CN109163862A - A kind of pressure-measuring method of pipe fitting - Google Patents
A kind of pressure-measuring method of pipe fitting Download PDFInfo
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- CN109163862A CN109163862A CN201810928077.3A CN201810928077A CN109163862A CN 109163862 A CN109163862 A CN 109163862A CN 201810928077 A CN201810928077 A CN 201810928077A CN 109163862 A CN109163862 A CN 109163862A
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- pressure testing
- pressure
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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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention provides a kind of pressure-measuring methods of pipe fitting, it is particularly suitable for no pipe fitting pipe, the pressure testing device used includes T-slot butt welded tube pressure testing platform and tube fixture, movable shelves are placed at left and right sides of pressure testing pipe when work, adjustment bar passes through elongate holes and sliding block threaded connection in fixed plate；Gasket is successively installed in the end of pressure testing pipe, PRESSURE TESTING BLIND FLANGE and I-steel, contact adjustment bar end with I-steel, it is cumbersome that the present invention solves existing operating instruction, waste material and labor hour, it is inefficient, the problems such as safety is poor, operating instruction is simple, using this platform existence conditions, pressure testing can be completed in the blank flange and gasket for only needing collocation to match with pipeline, solve waste material, the problem of labor hour and low efficiency, safety coefficient is high, thus platform is connected instead of Norma's pipe jointer, fixed effect is more reliable, present apparatus ingenious use active catch, it can flexibly be used on pressure testing platform.
Description
Technical field
The present invention relates to pipeline construction fields, more particularly to a kind of pressure-measuring method of pipe fitting.
Background technique
Oil drilling platform tends to a kind of special ocean manufacturing equipment, and hydraulic stainless steel tube requirement used is very high, greatly
Part pipeline all uses butt welding linked vector graph, therefore one of critical process in pipeline construction, as inspection pipeline welding quality
One of with the main means of tubing, mainly whether verifying welding quality and pipeline material quality, pressure-bearing range meet design
It is required that and discovered whether unsafe other factors, be that in-pipe inspection robot runs preceding one of critical process.
According to classification society rule, after butt welded tube is prefabricated in workshop internal field, as flanged pipe, 1.5 times of designs need to be carried out
The pressure testing of pressure examines weldquality.Due to the difference of caliber, difference, the pressure rating of material are different, existing docking
Welded tube pressure-measuring method safety coefficient is lower.
Existing butt welded tube pressure-measuring method has following defect: (1) safety is poor, and old technology uses Norma's pipe jointer,
Tooling is done with this attachment, after many pipelines are connected together with the attachment, carries out pressure testing.Due to no effectively practical fixed
Device may cause during pressure testing with the raising of pressure, and attachment is shaken off from pipeline, only correctly fixed, ability
Ensure construction personnel's safety, it is ensured that entire pressure testing construction safety；(2) material and labor hour are wasted, old technology is using welding one
Part tool part, this technique is pipe to be done to long 50mm, and weld the tool part of a part of pipeline addition orchid in end, then by institute
There is piping connection similar with flange pipe pressure testing, after pressure testing, sends entire pipeline back to workshop for extra pipe tooling
It is seen off after part polishing, polishing zinc-plated；(3) pressure testing is inefficient, can not protect when connecting because of butt welded tube subport with connector
Hold has different degrees of tilt angle on the same line, causes not can guarantee uniform force when screwde on, and when pressure testing connects
Locate leak, needing to adjust connector repeatedly just can guarantee leakproofness, pressure testing inefficiency, and the time of weld seam is pressure testing at pressure testing one
3 times of the time of a pair of of flange；(4) operating instruction is cumbersome, and pipeline pressure test belongs to high-risk operation.In pipeline pressure test construction,
If not being very strict about rules, the details of safe construction is not focused on, the style of work is not rigorous, what these often caused the accident
Immediate cause.Pressure testing equipment is arrived greatly, and small to one piece flange plate screw only carries out safety operation in strict accordance with operating instruction,
It can ensure that construction personnel's safety, it is ensured that entire pressure testing construction safety.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of pressure-measuring methods of pipe fitting, and it is numerous to solve existing operating instruction
It is trivial, waste material and labor hour, it is inefficient, safety is poor the problems such as.
In order to solve the above technical problems, the technical scheme adopted by the invention is that: a kind of pressure-measuring method of pipe fitting, pressure testing side
The pressure testing device that method uses includes T-slot butt welded tube pressure testing platform and tube fixture, the T-slot butt welded tube pressure testing
Platform includes that 4 cylindrical supports and welding are mounted on bottom plate above cylindrical support, welds multiple T-type battens on bottom plate, and two
T-slot is constituted between a T-type batten, and multiple ellipses are uniformly processed on T-type batten and cross welding hole, below the edge of bottom plate
It is welded with baffle, triangle backing plate is welded in cylindrical support lower end；The tube fixture includes movable shelves, adjusts bar and T-block,
Circular hole is set above T-block, and the activity shelves are welded by sliding floor, fixed plate, triangle plate washer, on sliding floor
Triangular baffle is respectively welded in the rear and front end of side, and the side at left and right sides of the top of sliding floor is welded with fixed plate, sliding
Bolt hole is set on bottom plate, and an elongate holes are arranged in position among fixed plate；T-block is placed in T-slot, passes through bolt, spiral shell
Movable shelves are placed at left and right sides of pressure testing pipe when work, make movable shelves by the sliding floor and T-block of female connection activity shelves
Fixed plate adjusts elongate holes and sliding block of the bar in fixed plate and is threadedly coupled close to pressure testing pipe；At the end of pressure testing pipe
Gasket, PRESSURE TESTING BLIND FLANGE and I-steel are successively installed by portion, contact adjustment bar end with I-steel, connect at PRESSURE TESTING BLIND FLANGE equipped with cutting ferrule
Head, ferrule fitting are vented by hose water receiving, specific pressure-measuring method the following steps are included:
S1, it is ready to the T-slot butt welded tube pressure testing platform is clean, platform shifts to an earlier date coating butter, according to butt welding
Cushion block is suitably positioned by pipe pressure testing pipe length in advance；
S2, will pressure testing pipe place with cushion block on；
S3, T-block is put into T-slot, movable shelves is placed into pressure testing pipe left end, holding activity shelves are in pipe fitting two
Bolt is passed through the bolt hole on the bolt hole and T-block of sliding floor, locking nut by side middle position；
S4, according to pipe fitting height, adjust sliding block to the center of pressure testing pipe, bar will be adjusted and pass through strip in fixed plate
Hole and sliding block are threadedly coupled；
S5, gasket, PRESSURE TESTING BLIND FLANGE and I-steel are successively installed in the end of pressure testing pipe, connect adjustment bar end with I-steel
Touching；
S6, each component in right side is equally installed according to left side installation steps, adjustment right side adjustment bar is until immovable；
S7, the bolt of bottom, nut are tightened, if having activity to adjust bar by two sides carries out fine adjustments size；
S8, start formal pressure testing, filled the water by right side ferrule fitting hose, after filling water exhaust, the close property in left side is tested, pressure testing
Pressure is 1.5 times of design pressure.
Preferably, the material of gasket is nitrile rubber, fitted closely with PRESSURE TESTING BLIND FLANGE and pressure testing pipe.
Preferably, cushion block is arranged between pipe fitting and the boss of T-slot, the cushion block is semicircle wood, is played solid
Determine the effect of pipe fitting.
Preferably, the I-steel is carbon steel material, the PRESSURE TESTING BLIND FLANGE is carbon steel material.
Preferably, pressure testing pipe is single hydraulic stainless steel pipeline.
The advantages of this pressure-measuring method is invented is: operating instruction is simple, using this platform existence conditions, it is only necessary to collocation and pipeline
Pressure testing can be completed in the blank flange and gasket matched, solves the problems, such as waste material, labor hour and low efficiency；Safety system
Number is high, and thus platform replaces the connection of Norma's pipe jointer, and fixed effect is more reliable, present apparatus ingenious use active catch, can be with
It is flexibly used on pressure testing platform, which can overcome axial force, the longitudinal force generated during pipe pressure test completely, separately
Outer pipe bend direction, which is also provided with active catch, can more effectively make to be not easy to shake off from platform during pipe pressure test, have
This device of clamping screw, effectively plays the corrective action of axial direction, longitudinal direction length；This platform mainly uses T-type
Slot, welding hole excessively above can play the role of positioning, mitigate weight, and precision is higher and gap is adjustable, and the T-slot of platform is by one
Axially movable active catch adjusts gap, large carrying capacity.
Detailed description of the invention
The step of Fig. 1 is pressure-measuring method of the present invention is schemed；
Fig. 2 is the structural schematic diagram of structure for pressure test；
Fig. 3 is the side view of structure for pressure test；
Fig. 4 is the top view of structure for pressure test；
Fig. 5 is the top view of pressure testing platform；
Fig. 6 is the main view of pressure testing platform.
Wherein: 1, sliding floor；2, bolt；3, nut；4, bar is adjusted；5, triangular baffle；6, fixed plate；7, I-steel；
8, gasket；9, PRESSURE TESTING BLIND FLANGE；10, ferrule fitting；11, T-slot；12, bottom plate；13, cylindrical support；14, cushion block；15, T-block；
16, pressure testing pipe；17, sliding block；18, T-type batten；19, baffle；20, triangle backing plate.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, unless otherwise specified and limited, it should be noted that term " installation ", " connected ",
" connection " shall be understood in a broad sense, for example, it may be mechanical connection or electrical connection, the connection being also possible to inside two elements can
It, can also be indirectly connected through an intermediary to be to be connected directly.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term.
Referring to figs. 1 to a kind of pressure-measuring method of pipe fitting of the embodiment of the present invention of Fig. 6 description, the pressure testing that pressure-measuring method uses
Device includes T-slot butt welded tube pressure testing platform and tube fixture, and the T-slot butt welded tube pressure testing platform includes 4
Cylindrical support 13 and welding are mounted on the bottom plate 12 of the top of cylindrical support 13, weld multiple T-type battens 18 on bottom plate 12, and two
T-slot 11 is constituted between T-type batten 18, and multiple ellipses are uniformly processed on T-type batten 18 and cross welding hole, in the surrounding of bottom plate 12
Baffle 19 is welded with below edge, triangle backing plate 20 is welded in 13 lower end of cylindrical support；The tube fixture includes movable shelves, adjusts
Circular hole is arranged in whole bar 4 and T-block 15 above T-block 15, and the activity shelves are by sliding floor 1, fixed plate 6, triangle plate washer 5
It is welded, triangular baffle 5 is respectively welded in the rear and front end above sliding floor 1, at left and right sides of the top of sliding floor 1
Side be welded with fixed plate 6, bolt hole is set on sliding floor 1, and an elongate holes are arranged in the intermediate position of fixed plate 6；T-type
Block 15 is placed in T-slot 11, and by bolt 2, the sliding floor 1 and T-block 15 of 3 connection activity shelves of nut, when work will be movable
Shelves are placed into 16 left and right sides of pressure testing pipe, make the fixed plate 6 of movable shelves close to pressure testing pipe 16, adjust bar 4 and pass through fixed plate 6
On elongate holes and sliding block 17 be threadedly coupled；Gasket 8, PRESSURE TESTING BLIND FLANGE 9 and I-shaped are successively installed in the end of pressure testing pipe 26
Steel 7 contacts adjustment 4 end of bar with I-steel 7, ferrule fitting 10 is equipped at PRESSURE TESTING BLIND FLANGE 9, and ferrule fitting 10 is connect by hose
Water is vented, specific pressure-measuring method the following steps are included:
S1, it is ready to the T-slot butt welded tube pressure testing platform is clean, platform shifts to an earlier date coating butter, according to butt welding
Cushion block 14 is suitably positioned by 16 length of pipe pressure testing pipe in advance；
S2, will pressure testing pipe 16 place with cushion block 14 on；
S3, T-block 15 is put into T-slot 11, movable shelves is placed into 16 left end of pressure testing pipe, holding activity shelves are in
Bolt 2 is passed through the bolt hole on the bolt hole and T-block 15 of sliding floor 1, locking nut 3 by 16 two sides middle position of pipe fitting；
S4, according to the height of pipe fitting 16, adjustment sliding block 17 to the center of pressure testing pipe 16 passes through adjustment bar 46 in fixed plate
Elongate holes and sliding block 17 be threadedly coupled；
S5, gasket 8, PRESSURE TESTING BLIND FLANGE 9 and I-steel 7 are successively installed in the end of pressure testing pipe 16, make to adjust 4 end of bar and I-shaped
Steel 7 contacts；
S6, each component in right side is equally installed according to left side installation steps, adjustment right side adjustment bar 4 is until immovable；
S7, the bolt 2 of bottom, nut 3 are tightened, if having activity to adjust bar 4 by two sides carries out fine adjustments size；
S8, start formal pressure testing, filled the water by 10 hose of right side ferrule fitting, after filling water exhaust, the close property in left side is tested, examination
Pressure pressure is 1.5 times of design pressure.
Preferably, the material of gasket 8 is nitrile rubber, fitted closely with blind 9 plate of pressure testing and pressure testing pipe 16.
Preferably, cushion block 14 is arranged between pipe fitting 16 and the boss of T-slot 11, the cushion block 14 is semicircle wood
Head plays the role of fixed pipe fitting 16.
Preferably, the I-steel 7 is carbon steel material, the PRESSURE TESTING BLIND FLANGE 9 is carbon steel material.
Preferably, pressure testing pipe 16 is single hydraulic stainless steel pipeline.
The advantages of this pressure testing device is invented is: operating instruction is simple, using this platform existence conditions, it is only necessary to collocation and pipeline
Pressure testing can be completed in the blank flange and gasket matched, solves the problems, such as waste material, labor hour and low efficiency；Safety system
Number is high, and thus platform replaces the connection of Norma's pipe jointer, and fixed effect is more reliable, present apparatus ingenious use active catch, can be with
It is flexibly used on pressure testing platform, which can overcome axial force, the longitudinal force generated during pipe pressure test completely, separately
Outer pipe bend direction, which is also provided with active catch, can more effectively make to be not easy to shake off from platform during pipe pressure test, have
This device of clamping screw, effectively plays the corrective action of axial direction, longitudinal direction length；This platform mainly uses T-type
Slot, welding hole excessively above can play the role of positioning, mitigate weight, and precision is higher and gap is adjustable, and the T-slot of platform is by one
Axially movable active catch adjusts gap, large carrying capacity.
In the description of this specification, the description meaning of reference term " one embodiment ", " example " or " some examples " etc.
Refer to that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or show
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples
It can be combined in any suitable manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (5)
1. a kind of pressure-measuring method of pipe fitting, it is characterised in that: the pressure testing device that pressure-measuring method uses includes the examination of T-slot butt welded tube
Flattening bench and tube fixture, the T-slot butt welded tube pressure testing platform include that 4 cylindrical supports and welding are mounted on cylinder
The bottom plate for supporting top, welds multiple T-type battens on bottom plate, constitutes T-slot between two T-type battens, on T-type batten uniformly
It processes multiple ellipses and crosses welding hole, baffle is welded with below the edge of bottom plate, triangle backing plate is welded in cylindrical support lower end；
The tube fixture includes movable shelves, adjustment bar and T-block, circular hole is arranged above T-block, the activity shelves are by sliding
Bottom plate, fixed plate, triangle plate washer are welded, and triangular baffle is respectively welded in the rear and front end above sliding floor, are sliding
Side at left and right sides of the top of bottom plate is welded with fixed plate, and bolt hole is arranged on sliding floor, position setting among fixed plate
One elongate holes；T-block is placed in T-slot, by bolt, the sliding floor and T-block of nut connection activity shelves, when work
Movable shelves are placed at left and right sides of pressure testing pipe, makes the fixed plate of movable shelves close to pressure testing pipe, adjusts bar and pass through fixed plate
On elongate holes and sliding block be threadedly coupled；Gasket, PRESSURE TESTING BLIND FLANGE and I-steel are successively installed in the end of pressure testing pipe, make to adjust
Whole bar end is contacted with I-steel, and ferrule fitting is equipped at PRESSURE TESTING BLIND FLANGE, and ferrule fitting is vented by hose water receiving, specific to try
Pressure method the following steps are included:
S1, it is ready to the T-slot butt welded tube pressure testing platform is clean, platform shifts to an earlier date coating butter, according to butt welding
Cushion block is suitably positioned by pipe pressure testing pipe length in advance；
S2, will pressure testing pipe place with cushion block on；
S3, T-block is put into T-slot, movable shelves is placed into pressure testing pipe left end, holding activity shelves are in pipe fitting two
Bolt is passed through the bolt hole on the bolt hole and T-block of sliding floor, locking nut by side middle position；
S4, according to pipe fitting height, adjust sliding block to the center of pressure testing pipe, bar will be adjusted and pass through strip in fixed plate
Hole and sliding block are threadedly coupled；
S5, gasket, PRESSURE TESTING BLIND FLANGE and I-steel are successively installed in the end of pressure testing pipe, connect adjustment bar end with I-steel
Touching；
S6, each component in right side is equally installed according to left side installation steps, adjustment right side adjustment bar is until immovable；
S7, the bolt of bottom, nut are tightened, if having activity to adjust bar by two sides carries out fine adjustments size；
S8, start formal pressure testing, filled the water by right side ferrule fitting hose, after filling water exhaust, the close property in left side is tested, pressure testing
Pressure is 1.5 times of design pressure.
2. pressure-measuring method according to claim 1, which is characterized in that the gasket material is nitrile rubber, blind with pressure testing
Plate) and pressure testing pipe fit closely.
3. pressure-measuring method according to claim 1, which is characterized in that cushion block is set between pipe fitting and the boss of T-slot,
The cushion block is semicircle wood, plays the role of fixed pipe fitting.
4. pressure-measuring method according to claim 1, which is characterized in that the I-steel is carbon steel material, and the pressure testing is blind
Plate is carbon steel material.
5. pressure-measuring method according to claim 1, which is characterized in that the pressure testing pipe is single hydraulic stainless steel tube
Road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810928077.3A CN109163862B (en) | 2018-08-15 | 2018-08-15 | Pressure testing method for pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810928077.3A CN109163862B (en) | 2018-08-15 | 2018-08-15 | Pressure testing method for pipe fitting |
Publications (2)
| Publication Number | Publication Date |
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| CN109163862A true CN109163862A (en) | 2019-01-08 |
| CN109163862B CN109163862B (en) | 2022-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810928077.3A Active CN109163862B (en) | 2018-08-15 | 2018-08-15 | Pressure testing method for pipe fitting |
Country Status (1)
| Country | Link |
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| CN (1) | CN109163862B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109655217A (en) * | 2019-02-12 | 2019-04-19 | 天津城建大学 | A kind of beam test beam end support |
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| CN107116361A (en) * | 2017-04-25 | 2017-09-01 | 中国化学工程第三建设有限公司 | The pressure testing of Steam Turbine jet chimney entirety, overall Stressless Pipeline Connection construction method |
| CN207147731U (en) * | 2017-07-14 | 2018-03-27 | 招商局重工（江苏）有限公司 | A kind of frock of more TUBING pipes pressure testing simultaneously |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160370249A1 (en) * | 2008-08-15 | 2016-12-22 | Securus, Inc. | Pipe pressure testing method and apparatus |
| CN104062085A (en) * | 2013-03-21 | 2014-09-24 | 中国石油天然气集团公司 | Pressure testing apparatus of pipeline blocking valve |
| CN203551274U (en) * | 2013-11-25 | 2014-04-16 | 中国西电电气股份有限公司 | Operating platform tool used for component hydraulic pressure test |
| CN204302107U (en) * | 2014-12-25 | 2015-04-29 | 安源管道实业有限公司 | The pressure testing device of inspection tubing and bend pipe tools |
| CN204831932U (en) * | 2015-07-16 | 2015-12-02 | 三门峡化工机械有限公司 | New utensil of heat exchange tube compression test |
| CN107116361A (en) * | 2017-04-25 | 2017-09-01 | 中国化学工程第三建设有限公司 | The pressure testing of Steam Turbine jet chimney entirety, overall Stressless Pipeline Connection construction method |
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| CN109655217A (en) * | 2019-02-12 | 2019-04-19 | 天津城建大学 | A kind of beam test beam end support |
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| CN109163862B (en) | 2022-04-01 |
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Effective date of registration: 20230112 Address after: 226100 No. 1, Xin'anjiang Road, Binjiang street, Haimen District, Nantong City, Jiangsu Province Patentee after: CHINA MERCHANTS HEAVY INDUSTRY (JIANGSU) Co.,Ltd. Patentee after: China Merchants Jinling shipping (Nanjing) Co.,Ltd. Address before: 226100 Xin'anjiang Road, Binjiang Street, Haimen City, Nantong City, Jiangsu Province Patentee before: CHINA MERCHANTS HEAVY INDUSTRY (JIANGSU) Co.,Ltd. |
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