CN114235311A - Pipeline hydrostatic test method suitable for groove on one side and flange on the other side - Google Patents
Pipeline hydrostatic test method suitable for groove on one side and flange on the other side Download PDFInfo
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- CN114235311A CN114235311A CN202111563883.3A CN202111563883A CN114235311A CN 114235311 A CN114235311 A CN 114235311A CN 202111563883 A CN202111563883 A CN 202111563883A CN 114235311 A CN114235311 A CN 114235311A
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- test
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
Abstract
The invention discloses a pipeline hydraulic test method suitable for a groove on one side and a flange on the other side, which comprises the following steps: a U-shaped metal frame, an annular radian frame is welded between the bottoms of the U-shaped metal frames, a round hole is arranged on one side of the outer wall of the U-shaped metal frame, and the inner surface wall of the round hole is fixedly provided with a threaded sleeve, the inner surface wall of the threaded sleeve is rotatably connected with a threaded rod, the threaded sleeve is sequentially connected with a pipeline and a test tool, and a flexible joint is utilized to perform transitional connection of a groove, meanwhile, a water cavity arranged in a pneumatic clamping device on the hydraulic test bed is used for supplying water, when water overflows from the water outlet of a drain pipe on the blocking plate tool, a folding angle cock valve in the blocking plate tool is closed, pressurizing for pressure maintaining, solving the problem that a pipeline with a groove at one side and a flange at the other side can not be used for hydraulic test by utilizing a method which is simple to operate and easy to realize, and the test tool is convenient to disassemble and assemble, and can test two test pipelines simultaneously, so that the production efficiency is improved, and the practicability is high.
Description
Technical Field
The invention relates to the technical field of hydraulic test equipment, in particular to a pipeline hydraulic test method suitable for a pipeline with a groove on one side and a flange on the other side.
Background
Hydrostatic testing is one way in which pressure vessels such as pipes, gas bottles, boilers can test the strength and leakage from tanks, the testing including filling the vessel or piping with a liquid (usually water) that may be dyed to aid in visual leak detection and pressurizing the vessel to a specified test pressure, testing the pressure tightness by closing the gas supply valve and observing whether there is a loss of pressure, more easily visually identifying the location of the leak if the water contains a colorant, strength is usually tested by measuring the deformation of the vessel, hydrostatic testing is the most common method of testing pipes and pressure vessels, using this test to help maintain the safety standards and durability of the vessel over time, newly manufactured parts are initially qualified using hydrostatic testing, and then they will periodically use pressure tests also known as modified hydrostatic testing, testing pressure vessels for the transport and storage of gases is very important because if these vessels fail under pressure, they can explode.
The oil water pipeline of the internal combustion engine car is mainly connected by double flanges, after the pipe is welded with flanges on two sides, a hydraulic test is carried out on the assembly of the hydraulic test bed and the plug plate to the pipe, the quality of a welding line is ensured, one side of the flange is plugged by the common plug plate with bolt holes and rubber, the other side of the flange is plugged by a pneumatic clamping device of the hydraulic test bed, and during the test, a built-in water cavity of the pneumatic clamping device is used for injecting water and maintaining pressure.
However, the existing equipment has the following defects:
the water pressure that can't be discharged by the ordinary closure plate that has the bolt hole receives the unnecessary air in the test tube and utilizes the closure plate bolt to connect, and the dismouting is troublesome, waste time, and the operation of being not convenient for, and prior art can't be welding flange to one side, and the opposite side carries out the hydrostatic test for the pipe of slot processing form.
We have therefore proposed a method for hydrostatic testing of a pipeline having a groove on one side and a flange on the other side, in order to solve the problems set out above.
Disclosure of Invention
The invention aims to provide a pipeline hydraulic test method suitable for a pipe with a groove on one side and a flange on the other side, and aims to solve the problem that a common blocking plate with bolt holes in the background technology cannot discharge redundant air in a test tube under the action of water pressure.
In order to achieve the purpose, the invention provides the following technical scheme: a pipeline hydraulic test method suitable for a groove on one side and a flange on the other side comprises the following steps: the device comprises a U-shaped metal frame, wherein an annular radian frame is welded between the bottoms of the U-shaped metal frame, a round hole is formed in one side of the outer wall of the U-shaped metal frame, a threaded sleeve is fixedly installed on the inner surface wall of the round hole, and a threaded rod is rotatably connected to the inner surface wall of the threaded sleeve;
the thread wire on the outer surface wall of the threaded rod is matched with the thread groove on the inner wall of the threaded sleeve;
an upper joint is fixedly installed on one side of the outer wall of the threaded rod, and a rotating handle is fixedly inserted into the upper joint;
the rotary handle is manually pulled to enable the threaded rod connected with the rotary handle to provide kinetic energy and to rotate and move in the threaded sleeve;
the outer surface wall of the threaded rod is rotatably connected with a threaded joint, one side of the outer wall of the threaded joint is fixedly provided with a blocking plate, and the outer surface wall of the blocking plate is provided with a silica gel sealing gasket;
the silica gel sealing gasket is used for improving the sealing property when the blocking plate is contacted with other parts, and preventing a larger gap from being formed at a contact point;
the top of closure plate is fixed the intercommunication has the drain pipe, the inside of drain pipe is provided with dog-ear cock valve.
Preferably, the blocking plate and the silica gel sealing gasket are internally provided with drain holes, the water inlet ends of the drain holes and the drain pipe are vertically parallel, and the two drain holes are positioned at the middle parts of the blocking plate and the silica gel sealing gasket.
Preferably, a hydraulic test bed is arranged on one side of the outer wall of the blocking plate, and a baffle is fixedly mounted at the top of the hydraulic test bed.
Preferably, the activity is provided with two test tubes, two between the relative one side of sealed pad of silica gel and baffle receive the equal fixed mounting in one side of carrying on the back of the body of test tube has the flange.
Preferably, grooves are reserved on the opposite sides of the two test tubes, and a rubber ring is movably sleeved between the outer walls of the two grooves;
the rubber circle is used for adding the produced gap between two slots of stifled, improves the leakproofness when detecting the test tube.
Preferably, the outer surface wall of the plugging plate and the outer surface wall of the silica gel sealing gasket are fastened through a group of iron wires.
Preferably, the outer surface wall of one of the two flanges contacts with the outer wall of the silica gel sealing gasket, and the other flange penetrates through the baffle plate to clamp one of the flanges in the baffle plate.
Preferably, a supporting base station is fixedly installed at the top of the hydraulic test bed, and a pneumatic clamping device is fixedly installed inside the supporting base station.
Preferably, the outer wall of one of the two flanges is fixedly blocked by a pneumatic clamping device.
Preferably, two flexible joints are movably sleeved between the outer surface walls of the two grooves, a group of engagement holes are formed in the two flexible joints, and the inner surface walls of every two engagement holes are fixed through screws;
the two flexible joints are used for fixing the rubber ring, and the inner wall of the rubber ring is tightly attached to the interface of the two grooves.
Compared with the prior art, the invention has the beneficial effects that:
the invention simultaneously seals and fixes the grooves on two test tubes by utilizing the flexible joint connecting assembly, and the other side of the test tubes is welded with a flange structure, wherein the flange on one test tube is blocked by adopting a blocking plate tool, the flange on the other test tube can be fixed and blocked by utilizing a pneumatic clamping device on a hydraulic test bench, a pipeline and a test tool are sequentially connected, the flexible joint is utilized for carrying out transitional connection of the grooves, simultaneously, a water cavity arranged in the pneumatic clamping device on the hydraulic test bench is utilized for water feeding, when water overflows from the water outlet position of a drain pipe on the blocking plate tool, a bevel plug valve in the blocking plate tool is closed, and pressurization is carried out for pressure maintaining, the problem that the pipeline with the groove on one side and the flange on the other side cannot carry out the hydraulic test is solved by utilizing a method which is simple to operate and easy to realize, the test tool is convenient to disassemble and can simultaneously test two test pipelines, the production efficiency is improved, and the practicability is high.
Drawings
FIG. 1 is a perspective view of a front view structure of a hydraulic test method for a pipeline with a groove on one side and a flange on the other side according to the present invention;
FIG. 2 is a perspective view of a support fixture in a hydraulic test method for a pipeline with a groove on one side and a flange on the other side;
FIG. 3 is a perspective view of the front structure of a support fixture in a hydraulic test method for a pipeline with a groove on one side and a flange on the other side according to the present invention;
FIG. 4 is a perspective view of a part of a test tube structure in a hydraulic test method for a pipeline with a groove on one side and a flange on the other side according to the present invention;
FIG. 5 is a perspective view of a test tube assembly suitable for use in a method of hydrostatic testing of a pipeline having a groove on one side and a flange on the other side according to the present invention;
FIG. 6 is a perspective view of a test tube and rubber ring combination structure in a method for testing the hydraulic pressure of a pipeline with a groove on one side and a flange on the other side according to the present invention.
In the figure: 1. a U-shaped metal frame; 2. an annular arc frame; 3. a threaded sleeve; 4. a threaded rod; 5. rotating the handle; 6. a threaded joint; 7. a blocking plate; 8. a silica gel sealing gasket; 9. iron wires; 10. a drain hole; 11. a drain pipe; 12. a test tube; 13. a flange; 14. a trench; 15. a rubber ring; 16. a flexible joint; 17. a hydrostatic test bed; 18. a baffle plate; 19. a pneumatic clamping device; 20. and a supporting base.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a pipeline hydraulic test method suitable for a groove on one side and a flange on the other side comprises the following steps: the U-shaped metal frame 1 is characterized in that an annular radian frame 2 is welded between the bottoms of the U-shaped metal frame 1, a round hole is formed in one side of the outer wall of the U-shaped metal frame 1, a threaded sleeve 3 is fixedly installed on the inner surface wall of the round hole, a threaded rod 4 is rotatably connected to the inner surface wall of the threaded sleeve 3, a threaded wire on the outer surface wall of the threaded rod 4 is matched with a threaded groove in the inner wall of the threaded sleeve 3, an upper joint is fixedly installed on one side of the outer wall of the threaded rod 4, a rotating handle 5 is fixedly inserted in the upper joint, the rotating handle 5 enables the threaded rod 4 connected with the upper joint to provide kinetic energy under manual pulling, the threaded rod rotates and moves in the threaded sleeve 3, a threaded joint 6 is rotatably connected to the outer surface wall of the threaded rod 4, a blocking plate 7 is fixedly installed on one side of the outer wall of the threaded joint 6, a silica gel sealing gasket 8 is arranged on the outer surface wall of the blocking plate 7, and the silica gel sealing gasket 8 is used for improving the sealing performance when the blocking plate 7 is contacted with other components, prevent that the contact point from having great gap, the fixed intercommunication in top of closure plate 7 has drain pipe 11, and the inside of drain pipe 11 is provided with dog-ear cock valve.
According to the illustration in fig. 1-3, the blocking plate 7 and the silica gel sealing gasket 8 are both provided with drain holes 10, the water inlet ends of the two drain holes 10 and the drain pipe 11 are vertically parallel, the two drain holes 10 are located at the middle part of the blocking plate 7 and the silica gel sealing gasket 8, and the two drain holes 10 and the drain pipe 11 are communicated with each other, so that the redundant air in the test tube 12 can be conveniently discharged before the water pressure maintaining.
According to fig. 1 and fig. 4-6, a hydraulic test bed 17 is arranged on one side of the outer wall of the blocking plate 7, a baffle 18 is fixedly arranged on the top of the hydraulic test bed 17, and the baffle 18 is arranged for fixing the outer wall of one of the test tubes 12.
According to the illustration of fig. 1 and fig. 4-6, two test tubes 12 are movably arranged between the opposite sides of the silica gel sealing gasket 8 and the baffle 18, and flanges 13 are fixedly arranged on the opposite sides of the two test tubes 12.
According to the embodiment shown in fig. 1 and fig. 4 to 6, grooves 14 are reserved on opposite sides of two test tubes 12, a rubber ring 15 is movably sleeved between the outer walls of the two grooves 14, and the rubber ring 15 is used for plugging a gap generated between the two grooves 14, so that the sealing performance during the test of the test tubes 12 is improved.
As shown in fig. 1 to 3, the blocking plate 7 and the outer wall of the silicone gasket 8 are fastened together by a set of iron wires 9, and the iron wires 9 are provided to prevent the silicone gasket 8 from falling off the surface of the blocking plate 7 during use.
According to fig. 1 and fig. 4-6, the outer surface wall of one of the two flanges 13 is in contact with the outer wall of the silicone gasket 8, and the other flange 13 passes through the baffle 18 to clamp one of the test tubes 12 inside the baffle 18, so as to determine the position of the two flanges 13 during the test.
According to fig. 1, a support base 20 is fixedly mounted on the top of the hydraulic test bed 17, and a pneumatic clamping device 19 is fixedly mounted inside the support base 20.
According to fig. 1 and 4-6, the outer wall of one of the two flanges 13 is fixedly closed by means of a pneumatic clamping device 19.
According to the drawings shown in fig. 1 and fig. 4-6, two flexible joints 16 are movably sleeved between the outer walls of the two grooves 14, a set of engagement holes are formed in the two flexible joints 16, the inner walls of every two engagement holes are fixed through screws, and the two flexible joints 16 are used for fixing the rubber ring 15 and enabling the inner wall of the rubber ring 15 to be tightly attached to the interface of the two grooves 14.
The effect that its whole equipment reaches is: firstly, determining that an annular radian frame 2 on a U-shaped metal frame 1 can ensure that the diameter of a tested tube 12 is larger than the outer diameter of a flange 13 and smaller than the outer diameter of the flange 13, ensuring that a tube can be fixed on the annular radian frame 2, ensuring that the bottom distance of the U-shaped metal frame 1 is larger than the outer diameter length of the flange 13, a threaded sleeve 3 in the middle of the U-shaped metal frame 1 is used for connecting the axial movement of a threaded rod 4, matching the threaded sleeve 3 with the thread of the threaded rod 4, rotating a rotating handle 5 to drive the threaded rod 4 to rotate in the threaded sleeve 3, enabling a blocking plate 7 provided with a silica gel sealing gasket 8 to gradually contact with the end of a non-sealing surface of the flange 13, realizing the fixation of the blocking plate 7 on one flange 13 surface by utilizing the reaction force of the U-shaped metal frame 1 and the axial pressure of the blocking plate 7, avoiding the need of opening bolt holes, enabling the blocking plate 7 to move axially by utilizing the adjustment of the threaded rod 4, realizing the blocking of one flange 13 surface, the drain pipe 11 and two wash ports 10 internal diameter phase-match, the position of its trompil is close to the center of closure plate 7 to the maximum extent, and be not more than by test tube 12 internal diameter circumference region, guarantee that it can follow drain hole 10 and drain pipe 11 play water direction outflow to suppress water after one of them flange 13 is fixed, then another flange 13 utilizes pneumatic clamping device 19 pneumatic clamping in the support base station 20, establish rubber circle 15 and fix through flexible joint 16 with the surface cover of two slot 14 again, and utilize the built-in water cavity of pneumatic clamping device 19 on the hydrostatic test platform 17 to go on the water, when there is water to spill over in drain pipe 11 play water department on the closure plate 7 frock, close dog-ear plug valve wherein, and pressurize, can realize smoothly that two one side are the hydrostatic test of slot one side for the flange pipeline.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a pipeline hydrostatic test method suitable for one side is slot opposite side is flange which characterized in that: the method comprises the following steps: the device comprises a U-shaped metal frame (1), wherein an annular radian frame (2) is welded between the bottoms of the U-shaped metal frame (1), a round hole is formed in one side of the outer wall of the U-shaped metal frame (1), a threaded sleeve (3) is fixedly installed on the inner surface wall of the round hole, and a threaded rod (4) is rotatably connected to the inner surface wall of the threaded sleeve (3);
the thread wire on the outer surface wall of the threaded rod (4) is matched with the thread groove on the inner wall of the threaded sleeve (3);
an upper joint is fixedly installed on one side of the outer wall of the threaded rod (4), and a rotating handle (5) is fixedly inserted into the upper joint;
the rotating handle (5) is manually pulled to enable the threaded rod (4) connected with the rotating handle to provide kinetic energy and rotate and move in the threaded sleeve (3);
the outer surface wall of the threaded rod (4) is rotatably connected with a threaded joint (6), one side of the outer wall of the threaded joint (6) is fixedly provided with a blocking plate (7), and the outer surface wall of the blocking plate (7) is provided with a silica gel sealing gasket (8);
the silica gel sealing gasket (8) is used for improving the sealing property when the blocking plate (7) is contacted with other components and preventing a larger gap from being formed at a contact point;
the top of the blocking plate (7) is fixedly communicated with a drain pipe (11), and a folding angle cock valve is arranged inside the drain pipe (11).
2. The method for testing the hydraulic pressure of the pipeline with the groove on one side and the flange on the other side as claimed in claim 1, wherein the method comprises the following steps: wash port (10) have all been seted up to the inside of closure plate (7) and sealed pad of silica gel (8), two the end of intaking of wash port (10) and drain pipe (11) is in perpendicular parallel, and two wash ports (10) are located closure plate (7) and sealed pad of silica gel (8) middle part position partially.
3. The method for testing the hydraulic pressure of the pipeline with the groove on one side and the flange on the other side as claimed in claim 1, wherein the method comprises the following steps: a hydraulic test bed (17) is arranged on one side of the outer wall of the blocking plate (7), and a baffle (18) is fixedly mounted at the top of the hydraulic test bed (17).
4. The method as claimed in claim 3, which is suitable for testing the hydraulic pressure of the pipeline with a groove on one side and a flange on the other side, and is characterized in that: the activity is provided with two test tubes (12), two between the relative one side of sealed pad of silica gel (8) and baffle (18) receive equal fixed mounting in one side of carrying on the back of the body of test tube (12) flange (13).
5. The method for testing the hydraulic pressure of the pipeline with the groove on one side and the flange on the other side as claimed in claim 4, wherein the method comprises the following steps: grooves (14) are reserved on the opposite sides of the two test tubes (12), and rubber rings (15) are movably sleeved between the outer walls of the two grooves (14);
the rubber ring (15) is used for plugging a gap generated between the two grooves (14) and improving the sealing performance when the test tube (12) is detected.
6. The method for testing the hydraulic pressure of the pipeline with the groove on one side and the flange on the other side as claimed in claim 1, wherein the method comprises the following steps: and the outer walls of the blocking plate (7) and the silica gel sealing gasket (8) are fastened through a group of iron wires (9).
7. The method for testing the hydraulic pressure of the pipeline with the groove on one side and the flange on the other side as claimed in claim 4, wherein the method comprises the following steps: two the outer surface wall of one of them of flange (13) contacts with the outer wall of the sealed pad (8) of silica gel, and another flange (13) pass baffle (18) and establish one of them inside by test tube (12) card at baffle (18).
8. The method as claimed in claim 3, which is suitable for testing the hydraulic pressure of the pipeline with a groove on one side and a flange on the other side, and is characterized in that: the hydraulic test bed is characterized in that a supporting base platform (20) is fixedly mounted at the top of the hydraulic test bed (17), and a pneumatic clamping device (19) is fixedly mounted inside the supporting base platform (20).
9. The method for testing the hydraulic pressure of the pipeline with the groove on one side and the flange on the other side as claimed in claim 4, wherein the method comprises the following steps: the outer wall of one of the two flanges (13) is fixedly blocked by a pneumatic clamping device (19).
10. The method for testing the hydraulic pressure of the pipeline with the groove on one side and the flange on the other side as claimed in claim 5, wherein the method comprises the following steps: two flexible joints (16) are movably sleeved between the outer surface walls of the two grooves (14), a group of connecting holes are formed in the two flexible joints (16), and the inner surface walls of every two connecting holes are fixed through screws;
the two flexible joints (16) are used for fixing the rubber ring (15), and the inner wall of the rubber ring (15) is tightly attached to the interface of the two grooves (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111563883.3A CN114235311A (en) | 2021-12-20 | 2021-12-20 | Pipeline hydrostatic test method suitable for groove on one side and flange on the other side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111563883.3A CN114235311A (en) | 2021-12-20 | 2021-12-20 | Pipeline hydrostatic test method suitable for groove on one side and flange on the other side |
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| Publication Number | Publication Date |
|---|---|
| CN114235311A true CN114235311A (en) | 2022-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111563883.3A Pending CN114235311A (en) | 2021-12-20 | 2021-12-20 | Pipeline hydrostatic test method suitable for groove on one side and flange on the other side |
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