CN206420626U - A kind of swing check valve suppresses system - Google Patents
A kind of swing check valve suppresses system Download PDFInfo
- Publication number
- CN206420626U CN206420626U CN201621490073.4U CN201621490073U CN206420626U CN 206420626 U CN206420626 U CN 206420626U CN 201621490073 U CN201621490073 U CN 201621490073U CN 206420626 U CN206420626 U CN 206420626U
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- check valve
- test
- bonnet
- experiment
- valve
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Abstract
The utility model is related to nuclear power plant's swing check valve sealing property test and Condition-Based Maintenance Technology field, specifically discloses a kind of swing check valve and suppresses system.A kind of swing check valve suppresses system, and the system includes experiment bonnet, sealing blocking, bulge test platform, data acquisition computer, wherein, sealing, which is blocked, is arranged on valve pocket downstream in check valve body to be tested；Provided with experiment bonnet at the top of the check valve body, bulge test platform is connected with experiment bonnet, and test(ing) medium and test pressure are provided for check-valves；The data acquisition computer is connected with bulge test platform, for being controlled and gathered data to suppressing testing stand.The pressure change in the test(ing) medium pressure and regulation test period of test check valve valve pocket, and the leakage value of the real-time direct measurement valve pocket of energy can be measured in real time, to examine the sealing property of check-valves, it is ensured that the quality of maintenance of valve.
Description
Technical field
The utility model belongs to nuclear power plant's swing check valve sealing property test and Condition-Based Maintenance Technology field, specifically relates to
And a kind of swing check valve suppresses system.
Background technology
Check-valves, refers to flow in itself by medium and automatic open and close flap, for preventing the valve of medium refluence.Only
Return valve and belong to a kind of automatic valve, its main function is to prevent medium from flowing backwards, prevent pump and drive motor from inverting, and container
Medium is released.Check-valves is widely used nuclear power station, heavy as these mostly in the high system of Nuclear safety class
The border isolating valve of system is wanted, during reactor operation or during cold shutdown, the failure of any one check-valves will be to power station
Safety produce significant impact.
Eliminate check-valves leakage be nuclear power station operation and maintenance work in pay close attention to item, by technical conditions limit with
Consider the higher factor of work on the spot risk, current most domestic nuclear power station substantially all using valve during overhaul disintegrate grinding+
The traditional maintenance mode of blue oil test, the quality of repair quality is largely dependent upon the height of the level of skill of maintenance personal
It is low, and whether valve after repairing is qualified system sealing bulge test can only be carried out during reactor increasing temperature and pressure and can just test
Card, once experiment is unqualified, set state will have to recession, has a strong impact on cold examination and heat examination is smoothed out.
A few domestic nuclear power plant, early stage once developed the device detected for check valve sealing, but due to non-return
Jam pot cover block apparatus reliability is poor, and plugging device is easily shifted when suppressing, and plugging part is easily extruded, have washed away by pressure and
Risk into pressure vessel or other equipment system；Pressure device and pressure, which decline, simultaneously shows (slip detection) link
Suppressed using more original manual pressuring pump and the mode such as pointer gauge is shown, instrument is suppressed and the skill such as display unit and mode of operation
Art falls behind relatively, and inconvenient during installation fee, using less after developing, discards substantially at present.
The content of the invention
The purpose of this utility model is that providing a kind of swing check valve suppresses system, its can quickly, it is accurate, can
Lean on, bulge test automatically carried out to the swing check valve of nuclear power station, quantitatively detect in the stipulated time pressure drop of check-valves and
Slip, examines the sealing property of check-valves, to ensure the quality of maintenance of valve.
The technical solution of the utility model is as follows：A kind of swing check valve suppresses system, the system include experiment bonnet,
Blocking, bulge test platform, data acquisition computer are sealed, wherein, sealing, which is blocked, to be arranged in check valve body to be tested under valve pocket
Swim side；Provided with experiment bonnet at the top of the check valve body, bulge test platform is connected with experiment bonnet, provided for check-valves
Test(ing) medium and test pressure；The data acquisition computer is connected with bulge test platform, for being controlled to suppressing testing stand
Make and gathered data.
Described pet valve is covered provided with snap joint；The bulge test platform blocks forcing hose and non-return by sealing
Valve valve pocket forcing hose is connected with the snap joint that pet valve is covered, and the snap joint other end passes through corresponding flexible pipe and sealing
Blocking is connected with check-valves valve pocket.
The system is additionally provided with recycling bin, sealing block and valve pocket the snap joint that is covered by pet valve of exhaust hose and
External exhaust gas flexible pipe is connected with recycling bin.
Remarkable result of the present utility model is：A kind of swing check valve described in the utility model suppresses system, energy
Pressure change (reflection valve leaks in the test(ing) medium pressure and regulation test period of enough test check valve valve pockets of measurement in real time
Pressure drop), and can direct measurement valve pocket in real time leakage value, to examine the sealing property of check-valves, it is ensured that the matter of maintenance of valve
Amount.Test data can realize real-time data acquisition, data display, data storage, data query and review, the inputs of data it is defeated
Go out, automatically generate report and printing function.
Brief description of the drawings
Fig. 1 is that a kind of swing check valve described in the utility model suppresses system connection diagram；
In figure：1st, check valve body；2nd, valve seat；3rd, flap；4th, bonnet is tested；5th, sealing is blocked；6th, bulge test platform；7、
Data acquisition computer；8th, recycling bin.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described in further detail to the utility model.
As shown in figure 1, a kind of swing check valve suppresses system, including experiment bonnet 4, sealing block 5, bulge test platform
6th, data acquisition computer 7 and recycling bin 8, wherein, seal plug is installed in the valve pocket downstream of check valve body 1 to be tested
Plug 5, valve seat 2 and flap 3 are closed to valve pocket upstream；The top of check valve body 1 is provided with experiment bonnet 4, bulge test platform 6
It is connected by sealing blocking forcing hose and check-valves valve pocket forcing hose with the snap joint on experiment bonnet 4, for experiment
Check-valves provide the snap joint other end on test(ing) medium and stability test pressure, experiment bonnet 4 by corresponding flexible pipe with
Sealing blocks 5 and is connected with check-valves valve pocket；Data acquisition computer 7 is connected with bulge test platform 6, for suppressing testing stand
6 are controlled and gathered data；The exhaust hose of sealing blocking 5 and valve pocket is by testing snap joint and outside on bonnet 4
Exhaust hose is connected with recycling bin 8.
Bulge test platform be powered after, can by the hand-operated valve on operating operation test platform and shift knob come Control experiment platform to
Sealing is blocked and experiment valve water-filling, exhaust, pressurization and pressure release, can also be automatically controlled by data acquisition computer, testing stand
Stable, lasting test pressure can be provided to experiment valve and test system.System can in real time measure, show institute's testing experiment
The temperature and test curve of medium, can in real time measure, show in the pressure for testing valve pocket test(ing) medium and regulation test period
Pressure change and its test curve, system can measure and show in real time the leakage value of valve pocket, and can provide whether slip closes
The conclusion of lattice.
When carrying out check-valves bulge test, data acquisition computer 7 or bulge test platform send sealing to system first and blocked
Water filling is instructed, and starts the electric frequency conversion pump suppressed inside platform, and the water suppressed in the subsidiary water tank of platform is injected into sealing blocking, and
Air in sealing-plug is discharged in recycling bin 8 by flexible pipe, sealing blocks the expansion that is pressurized, and check valve downstream side seal is blocked.
After retaining pressure arrival setting pressure (P1) is sealed, suppress platform cut-out sealing and block pressurizing loop, noted while being switched to valve pocket
Water in water tank is injected into valve pocket by water pressurizing loop, electric frequency conversion pump, and the air in valve pocket is discharged to back by flexible pipe
Receive in bucket 8.Valve pocket pressure continues to raise, and when reaching after test pressure (P2, P1 ＞ P2), electrodynamic pump is automatically stopped, and will pressurization
Loop cut-out enters sealing packing stage.Delay a period of time carries out pressure drop judgement again after test system detection pressurize, it is to avoid just
Termination of pumping pressure oscillation is big to be judged pressure drop to impact.After voltage drop detection is finished, system automatically unloading simultaneously stops experiment.
Claims (3)
1. a kind of swing check valve suppresses system, it is characterised in that：The system include experiment bonnet (4), sealing block (5),
Bulge test platform (6), data acquisition computer (7), wherein, sealing blocks (5) and is arranged on valve pocket in check valve body to be tested (1)
Downstream；Provided with experiment bonnet (4) at the top of the check valve body (1), bulge test platform (6) is connected with experiment bonnet (4)
Connect, be that check valve body (1) provides test(ing) medium and test pressure；The data acquisition computer (7) and bulge test platform (6) phase
Connection, for being controlled and gathered data to suppressing testing stand (6).
2. a kind of swing check valve according to claim 1 suppresses system, it is characterised in that：Described experiment bonnet
(4) it is provided with snap joint；The bulge test platform (6) by seal block forcing hose and check-valves valve pocket forcing hose with
Snap joint on experiment bonnet (4) is connected, and the snap joint other end blocks (5) and non-return by corresponding flexible pipe with sealing
Valve valve pocket is connected.
3. a kind of swing check valve according to claim 1 suppresses system, it is characterised in that：The system is additionally provided with recovery
Bucket (8), sealing block the exhaust hose of (5) and valve pocket by test snap joint on bonnet (4) and external exhaust gas flexible pipe and
Recycling bin (8) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621490073.4U CN206420626U (en) | 2016-12-30 | 2016-12-30 | A kind of swing check valve suppresses system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621490073.4U CN206420626U (en) | 2016-12-30 | 2016-12-30 | A kind of swing check valve suppresses system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206420626U true CN206420626U (en) | 2017-08-18 |
Family
ID=59573518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621490073.4U Active CN206420626U (en) | 2016-12-30 | 2016-12-30 | A kind of swing check valve suppresses system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206420626U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443663A (en) * | 2018-12-21 | 2019-03-08 | 核动力运行研究所 | A kind of gate valve suppresses system online |
| CN109443663B (en) * | 2018-12-21 | 2024-05-10 | 核动力运行研究所 | Gate valve online pressing system |
-
2016
- 2016-12-30 CN CN201621490073.4U patent/CN206420626U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443663A (en) * | 2018-12-21 | 2019-03-08 | 核动力运行研究所 | A kind of gate valve suppresses system online |
| CN109443663B (en) * | 2018-12-21 | 2024-05-10 | 核动力运行研究所 | Gate valve online pressing system |
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