CN108318343A - A kind of experimental rig and method of test tubing critical external compressive resistance disruption properties - Google Patents

A kind of experimental rig and method of test tubing critical external compressive resistance disruption properties Download PDF

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Publication number
CN108318343A
CN108318343A CN201711332615.4A CN201711332615A CN108318343A CN 108318343 A CN108318343 A CN 108318343A CN 201711332615 A CN201711332615 A CN 201711332615A CN 108318343 A CN108318343 A CN 108318343A
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China
Prior art keywords
sample
valve
pressure
specimen holder
test
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CN201711332615.4A
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Chinese (zh)
Inventor
丁楠
齐国权
李萍
蔡雪华
莫子雄
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China National Petroleum Corp
CNPC Tubular Goods Research Institute
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China National Petroleum Corp
CNPC Tubular Goods Research Institute
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Priority to CN201711332615.4A priority Critical patent/CN108318343A/en
Publication of CN108318343A publication Critical patent/CN108318343A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/10Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
    • G01N3/12Pressure testing

Abstract

The invention discloses a kind of experimental rigs of test tubing critical external compressive resistance disruption properties, including test chamber, pressure bladder, thermostat, pressue device, monitoring device, sample and specimen holder;Test chamber is the hollow tubular of both ends open, and pressure bladder is arranged one week along the inner wall of test chamber, and the intermediate of pressure bladder forms strip space, and sample is arranged in strip space, and specimen holder is arranged at sample both ends;Thermostat connects specimen holder, and pressue device connects pressure bladder, and monitoring device connects specimen holder.The simple, reliable, safe property of experimental rig of the present invention is high, and without complicated sealing device, high-pressure fluid is in constrained state always;Testing ground is clean and tidy, the drainage system without auxiliary.

Description

A kind of experimental rig and method of test tubing critical external compressive resistance disruption properties
Technical field
The invention belongs to pressure test field, more particularly to the experimental rig of a kind of test tubing critical external compressive resistance disruption properties and Method.
Background technology
Non-metallic pipe becomes one of oil field ground collection transmission pipe network corrosion-resistant important solutions, has been widely used in adopting Oil, collects in the engineerings such as defeated, water filling at gas production.Dosage is maximum in Current terrestrial oil field gathering and transportation pipe network has:Glass reinforced plastic pipe, plastics close Golden multiple tube, steel skeleton composite and flexible composite pipe.Although non-metallic pipe has many advantages, such as, due to matrix macromolecule The intensity of material is relatively low and the design of enhancing structure is to carry based on internal pressure, therefore the anti-external pressure performance of non-metallic pipe is aobvious It writes and is less than metallic conduit.In order to which vehicle, tool, overlying soil etc. damage pipeline during avoiding constructing and being on active service, It needs to obtain the performance parameter that tubing critical external compressive resistance is crushed.In addition, the compliant riser generally used in offshore and gas development engineering, And the non-metallic pipe of underground work also needs to carrying exterior fluid pressure.It can be seen that the critical external compressive resistance of test non-metallic pipe Can, all have great importance for each link such as pipe design, transport, laying, operation.
Ground oil field generally uses the cracking stability test that is pressurized, the same GB/ of test method with non-metal pipe at present As defined in T9647 ring stiffness test it is similar, be all pipeline section sample is at the uniform velocity squeezed using parallel-plate, though this kind of laboratory small-scale test The relationship of external load and pipe deforming can be so obtained, but load mode and sample state are very big with actual conditions difference. The full-scale investigation method that tubing external pressure is defined in ASTM D2924 is by the way that tubular product sample is sealed in a test chamber It is interior, by into test chamber water filling be continuously increased the pressure of pipeline external, until conquassation failure occurs for pipeline.This method it is excellent The point actual conditions that have been load mode and sample state simulation, but disadvantage is that:Test chamber needs complicated sealing to set Meter (especially when specimen length is big, needs the test cavity configuration using both ends open formula);Sample testing part is pressurized liquid Body (water) is submerged so that it is very difficult to carry out strain measurement (foil gauge) to sample outer wall;During experiment, if test chamber Poor sealing or cavity fail, and the high pressure water splash in test chamber may cause the accident;After the test, when removing sample Water in test chamber will trickle in test area, cause scene untidy and may cause electrical short-circuit, need the row assisted Drainage facility.
Invention content
The purpose of the present invention is to provide a kind of experimental rigs and method of test tubing critical external compressive resistance disruption properties, to solve The above problem.
To achieve the above object, the present invention uses following technical scheme:
A kind of experimental rig of test tubing critical external compressive resistance disruption properties, including test chamber, pressure bladder, thermostat, pressurization Device, monitoring device, sample and specimen holder;Test chamber is the hollow tubular of both ends open, inner wall of the pressure bladder along test chamber Setting one week, the intermediate of pressure bladder form strip space, and sample is arranged in strip space, and specimen holder is arranged in sample Both ends;Thermostat connects specimen holder, and pressue device connects pressure bladder, and monitoring device connects specimen holder.
Further, thermostat includes temperature controlled water tank, circulating pump, the first valve and the second valve, and the two of temperature controlled water tank End is connected to specimen holder by water pipe respectively, and is connected to form circulation waterway with sample, with both ends specimen holder junction The first valve and the second valve are respectively arranged on water pipe, temperature controlled water tank side is in series with circulating pump.
Further, pressue device includes booster pump, water tank, first pressure sensor and third valve;Water tank passes through water Pipe connects pressure bladder, and booster pump is arranged between water tank and pressure bladder;Is provided on water pipe between booster pump and pressure bladder One pressure sensor, is arranged between the position of first pressure sensor and water tank and is provided with communicating pipe, and the setting of third valve is even On siphunculus.
Further, detection device includes second pressure sensor, flowmeter, calculator and the 4th valve;Specimen holder On be provided with the monitoring water pipe being connected to sample, flowmeter and second pressure sensor are arranged on monitoring water pipe, the 4th valve Door is mounted on flowmeter;First pressure sensor, flowmeter, second pressure sensor and booster pump are all connected to computer.
Further, the both ends of test chamber are both provided with limit clamp, O-ring and stationary fixture, limit clamp and fixation Fixture is annular, and the outer wall of limit clamp and the inner thread of test chamber are connected, the outer wall and position limiting clamp of stationary fixture The inner thread of tool is connected, and O-ring is arranged between limit clamp and stationary fixture;The internal diameter of O-ring and stationary fixture It is matched with the size of sample.
Further, pressure bladder is made of elastic material.
Further, a kind of operating method of the experimental rig based on test tubing critical external compressive resistance disruption properties, the test The experimental rig of tubing critical external compressive resistance disruption properties includes test chamber, pressure bladder, thermostat, pressue device, monitoring device, sample And specimen holder;Test chamber is the hollow tubular of both ends open, and pressure bladder is arranged one week along the inner wall of test chamber, in pressure bladder Between form strip space, sample is arranged in strip space, and specimen holder is arranged at sample both ends;Thermostat connection examination Sample fixture, pressue device connect pressure bladder, and monitoring device connects specimen holder;
Thermostat includes temperature controlled water tank, circulating pump, the first valve and the second valve, and the both ends of temperature controlled water tank pass through respectively Water pipe is connected to specimen holder, and is connected to form circulation waterway with sample, distinguishes on the water pipe of both ends specimen holder junction It is provided with the first valve and the second valve, temperature controlled water tank side is in series with circulating pump;
Pressue device includes booster pump, water tank, first pressure sensor and third valve;Water tank connects pressure by water pipe Capsule, booster pump are arranged between water tank and pressure bladder;First pressure sensing is provided on water pipe between booster pump and pressure bladder Device is arranged between the position of first pressure sensor and water tank and is provided with communicating pipe, and third valve was arranged on communicating pipe;
Detection device includes second pressure sensor, flowmeter, calculator and the 4th valve;Be provided on specimen holder with The monitoring water pipe of sample connection, flowmeter and second pressure sensor are arranged on monitoring water pipe, and the 4th valve is mounted on stream On gauge;First pressure sensor, flowmeter, second pressure sensor and booster pump are all connected to computer;
The both ends of test chamber are both provided with limit clamp, O-ring and stationary fixture, and limit clamp and stationary fixture are ring Shape, the outer wall of limit clamp and the inner thread of test chamber are connected, the outer wall of stationary fixture and the inner wall spiral shell of limit clamp Line is connected, and O-ring is arranged between limit clamp and stationary fixture;The internal diameter and sample of O-ring and stationary fixture it is big Small matching;
The operating method of the experimental rig based on test tubing critical external compressive resistance disruption properties, includes the following steps:
1) sample is installed:Both ends are mounted with that the glass reinforced plastic pipe sample of specimen holder is inserted into test chamber, are subsequently mounted both ends Limit clamp, O-ring, stationary fixture, sample is fixed in test chamber;
2) connecting line:Thermostat is connected to specimen holder, monitoring device is connected to specimen holder;
3) cycle heat preservation:Start temperature controlled water tank and set temperature, water tank is begun to warm up;After water temperature reaches test temperature, The first valve, the second valve and the 4th valve are opened, starts circulating pump and to sample internal water flooding and excludes air;Wait for the 4th valve The 4th valve is closed after having water to emerge, and keeps cycle h that specimen temperature is made to reach test temperature;
4) prepare before pressurization:Circulating pump, the first valve and the second valve are closed, the 4th valve is opened;Close third valve;
5) start to test:Computer is opened, checks booster pump and first pressure sensor and flowmeter and second pressure Whether sensor communicates normally;After confirming that equipment state is normal, start booster pump, the starting stage uses fast water injection, makes pressure Expansion is to come into full contact with and wrap up sample rapidly for capsule, when the pressure curve of pressue device shows apparent boosting trend, i.e. table Show that pressure bladder fills with the free space in test chamber and starts to apply external pressure to sample;Reduce rate of water injection, makes pressure Power is slowly increased;
6) experiment terminates:The pressure of pressure device to be added occurs unexpected when being greatly reduced, and shows that sample outer wall has been broken It splits, while flowmeter and second pressure sensor can also provide a short signal;Booster pump is closed, third valve removal is opened Test pressure in pressure bladder;Remove the pipeline on specimen holder;Stationary fixture, O-ring, positioning fixture are removed, sample is taken out;
7) result is recorded:The failure mode for checking sample, marks the invalid position of sample;It will be on pressue device pressure curve The water yield of conquassation moment cmf record will occur for critical external compressive resistance crushing strength of the maximum pressure value of appearance as tubular product sample Failure as tubing deforms volume, records and preserves experimental data.
Compared with prior art, the present invention has following technique effect:
The present invention be directed to existing experimental technique deficiency, provide it is a kind of test tubing critical external compressive resistance disruption properties method and Experimental rig.Load-up condition in the case of the practical military service of this method simulation, by the pressure bladder inside test chamber to tubular product sample Outer wall apply uniform outer compressive load.By the water for monitoring the pressure in pressure bladder, the pressure oscillation inside sample and discharge Amount measures volume change when limit capacity and the failure of tubular product sample carrying external pressure.
The simple, reliable, safe property of experimental rig of the present invention is high, and without complicated sealing device, high-pressure fluid is located always In constrained state;Testing ground is clean and tidy, the drainage system without auxiliary;Load mode is flexible, if using several independent pressures Power capsule can apply pressure to the different location to sample, such as carry out three-point bending external pressure test;Specimen types and size are flexible, Due to without stringent sealing, as long as theoretically the space between pipeline outer wall and test cavity wall can be placed in pressure Capsule, so that it may to be tested;
The test method design of the present invention is reasonable, the carrying situation during simulating that tubing is practical and being served in, experiment knot Fruit is the crushing strength of tubing, is not necessarily to two times transfer and calculating.
Description of the drawings
Fig. 1 is schematic structural view of the invention;
1 test chamber;2 limit clamps;3 stationary fixtures;4 samples;5 specimen holders;6 first valves;7O type circles;8 pressure bladders; 9 temperature controlled water tanks;10 circulating pumps;11 second valves;12 second pressure sensors;13 flowmeters;14 the 4th valves;15 computers; 16 first pressure sensors;17 booster pumps;18 third valves;19 water tanks.
Specific implementation mode
Below in conjunction with attached drawing, the present invention is further described:
Referring to Fig. 1, a kind of experimental rig of test tubing critical external compressive resistance disruption properties, including test chamber 1, pressure bladder 8, perseverance Warm device, pressue device, monitoring device, sample 4 and specimen holder 5;Test chamber 1 is the hollow tubular of both ends open, pressure bladder 8 Inner wall along test chamber 1 is arranged one week, and the intermediate of pressure bladder 8 forms strip space, and sample 4 is arranged in strip space, Specimen holder 5 is arranged at 4 both ends of sample;Thermostat connects specimen holder 5, and pressue device connects pressure bladder 8, and monitoring device connects Connect specimen holder 5.
Thermostat includes temperature controlled water tank 9, circulating pump 10, the first valve 6 and the second valve 11, the both ends of temperature controlled water tank 9 Specimen holder 5 is connected to by water pipe respectively, and is connected to form circulation waterway with sample 4, with 5 junction of both ends specimen holder The first valve 6 and the second valve 11 are respectively arranged on water pipe, 9 side of temperature controlled water tank is in series with circulating pump 10.
Pressue device includes booster pump 17, water tank 19, first pressure sensor 16 and third valve 18;Water tank 19 passes through water Pipe connects pressure bladder 8, and booster pump 17 is arranged between water tank 19 and pressure bladder 8;On water pipe between booster pump 17 and pressure bladder 8 It is provided with first pressure sensor 16, communicating pipe is provided between the position and water tank 19 of setting first pressure sensor 16, the Three valves 18 were arranged on communicating pipe.
Detection device includes second pressure sensor 12, flowmeter 13, calculator 15 and the 4th valve 14;Specimen holder 5 On be provided with the monitoring water pipe being connected to sample, flowmeter 13 and second pressure sensor 12 are arranged on monitoring water pipe, the Four valves 14 are mounted on flowmeter 13;First pressure sensor 16, flowmeter 13, second pressure sensor 12 and booster pump 17 It is all connected to computer 15.
The both ends of test chamber 1 are both provided with limit clamp 2, O-ring 7 and stationary fixture 3, limit clamp 2 and stationary fixture 3 It is annular, the outer wall of limit clamp 2 is connected with the inner thread of test chamber 1, the outer wall and limit clamp of stationary fixture 3 2 inner thread is connected, and O-ring 7 is arranged between limit clamp 2 and stationary fixture 3;O-ring 7 and stationary fixture 3 Internal diameter is matched with the size of sample 4.
Pressure bladder 8 is made of elastic material.
The operating method of the present invention, includes the following steps:
1) sample is installed:Both ends are mounted with that the glass reinforced plastic pipe sample of specimen holder 5 is inserted into test chamber 1, are subsequently mounted two Limit clamp 2, O-ring 7, the stationary fixture 3 at end, sample 4 is fixed in test chamber;
2) connecting line:Thermostat is connected to specimen holder 5, monitoring device is connected to specimen holder 5;
3) cycle heat preservation:Start temperature controlled water tank 9 and set temperature, water tank is begun to warm up;After water temperature reaches test temperature, The first valve 6, the second valve 11 and the 4th valve 14 are opened, starts circulating pump 10 and to sample internal water flooding and excludes air;It waits for 4th valve 14 closes the 4th valve 14 after having water to emerge, and cycle is kept so that specimen temperature is reached test temperature for 24 hours;
4) prepare before pressurization:Circulating pump 10, the first valve 6 and the second valve 11 are closed, the 4th valve 14 is opened;Close the Three valves 18;
5) start to test:Computer 15 is opened, checks booster pump 17 and 13 He of first pressure sensor 16 and flowmeter Whether second pressure sensor 12 communicates normally;After confirming that equipment state is normal, start booster pump 17, the starting stage is using quick Water filling, making pressure bladder 8, to come into full contact with and wrap up sample, the pressure curve of pressue device shows apparent boosting for expansion rapidly When trend, that is, indicate that pressure bladder 8 fills with the free space in test chamber and starts to apply external pressure to sample;Reduce note Water speed rate, makes pressure be slowly increased;
6) experiment terminates:The pressure of pressure device to be added occurs unexpected when being greatly reduced, and shows that 4 outer wall of sample has been broken It splits, while flowmeter 13 and second pressure sensor 12 can also provide a short signal;Booster pump 17 is closed, third valve is opened Test pressure in 18 removal pressure bladders 8 of door;Remove the pipeline on specimen holder 5;Remove stationary fixture 3, O-ring 7, locating clip Tool 2 takes out sample 4;
7) result is recorded:It checks the failure mode of sample 4, marks the invalid position of sample 4;By pressue device pressure curve The water outlet of conquassation moment cmf record will occur for critical external compressive resistance crushing strength of the maximum pressure value of upper appearance as tubular product sample It measures and deforms volume as the failure of tubing, record and preserve experimental data.

Claims (7)

1. a kind of experimental rig of test tubing critical external compressive resistance disruption properties, which is characterized in that including test chamber (1), pressure bladder (8), thermostat, pressue device, monitoring device, sample (4) and specimen holder (5);Test chamber (1) is the hollow of both ends open Tubulose, pressure bladder (8) are arranged one week along the inner wall of test chamber (1), and the intermediate of pressure bladder (8) forms strip space, sample (4) It is arranged in strip space, specimen holder (5) is arranged at sample (4) both ends;Thermostat connects specimen holder (5), pressurization Device connects pressure bladder (8), and monitoring device connects specimen holder (5).
2. a kind of experimental rig of test tubing critical external compressive resistance disruption properties according to claim 1, which is characterized in that constant temperature Device includes temperature controlled water tank (9), circulating pump (10), the first valve (6) and the second valve (11), the both ends point of temperature controlled water tank (9) Specimen holder (5) is not connected to by water pipe, and is connected to form circulation waterway with sample (4), is connect with both ends specimen holder (5) The first valve (6) and the second valve (11) are respectively arranged on the water pipe at place, temperature controlled water tank (9) side is in series with circulating pump (10)。
3. a kind of experimental rig of test tubing critical external compressive resistance disruption properties according to claim 1, which is characterized in that pressurization Device includes booster pump (17), water tank (19), first pressure sensor (16) and third valve (18);Water tank (19) passes through water pipe Pressure bladder (8) is connected, booster pump (17) is arranged between water tank (19) and pressure bladder (8);Booster pump (17) and pressure bladder (8) it Between water pipe on be provided with first pressure sensor (16), between the position and water tank (19) of setting first pressure sensor (16) It is provided with communicating pipe, third valve (18) was arranged on communicating pipe.
4. a kind of experimental rig of test tubing critical external compressive resistance disruption properties according to claim 3, which is characterized in that detection Device includes second pressure sensor (12), flowmeter (13), calculator (15) and the 4th valve (14);On specimen holder (5) It is provided with the monitoring water pipe being connected to sample, flowmeter (13) and second pressure sensor (12) are arranged on monitoring water pipe, 4th valve (14) is mounted on flowmeter (13);First pressure sensor (16), flowmeter (13), second pressure sensor (12) and booster pump (17) is all connected to computer (15).
5. a kind of experimental rig of test tubing critical external compressive resistance disruption properties according to claim 1, which is characterized in that test The both ends of chamber (1) are both provided with limit clamp (2), O-ring (7) and stationary fixture (3), limit clamp (2) and stationary fixture (3) It is annular, the outer wall of limit clamp (2) is connected with the inner thread of test chamber (1), the outer wall and limit of stationary fixture (3) The inner thread of position fixture (2) is connected, and O-ring (7) is arranged between limit clamp (2) and stationary fixture (3);O-ring (7) it is matched with the size of sample (4) with the internal diameter of stationary fixture (3).
6. a kind of experimental rig of test tubing critical external compressive resistance disruption properties according to claim 1, which is characterized in that pressure Capsule (8) is made of elastic material.
7. a kind of operating method of the experimental rig based on test tubing critical external compressive resistance disruption properties, which is characterized in that the test The experimental rig of tubing critical external compressive resistance disruption properties includes test chamber (1), pressure bladder (8), thermostat, pressue device, monitoring dress It sets, sample (4) and specimen holder (5);Test chamber (1) is the hollow tubular of both ends open, and pressure bladder (8) is along test chamber (1) Inner wall is arranged one week, and the intermediate of pressure bladder (8) forms strip space, and sample (4) is arranged in strip space, specimen holder (5) it is arranged at sample (4) both ends;Thermostat connects specimen holder (5), and pressue device connects pressure bladder (8), and monitoring device connects Connect specimen holder (5);
Thermostat includes temperature controlled water tank (9), circulating pump (10), the first valve (6) and the second valve (11), temperature controlled water tank (9) Both ends specimen holder (5) is connected to by water pipe respectively, and be connected to form circulation waterway with sample (4), with both ends specimen holder It is respectively arranged with the first valve (6) and the second valve (11) on the water pipe for having (5) junction, temperature controlled water tank (9) side is in series with Circulating pump (10);
Pressue device includes booster pump (17), water tank (19), first pressure sensor (16) and third valve (18);Water tank (19) Pressure bladder (8) is connected by water pipe, booster pump (17) is arranged between water tank (19) and pressure bladder (8);Booster pump (17) and pressure First pressure sensor (16), the position of setting first pressure sensor (16) and water are provided on water pipe between power capsule (8) Communicating pipe is provided between case (19), third valve (18) was arranged on communicating pipe;
Detection device includes second pressure sensor (12), flowmeter (13), calculator (15) and the 4th valve (14);Specimen holder It is provided with the monitoring water pipe being connected to sample on tool (5), flowmeter (13) and second pressure sensor (12) are arranged at monitoring On water pipe, the 4th valve (14) is mounted on flowmeter (13);First pressure sensor (16), flowmeter (13), second pressure Sensor (12) and booster pump (17) are all connected to computer (15);
The both ends of test chamber (1) are both provided with limit clamp (2), O-ring (7) and stationary fixture (3), limit clamp (2) and solid Clamp tool (3) is annular, and the outer wall of limit clamp (2) is connected with the inner thread of test chamber (1), stationary fixture (3) The inner thread of outer wall and limit clamp (2) be connected, O-ring (7) is arranged in limit clamp (2) and stationary fixture (3) Between;The internal diameter of O-ring (7) and stationary fixture (3) is matched with the size of sample (4);
The operating method of the experimental rig based on test tubing critical external compressive resistance disruption properties, includes the following steps:
1) sample is installed:Both ends are mounted with that the glass reinforced plastic pipe sample of specimen holder (5) is inserted into test chamber (1), are subsequently mounted two Limit clamp (2), O-ring (7), the stationary fixture (3) at end, sample (4) is fixed in test chamber;
2) connecting line:Thermostat is connected to specimen holder (5), monitoring device is connected to specimen holder (5);
3) cycle heat preservation:Start temperature controlled water tank (9) and set temperature, water tank are begun to warm up;After water temperature reaches test temperature, beat The first valve (6), the second valve (11) and the 4th valve (14) are opened, start circulating pump (10) to sample internal water flooding and excludes sky Gas;The 4th valve (14) is closed after the 4th valve (14) has water to emerge, and keeps cycle (24) h that specimen temperature is made to reach experiment temperature Degree;
4) prepare before pressurization:Circulating pump (10), the first valve (6) and the second valve (11) are closed, the 4th valve (14) is opened;It closes Close third valve (18);
5) start to test:Computer (15) is opened, checks booster pump (17) and first pressure sensor (16) and flowmeter (13) whether communicated normally with second pressure sensor (12);After confirming that equipment state is normal, start booster pump (17), initial rank Duan Caiyong fast water injections, making pressure bladder (8), to come into full contact with and wrap up sample, the pressure curve of pressue device is shown for expansion rapidly When going out apparent boosting trend, that is, indicate that pressure bladder (8) fills with the free space in test chamber and starts to apply to sample External pressure;Reduce rate of water injection, pressure is made to be slowly increased;
6) experiment terminates:The pressure of pressure device to be added occurs unexpected when being greatly reduced, and shows that sample (4) outer wall has been broken It splits, while flowmeter (13) and second pressure sensor (12) can also provide a short signal;Booster pump (17) is closed, is opened Test pressure in third valve (18) removal pressure bladder (8);Remove the pipeline on specimen holder (5);Remove stationary fixture (3), O-ring (7), positioning fixture (2) take out sample (4);
7) result is recorded:Check the failure mode of sample (4), the invalid position of label sample (4);By pressue device pressure curve The water outlet of conquassation moment cmf record will occur for critical external compressive resistance crushing strength of the maximum pressure value of upper appearance as tubular product sample It measures and deforms volume as the failure of tubing, record and preserve experimental data.
CN201711332615.4A 2017-12-13 2017-12-13 A kind of experimental rig and method of test tubing critical external compressive resistance disruption properties Pending CN108318343A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108982230A (en) * 2018-08-13 2018-12-11 英立(江苏)机电有限公司 A kind of PE pipe external pressure test device
CN109374414A (en) * 2018-09-05 2019-02-22 华创天元实业发展有限责任公司 Pipe fitting critical external compressive resistance performance test experimental facilities and its detection method
CN109580371A (en) * 2018-12-17 2019-04-05 江西汇丰管业有限公司 The detection device and detection method of bellows anti-pressure ability
CN109596435A (en) * 2018-12-28 2019-04-09 洛阳双瑞金属复合材料有限公司 A kind of test method for testing filter core critical external compressive resistance disruption properties
CN111473971A (en) * 2020-06-19 2020-07-31 胜利油田新大管业科技发展有限责任公司 External pressure test device for pipeline

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU781674A1 (en) * 1978-12-06 1980-11-23 Казанский Ордена Трудового Красного Знамени Государственный Университет Им. В.И.Ульянова (Ленина) Method of optimization of reinforced cylindrical shell paramerets
JPS61212743A (en) * 1985-03-18 1986-09-20 Sumitomo Metal Ind Ltd Steel pipe test
US5339693A (en) * 1992-12-28 1994-08-23 Sonoco Products Company Apparatus and method for testing tubular products
JP2001074624A (en) * 1999-09-01 2001-03-23 Nippon Steel Corp External pressure load-testing device of steel pipe
CN101443645A (en) * 2006-05-16 2009-05-27 可恩索联合有限公司 Method and apparatus for checking tubular articles
CN101520388A (en) * 2009-04-02 2009-09-02 哈尔滨工业大学 Device for testing bulge performance of tubular products
CN205958381U (en) * 2016-08-25 2017-02-15 宝鸡石油钢管有限责任公司 Tubular product high temperature external pressure bending test device
CN206683965U (en) * 2017-05-05 2017-11-28 天津市海王星海上工程技术股份有限公司 A kind of non-adherent flexible pipe crush resistance measurement apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU781674A1 (en) * 1978-12-06 1980-11-23 Казанский Ордена Трудового Красного Знамени Государственный Университет Им. В.И.Ульянова (Ленина) Method of optimization of reinforced cylindrical shell paramerets
JPS61212743A (en) * 1985-03-18 1986-09-20 Sumitomo Metal Ind Ltd Steel pipe test
US5339693A (en) * 1992-12-28 1994-08-23 Sonoco Products Company Apparatus and method for testing tubular products
JP2001074624A (en) * 1999-09-01 2001-03-23 Nippon Steel Corp External pressure load-testing device of steel pipe
CN101443645A (en) * 2006-05-16 2009-05-27 可恩索联合有限公司 Method and apparatus for checking tubular articles
CN101520388A (en) * 2009-04-02 2009-09-02 哈尔滨工业大学 Device for testing bulge performance of tubular products
CN205958381U (en) * 2016-08-25 2017-02-15 宝鸡石油钢管有限责任公司 Tubular product high temperature external pressure bending test device
CN206683965U (en) * 2017-05-05 2017-11-28 天津市海王星海上工程技术股份有限公司 A kind of non-adherent flexible pipe crush resistance measurement apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
US-ASTM: "Standard Test Method for External Pressure Resistance of "Fiberglass"(Glass-Fiber-Reinforced Thermosetting-Resin) Pipe", 《AN AMERICAN NATIONAL STANDARD》 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108982230A (en) * 2018-08-13 2018-12-11 英立(江苏)机电有限公司 A kind of PE pipe external pressure test device
CN109374414A (en) * 2018-09-05 2019-02-22 华创天元实业发展有限责任公司 Pipe fitting critical external compressive resistance performance test experimental facilities and its detection method
CN109580371A (en) * 2018-12-17 2019-04-05 江西汇丰管业有限公司 The detection device and detection method of bellows anti-pressure ability
CN109596435A (en) * 2018-12-28 2019-04-09 洛阳双瑞金属复合材料有限公司 A kind of test method for testing filter core critical external compressive resistance disruption properties
CN111473971A (en) * 2020-06-19 2020-07-31 胜利油田新大管业科技发展有限责任公司 External pressure test device for pipeline

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