and storage technical route for the prior art, the heat pump energy storage method of the embodiment provides an energy supply method with high energy efficiency for the prior art, and the energy supply method is different from the conventional electric heating equipment for heating and storing energy, and the energy efficiency of a high-temperature heat pump is higher. Specifically, the heat pump energy storage system of the embodiment uses the first heat pump group 21 and the second heat pump group 21 to store energy, and the ratio of the energy consumption to the energy consumption of the electric heating device is 0.2 to 0.5. Generally, the energy efficiency ratio (COP) of an electric heating device is about 0.95, i.e. 1kWh of heat is stored, and about 1.05kWh of electricity is consumed by using a conventional electric heating device. The high-temperature heat pump set of the embodiment has the advantages that the heating efficiency is reduced along with the reduction of the environmental temperature, the average energy efficiency ratio of the high-temperature heat pump set is up to 2.5 within the applicable temperature range, namely, 1kWh of heat is stored, and only 0.4kWh of electric energy needs to be consumed, so that the energy consumption is greatly reduced, the energy is saved, and the utilization rate of renewable energy is improved.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (9)
1. The utility model provides a heat pump energy storage system, its characterized in that, includes first water pump (11), first heat pump group (21), energy storage tank (3) and heating jar (4) of establishing ties in proper order, be equipped with first import on heating jar (4), first import with energy storage tank (3) are connected, be equipped with the energy storage medium in energy storage tank (3), still include first valve (51), second valve (52) and third valve (53), first valve (51) with first heat pump group (21) are parallelly connected and with energy storage tank (3) are established ties, second valve (52) with energy storage tank (3) are parallelly connected and with first heat pump group (21) are established ties, third valve (53) with first water pump (11), first heat pump group (21) and the series pipeline of energy storage tank (3) is parallelly connected.
2. The heat pump energy storage system of claim 1, further comprising a fourth valve (54) and a fifth valve (55), wherein the fourth valve (54) is located at an inlet end of the first water pump (11), the fifth valve (55) is located at an outlet end of the energy storage tank (3), and one end of the third valve (53) is located between the fourth valve (54) and the first heat pump group (21), and the other end is located between the energy storage tank (3) and the fifth valve (55).
3. The heat pump energy storage system according to claim 2, further comprising a second water pump (12) and a second heat pump group (22), wherein the second water pump (12) and the second heat pump group (22) are connected in series with the fourth valve (54), the first water pump (11), the first heat pump group (21), the energy storage tank (3), the fifth valve (55), and the heating tank (4) in this order.
4. The heat pump energy storage system according to claim 3, further comprising a bypass valve (56), wherein one end of the bypass valve (56) is connected to an inlet end of the second water pump (12), and the other end of the bypass valve (56) is connected to an outlet end of the heating tank (4), and the bypass valve (56) is configured to ensure that a difference between the pressure of the heating outlet water and the pressure of the heating return water is a preset pressure.
5. The heat pump energy storage system according to claim 3, wherein the heating tank (4) is further provided with a second inlet and an outlet, the heat pump energy storage system further comprises a sixth valve (57), the second inlet is communicated with a pipeline between the second heat pump set (22) and the fourth valve (54), and the sixth valve (57) is configured to control the outlet to be communicated with or disconnected from the second inlet.
6. The heat pump energy storage system according to any one of claims 1 to 5, further comprising a first temperature sensor (61), wherein the first temperature sensor (61) is provided on the energy storage tank (3) and is configured to detect a temperature of the energy storage medium.
7. The heat pump energy storage system according to any one of claims 1 to 5, further comprising a second temperature sensor (62) disposed between the outlet of the energy storage tank (3) and the first inlet, the second temperature sensor (62) being configured to detect a temperature of the heating water heated by the energy storage medium.
8. The heat pump energy storage system according to any one of claims 1 to 5, further comprising a third temperature sensor (63) provided at an outlet of the heating tank (4), wherein the third temperature sensor (63) is configured to heat a temperature of heating outlet water in the energy storage tank (3).
9. The heat pump energy storage system according to any of claims 1 to 5, wherein the first heat pump group (21) is a high temperature heat pump group comprising at least one high temperature heat pump configured to heat heating return water or an energy storage medium within the energy storage tank (3).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021171853.9U CN212618578U (en) | 2020-06-22 | 2020-06-22 | Heat pump energy storage system |
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| CN202021171853.9U CN212618578U (en) | 2020-06-22 | 2020-06-22 | Heat pump energy storage system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111609452A (en) * | 2020-06-22 | 2020-09-01 | 四川协成电力工程设计有限公司 | Heat pump energy storage system and heat pump energy storage method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111609452A (en) * | 2020-06-22 | 2020-09-01 | 四川协成电力工程设计有限公司 | Heat pump energy storage system and heat pump energy storage method |
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