CN218237627U - Solar energy and air source heat pump combined all-day hot water supply system - Google Patents

Solar energy and air source heat pump combined all-day hot water supply system Download PDF

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Publication number
CN218237627U
CN218237627U CN202221855605.5U CN202221855605U CN218237627U CN 218237627 U CN218237627 U CN 218237627U CN 202221855605 U CN202221855605 U CN 202221855605U CN 218237627 U CN218237627 U CN 218237627U
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hot water
solar
air source
pump
heat medium
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刘小华
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Shanghai Urban and Rural Architectural Design Institute Co Ltd
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Shanghai Urban and Rural Architectural Design Institute Co Ltd
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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
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • 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
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies

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Abstract

The application relates to a solar energy and air source heat pump unite system hot water supply system all day, include: the solar energy heat pump water heater comprises a solar heat collecting plate, a solar hot water tank, an air source heat pump, an air source hot water tank, an electric three-way valve, a solar high-temperature radiator, a first heat medium circulating pump, a second heat medium circulating pump, a hot water return pump and a controller; the solar heat collecting plate is connected with a solar hot water tank through a solar heat medium circulating pipeline, the air source heat pump is connected with an air source hot water tank through an air source heat medium circulating pipeline, a water inlet of the solar hot water tank is externally connected with a cold water supply pipe, a water outlet of the solar hot water tank is connected with a water inlet of the air source hot water tank, a water outlet of the air source hot water tank is externally connected with a hot water using point, and the water inlet is also connected with a hot water return pipe; the solar high-temperature radiator is connected with a solar heat medium circulating pipeline through an electric three-way valve. The solar energy can be fully utilized, and the energy-saving purpose is realized by utilizing the energy efficiency ratio of the air source heat pump.

Description

Solar energy and air source heat pump combined all-day hot water supply system
Technical Field
The application relates to the field of solar heat supply and air source heat pump heat supply, in particular to a solar and air source heat pump combined all-day hot water supply system.
Background
Solar energy is used as inexhaustible renewable clean energy currently, is more and more widely applied to engineering, and is also more and more valued by people in building energy conservation. However, the pure solar water heating system still has some obvious defects or shortcomings, the solar illumination time is short or the designed hot water consumption requirement or water temperature requirement cannot be met under the working conditions of rainy days and the like, and in order to ensure the stable supply of hot water, the engineering still needs to be provided with the traditional gas water heater or auxiliary heat sources such as electric heating auxiliary heat and the like. However, due to geographical position reasons and seasons, when the combined hot water supply system is adopted in some projects, in the actual use process, the continuous multi-day insufficient solar illumination or no sun in rainy days can occur, the water temperature of the hot water storage tank of the solar water heating system can hardly reach the use water temperature, a gas furnace or electric auxiliary heat is basically adopted to prepare hot water in the use process, in addition, due to the limitation of objective conditions, the gas supply in winter can be insufficient, the use of a gas water heater can be limited, the full play of the function can not be realized, the preparation of hot water is influenced, and the preparation of hot water by directly heating by using electric auxiliary heat also does not meet the requirements of energy conservation and environmental protection.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the embodiment of the application provides a solar energy and air source heat pump combined all-day hot water supply system, which can utilize part of solar energy to save energy, reduce pollution and meet the requirement of normal hot water.
In view of the above, according to an embodiment of the present application, there is provided a solar and air source heat pump combined daily hot water supply system, including: the system comprises a solar heat collecting plate, a solar hot water tank, an air source heat pump, an air source hot water tank, an electric three-way valve, a solar high-temperature radiator, a first heat medium circulating pump, a second heat medium circulating pump, a hot water return pump and a controller;
the solar heat collecting plate is connected with a solar hot water tank through a solar heat medium circulating pipeline, the air source heat pump is connected with an air source hot water tank through an air source heat medium circulating pipeline, a water inlet of the solar hot water tank is externally connected with a cold water supply pipe, a water outlet of the solar hot water tank is connected with a water inlet of the air source hot water tank, a water outlet of the air source hot water tank is externally connected with a hot water using point, and a water inlet of the air source hot water tank is also connected with a hot water return pipe;
the solar high-temperature radiator is connected with the solar heat medium circulating pipeline through an electric three-way valve and is used for preventing the solar heat collecting plate from overheating;
the first heat medium circulating pump is connected in series with the solar heat medium circulating pipeline, the second heat medium circulating pump is connected in series with the air source heat medium circulating pipeline, and the hot water return pump is connected in series with the hot water return pipe;
the first heat medium circulating pump, the second heat medium circulating pump, the hot water return pump, the electric three-way valve and the air source heat pump are respectively connected with the controller.
According to an embodiment of the present application, the full-time hot water supply system further includes: the temperature sensor comprises a first temperature sensor, a second temperature sensor, a third temperature sensor, a fourth temperature sensor and a fifth temperature sensor; the first temperature sensor is arranged at the outlet of the solar heat collecting plate, the second temperature sensor is arranged on the solar heat medium circulating pipeline, the third temperature sensor is arranged at the water outlet of the solar heat water tank, the fourth temperature sensor is arranged at the water outlet of the air source hot water tank, and the fifth temperature sensor is arranged on the hot water return pipe.
According to an embodiment of the present application, the full-time hot water supply system further includes: a first expansion tank, a second expansion tank, a third expansion tank; the first expansion tank is connected with the solar heat medium circulating pipeline, the second expansion tank is connected with the air source heat medium circulating pipeline, and the third expansion tank is connected with the hot water return pipe.
According to the embodiment of the application, first heat medium circulating pump, second heat medium circulating pump, hot water return water pump all include main and backup pump.
According to the embodiment of the application, the bottom parts of the solar hot water tank and the air source hot water tank are provided with drain valves for emptying during equipment maintenance.
According to the embodiment of the application, the solar heat collecting plate is a flat plate type solar heat collecting plate, and the solar hot water tank and the air source hot water tank are finished product closed hot water tanks.
According to the embodiment of the application, the solar heat medium circulating pipeline is provided with a solar heat medium filling opening, and the air source heat medium circulating pipeline is provided with a heat pump heat medium filling opening.
According to the embodiment of the application, the solar heat medium circulating pipeline and the air source heat medium circulating pipeline are filled with the anti-freezing liquid with the anti-freezing capacity of not lower than minus 10 ℃ for anti-freezing protection.
According to an embodiment of the application, the controller is a PLC controller.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) The utility model relates to a solar energy and air source heat pump jointly make hot water supply system all day adopt air source heat pump to assist the heat, increase air source hot-water cylinder in the system, air source hot-water cylinder establishes ties after solar hot-water cylinder, solar panel collects behind the heat, supply to solar hot-water cylinder, the cold water obtains the heating through solar heat media circulating line in the water pitcher, water supplies to air source hot-water cylinder after the heating, if the temperature reaches the use temperature and can directly supply to hot water consumption point, if the temperature is not enough, control system starts air source heat pump, supplement by air source heat pump and heat to the use temperature after, supply to hot water consumption point.
(2) The utility model relates to a solar energy and air source heat pump unite system hot water supply system all day, not only solar energy obtains make full use of, utilizes "energy efficiency ratio" of air source heat pump to realize the purpose of energy saving moreover.
(3) The utility model relates to a solar energy and air source heat pump combined all-day hot water supply system, which is a closed system, automatically supplies water through the pressure of a cold water supply pipe, has the same source of cold and hot water, and ensures the comfort level of water;
(4) The utility model relates to a solar energy and air source heat pump combined total-day hot water supply system, which has strong operability, not only fully utilizes solar energy, but also adopts the air source heat pump to assist heating to meet the requirement of water temperature;
(5) The utility model relates to a solar energy and air source heat pump combined whole-day hot water supply system, a hot water return system can carry out constant temperature/constant time hot water circulating return control, and the system is flexible and changeable and has strong practicability;
(6) The utility model relates to a solar energy and air source heat pump combined total-day hot water supply system, which is provided with a solar energy anti-overheating system, thereby improving the safety of the system;
(7) The utility model relates to a solar energy and air source heat pump combined hot water supply system for making all day, for the area where peak valley electricity price is implemented, when the electricity price is low in the evening, the running cost can be saved by using the air source heat pump to prepare hot water;
(8) The utility model relates to a solar energy and air source heat pump unite system hot water supply system all day, simple structure, design benefit, the effect is showing, easily processing and assembly, and is with low costs, is fit for promoting on a large scale.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description only relate to some embodiments of the present application and are not limiting on the present application.
Fig. 1 is a schematic diagram of a solar energy and air source heat pump combined daily hot water supply system.
Description of reference numerals:
the solar heat pump water heater comprises a solar heat collecting plate 1, a solar heat water tank 2, an air source heat pump 3, an air source heat water tank 4, an electric three-way valve 5, a solar high-temperature radiator 7, a first heat medium circulating pump 8, a second heat medium circulating pump 9, a hot water return pump 10, a controller 11, a first temperature sensor 12, a second temperature sensor 13, a third temperature sensor 14, a fourth temperature sensor 15, a fifth temperature sensor 16, a first expansion tank 17, a second expansion tank 18, a third expansion tank 19, a blow-down valve 20, a solar heat medium filling port 21 and a heat pump heat medium filling port.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings of the embodiments of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the application without inventive effort, are within the scope of protection of the application.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of "first," "second," and similar terms in the description and claims of this application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one.
Embodiments of the present application are described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a solar energy and air source heat pump combined daily hot water supply system.
Referring to fig. 1, the solar and air source heat pump combined daily hot water supply system includes: the solar energy water heater comprises a solar heat collecting plate 1, a solar hot water tank 2, an air source heat pump 3, an air source hot water tank 4, an electric three-way valve 5, a solar high-temperature radiator 6, a first heat medium circulating pump 7, a second heat medium circulating pump 8, a hot water return pump 9 and a controller 10.
Wherein, solar panel 1 is connected with solar hot water pot 2 through solar heat medium circulating line, and air source heat pump 3 is connected with air source hot-water cylinder 4 through air source heat medium circulating line, and the external cold water delivery pipe of the water inlet of solar hot water pot 2, the water inlet of air source hot-water cylinder 4 is connected to the delivery port of solar hot water pot 2, and the external hot water of delivery port of air source hot-water cylinder 4 is with the water spot to the water inlet of air source hot-water cylinder 4 still is connected with hot water return pipe. The solar high-temperature radiator 6 is connected with a solar heat medium circulating pipeline through the electric three-way valve 5 and can be used for preventing the solar heat collecting plate 1 from overheating. First heat medium circulating pump 7 establishes ties in solar heat medium circulating pipe, and second heat medium circulating pump 8 establishes ties in air source heat medium circulating pipe, and hot water return pump 9 establishes ties in the hot water wet return, and first heat medium circulating pump 7, second heat medium circulating pump 8, hot water return pump 9, electronic three-way valve 5 and air source heat pump 3 are connected with controller 10 respectively.
In an embodiment of the present application, the solar energy and air source heat pump combined full-time hot water supply system may further include: a first temperature sensor 11, a second temperature sensor 12, a third temperature sensor 13, a fourth temperature sensor 14, a fifth temperature sensor 15. The first temperature sensor 11 is arranged at the outlet of the solar heat collecting plate 1, the second temperature sensor 12 is arranged on a solar heat medium circulating pipeline, the third temperature sensor 13 is arranged at the outlet of the solar heat water tank 2, the fourth temperature sensor 14 is arranged at the outlet of the air source hot water tank 4, and the fifth temperature sensor 15 is arranged on a hot water return pipe.
Further, the first temperature sensor 11, the second temperature sensor 12, the third temperature sensor 13, the fourth temperature sensor 14, and the fifth temperature sensor 15 may be connected to the controller 10 by a wire harness.
The first temperature sensor 11 can monitor the temperature T1 of a heating medium at the outlet of the solar heat collecting plate 1, the third temperature sensor 13 monitors the temperature T3 of water in the solar water heating tank 2, when the temperature T1-T3 is more than or equal to 10 ℃, the first heating medium circulating pump 7 is started to operate, and the solar heat collecting plate 1 circularly supplies heat to the solar water heating tank 2 through a heat exchange pipeline; and when the temperature T1-T3 is less than or equal to 2 ℃, the first heat medium circulating pump 7 is delayed for a preset time and stops running, and the solar heat collecting plate 1 stops supplying heat to the solar hot water tank 2. The first heat medium circulating pump 7 stops running with a delay, so that the high-temperature heat medium in the solar heat medium circulating pipeline can be fully utilized, and the preset time length is adjustable, such as 30 seconds.
The fourth temperature sensor 14 can monitor the water temperature T4 in the air source hot water tank 4, when the temperature T4 is less than or equal to 55 ℃, the air source heat pump 3 is automatically started, the second heating medium circulating pump 8 is started to operate, and secondary auxiliary heating is carried out on the water in the air source hot water tank 4; when T4=60 ℃, the air source heat pump 3 is automatically closed, and the second heat medium circulating pump 8 is stopped after delaying for a preset time. The delayed stop of the second heat medium circulating pump 8 enables the high-temperature heat medium in the air source heat medium circulating pipeline to be fully utilized, and the preset time length is adjustable, such as 30 seconds. The air-source heat pump 3 is used as auxiliary heating.
The fifth temperature sensor 15 can monitor the water temperature T5 of the hot water return pipeline, when the temperature T5 is less than 50 ℃, the hot water return pump 9 is automatically started, and when the temperature T5 is more than 55 ℃, the hot water return pump 9 is automatically closed. The controller 13 can be used for controlling the constant temperature/constant time hot water circulating water return of the hot water return system.
Further, a second temperature sensor 12 monitors the temperature T2 of the heating medium delivered to the solar hot water tank 2 by the solar heat collecting plate 1, when the temperature T2 is greater than 95 ℃, a valve port facing the solar high-temperature radiator 6 and a valve port facing the solar heat collecting plate 1 in the electric three-way valve 5 are opened, the valve port facing the solar hot water tank 2 is closed, and the solar high-temperature radiator 6 and the first heating medium circulating pump 7 are automatically started to perform heat dissipation circulation; when T2 is less than 80 ℃, a valve port facing the solar hot water tank 2 and a valve port facing the solar heat collecting plate 1 in the electric three-way valve 5 are opened, a valve port facing the solar high-temperature radiator 6 is closed, and the solar high-temperature radiator 6 is closed; when T1>110 ℃, the system is overheated and alarmed, so overheating can be effectively prevented.
In this embodiment, the solar energy and air source heat pump combined all-day hot water supply system may further include: a first expansion tank 16, a second expansion tank 17, a third expansion tank 18. Wherein, the first expansion tank 16 is connected with a solar heat medium circulating pipeline, the second expansion tank 17 is connected with an air source heat medium circulating pipeline, and the third expansion tank 18 is connected with a hot water return pipe.
In the embodiment of the present application, the first heat medium circulating pump 7, the second heat medium circulating pump 8, and the hot water return pump 9 may each include a main pump and a backup pump, as shown in fig. 1.
In the embodiment of the application, the bottom parts of the solar hot water tank 2 and the air source hot water tank 4 are provided with the drain valve 19 for emptying during equipment maintenance.
In the embodiment of the application, the solar heat collecting plate 1 can be a flat plate type solar heat collecting plate, and the solar water heating tank 2 and the air source hot water tank 4 can be finished product closed hot water tanks.
In the embodiment of the application, a solar heat medium filling opening 20 can be formed in the solar heat medium circulation pipeline, and a heat pump heat medium filling opening 21 can be formed in the air source heat medium circulation pipeline.
In the embodiment of the application, the solar heat medium circulating pipeline and the air source heat medium circulating pipeline can be filled with anti-freezing liquid with anti-freezing capacity not lower than minus 10 ℃ for anti-freezing protection.
In the embodiment of the present application, the controller 10 may be a PLC controller.
The working principle of the solar energy and air source heat pump combined all-day hot water supply system is as follows: when the sunlight is well illuminated, the solar heat collecting plate 1 absorbs the heat of the sunlight, the heating temperature of the solar heat medium is increased, the high-temperature heat medium is conveyed to the solar heat water tank 2 through the solar heat medium circulating pipeline by the first heat medium circulating pump 7, the water in the solar heat water tank 2 is continuously heated, the heated water is conveyed to the air source hot water tank 4 through the pipeline, and if the water temperature meets the use temperature requirement, the water is directly supplied to a hot water point from the air source hot water tank 4; if the temperature of the water does not reach the requirement of the use temperature, the air source heat pump 3 is used for further heating the water to the use water temperature and then supplying the water to the hot water using point.
Compared with the prior art, the method can achieve at least the following beneficial effects:
(1) The utility model relates to a solar energy and air source heat pump jointly make hot water supply system all day adopt air source heat pump 3 to assist the heat, increase air source hot-water cylinder 4 in the system, air source hot-water cylinder 4 establishes ties after solar water heating tank 2, solar panel 1 collects behind the heat, supply to solar water heating tank 2, cold water obtains the heating through solar heat media circulating line in the water pitcher, water supplies to air source hot-water cylinder 4 after the heating, if the temperature reaches service temperature and can directly supply to hot water consumption point, if the temperature is not enough, control system starts air source heat pump 3, supply to hot water consumption point after reaching service temperature by 3 supplementary heats of air source heat pump.
(2) The utility model relates to a solar energy and air source heat pump unite system for supplying hot water all day, not only solar energy obtains make full use of, utilizes "energy efficiency ratio" of air source heat pump 3 to realize the purpose of energy saving moreover.
(3) The utility model relates to a solar energy and air source heat pump combined all-day hot water supply system, which is a closed system, automatically supplies water through the pressure of a cold water supply pipe, has the same source of cold and hot water, and ensures the comfort level of water;
(4) The utility model relates to a solar energy and air source heat pump combined total-day hot water supply system, which has strong operability, not only fully utilizes solar energy, but also adopts the air source heat pump 3 to assist in heating and meets the requirement of water temperature;
(5) The utility model relates to a solar energy and air source heat pump combined whole-day hot water supply system, a hot water return system can carry out constant temperature/constant time hot water circulating return control, and the system is flexible and changeable and has strong practicability;
(6) The utility model relates to a solar energy and air source heat pump combined total-day hot water supply system, which is provided with a solar energy anti-overheating system, thereby improving the safety of the system;
(7) The utility model relates to a solar energy and air source heat pump combined whole-day hot water supply system, which can save the operation cost by utilizing the air source heat pump 3 to prepare hot water in the region where peak valley electricity price is implemented and in the night time when the electricity price is low;
(8) The utility model relates to a solar energy and air source heat pump unite system hot water supply system all day, simple structure, design benefit, the effect is showing, easily processing and assembly, and is with low costs, is fit for promoting on a large scale.
The above description is only exemplary of the present application and is not intended to limit the scope of the present application, which is defined by the appended claims.

Claims (9)

1. A solar and air source heat pump combined total-day hot water supply system, comprising: the solar energy heat pump water heater comprises a solar heat collecting plate, a solar hot water tank, an air source heat pump, an air source hot water tank, an electric three-way valve, a solar high-temperature radiator, a first heat medium circulating pump, a second heat medium circulating pump, a hot water return pump and a controller;
the solar heat collecting plate is connected with a solar hot water tank through a solar heat medium circulating pipeline, the air source heat pump is connected with an air source hot water tank through an air source heat medium circulating pipeline, a water inlet of the solar hot water tank is externally connected with a cold water supply pipe, a water outlet of the solar hot water tank is connected with a water inlet of the air source hot water tank, a water outlet of the air source hot water tank is externally connected with a hot water using point, and a water inlet of the air source hot water tank is also connected with a hot water return pipe;
the solar high-temperature radiator is connected with the solar heat medium circulating pipeline through an electric three-way valve and is used for preventing the solar heat collecting plate from overheating;
the first heat medium circulating pump is connected in series with the solar heat medium circulating pipeline, the second heat medium circulating pump is connected in series with the air source heat medium circulating pipeline, and the hot water return pump is connected in series with the hot water return pipe;
first heat medium circulating pump, second heat medium circulating pump, hot water return water pump, electronic three-way valve and air source heat pump respectively with the controller is connected.
2. The solar-air source heat pump combined whole-day hot water supply system of claim 1, further comprising: the temperature sensor comprises a first temperature sensor, a second temperature sensor, a third temperature sensor, a fourth temperature sensor and a fifth temperature sensor;
the solar water heater comprises a solar heat collecting plate, a solar heat medium circulating pipeline, a first temperature sensor, a second temperature sensor, a third temperature sensor, a fourth temperature sensor, a fifth temperature sensor and a hot water return pipe, wherein the first temperature sensor is arranged at an outlet of the solar heat collecting plate, the second temperature sensor is arranged in the solar heat medium circulating pipeline, the third temperature sensor is arranged at a water outlet of the solar heat water tank, the fourth temperature sensor is arranged at a water outlet of an air source hot water tank, and the fifth temperature sensor is arranged on the hot water return pipe.
3. The solar-air source heat pump combined whole-day hot water supply system of claim 1, further comprising: a first expansion tank, a second expansion tank, a third expansion tank;
the first expansion tank is connected with the solar heat medium circulating pipeline, the second expansion tank is connected with the air source heat medium circulating pipeline, and the third expansion tank is connected with the hot water return pipe.
4. The solar-air source heat pump combined full-time hot water supply system as claimed in claim 1, wherein the first heating medium circulating pump, the second heating medium circulating pump and the hot water return pump each comprise a main and a backup pump.
5. The solar and air source heat pump combined full-time heating water supply system as claimed in claim 1, wherein the bottom of the solar hot water tank and the air source hot water tank are provided with blowoff valves for emptying during equipment maintenance.
6. The system according to claim 1, wherein the solar collector panel is a flat plate solar collector panel, and the solar hot water tank and the air source hot water tank are closed finished hot water tanks.
7. The system for supplying hot water for daily use by combining solar energy and an air source heat pump as claimed in claim 1, wherein the solar heat medium circulation pipeline is provided with a solar heat medium filling opening, and the air source heat medium circulation pipeline is provided with a heat pump heat medium filling opening.
8. The solar energy and air source heat pump combined daily hot water supply system as claimed in claim 1, wherein the solar heat medium circulation pipeline and the air source heat medium circulation pipeline are filled with an antifreeze solution with antifreeze capacity not lower than minus 10 ℃ for antifreeze protection.
9. The solar-air source heat pump combined total day hot water supply system of claim 1, wherein the controller is a PLC controller.
CN202221855605.5U 2022-07-19 2022-07-19 Solar energy and air source heat pump combined all-day hot water supply system Active CN218237627U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221855605.5U CN218237627U (en) 2022-07-19 2022-07-19 Solar energy and air source heat pump combined all-day hot water supply system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221855605.5U CN218237627U (en) 2022-07-19 2022-07-19 Solar energy and air source heat pump combined all-day hot water supply system

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Publication Number Publication Date
CN218237627U true CN218237627U (en) 2023-01-06

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