Heat exchange device and washing equipment

Abstract

The utility model relates to the technical field of washing equipment, and discloses a heat exchange device and washing equipment, the heat exchange device comprises a heat exchange water tank and a heat exchange tube, the top of the heat exchange water tank is provided with a penetrating through hole, two ends of the heat exchange tube penetrate out of the heat exchange water tank from the penetrating through hole, and the top of the heat exchange water tank is provided with a breathing channel. The inner cavity of the heat exchange water tank is communicated with the outside atmosphere through the breathing channel, the pressure balance in the heat exchange water tank is maintained through the breathing channel, the structure of the heat exchange water tank is simplified, and the cost of the heat exchange device is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of washing equipment, in particular to a heat exchange device and washing equipment. Background Art

[0002] The heat pump system of a heat pump dishwasher includes a compressor, a condenser, a throttling device and an evaporator. The heat exchange medium is compressed by the compressor and becomes a high-temperature and high-pressure gas. The high-temperature and high-pressure gas passes through the condenser and becomes a low-temperature and high-pressure liquid. The low-temperature and high-pressure liquid then passes through the throttling device and enters the evaporator, where it is vaporized into a high-temperature and low-pressure gas. The high-temperature and low-pressure gas enters the compressor again.

[0003] When high-temperature and high-pressure gas passes through the condenser, it will liquefy and release heat. The heat released by the condenser is used to heat the washing water of the dishwasher. In order to provide more heat sources for the evaporator, water is generally used as the evaporator heat source. The existing evaporator processing technology is complex and costly.

[0004] Therefore, a heat exchange device is urgently needed to solve the above technical problems. Utility Model Content

[0005] The utility model aims to provide a heat exchange device and washing equipment with simple structure and low cost.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A heat exchange device comprises a heat exchange water tank and a heat exchange tube, wherein a through hole is provided on the top of the heat exchange water tank, and both ends of the heat exchange tube pass through the through hole and out of the heat exchange water tank;

[0008] A breathing channel is arranged on the top of the heat exchange water tank, and the inner cavity of the heat exchange water tank is connected with the outside atmosphere through the breathing channel.

[0009] As a preferred technical solution of the above-mentioned heat exchange device, the above-mentioned breathing channel is formed between the outer wall of the heat exchange tube penetrating the penetration hole and the inner wall of the penetration hole.

[0010] As a preferred technical solution of the above heat exchange device, a drainage chamber separated from the inner cavity of the heat exchange tank is formed at the bottom of the heat exchange tank, and a partition is provided in the drainage chamber, which divides the drainage chamber into a sewage inlet chamber and a sewage outlet chamber, and the upper end of the sewage inlet chamber is connected to the upper end of the sewage outlet chamber;

[0011] A sewage inlet and a sewage outlet are provided at the bottom of the drainage chamber. The sewage inlet is communicated with the sewage inlet chamber, and the sewage outlet is communicated with the sewage outlet chamber.

[0012] As a preferred technical solution of the above heat exchange device, a water flow plate is provided in the heat exchange water tank, and the water flow plate divides the inner cavity of the heat exchange water tank into a water inlet channel and a heat exchange chamber;

[0013] The bottom wall of the heat exchange water tank is provided with a clean water inlet and a clean water outlet, the lower end of the water inlet channel is connected to the clean water inlet, the upper end of the water inlet channel is connected to the upper end of the heat exchange chamber, and the lower end of the heat exchange chamber is connected to the clean water outlet.

[0014] As a preferred technical solution of the above-mentioned heat exchange device, the heat exchange device also includes a flow detection unit arranged at the lower end of the water inlet channel, which is used to detect the water flow rate flowing through the clean water inlet.

[0015] As a preferred technical solution of the above-mentioned heat exchange device, the inner wall of the water exchange water tank is provided with a plurality of pipe clamps, and the heat exchange pipe clamps are arranged on the pipe clamps.

[0016] As a preferred technical solution of the above-mentioned heat exchange device, the water exchange water tank is equipped with a water level monitoring unit for monitoring the water level in the water exchange water tank.

[0017] In order to achieve the above purpose, the utility model also adopts a washing device, including an inner tank and a heat exchange device of any of the above schemes, wherein the heat exchange device is arranged on one side of the inner tank and is located on the side adjacent to the bottom of the inner tank.

[0018] As a preferred technical solution for the above-mentioned washing equipment, the water exchange water tank includes a water tank side panel facing the inner tank, the inner tank has an inner tank side panel facing the water tank side panel, and the water tank side panel and the inner tank side panel are connected by fasteners.

[0019] As a preferred technical solution for the above-mentioned washing equipment, a mounting boss is fixed on one of the water tank side panel and the inner tank side panel, and a mounting through hole plugged into the mounting boss is provided on the other, and the mounting boss is fixed to the side panel where the mounting through hole is located by fasteners.

[0020] Beneficial effects of the utility model: the heat exchange device and washing equipment provided by the utility model, wherein the heat exchange device includes a water exchange tank and a heat exchange tube, a through hole is provided on the top of the water exchange tank, both ends of the heat exchange tube pass through the through hole to pass out of the water exchange tank, a breathing channel is provided on the top of the water exchange tank, the inner cavity of the water exchange tank is connected with the outside atmosphere through the breathing channel, the breathing channel is used to maintain the pressure balance in the water exchange tank, the structure of the water exchange tank is simplified, and the cost of the heat exchange device is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0022] Figure 1 It is a structural schematic diagram of a washing device provided by an embodiment of the utility model and equipped with a heat exchange device;

[0023] Figure 2 It is a schematic diagram of the internal structure of the heat exchange device provided in the embodiment of the utility model;

[0024] Figure 3 yes Figure 2 A local enlarged schematic diagram of the middle A;

[0025] Figure 4 yes Figure 2 A local enlarged schematic diagram of point B in the middle.

[0026] In the figure:

[0027] 10. Heat exchange water tank; 101. Water tank side plate; 102. Through hole; 103. Clean water inlet; 104. Clean water outlet; 105. Sewage inlet; 106. Sewage outlet;

[0028] 20. heat exchange tube; 30. water level monitoring unit; 40. flow detection unit; 50. pipe clamp; 60. water flow plate;

[0029] 701, partition; 702, sewage inlet chamber; 703, sewage outlet chamber;

[0030] 801, water inlet channel; 802, heat exchange chamber;

[0031] 100. Heat exchange device; 200. Inner tank side panel. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0033] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0036] like Figures 1 to 4 As shown, an embodiment of the utility model provides a heat exchange device and a washing device. The washing device includes a heat exchange device 100. The washing device can be a heat pump dishwasher.

[0037] The heat exchange device 100 includes a heat exchange water tank 10 and a heat exchange tube 20. A through hole 102 is provided on the top of the heat exchange water tank 10. Both ends of the heat exchange tube 20 pass through the through hole 102 and out of the heat exchange water tank 10. A breathing channel is provided on the top of the heat exchange water tank 10. The inner cavity of the heat exchange water tank 10 is connected to the outside atmosphere through the breathing channel. The breathing channel is used to maintain the pressure balance in the heat exchange water tank 10, simplify the structure of the heat exchange water tank 10, and reduce the cost of the heat exchange device 100.

[0038] Exemplarily, two through holes 102 are provided, one end of the heat exchange tube 20 passes through one of the through holes 102, and the other end of the heat exchange tube 20 passes through the other through hole 102. In other embodiments, one through hole 102 may be provided, and both ends of the heat exchange tube 20 pass through the same through hole 102 to pass through the water exchange tank 10.

[0039] In some embodiments, the breathing passage is formed between the outer wall of the heat exchange tube 20 passing through the through hole 102 and the inner wall of the through hole 102. It should be noted that in other embodiments, a through hole can be opened on the top of the heat exchange water tank 10 to serve as a breathing passage.

[0040] Exemplarily, the aperture of the through hole 102 is larger than the outer diameter of the heat exchange tube 20 penetrated in the through hole 102, so that a breathing passage is formed between the inner wall of the through hole 102 and the outer wall of the heat exchange tube 20 penetrated in the through hole 102. It should be noted that the aperture of the through hole 102 is slightly larger than the outer diameter of the heat exchange tube 20 penetrated in the through hole 102, such as the difference between the aperture of the through hole 102 and the outer diameter of the heat exchange tube 20 penetrated in the through hole 102 is less than 5 mm.

[0041] Exemplarily, the inner diameter of any through hole 102 is larger than the outer diameter of the heat exchange tube 20 passing through the through hole 102. It should be noted that the inner diameter of only one through hole 102 may be larger than the outer diameter of the heat exchange tube 20 passing through the through hole 102.

[0042] In some embodiments, Figure 4 As shown, a drainage chamber separated from the inner cavity of the water exchange tank 10 is formed at the bottom of the water exchange tank 10, and a partition 701 is provided in the drainage chamber, which divides the drainage chamber into a sewage inlet chamber 702 and a sewage outlet chamber 703, and the upper end of the sewage inlet chamber 702 is connected to the upper end of the sewage outlet chamber 703; a sewage inlet 105 and a sewage outlet 106 are provided at the bottom of the drainage chamber, and the sewage inlet 105 is connected to the sewage inlet chamber 702, and the sewage outlet 106 is connected to the sewage outlet chamber 703. In this way, a high drainage structure can be formed at the bottom of the water exchange tank 10 for discharging washing sewage. Specifically, the washing sewage enters the sewage inlet chamber 702 through the sewage inlet 105, enters the sewage outlet chamber 703 from the top of the sewage inlet chamber 702, and is discharged from the sewage outlet 106 at the bottom of the sewage outlet chamber 703. Integrating the high drainage structure into the heat exchange water tank 10 can reduce the number of parts, lower costs, improve the integration of the heat exchange device 100, and reduce the space occupied by the heat exchange device 100.

[0043] Exemplarily, the lower end of the partition 701 is connected to the inner bottom wall of the drainage chamber, the upper end of the partition 701 is spaced apart from the inner top wall of the drainage chamber, and the two ends of the partition 701 in the width direction are respectively connected to the opposite side walls of the drainage chamber, so that the drainage chamber forms a U-shaped channel with an opening facing downward. It should be noted that the width direction of the partition 701, the thickness direction of the partition 701, and the vertical direction are perpendicular to each other. In other embodiments, a partition 701 with an opening on the top can also be used, so that the chambers on both sides of the partition 701 are connected through the openings on the partition 701. In some embodiments, as Figure 2 As shown, a water flow plate 60 is provided in the heat exchange water tank 10, and the water flow plate 60 divides the inner cavity of the heat exchange water tank 10 into a water inlet channel 801 and a heat exchange chamber 802; a clean water inlet 103 and a clean water outlet 104 are provided on the bottom wall of the heat exchange water tank 10, the lower end of the water inlet channel 801 is connected to the clean water inlet 103, the upper end of the water inlet channel 801 is connected to the upper end of the heat exchange chamber 802, and the lower end of the heat exchange chamber 802 is connected to the clean water outlet 104. In this way, clean water can enter the clean water channel 801 through the clean water inlet 103, and be guided by the clean water channel 801 to the top of the heat exchange chamber 802, and then flow out from the clean water outlet 104 at the bottom of the heat exchange chamber 802, and the heat exchange effect of the water in the heat exchange chamber 802 and the water in the heat exchange tube 20 can be improved by controlling the water flow direction in the heat exchange tube 20.

[0044] In some embodiments, Figure 2 As shown, the heat exchange device 100 further includes a flow detection unit 40 disposed under the water inlet channel 801, for detecting the water flow rate flowing through the clean water inlet 103. Exemplarily, the flow detection unit 40 is a flow meter. Such a configuration can ensure that the flow detection unit 40 can work normally and improve the accuracy of the detection result of the flow detection unit 40.

[0045] In some embodiments, Figure 2 As shown, the inner wall of the heat exchange water tank 10 is provided with a plurality of pipe clamps 50, and the heat exchange tubes 20 are clamped in the pipe clamps 50. The heat exchange tubes 20 are fixed by the pipe clamps 50, and the disassembly and assembly are convenient. Exemplarily, the pipe clamps 50 are C-shaped structures.

[0046] In some embodiments, the heat exchange tube 20 is a copper tube, which has low cost and good heat exchange effect.

[0047] It should be noted that the distribution form of the multiple tube clamps 50 is determined according to the structure of the heat exchange tube 20. Exemplarily, the heat exchange tube 20 includes a plurality of transverse tubes arranged at intervals in the vertical direction, two adjacent transverse tubes are connected by a U-shaped tube, and two adjacent U-shaped tubes are respectively located at the axial ends of the transverse tube, and each transverse tube is fixed to the heat exchange water tank 10 by at least two tube clamps 50 distributed at intervals in the axial direction. In this way, the length of the heat exchange tube 20 can be increased, the contact area between the heat exchange tube 20 and the clean water in the heat exchange water tank 10 can be increased, and the heat exchange efficiency can be improved. It should be noted that the structural form of the heat exchange tube 20 is not limited to the above-mentioned form, such as coils, etc., which are not listed here one by one.

[0048] Exemplarily, the pipe clamp 50 can be pasted and fixed to the inner wall of the hot water exchange tank 10, or the pipe clamp 50 and the hot water exchange tank 10 can be integrally formed, or one end of the clamp can be embedded in the inner wall of the hot water exchange tank 10 with an interference fit.

[0049] In some embodiments, Figure 2 As shown, the heat exchange water tank 10 is equipped with a water level monitoring unit 30 for monitoring the water level in the heat exchange water tank 10. When the heat exchange device 100 is used in a washing device, the water level monitoring unit 30 is connected to the controller of the washing device for communication, and the water level in the heat exchange water tank 10 can be detected in real time through the water level monitoring unit 30. When the water level in the heat exchange water tank 10 is higher than the maximum allowable water level, the controller controls the water inlet device of the washing device to stop injecting water into the heat exchange water tank 10, and at the same time issues an alarm indication, such as a sound alarm indication and a light alarm indicator. When the washing device fails, the user can be reminded to manually stop injecting water into the heat exchange water tank 10 in time to prevent water overflow.

[0050] Exemplarily, the water level monitoring unit 30 is a water level sensor. It should be noted that the water level monitoring unit 30 can also be a Hall sensor, a float sensor, or the like.

[0051] like Figure 1 As shown, the washing device provided by the embodiment of the utility model further includes an inner tank, and the heat exchange device 100 is arranged on one side of the inner tank and adjacent to the bottom of the inner tank. Taking the washing device as a heat pump dishwasher as an example, the heat exchange device 100 is arranged on the left or right side of the inner tank. It should be noted that the heat pump dishwasher has a door body, and when the user faces the door body, the left and right hand directions of the user are the left and right directions of the inner tank.

[0052] The heat exchange device 100 is arranged on one side of the inner tank and adjacent to the bottom of the inner tank, so that the space on the side of the inner tank can be fully utilized and the influence of the arrangement of the heat exchange device 100 on the volume of the washing device can be minimized.

[0053] The clean water inlet 103 is used to connect to the faucet, and the water drawn out from the clean water outlet 104 enters the inner tank after passing through the water softener. The high-temperature sewage discharged from the inner tank enters the sewage inlet 105 through the drainage pump, and flows through the sewage inlet chamber 702 and the sewage outlet chamber 703 in sequence from the sewage inlet 105, and then is discharged from the sewage outlet 106.

[0054] In some embodiments, Figure 1 As shown, the heat exchange water tank 10 comprises a water tank side plate 101 facing the inner tank, and the inner tank has an inner tank side plate 200 facing the water tank side plate 101, and the water tank side plate 101 and the inner tank side plate 200 are connected by fasteners. The heat exchange water tank 10 is easy to disassemble and assemble, has high disassembly and assembly efficiency, and is low in cost.

[0055] In some embodiments, a mounting boss is fixed on one of the water tank side plate 101 and the inner tank side plate 200, and a mounting through hole plugged into the mounting boss is provided on the other, and the mounting boss is fixed to the side plate where the mounting through hole is located by a fastener. Exemplarily, the water tank side plate 101 is provided with a mounting boss, the inner tank side plate 200 is provided with a mounting through hole, and the pipe clamp 50 is provided on the inner tank side plate 200.

[0056] The installation boss and the installation through hole are plugged into each other, which not only serves to position the water exchange tank 10, but also enables one end of the fastener to be threadedly connected to the installation boss, and the other end of the fastener to abut against the side of the inner tank side panel 200 facing away from the water tank side panel 101, thereby fixing the water exchange tank 10 to the inner tank.

[0057] In some embodiments, a relief groove is provided on the water tank side plate 101, and a protrusion is provided on the inner tank side plate 200, and the protrusion is inserted into the relief groove. The protrusion on the inner tank side plate 200 is avoided by the relief groove to prevent interference between the heat exchange device 100 and the inner tank.

[0058] It should be noted that for dishwashers with a small installation space on the side of the inner tank, the flow detection unit 40 and the high drainage structure integrated on the heat exchange device 100 can be eliminated. For dishwashers with a large installation space on the side of the inner tank, the heat exchange device 100 integrated with the flow detection unit 40 and the high drainage structure can be used.

[0059] In addition, the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A heat exchange device, characterized in that: It comprises a heat exchange water tank (10) and a heat exchange tube (20), wherein a through hole (102) is provided on the top of the heat exchange water tank (10), and both ends of the heat exchange tube (20) pass through the through hole (102) and exit the heat exchange water tank (10); A breathing passage is provided on the top of the heat exchange water tank (10), and the inner cavity of the heat exchange water tank (10) is connected to the outside atmosphere through the breathing passage.

2. The heat exchange device according to claim 1, characterized in that: The breathing passage is formed between the outer wall of the heat exchange tube (20) penetrated in the penetration hole (102) and the inner wall of the penetration hole (102).

3. The heat exchange device according to claim 1, characterized in that: The bottom of the water exchange tank (10) is formed with a drainage chamber separated from the inner cavity of the water exchange tank (10), and a partition (701) is provided in the drainage chamber, and the partition (701) divides the drainage chamber into a sewage inlet chamber (702) and a sewage outlet chamber (703), and the upper end of the sewage inlet chamber (702) is connected to the upper end of the sewage outlet chamber (703); A sewage inlet (105) and a sewage outlet (106) are provided at the bottom of the drainage chamber. The sewage inlet (105) is connected to the sewage inlet chamber (702), and the sewage outlet (106) is connected to the sewage outlet chamber (703).

4. The heat exchange device according to claim 1, characterized in that: A water flow plate (60) is provided in the heat exchange water tank (10), and the water flow plate (60) divides the inner cavity of the heat exchange water tank (10) into a water inlet channel (801) and a heat exchange chamber (802); The bottom wall of the heat exchange water tank (10) is provided with a clean water inlet (103) and a clean water outlet (104); the lower end of the water inlet channel (801) is connected to the clean water inlet (103); the upper end of the water inlet channel (801) is connected to the upper end of the heat exchange chamber (802); and the lower end of the heat exchange chamber (802) is connected to the clean water outlet (104).

5. The heat exchange device according to claim 4, characterized in that: The heat exchange device (100) further comprises a flow detection unit (40) disposed at the lower end of the water inlet channel (801) and used for detecting the water flow rate flowing through the clean water inlet (103).

6. The heat exchange device according to claim 1, characterized in that: The inner wall of the heat exchange water tank (10) is fixedly provided with a plurality of pipe clamps (50), and the heat exchange pipes (20) are clamped in the pipe clamps (50).

7. The heat exchange device according to claim 1, characterized in that: The water exchange tank (10) is provided with a water level monitoring unit (30) for monitoring the water level in the water exchange tank (10).

8. Washing equipment, characterized in that It comprises an inner tank and a heat exchange device (100) as claimed in any one of claims 1 to 7, wherein the heat exchange device (100) is arranged on one side of the inner tank and is located on a side adjacent to the bottom of the inner tank.

9. The washing device according to claim 8, characterized in that: The water exchange water tank (10) comprises a water tank side plate (101) facing the inner tank, the inner tank has an inner tank side plate (200) facing the water tank side plate (101), and the water tank side plate (101) and the inner tank side plate (200) are connected via fasteners.

10. The washing device according to claim 9, characterized in that: A mounting boss is fixed on one of the water tank side plate (101) and the liner side plate (200), and a mounting through hole plugged into the mounting boss is provided on the other, and the mounting boss is fixed to the side plate where the mounting through hole is located by the fastener.

Images