Heat exchange device and dishwasher

Abstract

The embodiment of the present invention provides a heat exchange device, comprising: a box for accommodating a first liquid, and a heat exchange component arranged inside the box, the heat exchange component comprising: a mounting member, the mounting member having a plurality of protrusions arranged at intervals along the length direction, and a groove formed between two adjacent protrusions; a plurality of single tubes, each of the single tubes passing through each of the grooves, and the single tubes being used to accommodate a second liquid for heat exchange with the first liquid. The technical solution of the embodiment of the present invention can not only effectively realize the heat exchange between the two liquids, but also increase the heat exchange area. In addition, the technical solution has low processing difficulty and is easy to realize.

Description

Technical Field

[0001] The present invention relates to the technical field of dishwashers, and in particular to a heat exchange device and a dishwasher. Background Art

[0002] This section is intended to provide a background or context to embodiments of the invention that are recited in the claims. No description herein is admitted to be prior art by inclusion in this section.

[0003] Heat can be transferred between two liquids with a temperature difference, i.e., heat exchange. For example, in the field of dishwasher technology, a heat exchange device (also called a heat recovery device) can exchange heat between high-temperature wastewater discharged from the dishwasher and clean tap water, thereby achieving energy saving and heat recovery. The coil fixing method in the dishwasher wastewater heat recovery device currently on the market is relatively complicated, not only requiring a jig, but also time-consuming and labor-intensive processing, and may also cause deformation of the tube body, and the finished product appearance is not beautiful. Summary of the invention

[0004] An embodiment of the present invention provides a heat exchange device to solve or alleviate one or more technical problems in the prior art.

[0005] In a first aspect, an embodiment of the present invention provides a heat exchange device, comprising a box for containing a first liquid, and a heat exchange component disposed inside the box, wherein the heat exchange component comprises:

[0006] A mounting member, wherein the mounting member is provided with a plurality of protrusions at intervals along the length direction, and a groove is formed between two adjacent protrusions;

[0007] A plurality of single tubes are provided, each of the single tubes passes through each of the grooves respectively, and the single tubes are used to contain a second liquid for heat exchange with the first liquid.

[0008] In one embodiment, the protrusion is tapered and has a pointed end.

[0009] In one embodiment, the heat exchange component further comprises:

[0010] A fixing member is fixedly connected to the mounting member, and the mounting member and the fixing member are respectively arranged on two sides of the single tube.

[0011] In one embodiment, the box body is provided with a first liquid inlet and a first liquid outlet, the first liquid inlet is used to connect to a first liquid source, and the heat exchange device further comprises:

[0012] An overflow pipe is arranged inside the box body, with both ends of the overflow pipe being open, and the first end of the overflow pipe passes through the first liquid outlet; a shielding cap is arranged at the second end of the overflow pipe, and an overflow port is formed between the shielding cap and the tube wall of the overflow pipe.

[0013] In one embodiment, the overflow pipe is pluggable and arranged at the first liquid outlet.

[0014] In one embodiment, a plurality of first liquid inlets are provided at different positions of the box body, at least one of the first liquid inlets is used to connect to a first liquid source, and the remaining first liquid inlets are covered with sealing members.

[0015] In one embodiment, a plurality of the single tubes are connected to form a through tube, and the through tube is arranged in a spiral along the circumference of the box.

[0016] In one embodiment, the box body is provided with a second liquid inlet and a second liquid outlet, the liquid inlet end of the through tube passes through the second liquid inlet and is used to connect to a second liquid source, and the liquid outlet end of the through tube passes through the second liquid outlet.

[0017] In one embodiment, the heat exchange device further comprises:

[0018] A cleaning pipe is arranged on the box body, wherein the liquid inlet end of the cleaning pipe is used to connect to a cleaning liquid source, and the liquid outlet end of the cleaning pipe is used to connect to a hose.

[0019] In one embodiment, the heat exchange device further comprises:

[0020] The cover body is arranged at the opening of the box body, and the cover body is buckled on the box body.

[0021] In one embodiment, the heat exchange device further comprises:

[0022] The cover body is arranged at the opening of the box body, and the cover body is slidably connected to the box body.

[0023] In a second aspect, an embodiment of the present invention further provides a dishwasher, comprising any of the above-mentioned heat exchange devices.

[0024] The above technical solution can not only effectively realize the heat exchange between the two liquids, but also increase the heat exchange area. In addition, the technical solution has low processing difficulty and is easy to implement.

[0025] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present invention and should not be regarded as limiting the scope of the present invention.

[0027] Figure 1 Schematic diagram of the structure of a heat exchange device according to an embodiment of the present invention.

[0028] Figure 2 Schematic diagram of the structure of a heat exchange device according to an embodiment of the present invention.

[0029] Figure 3 It is a schematic diagram of an enlarged local structure of a heat exchange device according to an embodiment of the present invention.

[0030] Figure 4 It is a schematic structural diagram of the mounting member and the fixing member of the heat exchange device according to an embodiment of the present invention.

[0031] Figure 5 It is a structural exploded view of the mounting member and the fixing member of the heat exchange device according to an embodiment of the present invention.

[0032] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0033] Description of reference numerals:

[0034] DETAILED DESCRIPTION

[0035] The principles and spirit of the present invention will be described below with reference to several exemplary embodiments. It should be understood that these embodiments are provided only to enable those skilled in the art to better understand and implement the present invention, and are not intended to limit the scope of the present invention in any way. On the contrary, these embodiments are provided to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art.

[0036] Figure 1 and Figure 2 FIG. 2 shows a schematic diagram of the structure of the heat exchange device of this embodiment. Figure 1 and Figure 2As shown, the heat exchange device of this embodiment may include a housing 100 and a heat exchange assembly 200. The heat exchange assembly 200 is disposed inside the housing 100 and includes a plurality of single tubes 210. The single tube 210 may be a round tube, a square tube, or a tube with a cross section of other shapes; the number of the single tubes 210 may be set according to actual conditions (such as the volume of the housing 100, the diameter of the single tube 210, the arrangement of the single tube 210, and the heat exchange requirements, etc.), and this embodiment does not limit this.

[0037] The box 100 can be used to contain a first liquid, and the single tube 210 can be used to contain a second liquid. The first liquid and the second liquid have a temperature difference, so that heat exchange can be performed. For example, the first liquid is high-temperature waste water from a dishwasher, and the second liquid is clean tap water or other cleaning liquid.

[0038] like Figure 3 , Figure 4 and Figure 5 As shown, the mounting member 220 is provided with a plurality of protrusions 221 at intervals along the length direction, and a groove 240 is formed between two adjacent protrusions 221, thereby forming a plurality of grooves 240 distributed at intervals along the length direction of the mounting member 220. For example, the mounting member 220 has a long strip-shaped body 222, and a plurality of protrusions 221 distributed at intervals are formed on the surface of the body 222 in the length direction of the body 222. Furthermore, each single tube 210 is respectively arranged through each groove 240, so that the plurality of single tubes 210 are arranged at intervals along the length direction of the mounting member 220, as shown in FIG. Figure 3 The individual tubes 210 are arranged at intervals, which can increase the heat exchange area between the first liquid and the second liquid, improve the heat exchange efficiency, and enhance the heat exchange effect.

[0039] In one example, each single tube 210 may be inserted into each groove 240 , respectively, thereby simplifying installation.

[0040] In one example, the protrusion 221 may be tapered to form a tip 221A and a wide end 221B. Figure 3 , Figure 4 and Figure 5 The tip 221A can increase the gap between the protrusion 221 and the outer wall of the single tube 210, thereby increasing the heat exchange area; the wide end 221B can support the interval between the two single tubes 210A and 210B.

[0041] The plurality of single tubes 210 are usually formed in one piece, so when the single tubes 210 are processed, the upper and lower tube walls of two adjacent single tubes (such as 210A and 210B) are in contact with each other, that is, the plurality of single tubes 210 are stacked together. In this embodiment, the mounting member 220 can be struck with a tool such as a mallet or a rubber hammer so that the tip 221A of the protrusion 221 is inserted between the two single tubes 210A and 210B, thereby separating the two single tubes, thereby simplifying the installation.

[0042] In this embodiment, neither auxiliary jigs nor argon arc welding are required. The single tubes 210 can be fixed together while ensuring the spacing between the single tubes 210. This can effectively reduce the processing difficulty, shorten the processing time, reduce the process cost, and avoid deformation of the tube body caused by welding.

[0043] In one example, the mounting member 220 can be fixed to the inner wall of the box 100 to fix each single tube 210 to the box 100. For example, a plurality of protrusions 221 can be fixed to the inner wall of the box 100, or the two ends of the body 222 of the mounting member 220 along the length direction can be fixed to the inner wall of the box 100 respectively.

[0044] In one example, the heat exchange assembly 200 may include a fixing member 230 such as Figure 3 , Figure 4 and Figure 5 As shown. The mounting members 220 and the fixing members 230 on both sides of the single tube 210 are fixed together, so that the single tubes 210 can be fixed together. For example, the fixing member 230 and the mounting member 220 have approximately the same length, and the mounting member 220 and the fixing member 230 can be fixed at their ends along the length direction with two bolts. For another example, as shown in FIG. Figure 5 As shown, bolts 260 are sequentially passed through the fixing member 230, the protrusion 221 of the mounting member 220, and the body 222 to fix the fixing member 230, the mounting member 220, and each single tube 210 together. The heat exchange assembly 200 can be transported separately as a whole. Further, the mounting member 220 or the fixing member 230 can be fixed to the inner wall of the box body 100 to fix each single tube 210 inside the box body 100.

[0045] It should be noted that the protrusion 221 may or may not be in contact with the fixing member 230 . Preferably, the tip 221A of the protrusion 221 is in contact with the fixing member 230 , so as to stabilize the single tube 210 and prevent the single tube 210 from shaking in the groove 240 .

[0046] In one embodiment, Figure 1 and Figure 2As shown, the housing 100 may be provided with a first liquid inlet 111 and a first liquid outlet 112. The first liquid inlet 111 may be connected to a first liquid source (such as a waste liquid outlet of a dishwasher) to inject a first liquid into the interior of the housing 100. In one example, first liquid inlets (such as 111A and 111B) may be provided at different positions of the housing 100, such as two adjacent sides. When the first liquid inlet 111A is used to inject the first liquid, the other first liquid inlet 111B may be covered with a first sealing member 130 to seal the first liquid inlet 111B. Conversely, when the first liquid inlet 111B is used to inject the first liquid, the other first liquid inlet 111A may be covered with a first sealing member to seal the first liquid inlet 111A. In this way, the installation position of the heat exchange device may be free from the influence of obstacles such as walls.

[0047] The first liquid outlet 112 may be disposed at the bottom of the housing 100, and is used to discharge the first liquid from the interior of the housing 100 to the outside. In one example, the heat exchange device of this embodiment may further include an overflow pipe 300 with both ends open. The overflow pipe 300 is disposed inside the housing 100. The first end 310 of the overflow pipe passes through the first liquid outlet 112. When the liquid level of the first liquid is higher than the second end 320 of the overflow pipe, the first liquid can flow out of the housing 100 through the overflow pipe 300; when the overflow pipe 300 is pulled out from the first liquid outlet 112, the first liquid can flow out of the housing 100 from the first liquid outlet 112.

[0048] In one example, the overflow pipe 300 may be disposed perpendicular to the bottom surface of the tank 100 or the ground.

[0049] In one example, a second sealing member 112 is disposed on the first liquid outlet 112 to seal the area of ​​the first liquid outlet 112 outside the wall of the overflow pipe 300, such as Figure 2 shown.

[0050] In one embodiment, Figure 1 As shown, the second end 320 of the overflow pipe is provided with a shielding cap 330. An overflow port 340 is formed between the shielding cap 330 and the tube wall of the overflow pipe 300. When the liquid level of the first liquid is higher than the overflow port 340, the first liquid can flow out of the housing 100 through the overflow port 340. In the process of pulling out the overflow pipe 300 from the first liquid outlet 112, the first liquid may flow back from the inside of the housing 100 to the overflow pipe 300, and then may spray out from the overflow port 340. The shielding cap 340 can shield the first liquid sprayed from the overflow port 340. To avoid splashing onto the operator's hands. For example: when the first liquid is high-temperature wastewater, scalding the operator can be avoided.

[0051] In one embodiment, Figure 1As shown, the single tubes 210 are connected to form a through tube 250 , and the through tube 250 may be spirally arranged inside the box body 100 along the circumference of the box body 100 .

[0052] In one embodiment, Figure 1 and Figure 2 As shown, the box body 100 may be provided with a second liquid inlet 121 and a second liquid outlet 122. The liquid inlet end 251 of the through pipe passes through the second liquid inlet 121 and may be connected to a second liquid source (such as a tap water pipe); the liquid outlet end 252 of the through pipe passes through the second liquid outlet 122 and may be connected to a cleaning device of a dishwasher.

[0053] In one embodiment, Figure 1 and Figure 2 As shown, the heat exchange device of this embodiment may also include a cleaning pipe 400 disposed on the housing 100, and the liquid inlet end 410 of the cleaning pipe may be used to connect to a cleaning liquid source, such as a tap water pipe; the liquid outlet end 420 of the cleaning pipe may be used to connect to a hose. The hose may be held to clean the interior of the housing 100 and the heat exchange assembly 200. In one example, the liquid inlet end 410 of the cleaning pipe may be disposed outside the housing 100, and the liquid outlet end 420 of the cleaning pipe may be disposed inside the housing 100. In one example, the cleaning pipe 400 may be entirely disposed outside the housing 100. In one example, the cleaning pipe 400 may be provided with a valve 430 for controlling the switch of the cleaning liquid.

[0054] In one embodiment, Figure 1 As shown, the heat exchange device of this embodiment may further include a cover 160 disposed at the opening 150 of the box body 100. The cover 160 may be snapped onto the top of the box body 100 to cover the opening 150; or it may be slidably connected to the box body 100 to cover the opening 150. Thus, the cover 160 may be loaded and unloaded from the top of the box body 100, or may be loaded and unloaded from the side of the box body 100 to avoid restrictions on the installation position of the heat exchange device. Preferably, a handle 161 may be provided on the surface of the cover 160 to facilitate the removal of the cover 160.

[0055] This embodiment also provides a dishwasher, which may include the heat exchange device described above. The first liquid may be waste liquid, and the second liquid may be a cleaning liquid, such as clean tap water. Other components of the dishwasher of this embodiment may adopt various technical solutions known to ordinary technicians in the field now and in the future, and will not be described in detail here.

[0056] The heat exchange device of this embodiment can increase the temperature of normal temperature tap water by about 23 degrees Celsius (under laboratory conditions); the setting of the protruding portion of the mounting part can reduce the time and difficulty of fixing the through pipe and improve the heat exchange efficiency; the setting of the cleaning module can facilitate the cleaning of the heat exchange device.

[0057] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0058] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0059] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, an electrical connection, or a communication; 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.

[0060] In the present invention, 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 above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0061] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of various changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A heat exchange device, characterized in that: It comprises a box (100) for containing a first liquid, and a heat exchange component (200) arranged inside the box, wherein the heat exchange component comprises: A mounting member (220), wherein the mounting member (220) is provided with a plurality of raised portions (221) at intervals along a length direction, and a groove (240) is formed between two adjacent raised portions; a plurality of single tubes (210), each of the single tubes passing through each of the grooves respectively, the single tubes being used to contain a second liquid for heat exchange with the first liquid; the box body is provided with a first liquid inlet (111) and a first liquid outlet (112), the first liquid inlet being used to connect to a first liquid source; A fixing member fixedly connected to the mounting member (220), the mounting member (220) and the fixing member being respectively arranged on two sides of the single tube; An overflow pipe (300) is arranged inside the box body, with both ends of the overflow pipe being open, and the first end (310) of the overflow pipe passes through the first liquid outlet; a shielding cap (330) is arranged at the second end of the overflow pipe, and an overflow outlet (340) is formed between the shielding cap and the pipe wall of the overflow pipe; the overflow pipe (300) is pluggably arranged at the first liquid outlet; the shielding cap (330) is used to shield the first liquid sprayed from the overflow outlet (340) when the overflow pipe (300) is pulled out of the first liquid outlet (112); The protrusion (221) is tapered, and the protrusion (221) has a tip (221A), and the tip (221A) is configured to increase the gap between the protrusion (221) and the outer wall of the single tube (210), and the protrusion (221) is in contact with the fixing member.

2. The heat exchange device according to claim 1, characterized in that: A plurality of first liquid inlets are provided at different positions of the box body, at least one of the first liquid inlets (111A) is used to connect to a first liquid source, and the remaining first liquid inlets (111B) are covered with sealing members (130).

3. The heat exchange device according to claim 1, characterized in that: A plurality of the single tubes are connected to form a through pipe (250), and the through pipe is arranged in a spiral along the circumference of the box body.

4. The heat exchange device according to claim 3, characterized in that: The box body is provided with a second liquid inlet (121) and a second liquid outlet (122); the liquid inlet end (251) of the through tube passes through the second liquid inlet and is used to connect to a second liquid source; the liquid outlet end (252) of the through tube passes through the second liquid outlet.

5. The heat exchange device according to any one of claims 1 to 4, characterized in that: Also includes: A cleaning pipe (400) is arranged on the box body, wherein the liquid inlet end (410) of the cleaning pipe is used to connect to a cleaning liquid source, and the liquid outlet end (420) of the cleaning pipe is used to connect to a hose.

6. The heat exchange device according to any one of claims 1 to 4, characterized in that: Also includes: A cover body (160) is arranged at the opening (150) of the box body, and the cover body is buckled onto the box body.

7. The heat exchange device according to any one of claims 1 to 4, characterized in that: Also includes: The cover body is arranged at the opening of the box body, and the cover body is slidably connected to the box body.

8. A dishwasher, characterized in that: A heat exchange device comprising any one of claims 1 to 7.

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