CN108871941B - Pressure test tool for pipe fitting - Google Patents
Pressure test tool for pipe fitting Download PDFInfo
- Publication number
- CN108871941B CN108871941B CN201810928078.8A CN201810928078A CN108871941B CN 108871941 B CN108871941 B CN 108871941B CN 201810928078 A CN201810928078 A CN 201810928078A CN 108871941 B CN108871941 B CN 108871941B
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- Prior art keywords
- pressure test
- shaped
- pipe fitting
- plate
- pipe
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
Abstract
The invention provides a pressure test tool for a pipe fitting, which is particularly suitable for a pipe without a pipe joint, wherein a used pressure test device comprises a T-shaped groove butt-welded pipe pressure test platform and a pipe clamping device, when the pressure test tool works, movable gears are placed on the left side and the right side of the pressure test pipe fitting, and an adjusting rod penetrates through a long-strip-shaped hole in a fixing plate and is in threaded connection with a sliding block; the end part of the pressure test pipe fitting is sequentially provided with the gasket, the pressure test blind plate and the I-shaped steel, so that the tail end of the adjusting rod is contacted with the I-shaped steel.
Description
Technical Field
The invention relates to the field of pipeline construction, in particular to a pressure test tool for a pipe fitting.
Background
The oil drilling platform tends to be a special marine manufacturing device, the requirement on hydraulic stainless steel pipes is high, most pipelines are in a butt welding connection mode, so a key process in pipeline construction is used as one of main means for checking pipeline welding quality and pipes, whether the welding quality and the pipeline material quality meet the design requirement or not and whether unsafe other factors exist or not are mainly verified, and the key process is a previous key process before the pipeline is put into production and runs.
According to the classification society standard, after the butt welding pipe is prefabricated in a workshop, a pressure test with 1.5 times of design pressure is needed to test the quality of the welding seam as a flange pipe. Because the pipe diameter is different, the difference of material, pressure grade are different, and current butt weld pipe pressure testing frock factor of safety is lower.
The existing pressure testing tool for butt welded pipes has the following defects: (1) the safety is poor, the original process adopts a Noma pipeline connector, the accessory is used as a tool, and a plurality of pipelines are connected together by the accessory to carry out pressure test. Because no effective actual fixing device is provided, the accessories can break loose from the pipeline in the pressure testing process along with the rise of pressure, and the safety of constructors can be ensured only by correct fixing, so that the safety of the whole pressure testing construction is ensured; (2) the material and labor hour are wasted, a part of tooling parts are welded in the old process, the process is to make a pipe 50mm long, a part of tooling parts with flanges for pipelines are welded at the tail end, all pipelines are connected and similar to the pressure test of the flange pipelines, and after the pressure test is finished, the whole pipeline is sent back to a workshop to polish and polish the redundant pipe tooling parts and then send out for galvanizing; (3) the pressure test efficiency is low, because the end ports of the butt-welded pipes cannot be kept on the same straight line when being connected with the connector, the inclined angles with different degrees are formed, so that the uniform stress cannot be ensured when the bolts are tightened, the connector is required to be adjusted repeatedly to ensure the tightness when water leaks from the joint during the pressure test, the pressure test efficiency is low, and the time of welding seams at one position of the pressure test is 3 times of the time of testing a pair of flanges; (4) the operation rules are complicated, and the pipeline pressure test belongs to high-risk operation. In the pressure test construction of the pipeline, if the regulation and the system are not strictly executed, the details of safe construction are not paid attention, and the working wind is not strict, which are often the direct reasons for accidents. The large flange piece screw is smaller than the pressure testing equipment, and the safety of constructors can be ensured only by carrying out safety operation strictly according to operation rules, so that the safety of the whole pressure testing construction is ensured.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a pressure test tool for a pipe fitting, and solve the problems of complicated operation procedures, material waste, labor hour waste, low efficiency, poor safety and the like in the prior art.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a pressure test tool for pipe fittings comprises a T-shaped groove butt-welded pipe pressure test platform and a pipe clamping device, wherein the T-shaped groove butt-welded pipe pressure test platform comprises 4 cylindrical supports and a bottom plate welded and installed above the cylindrical supports, a plurality of T-shaped battens are welded on the bottom plate, a T-shaped groove is formed between the two T-shaped battens, a plurality of oval over-welding holes are uniformly machined in the T-shaped battens, baffles are welded below the peripheral edges of the bottom plate, and triangular base plates are welded at the lower ends of the cylindrical supports; the pipe clamping device comprises a movable gear, an adjusting rod and a T-shaped block, wherein a round hole is formed above the T-shaped block, the movable gear is formed by welding a sliding bottom plate, a fixed plate and a triangular baffle plate, the front end and the rear end above the sliding bottom plate are respectively welded with the triangular baffle plate, the fixed plate is welded on one side of the left side and the right side above the sliding bottom plate, a bolt hole is formed in the sliding bottom plate, and a strip-shaped hole is formed in the middle of the fixed plate; the T-shaped block is arranged in the T-shaped groove, the sliding bottom plate of the movable gear and the T-shaped block are connected through a bolt and a nut, the movable gear is arranged on the left side and the right side of the pressure test pipe fitting during working, the fixed plate of the movable gear is close to the pressure test pipe fitting, and the adjusting rod penetrates through the elongated hole in the fixed plate and is in threaded connection with the sliding block; the end part of the pressure test pipe fitting is sequentially provided with a gasket, a pressure test blind plate and I-shaped steel, the tail end of the adjusting rod is in contact with the I-shaped steel, a clamping sleeve joint is arranged at the pressure test blind plate, and the clamping sleeve joint receives water through a hose to exhaust.
Preferably, the gasket is made of nitrile rubber and is tightly attached to the pressure test blind plate and the pressure test pipe fitting.
As preferred, set up the cushion between the boss in pipe fitting and T type groove, the cushion is semi-circular wood, plays the effect of fixed pipe fitting.
Preferably, the I-steel is made of carbon steel, and the pressure test blind plate is made of carbon steel.
Preferably, the pressure test pipe fitting is a single hydraulic stainless steel pipeline.
The pressure test tool has the advantages that: the operation procedures are simple, and the pressure test can be completed only by matching the blind flange and the gasket which are suitable for the pipeline under the existing conditions of the platform, so that the problems of material waste, labor hour waste and low efficiency are solved; the device has high safety factor, the platform replaces a Noma pipeline connector for connection, the fixing effect is more reliable, the device skillfully uses the movable baffle, can be flexibly used on a pressure test platform, the movable baffle can completely overcome the axial force and the longitudinal force generated in the pressure test process of the pipe, in addition, the movable baffle is arranged in the direction of the elbow of the pipe, so that the pipe is not easy to break loose from the platform in the pressure test process of the pipe more effectively, and the device of the compression screw rod effectively plays a role in adjusting the length in the axial direction and the longitudinal direction; the platform mainly adopts a T-shaped groove, the upper welding hole can play the roles of positioning and weight reduction, the precision is higher, the gap is adjustable, the T-shaped groove of the platform is adjusted by an axially movable baffle, and the bearing capacity is high.
Drawings
FIG. 1 is a schematic structural view of a pressure testing tool;
FIG. 2 is a side view of a pressure testing tool;
FIG. 3 is a top view of the pressure testing tool;
FIG. 4 is a top view of the pressure testing platform;
fig. 5 is a front view of the pressure testing platform.
Wherein: 1. a sliding bottom plate; 2. a bolt; 3. a nut; 4. an adjusting lever; 5. a triangular baffle plate; 6. a fixing plate; 7. i-shaped steel; 8. a gasket; 9. a pressure test blind plate; 10. a ferrule fitting; 11. a T-shaped groove; 12. a base plate; 13. cylindrical support; 14. cushion blocks; 15. a T-shaped block; 16. testing the pressure of the pipe; 17. a slider; 18. t-shaped laths; 19. a baffle plate; 20. triangular backing plate.
Detailed Description
The embodiments of the present invention will be described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout, and the embodiments described below with reference to the drawings are exemplary only and are not to be construed as limiting the invention.
In the description of the present invention, unless otherwise specified and limited, it is to be understood that the terms "mounted," "connected," and "connected" are used broadly and can be, for example, mechanically or electrically connected, or can be internal to two elements, directly connected, or indirectly connected through an intermediate medium. The specific meaning of the above terms can be understood by those of ordinary skill in the art as appropriate.
The pressure test tool for the pipe fitting comprises a T-shaped groove butt-welded pipe pressure test platform and a pipe clamping device, wherein the T-shaped groove butt-welded pipe pressure test platform comprises 4 cylindrical supports 13 and a base plate 12 which is welded and installed above the cylindrical supports 13, a plurality of T-shaped strip plates 18 are welded on the base plate 12, a T-shaped groove 11 is formed between the two T-shaped strip plates 18, a plurality of oval over-welding holes are uniformly machined in the T-shaped strip plates 18, baffle plates 19 are welded below the peripheral edge of the base plate 12, and a triangular base plate 20 is welded at the lower end of each cylindrical support 13; the pipe clamping device comprises a movable gear, an adjusting rod 4 and a T-shaped block 15, a round hole is formed above the T-shaped block 15, the movable gear is formed by welding a sliding bottom plate 1, a fixing plate 6 and a triangular baffle plate 5, the triangular baffle plates 5 are respectively welded at the front end and the rear end above the sliding bottom plate 1, the fixing plate 6 is welded at one side of the left side and the right side above the sliding bottom plate 1, a bolt hole is formed in the sliding bottom plate 1, and a strip-shaped hole is formed in the middle of the fixing plate 6; the T-shaped block 15 is arranged in the T-shaped groove 11, the sliding bottom plate 1 of the movable gear and the T-shaped block 15 are connected through the bolt 2 and the nut 3, the movable gear is arranged on the left side and the right side of the pressure test pipe 16 during working, the fixing plate 6 of the movable gear is close to the pressure test pipe 16, and the adjusting rod 4 penetrates through a long-strip-shaped hole in the fixing plate 6 and is in threaded connection with the sliding block 17; a gasket 8, a pressure test blind plate 9 and an I-shaped steel 7 are sequentially arranged at the end part of the pressure test pipe 26, the tail end of the adjusting rod 4 is in contact with the I-shaped steel 7, a clamping sleeve joint 10 is arranged at the pressure test blind plate 9, and the clamping sleeve joint 10 receives water through a hose to exhaust.
Preferably, the gasket 8 is made of nitrile rubber and is tightly attached to the pressure test blind 9 plate and the pressure test pipe 16.
Preferably, a cushion block 14 is arranged between the pipe 16 and the boss of the T-shaped groove 11, and the cushion block 14 is made of semicircular wood and plays a role of fixing the pipe 16.
Preferably, the I-shaped steel 7 is made of carbon steel, and the pressure test blind plate 9 is made of carbon steel.
Preferably, the pressure test tube 16 is a single hydraulic stainless steel line.
The pressure test tool has the advantages that: the operation procedures are simple, and the pressure test can be completed only by matching the blind flange and the gasket which are suitable for the pipeline under the existing conditions of the platform, so that the problems of material waste, labor hour waste and low efficiency are solved; the device has high safety factor, the platform replaces a Noma pipeline connector for connection, the fixing effect is more reliable, the device skillfully uses the movable baffle, can be flexibly used on a pressure test platform, the movable baffle can completely overcome the axial force and the longitudinal force generated in the pressure test process of the pipe, in addition, the movable baffle is arranged in the direction of the elbow of the pipe, so that the pipe is not easy to break loose from the platform in the pressure test process of the pipe more effectively, and the device of the compression screw rod effectively plays a role in adjusting the length in the axial direction and the longitudinal direction; the platform mainly adopts a T-shaped groove, the upper welding holes can play roles of positioning and reducing weight, the precision is higher, the gap is adjustable, the gap is adjusted by an axially movable baffle in the T-shaped groove of the platform, and the bearing capacity is high.
In the description herein, references to the description of "one embodiment," "an example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (5)
1. The utility model provides a pressure testing frock of pipe fitting which characterized in that: the T-shaped groove butt-welded pipe pressure test platform comprises 4 cylindrical supports and a bottom plate which is arranged above the cylindrical supports in a welding mode, a plurality of T-shaped strips are welded on the bottom plate, a T-shaped groove is formed between the two T-shaped strips, a plurality of oval over-welding holes are uniformly machined in the T-shaped strips, baffles are welded below the peripheral edges of the bottom plate, and triangular base plates are welded at the lower ends of the cylindrical supports; the pipe clamping device comprises a movable gear, an adjusting rod and a T-shaped block, wherein a round hole is formed above the T-shaped block, the movable gear is formed by welding a sliding bottom plate, a fixed plate and a triangular baffle plate, the front end and the rear end above the sliding bottom plate are respectively welded with the triangular baffle plate, the fixed plate is welded on one side of the left side and the right side above the sliding bottom plate, a bolt hole is formed in the sliding bottom plate, and a strip-shaped hole is formed in the middle of the fixed plate; the T-shaped block is arranged in the T-shaped groove, the sliding bottom plate of the movable gear and the T-shaped block are connected through a bolt and a nut, the movable gear is arranged on the left side and the right side of the pipe fitting when the T-shaped groove is in work, the fixing plate of the movable gear is close to the pipe fitting, and the adjusting rod penetrates through the elongated hole in the fixing plate and is in threaded connection with the sliding block; the end part of the pipe fitting is sequentially provided with a gasket, a pressure test blind plate and I-shaped steel, so that the tail end of the adjusting rod is contacted with the I-shaped steel, the pressure test blind plate is provided with a clamping sleeve joint, and the clamping sleeve joint receives water through a hose to exhaust.
2. The pressure test tool according to claim 1, wherein the gasket is made of nitrile rubber and is tightly attached to the pressure test blind plate and the pressure test pipe fitting.
3. The pressure test tool according to claim 1, wherein a cushion block is arranged between the pipe fitting and the boss of the T-shaped groove, and the cushion block is made of semicircular wood and plays a role in fixing the pipe fitting.
4. The pressure test tool according to claim 1, wherein the I-shaped steel is made of carbon steel, and the pressure test blind plate is made of carbon steel.
5. The pressure testing tool of claim 1, wherein the pipe fitting is a single hydraulic stainless steel pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810928078.8A CN108871941B (en) | 2018-08-15 | 2018-08-15 | Pressure test tool for pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810928078.8A CN108871941B (en) | 2018-08-15 | 2018-08-15 | Pressure test tool for pipe fitting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108871941A CN108871941A (en) | 2018-11-23 |
| CN108871941B true CN108871941B (en) | 2022-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810928078.8A Active CN108871941B (en) | 2018-08-15 | 2018-08-15 | Pressure test tool for pipe fitting |
Country Status (1)
| Country | Link |
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| CN (1) | CN108871941B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455634B (en) * | 2019-08-21 | 2022-02-01 | 南京工程学院 | Self-sealing pressure test joint |
| CN111504796B (en) * | 2020-04-29 | 2023-03-17 | 李俊 | Local compressive property detection device for pressure vessel |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5883303A (en) * | 1998-02-10 | 1999-03-16 | Bliss; Brad D. | Apparatus and method for pigging, flooding, and pressure testing pipelines |
| CN201828463U (en) * | 2010-10-27 | 2011-05-11 | 南京宝色股份公司 | Hydraulic testing device of pipeline |
| CN102721605A (en) * | 2012-06-19 | 2012-10-10 | 茂名重力石化机械制造有限公司 | Pressure testing tool for opening connecting tubes without flange seal |
| CN203743714U (en) * | 2014-01-22 | 2014-07-30 | 重庆工业设备安装集团有限公司 | Pipe end sealing and pressure testing tool of plastic water feeding pipeline |
| 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 |
| CN108132129A (en) * | 2017-12-20 | 2018-06-08 | 何志方 | A kind of pipeline valve pressure testing device |
-
2018
- 2018-08-15 CN CN201810928078.8A patent/CN108871941B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5883303A (en) * | 1998-02-10 | 1999-03-16 | Bliss; Brad D. | Apparatus and method for pigging, flooding, and pressure testing pipelines |
| CN201828463U (en) * | 2010-10-27 | 2011-05-11 | 南京宝色股份公司 | Hydraulic testing device of pipeline |
| CN102721605A (en) * | 2012-06-19 | 2012-10-10 | 茂名重力石化机械制造有限公司 | Pressure testing tool for opening connecting tubes without flange seal |
| CN203743714U (en) * | 2014-01-22 | 2014-07-30 | 重庆工业设备安装集团有限公司 | Pipe end sealing and pressure testing tool of plastic water feeding pipeline |
| 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 |
| CN108132129A (en) * | 2017-12-20 | 2018-06-08 | 何志方 | A kind of pipeline valve pressure testing device |
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| Publication number | Publication date |
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| CN108871941A (en) | 2018-11-23 |
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Effective date of registration: 20221228 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. |