Device and method for detecting production quality of plate-fin heat exchanger

Abstract

The invention provides a plate-fin heat exchanger production quality detection device and method, and relates to the technical field of heat exchanger production. The plate-fin heat exchanger production quality detection device comprises a workbench, four L-shaped limiting plates are fixedly connected to the upper surface of the workbench, and a lifting insertion rod is inserted in the center of the surface of the workbench in a penetrating mode. A first water suction pump is started, the first water suction pump sucks water in a water storage tank into a mounting frame, the water is accumulated on a composite plate, then a third servo motor is started, an output shaft of the third servo motor drives a second rotating gear to rotate, a second connecting rack drives a connecting frame to descend, and the connecting frame drives a sealing sliding plate to descend; the pressure inside the mounting frame is increased, whether water leaks out of the bottom of the composite board is observed, water can permeate into small holes in a pressurizing mode, whether tiny holes exist in the composite board or not is detected, manual naked eye detection is not needed, and the detection effect and accuracy are improved.

Description

Technical Field

[0001] The invention relates to the technical field of heat exchanger production, and in particular to a plate-fin heat exchanger production quality detection device and method. Background Art

[0002] The composite plate is one of the most important parts in the plate-fin heat exchanger. It plays a fatal and decisive role in the most critical technology of the plate-fin heat exchanger manufacturing process - aluminum alloy brazing technology. As the name suggests, the composite plate is a plate made of two alloy materials rolled together. In addition to the geometric dimensions and flatness of the composite plate, its surface needs to be strictly inspected.

[0003] Since the composite plates used for brazing are generally thin, it is necessary to check whether there are foreign objects pressed into the surface of the composite plates, tiny holes, mechanical bumps and scratches, etc., especially for tiny holes, which require strict inspection. Traditional inspection methods are often simply observed with the naked eye, but many tiny holes are difficult to observe with the naked eye, which will lead to poor inspection results. There are also methods to observe whether the composite plates have water seepage to determine whether there are small holes. However, many small holes have very small diameters, and water cannot penetrate under normal circumstances, which will also lead to inaccurate inspection data. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides a plate-fin heat exchanger production quality detection device and method, which solves the defects and deficiencies in the prior art.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a plate-fin heat exchanger production quality inspection device, including a workbench, the upper surface of the workbench is fixedly connected to four L-shaped limit plates, a lifting rod is inserted through the center of the surface of the workbench, the top of the lifting rod is fixedly connected to a lifting platform plate, and the four corners of the upper surface of the lifting platform plate are fixedly connected to raised top rods, the lower surface of the workbench is installed with a first power component for driving the lifting rod to lift, a mounting frame is arranged above the lifting platform plate, the lower surface of the mounting frame is fixedly connected to a first rubber frame, and the lower surface of the first rubber frame A second rubber frame is fixedly connected, and two sets of second power components for driving the mounting frame to rise and fall are arranged on the upper surface of the workbench. A sealing sliding plate is sealingly and slidingly connected to the inner wall of the mounting frame, and a connecting frame is fixedly connected to the top of the sealing sliding plate. A third power component for driving the connecting frame to rise and fall is installed on the side wall of the mounting frame. A water tank is fixedly connected to the upper surface of the workbench, and a first pumping component and a second pumping component are installed on the water tank. Connecting and mounting cylinders are fixedly connected on all four sides of the mounting frame, and a clamping plate is fixedly connected to the piston end of the connecting and mounting cylinder, and the clamping plate is located at the position of the first rubber frame.

[0008] Preferably, the first power assembly includes a first servo motor fixedly connected to the lower surface of the workbench, the output shaft of the first servo motor is fixedly connected to a first rotating gear, the bottom end of the lifting rod is fixedly connected to a first connecting rack, and the first rotating gear is meshingly connected to the first connecting rack.

[0009] Preferably, the second power assembly includes a second servo motor fixedly connected to the upper surface of the workbench, the output shaft of the second servo motor is fixedly connected to a threaded rod, the outer surface of the threaded rod is threadedly connected to a lifting connection block, and the lifting connection block is fixedly connected to the side wall of the mounting frame.

[0010] Preferably, the third power assembly includes a third servo motor fixedly connected to the side wall of the mounting frame, the output shaft of the third servo motor is fixedly connected to the second rotating gear, the side wall of the connecting frame is fixedly connected to the second connecting rack, and the second rotating gear is meshingly connected to the second connecting rack.

[0011] Preferably, a support vertical plate is fixedly connected to the upper surface of the mounting frame, a sliding groove is provided on the side wall of the support vertical plate, a sliding block is fixedly connected to the side wall of the connecting frame, and the sliding block is slidably connected inside the sliding groove.

[0012] Preferably, the first pumping assembly includes a first water pump fixedly connected to the top of the water tank, the inlet of the first water pump extends to the interior of the water tank, the outlet of the first water pump is fixedly connected to a first connecting pipe, the end of the first connecting pipe is fixedly connected to a first hose, the end of the first hose is fixedly connected to a second connecting pipe, the end of the second connecting pipe passes through the top of the sealing sliding plate and is fixedly connected thereto, and the second connecting pipe is provided with a first valve.

[0013] Preferably, the second water pumping assembly includes a second water pump fixedly connected to the top of the water tank, the outlet of the second water pump extends to the interior of the water tank, the inlet of the second water pump is fixedly connected to a third connecting pipe, the end of the third connecting pipe is fixedly connected to a second hose, the end of the second hose is fixedly connected to a fourth connecting pipe, and the fourth connecting pipe is provided with a second valve.

[0014] A method for detecting a production quality detection device for a plate-fin heat exchanger, the method comprising the following steps:

[0015] S1. The composite board to be inspected is embedded inside the four L-shaped limit plates to position the composite board, and then the first servo motor is started. The output shaft of the first servo motor rotates with the first rotating gear, so that the first connecting rack and the lifting rod rise, so that the lifting platform plate is higher than the composite board;

[0016] S2, start the second servo motor, the output shaft of the second servo motor rotates with the threaded rod, so that the lifting connection block and the installation frame are lowered, so that the first rubber frame is covered on the outside of the composite plate, and the first rubber frame is in sealing contact with the composite plate, and then the connecting and installing cylinder is started, and the piston end of the connecting and installing cylinder moves with the clamping plate to the position of the first rubber frame, so that the four clamping plates clamp the first rubber frame to further ensure the sealing performance;

[0017] S3, then start the first pump, the first pump pumps the water in the water tank into the inside of the installation frame, the water accumulates on the composite board, and then start the third servo motor, the output shaft of the third servo motor rotates with the second rotating gear, so that the second connecting rack brings the connecting frame down, and the connecting frame brings the sealing sliding plate down, thereby increasing the pressure inside the installation frame, and observe whether there is water seepage at the bottom of the composite board;

[0018] S4. After the detection is completed, the sealing sliding plate rises, and the second water pump is started to pump out the water inside the installation frame.

[0019] (III) Beneficial effects

[0020] The present invention provides a plate-fin heat exchanger production quality inspection device and method, which has the following beneficial effects:

[0021] Start the first water pump, which pumps water from the water tank into the interior of the installation frame. The water accumulates on the composite board. Then start the third servo motor, and the output shaft of the third servo motor rotates with the second rotating gear, so that the second connecting rack brings the connecting frame down, and the connecting frame brings the sealing sliding plate down, thereby increasing the pressure inside the installation frame, and observing whether there is water seeping out from the bottom of the composite board. By applying pressure, water can penetrate into very small holes, thereby detecting whether there are tiny holes in the composite board, without the need for manual visual inspection, which improves the inspection effect and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional diagram of the workbench of the present invention;

[0023] Figure 2 It is a three-dimensional diagram of the overall structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the L-shaped limiting plate structure of the present invention;

[0025] Figure 4 It is a front view of the present invention;

[0026] Figure 5 This is a schematic diagram of the installation framework structure of the present invention;

[0027] Figure 6 For the present invention Figure 1 -A partial enlarged view.

[0028] Among them, 1. workbench; 2. L-shaped limit plate; 3. lifting rod; 4. lifting platform plate; 5. raised top rod; 6. first connecting rack; 7. first servo motor; 8. first rotating gear; 9. mounting frame; 10. first rubber frame; 11. second rubber frame; 12. lifting connecting block; 13. second servo motor; 14. threaded rod; 15. sealing sliding plate; 16. connecting frame; 17. supporting vertical plate; 18. second connecting rack; 19. third servo motor; 20. second rotating gear; 21. water tank; 22. first water pump; 23. first connecting pipe; 24. second connecting pipe; 25. second water pump; 26. third connecting pipe; 27. fourth connecting pipe; 28. connecting and installing cylinder; 29. ​​clamping plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example:

[0031] like Figure 1-6 As shown, an embodiment of the present invention provides a plate-fin heat exchanger production quality inspection device, including a workbench 1, four L-shaped limit plates 2 are fixedly connected to the upper surface of the workbench 1, a lifting rod 3 is inserted through the center of the surface of the workbench 1, the top of the lifting rod 3 is fixedly connected to a lifting platform plate 4, and the four corners of the upper surface of the lifting platform plate 4 are fixedly connected with raised top rods 5, and a first power component for driving the lifting rod 3 to lift is installed on the lower surface of the workbench 1. The first power component includes a first servo motor 7 fixedly connected to the lower surface of the workbench 1, and the output shaft of the first servo motor 7 is fixedly connected to a first rotating gear 8, and the bottom end of the lifting rod 3 is fixedly connected to a first connecting rack 6, and the first rotating gear 8 is meshed with the first connecting rack 6;

[0032] A mounting frame 9 is provided above the lifting platform plate 4, and a mounting cylinder 28 is fixedly connected to the four sides of the mounting frame 9, and a clamping plate 29 is fixedly connected to the piston end of the mounting cylinder 28, and the clamping plate 29 is located at the position of the first rubber frame 10. The lower surface of the mounting frame 9 is fixedly connected to the first rubber frame 10, and the lower surface of the first rubber frame 10 is fixedly connected to the second rubber frame 11. Two sets of second power components for driving the mounting frame 9 to lift are provided on the upper surface of the workbench 1. The second power component includes a second servo motor 13 fixedly connected to the upper surface of the workbench 1, and the output shaft of the second servo motor 13 is fixedly connected to a threaded rod 14, and the outer surface of the threaded rod 14 is threadedly connected to a lifting connection block 12, and the lifting connection block 12 is fixedly connected to the side wall of the mounting frame 9;

[0033] The inner wall of the mounting frame 9 is sealingly and slidingly connected with a sealing sliding plate 15, and the top of the sealing sliding plate 15 is fixedly connected with a connecting frame 16. A third power assembly for driving the connecting frame 16 to rise and fall is installed on the side wall of the mounting frame 9. The third power assembly includes a third servo motor 19 fixedly connected to the side wall of the mounting frame 9, and the output shaft of the third servo motor 19 is fixedly connected with a second rotating gear 20. A second connecting rack 18 is fixedly connected to the side wall of the connecting frame 16, and the second rotating gear 20 is meshedly connected with the second connecting rack 18. A supporting vertical plate 17 is fixedly connected to the upper surface of the mounting frame 9, and a sliding groove is opened on the side wall of the supporting vertical plate 17. A sliding block is fixedly connected to the side wall of the connecting frame 16, and the sliding block is slidably connected to the inside of the sliding groove;

[0034] A water tank 21 is fixedly connected to the upper surface of the workbench 1, and a first pumping assembly and a second pumping assembly are installed on the water tank 21. The first pumping assembly includes a first water pump 22 fixedly connected to the top of the water tank 21, the inlet of the first water pump 22 extends to the interior of the water tank 21, the outlet of the first water pump 22 is fixedly connected to a first connecting pipe 23, the end of the first connecting pipe 23 is fixedly connected to a first hose, the end of the first hose is fixedly connected to a second connecting pipe 24, the end of the second connecting pipe 24 passes through the top of the sealing sliding plate 15 and is fixedly connected thereto, and a first valve is provided on the second connecting pipe 24. The second pumping assembly includes a second water pump 25 fixedly connected to the top of the water tank 21, the outlet of the second water pump 25 extends to the interior of the water tank 21, the inlet of the second water pump 25 is fixedly connected to a third connecting pipe 26, the end of the third connecting pipe 26 is fixedly connected to a second hose, the end of the second hose is fixedly connected to a fourth connecting pipe 27, and a second valve is provided on the fourth connecting pipe 27.

[0035] A method for detecting a production quality detection device for a plate-fin heat exchanger, the method comprising the following steps:

[0036] S1. The composite board to be tested is embedded inside the four L-shaped limit plates 2 to position the composite board, and then the first servo motor 7 is started. The output shaft of the first servo motor 7 rotates with the first rotating gear 8, so that the first connecting rack 6 and the lifting rod 3 rise, so that the lifting platform plate 4 is higher than the composite board;

[0037] S2, start the second servo motor 13, the output shaft of the second servo motor 13 rotates with the threaded rod 14, so that the lifting connection block 12 and the installation frame 9 are lowered, so that the first rubber frame 10 covers the outside of the composite plate, and the first rubber frame 10 is in sealing contact with the composite plate, and then start the connecting and installing cylinder 28, the piston end of the connecting and installing cylinder 28 moves with the clamping plate 29 to the position of the first rubber frame 10, so that the four clamping plates 29 clamp the first rubber frame 10, further ensuring the sealing performance;

[0038] S3, then start the first pump 22, the first pump 22 pumps the water in the water tank 21 into the inside of the installation frame 9, the water accumulates on the composite board, and then start the third servo motor 19, the output shaft of the third servo motor 19 rotates with the second rotating gear 20, so that the second connecting rack 18 descends with the connecting frame 16, and the connecting frame 16 descends with the sealing sliding plate 15, thereby increasing the pressure inside the installation frame 9, and observe whether there is water seepage at the bottom of the composite board;

[0039] S3. After the detection is completed, the sealing sliding plate 15 rises, and the second water pump 25 is started to pump out the water inside the installation frame 9.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprising a reference structure" do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plate-fin heat exchanger production quality inspection device, comprising a workbench (1), characterized in that: The upper surface of the workbench (1) is fixedly connected with four L-shaped limit plates (2); a lifting rod (3) is inserted through the center of the surface of the workbench (1); the top of the lifting rod (3) is fixedly connected with a lifting platform plate (4); the four corners of the upper surface of the lifting platform plate (4) are fixedly connected with raised push rods (5); the lower surface of the workbench (1) is installed with a first power component for driving the lifting rod (3) to rise and fall; a mounting frame (9) is arranged above the lifting platform plate (4); the lower surface of the mounting frame (9) is fixedly connected with a first rubber frame (10); the lower surface of the first rubber frame (10) is fixedly connected with a second rubber frame (11); the upper surface of the workbench (1) is provided with two sets of driving components. A second power assembly for lifting the movable mounting frame (9); the inner wall of the mounting frame (9) is sealingly and slidably connected to a sealing sliding plate (15); the top of the sealing sliding plate (15) is fixedly connected to a connecting frame (16); a third power assembly for driving the connecting frame (16) to lift is installed on the side wall of the mounting frame (9); the upper surface of the workbench (1) is fixedly connected to a water storage tank (21); the water storage tank (21) is installed with a first pumping assembly and a second pumping assembly; the mounting frame (9) is fixedly connected to a connecting mounting cylinder (28) on all four sides; the piston end of the connecting mounting cylinder (28) is fixedly connected to a clamping plate (29); the clamping plate (29) is located at the position of the first rubber frame (10).

2. A plate-fin heat exchanger production quality inspection device according to claim 1, characterized in that: The first power assembly comprises a first servo motor (7) fixedly connected to the lower surface of the workbench (1); the output shaft of the first servo motor (7) is fixedly connected to a first rotating gear (8); the bottom end of the lifting rod (3) is fixedly connected to a first connecting rack (6); the first rotating gear (8) is meshingly connected to the first connecting rack (6).

3. The plate-fin heat exchanger production quality detection device according to claim 1, characterized in that: The second power assembly comprises a second servo motor (13) fixedly connected to the upper surface of the workbench (1); the output shaft of the second servo motor (13) is fixedly connected to a threaded rod (14); the outer surface of the threaded rod (14) is threadedly connected to a lifting connection block (12); and the lifting connection block (12) is fixedly connected to the side wall of the mounting frame (9).

4. The plate-fin heat exchanger production quality detection device according to claim 1, characterized in that: The third power assembly comprises a third servo motor (19) fixedly connected to the side wall of the mounting frame (9), the output shaft of the third servo motor (19) being fixedly connected to a second rotating gear (20), the side wall of the connecting frame (16) being fixedly connected to a second connecting rack (18), and the second rotating gear (20) being meshingly connected to the second connecting rack (18).

5. The plate-fin heat exchanger production quality inspection device according to claim 1, characterized in that: The upper surface of the mounting frame (9) is fixedly connected to a support upright plate (17), the side wall of the support upright plate (17) is provided with a sliding groove, and the side wall of the connecting frame (16) is fixedly connected to a sliding block, and the sliding block is slidably connected inside the sliding groove.

6. The plate-fin heat exchanger production quality inspection device according to claim 1, characterized in that: The first pumping assembly comprises a first pump (22) fixedly connected to the top of the water storage tank (21), the inlet of the first pump (22) extending into the interior of the water storage tank (21), the outlet of the first pump (22) fixedly connected to a first connecting pipe (23), the end of the first connecting pipe (23) fixedly connected to a first hose, the end of the first hose fixedly connected to a second connecting pipe (24), the end of the second connecting pipe (24) passing through the top of the sealing sliding plate (15) and fixedly connected thereto, and the second connecting pipe (24) is provided with a first valve.

7. The plate-fin heat exchanger production quality inspection device according to claim 1, characterized in that: The second pumping assembly comprises a second pump (25) fixedly connected to the top of the water storage tank (21); the outlet of the second pump (25) extends into the interior of the water storage tank (21); the inlet of the second pump (25) is fixedly connected to a third connecting pipe (26); the end of the third connecting pipe (26) is fixedly connected to a second hose; the end of the second hose is fixedly connected to a fourth connecting pipe (27); and the fourth connecting pipe (27) is provided with a second valve.

8. The detection method of the plate-fin heat exchanger production quality detection device according to any one of claims 1 to 7, characterized in that: The method comprises the following steps: S1. The composite board to be tested is embedded inside the four L-shaped limit plates (2) to position the composite board, and then the first servo motor (7) is started. The output shaft of the first servo motor (7) drives the first rotating gear (8) to rotate, so that the first connecting rack (6) drives the lifting rod (3) to rise, so that the lifting platform plate (4) is higher than the composite board; S2, starting the second servo motor (13), the output shaft of the second servo motor (13) drives the threaded rod (14) to rotate, so that the lifting connection block (12) drives the installation frame (9) to descend, so that the first rubber frame (10) covers the outer side of the composite plate, and the first rubber frame (10) is in sealing contact with the composite plate, and then starting the connecting and installing cylinder (28), the piston end of the connecting and installing cylinder (28) drives the clamping plate (29) to move toward the position of the first rubber frame (10), so that the four clamping plates (29) clamp the first rubber frame (10), and further ensure the sealing performance; S3, then start the first water pump (22), the first water pump (22) pumps the water in the water storage tank (21) into the interior of the installation frame (9), the water accumulates on the composite plate, and then start the third servo motor (19), the output shaft of the third servo motor (19) drives the second rotating gear (20) to rotate, so that the second connecting rack (18) drives the connecting frame (16) to descend, and the connecting frame (16) drives the sealing sliding plate (15) to descend, thereby increasing the pressure inside the installation frame (9), and observing whether there is water seepage at the bottom of the composite plate; S3. After the detection is completed, the sealing sliding plate (15) rises, and the second water pump (25) is started to pump out the water inside the installation frame (9) through the second water pump (25).

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