A heat exchanger which is easily cleaned inside

Abstract

The utility model discloses a convenient to inside cleaning's cold -heat exchanger, include: casing, both sides of casing are all fixedly installed and have end cover, the middle end fixedly connected with heat exchange tube bundle of casing, both ends of casing top are all fixedly connected with the cleaning frame, the top fixed mounting of cleaning frame has the sealing top board, the middle end fixedly connected with the discharge frame of casing bottom, the bottom fixed mounting of discharge frame has the sealing bottom board. The utility model discloses through the setting of sealing top board, cleaning frame, discharge frame and sealing bottom board, the personnel of convenient to the shell inside of this cold -heat exchanger carries out the cleaning operation, and through the setting of crawling ladder, fixed block, pin rod, pressure spring, support sliding block, support cross bar and pin hole, so that personnel can carry out the climbing operation during cleaning, and personnel can adjust the position of crawling ladder in front of two cleaning frames according to the sequence of cleaning operation.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, specifically a heat exchanger that is easy to clean internally. Background Technology

[0002] In many fields such as industrial production and wastewater treatment, heat exchangers are key equipment for achieving effective heat transfer. A typical heat exchanger generally consists of a tube bundle, a shell, inlet and outlet pipes, and a support structure. Its working principle is based on the temperature difference between the fluid in the tube bundle and the fluid in the shell to achieve heat transfer and meet the temperature requirements of different process stages.

[0003] In wastewater treatment, especially before high-temperature concentrated wastewater enters the anaerobic system, a heat exchanger is needed to cool the wastewater to ensure the stable operation of the subsequent anaerobic system. However, since the concentrated wastewater usually contains silt and impurities, these impurities gradually accumulate inside the heat exchanger during long-term use, seriously affecting the efficiency of subsequent heat exchange operations. Furthermore, since the heat exchanger shell is often a one-piece structure, it is difficult for personnel to clean the silt and impurities inside the shell. Often, it is necessary to cut open the shell in the corresponding area and then re-weld the cut area after cleaning. This process is not only complicated and time-consuming, but the cutting and welding operations may also affect the structural strength and sealing of the shell, increasing the safety hazards and maintenance costs of the equipment. Utility Model Content

[0004] The purpose of this utility model is to provide a heat exchanger that is easy to clean internally, which has the advantages of facilitating regular internal cleaning by personnel, being convenient and quick to operate, and greatly reducing the difficulty of personnel maintenance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat exchanger that facilitates internal cleaning, comprising:

[0006] The shell has end caps fixedly installed on both sides, a heat exchange tube bundle fixedly connected to the middle of the shell, a cleaning frame fixedly connected to both ends of the top of the shell, a sealing top plate fixedly installed on the top of the cleaning frame, a slag discharge frame fixedly connected to the middle of the bottom of the shell, and a sealing bottom plate fixedly installed on the bottom of the slag discharge frame.

[0007] A ladder is located at the front of the housing. Two support sliders are fixedly connected to the lower end of the back of the ladder. A support crossbar is slidably connected between the middle ends of the two support sliders. A pin hole is opened on the front surface of the support crossbar. Fixing blocks are fixedly connected to the lower ends of both sides of the ladder. A pin is slidably connected between the middle end of the fixing block and the surface of the pin hole. A compression spring is fixedly connected between the middle end of the pin and the back of the fixing block.

[0008] As a preferred embodiment, both ends of the bottom of the outer surface of the housing are fixedly connected to support frames, and a fixing plate is fixedly connected between the upper end of the support frame and the surface of the support crossbar.

[0009] As a preferred embodiment, a guide slider is fixedly connected to the upper end of the back of the ladder. There are two guide sliders, and a guide rod is slidably connected between the middle ends of the two guide sliders. The back of the guide rod is fixedly connected to the upper end of the housing.

[0010] As a preferred embodiment, a first rubber sealing gasket is fixedly installed on one side of the two end caps that are close to each other, and the surface of the first rubber sealing gasket is in contact with the surface of the housing.

[0011] As a preferred embodiment, a second rubber sealing gasket is fixedly installed on the top of the cleaning frame, and the top of the second rubber sealing gasket contacts the bottom of the sealing top plate.

[0012] As a preferred embodiment, a third rubber sealing gasket is fixedly installed at the bottom of the slag discharge frame, and the bottom of the third rubber sealing gasket contacts the top of the sealing base plate.

[0013] As a preferred embodiment, a pull ring is fixedly connected to the front surface of the pin.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This utility model, through the setting of a sealed top plate, a cleaning frame, a slag discharge frame, and a sealed bottom plate, facilitates personnel to clean the inside of the heat exchanger shell. Furthermore, the inclusion of a ladder, fixing blocks, pins, pressure springs, support sliders, support crossbars, and pin holes allows personnel to perform operations at height during cleaning. The ladder's position can be easily adjusted in front of the two sets of cleaning frames according to the cleaning sequence, further simplifying the cleaning operation. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is a schematic diagram of the front cross-sectional structure of the housing of this utility model;

[0018] Figure 3 This is a schematic diagram of the back structure of the ladder of this utility model;

[0019] Figure 4 This is a top view of a partial cross-sectional view of the supporting crossbar of this utility model.

[0020] In the diagram: 1. Shell; 2. End cap; 3. Cleaning frame; 4. Sealing top plate; 5. Guide slide rod; 6. Ladder; 7. Pin hole; 8. Support crossbar; 9. Fixing plate; 10. Support frame; 11. First rubber sealing gasket; 12. Second rubber sealing gasket; 13. Heat exchange tube bundle; 14. Slag discharge frame; 15. Sealing bottom plate; 16. Third rubber sealing gasket; 17. Guide slider; 18. Support slider; 19. Pin rod; 20. Compression spring; 21. Fixing block; 22. Pull ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0023] The components of this application, such as the shell 1, end cap 2, cleaning frame 3, sealing top plate 4, guide slide rod 5, ladder 6, pin hole 7, support crossbar 8, fixing plate 9, support frame 10, first rubber sealing gasket 11, second rubber sealing gasket 12, heat exchange tube bundle 13, slag discharge frame 14, sealing bottom plate 15, third rubber sealing gasket 16, guide slider 17, support slider 18, pin rod 19, pressure spring 20, fixing block 21, and pull ring 22, are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0024] Example 1:

[0025] Please see Figures 1-4 As shown, this utility model provides a heat exchanger that facilitates internal cleaning, comprising:

[0026] Shell 1, end caps 2 are fixedly installed on both sides of shell 1, heat exchange tube bundle 13 is fixedly connected to the middle of shell 1, cleaning frames 3 are fixedly connected to both ends of the top of shell 1, sealing top plate 4 is fixedly installed on the top of cleaning frame 3, slag discharge frame 14 is fixedly connected to the middle of the bottom of shell 1, and sealing bottom plate 15 is fixedly installed on the bottom of slag discharge frame 14.

[0027] A ladder 6 is located at the front of the housing 1. A support slider 18 is fixedly connected to the lower end of the back of the ladder 6. There are two support sliders 18. A support crossbar 8 is slidably connected between the middle ends of the two support sliders 18. A pin hole 7 is opened on the front surface of the support crossbar 8. Fixing blocks 21 are fixedly connected to the lower ends of both sides of the ladder 6. A pin 19 is slidably connected between the middle end of the fixing block 21 and the surface of the pin hole 7. A pressure spring 20 is fixedly connected between the middle end of the pin 19 and the back of the fixing block 21.

[0028] In this technical solution, when personnel need to clean the interior of the shell 1, they can use a wrench to disassemble the bolts connecting the sealing top plate 4 to the cleaning frame 3 and the slag discharge frame 14 to the sealing bottom plate 15. This allows personnel to remove the sealing top plate 4 and the sealing bottom plate 15. Then, personnel can use a high-pressure water gun to rinse the interior of the shell 1 through the cleaning frames 3 at both ends, causing the mud, sand, impurities, and other contaminants inside the shell 1 to detach and be discharged with the slag discharge frame 14. This greatly facilitates the cleaning of the interior of the shell 1. Furthermore, the ladder 6 allows personnel to climb during the cleaning process. This design further facilitates the cleaning process for personnel. When personnel need to adjust the position of the ladder 6, they can move it by pulling the pin 19 to compress the pressure spring 20 until the pin 19 can disengage from the surface of the pin hole 7. Then, personnel can push the ladder 6 and the support slider 18 along the surface of the support crossbar 8. When the ladder 6 is adjusted to the front of a certain cleaning frame 3, by stopping pulling the pin 19 and under the tension of the pressure spring 20, the pin 19 can be inserted into the pin hole 7, thus preventing the ladder 6 from shifting during subsequent personnel climbing operations.

[0029] It should be noted that the compression spring 20 is in a compressed state in the initial state, and can generate a large force on the pin 19, so that the pin 19 can be inserted into the pin hole 7.

[0030] Example 2:

[0031] Based on Embodiment 1, this utility model is as follows: Figures 1-4As shown, support frames 10 are fixedly connected to both ends of the bottom of the outer surface of the shell 1. A fixing plate 9 is fixedly connected between the upper end of the support frame 10 and the surface of the support crossbar 8. A guide slider 17 is fixedly connected to the upper end of the back of the ladder 6. There are two guide sliders 17. A guide rod 5 is slidably connected between the middle ends of the two guide sliders 17. The back of the guide rod 5 is fixedly connected to the upper end of the shell 1. A first rubber sealing gasket 11 is fixedly installed on the side of the two end caps 2 that are close to each other. The surface of the first rubber sealing gasket 11 is in contact with the surface of the shell 1. A second rubber sealing gasket 12 is fixedly installed on the top of the cleaning frame 3. The top of the second rubber sealing gasket 12 is in contact with the bottom of the sealing top plate 4. A third rubber sealing gasket 16 is fixedly installed on the bottom of the slag discharge frame 14. The bottom of the third rubber sealing gasket 16 is in contact with the top of the sealing bottom plate 15. A pull ring 22 is fixedly connected to the front surface of the pin 19.

[0032] In this technical solution, the support frame 10 and the fixing plate 9 are used to support the housing 1 and the support crossbar 8. The guide slider 17 and the guide rod 5 are used to support and guide the upper end of the ladder 6, preventing the ladder 6 from tilting due to force. The first rubber sealing gasket 11, the second rubber sealing gasket 12 and the third rubber sealing gasket 16 are used to ensure the sealing between the end cover 2 and the housing 1, the cleaning frame 3 and the sealing top plate 4, and the slag discharge frame 14 and the sealing bottom plate 15. The pull ring 22 is used to facilitate the pulling of the pin 19 by personnel.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A heat exchanger that is easy to clean internally, characterized in that, include: The shell (1) has end caps (2) fixedly installed on both sides, a heat exchange tube bundle (13) fixedly connected to the middle of the shell (1), a cleaning frame (3) fixedly connected to both ends of the top of the shell (1), a sealing top plate (4) fixedly installed on the top of the cleaning frame (3), a slag discharge frame (14) fixedly connected to the middle of the bottom of the shell (1), and a sealing bottom plate (15) fixedly installed on the bottom of the slag discharge frame (14). A ladder (6) is set in front of the housing (1). A support slider (18) is fixedly connected to the lower end of the back of the ladder (6). There are two support sliders (18). A support crossbar (8) is slidably connected between the middle ends of the two support sliders (18). A pin hole (7) is opened on the front surface of the support crossbar (8). A fixing block (21) is fixedly connected to the lower ends of both sides of the ladder (6). A pin (19) is slidably connected between the middle end of the fixing block (21) and the surface of the pin hole (7). A pressure spring (20) is fixedly connected between the middle end of the pin (19) and the back of the fixing block (21).

2. A heat exchanger for easy internal cleaning according to claim 1, characterized in that: Both ends of the bottom of the outer surface of the housing (1) are fixedly connected to support frames (10), and a fixing plate (9) is fixedly connected between the upper end of the support frame (10) and the surface of the support crossbar (8).

3. A heat exchanger for easy internal cleaning according to claim 1, characterized in that: The upper end of the back of the ladder (6) is fixedly connected to a guide slider (17). There are two guide sliders (17). A guide rod (5) is slidably connected between the middle ends of the two guide sliders (17). The back of the guide rod (5) is fixedly connected to the upper end of the shell (1).

4. A heat exchanger for easy internal cleaning according to claim 1, characterized in that: A first rubber sealing gasket (11) is fixedly installed on one side of the two end caps (2) that are close to each other, and the surface of the first rubber sealing gasket (11) is in contact with the surface of the housing (1).

5. A heat exchanger for easy internal cleaning according to claim 1, characterized in that: A second rubber sealing gasket (12) is fixedly installed on the top of the cleaning frame (3), and the top of the second rubber sealing gasket (12) contacts the bottom of the sealing top plate (4).

6. A heat exchanger for easy internal cleaning according to claim 1, characterized in that: A third rubber sealing gasket (16) is fixedly installed at the bottom of the slag discharge frame (14), and the bottom of the third rubber sealing gasket (16) contacts the top of the sealing base plate (15).

7. A heat exchanger for easy internal cleaning according to claim 1, characterized in that: A pull ring (22) is fixedly connected to the front surface of the pin (19).

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