Household energy storage radiation air conditioning system

Abstract

The utility model relates to a household type energy storage radiation air-conditioning system, which comprises a heat pump module, a heat pump module and an energy storage radiation air-conditioning module, the phase change buffer water tank module comprises a water tank, a water supply area and a water return area are arranged in the water tank and provided with phase change material packaging blocks, a water supply main pipe is connected with the water supply area, and a water return main pipe is connected with the water return area. The water mixing pump station module comprises a plurality of water supply and return branch pipe groups, and each water supply and return branch pipe group comprises a water supply branch pipe connected with the water supply area and a water return branch pipe connected with the water return area; the water inlet end of the capillary thermal activation module is connected with the water supply branch pipe in one water supply and return branch pipe set, and the water outlet end of the capillary thermal activation module is connected with the water return branch pipe in the water supply and return branch pipe set. The household type energy storage radiation air-conditioning system can solve the problem that a host is frequently started or energy conservation is not facilitated due to the fact that an existing air-conditioning system is low in cold storage capacity and heat storage capacity.

Description

Technical Field

[0001] This utility model relates to the field of heating, ventilation and air conditioning, specifically a household-type energy storage radiant air conditioning system. Background Technology

[0002] With the development of smart homes, more and more private homeowners are installing or retrofitting their air conditioning systems into residential radiant air conditioning systems in their homes (high-end residences, apartments, villas), improving air quality and thermal comfort. However, in the past five years of engineering practice, the following problems have inevitably emerged: 1. The water tank is small in size, resulting in a small capacity and limited heat and cold storage capacity. Under low load, the main unit will start frequently. 2. When the terminal load changes significantly, the main unit frequency increases rapidly, which is detrimental to energy saving. 3. When the heat pump malfunctions, the system stops, resulting in the inability to cool or heat. Utility Model Content

[0003] This utility model provides a household-type energy storage radiant air conditioning system, which can solve the problem of low cold and heat storage capacity of existing air conditioning systems, leading to frequent start-ups of the main unit or being detrimental to energy conservation.

[0004] The individual household energy storage radiant air conditioning system of this utility model includes:

[0005] The heat pump module includes a main water supply pipe and a main water return pipe;

[0006] A phase change buffer water tank module includes a water tank, which has a water supply area and a water return area. The water supply area and the water return area are connected by a flow channel. Both the water supply area and the water return area are provided with phase change material encapsulation blocks. The main water supply pipe is connected to the water supply area, and the main water return pipe is connected to the water return area.

[0007] A mixing water pump station module includes multiple supply and return water branch pipe groups. Each supply and return water branch pipe group includes a supply water branch pipe connected to the supply area and a return water branch pipe connected to the return water area. At least some of the supply and return water branch pipe groups are provided with a mixing valve and a mixing pipe. The mixing valve is located on the supply water branch pipe, and one end of the mixing pipe is connected to the mixing valve, while the other end is connected to the return water branch pipe in the supply and return water branch pipe group.

[0008] Multiple radiating terminals, each radiating terminal having its inlet connected to the supply branch pipe of one of the supply and return branch pipe groups, and its outlet connected to the return branch pipe of the same supply and return branch pipe group.

[0009] A capillary thermal activation module is installed on the exterior wall of the building. The inlet end of the capillary thermal activation module is connected to the supply branch pipe in one of the sets of supply and return water branch pipe groups, and the outlet end of the capillary thermal activation module is connected to the return branch pipe in the same set of supply and return water branch pipe groups.

[0010] Preferably, the individual household energy storage radiant air conditioning system further includes a solar thermal collector module, which includes a solar thermal collector panel and a domestic hot water tank. The inlet of the capillary thermal activation module is connected to the outlet of the domestic hot water tank through a hot water pipe. The hot water pipe is equipped with a hot water valve, and the outlet of the capillary thermal activation module is connected to the inlet of the domestic hot water tank.

[0011] Preferably, the water inlet of the capillary thermal activation module is also connected to a tap water pipe, which is equipped with a cold water valve that controls whether water is supplied to the capillary thermal activation module.

[0012] Preferably, the radiating end includes a first radiating end, which includes a water distribution device and a radiating plate.

[0013] Preferably, the radiant terminal further includes a second radiant terminal, which includes a manifold and a floor heating coil.

[0014] Preferably, the individual household energy storage radiant air conditioning system further includes a fresh air unit module, which is equipped with a heat exchange and dehumidification function section. The inlet end of the heat exchange and dehumidification function section is connected to the water supply branch pipe of one of the sets of supply and return water branch pipe groups, and the outlet end of the heat exchange and dehumidification function section is connected to the water supply branch pipe of the supply and return water branch pipe group.

[0015] Preferably, the fresh air unit module is also equipped with an air supply and humidification section, and the water supply pipe is also connected to the air supply and humidification section.

[0016] Compared with existing technologies, this utility model has the following advantages: The individual household energy storage radiant air conditioning system of this utility model can utilize a phase change buffer water tank module for energy storage. When heating is needed, the heat pump module generates heat, and the phase change material encapsulation block of the phase change buffer water tank module stores heat. When cooling is needed, the heat pump module cools, and the phase change material encapsulation block of the phase change buffer water tank module stores cold. This increases the heat and cold storage capacity while maintaining a constant tank volume. The radiant terminals can utilize the heat or cold stored in the phase change buffer water tank module. Therefore, even with a small load, the main unit will not start frequently, and even with large load changes, the main unit frequency will not rise rapidly. This achieves peak shaving and valley filling, which helps reduce the main unit configuration, allowing for the selection of a smaller main unit. Simultaneously, it achieves optimal matching between the air conditioning main unit and the terminals, improving the overall system's energy efficiency. Furthermore, it provides a basis for implementing a regular control operation strategy that meets actual needs and for achieving intermittent operation of the main unit. This avoids frequent starts of the main unit and ensures normal defrosting in winter, effectively improving the problem of excessive indoor temperature fluctuations. Meanwhile, when the heat pump efficiency is low, the phase change buffer tank module releases stored energy, and when the heat pump efficiency is high, it stores energy to improve the system's energy efficiency. In addition, the phase change buffer tank module can utilize electricity during off-peak hours at night for heat or cold storage, releasing energy during peak or peak periods, which can reduce costs. Even when the heat pump fails, the phase change buffer tank module can maintain cooling or heating for a period of time. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a household-type energy storage radiant air conditioning system according to an embodiment of the present invention.

[0018] Figure Labels

[0019] 1 heat pump module, 11 heat pump, 12 main water supply pipe, 13 main water return pipe;

[0020] 2 phase change buffer water tank module, 21 water tank, 211 water supply area, 212 water return area, 22 phase change material encapsulation block, 23 partition plate, 24 flow channel;

[0021] 3 Mixing pump station module, 31 Water supply branch pipe, 32 Water return branch pipe, 33 Mixing valve, 34 Mixing pipe;

[0022] 41 First radiant terminal, 411 Manifold, 412 Radiant panel, 42 Second radiant terminal, 421 Manifold, 422 Underfloor heating coil;

[0023] 5. Plate heat exchanger;

[0024] 6. Capillary thermal activation module;

[0025] 7. Solar collector module; 71. Solar collector panel; 72. Domestic hot water tank;

[0026] 8. Water supply pipes;

[0027] 9 Fresh air unit modules, 91 heat exchange and dehumidification function section, 92 air supply and humidification section. Detailed Implementation

[0028] This utility model provides a household-specific energy storage radiant air conditioning system, such as Figure 1 As shown, the air conditioning system includes a heat pump module 1, a phase change buffer tank module 2, a mixing pump station module 3, and multiple radiant terminals 41, 42. The heat pump module 1 is used to generate heat or cool, and includes a heat pump 11, a main water supply pipe 12, and a main water return pipe 13. Both the main water supply pipe 12 and the main water return pipe 13 are equipped with valves. Figure 1 In the diagram, the main water supply pipe 12 is represented by a solid line, and the return water pipe 13 is represented by a dashed line.

[0029] Phase change buffer water tank module 2 includes a water tank 21, which contains a water supply area 211 and a water return area 212. The water supply area 211 and the water return area 212 are connected by a flow channel 24. In this embodiment, as shown... Figure 1 As shown, water tank 21 includes three interconnected water tanks. Of course, in other embodiments, one or two water tanks may also be used. In this embodiment, the uppermost water tank has a partition 23. The area above the partition 23 is the water supply area 211, and the area below the partition 23, including the two lower water tanks, is the return water area 212. Both the water supply area 211 and the return water area 212 are equipped with phase change material encapsulation blocks 22. The main water supply pipe 12 is connected to the water supply area 211, and the main return water pipe 13 is connected to the return water area 212. The phase change material encapsulation blocks can store energy by absorbing heat from the water in the tank and release energy by releasing latent heat and transferring it to the water. Therefore, they can store both heat and cold.

[0030] The mixing pump station module 3 includes multiple supply and return water branch pipe groups. Each supply and return water branch pipe group includes a supply water branch pipe 31 connected to the supply water area 211 and a return water branch pipe 32 connected to the return water area 212. Figure 1In the diagram, the water supply branch pipe 31 is represented by a solid line, and the return branch pipe 32 is represented by a dashed line. Each water supply branch pipe 31 is equipped with a valve, which can be closed or opened as needed. At least some of the water supply and return branch pipe groups are equipped with a mixing valve 33 and a mixing pipe 34. The mixing valve 33 can be an electric three-way regulating valve. The mixing valve 33 is located on the water supply branch pipe 31. The mixing pipe 34 is a bypass pipe, with one end connected to the mixing valve 33 and the other end connected to the return branch pipe 32 in the water supply and return branch pipe group. The inlet of each radiant terminal 41, 42 is connected to the water supply branch pipe 31 of one of the water supply and return branch pipe groups, and the outlet is connected to the return branch pipe 32 in the same group. A mixing pump station can supply water to each radiant terminal 41, 42. The mixing valve 33 and the mixing pipe 34 can regulate the water temperature in the water supply branch pipe 31.

[0031] The residential energy storage radiant air conditioning system also includes a capillary thermal activation module 6 installed on the exterior wall of the house. The inlet end of the capillary thermal activation module 6 is connected to the supply branch pipe 31 in one of the sets of supply and return water branch pipe groups, and the outlet end of the capillary thermal activation module 6 is connected to the return water branch pipe 32 in the same set of supply and return water branch pipe groups.

[0032] This utility model's individual household energy storage radiant air conditioning system utilizes a phase change buffer water tank module 2 for energy storage. When heating is needed, the heat pump module 1 provides heat, and the phase change material encapsulation block in the phase change buffer water tank module 2 stores heat. When cooling is needed, the heat pump module 1 provides cooling, and the phase change material encapsulation block in the phase change buffer water tank module 2 stores cold. This increases the heat and cold storage capacity while maintaining the same volume of the water tank 21. The radiant terminals 41 and 42 can utilize the heat or cold stored in the phase change buffer water tank module 2. Therefore, even with a small load, the main unit will not start frequently, and even with large load changes, the main unit frequency will not increase rapidly. This achieves peak shaving and valley filling, which helps reduce the main unit's configuration, allowing for the selection of a smaller main unit. It also achieves optimal matching between the air conditioning main unit and the terminals, improving the overall system's energy efficiency. Furthermore, it provides a basis for implementing a regular control operation strategy that meets actual needs and for intermittent operation of the main unit. This avoids frequent starts of the main unit and ensures normal defrosting in winter, effectively improving the problem of excessive indoor temperature fluctuations. Simultaneously, when the heat pump 11 is less efficient, the phase change buffer tank module 2 releases stored energy, and when the heat pump 11 is more efficient, it stores energy, improving the system's energy efficiency. Furthermore, the phase change buffer tank module 2 can utilize electricity during off-peak hours at night for heat or cold storage, reducing costs. Even when the heat pump 11 fails, the phase change buffer tank module 2 can maintain cooling or heating for a period of time. In winter, the phase change buffer tank module 2 can supply hot water to the capillary thermal activation module 6 to offset heat loss from the building envelope caused by indoor and outdoor temperature differences. In summer, the phase change buffer tank module 2 can supply cold water to the capillary thermal activation module 6 to prevent the exterior walls from overheating due to sun exposure.

[0033] The individual household energy storage radiant air conditioning system may also include a plate heat exchanger 5 for receiving hot water from municipal heating. The outlet of the plate heat exchanger 5 is connected to the main water supply pipe 12, and the return water outlet is connected to the main return water pipe 13. The plate heat exchanger 5 and the heat pump 11 are connected in parallel, and can be switched between the two as needed when heating is required.

[0034] like Figure 1 As shown, in this embodiment, the first radiant terminal 41 includes a manifold 411 and radiant panels 412 connected to the manifold 411, and the second radiant terminal 42 includes a manifold 421 and floor heating coils 422 connected to the manifold 421. The supply and return water branch pipe groups connected to the first radiant terminal 41 and the second radiant terminal 42 are each equipped with a mixing valve 33 and a mixing pipe 34. Furthermore, the water temperature of each room's radiant terminals 41 and 42 can be automatically adjusted individually by the switching interval of an electric actuator (not shown in the figure) installed on each manifold 411, 421 circuit. This allows for the adjustment of the temperature of the radiant panels and floor heating coils.

[0035] The individual household energy storage radiant air conditioning system also includes a solar thermal collector module 7, which comprises a solar collector panel 71 and a domestic hot water tank 72. The inlet of the capillary thermal activation module 6 is connected to the outlet of the domestic hot water tank 72 via a hot water pipe equipped with a hot water valve. The outlet of the capillary thermal activation module 6 is connected to the inlet of the domestic hot water tank 72. In addition to providing hot water to domestic hot water modules (such as bathroom showers, washrooms, and kitchen sinks), the domestic hot water tank 72 can also provide hot water at a certain temperature to the capillary thermal activation module 6, even on cloudy days or during snowfall in winter. In winter, the solar thermal collector module 7 can supply hot water to the capillary thermal activation module 6 to offset heat loss from the building envelope caused by the temperature difference between indoors and outdoors. Users can choose to use the solar thermal collector module 7 to provide hot water to the capillary thermal activation module 6 during the day and the phase change buffer tank module 2 to provide hot water to the capillary thermal activation module 6 at night.

[0036] like Figure 1As shown, the inlet of the capillary thermal activation module 6 is also connected to a tap water pipe 8. The tap water pipe 8 is equipped with a cold water valve that controls whether water is supplied to the capillary thermal activation module. Of course, the tap water needs to be filtered before entering the capillary thermal activation module 6. In summer, water from the tap water pipe 8 can be introduced into the capillary thermal activation module 6 to prevent the wall from overheating due to sun exposure, or to reduce the rate of temperature increase. When the cooling capacity provided by the tap water is insufficient, cold water can be supplied by the phase change buffer tank module 2 as a supplement, i.e., preferably utilizing the natural energy resources provided by the tap water, with the energy stored in the phase change buffer tank module 2 serving as a supplement. At night, as the outside temperature drops, the temperature of the capillary thermal activation module 6 also drops. The capillary thermal activation module 6 can play a role in energy collection and transfer, achieving closed-loop energy control together with the energy-storing buffer tank. In addition, the different water supply temperatures set within the capillary tube can effectively improve the indoor thermal conditions and compensate for passive heat loss caused by the poor insulation performance of the original building envelope. Tap water is filtered before flowing into the capillary thermal activation module 6, and the water flowing out of the capillary thermal activation module 6 can enter the return water branch pipe 32 in the supply and return water branch pipe group.

[0037] Relying on natural heat and cold sources (solar collectors and tap water, etc.) not only enables the use of domestic hot and cold water, but it can also be combined with capillary thermal activation module 6 to realize the effective utilization of low-grade renewable energy.

[0038] like Figure 1 As shown, the individual household energy storage radiant air conditioning system also includes a fresh air handling unit module 9. The fresh air handling unit has a heat exchange and dehumidification section 91 and a supply air humidification section 92. The water inlet of the heat exchange and dehumidification section 91 is connected to the supply branch pipe 31 of one of the supply and return water branch pipe groups (in this embodiment, the same supply and return water branch pipe group connected to the capillary thermal activation module 6). The water outlet of the heat exchange and dehumidification section 91 is connected to the return water branch pipe 32 of the same supply and return water branch pipe group. The phase change buffer water tank module 2 supplies cold water to the heat exchange and dehumidification section 91 of the fresh air handling unit module 9 in summer to cool and dehumidify the air entering the room, and supplies hot water to the heat exchange and dehumidification section 91 of the fresh air handling unit module 9 in winter to heat the air entering the room. In addition, filtered tap water can be introduced into the air supply humidification section 92 of the fresh air unit module to replenish the humidifier. A rotating drum (not shown in the figure) inside the air supply humidification section 92 breaks the water into a mist, which mixes with the hot air supplied by the winter air supply duct to increase the humidity of the air entering the room. The tap water before entering the heat exchange dehumidification section 91 and the air supply humidification section 92 also needs to be filtered.

[0039] The above embodiments are merely exemplary embodiments of this utility model and are not intended to limit this utility model. The scope of protection of this utility model is defined by the claims. Various modifications or equivalent substitutions made by those skilled in the art within the spirit and scope of this utility model also fall within the scope of protection of this utility model.

Claims

1. A household-type energy storage radiant air conditioning system, characterized in that, include: The heat pump module includes a main water supply pipe and a main water return pipe; A phase change buffer water tank module includes a water tank, which has a water supply area and a water return area. The water supply area and the water return area are connected by a flow channel. Both the water supply area and the water return area are provided with phase change material encapsulation blocks. The main water supply pipe is connected to the water supply area, and the main water return pipe is connected to the water return area. A mixing water pump station module includes multiple supply and return water branch pipe groups. Each supply and return water branch pipe group includes a supply water branch pipe connected to the supply area and a return water branch pipe connected to the return water area. At least some of the supply and return water branch pipe groups are provided with a mixing valve and a mixing pipe. The mixing valve is located on the supply water branch pipe, and one end of the mixing pipe is connected to the mixing valve, while the other end is connected to the return water branch pipe in the supply and return water branch pipe group. Multiple radiating terminals, each radiating terminal having its inlet connected to the supply branch pipe of one of the supply and return branch pipe groups, and its outlet connected to the return branch pipe of the same supply and return branch pipe group. A capillary thermal activation module is installed on the exterior wall of the building. The inlet end of the capillary thermal activation module is connected to the supply branch pipe in one of the sets of supply and return water branch pipe groups, and the outlet end of the capillary thermal activation module is connected to the return branch pipe in the same set of supply and return water branch pipe groups.

2. The individual household energy storage radiant air conditioning system according to claim 1, characterized in that, The individual household energy storage radiant air conditioning system also includes a solar thermal collector module, which includes a solar thermal collector panel and a domestic hot water tank. The inlet of the capillary thermal activation module is connected to the outlet of the domestic hot water tank through a hot water pipe. The hot water pipe is equipped with a hot water valve, and the outlet of the capillary thermal activation module is connected to the inlet of the domestic hot water tank.

3. The individual household energy storage radiant air conditioning system according to claim 1, characterized in that, The water inlet of the capillary thermal activation module is also connected to a tap water pipe, which is equipped with a cold water valve to control whether water is supplied to the capillary thermal activation module.

4. The individual household energy storage radiant air conditioning system according to claim 1, characterized in that, The radiating end includes a first radiating end, which includes a water distribution device and a radiating plate.

5. The individual household energy storage radiant air conditioning system according to claim 1 or 4, characterized in that, The radiant terminal includes a second radiant terminal, which includes a manifold and underfloor heating coils.

6. The individual household energy storage radiant air conditioning system according to claim 3, characterized in that, The individual household energy storage radiant air conditioning system also includes a fresh air unit module. The fresh air unit is equipped with a heat exchange and dehumidification function section. The water inlet of the heat exchange and dehumidification function section is connected to the water supply branch pipe of one of the supply and return water branch pipe groups. The water outlet of the heat exchange and dehumidification function section is connected to the water supply branch pipe of the supply and return water branch pipe group.

7. The individual household energy storage radiant air conditioning system according to claim 6, characterized in that, The fresh air unit module also includes an air supply and humidification section, and the tap water pipe is connected to the air supply and humidification section.

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