CN104359695B - Nuclear-grade check valve dynamic reverse flow test device - Google Patents
Nuclear-grade check valve dynamic reverse flow test device Download PDFInfo
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- CN104359695B CN104359695B CN201410648529.4A CN201410648529A CN104359695B CN 104359695 B CN104359695 B CN 104359695B CN 201410648529 A CN201410648529 A CN 201410648529A CN 104359695 B CN104359695 B CN 104359695B
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Abstract
The invention provides a nuclear-grade check valve dynamic reverse flow test device which comprises a circulating pump, a first flow meter, a second flow meter, a third flow meter, a first electrically-operated valve, a second electrically-operated valve, a third electrically-operated valve, a fourth electrically-operated valve, a fifth electrically-operated valve, a sixth electrically-operated valve, a tested nuclear-grade check valve, a first flange, a second flange, a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a fifth pipeline and a sixth pipeline. Through the nuclear-grade check valve dynamic reverse flow test device, under appraisal test working condition parameters of the appraised nuclear-grade check valve, the forward flow passing the nuclear-grade check valve is set and the nuclear-grade check valve is made to be in an opened state, then a conversion method is adopted, the flow direction of fluid in the pipeline where the nuclear-grade check valve is located is changed, the nuclear-grade check valve is rapidly closed under the effect of the reverse fluid in the corresponding pipeline, and therefore the reverse flow closing capacity of the appraised nuclear-grade check valve is verified.
Description
Technical field
The present invention relates to the counter current experiment field of core level return valve function qualification test, and in particular to a seed nucleus level check-valves
Dynamic countercurrent experimental rig.
Background technology
Having phase is required to the counter current experiment in core level return valve function qualification test in U.S.'s ASME QME-1-2002 standards
Should describe, i.e., need to set up in counter current experiment the checking of reverse flow is converted to by the forward flow of core level check-valves moment
Process, but do not point out specific implementation method.Also have no that this transient state adverse current creates process specific implementation method both at home and abroad
It is open to report.
In view of drawbacks described above, creator of the present invention is through prolonged research and tests, and is finally obtained the present invention.
The content of the invention
It is an object of the invention to provide a seed nucleus level check-valves dynamic countercurrent experimental rig, to overcome above-mentioned technology to lack
Fall into.
For achieving the above object, the technical solution used in the present invention is：The examination of one seed nucleus level check-valves dynamic countercurrent is provided
Experiment device, the device include circulating pump, first flowmeter, second flowmeter, the 3rd flowmeter, the first motor-driven valve, second electronic
Valve, the 3rd motor-driven valve, the 4th motor-driven valve, the 5th motor-driven valve, the 6th motor-driven valve, tested check level check-valves, first flange, second
Flange, the first pipeline, second pipe, the 3rd pipeline, the 4th pipeline, the 5th pipeline and the 6th pipeline；
The first flowmeter, the second motor-driven valve and the 3rd motor-driven valve are arranged on first pipeline, the second
Gauge and the first motor-driven valve are arranged on the 3rd pipeline, and the 4th motor-driven valve is arranged on the second pipe, described
5th motor-driven valve is arranged on the 4th pipeline, and the 3rd flowmeter and the 6th motor-driven valve are arranged on the 5th pipeline
On, the tested check level check-valves is arranged on the 6th pipeline；
One end of first pipeline is connected with the delivery port of the circulating pump, and the other end of first pipeline passes through institute
One end that first flange is stated with the 6th pipeline is connected, and one end of the second pipe is connected with the water inlet of the circulating pump
Connect, the other end of the second pipe is connected with the other end of the 6th pipeline by the second flange, the 3rd pipe
Road, the 4th pipeline and the 5th pipeline are arranged in parallel between first pipeline and second pipe, one end of the 4th pipeline
It is arranged between the second flange and the 4th motor-driven valve, one end of the 5th pipeline is arranged on the first flange and the 3rd
Between motor-driven valve.
The beneficial effects of the present invention is：By above-mentioned core level check-valves dynamic countercurrent experimental rig, it is possible to realize quilt
Identification core level check-valves under qualification test duty parameter initially sets up the positive flow by core level check-valves and stops core level
Return valve and be in opening, then using conversion method, change the flow direction of core level check-valves place fluids within pipes, make core
Level check-valves quick closedown in the presence of the retrograde fluid in pipeline, so as to the adverse current for verifying identified core level check-valves is closed
Ability, and then the apparatus and method for providing qualification test for kernel level check-valves manufacturing firm of state, so that promote He Ji equipment state
The process of productization, and the testing standard for formulating nuclear grade valve functional verification test for country provides technical support and foundation.
Description of the drawings
Fig. 1 is the structural representation of a seed nucleus level check-valves dynamic countercurrent experimental rig of the present invention；
Fig. 2 is the test method flow chart for carrying out the test of core level check-valves dynamic countercurrent using the experimental rig of the present invention；
After Fig. 3 is the core level check-valves dynamic countercurrent experimental rig on-test of the present invention, pipeline internal medium flow direction is illustrated
Figure；
Fig. 4 is pipeline internal medium flow direction after the core level check-valves dynamic countercurrent experimental rig counter-current process of the present invention starts
Schematic diagram.
Specific embodiment
For ease of further understanding the technology contents of the present invention, the invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, the structural representation of the seed nucleus level check-valves dynamic countercurrent experimental rig for the present invention, the device
Including circulating pump 1, first flowmeter 2, second flowmeter 3, the 3rd flowmeter 4, the first motor-driven valve 5, the second motor-driven valve the 6, the 3rd
Motor-driven valve 7, the 4th motor-driven valve 8, the 5th motor-driven valve 9 and the 6th motor-driven valve 10, it is tested check level check-valves 11, first flange 12,
Second flange 13, the first pipeline 14, second pipe 15, the 3rd pipeline 16, the 4th pipeline 17, the 5th pipeline 18 and the 6th pipeline
19。
The first flowmeter 2, the second motor-driven valve 6 and the 3rd motor-driven valve 7 are arranged on first pipeline 14, and described
Two flowmeters 3 and the first motor-driven valve 5 are arranged on the 3rd pipeline 16, and the 4th motor-driven valve 8 is arranged on the second pipe
On road 15, the 5th motor-driven valve 9 is arranged on the 4th pipeline 17, and the 3rd flowmeter 4 and the 6th motor-driven valve 10 set
Put on the 5th pipeline 18, the tested check level check-valves 11 is arranged on the 6th pipeline 19.
One end of first pipeline 14 is connected with the delivery port of the circulating pump 1, the other end of first pipeline 14
It is connected with one end of the 6th pipeline 19 by first flange 12, one end of the second pipe 15 and the circulating pump 1
Water inlet connects, the other end company of the other end of the second pipe 15 by the second flange 13 and the 6th pipeline 19
Connect, the 3rd pipeline 16, the 4th pipeline 17 and the 5th pipeline 18 are arranged in parallel in first pipeline 14 and second pipe 15
Between.Wherein, one end of the 4th pipeline 17 is arranged between the second flange 13 and the 4th motor-driven valve 8, and the described 5th
One end of pipeline 18 is arranged between the first flange 12 and the 3rd motor-driven valve 7.
As shown in Fig. 2 being the test method flow process for carrying out the test of core level check-valves dynamic countercurrent using above-mentioned experimental rig
Figure, the test method are comprised the following steps：
Step S1, sets up core level check-valves dynamic countercurrent experimental rig.
Step S2, before starting the experimental rig, closes the 5th motor-driven valve 9 and the 6th motor-driven valve 10, opens institute
State the first motor-driven valve 5, the second motor-driven valve 6, the 3rd motor-driven valve 7 and the 4th motor-driven valve 8.
Step S3, starts the experimental rig, the experimental rig is carried out rising gentle boosting, by the experimental rig
Temperature and pressure is lifted and maintains duty parameter to be tested.
The experimental rig and test method are used for the Functional Validation Test of the core level check-valves used by nuclear power plant, due to core level
Valve is divided into 1 grade of valve of core, 3 grades of valves of 2 grades of valves of core and core, and the position that various valve is applied in nuclear power plant is different, because
This is also different to the operating condition of test that core level check-valves carries out qualification test, so duty parameter need to be according to concrete valve
It is fixed.
Step S4, when the experimental rig maintains duty parameter to be tested, keeps the 3rd motor-driven valve 7 and the
The open amount of four motor-driven valves 8 is identical, and keeps the 5th motor-driven valve 9 and 10 closed mode of the 6th motor-driven valve, adjusts described the
Two motor-driven valves 6, control by the tested flow for checking level check-valves 11, make by the tested check level check-valves 11
Flow reaches desired value.
The experimental rig and test method are used for the Functional Validation Test of the core level check-valves used by nuclear power plant, due to core level
Valve is divided into 1 grade of valve of core, 3 grades of valves of 2 grades of valves of core and core, it is therefore contemplated that value is according to the concrete tested examination for checking level check-valves
Depending on testing requirement.As shown in figure 3, after on-test, in the experimental rig, pipeline internal medium is flowed to from first pipeline 14
6th pipeline 19, then flow to the second pipe 15.
Step S5, when the tested flow for checking level check-valves reaches desired value, keeps second motor-driven valve 6
Aperture is constant, simultaneously closes off the 3rd motor-driven valve 7 and the 4th motor-driven valve 8, synchronously opens the 5th motor-driven valve 9 and the 6th electric
Dynamic valve 10, starts the tested counter-current process for checking level check-valves 11, after the tested check level check-valves 11 is completely closed,
Whole transfer process terminates.
In counter-current process, with the closing of the 3rd motor-driven valve 7 and the 4th motor-driven valve 8, by the tested check level
The flow of check-valves 11 can be less and less, after the 3rd motor-driven valve 7 and the 4th motor-driven valve 8 are completely closed, by described
The tested flow for checking level check-valves 11 is reduced to zero simultaneously.As shown in figure 4, after counter-current process starts, managing in the experimental rig
In road, medium flows to the 6th pipeline 19 from the 4th pipeline 17, then flows to the 5th pipeline 18.
The core level check-valves dynamic countercurrent experimental rig provided by the present invention and test method, it is possible to realize identified
Core level check-valves under qualification test duty parameter initially sets up the positive flow by core level check-valves and makes core level check-valves
In opening, then using conversion method, change the flow direction of core level check-valves place fluids within pipes, stop core level
Valve quick closedown in the presence of the retrograde fluid in pipeline is returned, so as to the adverse current for verifying identified core level check-valves closes energy
Power, and then the apparatus and method for providing qualification test for kernel level check-valves manufacturing firm of state, so as to promote core level equipment domestic
The process of change, and the testing standard for formulating nuclear grade valve functional verification test for country provides technical support and foundation.
Presently preferred embodiments of the present invention is the foregoing is only, is merely illustrative for the purpose of the present invention, and it is non-limiting
's.Those skilled in the art understanding, can carry out many changes to which in the spirit and scope limited by the claims in the present invention,
Modification, in addition it is equivalent, but fall within protection scope of the present invention.
Claims (1)
1. a seed nucleus level check-valves dynamic countercurrent experimental rig, it is characterised in that the device include circulating pump, first flowmeter,
Second flowmeter, the 3rd flowmeter, the first motor-driven valve, the second motor-driven valve, the 3rd motor-driven valve, the 4th motor-driven valve, the 5th motor-driven valve,
6th motor-driven valve, tested check level check-valves, first flange, second flange, the first pipeline, second pipe, the 3rd pipeline, the 4th
Pipeline, the 5th pipeline and the 6th pipeline；
The first flowmeter, the second motor-driven valve and the 3rd motor-driven valve are arranged on first pipeline, the second flowmeter
It is arranged on the 3rd pipeline with the first motor-driven valve, the 4th motor-driven valve is arranged on the second pipe, the described 5th
Motor-driven valve is arranged on the 4th pipeline, and the 3rd flowmeter and the 6th motor-driven valve are arranged on the 5th pipeline, institute
State tested check level check-valves to be arranged on the 6th pipeline；
One end of first pipeline is connected with the delivery port of the circulating pump, and the other end of first pipeline is by described the
One flange is connected with one end of the 6th pipeline, and one end of the second pipe is connected with the water inlet of the circulating pump, institute
The other end for stating second pipe is connected with the other end of the 6th pipeline by the second flange, the 3rd pipeline,
Four pipelines and the 5th pipeline are arranged in parallel between first pipeline and second pipe, and one end of the 4th pipeline is arranged on
Between the second flange and the 4th motor-driven valve, one end of the 5th pipeline is arranged on the first flange and the 3rd motor-driven valve
Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410648529.4A CN104359695B (en) | 2014-11-14 | 2014-11-14 | Nuclear-grade check valve dynamic reverse flow test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410648529.4A CN104359695B (en) | 2014-11-14 | 2014-11-14 | Nuclear-grade check valve dynamic reverse flow test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104359695A CN104359695A (en) | 2015-02-18 |
| CN104359695B true CN104359695B (en) | 2017-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410648529.4A Active CN104359695B (en) | 2014-11-14 | 2014-11-14 | Nuclear-grade check valve dynamic reverse flow test device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087093A (en) * | 2017-12-31 | 2018-05-29 | 沪东重机有限公司 | The cooling water off-line equipment of nuclear power diesel emergency generating set |
| CN109029943B (en) * | 2018-06-21 | 2020-06-16 | 中广核研究院有限公司 | Two-loop check valve test device |
| CN109029942B (en) * | 2018-06-21 | 2020-08-14 | 中广核研究院有限公司 | Single loop check valve test device |
| CN110375984A (en) * | 2019-08-02 | 2019-10-25 | 合肥通用机械研究院有限公司 | A kind of complete series balanced valve test macro and test method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5713240A (en) * | 1996-06-26 | 1998-02-03 | Ames Company, Inc. | Method and apparatus for automatic remote testing of backflow preventers |
| CN201449325U (en) * | 2009-06-19 | 2010-05-05 | 江苏神通阀门股份有限公司 | Life test device for back valve |
| CN203490062U (en) * | 2013-07-12 | 2014-03-19 | 上海市通用机械技术研究所有限公司 | Automatic reflux valve detecting system |
| CN204202897U (en) * | 2014-11-14 | 2015-03-11 | 中国原子能科学研究院 | A kind of core level non-return valve dynamic countercurrent test unit |
-
2014
- 2014-11-14 CN CN201410648529.4A patent/CN104359695B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5713240A (en) * | 1996-06-26 | 1998-02-03 | Ames Company, Inc. | Method and apparatus for automatic remote testing of backflow preventers |
| CN201449325U (en) * | 2009-06-19 | 2010-05-05 | 江苏神通阀门股份有限公司 | Life test device for back valve |
| CN203490062U (en) * | 2013-07-12 | 2014-03-19 | 上海市通用机械技术研究所有限公司 | Automatic reflux valve detecting system |
| CN204202897U (en) * | 2014-11-14 | 2015-03-11 | 中国原子能科学研究院 | A kind of core level non-return valve dynamic countercurrent test unit |
Non-Patent Citations (1)
| Title |
|---|
| 止回阀动态特性研究;李永德;《流体机械》;19940830;第22卷(第08期);第7-8页 * |
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| CN104359695A (en) | 2015-02-18 |
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