CN218629320U - High-efficient pressure testing device of formula heat exchange tube proclaims oneself - Google Patents
High-efficient pressure testing device of formula heat exchange tube proclaims oneself Download PDFInfo
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- CN218629320U CN218629320U CN202222889811.4U CN202222889811U CN218629320U CN 218629320 U CN218629320 U CN 218629320U CN 202222889811 U CN202222889811 U CN 202222889811U CN 218629320 U CN218629320 U CN 218629320U
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- heat exchange
- exchange tube
- pressure testing
- hollow joint
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- 238000012360 testing method Methods 0.000 title claims abstract description 84
- 230000007246 mechanism Effects 0.000 claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 238000003825 pressing Methods 0.000 claims description 26
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 9
- 238000012545 processing Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 7
- 230000002706 hydrostatic effect Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The utility model discloses a proclaim oneself high-efficient pressure testing device of formula heat exchange tube, fix two supports in the base both sides including base and symmetry, interval processing has a plurality of U-shaped grooves on the support, all be provided with a pressure testing mechanism between per two corresponding U-shaped grooves, every pressure testing mechanism all includes the heat exchange tube and sets up the hollow joint at the heat exchange tube both ends, the tip of heat exchange tube is inserted to the one end of hollow joint, it has the annular to process on inserting the hollow joint outer wall at heat exchange tube tip, through O type circle sealing connection between the inner wall of annular and heat exchange tube, hollow joint places the U-shaped inslot at the support, there is the nut through threaded connection on the hollow joint of U-shaped inslot side, be provided with the series connection head on the hollow joint in the U-shaped groove outside, through the connecting pipe intercommunication between the series connection head of two adjacent pressure testing mechanism water outlet ends and water inlet end. The utility model discloses sealing performance is good, connects reliably, and the operation is safe, and the pressure testing is efficient, has apparent economic value and social value.
Description
Technical Field
The utility model relates to a heat exchange tube pressure testing technical field, concretely relates to proclaim oneself high-efficient pressure testing device of formula heat exchange tube.
Background
The heat exchanger is one of the most common and important devices in the production device of the petrochemical industry, the heat exchange tube is one of the main compression elements in the heat exchanger, the quality of the heat exchange tube determines the service life of the whole heat exchanger, the heat exchange tube becomes an important factor for restricting the whole service life of the device, leakage occurs in the normal use period of other main compression elements of the device due to a plurality of heat exchange tubes, so that part of the heat exchange tubes are required to be blocked, the device is stopped for maintenance or even replaced, and the production cost is improved. In order to ensure the quality of the heat exchange tubes, according to the regulations of the GB151 shell-and-tube heat exchanger and other standards, the heat exchange tubes are generally subjected to a water pressure test one by one before installation, the strength of each heat exchange tube is tested, and the quality of the heat exchanger after the manufacture can be ensured only if the heat exchange tubes are determined to be qualified and intact through the pressure test, so that the use requirements are met.
At present, the following problems still exist when the heat exchange pipe is subjected to a hydrostatic test: firstly, when the pressure test of the heat exchange tube is carried out, the two ends of the heat exchange tube need to be plugged by using the plug, but the sealing performance between the plug and the port of the heat exchange tube is poor, the pressure bearing is not high, the leakage problem is easy to generate, and the pressure test and pressure maintaining requirements of the heat exchange tube can not be well met; secondly, the plug is easy to fall off from the port of the heat exchange tube, the requirement of pressure test can not be met, and when the test pressure is higher, greater potential safety hazard exists; thirdly, the number of heat exchange tubes in the heat exchanger is usually more, and most of the existing heat exchange tubes adopt a mode of pressure test one by one, and only one heat exchange tube can be tested at a time, so that the operation process is complicated, time and labor are wasted, the pressure test efficiency is low, and the problem of delaying the construction period exists. Therefore, the development of a self-sealing heat exchange tube high-efficiency pressure testing device with good sealing performance, reliable connection and safe operation is objectively needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sealing performance is good, connects reliably, and the high-efficient pressure testing device of formula heat exchange tube is proclaimed oneself to operation safety.
The utility model aims at realizing like this, fix two supports in the base both sides including base and symmetry, interval processing has a plurality of U-shaped grooves on the support, U-shaped groove one-to-one on two supports, all be provided with a pressure testing mechanism between per two corresponding U-shaped grooves, every pressure testing mechanism all includes the heat exchange tube and sets up the hollow joint at the heat exchange tube both ends, the one end shutoff of hollow joint, the tip of heat exchange tube is inserted to the other end, it has the annular to process on inserting the hollow joint outer wall of heat exchange tube tip, be provided with O type circle in the annular, through O type circle sealing connection between the inner wall of annular and heat exchange tube, hollow joint places the U-shaped inslot at the support, there is the nut through threaded connection on the hollow joint of U-shaped inslot side, be provided with the cluster connector on the hollow joint in the U-shaped groove outside, the one end of pressure testing mechanism is the end of intaking, the other end, two adjacent pressure testing mechanisms go out through the connecting pipe intercommunication between the cluster connector of water end and the end, the cluster connector shutoff of last pressure testing mechanism water end.
Furthermore, the number of the ring grooves is 2-4.
Furthermore, two ends of each heat exchange tube are respectively provided with a clamping piece, each clamping piece comprises a supporting block and a pressing plate located above the supporting block, the bottom of each supporting block is fixed on the base, a through hole for the heat exchange tube to penetrate through is machined in the top of each supporting block, and the supporting blocks are connected with the pressing plates through bolts.
Furthermore, an arc-shaped groove matched with the outer wall of the heat exchange tube is processed on the lower surface of the pressing plate.
Furthermore, an annular boss is arranged on the outer wall of the hollow joint close to the ring groove.
Furthermore, a plurality of fixing mechanisms are arranged at intervals along the length direction of the heat exchange tube, each fixing mechanism comprises a pressing strip and fixing blocks located at two ends of the pressing strip, the fixing blocks are fixed on the base, the end portions of the pressing strips are connected with the fixing blocks through studs, a bayonet with an opening facing towards is machined on the pressing strip above each heat exchange tube, and the size of the bayonet is matched with that of the heat exchange tube.
Further, the connecting pipe is a high-pressure hose.
The utility model discloses when using, install the heat exchange tube one by one, install a heat exchange tube in every pressure testing mechanism, the hollow joint tip that will have O type circle inserts the heat exchange tube, O type circle forms sealedly between the annular of hollow joint and the inner wall of heat exchange tube, swivel nut makes its outside to hollow joint move, make the nut support on the support, the cluster connector of the end of intaking with first pressure testing mechanism inserts high-pressure water source, rivers flow into first pressure testing mechanism, then flow out from the cluster connector of first pressure testing mechanism water end, the end of intaking that gets into second pressure testing mechanism through the connecting pipe, analogize in proper order, rivers flow into each pressure testing mechanism in proper order, can carry out hydrostatic test. In the process, the hollow joint and the inner wall of the heat exchange pipe are sealed by the O-shaped ring, the O-shaped ring is continuously displaced to the low-pressure side along with the increase of the test water pressure, meanwhile, the elastic deformation of the O-shaped ring is continuously increased, the gap between the outer wall of the hollow joint and the inner wall of the heat exchange pipe is further filled and sealed, the contact pressure is increased, the sealing effect is further improved, and the self-sealing device has a good self-sealing effect; secondly, during pressure testing, the hollow joint tends to be separated outwards under the action of water pressure, but because the nut is propped against the supports, the two supports support the two ends of the pressure testing mechanism, the outward acting force of the hollow joint is overcome and borne, the hollow joint is prevented from falling off, the connection stability of the pressure testing mechanism during pressure testing is improved, and the pressure testing process is safer and more reliable; additionally, the utility model discloses in use the connecting pipe to establish ties each pressure testing mechanism, can carry out hydrostatic test to many heat exchange tubes simultaneously, improved the pressure testing efficiency of heat exchange tube by a wide margin. The utility model discloses sealing performance is good, connects reliably, and operation safety, the pressure testing is efficient, has apparent economic value and social value.
Drawings
Fig. 1 is a schematic view of the structure of the present invention;
fig. 2 is a schematic top view of the present invention;
fig. 3 is a left side view structure diagram of the present invention;
FIG. 4 is a schematic structural view of the clamping member of the present invention;
fig. 5 is a schematic structural view of the fixing mechanism of the present invention;
in the figure: the method comprises the following steps of 1-base, 2-support, 3-pressure testing mechanism, 4-heat exchange tube, 5-hollow joint, 6-O-shaped ring, 7-nut, 8-string connector, 9-connecting tube, 10-support block, 11-pressing plate, 12-bolt, 13-arc groove, 14-annular boss, 15-pressing strip, 16-fixing block, 17-stud and 18-bayonet.
Description of the preferred embodiment
The following description of the present invention is made with reference to the accompanying drawings, but the present invention is not limited thereto in any way, and any changes or improvements made based on the present invention all belong to the protection scope of the present invention.
As shown in fig. 1-5, the utility model discloses a base 1 and symmetry are fixed at two supports 2 of base 1 both sides, support 2 is fixed on base 1, interval processing has a plurality of U-shaped grooves on support 2, U-shaped groove one-to-one on two supports 2, and all be provided with a pressure testing mechanism 3 between per two corresponding U-shaped grooves, every pressure testing mechanism 3 all includes heat exchange tube 4 and sets up the hollow joint 5 at heat exchange tube 4 both ends, the one end shutoff of hollow joint 5, the other end inserts the tip of heat exchange tube 4, it has the annular to process on the hollow joint 5 outer wall that inserts the heat exchange tube 4 tip, be provided with O type circle 6 in the annular, through O type circle 6 sealing connection between the inner wall of annular and heat exchange tube 4, hollow joint 5 places the U-shaped inslot at support 2, there is nut 7 through threaded connection on the hollow joint 5 of support 2 inboard, be provided with on the hollow joint 5 in the support 2 outside and have a connector 8, the one end of mechanism 3 is the end of intaking, the other end is the water outlet end, two adjacent pressure testing mechanism 3 goes out water outlet end through connecting pipe 9 intercommunication between the pressure testing connector 8 of pressure testing mechanism.
The utility model discloses when using, install heat exchange tube 4 one by one, install a heat exchange tube 4 in every pressure testing mechanism 3, hollow joint 5 tip that will have O type circle 6 inserts heat exchange tube 4, O type circle 6 forms sealedly between hollow joint 5's annular and heat exchange tube 4's inner wall, it moves to hollow joint 5's the outside to rotate nut 7 messenger, make nut 7 support on support 2, the cluster connector 8 of end of intaking first pressure testing mechanism 3 inserts high pressure water source, rivers flow into first pressure testing mechanism 3, then flow out from the cluster connector 8 of first pressure testing mechanism 3 water outlet end, end of intaking that gets into second pressure testing mechanism 3 through connecting pipe 9, analogize in proper order, rivers flow in proper order into each pressure testing mechanism 3, can carry out water pressure test to heat exchange tube 4. In the process, the hollow joint 5 and the inner wall of the heat exchange tube 4 are sealed by the O-shaped ring 6, the O-shaped ring 6 is continuously displaced towards the low-pressure side along with the increase of the test water pressure, meanwhile, the elastic deformation of the O-shaped ring is continuously increased, the gap between the outer wall of the hollow joint 5 and the inner wall of the heat exchange tube 4 is further filled and sealed, the contact pressure is increased, the sealing effect is further improved, and the self-sealing device has a good self-sealing effect; secondly, during pressure testing, the hollow joint 5 tends to be separated outwards under the action of water pressure, but because the nut 7 is propped against the support seats 2, the two support seats 2 support the two ends of the pressure testing mechanism 3, the outward acting force of the hollow joint 5 is overcome and borne, the hollow joint 5 is prevented from falling off, the connection stability of the pressure testing mechanism 3 during pressure testing is improved, and the pressure testing process is safer and more reliable; additionally, the utility model discloses in use connecting pipe 9 to establish ties each pressure testing mechanism 3, can carry out hydrostatic test to many heat exchange tubes 4 simultaneously, improved heat exchange tube 4's pressure testing efficiency by a wide margin.
Preferably, the number of the ring grooves is 2-4, and the specific number can be determined according to the actual conditions of pressure testing, the material of the O-shaped ring 6 and the like.
The two ends of each heat exchange tube 4 are respectively provided with a clamping piece, each clamping piece comprises a supporting block 10 and a pressing plate 11 located above the supporting block 10, the bottom of the supporting block 10 is fixed on the base 1, a through hole for the heat exchange tube 4 to penetrate through is machined in the top of the supporting block 10, and the supporting block 10 is connected with the pressing plate 11 through a bolt 12. The clamping piece is used for fixing and positioning the heat exchange tube 4, and particularly when the pressure of a pressure test is large, the heat exchange tube 4 is prevented from accidentally flying out under the action of large internal pressure or large water flow impact, safety and reliability of the heat exchange tube 4 during a hydrostatic test are ensured, and the hydrostatic test of the heat exchange tube 4 is ensured to be smoothly carried out.
The lower surface of the pressing plate 11 is provided with an arc-shaped groove 13 which is matched with the outer wall of the heat exchange tube 4, and compared with the pressing plate 11 with the plane lower surface, the contact area between the arc-shaped groove 13 and the outer wall of the heat exchange tube 4 is larger, the clamping and fixing effect on the heat exchange tube 4 is better, and the arc-shaped groove 13 also has a positioning effect on the heat exchange tube 4.
Be provided with annular boss 14 on the hollow joint 5 outer wall near the annular, when inserting hollow joint 5 heat exchange tube 4, the good control of inserted degree of depth, some insert deeply, some insert more shallowly, do not unify the inserted degree of depth well, and annular boss 14 set up just can control the depth of insertion for annular boss 14 support 4 tip in the heat exchange tube can, play the effect of location, be convenient for the operation more.
A plurality of fixing mechanisms are arranged along the length direction of the heat exchange tube 4 at intervals, the number of the fixing mechanisms and the distance between the fixing mechanisms can be determined according to the length of the heat exchange tube 4, the pressure of a pressure test and other practical conditions, each fixing mechanism comprises a pressing strip 15 and fixing blocks 16 positioned at two ends of the pressing strip 15, the fixing blocks 16 are fixed on the base 1, the end parts of the pressing strips 15 are connected with the fixing blocks 16 through studs 17, bayonets 18 with opening directions are machined on the pressing strips 15 above each heat exchange tube 4, and the size of the bayonets 18 is matched with that of the heat exchange tube 4. The fixing mechanism is used for fixing and positioning the heat exchange tube 4 and preventing the heat exchange tube 4 from shaking in the pressure test process, when the fixing mechanism is used, the two fixing blocks 16 are fixed on the base 1, under the general condition, the fixing blocks 16 and the base 1 can be connected in a welding mode, then the pressing strip 15 is pressed on the heat exchange tube 4, the pressing strip 15 and the fixing blocks 16 are connected through the studs 17, after the pressure test of the heat exchange tube 4 is finished, the studs 17 are loosened, and the heat exchange tube 4 can be taken out after the pressing strip 15 is removed.
Preferably, connecting pipe 9 is high-pressure hose, and high-pressure hose mainly is used as the flexible coupling of pipeline the utility model discloses in, come to establish ties pressure testing mechanism through high-pressure hose, and accessible threaded connection before high-pressure hose and the connection head 8, can satisfy the pressure testing requirement of heat exchange tube 4, and connect also comparatively convenient.
Claims (7)
1. A self-sealing type heat exchange tube high-efficiency pressure test device comprises a base (1) and two supports (2) symmetrically fixed on two sides of the base (1), and is characterized in that a plurality of U-shaped grooves are processed on the supports (2) at intervals, the U-shaped grooves on the two supports (2) correspond to each other one by one, a pressure test mechanism (3) is arranged between every two corresponding U-shaped grooves, each pressure test mechanism (3) comprises a heat exchange tube (4) and hollow joints (5) arranged at two ends of the heat exchange tube (4), one end of each hollow joint (5) is plugged, the other end of each hollow joint is inserted into the end part of the heat exchange tube (4), an annular groove is processed on the outer wall of each hollow joint (5) inserted into the end part of the heat exchange tube (4), an O-shaped ring (6) is arranged in each annular groove, the annular groove is hermetically connected with the inner wall of the heat exchange tube (4) through the O-shaped ring (6), the hollow joints (5) are arranged in the U-shaped grooves of the supports (2), nuts (7) are connected on the hollow joints (5) on the inner sides of the supports (2) through threads, a water inlet end of the hollow joints (8) on the outer sides of the supports (2), a water string is connected with a water test mechanism through a water outlet end (3), the water outlet end of the water pressure mechanism (9) connected with a water outlet mechanism through a water outlet end of a water outlet mechanism (3) connected with a water outlet mechanism (9), and the string connecting head (8) at the water outlet end of the last pressure testing mechanism (3) is plugged.
2. The self-sealing heat exchange tube high-efficiency pressure testing device according to claim 1, wherein the number of the ring grooves is 2-4.
3. The self-sealing heat exchange tube high-efficiency pressure test device according to claim 1, wherein two ends of each heat exchange tube (4) are respectively provided with a clamping piece, each clamping piece comprises a supporting block (10) and a pressing plate (11) positioned above the supporting block (10), the bottom of each supporting block (10) is fixed on the base (1), a through hole for the heat exchange tube (4) to pass through is formed in the top of each supporting block (10), and the supporting blocks (10) are connected with the pressing plates (11) through bolts (12).
4. The self-sealing heat exchange tube high-efficiency pressure testing device according to claim 3, characterized in that the lower surface of the pressure plate (11) is provided with an arc-shaped groove (13) which is matched with the outer wall of the heat exchange tube (4).
5. The self-sealing heat exchange tube high-efficiency pressure testing device according to claim 1 is characterized in that an annular boss (14) is arranged on the outer wall of the hollow joint (5) close to the annular groove.
6. The self-sealing type heat exchange tube high-efficiency pressure test device according to claim 1, characterized in that a plurality of fixing mechanisms are arranged at intervals along the length direction of the heat exchange tube (4), each fixing mechanism comprises a pressing strip (15) and fixing blocks (16) positioned at two ends of the pressing strip (15), the fixing blocks (16) are fixed on the base (1), the end parts of the pressing strips (15) are connected with the fixing blocks (16) through studs (17), bayonets (18) with openings facing towards are machined on the pressing strips (15) above each heat exchange tube (4), and the size of the bayonets (18) is matched with the heat exchange tubes (4).
7. The self-sealing heat exchange tube high-efficiency pressure test device according to claim 1, wherein the connecting tube (9) is a high-pressure hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222889811.4U CN218629320U (en) | 2022-11-01 | 2022-11-01 | High-efficient pressure testing device of formula heat exchange tube proclaims oneself |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222889811.4U CN218629320U (en) | 2022-11-01 | 2022-11-01 | High-efficient pressure testing device of formula heat exchange tube proclaims oneself |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218629320U true CN218629320U (en) | 2023-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222889811.4U Active CN218629320U (en) | 2022-11-01 | 2022-11-01 | High-efficient pressure testing device of formula heat exchange tube proclaims oneself |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218629320U (en) |
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2022
- 2022-11-01 CN CN202222889811.4U patent/CN218629320U/en active Active
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