CN205175668U - Nuclear level check valve reversed flow evaluation test device - Google Patents
Nuclear level check valve reversed flow evaluation test device Download PDFInfo
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- CN205175668U CN205175668U CN201520890259.8U CN201520890259U CN205175668U CN 205175668 U CN205175668 U CN 205175668U CN 201520890259 U CN201520890259 U CN 201520890259U CN 205175668 U CN205175668 U CN 205175668U
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- core level
- return valve
- level non
- valve
- check valve
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Abstract
The utility model discloses a nuclear level check valve reversed flow evaluation test device, it includes that it examines a level check valve to install being appraised on the developmental tube line for one, measure by the flowmeter of appraisal nuclear level check valve flow for one, locate by the quck -opening valve at the appraisal nuclear level check valve upper reaches for the main circulating pump that is provided the forward flow by appraisal nuclear level check valve and one for one, the on -position of quck -opening valve is located by between appraisal nuclear level check valve and the main circulating pump export, can simulate pipeline fracture operating mode when opening. Compared with the prior art, the utility model discloses nuclear level check valve reversed flow evaluation test device keeps being appraised through the forward flow that main circulating pump provided that nuclear level check valve is in the state of opening when experimental to through closing main circulating pump and opening the system state of the high speed of closing of quck -opening valve simulation check valve, consequently can verify and satisfied corresponding standard of perfection requirement by the adverse current ability of closing of appraisal nuclear level check valve and the water hammer at the upper reaches.
Description
Technical field
The utility model belongs to core level equipment qualification field, and more particularly, the utility model relates to a kind of core level non-return valve reversed flow design test device.
Background technology
In U.S. ASMEQME-1 standard and Chinese NB/T20036.6 standard, to the requirement of core level non-return valve reversed flow design test be: by setting up full forward flow or valve wide open opens state, start reversed flow design test, can behavior and up/down trip pressure, checking valve disc that observe valve close by functional specification requirement.Although these standards give the requirement of core level non-return valve reversed flow design test, do not provide concrete test unit or method.
Current published core level non-return valve reversed flow design test device is the multiple branch circuit pipe network utilizing water pump, pipeline and multiple stage valve to form mostly.During test, first the forward flow by core level non-return valve is set up, and make core level non-return valve be in opening, the mode of switch valve is then adopted to change the flow direction of core level non-return valve place fluids within pipes, close under making the effect of core level non-return valve retrograde fluid in pipeline, realize the object of test valve performance.
But, at least there is following defect in above-mentioned test unit and relevant test method: 1) a few deck valve doors of testing requirements execution handoff functionality have the ability of Simultaneous Switching, this is unpractical concerning existing industrial control technology means, once cannot synchronism switching be realized, flow in piping will be had a significant impact, cause test findings inaccurate; 2) in above-mentioned test method, the operation of switch valve only can the flow direction of switch fluids, that is, the reversed flow flow set up also is provided by water pump, therefore cannot set up non-return valve upstream line to break operating mode at all, also just cannot test out the highest closing velocity when this operating mode causes non-return valve quick closedown.
In view of this, necessaryly a kind ofly the core level non-return valve reversed flow design test that can solve the problem device is provided.
Utility model content
The purpose of this utility model is: provide a kind of core level non-return valve reversed flow design test device that can meet testing standard and require, to identify the corresponding performance of core level non-return valve exactly.
In order to realize above-mentioned utility model object, the utility model provides a kind of core level non-return valve reversed flow design test device, it comprise one be arranged on identified core level non-return valve on test pipeline, flowmeter measuring identified core level non-return valve flow, one provide the main circulation pump of forward flow and one to be located at the quick-opening valve of identified core level non-return valve upstream for identified core level non-return valve, pipeline break operating mode, between identified core level non-return valve and main circulation pump outlet, can be simulated during unlatching in the on-position of quick-opening valve.
One as the utility model core level non-return valve reversed flow design test device is improved, described major cycle delivery side of pump and entrance are connected to the test pipeline of identified core level non-return valve upstream and downstream respectively, thus form a loop being identified core level non-return valve and setting up forward flow with identified core level non-return valve, developmental tube line.
One as the utility model core level non-return valve reversed flow design test device is improved, and described main circulation pump is respectively equipped with an ebullator isolation valve on the test pipeline at its gateway place.
One as the utility model core level non-return valve reversed flow design test device is improved, and also comprise a voltage stabilizer, voltage stabilizer accesses the test pipeline between identified core level non-return valve and main circulation pump entrance.
One as the utility model core level non-return valve reversed flow design test device is improved, described main circulation pump is provided with a pump entry isolation valve on the test pipeline of its porch, and voltage stabilizer accesses the test pipeline between identified core level non-return valve and pump entry isolation valve.
One as the utility model core level non-return valve reversed flow design test device is improved, and described flowmeter is arranged on the test pipeline of identified core level check valve downstream, the test pipeline between voltage stabilizer incoming stream gauge and pump entry isolation valve.
One as the utility model core level non-return valve reversed flow design test device is improved, and one section of water discharge line drawn by the test pipeline between described identified core level non-return valve and main circulation pump export, and quick-opening valve is located on water discharge line.
One as the utility model core level non-return valve reversed flow design test device is improved, described main circulation pump is provided with a circulating-pump outlet isolation valve on the test pipeline in its exit, and water discharge line accesses the test pipeline between identified core level non-return valve and circulating-pump outlet isolation valve.
Compared with prior art, the utility model core level non-return valve reversed flow design test device keeps identified core level non-return valve to be in opening at the trial by the forward flow that main circulation pump provides, and by closing main circulation pump and opening the system state that the highest closing velocity of non-return valve simulated by quick-opening valve, therefore, it is possible to verify that the adverse current of identified core level non-return valve closes the water hammer effect of ability and upstream, meet corresponding standard of perfection requirement.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model core level non-return valve reversed flow design test device and beneficial effect thereof are described in detail.
Fig. 1 is the structural representation of the utility model core level non-return valve reversed flow design test device.
Embodiment
In order to make the purpose of this utility model, technical scheme and Advantageous Effects thereof more clear, below in conjunction with the drawings and specific embodiments, the utility model is further elaborated.Should be understood that, the embodiment described in this instructions is only used to explain the utility model, is not intended to limit the utility model.
Refer to Fig. 1, the utility model core level non-return valve reversed flow design test device comprises an identified core level non-return valve 10, main circulation pump 12, two ebullator isolation valves 14,15, flowmeter 16, voltage stabilizer 18, quick-opening valve 20 and relevant associated line.
Identified core level non-return valve 10 is arranged on test pipeline 30.The outlet of main circulation pump 12 and entrance are connected to the test pipeline 30 of identified core level non-return valve 10 upstream and downstream respectively, thus with identified core level non-return valve 10, test pipeline 30 and form a loop, namely start main circulation pump 12 is that forward flow set up by identified core level non-return valve 10 by this loop.Two ebullator isolation valves 14,15 are respectively pump entry isolation valve 14 and circulating-pump outlet isolation valve 15, the two is separately positioned on the test pipeline 30 of main circulation pump 12 outlet and porch, for cutting off the forward flow that main circulation pump 12 provides for identified core level non-return valve 10 at any time.
Flowmeter 16 is arranged on the test pipeline 30 in identified core level non-return valve 10 downstream, for measuring the flow flowing through identified core level non-return valve 10 in real time.Test pipeline 30 between voltage stabilizer 18 incoming stream gauge 16 and pump entry isolation valve 14.One section of water discharge line 22 drawn by test pipeline 30 between identified core level non-return valve 10 and circulating-pump outlet isolation valve 15, and quick-opening valve 20 is located on water discharge line 22.
The method of use the utility model core level non-return valve reversed flow design test device is:
1) starting characteristics test device, opens main circulation pump 12 and sets up forward flow for identified core level non-return valve 10; Carry out heating up and boosting, by voltage stabilizer 18 temperature and pressure of test unit promoted and maintain the operating condition of test parameter that identified core level non-return valve 10 requires, making identified core level non-return valve 10 be in opening; Understandable, concrete operating condition of test parameter needs to determine according to the operating mode of subjects in actual motion, and therefore each operating condition of test parameter is not identical, need determine according to concrete valve;
2) control the forward flow by identified core level non-return valve 10, make forward flow reach setting value;
3) close main circulation pump 12 and ebullator isolation valve 14,15 and open quick-opening valve 20, simulating the system state of the highest closing velocity of identified core level non-return valve 10, until identified core level non-return valve 10 cuts out completely, off-test.
Known by describing above, the utility model core level non-return valve reversed flow design test device can under design test duty parameter, first set up the forward flow by identified core level non-return valve 10 and ensure that valve is in opening, then simulate the harshest upstream line double of valve, change the flow direction of identified core level non-return valve 10 place test pipe 30 inner fluid, make the quick closedown under the effect of test pipe 30 inner fluid of identified core level non-return valve 10, thus verify that the adverse current of identified core level non-return valve 10 closes the water hammer effect of ability and upstream, meet corresponding standard of perfection requirement.
Compared with prior art, the utility model core level non-return valve reversed flow design test device at least has the following advantages: 1) achieve setting up forward flow and ensureing that valve wide open opens state of standard of perfection requirement, identified core level non-return valve 10 can cut out under the highest closing velocity by quick-opening valve 20, and by controlling voltage stabilizer 18 pressure, realizing identified core level non-return valve 10 and closing under different closing velocity; 2) do not require that a few deck valve door has the ability of Simultaneous Switching during test, be easy to realize.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also carry out suitable change and amendment to above-mentioned embodiment.Therefore, the utility model is not limited to embodiment disclosed and described above, also should fall in the protection domain of claim of the present utility model modifications and changes more of the present utility model.In addition, although employ some specific terms in this instructions, these terms just for convenience of description, do not form any restriction to the utility model.
Claims (8)
1. a core level non-return valve reversed flow design test device, comprise one be arranged on identified core level non-return valve on test pipeline, one measure the flowmeter of identified core level non-return valve flow and one for identified core level non-return valve and the main circulation pump of forward flow be provided; It is characterized in that: also comprise the quick-opening valve that is located at identified core level non-return valve upstream, pipeline break operating mode, between identified core level non-return valve and main circulation pump outlet, can be simulated during unlatching in the on-position of quick-opening valve.
2. core level non-return valve reversed flow design test device according to claim 1, it is characterized in that: described major cycle delivery side of pump and entrance are connected to the test pipeline of identified core level non-return valve upstream and downstream respectively, thus form a loop being identified core level non-return valve and setting up forward flow with identified core level non-return valve, developmental tube line.
3. core level non-return valve reversed flow design test device according to claim 1, is characterized in that: described main circulation pump is respectively equipped with an ebullator isolation valve on the test pipeline at its gateway place.
4. core level non-return valve reversed flow design test device according to claim 1, it is characterized in that: also comprise a voltage stabilizer, voltage stabilizer accesses the test pipeline between identified core level non-return valve and main circulation pump entrance.
5. core level non-return valve reversed flow design test device according to claim 4, it is characterized in that: described main circulation pump is provided with a pump entry isolation valve on the test pipeline of its porch, voltage stabilizer accesses the test pipeline between identified core level non-return valve and pump entry isolation valve.
6. core level non-return valve reversed flow design test device according to claim 5, it is characterized in that: described flowmeter is arranged on the test pipeline of identified core level check valve downstream, the test pipeline between voltage stabilizer incoming stream gauge and pump entry isolation valve.
7. core level non-return valve reversed flow design test device according to claim 1, is characterized in that: one section of water discharge line drawn by the test pipeline exported between described identified core level non-return valve and main circulation pump, and quick-opening valve is located on water discharge line.
8. core level non-return valve reversed flow design test device according to claim 7, it is characterized in that: described main circulation pump is provided with a circulating-pump outlet isolation valve on the test pipeline in its exit, water discharge line accesses the test pipeline between identified core level non-return valve and circulating-pump outlet isolation valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520890259.8U CN205175668U (en) | 2015-11-10 | 2015-11-10 | Nuclear level check valve reversed flow evaluation test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520890259.8U CN205175668U (en) | 2015-11-10 | 2015-11-10 | Nuclear level check valve reversed flow evaluation test device |
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| CN205175668U true CN205175668U (en) | 2016-04-20 |
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| CN201520890259.8U Active CN205175668U (en) | 2015-11-10 | 2015-11-10 | Nuclear level check valve reversed flow evaluation test device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918103A (en) * | 2018-04-18 | 2018-11-30 | 合肥通用机械研究院有限公司 | A kind of waterpower control Dynamic Characteristics of Non-Return Valve test macro and test method |
| 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 |
| CN109633206A (en) * | 2017-10-09 | 2019-04-16 | 中核兰州铀浓缩有限公司 | The simulated testing system and method for uranic hexafluoride gas flow direction protection sensor |
| CN113932890A (en) * | 2020-07-14 | 2022-01-14 | 山东天工石油装备有限公司 | Analysis method capable of detecting accuracy of liquid production of check valve |
-
2015
- 2015-11-10 CN CN201520890259.8U patent/CN205175668U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109633206A (en) * | 2017-10-09 | 2019-04-16 | 中核兰州铀浓缩有限公司 | The simulated testing system and method for uranic hexafluoride gas flow direction protection sensor |
| CN109633206B (en) * | 2017-10-09 | 2021-03-02 | 中核兰州铀浓缩有限公司 | Simulation test system and method for uranium hexafluoride gas flow direction protection sensor |
| CN108918103A (en) * | 2018-04-18 | 2018-11-30 | 合肥通用机械研究院有限公司 | A kind of waterpower control Dynamic Characteristics of Non-Return Valve test macro and test method |
| 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 |
| CN113932890A (en) * | 2020-07-14 | 2022-01-14 | 山东天工石油装备有限公司 | Analysis method capable of detecting accuracy of liquid production of check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181226 Address after: 518124 Office Building of Daya Bay Nuclear Power Base Engineering Company, Pengfei Road, Dapeng New District, Shenzhen City, Guangdong Province Co-patentee after: Shenzhen China Nuclear Power Design Co., Ltd. Patentee after: China Nuclear Power Engineering Co., Ltd. Co-patentee after: China General Nuclear Power Corporation Address before: 518023 No. 69 Shennan Middle Road, Futian District, Shenzhen City, Guangdong Province Co-patentee before: China General Nuclear Power Corporation Patentee before: China Nuclear Power Engineering Co., Ltd. |
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| TR01 | Transfer of patent right |