Heat exchanger and drinking water equipment

Abstract

The utility model provides a heat exchanger and drinking water equipment, which comprises a waterway board, a heat exchanger and a water pipe, an inlet and an outlet of each corrugated pipe are arranged at the same end of the corrugated pipe; the two connectors are respectively connected with the inlet and the outlet, so that the at least two corrugated pipes form a parallel structure, and the two connectors are used for circulating fluid in the corrugated pipes; the corrugated pipes are all located in the containing cavity so that heat exchange between fluid in the corrugated pipes and fluid in the containing cavity can be achieved. According to the heat exchanger and the drinking water equipment, the technical problem that an existing heat exchange structure is poor in heat exchange performance in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water purification equipment technical field, concretely relates to a heat exchanger and drinking water equipment. BACKGROUND

[0002] With the improvement of living standards and the enhancement of health consciousness, consumers' demand for drinking water equipment is increasingly diversified. End drinking water heating equipment, such as pipeline machine, direct drinking machine, etc., is favored because it can meet the demand for drinking water of different temperatures. Such equipment provides consumers with more convenient and healthy drinking water experience by heating purified water. In recent years, the market size of drinking water equipment such as pipeline machine and direct drinking machine has been growing continuously, and the sales channels have become increasingly diversified, especially the online sales proportion has increased significantly.

[0003] However, the existing end drinking water heating equipment has certain limitations in heat exchange structure. Taking the pipeline machine as an example, the traditional heat exchanger mostly adopts a single corrugated pipe structure, which has limited heat exchange area, resulting in limited water temperature adjustment range, and the minimum outlet water temperature can only reach 45℃. This cannot meet the precise needs of users in some specific scenarios (such as brewing drinks of specific temperature).

[0004] Therefore, the prior art needs to be further developed. SUMMARY

[0005] The utility model aims at overcoming the above technical deficiencies and providing a heat exchanger and drinking water equipment to solve the technical problem of poor heat exchange performance of the existing heat exchange structure in related technology.

[0006] To achieve the above technical purpose, the utility model adopts the following technical scheme: a heat exchanger is provided, which comprises: a waterway board having a containing cavity; at least two corrugated pipes, the inlet and outlet of each corrugated pipe are arranged at the same end of the corrugated pipe; two connecting heads connected to the inlet and outlet respectively, forming a parallel structure of at least two corrugated pipes, and the two connecting heads are used for circulating fluid in the corrugated pipe; the corrugated pipes are located in the containing cavity to realize heat exchange between the fluid in the corrugated pipe and the fluid in the containing cavity.

[0007] Further, two containing barrels are arranged on the waterway board, and a first pipeline is communicated on the containing barrel. Each connecting head is located in each containing barrel, and the first pipeline flows into or out of the fluid in the corrugated pipe through the connecting head.

[0008] Further, the connecting head comprises a first connecting block and a second connecting block in communication with each other, the first connecting block is provided with a first through hole connected with the inlet or the outlet, and the second connecting block is provided with a second through hole in communication with the first pipeline; the second connecting block is located in the accommodating cylinder, and the first connecting block is located in the accommodating cavity.

[0009] Further, the inlet and the outlet of the bellows are arranged in line along the axis of the bellows, so that the at least two first through holes are located on the same side of the first connecting block.

[0010] Further, the first connecting block is a square structure, so as to increase the area where the first through holes are arranged.

[0011] Further, the second connecting block is a cylindrical structure, and the second through hole is arranged at an end of the cylindrical structure away from the first connecting block.

[0012] Further, the inside of the accommodating cylinder is in communication with the accommodating cavity, and the heat exchanger further comprises two first sealing sleeves corresponding to the two connecting heads; the first sealing sleeve is sleeved on the second connecting block and used for sealing the accommodating cavity to prevent the fluid in the first pipeline from entering the accommodating cavity.

[0013] Further, the bottom of the first connecting block is provided with a plurality of clamping portions, and each clamping portion is uniformly distributed along the outer periphery of the first connecting block; when the first sealing sleeve is sleeved on the second connecting block, the first connecting block is lapped on the first sealing sleeve through the plurality of clamping portions, so that the first sealing sleeve is uniformly stressed.

[0014] Further, the heat exchanger further comprises a plurality of second sealing sleeves, each second sealing sleeve is located between the first through hole and the inlet or the outlet of the bellows, and is used for sealing the connection between the first through hole and the inlet and the connection between the first through hole and the outlet.

[0015] A water drinking device comprises the heat exchanger as described above.

[0016] Advantages:

[0017] 1. By adopting the structure of two or more bellows in parallel, compared with the traditional single bellows structure, the heat exchange area is significantly increased, thereby improving the heat exchange performance of the heat exchanger, so that the water drinking device can provide a wider and more accurate water temperature adjustment range, and better meet the water drinking needs of users.

[0018] 2. By the communication between the first connecting block and the second connecting block of the connecting head, and the use of the first sealing sleeve and the second sealing sleeve, the occurrence of water leakage is effectively prevented. The plurality of clamping portions arranged at the bottom of the first connecting block ensure that the first sealing sleeve can be uniformly stressed, and the sealing effect is further enhanced.

[0019] 3. The inlet and outlet of the corrugated pipe are arranged in line along the axis, compared with the traditional elbow pipe structure, the phenomenon of sealing failure of the waterway plate gasket caused by the length or bending angle of the corrugated pipe does not occur, and the sealing performance is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic diagram of an existing heat exchanger;

[0021] Figure 2 is an exploded view of an existing heat exchanger;

[0022] Figure 3 is a structural schematic diagram of a heat exchanger adopted by an embodiment of the present application from one perspective;

[0023] Figure 4 is an exploded view of a heat exchanger adopted by an embodiment of the present application;

[0024] Figure 5 is a front view of a heat exchanger adopted by an embodiment of the present application;

[0025] Figure 6 is a structural schematic diagram of a heat exchanger adopted by an embodiment of the present application from another perspective;

[0026] Figure 7 is a structural schematic diagram of a connector of a heat exchanger adopted by an embodiment of the present application;

[0027] Figure 8 is a structural schematic diagram of a corrugated pipe of a heat exchanger adopted by an embodiment of the present application;

[0028] Figure 9 is a bottom view of a connector of a heat exchanger adopted by an embodiment of the present application;

[0029] Figure 10 is a front view of a waterway plate lower cover of a heat exchanger adopted by an embodiment of the present application;

[0030] Figure 11 is a right view of a waterway plate lower cover of a heat exchanger adopted by an embodiment of the present application;

[0031] Figure 12 is a bottom view of a waterway plate lower cover of a heat exchanger adopted by an embodiment of the present application.

[0032] Among the above drawings, the following reference signs are included:

[0033] 1, waterway board; 11, containing cavity; 12, containing cylinder; 13, upper cover; 14, lower cover; 2, bellows; 21, inlet; 22, outlet; 3, connector; 31, first connecting block; 311, clamping part; 32, second connecting block; 33, first through hole; 34, second through hole; 4, first pipeline; 5, first sealing sleeve; 6, second sealing sleeve; 7, second pipeline; 8, third sealing sleeve. DETAILED DESCRIPTION

[0034] In order to make the person skilled in the art better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0035] According to the embodiment of the utility model, a heat exchanger is provided, please refer to Figures 3 to 12 , including: waterway board 1, waterway board 1 has containing cavity 11, at least two bellows 2, the inlet 21 and the outlet 22 of each bellows 2 are all arranged at the same end of bellows 2, two connectors 3 are connected with inlet 21 and outlet 22 respectively, make at least two bellows 2 form parallel structure, two connectors 3 are used to flow the fluid in bellows 2, bellows 2 are all located in containing cavity 11, to realize the heat exchange of fluid in bellows 2 and fluid in containing cavity 11. By adopting the structure of two or more bellows 2 in parallel, it is equivalent to increasing the liquid flow channel in bellows 2, thereby greatly improving the heat exchange area of the liquid in bellows 2, thereby improving the heat exchange efficiency; again, the inlet 21 and the outlet 22 of the bellows 2 are arranged at the same end of the bellows 2, and the parallel connection is realized by the connector 3, which more effectively utilizes the containing cavity 11 on the waterway board 1, and greatly reduces the installation space of the plurality of bellows 2. As Figure 1 and Figure 3 Indicated, replacing two bellows 2 in the original production and manufacturing waterway board 1 can not only realize the effect of improving heat exchange efficiency, but also indirectly avoid the problem of re-producing waterway board 1 to adapt to new structure. The structure of bellows 2 and connector 3 is relatively simple, and this design can also simplify the manufacturing process of the heat exchanger and reduce the production cost. The heat exchanger of the embodiment solves the technical problem of poor heat exchange performance of the existing heat exchange structure in the related art.

[0036] Refer to Figure 3 , Figure 4 and Figure 6The heat exchanger of the embodiment further comprises two accommodating cylinders 12 arranged on the waterway plate 1, and the first pipeline 4 is communicated with each of the accommodating cylinders 12. Each of the connecting heads 3 is arranged in each of the accommodating cylinders 12, and the first pipeline 4 flows into or out of the corrugated pipe 2 through the connecting heads 3. By arranging the connecting heads 3 in the accommodating cylinders 12, the flow path of the fluid flowing into or out of the corrugated pipe 2 is smoother, and the resistance and energy loss of the fluid flow are reduced. The accommodating cylinders 12 provide a stable support environment for the connecting heads 3, which helps to reduce the vibration and displacement of the connecting heads 3 during the fluid flow. By adjusting the length of the accommodating cylinders 12 and the connecting heads 3, the heat exchange system with different flow and pressure requirements can be adapted.

[0037] Referring to Figure 4 , Figure 7 and Figure 9 , the heat exchanger of the embodiment comprises a first connecting block 31 and a second connecting block 32 which are communicated with each other. The first connecting block 31 is provided with a first through hole 33 connected with the inlet 21 or the outlet 22, and the second connecting block 32 is provided with a second through hole 34 communicated with the first pipeline 4. The second connecting block 32 is arranged in the accommodating cylinder 12, and the first connecting block 31 is arranged in the accommodating cavity 11. The second through hole 34 of the second connecting block 32 is communicated with the first pipeline 4, so that the drinking water in the corrugated pipe 2 can flow smoothly from the first pipeline 4 into the connecting head 3, and then flow into the corrugated pipe 2 through the first through hole 33, or flow out of the corrugated pipe 2, and then flow into the first pipeline 4 through the first through hole 33 and the second through hole 34.

[0038] Referring to Figure 2 , Figure 4 , Figure 5 and Figure 8 , the heat exchanger of the embodiment comprises a first connecting block 31 and a second connecting block 32 which are communicated with each other. The first connecting block 31 is provided with a first through hole 33 connected with the inlet 21 or the outlet 22, and the second connecting block 32 is provided with a second through hole 34 communicated with the first pipeline 4. The second connecting block 32 is arranged in the accommodating cylinder 12, and the first connecting block 31 is arranged in the accommodating cavity 11. The second through hole 34 of the second connecting block 32 is communicated with the first pipeline 4, so that the drinking water in the corrugated pipe 2 can flow smoothly from the first pipeline 4 into the connecting head 3, and then flow into the corrugated pipe 2 through the first through hole 33, or flow out of the corrugated pipe 2, and then flow into the first pipeline 4 through the first through hole 33 and the second through hole 34. Figure 2 As shown in the prior art corrugated pipe, the inlet 21 and the outlet 22 of the corrugated pipe are designed as elbow pipes. Due to the errors in the length or bending angle of the elbow pipes during the production and manufacturing process, the drinking water is prone to leakage. In the embodiment, the inlet 21 and the outlet 22 of the corrugated pipe 2 are arranged in a straight line along the axis of the corrugated pipe 2, and no complex bending treatment is required. This greatly reduces the risk of uneven stress on the sealing gasket and sealing failure caused by improper bending angle or length. By simply adjusting the length of the corrugated pipe 2 inserted into the connecting head 3, the distance between the inlet and the outlet can be accurately controlled, so that the sealing gasket can be uniformly stressed and kept in an effective sealing state.

[0039] Referring to Figure 7The heat exchanger of the embodiment has a square structure for the first connecting block 31 to increase the area of the first through hole 33. The square structure of the first connecting block 31 has a larger surface area than other shapes (such as a cylinder), which means that more first through holes 33 can be arranged on the first connecting block 31.

[0040] The drinking water can have more inlet and outlet options, which means that one connector 3 can be connected in parallel with two or three or more corrugated pipes 2, as long as the inlet 21 and outlet 22 of each corrugated pipe 2 are reasonably arranged. For example, two corrugated pipes 2 are connected in parallel. In order to make the optimized structure of the scheme more suitable for the existing waterway board containing cavity 11 structure, the first through hole 33 on each connector 3 can be vertically spaced (as shown in Figure 7 The first through hole 33 can be arranged according to the thickness of the corrugated pipe 2 and the shape of the containing cavity. In short, the arrangement of multiple first through holes 33 is determined according to actual use requirements. Therefore, the square structure of the first connecting block 31 is beneficial to the arrangement of more through holes on the same side.

[0041] Referring to Figure 7 The heat exchanger of the embodiment has a cylindrical structure for the second connecting block 32, and the second through hole 34 is arranged at the end of the cylindrical structure away from the first connecting block 31. The cylindrical second connecting block 32 can be more conveniently installed into the containing cylinder 12.

[0042] Referring to Figure 4 , Figure 5 , Figure 6 and Figure 10 The heat exchanger of the embodiment has a cylindrical structure for the second connecting block 32, and the second through hole 34 is arranged at the end of the cylindrical structure away from the first connecting block 31. The cylindrical second connecting block 32 can be more conveniently installed into the containing cylinder 12.

[0043] Referring to Figure 9The heat exchanger of the embodiment is provided with a plurality of clamping portions 311 on the bottom of the first connecting block 31, and each clamping portion 311 is uniformly distributed along the outer periphery of the first connecting block 31; when the first sealing sleeve 5 is sleeved on the second connecting block 32, the first connecting block 31 is lapped on the first sealing sleeve 5 through the plurality of clamping portions 311, so that the first sealing sleeve 5 is uniformly stressed. The first sealing sleeve 5 that is uniformly stressed can better fit on the second connecting block 32, and the gap caused by uneven stress is reduced, so that the sealing performance of the heat exchanger is improved.

[0044] Referring to Figure 9 The heat exchanger of the embodiment further comprises a plurality of second sealing sleeves 6, and each second sealing sleeve 6 is located between the first through hole 33 and the inlet 21 or the outlet 22 of the corrugated pipe 2, and is used for sealing the connection between the first through hole 33 and the inlet 21 and the connection between the first through hole 33 and the outlet 22. The second sealing sleeve 6 can tightly fit on the connection between the first through hole 33 and the inlet and outlet of the corrugated pipe 2, effectively preventing the waste caused by the leakage of drinking water. In the multi-medium heat exchanger, the first sealing sleeve 5 and the second sealing sleeve 6 can prevent the mixing of different media.

[0045] Referring to Figure 4 , Figure 10 , Figure 11 and Figure 12 The embodiment is further provided with a third sealing sleeve 8, which is used for sealing the first pipeline 4 and the second pipeline 7, and preventing the leakage of drinking water and heat exchange liquid outside the heat exchanger.

[0046] The water dispensing equipment of the embodiment comprises the heat exchanger as described above. Compared with the single corrugated pipe structure, one corrugated pipe is added and the connection mode of the corrugated pipe and the waterway plate is changed. The original structure is that the corrugated pipe is bent and then pressed into the waterway plate by a tool, but this may cause the sealing ring to be extruded and lead to sealing failure. The new structure adopts the connecting head 3 for connection. First, the two second sealing sleeves 6 are pressed into the first through holes 33 on the first connecting block 31 of the connecting head 3, then the inlet 21 and the outlet 22 of the two corrugated pipes 2 are inserted into the first through holes 33, and then the connected corrugated pipe assembly is placed into the lower cover 14 of the waterway plate, and the lower end of the connecting head 3 is pressed into the first sealing sleeve 5 that is previously placed in the waterway plate 1. This scheme does not need to bend the corrugated pipe, and the distance can be controlled by adjusting the length of the corrugated pipe inserted into the connecting head 3, so that the sealing failure of the sealing gasket of the waterway plate caused by the length or bending angle of the corrugated pipe is avoided. Through this scheme, the minimum outlet water temperature of the water dispensing equipment (such as a pipeline machine and a direct drinking machine) can be improved to 45°, and the outlet water volume is simultaneously increased, and the hidden danger of air leakage of the sealing gasket of the waterway plate is solved.

[0047] It should be noted that the terms "first", "second" and the like in the description and in the claims of the present application are used for distinguishing between similar objects and not necessarily for describing a sequential or chronological order. It is to be understood that the data used herein can be interchanged, in suitable cases, without departing from the scope of the present application as described herein. Furthermore, the terms "comprise", "comprising", "include", "including", and the like are to be construed in a non- limiting fashion as meaning that recited means or steps can be present, or combined, or that recited steps can be repeated or combined, unless otherwise indicated. The terms "plurality" and "a plurality" contained herein refer to two or more.

[0048] Optionally, the specific examples in the embodiments can refer to the examples described in the above embodiments, and the embodiments will not be described here again.

[0049] The serial numbers of the above embodiments of the present application are only for description, not representing the advantages and disadvantages of the embodiments.

[0050] In the above embodiments of the present application, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0051] The above only describes the preferred embodiments of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should be considered as the protection scope of the present application.

Claims

1. A heat exchanger, characterized by, The application relates to a heat exchanger. The heat exchanger comprises a waterway plate (1) with a containing cavity (11), at least two bellows (2), the inlet (21) and the outlet (22) of each of the bellows (2) being arranged at the same end of the bellows (2), two connecting heads (3) respectively connected with the inlet (21) and the outlet (22) to form a parallel structure of the at least two bellows (2), the two connecting heads (3) being used for circulating fluid in the bellows (2), and the bellows (2) being arranged in the containing cavity (11) to realize heat exchange between fluid in the bellows (2) and fluid in the containing cavity (11). The waterway plate (1) is further provided with two containing barrels (12), the containing barrels (12) are communicated with first pipes (4), each of the connecting heads (3) is arranged in each of the containing barrels (12), and the first pipes (4) are used for flowing into or flowing out of fluid in the bellows (2) through the connecting heads (3). The connecting head (3) comprises a first connecting block (31) and a second connecting block (32) communicated with each other, the first connecting block (31) is provided with a first through hole (33) connected with the inlet (21) or the outlet (22), the second connecting block (32) is provided with a second through hole (34) communicated with the first pipe (4), the second connecting block (32) is arranged in the containing barrel (12), and the first connecting block (31) is arranged in the containing cavity (11).

2. The heat exchanger of claim 1, wherein The inlet (21) and the outlet (22) of the bellows (2) are arranged in a straight line along the axis of the bellows (2), so that the at least two first through holes (33) are arranged on the same side of the first connecting block (31).

3. The heat exchanger of claim 2, wherein, The first connecting block (31) is a square structure, so that the area of the first through hole (33) is increased.

4. The heat exchanger of claim 3, wherein The second connecting block (32) is a cylindrical structure, and the second through hole (34) is arranged at one end of the cylindrical structure away from the first connecting block (31).

5. The heat exchanger of claim 4, wherein, The inside of the containing barrel (12) is communicated with the containing cavity (11), the heat exchanger further comprises two first sealing sleeves (5) arranged in correspondence with the two connecting heads (3), the first sealing sleeve (5) is sleeved on the second connecting block (32) and is used for sealing the containing cavity (11) to prevent fluid in the first pipe (4) from entering the containing cavity (11).

6. The heat exchanger of claim 3, wherein The bottom of the first connecting block (31) is provided with a plurality of clamping portions (311) uniformly distributed along the outer periphery of the first connecting block (31), and when the first sealing sleeve (5) is sleeved on the second connecting block (32), the first connecting block (31) is lapped on the first sealing sleeve (5) through the plurality of clamping portions (311), so that the first sealing sleeve (5) is uniformly stressed.

7. The heat exchanger of claim 3, wherein ​ 8. The heat exchanger of claim 7, wherein, ​ 9. The heat exchanger of claim 3, wherein, The heat exchanger further comprises a plurality of second sealing sleeves (6), each of the second sealing sleeves (6) being located between the first through hole (33) and the inlet (21) or the outlet (22) of the corrugated pipe (2) for sealing the connection between the first through hole (33) and the inlet (21) and the first through hole (33) and the outlet (22).

10. A drinking water apparatus, characterized in that A heat exchanger comprising a heat exchanger according to any one of claims 1-9.

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