CN205538123U - Nuclear power station safety dedicated system pump package temperature probe's seal tightness test device - Google Patents
Nuclear power station safety dedicated system pump package temperature probe's seal tightness test device Download PDFInfo
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- CN205538123U CN205538123U CN201620299630.8U CN201620299630U CN205538123U CN 205538123 U CN205538123 U CN 205538123U CN 201620299630 U CN201620299630 U CN 201620299630U CN 205538123 U CN205538123 U CN 205538123U
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- pressure
- bearing cylinder
- pipeline
- test device
- temperature probe
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Abstract
The utility model discloses a nuclear power station safety dedicated system pump package temperature probe's seal tightness test device, including being used for holding the pressure bearing cylinder of temperature probe's detection portion and being used for the block to be in with the location between temperature probe's body and the detection portion the locating pin of detection portion, pressure bearing cylinder is last to be connect and is used for connecting suppressing the pipeline, being used for the pressure release pipeline of pressure release and right of the equipment of suppressing pressure bearing cylinder internal pressure carries out the pressure measurement device that detects. The utility model discloses can install at temperature probe and carry out the leakproofness test to temperature probe before on -the -spot, avoid appearing the probe and leak the oil condition behind the scene of installing, can guarantee such as supplementary water feed pump set, the safe usability of injecting important system pumps such as pump package, chemical volume control pump package into, guarantee nuclear power station operation safety, it is dangerous effectively to avoid delaying simultaneously the overhaul time limit for a project.
Description
Technical field
This utility model relates to the assay device of a kind of nuclear plant safety dedicated system pump group, particularly relates to one
Plant the leak tightness test device of nuclear plant safety dedicated system pump group temperature probe.
Background technology
Identify and during day-to-day operation that temperature repeatedly occurs again in nuclear plant safety dedicated system pump group
Probe leakage oil condition, particularly installation direction probe down, have impact on nuclear plant safety dedicated system
The availability of pump group.
Auxiliary feedwater system (ASG) belongs to one of engineered safeguards features, and its safety effect is to water system main
When any one link of system breaks down, supply water to vaporizer secondary side as emergent means, make one time
Road maintains a low-temperature receiver.Chemistry volume control system (RCV) is at reactor coolant loop generation minor break
In the case of (equivalent diameter D ＜ 9.5mm), change appearance system and be able to maintain that its water loading amount, as reactivity control
System processed, changes appearance system in reactor shutdown or hot secondary at the reactor of such as bullet rod, rod seizure accident
In the maintenance stage under critical state, it all works.Change appearance system to be total to reactor boron and water make-up system
With ensureing this function, in the case of Safety Injection.Change and fill pump in appearance system as high-pressure safety injection pump fortune
During row, the peace note method of operation replaces other methods of operation all automatically.
The temperature probe installed in pump group is for monitoring the running status of pump group, when seal failure, bearing,
Lubricating oil between bearing shell will cause leakage because of seal failure, will affect the properly functioning of pump group time serious.
Currently without for the method for testing of nuclear plant safety dedicated system pump group temperature probe sealing and survey
Trial work has, and can only carry out visual examination before temperature probe is installed, and the spare part being arranged on scene does not seal
Property standard, often occurring that probe is poorly sealed causes leaking oil condition and occurs, and has had a strong impact on nuclear safety phase
Close the availability of pump group.
Utility model content
The technical problems to be solved in the utility model is, it is provided that temperature is visited before the scene of being installed to by one
Head carries out the leak tightness test device of the nuclear plant safety dedicated system pump group temperature probe of performing leak test.
This utility model solves its technical problem and be the technical scheme is that a kind of nuclear plant safety of offer
The leak tightness test device of dedicated system pump group temperature probe, including the probe portion for accommodating temperature probe
Pressure-bearing cylinder and for being fastened between body and the probe portion of described temperature probe to position described spy
The alignment pin in survey portion；Be connected on described pressure-bearing cylinder for connect suppress equipment suppress pipeline, for pressure release
Blowdown line and pressure tester that described pressure-bearing cylinder internal pressure is detected.
Preferably, described pressure-bearing cylinder is the cylinder closed, and which is provided with and is passed into institute for described probe portion
State the import in pressure-bearing cylinder.
Preferably, described import is provided with the female thread coordinated with external screw thread in described probe portion.
Preferably, described pressure-bearing cylinder is additionally provided with pressure entrance and pressure relief vent, described in suppress pipeline and letting out
Pressure pipeline is connected on described pressure entrance and pressure relief vent.
Preferably, suppress pipeline described in and include that be connected on described pressure-bearing cylinder suppresses pipeline and arrange
At the described inlet isolation valve suppressed on pipeline；
Described blowdown line includes the relief pipeline being connected on described pressure-bearing cylinder and lets out described in being arranged on
Pressure release isolating valve on pressure pipeline.
Preferably, described pressure tester includes electronic precision pressure gauge, and it is led to by pressure measurement pipeline and three
Suppress on pipeline described in being connected on, and be positioned at the described inlet isolation valve side near described pressure-bearing cylinder.
Preferably, described pressure measurement pipeline is additionally provided with air pressure and monitors isolating valve.
Preferably, described alignment pin is U-shaped pad.
Preferably, the thickness of described alignment pin is 5mm.
Preferably, this temperature probe leak tightness test device also includes that support, described pressure-bearing tub are located at institute
State on support.
The leak tightness test device of nuclear plant safety dedicated system pump group temperature probe of the present utility model, can
Before temperature probe is installed to scene, temperature probe is carried out performing leak test, it is to avoid behind the scene of being installed to
Probe leakage oil condition occurs, it can be ensured that such as auxiliary feed water pump group, Safety Injection pump group, chemistry hold
The long-pending availability controlling the important system pumps such as pump group, ensures that nuclear power station runs safety, can effectively keep away simultaneously
Exempt to delay overhaul duration danger.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the sealing of the nuclear plant safety dedicated system pump group temperature probe of this utility model one embodiment
The structural representation of property assay device.
Detailed description of the invention
In order to technical characteristic of the present utility model, purpose and effect are more clearly understood from, existing comparison
Accompanying drawing describes detailed description of the invention of the present utility model in detail.
As it is shown in figure 1, the nuclear plant safety dedicated system pump group temperature probe of this utility model one embodiment
Leak tightness test device, before temperature probe is installed to scene, temperature probe can be carried out performing leak test.
This leak tightness test device include with the use of pressure-bearing cylinder 10 and alignment pin 20.Pressure-bearing cylinder 10 is used for holding
Receive the probe portion 2 of temperature probe；Alignment pin 20 is for being fastened on body 1 and the probe portion 2 of temperature probe
Between, coordinate detection portion 2.
Wherein, pressure-bearing cylinder 10 is connected to for connect suppress equipment suppress pipeline 30, letting out for pressure release
Pressure pipeline 40 and the pressure tester 50 that pressure-bearing cylinder 10 internal pressure is detected.Equipment of suppressing leads to
Cross and suppress pipeline 30 and suppress pressure-bearing cylinder 10 is internal, there is in making pressure-bearing cylinder 10 certain test pressure
Power, carries out pressure to detect probe portion 2 sealing to probe portion 2；Pressure tester 50 can be used to examine in real time
Survey the pressure condition within pressure-bearing cylinder 10；After needs reduce pressure-bearing cylinder 10 internal pressure or complete test,
By blowdown line 40, pressure-bearing cylinder 10 is carried out pressure release.
Specifically, pressure-bearing cylinder 10 is the cylinder closed, and the material using steel equal strength high is made, and held
Pressure cylinder 10 has certain wall thickness, it is possible to bear the highest pressure.
Pressure-bearing cylinder 10 is provided with import (not shown), is passed in pressure-bearing cylinder 10 for probe portion 2.Visit
After survey portion 2 pierces into pressure-bearing cylinder 10 inside by import, can tight fit carry out close between its periphery and import
Envelope.Preferably, import is provided with female thread, coordinates with the external screw thread in probe portion 2 so that probe portion 2
In the cylinder of precession pressure-bearing in a rotative pattern 10.
In order to further ensure that the sealing between import and probe portion 2, also can arrange close at the rwo
Seal.
Additionally, be additionally provided with pressure entrance and pressure relief vent on pressure-bearing cylinder 10, suppress pipeline 30 and relief tube
Line 40 is connected on pressure entrance and pressure relief vent.
As shown in fig. 1, in the present embodiment, pressure-bearing cylinder 10 is a columned cylinder, and import is arranged on
On one end end face of cylinder, pressure entrance and pressure relief vent are arranged in the axial sides of cylinder.
The pipeline 31 and being arranged on suppressed suppressing that pipeline 30 can include being connected on pressure-bearing cylinder 10 is suppressed
Inlet isolation valve 32 on pipeline 31.Suppress pipeline 31 1 end to be connected on the pressure entrance of pressure-bearing cylinder 10,
The other end supplies the access of equipment of suppressing away from pressure-bearing cylinder 10；Inlet isolation valve 32 suppresses pipeline for control
The break-make of 31.
Blowdown line 40 can include the relief pipeline 41 being connected on pressure-bearing cylinder 10 and be arranged on pressure release
Pressure release isolating valve 42 on pipeline 41.Relief pipeline 41 1 end is connected on the pressure relief vent of pressure-bearing cylinder 10,
The other end extends outside pressure-bearing cylinder 10；Pressure release isolating valve 42 is for controlling the break-make of relief pipeline 41.
Suppress pipeline 30 take pressure equipment pressure-bearing cylinder 10 is suppressed time, pressure release isolating valve 42 is by relief tube
Road 41 is closed.
In order to realize pressure measurement more accurately, in the present embodiment, pressure tester 50 includes electronic precision pressure gauge.
Electronic precision pressure gauge is connected to suppress on pipeline 31 by pressure measurement pipeline 51 and threeway 52, and is positioned at
Inlet isolation valve 32 is near the side of pressure-bearing cylinder 10.
Further, pressure measurement pipeline 51 is additionally provided with air pressure and monitors isolating valve 53, can control pressure-measuring pipe road 51
Break-make.
In the present embodiment, pressure tester 50 is connected to suppress the setting on pipeline 30, reduces at pressure-bearing cylinder
The setting of 10 upper sheds.Certainly, in other embodiments, pressure tester 50 can also be connected directly between and hold
On pressure cylinder 10, it is achieved pressure measuring function.
In temperature probe, being provided with flexible member between probe portion 2 and body 1, both are being made on the contrary
Can there be is gap under Yong Li by flexible member, be 5mm in normal field installation time gap.Alignment pin 20
It is fastened between the body 1 of temperature probe and probe portion 2, for the stressing conditions of analog temperature probe,
Probe portion 2 is positioned, makes to have between probe portion 2 and body 1 gap, and this gap is by positioning
Pin 20 is filled.
The size in gap between corresponding probe portion 2 and body 1, the thickness of alignment pin 20 is 5mm.
Preferably, alignment pin 20 is U-shaped pad, can be engaged between probe portion 2 and body 1 from side,
Pick and place conveniently.On alignment pin 20, the round and smooth process of polishing is all done in each edges and corners.
Further, this temperature probe leak tightness test device also includes that support 60, pressure-bearing cylinder 10 are erected at
On support 60；Pressure-bearing cylinder 10 be can be positioned on the table tops such as operating board by support 60.
When this utility model uses, to before scene to be installed to, temperature probe is carried out performing leak test.Will
The probe portion 2 of temperature probe is coupled in pressure-bearing cylinder 10, suppresses pipeline 30 connection and suppresses equipment, it is ensured that
Blowdown line 40 is closed；Suppress equipment voltage supply pressure-bearing cylinder 10 is suppressed, have in making pressure-bearing cylinder 10
Test desirable pressure；After continuing required time, in monitoring pressure-bearing cylinder 10 by pressure tester 50, pressure declines
Situation, judges whether probe portion 2 sealing property meets requirement；Blowdown line 40 is passed through after completing pressure monitoring
Carry out pressure release.According to performing leak test needs, temperature probe can be carried out repeatedly, the test of different pressures.
This utility model by performing leak test to temperature probe in advance, can get rid of sealing tight,
The probe of leakage of oil situation occurs, it is to avoid probe leakage oil condition occurs behind the scene of being installed to, it can be ensured that
Can use of the important system pumps such as such as auxiliary feed water pump group, Safety Injection pump group, chemistry volume control pump group
Property, ensure that nuclear power station runs safety, can be prevented effectively from simultaneously and delay overhaul duration danger.
The foregoing is only embodiment of the present utility model, not thereby limit patent model of the present utility model
Enclose, every equivalent structure utilizing this utility model description and accompanying drawing content to be made or equivalence flow process conversion,
Or directly or indirectly it is used in other relevant technical fields, the most in like manner it is included in patent of the present utility model
In protection domain.
Claims (10)
1. the leak tightness test device of a nuclear plant safety dedicated system pump group temperature probe, it is characterized in that, including the pressure-bearing cylinder (10) of the probe portion (2) for accommodating temperature probe and for being fastened between the body (1) of described temperature probe and probe portion (2) to position the alignment pin (20) of described probe portion (2)；It is connected on described pressure-bearing cylinder (10) suppress pipeline (30), for the blowdown line (40) of pressure release and pressure tester (50) that described pressure-bearing cylinder (10) internal pressure is detected for connect equipment of suppressing.
Leak tightness test device the most according to claim 1, it is characterised in that described pressure-bearing cylinder (10) is the cylinder closed, which is provided with and be passed into the import in described pressure-bearing cylinder (10) for described probe portion (2).
Leak tightness test device the most according to claim 2, it is characterised in that described import is provided with the female thread that external screw thread upper with described probe portion (2) coordinates.
Leak tightness test device the most according to claim 2, it is characterised in that be additionally provided with pressure entrance and pressure relief vent on described pressure-bearing cylinder (10), described in suppress pipeline (30) and blowdown line (40) is connected on described pressure entrance and pressure relief vent.
Leak tightness test device the most according to claim 1, it is characterised in that described in suppress that pipeline (30) includes being connected on described pressure-bearing cylinder (10) the inlet isolation valve (32) suppressed pipeline (31) and suppress on pipeline (31) described in being arranged on；
Described blowdown line (40) includes the relief pipeline (41) being connected on described pressure-bearing cylinder (10) and the pressure release isolating valve (42) being arranged on described relief pipeline (41).
Leak tightness test device the most according to claim 5, it is characterized in that, described pressure tester (50) includes electronic precision pressure gauge, its by pressure measurement pipeline (51) and threeway (52) be connected to described in suppress on pipeline (31), and be positioned at the side of the close described pressure-bearing cylinder (10) of described inlet isolation valve (32).
Leak tightness test device the most according to claim 6, it is characterised in that described pressure measurement pipeline (51) is additionally provided with air pressure and monitors isolating valve (53).
Leak tightness test device the most according to claim 1, it is characterised in that described alignment pin (20) is U-shaped pad.
Leak tightness test device the most according to claim 1, it is characterised in that the thickness of described alignment pin (20) is 5mm.
10. according to the leak tightness test device described in any one of claim 1-9, it is characterised in that this temperature probe leak tightness test device also includes that support (60), described pressure-bearing cylinder (10) are erected on described support (60).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620299630.8U CN205538123U (en) | 2016-04-11 | 2016-04-11 | Nuclear power station safety dedicated system pump package temperature probe's seal tightness test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620299630.8U CN205538123U (en) | 2016-04-11 | 2016-04-11 | Nuclear power station safety dedicated system pump package temperature probe's seal tightness test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205538123U true CN205538123U (en) | 2016-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620299630.8U Active CN205538123U (en) | 2016-04-11 | 2016-04-11 | Nuclear power station safety dedicated system pump package temperature probe's seal tightness test device |
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| CN (1) | CN205538123U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107741309A (en) * | 2017-11-30 | 2018-02-27 | 贝兹维仪器(苏州)有限公司 | A kind of separate type device for detecting sealability of LWD |
| CN108061625A (en) * | 2017-11-30 | 2018-05-22 | 贝兹维仪器(苏州)有限公司 | A kind of dismountable device for detecting sealability |
-
2016
- 2016-04-11 CN CN201620299630.8U patent/CN205538123U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107741309A (en) * | 2017-11-30 | 2018-02-27 | 贝兹维仪器(苏州)有限公司 | A kind of separate type device for detecting sealability of LWD |
| CN108061625A (en) * | 2017-11-30 | 2018-05-22 | 贝兹维仪器(苏州)有限公司 | A kind of dismountable device for detecting sealability |
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| GR01 | Patent grant |