CN106404576A - Thread compression type in-circular-pipe test section device - Google Patents
Thread compression type in-circular-pipe test section device Download PDFInfo
- Publication number
- CN106404576A CN106404576A CN201610712244.1A CN201610712244A CN106404576A CN 106404576 A CN106404576 A CN 106404576A CN 201610712244 A CN201610712244 A CN 201610712244A CN 106404576 A CN106404576 A CN 106404576A
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- China
- Prior art keywords
- pipe
- testpieces
- outer sleeve
- test section
- keeper
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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
- G01N3/56—Investigating resistance to wear or abrasion
- G01N3/567—Investigating resistance to wear or abrasion by submitting the specimen to the action of a fluid or of a fluidised material, e.g. cavitation, jet abrasion
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a thread compression type in-circular-pipe test section device comprising an outer sleeve, a test piece, a test piece positioning piece, an elastic gasket, a thread compression pipe and a measuring point joint; the test piece, the test piece positioning piece, the elastic gasket and the thread compression pipe are located in the outer sleeve, and the measuring point joint is arranged on the outer sleeve. A stopping shoulder, the elastic gasket, a first positioning piece, the test piece, a second positioning piece and the thread compression pipe are arranged in sequence along the axial direction of the outer sleeve. The external thread of the thread compression pipe and the inner thread of the outer sleeve are in threaded connection. The test piece is compressed by use of the thread compression pipe, the test piece is convenient to fix and disassembly; the thread compression type in-circular-pipe test section device can be applied to in-circular-pipe surface morphology analysis tests, at the same time, during monitoring of in-circular-pipe erosion corrosion situations, two-phase flow wear effects and other test operating conditions, by use of the thread compression pipe for unilateral compression and use of the elastic gasket for adjustment of compression degree, looseness of the test piece in a test process can be avoided.
Description
Technical field
The present invention relates to test section in pipe, in particular it relates to test section apparatus in screw pressing tight type pipe.
Background technology
Power plant's drainage system of heater, feed pump recycle, condensate pump recycles, oxygen-eliminating device overflows the tune of pipeline such as discharges water
After section valve, the aqueous medium of supercooling by the contracting stream effect of regulating valve (or reducing valve opening) due to being recovered by low-pressure and is rubbed
Wipe, cause water flow pressure to reduce, if can not recover after flowing through regulating valve to more than corresponding saturation pressure, will dodge in downstream
Steam, the vapour phase content occurring in the pipeline after regulating valve in stream-liquid two-phase flow, and downstream line will increase sharply.Vapour in pipeline
Liquid two-phase moves and will differ from conventional runner single-phase liquid, and longtime running will wash away to valve element and downstream tube cornice, forms volume
Outer abrasion.
Content of the invention
For defect of the prior art, it is an object of the invention to provide test section dress in a kind of screw pressing tight type pipe
Put.
Test section apparatus according in a kind of screw pressing tight type pipe that the present invention provides, including outer sleeve, testpieces, examination
Test part keeper, elastomeric pad, screw thread press pipe and measuring point joint；
Testpieces, testpieces keeper, elastomeric pad, screw thread press pipe and are respectively positioned in outer sleeve；
On measuring point joint sleeve pipe mounted externally.
Preferably, the inwall of outer sleeve is formed with shoulder block；Testpieces keeper includes the first keeper, the second positioning
Part；
The externally axial direction of sleeve pipe, shoulder block, elastomeric pad, the first keeper, testpieces, the second keeper, screw thread press
Pipe sets gradually.
Preferably, screw thread presses and threadeds between the external screw thread of pipe and the internal thread of outer sleeve；
When screw thread press pipe to outer sleeve inside screw in when, can coordinate with shoulder block, jointly compress elastomeric pad, first
Keeper, testpieces, the second keeper are so that the position of testpieces and outer sleeve is relatively fixed.
Preferably, the inside of measuring point fittings outer sleeve.
Preferably, testpieces adopts circular arc sheet；The inwall of outer sleeve and straight tube or include pipe and match.
Preferably, it is connected using engagement system between testpieces and testpieces keeper.
Preferably, screw thread presses the outer face of pipe and is provided with fixing hole.
Preferably, testpieces a size of thickness 3mm, length is 30mm, and radian adopts 30 ° to 45 °.
Compared with prior art, the present invention has following beneficial effect：
1st, the present invention can press pipe as the test section being applied to pipeline Gas- liquid two-phase flow pilot system using screw thread
Compression testpieces, is easy to fixing and dismantles；
2 present invention can apply to the analysis of pipe internal surface shape is tested, simultaneously for the internal erosion corrosion feelings of monitoring pipe
The operating condition of test such as condition, two-phase flow abrasive effect, it has quick detachable, easily replacing, is easily analyzed, easily carries out material control
The advantages of processed, avoid the transformation to pipeline and adjustment to a certain extent.
3rd, the present invention presses the unilateral compression of pipe using screw thread, adjusts compression degree by elastomeric pad, thus avoiding testing
Part loosens in process of the test.
Brief description
The detailed description with reference to the following drawings, non-limiting example made by reading, the further feature of the present invention,
Objects and advantages will become more apparent upon：
Fig. 1 is the structural representation of test section apparatus in the screw pressing tight type pipe being applied to straight tube.
Fig. 2 is the structural representation of test section apparatus in the screw pressing tight type pipe being applied to expander.
Fig. 3 is the engaging structure schematic diagram between testpieces and testpieces keeper.
In figure：
1- outer sleeve
2- testpieces
3- testpieces keeper
301- first keeper
302- second keeper
4- elastomeric pad
5- screw thread presses pipe
6- measuring point joint
Specific embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, some changes and improvements can also be made.These broadly fall into the present invention
Protection domain.
As shown in Figure 1, Figure 2, Figure 3 shows, section apparatus are tested in a kind of screw pressing tight type pipe according to present invention offer, including
Outer sleeve, testpieces, testpieces keeper, elastomeric pad, screw thread press pipe and measuring point joint.Testpieces, testpieces are fixed
Position part, elastomeric pad, screw thread press pipe and are respectively positioned in outer sleeve；On measuring point joint sleeve pipe mounted externally.Testpieces positions
Part can adopt different size design according to test demand.
The inwall of outer sleeve is formed with shoulder block；Testpieces keeper includes the first keeper, the second keeper；Externally
The axial direction of sleeve pipe, shoulder block, elastomeric pad, the first keeper, testpieces, the second keeper, screw thread press pipe and set gradually.Screw thread
Press and threaded between the external screw thread of pipe and the internal thread of outer sleeve；When screw thread press pipe to outer sleeve inside screw in
When, can coordinate with shoulder block, jointly compression elastomeric pad, the first keeper, testpieces, the second keeper so that testpieces with
The position of outer sleeve is relatively fixed.Testpieces adopts circular arc sheet；The inwall of outer sleeve and straight tube or include pipe phase
Join.It is connected using engagement system between testpieces and testpieces keeper, need ± 0.05 machining accuracy.
In described screw pressing tight type pipe, test section apparatus are mainly used in pipe system in the range of 32～200mm for the caliber
On system；Whole test section adopts flange to connect, and flange specification is GB/T20592-2009.Measuring point fittings outer sleeve interior
Portion.For example, outer sleeve is designed with temperature and pressure measuring point hole, can directly be threadeded with temperature and pressure measuring point joint.Screw thread presses
The outer face of pipe is provided with fixing hole.For example, screw thread presses the circular hole being drilled with four diameter 2mm on the outer face of pipe, main work
With being screwed using apparatus for convenience or being unscrewed.
Preferably, testpieces a size of thickness 3mm, length is 30mm, and radian adopts 30 ° to 45 °.For example, testpieces is adopted
Use circular arc thin slice, its radian is common to adopt 45 ° of radian designs, for interior caliber>The test section of 100mm, can adopt 30 ° of radians
Design.For the enlarging test section shown in Fig. 2, compatibility test part keeper, expander angle can be according to test demand at 0 °～10 °
Between be configured.
Above the specific embodiment of the present invention is described.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make a variety of changes within the scope of the claims or change, this not shadow
Ring the flesh and blood of the present invention.In the case of not conflicting, feature in embodiments herein and embodiment can any phase
Mutually combine.
Claims (8)
1. test section apparatus in a kind of screw pressing tight type pipe it is characterised in that inclusion outer sleeve, testpieces, testpieces are fixed
Position part, elastomeric pad, screw thread press pipe and measuring point joint；
Testpieces, testpieces keeper, elastomeric pad, screw thread press pipe and are respectively positioned in outer sleeve；
On measuring point joint sleeve pipe mounted externally.
2. in screw pressing tight type pipe according to claim 1 test section apparatus it is characterised in that the inwall of outer sleeve
It is formed with shoulder block；Testpieces keeper includes the first keeper, the second keeper；
The externally axial direction of sleeve pipe, shoulder block, elastomeric pad, the first keeper, testpieces, the second keeper, screw thread press Guan Yi
Secondary setting.
3. test section apparatus in screw pressing tight type pipe according to claim 2 it is characterised in that screw thread presses the outer of pipe
Threaded between screw thread and the internal thread of outer sleeve；
When screw thread press pipe to outer sleeve inside screw in when, can coordinate with shoulder block, jointly compression elastomeric pad, first position
Part, testpieces, the second keeper are so that the position of testpieces and outer sleeve is relatively fixed.
4. in screw pressing tight type pipe according to claim 1 test section apparatus it is characterised in that outside measuring point fittings
The inside of parts casing pipe.
5. test section apparatus in screw pressing tight type pipe according to claim 1 it is characterised in that testpieces adopts circular arc
Shape sheet；The inwall of outer sleeve and straight tube or include pipe and match.
6. in screw pressing tight type pipe according to claim 1 test section apparatus it is characterised in that testpieces and testpieces
Engagement system is adopted to connect between keeper.
7. test section apparatus in screw pressing tight type pipe according to claim 3 it is characterised in that screw thread presses the outer of pipe
End face is provided with fixing hole.
8. test section apparatus in screw pressing tight type pipe according to claim 5 it is characterised in that testpieces is a size of thick
Degree 3mm, length is 30mm, and radian adopts 30 ° to 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610712244.1A CN106404576A (en) | 2016-08-23 | 2016-08-23 | Thread compression type in-circular-pipe test section device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610712244.1A CN106404576A (en) | 2016-08-23 | 2016-08-23 | Thread compression type in-circular-pipe test section device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106404576A true CN106404576A (en) | 2017-02-15 |
Family
ID=58005126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610712244.1A Pending CN106404576A (en) | 2016-08-23 | 2016-08-23 | Thread compression type in-circular-pipe test section device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106404576A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107561145A (en) * | 2017-07-13 | 2018-01-09 | 中国电力科学研究院 | Corrosion test chamber |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4381800A (en) * | 1981-08-31 | 1983-05-03 | Thaxton Inc. | Pipe tester plug |
| CN101825543A (en) * | 2010-04-02 | 2010-09-08 | 浙江理工大学 | Circuit-type multiphase flow photoelectric image monitoring erosion test equipment |
| CN201653813U (en) * | 2009-09-30 | 2010-11-24 | 中国石油乌鲁木齐石油化工总厂 | Rigid circular pipe pressure testing connection device |
| CN102684032A (en) * | 2012-05-19 | 2012-09-19 | 林锐涛 | Pipe bus connection method |
| CN103674822A (en) * | 2013-11-29 | 2014-03-26 | 陕西延长石油(集团)有限责任公司研究院 | Gas and liquid two-phase flow loop corrosion experiment device |
| CN103728195A (en) * | 2014-01-15 | 2014-04-16 | 中国石油大学(华东) | Multiphase flow scouring corrosion simulation test device for rotary loop |
| CN105202963A (en) * | 2015-09-29 | 2015-12-30 | 茂名重力石化机械制造有限公司 | Non-welding forced sealing structure for heat exchange tube and tube plate |
| CN205001692U (en) * | 2015-09-30 | 2016-01-27 | 甘志宏 | A seal structure for bayonet pipeline clamp locking joint |
-
2016
- 2016-08-23 CN CN201610712244.1A patent/CN106404576A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4381800A (en) * | 1981-08-31 | 1983-05-03 | Thaxton Inc. | Pipe tester plug |
| CN201653813U (en) * | 2009-09-30 | 2010-11-24 | 中国石油乌鲁木齐石油化工总厂 | Rigid circular pipe pressure testing connection device |
| CN101825543A (en) * | 2010-04-02 | 2010-09-08 | 浙江理工大学 | Circuit-type multiphase flow photoelectric image monitoring erosion test equipment |
| CN102684032A (en) * | 2012-05-19 | 2012-09-19 | 林锐涛 | Pipe bus connection method |
| CN103674822A (en) * | 2013-11-29 | 2014-03-26 | 陕西延长石油(集团)有限责任公司研究院 | Gas and liquid two-phase flow loop corrosion experiment device |
| CN103728195A (en) * | 2014-01-15 | 2014-04-16 | 中国石油大学(华东) | Multiphase flow scouring corrosion simulation test device for rotary loop |
| CN105202963A (en) * | 2015-09-29 | 2015-12-30 | 茂名重力石化机械制造有限公司 | Non-welding forced sealing structure for heat exchange tube and tube plate |
| CN205001692U (en) * | 2015-09-30 | 2016-01-27 | 甘志宏 | A seal structure for bayonet pipeline clamp locking joint |
Non-Patent Citations (1)
| Title |
|---|
| 肖荣鸽等: "气液两相流管道内腐蚀与防护研究", 《热加工工艺》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107561145A (en) * | 2017-07-13 | 2018-01-09 | 中国电力科学研究院 | Corrosion test chamber |
| CN107561145B (en) * | 2017-07-13 | 2021-03-02 | 中国电力科学研究院 | Corrosion test box |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20170215 |