CN206310133U - Single tube pressure test quick coupling - Google Patents
Single tube pressure test quick coupling Download PDFInfo
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- CN206310133U CN206310133U CN201621321243.6U CN201621321243U CN206310133U CN 206310133 U CN206310133 U CN 206310133U CN 201621321243 U CN201621321243 U CN 201621321243U CN 206310133 U CN206310133 U CN 206310133U
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- piston
- cylinder
- end socket
- pressure testing
- snap joint
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- 238000012360 testing method Methods 0.000 title claims abstract description 63
- 230000008878 coupling Effects 0.000 title description 2
- 238000010168 coupling process Methods 0.000 title description 2
- 238000005859 coupling reaction Methods 0.000 title description 2
- 238000007789 sealing Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000003780 insertion Methods 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 230000003044 adaptive effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000012958 reprocessing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 235000019994 cava Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a single-tube pressure test quick connector, which comprises a cylinder, a piston, a seal head, a clamping mechanism and a connecting tube; the piston, the end socket and the clamping mechanism are arranged in the cylinder body, the clamping mechanism and the end socket are respectively arranged at two ends of an inlet and an outlet of the cylinder body, the piston is arranged between the end socket and the clamping mechanism, the connecting pipe penetrates through the end socket and is connected with the inlet end of the piston, a water outlet is arranged on the connecting pipe, a sealing cavity is defined by the inner walls of the piston, the end socket and the cylinder body, and the water outlet is positioned in the sealing cavity; the thickness of the inner wall of the cylinder body close to the outlet end of the cylinder body is gradually reduced from the outlet end to the inside of the cylinder body to form a cylinder body conical surface; the clamping mechanism is arranged at the outlet end of the cylinder and is a round table which is formed by a plurality of clamping blocks in a surrounding mode and provided with a clamping opening, the round table is inserted into the outlet end of the cylinder and is in adaptive fit with the conical surface of the cylinder and then is embedded with the piston, the pressure test tube penetrates through the clamping opening to be connected with the outlet end of the piston, the connecting tube is pulled, the piston slides left and right along the cylinder and drives the clamping opening of the conical body to tighten or enlarge, and then the conical body is controlled to be clamped or loosened.
Description
Technical field
The utility model is a kind of attachment means slotting soon of heat exchanger tube pressure testing.
Background technology
Daqing Petro-Chemical Machinery Factory is main to produce based on pipe bundle heat exchanger, 100,000 left sides of average annual production heat exchanger tube
The right side, substantial amounts of tube bank needs to use water under high pressure leak test after the system of simmering, and the general pressure test pressure of the requirement according to exchange capability of heat is in 5Mpa-
Between 15Mpa, having been used up the mode that pressure testing pipe is welded to connect carries out pressure testing：I.e. single tube bank " head touches tail " mode is welded
Connect, after multigroup tube bank forms an annular seal space, be most followed by high-pressure hydraulic pump and suppress.Needed after the completion of pressure testing to each welding tube bank
End is cut, and to reach use condition after disconnecting one by one and to tube head reprocessing, carries out next process.Wherein, the pressure testing
Method there are problems that a lot：1st, tube bank welding process requirement is very high, extremely inefficient；2nd, cutting is destroyed after pressure testing, material is caused
Waste, every heat exchanger tube must reserve the allowance of more than 100mm length；3rd, produced due to cutting at tube head after cutting
High temperature makes reprocessing difficult；4th, whole pressure testing process very complicated, wastes time and energy, and exhausts the people and drains the treasury.The operation has a strong impact on equipment
Manufacturing schedule, therefore a kind of appearance of good tube bank structure for pressure test is extremely urgent.
Utility model content
In order to solve the problems such as restrain time-consuming, laborious in traditional pressure-measuring method, Daqing Petrochemical machinery all the time
A kind of single tube pressure testing snap joint that organizational technology of factory personnel voluntarily develop and fabricate, greatly increases single tube pressure testing
Efficiency.
This practicality provides a kind of single tube pressure testing snap joint, including：Cylinder, piston, end socket, clamp system, connection
Pipe；
Piston, end socket, clamp system are arranged in cylinder, and the clamp system, end socket are respectively arranged on the gateway of cylinder
Two ends, piston is arranged between end socket, clamp system, and connecting tube is connected through end socket with piston inlet port end, and connecting tube is provided with
Delivery port, the piston, end socket, cylinder inboard wall surround an annular seal space, and the delivery port is located in the annular seal space；
Cylinder inboard wall thickness near the port of export of cylinder forms a cylinder to gradually being reduced in cylinder from its port of export
The conical surface；The clamp system is to be enclosed in formed one round platform for being provided with jaws, round platform insertion tube body by multiple fixture blocks and cylinder
Conical surface adaptability is chimeric with piston again after coordinating, and pressure testing pipe is connected through jaws with the port of export of piston, and left and right pulls connecting tube,
Horizontally slipped along cylinder and drive the jaws of bullet to tighten up or amplify in the drive lower piston of connecting tube, and then control taper
Pressure testing pipe is unclamped in body clamping.
Described single tube pressure testing snap joint, it is characterised in that the snap joint also includes a push piece, the pushing and pressing
Part is arranged between end socket and piston and contradicts piston.
Described single tube pressure testing snap joint, it is characterised in that push piece is a spring part.
Described single tube pressure testing snap joint, it is characterised in that one handle is additionally provided with cylinder, handle is fixed on cylinder
Arrival end.
Described single tube pressure testing snap joint, it is characterised in that handle includes that one handle handle, one are connected with handle
The stator for being provided with mounting hole, stator is covered on the arrival end of cylinder, and handle extends obliquely along stator, hand
Angle is 95-105 degree between handle hand and stator.
Described single tube pressure testing snap joint, it is characterised in that round platform is detachable round platform, is enclosed by 4 fixture blocks and is formed,
The center of jaws insertion round platform.
Described single tube pressure testing snap joint, it is characterised in that the bottom surface radius of round platform is more than top surface radius, near round platform
At bottom surface an annular recess, a collar flange are circumferentially with along round platform.
Described single tube pressure testing snap joint, it is characterised in that the piston includes a top land and the piston top
Portion is integrally formed a piston skirt of connection, and an annular slot, the top land are provided between top land and piston skirt
In the insertion annular recess, the collar flange is snapped in the annular slot, and the first groove is provided with top land, described
First groove extends to piston skirt and leads to by one with the second groove for being arranged at the piston skirt from the top land
Road is connected, and the first groove inner surface is circumferentially with one first closure gasket groove, and it is close to be circumferentially with second outside the piston skirt
Seal ring groove, sealing ring is equipped with the first closure gasket groove, the second closure gasket groove.
Described single tube pressure testing snap joint, it is characterised in that be provided with accommodating cavity, the bullet near end socket one end of piston
Spring part part is snapped in accommodating cavity.
Described single tube pressure testing snap joint, it is characterised in that end socket external circumferential is provided with one the 3rd closure gasket groove, end socket
Inwall is circumferentially with the 4th closure gasket groove, and the 3rd closure gasket groove, the 4th closure gasket groove are arranged at the opposite end of end socket, and the 3rd is close
Seal ring groove is just corresponding to accommodating cavity and is setting.
The beneficial effects of the utility model are：The snap joint has been obtained in the actual production of Daqing Petro-Chemical Machinery Factory
To on probation, and using effect is good, eliminates the weldering of single tube group, multitube cutting and tube head reprocessing operation, improve production efficiency
Nearly 50 times, shorten the manufacturing schedule of equipment, greatly reduce production cost, (the every pressure testing cost of pipe 0.2 yuan with
Under), while significantly reducing the labour intensity of workman.
Brief description of the drawings
Fig. 1 is single tube pressure testing quick coupling structure schematic diagram.
Wherein reference is：
Cylinder 1
Piston 11
Piston skirt 111
Second closure gasket groove 1111
Annular slot 1112
Top land 112
First closure gasket groove 1121
Annular seal space 113
End socket 12
Push piece 121
Accommodating cavity 122
3rd closure gasket groove 123
4th closure gasket groove 124
Sealing ring 125
Clamp system 13
Jaws 131
Annular recess 132
Collar flange 133
The cylinder conical surface 14
Connecting tube 2
Delivery port 21
Handle 3
Handle 31
Stator 32
Pressure testing pipe 4
Specific embodiment
The single tube pressure testing snap joint that the utility model is provided, is shown in Fig. 1, including：Cylinder 1, connecting tube 2, piston 11, end socket
12nd, push piece 121, clamp system 13, handle 3.
Piston 11, end socket 12, clamp system 13 are provided with cylinder 1, clamp system 13, end socket 11 are respectively arranged on going out for cylinder
Entrance two ends, end socket 12 is bolted on the arrival end of cylinder, and on the insertion cartridge outlet of clamp system 13 end, piston 11 is arranged at envelope
Between first 12, clamp system 13, connecting tube is connected through end socket with piston inlet port, and pressure testing pipe 4 goes out through clamp system with piston
Mouth connection.The inner wall thickness of cylinder 1 near the port of export forms a cylinder conical surface 14 to gradually being reduced in cylinder 1 from the port of export,
Clamp system 13 is to enclose the round platform for having jaws for being formed, the center of the insertion round platform of jaws 131, the bottom surface of round platform by 4 fixture blocks
Radius is more than top surface radius, the round platform insertion entrance of cylinder 1 and the mating connection of the adaptability of the cylinder conical surface 14, round platform bottom surface and piston 11
Chimeric, clamp system 13, piston 11, end socket 12, connecting tube 2 link into an integrated entity.
The bottom surface radius of round platform is more than top surface radius, and round platform circumferentially caves inward to form an annular recess at bottom surface
132nd, a collar flange 133.Piston 11 includes that a top land 112 and top land 112 are integrally formed a piston skirt of connection
Portion 111, is provided with an annular slot 1112, the insertion annular recess 132 of top land 112 between top land 112 and piston skirt
Interior, collar flange 133 is snapped in annular slot, is closely engaged with piston to clamp system.The first groove, are provided with piston
The first groove is provided with two grooves, top land 112, the first groove extends to piston skirt 111 and set from top land 112
The second groove in piston skirt passes through a channel connection, and the first groove inner surface is circumferentially with one first closure gasket groove 1121,
The second closure gasket groove 1111 is circumferentially with outside piston skirt 111, the first closure gasket groove, the second closure gasket groove are equipped with sealing ring.
Circumferentially an annular recess 132 is opened in direction inside round platform, and at bottom surface, the radius of annular recess 132 will for annular recess 132
The radius of top land 112 with piston is identical, is beneficial to top land 112 and snaps in annular recess 132, and the ring-type in round platform is convex
Edge 133 is snapped in annular slot 1112, and clamp system is chimeric with piston, and pressure testing pipe 4 snaps in the first groove through jaws 131
Interior, connecting tube is snapped in the second groove through end socket, is transferred in pressure testing pipe by passage from the hydraulic pressure in annular seal space, to close
The sealing for sealing chamber is even more important, and seal groove is equipped with end socket, piston.
The end socket 12 that the utility model is provided is the sleeve structure for being provided with one end external thread part, is provided between end socket and piston
One push piece 121, push piece 121 extends to piston 11 and contradicts piston 11 along connecting tube, push piece 121 in the utility model
It is a spring, accommodating cavity is provided between end socket one end of piston and connecting tube, partial spring is arranged in accommodating cavity.End socket
12 external circumferentials are provided with one the 3rd closure gasket groove 123, and the inwall of end socket 12 is circumferentially with the 4th closure gasket groove 124, the 3rd sealing ring
Groove 123, the 4th closure gasket groove 124 are arranged at the opposite end of end socket 12, and the positive correspondence accommodating cavity 122 of the 3rd closure gasket groove 123 sets
Put, the 3rd closure gasket groove 123, the equal device sealing ring of the 4th closure gasket groove 124, end socket, piston, cylinder 1 and be arranged at end socket,
The annular seal space that sealing ring on piston is constituted.
The one end of connecting tube 2 is connected with piston skirt 111, and the other end of connecting tube 2 is connected with high-pressure pump (not shown), high pressure
Current are pumped into connecting tube by pump, and a part of water flows through in the connecting tube 2 injection annular seal space of two delivery port 21.Pressure testing pipe 4 passes through folder
Mouth 131 and the connection of top land 112, fix with piston 11 because of connecting tube and are integrally formed, and left and right pulls connecting tube, the edge of piston 11
Cylinder 1 to horizontally slip and drive the jaws 131 of bullet to tighten up or amplify, and then control bullet to unclamp or clamping pressure testing pipe
4。
Handle 3 is arranged on cylinder 1, and handle 3 is fixed on the arrival end of cylinder 1.Handle 3 includes one handle handle 31,
The stator 32 of mounting hole is provided with, stator 32 is arranged at the entrance face of cylinder 1, and handle 31 is oblique along stator 32
Upwardly extend, angle is 95-105 degree between handle 31 and stator 32.
The operation principle of the present apparatus is as follows, mainly uses the pressure itself of test medium (clear water) to step up pressure testing pipe 4,
Prevent from departing from (pressure medium is bigger, and the clamping force of fixture block is also bigger), the sealing ring pressure-bearing furthermore with special substance ensures not
The principle design of leakage.Current from high-pressure hydraulic pump are injected in annular seal space 113 by two delivery ports 21 in connecting tube,
Another part is directly injected into piston 11 by connecting tube 2, and with the raising of pressure, the pressure medium in annular seal space 113 is promoted
Piston 11 and fixture block tighten up fixture block to the outer side shifting of cylinder 1 under the reaction force of the cylinder conical surface 14, and pressure testing pipe 4 is clamped
Prevent it from deviating from, after stipulated time pressurize, complete pressure testing.
The critical component of the snap joint that the present apparatus is provided be export in cylinder 1, arrival end sets piston 11, end socket 12,
It is arranged at the second closure gasket groove 1111 on piston 11, the first closure gasket groove 1121 and the 3rd sealing ring being arranged on end socket 12
Groove 123, the 4th closure gasket groove 124, the first closure gasket groove 1121, the second closure gasket groove 1111, the 3rd closure gasket groove the 123, the 4th
Closure gasket groove 124 is equiped with sealing ring, and sealing ring uses special substance, and effect is subject to the pressure of high-pressure medium, using four groups
Sealing ring, one is to ensure end socket 12, piston 11 and the triangular dynamic sealing of cylinder 1, and two are ensured between connecting tube 2 and end socket 12
Static seal, three is to ensure the static seal between piston 11 and pressure testing pipe 4；So as to ensure that the pressure from connecting tube 2 is transferred to pressure testing
In pipe 4.
The substantial amounts of pressure testing pipe 4 to be tested, it is crucial, the crucial portion of the snap joint that the present apparatus is provided to improve test speed
One of part is set multiple fixture blocks and encloses the round platform for being provided with jaws 131 to be formed in the port of export of cylinder 1, during test, will be tried
In the insertion jaws 131 of pressure pipe 4, piston 11 can be moved horizontally in cylinder 1 during mobile link pipe 2, and can drag fixture block presss from both sides it
Mouth 131 amplifies or tightens up, and specifically, when testing pressure testing pipe 4, proficiency handgrip handle on the other hand promotes connecting tube 2 to the left,
Under the promotion of spring, end socket 12 and fixture block clamp the pressure testing pipe 4 inserted in end socket 12 in advance, after being completed, proficiency handgrip handle, separately
Pull outward connecting tube 2 on the other hand, and connecting tube 2 moves right with piston 11, and then drives round platform to move right, the cylinder conical surface 14 pairs
Round platform reaction force attenuation, and round platform is obtained jaws 131 and amplify, so that jaws 131 loosens pressure testing pipe 4, so as to take out pressure testing pipe
4。
Claims (10)
1. single tube pressure testing snap joint, it is characterised in that including cylinder, piston, end socket, clamp system, connecting tube；
Piston, end socket, clamp system are arranged in cylinder, and the clamp system, end socket are respectively arranged on the gateway two ends of cylinder,
Piston is arranged between end socket, clamp system, and connecting tube is connected after passing through end socket with piston inlet port end, and connecting tube is provided with water outlet
Mouthful, the piston, end socket, cylinder inboard wall surround an annular seal space, and the delivery port is located in the annular seal space；
Cylinder inboard wall thickness near the port of export of cylinder forms a cylinder conical surface to gradually being reduced in cylinder from its port of export；
The clamp system is to be enclosed in formed one round platform for being provided with jaws, round platform insertion tube body to be fitted with the cylinder conical surface by multiple fixture blocks
Answering property is chimeric with piston again after coordinating, and pressure testing pipe is connected through jaws with the port of export of piston, and left and right pulls connecting tube, in connection
The drive lower piston of pipe horizontally slips along cylinder and drives the jaws of bullet to tighten up or amplify, and then controls bullet clamping
Or unclamp pressure testing pipe.
2. single tube pressure testing snap joint as claimed in claim 1, it is characterised in that the snap joint also includes a pushing and pressing
Part, the push piece is arranged between end socket and piston and contradicts piston.
3. single tube pressure testing snap joint as claimed in claim 2, it is characterised in that push piece is a spring part.
4. single tube pressure testing snap joint as claimed in claim 1, it is characterised in that one handle is additionally provided with cylinder, handle is solid
Due to the arrival end of cylinder.
5. single tube pressure testing snap joint as claimed in claim 4, it is characterised in that handle includes one handle handle, one and hand
The stator for being provided with mounting hole of handle hand connection, stator is covered on the arrival end of cylinder, and handle is oblique along stator
Upwardly extend, angle is 95-105 degree between handle and stator.
6. single tube pressure testing snap joint as claimed in claim 1, it is characterised in that round platform is detachable round platform, by 4 fixture blocks
Enclose to be formed, the center of jaws insertion round platform.
7. single tube pressure testing snap joint as claimed in claim 6, it is characterised in that the bottom surface radius of round platform is more than top surface half
Footpath, an annular recess, a collar flange are circumferentially with round platform bottom surface along round platform.
8. single tube pressure testing snap joint as claimed in claim 7, it is characterised in that the piston include a top land and
The top land is integrally formed a piston skirt of connection, and an annular slot, institute are provided between top land and piston skirt
State top land to be embedded in the annular recess, the collar flange is snapped in the annular slot, the is provided with top land
One groove, first groove extends to piston skirt and recessed be arranged at the piston skirt second from the top land
Groove is circumferentially with one first closure gasket groove by a channel connection, the first groove inner surface, circumferential outside the piston skirt
The second closure gasket groove is provided with, sealing ring is equipped with the first closure gasket groove, the second closure gasket groove.
9. single tube pressure testing snap joint as claimed in claim 3, it is characterised in that the end socket one end near piston is provided with accommodating
Chamber, the spring member portions are snapped in accommodating cavity.
10. single tube pressure testing snap joint as claimed in claim 9, it is characterised in that it is close that end socket external circumferential is provided with one the 3rd
Seal ring groove, end socket inwall is circumferentially with the 4th closure gasket groove, and the 3rd closure gasket groove, the 4th closure gasket groove are arranged at the relative of end socket
Two ends, the 3rd closure gasket groove is just corresponding to accommodating cavity and is setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621321243.6U CN206310133U (en) | 2016-12-02 | 2016-12-02 | Single tube pressure test quick coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621321243.6U CN206310133U (en) | 2016-12-02 | 2016-12-02 | Single tube pressure test quick coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206310133U true CN206310133U (en) | 2017-07-07 |
Family
ID=59251219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621321243.6U Active CN206310133U (en) | 2016-12-02 | 2016-12-02 | Single tube pressure test quick coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206310133U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882096A (en) * | 2019-01-16 | 2019-06-14 | 中煤科工集团西安研究院有限公司 | A kind of jack catchs type water feeder and its construction method |
| CN112576836A (en) * | 2020-12-23 | 2021-03-30 | 成都科瑞尔低温设备有限公司 | Ultrahigh pressure hydraulic expansion pipe connecting pipe joint |
-
2016
- 2016-12-02 CN CN201621321243.6U patent/CN206310133U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882096A (en) * | 2019-01-16 | 2019-06-14 | 中煤科工集团西安研究院有限公司 | A kind of jack catchs type water feeder and its construction method |
| CN109882096B (en) * | 2019-01-16 | 2021-04-20 | 中煤科工集团西安研究院有限公司 | Jaw type water feeder and construction method thereof |
| CN112576836A (en) * | 2020-12-23 | 2021-03-30 | 成都科瑞尔低温设备有限公司 | Ultrahigh pressure hydraulic expansion pipe connecting pipe joint |
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