CN101294884B - Supercharging method and apparatus for non-metal pipeline pressure pilot system - Google Patents

Supercharging method and apparatus for non-metal pipeline pressure pilot system Download PDF

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Publication number
CN101294884B
CN101294884B CN2007100721293A CN200710072129A CN101294884B CN 101294884 B CN101294884 B CN 101294884B CN 2007100721293 A CN2007100721293 A CN 2007100721293A CN 200710072129 A CN200710072129 A CN 200710072129A CN 101294884 B CN101294884 B CN 101294884B
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China
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pressure
pipeline
low pressure
connects
pressurized cylinder
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Expired - Fee Related
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CN2007100721293A
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CN101294884A (en
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王林
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Abstract

The invention relates to a method and a device for supercharging a non-metal pipeline pressure testing system, particularly to a supercharging method and a supercharging device for realizing a pressure environment required by non-metal pipeline pressure tests. In the traditional process of the non-metal pipeline pressure test, the pressure environment required by the non-metal pipeline pressure test system for realizing short-term circulating pressure is not available. The supercharging method comprises the following steps: adjusting a low pressure control pipeline; enabling a low-pressure control system to output a low pressure which can automatically rise and fall with 25 turns/min through the regulation of a selector valve; inputting the low pressure to the low pressure end of a pressure cylinder; supercharging by utilizing the linkage of a big and a small cylinder of the pressure cylinder to increase the pressure at the output end to 50MPa required by the test; and conducting a short-term circulating test for the pattern. The method and the device are used for conducting the non-metal pipeline pressure test.

Description

Nonmetallic pipe pipeline pressure pilot system boosting method and device
Technical field:
The present invention relates to the apparatus that a kind of nonmetallic pipe pipeline pressure pilot system boosting method and this boosting method use.
Background technology:
According to the regulation of GB5351-85, SY/T6267-1996, in nonmetallic pipe pipeline pressure pilot process, need to realize following 3 kinds of pressure environments:
1. failure pressure---60MPa in short-term, suppressed time is 60-70 second.
2. hydrostatic test---60MPa, constant voltage keeps more than 16 hours.
3. circulating pressure---the 50MPa automatic lifting is pressed 25 cycles/min in short-term, 5000 times.
In traditional nonmetallic pipe pipeline pressure pilot process, the high energy of the intensity that envelope is pressed reaches 60Mpa.Single from the requirement of failure pressure and hydrostatic test in short-term, common hydraulic system can be finished, but finish the experimental enviroment of circulating pressure in short-term, in high pressure, also to finish regularly supercharging, actions such as fast lifting pressure, promptly on average in about 2~3 seconds time, finish the step-down that once adds 50MPa~0, then need on fluid pressure line, install additional and can control the operation valve that commutation produces buck by boosting of 0~50MPa.And the highest withstand voltage 25MPa that has only of this valve can't bear the high pressure of 60Mpa, so there is not to realize the desired pressure environment of nonmetallic pipe pipeline pressure pilot system of circulating pressure in short-term.
Summary of the invention:
The purpose of this invention is to provide a kind of nonmetallic pipe pipeline pressure pilot system boosting method and device, can realize the desired pressure environment of nonmetallic pipe pipeline pressure pilot.
Above-mentioned purpose realizes by following technical scheme:
Nonmetallic pipe pipeline pressure pilot system boosting method, its composition comprises: adjust the low voltage control pipeline, regulate the low pressure that makes 25 cycles of low voltage control system output/min automatic lifting pressure by reversal valve, import the pressurized cylinder low pressure end then, utilize big or small cylinder interlock the carrying out supercharging of pressurized cylinder, the pressure of output terminal is increased, and reach the required 50MPa of test, at last style is carried out circulating pressure test in short-term.
Nonmetallic pipe pipeline pressure pilot system supercharging device, its composition comprises: low pressure voltage supply system, described low pressure voltage supply system connects pressure charging system, described pressure charging system attended operation system, pipeline A and pipeline B are connected the low pressure end of pressurized cylinder in the pressure charging system respectively in the described low pressure voltage supply system, the low pressure end of described pressurized cylinder connects the high-pressure side of pressurized cylinder, the high-pressure side of described pressurized cylinder connects valve A, described valve A connects the test specimen in the described operating system, and described test specimen connects valve B.
Described nonmetallic pipe pipeline pressure pilot system supercharging device, fuel tank connecting line A in the described low pressure voltage supply system, pipeline B, described pipeline A connects the pressurized cylinder low pressure end by reversal valve, described pipeline B connects oil pump, described oil pump connects tensimeter, surplus valve, reversal valve respectively, and described reversal valve connects the low pressure end of pressurized cylinder by pipeline B.
Beneficial effect of the present invention:
The present invention can realize GB5351-85, SY/T6267-1996 the regulation circulating pressure in short-term (the 50MPa automatic lifting is pressed 25 cycles/min, 5000 times) pressure environment, nonmetal pipeline pressure experimental device with the present invention manufacturing, satisfy standard-required, the reliability of tested test part strengthens greatly.
2. the present invention at first controls pressure in low pressure voltage supply system, regulates making the low voltage control system output low pressure that 25 cycles/the min automatic lifting is pressed by reversal valve.Import the pressurized cylinder low pressure end then, utilize the principle of the big or small cylinder interlock supercharging of pressurized cylinder, the pressure of output terminal is increased, and reach the required 50MPa of test, at last style is carried out circulating pressure test in short-term.Can adopt the supercharging mode of " liquid-liquid ", " gas-liquid " when the method for this kind supercharging is used for the nonmetallic pipe pipeline pressure pilot system, realize supercharging.
Description of drawings:
Accompanying drawing 1 is the device synoptic diagram of this product.Upper left box is a pressure charging system among the figure, and upper right box is an operating system, and lower frame is a low pressure voltage supply system.
Embodiment:
Embodiment 1:
Nonmetallic pipe pipeline pressure pilot system boosting method, its composition comprises: adjust the low voltage control pipeline, it is characterized in that: regulate making the low voltage control system output low pressure that 25 cycles/the min automatic lifting is pressed by reversal valve, import the pressurized cylinder low pressure end then, utilize big or small cylinder interlock the carrying out supercharging of pressurized cylinder, the pressure of output terminal is increased, and reach the required 50MPa of test, at last style is carried out circulating pressure test in short-term.
Embodiment 2:
Nonmetallic pipe pipeline pressure pilot system supercharging device, its composition comprises: low pressure voltage supply system 1, described low pressure voltage supply system connects pressure charging system 2, described pressure charging system attended operation system 3, pipeline A is that piece number 4 is the low pressure end 6 that piece number 5 is connected pressurized cylinder in the pressure charging system respectively in the accompanying drawing with pipeline B in the accompanying drawing in the described low pressure voltage supply system, the low pressure end of described pressurized cylinder connects the high-pressure side 7 of pressurized cylinder, it is piece number 8 in the accompanying drawing that the high-pressure side of described pressurized cylinder connects valve A, described valve A connects the test specimen 9 in the described operating system, and it is piece number 10 in the accompanying drawing that described test specimen connects valve B.
Described nonmetallic pipe pipeline pressure pilot system supercharging device, fuel tank 11 connecting line A in the described low pressure voltage supply system, pipeline B, described pipeline A connects the pressurized cylinder low pressure end by reversal valve, described pipeline B connects oil pump 12, described oil pump connects tensimeter 13, surplus valve 14, reversal valve 15 respectively, and described reversal valve connects the low pressure end of pressurized cylinder by pipeline B.

Claims (2)

1. nonmetallic pipe pipeline pressure pilot system supercharging device, its composition comprises: low pressure voltage supply system, it is characterized in that: described low pressure voltage supply system connects pressure charging system, described pressure charging system attended operation system, pipeline A and pipeline B are connected the low pressure end of pressurized cylinder in the pressure charging system respectively in the described low pressure voltage supply system, the low pressure end of described pressurized cylinder connects the high-pressure side of pressurized cylinder, the high-pressure side of described pressurized cylinder connects valve A, described valve A connects the test specimen in the described operating system, and the described test specimen other end connects valve B.
2. nonmetallic pipe pipeline pressure pilot system supercharging device according to claim 1, it is characterized in that: fuel tank connecting line A, pipeline B in the described low pressure voltage supply system, described pipeline A connects the pressurized cylinder low pressure end by reversal valve, described pipeline B connects oil pump, described oil pump connects tensimeter, surplus valve, reversal valve respectively, and described reversal valve connects the low pressure end of pressurized cylinder by pipeline B.
CN2007100721293A 2007-04-28 2007-04-28 Supercharging method and apparatus for non-metal pipeline pressure pilot system Expired - Fee Related CN101294884B (en)

Priority Applications (1)

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CN2007100721293A CN101294884B (en) 2007-04-28 2007-04-28 Supercharging method and apparatus for non-metal pipeline pressure pilot system

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Application Number Priority Date Filing Date Title
CN2007100721293A CN101294884B (en) 2007-04-28 2007-04-28 Supercharging method and apparatus for non-metal pipeline pressure pilot system

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CN101294884A CN101294884A (en) 2008-10-29
CN101294884B true CN101294884B (en) 2010-10-20

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102288491A (en) * 2011-05-17 2011-12-21 上海通和船用设备有限公司 High-pressure oil pipe pressure testing apparatus
CN103063523B (en) * 2012-12-25 2014-10-15 西安建筑科技大学 Hollow fiber membrane wire blasting-resistance pressure and compression-resistance pressure testing device and method
CN104075947B (en) * 2014-06-19 2017-02-15 广州特种机电设备检测研究院 Pressure-reduction testing device for testing anti-explosion products
CN106039624A (en) * 2016-07-26 2016-10-26 江苏建筑职业技术学院 Unpowered fire engine water pipe water testing device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2045490U (en) * 1989-03-18 1989-10-04 黄云龙 Multifunction pressure tester
CN2491822Y (en) * 2001-08-28 2002-05-15 机械工业部西安重型机械研究所 Water filling head appts. for pressure test
CN2854564Y (en) * 2005-12-23 2007-01-03 重庆宗申技术开发研究有限公司 Pressure testing device for vehicle air intake pipe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2045490U (en) * 1989-03-18 1989-10-04 黄云龙 Multifunction pressure tester
CN2491822Y (en) * 2001-08-28 2002-05-15 机械工业部西安重型机械研究所 Water filling head appts. for pressure test
CN2854564Y (en) * 2005-12-23 2007-01-03 重庆宗申技术开发研究有限公司 Pressure testing device for vehicle air intake pipe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP特开平9-178630A 1997.07.11

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