CN214843811U - Device for detecting U-shaped heat exchange tube tightness - Google Patents
Device for detecting U-shaped heat exchange tube tightness Download PDFInfo
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- CN214843811U CN214843811U CN202121423317.8U CN202121423317U CN214843811U CN 214843811 U CN214843811 U CN 214843811U CN 202121423317 U CN202121423317 U CN 202121423317U CN 214843811 U CN214843811 U CN 214843811U
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- heat exchange
- exchange tube
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Abstract
The utility model relates to a hydrostatic test device specifically is a device for detecting U type heat exchange tube seal nature. Including U type heat exchange tube and automatic pump of beating, be equipped with three-jaw self-centering chuck on the both ends of U type heat exchange tube respectively, bolted connection has the bed frame on the three-jaw self-centering chuck, be equipped with respectively on the both sides face of bed frame with the three-jaw self-centering chuck central corresponding through-hole, the tip of U type heat exchange tube passes on one of them through-hole and arranges in the bed frame, threaded connection has the double-screw bolt on another through-hole, sealing connection has the sealed slider pressure head on the tip of U type heat exchange tube, the opposite side and the double-screw bolt of sealed slider pressure head are connected, be equipped with the passageway with U type heat exchange tube and automatic pump intercommunication on the sealed slider pressure head, sealed slider pressure head slidable mounting is on the opposite side with the corresponding bed frame of three-jaw self-centering chuck. Simple structure, small and exquisite convenience can satisfy the detection requirement of U type heat exchange tube seal nature, need not make the basin, and easy operation is convenient, improves experimental speed.
Description
Technical Field
The utility model relates to a heat exchange tube seal nature detection area specifically is a device for detecting U type heat exchange tube seal nature.
Background
The U-shaped heat exchange tubes in the mechanical and chemical industries are widely used, and due to the structural particularity, each U-shaped heat exchange tube needs to be subjected to a hydrostatic test before a tube bundle is assembled, and whether the tube and a bending section have penetrating defects such as cracks, air holes and the like is checked, so that the service performance of the U-shaped heat exchange tube after installation is ensured; the existing hydrostatic test tool adopts an air pressure detection principle after bending a U-shaped heat exchange tube, and flushes the inside of the bent U-shaped heat exchange tube into compressed air according to the pressure required by relevant regulatory standards, then seals two ends of the U-shaped heat exchange tube, and integrally invades into a water tank to detect the airtightness and detect whether deformation, abnormal sound and bubbles are generated; the water tank is required to be manufactured in the mode, the straight pipe sections of the common U-shaped heat exchange pipes are more than 6 meters in length, and the radii of the bent pipes are not uniform, so that the water tank is large in size, inconvenient to operate and slow in test speed, and the water tank is required to be heated in winter to ensure that test water is not frozen, so that the cost is high and danger is caused; in addition, the two ports of the head of the U-shaped heat exchange tube are difficult to be connected and fixed with the automatic pressurizing pump, the assembly is slow, and the efficiency is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the above problem to a device for detecting U type heat exchange tube seal is provided, simple structure, small and exquisite convenience can satisfy the detection requirement of U type heat exchange tube seal, and need not make the basin, has reduced the manufacturing cost of enterprise, and easy operation is convenient, has improved experimental speed, and easily makes, application scope is wide.
The utility model provides a problem, the technical scheme who adopts is:
the utility model provides a device for detecting U type heat exchange tube seal, including U type heat exchange tube and automatic pump of beating, be equipped with three-jaw from centering chuck on the both ends of U type heat exchange tube respectively, bolted connection has the bed frame on the three-jaw self-centering chuck, be equipped with the through-hole corresponding with three-jaw self-centering chuck center on the both sides face of bed frame respectively, the tip of U type heat exchange tube passes on one of them through-hole and arranges in the bed frame, threaded connection has the double-screw bolt on another through-hole, sealing connection has the sealed slider pressure head on the tip of U type heat exchange tube, the opposite side and the double-screw bolt of sealed slider pressure head are connected, be equipped with the passageway with U type heat exchange tube and automatic pump intercommunication of beating on the sealed slider pressure head slidable mounting on the opposite side with the corresponding bed frame of three-jaw self-centering chuck.
Adopt above-mentioned technical scheme the utility model discloses, compare with prior art, its outstanding characteristics are:
the utility model discloses simple structure, small and exquisite convenience can satisfy the detection requirement of U type heat exchange tube seal, and need not make the basin, has reduced the manufacturing cost of enterprise, makes easily to be connected fixedly between the both ends mouth of U type heat exchange tube head and the automatic pressurizing pump in addition, and easy operation is convenient, and then improves experimental speed to easily make, application scope is wide, does benefit to popularization and batch production.
Preferably, the present invention further provides:
and a sliding pipe is arranged on the other side of the base frame corresponding to the three-jaw self-centering chuck, and a sealing slide block pressure head is slidably arranged on the sliding pipe.
The left side and the right side of the sealing slide block pressure head are respectively provided with a groove, a sealing gasket is arranged in the groove on the left side, the sealing slide block pressure head is connected with the U-shaped heat exchange tube in a sealing mode through the sealing gasket, the channel is arranged on the groove on the left side to communicate the U-shaped heat exchange tube with the automatic pressurizing pump, and the end portion of the stud penetrates through the through hole and is arranged in the groove on the right side.
Drawings
Fig. 1 is a schematic view of a front view structure of an embodiment of the present invention;
in the figure: 1. a U-shaped heat exchange tube; 2. a three-jaw self-centering chuck; 3. sealing the slide block pressure head; 4. a sliding tube; 5. a stud; 6. a base plate; 7. a first fixing plate; 8. a second fixing plate; 9. a gasket; 10. a channel; 11. and a nut.
Detailed Description
The following description of the embodiments will help the public to understand the present invention, but the specific embodiments given by the applicant should not be considered as limiting the technical solution of the present invention, and any changes in the definition of the components or technical features and/or in the form of the overall structure rather than substantial changes should be considered as the protection scope defined by the technical solution of the present invention.
Referring to fig. 1, the technical solution of the present invention is as follows:
a device for detecting the tightness of a U-shaped heat exchange tube comprises a U-shaped heat exchange tube 1, an automatic pressurizing pump, a three-jaw self-centering chuck 2, a base frame, a sealing slide block pressure head 3, a sliding tube 4 and a stud 5, wherein the three-jaw self-centering chuck 2 is respectively arranged at two ends of the U-shaped heat exchange tube 1, the three-jaw self-centering chuck 2 is used for fixing the U-shaped heat exchange tube 1 so as to be compressed and sealed, the base frame is in a groove shape and is formed by splicing a bottom plate 6, a first fixing plate 7 and a second fixing plate 8, the first fixing plate 7 and the second fixing plate 8 are respectively welded at the left side and the right side of the bottom plate 6, the first fixing plate 7 is in bolt connection with the three-jaw self-centering chuck 2, through holes corresponding to the centers of the three-jaw self-centering chuck 2 are respectively arranged on the first fixing plate 7 and the second fixing plate 8, the end part of the U-shaped heat exchange tube 1 passes through holes on the base frame 7 to be installed on the base frame, nuts 11 are welded on the through holes of the second fixing plate 8, the double-screw bolt 5 passes through nut 11 and the through-hole threaded connection on the second fixed plate 8, the welding has the handle on the right side tip of double-screw bolt 5, it has the recess to open respectively on the left and right sides of slider pressure head 3, install sealed pad 9 in the left side recess, slider pressure head 3 passes through sealed pad 9 and U type heat exchange tube 1 sealing connection, be equipped with the internal thread in the right side recess, the left side tip of double-screw bolt 5 passes through the through-hole on the second fixed plate 8 and slider pressure head 3's right side recess threaded connection, it has the passageway 10 with U type heat exchange tube 1 and automatic pump intercommunication to open on slider pressure head 3's the left side recess, one side and U type heat exchange tube 1 intercommunication of passageway 10, the opposite side and the automatic pump threaded connection of passageway 10, slide tube 4 welds on the medial surface of second fixed plate 8, slider pressure head 3 slidable mounting is on slide tube 4.
The working principle of the device is as follows: the two end parts of the U-shaped heat exchange tube 1 respectively penetrate through the three-jaw self-centering chuck 2 and the through hole on the first fixing plate 7 in sequence and are fixedly installed on the base frame, the two end parts of the U-shaped heat exchange tube 1 are respectively arranged in the left groove of the sealing slide block pressure head 3, the sealing slide block pressure head 3 is driven to slide towards the left side on the sliding tube 4 through rotating the stud 5 and is in sealing connection with the two end parts of the U-shaped heat exchange tube 1, and then the output end of the automatic pressurizing pump is in threaded connection with the channel 10 on the sealing slide block pressure head 3 and is fastened to complete installation; and (3) starting the automatic pressurizing pump, filling compressed air into the interior of the U-shaped heat exchange tube 1 according to the pressure required by relevant regulation standards, maintaining the pressure for a certain time, and detecting whether the U-shaped heat exchange tube 1 has the phenomena of deformation, abnormal sound, air leakage and the like.
The utility model discloses simple structure, small and exquisite convenience can satisfy the detection requirement of U type heat exchange tube seal, and need not make the basin, has reduced the manufacturing cost of enterprise, makes easily to be connected fixedly between the both ends mouth of U type heat exchange tube head and the automatic pressurizing pump in addition, and easy operation is convenient, and then improves experimental speed to easily make, application scope is wide, does benefit to popularization and batch production.
The above description is only a preferred and practical embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent variations made by using the contents of the specification and the drawings are included in the scope of the present invention.
Claims (3)
1. The utility model provides a device for detecting U type heat exchange tube leakproofness, includes U type heat exchange tube and automatic pump of beating, its characterized in that: the two ends of the U-shaped heat exchange tube are respectively provided with a three-jaw self-centering chuck, the three-jaw self-centering chuck is connected with a base frame through a bolt, two side surfaces of the base frame are respectively provided with a through hole corresponding to the center of the three-jaw self-centering chuck, the end part of the U-shaped heat exchange tube penetrates through one of the through holes and is arranged on the base frame, the other through hole is connected with a double-screw bolt through threads, the end part of the U-shaped heat exchange tube is connected with a sealing slide block pressure head in a sealing mode, the other side of the sealing slide block pressure head is connected with the double-screw bolt, a channel for communicating the U-shaped heat exchange tube and an automatic pressurizing pump is arranged on the sealing slide block pressure head, and the sealing slide block pressure head is slidably mounted on the other side of the base frame corresponding to the three-jaw self-centering chuck.
2. The device for detecting the tightness of the U-shaped heat exchange tube according to claim 1, is characterized in that: and a sliding pipe is arranged on the other side of the base frame corresponding to the three-jaw self-centering chuck, and a sealing slide block pressure head is slidably arranged on the sliding pipe.
3. The device for detecting the tightness of the U-shaped heat exchange tube according to claim 1, is characterized in that: the left side and the right side of the sealing slide block pressure head are respectively provided with a groove, a sealing gasket is arranged in the groove on the left side, the sealing slide block pressure head is connected with the U-shaped heat exchange tube in a sealing mode through the sealing gasket, the channel is arranged on the groove on the left side to communicate the U-shaped heat exchange tube with the automatic pressurizing pump, and the end portion of the stud penetrates through the through hole and is arranged in the groove on the right side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121423317.8U CN214843811U (en) | 2021-06-25 | 2021-06-25 | Device for detecting U-shaped heat exchange tube tightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121423317.8U CN214843811U (en) | 2021-06-25 | 2021-06-25 | Device for detecting U-shaped heat exchange tube tightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214843811U true CN214843811U (en) | 2021-11-23 |
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ID=78810033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121423317.8U Active CN214843811U (en) | 2021-06-25 | 2021-06-25 | Device for detecting U-shaped heat exchange tube tightness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214843811U (en) |
-
2021
- 2021-06-25 CN CN202121423317.8U patent/CN214843811U/en active Active
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