Heat recovery device and dish washing machine

Abstract

The utility model discloses a heat recovery device and discloses a dish-washing machine with the heat recovery device, the heat recovery device comprises a main washing water tank, a drainage assembly, a heating assembly and a heat recovery pipe, the main washing water tank is provided with a heating cavity and a heat recovery cavity, the drainage assembly is arranged on the main washing water tank, and the drainage assembly comprises a drainage pipe and an overflow pipe. The drainage pipe penetrates through the heating cavity and the heat recovery cavity, a water outlet hole is formed in the part, located in the heat recovery cavity, of the drainage pipe, one end of the overflow pipe is located on the outer side of the main washing water tank, the other end of the overflow pipe extends into the heat recovery cavity, the heating assembly is arranged in the heating cavity and used for heating water in the heating cavity, and the heat recovery pipe is used for being communicated with the rinsing water tank. The heat recovery pipe penetrates through the heat recovery cavity, in the vertical direction, the lowest position of the part, located in the heat recovery cavity, of the heat recovery pipe is lower than the end, away from the drainage pipe, of the overflow pipe, water in the rinsing water tank does not need to be independently heated, electricity consumption is reduced, and energy waste is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to dish washer technical field, especially a kind of heat recovery device and dish washer. BACKGROUND

[0002] The main wash and rinse of the dish washer are two important steps in the washing process of the dish washer, which play a key role in the operation of the dish washer. The main wash stage is one of the important steps in the washing process of the dish washer. In this stage, high-pressure water flows through the heating, while the detergent is dissolved in the water, and the dishes are washed and rinsed to ensure that the dishes can be thoroughly cleaned. The rinse stage follows the main wash stage. In this stage, the dish washer rinses the dishes to remove the detergent and impurities left over from the main wash stage.

[0003] The existing dish washer is generally provided with a main wash water tank, a rinse water tank and a spraying assembly. The main wash water tank and the rinse water tank are used to supply water to the spraying assembly to wash the dishes in the main wash stage and the rinse stage. Most dish washers will directly drain the hot water in the main wash water tank after the main wash stage is completed. The heat in the part of the hot water directly drained is not recovered, which wastes the heat and increases the electricity consumption and energy waste when heating the water in the rinse water tank during the rinse stage. SUMMARY

[0004] The utility model aims at at least solving one of the technical problems existing in the prior art. To this end, the utility model provides a heat recovery device, which reduces electricity consumption and energy waste.

[0005] The utility model further provides a dish washer with the heat recovery device.

[0006] According to the heat recovery device of the first aspect embodiment of the utility model, comprising:

[0007] The main wash water tank is provided with a heating cavity and a heat recovery cavity.

[0008] The drain assembly is arranged in the main wash water tank. The drain assembly includes a drain pipe and an overflow pipe. The drain pipe is arranged in the heating cavity and the heat recovery cavity. The part of the drain pipe located in the heat recovery cavity is provided with a water outlet hole. One end of the overflow pipe is located outside the main wash water tank, and the other end of the overflow pipe extends into the heat recovery cavity.

[0009] The heating assembly is arranged in the heating cavity, and is used for heating the water in the heating cavity.

[0010] A heat recovery pipe for communicating with the rinsing water tank, the heat recovery pipe is arranged in the heat recovery cavity along the up-down direction, and the lowest position of the part of the heat recovery pipe in the heat recovery cavity is lower than the end of the overflow pipe away from the drain pipe.

[0011] The heat recovery device according to the first aspect of the present application has at least the following

[0012] Beneficial effects:

[0013] The heating cavity is located above the heat recovery cavity, when the dishwasher works, the heating assembly is started to heat the water in the heating cavity to a preset temperature, the water in the heating cavity flows into the drain pipe, and then flows into the heat recovery cavity from the water outlet hole, the water level in the heat recovery cavity gradually rises, when the water in the heat recovery cavity submerges the end of the overflow pipe in the heat recovery cavity, the water in the heat recovery cavity flows out of the heat recovery cavity from the overflow pipe, at this time, the dishwasher performs the main washing program, and after the main washing program is completed, the rinsing program is started, the water in the rinsing water tank flows out from the heat recovery pipe, and since the lowest position of the part of the heat recovery pipe in the heat recovery cavity is lower than the end of the overflow pipe in the heat recovery cavity, the heat recovery pipe can exchange heat with the water in the heat recovery cavity, so that the water in the heat recovery pipe is heated to a certain temperature, and the water in the rinsing water tank does not need to be heated separately, thereby reducing the power consumption and reducing the energy waste.

[0014] According to some embodiments of the present application, along the up-down direction, the highest position of the part of the heat recovery pipe in the heat recovery cavity is lower than the end of the overflow pipe away from the drain pipe.

[0015] According to some embodiments of the present application, the main washing water tank comprises a tank body and a partition plate arranged in the tank body, the partition plate can separate the inside of the tank body into the heating cavity and the heat recovery cavity, and the drain pipe is arranged in the partition plate.

[0016] According to some embodiments of the present application, the heat recovery pipe comprises a water inlet section, a water outlet section and a heat recovery section arranged between the water inlet section and the water outlet section, the heat recovery section comprises a plurality of pipe sections arranged side by side and spaced apart, and adjacent pipe sections are connected.

[0017] According to some embodiments of the present application, a plurality of water outlet holes are arranged, and the plurality of water outlet holes are arranged along the circumference of the drain pipe.

[0018] According to some embodiments of the present application, the drain pipe comprises a drain pipe and a water outlet element, the drain pipe is arranged in the heating cavity, the water outlet element is arranged in the heat recovery cavity, the water outlet hole is arranged on the water outlet element, and one end of the drain pipe extending into the heat recovery cavity is connected with the water outlet element.

[0019] The drain assembly further comprises a connecting pipe, one end of the connecting pipe extending into the heat recovery cavity, and the water outlet member being detachably connected with the connecting pipe, and when the water outlet member is connected with the connecting pipe, the water outlet member blocks the one end of the connecting pipe extending into the heat recovery cavity.

[0020] According to some embodiments of the present application, one end of the overflow pipe extending out of the heat recovery cavity is in communication with one end of the connecting pipe extending out of the heat recovery cavity.

[0021] According to some embodiments of the present application, the connecting pipe is provided with an avoiding hole, and the avoiding hole is in communication with the water outlet hole.

[0022] According to some embodiments of the present application, one end of the connecting pipe extending into the heat recovery cavity is provided with a drain hole, and the drain hole is close to the bottom wall of the heat recovery cavity.

[0023] The dishwasher according to the second aspect of the embodiments of the present application comprises the heat recovery device according to the above embodiments.

[0024] The dishwasher according to the second aspect of the embodiments of the present application has at least the following beneficial effects:

[0025] The heating cavity is located above the heat recovery cavity, when the dishwasher is working, the heating assembly is started to heat the water in the heating cavity to a preset temperature, the water in the heating cavity flows into the drain pipe, and then flows into the heat recovery cavity from the water outlet hole, the water level in the heat recovery cavity gradually rises, when the water in the heat recovery cavity submerges the one end of the overflow pipe located in the heat recovery cavity, the water in the heat recovery cavity flows out of the heat recovery cavity from the overflow pipe, at this time, the dishwasher performs the main washing program, after the main washing program is completed, the rinsing program is started, the water in the rinsing water tank flows out from the heat recovery pipe, since the lowest position of the part of the heat recovery pipe located in the heat recovery cavity is lower than the one end of the overflow pipe located in the heat recovery cavity, the heat recovery pipe can exchange heat with the water in the heat recovery cavity, so that the water in the heat recovery pipe is heated to a certain temperature, without heating the water in the rinsing water tank separately, both the power consumption and the energy waste are reduced.

[0026] Additional aspects and advantages of the present application will be given in part in the following description, and will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0027] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the following drawings, in which:

[0028] Figure 1 FIG. 1 is a structural schematic view of a heat recovery device according to an embodiment of the present application;

[0029] Figure 2 It is the exploded view of the heat recovery device of the utility model embodiment;

[0030] Figure 3 It is Figure 1 the top view;

[0031] Figure 4 It is Figure 3 the local enlarged view of A part in it;

[0032] Figure 5 It is Figure 3 the local enlarged view of B part in it;

[0033] Figure 6 It is the structure diagram of the drainage assembly of the utility model embodiment;

[0034] Figure 7 It is the exploded view of the drainage assembly of the utility model embodiment;

[0035] Figure 8 It is the structure diagram of the water outlet of the utility model embodiment;

[0036] Figure 9 It is the connection diagram of the connecting pipe and the overflow pipe of the utility model embodiment;

[0037] Figure 10 It is the front view of the dishwasher of the utility model embodiment;

[0038] Figure 11 It is the structure diagram of the dishwasher of the utility model embodiment.

[0039] Reference signs:

[0040] Main washing water tank 100, heating cavity 101, heat recovery cavity 102, box body 110, partition plate 120, drainage assembly 200, drainage pipe 210, drainage pipe 211, water outlet 212, water outlet hole 2121, overflow pipe 220, connecting pipe 230, avoiding hole 231, drainage hole 232, heating assembly 300, heat recovery pipe 400, water inlet section 41, water outlet section 420, heat recovery section 430, pipe section 431, rinsing water tank 510, spraying assembly 520. DETAILED DESCRIPTION

[0041] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as the limitation of the utility model.

[0042] In the description of the utility model, it is understood that the direction description, such as the direction or positional relation of the indication of up, down, front, back, left, right etc. for the utility model and simplify the description, and it is not indicated or implied that the device or element must have a particular orientation, a particular orientation and operation, and therefore it cannot be understood as a limitation on the utility model.

[0043] In the description of the utility model, the meaning of several is one or more, and the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, within, etc. are understood as including the number. If the first, second is described, it is only used for distinguishing the purpose of technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0044] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection, etc. should be understood broadly, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0045] In the related art, the existing dish washing machine is generally provided with a main washing water tank, a rinsing water tank and a spraying assembly, the main washing water tank and the rinsing water tank are both used for supplying water for the spraying assembly to flush tableware in the main washing stage and the rinsing stage. Most dish washing machines will directly drain the hot water in the main washing water tank after completing the main washing stage, and the part of the hot water in the main washing stage is not recycled, so the heat in the part of the hot water directly drained is wasted, and the water in the rinsing water tank needs to be heated when the rinsing stage is carried out, which increases the power consumption and wastes energy.

[0046] Referring to Figures 1 to 4According to the heat recovery device of the first aspect of the utility model, the main washing water tank 100 is provided with a heating cavity 101 and a heat recovery cavity 102, the drain assembly 200 is arranged on the main washing water tank 100, the drain assembly 200 comprises a drain pipe 210 and an overflow pipe 220, the drain pipe 210 is arranged in the heating cavity 101 and the heat recovery cavity 102, the part of the drain pipe 210 located in the heat recovery cavity 102 is provided with a water outlet hole 2121, one end of the overflow pipe 220 is located outside the main washing water tank 100, the other end of the overflow pipe 220 extends into the heat recovery cavity 102, the heating assembly 300 is arranged in the heating cavity 101, the heating assembly 300 is used for heating the water in the heating cavity 101, the heat recovery pipe 400 is used for being communicated with the rinsing water tank, the heat recovery pipe 400 is arranged in the heat recovery cavity 102, along the up-down direction, the lowest position of the part of the heat recovery pipe 400 located in the heat recovery cavity 102 is lower than the end of the overflow pipe 220 away from the drain pipe 210, in this way, the water in the heat recovery cavity 102 can exchange heat with the heat recovery pipe 400 to heat the water in the heat recovery pipe 400, without heating the water in the rinsing water tank separately, both the power consumption and the energy waste are reduced.

[0047] Specifically, the heating cavity 101 is located above the heat recovery cavity 102, when the dishwasher works, the heating assembly 300 is started to heat the water in the heating cavity 101 to a preset temperature, the water in the heating cavity 101 flows into the drain pipe 210, and then flows into the heat recovery cavity 102 from the water outlet hole 2121, the water level in the heat recovery cavity 102 gradually rises, when the water in the heat recovery cavity 102 submerges the end of the overflow pipe 220 located in the heat recovery cavity 102, the water in the heat recovery cavity 102 flows out of the heat recovery cavity 102 from the overflow pipe 220, at this time, the dishwasher carries out the main washing program on the tableware, after the main washing program ends, the rinsing program is started, the water in the rinsing water tank flows out from the heat recovery pipe 400, since the lowest position of the part of the heat recovery pipe 400 located in the heat recovery cavity 102 is lower than the end of the overflow pipe 220 located in the heat recovery cavity 102, the heat recovery pipe 400 can exchange heat with the water in the heat recovery cavity 102, so that the water in the heat recovery pipe 400 is heated to a certain temperature, without heating the water in the rinsing water tank separately, both the power consumption and the energy waste are reduced.

[0048] It should be noted that the heating assembly 300 is a heating element such as an electromagnetic heating tube or an infrared heating tube, which is not limited here.

[0049] Referring to Figure 4In some embodiments of this utility model, along the vertical direction, the highest position of the portion of the heat recovery pipe 400 located inside the heat recovery chamber 102 is lower than the end of the overflow pipe 220 that is far from the drain pipe 210, which can increase the contact area between the heat recovery pipe 400 and the water in the heat recovery chamber 102, thereby increasing the heating rate of the water in the heat recovery pipe 400.

[0050] Reference Figure 4 , Figure 5 In some embodiments of this utility model, the main washing water tank 100 includes a tank body 110 and a partition 120 disposed inside the tank body 110. The partition 120 can divide the interior of the tank body 110 into a heating chamber 101 and a heat recovery chamber 102. The drain pipe 210 passes through the partition 120, which facilitates the manufacturing of the main washing water tank 100.

[0051] Specifically, the partition 120 is housed within the housing 110, and the outer peripheral surface of the partition 120 abuts against the inner peripheral surface of the housing 110. The interior of the housing 110 is divided into a heating chamber 101 and a heat recovery chamber 102. One end of the drain pipe 210 is housed within the heating chamber 101, and the other end of the drain pipe 210 extends into the heat recovery chamber 102 to connect the heating chamber 101 and the heat recovery chamber 102, which facilitates the manufacturing of the main washing water tank 100.

[0052] It should be noted that the partition 120 can be connected to the housing 110 by welding to fix the partition 120. The welding method includes, but is not limited to, resistance welding, laser welding or ultrasonic welding, etc., and is not limited here.

[0053] It should be noted that the main wash water tank 100 may also include two water tanks, which can be connected to form the main wash water tank 100. One water tank is equipped with a heating chamber 101, and the other water tank is equipped with a heat recovery chamber 102. This can also facilitate the production and manufacturing of the main wash water tank 100, and no restrictions are imposed here.

[0054] Reference Figure 2 In some embodiments of this utility model, the heat recovery pipe 400 includes an inlet section 41, an outlet section 420, and a heat recovery section 430 disposed between the inlet section 41 and the outlet section 420. The heat recovery section 430 includes a plurality of pipe sections 431 arranged side by side at intervals. Adjacent pipe sections 431 are connected, which can increase the length of the heat recovery section 430 in the heat recovery chamber 102, thereby increasing the heating time of the water in the heat recovery pipe 400 in the heat recovery chamber 102, thereby improving the heat recovery efficiency of the dishwasher and reducing heat energy waste.

[0055] Specifically, the water inlet section 41 and the water outlet section 420 are both arranged in the part of the box body 110 corresponding to the heat recovery cavity 102, the heat recovery section 430 is accommodated in the heat recovery cavity 102, and the heat recovery section 430 comprises a plurality of sequentially communicated pipe sections 431, which can increase the length of the heat recovery section 430 in the heat recovery cavity 102, so as to increase the heating time of the water in the heat recovery pipe 400 in the heat recovery cavity 102, thereby improving the heat recovery efficiency of the dishwasher and reducing the waste of heat energy.

[0056] With reference to Figure 7 , Figure 8 In some embodiments of the present application, the water outlet holes 2121 are arranged in multiple numbers and are arranged at intervals along the circumference of the drain pipe 210, so that the drain pipe 210 can drain water in all directions in the heat recovery cavity 102, so that the water in the heat recovery cavity 102 can flow, ensuring that the temperature in the heat recovery cavity 102 is uniform, thereby effectively improving the heat recovery efficiency of the dishwasher.

[0057] With reference to Figure 4 , Figure 6 In some embodiments of the present application, the drain pipe 210 comprises a drain pipe 210 channel and a water outlet element 212, the drain pipe 210 channel is arranged in the heating cavity 101, the water outlet element 212 is accommodated in the heat recovery cavity 102, the water outlet holes 2121 are arranged in the water outlet element 212, one end of the drain pipe 210 channel extending into the heat recovery cavity 102 is connected with the water outlet element 212, and the drain assembly 200 further comprises a connecting pipe 230, one end of the connecting pipe 230 extending into the heat recovery cavity 102, the water outlet element 212 is detachably connected with the connecting pipe 230, when the water outlet element 212 is connected with the connecting pipe 230, the water outlet element 212 blocks one end of the connecting pipe 230 extending into the heat recovery cavity 102, so that the accumulated water in the heating cavity 101 can be conveniently cleaned, thereby avoiding the occurrence of the situation that bacteria breed in the heating cavity 101.

[0058] Specifically, when the dishwasher is working, the water outlet element 212 blocks one end of the connecting pipe 230 extending into the heat recovery cavity 102, and the water in the heating cavity 101 flows into the heat recovery cavity 102 through the drain pipe 210 channel and the water outlet element 212 in sequence, so as to provide sufficient heat for the water in the heat recovery cavity 102, when the main washing water tank 100 is cleaned, the drain pipe 210 channel is pulled out of the heating cavity 101, so that the water outlet element 212 is separated from the connecting pipe 230, and the water in the heating cavity 101 can be directly discharged through the connecting pipe 230, so that the accumulated water in the heating cavity 101 can be conveniently cleaned, thereby avoiding the occurrence of the situation that bacteria breed in the heating cavity 101.

[0059] With reference to Figure 7 , Figure 9In some embodiments of the utility model, the one end of overflow pipe 220 extending out of heat recovery cavity 102 communicates with the one end of connecting pipe 230 extending out of heat recovery cavity 102, which can simplify the pipeline structure of heat recovery device, so as to facilitate the assembly of heat recovery device.

[0060] It should be noted that overflow pipe 220 and connecting pipe 230 are integrated structure, on the one hand, it can reduce the number of parts of heat recovery device, so as to improve the assembly efficiency of heat recovery device, on the other hand, it can reduce the number of moulds, so as to reduce the production cost of heat recovery device.

[0061] Referring to Figure 9 In some embodiments of the utility model, connecting pipe 230 is provided with avoiding hole 231, avoiding hole 231 communicates with water outlet hole 2121, which can facilitate the drainage of water outlet hole 2121 under the condition of stably installing connecting pipe 230 and water outlet 212.

[0062] Specifically, one end of water outlet 212 away from drain pipe 210 is inserted into one end of connecting pipe 230, and the outer peripheral surface of one end of water outlet 212 away from drain pipe 210 is sealingly abutted with the inner peripheral surface of one end of connecting pipe 230, avoiding hole 231 communicates with water outlet hole 2121, which can facilitate the drainage of water outlet hole 2121 under the condition of stably installing connecting pipe 230 and water outlet 212.

[0063] In some embodiments of the utility model, the one end of connecting pipe 230 extending into heat recovery cavity 102 is provided with drainage hole 232, drainage hole 232 is close to the bottom wall of heat recovery cavity 102, which can facilitate the drainage of accumulated water in heat recovery cavity 102.

[0064] Specifically, when water outlet 212 plugs one end of connecting pipe 230, water outlet 212 plugs drainage hole 232 at the same time, so that the water in heat recovery cavity 102 is not drained, when water outlet 212 is separated from connecting pipe 230, the water in heat recovery cavity 102 flows into connecting pipe 230 from drainage hole 232, which can facilitate the drainage of accumulated water in heat recovery cavity 102.

[0065] Referring to Figure 10 、 Figure 11 According to the dishwasher of the second aspect of the utility model, the heat recovery device of the first aspect of the utility model is included, which not only reduces the power consumption, but also reduces the energy waste.

[0066] Specifically, the heating cavity 101 is located above the heat recovery cavity 102, when the dishwasher works, the heating assembly 300 starts to heat the water in the heating cavity 101 to a preset temperature, the water in the heating cavity 101 flows into the drain pipe 210, and then flows into the heat recovery cavity 102 from the water outlet hole 2121, the water level in the heat recovery cavity 102 gradually rises, when the water in the heat recovery cavity 102 covers the one end of the overflow pipe 220 located in the heat recovery cavity 102, the water in the heat recovery cavity 102 flows out of the heat recovery cavity 102 from the overflow pipe 220, at this time, the dishwasher performs the main washing program, after the main washing program ends, the rinsing program is started, the water in the rinsing water tank flows out from the heat recovery pipe 400, because the lowest position of the part of the heat recovery pipe 400 located in the heat recovery cavity 102 is lower than the one end of the overflow pipe 220 located in the heat recovery cavity 102, so that the heat recovery pipe 400 can exchange heat with the water in the heat recovery cavity 102, so that the water in the heat recovery pipe 400 is heated to a certain temperature, without heating the water in the rinsing water tank separately, which reduces the power consumption and reduces the energy waste.

[0067] It should be noted that the dishwasher further comprises a rinsing water tank 510 and a spraying assembly 520, and the rinsing water tank 510 and the main washing water tank 100 can supply water to the spraying assembly 520, so that the spraying assembly 520 can clean the tableware in the main washing stage and the rinsing stage.

[0068] The technical features of the above-mentioned embodiments can be combined arbitrarily, in order to make the description simple, not all possible combinations of the technical features in the above-mentioned embodiments are described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0069] The above embodiment is described in detail in combination with the drawings, but the present application is not limited to the above-mentioned embodiments, within the knowledge range of ordinary skilled in the art, various changes can be made without departing from the purpose of the present application.

Claims

1. A heat recovery device for a dishwasher, characterized in that, The application relates to a washing machine, which comprises the following components: a main washing water tank (100) provided with a heating cavity (101) and a heat recovery cavity (102); a drainage assembly (200) arranged in the main washing water tank (100), the drainage assembly (200) comprising a drainage pipe (210) and an overflow pipe (220), the drainage pipe (210) penetrating through the heating cavity (101) and the heat recovery cavity (102), a part of the drainage pipe (210) located in the heat recovery cavity (102) being provided with a water outlet hole (2121), one end of the overflow pipe (220) being located outside the main washing water tank (100), and the other end of the overflow pipe (220) extending into the heat recovery cavity (102); a heating assembly (300) arranged in the heating cavity (101), the heating assembly (300) being used for heating water in the heating cavity (101); a heat recovery pipe (400) used for communicating with a rinsing water tank (510), the heat recovery pipe (400) penetrating through the heat recovery cavity (102) in the up-down direction, and the lowest position of the part of the heat recovery pipe (400) located in the heat recovery cavity (102) being lower than the end of the overflow pipe (220) away from the drainage pipe (210).

2. The heat recovery device according to claim 1, characterized by In the up-down direction, the highest position of the part of the heat recovery pipe (400) located in the heat recovery cavity (102) is lower than the end of the overflow pipe (220) away from the drainage pipe (210).

3. The heat recovery device according to claim 1, characterized by The main washing water tank (100) comprises a tank body (110) and a partition plate (120) arranged in the tank body (110), the partition plate (120) being capable of separating the inside of the tank body (110) into the heating cavity (101) and the heat recovery cavity (102), and the drainage pipe (210) penetrating through the partition plate (120).

4. The heat recovery device of claim 3, wherein The heat recovery pipe (400) comprises a water inlet section (41), a water outlet section (420) and a heat recovery section (430) arranged between the water inlet section (41) and the water outlet section (420), the heat recovery section (430) comprising a plurality of pipe sections (431) arranged side by side and spaced apart, and adjacent pipe sections (431) being communicated.

5. The heat recovery device of claim 1, wherein The water outlet hole (2121) is configured with a plurality of water outlet holes (2121) arranged in the circumferential direction of the drainage pipe (210) and spaced apart.

6. The heat recovery device of claim 1, wherein The drainage pipe (210) comprises a drainage pipe (210) channel and a water outlet element (212), the drainage pipe (210) channel being arranged in the heating cavity (101), the water outlet element (212) being accommodated in the heat recovery cavity (102), the water outlet hole (2121) being arranged in the water outlet element (212), and one end of the drainage pipe (210) channel extending into the heat recovery cavity (102) being connected with the water outlet element (212). The drain assembly (200) further comprises a connecting pipe (230), one end of the connecting pipe (230) extends into the heat recovery cavity (102), the water outlet (212) is detachably connected with the connecting pipe (230), when the water outlet (212) is connected with the connecting pipe (230), the water outlet (212) blocks the one end of the connecting pipe (230) extending into the heat recovery cavity (102).

7. The heat recovery device of claim 6, wherein One end of the overflow pipe (220) extending out of the heat recovery cavity (102) is in communication with one end of the connecting pipe (230) extending out of the heat recovery cavity (102).

8. The heat recovery device of claim 7, wherein, The connecting pipe (230) is provided with a avoiding hole (231), the avoiding hole (231) is in communication with the water outlet hole (2121).

9. The heat recovery device of claim 6, wherein, The one end of the connecting pipe (230) extending into the heat recovery cavity (102) is provided with a drain hole (232), the drain hole (232) is close to the bottom wall of the heat recovery cavity (102).

10. A dishwasher, characterized in that The heat recovery device comprises the heat recovery device as claimed in any one of claims 1 to 9. The heat recovery device comprises the heat recovery device as claimed in any one of claims 1 to 9.

Images