Device suitable for simultaneous purging of multiple heat exchange tubes

Abstract

This utility model discloses a device suitable for simultaneous purging of multiple heat exchange tubes, including a platform. A movable frame is movably connected to the top of the platform. A connecting seat is movably connected to the inner side of the movable frame. A sliding block is movably connected to the inner side of the connecting seat. A first motor is fixedly connected to the front of the sliding block. A threaded rod is fixedly sleeved on the other end of the output shaft of the first motor. The other end of the threaded rod passes through the sliding block and extends into the interior of the sliding block, and is threadedly sleeved with a movable plate. The bottom of the movable plate is movably connected to the interior of the top of the sliding block. A hollow rod is fixedly connected to the left side of the movable plate, and a rotating plate is movably connected to the interior of the hollow rod. The quick switching function of the purging head and the two independently moving sets of purging heads in this application enable the device to simultaneously purge multiple heat exchange tubes and adapt to rapid purging operations of different types of heat exchange tubes.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange tube technology, and more specifically, to a device suitable for simultaneous purging of multiple heat exchange tubes. Background Technology

[0002] Heat exchange tubes are the core components of heat exchangers, used to transfer heat between two fluids. They are usually made of metallic materials (such as copper, stainless steel, or titanium) and have excellent thermal conductivity and corrosion resistance. Heat exchange tubes conduct heat from high-temperature fluids to low-temperature fluids through the tube walls. They are widely used in petrochemical, power, and refrigeration industries. Their structures are diverse, including straight tubes, U-shaped tubes, and spiral tubes, which can be selected according to different operating conditions. To improve heat transfer efficiency, the surface of heat exchange tubes may be designed with fins or corrugations to enhance heat transfer. During operation, factors such as fluid pressure, temperature, and corrosiveness must be considered to ensure the long-term stable operation of the heat exchange tubes.

[0003] Patent application CN214470340U discloses a novel tube heat exchanger tube purging tool that addresses the problem that "existing heat exchangers often have very small leak points when leaks occur, making it difficult to pinpoint which heat exchanger tube is leaking." By sequentially purging and drying the inside of the heat exchanger tubes, the tool prepares the area for the next step of injecting pressurized condensate into the shell side to check for leaks, thus reducing the difficulty of inspection for staff.

[0004] However, the "heat exchanger tube purging tool" in the above-mentioned prior art only performs purging operations through a fixed single row of purging tubes. In contrast, existing shell-and-tube heat exchangers and plate heat exchangers have a large number of multi-channel heat exchanger tube groups inside, and the arrangement of heat exchanger tubes inside different types of heat exchangers is different. Purging in a fixed direction can easily cause some purging tubes to fail to find the corresponding heat exchanger tubes, thus affecting the purging efficiency. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model provides a device suitable for simultaneous purging of multiple heat exchange tubes, which has the advantage of wide applicability.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A device suitable for simultaneous purging of multiple heat exchange tubes includes a platform. A movable frame is movably connected to the top of the platform. A connecting seat is movably connected to the inner side of the movable frame. A sliding block is movably connected to the inner side of the connecting seat. A first motor is fixedly connected to the front of the sliding block. A threaded rod is fixedly sleeved at the other end of the output shaft of the first motor. The other end of the threaded rod passes through the sliding block and extends into the interior of the sliding block, and is threadedly sleeved with a movable plate. The bottom of the movable plate is movably connected to the interior of the top of the sliding block. A hollow rod is fixedly connected to the left side of the movable plate. A rotating plate is movably connected to the interior of the hollow rod. A fixed seat is fixedly connected to the right side of the sliding block. A connecting pipe is movably sleeved on the outer surface of the fixed seat. A sealing ring is fixedly connected to the other end of the fixed seat. The outer surface of the sealing ring is movably connected to the inner wall of the connecting pipe. The outer surface of the connecting pipe is fixedly sleeved to the interior of the rotating plate. A distributor is fixedly connected to the other end of the connecting pipe. A purging head is fixedly connected to the inner side of the distributor.

[0008] Furthermore, an installation hose is fixedly sleeved inside the bottom of the connecting pipe, a second motor is fixedly connected to the top of the movable frame, and a No. 2 threaded rod is fixedly sleeved at the other end of the output shaft of the second motor. The other end of the No. 2 threaded rod passes through the movable frame and extends into the interior of the movable frame and is sleeved with the internal thread of the connecting seat.

[0009] Furthermore, a vertical rod is fixedly connected inside the movable frame, and a rectangular plate is movably sleeved on the outer surface of the vertical rod. A drive motor is fixedly connected to the front of the rectangular plate, and a No. 3 threaded rod is fixedly sleeved on the other end of the output shaft of the drive motor. The other end of the No. 3 threaded rod passes through the rectangular plate and the connecting seat in sequence and extends into the interior of the connecting seat and is sleeved with the internal thread of the sliding block.

[0010] Furthermore, a limiting rod located above and below the No. 3 threaded rod is fixedly connected to the back of the rectangular plate. The other end of the limiting rod is fixedly connected to the outer surface of the connecting seat, and the outer surface of the limiting rod is movably sleeved with the inside of the sliding block.

[0011] Furthermore, a fixing frame is fixedly connected to both the left and right sides of the bottom of the platform. A power motor is fixedly connected to the bottom end of the fixing frame. A rotating shaft is fixedly sleeved at the other end of the output shaft of the power motor. A rotating rod is fixedly sleeved at the other end of the rotating shaft.

[0012] Furthermore, a sleeve rod is movably connected to the outer surface of the rotating rod, a connecting plate is fixedly connected to the outer side of the sleeve rod, the other end of the connecting plate is fixedly connected to the bottom of the movable frame, and the outer surface of the connecting plate is movably connected to the interior of the table.

[0013] Furthermore, a rectangular rod is fixedly connected inside the platform, and the outer surface of the rectangular rod is movably sleeved with the inside of the connecting plate. The outer surface of the rectangular rod is smooth.

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

[0015] This invention, by setting multiple purging heads, can simultaneously purify multiple heat exchange tubes, thereby improving the purging efficiency of the purging heads. Through the rotating plate and fixed base, the horizontal and vertical distribution of the purging heads can be quickly switched to adapt to the purging needs of different types of heat exchange tubes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the front of the present invention;

[0018] Figure 3 This is a schematic diagram of the top structure of the present invention;

[0019] Figure 4 This is a cross-sectional structural diagram of the fixing base of this utility model;

[0020] Figure 5 This is a cross-sectional view of the rotating rod of this utility model.

[0021] In the diagram: 1. Tabletop; 2. Movable frame; 3. Sliding block; 4. First motor; 5. Threaded rod No. 1; 6. Movable plate; 7. Hollow rod; 8. Rotating plate; 9. Fixed seat; 10. Connecting pipe; 11. Diverter; 12. Blowing head; 13. Installation hose; 14. Second motor; 15. Threaded rod No. 2; 16. Connecting seat; 17. Drive motor; 18. Threaded rod No. 3; 19. Fixed frame; 20. Power motor; 21. Rotating shaft; 22. Rotating rod; 23. Sleeve rod; 24. Connecting plate; 25. Limiting rod; 26. Vertical rod; 27. Rectangular plate; 28. Sealing ring; 29. ​​Rectangular rod. Detailed Implementation

[0022] 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.

[0023] like Figures 1 to 5As shown, this utility model provides a device suitable for simultaneous purging of multiple heat exchange tubes, including a platform 1, a movable frame 2 movably connected to the top of the platform 1, a connecting seat 16 movably connected to the inner side of the movable frame 2, a sliding block 3 movably connected to the inner side of the connecting seat 16, a first motor 4 fixedly connected to the front of the sliding block 3, a first threaded rod 5 fixedly sleeved at the other end of the output shaft of the first motor 4, the other end of the first threaded rod 5 passing through the sliding block 3 and extending into the interior of the sliding block 3 and threadedly sleeved with a movable plate 6, the bottom of the movable plate 6 movably connected to the interior of the top of the sliding block 3, a hollow rod 7 fixedly connected to the left side of the movable plate 6, a rotating plate 8 movably connected to the interior of the hollow rod 7, a fixed seat 9 fixedly connected to the right side of the sliding block 3, a connecting pipe 10 movably sleeved on the outer surface of the fixed seat 9, and the fixed seat 9... The other end is fixedly connected to a sealing ring 28. The outer surface of the sealing ring 28 is movably connected to the inner wall of the connecting pipe 10. The outer surface of the connecting pipe 10 is fixedly sleeved with the inside of the rotating plate 8. The other end of the connecting pipe 10 is fixedly connected to a diverter 11. Multiple blow heads 12 are fixedly connected to the inner side of the diverter 11. When the first motor 4 starts running, it will cause the first threaded rod 5 to rotate, thereby causing the movable plate 6 to drive the hollow rod 7 to move horizontally backward under the limiting action of the sliding block 3. This causes the hollow rod 7 to squeeze and push the rotating plate 8, causing the rotating plate 8 to drive the connecting pipe 10 to rotate under the limiting action of the fixed seat 9. This causes the diverter 11 to drive the blow heads 12 to rotate synchronously. When the movable plate 6 moves to the rearmost position, it will cause the diverter 11 and the blow heads 12 to rotate ninety degrees.

[0024] The bottom of the connecting pipe 10 is fixedly fitted with an installation hose 13. The top of the movable frame 2 is fixedly connected with a second motor 14. The other end of the output shaft of the second motor 14 is fixedly fitted with a second threaded rod 15. The other end of the second threaded rod 15 passes through the movable frame 2 and extends into the interior of the movable frame 2 and is threadedly fitted with the internal thread of the connecting seat 16. The other end of the installation hose 13 is connected to an external high-pressure air pump. When the air pump is turned on, the high-pressure gas is discharged into the interior of the distributor 11 through the installation hose 13 and the connecting pipe 10, and finally sprayed out through the purge head 12.

[0025] The movable frame 2 has a vertical rod 26 fixedly connected inside, and a rectangular plate 27 is movably sleeved on the outer surface of the vertical rod 26. A drive motor 17 is fixedly connected to the front of the rectangular plate 27, and a No. 3 threaded rod 18 is fixedly sleeved on the other end of the output shaft of the drive motor 17. The other end of the No. 3 threaded rod 18 passes through the rectangular plate 27 and the connecting seat 16 in sequence and extends into the interior of the connecting seat 16 and is threadedly sleeved with the internal thread of the sliding block 3. When the drive motor 17 starts running, it will cause the No. 3 threaded rod 18 to rotate, thereby causing the sliding block 3 to move back and forth.

[0026] Among them, the back of the rectangular plate 27 is fixedly connected to a limiting rod 25 located above and below the No. 3 threaded rod 18. The other end of the limiting rod 25 is fixedly connected to the outer surface of the connecting seat 16. The outer surface of the limiting rod 25 is movably sleeved with the inside of the sliding block 3. Due to the limiting effect of the limiting rod 25, when the No. 3 threaded rod 18 rotates, the sliding block 3 can only move horizontally back and forth.

[0027] Among them, the bottom left and right sides of the platform 1 are fixedly connected to the fixing frame 19, the bottom end of the fixing frame 19 is fixedly connected to the power motor 20, the other end of the output shaft of the power motor 20 is fixedly sleeved with the rotating shaft 21, and the other end of the rotating shaft 21 is fixedly sleeved with the rotating rod 22; when the power motor 20 starts to run, the rotating shaft 21 will drive the rotating rod 22 to rotate synchronously.

[0028] The outer surface of the rotating rod 22 is movably connected to the sleeve rod 23, and the outer side of the sleeve rod 23 is fixedly connected to the connecting plate 24. The other end of the connecting plate 24 is fixedly connected to the bottom of the movable frame 2, and the outer surface of the connecting plate 24 is movably connected to the inside of the table 1. When the rotating rod 22 rotates, the sleeve rod 23 will squeeze and push the connecting plate 24, thereby causing the connecting plate 24 to drive the movable frame 2 to move horizontally left and right inside the table 1.

[0029] The tabletop 1 is internally fixedly connected to a rectangular rod 29. The outer surface of the rectangular rod 29 is movably connected to the inside of the connecting plate 24. The outer surface of the rectangular rod 29 is smooth. This design makes the movement of the connecting plate 24 on the rectangular rod 29 smoother, while reducing the friction between the connecting plate 24 and the rectangular rod 29 and improving the service life of the connecting plate 24 and the rectangular rod 29.

[0030] Working principle and usage process of this utility model:

[0031] Place the heat exchanger to be purged on the top of the platform 1. Then, by starting the second motor 14 and the drive motor 17, align the purging heads 12 on the left and right sides with the different heat exchange tubes. At this time, turn on the high-pressure air pump connected to the other end of the installation hose 13. The high-pressure gas will then be discharged into the interior of the distributor 11 through the installation hose 13 and the connecting pipe 10. After being divided by the distributor 11, the gas will be sprayed out through the purging head 12, and the heat exchanger purging operation will begin. When the heat exchange tubes inside the heat exchanger are arranged in a pattern of more longitudinal rows and fewer transverse rows, start the first motor 4 to make the first threaded rod... 5. Rotation occurs, causing the movable plate 6 to drive the hollow rod 7 to move horizontally backward under the limiting action of the sliding block 3. This causes the hollow rod 7 to squeeze and push the rotating plate 8, causing the rotating plate 8 to drive the connecting pipe 10 to rotate under the limiting action of the fixed seat 9. This, in turn, causes the distributor 11 to drive the purging head 12 to rotate synchronously. When the movable plate 6 moves to the rearmost position, it will cause the distributor 11 and the purging head 12 to rotate 90 degrees, ultimately switching the purging head 12 from a horizontal state to a vertical state. This facilitates the operator to perform purging operations for different heat exchange tube arrangements, improving the applicability of the device.

[0032] When the heat exchange tubes to be purged are of different types, their sizes will also vary greatly. At this time, by starting the power motor 20, the rotating shaft 21 drives the rotating rod 22 to rotate, and the rotating rod 22 squeezes and pushes the sleeve rod 23. The sleeve rod 23 drives the connecting plate 24 and the movable frame 2 to move horizontally in opposite directions under the limiting action of the rectangular rod 29. Finally, the function of adjusting the distance between the left and right sets of purging heads 12 is realized, which makes it convenient for the device to adapt to different sizes of different types of heat exchangers. At the same time, the adjustment operation is simple and convenient and does not require any tools.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device suitable for simultaneous purging of multiple heat exchange tubes, comprising a platform (1), characterized in that: The top of the tabletop (1) is movably connected to a movable frame (2), the inner side of the movable frame (2) is movably connected to a connecting seat (16), the inner side of the connecting seat (16) is movably connected to a sliding block (3), the front of the sliding block (3) is fixedly connected to a first motor (4), the other end of the output shaft of the first motor (4) is fixedly sleeved with a first threaded rod (5), the other end of the first threaded rod (5) passes through the sliding block (3) and extends into the interior of the sliding block (3) and is threadedly sleeved with a movable plate (6), the bottom of the movable plate (6) is movably connected to the interior of the top of the sliding block (3); A hollow rod (7) is fixedly connected to the left side of the movable plate (6), and a rotating plate (8) is movably connected inside the hollow rod (7). A fixed seat (9) is fixedly connected to the right side of the sliding block (3). A connecting pipe (10) is movably sleeved on the outer surface of the fixed seat (9). A sealing ring (28) is fixedly connected to the other end of the fixed seat (9). The outer surface of the sealing ring (28) is movably connected to the inner wall of the connecting pipe (10). The outer surface of the connecting pipe (10) is fixedly sleeved to the inside of the rotating plate (8). A diverter (11) is fixedly connected to the other end of the connecting pipe (10). Multiple purge heads (12) are fixedly connected to the inner side of the diverter (11).

2. The device for simultaneous purging of multiple heat exchange tubes according to claim 1, characterized in that: The bottom of the connecting pipe (10) is fixedly fitted with an installation hose (13), and the top of the movable frame (2) is fixedly connected with a second motor (14). The other end of the output shaft of the second motor (14) is fixedly fitted with a second threaded rod (15). The other end of the second threaded rod (15) passes through the movable frame (2) and extends into the interior of the movable frame (2) and is threadedly fitted with the internal thread of the connecting seat (16).

3. The device for simultaneous purging of multiple heat exchange tubes according to claim 1, characterized in that: The movable frame (2) is fixedly connected to a vertical rod (26). A rectangular plate (27) is movably sleeved on the outer surface of the vertical rod (26). A drive motor (17) is fixedly connected to the front of the rectangular plate (27). A No. 3 threaded rod (18) is fixedly sleeved on the other end of the output shaft of the drive motor (17). The other end of the No. 3 threaded rod (18) passes through the rectangular plate (27) and the connecting seat (16) in sequence and extends into the interior of the connecting seat (16) and is threadedly sleeved with the sliding block (3).

4. The device for simultaneous purging of multiple heat exchange tubes according to claim 3, characterized in that: The back of the rectangular plate (27) is fixedly connected to a limiting rod (25) located above and below the No. 3 threaded rod (18). The other end of the limiting rod (25) is fixedly connected to the outer surface of the connecting seat (16). The outer surface of the limiting rod (25) is movably sleeved with the inside of the sliding block (3).

5. The device for simultaneous purging of multiple heat exchange tubes according to claim 1, characterized in that: The bottom left and right sides of the platform (1) are fixedly connected to a fixed frame (19). The bottom end of the fixed frame (19) is fixedly connected to a power motor (20). The other end of the output shaft of the power motor (20) is fixedly sleeved with a rotating shaft (21). The other end of the rotating shaft (21) is fixedly sleeved with a rotating rod (22).

6. The device for simultaneous purging of multiple heat exchange tubes according to claim 5, characterized in that: The outer surface of the rotating rod (22) is movably connected to a sleeve rod (23), and the outer side of the sleeve rod (23) is fixedly connected to a connecting plate (24). The other end of the connecting plate (24) is fixedly connected to the bottom of the movable frame (2), and the outer surface of the connecting plate (24) is movably connected to the inside of the table surface (1).

7. The device for simultaneous purging of multiple heat exchange tubes according to claim 1, characterized in that: A rectangular rod (29) is fixedly connected inside the tabletop (1). The outer surface of the rectangular rod (29) is movably connected to the inside of the connecting plate (24). The outer surface of the rectangular rod (29) is smooth.

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