CN110207975A - A kind of adjusting of safety valve pressure and package seal checker and method - Google Patents

A kind of adjusting of safety valve pressure and package seal checker and method Download PDF

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Publication number
CN110207975A
CN110207975A CN201910574348.4A CN201910574348A CN110207975A CN 110207975 A CN110207975 A CN 110207975A CN 201910574348 A CN201910574348 A CN 201910574348A CN 110207975 A CN110207975 A CN 110207975A
Authority
CN
China
Prior art keywords
valve
pressure
way
safety valve
shut
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910574348.4A
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Chinese (zh)
Inventor
官金塔
张晓峰
王巍
张瑞
卞光宇
王禹臻
焦添
王伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Nuclear Power Corp
Original Assignee
Jiangsu Nuclear Power Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Nuclear Power Corp filed Critical Jiangsu Nuclear Power Corp
Priority to CN201910574348.4A priority Critical patent/CN110207975A/en
Publication of CN110207975A publication Critical patent/CN110207975A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • G01M13/003Machine valves
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2876Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for valves

Abstract

The invention belongs to safety valve technical field of performance test, and in particular to a kind of adjusting of safety valve pressure and package seal checker and method.Pressure source is connect by pipeline with four-way in the present invention, the second of four-way, which is led to, is connected to safety valve, the third of four-way, which is led to, is connected to volumetric standard, the four-way of four-way is connect with small volumetric standard, the other end that small standard is held is connect with threeway, the second of threeway, which is led to, is connected to measured valve, and the logical third with four-way of the third of threeway, which is led to, to be connect;Precision pressure sensor one is mounted on volumetric standard, and the third that precision pressure sensor two is mounted on four-way is led to;Precision pressure sensor one, precision pressure sensor two pass through in cable connection to connection pressure sensor computer.The present invention effectively solves that leakage can not be drawn by outlet to access computer by high-precision pressure gauge and realize intelligent and mobility the case where detecting valve leak.

Description

A kind of adjusting of safety valve pressure and package seal checker and method
Technical field
The invention belongs to safety valve technical field of performance test, and in particular to a kind of adjusting of safety valve pressure and sealing detection Device and method.
Background technique
The common pressure of safety valve and leakage test method are mainly carried out by pressure calibration currently on the market, for The leakage test of valve, mainly by stopping leakage in the roof liquid or helium is detected, internal leakage is main for the detection method of external leakage By entrance into pressure, outlet enters measuring cup detection (test(ing) medium is liquid) by leak-off connection after blocking or number bubble method detects (test(ing) medium is gas) has the disadvantage in that the adjusting of existing safety valve pressure and leakage test method
1, existing test-bed is generally all bigger, and is fixed on a certain place, and valve needs handling to specified if you need to test Position is collided with and is fallen there are handling risk, and expends handling time and manpower and material resources back and forth;
2, the valve that can not carry out drawing leakage for outlet can not carry out pressure setting and leakage test;
3, poor for non-enclosed safety valve sealing performance detection precision;
4, large bore valves outlet need to be processed and dedicated draws leakage device;
5, since the pressure setting of safety valve is both needed to artificially to drop pressure gauge suddenly to judge set-pressure value, there are people because not Certainty and the low problem of precision.
In view of the above problems, we propose a kind of method of more convenient science to the verification of safety valve to solve, it is this Test method accuracy is high, easy to operate intelligence, judges safety valve set pressure without manually visualizing, leakage test is without configuration Leakage device or pipeline are drawn in outlet, can also carry to scene and test valve, and need to only connect with valve inlet can be achieved with pressing Power adjusting and leakage test.
Summary of the invention
Present invention solves the technical problem that:
In view of the deficiencies of the prior art, the present invention provides a kind of adjusting of safety valve pressure and package seal checker and method, It is able to achieve and is only connect with valve inlet, can be achieved with pressure setting and leakage quantitative measurment, pass through outlet leakage situation with previous Judge that leakage rate has larger difference, can effectively solve that leakage can not be drawn by outlet to pass through the case where detecting valve leak High-precision pressure gauge accesses computer and realizes intelligent and mobility.
The technical solution adopted by the present invention:
A kind of adjusting of safety valve pressure and package seal checker are passed including volumetric standard, small volumetric standard, precision pressure Sensor one, precision pressure sensor two, connection pressure sensor computer, safety valve, pressure source, pressure source pass through pipeline and four-way Connection, the second of four-way, which is led to, is connected to safety valve, and the third of four-way, which is led to, is connected to volumetric standard, the four-way of four-way and small mark Quasi- container connection, the other end that small standard is held are connect with threeway, and the second of threeway, which is led to, is connected to measured valve, the third of threeway The logical third with four-way, which is led to, to be connect;Precision pressure sensor one is mounted on volumetric standard, and precision pressure sensor two is mounted on On the third of four-way is logical;Precision pressure sensor one, precision pressure sensor two are by cable connection to connecting pressure sensor On computer.
Pressure source, which passes through, is equipped with regulating valve between pipeline and four-way.
The third of four-way is logical to be connected with shut-off valve, volumetric standard, pressure reducing valve, shut-off valve in turn.
The four-way of four-way successively connect with shut-off valve, small volumetric standard
The third of threeway is logical to be connect with the other end of shut-off valve;Precision pressure sensor two be mounted on shut-off valve and threeway it Between.
A kind of method of safety valve pressure adjusting and sealing detection, includes the following steps:
Step 1: connection safety valve pressure setting and package seal checker
Step 2: closing shut-off valve and opening shut-off valve;
Step 3: by adjusting pressure regulating valve until tested safety valve jumping up, precision pressure biography is read by computer automatically Sensor pressure peak, as safety valve set pressure value;
Step 4: close shut-off valve, open shut-off valve and;
Step 5: adjusting pressure reducing valve to safety valve sealed pressure, shut-off valve is closed;
Step 6: the timing since computer, detects pressure sensor pressure drop △ P at the appointed time, while observing pressure The pressure of sensor is constant;
Step 7: calculating leakage rate Vx
In the step 7, pass through formula: Vx=△ P × V0/P0, calculate leakage rate Vx, wherein P0For atmospheric pressure.
Beneficial effects of the present invention:
(1) a kind of safety valve pressure adjusting provided by the invention and package seal checker and method, connect this method and relate to And after associated pipe and equipment, the leakage rate for detecting tested equipment that just can be quantitative by pressure drop, and without calculating in advance Equipment under test pressurized space volume is suitable for all bore valves.
(2) a kind of safety valve pressure adjusting provided by the invention and package seal checker and method, can effectively solve the problem that Capable valve leakage automatic inspection quantitative measurment is leaked into for that can not draw by outlet, for new portable safety valve testing tool.
Detailed description of the invention
Fig. 1 is a kind of safety valve pressure adjusting provided by the invention and package seal checker structural schematic diagram;
In figure: 1- regulating valve, 2- shut-off valve, 3- volumetric standard, 4- pressure reducing valve, 5- shut-off valve, 6- shut-off valve, 7- are small Volumetric standard, 8- precision pressure sensor one, 9- precision pressure sensor two, 10- measured valve, 11- connection pressure sensor Computer, 12- safety valve, 13- pressure source.
Specific embodiment
A kind of safety valve pressure adjusting provided by the invention and sealing detection are filled in the following with reference to the drawings and specific embodiments It sets and method is described in further detail.
As shown in Figure 1, a kind of safety valve pressure adjusting provided by the invention and package seal checker, including regulating valve 1, cut Only valve 2, volumetric standard 3, pressure reducing valve 4, shut-off valve 5, shut-off valve 6, small volumetric standard 7, precision pressure sensor 1, precision Pressure sensor 29, measured valve 10, connection pressure sensor computer 11, safety valve 12, pressure source 13,
Pressure source 13 is connect by pipeline with four-way, and pipeline is equipped with regulating valve 1, and the second of four-way, which is led to, is connected to safety valve 12, the third of four-way is logical to be connected with shut-off valve 2, volumetric standard 3, pressure reducing valve 4, shut-off valve 5 in turn, the four-way of four-way successively with Shut-off valve 6, small standard hold 7 connections, and the other end of small volumetric standard 7 is connect with threeway, the second of threeway lead to be connected to by Side valve door 10, the third of threeway is logical to be connect with the other end of shut-off valve 5;Precision pressure sensor 1 is mounted on volumetric standard 3 On, precision pressure sensor 29 is mounted between shut-off valve 5 and threeway.
Precision pressure sensor 1, precision pressure sensor 29 pass through cable connection to connection pressure sensor computer 11 On.
The method of a kind of safety valve pressure adjusting and sealing detection provided by the invention, includes the following steps:
Step 1: as shown in Figure 1, pipeline between component 2 to 4 is connected with container, by toward filling in container and pipeline Water is poured in big measuring cup after water, pipeline and overall vessel volume V0 between measuring part 2 to 4.
Step 2: each component is pressed Fig. 1 connection.
Step 3: closing shut-off valve 2 and 5, shut-off valve 6 is opened.
Step 4: adjusting pressure by regulating valve 1 until tested 10 take-off of safety valve, reads precision pressure by computer automatically 9 pressure peak of sensor, as safety valve set pressure value.
Step 5: closing shut-off valve 6, shut-off valve 2 and 5 is opened.
Step 6: adjusting pressure reducing valve 4 to safety valve sealed pressure, shut-off valve 2 is closed.
Step 7: the timing since computer, detects the pressure drop △ P at the appointed time of pressure sensor 8, while observing pressure The pressure of sensor 9 is constant.
Step 8: passing through formula: Vx=△ P × V0/P0, calculate leakage rate Vx, wherein P0For atmospheric pressure.
The present invention is explained in detail above in conjunction with attached drawing and practical operation, but the present invention is not limited to above-mentioned works Make, within the knowledge of a person skilled in the art, can also do without departing from the purpose of the present invention Various change out, the variation etc. including size.The prior art can be used in the content being not described in detail in the present invention.

Claims (7)

1. a kind of safety valve pressure adjusting and package seal checker, it is characterised in that: hold including volumetric standard (3), small standard Device (7), precision pressure sensor one (8), precision pressure sensor two (9), connection pressure sensor computer (11), safety valve (12), pressure source (13), pressure source (13) are connect by pipeline with four-way, and the second of four-way, which is led to, to be connected to safety valve (12), and four Logical third, which is led to, to be connected to volumetric standard (3), and the four-way of four-way is connect with small volumetric standard (7), small volumetric standard (7) The other end connect with threeway, the second of threeway, which is led to, to be connected to measured valve (10), and the third of threeway is logical logical with the third of four-way Connection;Precision pressure sensor one (8) is mounted on volumetric standard (3), and precision pressure sensor two (9) is mounted on the of four-way In threeway;Precision pressure sensor one (8), precision pressure sensor two (9) pass through cable connection to connection pressure sensor electricity On brain (11).
2. a kind of safety valve pressure adjusting according to claim 1 and package seal checker, it is characterised in that: pressure source (13) by being equipped with regulating valve (1) between pipeline and four-way.
3. a kind of safety valve pressure adjusting according to claim 2 and package seal checker, it is characterised in that: the of four-way Threeway is connected with shut-off valve (2), volumetric standard (3), pressure reducing valve (4), shut-off valve (5) in turn.
4. a kind of safety valve pressure adjusting according to claim 3 and package seal checker, it is characterised in that: the of four-way Four-way is successively connect with shut-off valve (6), small volumetric standard (7).
5. a kind of safety valve pressure adjusting according to claim 4 and package seal checker, it is characterised in that: the of threeway Threeway is connect with the other end of shut-off valve (5);Precision pressure sensor two (9) is mounted between shut-off valve (5) and threeway.
6. a kind of method of safety valve pressure adjusting and sealing detection, characterized by the following steps:
Step 1: connection safety valve pressure setting and package seal checker
Step 2: closing shut-off valve (2) and (5), open shut-off valve (6);
Step 3: adjusting pressure by regulating valve (1) until tested safety valve (10) take-off, reads precision pressure by computer automatically Sensor (9) pressure peak, as safety valve set pressure value;
Step 4: closing shut-off valve (6), open shut-off valve (2) and (5);
Step 5: adjusting pressure reducing valve (4) to safety valve sealed pressure, close shut-off valve (2);
Step 6: the timing since computer, detects pressure sensor (8) pressure drop △ P at the appointed time, while observing pressure biography The pressure of sensor (9) is constant;
Step 7: calculating leakage rate Vx
7. the method for a kind of safety valve pressure adjusting and sealing detection according to claim 6, it is characterised in that: the step In rapid seven, pass through formula: Vx=△ P × V0/P0, calculate leakage rate Vx, wherein P0For atmospheric pressure.
CN201910574348.4A 2019-06-28 2019-06-28 A kind of adjusting of safety valve pressure and package seal checker and method Pending CN110207975A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910574348.4A CN110207975A (en) 2019-06-28 2019-06-28 A kind of adjusting of safety valve pressure and package seal checker and method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910574348.4A CN110207975A (en) 2019-06-28 2019-06-28 A kind of adjusting of safety valve pressure and package seal checker and method
RU2020115671A RU2743735C1 (en) 2019-06-28 2020-05-12 Pressure control device and safety control of safety valve and method of operation thereof

Publications (1)

Publication Number Publication Date
CN110207975A true CN110207975A (en) 2019-09-06

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110608877A (en) * 2019-09-19 2019-12-24 湖南研华机电设备有限公司 Engine oil pressure relief valve test bed
CN111271340A (en) * 2020-01-16 2020-06-12 中广核核电运营有限公司 Off-line setting device and method for safety valve of steam turbine oil regulating system
CN112304536A (en) * 2020-11-04 2021-02-02 上海加冷松芝汽车空调股份有限公司 Decompression valve detection equipment and detection method

Family Cites Families (6)

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Publication number Priority date Publication date Assignee Title
SU1548677A1 (en) * 1987-12-30 1990-03-07 Горьковский конструкторско-технологический институт автомобильной промышленности Apparatus for measuring leaks of liquid
SU1610355A1 (en) * 1989-01-05 1990-11-30 Н.И.Хаспеков и Н.Г.Макаренко Apparatus for checking hermetic sealing of hollow articles
CN2205548Y (en) * 1994-12-01 1995-08-16 北京思锐阳新技术开发中心 Portable safety valve on-line tester
CN2423482Y (en) * 2000-06-08 2001-03-14 北京沙驼石化工程技术开发有限公司 Safety valve on-line regulating correcting instrument
CN2852090Y (en) * 2005-12-26 2006-12-27 保一集团有限公司 Low-temperature valve testing device based on computer data acquisition
RU162141U1 (en) * 2015-10-06 2016-05-27 Акционерное общество "Опытное Конструкторское Бюро Машиностроения имени И.И. Африкантова" (АО "ОКБМ Африкантов") SAFETY VALVE TEST STAND

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110608877A (en) * 2019-09-19 2019-12-24 湖南研华机电设备有限公司 Engine oil pressure relief valve test bed
CN111271340A (en) * 2020-01-16 2020-06-12 中广核核电运营有限公司 Off-line setting device and method for safety valve of steam turbine oil regulating system
CN112304536A (en) * 2020-11-04 2021-02-02 上海加冷松芝汽车空调股份有限公司 Decompression valve detection equipment and detection method

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