Water tank, hydraulic module and heat pump system

Abstract

The utility model discloses a water tank, a hydraulic module and a heat pump system. The water tank comprises an inner container, an electric heater and a heat exchange pipe, the electric heater is arranged in a heat exchange cavity of the inner container so as to heat water in the heat exchange cavity, the heat exchange pipe is arranged in the heat exchange cavity so as to exchange heat with the water in the heat exchange cavity, the heat exchange pipe comprises two sets of spiral pipes, a transition pipe and two butt joint pipes, and the two sets of spiral pipes are arranged on the two opposite sides of the electric heater in the preset direction respectively. The transition pipe is connected between the two sets of spiral pipes, each butt joint pipe is communicated with one set of spiral pipes, and the two butt joint pipes extend towards the same sides of the two sets of spiral pipes from the corresponding spiral pipes in the preset direction. The electric heater and the heat exchange pipe are combined for use, the heating rate can be increased, the two sections of butt joint pipes extend in the preset stacking direction of the two sets of spiral pipes, the influence of the temperature difference of heat exchange media in the two sections of butt joint pipes on the water temperature distribution uniformity can be reduced, and the water temperature distribution uniformity in the heat exchange cavity can be further improved.

Description

Technical Field

[0001] This application relates to the technical field of water tanks, and in particular, to a water tank, a hydraulic module, and a heat pump system. Background Art

[0002] In the current heating technology field, when it is necessary to meet various hot water demands such as domestic water and heating, a water supply tank is usually integrated into a hydraulic module system. The water tank has a heat exchange structure that can transfer the heat of the heat source to the water in the inner tank of the water tank to meet the hot water demand. If the heat exchange structure is poorly designed, it is easy to cause problems such as uneven heating of the water inside the water tank and low heat exchange efficiency. Summary of the Utility Model

[0003] Embodiments of this application provide a water tank, a hydraulic module, and a heat pump system, which can solve the problem of poor heating effect of the heat exchange structure of the water tank on the water inside the inner tank.

[0004] In a first aspect, embodiments of this application provide a water tank, including:

[0005] An inner tank having a heat exchange cavity for storing water;

[0006] An electric heater disposed in the heat exchange cavity to heat the water in the heat exchange cavity; and

[0007] A heat exchange pipe disposed in the heat exchange cavity to exchange heat with the water in the heat exchange cavity;

[0008] Wherein, the heat exchange pipe includes two groups of spiral pipes, a transition pipe, and two sections of butt pipes. The two groups of spiral pipes are respectively disposed on opposite sides of the electric heater along a preset direction. The transition pipe is connected between the two groups of spiral pipes. Each butt pipe is communicated with one group of spiral pipes, and along the preset direction, the two butt pipes respectively extend from the corresponding spiral pipes towards the same side of the two groups of spiral pipes.

[0009] In some embodiments, the two groups of spiral pipes extend spirally in the same direction. The transition pipe is connected between the ends of the two groups of spiral pipes facing each other. The two groups of butt pipes are respectively connected to the ends of the two groups of spiral pipes away from each other in a one-to-one correspondence.

[0010] In some embodiments, one of the two sections of butt pipes is a first butt pipe, and the first butt pipe extends from the spiral pipe connected thereto in a direction away from the other group of spiral pipes;

[0011] The other of the two sections of butt pipes is a second butt pipe. The second butt pipe is bent from the spiral pipe connected thereto to the middle area of the spiral pipe to extend towards the same side as the first butt pipe and passes through the two groups of spiral pipes.

[0012] In some embodiments, the heat exchange tubes are configured such that the heat exchange medium enters from one of the first connection pipe and the second connection pipe, and sequentially passes through one section of the spiral tube, the transition tube, and the other section of the spiral tube, and then flows out from the other of the first connection pipe and the second connection pipe.

[0013] In some embodiments, each of the spiral tubes includes at least one section of spiral unit, and when the spiral tube includes multiple sections of spiral units, the multiple sections of spiral units of the same spiral tube are stacked and connected end to end along the preset direction; wherein,

[0014] the spiral units of the two groups of spiral tubes are coaxially arranged; and / or,

[0015] the spiral angles of the spiral units of the two groups of spiral tubes are equal; and / or,

[0016] the outer contour dimensions of the spiral units of the two groups of spiral tubes are equal.

[0017] In some embodiments, the water tank further includes functional devices, and the functional devices and the electric heater are both arranged in the area between the two groups of spiral tubes;

[0018] The functional devices include at least one of a temperature detector and a consumption electrode.

[0019] In some embodiments, the inner tank includes an upper head and a lower head of the inner tank that are oppositely arranged along the preset direction, and the two connection pipes extend along the preset direction towards the upper head or the lower head of the inner tank;

[0020] The inner tank further includes an inner tank body connected between the upper head and the lower head of the inner tank, and the functional devices and the electric heater are respectively installed on the inner tank body.

[0021] In some embodiments, the water tank includes two heat exchange interfaces installed on the inner tank, and the two connection pipes extend to be respectively connected to the two heat exchange interfaces in a one-to-one correspondence, so that each connection pipe is communicated with an external connection pipe through the corresponding heat exchange interface.

[0022] In some embodiments, the water tank includes a plurality of auxiliary connection pipes communicated with the heat exchange chamber, and a plurality of auxiliary interfaces respectively connected to the plurality of auxiliary connection pipes, and the auxiliary interfaces are installed on the inner tank, so that each auxiliary connection pipe is communicated with an external connection pipe through the auxiliary interface;

[0023] Some of the auxiliary connection pipes extend along the preset direction to extend into the middle area of the spiral tube.

[0024] In a second aspect, the present application provides a hydraulic module, including:

[0025] A plurality of hydraulic devices, one of which is the water tank as described above; and

[0026] A plurality of connecting pipes, each of the hydraulic devices being communicated with other hydraulic devices through at least one of the connecting pipes.

[0027] In a third aspect, the present application provides a heat pump system including the hydraulic module as described above.

[0028] Based on the water tank, the hydraulic module and the heat pump system of the embodiments of the present application, by arranging the electric heater between two sets of spiral pipes of the heat exchange pipe to heat water, the electric heater can heat the water temperature more flexibly and efficiently, improve the heating rate, and the two sets of spiral pipes are respectively arranged on opposite sides of the electric heater, which is convenient for flexibly designing the structure of the spiral pipes, enabling the two sets of spiral pipes to cover more areas, increasing the heat exchange area, improving the heat exchange efficiency, and enabling the water in each area of the heat exchange cavity to be heated more evenly. And by arranging two butt pipes extending along the preset direction of the stacking of the two sets of spiral pipes, the influence of the temperature difference of the heat exchange medium in the two butt pipes on the uniformity of the water temperature distribution can be reduced, which helps to further improve the uniformity of the water temperature distribution in the heat exchange cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0030] Figure 1 A three-dimensional structural schematic diagram of two butt pipes extending towards the upper head of the inner tank according to an embodiment of the present application;

[0031] Figure 2 A three-dimensional structural schematic diagram of two butt pipes extending towards the lower head of the inner tank according to an embodiment of the present application;

[0032] Figure 3 A three-dimensional structural schematic diagram of the number of spiral units of the first spiral pipe being greater than the number of spiral units of the second spiral pipe according to an embodiment of the present application;

[0033] Figure 4 A three-dimensional structural schematic diagram of the number of spiral units of the first spiral pipe being equal to the number of spiral units of the second spiral pipe according to an embodiment of the present application;

[0034] Figure 5 A three-dimensional structural schematic diagram of an auxiliary interface installed on the upper head of the inner tank according to an embodiment of the present application.

[0035] Reference numerals:

[0036] 100, inner tank; 10a, heat exchange chamber; 110, inner tank body; 120, upper head of inner tank; 130, lower head of inner tank;

[0037] 200, heat exchange tube; 210, spiral tube; 2101, first spiral tube; 2102, second spiral tube; 211, spiral unit; 220, transition tube; 230, docking tube; 231, first docking tube; 232, second docking tube;

[0038] 300, functional device; 310, electric heater; 320, temperature detector; 330, consumption electrode;

[0039] 410, heat exchange interface; 420, auxiliary interface; 421, water inlet interface; 422, water outlet interface; 423, make-up water interface; 424, return water interface; 425, circulation interface; 430, auxiliary connecting pipe;

[0040] X, preset direction. Detailed implementation manners

[0041] In order to make the objectives, technical solutions and advantages of the present application more clear and understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0042] The inventor found that if the heat exchange structure design of the water tank is insufficient, it is easy to cause problems such as the water inside the water tank being difficult to be evenly heated and low heat exchange efficiency. For example, if the heat exchange structure of the water tank uses only heat exchange tubes for heat exchange to heat the water inside the water tank, there is likely to be a problem of low heat exchange efficiency. If only a heater is used to heat the water inside the water tank, there is likely to be a problem of uneven heating. If the heat exchange tube and the heater are used in combination, the advantages of the two heat exchange methods can be combined, but the presence of the heater will interfere with the installation of the heat exchange tube. Based on this, the embodiments of the present application provide a water tank, which optimizes the structure of the water tank to improve the heat exchange efficiency of the water tank.

[0043] Such as Figure 1As shown in the figure, a water tank according to an embodiment of the present application includes an inner tank 100, an electric heater 310, and a heat exchange tube 200. The inner tank 100 has a heat exchange cavity 10a for storing water. The electric heater 310 is disposed in the heat exchange cavity 10a to heat the water in the heat exchange cavity 10a. The heat exchange tube 200 is disposed in the heat exchange cavity 10a, and there is a heat exchange medium in the heat exchange tube 200. The heat exchange medium exchanges heat with the water in the heat exchange cavity 10a through the heat exchange tube 200. When it is necessary to heat the water in the heat exchange cavity 10a, the electric heater 310 and the heat exchange tube 200 can be combined to jointly heat the water in the heat exchange cavity 10a, improving the heating efficiency. Of course, when it is necessary to cool the water in the heat exchange cavity 10a, the heat exchange tube 200 can also exchange heat with the water in the heat exchange cavity 10a to reduce the water temperature in the heat exchange cavity 10a.

[0044] Wherein, the heat exchange tube 200 includes two sets of spiral tubes 210, a transition tube 220, and two sections of docking tubes 230. The two sets of spiral tubes 210 are respectively disposed on opposite sides of the electric heater 310 along the preset direction X. The transition tube 220 is connected between the two sets of spiral tubes 210. Each docking tube 230 communicates with one set of spiral tubes 210, and along the preset direction X, the two docking tubes 230 respectively extend from the corresponding spiral tubes 210 towards the same side of the two sets of spiral tubes 210.

[0045] The electric heater 310 is disposed between the two sets of spiral tubes 210 of the heat exchange tube 200 to heat the water between the two sets of spiral tubes 210. The electric heater 310 can more flexibly and efficiently heat the water in the heat exchange cavity 10a, increasing the heating rate and facilitating the control of the water temperature in the heat exchange cavity 10a. The two sets of spiral tubes 210 are respectively disposed on opposite sides of the electric heater 310, which is convenient for flexibly designing the structure of the spiral tubes 210, enabling the two sets of spiral tubes 210 to cover a larger area, increasing the contact area with water, enlarging the heat exchange area, improving the heat exchange efficiency, and also helping to improve the uniformity of the water temperature in each area of the heat exchange cavity 10a.

[0046] In the embodiments of the present application, the heat exchange medium existing in the heat exchange tube 200 enters and exits the heat exchange tube 200 from the two butt joints 230. The two butt joints 230 are arranged to extend along the preset direction X of the stacking of the two sets of spiral tubes 210. The heat exchange medium can also exchange heat in the heat exchange tube 200, which helps to further improve the uniformity of the water temperature distribution in the heat exchange cavity 10a in the preset direction X. Especially when there is a flowing heat exchange medium in the heat exchange tube 200, the flowing heat exchange medium enters the heat exchange tube 200 from one of the butt joints 230 and flows out of the heat exchange tube 200 from the other butt joint 230. After exchanging heat with the water in the heat exchange cavity 10a, there is a temperature difference between the heat exchange media in the two butt joints 230. By arranging the two butt joints 230 to extend towards the same side, the influence of the temperature difference on the uniformity of the water temperature distribution can be reduced. In addition, by arranging the two butt joints 230 to extend towards the same side along the preset direction X, more space can be conveniently planned to accommodate the butt joints 230 and the structural members connected to the butt joints 230, which helps to reduce the space occupied by the water tank perpendicular to the preset direction X.

[0047] The two sets of spiral tubes 210, the transition tube 220 and the two butt joints 230 of the heat exchange tube 200 are integrally arranged. For example, a single tube can be bent to form the two sets of spiral tubes 210, the transition tube 220 and the two butt joints 230; alternatively, multiple sections of tubes can be butt-jointed and welded together to form the two sets of spiral tubes 210, the transition tube 220 and the two butt joints 230. Among them, each part of the heat exchange tube 200 is made of a material with a high thermal conductivity such as metal to improve the heat exchange efficiency. For example, the two sets of spiral tubes 210, the transition tube 220 and the two butt joints 230 can be made of copper tubes, aluminum tubes or stainless steel tubes, etc. Among them, the materials of the two sets of spiral tubes 210, the transition tube 220 and the two butt joints 230 can be the same or different. For example, the two sets of spiral tubes 210, the transition tube 220 and the two butt joints 230 are all made of copper tubes, or the two sets of spiral tubes 210 and the transition tube 220 are made of copper tubes for easy processing, and the two butt joints 230 are made of stainless steel tubes to save the use cost and improve the installation stability of the butt joints 230 connected to other structural members and prevent the butt joints 230 from deforming.

[0048] In some embodiments, as Figure 1 shown, the two sets of spiral tubes 210 extend spirally in the same direction. The transition tube 220 is connected between the ends of the two sets of spiral tubes 210 facing each other. The two sets of butt joints 230 are respectively connected to the ends of the two sets of spiral tubes 210 away from each other. In this way, it is convenient to simplify the structure of the transition tube 220, reduce the number of bends of the transition tube 220, make the structure of the transition tube 220 smooth, and make the paths of the two sets of butt joints 230 extending along the preset direction X smooth, so as to reserve space between the two sets of spiral tubes 210 for installing other structural members such as the electric heater 310. In addition, it is also convenient for the heat exchange medium to flow smoothly in the heat exchange tube 200.

[0049] In some embodiments, one of the two docking pipes 230 is a first docking pipe 231. The first docking pipe 231 extends from the spiral pipe 210 connected thereto in a direction away from the other set of spiral pipes 210. The first docking pipe 231 does not pass through the spiral pipe 210 in the preset direction X, so that the first docking pipe 231 exchanges heat with the water on the same side of the two spiral pipes 210. The other of the two docking pipes 230 is a second docking pipe 230. The second docking pipe 230 bends from the spiral pipe 210 connected thereto to the middle area of the spiral pipe 210, extends toward the same side as the first docking pipe 231, and passes through the two sets of spiral pipes 210, so that the second docking pipe 230 is in the middle area surrounded by the two sets of spiral pipes 210 and can exchange heat with the water in the middle area surrounded by the two sets of spiral pipes 210, which helps to improve the uniformity of the water temperature in the heat exchange chamber 10a.

[0050] In some embodiments, the axial direction of the spiral pipe 210 is parallel to the preset direction X. In the direction perpendicular to the axial direction of the spiral pipe 210, the distance from the outer contour of the spiral pipe 210 to the inner wall surface of the inner container 100 is less than the distance from the inner contour of the spiral pipe 210 to the spiral center of the spiral pipe 210. Optionally, along the preset direction X, the projection of the first docking pipe 231 is located within the area defined by the outer contour of the spiral pipe 210. The second docking pipe 230 bends from the spiral pipe 210 connected thereto to the area defined by the outer contour of the spiral pipe 210 and passes through the two sets of spiral pipes 210, preventing the first docking pipe 231 and the second docking pipe 230 from protruding from the outer contour of the spiral pipe 210 in the direction perpendicular to the preset direction X, so that the heat exchange pipe 200 has a compact structure. During assembly, a structural frame can be set up, the two sets of spiral pipes 210 are installed on the structural frame, and then the structural frame is installed on the inner container 100 to fix the position of the heat exchange pipe 200 relative to the inner container 100, which is convenient for fixing the position of the connecting pipe 230 relative to the inner container 100.

[0051] In some embodiments, the heat exchange medium of the heat exchange pipe 200 is configured to enter from one of the first docking pipe 231 and the second docking pipe 230, sequentially pass through one section of the spiral pipe 210, the transition pipe 220, and the other section of the spiral pipe 210, and then flow out from the other of the first docking pipe 231 and the second docking pipe 230. For the convenience of description, the spiral pipe 210 connected to the first docking pipe 231 is denoted as the first spiral pipe 2101, and the spiral pipe 210 connected to the second docking pipe 230 is denoted as the second spiral pipe 2102.

[0052] Optionally, the heat exchange tube 200 is configured such that the heat exchange medium enters from the first docking tube 231, sequentially passes through the first spiral tube 2101, the transition tube 220, and the second spiral tube 2102, and then flows out from the second docking tube 230. The heat exchange medium flowing through the heat exchange tube 200 can sequentially exchange heat with the water around the first docking tube 231 - the first spiral tube 2101 - the transition tube 220 - the second spiral tube 2102 - the second docking tube 230. When the temperature of the heat exchange medium entering the first docking tube 231 is higher than the water temperature in the inner tank 100, the preset direction X can be set as the gravity direction, and the first docking tube 231 is located below the first spiral tube 2101 and the second spiral tube 2102 in the gravity direction, that is, the first docking tube 231 is in the lower region of the heat exchange chamber 10a. The high-temperature heat exchange medium entering the heat exchange tube 200 from the first docking tube 231 heats the water around the first docking tube 231, and the greater the temperature difference between the heat exchange medium in the first docking tube 231 and the water around the first docking tube 231, the faster the heat exchange rate. It can more efficiently heat the water around the first docking tube 231, and under the heat exchange effect of the floating hot flow and the sinking cold flow, it can uniformly heat the water in each region of the heat exchange chamber 10a.

[0053] Optionally, the heat exchange tube 200 is configured such that the heat exchange medium enters from the second docking tube 230, sequentially passes through the second spiral tube 2102, the transition tube 220, and the first spiral tube 2101, and then flows out from the first docking tube 231. The heat exchange medium flowing through the heat exchange tube 200 can sequentially exchange heat with the water around the second docking tube 230 - the second spiral tube 2102 - the transition tube 220 - the first spiral tube 2101 - the first docking tube 231. When the temperature of the heat exchange medium entering the second docking tube 230 is higher than the water temperature in the inner tank 100, the preset direction X can be set as the gravity direction. The first docking tube 231 is located above the first spiral tube 2101 and the second spiral tube 2102 in the gravity direction, and the second spiral tube 2102 is located below the first spiral tube 2101 in the gravity direction. The second docking tube 230 preferentially transports the high-temperature heat exchange medium to the second spiral tube 2102 in the lower position to heat the water around the second spiral tube 2102, and under the heat exchange effect of the floating hot flow and the sinking cold flow, it uniformly heats the water in the heat exchange chamber 10a. In addition, in the gravity direction, the first spiral tube 2101 and the second spiral tube 2102 are below the first docking tube 231, having a larger heat exchange area, and can more efficiently exchange heat with the water in the lower region of the heat exchange chamber 10a.

[0054] In some embodiments, each spiral tube 210 includes at least one section of spiral unit 211. Each spiral unit 211 includes a spiral starting point and a spiral ending point. When the spiral tube 210 includes multiple sections of spiral units 211, the multiple sections of spiral units 211 of the same spiral tube 210 are stacked and connected end to end along the preset direction X. The spiral starting point and the spiral ending point of the same spiral unit 211 are spaced apart and overlap in the preset direction X. Of course, in some other embodiments, the spiral starting point and the spiral ending point of the same spiral unit 211 are spaced apart and can also be offset in the preset direction X. Among them, in the preset direction X, the spiral starting point of one of the spiral units 211 located at the edge of the first spiral tube 2101 is connected to the first docking tube 231, and the spiral ending point of the other spiral unit 211 located at the edge is connected to one end of the transition tube 220. The spiral starting point of one of the spiral units 211 located at the edge of the second spiral tube 2102 is connected to the other end of the transition tube 220, and the spiral ending point of the other spiral unit 211 located at the edge is connected to the second docking tube 230.

[0055] When the spiral tube 210 includes multiple sections of spiral units 211, the heating range of the spiral tubes 210 on both sides of the electric heater 310 can be selected by setting the number of spiral units 211 included in the spiral tube 210, and then the heating height of the electric heater 310 relative to the inner tank 100 can be selected, so that the electric heater 310 and the heat exchange tube 200 can cooperate to more evenly and efficiently heat the water in the heat exchange cavity 10a. Optionally, when the first spiral tube 2101 is above the second spiral tube 2102 in the gravity direction and the heat exchange medium enters the heat exchange tube 200 from the second docking tube 230, or when the first spiral tube 2101 is below the second spiral tube 2102 in the gravity direction and the heat exchange medium enters the heat exchange tube 200 from the first docking tube 231, in these two cases, the number of spiral units 211 included in the first spiral tube 2101 can be greater than, less than or equal to the number of spiral units 211 included in the second spiral tube 2102, so that the electric heater 310 is in a suitable position in the heat exchange cavity 10a in the preset direction X. The embodiments of the present application do not limit the number of spiral units 211 included in the spiral tube 210 and the position of the electric heater 310 relative to the inner tank 100, and can be specifically selected according to actual needs. As Figure 1 shown, it is the case where the number of spiral units 211 included in the first spiral tube 2101 is greater than the number of spiral units 211 included in the second spiral tube 2102. As Figure 3 shown, it is the case where the number of spiral units 211 included in the first spiral tube 2101 is less than the number of spiral units 211 included in the second spiral tube 2102. As Figure 4 shown, it is the case where the number of spiral units 211 included in the first spiral tube 2101 is equal to the number of spiral units 211 included in the second spiral tube 2102.

[0056] In some embodiments, the spiral units 211 of the two sets of spiral tubes 210 are coaxially arranged so that the spiral tubes 210 can heat the water around them more evenly.

[0057] In some embodiments, the spiral angles of the spiral units 211 of the two sets of spiral tubes 210 are equal, which also facilitates the spiral tubes 210 to heat the water around them more evenly. For example, the spiral angle of the spiral unit 211 is α, where 0° < α ≤ 60°, so that the range of the spiral angle of the spiral unit 211 is appropriate to prevent the space between two adjacent spiral units 211 from being too large and reducing the heat exchange efficiency.

[0058] In some embodiments, the outer contour dimensions of the spiral units 211 of the two sets of spiral tubes 210 are equal, making the outer contours of the two sets of spiral tubes 210 regular without protruding structures. At the same time, it is convenient to arrange longer heat exchange tubes 200 in a limited space, increasing the heat exchange area and improving the heat exchange efficiency.

[0059] In some embodiments, the water tank further includes a functional device 300. The functional device 300 and the electric heater 310 are both arranged in the area between the two sets of spiral tubes 210, making full use of the installation space, which helps to reduce the volume of the water tank. At the same time, more heat exchange tubes 200 can be arranged in a limited space to increase the heat exchange efficiency. The functional device 300 includes at least one of a temperature detector 320 and a sacrificial electrode 330. The temperature detector 320 can sense the water temperature, and the water temperature between the two sets of spiral tubes 210 can be obtained according to the temperature detector 320, and the working state of the electric heater 310 can be controlled according to the obtained water temperature parameter. For example, when the water temperature is lower than the preset temperature, the electric heater 310 is controlled to turn on to heat the water, and when the water temperature is higher than the preset temperature, the electric heater 310 is controlled to turn off to stop heating the water. The sacrificial electrode 330 can contact the water in the heat exchange chamber 10a to protect the water in the heat exchange chamber 10a from eroding the heat exchange tubes 200 made of metal and the wall surface of the inner tank 100 made of metal. Optionally, the sacrificial electrode 330 is a magnesium rod, a magnesium alloy rod, etc. The embodiments of the present application do not limit the type of the sacrificial electrode 330, and any sacrificial electrode 330 that can be used in the inner tank 100 of the water tank in the art is applicable to the present application.

[0060] The functional device 300 is installed in the inner container 100. In some embodiments, the inner container 100 includes an inner container main body 110, and both the functional device 300 and the electric heater 310 are installed in the inner container main body 110. The inner container 100 further includes an upper inner container head 120 and a lower inner container head 130 that are oppositely arranged along a preset direction X. The inner container main body 110 is connected between the upper inner container head 120 and the lower inner container head 130. Two sets of spiral tubes 210 are arranged between the upper inner container head 120 and the lower inner container head 130 along the preset direction X, facilitating the functional device 300 and the electric heater 310 to extend into the area between the two sets of spiral tubes 210. When the preset direction X is the gravity direction, the upper inner container head 120 is located above the lower inner container head 130. Optionally, the inner container main body 110 is provided with a plurality of installation openings respectively corresponding to the functional device 300 and the electric heater 310 one by one. The functional device 300 passes through the corresponding installation opening and extends into the area between the two sets of spiral tubes 210 and is installed on the inner container main body 110, and the electric heater 310 passes through the corresponding installation opening and extends into the area between the two sets of spiral tubes 210 and is installed on the inner container main body 110.

[0061] In some embodiments, as Figure 5 shown, the water tank includes two heat exchange interfaces 410 installed on the inner container 100. Two docking pipes 230 extend along the preset direction X to be respectively connected to the two heat exchange interfaces 410 one by one, so that each docking pipe 230 is communicated with an external connection pipe through the corresponding heat exchange interface 410. Among them, the two sections of the docking pipe 230 extend along the preset direction X towards the upper inner container head 120 or the lower inner container head 130. Optionally, the first docking pipe 231 is arranged on one side of the two sets of spiral tubes 210 towards the upper inner container head 120 in the preset direction X, and the two sections of the docking pipe 230 (the first docking pipe 231 and the second docking pipe 230) extend along the preset direction X towards the upper inner container head 120. Correspondingly, the two heat exchange interfaces 410 are arranged on the upper inner container head 120, or the first docking pipe 231 is arranged on one side of the two sets of spiral tubes 210 towards the lower inner container head 130 in the preset direction X, and the two sections of the docking pipe 230 (the first docking pipe 231 and the second docking pipe 230) extend along the preset direction X towards the lower inner container head 130. Correspondingly, the two heat exchange interfaces 410 are arranged on the lower inner container head 130.

[0062] In some embodiments, the water tank includes a plurality of auxiliary connecting pipes 430 communicating with the heat exchange chamber 10a, and a plurality of auxiliary interfaces 420 respectively connected to the plurality of auxiliary connecting pipes 430. The plurality of auxiliary interfaces 420 are installed on the inner tank 100 so that each auxiliary connecting pipe 430 communicates with an external connecting pipe through the auxiliary interface 420. The water in the heat exchange chamber 10a can enter and exit the heat exchange chamber 10a through the auxiliary connecting pipe 430 and the auxiliary interface 420 to replace the water in the heat exchange chamber 10a. According to the relative positions of the docking pipe 230 and the spiral pipe 210 of the heat exchange pipe 200, a plurality of auxiliary interfaces 420 and two heat exchange interfaces 410 can be correspondingly arranged on the upper head 120 of the inner tank or on the lower head 130 of the inner tank. Some of the auxiliary connecting pipes 430 extend along a preset direction X to the middle area of the spiral pipe 210 to output the water in the middle area of the spiral pipe 210 from the heat exchange chamber 10a, or to convey the water transported by the external connecting pipe to the middle area of the spiral pipe 210.

[0063] In some embodiments, when the preset direction X is the gravity direction and the first docking pipe 231 is located above the two groups of spiral pipes 210 in the preset direction X, the plurality of auxiliary interfaces 420 and the two heat exchange interfaces 410 can be both installed on the upper head 120 of the inner tank. Optionally, one of the plurality of auxiliary interfaces 420 is a water inlet interface 421 and the other is a water outlet interface 422. The auxiliary connecting pipe 430 connected to the water inlet interface 421 extends into the middle area of a group of spiral pipes 210 far from the first docking pipe 231. The water in the external connecting pipe enters the heat exchange chamber 10a from the corresponding auxiliary connecting pipe 430 through the water inlet interface 421, and the water in the heat exchange chamber 10a flows out through the water outlet interface 422 for domestic use. Optionally, one of the plurality of auxiliary interfaces 420 is a water replenishing interface 423 and the other is a return water interface 423. Water can be replenished into the heat exchange chamber 10a through the water replenishing interface 423, and the water in the heat exchange chamber 10a can be discharged through the return water interface 423 to assist in adjusting the water volume in the heat exchange chamber 10a through the water replenishing interface 423 and the return water interface 423. Optionally, one of the plurality of auxiliary interfaces 420 can also be a circulation interface 425, and water can be replenished into the heat exchange chamber 10a from the circulation interface 425 to adjust the water temperature in the heat exchange chamber 10a.

[0064] In the embodiments of the present application, the water tank further includes a water tank outer shell. The inner tank 100 is arranged in the internal space of the water tank outer shell, and a heat insulation layer is filled in the gap between the water tank outer shell and the inner tank 100 to block heat exchange between the inner tank 100 and other structures, facilitating the control of the water temperature in the heat exchange chamber 10a. In the embodiments of the present application, there are no restrictions on the materials of the inner tank 100, the heat insulation layer, and the water tank outer shell. Any structures in the art that can be used for the water tank are applicable to the present application.

[0065] An embodiment of the present application further provides a hydraulic module, which includes a box body, a plurality of hydraulic devices, and a plurality of connecting pipes. The plurality of hydraulic devices are arranged in the internal space of the box body, and each hydraulic device is communicated with other structures of the hydraulic module through at least one connecting pipe. Among them, one of the plurality of hydraulic devices is the water tank as described above. Optionally, one of the plurality of hydraulic devices is an expansion pipe, one is a water pump, and the other is a heat exchanger. The heat exchanger is communicated with the heat exchange pipe 200 of the water tank. The heat exchanger is used to absorb the heat supplied by the heat source module to supply the heat to the heat exchange medium, and supply the heat exchange medium to the heat exchange pipe 200, so that the heat exchange medium in the heat exchange pipe 200 exchanges heat with the water in the heat exchange cavity 10a. The expansion pipe and the water pump are arranged on the pipeline communicated with the heat exchange pipe 200. The expansion pipe is used to adjust the pressure of the heat exchange medium in the heat exchange pipe 200 and the pipeline communicated with the heat exchange pipe 200, and the water pump is used to adjust the smoothness of the flow of the heat exchange medium in the heat exchange pipe 200 and the pipeline communicated with the heat exchange pipe 200.

[0066] The heat exchange medium described in the embodiment of the present application includes, but is not limited to, water. Any material that can be used as a heat exchange medium in the art is applicable to the present application.

[0067] An embodiment of the present application further provides a heat pump system, which includes the hydraulic module as described above, and further includes a heat source module and a consumption module. The heat source module is used to supply heat to the heat exchanger of the hydraulic module, and the consumption module is communicated with the heat exchange cavity 10a of the inner tank 100 of the hydraulic module to receive the water in the heat exchange cavity 10a.

[0068] In the drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0069] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A water tank, characterized in that, Comprising: An inner tank having a heat exchange chamber for storing water; An electric heater disposed in the heat exchange chamber to heat the water in the heat exchange chamber; And A heat exchange tube disposed in the heat exchange chamber to exchange heat with the water in the heat exchange chamber; Wherein, the heat exchange tube includes two groups of spiral tubes, a transition tube, and two docking tubes. The two groups of spiral tubes are respectively disposed on opposite sides of the electric heater along a preset direction. The transition tube is connected between the two groups of spiral tubes. Each docking tube communicates with one group of spiral tubes, and along the preset direction, the two docking tubes respectively extend from the corresponding spiral tube towards the same side of the two groups of spiral tubes.

2. The water tank according to claim 1, characterized in that, The two groups of spiral tubes extend spirally in the same direction. The transition tube is connected between the ends of the two groups of spiral tubes facing each other. The two docking tubes are respectively connected to the ends of the two groups of spiral tubes away from each other in a one-to-one correspondence.

3. The water tank according to claim 2, wherein One of the two docking tubes is a first docking tube, and the first docking tube extends from the spiral tube it is connected to in a direction away from the other group of spiral tubes; The other of the two docking tubes is a second docking tube, and the second docking tube bends from the spiral tube it is connected to to the middle area of the spiral tube to extend towards the same side as the first docking tube and passes through the two groups of spiral tubes.

4. The water tank according to claim 3, characterized in that, The heat exchange tube is configured such that the heat exchange medium enters from one of the first docking tube and the second docking tube, sequentially passes through one section of the spiral tube, the transition tube, and the other section of the spiral tube, and then flows out from the other of the first docking tube and the second docking tube.

5. The water tank according to claim 1, characterized in that, Each spiral tube includes at least one section of spiral unit, and when the spiral tube includes multiple sections of spiral units, the multiple sections of spiral units of the same spiral tube are stacked and connected end to end along the preset direction; wherein, The spiral units of the two groups of spiral tubes are coaxially arranged; and / or, The spiral angles of the spiral units of the two groups of spiral tubes are equal; and / or, The outer contour dimensions of the spiral units of the two groups of spiral tubes are equal.

6. The water tank according to claim 1, characterized in that, The water tank further includes a functional device, and the functional device and the electric heater are both disposed in the area between the two groups of spiral tubes; The functional device includes at least one of a temperature detector and a consumption electrode.

7. The water tank according to claim 6, wherein The inner tank includes an upper inner tank head and a lower inner tank head oppositely arranged along a preset direction, and the two docking tubes extend towards the upper inner tank head or the lower inner tank head along the preset direction; The inner tank further includes an inner tank body connected between the upper inner tank head and the lower inner tank head, and the functional device and the electric heater are respectively installed on the inner tank body.

8. The water tank according to claim 1, characterized in that, The water tank includes two heat exchange interfaces installed on the inner tank, and the two docking tubes extend to be respectively connected to the two heat exchange interfaces in a one-to-one correspondence, so that each docking tube communicates with an external connection pipe through the corresponding heat exchange interface.

9. The water tank according to claim 1, characterized in that, The water tank includes a plurality of auxiliary connecting pipes communicated with the heat exchange chamber, and a plurality of auxiliary interfaces respectively connected to the plurality of auxiliary connecting pipes one by one, and the auxiliary interfaces are installed on the inner tank so that each of the auxiliary connecting pipes is communicated with an external connecting pipe through the auxiliary interface; Some of the auxiliary connecting pipes extend along a preset direction to extend into the middle area of the spiral pipe.

10. A hydraulic module, characterized in that, Comprising: A plurality of hydraulic devices, one of which is the water tank according to any one of claims 1-9; And A plurality of connecting pipes, and each of the hydraulic devices is communicated with other hydraulic devices through at least one of the connecting pipes.

11. A heat pump system, characterized in that, Comprising the hydraulic module according to claim 10.

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