CN220472957U - Pressure test tool for floating head type heat exchanger - Google Patents
Pressure test tool for floating head type heat exchanger Download PDFInfo
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- CN220472957U CN220472957U CN202322119180.2U CN202322119180U CN220472957U CN 220472957 U CN220472957 U CN 220472957U CN 202322119180 U CN202322119180 U CN 202322119180U CN 220472957 U CN220472957 U CN 220472957U
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- 238000012360 testing method Methods 0.000 title claims abstract description 49
- 238000007789 sealing Methods 0.000 claims abstract description 72
- 238000007906 compression Methods 0.000 claims abstract description 24
- 230000006835 compression Effects 0.000 claims abstract description 23
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 238000003466 welding Methods 0.000 claims description 9
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 2
- 210000003625 skull Anatomy 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a pressure test tool for a floating head type heat exchanger, which belongs to the technical field of pressure test of floating head type heat exchangers and comprises a cylinder, wherein a first flange and a second flange are respectively arranged at two ends of the cylinder, and the first flange is hermetically arranged on an outer head cover side flange through a sealing device; the floating tube plate of the heat exchanger is sleeved in the cylinder, and one end of the outer side surface of the floating tube plate is provided with a compression ring; a second sealing ring is arranged between the floating tube plate and the compression ring; the inner peripheral side of the second flange protrudes out of the inner wall of the cylinder body in the radial direction to form an inner protruding part, a plurality of adjusting bolts are connected to the inner protruding part in a threaded manner, one end of each adjusting bolt penetrates through the second flange to extend into the cylinder body, and the compression ring is tightly pressed on the floating tube plate; the utility model can realize the pressure test of heat exchangers with the same nominal diameter, different pressure grades and different lengths of the flanges of the floating pipe plate extending out of the outer head cover, and improves the universality.
Description
Technical Field
The utility model relates to the technical field of pressure testing of floating head type heat exchangers, in particular to a pressure testing tool of a floating head type heat exchanger.
Background
The traditional floating head type heat exchanger pressure test tool has the following conditions that firstly, a conical cylinder body is utilized to seal and weld an outer head cover side flange and a floating tube plate, after the pressure test is finished, the conical cylinder body is cut off, and connecting welding seams on the outer head cover side flange and the floating tube plate are ground flat, so that the workload of welding and cutting the conical cylinder body and grinding the welding seams is very large, and the welding seams between the floating tube plate and the heat exchanger are easily caused to be pulled apart due to uneven stress and heating in the welding, cutting and grinding the conical cylinder body and the welding seams, thereby influencing the product quality; secondly, the partial pressure test tool is sealed by virtue of a stuffing box, the test pressure cannot exceed 2.5MPa, and once the test pressure is more than 2.5MPa, the tool cannot be used, the test pressure born by the pressure test tool is low, and the working condition of high pressure test cannot be met; third, traditional pressure testing frock can not reuse to the heat exchanger that same nominal diameter, different pressure grades, floating tube board stretch out outer skull side flange different length, can not realize the switching of outer skull side flange department different gaskets and use, and the commonality is poor.
In summary, it is clear that the prior art has inconvenience and defects in practical use, so that improvement is needed.
Disclosure of Invention
In order to solve the technical problems or at least partially solve the technical problems, the utility model provides a pressure test tool for a floating head type heat exchanger, which can realize pressure test on heat exchangers with the same nominal diameter, different pressure grades and different lengths of flanges of the floating pipe plate extending out of the outer head cover, and improves the universality.
In order to solve the technical problems, the utility model adopts the following technical scheme: the floating head type heat exchanger pressure test tool comprises a cylinder body, wherein a first flange and a second flange are respectively arranged at two ends of the cylinder body, and the first flange is mounted on an outer head cover side flange in a sealing manner through a sealing device;
the floating tube plate of the heat exchanger is sleeved in the cylinder, and one end of the outer side surface of the floating tube plate is provided with a compression ring; a second sealing ring is arranged between the floating tube plate and the compression ring; the inner peripheral side of the second flange protrudes out of the inner wall of the cylinder body in the radial direction to form an inner protruding portion, a plurality of adjusting bolts are connected to the inner protruding portion in a threaded mode, one end of each adjusting bolt penetrates through the second flange to extend into the cylinder body, and the compression ring is tightly pressed on the floating tube plate.
Further, the sealing device adopts a first sealing ring, the first sealing ring is an O-shaped sealing ring, and the first sealing ring is made of neoprene;
the flange face of the first flange is provided with a groove, and the first sealing ring is arranged in the groove.
Further, the sealing device is a flange gasket, and the flange gasket is a winding gasket;
the flange face of the first flange is of a protruding face structure, and the flange gasket is arranged between the outer head cover side flange and the protruding face structure of the first flange.
Further, a reinforcing rib plate is arranged between the first flange and the cylinder body, and the first flange and the second flange are connected with the cylinder body in a welding mode.
Further, the second sealing ring is an O-shaped sealing ring, and the second sealing ring is made of neoprene; the second sealing ring is arranged at the outer edges of the floating tube plate and the compression ring, and the outer peripheral surface of the second sealing ring is in contact with the inner wall of the cylinder body.
Further, a sealing groove is formed between the adjacent surfaces of the floating tube plate and the pressing ring, and the second sealing ring is arranged in the sealing groove.
Further, a plurality of groups of bolt holes are formed in the first flange, and each group of bolt holes corresponds to one pressure testing pressure grade.
Further, the first sealing ring is arranged close to the inner diameter of the shell side cylinder.
Further, the plurality of adjusting bolts are evenly arranged at intervals along the circumferential direction.
Further, the first flange is connected with an outer head cover side flange of the heat exchanger through bolts.
After the technical scheme is adopted, compared with the prior art, the utility model has the following advantages:
1. according to the utility model, the cylinder body is connected with the second flange in a welding way, the adjusting bolt is arranged on the inner convex part of the second flange protruding out of the inner wall of the cylinder body, the length of the compression ring is reduced by arranging the adjusting bolt, the matching difficulty is reduced, the pressure test of the heat exchangers with different distances C can be adapted by adjusting the adjusting bolt, and the universality is improved.
2. According to the utility model, the reinforcing rib plate is designed at the first flange and the barrel, so that the thickness of the first flange can be effectively reduced, and the cost is reduced.
3. According to the utility model, the first flange sealing surface can be provided with the groove, the first sealing ring is arranged in the groove, the first sealing ring is an O-shaped sealing ring, the material is neoprene, the sealing ring can be reused, and the cost is reduced; the first flange sealing surface can also be provided with a protruding surface structure, and the winding gasket is used, so that the safety and reliability can be realized; the two sealing structures can be suitable for different air pressure and water pressure tests.
The utility model will now be described in detail with reference to the drawings and examples.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
In the drawing the view of the figure,
the device comprises a first flange, a 2-cylinder, a 3-second flange, a 4-compression ring, 5-adjusting bolts, 6-reinforcing rib plates, 7-first sealing rings, 8-second sealing rings, 9-flange gaskets, 10-outer head cover side flanges, 11-shell side cylinders and 12-floating tube plates.
Detailed Description
For a clearer understanding of technical features, objects, and effects of the present utility model, a specific embodiment of the present utility model will be described with reference to the accompanying drawings.
Examples
As shown in fig. 1, the utility model provides a pressure test tool for a floating head type heat exchanger, because the distance C from a floating tube plate 12 to a sealing surface of an outer head cover side flange 10 is not a constant value when the floating head type heat exchanger is designed, and the distance C is different when the floating head type heat exchanger is designed, a plurality of pressure test tools cannot be used generally, and the depth of an inner cavity of the pressure test tool is designed to be 300mm or longer (according to requirements).
The pressure test tool comprises a first flange 1, a cylinder 2, a second flange 3 and a compression ring 4, wherein the first flange 1, the cylinder 2 and the second flange 3 are coaxially arranged; the first flange 1 and the second flange 3 are respectively welded and fixed at two ends of the cylinder 2, and the first flange 1 is connected with an outer head cover side flange 10 of the heat exchanger through bolts.
A sealing device for sealing is arranged between the first flange 1 and the outer head cover side flange 10, when the floating head type heat exchanger adopts a hydraulic test, the sealing device adopts a first sealing ring 7, the first sealing ring 7 is an O-shaped sealing ring, and the first sealing ring 7 is made of neoprene and can be reused; a groove is formed in the flange surface of the first flange 1, and the first sealing ring 7 is arranged in the groove; the first sealing ring 7 is arranged near the inner diameter of the shell-side cylinder 21 so as to reduce the axial force of the inner pressure acting on the end face of the first flange 1, thereby reducing the thickness of the first flange 1.
When the heat exchanger adopts an air pressure test, the sealing device is a flange gasket 9 because the air pressure test is dangerous, and the flange gasket 9 is a winding gasket, so that the heat exchanger is safe and reliable; the flange surface of the first flange 1 is of a protruding surface structure, and the flange gasket 9 is provided with an outer head cover side flange 10 and the protruding surface structure of the first flange 1 to achieve the sealing purpose.
Further, the first flange 1 is provided with a plurality of groups of bolt holes, and each group of bolt holes corresponds to one pressure testing pressure grade so as to meet the pressure testing of different pressure grades of the outer head cover side flange 10. The pressure bearing of the pressure test fixture is 1/5-1/3 of that of the original seal head, the number of corresponding bolt holes can be reduced to 1/5-1/3 of that of the original seal head, a plurality of groups of bolt holes can be arranged separately, and the fact that a plurality of groups of bolt holes are arranged on the first flange 1 is realized.
The reinforcing rib plate 6 is arranged between the first flange 1 and the cylinder body 2, so that the thickness of the first flange 1 can be effectively reduced.
The floating tube plate 12 of the heat exchanger is sleeved in the cylinder 2, and the outer peripheral side of the floating tube plate 12 is attached to the inside of the cylinder 2.
The compression ring 4 is coaxially sleeved in the cylinder 2, and the compression ring 4 is arranged at one end of the outer side surface of the floating tube plate 12; the outer wall of the compression ring 5 is in contact with the inner wall of the cylinder 2, and the compression ring 5 can axially move in the cylinder 2.
A second sealing ring 8 is arranged between the outer side surface of the floating tube plate 12 and the compression ring 4, and the second sealing ring 8 is an O-shaped sealing ring; the second sealing ring 8 is arranged at the outer edges of the floating tube plate 12 and the compression ring 4, and the outer peripheral surface of the second sealing ring 8 is in contact with the inner wall of the cylinder 2 to form a seal.
Further, a sealing groove is formed between the floating tube plate 12 and the adjacent surface of the compression ring 4, and the second sealing ring 8 is arranged in the sealing groove to realize sealing. The second sealing ring 8 is made of neoprene and can be reused.
The compression ring 4 is compressed on the floating tube plate 12 through a plurality of adjusting bolts 5 so as to realize the sealing effect of the second sealing ring 8. Specifically, the inner circumference side of the second flange 3 protrudes out of the inner wall of the cylinder 2 along the radial direction to form an inner protruding part, a plurality of adjusting bolts 5 are in threaded connection with the inner protruding part of the second flange 3, the adjusting bolts 5 are uniformly arranged at intervals along the circumferential direction, one end of each adjusting bolt 5 penetrates through the second flange 3 to extend into the cylinder 2, and the end part of each adjusting bolt 5 is tightly propped against the compression ring 4.
The adjusting bolt 5 passes through the second flange 3 and stretches into in the barrel 2 to compress tightly on the clamping ring 4, realize the seal of pressure testing frock, the length of clamping ring 4 can be reduced in the setting of adjusting bolt 5, has reduced the cooperation degree of difficulty, can adapt to the pressure test of different distance C heat exchangers through adjusting bolt 5, improves the commonality.
The working process of the utility model comprises the following steps:
the pressure test fixture comprises a pressure test device, a pressure test device and a pressure test device.
The foregoing is illustrative of the best mode of carrying out the utility model, and is not presented in any detail as is known to those of ordinary skill in the art. The protection scope of the utility model is defined by the claims, and any equivalent transformation based on the technical teaching of the utility model is also within the protection scope of the utility model.
Claims (10)
1. The floating head type heat exchanger pressure test tool is characterized by comprising a cylinder body (2), wherein a first flange (1) and a second flange (3) are respectively arranged at two ends of the cylinder body (2), and the first flange (1) is hermetically arranged on an outer head cover side flange (10) through a sealing device;
the floating tube plate (12) of the heat exchanger is sleeved in the cylinder body (2), and one end of the outer side surface of the floating tube plate (12) is provided with a compression ring (4); a second sealing ring (8) is arranged between the floating tube plate (12) and the compression ring (4); the inner peripheral side of the second flange (3) radially protrudes out of the inner wall of the cylinder body (2) to form an inner protruding portion, a plurality of adjusting bolts (5) are screwed on the inner protruding portion, one end of each adjusting bolt (5) penetrates through the second flange (3) to extend into the cylinder body (2), and the compression ring (4) is tightly propped against the floating tube plate (12).
2. The floating head type heat exchanger pressure test fixture according to claim 1, wherein the sealing device is a first sealing ring (7), the first sealing ring (7) is an O-shaped sealing ring, and the first sealing ring (7) is made of neoprene;
the flange face of the first flange (1) is provided with a groove, and the first sealing ring (7) is arranged in the groove.
3. The floating head heat exchanger pressure test fixture according to claim 1, wherein the sealing device is a flange gasket (9), and the flange gasket (9) is a winding gasket;
the flange surface of the first flange (1) is of a protruding surface structure, and the flange gasket (9) is arranged between the outer head cover side flange (10) and the protruding surface structure of the first flange (1).
4. The floating head type heat exchanger pressure test fixture according to claim 1, wherein a reinforcing rib plate (6) is arranged between the first flange (1) and the cylinder body (2), and the first flange (1) and the second flange (3) are connected with the cylinder body (2) in a welding mode.
5. The floating head type heat exchanger pressure test fixture according to claim 1, wherein the second sealing ring (8) is an O-shaped sealing ring, and the second sealing ring (8) is made of neoprene; the second sealing ring (8) is arranged at the outer edges of the floating tube plate (12) and the compression ring (4), and the outer peripheral surface of the second sealing ring (8) is in contact with the inner wall of the cylinder body (2).
6. The floating head type heat exchanger pressure test fixture according to claim 1, wherein a sealing groove is formed between the adjacent surfaces of the floating tube plate (12) and the compression ring (4), and the second sealing ring (8) is arranged in the sealing groove.
7. The floating head type heat exchanger pressure test fixture according to claim 1, wherein a plurality of groups of bolt holes are formed in the first flange (1), and each group of bolt holes corresponds to one pressure test pressure level.
8. A floating head heat exchanger pressure test fixture as claimed in claim 2, characterized in that the first sealing ring (7) is arranged close to the inner diameter of the shell side cylinder (11).
9. The floating head heat exchanger pressure test fixture according to claim 1, wherein the plurality of adjusting bolts (5) are uniformly arranged at intervals along the circumferential direction.
10. A floating head heat exchanger pressure test fixture as claimed in claim 1, characterized in that the first flange (1) is connected with an outer head cover side flange (10) of the heat exchanger by bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322119180.2U CN220472957U (en) | 2023-08-08 | 2023-08-08 | Pressure test tool for floating head type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322119180.2U CN220472957U (en) | 2023-08-08 | 2023-08-08 | Pressure test tool for floating head type heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220472957U true CN220472957U (en) | 2024-02-09 |
Family
ID=89773008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322119180.2U Active CN220472957U (en) | 2023-08-08 | 2023-08-08 | Pressure test tool for floating head type heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220472957U (en) |
-
2023
- 2023-08-08 CN CN202322119180.2U patent/CN220472957U/en active Active
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