WO2022267075A1 - Pipe pressure resistance testing device and testing method thereof - Google Patents

Pipe pressure resistance testing device and testing method thereof Download PDF

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Publication number
WO2022267075A1
WO2022267075A1 PCT/CN2021/103051 CN2021103051W WO2022267075A1 WO 2022267075 A1 WO2022267075 A1 WO 2022267075A1 CN 2021103051 W CN2021103051 W CN 2021103051W WO 2022267075 A1 WO2022267075 A1 WO 2022267075A1
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WIPO (PCT)
Prior art keywords
pipe
sleeve
deformation
tested
plug
Prior art date
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Ceased
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PCT/CN2021/103051
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French (fr)
Chinese (zh)
Inventor
陈江慧
褚展鹏
霍福磊
金崇阳
刘跃明
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Linhai Weixing New Building Materials Co Ltd
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Linhai Weixing New Building Materials Co Ltd
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Publication of WO2022267075A1 publication Critical patent/WO2022267075A1/en
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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
    • 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
    • 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
    • G01N3/06—Special adaptations of indicating or recording means
    • G01N3/064—Special adaptations of indicating or recording means with hydraulic indicating or recording means
    • 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
    • G01N3/06—Special adaptations of indicating or recording means
    • G01N3/068—Special adaptations of indicating or recording means with optical indicating or recording 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
    • G01N2203/0001—Type of application of the stress
    • G01N2203/0003—Steady
    • 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
    • G01N2203/0058—Kind of property studied
    • G01N2203/0076—Hardness, compressibility or resistance to crushing
    • G01N2203/0087—Resistance to crushing
    • 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
    • G01N2203/022—Environment of the test
    • G01N2203/023—Pressure
    • 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
    • G01N2203/026—Specifications of the specimen
    • G01N2203/0262—Shape of the specimen
    • G01N2203/0274—Tubular or ring-shaped specimens

Definitions

  • the utility model relates to the technical field of plastic pipeline detection equipment, in particular to a pipe material pressure test device and a test method thereof.
  • steel pipes were generally used to transport media in ships and oil fields.
  • the main disadvantage is that they are very easy to corrode. Since the pipes are submerged in seawater all the year round, the steel pipes are easy to rust and damage, and the steel pipes are relatively heavy, which reduces the cargo capacity of the ship. .
  • plastic pipes were used instead of steel pipes in various fields.
  • PE pipes are widely used, have better corrosion resistance and light weight, but the ring stiffness of PE pipes is far inferior to steel pipes. Therefore, before using them in actual working conditions, they need to be treated.
  • the PE pipe is subjected to an external pressure test to determine the deformation of the pipe under external pressure. At present, the pressure test device in the existing technology has a very cumbersome installation process and a large workload.
  • the present invention provides a pipe material withstand voltage testing device and a testing method thereof with reasonable structural design.
  • a pipe pressure test device including equipment base frame, cylinder body, pipe material to be tested and online measuring device for pipe deformation
  • the cylinder body is set above the equipment base frame, and the internal bottom surface of the cylinder body is set at a position close to its sealing end Roller;
  • the open end of the cylinder body is fixedly provided with a flange inner support sleeve, one end of the pipe to be tested is arranged on the roller, the other end is arranged on the flange inner support sleeve, and one end of the pipe to be tested is provided with a plug,
  • the other end is provided with a locking sleeve;
  • the locking sleeve communicates with the pipe deformation online metering device through the first conduit, which is used for pipe material resistance to external pressure testing and measurement;
  • the top of the cylinder is provided with an exhaust valve, and the The exhaust valve and the pipe deformation online metering device are connected through the second conduit, which is used for the measurement of the pipe's internal pressure resistance test;
  • the pressure line of the hydraulic testing machine, the first conduit is provided with an intake valve, which is used to connect the vacuum pipeline when the internal pressure resistance test of the pipe is used, and the connection between the first conduit and the second conduit is provided with a three-way valve. Switch between the test of pipe material resistance to external pressure and internal pressure.
  • the pipe material pressure test device also includes a pipe deformation online observation device
  • the pipe deformation online observation device includes a camera and a display, the camera is set at the top position inside the cylinder, and the display is set On the equipment chassis, and the signal connection between the display and the camera.
  • the pipe deformation online metering device includes a U-shaped tube, the U-shaped tube is fixedly arranged on the equipment chassis, and a sealing plug with a hole is provided on one port of the U-shaped tube , and the surface of the U-shaped tube is provided with a scale, and the inside is filled with liquid.
  • a clamping piece is provided between the locking sleeve and the pipe to be tested.
  • the clamping piece is composed of two petals. Tooth type, and the end of the continuous tooth type is provided with an O-ring groove, and an O-ring is arranged in the O-ring groove.
  • the pipe to be tested is provided with a sleeve at one end of the plug, and a clamping piece is provided between the sleeve and the pipe to be tested.
  • the inner surface of the sleeve is set as a tapered surface, and its taper is the same as The outer surface of the compressed tablet is consistent.
  • the plug includes a plug main body and a limit installation block arranged at the end of the plug main body, a sealing ring installation groove 1 is provided on the plug main body, and a hexagonal protrusion is provided on the limit installation block.
  • the platform is convenient for the disassembly and assembly of the plug, and the limit installation block is provided with an external threaded connection for threaded connection with the sleeve.
  • the flange inner support sleeve includes a flange, a pipe installation sleeve arranged on one side of the flange, and a locking sleeve installation sleeve arranged on the other side of the flange, and the end of the locking sleeve installation sleeve There are limited steps.
  • the locking sleeve includes a locking head and a sealing head arranged on the locking head, the locking head is provided with a through hole, the sealing plug is provided with a sealing ring installation groove 2, and the locking Operating handles are provided on opposite sides of the tightening head, and external threads are provided on the locking head for threaded connection with the inner support sleeve of the flange.
  • cylinder body and the inner support sleeve of the flange are connected by bolts, and a sealing gasket is arranged between the cylinder body and the inner support sleeve of the flange for sealing.
  • a test method for a pipe pressure test device comprising the steps of:
  • External pressure resistance test adjust the three-way valve to make the U-shaped pipe and the locking sleeve conduct, connect the water inlet valve to the pressure line of the hydrostatic testing machine, and reflect the change of the gas volume inside the pipe to be tested to the U-shaped pipe.
  • the medium liquid level is poor.
  • the deformation of the pipe can be observed through the liquid level difference of the U-shaped tube, and the deformation of the pipe can be seen intuitively through the display;
  • Internal pressure resistance test adjust the three-way valve to make the U-shaped tube and the exhaust valve conduct, connect the intake valve to the vacuum pipeline, and reflect the liquid level difference in the U-shaped tube through the change of the gas volume inside the cylinder.
  • the deformation of the pipe can be observed through the liquid level difference of the U-shaped pipe, and the deformation of the pipe can be seen intuitively through the display.
  • the device can not only meet the external pressure resistance test of pipe materials, but also can be used for negative pressure resistance test.
  • This device can not only be used for plastic solid wall pipes, It can also be used for the detection of composite pipes; it is easy to operate and improves the efficiency of the test.
  • Fig. 1 is the three-dimensional structure schematic diagram of the present invention
  • Fig. 2 is a schematic diagram of the internal structure of the present invention.
  • Fig. 3 is a structural schematic diagram of a locking sleeve of the present invention.
  • Fig. 4 is a schematic structural view of the flange inner support sleeve of the present invention.
  • Fig. 5 is the schematic diagram of plug structure of the present invention.
  • Equipment chassis 2. U-shaped pipe; 3. First conduit; 4. Locking sleeve; 401. Locking head; 402. Sealing head; 403. Operating handle; 404. Through hole; 405. Sealing ring installation groove 2; 5. Flange inner support sleeve; 501. Flange plate; 502. Pipe installation sleeve; 503. Locking sleeve installation sleeve; 504.
  • a pipe pressure test device includes an equipment chassis 1, a U-shaped pipe 2, a first conduit 3, a locking sleeve 4, a locking head 401, a sealing head 402, an operating handle 403, Through hole 404, sealing ring installation groove 2 405, flange inner support sleeve 5, flange plate 501, pipe installation sleeve 502, locking sleeve installation sleeve 503, limit step 504, sealing gasket 6, clamping plate 7, cylinder Body 8, camera 9, water inlet valve 10, inlet valve 11, sleeve 12, plug 13, plug main body 1301, limit mounting block 1302, hexagonal boss 1303, sealing ring installation groove 1304, roller 14, The pipe to be tested 15 , the exhaust valve 16 , the second conduit 17 and the three-way valve 18 .
  • Pipe pressure test device including the equipment chassis 1, the cylinder body 8 is set above the equipment chassis 1, the inner bottom surface of the cylinder body 8 is a horizontal plane, one end is closed, the other end is open, and the inner bottom surface of the cylinder body 8 is set near its sealing end Roller 14 (roller 14 is supported by the roller frame); the open end of cylinder body 8 is fixedly provided with flange inner support sleeve 5, and one end of the pipe material 15 to be tested is arranged on the roller 14, and the other end is arranged on the flange inner support sleeve 5, and the One end of the pipe to be tested 15 is provided with a plug 13 and the other end is provided with a locking sleeve 4 .
  • the locking sleeve 4 is connected with the pipe deformation online metering device through the first conduit 3, which is used for pipe material resistance to external pressure testing and measurement; the top of the cylinder body 8 is provided with an exhaust valve 16, and the exhaust valve 16 is connected with the pipe deformation online metering device
  • the second conduit 17 is used to communicate with each other through the second conduit 17, which is used for the measurement of the internal pressure resistance test of the pipe; the top of the cylinder body 8 is provided with a water inlet valve 10, which is used to connect the pressure line of the hydrostatic testing machine for the external pressure test of the pipe.
  • An air inlet valve 11 is provided on the first conduit 3, which is used to connect the vacuum pipeline during the internal pressure resistance test of the pipe material. Test switching between internal pressures.
  • the pipe pressure test device also includes a pipe deformation on-line observation device.
  • the pipe deformation on-line observation device includes a camera 9 and a display 19.
  • the camera 9 is arranged at the top position inside the cylinder body 8, and the display 19 is arranged on the equipment chassis 1. , and the signal connection between the display 19 and the camera 9 .
  • the on-line metering device for pipe deformation includes a U-shaped tube 2, which is fixedly arranged on the equipment chassis 1, a port with a hole in the U-shaped tube 2 is provided with a sealing plug, and the second conduit 17 is inserted into the hole with a hole.
  • a sealing plug On the sealing plug, and the surface of the U-shaped tube 2 is provided with a scale, and the inside is filled with a liquid, generally a colored liquid, which is convenient for observation.
  • a clamping piece 7 is provided between the locking sleeve 4 and the pipe material 15 to be tested.
  • the clamping piece 7 is composed of two petals. Tooth type, and the end of the continuous tooth type is provided with an O-ring groove, and an O-ring is arranged in the O-ring groove.
  • the pipe material 15 to be tested is provided with a sleeve 12 at one end of the plug 13, and a crimping piece 7 is also provided between the sleeve 12 and the pipe material 15 to be tested, and the inner surface of the sleeve 12 is set as a conical surface, and Its taper is consistent with the outer surface of the pressing piece 7 .
  • the plug 13 includes a plug main body 1301 and a limit installation block 1302 arranged at the end of the plug main body 1301.
  • the plug main body 1301 is provided with a sealing ring installation groove 1304, and the sealing ring installation groove 1304 is equipped with a sealing ring.
  • the limit mounting block 1302 is provided with a hexagonal boss 1303, which is convenient for plug disassembly and assembly.
  • the limit mounting block 1302 is provided with an external thread connection for threaded connection with the sleeve 12. During the tightening process of the plug, the card The pressing piece is squeezed to the inside, so as to clamp the end of the pipe to be tested to achieve the sealing effect.
  • the flange inner support sleeve 5 includes a flange 501, a pipe installation sleeve 502 arranged on one side of the flange 501, and a locking sleeve installation sleeve 503 arranged on the other side of the flange 501.
  • a limit step 504 is provided at the end of the sleeve 503 .
  • the locking sleeve 4 includes a locking head 401 and a sealing head 402 arranged on the locking head 401, the locking head 401 is provided with a through hole 404, and the through hole 404 is used to communicate with the first conduit 3, sealing
  • the head 402 is provided with a seal ring installation groove 2 405, a seal ring is installed in the seal ring installation groove 2 405, an operating handle 403 is provided on the opposite side of the locking head 401, and an external thread is provided on the locking head 401 for It is threadedly connected with the flange inner support sleeve 5, and when the locking sleeve is locked, the clamping piece is squeezed into the flange inner support sleeve to clamp the pipe.
  • the cylinder body 8 and the flange inner support sleeve 5 are connected by bolts, and a sealing gasket 6 is arranged between the cylinder body 8 and the flange inner support sleeve 5 for sealing.
  • test method of the pipe pressure test device the specific steps are as follows:
  • External pressure resistance test adjust the three-way valve to make the U-shaped pipe and the locking sleeve conduct, connect the water inlet valve to the pressure line of the hydrostatic testing machine (the inlet valve is in the closed state), and pass the gas inside the pipe to be tested.
  • the volume change is reflected in the liquid level difference in the U-shaped tube.
  • the deformation of the pipe can be observed through the liquid level difference of the U-shaped tube, and the deformation of the pipe can be seen intuitively through the display;

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
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Abstract

A pipe pressure resistance testing device and a testing method thereof. The pipe pressure resistance testing device comprises a device underframe (1), a cylinder body (8), a pipe (15) to be tested and a pipe deformation online measurement device; the cylinder body (8) is provided above the device underframe (1), and a roller (14) is provided on the position at the inner bottom surface of the cylinder body (8) close to a sealing end thereof; a flange inner supporting sleeve (5) is fixedly provided at an opening end of the cylinder body (8), said pipe (15) has one end provided on the roller (14) and the other end provided on the flange inner supporting sleeve (5), and said pipe (15) has one end provided with a plug (13) and the other end provided with a locking sleeve (4); the locking sleeve (4) is communicated with the pipe deformation online measurement device by means of a first guide pipe (3), and is used for external pressure resistance test and measurement of a pipe; both ends of said pipe (15) are sealed and blocked, and a U-shaped pipe (2) is provided, so that a flattening condition of said pipe (15) is accurately reflected by observing the increase and decrease of the liquid level in the U-shaped pipe (2); meanwhile, a camera (9) and a display (19) are further provided, so that the deformation of the pipe can be observed in real time. The device not only can determine the deformation of said pipe (15), but also can quantitatively test the amount of deformation of the pipe.

Description

一种管材耐压测试装置及其测试方法A pipe pressure test device and its test method 技术领域technical field

本实用新型涉及塑料管道检测设备技术领域，具体涉及一种管材耐压测试装置及其测试方法。The utility model relates to the technical field of plastic pipeline detection equipment, in particular to a pipe material pressure test device and a test method thereof.

背景技术Background technique

以往在船舶以及油田领域中一般都是用钢管进行输送介质，其主要缺点就是非常容易腐蚀，由于管道常年浸没在海水中，钢管容易生锈损坏，且钢管比较重，减少了船舶的载货量。后来开始用塑料管代替钢管应用于各个领域，其中PE管应用较为广泛,耐腐蚀性较好，重量轻，但是PE管的环刚度远远不如钢管，因此在实际工况使用前，需要对待使用PE管进行耐外压测试来判断管道在承受此外压下的变形情况。目前现有技术中耐压测试装置，安装过程非常繁琐，工作量较大，需要花费大量的时间才能完成管材耐外压测试的准备工作，效率非常低；而且仅能测试塑料实壁管；同时也只能人为肉眼观察被测试管材内壁的变形情况，测试结果可靠性较低。In the past, steel pipes were generally used to transport media in ships and oil fields. The main disadvantage is that they are very easy to corrode. Since the pipes are submerged in seawater all the year round, the steel pipes are easy to rust and damage, and the steel pipes are relatively heavy, which reduces the cargo capacity of the ship. . Later, plastic pipes were used instead of steel pipes in various fields. Among them, PE pipes are widely used, have better corrosion resistance and light weight, but the ring stiffness of PE pipes is far inferior to steel pipes. Therefore, before using them in actual working conditions, they need to be treated. The PE pipe is subjected to an external pressure test to determine the deformation of the pipe under external pressure. At present, the pressure test device in the existing technology has a very cumbersome installation process and a large workload. It takes a lot of time to complete the preparation work for the external pressure test of the pipe, and the efficiency is very low; and it can only test the plastic solid wall pipe; at the same time It is also only possible to observe the deformation of the inner wall of the tested pipe with the naked eye, and the reliability of the test results is low.

发明内容Contents of the invention

针对现有技术中存在的问题，本发明提供了结构设计合理的一种管材耐压测试装置及其测试方法。Aiming at the problems existing in the prior art, the present invention provides a pipe material withstand voltage testing device and a testing method thereof with reasonable structural design.

本发明的技术方案如下：Technical scheme of the present invention is as follows:

一种管材耐压测试装置，包括设备底架、缸体、待测试管材及管材变形在线计量装置，所述缸体设置在设备底架上方，所述缸体内部底面在靠近其封口端位置设置滚轮；所述缸体开口端固定设置法兰内撑套，所述待测试管材一端设置在滚轮上，另一端设置在法兰内撑套上，且所述待测试管材一端设有堵头，另一端设有锁紧套；所述锁紧套与管材变形在线计量装置之间通过第一导管相连通，用于管材耐外压测试计量；所述缸体顶部设有排气阀门，所述排气阀门与管材变形在线计量装置之间通过第二导管与相连通，用于管材耐内压测试计量；所述缸体顶部设有进水阀门，用于管材耐外压测试时，连接静液压试验机的打压线，所述第一导管上设有进气阀门，用于管材耐内压测试时，连接抽真空管线，所述第一导管与第二导管连接处设有三通阀门，用于管材耐外压与耐内压之间的测试切换。A pipe pressure test device, including equipment base frame, cylinder body, pipe material to be tested and online measuring device for pipe deformation, the cylinder body is set above the equipment base frame, and the internal bottom surface of the cylinder body is set at a position close to its sealing end Roller; the open end of the cylinder body is fixedly provided with a flange inner support sleeve, one end of the pipe to be tested is arranged on the roller, the other end is arranged on the flange inner support sleeve, and one end of the pipe to be tested is provided with a plug, The other end is provided with a locking sleeve; the locking sleeve communicates with the pipe deformation online metering device through the first conduit, which is used for pipe material resistance to external pressure testing and measurement; the top of the cylinder is provided with an exhaust valve, and the The exhaust valve and the pipe deformation online metering device are connected through the second conduit, which is used for the measurement of the pipe's internal pressure resistance test; the top of the cylinder is equipped with a water inlet valve, which is used for the pipe's external pressure resistance test. The pressure line of the hydraulic testing machine, the first conduit is provided with an intake valve, which is used to connect the vacuum pipeline when the internal pressure resistance test of the pipe is used, and the connection between the first conduit and the second conduit is provided with a three-way valve. Switch between the test of pipe material resistance to external pressure and internal pressure.

进一步的，所述的一种管材耐压测试装置，还包括管材形变在线观察装置，所述管材形变在线观察装置包括摄像头及显示器，所述摄像头设置在缸体内侧顶部位置处，所述显示器设置在设备底架上，且显示器与摄像头之间信号连接。Further, the pipe material pressure test device also includes a pipe deformation online observation device, the pipe deformation online observation device includes a camera and a display, the camera is set at the top position inside the cylinder, and the display is set On the equipment chassis, and the signal connection between the display and the camera.

进一步的，所述管材变形在线计量装置，所述管材变形在线计量装置包括U型管，所述U型管固定设置在设备底架上，所述U型管一端口上设有带孔密封塞，且所述U型管表面设有刻度，内部装有液体。Further, the pipe deformation online metering device, the pipe deformation online metering device includes a U-shaped tube, the U-shaped tube is fixedly arranged on the equipment chassis, and a sealing plug with a hole is provided on one port of the U-shaped tube , and the surface of the U-shaped tube is provided with a scale, and the inside is filled with liquid.

进一步的，所述锁紧套与待测试管材之间设有卡压片，所述卡压片由两瓣组成，所述卡压片的外表面采用锥面，卡压片内表面设有连续齿型，且连续齿型末端设有O型圈槽，所述O型圈槽内设有O型圈。Further, a clamping piece is provided between the locking sleeve and the pipe to be tested. The clamping piece is composed of two petals. Tooth type, and the end of the continuous tooth type is provided with an O-ring groove, and an O-ring is arranged in the O-ring groove.

进一步的，所述待测试管材在位于堵头一端设有套筒，所述套筒与待测试管材之间设有卡压片，所述套筒内表面设置成锥面，且其锥度与卡压片外表面一致。Further, the pipe to be tested is provided with a sleeve at one end of the plug, and a clamping piece is provided between the sleeve and the pipe to be tested. The inner surface of the sleeve is set as a tapered surface, and its taper is the same as The outer surface of the compressed tablet is consistent.

进一步的，所述堵头包括堵头主体及设置在堵头主体端部的限位安装块，所述堵头主体上设有密封圈安装槽一，所述限位安装块上设有六角凸台，便于堵头拆装，所述限位安装块上设有外螺纹连接，用于与套筒螺纹连接。Further, the plug includes a plug main body and a limit installation block arranged at the end of the plug main body, a sealing ring installation groove 1 is provided on the plug main body, and a hexagonal protrusion is provided on the limit installation block. The platform is convenient for the disassembly and assembly of the plug, and the limit installation block is provided with an external threaded connection for threaded connection with the sleeve.

进一步的，所述法兰内撑套包括法兰盘、设置在法兰盘一侧的管材安装套及设置在法兰盘另一侧的锁紧套安装套，所述锁紧套安装套末端设有限位台阶。Further, the flange inner support sleeve includes a flange, a pipe installation sleeve arranged on one side of the flange, and a locking sleeve installation sleeve arranged on the other side of the flange, and the end of the locking sleeve installation sleeve There are limited steps.

进一步的，所述锁紧套包括锁紧头及设置在锁紧头上的密封头，所述锁紧头上设有通孔，所述密封塞上设有密封圈安装槽二，所述锁紧头的两侧相对位置设有操作手柄，所述锁紧头上设有外螺纹，用于与法兰内撑套螺纹连接。Further, the locking sleeve includes a locking head and a sealing head arranged on the locking head, the locking head is provided with a through hole, the sealing plug is provided with a sealing ring installation groove 2, and the locking Operating handles are provided on opposite sides of the tightening head, and external threads are provided on the locking head for threaded connection with the inner support sleeve of the flange.

进一步的，所述缸体与法兰内撑套之间采用螺栓连接，且缸体与法兰内撑套之间设置密封垫圈进行密封。Further, the cylinder body and the inner support sleeve of the flange are connected by bolts, and a sealing gasket is arranged between the cylinder body and the inner support sleeve of the flange for sealing.

一种管材耐压测试装置的测试方法，包括如下步骤：A test method for a pipe pressure test device, comprising the steps of:

1)待测试管材安装：1) Installation of pipes to be tested:

先将套筒套入待测试管材一端，然后放入卡压片及O型圈，调整好位置，与管材端部平齐时，拧紧堵头，即完成一端密封的安装；安装完后将待测试管材一端放入缸体中的滚轮上，然后在待测试管材另一端放入卡压片以及O型圈，然后拧紧锁紧套；First put the sleeve into one end of the pipe to be tested, then put in the clamping piece and O-ring, adjust the position, and when it is flush with the end of the pipe, tighten the plug to complete the installation of one end seal; Put one end of the test pipe on the roller in the cylinder, then put the clamping piece and O-ring on the other end of the pipe to be tested, and then tighten the locking sleeve;

2)管材变形在线计量装置安装：2) Installation of pipe deformation online metering device:

将第一导管与锁紧套相连通，并在第一导管末端设置三通阀门，将排气阀门与三通阀门一端口通过第二导管相连通，最后将三通阀门另一端口与U型管相连通；Connect the first conduit to the locking sleeve, and set a three-way valve at the end of the first conduit, connect the exhaust valve to one port of the three-way valve through the second conduit, and finally connect the other port of the three-way valve to the U-shaped pipe connected;

3)耐压测试：3) Pressure test:

耐外压测试：调节三通阀门，使得U型管与锁紧套之间导通，将进水阀门连接静液压试验机的打压线，通过待测管件内部气体体积变化，反映到U型管中液面差，测试时通过U型管液面差观察出管材变形量，通过显示器可直观的看出管材变形情况；External pressure resistance test: adjust the three-way valve to make the U-shaped pipe and the locking sleeve conduct, connect the water inlet valve to the pressure line of the hydrostatic testing machine, and reflect the change of the gas volume inside the pipe to be tested to the U-shaped pipe. The medium liquid level is poor. During the test, the deformation of the pipe can be observed through the liquid level difference of the U-shaped tube, and the deformation of the pipe can be seen intuitively through the display;

耐内压测试：调节三通阀门，使得U型管与排气阀门之间导通，将进气阀门连接抽真空管线，通过缸体内部气体体积变化，反映到U型管中液面差，通过U型管液面差观察出管材变形量，通过显示器可直观的看出管材变形情况。Internal pressure resistance test: adjust the three-way valve to make the U-shaped tube and the exhaust valve conduct, connect the intake valve to the vacuum pipeline, and reflect the liquid level difference in the U-shaped tube through the change of the gas volume inside the cylinder. The deformation of the pipe can be observed through the liquid level difference of the U-shaped pipe, and the deformation of the pipe can be seen intuitively through the display.

本发明的有益效果是：The beneficial effects of the present invention are:

1)通过对待测试管材两端进行密封封堵，并通过设置U型管，通过观察U型管中液面的升高与降低，准确的反映出测试管材的压扁情况，同时还配备摄像头及显示器，可实时观察管材变形情况，该装置不仅可定性测试管材变形，还能定量测试管材变形量。1) By sealing both ends of the pipe to be tested, and by setting a U-shaped tube, by observing the rise and fall of the liquid level in the U-shaped tube, it can accurately reflect the flattening of the test tube, and it is also equipped with a camera and The display can observe the deformation of the pipe in real time. This device can not only test the deformation of the pipe qualitatively, but also quantitatively test the deformation of the pipe.

2)该装置通过设置的排气阀门、进水阀门、进气阀门以及三通阀门，既可满足管材耐外压测试，也可用于耐负压测试，此装置不仅可用于塑料实壁管，也可用于复合管的检测；操作简便，提高了试验的效率。2) Through the exhaust valve, water inlet valve, inlet valve and three-way valve, the device can not only meet the external pressure resistance test of pipe materials, but also can be used for negative pressure resistance test. This device can not only be used for plastic solid wall pipes, It can also be used for the detection of composite pipes; it is easy to operate and improves the efficiency of the test.

附图说明Description of drawings

图1为本发明的三维结构示意图；Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

图2为本发明的内部结构示意图；Fig. 2 is a schematic diagram of the internal structure of the present invention;

图3为本发明的锁紧套结构示意图；Fig. 3 is a structural schematic diagram of a locking sleeve of the present invention;

图4为本发明的法兰内撑套结构示意图；Fig. 4 is a schematic structural view of the flange inner support sleeve of the present invention;

图5为本发明的堵头结构示意图；Fig. 5 is the schematic diagram of plug structure of the present invention;

图中：1、设备底架；2、U型管；3、第一导管；4、锁紧套；401、锁紧头；402、密封头；403、操作手柄；404、通孔；405、密封圈安装槽二；5、法兰内撑套；501、法兰盘；502、管材安装套；503、锁紧套安装套；504、限位台阶；6、密封垫圈；7、卡压片；8、缸体；9、摄像头；10、进水阀门；11、进气阀门；12、套筒；13、堵头；1301、堵头主体；1302、限位安装块；1303、六角凸台；1304、密封圈安装槽一；14、滚轮；15、待测试管材；16、排气阀门；17、第二导管；18、三通阀门；19-显示器。In the figure: 1. Equipment chassis; 2. U-shaped pipe; 3. First conduit; 4. Locking sleeve; 401. Locking head; 402. Sealing head; 403. Operating handle; 404. Through hole; 405. Sealing ring installation groove 2; 5. Flange inner support sleeve; 501. Flange plate; 502. Pipe installation sleeve; 503. Locking sleeve installation sleeve; 504. Limiting step; ; 8, cylinder block; 9, camera; 10, water inlet valve; 11, inlet valve; 12, sleeve; 13, plug; 1301, plug main body; 1302, limit installation block; 1303, hexagonal boss ; 1304, sealing ring installation groove one; 14, roller; 15, pipe material to be tested; 16, exhaust valve; 17, second conduit; 18, three-way valve; 19-display.

具体实施方式detailed description

以下结合说明书附图，对本发明作进一步描述。The present invention will be further described below in conjunction with the accompanying drawings of the description.

如图1-5所示，一种管材耐压测试装置，包括设备底架1、U型管2、第一导管3、锁紧套4、锁紧头401、密封头402、操作手柄403、通孔404、密封圈安装槽二405、法兰内撑套5、法兰盘501、管材安装套502、锁紧套安装套503、限位台阶504、密封垫圈6、卡压片7、缸体8、摄像头9、进水阀门10、进气阀门11、套筒12、堵头13、堵头主体1301、限位安装块1302、六角凸台1303、密封圈安装槽一1304、滚轮14、待测试管材15、排气阀门16、第二导管17及三通阀门18。As shown in Figures 1-5, a pipe pressure test device includes an equipment chassis 1, a U-shaped pipe 2, a first conduit 3, a locking sleeve 4, a locking head 401, a sealing head 402, an operating handle 403, Through hole 404, sealing ring installation groove 2 405, flange inner support sleeve 5, flange plate 501, pipe installation sleeve 502, locking sleeve installation sleeve 503, limit step 504, sealing gasket 6, clamping plate 7, cylinder Body 8, camera 9, water inlet valve 10, inlet valve 11, sleeve 12, plug 13, plug main body 1301, limit mounting block 1302, hexagonal boss 1303, sealing ring installation groove 1304, roller 14, The pipe to be tested 15 , the exhaust valve 16 , the second conduit 17 and the three-way valve 18 .

实施例：Example:

管材耐压测试装置，包括设备底架1，缸体8设置在设备底架1上方，缸体8内部底面为水平面，一端封闭，另一端敞开，缸体8内部底面在靠近其封口端位置设置滚轮14(滚轮14由滚轮架支撑)；缸体8开口端固定设置法兰内撑套5，待测试管材15一端设置在滚轮14上，另一端设置在法兰内撑套5上，且所述待测试管材15一端设有堵头13，另一端设有锁紧套4。Pipe pressure test device, including the equipment chassis 1, the cylinder body 8 is set above the equipment chassis 1, the inner bottom surface of the cylinder body 8 is a horizontal plane, one end is closed, the other end is open, and the inner bottom surface of the cylinder body 8 is set near its sealing end Roller 14 (roller 14 is supported by the roller frame); the open end of cylinder body 8 is fixedly provided with flange inner support sleeve 5, and one end of the pipe material 15 to be tested is arranged on the roller 14, and the other end is arranged on the flange inner support sleeve 5, and the One end of the pipe to be tested 15 is provided with a plug 13 and the other end is provided with a locking sleeve 4 .

锁紧套4与管材变形在线计量装置之间通过第一导管3相连通，用于管材耐外压测试计量；缸体8顶部设有排气阀门16，排气阀门16与管材变形在线计量装置之间通过第二导管17与相连通，用于管材耐内压测试计量；缸体8顶部设有进水阀门10，用于管材耐外压测试时，连接静液压试验机的打压线，第一导管3上设有进气阀门11，用于管材耐内压测试时，连接抽真空管线，第一导管3与第二导管17连接处设有三通阀门18，用于管材耐外压与耐内压之间的测试切换。The locking sleeve 4 is connected with the pipe deformation online metering device through the first conduit 3, which is used for pipe material resistance to external pressure testing and measurement; the top of the cylinder body 8 is provided with an exhaust valve 16, and the exhaust valve 16 is connected with the pipe deformation online metering device The second conduit 17 is used to communicate with each other through the second conduit 17, which is used for the measurement of the internal pressure resistance test of the pipe; the top of the cylinder body 8 is provided with a water inlet valve 10, which is used to connect the pressure line of the hydrostatic testing machine for the external pressure test of the pipe. An air inlet valve 11 is provided on the first conduit 3, which is used to connect the vacuum pipeline during the internal pressure resistance test of the pipe material. Test switching between internal pressures.

本实施例中管材耐压测试装置，还包括管材形变在线观察装置，管材形变在线观察装置包括摄像头9及显示器19，摄像头9设置在缸体8内侧顶部位置处，显示器19设置在设备底架1上，且显示器19与摄像头9之间信号连接。In this embodiment, the pipe pressure test device also includes a pipe deformation on-line observation device. The pipe deformation on-line observation device includes a camera 9 and a display 19. The camera 9 is arranged at the top position inside the cylinder body 8, and the display 19 is arranged on the equipment chassis 1. , and the signal connection between the display 19 and the camera 9 .

具体地，管材变形在线计量装置包括U型管2，U型管2固定设置在设备底架1上，U型管2一端口上设有带孔密封塞，第二导管17插接在带孔密封塞上，且所述U型管2表面设有刻度，内部装有液体，一般为有色液体，便于观察。Specifically, the on-line metering device for pipe deformation includes a U-shaped tube 2, which is fixedly arranged on the equipment chassis 1, a port with a hole in the U-shaped tube 2 is provided with a sealing plug, and the second conduit 17 is inserted into the hole with a hole. On the sealing plug, and the surface of the U-shaped tube 2 is provided with a scale, and the inside is filled with a liquid, generally a colored liquid, which is convenient for observation.

具体地，锁紧套4与待测试管材15之间设有卡压片7，卡压片7由两瓣组成，卡压片7的外表面采用锥面，卡压片7内表面设有连续齿型，且连续齿型末端设有O型圈槽，O型圈槽内设有O型圈。Specifically, a clamping piece 7 is provided between the locking sleeve 4 and the pipe material 15 to be tested. The clamping piece 7 is composed of two petals. Tooth type, and the end of the continuous tooth type is provided with an O-ring groove, and an O-ring is arranged in the O-ring groove.

具体地，待测试管材15在位于堵头13一端设有套筒12，所述套筒12与待测试管材15之间也设有卡压片7，套筒12内表面设置成锥面，且其锥度与卡压片7外表面一致。Specifically, the pipe material 15 to be tested is provided with a sleeve 12 at one end of the plug 13, and a crimping piece 7 is also provided between the sleeve 12 and the pipe material 15 to be tested, and the inner surface of the sleeve 12 is set as a conical surface, and Its taper is consistent with the outer surface of the pressing piece 7 .

具体地，堵头13包括堵头主体1301及设置在堵头主体1301端部的限位安装块1302，堵头主体1301上设有密封圈安装槽一1304，密封圈安装槽一1304内装有密封圈，限位安装块1302上设有六角凸台1303，便于堵头拆装，限位安装块1302上设有外螺纹连接，用于与套筒12螺纹连接，堵头拧紧过程中，将卡压片往内部挤压，以此夹紧待测试管材端部，达到密封效果。Specifically, the plug 13 includes a plug main body 1301 and a limit installation block 1302 arranged at the end of the plug main body 1301. The plug main body 1301 is provided with a sealing ring installation groove 1304, and the sealing ring installation groove 1304 is equipped with a sealing ring. The limit mounting block 1302 is provided with a hexagonal boss 1303, which is convenient for plug disassembly and assembly. The limit mounting block 1302 is provided with an external thread connection for threaded connection with the sleeve 12. During the tightening process of the plug, the card The pressing piece is squeezed to the inside, so as to clamp the end of the pipe to be tested to achieve the sealing effect.

具体地，法兰内撑套5包括法兰盘501、设置在法兰盘501一侧的管材安装套502及设置在法兰盘501另一侧的锁紧套安装套503，锁紧套安装套503末端设有限位台阶504。Specifically, the flange inner support sleeve 5 includes a flange 501, a pipe installation sleeve 502 arranged on one side of the flange 501, and a locking sleeve installation sleeve 503 arranged on the other side of the flange 501. A limit step 504 is provided at the end of the sleeve 503 .

具体地，锁紧套4包括锁紧头401及设置在锁紧头401上的密封头402，锁紧头401上设有通孔404，通孔404用于与第一导管3相连通，密封头402上设有密封圈安装槽二405，密封圈安装槽二405内装有密封圈，锁紧头401的两侧相对位置设有操作手柄403，锁紧头401上设有外螺纹，用于与法兰内撑套5螺纹连接，在锁紧套锁紧时将卡压片往法兰内撑套中挤压，以此夹紧管材。Specifically, the locking sleeve 4 includes a locking head 401 and a sealing head 402 arranged on the locking head 401, the locking head 401 is provided with a through hole 404, and the through hole 404 is used to communicate with the first conduit 3, sealing The head 402 is provided with a seal ring installation groove 2 405, a seal ring is installed in the seal ring installation groove 2 405, an operating handle 403 is provided on the opposite side of the locking head 401, and an external thread is provided on the locking head 401 for It is threadedly connected with the flange inner support sleeve 5, and when the locking sleeve is locked, the clamping piece is squeezed into the flange inner support sleeve to clamp the pipe.

缸体8与法兰内撑套5之间采用螺栓连接，且缸体8与法兰内撑套5之间设置密封垫圈6进行密封。The cylinder body 8 and the flange inner support sleeve 5 are connected by bolts, and a sealing gasket 6 is arranged between the cylinder body 8 and the flange inner support sleeve 5 for sealing.

管材耐压测试装置的测试方法，具体步骤如下：The test method of the pipe pressure test device, the specific steps are as follows:

1)待测试管材安装：1) Installation of pipes to be tested:

先将套筒套入待测试管材一端，然后放入卡压片及O型圈，调整好位置，与管材端部平齐时，拧紧堵头，即完成一端密封的安装；安装完后将待测试管材一端放入缸体中的滚轮上，然后在待测试管材另一端放入卡压片以及O型圈，然后拧紧锁紧套；First put the sleeve into one end of the pipe to be tested, then put in the clamping piece and O-ring, adjust the position, and when it is flush with the end of the pipe, tighten the plug to complete the installation of one end seal; Put one end of the test pipe on the roller in the cylinder, then put the clamping piece and O-ring on the other end of the pipe to be tested, and then tighten the locking sleeve;

2)管材变形在线计量装置安装：2) Installation of pipe deformation online metering device:

将第一导管与锁紧套相连通，并在第一导管末端设置三通阀门，将排气阀门与三通阀门一端口通过第二导管相连通，最后将三通阀门另一端口与U型管相连通；Connect the first conduit to the locking sleeve, and set a three-way valve at the end of the first conduit, connect the exhaust valve to one port of the three-way valve through the second conduit, and finally connect the other port of the three-way valve to the U-shaped pipe connected;

3)耐压测试：3) Pressure test:

耐外压测试：调节三通阀门，使得U型管与锁紧套之间导通，将进水阀门连接静液压试验机的打压线(进气阀门处于关闭状态)，通过待测管件内部气体体积变化，反映到U型管中液面差，测试时通过U型管液面差观察出管材变形量，通过显示器可直观的看出管材变形情况；External pressure resistance test: adjust the three-way valve to make the U-shaped pipe and the locking sleeve conduct, connect the water inlet valve to the pressure line of the hydrostatic testing machine (the inlet valve is in the closed state), and pass the gas inside the pipe to be tested. The volume change is reflected in the liquid level difference in the U-shaped tube. During the test, the deformation of the pipe can be observed through the liquid level difference of the U-shaped tube, and the deformation of the pipe can be seen intuitively through the display;

耐内压测试：调节三通阀门，使得U型管与排气阀门之间导通，将进气阀门连接抽真空管线(此时进水阀门处于关闭状态)，通过缸体内部气体体积变化，反映到U型管中液面差，通过U型管液面差观察出管材变形量，通过显示器可直观的看出管材变形情况。Internal pressure resistance test: adjust the three-way valve to make the U-shaped pipe and the exhaust valve conduct, connect the intake valve to the vacuum pipeline (the water intake valve is closed at this time), through the change of the gas volume inside the cylinder, It is reflected in the liquid level difference in the U-shaped tube, the deformation of the pipe can be observed through the liquid level difference of the U-shaped tube, and the deformation of the pipe can be seen intuitively through the display.

Claims (10)

一种管材耐压测试装置，其特征在于，包括设备底架(1)、缸体(8)、待测试管材(15)及管材变形在线计量装置，所述缸体(8)设置在设备底架(1)上方，所述缸体(8)内部底面在靠近其封口端位置设置滚轮(14)；所述缸体(8)开口端固定设置法兰内撑套(5)，所述待测试管材(15)一端设置在滚轮(14)上，另一端设置在法兰内撑套(5)上，且所述待测试管材(15)一端设有堵头(13)，另一端设有锁紧套(4)；所述锁紧套(4)与管材变形在线计量装置之间通过第一导管(3)相连通，用于管材耐外压测试计量；所述缸体(8)顶部设有排气阀门(16)，所述排气阀门(16)与管材变形在线计量装置之间通过第二导管(17)与相连通，用于管材耐内压测试计量；所述缸体(8)顶部设有进水阀门(10)，用于管材耐外压测试时，连接静液压试验机的打压线，所述第一导管(3)上设有进气阀门(11)，用于管材耐内压测试时，连接抽真空管线，所述第一导管(3)与第二导管(17)连接处设有三通阀门(18)，用于管材耐外压与耐内压之间的测试切换。A pipe pressure test device, characterized in that it includes an equipment chassis (1), a cylinder (8), a pipe to be tested (15) and an online measurement device for pipe deformation, and the cylinder (8) is arranged at the bottom of the equipment Above the frame (1), the inner bottom surface of the cylinder (8) is provided with a roller (14) near its sealing end; the open end of the cylinder (8) is fixed with a flange inner support sleeve (5), and the One end of the test pipe (15) is set on the roller (14), the other end is set on the flange inner support sleeve (5), and one end of the test pipe (15) is provided with a plug (13), and the other end is provided with a plug (13). The locking sleeve (4); the locking sleeve (4) is connected with the pipe deformation online metering device through the first conduit (3), which is used for the measurement of the external pressure resistance test of the pipe; the top of the cylinder (8) An exhaust valve (16) is provided, and the exhaust valve (16) communicates with the pipe deformation online metering device through a second conduit (17) to measure the internal pressure resistance of the pipe; the cylinder ( 8) There is a water inlet valve (10) on the top, which is used to connect the pressure line of the hydrostatic testing machine when the pipe is tested against external pressure. The first conduit (3) is provided with an inlet valve (11) for When testing the internal pressure resistance of the pipe material, connect the vacuum pipeline, and the connection between the first conduit (3) and the second conduit (17) is provided with a three-way valve (18), which is used for the adjustment between the external pressure resistance and the internal pressure resistance of the pipe material. Test toggle. 根据权利要求1所述的一种管材耐压测试装置，其特征在于，还包括管材形变在线观察装置，所述管材形变在线观察装置包括摄像头(9)及显示器(19)，所述摄像头(9)设置在缸体(8)内侧顶部位置处，所述显示器(19)设置在设备底架(1)上，且显示器(19)与摄像头(9)之间信号连接。A pipe pressure test device according to claim 1, characterized in that it also includes an online observation device for pipe deformation, the online observation device for pipe deformation includes a camera (9) and a display (19), and the camera (9 ) is arranged at the top position inside the cylinder body (8), the display (19) is arranged on the equipment chassis (1), and the signal connection between the display (19) and the camera (9). 根据权利要求1所述的一种管材耐压测试装置，其特征在于，所述管材变形在线计量装置，所述管材变形在线计量装置包括U型管(2)，所述U型管(2)固定设置在设备底架(1)上，所述U型管(2)一端口上设有带孔密封塞，且所述U型管(2)表面设有刻度，内部装有液体。A pipe pressure test device according to claim 1, characterized in that, the pipe deformation online metering device, the pipe deformation online metering device comprises a U-shaped tube (2), and the U-shaped tube (2) Fixedly arranged on the equipment chassis (1), a sealing plug with a hole is provided on one port of the U-shaped tube (2), and the surface of the U-shaped tube (2) is provided with a scale, and the inside is filled with liquid. 根据权利要求1所述的一种管材耐压测试装置，其特征在于，所述锁紧套(4)与待测试管材(15)之间设有卡压片(7)，所述卡压片(7)由两瓣组成，所述卡压片(7)的外表面采用锥面，卡压片(7)内表面设有连续齿型，且连续齿型末端设有O型圈槽，所述O型圈槽内设有O型圈。A pipe pressure test device according to claim 1, characterized in that a clamping piece (7) is provided between the locking sleeve (4) and the pipe to be tested (15), and the clamping piece (7) consists of two petals, the outer surface of the pressing piece (7) adopts a conical surface, the inner surface of the pressing piece (7) is provided with a continuous tooth profile, and the end of the continuous tooth profile is provided with an O-ring groove, so An O-ring is arranged in the O-ring groove. 根据权利要求1或4所述的一种管材耐压测试装置，其特征在于，所述待测试管材(15)在位于堵头(13)一端设有套筒(12)，所述套筒(12)与待测试管材(15)之间设有卡压片(7)，所述套筒(12)内表面设置成锥面，且其锥度与卡压片(7)外表面一致。A pipe pressure test device according to claim 1 or 4, characterized in that, the pipe to be tested (15) is provided with a sleeve (12) at one end of the plug (13), and the sleeve ( 12) A clamping piece (7) is arranged between the pipe to be tested (15), and the inner surface of the sleeve (12) is set as a conical surface, and its taper is consistent with the outer surface of the clamping piece (7). 根据权利要求5所述的一种管材耐压测试装置，其特征在于，所述堵头(13)包括堵头主体(1301)及设置在堵头主体(1301)端部的限位安装块(1302)，所述堵头主体(1301)上设有密封圈安装槽一(1304)，所述限位安装块(1302)上设有六角凸台(1303)，便于堵头拆装，所述限位安装块(1302)上设有外螺纹连接，用于与套筒(12) 螺纹连接。A pipe pressure test device according to claim 5, characterized in that the plug (13) comprises a plug body (1301) and a limit installation block ( 1302), the main body of the plug (1301) is provided with a sealing ring installation groove 1 (1304), and the limit installation block (1302) is provided with a hexagonal boss (1303), which is convenient for disassembly and assembly of the plug. The limit mounting block (1302) is provided with an external threaded connection for threaded connection with the sleeve (12). 根据权利要求1所述的一种管材耐压测试装置，其特征在于，所述法兰内撑套(5)包括法兰盘(501)、设置在法兰盘(501)一侧的管材安装套(502)及设置在法兰盘(501)另一侧的锁紧套安装套(503)，所述锁紧套安装套(503)末端设有限位台阶(504)。A pipe pressure test device according to claim 1, characterized in that, the flange inner support (5) includes a flange (501), a pipe installation set on one side of the flange (501) The sleeve (502) and the locking sleeve installation sleeve (503) arranged on the other side of the flange (501), the end of the locking sleeve installation sleeve (503) is provided with a limit step (504). 根据权利要求1所述的一种管材耐压测试装置，其特征在于，所述锁紧套(4)包括锁紧头(401)及设置在锁紧头(401)上的密封头(402)，所述锁紧头(401)上设有通孔(404)，所述密封头(402)上设有密封圈安装槽二(405)，所述锁紧头(401)的两侧相对位置设有操作手柄(403)，所述锁紧头(401)上设有外螺纹，用于与法兰内撑套(5)螺纹连接。A pipe pressure test device according to claim 1, characterized in that the locking sleeve (4) comprises a locking head (401) and a sealing head (402) arranged on the locking head (401) , the locking head (401) is provided with a through hole (404), the sealing head (402) is provided with a sealing ring installation groove 2 (405), and the relative positions of the two sides of the locking head (401) An operating handle (403) is provided, and an external thread is provided on the locking head (401) for threaded connection with the flange inner support sleeve (5). 根据权利要求1所述的一种管材耐压测试装置，其特征在于，所述缸体(8)与法兰内撑套(5)之间采用螺栓连接，且缸体(8)与法兰内撑套(5)之间设置密封垫圈(6)进行密封。A pipe pressure test device according to claim 1, characterized in that, the cylinder (8) and the flange inner support sleeve (5) are connected by bolts, and the cylinder (8) and the flange Sealing gaskets (6) are arranged between the inner support sleeves (5) for sealing. 根据权利要求1所述的一种管材耐压测试装置的测试方法，其特征在于，包括如下步骤：The testing method of a pipe pressure test device according to claim 1, characterized in that, comprising the steps of: 1)待测试管材安装：1) Installation of pipes to be tested: 1)先将套筒套入待测试管材一端，然后放入卡压片及O型圈，调整好位置，与管材端部平齐时，拧紧堵头，即完成一端密封的安装；安装完后将待测试管材一端放入缸体中的滚轮上，然后在待测试管材另一端放入卡压片以及O型圈，然后拧紧锁紧套；1) First put the sleeve into one end of the pipe to be tested, then put in the clamping piece and O-ring, adjust the position, and when it is flush with the end of the pipe, tighten the plug to complete the installation of one end seal; after installation Put one end of the pipe to be tested on the roller in the cylinder, then put the clamping piece and O-ring on the other end of the pipe to be tested, and then tighten the locking sleeve; 2)管材变形在线计量装置安装：2) Installation of pipe deformation online metering device: 将第一导管与锁紧套相连通，并在第一导管末端设置三通阀门，将排气阀门与三通阀门一端口通过第二导管相连通，最后将三通阀门另一端口与U型管相连通；Connect the first conduit to the locking sleeve, and set a three-way valve at the end of the first conduit, connect the exhaust valve to one port of the three-way valve through the second conduit, and finally connect the other port of the three-way valve to the U-shaped pipe connected; 3)耐压测试：3) Pressure test: 耐外压测试：调节三通阀门，使得U型管与锁紧套之间导通，将进水阀门连接静液压试验机的打压线，通过待测管件内部气体体积变化，反映到U型管中液面差，测试时通过U型管液面差观察出管材变形量，通过显示器可直观的看出管材变形情况；External pressure resistance test: adjust the three-way valve to make the U-shaped pipe and the locking sleeve conduct, connect the water inlet valve to the pressure line of the hydrostatic testing machine, and reflect the change of the gas volume inside the pipe to be tested to the U-shaped pipe. The medium liquid level is poor. During the test, the deformation of the pipe can be observed through the liquid level difference of the U-shaped tube, and the deformation of the pipe can be seen intuitively through the display; 耐内压测试：调节三通阀门，使得U型管与排气阀门之间导通，将进气阀门连接抽真空管线，通过缸体内部气体体积变化，反映到U型管中液面差，通过U型管液面差观察出管材变形量，通过显示器可直观的看出管材变形情况。Internal pressure resistance test: adjust the three-way valve to make the U-shaped tube and the exhaust valve conduct, connect the intake valve to the vacuum pipeline, and reflect the liquid level difference in the U-shaped tube through the change of the gas volume inside the cylinder. The deformation of the pipe can be observed through the liquid level difference of the U-shaped pipe, and the deformation of the pipe can be seen intuitively through the display.
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