CN104359695A - 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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- CN104359695A CN104359695A CN201410648529.4A CN201410648529A CN104359695A CN 104359695 A CN104359695 A CN 104359695A CN 201410648529 A CN201410648529 A CN 201410648529A CN 104359695 A CN104359695 A CN 104359695A
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- pipeline
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- nuclear
- check valve
- motorized valve
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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 design test, be specifically related to a kind of core level non-return valve dynamic countercurrent test unit.
Background technology
In U.S. ASME QME-1-2002 standard, corresponding description is required to the counter current experiment in core level return valve function design test, namely need in counter current experiment to set up the proof procedure being also converted to reverse flow by the forward flow of core level non-return valve instantaneously, but do not point out specific implementation method.Also the open report of this transient state adverse current constructive process specific implementation method is had no both at home and abroad.
In view of above-mentioned defect, creator of the present invention, through research and test for a long time, finally obtains the present invention.
Summary of the invention
The object of the present invention is to provide a kind of core level non-return valve dynamic countercurrent test unit, in order to overcome above-mentioned technological deficiency.
For achieving the above object, the technical solution used in the present invention is: provide a kind of core level non-return valve dynamic countercurrent test unit, this device comprises ebullator, first-class gauge, second gauge, the 3rd flowmeter, the first motorized valve, the second motorized valve, the 3rd motorized valve, the 4th motorized valve, the 5th motorized valve, the 6th motorized valve, tested check level non-return valve, the first flange, the second flange, the first pipeline, second pipe, the 3rd pipeline, the 4th pipeline, the 5th pipeline and the 6th pipeline;
Described first-class gauge, the second motorized valve and the 3rd motorized valve are arranged on described first pipeline, described second gauge and the first motorized valve are arranged on described 3rd pipeline, described 4th motorized valve is arranged on described second pipe, described 5th motorized valve is arranged on described 4th pipeline, described 3rd flowmeter and the 6th motorized valve are arranged on described 5th pipeline, and described tested check level non-return valve is arranged on described 6th pipeline;
One end of described first pipeline is connected with the water delivering orifice of described ebullator, the other end of described first pipeline is connected with one end of described 6th pipeline by described first flange, one end of described second pipe is connected with the water inlet of described ebullator, the other end of described second pipe is connected with the other end of described 6th pipeline by described second flange, described 3rd pipeline, 4th pipeline and the 5th pipeline are arranged in parallel between described first pipeline and second pipe, one end of described 4th pipeline is arranged between described second flange and the 4th motorized valve, one end of described 5th pipeline is arranged between described first flange and the 3rd motorized valve.
Beneficial effect of the present invention is: by above-mentioned core level non-return valve dynamic countercurrent test unit, just can realize identified core level non-return valve under design test duty parameter, first set up the forward flow by core level non-return valve and make core level non-return valve be in opening, then adopt conversion method, change the flow direction of core level non-return valve place fluids within pipes, make quick closedown under the effect of the retrograde fluid of core level non-return valve in pipeline, thus verify that the adverse current of identified core level non-return valve closes ability, and then provide the apparatus and method of design test for kernel level non-return valve manufacturing firm of state, thus promote the process of core level home-made equipment, and the testing standard formulating nuclear grade valve functional verification test for country provides technical support and foundation.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of core level non-return valve dynamic countercurrent test unit of the present invention;
Fig. 2 is the test method process flow diagram utilizing test unit of the present invention to carry out the test of core level non-return valve dynamic countercurrent;
Fig. 3 is that after core level non-return valve dynamic countercurrent test unit on-test of the present invention, pipeline internal medium flows to schematic diagram;
Fig. 4 is that after core level non-return valve dynamic countercurrent test unit counter-current process of the present invention starts, pipeline internal medium flows to schematic diagram.
Embodiment
For ease of understanding technology contents of the present invention further, below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, for the structural representation of a kind of core level non-return valve dynamic countercurrent test unit of the present invention, this device comprises ebullator 1, first-class gauge 2, second gauge 3, the 3rd flowmeter 4, first motorized valve 5, second motorized valve 6, the 3rd motorized valve 7, the 4th motorized valve 8, the 5th motorized valve 9 and the 6th motorized valve 10, tested check level non-return valve 11, first flange 12, second flange 13, first pipeline 14, second pipe 15, the 3rd pipeline 16, the 4th pipeline 17, the 5th pipeline 18 and the 6th pipeline 19.
Described first-class gauge 2, second motorized valve 6 and the 3rd motorized valve 7 are arranged on described first pipeline 14, described second gauge 3 and the first motorized valve 5 are arranged on described 3rd pipeline 16, described 4th motorized valve 8 is arranged on described second pipe 15, described 5th motorized valve 9 is arranged on described 4th pipeline 17, described 3rd flowmeter 4 and the 6th motorized valve 10 are arranged on described 5th pipeline 18, and described tested check level non-return valve 11 is arranged on described 6th pipeline 19.
One end of described first pipeline 14 is connected with the water delivering orifice of described ebullator 1, the other end of described first pipeline 14 is connected with one end of described 6th pipeline 19 by the first flange 12, one end of described second pipe 15 is connected with the water inlet of described ebullator 1, the other end of described second pipe 15 is connected with the other end of described 6th pipeline 19 by described second flange 13, and described 3rd pipeline 16, the 4th pipeline 17 and the 5th pipeline 18 are arranged in parallel between described first pipeline 14 and second pipe 15.Wherein, one end of described 4th pipeline 17 is arranged between described second flange 13 and the 4th motorized valve 8, and one end of described 5th pipeline 18 is arranged between described first flange 12 and the 3rd motorized valve 7.
As shown in Figure 2, be the test method process flow diagram utilizing above-mentioned test unit to carry out the test of core level non-return valve dynamic countercurrent, this test method comprises the following steps:
Step S1, sets up core level non-return valve dynamic countercurrent test unit.
Step S2, before starting described test unit, closes described 5th motorized valve 9 and the 6th motorized valve 10, opens described first motorized valve 5, second motorized valve 6, the 3rd motorized valve 7 and the 4th motorized valve 8.
Step S3, starts described test unit, heats up to described test unit and boosts, and is promoted by the temperature and pressure of described test unit and maintains duty parameter to be tested.
This test unit and test method are used for the Functional Validation Test of nuclear power plant's core level non-return valve used, because nuclear grade valve is divided into core 1 grade of valve, core 2 grades of valves and core 3 grades of valves, and the position that various valve is applied in nuclear power plant is different, therefore the operating condition of test of design test is carried out to core level non-return valve also different, so duty parameter need be determined according to concrete valve.
Step S4, when described test unit maintains duty parameter to be tested, keep described 3rd motorized valve 7 identical with the open amount of the 4th motorized valve 8, and keep described 5th motorized valve 9 and the 6th motorized valve 10 closed condition, regulate described second motorized valve 6, control the flow by described tested check level non-return valve 11, make to reach desired value by the flow of described tested check level non-return valve 11.
This test unit and test method are used for the Functional Validation Test of nuclear power plant's core level non-return valve used, and because nuclear grade valve is divided into core 1 grade of valve, core 2 grades of valves and core 3 grades of valves, therefore desired value is determined according to the testing requirements of concrete tested check level non-return valve.As shown in Figure 3, after on-test, in described test unit, pipeline internal medium flows to described 6th pipeline 19 from described first pipeline 14, then flows to described second pipe 15.
Step S5, when the flow of described tested check level non-return valve reaches desired value, keep the aperture of described second motorized valve 6 constant, close described 3rd motorized valve 7 and the 4th motorized valve 8 simultaneously, described 5th motorized valve 9 of synchronous unlatching and the 6th motorized valve 10, start the counter-current process of tested check level non-return valve 11, until after described tested check level non-return valve 11 cuts out completely, whole transfer process terminates.
In counter-current process, along with the closedown of described 3rd motorized valve 7 and the 4th motorized valve 8, can be more and more less by the flow of described tested check level non-return valve 11, until after described 3rd motorized valve 7 and the 4th motorized valve 8 close completely, reduce to zero by the flow of described tested check level non-return valve 11 simultaneously.As shown in Figure 4, after counter-current process starts, in described test unit, pipeline internal medium flows to described 6th pipeline 19 from described 4th pipeline 17, then flows to described 5th pipeline 18.
By core level non-return valve dynamic countercurrent test unit provided by the invention and test method, just can realize identified core level non-return valve under design test duty parameter, first set up the forward flow by core level non-return valve and make core level non-return valve be in opening, then adopt conversion method, change the flow direction of core level non-return valve place fluids within pipes, make quick closedown under the effect of the retrograde fluid of core level non-return valve in pipeline, thus verify that the adverse current of identified core level non-return valve closes ability, and then provide the apparatus and method of design test for kernel level non-return valve manufacturing firm of state, thus promote the process of core level home-made equipment, and the testing standard formulating nuclear grade valve functional verification test for country provides technical support and foundation.
The foregoing is only preferred embodiment of the present invention, is only illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes in the spirit and scope that the claims in the present invention limit to it, amendment, even equivalence, but all will fall within the scope of protection of the present invention.
Claims (1)
1. a core level non-return valve dynamic countercurrent test unit, it is characterized in that, this device comprises ebullator, first-class gauge, second gauge, the 3rd flowmeter, the first motorized valve, the second motorized valve, the 3rd motorized valve, the 4th motorized valve, the 5th motorized valve, the 6th motorized valve, tested check level non-return valve, the first flange, the second flange, the first pipeline, second pipe, the 3rd pipeline, the 4th pipeline, the 5th pipeline and the 6th pipeline;
Described first-class gauge, the second motorized valve and the 3rd motorized valve are arranged on described first pipeline, described second gauge and the first motorized valve are arranged on described 3rd pipeline, described 4th motorized valve is arranged on described second pipe, described 5th motorized valve is arranged on described 4th pipeline, described 3rd flowmeter and the 6th motorized valve are arranged on described 5th pipeline, and described tested check level non-return valve is arranged on described 6th pipeline;
One end of described first pipeline is connected with the water delivering orifice of described ebullator, the other end of described first pipeline is connected with one end of described 6th pipeline by described first flange, one end of described second pipe is connected with the water inlet of described ebullator, the other end of described second pipe is connected with the other end of described 6th pipeline by described second flange, described 3rd pipeline, 4th pipeline and the 5th pipeline are arranged in parallel between described first pipeline and second pipe, one end of described 4th pipeline is arranged between described second flange and the 4th motorized valve, one end of described 5th pipeline is arranged between described first flange and the 3rd motorized valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410648529.4A CN104359695B (en) | 2014-11-14 | 2014-11-14 | Nuclear-grade check valve dynamic reverse flow test device |
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| 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 |
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| CN104359695A true CN104359695A (en) | 2015-02-18 |
| CN104359695B CN104359695B (en) | 2017-03-22 |
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Cited By (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 |
| CN109029943A (en) * | 2018-06-21 | 2018-12-18 | 中广核研究院有限公司 | Two loop non-return valve action test sets |
| CN109029942A (en) * | 2018-06-21 | 2018-12-18 | 中广核研究院有限公司 | Single loop non-return valve action test set |
| 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 |
Family Cites Families (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
Cited By (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 |
| CN109029943A (en) * | 2018-06-21 | 2018-12-18 | 中广核研究院有限公司 | Two loop non-return valve action test sets |
| CN109029942A (en) * | 2018-06-21 | 2018-12-18 | 中广核研究院有限公司 | Single loop non-return valve action test set |
| 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 |
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| Publication number | Publication date |
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| CN104359695B (en) | 2017-03-22 |
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