Multi-system heat pump water module and multi-system heat pump equipment

Abstract

The utility model provides a multi-system heat pump water module and multi-system heat pump equipment, and relates to the field of heat pumps. The water module comprises a box body, a main waterway system and at least one auxiliary waterway system, the main waterway system and the auxiliary waterway system are arranged in the box body, the main waterway system comprises a first cold water pipeline and a first hot water pipeline, and the auxiliary waterway system comprises a second cold water pipeline and a second hot water pipeline; the water inlet end of the first cold water pipeline and the water outlet end of the first hot water pipeline are connected to a first tail end device, and the water inlet end of the second cold water pipeline and the water outlet end of the second hot water pipeline are connected to a second tail end device; the second tail end device is provided with a water replenishing port, and the water replenishing port is configured to replenish water to the second tail end device; a filter is arranged on the water inlet side of the second cold water pipeline and located in the box body. The water module is integrated with at least two water path systems, so that the occupied space is small; the filter can filter impurities of the second tail end device, and the filter is arranged in the box body, so that after-sale installation can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of heat pump technology, and more specifically, to a multi-system heat pump water module and a multi-system heat pump device. Background Technology

[0002] Heat pump equipment includes a heat pump unit, water modules, and terminal devices. The heat pump unit heats or cools the water delivered from the water modules, and the water modules deliver the heated or cooled water to the terminal devices to meet users' needs for domestic hot water, heating, etc.

[0003] When users have multiple usage needs, multiple heat pump water modules are usually installed to supply hot or cold water to multiple terminal devices respectively. However, this installation method takes up a lot of space and the pipes are prone to dirt and blockage.

[0004] To effectively prevent pipe blockage, existing technologies typically install a filter between the water module and the terminal device when installing heat pump equipment. However, this results in more installation steps, is more time-consuming, and significantly impacts the user experience. Utility Model Content

[0005] The first objective of this utility model is to provide a multi-system heat pump water module to solve the technical problem in the prior art where a filter is installed between the water module and the terminal device to avoid pipe blockage during the installation of heat pump equipment, resulting in low equipment installation efficiency.

[0006] The multi-system heat pump water module provided by this utility model includes a housing and a main water circuit system and at least one auxiliary water circuit system disposed within the housing. The main water circuit system includes a first cold water pipe and a first hot water pipe, and the auxiliary water circuit system includes a second cold water pipe and a second hot water pipe. The inlet end of the first cold water pipe and the outlet end of the first hot water pipe are both configured to be connected to a first terminal device, and the inlet end of the second cold water pipe and the outlet end of the second hot water pipe are both configured to be connected to a second terminal device. The second terminal device has a water inlet configured to supply water to the second terminal device. A filter is provided on the inlet side of the second cold water pipe, and the filter is located within the housing.

[0007] The multi-system heat pump water module provided by this utility model can produce the following beneficial effects:

[0008] The multi-system heat pump water module provided by this utility model integrates at least two water circuit systems and can connect to at least two terminal devices, thus meeting different customer needs. Moreover, multiple water circuit systems are integrated into one water module, which occupies little space.

[0009] The second terminal device connected to the auxiliary water system can replenish water. The multi-system heat pump water module provided by this invention has a filter at the inlet end of its second cold water pipe, which can filter impurities from the second terminal device, thus protecting the water supply pipes, water pump, and heat pump unit. Furthermore, the filter is built into the housing, eliminating the need to install a separate filter between the water module and the second terminal device during after-sales installation, significantly improving installation efficiency and user experience.

[0010] In addition, the water inlet or outlet of the pipe runs through the left or right side panel of the box, which is very convenient for after-sales installation and connection. It can be installed as a wall-mounted or floor-standing unit, greatly increasing the applicable scenarios.

[0011] Furthermore, the first terminal device includes a domestic water tank for providing domestic hot water; the second terminal device includes a buffer water tank and an air conditioning terminal, the air conditioning terminal being used to meet the user's heating needs, specifically including radiators, underfloor heating in houses or roads, fan coil units, etc.; the buffer water tank is connected between the heat pump water module and the air conditioning terminal for buffering water flow, and the buffer water tank has the water inlet.

[0012] Furthermore, the filter is a Y-type threaded filter, with both ends fixedly connected to the corresponding pipelines via threads. This technical solution, where both ends of the filter are fixedly connected to the corresponding pipelines via threads, makes disassembly and assembly very convenient.

[0013] Furthermore, the second cold water pipeline is also equipped with a second water pump assembly, and the filter is located upstream of the second water pump assembly along the water flow direction. With this technical solution, only water filtered by the filter flows into the second water pump assembly, effectively preventing clogging and protecting the assembly, thereby significantly extending its service life.

[0014] Furthermore, the first cold water pipeline includes a first cold water inlet pipeline, a first water pump assembly, and a first cold water outlet pipeline; the second cold water pipeline also includes a second cold water inlet pipeline and a second cold water outlet pipeline, with the second water pump assembly connected between the two; a first connecting pipeline is also connected between the second cold water inlet pipeline and the first cold water inlet pipeline, and one end of the first connecting pipeline connected to the second cold water inlet pipeline is located between the filter and the second water pump assembly.

[0015] Further, the first cold water inlet pipeline and the second cold water inlet pipeline each sequentially include a first horizontal pipe section, a first bending portion, a first vertical pipe section, a second bending portion, and a second horizontal pipe section from their water inlet ends to their water outlet ends. The first vertical pipe section extends from the first bending portion away from the front panel of the box body to the second bending portion; the first cold water outlet pipeline and the second cold water outlet pipeline each sequentially include a third horizontal pipe section, a third bending portion, a second vertical pipe section, a fourth bending portion, and a fourth horizontal pipe section from their water outlet ends to their water inlet ends. The second vertical pipe section extends from the third bending portion away from the front panel to the fourth bending portion; the filter is connected between the first horizontal pipe section and the first bending portion of the second cold water inlet pipeline; the second water pump assembly is connected between the second horizontal pipe section of the second cold water inlet pipeline and the fourth horizontal pipe section of the second cold water outlet pipeline; the first water pump assembly is connected between the second horizontal pipe section of the first cold water inlet pipeline and the fourth horizontal pipe section of the first cold water outlet pipeline.

[0016] Under this technical solution, in a top-down perspective, both the first cold water pipeline and the second cold water pipeline are generally in a "Ji" shape or an "Ω" shape. The first water pump assembly and the second water pump assembly are respectively arranged between the corresponding first vertical pipe section and the second vertical pipe section and are arranged facing forward, which is very convenient for disassembly, installation, and maintenance; the space between the first vertical pipe section and the right side plate can be used to arrange other pipelines or components, such as hot water pipelines; the space between the second vertical pipe section and the left side plate can also be used to arrange other pipelines or components, such as electric heaters. With such an arrangement, the structure inside the entire box body is very compact, and the utilization rate of space is also very high, which can greatly reduce the volume and occupied space of the entire heat pump water module, and thus can expand the application scenarios, increase the container loading capacity, and reduce the transportation cost.

[0017] Further, the first communication pipeline includes a fixed inclined vertical straight pipe and a connecting elbow; the first cold water inlet pipeline is provided with a T-shaped three-way joint. The two straight ends of the T-shaped three-way joint are respectively connected to the first cold water inlet pipeline and the first water pump assembly, and the third end of the T-shaped three-way joint is connected to the inclined vertical straight pipe; the second cold water inlet pipeline is provided with the filter and a first Y-shaped three-way joint. The two symmetric ends of the first Y-shaped three-way joint are respectively connected to the water inlet end of the first bending portion of the second cold water inlet pipeline and the connecting elbow, and the third end of the first Y-shaped three-way joint is connected to the water outlet end of the filter. The water inlet end of the filter is connected to the water outlet end of the first horizontal pipe section of the second cold water inlet pipeline.

[0018] Under this technical solution, by setting a T-type tee connector and a first Y-type tee connector, and connecting the first cold water inlet pipe and the second cold water inlet pipe through the first connecting pipe, the first cold water pipe and the second cold water pipe can replenish water to each other, so that the water volume and water pressure in the two cold water pipes are more balanced.

[0019] Furthermore, a pressure gauge is installed in one of the first connecting pipe, the first cold water pipe, and the second cold water pipe to detect the water pressure in the pipe.

[0020] Furthermore, the number of the secondary water circuit system is one; the inlet end of the first cold water pipe, the outlet end of the first hot water pipe, the inlet end of the second cold water pipe, and the outlet end of the second hot water pipe all pass through one of the left side panel and the right side panel of the housing, and are arranged sequentially from bottom to top; the outlet end of the first cold water pipe, the inlet end of the first hot water pipe, the outlet end of the second cold water pipe, and the inlet end of the second hot water pipe all pass through the other of the left side panel and the right side panel of the housing, and are arranged sequentially from bottom to top.

[0021] Under this technical solution, the inlet end of the cold water pipe and the outlet end of the hot water pipe of each water system are adjacent, which facilitates connection with the terminal device; the outlet end of the cold water pipe and the inlet end of the hot water pipe of each water system are adjacent, which facilitates connection with the heat pump host.

[0022] The second objective of this utility model is to provide a multi-system heat pump device to solve the technical problem in the prior art where a filter is installed between the water module and the terminal device to avoid pipe blockage, resulting in low installation efficiency.

[0023] The multi-system heat pump device provided by this utility model includes at least two heat pump main units, a first terminal device, at least one second terminal device, and the aforementioned multi-system heat pump water module. The multi-system heat pump water module is connected between each of the heat pump main units and each of the terminal devices. This multi-system heat pump device possesses all the beneficial effects of the aforementioned multi-system heat pump water module, and therefore will not be elaborated further here. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0025] Figure 1One of the partial structural front views of the heat pump water module provided in an embodiment of this utility model;

[0026] Figure 2 A second partial front view of the heat pump water module provided in an embodiment of this utility model;

[0027] Figure 3 One of the partial three-dimensional structural schematic diagrams of the heat pump water module provided in the embodiment of this utility model;

[0028] Figure 4 A schematic diagram of the structure of each pipe inside the casing of the heat pump water module provided in this embodiment of the utility model;

[0029] Figure 5 A second partial three-dimensional structural schematic diagram of the heat pump water module provided for an embodiment of this utility model;

[0030] Figure 6 A schematic diagram of the structure of the heat pump water module after disassembly, provided in an embodiment of this utility model;

[0031] Figure 7 A partial exploded view of the cold water pipeline of the heat pump water module provided in this embodiment of the utility model;

[0032] Figure 8 A schematic diagram of the structure of the electric heater of the heat pump water module after disassembly, provided for an embodiment of this utility model;

[0033] Figure 9 A partial exploded view of the hot water pipe of the heat pump water module provided in this embodiment of the utility model;

[0034] Figure 10 A cross-sectional view of the first water pump assembly of the heat pump water module provided in an embodiment of the present utility model;

[0035] Figure 11 A cross-sectional view of the first electric heater of the heat pump water module provided in an embodiment of this utility model;

[0036] Figure 12 A cross-sectional view of the second electric heater of the heat pump water module provided in an embodiment of this utility model.

[0037] Explanation of reference numerals in the attached figures:

[0038] 100 - Box body; 120 - Rear wall panel; 130 - Left side panel; 140 - Right side panel; 150 - Top panel; 160 - Bottom panel;

[0039] 200 - First cold water pipe; 210 - First cold water inlet pipe; 211 - First horizontal pipe section; 212 - First bend; 213 - First longitudinal pipe section; 214 - Second bend; 215 - Second horizontal pipe section; 220 - T-type tee connector; 221 - First limiting protrusion; 230 - First nut; 231 - First body; 232 - First limiting ring; 233 - First limiting surface; 240 - First water pump; 241 - First screw Thread; 242 - External thread; 250 - First check valve; 251 - Internal thread; 252 - Second thread; 260 - Second nut; 261 - Second body; 262 - Second limiting ring; 263 - Second limiting surface; 270 - First cold water outlet pipe; 271 - Third horizontal pipe section; 272 - Third bend; 273 - Second longitudinal pipe section; 274 - Fourth bend; 275 - Fourth horizontal pipe section; 2751 - Second limiting protrusion;

[0040] 300 - First hot water pipe; 310 - First hot water inlet pipe; 311 - First straight pipe; 312 - First bend; 313 - U-shaped pipe; 314 - Second annular protrusion; 3141 - Second annular slope; 3142 - Second union; 320 - First electric heater; 321 - First annular protrusion; 3211 - First annular slope; 322 - Third annular protrusion; 3221 - Third annular slope; 330 - First hot water outlet pipe; 331 - First hot water outlet pipe section; 3311 - Fourth annular protrusion; 3312 - Fourth annular slope; 3313 - Third union; 332 - Three-way valve; 3321 - Valve body; 3322 - Actuator; 333 - Second hot water outlet pipe section; 340 - First clamp; 341 - First annular groove; 350 - Second clamp; 351 - Second annular groove;

[0041] 400 - Second cold water pipeline; 410 - Second cold water inlet pipeline; 420 - Filter; 430 - First Y-type tee connector; 440 - Second water pump; 450 - Second check valve; 470 - Second cold water outlet pipeline;

[0042] 500 - Second hot water pipe; 510 - Second hot water inlet pipe; 520 - Second electric heater; 530 - Second hot water outlet pipe; 531 - Third hot water outlet pipe section; 532 - Second Y-type tee connector; 533 - Fourth hot water outlet pipe section;

[0043] 600 - First connecting pipe; 610 - Inclined vertical pipe; 620 - Connecting bend;

[0044] 700 - Second connecting pipe; 710 - Horizontal pipe section; 720 - Vertical pipe section;

[0045] 810 - Safety valve; 820 - Pressure gauge; 830 - Target flow switch. Detailed Implementation

[0046] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it.

[0047] This embodiment provides a multi-system heat pump water module and a multi-system heat pump device. The multi-system heat pump water module includes a housing 100 and a main water system and at least one auxiliary water system disposed within the housing 100. That is, the multi-system heat pump water module integrates at least two water systems, wherein the main water system can also be referred to as the first water system and the auxiliary water system can also be referred to as the second water system. The multi-system heat pump device includes at least two heat pump main units, a first terminal device, at least one second terminal device, and the aforementioned multi-system heat pump water module. The multi-system heat pump water module is connected between each heat pump main unit and each terminal device.

[0048] Specifically, in this embodiment, there is one secondary water circuit system. The following uses this as an example to introduce the multi-system heat pump water module provided in this application. However, in other embodiments of this application, the secondary water circuit system is not limited to one, but can also be two or three, etc., which can be set according to specific needs.

[0049] like Figures 1 to 4 As shown, the multi-system heat pump water module provided in this embodiment includes a main water system comprising a first cold water pipe 200 and a first hot water pipe 300, and a secondary water system comprising a second cold water pipe 400 and a second hot water pipe 500. The inlet end of the first cold water pipe 200 and the outlet end of the first hot water pipe 300 are both configured to be connected to a first terminal device, and the inlet end of the second cold water pipe 400 and the outlet end of the second hot water pipe 500 are both configured to be connected to a second terminal device. The second terminal device has a water inlet configured to supply water to the second terminal device. A filter 420 is provided on the inlet side of the second cold water pipe 400, and the filter 420 is located inside the housing 100.

[0050] The multi-system heat pump water module provided in this embodiment integrates at least two water circuit systems and can connect to at least two terminal devices, thus meeting different customer needs. Moreover, multiple water circuit systems are integrated into one water module, which occupies little space.

[0051] The second terminal device connected to the auxiliary water system can replenish water. The multi-system heat pump water module provided in this embodiment has a filter 420 at the inlet end of its second cold water pipe 400. This filter can filter impurities from the second terminal device, thus protecting the water supply pipes, water pump, and heat pump unit. Furthermore, the filter 420 is built into the housing 100, eliminating the need to install it between the water module and the second terminal device during after-sales installation, thereby greatly improving installation efficiency and user experience.

[0052] In addition, the water inlet or outlet of the pipe runs through the left side plate 130 or right side plate 140 of the box 100, which is very convenient for after-sales installation and connection. It can be installed as a wall-mounted type or a floor-standing type, greatly increasing the applicable scenarios.

[0053] In this embodiment, the first terminal device includes a domestic water tank for providing domestic hot water; the second terminal device includes a buffer water tank and an air conditioning terminal, the air conditioning terminal is used to meet the user's heating needs, specifically it can be a radiator, house floor heating or road floor heating, fan coil unit, etc.; the buffer water tank is connected between the heat pump water module and the air conditioning terminal to buffer the water flow, and the buffer water tank has a water inlet.

[0054] In this embodiment, filter 420 is a Y-type threaded filter, with both ends fixedly connected to the corresponding pipeline by threads, which is very convenient for disassembly and assembly.

[0055] In this embodiment, there are no pipes obstructing the connection points at both ends of the filter 420. With this configuration, the filter 420 is exposed after the front panel and other components of the housing 100 are removed or opened, making it easier to disassemble and assemble, and improving maintenance efficiency.

[0056] In this embodiment, the second cold water pipeline 400 is also equipped with a second water pump assembly, and the filter 420 is located upstream of the second water pump assembly along the water flow direction. This arrangement ensures that only water filtered by the filter 420 flows into the second water pump assembly, effectively preventing clogging and protecting the assembly, thereby significantly extending its service life.

[0057] In this embodiment, as Figure 1 As shown, the first cold water pipeline 200 includes a first cold water inlet pipeline 210, a first water pump assembly, and a first cold water outlet pipeline 270; the second cold water pipeline 400 also includes a second cold water inlet pipeline 410 and a second cold water outlet pipeline 470, with the second water pump assembly connected between the two; a first connecting pipeline 600 is also connected between the second cold water inlet pipeline 410 and the first cold water inlet pipeline 210, and one end of the first connecting pipeline 600 connected to the second cold water inlet pipeline 410 is located between the filter 420 and the second water pump assembly.

[0058] As Figure 1 shown, and in combination with Figure 4 and Figure 7 shown, in this embodiment, the first cold water inlet pipeline 210 and the second cold water inlet pipeline 410 both sequentially include a first horizontal pipe section 211, a first bending part 212, a first vertical pipe section 213, a second bending part 214, and a second horizontal pipe section 215 from their water inlet ends to their water outlet ends. The first vertical pipe section 213 extends from the first bending part 212 in a direction away from the front panel of the box body 100 to the second bending part 214; the first cold water outlet pipeline 270 and the second cold water outlet pipeline 470 both sequentially include a third horizontal pipe section 271, a third bending part 272, a second vertical pipe section 273, a fourth bending part 274, and a fourth horizontal pipe section 275 from their water outlet ends to their water inlet ends. The second vertical pipe section 273 extends from the third bending part 272 in a direction away from the front panel to the fourth bending part 274; the filter 420 is connected between the first horizontal pipe section and the first bending part of the second cold water inlet pipeline 410; the second water pump assembly is connected between the second horizontal pipe section 215 of the second cold water inlet pipeline 410 and the fourth horizontal pipe section 275 of the second cold water outlet pipeline 470; the first water pump assembly is connected between the second horizontal pipe section 215 of the first cold water inlet pipeline and the fourth horizontal pipe section 275 of the first cold water outlet pipeline 270.

[0059] In the above setting form, in the top view perspective, both the first cold water pipeline 200 and the second cold water pipeline 400 are generally in a "U" shape or an "Ω" shape. The first water pump assembly and the second water pump assembly are respectively arranged between the corresponding first vertical pipe section 213 and the second vertical pipe section 273, and are arranged facing forward, which is very convenient for disassembly, installation, and maintenance; the space between the first vertical pipe section 213 and the right side plate 140 can be used to arrange other pipelines or components, such as hot water pipelines; the space between the second vertical pipe section 273 and the left side plate 130 can also be used to arrange other pipelines or components, such as electric heaters, etc. With such a setting, the structure inside the entire box body 100 is very compact, and the utilization rate of space is also very high, which can greatly reduce the volume and occupied space of the entire heat pump water module, and thus can expand the application scenarios, and can also increase the container loading capacity and reduce the transportation cost.

[0060] In this embodiment, continuing as Figure 1 shown, the first water pump assembly and the second water pump assembly are arranged adjacent to each other vertically, and are located in the lower part or the middle part of the box body 100, close to the bottom plate 160. With such a setting, the space occupied by the first cold water pipeline 200 and the second cold water pipeline 400 in the height direction is relatively small, so the height of the box body 100 can be reduced, and the center of gravity of the entire water module can also be reduced. While improving the overall structural compactness and stability of the water module, the adaptability of the water module to the usage scenario is improved, and it is also beneficial to increase the container loading capacity, thereby reducing the transportation cost.

[0061] like Figure 1 As shown, in this embodiment, the first connecting pipe 600 includes a fixed oblique vertical pipe 610 and a connecting bend 620; the first cold water inlet pipe 210 is provided with a T-shaped tee connector 220, the two straight ends of the T-shaped tee connector 220 are respectively connected to the first cold water inlet pipe 210 and the first water pump assembly, and the third end of the T-shaped tee connector 220 is connected to the oblique vertical pipe 610; the second cold water inlet pipe 410 is provided with a filter 420 and a first Y-shaped tee connector 430, the symmetrical ends of the first Y-shaped tee connector 430 are respectively connected to the inlet end of the first bend of the second cold water inlet pipe 410 and the connecting bend 620, the third end of the first Y-shaped tee connector 430 is connected to the outlet end of the filter 420, and the inlet end of the filter 420 is connected to the outlet end of the first horizontal pipe section of the second cold water inlet pipe 410. By setting a T-type tee connector 220 and a first Y-type tee connector 430, and connecting the first cold water inlet pipe 210 and the second cold water inlet pipe 410 through the first connecting pipe 600, the first cold water pipe 200 and the second cold water pipe 400 can replenish water to each other, so that the water volume and water pressure in the two cold water pipes are more balanced.

[0062] Continue as Figure 1 As shown, in this embodiment, a pressure gauge 820 is provided in the first connecting pipe 600 for detecting the water pressure in the pipe. Since the first cold water pipe 200 and the second cold water pipe 400 are connected through the first connecting pipe 600, in other embodiments of this application, the pressure gauge 820 can also be provided in the first cold water pipe 200 or the second cold water pipe 400.

[0063] In this embodiment, the inlet end of the first cold water pipe 200, the outlet end of the first hot water pipe 300, the inlet end of the second cold water pipe 400, and the outlet end of the second hot water pipe 500 all pass through the right side plate 140 of the housing 100 and are arranged sequentially from bottom to top; the outlet end of the first cold water pipe 200, the inlet end of the first hot water pipe 300, the outlet end of the second cold water pipe 400, and the inlet end of the second hot water pipe 500 all pass through the left side plate 130 of the housing 100 and are arranged sequentially from bottom to top. Of course, in other embodiments of this application, the inlet and outlet ends of each pipe can be interchanged. That is, the inlet end of the first cold water pipe 200, the outlet end of the first hot water pipe 300, the inlet end of the second cold water pipe 400, and the outlet end of the second hot water pipe 500 all pass through the left side plate 130, while the outlet end of the first cold water pipe 200, the inlet end of the first hot water pipe 300, the outlet end of the second cold water pipe 400, and the inlet end of the second hot water pipe 500 all pass through the right side plate 140. With this arrangement, the inlet ends of the cold water pipes and the outlet ends of the hot water pipes of each water system are adjacent, which facilitates connection with the terminal device; the outlet ends of the cold water pipes and the inlet ends of the hot water pipes of each water system are adjacent, which facilitates connection with the heat pump host.

[0064] In this embodiment, the water pump assembly includes a water pump and a check valve. The water pump provides power for water flow, and the check valve, also known as a one-way valve, prevents backflow of water. The multi-system heat pump water module provided in this embodiment features a water pump assembly that is very easy to assemble and disassemble. Specifically, the water pump assembly is fixedly connected to the cold water inlet pipe via a first nut 230, with no pipe obstruction in front of the first nut 230; the water pump assembly is fixedly connected to the cold water outlet pipe via a second nut 260, with no pipe obstruction in front of the second nut 260. With this configuration, after removing or opening the front panel and other components of the housing 100, both ends of the water pump assembly can be easily disassembled and assembled, thereby detaching the water pump assembly from between the cold water inlet pipe and the cold water outlet pipe. Figure 6 As shown, installing the water pump assembly between the cold water inlet pipe and the cold water outlet pipe can greatly improve the efficiency of inspection and maintenance.

[0065] It should be noted that in other embodiments of this application, the pump assembly may have only one inlet or only one outlet connected to the corresponding pipeline via nuts, while the other end is connected via other detachable fixed connections. For example, only the inlet of the pump assembly may be connected to the cold water inlet pipeline via nuts, while the outlet of the pump assembly may be fixedly connected to the cold water outlet pipeline via flanges or other structures. Of course, in other embodiments of this application, both ends of the pump assembly may also be detachably fixedly connected to the corresponding pipeline via flanges.

[0066] More specifically, in this embodiment, as Figure 1 As shown, the cold water inlet pipe is equipped with a connecting joint, and the outlet end of the connecting joint is connected to the inlet end of the water pump assembly via a first nut 230. The connecting joint includes two-way and three-way connectors, which can be selected according to specific needs, such as... Figure 1 As shown, in the first water system, the inlet of the first water pump 240 is connected to a T-joint. The first end of the T-joint is connected to the inlet of the first water pump 240 via a first nut 230, the second end is connected to the first cold water inlet pipe 210, and the third end is configured to connect to other cold water pipes (such as the cold water inlet pipe of the second water system). In the second water system, the inlet of the water pump is connected to a two-way connector. The outlet of the two-way connector is connected to the inlet of the second water pump 440 via a first nut 230, and the inlet of the two-way connector is connected to the outlet of the second cold water inlet pipe 410. By setting a connecting connector at the outlet of the cold water inlet pipe, easy installation and disassembly between the cold water inlet pipe and the water pump are ensured, and modification of the outlet of the cold water inlet pipe is avoided, which is very convenient.

[0067] In this embodiment, as Figure 7 and Figure 10 As shown, the first nut 230 includes a first body 231 and a first limiting ring 232 fixed to the first body 231. The first limiting ring 232 has a first limiting surface 233. One of the connecting connector and the water pump assembly is provided with a first limiting protrusion 221. The first limiting protrusion 221 is annular, and its outer diameter is smaller than the inner diameter of the first body 231 and larger than the minimum inner diameter of the first limiting ring 232. The other of the connecting connector and the water pump assembly is provided with a first thread 241. The internal thread of the first nut 230 is threadedly connected to the first thread 241, and the first limiting surface 233 abuts tightly against the first limiting protrusion 221. With this configuration, when it is necessary to disassemble the water inlet of the water pump assembly, it is only necessary to unscrew the first nut 230 from the first thread 241, which is very quick and convenient. Moreover, the first nut 230 will not fall off due to the blocking effect of the first limiting protrusion 221.

[0068] It should be noted that in other embodiments of this application, the positions of the first limiting protrusion 221 and the first thread 241 can also be interchanged. In that case, the first nut 230 is sleeved on the water inlet end of the water pump. That is, the water inlet end of the water pump is provided with the first limiting protrusion 221, the water outlet end of the connecting connector is provided with the first thread 241, and the first nut 230 is sleeved on the water inlet end of the water pump, thus fixing the water inlet end of the water pump and the water outlet end of the connecting connector together. This is also very convenient for disassembly and assembly.

[0069] It should also be noted that the first limiting protrusion 221 can be directly set at the water outlet end of the connecting connector, or a first swivel connector can be used, which is a hollow T-shaped connector. The first swivel connector is placed inside or outside the water outlet end of the connecting connector, and the radial protrusion of the first swivel connector forms the first limiting protrusion 221.

[0070] like Figure 7 and Figure 10 As shown, in this embodiment, the water pump is connected to the connecting connector, and the check valve is connected to the cold water outlet pipe. The inlet end of the check valve is provided with an internal thread 251, and the outlet end of the water pump is provided with an external thread 242. The two are fixedly connected by the external thread 242 and the internal thread 251. Of course, in other embodiments of this application, the outlet end of the water pump can also be provided with an internal thread 251, while the inlet end of the check valve is provided with an external thread 242. In this case, the outlet end of the water pump and the inlet end of the check valve can still be fixedly connected by the external thread 242 and the internal thread 251. With this configuration, when it is necessary to disassemble the water pump, the water pump assembly can be removed from the cold water pipe, and then the water pump and the check valve can be separated. Of course, in other embodiments of this application, the inlet end of the check valve and the outlet end of the water pump can also be directly connected by the second nut 260. In this case, when it is necessary to disassemble the water pump, only the water pump needs to be disassembled.

[0071] like Figure 7 and Figure 10 As shown, the second nut 260 includes a second body 261 and a second limiting ring 262 fixed to the second body 261. The second limiting ring 262 has a second limiting surface 263. One of the cold water outlet pipe and the check valve is provided with a second limiting protrusion 2751. The second limiting protrusion 2751 is annular, and its outer diameter is smaller than the inner diameter of the second body 261 and larger than the minimum inner diameter of the second limiting ring 262. The other of the cold water outlet pipe and the check valve is provided with a second thread 252. The internal thread of the second nut 260 is threadedly connected to the second thread 252, and the second limiting surface 263 abuts tightly against the second limiting protrusion 2751. With this configuration, when the water pump assembly needs to be disassembled, the second nut 260 can be unscrewed from the second thread 252, and the second nut 260 will not fall off due to the blocking effect of the second limiting protrusion 2751.

[0072] In other embodiments of this application, the positions of the second limiting protrusion 2751 and the second thread 252 can also be interchanged. In this case, the second nut 260 is sleeved outside the outlet end of the check valve. That is, the outlet end of the check valve is provided with the second limiting protrusion 2751, the inlet end of the cold water outlet pipe is provided with the second thread 252, and the second nut 260 is sleeved outside the outlet end of the check valve, thus fixing the inlet end of the cold water outlet pipe and the outlet end of the check valve together. This is also very convenient for disassembly and assembly.

[0073] In this embodiment, as Figure 1 As shown, the check valve of the first water circuit system is the first check valve 250, which is used to prevent backflow of water in the first cold water pipe 200. The check valve of the second water circuit system is the second check valve 450, which is used to prevent backflow of water in the second cold water pipe 400. Both are fixedly connected to the rear wall plate 120 of the housing 100. With this configuration, the position of the check valve is fixed and restricted. At the same time, the water pumps and cold water outlet pipes at both ends of the check valve are also better supported and restricted, thus improving the stability of the entire cold water pipeline.

[0074] The multi-system heat pump water module provided in this embodiment is equipped with an electric heater in each hot water pipe for rapid auxiliary heating to better meet customer needs. Moreover, the electric heater in the multi-system heat pump water module provided in this embodiment is also very easy to disassemble and assemble, which will be described in detail below.

[0075] like Figure 2 As shown, the heat pump water module provided in this embodiment includes a detachably fixed hot water inlet pipe, an electric heater, and a hot water outlet pipe. There are no pipe obstructions in front of the connection points at both ends of the electric heater. The electric heater in this embodiment serves as auxiliary heating to quickly heat the water to the required temperature, better meeting customer needs. Furthermore, by removing or opening the front panel and other components of the housing 100, the two ends of the electric heater can be easily disassembled and reassembled, allowing the electric heater to be removed from the hot water inlet pipe and the hot water outlet pipe, or installed between them, greatly improving maintenance efficiency.

[0076] Specifically, in this embodiment, as Figure 5 , Figure 8 , Figure 9 , Figure 11 , Figure 12 As shown, the inlet end of the electric heater is connected to the outlet end of the hot water inlet pipe and is fixedly connected by the first clamp 340; the inner peripheral wall of the first clamp 340 is provided with a first annular groove 341, the outer peripheral wall of the inlet end of the electric heater is provided with a first annular protrusion 321, and the outer peripheral wall of the outlet end of the hot water inlet pipe is provided with a second annular protrusion 314. The first annular protrusion 321 and the second annular protrusion 314 are connected and both are locked in the first annular groove 341.

[0077] The outlet end of the electric heater is connected to the inlet end of the hot water outlet pipe and is fixedly connected by the second clamp 350. The inner peripheral wall of the second clamp 350 is provided with a second annular groove 351, the outer peripheral wall of the outlet end of the electric heater is provided with a third annular protrusion 322, and the outer peripheral wall of the inlet end of the hot water outlet pipe is provided with a fourth annular protrusion 3311. The third annular protrusion 322 and the fourth annular protrusion 3311 are connected and are both locked in the second annular groove 351.

[0078] The inlet end of the electric heater and the outlet end of the hot water inlet pipe are fixedly connected by the first clamp 340, and the outlet end of the electric heater and the inlet end of the hot water outlet pipe are fixedly connected by the second clamp 350. The parts are readily available and very easy to disassemble and assemble.

[0079] More specifically, in this embodiment, the first clamp 340 and the second clamp 350 can be knob-type clamps, with no pipe obstruction in front of the knob, making them easy to install and remove.

[0080] It should be noted that in other embodiments of this application, only the inlet end of the electric heater and the outlet end of the hot water inlet pipe may be connected by clamps, while the outlet end of the electric heater and the inlet end of the hot water outlet pipe may be fixedly connected by a flange or other structure; or only the outlet end of the electric heater and the inlet end of the hot water outlet pipe may be connected by clamps, while the inlet end of the electric heater and the outlet end of the hot water inlet pipe may be connected by a flange or other structure. Of course, in other embodiments of this application, both ends of the electric heater may also be detachably fixedly connected to the corresponding pipes via flanges.

[0081] It should also be noted that the second annular protrusion 314 can be directly installed at the outlet end of the hot water inlet pipe, or a second union 3142 can be used, such as... Figure 11 As shown, it is a hollow T-type connector. The second union 3142 is placed outside or inside the outlet end of the hot water inlet pipe, and the radial protrusion of the second union 3142 forms the second annular protrusion 314. Similarly, the fourth annular protrusion 3311 can be directly set at the inlet end of the hot water outlet pipe, or a third union 3313 can be used, which is a hollow T-type connector. The third union 3313 is placed outside or inside the inlet end of the hot water outlet pipe, and the radial protrusion of the third union 3313 forms the fourth annular protrusion 3311.

[0082] More specifically, in this embodiment, as Figure 11As shown, the end face of the first annular protrusion 321 away from the second annular protrusion 314 is a first annular inclined surface 3211, and from the top to the bottom of the first annular protrusion 321, the first annular inclined surface 3211 is inclined in a direction away from the second annular protrusion 314; the end face of the second annular protrusion 314 away from the first annular protrusion 321 is a second annular inclined surface 3141, and from the top to the bottom of the second annular protrusion 314, the second annular inclined surface 3141 is inclined in a direction away from the first annular protrusion 321. In other embodiments of this application, only one of the first annular inclined surface 3211 and the second annular inclined surface 3141 may be provided.

[0083] Continue as Figure 11 As shown, the end face of the third annular protrusion 322 away from the fourth annular protrusion 3311 is a third annular inclined surface 3221, and from the top to the bottom of the third annular protrusion 322, the third annular inclined surface 3221 is inclined in a direction away from the fourth annular protrusion 3311; the end face of the fourth annular protrusion 3311 away from the third annular protrusion 322 is a fourth annular inclined surface 3312, and from the top to the bottom of the fourth annular protrusion 3311, the fourth annular inclined surface 3312 is inclined in a direction away from the third annular protrusion 322. In other embodiments of this application, only one of the third annular inclined surface 3221 and the fourth annular inclined surface 3312 may be provided.

[0084] The above-mentioned annular inclined surfaces all serve as guides for the clamps, enabling the grooves and protrusions to engage more quickly and accurately. Furthermore, the annular inclined surfaces allow for adjustment of the clamp's tightness, ensuring a tight and secure connection between the electric heater and the corresponding pipeline, guaranteeing the reliability and sealing of the connection.

[0085] To further ensure the sealing of the connection, such as Figure 11 As shown, a sealing ring (not shown in the figure) is provided on the opposite end face of the first annular protrusion 321 and the second annular protrusion 314. A sealing ring (not shown in the figure) is also provided on the opposite end face of the third annular protrusion 322 and the fourth annular protrusion 3311. In order to limit the sealing ring, at least one of the two opposite end faces is also provided with an annular groove.

[0086] In this embodiment, as Figure 2As shown, the hot water pipeline of the first water system is the first hot water pipeline 300, which includes a first hot water inlet pipeline 310 and a first hot water outlet pipeline 330. The first hot water outlet pipeline 330 includes a first hot water outlet pipe section 331, a three-way valve 332, and a second hot water outlet pipe section 333, which are fixedly connected in sequence. The hot water pipeline of the second water system is the second hot water pipeline 500, which includes a second hot water inlet pipeline 510 and a second hot water outlet pipeline 530. The inlet end and the outlet end of the three-way valve 332 are respectively connected to the first hot water outlet pipe section 331 and the second hot water outlet pipe section 333, and the other outlet end of the three-way valve 332 is connected to the second hot water outlet pipeline 530 through the second connecting pipeline 700.

[0087] In the above configuration, when one terminal device, such as the domestic water tank, reaches the required temperature, while another terminal device, such as the heating terminal, has a higher demand but cannot meet it, adjusting the three-way valve 332 allows both the first and second water circuit systems to jointly provide a heat or cold source to the heating terminal, quickly meeting the user's heating or cooling needs. Furthermore, the three-way valve 332 facilitates the installation and removal of the second water circuit system; when the installation scenario changes, the second water circuit system can be directly installed or removed using the three-way valve 332. In addition, when three or more water circuit systems need to be installed, multi-way valves or multiple three-way valves 332 can be added to the first or second water circuit system to connect the hot water pipes and allow for mutual supplementation.

[0088] like Figure 2 As shown, the three-way valve 332 includes a valve body 3321 and an actuator 3322. The valve body 3321 has one inlet end and two outlet ends. The actuator 3322 is located on the top of the valve body 3321, and there is a disassembly gap between the actuator 3322 and the top plate 150 of the housing 100. The value of the disassembly gap ranges from 10mm to 30mm.

[0089] In this embodiment, combined with Figure 2 and Figure 9As shown, the hot water inlet pipe of the first hot water pipe 300 is the first hot water inlet pipe 310, and the electric heater of the first hot water pipe 300 is the first electric heater 320. The first electric heater 320 is vertically positioned, with its inlet end located at its bottom. The first hot water inlet pipe 310 includes a first straight pipe 311, a first bend pipe 312, and a U-shaped pipe 313, which are sequentially and fixedly connected. The opening of the U-shaped pipe 313 faces upward and is arranged in the front-to-back direction. The first electric heater 320 is located behind the first straight pipe 311, and its inlet end is connected to the outlet end of the U-shaped pipe 313 and is lower than the first straight pipe 311. In this configuration, the first water pump 240 and the second water pump 440 are placed horizontally in the lower or middle part of the housing 100. The first electric heater 320 is located behind the third horizontal pipe section of the first cold water pipe 200 and the third horizontal pipe section of the second cold water pipe 400. This not only effectively utilizes the space behind the two third horizontal pipe sections and improves the compactness of the overall structure, but also reduces the height of the housing 100 compared with the scheme where all electric heaters are placed horizontally.

[0090] Specifically, in this embodiment, the hot water inlet pipe of the second hot water pipe 500 is the second hot water inlet pipe 510, the electric heater of the second hot water pipe 500 is the second electric heater 520, and the hot water outlet pipe of the second hot water pipe 500 is the second hot water outlet pipe 530. The second hot water inlet pipe 510 is horizontally positioned, and the second electric heater 520 is horizontally positioned between the outlet end of the second hot water inlet pipe 510 and the inlet end of the second hot water outlet pipe 530. The second hot water pipe 500 is basically arranged horizontally, so it occupies little space and can effectively control the height of the tank 100.

[0091] In this embodiment, as Figure 4 As shown, the second connecting pipe 700 is L-shaped, including a fixed horizontal pipe section 710 and a vertical pipe section 720; the second hot water outlet pipe 530 includes a third hot water outlet pipe section 531, a second Y-type tee connector 532, and a fourth hot water outlet pipe section 533, which are fixedly connected in sequence. The symmetrical ends of the second Y-type tee connector 532 are connected to the outlet end of the third hot water outlet pipe section 531 and the horizontal pipe section 710, respectively, and the third end of the second Y-type tee connector 532 is connected to the inlet end of the fourth hot water outlet pipe section 533. With this configuration, the structure of the second connecting pipe 700 is simple, and the second hot water outlet pipe 530 is also basically horizontally arranged, which not only facilitates water flow but also occupies less height space, thus reducing the overall height.

[0092] In this embodiment, as Figure 4As shown, a safety valve 810 is provided in the second connecting pipe 700. When the first water system and the second water system are working, the safety valve 810 can promptly relieve pressure on the first hot water pipe 300 and the second hot water pipe 500. Of course, in other embodiments of this application, the safety valve 810 may also be provided in the second hot water pipe 500.

[0093] In this embodiment, as Figure 4 As shown, a flow switch 830, also known as a water flow switch, is installed between the three-way valve 332 and the first electric heater 320, as well as in the second hot water inlet pipe 510. This is used to detect the fluid in the hot water pipe to effectively protect the electric heater, prevent problems such as dry burning of the electric heater due to insufficient flow and excessive pressure in the water system, and ensure the normal operation of the water system.

[0094] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0095] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-system heat pump water module, characterized in that, It includes a housing (100) and a main water system and at least one auxiliary water system disposed within the housing (100). The main water system includes a first cold water pipe (200) and a first hot water pipe (300). The auxiliary water system includes a second cold water pipe (400) and a second hot water pipe (500). The inlet end of the first cold water pipe (200) and the outlet end of the first hot water pipe (300) are both configured to be connected to the first terminal device, and the inlet end of the second cold water pipe (400) and the outlet end of the second hot water pipe (500) are both configured to be connected to the second terminal device; the second terminal device has a water inlet, which is configured to replenish water to the second terminal device; A filter (420) is provided on the inlet side of the second cold water pipeline (400), and the filter (420) is located inside the housing (100).

2. The multi-system heat pump water module according to claim 1, characterized in that, The first terminal device includes a domestic water tank, and the second terminal device includes a buffer water tank and an air conditioning terminal. The buffer water tank is connected between the heat pump water module and the air conditioning terminal, and the buffer water tank has the water inlet.

3. The multi-system heat pump water module according to claim 1, characterized in that, The filter (420) is a Y-type threaded filter, and its two ends are fixedly connected to the corresponding pipeline by threads.

4. The multi-system heat pump water module according to claim 1, characterized in that, The second cold water pipeline (400) is also provided with a second water pump assembly, and the filter (420) is located upstream of the second water pump assembly along the direction of water flow.

5. The multi-system heat pump water module according to claim 4, characterized in that, The first cold water pipeline (200) includes a first cold water inlet pipeline (210), a first water pump assembly, and a first cold water outlet pipeline (270); the second cold water pipeline (400) further includes a second cold water inlet pipeline (410) and a second cold water outlet pipeline (470), and the second water pump assembly is connected between the two. A first connecting pipe (600) is also connected between the second cold water inlet pipe (410) and the first cold water inlet pipe (210), and one end of the first connecting pipe (600) connected to the second cold water inlet pipe (410) is located between the filter (420) and the second water pump assembly.

6. The multi-system heat pump water module according to claim 5, characterized in that, The first cold water inlet pipe (210) and the second cold water inlet pipe (410) each include a first horizontal pipe section (211), a first bend (212), a first vertical pipe section (213), a second bend (214), and a second horizontal pipe section (215) from their inlet end to their outlet end. The first vertical pipe section (213) extends from the first bend (212) toward the front panel away from the housing (100) to the second bend (214). The first cold water outlet pipe (270) and the second cold water outlet pipe (470) each include a third horizontal pipe section (271), a third bend (272), a second vertical pipe section (273), a fourth bend (274) and a fourth horizontal pipe section (275) from their outlet end to their inlet end. The second vertical pipe section (273) extends from the third bend (272) in a direction away from the front panel to the fourth bend (274). The filter (420) is connected between the first horizontal pipe section and the first bend of the second cold water inlet pipe (410); The second water pump assembly is connected between the second horizontal pipe section (215) of the second cold water inlet pipe (410) and the fourth horizontal pipe section (275) of the second cold water outlet pipe (470); The first water pump assembly is connected between the second horizontal pipe section (215) of the first cold water inlet pipe (210) and the fourth horizontal pipe section (275) of the first cold water outlet pipe (270).

7. The multi-system heat pump water module according to claim 6, characterized in that, The first connecting pipe (600) includes a fixed inclined vertical pipe (610) and a connecting bend (620); The first cold water inlet pipe (210) is equipped with a T-shaped tee connector (220). The two straight ends of the T-shaped tee connector (220) are respectively connected to the first cold water inlet pipe (210) and the first water pump assembly, and the third end of the T-shaped tee connector (220) is connected to the inclined vertical pipe (610). The second cold water inlet pipe (410) is equipped with the filter (420) and the first Y-type tee connector (430). The symmetrical ends of the first Y-type tee connector (430) are respectively connected to the inlet end of the first bend of the second cold water inlet pipe (410) and the connecting bend (620). The third end of the first Y-type tee connector (430) is connected to the outlet end of the filter (420). The inlet end of the filter (420) is connected to the outlet end of the first horizontal pipe section of the second cold water inlet pipe (410).

8. The multi-system heat pump water module according to claim 5, characterized in that, A pressure gauge (820) is provided on one of the first connecting pipe (600), the first cold water pipe (200) and the second cold water pipe (400).

9. The multi-system heat pump water module according to any one of claims 1-8, characterized in that, The number of the secondary waterway system is one; The inlet of the first cold water pipe (200), the outlet of the first hot water pipe (300), the inlet of the second cold water pipe (400), and the outlet of the second hot water pipe (500) all pass through one of the left side plate (130) and the right side plate (140) of the housing (100), and are arranged sequentially from bottom to top. The outlet of the first cold water pipe (200), the inlet of the first hot water pipe (300), the outlet of the second cold water pipe (400), and the inlet of the second hot water pipe (500) all pass through the other of the left side plate (130) and the right side plate (140) of the housing (100), and are arranged sequentially from bottom to top.

10. A multi-system heat pump device, characterized in that, It includes at least two heat pump main units, a first terminal device, at least one second terminal device, and a multi-system heat pump water module as described in any one of claims 1-9, wherein the multi-system heat pump water module is connected between each of the heat pump main units and each of the terminal devices.

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