Leak detection device for heat exchange tube leak detection and use method

Abstract

The present invention relates to the technical field of heat exchangers, and discloses a leak detection device for leak detection of heat exchange tubes and a method of use, comprising a foam liquid tank, an automatic discharge mechanism is arranged on the foam liquid tank, the automatic discharge mechanism comprises a triangular support plate fixedly mounted on the right side of the foam liquid tank, a discharge box is fixedly mounted on the top of the triangular support plate, an inclined slot is provided in the discharge box, and also comprises: a plurality of heat exchange tubes are arranged in the inclined slot, a rectangular frame is slidably mounted on the discharge box, two discharge springs are fixedly mounted on the top inner wall of the rectangular frame, the bottom ends of the two discharge springs are fixedly connected to the discharge box, and a baffle is fixedly mounted on the top inner wall of the rectangular frame. The heat exchange tube of the present invention will remain in the classification box during the rolling process, and if there is no trace of bubbles on the heat exchange tube, the heat exchange tube will directly roll into the classification slot for collection, thereby not only achieving the effect of leak detection but also classifying the leaking heat exchange tube and the intact heat exchange tube.

Description

Technical Field

[0001] The invention relates to the technical field of heat exchanger equipment, and in particular to a leak detection device for leak detection of heat exchange tubes and a use method thereof. Background Art

[0002] The current development trend of heat exchangers is large-scale, efficient, compact, with large heat exchange area and long heat exchange tube length. However, due to the limitations of the manufacturing capabilities of heat exchanger manufacturers, many heat exchange tubes often need to be spliced ​​and are used in high-pressure occasions, toxic media, and flammable and explosive places.

[0003] When the heat exchange tubes are produced in the factory, they need to be leak tested. The leak test is also called a sealing test. The common sealing test needs to be performed manually. The air-filled heat exchange tubes are placed in water to check whether there are bubbles. Such testing is not only time-consuming and labor-intensive, but also has low work efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a leak detection device and a method for use for leak detection of heat exchange tubes, so as to solve the problem that the common sealing test needs to be performed manually, and the air-filled heat exchange tube is placed in water to check whether there are bubbles. Such detection is not only time-consuming and labor-intensive but also has low work efficiency.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a leak detection device for heat exchange tube leak detection, comprising a foam liquid tank, an automatic discharge mechanism is arranged on the foam liquid tank, the automatic discharge mechanism comprises a triangular support plate fixedly mounted on the right side of the foam liquid tank, a discharge box is fixedly mounted on the top of the triangular support plate, an inclined slot is arranged in the discharge box, and further comprises:

[0007] A plurality of heat exchange tubes are arranged in the chute, a rectangular frame is slidably mounted on the discharge box, two discharge springs are fixedly mounted on the top inner wall of the rectangular frame, the bottom ends of the two discharge springs are fixedly connected to the discharge box, a baffle 1 is fixedly mounted on the top inner wall of the rectangular frame, the bottom of the baffle 1 extends into the discharge box, a baffle 2 is fixedly mounted on the bottom inner wall of the rectangular frame, the top of the baffle 2 extends into the chute, the baffle 2 contacts with the corresponding chute, a discharge plate is fixedly mounted on the left side of the discharge box, a circular plate is arranged above the foam liquid tank, a plurality of arc-shaped fixed plates are fixedly mounted on the front side of the circular plate, and contact blocks are fixedly mounted on the outer walls of the plurality of arc-shaped fixed plates.

[0008] Furthermore, a driving mechanism is provided on the foam liquid tank, and the driving mechanism includes mounting plates respectively fixedly mounted on the front and back sides of the foam liquid tank, a driving motor is fixedly mounted on the corresponding front sides of the mounting plates, a hollow rotating shaft is rotatably mounted on the two mounting plates, the hollow rotating shaft passes through the two mounting plates, a front end of the hollow rotating shaft is fixedly connected to an output shaft of the driving motor, the hollow rotating shaft passes through a circular plate and is fixedly connected to the circular plate, and a circular plate 2 is provided above the foam liquid tank.

[0009] Furthermore, a plurality of fixing mechanisms are provided on the side where the circular plate and the second circular plate are close to each other, and the fixing mechanisms include hollow telescopic cylinders respectively fixedly installed on the second circular plate and the side where the circular plate is close to each other, and rubber fixing plates are respectively fixedly installed on the ends of the two hollow telescopic cylinders close to each other, and fixing springs are respectively sleeved on the two hollow telescopic cylinders, and the ends of the two fixing springs close to each other are respectively fixedly connected to the two rubber fixing plates, and the ends of the two fixing springs close to each other are respectively fixedly connected to the second circular plate and the circular plate.

[0010] Furthermore, an adaptation mechanism is respectively provided on the corresponding several hollow telescopic cylinders, and the adaptation mechanism includes a round rod slidably installed in the hollow telescopic cylinder close to the circular plate, the end of the round rod extends to the outside of the hollow telescopic cylinder and is slidably connected to the hollow telescopic cylinder, and a T-shaped arc groove is opened on the outer wall of the corresponding hollow telescopic cylinder, and a T-shaped arc block is fixedly installed on the top of the round rod, and the T-shaped arc block is slidably connected to the T-shaped arc groove, and an adaptation spring is sleeved on the round rod, and the end of the adaptation spring is fixedly connected to the inner wall of the hollow telescopic cylinder close to the circular plate, and the top of the adaptation spring is fixedly connected to the inner wall of the T-shaped arc block, and a contact rod is fixedly installed on the outer wall of the T-shaped arc block, and the top of the contact rod extends to the outside of the hollow telescopic cylinder, and an L-shaped round rod is fixedly installed on the top of the foam liquid tank.

[0011] Furthermore, an extrusion mechanism is provided on the hollow rotating shaft, and a rotating drum is rotatably sleeved on the extrusion mechanism, and the outer wall of the rotating drum is rotatably connected to the second circular plate, and an L-shaped plate is fixedly installed on the top of the foam liquid tank, and the L-shaped plate passes through the second circular plate and is fixedly connected to the second circular plate, and an L-shaped hollow block is fixedly installed on the top of the L-shaped plate, and an extrusion spring is fixedly installed inside the L-shaped hollow block, and an extrusion block is fixedly installed on the left end of the extrusion spring, and the left end of the extrusion block extends into the arc-shaped fixed plate.

[0012] Furthermore, an inflation mechanism is provided on the back of the foam liquid tank, and the inflation mechanism includes an air compressor fixedly installed on the back of the foam liquid tank, an air outlet pipe is fixedly installed on the top of the air compressor, and an air inlet box is fixedly installed on the back of the corresponding mounting plate, the top of the air outlet pipe is fixedly connected to the air inlet box, and the front of the air inlet box is rotatably connected to a hollow rotating shaft, and a plurality of L-shaped air inlet grooves are opened on the hollow rotating shaft, and the ends of a plurality of the L-shaped air inlet grooves away from each other extend outside the circular plate, and a plurality of the L-shaped air inlet grooves respectively penetrate a plurality of rubber fixing plates close to the circular plate.

[0013] Furthermore, a classification mechanism is arranged on the left side of the foam liquid tank, and the classification mechanism comprises a classification box fixedly installed on the left side of the foam liquid tank, a classification slot is provided in the classification box, an installation slot is provided in the classification box, a classification electric telescopic rod is fixedly installed on the left inner wall of the installation slot, an L-shaped baffle is fixedly installed on the output end of the classification electric telescopic rod, and a classification camera is fixedly installed in the classification box.

[0014] Furthermore, the leak detection device for heat exchange tube leak detection comprises the following steps:

[0015] S1: First, start the drive motor, which drives the hollow shaft to rotate, which drives the circular plate to rotate, which drives several arc-shaped fixed plates, several hollow telescopic cylinders and several rubber fixed plates to rotate. During the rotation of the arc-shaped fixed plate, the contact block will be driven to rotate, which will contact the discharge plate and drive the discharge plate to descend, which will drive the rectangular frame to descend, which will drive baffles 1 and 2 to descend, and baffle 1 will move into the chute and block the second left heat exchange tube. When baffle 2 descends, it will move out of the chute. At this time, the first left heat exchange tube will slide out of the discharge box along the chute and fall into the heat exchange box under the inertia of the heat exchange tube. In the corresponding arc-shaped fixed plate, the heat exchange tube will collide with the two rubber fixed plates during the process of descending. The two rubber fixed plates collided by the gravity of the heat exchange tube will move away from each other. At this time, the heat exchange tube will contact the arc-shaped fixed plate due to gravity. The distance of the rubber fixed plate will cause the two fixed springs to compress and deform. At this time, the heat exchange tube will push the two rubber fixed plates to clamp the heat exchange tube under the elastic force of the fixed spring to prevent the heat exchange tube from falling during the rotation of the arc-shaped fixed plate. When the contact block leaves the discharge plate, the rectangular frame will resume rising under the elastic force of the discharge spring. At this time, the second left heat exchange tube will move to the first left position for replenishment, which is convenient for the next discharge.

[0016] S2: When the driving motor is started, the air compressor is started at the same time. The air compressor will input air into the hollow telescopic cylinder fixed on the circular plate through the air outlet pipe, the air inlet box and several L-shaped air inlet grooves at the same time. The air will enter the heat exchange tube along the hollow telescopic cylinder and the L-shaped air inlet groove on the rubber fixing plate. The continuous input of air will increase the air pressure in the heat exchange tube. When the air pressure in the heat exchange tube increases to a certain level, the air will stop being input into the heat exchange tube. At this time, the air will push the rubber fixing plate close to the circular plate, and the rubber fixing plate will move towards the direction close to the second circular plate.

[0017] S3: With the continuous rotation of the circular plate, the inflated heat exchange tube will be driven into the foam liquid tank. During the rotation, the heat exchange tube will be immersed in the foam liquid in the foam liquid tank. The foam liquid will make the heat exchange tube full of foam liquid. With the rotation of the circular plate, the heat exchange tube will move out of the foam liquid tank. When the rubber fixing plate clamped with the foam liquid rotates, the contact rod on the rubber fixing plate will contact the L-shaped round rod. At this time, the extrusion block will also contact the heat exchange tube. As the heat exchange tube continuously adjusts its angle during rotation, the extrusion block will also slide into the L-shaped hollow block. When the extrusion spring is compressed and deformed, the contact rod that contacts the L-shaped round rod will slide into the hollow telescopic cylinder, and the contact rod will drive the T-shaped arc block to leave the T-shaped arc groove. At this time, since the T-shaped arc block leaves the T-shaped arc groove, the air is discharged from the air between the T-shaped arc block and the T-shaped arc groove, thereby reducing the air pressure in the heat exchange tube, and the corresponding rubber fixing plate will loosen the clamping of the heat exchange tube. Subsequently, the extrusion block will be pushed outward under the elastic force of the extrusion spring, and the extrusion block will push out the heat exchange tube clamped by the rubber fixing plate, completing the separation of the rubber fixing plate from the heat exchange tube.

[0018] S4: The detached heat exchange tube will fall onto the classification box and roll. Although the gas has been discharged from the surface of the heat exchange tube, bubble focusing points and foam marks will appear. During the rolling process, the classification camera will check the surface of the heat exchange tube for traces of bubbles. If there are traces of bubbles, the classification electric telescopic rod will drive the L-shaped baffle to move and close the slot in the classification box. At this time, the heat exchange tube will remain in the classification box during the rolling process. If there are no traces of bubbles on the heat exchange tube, the heat exchange tube will roll directly into the classification slot for collection.

[0019] The present invention has the following beneficial effects:

[0020] (1) The present invention provides a leak detection device for detecting leaks in heat exchange tubes. First, a driving motor is started, and the driving motor drives the hollow rotating shaft to rotate. The hollow rotating shaft drives the circular plate to rotate. The circular plate drives a plurality of arc-shaped fixed plates, a plurality of hollow telescopic cylinders and a plurality of rubber fixed plates to rotate. During the rotation of the arc-shaped fixed plate, the contact block is driven to rotate. During the rotation of the contact block, the discharge plate is contacted and driven to descend. The discharge plate drives the rectangular frame to descend. The rectangular frame drives baffle plate 1 and baffle plate 2 to descend. Baffle plate 1 moves into the inclined slot and blocks the second left heat exchange tube. When baffle plate 2 descends, it moves out of the inclined slot. At this time, the first left heat exchange tube slides out of the discharge box along the inclined slot. Under the inertia of the heat exchange tube, it will fall into the corresponding arc-shaped fixed plate. In the process of the heat exchange tube descending, it will collide with the two rubber fixed plates. The two rubber fixed plates collided by the gravity of the heat exchange tube will move away from each other. At this time, the heat exchange tube will contact the arc-shaped fixed plate due to gravity. The distance of the rubber fixed plate will cause the two fixed springs to compress and deform. At this time, the heat exchange tube will push the two rubber fixed plates to clamp the heat exchange tube under the elastic force of the fixed spring to prevent the heat exchange tube from falling during the rotation of the arc-shaped fixed plate. When the contact block leaves the discharge plate, the rectangular frame will resume rising under the elastic force of the discharge spring. At this time, the second left heat exchange tube will move to the first left position for replenishment, which is convenient for the next discharge.

[0021] (2) The present invention provides a leak detection device for detecting leaks in heat exchange tubes. When the driving motor is started, the air compressor is started at the same time. The air compressor simultaneously inputs air into the hollow telescopic cylinder fixed on the circular plate through the air outlet pipe, the air inlet box and a plurality of L-shaped air inlet grooves. The air enters the heat exchange tube along the hollow telescopic cylinder and the L-shaped air inlet grooves on the rubber fixing plate. The continuous input of air will continuously increase the air pressure in the heat exchange tube. When the air pressure in the heat exchange tube increases to a certain level, the air will stop being input into the heat exchange tube. At this time, the air will push the rubber fixing plate close to the circular plate, and the rubber fixing plate will move in the direction close to the second circular plate, thereby enhancing the clamping stability of the rubber fixing plate on the heat exchange tube.

[0022] (3) The present invention provides a leak detection device for detecting leaks in heat exchange tubes. As the circular plate rotates continuously, the inflated heat exchange tubes are driven into the foam liquid tank. The heat exchange tubes are immersed in the foam liquid in the foam liquid tank during the rotation process. The foam liquid will make the heat exchange tubes full of foam liquid. As the circular plate rotates, the heat exchange tubes are moved out of the foam liquid tank. When the rubber fixing plate that is clamped and full of foam liquid rotates, the contact rod on the rubber fixing plate will contact the L-shaped round rod. At this time, the extrusion block will also contact the heat exchange tube. As the heat exchange tube continuously adjusts its angle during rotation, the extrusion block will also move toward the L-shaped round rod. The contact rod will slide in the hollow block of the T-shaped L-shaped rod. At this time, the extrusion spring will be compressed and deformed. After contacting the L-shaped round rod, it will slide into the hollow telescopic cylinder. The contact rod will drive the T-shaped arc block to leave the T-shaped arc groove. At this time, since the T-shaped arc block leaves the T-shaped arc groove, the air is discharged from the air between the T-shaped arc block and the T-shaped arc groove, thereby reducing the air pressure in the heat exchange tube. The corresponding rubber fixing plate will also loosen the clamping of the heat exchange tube. Subsequently, the extrusion block will be pushed outward under the elastic force of the extrusion spring. The extrusion block will push out the heat exchange tube clamped by the rubber fixing plate, completing the separation of the rubber fixing plate from the heat exchange tube.

[0023] (4) The present invention provides a leak detection device for detecting leaks in heat exchange tubes. After being detached, the heat exchange tubes will fall onto a classification box and roll. Although the gas has been discharged from the surface of the heat exchange tubes, bubble focusing points and foam marks will be generated. During the rolling process, the classification camera will check the surface of the heat exchange tubes for traces of bubbles. If there are bubble marks, the classification electric telescopic rod will drive the L-shaped baffle to move and close the slot in the classification box. At this time, the heat exchange tubes will remain in the classification box during the rolling process. If there are no bubble marks on the heat exchange tubes, the heat exchange tubes will directly roll into the classification slot for collection, thereby not only achieving the effect of leak detection but also classifying the leaking heat exchange tubes and the intact heat exchange tubes.

[0024] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the specific embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the front section structure of the present invention;

[0028] Figure 3 For the present invention Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0029] Figure 4 It is a schematic diagram of a partial structural cross-sectional view of the present invention;

[0030] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure of B;

[0031] Figure 6 It is a schematic diagram of a side partial cross-sectional structure of the present invention;

[0032] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure of C in the middle;

[0033] Figure 8 It is a schematic diagram of the method steps of the present invention.

[0034] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0035] In the figure: 1. Foam liquid tank; 100. Automatic discharge mechanism; 101. Triangular support plate; 102. Discharge box; 103. Chute; 104. Heat exchange tube; 105. Rectangular frame; 106. Discharge spring; 107. Baffle 1; 108. Baffle 2; 109. Discharge plate; 110. Round plate; 111. Arc fixing plate; 112. Contact block; 2. Driving mechanism; 201. Mounting plate; 202. Driving motor; 203. Hollow shaft; 204. Round plate 2; 3. Fixing mechanism; 301. Hollow telescopic cylinder; 302. Rubber fixing plate; 303. Fixing spring; 4. Adaptation mechanism; 401, round rod; 402, T-shaped arc groove; 403, T-shaped arc block; 404, adaptive spring; 405, contact rod; 406, L-shaped round rod; 5, extrusion mechanism; 501, rotating drum; 502, L-shaped plate; 503, L-shaped hollow block; 504, extrusion spring; 505, extrusion block; 6, inflation mechanism; 601, air compressor; 602, air outlet pipe; 603, air inlet box; 604, L-shaped air inlet groove; 7, classification mechanism; 701, classification box; 702, classification groove; 703, installation groove; 704, classification electric telescopic rod; 705, L-shaped baffle; 706, classification camera. DETAILED DESCRIPTION

[0036] 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.

[0037] See also Figure 1 - Figure 8 As shown, the present invention is a leak detection device for heat exchange tube leak detection, comprising a foam liquid tank 1, on which an automatic discharge mechanism 100 is arranged, the automatic discharge mechanism 100 comprises a triangular support plate 101 fixedly mounted on the right side of the foam liquid tank 1, a discharge box 102 is fixedly mounted on the top of the triangular support plate 101, and an inclined slot 103 is provided in the discharge box 102, and further comprises:

[0038] A plurality of heat exchange tubes 104 are arranged in the chute 103, a rectangular frame 105 is slidably mounted on the discharge box 102, two discharge springs 106 are fixedly mounted on the top inner wall of the rectangular frame 105, the bottom ends of the two discharge springs 106 are fixedly connected to the discharge box 102, a baffle 107 is fixedly mounted on the top inner wall of the rectangular frame 105, the bottom of the baffle 107 extends into the discharge box 102, a baffle 2 108 is fixedly mounted on the bottom inner wall of the rectangular frame 105, the top of the baffle 2 108 extends into the chute 103, and the baffle 2 108 contacts the corresponding chute 103, a discharge plate 109 is fixedly mounted on the left side of the discharge box 102, a circular plate 110 is arranged above the foam liquid tank 1, a plurality of arc-shaped fixed plates 111 are fixedly mounted on the front of the circular plate 110, and contact blocks 112 are fixedly mounted on the outer walls of the plurality of arc-shaped fixed plates 111.

[0039] like Figure 1 As shown, a driving mechanism 2 is provided on the foam liquid tank 1, and the driving mechanism 2 includes mounting plates 201 respectively fixedly mounted on the front and back sides of the foam liquid tank 1, and a driving motor 202 is fixedly mounted on the front side of the corresponding mounting plates 201, and a hollow rotating shaft 203 is rotatably mounted on the two mounting plates 201, and the hollow rotating shaft 203 passes through the two mounting plates 201, and the front end of the hollow rotating shaft 203 is fixedly connected to the output shaft of the driving motor 202, and the hollow rotating shaft 203 passes through the circular plate 110 and is fixedly connected to the circular plate 110, and a circular plate 204 is provided above the foam liquid tank 1.

[0040] The driving motor 202 is started, and the driving motor 202 drives the hollow shaft 203 to rotate, and the hollow shaft 203 drives the circular plate 110 to rotate, and the circular plate 110 drives a plurality of arc-shaped fixed plates 111, a plurality of hollow telescopic cylinders 301 and a plurality of rubber fixed plates 302 to rotate, and during the rotation of the arc-shaped fixed plate 111, the contact block 112 is driven to rotate, and during the rotation of the contact block 112, the discharge plate 109 is contacted and drives the discharge plate 109 9 descends, the discharge plate 109 drives the rectangular frame 105 to descend, the rectangular frame 105 drives the baffle 107 and the baffle 2 108 to descend, the baffle 107 moves into the inclined slot 103 and blocks the second left heat exchange tube 104, the baffle 2 108 descends and moves out of the inclined slot 103, at this time, the first left heat exchange tube 104 slides out of the discharge box 102 along the inclined slot 103, and falls into the corresponding arc-shaped fixing plate 111 under the inertia of the heat exchange tube 104.

[0041] like Figure 4 and Figure 5 As shown, a plurality of fixing mechanisms 3 are provided on the side where the circular plate 110 and the second circular plate 204 are close to each other. The fixing mechanisms 3 include hollow telescopic cylinders 301 respectively fixedly installed on the side where the second circular plate 204 and the circular plate 110 are close to each other. Rubber fixing plates 302 are respectively fixedly installed on the ends of the two hollow telescopic cylinders 301 close to each other. Fixing springs 303 are respectively sleeved on the two hollow telescopic cylinders 301. The ends of the two fixing springs 303 close to each other are respectively fixedly connected to the two rubber fixing plates 302. The ends of the two fixing springs 303 close to each other are respectively fixedly connected to the second circular plate 204 and the circular plate 110.

[0042] When the heat exchange tube 104 descends, it will collide with the two rubber fixing plates 302. The two rubber fixing plates 302 collided by the gravity of the heat exchange tube 104 will move away from each other. At this time, the heat exchange tube 104 will contact the arc-shaped fixing plate 111 due to gravity. The moving away of the rubber fixing plate 302 will compress and deform the two fixing springs 303. At this time, the heat exchange tube 104 will push the two rubber fixing plates 302 to clamp the heat exchange tube 104 under the elastic force of the fixing springs 303 to prevent the heat exchange tube 104 from falling during the rotation of the arc-shaped fixing plate 111. When the contact block 112 leaves the discharge plate 109, the rectangular frame 105 will resume rising under the elastic force of the discharge spring 106. At this time, the second left heat exchange tube 104 will move to the first left position for replenishment, which is convenient for the next discharge.

[0043] like Figure 5 , Figure 6 and Figure 8As shown, the corresponding plurality of hollow telescopic cylinders 301 are respectively provided with an adapting mechanism 4, the adapting mechanism 4 comprises a round rod 401 slidably mounted in the hollow telescopic cylinder 301 near the circular plate 110, the end of the round rod 401 extends outside the hollow telescopic cylinder 301 and is slidably connected to the hollow telescopic cylinder 301, a T-shaped arc groove 402 is provided on the outer wall of the corresponding hollow telescopic cylinder 301, a T-shaped arc block 403 is fixedly mounted on the top of the round rod 401, and the T-shaped arc block 403 is connected to the hollow telescopic cylinder 301. The T-shaped arc groove 402 is slidably connected, and an adaptable spring 404 is sleeved on the round rod 401. The end of the adaptable spring 404 is fixedly connected to the inner wall of the hollow telescopic cylinder 301 close to the circular plate 110, and the top of the adaptable spring 404 is fixedly connected to the inner wall of the T-shaped arc block 403. A contact rod 405 is fixedly installed on the outer wall of the T-shaped arc block 403, and the top of the contact rod 405 extends to the outside of the hollow telescopic cylinder 301. An L-shaped round rod 406 is fixedly installed on the top of the foam liquid tank 1.

[0044] The contact rod 405 on the rubber fixing plate 302 will contact the L-shaped round rod 406, and at this time, the extrusion block 505 will also contact the heat exchange tube 104. As the heat exchange tube 104 continuously adjusts its angle during rotation, the contact rod 405 that contacts the L-shaped round rod 406 will slide into the hollow telescopic cylinder 301, and the contact rod 405 will drive the T-shaped arc block 403 to leave the T-shaped arc groove 402. At this time, since the T-shaped arc block 403 leaves the T-shaped arc groove 402, the air is discharged from the air between the T-shaped arc block 403 and the T-shaped arc groove 402, thereby reducing the air pressure in the heat exchange tube 104, and the clamping of the rubber fixing plate 302 to the heat exchange tube 104 will also become loose.

[0045] like Figure 6 and Figure 7 As shown, an extrusion mechanism 5 is provided on the hollow rotating shaft 203, and a rotating drum 501 is rotatably sleeved on the extrusion mechanism 5. The outer wall of the rotating drum 501 is rotatably connected to the circular plate 204. An L-shaped plate 502 is fixedly installed on the top of the foam liquid tank 1. The L-shaped plate 502 penetrates the circular plate 204 and is fixedly connected to the circular plate 204. An L-shaped hollow block 503 is fixedly installed on the top of the L-shaped plate 502. An extrusion spring 504 is fixedly installed inside the L-shaped hollow block 503. An extrusion block 505 is fixedly installed on the left end of the extrusion spring 504. The left end of the extrusion block 505 extends into the arc-shaped fixed plate 111.

[0046] The extrusion block 505 will also slide into the L-shaped hollow block 503. At this time, the extrusion spring 504 will be compressed and deformed. The extrusion block 505 will be pushed outward under the elastic force of the extrusion spring 504. The extrusion block 505 will push out the heat exchange tube 104 clamped by the rubber fixing plate 302, thereby completing the separation of the rubber fixing plate 302 and the heat exchange tube 104.

[0047] like Figure 4 and Figure 6As shown, an inflation mechanism 6 is provided on the back of the foam liquid tank 1, and the inflation mechanism 6 includes an air compressor 601 fixedly installed on the back of the foam liquid tank 1, an air outlet pipe 602 is fixedly installed on the top of the air compressor 601, and an air inlet box 603 is fixedly installed on the back of the corresponding mounting plate 201, the top of the air outlet pipe 602 is fixedly connected to the air inlet box 603, and the front of the air inlet box 603 is rotatably connected to the hollow rotating shaft 203, and a plurality of L-shaped air inlet grooves 604 are opened on the hollow rotating shaft 203, and the ends of the plurality of L-shaped air inlet grooves 604 away from each other extend to the outside of the circular plate 110, and the plurality of L-shaped air inlet grooves 604 respectively penetrate a plurality of rubber fixing plates 302 close to the circular plate 110.

[0048] When the driving motor 202 is started, the air compressor 601 is started at the same time. The air compressor 601 will simultaneously input air into the hollow telescopic cylinder 301 fixed on the circular plate 110 through the air outlet pipe 602, the air inlet box 603 and a plurality of L-shaped air inlet grooves 604.

[0049] like Figure 1 As shown, a classification mechanism 7 is arranged on the left side of the foam liquid tank 1, and the classification mechanism 7 includes a classification box 701 fixedly installed on the left side of the foam liquid tank 1, a classification slot 702 is opened in the classification box 701, a mounting slot 703 is opened in the classification box 701, a classification electric telescopic rod 704 is fixedly installed on the left inner wall of the mounting slot 703, an L-shaped baffle 705 is fixedly installed on the output end of the classification electric telescopic rod 704, and a classification camera 706 is fixedly installed in the classification box 701.

[0050] The detached heat exchange tube 104 will fall onto the classification box 701 and roll. Although the gas has been discharged from the surface of the heat exchange tube 104, bubble focusing points and foam marks will be produced. During the rolling process, the classification camera 706 will check the surface of the heat exchange tube 104 for bubble marks. If there are bubble marks, the classification electric telescopic rod 704 will drive the L-shaped baffle 705 to move and close the groove in the classification box 701. At this time, the heat exchange tube 104 will remain in the classification box 701 during the rolling process. If there are no bubble marks on the heat exchange tube 104, the heat exchange tube 104 will directly roll into the classification groove 702 for collection, thereby not only achieving the effect of leak detection but also classifying the leaking heat exchange tube 104 and the intact heat exchange tube 104.

[0051] like Figure 1-8 A leak detection device for heat exchange tube leak detection is shown, and the method steps are as follows:

[0052] S1: First, start the driving motor 202, the driving motor 202 drives the hollow rotating shaft 203 to rotate, the hollow rotating shaft 203 drives the circular plate 110 to rotate, the circular plate 110 drives a plurality of arc-shaped fixed plates 111, a plurality of hollow telescopic cylinders 301 and a plurality of rubber fixed plates 302 to rotate, during the rotation of the arc-shaped fixed plate 111, the contact block 112 will be driven to rotate, during the rotation of the contact block 112, the discharge plate 109 will be contacted with the discharge plate 109 and drive the discharge plate 109 to descend, the discharge plate 109 will drive the rectangular frame 105 to descend, the rectangular frame 105 drives the baffle 1 107 and the baffle 2 108 to descend, the baffle 1 107 will move into the chute 103 and block the second left heat exchange tube 104, the baffle 2 108 will descend and move out of the chute 103, at this time the first left heat exchange tube 104 will slide out of the discharge box 102 along the chute 103, The heat exchange tube 104 will fall into the corresponding arc-shaped fixing plate 111 under the action of inertia. During the process of the heat exchange tube 104 descending, it will collide with the two rubber fixing plates 302. The two rubber fixing plates 302 collided by the gravity of the heat exchange tube 104 will move away from each other. At this time, the heat exchange tube 104 will contact the arc-shaped fixing plate 111 due to gravity. The distance of the rubber fixing plate 302 will cause the two fixing springs 303 to be compressed and deformed. At this time, the heat exchange tube 104 will push the two rubber fixing plates 302 to clamp the heat exchange tube 104 under the elastic force of the fixing spring 303 to prevent the heat exchange tube 104 from falling during the rotation of the arc-shaped fixing plate 111. When the contact block 112 leaves the discharge plate 109, the rectangular frame 105 will resume rising under the elastic force of the discharge spring 106. At this time, the second left heat exchange tube 104 will move to the first left position for replenishment, which is convenient for the next discharge.

[0053] S2: When the driving motor 202 is started, the air compressor 601 is started at the same time. The air compressor 601 will simultaneously input air into the hollow telescopic cylinder 301 fixed on the circular plate 110 through the air outlet pipe 602, the air inlet box 603 and a plurality of L-shaped air inlet grooves 604. The air will enter the heat exchange tube 104 along the hollow telescopic cylinder 301 and the L-shaped air inlet grooves 604 on the rubber fixing plate 302. The continuous input of air will increase the air pressure in the heat exchange tube 104. When the air pressure in the heat exchange tube 104 increases to a certain level, the air will stop being input into the heat exchange tube 104. At this time, the air will push the rubber fixing plate 302 close to the circular plate 110, and the rubber fixing plate 302 will move towards the direction close to the circular plate 204.

[0054] S3: With the continuous rotation of the circular plate 110, the inflated heat exchange tube 104 will be driven into the foam liquid tank 1. The heat exchange tube 104 will be immersed in the foam liquid in the foam liquid tank 1 during the rotation process. The foam liquid will make the heat exchange tube 104 full of foam liquid. With the rotation of the circular plate 110, the heat exchange tube 104 will move out of the foam liquid tank 1. When the rubber fixing plate 302 clamped with the foam liquid is rotating, the contact rod 405 on the rubber fixing plate 302 will contact the L-shaped round rod 406. At this time, the extrusion block 505 will also contact the heat exchange tube 104. As the heat exchange tube 104 continuously adjusts its angle during rotation, the extrusion block 505 will also slide into the L-shaped hollow block 503. At this time, the extrusion spring 50 4 will be compressed and deformed, and the contact rod 405 will slide into the hollow telescopic cylinder 301 after contacting the L-shaped round rod 406, and the contact rod 405 will drive the T-shaped arc block 403 to leave the T-shaped arc groove 402. At this time, since the T-shaped arc block 403 leaves the T-shaped arc groove 402, the air is discharged from the air between the T-shaped arc block 403 and the T-shaped arc groove 402, thereby reducing the air pressure in the heat exchange tube 104, and the corresponding rubber fixing plate 302 will loosen the clamping of the heat exchange tube 104. Then, the extrusion block 505 will be pushed outward under the elastic force of the extrusion spring 504, and the extrusion block 505 will push out the heat exchange tube 104 clamped by the rubber fixing plate 302, completing the separation of the rubber fixing plate 302 from the heat exchange tube 104;

[0055] S4: The detached heat exchange tube 104 will fall onto the classification box 701 and roll. Although the gas has been discharged from the surface of the heat exchange tube 104, bubble focusing points and foam marks will be generated. During the rolling process, the classification camera 706 will check the surface of the heat exchange tube 104 for bubble marks. If there are bubble marks, the classification electric telescopic rod 704 will drive the L-shaped baffle 705 to move and close the slot in the classification box 701. At this time, the heat exchange tube 104 will remain in the classification box 701 during the rolling process. If there are no bubble marks on the heat exchange tube 104, the heat exchange tube 104 will directly roll into the classification slot 702 for collection.

[0056] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A leak detection device for detecting leaks in heat exchange tubes, comprising a foam liquid tank (1), wherein the foam liquid tank (1) is provided with an automatic discharge mechanism (100), wherein the automatic discharge mechanism (100) comprises a triangular support plate (101) fixedly mounted on the right side of the foam liquid tank (1), wherein a discharge box (102) is fixedly mounted on the top of the triangular support plate (101), wherein an inclined slot (103) is provided in the discharge box (102), wherein: Also includes: A plurality of heat exchange tubes (104) are arranged in the chute (103); a rectangular frame (105) is slidably mounted on the discharge box (102); two discharge springs (106) are fixedly mounted on the top inner wall of the rectangular frame (105); the bottom ends of the two discharge springs (106) are fixedly connected to the discharge box (102); a baffle plate 1 (107) is fixedly mounted on the top inner wall of the rectangular frame (105); the bottom of the baffle plate 1 (107) extends into the discharge box (102); and the bottom of the rectangular frame (105) is fixedly mounted on the top inner wall of the rectangular frame (105). A second baffle plate (108) is fixedly mounted on the inner wall, the top of the second baffle plate (108) extending into the inclined groove (103), the second baffle plate (108) being in contact with the corresponding inclined groove (103), a discharge plate (109) being fixedly mounted on the left side of the discharge box (102), a circular plate (110) being arranged above the foam liquid tank (1), a plurality of arc-shaped fixed plates (111) being fixedly mounted on the front side of the circular plate (110), and contact blocks (112) being fixedly mounted on the outer walls of the plurality of arc-shaped fixed plates (111); The foam liquid tank (1) is provided with a driving mechanism (2), the driving mechanism (2) comprising mounting plates (201) respectively fixedly mounted on the front and back of the foam liquid tank (1), a driving motor (202) being fixedly mounted on the front of the corresponding mounting plate (201), a hollow rotating shaft (203) being rotatably mounted on the two mounting plates (201), the hollow rotating shaft (203) passing through the two mounting plates (201), a front end of the hollow rotating shaft (203) being fixedly connected to an output shaft of the driving motor (202), the hollow rotating shaft (203) passing through the circular plate (110) and being fixedly connected to the circular plate (110), and a second circular plate (204) being provided above the foam liquid tank (1); A plurality of fixing mechanisms (3) are arranged on the side where the circular plate (110) and the second circular plate (204) are close to each other. The fixing mechanisms (3) include hollow telescopic cylinders (301) respectively fixedly mounted on the side where the second circular plate (204) and the circular plate (110) are close to each other. A rubber fixing plate (302) is respectively fixedly mounted on the ends of the two hollow telescopic cylinders (301) close to each other. A fixing spring (303) is respectively sleeved on the two hollow telescopic cylinders (301). The ends of the two fixing springs (303) close to each other are respectively fixedly connected to the two rubber fixing plates (302). The ends of the two fixing springs (303) close to each other are respectively fixedly connected to the second circular plate (204) and the circular plate (110). The corresponding plurality of hollow telescopic cylinders (301) are respectively provided with an adapting mechanism (4), the adapting mechanism (4) comprising a round rod (401) slidably mounted inside the hollow telescopic cylinder (301) near the circular plate (110), the end of the round rod (401) extending outside the hollow telescopic cylinder (301) and being slidably connected to the hollow telescopic cylinder (301), a T-shaped arc groove (402) being provided on the outer wall of the corresponding hollow telescopic cylinder (301), a T-shaped arc block (403) being fixedly mounted on the top end of the round rod (401), the T-shaped arc block (403) and the T-shaped arc block (403) being connected to the T The round rod (401) is slidably connected to the hollow telescopic cylinder (301) by a shaped arc groove (402), an adaptable spring (404) is sleeved on the round rod (401), the end of the adaptable spring (404) is fixedly connected to the inner wall of the hollow telescopic cylinder (301) close to the circular plate (110), the top of the adaptable spring (404) is fixedly connected to the inner wall of the T-shaped arc block (403), a contact rod (405) is fixedly mounted on the outer wall of the T-shaped arc block (403), the top of the contact rod (405) extends to the outside of the hollow telescopic cylinder (301), and an L-shaped round rod (406) is fixedly mounted on the top of the foam liquid tank (1); An extrusion mechanism (5) is arranged on the hollow rotating shaft (203), a rotating drum (501) is rotatably sleeved on the extrusion mechanism (5), the outer wall of the rotating drum (501) is rotatably connected to the second circular plate (204), an L-shaped plate (502) is fixedly mounted on the top of the foam liquid tank (1), the L-shaped plate (502) penetrates the second circular plate (204) and is fixedly connected to the second circular plate (204), an L-shaped hollow block (503) is fixedly mounted on the top of the L-shaped plate (502), an extrusion spring (504) is fixedly mounted inside the L-shaped hollow block (503), an extrusion block (505) is fixedly mounted on the left end of the extrusion spring (504), and the left end of the extrusion block (505) extends into the arc-shaped fixed plate (111); An air charging mechanism (6) is arranged on the back of the foam liquid tank (1), and the air charging mechanism (6) comprises an air compressor (601) fixedly mounted on the back of the foam liquid tank (1); an air outlet pipe (602) is fixedly mounted on the top of the air compressor (601); an air inlet box (603) is fixedly mounted on the back of the corresponding mounting plate (201); the top of the air outlet pipe (602) is fixedly connected to the air inlet box (603); the front of the air inlet box (603) is rotatably connected to the hollow rotating shaft (203); a plurality of L-shaped air inlet grooves (604) are arranged on the hollow rotating shaft (203); the ends of the plurality of L-shaped air inlet grooves (604) that are away from each other all extend outside the circular plate (110); and the plurality of L-shaped air inlet grooves (604) respectively penetrate a plurality of rubber fixing plates (302) close to the circular plate (110); A classification mechanism (7) is arranged on the left side of the foam liquid tank (1), the classification mechanism (7) comprising a classification box (701) fixedly mounted on the left side of the foam liquid tank (1), a classification slot (702) being provided in the classification box (701), a mounting slot (703) being provided in the classification box (701), a classification electric telescopic rod (704) being fixedly mounted on the left inner wall of the mounting slot (703), an L-shaped baffle (705) being fixedly mounted on the output end of the classification electric telescopic rod (704), and a classification camera (706) being fixedly mounted in the classification box (701).

2. A method for using a leak detection device for detecting leaks in a heat exchange tube, using the leak detection device for detecting leaks in a heat exchange tube as claimed in claim 1, characterized in that: The steps are as follows: S1: First, the driving motor (202) is started, the driving motor (202) drives the hollow rotating shaft (203) to rotate, the hollow rotating shaft (203) drives the circular plate (110) to rotate, the circular plate (110) drives a plurality of arc-shaped fixed plates (111), a plurality of hollow telescopic cylinders (301) and a plurality of rubber fixed plates (302) to rotate, and during the rotation of the arc-shaped fixed plate (111), the contact block (112) is driven to rotate, and during the rotation of the contact block (112), the contact block (112) contacts the contact plate (112). The discharge plate (109) moves to the discharge plate (109) and drives the discharge plate (109) to descend. The discharge plate (109) drives the rectangular frame (105) to descend. The rectangular frame (105) drives the baffle plate 1 (107) and the baffle plate 2 (108) to descend. The baffle plate 1 (107) moves into the inclined slot (103) and blocks the left second heat exchange tube (104). The baffle plate 2 (108) descends and moves out of the inclined slot (103). At this time, the left first heat exchange tube (104) slides out of the discharge box (102) along the inclined slot (103). In addition, the heat exchange tube (104) will fall into the corresponding arc-shaped fixing plate (111) due to the inertia of the heat exchange tube (104). During the process of the heat exchange tube (104) falling, it will collide with the two rubber fixing plates (302). The two rubber fixing plates (302) collided by the gravity of the heat exchange tube (104) will move away from each other. At this time, the heat exchange tube (104) will contact the arc-shaped fixing plate (111) due to gravity. The moving away of the rubber fixing plates (302) will cause the two fixing springs (303) to be compressed and deformed. At this time, the heat exchange tube (104) will The tube (104) will push the two rubber fixing plates (302) to clamp the heat exchange tube (104) under the elastic force of the fixing spring (303), so as to prevent the heat exchange tube (104) from falling off during the rotation of the arc-shaped fixing plate (111). When the contact block (112) leaves the discharge plate (109), the rectangular frame (105) will resume rising under the elastic force of the discharge spring (106). At this time, the second heat exchange tube (104) on the left will move to the first position on the left for replenishment, so as to facilitate the next discharge. S2: When the driving motor (202) is started, the air compressor (601) is started at the same time. The air compressor (601) simultaneously inputs air into the hollow telescopic cylinder (301) fixed on the circular plate (110) through the air outlet pipe (602), the air inlet box (603) and a plurality of L-shaped air inlet grooves (604). The air enters the heat exchange tube (104) along the hollow telescopic cylinder (301) and the L-shaped air inlet grooves (604) on the rubber fixing plate (302). The continuous input of air will cause the air pressure in the heat exchange tube (104) to increase continuously. When the air pressure in the heat exchange tube (104) increases to a certain level, the air will stop being input into the heat exchange tube (104). At this time, the air will push the rubber fixing plate (302) close to the circular plate (110), and the rubber fixing plate (302) will move in a direction close to the second circular plate (204); S3: As the circular plate (110) continues to rotate, the inflated heat exchange tube (104) will be driven into the foam liquid tank (1). During the rotation process, the heat exchange tube (104) will be immersed in the foam liquid in the foam liquid tank (1). The foam liquid will make the heat exchange tube (104) full of foam liquid. As the circular plate (110) rotates, the heat exchange tube (104) will move out of the foam liquid tank (1). When the rubber fixing plate (302) that is full of foam liquid rotates, the contact rod (405) on the rubber fixing plate (302) will contact the L-shaped round rod (406). At this time, the extrusion block (505) will also contact the heat exchange tube (104). As the heat exchange tube (104) continuously adjusts its angle during rotation, the extrusion block (505) will also slide into the L-shaped hollow block (503). At this time, the extrusion spring (504) Compression deformation will occur, and the contact rod (405) will slide into the hollow telescopic cylinder (301) after contacting the L-shaped round rod (406). The contact rod (405) will drive the T-shaped arc block (403) to leave the T-shaped arc groove (402). At this time, since the T-shaped arc block (403) leaves the T-shaped arc groove (402), air is discharged from the gap between the T-shaped arc block (403) and the T-shaped arc groove (402), thereby reducing the air pressure in the heat exchange tube (104). Correspondingly, the clamping of the rubber fixing plate (302) and the heat exchange tube (104) will also become loose. Subsequently, the extrusion block (505) will be pushed outward under the elastic force of the extrusion spring (504), and the extrusion block (505) will push out the heat exchange tube (104) clamped by the rubber fixing plate (302), thereby completing the separation of the rubber fixing plate (302) and the heat exchange tube (104); S4: The detached heat exchange tube (104) will fall onto the classification box (701) and roll. Although the gas has been discharged from the surface of the heat exchange tube (104), bubble focusing points and foam marks will be generated. During the rolling process, the classification camera (706) will check the surface of the heat exchange tube (104) for bubble marks. If there are bubble marks, the classification electric telescopic rod (704) will drive the L-shaped baffle (705) to move and close the slot in the classification box (701). At this time, the heat exchange tube (104) will remain in the classification box (701) during the rolling process. If there are no bubble marks on the heat exchange tube (104), the heat exchange tube (104) will directly roll into the classification slot (702) for collection.

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