CN219714671U - Single tube detection pressing device of tube bundle type heat exchanger - Google Patents
Single tube detection pressing device of tube bundle type heat exchanger Download PDFInfo
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- CN219714671U CN219714671U CN202320762033.4U CN202320762033U CN219714671U CN 219714671 U CN219714671 U CN 219714671U CN 202320762033 U CN202320762033 U CN 202320762033U CN 219714671 U CN219714671 U CN 219714671U
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- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 131
- 230000006835 compression Effects 0.000 claims abstract description 23
- 238000007906 compression Methods 0.000 claims abstract description 23
- 238000012423 maintenance Methods 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a single tube detection pressurizing device of a tube bundle type heat exchanger, which comprises a pressurizing pump, a sealing assembly with holes and a sealing plug assembly; the sealing assembly with the holes and the sealing plug assembly are respectively inserted into two ends of the heat exchange tube, and the other end of the sealing assembly with the holes is connected with the pressurizing pump through a hose; the sealing assembly with the holes comprises a sealing body with the holes, an O-shaped sealing ring, an expansion sleeve and a compression nut, wherein the O-shaped sealing ring, the expansion sleeve and the compression nut are sleeved on the sealing body with the holes; the sealing plug assembly comprises a sealing body, an O-shaped sealing ring, an expansion sleeve and a compression nut, wherein the O-shaped sealing ring, the expansion sleeve and the compression nut are sequentially sleeved on the sealing body; the sealing assembly with the hole and the sealing plug assembly are both bonded and sealed with the inner wall of the U-shaped heat exchange tube by the O-shaped sealing ring, and the expansion sleeve expands the inner wall of the U-shaped heat exchange tube and is locked by the compression nut. The sealing performance of a single U-shaped heat exchange tube in the heat exchanger tube bundle can be detected, so that the maintenance efficiency is improved, and the labor intensity of operators is reduced.
Description
Technical Field
The utility model relates to the technical field of U-shaped tube detection, in particular to a single tube detection pressurizing device of a tube bundle type heat exchanger.
Background
The tube bundle heat exchanger is also called a shell-and-tube heat exchanger, is an important matching component of various mechanical equipment, and is increasingly widely applied along with the continuous development of economy, and consists of a plurality of heat exchanger tube bundles which are formed by a plurality of U-shaped heat exchange tubes; in the use process of the tube bundle heat exchanger, the tube bundle heat exchanger is corroded by various mediums for a long time, and the phenomenon that single tubes are damaged by Xun can possibly occur in a plurality of U-shaped heat exchange tubes forming the heat exchange tube bundle, so that the heat exchange effect is reduced, and the normal operation of other equipment is influenced; because the number of the U-shaped heat exchange tubes forming the tube bundle is numerous, a test device is needed to find the damaged U-shaped heat exchange tubes during maintenance.
The heat exchanger tube bundle hydrostatic test device disclosed in China patent CN 210221710U is characterized in that a flange cover is connected to the end face of a heat exchanger tube plate in a sealing mode and forms a preset space, water can be injected into the heat exchanger tube bundle through a water inlet pipe, meanwhile, the water pressure of the heat exchanger tube bundle can be finished through exhaust of an exhaust pipe, the device cannot realize the pressing test on a single U-shaped heat exchange tube, the damaged U-shaped heat exchange tube cannot be rapidly broken, the maintenance efficiency is low, and the labor intensity of operators is high.
In summary, a device capable of detecting and pressing a single U-shaped heat exchange tube of a tube bundle heat exchanger is developed, so as to improve the maintenance efficiency of the tube bundle of the heat exchanger, and reduce the labor intensity of operators is a subject faced by relevant technicians.
Disclosure of Invention
The utility model aims to provide a single tube detection pressing device for a tube bundle type heat exchanger, which can be used for realizing pressing detection on a single U-shaped heat exchange tube of the tube bundle type heat exchanger, improving the maintenance efficiency of the tube bundle of the heat exchanger and reducing the labor intensity of operators.
The problems of the utility model are solved by the following technical proposal:
a single tube detection pressurizing device of a tube bundle type heat exchanger comprises a pressurizing pump, a sealing assembly with holes and a sealing plug assembly; the sealing assembly with the holes and the sealing plug assembly are respectively inserted into two ends of the heat exchange tube, and the other end of the sealing assembly with the holes is connected with the pressurizing pump through a hose; the sealing assembly with the holes comprises a sealing body with the holes, an O-shaped sealing ring, an expansion sleeve and a compression nut, wherein the O-shaped sealing ring, the expansion sleeve and the compression nut are sleeved on the sealing body with the holes; the sealing plug assembly comprises a sealing body, an O-shaped sealing ring, an expansion sleeve and a compression nut, wherein the O-shaped sealing ring, the expansion sleeve and the compression nut are sequentially sleeved on the sealing body; the sealing assembly with the hole and the sealing plug assembly are both bonded and sealed with the inner wall of the U-shaped heat exchange tube by the O-shaped sealing ring, and the expansion sleeve expands the inner wall of the U-shaped heat exchange tube and is locked by the compression nut.
Above-mentioned tube bundle heat exchanger single tube detects and presses device, the excircle of foraminiferous sealing body and sealing body all is equipped with the seal groove of installation O type sealing washer, and the groove depth of seal groove is less than the diameter of O type sealing washer.
Above-mentioned tube bundle heat exchanger single tube detects presses device, the equal interval equipartition in axial of two terminal surfaces of cover that rises a plurality of open slots, the open slot of different directions is crisscross to be set up, and the length of open slot is greater than half of cover length that rises.
Above-mentioned tube bundle heat exchanger single tube detects and presses device, still be equipped with one section tape taper cylinder on the excircle of foraminiferous sealing body and sealing body, the hole of cover that rises is equipped with the tapering, its tapering and foraminiferous sealing body, sealing body external cone phase-match.
According to the single tube detection pressing device of the tube bundle type heat exchanger, the outer diameter of the O-shaped sealing ring is matched with the inner diameter of the heat exchange tube.
Above-mentioned tube bundle heat exchanger single tube detects and presses device, the hose is equipped with the plug with foraminiferous sealing body link, plug internal diameter and hose and foraminiferous sealing body link external diameter matching connection.
According to the single tube detection pressing device of the tube bundle type heat exchanger, the hose is further provided with the pressure gauge and the stop valve.
Advantageous effects
The utility model provides a U-shaped heat exchange tube detection pressurizing device, which comprises a sealing assembly with holes and a sealing plug assembly, wherein the sealing assembly with holes and the sealing plug assembly are respectively inserted into two ends of a detected U-shaped heat exchange tube, a compression nut is screwed to tightly seal the detected U-shaped heat exchange tube by an expansion sleeve, gas is injected into the U-shaped heat exchange tube through a hose connected with the sealing assembly with holes, and whether the U-shaped heat exchange tube leaks or not is judged according to the reading of a pressure gauge; the novel U-shaped heat exchange tube can be inspected one by one, and the tightness of a single U-shaped heat exchange tube in a heat exchanger tube bundle can be detected, so that the maintenance efficiency is improved, and the labor intensity of operators is reduced.
Drawings
The utility model is described in further detail below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic illustration of the construction of the present use of the novel perforated seal assembly;
FIG. 3 is a left side view of FIG. 2;
FIG. 4 is a schematic structural view of the seal plug assembly of the present utility model;
fig. 5 is a left side view of fig. 4.
The reference numerals in the drawings are respectively as follows: 1. the sealing assembly with holes, 2, the sealing plug assembly, 3, U-shaped heat exchange tubes, 4, a hose, 5, a pressurizing pump, 6, an O-shaped sealing ring, 7, an expansion sleeve, 8, a compression nut, 11, a sealing body with holes, 12, a through hole, 13, a plug, 14, a pressure gauge, 15, a stop valve, 21, a sealing body, 71 and an open slot.
Detailed Description
Referring to fig. 1, 2 and 4, a single tube detection pressurizing device of a tube bundle type heat exchanger comprises a pressurizing pump 5, a sealing assembly 1 with holes and a sealing plug assembly 2; the sealing assembly 1 with holes and the sealing plug assembly 2 with holes are respectively inserted into two ends of the heat exchange tube 3, and the other end of the sealing assembly 1 with holes is connected with the pressurizing pump 5 through the hose 4; the sealing assembly 1 with holes comprises a sealing body 11 with holes, an O-shaped sealing ring 6, a swelling sleeve 7 and a compression nut 8, wherein the O-shaped sealing ring 6, the swelling sleeve 7 and the compression nut 8 are sleeved on the sealing body 11 with holes; the sealing plug assembly 2 comprises a sealing body 21, an O-shaped sealing ring 6, an expansion sleeve 7 and a compression nut 8, wherein the O-shaped sealing ring 6, the expansion sleeve 7 and the compression nut 8 are sequentially sleeved on the sealing body 21; the sealing assembly 1 with the holes and the sealing plug assembly 2 are respectively bonded and sealed with the inner wall of the U-shaped heat exchange tube 3 by the O-shaped sealing ring 6, and the inner wall of the U-shaped heat exchange tube 3 is tightly tensioned by the tensioning sleeve 7 and locked by the compression nut 8. During detection, the sealing assembly with holes and the sealing plug assembly are respectively inserted into two ends of the U-shaped heat exchange tube to be detected, the U-shaped heat exchange tube is sealed by the O-shaped sealing ring, the expansion sleeve is expanded to lock the U-shaped heat exchange tube by screwing the compression nut, the sealing plug assembly seals and locks one end of the U-shaped heat exchange tube, gas is injected into the U-shaped heat exchange tube through a hose connected with the sealing assembly with holes, the pressure reaches a specified value, the stop valve is closed, and the sealing performance of the U-shaped heat exchange tube can be judged by judging whether the reading of the pressure gauge is stable or not.
Referring to fig. 2 and 4, the outer circles of the sealing body 11 and the sealing body 21 with holes are respectively provided with a sealing groove for installing the O-shaped sealing ring 6, and the depth of the sealing groove is smaller than the diameter of the O-shaped sealing ring 6. The O-shaped sealing ring is in sealing contact with the inner wall of the U-shaped heat exchange tube to realize sealing.
Referring to fig. 2 and 4, a plurality of open slots 71 are uniformly distributed on two end surfaces of the expansion sleeve 7 along the axial direction at intervals, the open slots 71 in different directions are staggered, and the length of the open slots 71 is greater than half of the length of the expansion sleeve 7. The expansion sleeve is convenient for the whole expansion without breaking.
Referring to fig. 2 and 4, the outer circles of the sealing body 11 and the sealing body 21 with holes are further provided with a section of tapered cylinder, and the inner hole of the expansion sleeve 7 is provided with a taper, and the taper of the taper is matched with the outer tapers of the sealing body 11 and the sealing body 21 with holes. The inner hole of the expansion sleeve is enlarged or reduced along with the tapered surfaces on the outer circles of the sealing body with holes so as to tightly expand the inner wall of the U-shaped heat exchange tube.
Referring to fig. 1, the outer diameter of the O-ring 6 is matched with the inner diameter of the heat exchange tube 3. The O-shaped sealing ring is ensured to seal the U-shaped heat exchange tube.
Referring to fig. 1, a plug 13 is arranged at the connection end of the hose 4 and the perforated sealing body 11, and the inner diameter of the plug 13 is connected with the outer diameter of the connection end of the hose 4 and the perforated sealing body 11 in a matching way. The connection between the hose and the connecting end of the sealing body is ensured to be firm.
Referring to fig. 1, the hose 4 is further provided with a pressure gauge 14 and a stop valve 15. And whether the tightness of the tested U-shaped heat exchange tube is good or not is conveniently confirmed.
Claims (7)
1. The single tube detection pressing device of the tube bundle heat exchanger is characterized by comprising a pressing pump (5), a sealing assembly (1) with holes and a sealing plug assembly (2); the sealing assembly (1) with holes and the sealing plug assembly (2) are respectively inserted into two ends of the U-shaped heat exchange tube (3), and the other end of the sealing assembly (1) with holes is connected with the pressurizing pump (5) through the hose (4); the sealing assembly with holes (1) comprises a sealing body with holes (11), an O-shaped sealing ring (6), an expansion sleeve (7) and a compression nut (8), wherein the O-shaped sealing ring (6), the expansion sleeve (7) and the compression nut (8) are sleeved on the sealing body with holes (11); the sealing plug assembly (2) comprises a sealing body (21), an O-shaped sealing ring (6), an expansion sleeve (7) and a compression nut (8), wherein the O-shaped sealing ring (6), the expansion sleeve (7) and the compression nut (8) are sequentially sleeved on the sealing body (21); the sealing assembly (1) with the holes and the sealing plug assembly (2) are respectively bonded and sealed with the inner wall of the U-shaped heat exchange tube (3) by an O-shaped sealing ring (6), and the inner wall of the U-shaped heat exchange tube (3) is tightly tensioned by a tensioning sleeve (7) and locked by a compression nut (8).
2. The single tube detection pressurizing device of the tube bundle type heat exchanger according to claim 1, wherein sealing grooves for installing the O-shaped sealing rings (6) are formed in the outer circles of the sealing bodies (11) and (21), and the groove depth of each sealing groove is smaller than the diameter of each O-shaped sealing ring (6).
3. The single tube detection pressing device of the tube bundle type heat exchanger according to claim 2, wherein a plurality of open slots (71) are uniformly distributed on two end faces of the expansion sleeve (7) at intervals along the axial direction, the open slots (71) in different directions are staggered, and the length of the open slots (71) is larger than half of the length of the expansion sleeve (7).
4. The single tube detection pressing device for the tube bundle heat exchanger according to claim 3, wherein a section of tapered cylinder is further arranged on the outer circles of the sealing body (11) with holes and the sealing body (21), and the inner hole of the expansion sleeve (7) is provided with a taper, and the taper of the expansion sleeve is matched with the outer tapers of the sealing body (11) with holes and the sealing body (21).
5. The single tube detection pressurizing device for the tube bundle type heat exchanger, according to claim 4, wherein the outer diameter of the O-shaped sealing ring (6) is matched with the inner diameter of the U-shaped heat exchange tube (3).
6. The single tube detection pressurizing device for the tube bundle heat exchanger, according to claim 5, wherein a plug (13) is arranged at the connecting end of the hose (4) and the sealing body (11) with holes, and the inner diameter of the plug (13) is in matched connection with the outer diameter of the connecting end of the hose (4) and the sealing body (11) with holes.
7. The single tube detection pressurizing device for the tube bundle type heat exchanger according to claim 6, wherein the hose (4) is further provided with a pressure gauge (14) and a stop valve (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320762033.4U CN219714671U (en) | 2023-04-10 | 2023-04-10 | Single tube detection pressing device of tube bundle type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320762033.4U CN219714671U (en) | 2023-04-10 | 2023-04-10 | Single tube detection pressing device of tube bundle type heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219714671U true CN219714671U (en) | 2023-09-19 |
Family
ID=87984346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320762033.4U Active CN219714671U (en) | 2023-04-10 | 2023-04-10 | Single tube detection pressing device of tube bundle type heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219714671U (en) |
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2023
- 2023-04-10 CN CN202320762033.4U patent/CN219714671U/en active Active
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