Heat pump water machine and heat pump system

Abstract

The utility model provides a heat pump water machine and a heat pump system, which relate to the technical field of heat pumps. The heat pump water machine includes a machine shell and a water circuit structure. The machine shell includes a containing shell with one side open to form a maintenance opening and a maintenance panel for detachably covering the maintenance opening. The internal space of the containing shell includes a containing space with an outer circumference consistent with that of the maintenance opening and in a "day" shape. The inner spaces of the rings of the containing space are respectively a first operation space and a second operation space. The water circuit structure includes a water delivery pipeline and electrical components arranged on the water delivery pipeline. The water delivery pipeline is arranged in the containing space, and the end of the water delivery pipeline extends out of the machine shell. The heat pump system includes a heat pump main unit, an end device, and the above-mentioned heat pump water machine. The water circuit structure of the heat pump water machine is connected between the heat pump main unit and the end device. The heat pump water machine can perform maintenance on the water circuit structure without disassembling the water circuit structure, and both the water circuit structure and the heat pump water machine have relatively high maintenance convenience.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pumps, and particularly to a heat pump water machine and a heat pump system. Background Art

[0002] The heat pump main unit is connected to the terminal device through the water circuit structure of the heat pump water machine to form a heat pump system. The heat pump main unit makes heat flow from a low-level heat source to a high-level heat source and supplies heat to terminal devices such as a domestic water tank, an air conditioner, a floor heating system, and a radiator group through the heat pump water machine. The water circuit structure of the heat pump water machine generally includes a water delivery pipeline and electrical components arranged on the water delivery pipeline. The failure of the electrical components and the water leakage at the connection between the electrical components and the water delivery pipeline are the main reasons for the failure of the water circuit structure. However, in the related art, when overhauling the water circuit structure of the heat pump water machine, the entire water circuit structure needs to be removed, and the overhaul convenience is poor, resulting in a greater maintenance difficulty of the heat pump water machine. Content of the Utility Model

[0003] The purpose of the utility model includes providing a heat pump water machine and a heat pump system to solve the technical problem that in the related art, the overhaul convenience of the water circuit structure in the heat pump water machine is poor, resulting in a greater maintenance difficulty of the heat pump water machine.

[0004] To solve the above problems, the utility model provides a heat pump water machine, including:

[0005] A machine shell, including a housing shell with an open side forming a maintenance opening and a maintenance panel detachably covering the maintenance opening. The internal space of the housing shell includes a housing space with an outer periphery consistent with the outer periphery of the maintenance opening and in a "day" shape. The inner spaces of the ring of the housing space are respectively a first operation space and a second operation space; and,

[0006] A water circuit structure, including a water delivery pipeline and electrical components arranged on the water delivery pipeline. The water delivery pipeline is arranged in the housing space, and the end of the water delivery pipeline extends out of the machine shell.

[0007] In the heat pump water machine provided by the present utility model, by providing a maintenance port and a detachable maintenance panel on one side of the machine shell, and arranging the water delivery pipeline in a "day"-shaped accommodation space, so that the water delivery pipeline is arranged close to the inner wall of the shell surrounding the maintenance port or located in the middle area of the machine shell, thereby enclosing a relatively large area of vacant first operation space and second operation space within the loop of the water delivery pipeline, and one end of the first operation space and the second operation space opens towards the maintenance port; correspondingly, during maintenance, the maintenance panel can be disassembled, and the maintenance personnel can reach into the first operation space or the second operation space through the maintenance port with their hands to perform maintenance on the target electrical components and their connections with the water delivery pipeline; after the maintenance is completed, move the maintenance panel and connect it to the position covering the maintenance port, and only need to disassemble and assemble the maintenance panel, without disassembling the water circuit structure to achieve the maintenance of the water circuit structure, thereby improving the maintenance convenience of the water circuit structure and the maintenance convenience of the heat pump water machine.

[0008] Optionally, the accommodation space includes an outer ring area and a middle partition area, the outer periphery of the outer ring area is consistent with the outer periphery of the maintenance port, and the middle partition area is connected to the inside of the outer ring area; the water delivery pipeline includes a main hot water pipeline, and the main hot water pipeline is wound around the outer ring area.

[0009] Optionally, a three-way valve is provided at the position of the main hot water pipeline corresponding to the middle partition area, a branch joint of the three-way valve is connected to a branch hot water pipeline, and the branch hot water pipeline extends through the middle partition area and the outer ring area in sequence.

[0010] Optionally, the electrical component includes a water pump provided on the main hot water pipeline, and the water pump is located on one side of the main hot water pipeline close to the maintenance port.

[0011] Optionally, the first operation space and the second operation space are arranged in the up-down direction, and the water pump is located at the lower corner of the outer ring area.

[0012] Optionally, the ends of the water delivery pipeline all extend upward through the top plate of the machine shell.

[0013] Optionally, the heat pump water machine further includes an electric control box, the electric control box is accommodated in the accommodation shell, and the electric control box is located between the water circuit structure and the maintenance panel.

[0014] Optionally, one side edge of the electric control box is hinged to the corresponding edge of the maintenance port.

[0015] Optionally, the maintenance panel is provided with a wire controller, and the wire controller is electrically connected to the electric control box through a wire.

[0016] This utility model also provides a heat pump system, including a heat pump host, a terminal device, and the aforementioned heat pump water heater, wherein the water circuit structure of the heat pump water heater is connected between the heat pump host and the terminal device.

[0017] The heat pump system provided by this utility model adopts the above-mentioned heat pump water machine, including all the beneficial effects of the heat pump water machine, which will not be repeated here. Attached Figure Description

[0018] 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.

[0019] Figure 1 A first-form flowchart of the heat pump system provided by this utility model;

[0020] Figure 2 A second-form flow chart of the heat pump system provided by this utility model;

[0021] Figure 3 This is a front view of the heat pump water heater provided by this utility model;

[0022] Figure 4 Axonometric drawing of the heat pump water heater provided by this utility model;

[0023] Figure 5 The front view of the heat pump water heater provided by this utility model after removing the maintenance panel;

[0024] Figure 6 for Figure 5 A schematic diagram showing the central control box being rotated outwards to open the maintenance port;

[0025] Figure 7 This is a top view of the heat pump water machine provided by this utility model after the top plate has been removed.

[0026] Explanation of reference numerals in the attached figures:

[0027] 10 - Heat pump main unit; 20 - Heat pump water machine; 30 - First terminal device; 40 - Second terminal device; 50 - First cold water pipeline; 60 - Second cold water pipeline; 70 - Buffer water tank; 100 - Machine shell; 110 - Accommodating shell; 111 - Maintenance opening; 112 - Top plate; 120 - Maintenance panel; 130 - Accommodating space; 131 - Outer ring area; 132 - Middle partition area; 140 - First operation space; 150 - Second operation space; 200 - Water circuit structure; 210 - Water delivery pipeline; 211 - Main hot water pipeline; 211a - Main water inlet end; 211b - Main water outlet end; 212 - Branch hot water pipeline; 212a - Branch water outlet end; 220 - Electrical components; 221 - Three-way valve; 221a - Branch joint; 222 - Water pump; 223 - Electric heater; 224 - Safety valve; 225 - Pressure gauge; 226 - Target flow switch; 227 - Filter; 300 - Electric control box; 310 - After-sales wiring area; 400 - Remote controller. Detailed implementation manners

[0028] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of specific embodiments of the present utility model is provided in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present utility model, and are not used to limit the present utility model.

[0029] This embodiment provides a heat pump water machine 20, as Figures 3-7 shown, which includes a machine shell 100 and a water circuit structure 200. The machine shell 100 includes an accommodating shell 110 with an open side forming a maintenance opening 111 and a maintenance panel 120 detachably covering the maintenance opening 111. The internal space of the accommodating shell 110 includes an accommodating space 130 with an outer periphery consistent with that of the maintenance opening 111 and in a "day" shape. The inner spaces of the ring of the accommodating space 130 are respectively a first operation space 140 and a second operation space 150. The water circuit structure 200 includes a water delivery pipeline 210 and electrical components 220 provided on the water delivery pipeline 210. The water delivery pipeline 210 is arranged in the accommodating space 130, and the ends of the water delivery pipeline 210 extend out of the machine shell 100.

[0030] In the heat pump water machine 20 provided in this embodiment, the machine shell 100 includes a housing shell 110 for accommodating and loading the water circuit structure 200 and a maintenance panel 120 capable of covering or opening the maintenance port 111. An annular space area that is close to the inner wall of the housing shell and extends along the circumference of the maintenance port 111 in the internal space of the housing shell 110 serves as the outer ring area 131, and a space area that is connected between the opposite sides of the outer ring area 131 serves as the middle partition area 132. The middle partition area 132 and the outer ring area 131 together form an accommodation space 130 in the shape of a Chinese character 'ri' (day). The middle partition area 132 and the outer ring area 131 enclose two annular spaces, and the inner spaces of the two annular spaces are respectively the first operation space 140 and the second operation space 150, and one end face of the first operation space 140 and the second operation space 150 along the axis of the outer ring area 131 faces the maintenance port 111. The water delivery pipeline 210 of the water circuit structure 200 is arranged in at least one of the outer ring area 131 and the middle partition area 132 of the accommodation space 130. Then, the water delivery pipeline 210 and its connection with the electrical component 220 are arranged close to the inner wall area of the housing shell 110, or are arranged in the middle area of the housing shell 110. The outer shell of the electrical component 220 provided on the water delivery pipeline 210 can be completely accommodated in the accommodation space 130, or can extend from the accommodation space 130 to the first operation space 140 or the second operation space 150 where it is centrally vacant.

[0031] When it is necessary to perform maintenance on the water circuit structure 200, the maintenance panel 120 can be moved to the position where the maintenance port 111 is opened. The maintenance port 111 is in an open state, and the water circuit structure 200 is exposed through the maintenance port 111. The first operation space 140 and the second operation space 150 serve as relatively large vacant spaces, and can accommodate the hands of the maintenance personnel to reach in. Correspondingly, the maintenance personnel can directly reach their hands through the maintenance port 111 into the first operation space 140 or the second operation space 150 to perform maintenance on the target electrical component 220 and its connection with the water delivery pipeline 210. After the maintenance is completed, the maintenance panel 120 is moved and connected to the position where the maintenance port 111 is covered.

[0032] In the heat pump water machine 20 provided in this embodiment, by providing a maintenance port 111 and a detachable maintenance panel 120 on one side of the housing 100, and arranging the water delivery pipeline 210 in the accommodating space 130 in a shape of "day", so that the water delivery pipeline 210 is arranged close to the inner wall of the housing surrounding the maintenance port 111, or located in the middle area of the housing 100, thereby enclosing a relatively large area of vacant first operation space 140 and second operation space 150 within the loop of the water delivery pipeline 210, and one end of the first operation space 140 and the second operation space 150 opens towards the maintenance port 111; correspondingly, during maintenance, the maintenance panel 120 can be detached, and maintenance personnel can reach into the first operation space 140 or the second operation space 150 through the maintenance port 111 with their hands to perform maintenance on the target electrical component 220 and its connection with the water delivery pipeline 210; after the maintenance is completed, move the maintenance panel 120 and connect it to the position covering the maintenance port 111. Only the maintenance panel 120 needs to be disassembled and assembled, and there is no need to disassemble the water circuit structure 200 to achieve the maintenance of the water circuit structure 200, thereby improving the maintenance convenience of the water circuit structure 200 and the maintenance convenience of the heat pump water machine 20.

[0033] In addition, the water delivery pipeline 210 is arranged around the relatively large area of vacant first operation space 140 and second operation space 150. Besides the above for maintenance personnel to reach into with their hands for maintenance, the first operation space 140 and the second operation space 150 can also accommodate the electrical component 220, so as to reduce the restrictions on the installation space and installation orientation of the electrical component 220 and improve the layout convenience of the electrical component 220.

[0034] Specifically, the maintenance panel 120 can be detachably connected to the end face of the maintenance port 111 through a connecting member to cover it. During maintenance, remove the connecting member and remove the maintenance panel 120 to open the maintenance port 111; or, one side of the maintenance panel 120 is hinged to the end face of the maintenance port 111, and the other side is detachably connected to the end face of the maintenance port 111 through a connecting member. During maintenance, remove the connecting member and rotate the maintenance panel 120 to open the maintenance port 111; or, the maintenance panel 120 can also be slidably connected to the end face of the maintenance port 111. During maintenance, slide the maintenance panel 120 in a direction away from the housing 100 to open the maintenance port 111.

[0035] This embodiment also provides a heat pump system, such as Figure 1 and Figure 2As shown, the system includes a heat pump main unit 10, terminal devices, and the aforementioned heat pump water heater 20. The water circuit structure 200 of the heat pump water heater 20 connects the heat pump main unit 10 and the terminal devices. The heat pump main unit 10 and the terminal devices are connected through the heat pump water heater 20 to form a circulating water circuit. In use, the heat pump main unit 10 provides hot water to the terminal devices through the heat pump water heater 20, and the cold water after the terminal devices dissipate heat flows back to the heat pump main unit 10, thereby achieving continuous heating. This heat pump system uses the aforementioned heat pump water heater 20, and all the beneficial effects of the heat pump water heater 20 will not be elaborated here.

[0036] In this embodiment, as Figure 6 As shown, the accommodating space 130 includes an outer ring area 131 and a middle section 132 connected within the outer ring area 131. The outer periphery of the outer ring area 131 coincides with the outer periphery of the inspection port 111. The water supply pipeline 210 includes a main hot water pipeline 211, which is routed around the outer ring area 131. In the heat pump water heater 20, the main hot water pipe 211 for conveying hot water is arranged inside the casing 100, and the various electrical components 220 are set in the main hot water pipe 211. By integrating the electrical components 220 into the casing 100, the compact size of the heat pump water heater 20 is effectively improved, thereby reducing its installation space requirements and improving its installation applicability. This type of heat pump water heater 20 is suitable for connecting a single terminal device. In use, the main inlet end 211a of the main hot water pipe 211 is connected to the hot water outlet side of the heat pump host 10, the main outlet end 211b of the main hot water pipe 211 is connected to the hot water inlet of the terminal device, and the cold water outlet of the terminal device is connected to the cold water inlet side of the heat pump host 10 through the first cold water pipe 50.

[0037] The main hot water pipe 211 is only arranged in the outer ring area 131 of the accommodating space 130, and the middle section 132 is empty. The first operating space 140 and the second operating space 150 are connected to form a larger empty space, which provides a larger maintenance space for maintenance personnel and a larger installation space for electrical components 220, thereby further improving the assembly and maintenance convenience of the heat pump water machine 20.

[0038] In this embodiment, a buffer water tank 70 is provided between the terminal device and the main water outlet end 211b. The buffer water tank 70 can reduce the frequent start-stop of the compressor of the heat pump host 10, protect the compressor, and improve the comfort and stability of the heat pump system.

[0039] Specifically, the terminal device can be one of the following: domestic water tank, air conditioner, underfloor heating, or radiator assembly.

[0040] In this embodiment, as Figure 6 and Figure 7As shown, a three-way valve 221 is provided at the position of the main hot water pipe 211 corresponding to the middle zone 132. The branch connector 221a of the three-way valve 221 is connected to a branch hot water pipe 212, which extends sequentially to the middle zone 132 and the outer ring zone 131. This type of heat pump water heater 20 is suitable for two terminal devices. In use, the main inlet end 211a of the main hot water pipe 211 is connected to the hot water outlet side of the heat pump host 10, and the main outlet end 211b of the main hot water pipe 211 is connected to the hot water inlet of the first terminal device 30. The cold water outlet of the first terminal device 30 is connected to the cold water inlet side of the heat pump host 10 through the first cold water pipe 50. The outlet end 212a of the branch hot water pipe 212 is connected to the hot water inlet of the second terminal device 40, and the cold water outlet of the second terminal device 40 is connected to the cold water inlet side of the heat pump host 10 through the second cold water pipe 60. The heat pump host 10 can select to provide hot water to one of the terminal devices through the heat pump water heater 20, or it can provide hot water to the first terminal device 30 and the second terminal device 40 at the same time, thereby improving the functionality of the heat pump water heater 20 and the heat pump system.

[0041] Among them, the branch hot water pipe 212 extends into the middle zone 132 and the outer ring zone 131, and extends outward into the casing 100. Based on the ability to connect two terminal devices, the inner space of the outer ring zone 131 is divided into two relatively concentrated and larger operating spaces, to ensure the maintenance operation and the arrangement of electrical components 220.

[0042] Among them, electrical device 220 includes a water pump 222 installed in the main hot water pipe 211. The specific forms of the first terminal device 30 and the second terminal device 40 are determined based on the relative upstream and downstream positions of the three-way valve 221 and the water pump 222 in the main hot water pipe 211: For example... Figure 1 As shown, when the three-way valve 221 is located downstream of the water pump 222, the water pump 222 can provide power to both the main hot water pipe 211 and the branch hot water pipe 212, thus the form of the first terminal device 30 and the second terminal device 40 is not limited; Figure 2 As shown, when the three-way valve 221 is located upstream of the water pump 222, the form of the first terminal device 30 is not limited, and the second terminal device 40 is preferably a domestic water tank.

[0043] like Figure 1 and Figure 2As shown, the electrical components 220 may specifically include a water pump 222, an electric heater 223, a safety valve 224, a pressure gauge 225, and a flow switch 226 installed in the main hot water pipe 211. The electric heater 223 is provided to provide auxiliary heating. When the heating capacity of the heat pump host 10 meets the requirements, the electric heater 223 is in the off state. When the heating capacity of the heat pump host 10 does not meet the requirements, the electric heater 223 can be started to provide auxiliary heating to the hot water flowing through the main hot water pipe 211, thereby increasing the temperature of the hot water delivered to the terminal device, thus improving the adjustability of the heat pump system and ensuring the heating effect on the terminal device.

[0044] like Figure 2 As shown, a filter 227 can also be installed upstream of the water pump 222. The filter 227 can filter impurities in the hot water to reduce the blockage and damage caused by impurities entering the water pump 222, terminal devices, etc., thereby ensuring the stable operation of the heat pump water machine 20 and the heat pump system.

[0045] In this embodiment, as Figure 6 and Figure 7 As shown, the water pump 222 is located on the side of the water circuit structure 200 near the access port 111. The connection point of the water pump 222 is a potential leak point; by placing it near the access port 111, the obstruction of the water supply pipeline 210 to the water pump 222 is further reduced. This makes it easier for maintenance personnel to inspect the water pump 222 via the access port 111, thereby further improving the maintenance convenience of the water pump 222 and the heat pump water heater 20.

[0046] In this embodiment, as Figure 6 As shown, the first operating space 140 and the second operating space 150 are arranged in the vertical direction. The middle partition 132 is approximately a horizontal partition space, which divides the inner space of the outer ring area 131 into upper and lower parts. The upper space is the first operating space 140, and the lower space is the second operating space 150. One end face of the first operating space 140 and the second operating space 150 along the axial direction of the outer ring area 131 faces the inspection port 111. The water pump 222 is located at the lower corner of the outer ring area 131. On the one hand, the water pump 222 is located below the branch hot water pipe 212 to reduce the interference of the branch hot water pipe 212 on the installation space of the water pump 222 and ensure the installation of the water pump 222. On the other hand, the water pump 222 is located in the lower corner position, and other electrical components 220 are all located above the water pump 222. When the water pump 222 leaks, the leaked water will not drip onto other electrical components 220, thereby reducing the possibility of other electrical components 220 being damaged by water immersion or even causing fire hazards, and correspondingly improving the stability and safety of the heat pump water machine 20.

[0047] In this embodiment, as Figure 3 and Figure 4 As shown, the ends of the water supply pipes 210 all extend upwards through the top plate 112 of the housing 100. Both the inlet and outlet ends of the water supply pipes 210 are located above the top plate 112, making connection operations more convenient when connecting the heat pump water heater 20, the heat pump main unit 10, and the terminal devices, thus improving the ease of use of the heat pump water heater 20. Simultaneously, since the ends of the water supply pipes 210 are all located above the top plate 112, they do not occupy the side space of the housing 100, thereby reducing the horizontal space occupied by the heat pump water heater 20 and lowering its requirements for horizontal installation space.

[0048] In this embodiment, as Figures 5-7 As shown, the heat pump water heater 20 also includes an electrical control box 300, which is housed within the housing 110 and located between the water circuit structure 200 and the access panel 120. Integrating the electrical control box 300 within the housing 100 allows the electrical components 220 to be wirelessly or wirelessly connected to the terminals of the water module control board in the electrical control box 300. This improves the integration of the heat pump water heater 20, reduces wiring operations between the electrical components 220 and the electrical control box 300, and ensures the stability of the connection between the electrical components 220 and the electrical control box 300, especially reducing the possibility of loose or broken wires during use and handling. In addition, the electrical control box 300 is arranged between the water system structure 200 and the access panel 120. When the electrical control box 300 needs to be repaired, the access panel 120 can be removed, and the electrical control box 300 can be repaired through the access port 111. When the water system structure 200 needs to be repaired, the electrical control box 300 can be removed or the electrical control box 300 can be turned outward so that it no longer obstructs the water system structure 200, and the water system structure 200 can be repaired through the access port 111.

[0049] In this embodiment, as Figure 6 and Figure 7 As shown, one side edge of the electrical control box 300 is hinged to the corresponding edge of the access port 111. The electrical control box 300 is located between the access port 111 and the water circuit structure 200. When the water circuit structure 200 needs to be repaired, the access panel 120 can be removed, and then the electrical control box 300 can be rotated outward around the hinge to expose the water circuit structure 200. Maintenance personnel can directly repair the internal water circuit structure 200 through the access port 111. After the repair is completed, the electrical control box 300 is rotated back to its original position, and the access panel 120 is inserted into the access port 111, thereby improving the convenience of repairing the water circuit structure 200 and further improving the maintenance convenience of the heat pump water heater 20.

[0050] Specifically, the side edge of the electrical control box 300 can be hinged to the corresponding edge of the access port 111.

[0051] In this embodiment, as Figure 3 and Figure 4 As shown, the maintenance panel 120 is equipped with a wired controller 400, which is electrically connected to the after-sales wiring area 310 of the electrical control box 300 via a wire. During use, the maintenance panel 120 and the wired controller 400 are located on the outside, allowing users to easily perform wiring and control operations on the wired controller 400. When it is necessary to repair the water circuit structure 200, the maintenance panel 120 can be removed, and then the maintenance panel 120 can be rotated synchronously with the electrical control box 300. Repair of the water circuit structure 200 can be achieved without disconnecting the wires connecting the wired controller 400 and the electrical control box 300, thereby reducing the need for repeated wiring and disassembly / reassembly of the casing 100 during maintenance, and further improving the ease of maintenance of the heat pump water heater 20.

[0052] 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.

[0053] 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 heat pump water machine characterized by, Comprising: A housing (100), including a receiving housing (110) with one side open to form a maintenance opening (111) and a maintenance panel (120) detachably covering the maintenance opening (111). The internal space of the receiving housing (110) includes a receiving space (130) whose outer periphery is the same as that of the maintenance opening (111) and is in the shape of a Chinese character 'Ri'. The inner spaces within the ring of the receiving space (130) are respectively a first operation space (140) and a second operation space (150); and, A water circuit structure (200), including a water delivery pipeline (210) and electrical components (220) provided on the water delivery pipeline (210). The water delivery pipeline (210) is arranged within the receiving space (130), and the end of the water delivery pipeline (210) extends out of the housing (100).

2. The heat pump water machine of claim 1, wherein, The receiving space (130) includes an outer ring area (131) and a middle partition area (132). The outer periphery of the outer ring area (131) is the same as that of the maintenance opening (111), and the middle partition area (132) is connected to the inside of the outer ring area (131); the water delivery pipeline (210) includes a main hot water pipeline (211), and the main hot water pipeline (2 3. The heat pump water machine of claim 2, wherein, ​ 4. The heat pump water heater of claim 2, wherein, ​ 5. The heat pump water machine of claim 4, wherein, ​ 6. The heat pump water heater of claim 1, wherein, ​ 7. The heat pump water heater of any of claims 1-6, wherein, ​ 8. The heat pump water heater of claim 7, wherein, ​ 9. The heat pump water heater of claim 7, wherein, ​ 10. A heat pump system, characterized by, ​

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