Solar air conditioning system applied to living environment

Abstract

The utility model discloses a solar air conditioning system applied to living environment, including solar heat collecting mechanism, primary water storage tank, heat pump heating mechanism, secondary water storage tank, coil fan, cold gas pipe, solar heat collecting mechanism carries out heating to the water in primary water storage tank, heat pump heating mechanism is connected with cold gas pipe and secondary water storage tank, and the water in secondary water storage tank is heated through, the refrigeration export of cold gas pipe is connected to heat pump heating mechanism, is used for transmitting cold air to the indoor temperature adjustment, and primary water storage tank and secondary water storage tank are connected with coil fan through pump and valve, and the indoor heating is supplied through coil fan, primary water storage tank still supplies to the indoor floor heating. Can utilize solar energy and heat pump combination for living environment provides stable room temperature and hot water supply, and realizes the indoor cooling regulation through heat pump refrigeration function, improves energy utilization efficiency.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning, specifically a solar-powered air conditioning system for use in living environments. Background Technology

[0002] Currently, indoor cooling is achieved using air conditioning, while heating is achieved using either air conditioning or underfloor heating. Hot water requires additional heating using an electric or gas water heater.

[0003] Each relief effort is carried out independently, requiring its own independent energy supply, making it impossible to form a complete system, resulting in persistently low energy efficiency. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a solar air conditioning system for living environments, which can use solar energy and heat pumps to provide a stable room temperature and hot water supply for living environments, and achieve indoor temperature regulation through heat pump cooling function, thereby improving energy utilization efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A solar-powered air conditioning system for residential environments, comprising... Solar thermal collector, primary water storage tank, heat pump heating mechanism, secondary water storage tank, fan coil unit, and air conditioning pipes; The solar thermal collector heats the water in the primary water storage tank; The heat pump heating mechanism is connected to both the cold air pipe and the secondary water storage tank, and heats the water in the secondary water storage tank. The cold air pipe is connected to the cooling outlet of the heat pump heating mechanism to transmit cold air to the room for temperature regulation. Both the primary and secondary water storage tanks are connected to the coil fan through pumps and valves, and the coil fan supplies heating to the room. The primary water storage tank also supplies water to the underfloor heating system.

[0006] As a further improvement of this utility model, both the primary water storage tank and the secondary water storage tank are equipped with coils. The coil in the primary water storage tank is connected to the circulation pipeline of the solar thermal collector, and the coil in the secondary water storage tank is connected to the circulation pipeline of the heat pump heating mechanism. The heated water flows through the coils via the circulation pipeline to heat the water in the primary and secondary water storage tanks.

[0007] As a further improvement of this utility model, the primary water storage tank is connected to the secondary water storage tank through a coil fan. Water flows into the secondary water storage tank after heat exchange by the coil fan, and the hot water in the secondary water storage tank is returned to the secondary water storage tank through the coil fan.

[0008] As a further improvement of this utility model, the coil in the secondary water storage tank is also connected in parallel to the circulation pipeline of the solar thermal collector.

[0009] As a further improvement of this utility model, the two ends of the coil in the secondary water storage tank are connected in parallel to the circulation pipeline of the solar thermal collector through valves; the two ends of the coil in the primary water storage tank are connected in parallel to the circulation pipeline of the solar thermal collector through valves.

[0010] As a further improvement of this utility model, both the primary water storage tank and the secondary water storage tank are connected to an external water source.

[0011] The beneficial effects of this invention are that, through the combined operation of the solar thermal collector and the heat pump heating mechanism, solar energy is primarily used to heat the primary water storage tank when there is sufficient sunlight. When sunlight is insufficient or at night, the heat pump heating mechanism supplements or replaces the heating for the secondary water storage tank. Simultaneously, the cooling function of the heat pump heating mechanism is used to cool the room when needed via air ducts. The primary water storage tank supplies hot water to the underfloor heating system to maintain the water temperature, thereby improving energy efficiency, alleviating the problem of discontinuous heating from a single energy source, and improving indoor temperature regulation. The water from both the primary and secondary water storage tanks can also be used for domestic hot water after passing through a filter. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the connection structure of this utility model; Reference numerals: 1. Solar thermal collector; 2. Primary water storage tank; 3. Heat pump heating mechanism; 4. Secondary water storage tank; 5. Fan coil unit; 6. Air conditioning pipe. Detailed Implementation

[0013] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0014] Reference Figure 1 As shown, this embodiment of a solar-powered air conditioning system for residential environments includes a solar collector 1, a primary water storage tank 2, a heat pump heating mechanism 3, a secondary water storage tank 4, a coil fan 5, and a cooling pipe 6. The solar collector 1 heats the water in the primary water storage tank 2. The heat pump heating mechanism 3 is connected to both the cooling pipe 6 and the secondary water storage tank 4, and heats the water in the secondary water storage tank 4. The cooling pipe 6 is connected to the cooling outlet of the heat pump heating mechanism 3, and is used to transmit cold air to the room for temperature regulation. The primary water storage tank 2 and the secondary water storage tank 4 are both connected to the coil fan 5 through pumps and valves, and the coil fan 5 supplies heat to the room. The primary water storage tank 2 also supplies heat to the underfloor heating system in the room.

[0015] Solar collector 1 absorbs solar energy and converts it into heat energy to heat the water in primary storage tank 2. The hot water in primary storage tank 2 is then pumped and valved to a fan coil unit 5, which releases the heat into the indoor air, thus providing indoor heating. Heat pump heating unit 3 consumes electricity to heat the water in secondary storage tank 4. The hot water in secondary storage tank 4 is also pumped and valved to the fan coil unit 5 for heating. When cooling is needed, heat pump heating unit 3 generates cool air, which is then piped through cooling pipe 6 to lower the indoor temperature. For example, this method can be used to regulate temperature during the day when it is too high in summer. The water in primary storage tank 2 is also supplied to the underfloor heating system through pipes. By combining solar energy and a heat pump, solar energy is primarily used for heating when there is sufficient sunlight, while the heat pump supplements or replaces heating when there is insufficient sunlight or at night. Simultaneously, the heat pump's cooling function is used to achieve cooling in summer and provide hot water, thereby improving energy efficiency, alleviating the problem of discontinuous heating from a single energy source, and improving the stability of indoor temperature. The heat pump heating mechanism 3 can be a heat recovery type heat pump.

[0016] To improve heat exchange efficiency, in one optional scheme, both the primary water storage tank 2 and the secondary water storage tank 4 are equipped with coils. The coils in the primary water storage tank 2 are connected to the circulation pipes of the solar thermal collector 1, and the coils in the secondary water storage tank 4 are connected to the circulation pipes of the heat pump heating mechanism 3. The heated water flows through the coils via the circulation pipes to heat the water in the primary water storage tank 2 and the secondary water storage tank 4.

[0017] The coils are immersed in the water in the primary water tank 2 and the secondary water tank 4. The circulation pipe of the solar collector 1 is connected to the coil in the primary water tank 2. The heated medium flows inside the coil and exchanges heat with the water in the primary water tank 2 through the coil wall. The circulation pipe of the heat pump heating mechanism 3 is connected to the coil in the secondary water tank 4. The heated medium flows inside the coil and exchanges heat with the water in the secondary water tank 4 through the coil wall. The coils can be arranged in a spiral or S-shape to increase the heat exchange area. By using indirect heat exchange through coils, the heating medium does not directly contact the water in the tanks, which facilitates separate control of the water quality and the composition of the heating medium, improves the uniformity of heat exchange, improves the water temperature distribution in the tanks, avoids local overheating, and facilitates independent maintenance of each circulation system, reducing the risk of water pollution caused by medium mixing.

[0018] Specifically, the following method can be selected for further optimization: the primary water storage tank 2 is connected to the secondary water storage tank 4 through the coil fan 5. After the water is heated by the coil fan 5, it flows into the secondary water storage tank 4. The hot water in the secondary water storage tank 4 is returned to the secondary water storage tank 4 through the coil fan 5.

[0019] Water in the primary storage tank 2 is transported to the fan coil unit 5 via pipes and a pump. After heat exchange with indoor air in the fan coil unit 5, the water temperature decreases, and then flows into the secondary storage tank 4. Hot water in the secondary storage tank 4 is pumped to the fan coil unit 5, exchanges heat with indoor air, and then flows back to the secondary storage tank 4, forming a circulating heating loop between the secondary storage tank 4 and the fan coil unit 5. By connecting the primary storage tank 2 and the secondary storage tank 4 to the fan coil unit 5 respectively, the hot water in the two tanks can be flexibly allocated according to the temperature requirements of different areas of the room, achieving tiered heating. The waste heat in the primary storage tank 2 enters the secondary storage tank 4 after heat exchange with the fan coil unit 5, where it can be further utilized or reheated by the heat pump heating mechanism 3, thereby improving the tiered utilization rate of heat and alleviating the problem of inflexible heat distribution in the single-stage heat storage mode.

[0020] In some options, the coils in the secondary water storage tank 4 are also connected in parallel to the circulation pipeline of the solar thermal collector 1.

[0021] Under sufficient sunlight, the circulation pipeline of the solar collector 1 is connected not only to the coil in the primary water storage tank 2, but also to the coil in the secondary water storage tank 4 via parallel branches. This allows the heat generated by the solar collector 1 to be transferred simultaneously or separately to both the primary and secondary water storage tanks 2 and 4. The parallel connection can be achieved using a T-joint or a distributor, distributing heat according to the temperature requirements of the two tanks. When the water temperature in the primary water storage tank 2 meets the requirements but the secondary water storage tank 4 still needs heating, solar heat can be directly supplemented through the coil in the secondary water storage tank 4, reducing the operating time of the heat pump heating mechanism 3, improving the utilization rate of solar heat, alleviating the load on the heat pump heating mechanism 3, and improving the problem of uneven energy distribution in multi-stage heat storage mode.

[0022] Furthermore, the coils in the secondary water storage tank 4 are connected in parallel to the circulation pipeline of the solar thermal collector 1 via valves at both ends; the coils in the primary water storage tank 2 are connected in parallel to the circulation pipeline of the solar thermal collector 1 via valves at both ends.

[0023] Valves are installed at both ends of the coil in the secondary water storage tank 4 and at both ends of the coil in the primary water storage tank 2. The opening, closing, or adjustment of these valves controls the flow rate and continuity of the circulation pipeline between each coil and the solar collector 1. When the water temperature in the primary water storage tank 2 reaches the set value and the secondary water storage tank 4 needs heating, the valve corresponding to the coil in the secondary water storage tank 4 can be opened, and the opening of the valve corresponding to the coil in the primary water storage tank 2 can be adjusted, allowing the solar heat to primarily flow to the secondary water storage tank 4. When both tanks need heating, both valves can be opened simultaneously. The valves can be manual shut-off valves, ball valves, or solenoid valves or electric regulating valves that are automatically controlled based on temperature sensor signals.

[0024] In addition, both the primary water storage tank 2 and the secondary water storage tank 4 are connected to an external water source.

[0025] To avoid the problem of reduced heat storage capacity due to water loss, which could affect the stability of temperature maintenance.

[0026] Combining the above implementation methods, the complete workflow of this solar air conditioning system is as follows: An external water source replenishes water to the primary water storage tank 2 and the secondary water storage tank 4 to maintain the water level. The solar collector 1 heats the water in the primary water storage tank 2 through the circulation pipes and the coils in the primary water storage tank 2. When there is sufficient sunlight, the coils in the secondary water storage tank 4 can also be connected in parallel to the circulation pipes of the solar collector 1 by opening the corresponding valves, simultaneously heating the secondary water storage tank 4. The heat pump heating mechanism 3 heats the medium in the circulation pipes of the secondary water storage tank 4, and then heats the water in the secondary water storage tank 4 through the coils in the secondary water storage tank 4. When needed, it delivers cool air to the room through the cold air pipe 6 to achieve cooling. The water in the primary water storage tank 2 flows into the secondary water storage tank 4 after being heated by the coil fan 5. The hot water in the secondary water storage tank 4 flows back after being heated by the coil fan 5. The primary water storage tank 2 also supplies hot water to the indoor underfloor heating system. The flow rate of each pipeline is regulated by pumps and valves, and solar energy and heat pumps are switched or used in combination according to the lighting conditions and temperature requirements to achieve indoor air temperature regulation.

[0027] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A solar-powered air conditioning system for residential environments, characterized in that, include Solar thermal collector, primary water storage tank, heat pump heating mechanism, secondary water storage tank, fan coil unit, and air conditioning pipes; The solar thermal collector heats the water in the primary water storage tank; The heat pump heating mechanism is connected to both the cold air pipe and the secondary water storage tank, and heats the water in the secondary water storage tank. The cold air pipe is connected to the cooling outlet of the heat pump heating mechanism to transmit cold air to the room for temperature regulation. Both the primary and secondary water storage tanks are connected to the coil fan through pumps and valves, and the coil fan supplies heating to the room. The primary water storage tank also supplies water to the underfloor heating system.

2. The solar-powered air conditioning system for residential environments according to claim 1, characterized in that, Both the primary and secondary water storage tanks are equipped with coils. The coils in the primary water storage tank are connected to the circulation pipes of the solar thermal collector, and the coils in the secondary water storage tank are connected to the circulation pipes of the heat pump heating mechanism. The heated water flows through the coils via the circulation pipes to heat the water in the primary and secondary water storage tanks.

3. The solar-powered air conditioning system for residential environments according to claim 2, characterized in that, The primary water storage tank is connected to the secondary water storage tank via a coil fan. Water flows into the secondary water storage tank after heat exchange via the coil fan, and the hot water in the secondary water storage tank returns to the secondary water storage tank via the coil fan.

4. The solar-powered air conditioning system for residential environments according to claim 2 or 3, characterized in that, The coils in the secondary water storage tank are also connected in parallel to the circulation pipeline of the solar thermal collector.

5. The solar-powered air conditioning system for residential environments according to claim 4, characterized in that, The coils in the secondary water storage tank are connected in parallel to the circulation pipeline of the solar collector through valves at both ends; the coils in the primary water storage tank are connected in parallel to the circulation pipeline of the solar collector through valves at both ends.

6. The solar-powered air conditioning system for residential environments according to claim 1, characterized in that, Both the primary and secondary water storage tanks are connected to an external water source.

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