Heat exchanger structure

Abstract

A heat exchanger structure comprises a rotary drum main body, the rotary drum main body is internally provided with a cavity used for containing liquid, and the end face of the rotary drum main body is provided with a first channel containing a water inlet and outlet pipe; the heat exchanger is arranged on the inner wall or the end face of the rotary drum main body, and a second channel for cooling water to circulate is formed in the heat exchanger; a rotary joint is arranged on the outer end face of the rotary drum main body, a cooling water exchange interface is formed in the surface of the rotary joint, a third channel is formed in the rotary joint, and the first channel, the second channel and the third channel are communicated with one another. The heat exchanger has the advantages that the heat exchange area is increased, and the heat exchange efficiency is high; 2, energy loss is reduced, and contact with outside air is avoided; 3, the structure is simple, and an experiment box and a pump-out structure are not needed; cleaning is easy, and the risk of leather pollution is avoided.

Description

Technical Field

[0001] The utility model relates to the leather processing industry, and particularly to a heat exchanger structure. Background Art

[0002] The rotating drum is an essential equipment for soaking, liming, tanning, and dyeing fur in the leather industry to form leather embryos. At present, during the leather tanning / retanning and dyeing process, the temperature of the bath solution needs to be controlled because during the operation of the rotating drum, heat is generated by the friction between the leather and the rotating drum, and the temperature of the bath solution will gradually increase, affecting the quality of the leather. Therefore, it is necessary to control the temperature and cool the bath solution. The traditional method is to adopt a pump water structure in the drum to discharge the bath solution through the drum shaft to an experimental box beside the drum, and a heat exchanger is added at the lower part of the experimental box to introduce cooling water to control the temperature and cool the bath solution. The above process has the following disadvantages:

[0003] 1. Only the inner surface of the experimental box in contact with the bath solution can play a cooling role, and the contact area is very small, so effective heat exchange cannot be achieved;

[0004] 2. Since heat exchange also occurs between the outer surface of the heat exchanger and the surrounding air, the energy loss is large;

[0005] 3. A pumping structure needs to be added inside the drum, and an experimental box needs to be added outside the drum;

[0006] 4. Dyes and other chemicals in the bath solution will adhere to the inner surface of the experimental box, and cleaning is very troublesome. If the workers do not clean it, it will contaminate the next drum of leather. Content of the Utility Model

[0007] The purpose of the present disclosure is to provide a heat exchanger structure.

[0008] In view of the above technical problems, the present disclosure adopts the following technical solutions:

[0009] A heat exchanger structure, comprising:

[0010] A rotating drum main body, a cavity for accommodating liquid is arranged inside the rotating drum main body, and a first channel including an inlet and outlet water pipe is arranged on the end surface of the rotating drum main body;

[0011] A heat exchanger, the heat exchanger is arranged on the inner wall or end surface of the rotating drum main body, and a second channel for the circulation of cooling water is arranged inside the heat exchanger;

[0012] A rotary joint is arranged at one end of the drum shaft of the rotating drum main body, a cooling water inlet and outlet interface is arranged on the surface of the rotary joint, and a third channel for the circulation of cooling water is arranged inside the rotary joint. The first channel, the second channel and the third channel are communicated with each other.

[0013] Preferably, the heat exchanger includes a rectangular heat exchanger and an oval heat exchanger.

[0014] Preferably, the second channel in the oval heat exchanger is arranged in an "S" shape, and the cooling water inlet and outlet are in the center of the heat exchanger.

[0015] Preferably, the second channel in the rectangular heat exchanger is arranged in an "S" shape, and the cooling water inlet and outlet are arranged in the middle of the upper end of the heat exchanger.

[0016] Preferably, the cooling water exchange interface includes a water outlet and a water inlet, and an inclination angle is set between the water outlet and the inlet and outlet.

[0017] Preferably, the first channel includes a plurality of sub-channels, and the number of the sub-channels matches the number of the heat exchangers. Preferably, the end face of the drum body is threadedly connected to the heat exchanger.

[0018] Preferably, a water pipe inlet is arranged on the other outer end face of the drum body.

[0019] Preferably, an oval heat exchanger installation position is arranged on the inner end face of the drum body, and a rectangular heat exchanger installation position is arranged on the inner wall of the drum body.

[0020] The technical solutions claimed in the present disclosure have achieved the following beneficial effects:

[0021] 1. High-efficiency heat exchange performance: By arranging the first channel on the inner and outer walls of the drum body and the third channel inside the rotary joint, a comprehensive fluid network is formed with the second channel having a heat exchange function.

[0022] 2. Compact structure: The heat exchanger is designed compactly, utilizing the inner wall and end face space of the drum body, as well as the surface and interior of the rotary joint, saving space.

[0023] 3. Diversified heat exchanger types: Combining rectangular heat exchangers and oval heat exchangers can adapt to different fluid characteristics and heat exchange requirements.

[0024] 4. Optimized flow channel layout: The second channel in the oval heat exchanger flows through the entire heat exchanger in a circuitous manner along the S-shaped channel and then flows out from the center, while the second channel in the rectangular heat exchanger enters the heat exchanger from the middle of the upper end, flows in a circuitous manner along the vertical channel, flows through the entire heat exchanger, and then flows out from the middle of the upper end. Such a layout helps the fluid to perform efficient heat exchange inside the heat exchanger.

[0025] 5. Improved cooling water exchange efficiency: The cooling water exchange interface includes a water outlet and a water inlet, and an inclination angle is set between the two, which helps to improve the flow efficiency of the cooling water and reduce the interference of the inlet and outlet water pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 One of the schematic diagrams of the drum body in the present disclosure;

[0027] Figure 2 It is the second schematic diagram of the drum body in the present disclosure;

[0028] Figure 3 It is the third schematic diagram of the drum body in the present disclosure;

[0029] Figure 4 It is the schematic diagram of the rectangular heat exchanger in the present disclosure;

[0030] Figure 5 It is the internal schematic diagram of the rectangular heat exchanger in the present disclosure;

[0031] Figure 6 It is the schematic diagram of the elliptical heat exchanger in the present disclosure;

[0032] Figure 7 It is the internal schematic diagram of the elliptical heat exchanger in the present disclosure;

[0033] Figure 8 It is the schematic diagram of the elliptical heat exchanger installed on the end face of the drum body in the present disclosure;

[0034] Figure 9 It is the schematic diagram of the first channel in the present disclosure;

[0035] Figure 10 It is the schematic diagram of the rotary joint in the present disclosure;

[0036] Figure 11 It is the cross-sectional view of the rotary joint in the present disclosure;

[0037] Figure 12 It is the cross-sectional view of the drum body after installing the heat exchanger in the present disclosure;

[0038] Figure 13 It is Figure 12 The enlarged view at position A in Detailed implementation manners

[0039] To make the objectives, technical solutions, and beneficial effects of the embodiments in the present disclosure clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present disclosure.

[0040] Refer to the attached Figures 1-3 And the attached Figures 4-7 , A heat exchanger structure includes the following components:

[0041] The drum body 1 is a hollow cylindrical structure, a cavity for accommodating the liquid to be cooled.

[0042] On the end face of the drum body 1, a first channel 11 is designed, which includes an inlet and outlet pipe for sending cooling water to the heat exchanger.

[0043] It also includes heat exchangers of two shapes, which can be rectangular or oval heat exchangers correspondingly. Among them, the rectangular heat exchanger 2 is installed on the inner wall of the drum body 1, and the oval heat exchanger 3 is installed on the end face of the drum body 1.

[0044] Correspondingly, a second channel 21 for the circulation of cooling water is designed inside the two heat exchangers. The first channel 11 and the third channel 43 are channels including an inlet pipe and an outlet pipe.

[0045] The cooling water in the second channel 21 of the oval heat exchanger 3 enters the heat exchanger from the center, flows through the whole heat exchanger along the S-shaped channel in a circuitous manner, and then flows out from the center. In this way, the area through which the cooling water passes can be made as large as possible, and it is a one-way flow. The cooling water in the second channel 21 of the rectangular heat exchanger enters the heat exchanger from the middle of the upper end of the heat exchanger, flows through the whole heat exchanger after flowing through the channel in a circuitous manner, and then flows out from the middle of the upper end of the heat exchanger. This can better adapt to different installation environments, especially inside heat exchangers with limited space, making the heat exchanger design more compact.

[0046] The rotary joint 4 is arranged on the outer drum shaft of the drum body 1 and has a cooling water exchange interface on its surface, including a water outlet 41 and a water inlet 42. An inclined angle is set between the two interfaces to prevent the inlet and outlet water pipes from interfering with each other.

[0047] A third channel 43 including an inlet and outlet pipe is designed inside the rotary joint 4, which is interconnected with the first channel 11 and the second channel 21 to form a complete loop.

[0048] Refer to the appendix Figures 8-11 Furthermore, the heat exchanger in this embodiment has the following structure:

[0049] The heat exchanger on the end face of the drum body 1 is installed by ordinary thread connection, ensuring the stable installation and convenient replacement of the heat exchanger. The first channel 11 in the drum body 1 is composed of several sub-channels, and inlet and outlet pipes are arranged in these sub-channels. The number of sub-channels is equivalent to the number of heat exchangers.

[0050] The outer end surface of the drum body 1 is provided with a water pipe inlet 5, and the inner end surface of the drum body 1 is specially designed with an elliptical heat exchanger mounting position 22, whose shape just matches the appearance of the heat exchanger, for fixing the elliptical heat exchanger 33. Correspondingly, a rectangular heat exchanger mounting position 32 is designed on the inner wall of the drum body 1, whose shape just matches the appearance of the heat exchanger to optimize space utilization. At the cooling water exchange interface of the rotary joint 4, the water outlet 41 and the water inlet 42 are connected to the cooling water unit, and there is also a temperature control system to control the flow of cooling water.

[0051] Reference Figures 12-13 In combination with the above, the specific working method of the heat exchanger in this embodiment is as follows:

[0052] Water, chemical materials, leather and other raw materials are added into the cavity of the drum body 1, and the cooling water enters the third channel 43 through the water inlet 42 of the rotary joint 4, and then flows into the first channel 11 on the drum body 1, and then flows from the first channel 11 to the second channel 21 of the heat exchanger. Through the heat exchange in the second channel 21, the bath liquid in the drum body 1 is cooled. When the heat exchanger is in a rectangular style, it is evenly distributed on the inner wall of the drum body 1, the number is 2 or 3, and it is connected to the second channel 21 of the heat exchanger through a T-shaped branching sub-channel, which increases the heat exchange area and improves the heat exchange efficiency. When the heat exchanger is in an elliptical style, it is distributed on the end surface of the drum body 1, directly connecting the first channel 11 with the second channel 21 of the heat exchanger, and no branching sub-channel is set.

[0053] During the cooling process, one end of the rotary joint 4 is fixed, and the other end rotates with the drum body 1. A rotary flange is provided at the front end of the rotary joint 4. The rotation principle and structure refer to the prior art. After completing the heat exchange, the cooling water flows back to the refrigeration unit through the water outlet 41 of the rotary joint 4 for cooling, and re-enters the system through the water inlet 42 to form a cycle. The flow rate of the refrigeration unit can be controlled by the temperature detection probe and PLC controller of the drum to meet different cooling needs.

[0054] In summary, the heat exchanger in this embodiment is added inside the drum, and cooling water is passed into the drum through a rotary joint installed on the drum shaft to control the temperature, which has the following advantages:

[0055] 1. Increase the heat exchange area and improve the heat exchange efficiency; 2. Reduce energy loss and no contact with the outside air; 3. Simple structure, no need for test box and pump-out structure; 4. Easy to clean, no risk of contaminating leather.

[0056] As described above, it is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims described above.

Claims

1. A heat exchanger structure, characterized in that, Comprising: A drum main body (1), with a cavity for accommodating liquid provided inside the drum main body (1), and a first channel (11) including an inlet and outlet pipe provided on the end face of the drum main body (1); A heat exchanger, which is provided on the inner wall or end face of the drum main body (1), and a second channel (21) for the circulation of cooling water is provided inside the heat exchanger; A rotary joint (4) is provided on the outer drum shaft of the drum main body (1), a cooling water exchange interface is provided on the surface of the rotary joint (4), a third channel (43) for the circulation of cooling water is provided inside the rotary joint (4), and the first channel (11), the second channel (21) and the third channel (43) are in communication with each other.

2. The heat exchanger structure according to claim 1, characterized in that, The heat exchanger includes a rectangular heat exchanger (2) and an oval heat exchanger (3).

3. The heat exchanger structure according to claim 2, wherein, The second channel (21) in the oval heat exchanger (3) is arranged in an "S" shape, and the cooling water inlet and outlet are provided in the center of the heat exchanger.

4. The heat exchanger structure according to claim 2, characterized in that, The second channel (21) in the rectangular heat exchanger (2) is arranged in an "S" shape, and the cooling water inlet and outlet are provided in the middle of the upper end of the heat exchanger.

5. A heat exchanger structure according to claim 1, characterized in that, The cooling water exchange interface includes a water outlet (41) and a water inlet (42), and an inclination angle is provided between the water outlet (41) and the water inlet (42).

6. The heat exchanger structure according to claim 1, characterized in that The first channel (11) includes a number of sub-channels, and the number of the sub-channels matches the number of the heat exchangers.

7. A heat exchanger structure according to claim 1, characterized in that, The end face and inner wall of the drum main body (1) are threadedly connected to the heat exchanger.

8. A heat exchanger structure according to claim 1, characterized in that, A water pipe inlet (5) is provided on the other end face of the drum main body (1).

9. A heat exchanger structure according to any one of claims 1-8, characterized in that, An oval heat exchanger installation position (22) is provided on the inner end face of the drum main body (1), and a rectangular heat exchanger installation position (32) is provided on the inner wall of the drum main body (1).

Images