CN221007125U - Internal expansion type heat exchange tube pressure test tool - Google Patents
Internal expansion type heat exchange tube pressure test tool Download PDFInfo
- Publication number
- CN221007125U CN221007125U CN202322970247.3U CN202322970247U CN221007125U CN 221007125 U CN221007125 U CN 221007125U CN 202322970247 U CN202322970247 U CN 202322970247U CN 221007125 U CN221007125 U CN 221007125U
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- Prior art keywords
- heat exchange
- stop block
- exchange tube
- pressure
- sealing ring
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- 238000012360 testing method Methods 0.000 title claims abstract description 36
- 238000007789 sealing Methods 0.000 claims abstract description 43
- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 238000004891 communication Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 238000001125 extrusion Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The application relates to an internal expansion type heat exchange tube pressure test tool, which comprises the following components: the connecting pipe is provided with a communication hole on the pipe wall and is positioned in the heat exchange pipe; the first stop block is sleeved with a first sealing ring and a first compression ring; the first nut is connected with the screw thread; a pressure gauge; the second stop block is sleeved with a second sealing ring and a second compression ring; the second nut is connected to the second stop block in a threaded mode. According to the application, the pressure test fixture is arranged in the heat exchange tube, the first sealing ring and the second sealing ring form sealing on the tube wall of the heat exchange tube, the first check block and the second check block also form extrusion towards two sides under the action of pressure, and the first sealing ring and the second sealing ring form extrusion, so that the sealing effect of the pressure test fixture on the heat exchange tube is improved, the pressure test fixture is convenient for pressure test personnel to test the pressure in the heat exchange tube, the pressure test fixture is arranged in the heat exchange tube and is not easy to deviate, the structures at two sides of the connecting tube can keep balance under the action of the water pressure, the stability is good, and the pressure test data is more accurate.
Description
Technical Field
The application relates to the field of pressure test of heat exchange tubes, in particular to an internal expansion type heat exchange tube pressure test tool.
Background
There are various types of exchange heat exchangers in the pressure vessel industry, wherein heat exchange tubes are mainly used as heat exchange elements, and in order to ensure safe and reliable operation of the heat exchange tubes in high-temperature, high-pressure and harsh media, pressure tests are required before delivery and use.
At present, the common pressure test structure is to seal by utilizing the clamp type structure at two ports of the heat exchange tube respectively, but the clamp type structure is extremely easy to loose, trip and disconnect when the heat exchange tube is subjected to pressure test by utilizing the structure, so that the pressure test of the heat exchanger is affected, and the personal safety of workers is easily threatened.
Disclosure of Invention
In order to better perform a pressure test on a heat exchanger, and improve the stability of a pressure testing tool and the personal safety of staff when performing the pressure test on the heat exchanger, the application provides an internal expansion type heat exchanger pressure testing tool.
The application provides an internal expansion type heat exchange tube pressure test tool, which adopts the following technical scheme:
an interior expansion heat exchange tube pressure testing frock, includes:
The connecting pipe is provided with a communication hole on the pipe wall and is positioned in the heat exchange pipe;
The first stop block is connected with one end of the connecting pipe and provided with a pressure channel in the middle;
The first sealing ring is sleeved on the first stop block;
the first compression ring is sleeved on the first stop block and is abutted with the first sealing ring;
The first nut is in threaded connection with the first stop block and is used for propping against the first compression ring;
The pressure gauge is in threaded connection with the first stop block;
the second stop block is connected with the connecting pipe;
the second sealing ring is sleeved on the second stop block;
The second compression ring is sleeved on the second stop block and is abutted with the second sealing ring; and
The second nut is connected to the second stop block in a threaded manner; for abutting against the second pressure ring.
Preferably, the pressure testing tool further comprises a connector, and two ends of the connector are respectively connected with the connecting pipe and the second stop block.
Preferably, the outer wall of the first stop block is provided with external threads, and the first nut is in threaded connection with the external threads of the first stop block.
Preferably, the pressure gauge is in threaded connection with the external thread of the first stop block.
In summary, the application has the following beneficial technical effects:
1. According to the application, the pressure testing tool is placed in the heat exchange tube, then the first sealing ring and the second sealing ring form sealing on the tube wall of the heat exchange tube, and meanwhile, the first check block and the second check block also form extrusion towards two sides under the action of pressure, so that the first sealing ring and the second sealing ring are further extruded, the sealing effect of the pressure testing tool on the heat exchange tube is further improved, the pressure testing of pressure testing personnel on the inside of the heat exchange tube is facilitated, the pressure testing tool is placed in the inside of the heat exchange tube and is not easy to break off, the structures at two sides of the connecting tube can be kept balanced under the action of water pressure, the stability is good, and the obtained pressure testing data is more accurate.
Drawings
FIG. 1 is a schematic illustration in full section of the overall structure of an embodiment of the present application.
Fig. 2 is a schematic structural view of another embodiment of the present application.
Reference numerals illustrate: 100. a heat exchange tube; 11. a connecting pipe; 111. a communication hole; 12. a first stopper; 13. a first seal ring; 14. a first press ring; 15. a first nut; 16. a pressure gauge; 17. a connector; 18. a second stopper; 19. a second seal ring; 20. a second press ring; 21. and a second nut.
Detailed Description
The present application will be described in further detail with reference to the accompanying drawings.
The embodiment of the application discloses an internal expansion type heat exchange tube pressure test tool.
Referring to fig. 1, the pressure test fixture for the inner expansion heat exchange tube 100 includes a connecting tube 11, a first stop block 12, a first sealing ring 13, a first compression ring 14, a first nut 15, a pressure gauge 16, a connector 17, a second stop block 18, a second sealing ring 19, a second compression ring 20 and a second nut 21.
The connecting pipe 11 is installed in the heat exchange tube 100, the length of the connecting pipe 11 can be set according to the length of the heat exchange tube 100, the heat exchange tube 100 can adopt a T-shaped pipeline, a communication hole 111 is formed in the wall of the connecting pipe 11, and when the heat exchange tube is used, the connecting pipe 11 is communicated with the inside of the heat exchange tube 100 through the communication hole 111.
Referring to fig. 1, a first stopper 12 is fixedly connected to one end of a connection pipe 11, and a pressure passage communicating with the inside of the connection pipe is opened in the middle of the first stopper 12.
The first sealing ring 13 is sleeved on the first stop block 12, and the first sealing ring 13 is located between the first stop block 12 and the heat exchange tube 100.
Referring to fig. 1, a first pressing ring 14 is sleeved on the first stop block 12, and the first pressing ring 14 is used for pressing the first sealing ring 13 onto the first stop block 12.
The first nut 15 is screwed on the first stop block 12, specifically, an external thread is formed on the outer wall of the first stop block 12, and the first nut 15 is screwed with the external thread on the first stop block 12. In use, the first compression ring 14 is pressed against the first sealing ring 13 by screwing the first nut 15.
Referring to fig. 1, the pressure gauge 16 is screwed with the first stopper 12, and in particular, the pressure gauge 16 is screwed with the external thread of the first stopper 12.
The connector 17 is fixed to the other end of the connecting pipe 11, and the second stop 18 is detachably and fixedly connected to the connector 17, where the detachable and fixedly connected includes, but is not limited to, plugging, clamping, etc., and in this embodiment, the second stop 18 and the connector 17 adopt a plugging manner.
Referring to fig. 2, in other embodiments, the connector 17 may also be integrally provided or formed with the second stop 18.
Referring to fig. 1, the second sealing ring 19 is sleeved on the second stop block 18, and the second sealing ring 19 is located between the heat exchange tube 100 and the second stop block 18.
The second pressing ring 20 is sleeved on the second stop block 18, and the second pressing ring 20 is used for pressing the second sealing ring 19 onto the second stop block 18.
Referring to fig. 1, the second nut 21 is screwed to the second stopper 18, specifically, an external thread is provided on an outer wall of the second stopper 18, and the second nut 21 is screwed to the external thread of the second stopper 18. In use, the second compression ring 20 is pressed against the second sealing ring 19 by screwing the second nut 21.
During installation, the connecting pipe 11 is firstly placed in the heat exchange pipe 100, then the first stop block 12 and the connecting head 17 are respectively installed and fixed at two ends of the connecting pipe 11, then the first sealing ring 13 and the first pressing ring 14 are sleeved on the first stop block 12 in sequence, then the first nut 15 is screwed on the external thread of the first stop block 12, and then the pressure gauge 16 is installed on the external thread of the first stop block 12; simultaneously, the second stop block 18 is spliced with the connector 17, then the second sealing ring 19 and the second pressing ring 20 are sleeved on the second stop block 18 in sequence, and finally the second nut 21 is screwed on the external thread of the second stop block 18.
When in use, the first nut 15 and the second nut 21 are respectively screwed, so that the first pressing ring 14 and the second pressing ring 20 respectively form extrusion on the first sealing ring 13 and the second sealing ring 19, and the outer walls of the first sealing ring 13 and the second sealing ring 19 are abutted against the inner wall of the heat exchange tube 100; then water is injected into the heat exchange tube 100 and pressurized, water in the heat exchange tube 100 enters the inside of the connecting tube 11 through the communication hole 111 on the connecting tube 11, then water in the connecting tube 11 enters the pressure gauge 16 through the pressure channel on the first stop block 12, and then the pressure gauge 16 performs pressure measurement on the water in the heat exchange tube 100. In the process of injecting water into the inner wall of the heat exchange tube 100 and pressurizing, pressurized water extrudes the first stop block 12 and the second stop block 18, then the first stop block 12 and the second stop block 18 respectively move slightly to the sides far away from each other, namely, the first stop block 12 extrudes the first sealing ring 13, and the second stop block 18 extrudes the second sealing ring 19, so that the sealing of the first sealing ring 13 and the second sealing ring 19 to the heat exchange tube 100 is further improved, the pressure measurement of water in the heat exchange tube 100 is facilitated, and meanwhile, the stability of the pressure test tool in the heat exchange tube 100 is improved.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (4)
1. An interior expansion heat exchange tube pressure testing frock, its characterized in that includes:
The connecting pipe is provided with a communication hole on the pipe wall and is positioned in the heat exchange pipe;
The first stop block is connected with one end of the connecting pipe and provided with a pressure channel in the middle;
The first sealing ring is sleeved on the first stop block;
the first compression ring is sleeved on the first stop block and is abutted with the first sealing ring;
The first nut is in threaded connection with the first stop block and is used for propping against the first compression ring;
The pressure gauge is in threaded connection with the first stop block;
the second stop block is connected with the connecting pipe;
the second sealing ring is sleeved on the second stop block;
The second compression ring is sleeved on the second stop block and is abutted with the second sealing ring; and
The second nut is connected to the second stop block in a threaded manner; for abutting against the second pressure ring.
2. The pressure testing tool for the internal expansion heat exchange tube of claim 1, further comprising a connector, wherein two ends of the connector are respectively connected with the connecting tube and the second stop block.
3. The pressure testing tool for the internal expansion heat exchange tube according to claim 1, wherein external threads are formed on the outer wall of the first stop block, and the first nut is in threaded connection with the external threads of the first stop block.
4. The pressure testing tool for the internal expansion heat exchange tube of claim 1, wherein the pressure gauge is in threaded connection with the external threads of the first stop block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322970247.3U CN221007125U (en) | 2023-11-02 | 2023-11-02 | Internal expansion type heat exchange tube pressure test tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322970247.3U CN221007125U (en) | 2023-11-02 | 2023-11-02 | Internal expansion type heat exchange tube pressure test tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221007125U true CN221007125U (en) | 2024-05-24 |
Family
ID=91127995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322970247.3U Active CN221007125U (en) | 2023-11-02 | 2023-11-02 | Internal expansion type heat exchange tube pressure test tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221007125U (en) |
-
2023
- 2023-11-02 CN CN202322970247.3U patent/CN221007125U/en active Active
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| GR01 | Patent grant |