CN218915201U - Energy storage type solar direct-drive heat pump system - Google Patents
Energy storage type solar direct-drive heat pump system Download PDFInfo
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- CN218915201U CN218915201U CN202222862440.0U CN202222862440U CN218915201U CN 218915201 U CN218915201 U CN 218915201U CN 202222862440 U CN202222862440 U CN 202222862440U CN 218915201 U CN218915201 U CN 218915201U
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Abstract
The utility model discloses an energy storage type solar direct-drive heat pump system, which comprises a solar photovoltaic power generation assembly, wherein the solar photovoltaic power generation assembly supplies power to an outdoor heat pump system through a control circuit, an outlet pipeline of the outdoor heat pump system is connected with a first interface of an energy storage water tank, an inlet pipeline of the outdoor heat pump system is connected with a second interface of the energy storage water tank, a third interface of the energy storage water tank is connected with an outlet pipeline of the energy storage water tank, the outlet pipeline of the energy storage water tank is respectively connected with an inlet of a circulating pump and a connecting pipeline of a temperature control regulating valve, an outlet of the circulating pump is respectively connected with an indoor air conditioner water inlet pipeline and a floor heating coil water inlet pipeline, an indoor air conditioner water outlet pipeline and a floor heating coil water outlet pipeline are both connected with a first interface of the temperature control regulating valve, a second interface of the temperature control regulating valve is connected with a water return pipeline of the energy storage water tank, and a fourth interface of the energy storage water tank is connected with a water return pipeline of the energy storage water tank; the temperature control regulating valve connecting pipeline is connected with a third interface of the temperature control regulating valve.
Description
Technical Field
The utility model relates to the technical field of energy storage systems, in particular to an energy storage type solar direct-drive heat pump system.
Background
The solar photovoltaic heat pump system is a product combining a solar photovoltaic power generation technology and a heat pump technology, utilizes photovoltaic power generation to drive the heat pump system with energy-saving advantage, can refrigerate when preparing hot water, can be used for heating and domestic hot water, has multiple purposes, saves energy sources, can replace the consumption of conventional fossil fuels, and has great economic and social significance for saving energy, reducing emission, protecting environment, improving the life quality of residents and promoting the development of the photovoltaic industry.
Most of existing solar photovoltaic power generation systems use storage batteries. Such as:
CN202111094769.0 discloses a ground source heat pump coupling system based on photovoltaic photo-thermal, which comprises a PV/T heat collector, a photovoltaic controller, a storage battery, a photovoltaic inverter, an ac power distribution cabinet, a ground source heat pump unit and a machine room water pump. The PV/T heat collector converts solar energy into electric energy, and supplies power to the machine room water pump and the ground source heat pump unit through the photovoltaic controller, the inverter and the alternating current power distribution cabinet, when the electric quantity is rich, the electric energy can be stored in the storage battery or sold to the public power grid, and when the electric quantity is insufficient, the electric energy can be supplemented by the storage battery and the public power grid; on the other hand, after the heat converted by the PV/T heat collector is transferred to the heat storage water tank, the heat is used for supplying hot water through the first heat exchanger, and when the heat is rich, the heat can be stored in the underground heat storage pipe through the second heat exchanger and used for heating of the ground source heat pump in winter, and when the heat is insufficient, the heat can be supplemented by the ground source heat pump.
CN201720723670.5 discloses a control system for supplying power to a ground source heat pump system by utilizing solar energy photovoltaic, which comprises a controller, a solar energy photovoltaic system, a ground source heat pump system, a domestic hot water system and an air conditioner terminal system, wherein the solar energy photovoltaic system comprises a photovoltaic module, a storage battery pack and an inverter; the ground source heat pump system comprises a ground source heat pump unit, a ground buried pipe system and a ground source side water pump; the domestic hot water system comprises a domestic water tank, a hot water pipeline and a domestic hot water pump; the air conditioner terminal system comprises indoor terminal equipment, an air conditioner water supply pipe, an air conditioner water return pipe and an air conditioner circulating pump. The system utilizes solar energy photovoltaic to supply power to the control system of the ground source heat pump system, uses the power supply of the photovoltaic module and the storage battery pack as a main part, and uses the power supply of the public power grid as an auxiliary part, and utilizes the controller to effectively switch the power supply according to different states of solar illumination intensity.
But in use it has been found that there are a number of potential problems from a long term use of the batteries present in a photovoltaic heat pump system.
First is the life problem. The storage capacity is greatly compromised after 2-3 years as the capacity of the battery shrinks over time. In order to ensure stability, many photovoltaic power generation users have to replace the complete set of storage batteries every 2 years, which clearly increases the maintenance cost greatly.
And secondly, the problem of environmental protection. For example, lead-acid storage batteries mainly comprise lead polar plates and sulfuric acid solution, but lead is a highly toxic heavy metal, sulfuric acid is highly corrosive, and both materials are easy to cause great pollution to the environment in the production and scrapping processes.
Third, the performance of lead acid batteries is greatly affected by ambient temperature. The low temperature reduces the capacity of the storage battery, reduces the charge acceptance, and reduces the number of charge and discharge cycles. The standard operating temperature of the battery is 25 ℃, at which temperature the performance is optimal and the lifetime is longest. When the temperature is lower than 25 ℃, the capacity of the storage battery is reduced by half every 10 ℃ when the temperature is reduced; at temperatures above 25 c, the battery life is reduced by 50% at a constant float charge pressure for every 10 c increase in temperature. For a photovoltaic heat pump which needs to work in winter and summer and is often placed outdoors, the change of the outdoor environment temperature seriously affects the performance of a storage battery, thereby greatly reducing the long-term reliability of the system.
Fourth, since the energy of the battery is stored in the battery, the cruising ability is proportional to the volume and mass. When the capacity of the system is large, the volume and mass of the battery after use will be unacceptable. It can be seen that the use of batteries in large photovoltaic heat pump systems is impractical.
Fifth, in the photovoltaic power generation system having the secondary battery, a DC-DC converter (charge controller) is also necessary, which plays a role of buffering between the solar panel and the load to regulate the output power of the photovoltaic panel and charge the secondary battery according to a certain charge control strategy. The presence of a DC-DC converter may increase photovoltaic efficiency, but the DC-DC converter itself also has some efficiency loss and increases the cost and complexity of the system.
According to the analysis, if the storage battery is arranged in the photovoltaic heat pump system, the environment is not protected, the cost is high, the difficulty of system design and maintenance is increased, the life cycle of the whole system is reduced, and the electric efficiency of the whole system is possibly reduced due to excessive power supply conversion times.
Therefore, designing and developing an energy storage type solar direct-drive heat pump system without using a storage battery becomes one of the problems to be solved in the art.
Disclosure of Invention
The utility model aims to provide an energy storage type solar direct-drive heat pump system.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the energy storage type solar direct-drive heat pump system comprises a solar photovoltaic power generation assembly, wherein the solar photovoltaic power generation assembly supplies power to an outdoor heat pump system through a control circuit, an outlet pipeline of the outdoor heat pump system is connected with a first interface of an energy storage water tank, an inlet pipeline of the outdoor heat pump system is connected with a second interface of the energy storage water tank, a third interface of the energy storage water tank is connected with an outlet pipeline of the energy storage water tank, the outlet pipeline of the energy storage water tank is respectively connected with an inlet of a circulating pump and a connecting pipeline of a temperature control regulating valve, an outlet of the circulating pump is respectively connected with an indoor air conditioner water inlet pipeline and a floor heating coil water inlet pipeline, the indoor air conditioner water outlet pipeline and the floor heating coil water outlet pipeline are both connected with the first interface of the temperature control regulating valve, the second interface of the temperature control regulating valve is connected with a water return pipeline of the energy storage water tank, and the water return pipeline of the energy storage water tank is connected with a fourth interface of the energy storage water tank; and the temperature control regulating valve connecting pipeline is connected with a third interface of the temperature control regulating valve.
The control circuit is electrically connected with the temperature control regulating valve, the indoor air conditioner, the temperature measuring device of the energy storage water tank and the circulating pump.
Valves are arranged on the water outlet pipeline of the energy storage water tank, the water outlet pipeline of the indoor air conditioner and the water outlet pipeline of the floor heating coil pipe.
In summer, the outdoor heat pump system continuously circulates water in the energy storage water tank to refrigerate through an outlet pipeline of the outdoor heat pump system and an inlet pipeline of the outdoor heat pump system; and in winter, the outdoor heat pump system heats the water in the energy storage water tank continuously and circularly through an outlet pipeline of the outdoor heat pump system and an inlet pipeline of the outdoor heat pump system.
When the solar radiation intensity is weaker (such as at night or in overcast and rainy days), the generated energy of the solar photovoltaic power generation assembly is small, and the control circuit automatically adjusts the power of the heat pump compressor of the outdoor heat pump system to balance; the control circuit is connected with a mains supply line, and is supplemented by auxiliary mains supply when the power supply is insufficient in night or overcast and rainy days.
When water in the energy storage water tank is used for cooling an indoor environment, water in an indoor air conditioner and cold water in the energy storage water tank are subjected to mixed circulation to keep the indoor environment temperature, a third interface and a fourth interface of the energy storage water tank are opened, valves of a water outlet pipeline of the energy storage water tank and a water outlet pipeline of the indoor air conditioner are opened, a valve of a water outlet pipeline of a floor heating coil is closed, a first interface, a second interface and a third interface of a temperature control regulating valve are opened, and the flow ratio entering the temperature control regulating valve connecting pipeline and a circulating pump is controlled by regulating the opening of the three interfaces and the opening of the valve on the water outlet pipeline of the energy storage water tank so as to control the indoor temperature; the circulating pump is started, a part of water in the energy storage water tank flows back to the energy storage water tank through the first interface and the second interface of the energy storage water tank water outlet pipeline, the circulating pump, the indoor air conditioner water inlet pipeline, the indoor air conditioner water outlet pipeline and the temperature control regulating valve in sequence, and the other part of water flows back to the energy storage water tank through the third interface and the second interface of the energy storage water tank water outlet pipeline and the temperature control regulating valve in sequence.
When the water in the energy storage water tank is used for supplying heat to the indoor environment, the water in the floor heating coil pipe and the hot water in the energy storage water tank are mixed and circulated so as to keep the indoor environment temperature; the third interface and the fourth interface of the energy storage water tank are opened, valves of a water outlet pipeline of the energy storage water tank and a water outlet pipeline of the floor heating coil are opened, valves of a water outlet pipeline of the indoor air conditioner are closed, the first interface, the second interface and the third interface of the temperature control regulating valve are opened, and the flow ratio entering the connecting pipeline of the temperature control regulating valve and the circulating pump is controlled by regulating the opening of the three interfaces and the opening of the valves on the water outlet pipeline of the energy storage water tank so as to control the indoor temperature; the circulating pump is started, a part of water in the energy storage water tank flows back to the energy storage water tank through the water outlet pipeline of the energy storage water tank, the circulating pump, the water inlet pipeline of the floor heating coil, the water outlet pipeline of the floor heating coil, the first interface and the second interface of the temperature control regulating valve and the water return pipeline of the energy storage water tank in sequence, and the other part of water flows back to the energy storage water tank through the water outlet pipeline of the energy storage water tank, the third interface and the second interface of the temperature control regulating valve and the water return pipeline of the energy storage water tank in sequence.
When only water in the indoor air conditioner is adopted for circulation to keep the indoor environment temperature, the third interface and the fourth interface of the energy storage water tank are closed, the valve of the water outlet pipeline of the indoor air conditioner is opened, the valves of the water outlet pipeline of the energy storage water tank and the water outlet pipeline of the floor heating coil are closed, the first interface and the third interface of the temperature control regulating valve are opened, and the second interface of the temperature control regulating valve is closed; the circulating pump is started, and water in the indoor air conditioner flows back to the indoor air conditioner through the water outlet pipeline of the indoor air conditioner, the first interface and the third interface of the temperature control regulating valve, the connecting pipeline of the temperature control regulating valve, the circulating pump and the water inlet pipeline of the indoor air conditioner in sequence.
When only water in the floor heating coil is adopted for circulation to keep the indoor environment temperature, the third interface and the fourth interface of the energy storage water tank are closed, the valve of the water outlet pipeline of the floor heating coil is opened, the valves of the water outlet pipeline of the energy storage water tank and the water outlet pipeline of the indoor air conditioner are closed, the first interface and the third interface of the temperature control regulating valve are opened, and the second interface of the temperature control regulating valve is closed; the circulating pump is started, and water in the floor heating coil flows back to the floor heating coil through the water outlet pipeline of the floor heating coil, the first interface and the third interface of the temperature control regulating valve, the connecting pipeline of the temperature control regulating valve, the circulating pump and the water inlet pipeline of the floor heating coil in sequence.
Compared with the prior art, the utility model has the outstanding effects that:
(1) The energy storage type solar direct-drive heat pump system utilizes the solar energy and the heat pump system to refrigerate and heat, stores energy into the energy storage water tank, obtains energy storage medium water which can independently and continuously work and has low cost, and achieves the purposes of economy, environmental protection and low operation cost.
(2) Under the condition of illumination, the system can basically realize independent operation without external energy, the operation process is pollution-free, the operation with zero carbon emission is realized, and the whole operation period has no consumption of other consumables except the radiation of sunlight.
(3) The system adopts the energy storage water tank to replace a storage battery, uses water as a storage medium of energy, and has low cost, safety and environmental protection.
The energy storage type solar direct-drive heat pump system is further described below with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a schematic diagram of an energy storage type solar direct-drive heat pump system of the present utility model.
Wherein, 1-solar photovoltaic power generation component; 2-outdoor heat pump system, 3-energy storage water tank; 4-a temperature control regulating valve; 5-floor heating coil pipes; 6-indoor air conditioning; 7-a circulation pump;
10-an indoor air conditioner water inlet pipeline; 11-a water inlet pipeline of the floor heating coil; 12-a temperature control regulating valve connecting pipeline; 13-an indoor air conditioner water outlet pipeline; 14-floor heating coil water outlet pipeline.
Detailed Description
As shown in fig. 1, an energy storage type solar direct-drive heat pump system comprises a solar photovoltaic power generation assembly 1, wherein the solar photovoltaic power generation assembly 1 supplies power to an outdoor heat pump system 2 through a control circuit, an outlet pipeline of the outdoor heat pump system 2 is connected with a first interface of an energy storage water tank 3, an inlet pipeline of the outdoor heat pump system 2 is connected with a second interface of the energy storage water tank 3, a third interface of the energy storage water tank 3 is connected with an energy storage water tank outlet pipeline, the energy storage water tank outlet pipeline is respectively connected with an inlet of a circulating pump 7 and a temperature control adjusting valve connecting pipeline 12, an outlet of the circulating pump 7 is respectively connected with an indoor air conditioner water inlet pipeline 10 and a floor heating coil water inlet pipeline 11, an indoor air conditioner water outlet pipeline 13 and a floor heating coil water outlet pipeline 14 are both connected with a first interface of a temperature control adjusting valve 4, a second interface of the temperature control adjusting valve 4 is connected with an energy storage water tank return pipeline, and the energy storage water tank return pipeline is connected with a fourth interface of the energy storage water tank 3; the temperature control regulating valve connecting pipeline 12 is connected with a third interface of the temperature control regulating valve 4.
The control circuit is electrically connected with the temperature control regulating valve 4, the indoor air conditioner 6, the temperature measuring device of the energy storage water tank 3 and the circulating pump 7.
Valves are arranged on the water outlet pipeline of the energy storage water tank, the water outlet pipeline 13 of the indoor air conditioner and the water outlet pipeline 14 of the floor heating coil.
In summer, the outdoor heat pump system 2 continuously circulates water in the energy storage water tank 3 for refrigeration through an outlet pipeline of the outdoor heat pump system 2 and an inlet pipeline of the outdoor heat pump system 2; in winter, the outdoor heat pump system 2 heats the water in the energy storage water tank 3 continuously in a circulating way through the outlet pipeline of the outdoor heat pump system 2 and the inlet pipeline of the outdoor heat pump system 2.
When the solar radiation intensity is weaker (such as at night or in overcast and rainy days), the generated energy of the solar photovoltaic power generation assembly is small, and the control circuit automatically adjusts the power of the heat pump compressor of the outdoor heat pump system 2 to balance; the control circuit is connected with a mains supply line, and is supplemented by auxiliary mains supply when the power supply is insufficient in night or overcast and rainy days.
When the water in the energy storage water tank 3 is used for cooling an indoor environment, the water in the indoor air conditioner 6 and the cold water in the energy storage water tank 3 are mixed and circulated to keep the indoor environment temperature, a third interface and a fourth interface of the energy storage water tank 3 are opened, valves of an energy storage water tank water outlet pipeline and an indoor air conditioner water outlet pipeline 13 are opened, a valve of a floor heating coil water outlet pipeline 14 is closed, a first interface, a second interface and a third interface of the temperature control regulating valve 4 are opened, and the flow ratio entering the temperature control regulating valve connecting pipeline 12 and the circulating pump 7 is controlled by regulating the opening of the three interfaces and the opening of the valve on the energy storage water tank water outlet pipeline so as to control the indoor temperature; the circulating pump 7 is started, a part of water in the energy storage water tank 3 flows back to the energy storage water tank 3 through the energy storage water tank water outlet pipeline, the circulating pump 7, the indoor air conditioner water inlet pipeline 10, the indoor air conditioner 6, the indoor air conditioner water outlet pipeline 13, the first interface and the second interface of the temperature control regulating valve 4 and the energy storage water tank water return pipeline in sequence, and the other part of water flows back to the energy storage water tank 3 through the energy storage water tank water outlet pipeline, the third interface and the second interface of the temperature control regulating valve 4 and the energy storage water tank water return pipeline in sequence.
When the water in the energy storage water tank 3 is used for supplying heat to the indoor environment, the water in the floor heating coil 5 and the hot water in the energy storage water tank 3 are mixed and circulated so as to keep the indoor environment temperature; the third interface and the fourth interface of the energy storage water tank 3 are opened, valves of a water outlet pipeline of the energy storage water tank and a water outlet pipeline 14 of the floor heating coil are opened, a valve of a water outlet pipeline 13 of the indoor air conditioner is closed, the first interface, the second interface and the third interface of the temperature control regulating valve 4 are opened, and the opening of the three interfaces and the opening of the valve on the water outlet pipeline of the energy storage water tank are regulated to control the flow ratio entering the temperature control regulating valve connecting pipeline 12 and the circulating pump 7 so as to control the indoor temperature; the circulating pump 7 is started, a part of water in the energy storage water tank 3 flows back to the energy storage water tank 3 through the energy storage water tank water outlet pipeline, the circulating pump 7, the floor heating coil water inlet pipeline 11, the floor heating coil 5, the floor heating coil water outlet pipeline 14, the first interface and the second interface of the temperature control regulating valve 4 and the energy storage water tank water return pipeline in sequence, and the other part of water flows back to the energy storage water tank 3 through the energy storage water tank water outlet pipeline, the third interface and the second interface of the temperature control regulating valve 4 and the energy storage water tank water return pipeline in sequence.
When only water in the indoor air conditioner 6 is adopted for circulation to keep the indoor environment temperature, the third interface and the fourth interface of the energy storage water tank 3 are closed, the valve of the water outlet pipeline 13 of the indoor air conditioner is opened, the valves of the water outlet pipeline of the energy storage water tank and the water outlet pipeline 14 of the floor heating coil are closed, the first interface and the third interface of the temperature control regulating valve 4 are opened, and the second interface of the temperature control regulating valve 4 is closed; the circulating pump 7 is started, and water in the indoor air conditioner 6 flows back to the indoor air conditioner 6 through the indoor air conditioner water outlet pipeline 13, the first interface and the third interface of the temperature control regulating valve 4, the temperature control regulating valve connecting pipeline 12, the circulating pump 7 and the indoor air conditioner water inlet pipeline 10 in sequence.
When only water in the floor heating coil 5 is adopted for circulation to keep the indoor environment temperature, the third interface and the fourth interface of the energy storage water tank 3 are closed, the valve of the water outlet pipeline 14 of the floor heating coil is opened, the valves of the water outlet pipeline of the energy storage water tank and the water outlet pipeline 13 of the indoor air conditioner are closed, the first interface and the third interface of the temperature control regulating valve 4 are opened, and the second interface of the temperature control regulating valve 4 is closed; the circulating pump 7 is started, and water in the floor heating coil 5 flows back to the floor heating coil 5 through the floor heating coil water outlet pipeline 14, the first interface and the third interface of the temperature control regulating valve 4, the temperature control regulating valve connecting pipeline 12, the circulating pump 7 and the floor heating coil water inlet pipeline 11 in sequence.
Ground source heat pump system is because need draw groundwater, easily leads to ground subsidence, and heat pump system's return water aftertreatment degree of difficulty is big, with high costs moreover, no longer uses basically at present. Therefore, the outdoor heat pump system in the energy storage type solar direct-drive heat pump system adopts an air source heat pump system with very mature technology in the market.
The solar photovoltaic power generation assembly, the temperature control regulating valve, the floor heating coil pipe and the air conditioner in the energy storage type solar direct-driven heat pump system are all commercially available mature products, and are not described in detail herein.
The working principle of the energy storage type solar direct-drive heat pump system is as follows:
the solar photovoltaic power generation assembly is controlled by a control circuit (frequency conversion) and then is supplied to an outdoor heat pump system, and when the sunlight intensity of the outdoor heat pump system is high, cold water (heating water in winter) is prepared at a high speed and stored in an energy storage water tank; when the sun illumination intensity is low, the outdoor heat pump system is operated or stopped by reducing power through MPPT (maximum power point tracking). Regardless of high or low illumination intensity, the whole system preferentially ensures the circulating operation of the indoor air conditioner or the floor heating coil. The system has the places with operation requirements or more accurate indoor temperature requirements at night, and can switch the control circuit to a mains supply line to ensure normal operation at night. The whole system operates by taking solar energy as a main energy source and mains supply as an auxiliary energy source.
The water in the energy storage water tank is used as an energy storage medium, and the cooling and heating requirements of the outdoor heat pump system and indoor users are maintained by the water temperature in the energy storage water tank.
Indoor user cooling and heating requirements: the indoor circulating water temperature is regulated by the flow of the water outlet and the return water in the energy storage water tank. For example: in summer, when the water temperature in the energy storage water tank is very low, the circulation flow of the energy storage water tank to the indoor air conditioner is regulated to a small amount, the amount of circulating backwater is regulated to be large, and the water in the energy storage water tank is regulated to a proper temperature, so that the energy storage energy of the energy storage water tank can be ensured, and the indoor temperature control can be ensured. When the indoor temperature meets the requirement, taking the energy-saving requirement into consideration, stopping the indoor air conditioner or the coil pipe, and concentrating the electric power to store energy for the outdoor heat pump system; after waiting for a certain temperature difference (the difference between the required temperature and the actual temperature) in the room, the indoor air conditioner or the coil is started again.
The system is operated and controlled in such a way that cold energy or heat energy is stored at full speed when the sunlight is strong; and when sunlight is weak, the maximum power is actively tracked to adjust the amount of stored cold energy or heat energy, so that the normal operation of the equipment is ensured. When sunlight is weak to a certain degree, the compressor of the heat pump system stops preparing cold or heat, only the cold source or the heat source stored in the energy storage water tank is temporarily used, and the temperature is adjusted according to the requirements (refrigerating and heating) and then output.
When the water in the indoor air conditioner or the floor heating coil is enough to maintain the indoor temperature requirement, the water in the energy storage water tank can be even not used, and the self circulation is carried out only by depending on the corresponding pipeline of the air conditioner or the corresponding pipeline of the floor heating coil.
The foregoing examples are merely illustrative of the preferred embodiments of the present utility model and are not to be construed as limiting the scope of the utility model, and various modifications and improvements made by those skilled in the art to which the utility model pertains will fall within the scope of the utility model as defined by the appended claims without departing from the spirit of the utility model.
Claims (9)
1. An energy storage type solar direct-drive heat pump system is characterized in that: the solar energy heat pump system comprises a solar energy photovoltaic power generation assembly (1), wherein the solar energy photovoltaic power generation assembly (1) supplies power to an outdoor heat pump system (2) through a control circuit, an outlet pipeline of the outdoor heat pump system (2) is connected with a first interface of an energy storage water tank (3), an inlet pipeline of the outdoor heat pump system (2) is connected with a second interface of the energy storage water tank (3), a third interface of the energy storage water tank (3) is connected with an energy storage water tank outlet pipeline, the energy storage water tank outlet pipeline is respectively connected with an inlet of a circulating pump (7) and a temperature control regulating valve connecting pipeline (12), an outlet of the circulating pump (7) is respectively connected with an indoor air conditioner water inlet pipeline (10) and a floor heating coil water inlet pipeline (11), an indoor air conditioner water outlet pipeline (13) and a floor heating coil water outlet pipeline (14) are both connected with a first interface of a temperature control regulating valve (4), a second interface of the temperature control regulating valve (4) is connected with an energy storage water tank return pipeline, and the energy storage water tank return pipeline is connected with a fourth interface of the energy storage water tank (3); the temperature control regulating valve connecting pipeline (12) is connected with a third interface of the temperature control regulating valve (4).
2. The energy storage solar direct drive heat pump system of claim 1, wherein: the control circuit is electrically connected with the temperature control regulating valve (4), the indoor air conditioner (6), the temperature measuring device of the energy storage water tank (3) and the circulating pump (7).
3. The energy storage solar direct drive heat pump system according to claim 2, wherein: valves are arranged on the water outlet pipeline of the energy storage water tank, the water outlet pipeline (13) of the indoor air conditioner and the water outlet pipeline (14) of the floor heating coil.
4. The energy-storage solar direct-drive heat pump system according to claim 3, wherein: in summer, the outdoor heat pump system (2) continuously circulates water in the energy storage water tank (3) for refrigeration through an outlet pipeline of the outdoor heat pump system (2) and an inlet pipeline of the outdoor heat pump system (2); in winter, the outdoor heat pump system (2) heats water in the energy storage water tank (3) continuously in a circulating way through an outlet pipeline of the outdoor heat pump system (2) and an inlet pipeline of the outdoor heat pump system (2).
5. The energy-storage solar direct-drive heat pump system according to claim 4, wherein: when the solar radiation intensity is weaker, the control circuit automatically adjusts the power of the heat pump compressor of the outdoor heat pump system (2) to balance; the control circuit is connected with a mains supply line, and is supplemented by auxiliary mains supply when the power supply is insufficient in night or overcast and rainy days.
6. The energy-storage solar direct-drive heat pump system according to claim 5, wherein: when water in the energy storage water tank (3) is used for cooling an indoor environment, water in the indoor air conditioner (6) and cold water in the energy storage water tank (3) are subjected to mixed circulation to keep the indoor environment temperature, a third interface and a fourth interface of the energy storage water tank (3) are opened, valves of an energy storage water tank water outlet pipeline and an indoor air conditioner water outlet pipeline (13) are opened, a valve of a floor heating coil water outlet pipeline (14) is closed, a first interface, a second interface and a third interface of a temperature control regulating valve (4) are opened, and the flow ratio of the water entering the temperature control regulating valve connecting pipeline (12) and a circulating pump (7) is controlled by regulating the opening of the three interfaces and the opening of the valve on the energy storage water tank water outlet pipeline so as to control the indoor temperature; starting a circulating pump (7), wherein a part of water in the energy storage water tank (3) flows back to the energy storage water tank (3) through a water outlet pipeline of the energy storage water tank, the circulating pump (7), an indoor air conditioner water inlet pipeline (10), an indoor air conditioner (6), an indoor air conditioner water outlet pipeline (13), a first interface and a second interface of a temperature control regulating valve (4) and a water return pipeline of the energy storage water tank in sequence, and the other part of water flows back to the energy storage water tank (3) through a water outlet pipeline of the energy storage water tank, a third interface and a second interface of the temperature control regulating valve (4) and a water return pipeline of the energy storage water tank in sequence.
7. The energy-storage solar direct-drive heat pump system according to claim 5, wherein: when the water in the energy storage water tank (3) is used for supplying heat for the indoor environment, the water in the floor heating coil pipe (5) and the hot water of the energy storage water tank (3) are subjected to mixed circulation so as to keep the indoor environment temperature; the third interface and the fourth interface of the energy storage water tank (3) are opened, valves of the water outlet pipeline of the energy storage water tank and the water outlet pipeline (14) of the floor heating coil are opened, the valve of the indoor air conditioner water outlet pipeline (13) is closed, the first interface, the second interface and the third interface of the temperature control regulating valve (4) are opened, and the flow ratio entering the temperature control regulating valve connecting pipeline (12) and the circulating pump (7) is controlled by regulating the opening of the three interfaces and the opening of the valve on the water outlet pipeline of the energy storage water tank so as to control the indoor temperature; starting a circulating pump (7), wherein a part of water in the energy storage water tank (3) flows back to the energy storage water tank (3) through a water outlet pipeline of the energy storage water tank, the circulating pump (7), a water inlet pipeline (11) of a floor heating coil, a floor heating coil (5), a water outlet pipeline (14) of the floor heating coil, a first interface and a second interface of a temperature control regulating valve (4) and a water return pipeline of the energy storage water tank in sequence, and the other part of water flows back to the energy storage water tank (3) through a water outlet pipeline of the energy storage water tank, a third interface and a second interface of the temperature control regulating valve (4) and a water return pipeline of the energy storage water tank in sequence.
8. The energy-storage solar direct-drive heat pump system according to claim 5, wherein: when only water in the indoor air conditioner (6) is adopted for circulation to keep the indoor environment temperature, a third interface and a fourth interface of the energy storage water tank (3) are closed, a valve of the indoor air conditioner water outlet pipeline (13) is opened, a valve of the energy storage water tank water outlet pipeline and a valve of the floor heating coil water outlet pipeline (14) are closed, a first interface and a third interface of the temperature control regulating valve (4) are opened, and a second interface of the temperature control regulating valve (4) is closed; starting the circulating pump (7), and enabling water in the indoor air conditioner (6) to flow back to the indoor air conditioner (6) through the indoor air conditioner water outlet pipeline (13), the first interface and the third interface of the temperature control regulating valve (4), the temperature control regulating valve connecting pipeline (12), the circulating pump (7) and the indoor air conditioner water inlet pipeline (10) in sequence.
9. The energy-storage solar direct-drive heat pump system according to claim 5, wherein: when only water in the floor heating coil pipe (5) is adopted for circulation to keep indoor environment temperature, a third interface and a fourth interface of the energy storage water tank (3) are closed, a valve of a water outlet pipeline (14) of the floor heating coil pipe is opened, a valve of a water outlet pipeline of the energy storage water tank and a water outlet pipeline (13) of the indoor air conditioner is closed, a first interface and a third interface of the temperature control regulating valve (4) are opened, and a second interface of the temperature control regulating valve (4) is closed; starting the circulating pump (7), and enabling water in the floor heating coil (5) to flow back to the floor heating coil (5) through the floor heating coil water outlet pipeline (14), the first interface and the third interface of the temperature control regulating valve (4), the temperature control regulating valve connecting pipeline (12), the circulating pump (7) and the floor heating coil water inlet pipeline (11) in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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