Combined water supply power module and multi-energy hot water system

Abstract

The utility model belongs to the technical field of combined application of heat pumps, and discloses a combined water supply power module and a multi-energy hot water system, the combined water supply power module comprises a water return pipeline, a shunt pipeline and a hot water pipeline, and a water inlet and a water outlet of the water return pipeline are respectively connected with a water outlet of a water using end and a water return port of a heat pump; a first water pipe, a second water pipe, a third water pipe and a fourth water pipe are arranged on the shunting pipeline at intervals; a fifth water pipe, a sixth water pipe and a seventh water pipe are arranged on the hot water pipeline at intervals; the fifth water pipe is connected with the second water pipe. When the heat pump and the hot water equipment operate simultaneously, hot water of the heat pump enters the shunting pipeline through the third water pipe and is shunted at the joint of the first water pipe and the shunting pipeline, and part of the hot water enters the hot water equipment through the first water pipe for secondary heating, so that the decoupling effect is achieved, and the water temperature fluctuation of the water using end is reduced.

Description

Technical Field

[0001] This utility model relates to the field of combined application technology of heat pumps, and in particular to a combined hydraulic module and a multi-energy hot water system. Background Technology

[0002] A heat pump is a highly efficient and energy-saving device that fully utilizes low-grade heat energy. It can provide a large amount of heat with only a small amount of net reverse circulation work, resulting in low operating costs and thus broad application prospects in energy conservation applications. However, the use of heat pumps is greatly affected by temperature. For example, in winter, the heating efficiency and effect of heat pumps will decrease. Therefore, existing technologies combine heat pumps with other hot water equipment (such as gas water heaters) to form a combined water supply system. The combined water supply system can enable heat pumps and hot water equipment to provide heating or hot water independently, or it can enable them to provide heating or hot water in synergy.

[0003] When a heat pump and a hot water system work together to provide heating or hot water, the heat pump's water circuit is usually connected in series with the hot water system's water circuit. Since the power of the heat pump's motor is greater than that of the hot water system's motor, the heat pump's water flow rate is greater than that of the hot water system. When the heat pump and the hot water system start simultaneously, a water circuit coupling phenomenon occurs, which can cause significant damage to the pump body and easily lead to fluctuating water flow rates into the hot water system. This results in large fluctuations in the outlet water temperature of the hot water system, affecting the user experience. When the water usage mode is switched at the user end, changes in air and flow rate occur. Changes in the water flow rate on the user side can also cause large fluctuations in the water flow rate on the equipment side, resulting in poor water flow stability. Utility Model Content

[0004] One of the technical problems solved by this utility model is to provide a combined heating and water supply module that can effectively solve the coupling problem that occurs when heat pumps and hot water equipment work together for heating or heat supply.

[0005] The second technical problem solved by this utility model is to provide a multi-energy hot water system that can effectively solve the coupling problem caused by the coordinated heating or hot water supply of heat pumps and hot water equipment, as well as the problem of the stability of water flow on the equipment side affected by changes in the flow rate on the water side.

[0006] The first technical problem mentioned above is solved by the following technical solution:

[0007] A combined water supply module is installed between the heat pump and the hot water equipment to achieve combined water supply to the water user; the combined water supply module includes:

[0008] A return water pipe, wherein the inlet of the return water pipe is connected to the outlet of the water-using end, and the outlet of the return water pipe is used to connect to the return water port of the heat pump;

[0009] The diversion pipe is provided with a first water pipe, a second water pipe, a third water pipe and a fourth water pipe that are connected to itself at intervals. The first water pipe can switch between the return water port of the hot water equipment and the outlet of the water user. The third water pipe is connected to the outlet of the heat pump and the fourth water pipe is connected to the inlet of the water user.

[0010] A hot water pipe is provided with a fifth water pipe, a sixth water pipe and a seventh water pipe spaced apart on the hot water pipe. The fifth water pipe is connected to the second water pipe, the sixth water pipe is connected to the outlet of the hot water equipment, and the seventh water pipe is connected to the inlet of the water user.

[0011] Compared with the prior art, the combined power supply hydraulic module of this utility model has the following advantages:

[0012] This utility model's combined heating and water supply module, when the heat pump and hot water equipment operate simultaneously to provide coordinated heating and hot water supply to the user end, the hot water from the heat pump outlet enters the distribution pipe through the third water pipe. At the connection between the first water pipe and the distribution pipe, the hot water is split. A portion flows out through the first water pipe and enters the hot water equipment for secondary heating, while the other portion merges with the hot water flowing from the hot water equipment outlet at the connection between the second water pipe and the distribution pipe, or at the connection between the sixth water pipe and the hot water pipe, and then flows out through the fourth or seventh water pipe to the user end. Because the hot water from the heat pump outlet is split at the connection between the first water pipe and the distribution pipe, some water does not enter the hot water equipment for secondary heating. This makes the water flow through the hot water equipment similar to the water flow when the power pump of the hot water equipment is working, thus achieving decoupling and effectively reducing damage to the power pump. Simultaneously, the split hot water eventually remixes with the hot water from the hot water equipment outlet, resulting in a stable water temperature entering the user end, effectively reducing water temperature fluctuations at the user end and improving the user's water experience.

[0013] In one embodiment, the combined hydraulic power module further includes:

[0014] The first three-way valve has its A1 and B1 ports connected to the inlet of the return water pipe. The A1 and B1 ports of the first three-way valve are respectively equipped with an eighth water pipe and a ninth water pipe, and both the eighth water pipe and the ninth water pipe are connected to the outlet of the water-using end.

[0015] In one embodiment, the combined hydraulic power module further includes:

[0016] The second three-way valve has its A2 port connected to the first water pipe, its B2 port equipped with a tenth water pipe for connecting to the outlet of the water-using end, and its A2B2 ports equipped with an eleventh water pipe for connecting to the return water outlet of the hot water equipment.

[0017] In one embodiment, the combined hydraulic power module further includes:

[0018] The third three-way valve, with its A3 port and A3B3 port located on the eleventh water pipe, and its B3 port connected to the eighth water pipe.

[0019] The second technical problem mentioned above is solved by the following technical solution:

[0020] Multi-energy hot water systems include:

[0021] The combined water supply module;

[0022] A heat pump, wherein the outlet of the heat pump is connected to a third water pipe, and the return outlet of the heat pump (2) is connected to the outlet of the return water pipe;

[0023] A hot water device, wherein the outlet of the hot water device is connected to a sixth water pipe, and the return outlet of the hot water device (3) is connected to a first water pipe;

[0024] The water-using end has its inlet connected to the fourth water pipe and the seventh water pipe, and its outlet connected to the inlet of the return water pipe.

[0025] Compared with the prior art, the multi-energy hot water system of this utility model has the following advantages:

[0026] This utility model's multi-energy hot water system includes a combined water supply module. Through this module, the hot water supplied by the heat pump outlet can be split at the connection between the branch pipe and the first water pipe, and then merge with the hot water supplied by the hot water outlet of the hot water equipment at the connection between the second water pipe and the branch pipe, or at the connection between the sixth water pipe and the hot water pipe. After merging, the hot water enters the water-using end through the fourth water pipe or the seventh water pipe. This solves the water circuit coupling problem caused by the flow difference when the heat pump and the hot water equipment are running simultaneously, which helps to reduce water temperature fluctuations and improve the water use stability of the multi-energy hot water system.

[0027] In one embodiment, the water-using end includes:

[0028] A hot water supply device, comprising a water tank, wherein the inlet of the water tank is connected to the seventh water pipe, and the outlet of the water tank is connected to the ninth water pipe.

[0029] A heating device, wherein the inlet of the heating device is connected to the fourth water pipe, and the outlet of the heating device is connected to the eighth water pipe.

[0030] In one embodiment, the multi-energy hot water system further includes a buffer tank, which is connected between the heating device and the combined water supply module. The first inlet and the first outlet of the buffer tank are respectively connected to the fourth water pipe and the eighth water pipe, and the second outlet and the second inlet of the buffer tank are respectively connected to the inlet and outlet of the heating device.

[0031] In one embodiment, the water supply end further includes a cooling device, the inlet and outlet of which are respectively connected to the second outlet and the second inlet of the buffer tank.

[0032] In one embodiment, a fourth three-way valve is provided between the outlet of the cooling device, the outlet of the heating device, and the second inlet of the buffer tank.

[0033] In one embodiment, a self-regulating differential pressure bypass valve and a water pump are provided between the second outlet and the second inlet of the buffer tank. Attached Figure Description

[0034] Figure 1 This is a structural schematic diagram of the combined water supply module of this utility model;

[0035] Figure 2 This is a schematic diagram of the water circuit connection structure of the combined heating module of this utility model in the combined heating mode of heat pump and hot water equipment;

[0036] Figure 3 This is a schematic diagram of the water circuit connection structure of the combined heat pump and hot water equipment in the combined hot water supply mode of the combined water supply module of this utility model;

[0037] Figure 4 This is a schematic diagram of the water circuit connection structure of the heat pump heating / cooling mode of the multi-energy hot water system of this utility model.

[0038] Figure 5 This is a schematic diagram of the water circuit connection structure of the heat pump-only hot water supply mode of the multi-energy hot water system of this utility model.

[0039] Figure 6 A schematic diagram of the water circuit connection structure for the independent hot water supply of the hot water equipment in the multi-energy hot water system of this utility model;

[0040] Figure 7 This is a schematic diagram of the water circuit connection structure for the independent heating of the hot water equipment in the multi-energy hot water system of this utility model;

[0041] Figure 8 This is a schematic diagram of the water circuit connection structure for the hot water supply equipment of the multi-energy hot water system of this utility model, which combines hot water supply with heat pump cooling / heating.

[0042] Label Explanation:

[0043] 1. Combined water supply module; 11. Return water pipe; 12. Diversion pipe; 121. First water pipe; 122. Second water pipe; 123. Third water pipe; 124. Fourth water pipe; 13. Hot water pipe; 131. Fifth water pipe; 132. Sixth water pipe; 133. Seventh water pipe; 14. Automatic air vent valve; 15. First three-way valve; 151. Eighth water pipe; 152. Ninth water pipe; 16. Second three-way valve; 161. Tenth water pipe; 162. Eleventh water pipe; 17. Third three-way valve;

[0044] 2. Heat pump; 3. Hot water equipment; 4. Water supply end; 41. Hot water supply device; 42. Heating device; 43. Cooling device; 44. Buffer tank; 45. Fourth three-way valve; 46. Self-operated differential pressure bypass valve; 47. Water pump. Detailed Implementation

[0045] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0046] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0047] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0048] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0049] Combination Figures 1-3 This utility model embodiment provides a combined water supply module 1, which is located between a heat pump 2 and a hot water device 3 to achieve combined water supply to the water-using end 4. It includes working modes such as heat pump 2 and hot water device 3 working together to provide heating and hot water, as well as separate heating, separate hot water and separate cooling.

[0050] The combined water supply module 1 includes a return water pipe 11, a branch pipe 12, and a hot water pipe 13. The inlet of the return water pipe 11 is connected to the outlet of the water-using terminal 4, and the outlet of the return water pipe 11 is connected to the return water inlet of the heat pump 2. An automatic air vent valve 14 is installed on the return water pipe 11. The branch pipe 12 is provided with a first water pipe 121, a second water pipe 122, a third water pipe 123, and a fourth water pipe 124 that are connected to itself at intervals. The first water pipe 121 can switch between connecting to the return water inlet of the hot water equipment 3 and the outlet of the water-using terminal 4. The third water pipe 123 is connected to the outlet of the heat pump 2, and the fourth water pipe 124 is connected to the inlet of the water-using terminal 4. The hot water pipe 13 is provided with a fifth water pipe 131, a sixth water pipe 132, and a seventh water pipe 133 at intervals. The fifth water pipe 131 is connected to the second water pipe 122, the sixth water pipe 132 is connected to the outlet of the hot water equipment 3, and the seventh water pipe 133 is connected to the inlet of the water-using terminal 4.

[0051] The combined water supply module 1, heat pump 2, and hot water equipment 3 of this utility model can operate independently to achieve separate heating and hot water supply modes. Simultaneously, heat pump 2 also has a separate cooling mode, thus meeting the water demand of the multi-functional water-using terminal 4. When heat pump 2 and hot water equipment 3 operate simultaneously to provide coordinated heating and hot water supply to the water-using terminal 4, the hot water from the outlet of heat pump 2 enters the diversion pipe 12 through the third water pipe 123. At the connection between the first water pipe 121 and the diversion pipe 12, a portion flows out through the first water pipe 121 and enters the hot water equipment 3 for secondary heating. The other portion merges with the hot water flowing from the outlet of the hot water equipment 3 at the connection between the second water pipe 122 and the diversion pipe 12, or at the connection between the sixth water pipe 132 and the hot water pipe 13, and then flows through the fourth water pipe 124 or the seventh water pipe 133. The hot water from the outlet of heat pump 2 is diverted at the connection between the first water pipe 121 and the diversion pipe 12, so that some water does not enter the hot water equipment 3 for secondary heating. This makes the water flow through the hot water equipment 3 similar to the water flow when the built-in power pump of the hot water equipment 3 is working, thus achieving decoupling and effectively reducing damage to the power pump. At the same time, the diverted hot water is eventually remixed with the hot water from the outlet of the hot water equipment 3, so that the hot water temperature entering the water end 4 is stable, which can effectively reduce the water temperature fluctuation at the water end 4 and improve the user's water experience.

[0052] Specifically, such as Figure 2 The diagram shows the working mode of heat pump 2 and hot water equipment 3 working together for heating. In this mode, the hot water from the outlet of heat pump 2 first enters the diversion pipe 12 through the third water pipe 123, and is diverted at the connection between the first water pipe 121 and the diversion pipe 12. After diversion, part of the hot water flows through the first water pipe 121 and the eleventh water pipe 162 to the return port of hot water equipment 3 for secondary heating. The hot water after secondary heating enters the hot water pipe 13 through the sixth water pipe 132 and flows back to the diversion pipe 12 through the fifth water pipe 131 and the second water pipe 122. At the connection between the second water pipe 122 and the diversion pipe 12, it merges with another part of the hot water diverted from heat pump 2. After merging, it flows out from the fourth water pipe 124 and supplies the heating device 42 at the water end 4 for heating. The outlet of the heating device 42 is connected to the eighth water pipe 151 to achieve return circulation.

[0053] like Figure 3The diagram illustrates the collaborative hot water supply mode of heat pump 2 and hot water equipment 3. Hot water from the outlet of heat pump 2 first enters the branch pipe 12 through the third water pipe 123, and is then branched at the connection between the first water pipe 121 and the branch pipe 12. Part of the branched hot water flows through the first water pipe 121 and the eleventh water pipe 162 to the return port of hot water equipment 3 for secondary heating. The secondary-heated hot water then enters the hot water pipe 13 through the sixth water pipe 132. The remaining portion of hot water branched from heat pump 2 flows into the hot water pipe 13 through the second water pipe 122 and the fifth water pipe 131, converging at the connection between the sixth water pipe 132 and the hot water pipe 13. The converging hot water then flows out through the seventh water pipe 133 to supply hot water to the hot water supply device 41 at the water-using end 4. The outlet of the hot water supply device 41 is connected to the ninth water pipe 152 to achieve a return circulation. In this embodiment, the hot water supply device 41 includes a water tank and other water storage devices; other devices with water storage functions are also included.

[0054] It should be noted that the heating and hot water supply modes provided in this embodiment of the present invention are both heat exchange heating and hot water supply modes. It can be understood that the combined heating and hot water supply hydraulic module 1 provided in this embodiment of the present invention realizes coordinated diversion and convergence control in the coordinated heating and hot water supply modes of the heat pump 2 and the hot water equipment 3, thereby achieving a decoupling effect and effectively reducing damage to the power pump.

[0055] In one embodiment, the combined water supply module 1 further includes a first three-way valve 15. The A1B1 port of the first three-way valve 15 is connected to the inlet of the return water pipe 11. The A1 port and B1 port of the first three-way valve 15 are respectively provided with an eighth water pipe 151 and a ninth water pipe 152. The eighth water pipe 151 and the ninth water pipe 152 are both connected to the outlet of the water supply end 4. The automatic air vent valve 14 is set between the A1B1 port of the first three-way valve 15 and the inlet of the return water pipe 11.

[0056] like Figure 1As shown, the function of the first three-way valve 15 is to switch the connection between the outlet of the hot water supply device 41 and the outlet of the heating device 42. When the heat pump 2 and the hot water equipment 3 are used for heating, the A1 port and A1B1 port of the first three-way valve 15 are connected, and the B1 port and A1B1 port are disconnected. The outlet of the heating device 42 is connected to the inlet of the return water pipe 11 through the eighth water pipe 151 to realize the return water of the heat pump 2. When the heat pump 2 and the hot water equipment 3 are used for hot water supply, the B1 port and A1B1 port of the first three-way valve 15 are connected, and the A1 port and A1B1 port are disconnected. The outlet of the hot water supply device 41 is connected to the inlet of the return water pipe 11 through the ninth water pipe 152 to realize the return water of the heat pump 2. By setting independent return water switching pipelines for the hot water supply device 41 and the heating device 42, it is easy to realize the combined heating or combined hot water supply of the heat pump 2 and the hot water equipment 3. When the water supply end 4 includes the cooling device 43, it is easy to realize the working mode of the heat pump 2 supplying cooling / heating and the hot water equipment 3 supplying hot water independently, so as to meet the different needs of users and make the function settings more flexible.

[0057] In one embodiment, the combined water supply module 1 further includes a second three-way valve 16. The A2 port of the second three-way valve 16 is connected to the first water pipe 121. The B2 port and A2B2 port of the second three-way valve 16 are respectively provided with a tenth water pipe 161 and an eleventh water pipe 162 to switch between the outlet of the water-using end 4 and the return port of the hot water equipment 3.

[0058] like Figures 1-3 As shown, when heat pump 2 and hot water equipment 3 are used together for heating and hot water supply, ports A2 and A2B2 of the second three-way valve 16 are open, while ports B2 and A2B2 are closed. This allows hot water from heat pump 2 to enter hot water equipment 3 for secondary heating, thus connecting the water circuits of the hot water from heat pump 2 and hot water from hot water equipment 3 in series for coordinated heating and hot water supply. Simultaneously, it also facilitates water circuit control for heat pump 2 to supply heating / cooling or hot water independently. When ports B2 and A2B2 of the second three-way valve 16 are open, while ports A2 and A2B2 are closed, it allows hot water equipment 3 to supply heating or hot water independently, meeting diverse user water needs.

[0059] In one embodiment, the combined water supply module 1 further includes a third three-way valve 17, with its A3 port and A3B3 port located on the eleventh water pipe 162, and its B3 port connected to the eighth water pipe 151.

[0060] like Figures 1-3As shown, when the hot water device 3 is in operation, ports A3 and A3B3 of the third three-way valve 17 are open, while ports B3 and A3B3 are closed. This allows the hot water device 3 to supply hot water independently, as well as to operate in a combined heating and hot water supply mode with the heat pump 2. When ports A3 and A3B3 of the third three-way valve 17 are closed, and ports B3 and A3B3 are open, the outlet of the heating device 42 at the water end 4 is connected to the return outlet of the hot water device 3, thus enabling the hot water device 3 to operate in a separate heating mode.

[0061] Based on the aforementioned combined water supply module 1, this embodiment of the invention also provides a multi-energy hot water system, such as... Figure 2 and Figure 3 As shown, the multi-energy hot water system includes a combined hydraulic module 1, a heat pump 2, a hot water device 3, and a water-using terminal 4. The outlet of the heat pump 2 is connected to the third water pipe 123, and the return outlet of the heat pump 2 is connected to the outlet of the return water pipe 11. The outlet of the hot water device 3 is connected to the sixth water pipe 132, and the return outlet of the hot water device 3 is connected to the first water pipe 121. The inlet of the water-using terminal 4 is switched between the fourth water pipe 124 and the seventh water pipe 133, and the outlet of the water-using terminal 4 is connected to the inlet of the return water pipe 11.

[0062] The multi-energy hot water system of this utility model includes a combined water supply module 1. Through this combined water supply module 1, the hot water provided by the outlet of the heat pump 2 can be split at the connection between the split pipe 12 and the first water pipe 121, and then merge with the hot water provided by the outlet of the hot water equipment 3 at the connection between the second water pipe 122 and the split pipe 12, or merge at the connection between the sixth water pipe 132 and the hot water pipe 13. After merging, it enters the water consumption terminal 4 through the fourth water pipe 124, or through the seventh water pipe 133. This solves the water circuit coupling problem caused by the flow difference when the heat pump 2 and the hot water equipment 3 are running simultaneously, which helps to reduce water temperature fluctuations and improve the water consumption stability of the multi-energy hot water system.

[0063] In one embodiment, the water supply terminal 4 includes a hot water supply device 41 and a heating device 42. The inlet of the hot water supply device 41 is connected to the seventh water pipe 133, and the outlet of the hot water supply device 41 is connected to the ninth water pipe 152. The inlet of the heating device 42 is connected to the fourth water pipe 124, and the outlet of the heating device 42 is connected to the eighth water pipe 151.

[0064] like Figures 1-3In this embodiment, the water supply terminal 4 includes a hot water supply device 41 and a heating device 42. When the heat pump 2 and the hot water equipment 3 are used for heating, the hot water from the heat pump 2 is split at the connection between the first water pipe 121 and the branch pipe 12. The split portion merges with the hot water from the hot water equipment 3 at the connection between the second water pipe 122 and the branch pipe 12. After merging, the hot water flows directly out through the fourth water pipe 124 and is supplied to the heating device 42, thus achieving decoupling. The heating device 42 also has a stable water temperature. When the heat pump 2 and the hot water equipment 3 are used for hot water supply, the hot water from the heat pump 2 is split at the connection between the first water pipe 121 and the branch pipe 12. The split portion enters the hot water pipe 13 through the second water pipe 122 and the fifth water pipe 131, and merges with the hot water from the hot water equipment 3 at the connection between the sixth water pipe 132 and the hot water pipe 13. After merging, the hot water flows directly out through the seventh water pipe 133 and is supplied to the hot water supply device 41. Decoupling is achieved through splitting, and the hot water supply device 41 also has a stable water temperature. In this embodiment, by setting up independent heating and hot water supply branch and convergence pipelines, it is easy to realize the joint heating and hot water supply of heat pump 2 and hot water equipment 3. At the same time, by controlling the pipelines, it is also possible to realize the independent working mode of heat pump 2 and independent working mode of hot water equipment 3, so as to provide multi-functional water supply needs.

[0065] In one embodiment, the multi-energy hot water system further includes a buffer tank 44, which is connected between the heating device 42 and the combined water supply module 1. The first inlet and the first outlet of the buffer tank 44 are respectively connected to the fourth water pipe 124 and the eighth water pipe 151, and the second outlet and the second inlet of the buffer tank 44 are respectively connected to the inlet and outlet of the heating device 42.

[0066] like Figure 2 and Figure 3 As shown, in this embodiment, a buffer tank 44 is installed between the heating device 42 and the combined heating and cooling hydraulic module 1, which serves to isolate the water supply side from the water consumption side. When the water flow rates on both sides are inconsistent, the buffer tank 44 can ensure the stability of the water flow rate on one side. For example, when the water consumption side switches to the heating mode, the water flow rate changes, and the buffer tank 44 buffers the change, preventing the flow rate change from affecting the water flow fluctuation at the return port of the heat pump 2. When the water supply mode on the supply side changes, the water flow is changed in the buffer tank 44 before being supplied to the heating device 42, avoiding disturbances in the water supply temperature and facilitating the provision of a stable water flow and temperature.

[0067] In one embodiment, the water supply end 4 also includes a cooling device 43, the inlet and outlet of which are respectively connected to the second outlet and the second inlet of the buffer tank 44.

[0068] like Figure 2 and Figure 3As shown, the water supply terminal 4 includes a cooling device 43, which can supply cold water via a heat pump 2 to achieve a cooling operation. The cooling device 43 is connected to the combined water supply module 1 via a buffer tank 44. When the water flow changes on both sides of the buffer tank 44, it can be replaced within the buffer tank 44, preventing the water flow change from affecting the stability of the water supply temperature. When the water supply terminal 4 includes both a heating device 42 and a cooling device 43, both are connected to the combined water supply module 1 via the buffer tank 44, as shown... Figure 2 and Figure 3 As shown, the inlets of the heating device 42 and the cooling device 43 are simultaneously connected to the first outlet of the buffer tank 44, and the outlets of the heating device 42 and the cooling device 43 are simultaneously connected to the second inlet of the buffer tank 44. By providing a fourth three-way valve 45 between the outlet of the cooling device 43, the outlet of the heating device 42, and the second inlet of the buffer tank 44, the connection control of the outlets of the cooling device 43 and the heating device 42 to the second inlet of the buffer tank 44 can be realized, either separately or simultaneously, thereby achieving simultaneous heating and cooling, as well as separate heating and cooling.

[0069] In one embodiment, a self-regulating differential pressure bypass valve 46 and a water pump 47 are provided between the second outlet and the second inlet of the buffer tank 44.

[0070] The function of water pump 47 is to pump water from the return water pipe of cooling device 43 and / or heating device 42 into buffer tank 44 to accelerate the water flow rate. The function of self-regulating differential pressure bypass valve 46 is to maintain a relatively constant pressure difference between the first outlet and the second inlet of buffer tank 44, thereby improving water safety.

[0071] The heat pump 2 is a device that can provide both heating and cooling. In the multi-energy hot water system of this utility model, the hot water device 3 is a device used to provide hot water; therefore, the hot water device 3 can be a gas-fired wall-hung boiler, a gas water heater, or an electric water heater, etc.

[0072] The multi-energy hot water system provided in this embodiment of the utility model, in addition to the above... Figure 2 and Figure 3 The combined heating and hot water supply mode of the heat pump 2 and the hot water equipment 3 shown can also provide the following operating modes:

[0073] Heat pump 2 standalone heating mode: such as Figure 4When heat pump 2 starts in heating mode, hot water flows out from the outlet of heat pump 2, flows into the third water pipe 123 of the combined power supply hydraulic module 1, enters the branch pipe 12, flows out from the fourth water pipe 124 on the branch pipe 12, and enters the buffer tank 44. After passing through the buffer tank 44, the hot water enters the heating device 42, exchanges heat, and then returns to the buffer tank 44, flows into the eighth water pipe 151 of the combined power supply hydraulic module 1, flows through the A1 port and A1B1 port of the first three-way valve 15, flows along the return water pipe 11, flows out from the return water pipe 11, and finally flows into the return water port of heat pump 2. In the user-side system, the pipeline between the outlet of the heating device 42 and the second inlet of the buffer tank 44 is equipped with a water pump 47 that provides hydraulic circulation and a fourth three-way valve 45 for water circuit switching. When the heating device 42 is to be operated, the fourth three-way valve 45 switches to the underfloor heating mode, and the return water pipeline of the underfloor heating is connected to the return water port of the buffer tank 44.

[0074] Heat pump 2 standalone cooling mode:

[0075] When heat pump 2 starts in cooling mode, chilled water flows out from the outlet of heat pump 2. The water flow path on the equipment side is the same as in the heating mode, except that the fourth three-way valve 45 on the user side switches to cold air mode, and the outlet of the return water pipe of the cooling unit 43 (air cooler) is connected to the second inlet of the buffer tank 44. If the user needs rapid cooling, the fourth three-way valve 45 can simultaneously connect the heating unit 42 and the cooling unit 43 to the second inlet of the buffer tank 44, realizing simultaneous operation of air cooling and floor cooling.

[0076] In both of the above modes, the buffer tank 44 connects the water channels on both sides in series and achieves water channel decoupling. Since the water flow on both sides is not equal, and since the water flow on the user side will change according to the usage, the flow difference on both sides will be compensated inside the buffer tank 44 to ensure stable water flow on the equipment side and that the flow on both sides does not interfere with each other.

[0077] In the heating / cooling mode of heat pump 2, hot water unit 3 does not start. Because the internal power pump of hot water unit 3 does not operate, water circulation will not occur in the water circuit connected to hot water unit 3. In this mode, ports A1 and A1B1 of the first three-way valve 15 are connected, while ports B1 and A1B1 are closed; ports A2 and A2B2 of the second three-way valve 16 are connected, while ports B2 and A2B2 are closed; ports A3 and A3B3 of the third three-way valve 17 are connected, while ports B3 and A3B3 are closed. Although the pipes in the combined water supply module 1 are full of water, no water flow will occur in the absence of pressure differential. Typically, both hot water unit 3 and heat pump 2 have their own internal power pumps.

[0078] Heat pump 2 independent hot water supply mode:

[0079] like Figure 5When heat pump 2 starts heating mode, hot water flows out from the outlet of heat pump 2, flows into the third water pipe 123 of the combined power supply hydraulic module 1 and enters the branch pipe 12. It flows out from the second water pipe 122 on the branch pipe 12 and enters the hot water pipe 13 through the fifth water pipe 131. Then it flows out from the seventh water pipe 133 and enters the hot water supply device 41. After heat exchange, the circulating water flows back to the ninth water pipe 152 of the combined power supply hydraulic module 1, flows out from the A1B1 port through the B1 port of the first three-way valve 15, and finally flows out from the outlet of the return water pipe 11 of the combined power supply hydraulic module 1, returning to the return water port of heat pump 2.

[0080] In the hot water supply mode of heat pump 2, hot water device 3 is not started. Since the power pump inside hot water device 3 is not running, water circulation will not occur in the water circuit connected to hot water device 3. In this mode, ports B1 and A1B1 of the first three-way valve 15 are connected, while ports A1 and A1B1 are closed; ports A2 and A2B2 of the second three-way valve 16 are connected, while ports B2 and A2B2 are closed; ports A3 and A3B3 of the third three-way valve 17 are connected, while ports B3 and A3B3 are closed.

[0081] Hot water equipment 3: Independent hot water supply mode.

[0082] like Figure 6 When the hot water equipment 3 starts heating mode, the heat pump 2 does not start. Hot water flows out from the outlet of the hot water equipment 3 and into the sixth water pipe 132 of the combined water supply module 1. It flows out from the seventh water pipe 133 through the hot water pipe 13 and out of the combined water supply module 1, flowing into the hot water supply device 41. The circulating water after heat exchange flows into the ninth water pipe 152 and the tenth water pipe 161 of the combined water supply module 1. It flows in through the B2 port of the second three-way valve 16 and out through the A2B2 port. It then flows into the A3 port of the third three-way valve 17 through the eleventh water pipe 162 and out of the combined water supply module 1 through the A3B3 port, returning to the return port of the hot water equipment 3.

[0083] In this mode, heat pump 2 does not start. Since the internal power pump of heat pump 2 does not start working, water circulation will not occur in the water circuit connected to heat pump 2. In this mode, ports A1 and A1B1 of the first three-way valve 15 are connected, while ports B1 and A1B1 are closed; ports B2 and A2B2 of the second three-way valve 16 are connected, while ports A2 and A2B2 are closed; ports A3 and A3B3 of the third three-way valve 17 are connected, while ports B3 and A3B3 are closed.

[0084] Hot water unit 3: Independent heating mode.

[0085] like Figure 7When the hot water equipment 3 starts heating mode, the heat pump 2 does not start. Hot water flows out from the outlet of the hot water equipment 3 and into the sixth water pipe 132 of the combined water supply module 1. It flows through the fifth water pipe 131 of the hot water pipe 13, enters the branch pipe 12 from the second water pipe 122, and flows out from the fourth water pipe 124 into the buffer tank 44. After passing through the buffer tank 44, the hot water enters the heating device 42, exchanges heat, and then returns to the buffer tank 44. It flows into the eighth water pipe 151, passes through the B3 port of the third three-way valve 17, and flows out from the A3B3 port of the combined water supply module 1, returning to the return port of the hot water equipment 3.

[0086] The user-side system water pump 47 starts, the fourth three-way valve 45 switches to the underfloor heating mode, and the return water pipe of the heating device 42 is connected to the second inlet of the buffer tank 44.

[0087] In this mode, heat pump 2 does not start. Since the internal power pump of heat pump 2 does not start working, water circulation will not occur in the water circuit connected to heat pump 2. In this mode, port B1 of the first three-way valve 15 is connected to port A1B1, while port A1 and port A1B1 are closed; port B2 of the second three-way valve 16 is connected to port A2B2, while port A2 and port A2B2 are closed; port B3 of the third three-way valve 17 is connected to port A3B3, while port A3 and port A3B3 are closed.

[0088] Hot water unit 3 provides hot water independently + heat pump 2 provides cooling / heating independently:

[0089] like Figure 8 Hot water equipment 3 supplies hot water + heat pump 2 supplies cooling: Heat pump 2 starts cooling mode, cold water flows out from the outlet of heat pump 2, flows into the third water pipe 123 of the combined water supply module 1, flows out from the fourth water pipe 124 of the branch pipe 12 and enters the buffer tank 44. The cold water enters the cooling device 43 (cooler) through the buffer tank 44, returns to the buffer tank 44 after heat exchange, flows back to the eighth water pipe 151 of the combined water supply module 1, enters the A1 interface of the first three-way valve 15, flows out from the A1B1 port, flows out from the combined water supply module 1 along the return water pipe 11 and returns to the return water port of heat pump 2.

[0090] When the hot water device 3 starts heating mode, hot water flows out from the hot water outlet of the hot water device 3, flows in from the sixth water pipe 132 of the combined water supply module 1, flows out from the seventh water pipe 133 through the hot water pipe 13 and enters the hot water tank coil of the hot water supply device 41. After heat exchange, it flows back to the inlet of the ninth water pipe 152 of the combined water supply module 1, flows through the tenth water pipe 161 and the B2 port of the second three-way valve 16, flows out from the A2B2 port, flows along the eleventh water pipe 162 into the A3 port of the third three-way valve 17, flows out from the A3B3 port of the combined water supply module 1 and returns to the return port of the hot water device 3.

[0091] In this mode, the hot water unit 3 and the heat pump 2 operate independently, and the water flow does not interfere with each other. The A1 port and A1B1 port of the first three-way valve 15 are connected, while the B1 port and A1B1 port are closed; the B2 port and A2B2 port of the second three-way valve 16 are connected, while the A2 port and A2B2 port are closed; the A3 port and A3B3 port of the third three-way valve 17 are connected, while the B3 port and A3B3 port are closed.

[0092] When the user-side system water pump 47 starts, the fourth three-way valve 45 switches to the cold air mode, and the return water pipeline of the cooling device 43 is connected to the return water port (second inlet) of the buffer tank 44. Alternatively, the fourth three-way valve 45 can simultaneously connect the cooling device 43 and the heating device 42 to the second inlet of the buffer tank 44, so as to achieve simultaneous operation of air cooling and floor cooling.

[0093] Hot water equipment 3 supplies hot water + heat pump 2 provides heating: In this mode, heat pump 2 operates in heating mode, and the water circuit control is consistent with "hot water equipment 3 supplies hot water + heat pump 2 provides cooling". The user-side system water pump 47 starts, the fourth three-way valve 45 switches to the underfloor heating mode, and the return water pipe of the heating device 42 is connected to the second inlet of the buffer tank 44.

[0094] For ease of connection and installation, the aforementioned multi-energy hot water system includes a housing for the combined water supply module 1. The housing has interfaces for connecting and securing the joints of each water pipe. The water pipes include: the inlet of the return water pipe 11, the third water pipe 123, the fourth water pipe 124, the eighth water pipe 151, the eleventh water pipe 162, the sixth water pipe 132, the seventh water pipe 133, and the ninth water pipe 152. An automatic air vent valve 14 replaces the expansion tank in existing technology, significantly reducing the space occupied by the housing and making the multi-energy hot water system more compact. The first three-way valve 15, the second three-way valve 16, the third three-way valve 17, and the fourth three-way valve 45 used above are all electrically operated three-way valves for automatic control.

[0095] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0096] The specific embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A combined water supply module, located between a heat pump (2) and a hot water equipment (3) to achieve combined water supply to the water-using end (4); characterized in that, The combined power supply hydraulic module (1) includes: A return water pipe (11) is provided, the inlet of which is connected to the outlet of the water-using end (4), and the outlet of which is connected to the return water inlet of the heat pump (2). A diversion pipe (12) is provided with a first water pipe (121), a second water pipe (122), a third water pipe (123) and a fourth water pipe (124) that are connected to itself at intervals. The first water pipe (121) can switch between the return water port of the hot water equipment (3) and the outlet of the water-using end (4). The third water pipe (123) is connected to the outlet of the heat pump (2). The fourth water pipe (124) is connected to the inlet of the water-using end (4). A hot water pipe (13) is provided with a fifth water pipe (131), a sixth water pipe (132) and a seventh water pipe (133) spaced apart. The fifth water pipe (131) is connected to the second water pipe (122), the sixth water pipe (132) is connected to the outlet of the hot water equipment (3), and the seventh water pipe (133) is connected to the inlet of the water-using end (4).

2. The combined water supply module according to claim 1, characterized in that, The combined power supply hydraulic module (1) also includes: The first three-way valve (15) has its A1B1 port connected to the inlet of the return water pipe (11). The A1 port and B1 port of the first three-way valve (15) are respectively provided with an eighth water pipe (151) and a ninth water pipe (152). The eighth water pipe (151) and the ninth water pipe (152) are both connected to the outlet of the water-using end (4).

3. The combined water supply module according to claim 2, characterized in that, The combined power supply hydraulic module (1) also includes: The second three-way valve (16) has its A2 port connected to the first water pipe (121), its B2 port is provided with a tenth water pipe (161) for connecting to the outlet of the water-using end (4), and its A2B2 port is provided with an eleventh water pipe (162) for connecting to the return water port of the hot water equipment (3).

4. The combined water supply module according to claim 3, characterized in that, The combined power supply hydraulic module (1) also includes: The third three-way valve (17) has its A3 port and A3B3 port located on the eleventh water pipe (162), and its B3 port is connected to the eighth water pipe (151).

5. A multi-energy hot water system, characterized in that, include: The combined power supply hydraulic module (1) according to any one of claims 1-4; Heat pump (2), the outlet of the heat pump (2) is connected to the third water pipe (123), and the return water port of the heat pump (2) is connected to the outlet of the return water pipe (11); Hot water equipment (3), the outlet of the hot water equipment (3) is connected to the sixth water pipe (132), and the return water outlet of the hot water equipment (3) is connected to the first water pipe (121); The water inlet of the water inlet (4) is switched to the fourth water pipe (124) and the seventh water pipe (133), and the water outlet of the water inlet (4) is connected to the water inlet of the return water pipe (11).

6. The multi-energy hot water system according to claim 5, characterized in that, The water-using end (4) includes: A hot water supply device (41) includes a water tank, the inlet of which is connected to the seventh water pipe (133), and the outlet of which is connected to the ninth water pipe (152). A heating device (42) is provided, with its inlet connected to the fourth water pipe (124) and its outlet connected to the eighth water pipe (151).

7. The multi-energy hot water system according to claim 6, characterized in that, It also includes a buffer tank (44), which is connected between the heating device (42) and the combined water supply module (1). The first inlet and the first outlet of the buffer tank (44) are respectively connected to the fourth water pipe (124) and the eighth water pipe (151). The second outlet and the second inlet of the buffer tank (44) are respectively connected to the inlet and outlet of the heating device (42).

8. The multi-energy hot water system according to claim 7, characterized in that, The water supply end (4) also includes a cooling device (43), the inlet and outlet of which are respectively connected to the second outlet and the second inlet of the buffer tank (44).

9. The multi-energy hot water system according to claim 8, characterized in that, A fourth three-way valve (45) is provided between the outlet of the cooling device (43), the outlet of the heating device (42), and the second inlet of the buffer tank (44).

10. The multi-energy hot water system according to claim 8, characterized in that, A self-regulating differential pressure bypass valve (46) and a water pump (47) are provided between the second outlet and the second inlet of the buffer tank (44).

Images