CN220819360U - Expansion joint strength verification device - Google Patents
Expansion joint strength verification device Download PDFInfo
- Publication number
- CN220819360U CN220819360U CN202322646741.4U CN202322646741U CN220819360U CN 220819360 U CN220819360 U CN 220819360U CN 202322646741 U CN202322646741 U CN 202322646741U CN 220819360 U CN220819360 U CN 220819360U
- Authority
- CN
- China
- Prior art keywords
- tube plate
- expansion joint
- end cover
- tube
- joint strength
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Links
- 238000012795 verification Methods 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 238000012360 testing method Methods 0.000 abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012854 evaluation process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model discloses an expansion joint strength verification device, which comprises: the tube side assembly comprises a first tube plate and a second tube plate, a cylinder body is connected between the first tube plate and the second tube plate, and a first outlet is formed in the cylinder body; the shell side assembly comprises a first end cover and a second end cover, the first end cover is connected with the first tube plate through a first bolt, the second end cover is connected with the second tube plate through a second bolt, and a second outlet is formed in the first end cover or the second end cover. The utility model can effectively verify the effectiveness of the expansion joint and the sealing test performance of the expansion joint strength.
Description
Technical Field
The utility model relates to expansion joint equipment, in particular to an expansion joint strength verification device.
Background
In the expansion joint process of the heat exchange tubes of the condenser, proper thinning rate needs to be mastered, and the traditional expansion joint process is evaluated by adopting one tube plate and a plurality of heat exchange tubes to perform an expansion joint test, so that the expansion joint thinning rate under different torques is calculated to guide production expansion joint. But can not detect and verify the strength sealing performance after expansion, the sealing performance has no data support, the hidden trouble of the sealing performance of the quality of the expansion joint in the later period is large, and the leakage maintenance after expansion is also very troublesome. Therefore, in order to find a suitable expansion joint thinning rate so as to ensure that the sealing performance is good under the condition of meeting the strength test, the sealing performance in the expansion joint evaluation process needs to be detected and verified.
Disclosure of utility model
The utility model aims to: the utility model aims to provide an expansion joint strength verification device which can effectively verify the effectiveness of expansion joint and the sealing test performance of strength.
The technical scheme is as follows: the utility model relates to an expansion joint strength verification device, which comprises: the tube side assembly comprises a first tube plate and a second tube plate, a cylinder body is connected between the first tube plate and the second tube plate, and a first outlet is formed in the cylinder body;
The shell side assembly comprises a first end cover and a second end cover, the first end cover is connected with the first tube plate through a first bolt, the second end cover is connected with the second tube plate through a second bolt, and a second outlet is formed in the first end cover or the second end cover.
As a preferable structure of the utility model, a first sealing gasket is arranged between the first end cover and the first tube plate, and a second sealing gasket is arranged between the second end cover and the second tube plate.
As a preferable structure of the present utility model, the first end cover includes a first cover body, a plurality of first connection portions are uniformly provided on the first cover body in a circumferential direction, and a screw hole for passing through the first bolt is provided on each of the first connection portions.
As a preferable configuration of the present utility model, the first cover body has the same cross-sectional dimension as the cylinder body.
As a preferable structure of the present utility model, the first cover body has a circular arc-shaped cross section.
As a preferable structure of the utility model, the second end cover comprises a second cover body, a plurality of second connecting parts are uniformly arranged on the second cover body along the circumferential direction, and each second connecting part is provided with a threaded hole for the second bolt to pass through.
As a preferable structure of the present utility model, the second cover has the same cross-sectional dimension as the cylinder.
As a preferable structure of the present utility model, the second cover body has a circular arc shape in cross section.
As a preferable structure of the utility model, a plurality of holes are uniformly arranged on two opposite side surfaces of the first tube plate and the second tube plate, a heat exchange tube is connected between a pair of holes corresponding to the two sides, and the other side surfaces of the first tube plate and the second tube plate are sealing surfaces.
As a preferable structure of the present utility model, screw joints are provided on the first outlet and the second outlet.
The beneficial effects are that: (1) According to the expansion joint strength verification device, after the threaded joint of the first outlet is filled with water, the threaded joint is pressurized and linked with the pressure gauge, and after the threaded joint is added to a certain pressure, whether the expansion joint assessment test is effective or not is judged by observing whether leakage exists in the sealing surface of each group of expansion joint copper pipes of the first tube plate and the second tube plate. (2) According to the utility model, the two end covers are connected with the two tube plates in a sealing way, cavities are formed at the two ends, the pressure gauge is pressurized and linked through the second outlet threaded joint on the end cover, the pressure is maintained for a certain period of time after the pressure gauge is added, and whether the expansion joint assessment test is successful is verified according to whether the pressure gauge changes. (3) The utility model has simple structure and convenient use, and the end cover is connected with the tube plate through the bolts so as to be convenient to install and detach.
Drawings
FIG. 1 is a schematic diagram of an expansion joint strength verification device;
FIG. 2 is a side view of a tube side assembly;
FIG. 3 is an elevation view of a first tube sheet and a second tube sheet;
FIG. 4 is a side view of the first end cap;
FIG. 5 is a side view of the second end cap;
Fig. 6 is a schematic view of two sealing gaskets.
Detailed Description
The technical scheme of the utility model is further described below with reference to the accompanying drawings.
Referring to fig. 1, an expansion joint strength verifying apparatus includes: the tube side assembly 10 and the shell side assembly 20, the tube side assembly 10 comprises a first tube plate 11 and a second tube plate 12, a cylinder 13 is connected between the first tube plate 11 and the second tube plate 12, and a first outlet 15 is formed in the cylinder 13; the shell side assembly 20 comprises a first end cover 21 and a second end cover 25, wherein the first end cover 21 is connected with the first tube plate 11 through a first bolt 22, the second end cover 25 is connected with the second tube plate 12 through a second bolt 26, and a second outlet 24 is formed in the first end cover 21 or the second end cover 25. A first sealing gasket 23 is arranged between the first end cover 21 and the first tube plate 11, and a second sealing gasket 27 is arranged between the second end cover 25 and the second tube plate 12. Alternatively, the first tube sheet is also referred to as a left tube sheet and the second tube sheet is also referred to as a right tube sheet. Alternatively, the first end cap is also referred to as a left end cap and the second end cap is also referred to as a right end cap. Threaded joints are provided on both the first outlet 15 and the second outlet 24.
Referring to fig. 2, the tube side assembly 10 includes a plurality of heat exchange tubes 14 within a cylinder 13. In one embodiment, the first tube plate 11, the second tube plate 12 are welded to the cylinder 13, and the threaded joint of the first outlet 15 is welded to the cylinder 13. The first tube plate 11, the second tube plate 12, the cylinder 13 and the heat exchange tube 14 form a tube bundle assembly of the condenser heat exchange tube, and two ends of the heat exchange tube 14 are respectively connected with the tube plates; the expansion torque at the two ends of the heat exchange tube 14 is different. According to the utility model, different torque expansion joints are carried out on the heat exchange tube groups, so that different thinning rates of each group are obtained. The threaded joint of the first outlet 15 is pressurized after full water, and is connected with a pressure gauge, and after the pressure gauge is pressurized, whether the expansion joint assessment test is effective or not is judged by observing whether leakage exists in the sealing surface after each group of expansion joint copper pipes of the first tube plate and the second tube plate.
Referring to fig. 1 and 3, the first tube plate 11 and the second tube plate 12 are circular in shape, a plurality of first holes 111 are uniformly formed in a central area on the first tube plate 11, a plurality of second holes 121 are uniformly formed in a central area on the second tube plate 12, a first tube plate surface provided with the first holes 111 is opposite to a second tube plate surface provided with the second holes 121, a heat exchange tube 14 is connected between a pair of corresponding holes 111 and 121 on two sides, and the other side surfaces of the first tube plate 11 and the second tube plate 12 are sealing surfaces. That is, the first and second apertures 111, 121 are not disposed through the tubesheet.
With continued reference to fig. 1 and 3, a plurality of third holes 112 are uniformly provided around the periphery of the central region of the first tube sheet 11, a plurality of fourth holes 122 are uniformly provided around the periphery of the central region of the second tube sheet 12, and the first tube sheet surface where the third holes 112 are provided is also opposite to the second tube sheet surface where the fourth holes 122 are provided. The third and fourth holes 112 and 122 are threaded holes. The third holes 112 are adapted to mate with the first bolts 22 to connect the first end cap 21 to the first tube sheet 11. The fourth holes 122 are adapted to mate with the second bolts 26 to connect the second end cap 25 to the second tubesheet 12.
Referring to fig. 4, the first end cap 21 includes a first cap body 211, a cross section of the first cap body 211 on a plane formed by an X axis and a Y axis is arc-shaped, an overall structure of the first end cap 21 is hemispherical or semi-ellipsoidal, and can be adjusted according to actual needs, a diameter of a cross section of the first end cap 21, which contacts with the first tube plate 11, is the same as a diameter of the cylinder 13, and a plurality of first connection portions 212 are uniformly arranged on the circular first cap body 211 along a circumferential direction. Fig. 4 shows a side surface of the first end cap 21, and thus shows two upper and lower first connection portions 212. The first connection portion 212 extends in the axial direction of the circular cap body. Each first connecting portion 212 is provided with a threaded hole for cooperation with the first bolt 22, i.e., the first bolt 22 passes through the threaded hole in the first connecting portion 212 and the threaded hole in the first tube plate 11 to connect the first end cap 21 and the first tube plate 11 together. Wherein a first sealing gasket 23 is arranged between the first connection 211 and the first tube sheet 11.
Referring to fig. 5, the second end cover 25 includes a second cover body 251, a cross section of the second cover body 251 on a plane formed by an X axis and a Y axis is arc-shaped, an overall structure of the second end cover 25 is in a hemispherical or semi-ellipsoidal shape, and can be adjusted according to actual needs, a diameter size of a cross section of the second end cover 25, which is in contact with the second tube plate 12, is the same, and a plurality of second connection portions 252 are uniformly arranged on the circular second cover body 251 along a circumferential direction. Fig. 5 shows the side of the second end cap 25, and thus shows the upper and lower second connection portions 252. The second connecting portion 252 extends in the axial direction of the circular cap body. Each second connection portion 252 is provided with a threaded hole for mating with the second bolt 26, i.e., the second bolt 26 passes through the threaded hole in the second connection portion 252 and the threaded hole in the second tube sheet 12 to connect the second end cap 25 and the second tube sheet 12 together. Wherein a second sealing gasket 27 is arranged between the second connection 251 and the second tube sheet 12. The first and second sealing gaskets are shown in fig. 6.
When the expansion joint strength verifying device is used, the heat exchange tubes are connected between the tube pass evaluating part, the first tube plate and the second tube plate, and different torque expansion joints can be carried out on the heat exchange tubes in multiple groups, so that different thinning rates of each group are obtained. The threaded joint of the first outlet is pressurized after full water and is connected with a pressure gauge, and after the pressure gauge is added to a certain pressure, whether the expansion joint assessment test is effective or not is judged by observing whether leakage exists in the sealing surface after each group of expansion joint copper pipes of the first tube plate and the second tube plate. In the shell side evaluation part, the pressure gauge is pressurized through a second outlet threaded joint on the end cover and linked, the pressure is maintained for a certain period of time, for example, 24 hours after the pressure gauge is added to a certain pressure, and if the pressure gauge is unchanged, the expansion joint evaluation test is successful. The utility model has simple structure, convenient installation and disassembly and good supporting effect on the expansion joint process.
Claims (10)
1. An expansion joint strength verification device, comprising: the tube side assembly (10) and the shell side assembly (20), the tube side assembly (10) comprises a first tube plate (11) and a second tube plate (12), a cylinder body (13) is connected between the first tube plate (11) and the second tube plate (12), and a first outlet (15) is formed in the cylinder body (13);
The shell side assembly (20) comprises a first end cover (21) and a second end cover (25), the first end cover (21) is connected with the first tube plate (11) through a first bolt (22), the second end cover (25) is connected with the second tube plate (12) through a second bolt (26), and a second outlet (24) is formed in the first end cover (21) or the second end cover (25).
2. The expansion joint strength verification device according to claim 1, wherein a first sealing gasket (23) is arranged between the first end cover (21) and the first tube plate (11), and a second sealing gasket (27) is arranged between the second end cover (25) and the second tube plate (12).
3. The expansion joint strength verification device according to claim 1, wherein the first end cover (21) comprises a first cover body (211), a plurality of first connecting portions (212) are uniformly arranged on the first cover body (211) along the circumferential direction, and threaded holes for the first bolts (22) to pass through are formed in each first connecting portion (212).
4. A device for verifying the expansion joint strength according to claim 3, wherein the first cover (211) has the same cross-sectional size as the cylinder (13).
5. A device for verifying the expansion joint strength according to claim 3, wherein the first cover (211) has a circular arc-shaped cross section.
6. The expansion joint strength verification device according to claim 1, wherein the second end cover (25) comprises a second cover body (251), a plurality of second connecting portions (252) are uniformly arranged on the second cover body (251) along the circumferential direction, and threaded holes for the second bolts (26) to pass through are formed in each second connecting portion (252).
7. The expansion joint strength verifying apparatus according to claim 6, wherein a cross-sectional dimension of the second cover (251) is the same as a cross-sectional dimension of the cylinder (13).
8. The expansion strength verifying apparatus of claim 6, wherein the second cover (251) has a circular arc shape in cross section.
9. The expansion joint strength verification device according to claim 1, wherein a plurality of holes are uniformly formed in two opposite side surfaces of the first tube plate (11) and the second tube plate (12), a heat exchange tube is connected between a pair of holes corresponding to the two sides, and the other side surfaces of the first tube plate (11) and the second tube plate (12) are sealing surfaces.
10. The expansion joint strength verifying apparatus according to claim 1, wherein a threaded joint is provided on the first outlet (15) and the second outlet (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322646741.4U CN220819360U (en) | 2023-09-28 | 2023-09-28 | Expansion joint strength verification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322646741.4U CN220819360U (en) | 2023-09-28 | 2023-09-28 | Expansion joint strength verification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220819360U true CN220819360U (en) | 2024-04-19 |
Family
ID=90706108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322646741.4U Active CN220819360U (en) | 2023-09-28 | 2023-09-28 | Expansion joint strength verification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220819360U (en) |
-
2023
- 2023-09-28 CN CN202322646741.4U patent/CN220819360U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |