Heat pump two-way water supply system

Abstract

The present invention discloses a heat pump dual water supply system, comprising a heat pump; a water tank; a first pipe having one end connected to the heat pump, the other end of the first pipe connected to one end of the water tank, the other end of the water tank connected to one end of a second pipe, the other end of the second pipe connected to a first heat exchange module; a first circulating pump having one end connected to the water tank, the other end of the first circulating pump connected to the heat pump; a third pipe having one end connected to the first heat exchange module, the other end of the third pipe connected to one end of a multifunctional tank, the other end of the multifunctional tank connected to one end of a second circulating pump, the other end of the second circulating pump connected to the first circulating pump via a fourth pipe; the fourth pipe connected to the water tank; one end of the second heat exchange module connected to the second pipe, the other end of the second heat exchange module connected to the multifunctional tank. The present invention reduces head loss in the water tank and effectively utilizes resources.

Description

Technical Field

[0001] The present invention relates to the technical field of heating, ventilation and air conditioning industry, and in particular to a heat pump dual water supply system. Background Art

[0002] At present, the "air source heat pump dual-generation system" refers to a water system household central air conditioning + floor heating system with an air source heat pump (hereinafter referred to as: heat pump) as the cold and heat source.

[0003] The working principle of the existing air source heat pump combined power generation system can be found in Figure 1 ,

[0004] In summer, the heat pump (1-1) cools the water in the water tank (1-2) to about 7 degrees Celsius through the first circulating water pump (1-3). The second circulating water pump (1-4) pumps the cold water in the water tank (1-2) to the fan coil units (1-5) in each room, and the fan coils blow out cold air to cool the rooms.

[0005] In winter, the heat pump (1-1) heats the water in the water tank (1-2) to about 40 degrees Celsius through the first circulating pump (1-3). The second circulating water pump (1-4) pumps the hot water in the water tank (1-2) to the floor heating coil (1-6) on the floor of the room. The floor heats up, and the room heats up. During this process, the water passes through the diaphragm expansion tank (1-7), which plays a role in maintaining a constant system pressure (that is, the volume of the hot water expands, and the excess is absorbed by the diaphragm expansion tank).

[0006] In the above working process, since the first circulation pump needs to return to the heat pump through the water tank when returning water, the excess head is lost in the water tank and resources cannot be effectively utilized. Summary of the Invention

[0007] In order to overcome the shortcomings of the existing technology, the purpose of the present invention is to provide a heat pump two-way water supply system, in which the first circulating water pump and the second circulating water pump are changed to a direct series connection. The first circulating water pump and the second circulating water pump can directly return water to the heat pump, reducing the head loss in the water tank and effectively utilizing resources.

[0008] The purpose of the present invention is achieved by the following technical solutions:

[0009] Heat pump two-way water supply system, including:

[0010] heat pumps;

[0011] water tank;

[0012] A first piping assembly includes a first circulation pump, a first pipe, a second pipe, and a first heat exchange module, wherein one end of the first pipe is connected to the heat pump, the other end of the first pipe is connected to one end of the water tank, the other end of the water tank is connected to one end of the second pipe, and the other end of the second pipe is connected to the first heat exchange module; one end of the first circulation pump is connected to the water tank, and the other end of the first circulation pump is connected to the heat pump;

[0013] The second pipeline assembly includes a second circulation pump, a third pipe, a multi-function tank and a second heat exchange module. One end of the third pipe is connected to the first heat exchange module, the other end of the third pipe is connected to one end of the multi-function tank, the other end of the multi-function tank is connected to one end of the second circulation pump, and the other end of the second circulation pump is connected to the first circulation pump through a fourth pipe; the fourth pipe is connected to the water tank; one end of the second heat exchange module is connected to the second pipe, and the other end of the second heat exchange module is connected to the multi-function tank; the multi-function tank is used to store water and discharge air in the water.

[0014] Furthermore, the multifunctional tank is provided with a water inlet pipe and an exhaust pipe, one end of the water inlet pipe is inserted into the multifunctional tank, and the other end of the water inlet pipe is connected to the third pipe; one end of the exhaust pipe extends out of the multifunctional tank, and the other end of the exhaust pipe is inserted into the multifunctional tank; the end of the exhaust pipe inserted into the multifunctional tank is higher than the end of the water inlet pipe inserted into the multifunctional tank.

[0015] Furthermore, an exhaust valve is provided at the end of the exhaust pipe extending out of the multifunctional tank.

[0016] Furthermore, the fourth pipeline is connected to the water tank through a bypass pipe.

[0017] Furthermore, the heat pump dual water supply system also includes an installation box, and the water tank, the multi-function tank, the first circulation pump and the second circulation pump are all installed in the installation box.

[0018] Furthermore, the first circulation pump and the second circulation pump are located on the same side of the water tank.

[0019] Furthermore, a heating component is provided in the water tank.

[0020] Furthermore, the first heat exchange module is a fan coil unit, and the second heat exchange module is a floor heating coil unit.

[0021] Furthermore, there are multiple fan coil units, and the multiple fan coil units are connected to the second pipeline through multiple first branch pipes respectively; a first electric valve is provided on the first branch pipe.

[0022] Furthermore, the second heat exchange module is connected to the second pipeline through a second branch pipe; a second electric valve is provided on the second branch pipe.

[0023] Compared with the existing technology, the beneficial effect of the present invention is that the first circulating water pump and the second circulating water pump are changed to a direct series connection, and the first circulating water pump and the second circulating water pump can directly return water to the heat pump, reducing the head loss in the water tank and effectively utilizing resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of an air source heat pump combined heat supply system in the prior art;

[0025] Figure 2 It is a structural schematic diagram of the heat pump dual water supply system of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the multifunctional tank of the present invention.

[0027] In the figure: 10, heat pump; 20, water tank; 21, bypass pipe; 30, first pipeline; 40, second pipeline; 50, first circulating water pump; 60, second circulating water pump; 70, multi-function tank; 71, water inlet pipe; 72, exhaust pipe; 721, exhaust valve; 80, first heat exchange module; 81, first branch pipe; 90, second heat exchange module; 91, second branch pipe; 100, installation box. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0029] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the present invention.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0031] like Figure 2 as well as Figure 3 The heat pump dual water supply system shown includes a heat pump 10, a water tank 20, a first pipe assembly and a second pipe assembly.

[0032] Specifically, the first pipeline assembly includes a first circulation pump, a first pipe 30, a second pipe 40 and a first heat exchange module 80. When assembling the pipeline, one end of the first pipe 30 is connected to the heat pump 10, and the other end of the first pipe 30 is connected to one end of the above-mentioned water tank 20, and the other end of the water tank 20 is connected to one end of the second pipe 40, and the other end of the second pipe is connected to the first heat exchange module 80, one end of the above-mentioned first circulation pump is connected to the water tank 20, and the other end of the first circulation pump is connected to the heat pump 10.

[0033] In addition, the second pipeline assembly includes a second circulation pump, a third pipe, a multi-function tank 70 and a second heat exchange module 90. One end of the third pipe is connected to the first heat exchange module 80, the other end of the third pipe is connected to one end of the multi-function tank 70, the other end of the multi-function tank 70 is connected to one end of the second circulation pump, and the other end of the second circulation pump is connected to the first circulation pump through a fourth pipe; the fourth pipe is connected to the water tank 20; one end of the second heat exchange module 90 is connected to the second pipe 40, and the other end of the second heat exchange module 90 is connected to the multi-function tank 70; the multi-function tank 70 can be used to store water and discharge air in the water.

[0034] Based on the above structure, when using the heat pump water supply system of the utility model,

[0035] When used in summer, the first circulating water pump 50 can directly pump the water in the water tank 20 into the heat pump 10. The heat pump 10 can cool the water. The cooled water flows through the first pipe 30 into the water tank 20, and then is led out to the first heat exchange module 80 through the second pipe 40. The cold water in the first heat exchange module 80 exchanges heat with the air in the room to achieve cooling.

[0036] When used in winter, the first circulation pump can pump the water in the water tank 20 directly into the heat pump 10. The heat pump 10 heats the water. The hot water passes through the water tank 20 and is guided to the second heat exchange module 90 through the third pipe. The hot water in the second heat exchange module 90 exchanges heat with the air in the room to achieve heating.

[0037] It should be noted that when water is returned from the first heat exchange module 80 or the second heat exchange module 90, the second circulation pump and the first circulation pump are started, and the water from the first heat exchange module 80 can be guided to the multi-function tank 70 through the third pipe, and the water from the second heat exchange module 90 can also be guided to the multi-function tank 70, and directly pumped into the water tank 20 for recycling through the second circulation water pump 60, thereby realizing water circulation. Since hot water will expand in volume, the excess part can be absorbed by the multi-function tank 70, and the steam will be discharged to balance the pressure of the entire circulating water circuit.

[0038] When reheating or cooling is needed again, the water of the second circulating water pump 60 can be guided to the first circulating water pump 50 through the fourth pipe and pumped into the heat pump 10, thereby reducing the head loss in the water tank 20 and effectively utilizing resources.

[0039] Specifically, the multi-function tank 70 in this embodiment is provided with a water inlet pipe 71 and an exhaust pipe 72. One end of the water inlet pipe 71 is inserted into the multi-function tank 70, and the other end of the water inlet pipe 71 is connected to the third pipe. Furthermore, one end of the exhaust pipe 72 extends out of the multi-function tank 70, while the other end of the exhaust pipe 72 is inserted into the multi-function tank 70. The end of the exhaust pipe 72 inserted into the multi-function tank 70 is higher than the end of the water inlet pipe 71 inserted into the multi-function tank 70.

[0040] Based on this structure, when hot water returns, the water in the third pipe or the second heat exchange module 90 can be directly introduced into the multi-function tank 70 through the water inlet pipe 71, and the air in the water will automatically float to the part of the multi-function tank 70 that is not filled with water. When the amount of air exceeds the bottom of the exhaust pipe 72, it will be discharged through the exhaust pipe 72. Since the end of the exhaust pipe 72 is higher than the end of the water inlet pipe 71, the exhaust height is always higher than the water surface height, which facilitates smooth exhaust.

[0041] It should be noted that during specific operation, since the multi-function tank 70 only absorbs the volume expansion of hot water during the working process, the multi-function tank 70 will not be filled, and a certain amount of air will always remain above the inside of the multi-function tank 70 for smooth exhaust.

[0042] Furthermore, an exhaust valve 721 is provided at the end of the exhaust pipe extending out of the multifunctional tank 70. The exhaust valve 721 can be opened or closed to perform exhaust operations. Of course, the exhaust valve 721 only exhausts air and does not drain water.

[0043] Furthermore, the fourth pipeline is connected to the water tank 20 through the bypass pipe 21 , that is, when the second circulating water pump 60 pumps the return water into the water tank 20 , the return water can be guided into the water tank 20 through the bypass pipe 21 .

[0044] Furthermore, the two-way water supply system of the heat pump 10 also includes an installation box 100, in which the water tank 20, the multi-function tank 70, the first circulating pump and the second circulating pump are all installed. On the basis that the second circulating water pump 60 is connected to the water tank 20 through the bypass pipe 21, the water tank 20, the multi-function tank 70, the first circulating water pump 50, the second circulating water pump 60, the fourth pipeline and the bypass pipe 21 can all be installed in the installation box 100 and integrated in a metal box. During assembly, the installation box 100 can be directly hung on the wall, which occupies a small area and is easy to assemble.

[0045] Of course, the installation box 100 can be mounted on the wall by means of bolts and connecting pieces, which is convenient for assembly and disassembly and easy for maintenance.

[0046] Furthermore, the first circulation pump and the second circulation pump are located on the same side of the water tank 20, that is, when the second circulation pump and the first circulation pump return water at the same time, the flow path of the water channel is relatively small, and there is no need to bypass the water tank 20, thereby reducing energy consumption of the water channel.

[0047] Furthermore, a heating component can be provided in the water tank 20, which can assist the heat pump 10 in heating the water. That is, when the hot water returns, the heating component assists in heating the water in the water tank 20, further reducing energy consumption and achieving a faster heating effect.

[0048] Of course, the above-mentioned heating component can be realized by using a heating resistor or other structures in the prior art.

[0049] Furthermore, in this embodiment, the first heat exchange module 80 is a fan coil unit, and the second heat exchange module 90 is a floor heating coil unit. That is, during cooling, the fan coil unit can accelerate the heat exchange between cold water and air, providing rapid cooling. Similarly, during heating, the floor heating coil unit can accelerate the heat exchange between hot water and air, providing rapid heating.

[0050] Specifically, there are multiple fan coil units, and the multiple fan coil units are connected to the second pipe 40 through multiple first branches 81 respectively. In this way, the cold water in the second pipe 40 can flow into the multiple fan coil units through the multiple first branches 81, and the cooling efficiency is higher.

[0051] Furthermore, a first electric valve can be provided on the first branch pipe 81, and the first electric valve can be opened or closed according to the needs of heating or cooling. That is, when cooling is required, the first electric valve is opened, and the water in the second pipe 40 can be introduced into the fan coil through the first branch; when heating is in operation, the first electric valve is closed, and the water in the second pipe 40 can flow into the floor heating coil to realize heating operation.

[0052] Of course, the above-mentioned second heat exchange module 90 is connected to the second pipe 40 through the second branch pipe 91; a second electric valve is provided on the second branch pipe 91, that is, when cooling is required, the first electric valve is opened and the second electric valve is closed, and the water in the second pipe 40 can be introduced into the fan coil through the first branch. During heating operation, the first electric valve is closed and the second electric valve is opened, and the water in the second pipe 40 can flow into the floor heating coil through the second branch pipe 91 to realize heating operation.

[0053] It should be noted that the first electric valve and the second electric valve may be provided with corresponding thermostats, which can detect the indoor temperature and control the opening and closing of the corresponding first electric valve and the second electric valve.

[0054] Those skilled in the art can make various other corresponding changes and deformations based on the technical solutions and concepts described above, and all of these changes and deformations should fall within the scope of protection of the claims of the present invention.

Claims

1. Heat pump two-way water supply system, characterized by: include, heat pumps; water tank; A first piping assembly includes a first circulation pump, a first pipe, a second pipe, and a first heat exchange module, wherein one end of the first pipe is connected to the heat pump, the other end of the first pipe is connected to one end of the water tank, the other end of the water tank is connected to one end of the second pipe, and the other end of the second pipe is connected to the first heat exchange module; one end of the first circulation pump is connected to the water tank, and the other end of the first circulation pump is connected to the heat pump; The second pipeline assembly includes a second circulation pump, a third pipeline, a multi-function tank and a second heat exchange module, one end of the third pipeline is connected to the first heat exchange module, the other end of the third pipeline is connected to one end of the multi-function tank, the other end of the multi-function tank is connected to one end of the second circulation pump, and the other end of the second circulation pump is connected to the first circulation pump through a fourth pipeline; the fourth pipeline is connected to the water tank; one end of the second heat exchange module is connected to the second pipeline, and the other end of the second heat exchange module is connected to the multi-function tank; the multi-function tank is used to store water and discharge air in the water; the multi-function tank is provided with a water inlet pipe and an exhaust pipe, one end of the water inlet pipe is inserted into the multi-function tank, and the other end of the water inlet pipe is connected to the third pipeline; one end of the exhaust pipe extends out of the multi-function tank, and the other end of the exhaust pipe is inserted into the multi-function tank; the end of the exhaust pipe inserted into the multi-function tank is higher than the end of the water inlet pipe inserted into the multi-function tank.

2. The heat pump dual water supply system according to claim 1, characterized in that: The end of the exhaust pipe extending out of the multifunctional tank is provided with an exhaust valve.

3. The heat pump dual water supply system according to claim 1, characterized in that: The fourth pipeline is connected to the water tank through a bypass pipe.

4. The heat pump dual water supply system according to any one of claims 1 to 3, characterized in that: The heat pump dual water supply system also includes an installation box, in which the water tank, the multifunctional tank, the first circulation pump and the second circulation pump are all installed.

5. The heat pump dual water supply system according to claim 4, characterized in that: The first circulation pump and the second circulation pump are located on the same side of the water tank.

6. The heat pump dual water supply system according to any one of claims 1 to 3, characterized in that: A heating component is arranged in the water tank.

7. The heat pump dual water supply system according to any one of claims 1 to 3, characterized in that: The first heat exchange module is a fan coil unit, and the second heat exchange module is a floor heating coil unit.

8. The heat pump dual water supply system according to claim 7, characterized in that: There are multiple fan coil units, and the multiple fan coil units are connected to the second pipeline through multiple first branch pipes respectively; a first electric valve is provided on the first branch pipe.

9. The heat pump dual water supply system according to any one of claims 1 to 3, characterized in that: The second heat exchange module is connected to the second pipeline through a second branch pipe; a second electric valve is provided on the second branch pipe.

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