Heat exchanger

Abstract

The heat exchanger comprises an end cover, a baffle, a shell and a water pipe, the shell is of an integrated connection structure, the shell is provided with a flow channel, a shell inlet, a shell outlet, a first end opening and a second end opening, and the shell inlet, the shell outlet, the first end opening and the second end opening are communicated with the flow channel. The two baffles are assembled on the first end opening and the second end opening of the shell in a sealed mode respectively, the water pipe is arranged in a flow channel of the shell in a penetrating mode, and a certain distance is formed between the water pipe and the inner wall of the flow channel so that a heat exchange flow channel can be formed. The two ends of the water pipe penetrate through the baffles at the two ends respectively and are in sealing fit. The end covers are assembled on the outer sides of the baffles in a sealed mode. A water inlet and a water outlet which are communicated with a water pipe are formed in the end covers. The water inlet, the water pipe and the water outlet are communicated and form a first channel; and the shell inlet, the heat exchange flow channel and the shell outlet are communicated to form a second channel. Due to the fact that the shell is of an integrated connection structure, the baffles and the end covers are arranged at the two ends of the shell and matched in a sealed mode, the water pipe is arranged in the flow channel of the shell in a penetrating mode to conduct heat exchange, the number of parts needing to be sealed is small, the area needing to be matched in a sealed mode is small, and the sealing performance of the heat exchanger can be better guaranteed.

Description

Technical Field

[0001] The utility model relates to a heat exchanger. Background Art

[0002] The working principle of heat exchanger is based on the second law of thermodynamics, that is, heat energy will automatically transfer from high temperature objects to low temperature objects. Heat exchanger usually consists of two or more pipes, in which different fluids flow. When one fluid has a higher temperature and the other has a lower temperature, heat energy will be transferred from the high temperature fluid to the low temperature fluid. Heat exchanger is one of the most important components in household appliances, especially water dispensers. It can effectively separate drinking water and cold and heat sources, ensuring the hygiene and safety of drinking water and constant temperature.

[0003] For example, an existing heat exchanger, a Chinese patent document with publication number CN219301379U discloses a snap-on heat exchange module, including an upper cover, a hot water pipe, a first waterway plate, a second waterway plate, a first seal, a second seal, a third seal and a lower cover; the hot water pipe is installed on the first seal, the second seal and the third seal, the first seal is installed between the upper cover and the first waterway plate, the second seal is installed between the first waterway plate and the second waterway plate, and the third seal is installed between the second waterway plate and the lower cover; a cold water pipe is formed between the upper cover and the first waterway plate, between the first waterway plate and the second waterway plate, and between the second waterway plate and the lower cover, and the hot water pipe is sleeved in the cold water pipe; the cross-section of the hot water pipe is a rounded rectangle and / or an I-shape.

[0004] The assembly method of this snap-on heat exchange module is complex and requires the coordination of multiple sealing components. The coordination area between the upper and lower cover plates and the waterway plate is large, and the sealing requirements are high, which makes it easy for liquid to leak. Utility Model Content

[0005] Therefore, the utility model provides a heat exchanger to solve the above problems.

[0006] To achieve the above purpose, the technical solution provided by the utility model is as follows:

[0007] A heat exchanger comprises an end cover, a baffle, a shell and a water pipe, wherein the shell is an integrally connected structure, the shell having a flow channel and a shell inlet, a shell outlet, a first end opening and a second end opening connected to the flow channel; the number of the baffles is two and they are respectively sealed and assembled on the first end opening and the second end opening of the shell, the water pipe is passed through the flow channel of the shell, and there is a certain distance between the water pipe and the inner wall of the flow channel to form a heat exchange flow channel; the two ends of the water pipe respectively pass through the baffles at both ends and form a sealed fit; the end covers are all sealed and assembled on the outside of the baffles, and the water inlet and water outlet connected to the water pipe are arranged on the end covers; the water inlet, water pipe and water outlet are connected and form a first channel; the shell inlet, heat exchange flow channel and shell outlet are connected and form a second channel.

[0008] Furthermore, there are multiple water pipes, and the multiple water pipes are connected end to end to form a circuitous first channel.

[0009] Specifically, the end cover is provided with a turning groove, and the head and tail ends of two adjacent water pipes are adjacently connected through the turning groove.

[0010] Furthermore, a raised protrusion is provided in the turning groove.

[0011] Furthermore, the shell has a plurality of flow channels, and the plurality of flow channels are connected end to end to form a circuitous second channel; and a water pipe is provided in each flow channel.

[0012] Furthermore, the shell forms a gap between the ends of two adjacent flow channels, and the ends of the two adjacent flow channels are connected through the gap.

[0013] Furthermore, the baffle includes a plate body having a first surface and a second surface opposite to each other, a first matching portion protruding from the first surface of the plate body, and a second matching portion protruding from the second surface of the plate body, the first matching portion is inserted into the first end opening or the second end opening of the shell to form a sealing fit, and the second matching portion is inserted into the end cover to form a sealing fit.

[0014] Furthermore, the outer peripheries of the first mating portion and the second mating portion of the baffle are both provided with an annular elastic protrusion, the elastic protrusion of the first mating portion abuts against the inner wall of the first end opening or the second end opening to form a sealed fit, and the elastic protrusion of the second mating portion abuts against the inner wall of the end cover to form a sealed fit.

[0015] Furthermore, the baffle is made of silicone.

[0016] Furthermore, the end cover is connected to the shell by bolts, so that the end cover, the baffle and the shell are tightly fitted.

[0017] The technical solution provided by the utility model has the following beneficial effects:

[0018] The heat exchanger provided by the utility model has a shell that is an integrally connected structure. The baffle and the end cover are arranged at both ends of the shell and sealed together. The water pipe is passed through the flow channel of the shell to perform heat exchange. Fewer parts need to be sealed, and the area that needs to be sealed is smaller, thereby better ensuring its sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Shown is a perspective view of a heat exchanger in an embodiment;

[0020] Figure 2 Shown is an exploded view of the parts of a heat exchanger in an embodiment;

[0021] Figure 3 Shown is a cross-sectional view of a heat exchanger in an embodiment;

[0022] Figure 4 The figure shows a cross-sectional view of the sealing cooperation of the end cover, the baffle, the water pipe and the housing in the embodiment;

[0023] Figure 5 The figure shows a cross-sectional view of the assembly structure of the baffle and the housing in the embodiment;

[0024] Figure 6 Shown is a side view of the end cap in the embodiment;

[0025] Figure 7 Shown Figure 3 Sectional view along line AA;

[0026] Figure 8 The figure shows a cross-sectional view of the assembly structure of the end cover, the baffle plate and the water pipe in the embodiment;

[0027] Fig. 9 Shown is a cross-sectional view of a housing in an embodiment;

[0028] Fig.10 Shown Figure 3 A magnified schematic diagram of area B. DETAILED DESCRIPTION

[0029] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0030] In the description of the present invention, terms such as "up", "down", "left", "right", "front", "back", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0031] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0032] Reference Figures 1 to 10 As shown, a heat exchanger provided in this embodiment includes an end cover 1, a baffle 2, a shell 3 and a water pipe 4, wherein the shell 3 is an integrally connected structure, and the shell 3 has a flow channel 5 and a shell inlet 31, a shell outlet 32, a first end opening 33 and a second end opening 34 connected to the flow channel 5. The first end opening 33 and the second end opening 34 are provided to facilitate processing of the flow channel 5 on the shell 3 of the integrally connected structure; the number of the baffles 2 is two and they are respectively sealed and assembled on the first end opening 33 and the second end opening 34 of the shell 3, the water pipe 4 is penetrated in the flow channel 5 of the shell 3, and the water pipe 4 has a certain connection with the inner wall of the flow channel 5. The spacing forms a heat exchange flow channel; the two ends of the water pipe 4 pass through the baffles 2 at both ends and form a sealing fit; the end caps 1 are sealed and assembled on the outside of the baffles 2, and the water inlet 11 and the water outlet 12 connected to the water pipe 4 are arranged on the end caps 1. In this embodiment, the water inlet 11 is arranged on one of the end caps 1, and the water outlet 12 is arranged on the other end cap 1. Of course, in other embodiments, the water inlet 11 and the water outlet 12 can also be arranged on the same end cap 1; the water inlet 11, the water pipe and the water outlet 12 are connected and form a first channel; the shell inlet 31, the heat exchange flow channel and the shell outlet 32 ​​are connected and form a second channel. The shell is an integrated connection structure. By arranging the baffles and the end caps at both ends of the shell and sealing them, the water pipe is passed through the flow channel of the shell for heat exchange. There are fewer parts to be sealed and a smaller area to be sealed, which better ensures its sealing performance.

[0033] Furthermore, the number of the water pipes 4 is multiple, and the multiple water pipes 4 are connected end to end to form a circuitous first channel. Figure 8 As shown, by setting a plurality of water pipes 4, water flows in the heat exchanger, and the direction of the water flow is as follows: Figure 8 As shown by the arrows in the figure, the heat contact area and time between the water pipe 4 and the flow channel 5 for heat exchange are increased, thereby improving the heat exchange efficiency.

[0034] Specifically, the end cover 1 is provided with a turning groove 13 , and the head and tail ends of two adjacent water pipes 4 are adjacently connected through the turning groove 13 to achieve the flow of water between the two adjacent water pipes 4 .

[0035] Furthermore, a protruding portion 14 is provided in the turning groove 13. Fig.10 As shown, when the two ends of the water pipe 4 pass through the baffles 2 at both ends and form a sealed fit, if the water pipe 4 protrudes too much from the outer side of the baffle 2 on one side, one end of the water pipe 4 will be too close to the end cover 1, or even conflict with the end cover 1, thereby affecting the water inflow and outflow of the water pipe 4. The protrusion 14 can conflict with the water pipe 4, so that the two ends of the water pipe 4 are inside the baffle 2 without protruding too much, and then the protrusion 14 can fix the position of the water pipe 4 and guide the water flow in the direction of the water pipe.

[0036] Furthermore, the housing 3 has a plurality of flow channels 5, and the plurality of flow channels 5 are connected end to end to form a circuitous second channel; and each flow channel 5 is provided with a water pipe 4. Fig. 9 As shown, by providing a plurality of the flow channels 5, the heat exchange fluid flows in the flow channels, and the flow direction of the heat exchange fluid is as follows: Fig. 9 As shown by the arrows in the figure, the heat contact area and time of the flow channel 5 and the water pipe 4 for heat exchange are uniformly increased to improve the heat exchange efficiency.

[0037] Furthermore, the shell 3 forms a notch 51 between the ends of two adjacent flow channels 5 , and the ends of two adjacent flow channels 5 are connected through the notch 51 to achieve the flow of the heat exchange fluid between the two adjacent flow channels 5 .

[0038] Furthermore, the baffle 2 includes a plate body 21 having a first surface and a second surface facing each other, a first matching portion 22 protruding from the first surface of the plate body, and a second matching portion 23 protruding from the second surface of the plate body 21. The first matching portion 22 is inserted into the first end opening 33 or the second end opening 34 of the shell 3 to form a sealed fit, and the second matching portion 23 is inserted into the end cover 1 to form a sealed fit. By providing the first matching portion 22, the contact area between the baffle 2 and the shell 3 is increased, the sealing performance is improved, and water is prevented from directly flowing out of the gap between the baffle 2 and the shell 3; and the positional relationship between the water pipe 4 and the flow channel 5 is fixed to ensure uniformity and stability of the heat exchange process. By providing the first matching portion 22 and the second matching portion 23, the baffle 2 is sealed and nested with the shell 3 and the end cover 1, the overall structure is fixed, and the sealing performance is improved at the same time.

[0039] Furthermore, the outer peripheries of the first mating portion 22 and the second mating portion 23 of the baffle 2 are both provided with an annular elastic protrusion 24, the elastic protrusion 24 of the first mating portion 22 abuts against the inner wall of the first end opening 33 or the second end opening 34 to form a sealed fit, and the elastic protrusion 24 of the second mating portion 23 abuts against the inner wall of the end cover 1 to form a sealed fit. By providing the elastic protrusion 24, the baffle 2 is further sealed with the housing 3 and the end cover 1, thereby improving the sealing performance. Of course, in other embodiments, the elastic protrusion 24 may also be other components that are convenient for installation and ensure sealing performance, such as a sealing ring.

[0040] Furthermore, the baffle 2 is made of silicone, which is relatively soft and convenient for installation and coordination with other components, and ensures its sealing performance. Of course, in other embodiments, the baffle 2 may also be made of other materials that are convenient for installation and coordination and ensure sealing performance.

[0041] Furthermore, the end cover 1 is connected to the shell 3 by bolts, and the end cover 1, the baffle 2 and the shell 3 are tightly matched, further improving the sealing of the heat exchanger. Of course, in other embodiments, the end cover 1 can also be connected to the shell 3 by other means, such as a buckle or mortise and tenon structure.

[0042] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes may be made to the present invention in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A heat exchanger, comprising an end cover, a baffle, a shell and a water pipe, characterized in that: The shell is an integrally connected structure, and the shell has a flow channel and a shell inlet, a shell outlet, a first end opening and a second end opening connected to the flow channel; the number of the baffles is two and they are respectively sealed and assembled on the first end opening and the second end opening of the shell, the water pipe is arranged in the flow channel of the shell, and the water pipe and the inner wall of the flow channel have a certain distance to form a heat exchange flow channel; the two ends of the water pipe respectively pass through the baffles at both ends and form a sealed fit; the end covers are all sealed and assembled on the outside of the baffles, and the water inlet and water outlet connected to the water pipe are arranged on the end covers; the water inlet, water pipe and water outlet are connected and form a first channel; the shell inlet, heat exchange flow channel and shell outlet are connected and form a second channel.

2. The heat exchanger according to claim 1, characterized in that There are multiple water pipes, and the multiple water pipes are connected end to end to form a circuitous first channel.

3. The heat exchanger according to claim 2, characterized in that The end cover is provided with a turning groove, and the head and tail ends of two adjacent water pipes are adjacently connected through the turning groove.

4. The heat exchanger according to claim 3, characterized in that A raised protrusion is arranged in the turning groove.

5. The heat exchanger according to claim 2, characterized in that The shell has a plurality of flow channels, and the plurality of flow channels are connected end to end to form a circuitous second channel; a water pipe is arranged in each flow channel.

6. The heat exchanger according to claim 5, characterized in that The shell forms a gap between the ends of two adjacent flow channels, and the ends of the two adjacent flow channels are connected through the gap.

7. The heat exchanger according to claim 1, characterized in that The baffle includes a plate body having a first surface and a second surface opposite to each other, a first matching portion protruding from the first surface of the plate body, and a second matching portion protruding from the second surface of the plate body, the first matching portion is inserted into the first end opening or the second end opening of the shell to form a sealed fit, and the second matching portion is inserted into the end cover to form a sealed fit.

8. The heat exchanger according to claim 7, characterized in that The outer peripheries of the first mating portion and the second mating portion of the baffle are both provided with an annular elastic protrusion, the elastic protrusion of the first mating portion abuts against the inner wall of the first end opening or the second end opening to form a sealed fit, and the elastic protrusion of the second mating portion abuts against the inner wall of the end cover to form a sealed fit.

9. The heat exchanger according to claim 1, characterized in that The baffle is made of silica gel.

10. The heat exchanger according to claim 1, characterized in that The end cover is connected to the shell by bolts, so that the end cover, the baffle and the shell are tightly matched.

Images