Washing equipment

Abstract

The utility model discloses washing equipment, which comprises a water tank, a water pump and a water pump, the water tank is used for supplying water to the washing tank, the bottom of the washing tank is connected with a circulating water pipeline, and a first filtering structure is arranged at an inlet of the circulating water pipeline; and the heat exchange pipeline communicates with the circulating water pipeline and the heat exchanger, the heat exchange pipeline is suitable for exchanging heat with water in the water tank through the heat exchanger, and a second filtering structure is arranged at an inlet of the heat exchange pipeline. According to the washing equipment disclosed by the embodiment of the utility model, hot water after washing in the washing box and water stored in the water tank can be subjected to heat exchange, so that waste heat recovery is realized, the energy consumption of the washing equipment is further reduced, and the energy-saving property is improved; the situation that hot water after washing directly flows into the heat exchanger due to failure of the first filtering structure can be avoided, the operation reliability of the heat exchanger is guaranteed, and the second filtering structure is simple in structure, low in setting cost, better in use effect and wider in application range.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a washing device. Background Technology

[0002] As people's living standards improve, their demand for electrical appliances in daily life is gradually increasing, and their requirements for ease of use and energy efficiency are also rising. Some households now install dishwashers in kitchens and other areas for automatic cleaning of dishes. In related technologies, dishwashers can be equipped with heat exchangers for waste heat recovery. The hot water after washing in the tank can directly exchange heat with the remaining washing medium to achieve waste heat recovery. However, some users fail to reset the filter structure after cleaning the dishwasher, causing hot water containing impurities to flow directly into the heat exchanger, damaging it. This indicates room for improvement. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a washing device that can recover waste heat, improve energy efficiency, reduce energy consumption, ensure the reliability of heat exchanger operation, has a simple structure, and low installation cost.

[0004] The washing device according to an embodiment of the present invention includes: a water tank, wherein a heat exchanger is provided inside the water tank; a washing tank, wherein the water tank is used to supply water to the washing tank, a circulating water pipeline is connected to the bottom of the washing tank, and a first filter structure is provided at the inlet of the circulating water pipeline; a heat exchange pipeline, wherein the heat exchange pipeline is connected to the circulating water pipeline and to the heat exchanger, and the heat exchange pipeline is adapted to exchange heat with the water in the water tank through the heat exchanger, and a second filter structure is provided at the inlet of the heat exchange pipeline.

[0005] According to the washing equipment of this utility model embodiment, a heat exchanger is provided in the water tank, which allows the hot water after washing in the washing tank to exchange heat with the water still in the tank, so as to realize waste heat recovery, thereby reducing the energy consumption of the washing equipment and improving energy efficiency. In addition, a second filter structure is provided to prevent the hot water after washing from flowing directly into the heat exchanger due to the failure of the first filter structure, thus ensuring the operational reliability of the heat exchanger. Moreover, the second filter structure is simple in structure, low in installation cost, better in use, and has a wider range of applications.

[0006] The washing device according to some embodiments of the present invention further includes: a connecting pipe, the connecting pipe including a main pipe cavity and a branch pipe cavity, the branch pipe cavity communicating with the peripheral wall of the main pipe cavity, the main pipe cavity being connected in series in the circulating water pipeline, the branch pipe cavity communicating with the heat exchange pipeline, and the second filter structure being installed in the branch pipe cavity or at the connection between the main pipe cavity and the branch pipe cavity.

[0007] According to some embodiments of the washing device of the present invention, the second filter structure includes a filter part and a mounting part, the filter part is connected to the mounting part, the mounting part is connected to the inner wall of the branch cavity, and the filter part has a second filter hole communicating with the branch cavity.

[0008] According to some embodiments of the washing device of the present invention, the mounting part is cylindrical in shape, a filter cavity is formed inside the mounting part, the extension direction of the filter cavity is the same as the extension direction of the branch pipe cavity, the filter part is located at the inlet end of the filter cavity, and the filter cavity is connected to the second filter hole.

[0009] According to some embodiments of the washing device of the present invention, the inlet end of the branch pipe cavity is provided with an installation groove, the second filter structure is disposed in the installation groove, and the surface of the filter part facing the main pipe cavity is flush with the inner wall surface of the main pipe cavity.

[0010] According to some embodiments of the washing device of the present invention, the second filter structure is provided with a first snap-fit ​​part, and the inner wall of the branch cavity is provided with a second snap-fit ​​part. The first snap-fit ​​part and the second snap-fit ​​part are snap-fitted together and are limited along the axial direction of the branch cavity.

[0011] According to some embodiments of the washing equipment of the present invention, a washing pump is provided in the circulating water pipeline, and the branch pipe cavity is located downstream of the washing pump.

[0012] According to some embodiments of the washing equipment of the present invention, a first control valve is provided in the heat exchange pipeline, and a second control valve is provided between the washing pump and the washing spray arm of the washing tank, wherein one of the first control valve and the second control valve is set to be closed and the other is set to be open.

[0013] According to some embodiments of the washing device of the present invention, the first filter structure is provided with a first filter hole, the second filter structure is provided with a second filter hole, and the diameter of the second filter hole is larger than the diameter of the first filter hole.

[0014] According to some embodiments of the washing device of the present invention, the aperture of the second filter hole is smaller than the aperture of the water inlet of the heat exchanger.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a cross-sectional view of the connecting pipe and the second filter structure according to an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the second filter structure according to an embodiment of the present utility model;

[0019] Figure 3 This is a cross-sectional view of the second filter structure according to an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the connecting pipe according to an embodiment of the present utility model;

[0021] Figure 5 This is a cross-sectional view of the connecting pipe according to an embodiment of the present utility model;

[0022] Figure 6 This is a partial structural schematic diagram of a washing device according to an embodiment of the present utility model;

[0023] Figure 7 This is a simplified structural diagram of a washing device according to an embodiment of the present utility model.

[0024] Figure label:

[0025] Washing equipment 100, water tank 101, washing tank 102, washing space 1021, washing spray arm 103.

[0026] Circulating water pipeline 1, first filter structure 11, first filter hole 111, heat exchange pipeline 2,

[0027] Connecting pipe 3, main pipe cavity 31, branch pipe cavity 32, mounting groove 321, second snap-fit ​​part 322.

[0028] Second filter structure 4, filter part 41, second filter hole 411, mounting part 42, filter chamber 421, first snap-fit ​​part 422, washing pump 5, first control valve 6, second control valve 7, heat exchanger 8, water cup structure 9. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The following is for reference. Figures 1-7 The washing equipment 100 according to the embodiments of the present utility model can realize waste heat recovery, improve energy efficiency, reduce energy consumption, and ensure the reliable operation of the heat exchanger 8. It has a simple structure and low installation cost.

[0033] like Figures 1-7 As shown, a washing device 100 according to an embodiment of the present invention includes: a water tank 101, a washing tank 102, and a heat exchange pipeline 2.

[0034] A heat exchanger 8 is provided inside the water tank 101. The water tank 101 is used to supply water to the washing tank 102. The bottom of the washing tank 102 is connected to a circulating water pipe 1. A first filter structure 11 is provided at the inlet of the circulating water pipe 1. The heat exchange pipe 2 is connected to the circulating water pipe 1 and the heat exchange pipe 2 is connected to the heat exchanger 8. The heat exchange pipe 2 is suitable for exchanging heat with the water in the water tank 101 through the heat exchanger 8. A second filter structure 4 is provided at the inlet of the heat exchange pipe 2.

[0035] The washing equipment 100 can be configured as a dishwasher, which is an automatic cleaner for dishes such as bowls, chopsticks, plates, dishes, knives, and forks. Dishwashers can be cabinet-style, countertop-style, or integrated with a sink to meet the needs of different scenarios. Dishwashers can integrate washing, disinfection, and drying functions, which can reduce labor intensity, improve hygiene, and have a short cleaning time, thereby improving work efficiency and enabling on-demand washing, thus improving ease of use and user experience.

[0036] Specifically, the washing equipment 100 is equipped with a water tank 101, which has a storage space inside. Water and other media can be supplied to the storage space through pipes, and can then be used to clean tableware and other items. The pipes can be equipped with an inlet valve and a water softener to improve the quality of the incoming water and control the opening and closing of the water supply. The water tank 101 can also be connected to a filter and a water outlet to provide drinking water to users, meeting different usage needs and improving the integration of the washing equipment 100. It is also equipped with a washing tank 102, which forms a washing space 1021. Users can place items to be cleaned in the washing space 1021. A washing spray arm 103 is provided in the washing space 1021. A water tank 101 can be used to supply water to the washing spray arm 103 in the washing tank 102. A drain valve is provided between the water tank 101 and the washing tank 102. When the drain valve is opened, water mixed with cleaning solution can be sprayed out from the washing spray arm 103 to clean the items and improve the automation of cleaning.

[0037] Furthermore, the water flowing to the washing spray arm 103 can be heated water to improve the cleaning effect on the items. A heat exchanger 8 is installed in the water tank 101, which can be connected to the washing tank 102. This allows the hot water after cleaning the items to flow into the heat exchanger 8. The water in the water tank 101 can exchange heat with the hot water in the washing tank 102 after washing through the heat exchanger 8, so as to store the heat in the water tank 101 and realize the recovery of waste heat. This can reduce the energy consumption of the washing equipment 100, improve the energy efficiency of the washing equipment 100, and thus ensure the environmental protection of the washing equipment 100 and improve the user experience.

[0038] Meanwhile, the bottom of the washing tank 102 is connected to a circulating water pipe 1. The hot water after washing in the washing tank 102 can flow to the bottom of the washing tank 102 under the action of gravity, and then flow to the other structures through the circulating water pipe 1. A first filter structure 11 is provided at the inlet of the circulating water pipe 1. The first filter structure 11 can be set as a filter screen or filter tank, etc. The hot water after washing the items contains impurities cleaned from the items. The first filter structure 11 can filter the impurities to ensure the cleanliness of the hot water after washing and prevent the hot water from flowing into the heat exchanger 8 and clogging the heat exchanger 8, thereby ensuring the reliability of the heat exchanger 8. The first filter structure 11 can be disassembled relative to the washing tank 102 to facilitate the cleaning of the washing tank 102 and improve the convenience of use.

[0039] In addition, the washing equipment 100 is equipped with a heat exchange pipe 2. One end of the heat exchange pipe 2 can be connected to the circulating water pipe 1, that is, the hot water in the circulating water pipe 1 can flow into the heat exchange pipe 2. The other end of the heat exchange pipe 2 is connected to the heat exchanger 8, so that the hot water after washing in the washing tank 102 can flow through the circulating water pipe 1 to the heat exchange pipe 2, and then through the heat exchange pipe 2 to the heat exchanger 8, so as to exchange heat with the water in the water tank 101 through the heat exchanger 8. A second filter structure 4 is provided at the inlet of the heat exchange pipe 2. Structure 4 can also be configured as a filter screen or filter tank, etc. When the user cleans the washing tank 102 and fails to reset the first filter structure 11 or the first filter structure 11 is damaged, the hot water flowing to the heat exchange pipeline 2 can be filtered through the second filter structure 4 first, thereby ensuring that the hot water after washing is filtered, avoiding impurities in the hot water from clogging the heat exchanger 8, ensuring the operational reliability of the heat exchanger 8, and improving the reliability of the first filter structure 11 and the second filter structure 4, ensuring the normal operation of the washing equipment 100.

[0040] According to the embodiment of the present invention, the washing equipment 100 is provided with a heat exchanger 8 in the water tank 101, which allows the hot water after washing in the washing tank 102 to exchange heat with the water still in the water tank 101, so as to realize waste heat recovery, thereby reducing the energy consumption of the washing equipment 100 and improving energy efficiency. In addition, a second filter structure 4 is provided to prevent the hot water after washing from flowing directly into the heat exchanger 8 due to the failure of the first filter structure 11, thus ensuring the operational reliability of the heat exchanger 8. Furthermore, the second filter structure 4 has a simple structure, low installation cost, better performance, and wider applicability.

[0041] In some embodiments, the washing device 100 further includes a connecting pipe 3, which includes a main pipe cavity 31 and a branch pipe cavity 32. The branch pipe cavity 32 is connected to the peripheral wall of the main pipe cavity 31. The main pipe cavity 31 is connected in series in the circulating water pipeline 1, and the branch pipe cavity 32 is connected to the heat exchange pipeline 2. The second filter structure 4 is installed in the branch pipe cavity 32 or at the connection between the main pipe cavity 31 and the branch pipe cavity 32.

[0042] Specifically, heat exchange pipe 2 is connected to circulating water pipe 1, allowing the hot water after washing to flow from circulating water pipe 1 to heat exchange pipe 2, and as... Figure 6 As shown, the washing equipment 100 is also equipped with a connecting pipe 3. The heat exchange pipe 2 is connected to the outlet water pipe and the circulating water pipe 1 through the connecting pipe 3. That is, the hot water after washing in the outlet water pipe and the circulating water pipe 1 can flow to the connecting pipe 3, and then flow to the heat exchange pipe 2 through the connecting pipe 3. Figure 1 and Figures 4-5 As shown, the connecting pipe 3 is provided with a main pipe cavity 31 and a branch pipe cavity 32. The main pipe cavity 31 can be connected in series in the circulating water pipeline 1, that is, both ends of the main pipe cavity 31 are connected to the circulating water pipeline 1, and the hot water after washing in the circulating water pipeline 1 can flow through the main pipe cavity 31.

[0043] Furthermore, the branch pipe cavity 32 is connected to the peripheral wall of the main pipe cavity 31, allowing hot water in the main pipe cavity 31 to flow into the branch pipe cavity 32. The branch pipe cavity 32 is also connected to the heat exchange pipeline 2, allowing hot water in the main pipe cavity 31 to flow into the heat exchange pipeline 2 through the branch pipe cavity 32. This allows the connecting pipe 3 to be used as a tee pipe to change the flow direction of hot water in the circulating water pipeline 1. The structure is simple and can ensure the reliability of the connection between the circulating water pipeline 1 and the heat exchange pipeline 2.

[0044] In addition, the second filter structure 4 can be installed in the branch pipe cavity 32 or at the connection between the main pipe cavity 31 and the branch pipe cavity 32. That is, the hot water flowing into the main pipe cavity 31 can partially flow into the branch pipe cavity 32. The second filter structure 4 is provided in the branch pipe cavity 32 or at the connection between the main pipe cavity 31 and the branch pipe cavity 32 to filter the hot water. The branch pipe cavity 32 is connected to the heat exchange pipeline 2, which can ensure the cleanliness of the hot water entering the heat exchange pipeline 2 and prevent impurities from flowing into the heat exchanger 8 together with the hot water, thus ensuring the reliability of the operation of the heat exchanger 8.

[0045] In some embodiments, the second filter structure 4 includes a filter section 41 and a mounting section 42. The filter section 41 is connected to the mounting section 42, and the mounting section 42 is connected to the inner wall of the branch cavity 32. The filter section 41 has a second filter hole 411 communicating with the branch cavity 32.

[0046] Specifically, the second filter structure 4 is disposed within the branch pipe cavity 32 to filter the hot water flowing into the branch pipe cavity 32, and as follows: Figures 1-3As shown, the second filter structure 4 is provided with a filter part 41 and a mounting part 42. The filter part 41 and the mounting part 42 can be connected by means of integral molding or other methods. The mounting part 42 is connected to one side of the filter part 41 and can be arranged around the filter part 41. The mounting part 42 is connected to the inner wall of the branch cavity 32. In actual installation, the mounting part 42 can be connected to the inner wall of the branch cavity 32 by means of snap-fit ​​or other methods, so that the second filter structure 4 as a whole can be fixed to the inner wall of the branch cavity 32.

[0047] Thus, one end of the mounting part 42 can be connected to the inner wall of the branch pipe cavity 32, and the other end of the mounting part 42 can be connected to the filter part 41. That is, the filter part 41 is set away from the connection point, and the filter part 41 is provided with a second filter hole 411. Multiple second filter holes 411 can be provided, and multiple second filter holes 411 are distributed in an array to filter impurities in hot water, ensure the cleanliness of hot water, and thus ensure the reliable operation of the heat exchanger 8.

[0048] In some embodiments, the mounting portion 42 is cylindrical, and a filter cavity 421 is formed inside the mounting portion 42. The extending direction of the filter cavity 421 is the same as the extending direction of the branch cavity 32. The filter portion 41 is located at the inlet end of the filter cavity 421, and the filter cavity 421 is connected to the second filter hole 411.

[0049] Specifically, the mounting part 42 is connected to the filter part 41, and the mounting part 42 is arranged around the filter part 41. That is, the mounting part 42 can be constructed as a cylindrical structure, so that a columnar filter cavity 421 can be formed inside the mounting part 42. The second filter structure 4 is installed in the branch cavity 32, and the mounting part 42 is connected to the inner wall of the branch cavity 32. The outer peripheral wall of the mounting part 42 is also fitted to the inner peripheral wall of the branch cavity 32, which can ensure the sealing of the connection between the second filter structure 4 and the branch cavity 32, avoid impurities from remaining, and prevent odors, thus improving the user experience.

[0050] Furthermore, the extension direction of the filter chamber 421 is set to be the same as the extension direction of the branch pipe chamber 32, so that the hot water in the filter chamber 421 does not change its flow direction when it flows into the branch pipe chamber 32, thereby avoiding energy consumption of the hot water flow and affecting the water flow rate, which can reduce the energy consumption of the washing equipment 100 when delivering hot water and improve energy efficiency.

[0051] Furthermore, the filter section 41 is located at the inlet end of the filter chamber 421, and the filter chamber 421 can communicate with the second filter hole 411. That is, the filter section 41 is connected to the end of the mounting section 42 near the main pipe chamber 31, so that the hot water flowing from the main pipe chamber 31 into the branch pipe chamber 32 can first flow to the filter section 41 for filtration, and the filtered hot water can flow through the second filter hole 411 into the filter chamber 421, and then flow through the filter chamber 421 into the branch pipe chamber 32. This ensures the filtration effect of the filter section 41, and thus ensures the reliability of the second filter structure 4.

[0052] In some embodiments, the inlet end of the branch cavity 32 is provided with a mounting groove 321, the second filter structure 4 is disposed in the mounting groove 321, and the surface of the filter part 41 facing the main cavity 31 is flush with the inner wall surface of the main cavity 31.

[0053] Specifically, the peripheral walls of the branch lumen 32 and the main lumen 31 are connected, and the second filter structure 4 can be installed inside the branch lumen 32, and as shown... Figure 5 As shown, the inlet end of the branch pipe cavity 32 is provided with an installation groove 321. The second filter structure 4 is configured to match the installation groove 321, so that the second filter structure 4 can be installed in the installation groove 321. The outer peripheral wall of the second filter structure 4 can be fitted with the inner peripheral wall of the installation groove 321. This can prevent impurities from remaining between the second filter structure 4 and the installation groove 321 when hot water flows through the branch pipe cavity 32 after being filtered by the second filter structure 4, thus affecting the cleanliness of the connecting pipe 3 and preventing the generation of odors in the connecting pipe 3.

[0054] Furthermore, the mounting groove 321 is provided at the inlet end of the branch pipe cavity 32, and the mounting groove 321 is recessed towards the branch pipe cavity 32, that is, the mounting groove 321 extends towards the branch pipe cavity 32, so that the mounting part 42 of the second filter structure 4 can be placed in the mounting groove 321, so as to radially limit the second filter structure 4 through the mounting groove 321 and ensure the installation reliability of the second filter structure 4.

[0055] Furthermore, the surface of the filter section 41 facing the main tube cavity 31 is flush with the inner wall surface of the main tube cavity 31, such as... Figures 1-2 As shown, the surface of the filter section 41 away from the branch pipe cavity 32 can be set as an arc-shaped surface. The main pipe cavity 31 is constructed as a cylindrical structure, so that after the second filter structure 4 is installed in the mounting groove 321, the filter section 41 can form a complete arc-shaped surface with the inner wall surface of the main pipe cavity 31. This allows the water in the main pipe cavity 31 to flush the filter section 41 when it flows, reducing the risk of clogging. The complete arc-shaped surface can also reduce the resistance to water flow, ensuring the flow rate of water and reducing operating energy consumption.

[0056] In some embodiments, the second filter structure 4 is provided with a first snap-fit ​​portion 422, and the inner wall of the branch cavity 32 is provided with a second snap-fit ​​portion 322. The first snap-fit ​​portion 422 and the second snap-fit ​​portion 322 are snap-fitted together and are limited along the axial direction of the branch cavity 32.

[0057] Specifically, the second filter structure 4 is installed inside the branch pipe cavity 32, and as follows: Figures 1-5As shown, the second filter structure 4 is provided with a first snap-fit ​​portion 422, which is located at the end of the mounting portion 42 away from the filter portion 41. The first snap-fit ​​portion 422 is located on the outer peripheral wall of the mounting portion 42 and protrudes radially outward. The first snap-fit ​​portion 422 can be configured as a snap-fit ​​protrusion or a snap-fit ​​ring, etc. The inner wall of the branch cavity 32 is provided with a second snap-fit ​​portion 322, which can be configured as a snap-fit ​​groove or annular groove, etc. When the second filter structure 4 is installed in the branch cavity 32, the first snap-fit ​​portion 422 can be placed in the second snap-fit ​​portion 322. Since the first snap-fit ​​portion 422 protrudes radially outward, the first snap-fit ​​portion 422 and the second snap-fit ​​portion 322 can be axially limited. The inner peripheral wall of the branch cavity 32 can radially limit the second filter structure 4, thereby allowing the second filter structure 4 to be fixedly installed in the branch cavity 32. The structure is simple and the installation is convenient.

[0058] In this embodiment, the first snap-fit ​​portion 422 is configured as an annular protrusion, and the second snap-fit ​​portion 322 is configured as an annular groove, so that the mounting portion 42 can be axially limited at various points along the circumferential direction, thereby ensuring the reliability of the snap-fit ​​engagement between the first snap-fit ​​portion 422 and the second snap-fit ​​portion 322.

[0059] In some embodiments, a washing pump 5 is provided in the circulating water pipeline 1, and the branch pipe cavity 32 is located downstream of the washing pump 5.

[0060] Specifically, a washing pump 5 is also installed in the circulating water pipeline 1. The washing pump 5 is connected in series in the circulating water pipeline 1. The washing pump 5 can transport the hot water in the circulating water pipeline 1 after being filtered by the first filter structure 11, so that the hot water at the bottom of the washing tank 102 can flow to structures such as the heat exchanger 8. Figure 6 As shown, the branch pipe cavity 32 is located downstream of the washing pump 5. That is, the hot water in the washing tank 102 can be transported to the washing pump 5 through the circulating water pipeline 1. The washing pump 5 can transport the hot water, so that the hot water can flow through the main pipe cavity 31 to the branch pipe cavity 32, and then flow through the hot water exchange circuit to the heat exchanger 8 to exchange heat with the water in the water tank 101.

[0061] One end of the main chamber 31 of the connecting pipe 3 is connected to the washing pump 5, and the other end is connected to the washing spray arm 103, so that the hot water at the bottom of the washing tank 102 can flow to the main chamber 31 through the washing pump 5, and then flow to the washing spray arm 103 to circulate and clean the items to be cleaned, thereby improving the cleaning effect.

[0062] Furthermore, the washing pump 5 can also be equipped with a heating function, so that the washing pump 5 can heat the water flow while delivering the water flow. Clean water from the outside can flow directly to the washing pump 5, be heated by the washing pump 5, and then be delivered to the washing spray arm 103 to clean the items in the washing space 1021, thereby improving the integration of the structure.

[0063] In actual setup, a water cup structure 9 can be installed below the washing tank 102. The water cup structure 9 can temporarily store the hot water after washing, and the first filter structure 11 can also be installed inside the water cup structure 9, so that the hot water filtered inside the water cup structure 9 can be discharged through the circulating water pipe 1, ensuring operational reliability.

[0064] In some embodiments, a first control valve 6 is provided in the heat exchange pipeline 2, and a second control valve 7 is provided between the washing pump 5 and the washing spray arm 103 of the washing tank 102. One of the first control valve 6 and the second control valve 7 is set to be closed and the other is set to be open.

[0065] Specifically, the bottom of the washing tank 102 is connected to the circulating water pipe 1, and the circulating water pipe 1 is connected to the heat exchange pipe 2. This allows the hot water after washing in the washing tank 102 to flow through the circulating water pipe 1 to the heat exchange pipe 2, and then through the heat exchange pipe 2 to the heat exchanger 8. The heat exchange pipe 2 is equipped with a first control valve 6, which can be used to control the connection state between the heat exchange pipe 2 and the circulating water pipe 1. That is, when the first control valve 6 is open, the heat exchange pipe 2 can be connected to the circulating water pipe 1 through the connecting pipe 3. When the first control valve 6 is closed, the heat exchange pipe 2 is disconnected from the circulating water pipe 1.

[0066] Furthermore, a second control valve 7 is provided between the washing pump 5 and the washing spray arm 103 of the washing tank 102. The second control valve 7 can be set as a water distribution valve. The washing spray arm 103 can be provided in the washing tank 102. The washing spray arm 103 is provided with an upper spray arm, a middle spray arm and a lower spray arm. The water distribution valve can be connected to the upper spray arm, the middle spray arm and the lower spray arm respectively. The lower spray arm is used to realize the lower spray arm spray washing, the middle spray arm is used to realize the middle spray arm spray washing, and the upper spray arm is used to realize the upper spray arm spray washing. The water distribution valve can be used to switch the water path.

[0067] The water distribution valve can control the water flow to enter the lower spray arm, the middle spray arm, or the upper spray arm separately. At the same time, the water distribution valve can also control the water flow to two of the upper, middle, and lower spray arms, or it can control the water flow to all three spray arms. This allows for selective cleaning of different parts of the item, improving cleaning flexibility. The water distribution valve can also be completely closed, thereby cutting off the connection between the circulating water pipe 1 and the washing spray arm 103 in the washing tank 102.

[0068] In addition, one of the first control valve 6 and the second control valve 7 is set to be closed and the other is set to be open. That is, the circulating water pipeline 1 can be connected to the heat exchange pipeline 2, or the circulating water pipeline 1 can be connected to the washing spray arm 103 in the washing tank 102, so that the waste heat recovery process and the washing process are carried out separately, avoiding interference between them and ensuring operational reliability.

[0069] In some embodiments, the first filter structure 11 is provided with a first filter hole 111, and the second filter structure 4 is provided with a second filter hole 411, wherein the diameter of the second filter hole 411 is larger than the diameter of the first filter hole 111.

[0070] Specifically, the first filter structure 11 is located at the inlet of the circulating water pipe 1, so that the hot water after washing the items in the washing tank 102 can be filtered through the first filter structure 11, and then the filtered hot water can flow into the circulating water pipe 1. The first filter structure 11 can be a filter screen, etc., and the first filter structure 11 is provided with first filter holes 111. Multiple first filter holes 111 can be provided, and multiple first filter holes 111 can be arranged in an array to filter impurities in the hot water, ensure the cleanliness of the hot water, and ensure the flow of water, thereby ensuring the operational reliability of the downstream structure of the circulating water pipe 1.

[0071] Furthermore, the second filter structure 4 is also provided with a second filter hole 411. The second filter hole 411 is provided in the filter part 41 of the second filter structure 4, and multiple second filter holes 411 can be provided. Multiple second filter holes 411 can be arranged in an array to filter impurities in hot water, ensure the cleanliness of hot water, and ensure the flow of water. In this way, the filtered hot water can be prevented from flowing directly into the heat exchanger 8 in the event of failure of the first filter structure 11, thus ensuring the operational reliability of the heat exchanger 8.

[0072] In addition, the aperture of the second filter hole 411 is set to be larger than that of the first filter hole 111. That is, the aperture of the first filter hole 111 is set to be smaller and the aperture of the second filter hole 411 is set to be larger. The first filter structure 11 is set inside the washing tank 102 for easy cleaning. Setting the aperture of the first filter hole 111 to be smaller can ensure the filtration effect of the hot water after washing, thereby avoiding the accumulation of impurities at the second filter hole 411 and ensuring the operational reliability of the branch pipe cavity 32.

[0073] In some embodiments, the aperture of the second filter hole 411 is smaller than the aperture of the water inlet of the heat exchanger 8.

[0074] Specifically, the aperture of the second filter hole 411 is set to be smaller than the aperture of the inlet of the heat exchanger 8. That is, the aperture of the inlet of the heat exchanger 8 is set to be larger, while the aperture of the second filter hole 411 is set to be smaller. When the user does not reset the first filter structure 11, hot water containing impurities can flow through the circulating water pipe 1 to the connecting pipe 3, and then be filtered through the second filter hole 411 of the second filter structure 4. Setting the aperture of the second filter hole 411 to be smaller can ensure the filtration effect of hot water, thereby avoiding the accumulation of impurities at the inlet of the heat exchanger 8, which could lead to blockage of the inlet of the heat exchanger 8 and other problems, thus ensuring the operational reliability of the heat exchanger 8.

[0075] The specific process of hot water circulation is as follows: the hot water after washing in the washing tank 102 can be temporarily stored in the water cup structure 9. When hot water circulation is required, the hot water in the water cup structure 9 can be filtered through the first filter structure 11 and then flow to the washing pump 5 through the circulating water pipe 1. The washing pump 5 can deliver the hot water to the connecting pipe 3. When the second control valve 7 is closed, the first control valve 6 is opened, thereby connecting the connecting pipe 3 with the heat exchange pipe 2. The filtered hot water can flow to the heat exchanger 8 to exchange heat with the water in the water tank 101 to store the heat in the water tank 101, thereby realizing waste heat recovery. The water after heat exchange can flow back to the water cup structure 9 through the pipe, thus forming hot water circulation.

[0076] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0077] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A washing device, characterized in that, include: Water tank, wherein a heat exchanger is provided inside the water tank; A washing tank, wherein the water tank is used to supply water to the washing tank, and a circulating water pipe is connected to the bottom of the washing tank, and a first filter structure is provided at the inlet of the circulating water pipe; The heat exchange pipeline is connected to the circulating water pipeline and the heat exchanger. The heat exchange pipeline is adapted to exchange heat with the water in the water tank through the heat exchanger. A second filter structure is provided at the inlet of the heat exchange pipeline.

2. The washing equipment according to claim 1, characterized in that, It also includes a connecting pipe, which includes a main pipe cavity and a branch pipe cavity. The branch pipe cavity is connected to the peripheral wall of the main pipe cavity. The main pipe cavity is connected in series in the circulating water pipeline. The branch pipe cavity is connected to the heat exchange pipeline. The second filter structure is installed in the branch pipe cavity or at the connection between the main pipe cavity and the branch pipe cavity.

3. The washing equipment according to claim 2, characterized in that, The second filter structure includes a filter section and a mounting section. The filter section is connected to the mounting section, and the mounting section is connected to the inner wall of the branch cavity. The filter section has a second filter hole that communicates with the branch cavity.

4. The washing equipment according to claim 3, characterized in that, The mounting part is cylindrical in shape, and a filter cavity is formed inside the mounting part. The extension direction of the filter cavity is the same as the extension direction of the branch cavity. The filter part is located at the inlet end of the filter cavity, and the filter cavity is connected to the second filter hole.

5. The washing equipment according to claim 3, characterized in that, The inlet end of the branch pipe cavity is provided with an installation groove, and the second filter structure is disposed in the installation groove. The surface of the filter part facing the main pipe cavity is flush with the inner wall surface of the main pipe cavity.

6. The washing equipment according to claim 2, characterized in that, The second filter structure is provided with a first snap-fit ​​part, and the inner wall of the branch cavity is provided with a second snap-fit ​​part. The first snap-fit ​​part and the second snap-fit ​​part are snap-fitted together and are limited along the axial direction of the branch cavity.

7. The washing equipment according to claim 2, characterized in that, The circulating water pipeline is equipped with a washing pump, and the branch pipe cavity is located downstream of the washing pump.

8. The washing equipment according to claim 7, characterized in that, The heat exchange pipeline is provided with a first control valve, and a second control valve is provided between the washing pump and the washing spray arm of the washing tank. One of the first control valve and the second control valve is set to be closed and the other is set to be open.

9. The washing equipment according to claim 1, characterized in that, The first filter structure has a first filter hole, and the second filter structure has a second filter hole, wherein the diameter of the second filter hole is larger than the diameter of the first filter hole.

10. The washing equipment according to claim 9, characterized in that, The diameter of the second filter hole is smaller than the diameter of the water inlet of the heat exchanger.

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