CN108730668A - Reactor fluid power gate leakage monitoring nozzle plug and its tool specially for attaching and detaching - Google Patents
Reactor fluid power gate leakage monitoring nozzle plug and its tool specially for attaching and detaching Download PDFInfo
- Publication number
- CN108730668A CN108730668A CN201810550533.5A CN201810550533A CN108730668A CN 108730668 A CN108730668 A CN 108730668A CN 201810550533 A CN201810550533 A CN 201810550533A CN 108730668 A CN108730668 A CN 108730668A
- Authority
- CN
- China
- Prior art keywords
- plug
- spanner
- detaching
- attaching
- pressed component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 36
- 239000012530 fluid Substances 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 4
- 239000004327 boric acid Substances 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000012945 sealing adhesive Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
Abstract
The invention belongs to reactor service technique fields, it is insufficient for the prior art more particularly to one kind, there is provided it is a kind of realize reactor shaft rise water level during leakage monitoring pipeline closure, it prevents from causing measuring instrument false alarm, while the reactor fluid power gate leakage monitoring nozzle plug and its tool specially for attaching and detaching that create conditions is overhauled for downstream line and valve；Including leakage monitoring nozzle plug and tool specially for attaching and detaching；The wherein described leakage monitoring nozzle plug includes top pressed component (1), lower part pressed component (2), sealing joint strip (3) and clamp nut (4), the wherein described top pressed component (1) is fixed on by clamp nut (4) on lower part pressed component (2), and sealing joint strip (3) is equipped between the lower part pressed component (2) and top pressed component (1)；The tool specially for attaching and detaching includes plug sealing and solution sealing spanner and plug wrench for dismounting.
Description
Technical field
The invention belongs to reactor service technique fields, and in particular to a kind of reactor fluid power gate leakage monitoring nozzle is stifled
Head and its tool specially for attaching and detaching.
Background technology
Nuclear power station devises reactor core of the reactor core catcher for probability of happening 1,000,000 years 1 time and burns leakage accident, collects all puts
Penetrating property product prevents from flowing into the nuclear power station of environment.Cooling reactor core catcher needs 1400 tons of boric acid water.It is needed in conjunction with nuclear power station overhaul
It wants, unit is located at the in-pile component inspection shaft of reactor shaft both sides during normal operation and fuel pit respectively accommodates 700 tons of boron
Sour water.Unit uses fluid power gate during normal operation；Reactor shaft, which is filled to highest, allows liquid level.At this point, fluid power gate
Between leakage monitoring pipeline because not designing close measure, primary Ioops boric acid water, which pours into leakage monitoring pipeline, will cause measuring instrument
False alarm.Meanwhile downstream line and valve maintenance will be influenced full of boric acid water in leakage monitoring pipeline.Accordingly, it is considered to various aspects
Factor, and on-site actual situations are combined, it develops a kind of reactor fluid power gate leakage monitoring nozzle plug and its dismounting is special
Tool.
Invention content
The object of the present invention is to which in view of the shortcomings of the prior art, a kind of realization reactor shaft of offer leaks during rising water level
The closure for monitoring pipeline prevents from causing measuring instrument false alarm, while overhauling the reaction to create conditions for downstream line and valve
Heap fluid power gate leakage monitoring nozzle plug and its tool specially for attaching and detaching.
The technical scheme is that：
A kind of reactor fluid power gate leakage monitoring nozzle plug and its tool specially for attaching and detaching, including leakage monitoring nozzle are stifled
Head and tool specially for attaching and detaching；The wherein described leakage monitoring nozzle plug includes top pressed component, lower part pressed component, fluid sealant
Item and clamp nut, wherein the top pressed component is fixed on by clamp nut on the pressed component of lower part, the lower part pressure
Sealing joint strip is tightly equipped between component and top pressed component；The tool specially for attaching and detaching includes plug sealing and solution sealing spanner
With plug wrench for dismounting.
Through-hole is equipped among the top pressed component, through-hole both sides are evenly distributed with two dowel holes, top pressed component side
Along convex platform is equipped with, lower part is equipped with lower concave station.
The lower part pressed component includes plug sealing thread segment, plug dismounting thread segment, lower plate and convex platform, wherein
The convex platform is set to above lower plate, and convex platform upper surface center is equipped with column protrusion, and column protrusion is equipped with
There is plug to seal thread segment, plug sealing thread segment upper end is equipped with diameter and dismounts spiral shell less than the plug of plug sealing thread segment
Line section.
The plug sealing includes plug outer layer spanner, internal layer spanner, outer layer pinch bar, positioning with solution sealing spanner
Pin, internal layer pinch bar and interior six square sockets head, wherein the outer layer spanner is placed on the outside of internal layer spanner, internal layer spanner upper and lower side
It stretches out respectively, the upper end is equipped with internal layer pinch bar, and lower end is equipped with and interior six square sockets head, and outer layer spanner lower end is equipped with positioning
Pin, outer layer spanner are equipped with outer layer pinch bar.
Plug wrench for dismounting upper end is equipped with plug wrench for dismounting handle, and lower end is equipped with inner thread head.
The beneficial effects of the invention are as follows：
1. during nuclear power station overhaul, leakage monitoring nozzle plug is installed using specific purpose tool before reactor shaft rises water level
And it seals；
It is close that 2. using specific purpose tool plug is released plug significant sealing affection during liter water level, behind reactor shaft precipitation position
It seals and removes, the working face that the certifiable service personnel of specific purpose tool of " stock " design is in a safety completes this work
Make, substantially reduces the industry security and radiation safety risk of this work；
3. realizing the closure of leakage monitoring pipeline during reactor shaft rises water level, prevent from causing measuring instrument false alarm,
It creates conditions simultaneously for downstream line and valve maintenance.
Description of the drawings
Fig. 1 is leakage monitoring nozzle plug schematic diagram；
Fig. 2 is top pressed component schematic diagram；
Fig. 3 is lower part pressed component schematic diagram；
Fig. 4 is plug sealing and solution sealing spanner schematic diagram；
Fig. 5 is plug wrench for dismounting schematic diagram.
Specific implementation mode
The present invention is further introduced below in conjunction with the accompanying drawings：
A kind of reactor fluid power gate leakage monitoring nozzle plug and its tool specially for attaching and detaching, including leakage monitoring nozzle are stifled
Head and tool specially for attaching and detaching；The wherein described leakage monitoring nozzle plug includes top pressed component 1, lower part pressed component 2, sealing
Adhesive tape 3 and clamp nut 4, wherein the top pressed component 1 is fixed on by clamp nut 4 on lower part pressed component 2, it is described
Sealing joint strip 3 is equipped between lower part pressed component 2 and top pressed component 1；The tool specially for attaching and detaching include plug sealing with
Solution sealing spanner and plug wrench for dismounting.
Through-hole is equipped among the top pressed component 1, through-hole both sides are evenly distributed with two dowel holes 5, top pressed component 1
Edge is equipped with convex platform 6, and lower part is equipped with lower concave station 7.
The lower part pressed component 2 includes plug sealing thread segment 8, plug dismounting thread segment 9, lower plate 10 and convex platform
11, wherein the convex platform 11 is set to 10 top of lower plate, 11 upper surface center of the convex platform is equipped with column protrusion, stands
Column protrusion has plug to seal thread segment 8, and 8 upper end of the plug sealing thread segment is equipped with diameter and is less than plug sealing screw thread
The plug of section 8 dismounts thread segment 9.
Plug sealing and solution sealing spanner include plug outer layer spanner 12, internal layer spanner 13, outer layer pinch bar 14,
Positioning pin 15, internal layer pinch bar 16 and interior six square sockets head 17, wherein the outer layer spanner 12 is placed on 13 outside of internal layer spanner,
13 upper and lower side of internal layer spanner stretches out respectively, and the upper end is equipped with internal layer pinch bar 16, and lower end is equipped with and interior six square sockets head 17, outside
12 lower end of layer spanner is equipped with positioning pin 15, and outer layer spanner 12 is equipped with outer layer pinch bar 14.
Plug wrench for dismounting upper end is equipped with plug wrench for dismounting handle 18, and lower end is equipped with inner thread head 19.
Embodiment
Leakage monitoring nozzle plug is by four top pressed component, lower part pressed component, seal washer and clamp nut portions
It is grouped as.Plug sealing principle：Under plug original state, clamp nut malcompression top pressed component, sealing joint strip is in certainly
Right relaxed state.When being sealed with plug and solution sealing spanner tightens clamp nut, top pressed component downlink, lower part compresses structure
Part uplink, sealing joint strip is tightly attached to inner wall of the pipe by compression distending under the common squeezing action of upper-lower compacting component and lower part compresses
On member boss side wall, to realize sealing.
Top pressed component convex platform plays the role of positioning, and plug can be made to be located on the pipeline nozzle that need to be blocked.Positioning pin
There are two hole is total, for positioning and fixing plug sealing and solution sealing spanner outer layer spanner.On lower concave station and lower part pressed component
Boss matches, and for placing sealing joint strip and preventing sealing joint strip play radially, and lower part pressed component convex platform is vertical
Face is sealing surface.
Lower part pressed component plug sealing thread segment coordinates with clamp nut, provides the clamping force to sealing joint strip,
The sealing and solution for realizing plug seal.Plug dismounts thread segment and coordinates with plug wrench for dismounting lower internal thread head, can be used for
Plug is installed and split out in pipeline nozzle.
Plug, which is sealed, to be made of with solution sealing spanner outer layer spanner and internal layer spanner.Outer layer spanner main function is fixed stifled
Head, plug itself generates rotation during preventing sealing (or solution sealing) plug.Internal layer spanner main function be fastening (or twist
Pine) clamp nut, realize sealing joint strip distending (or rebound).Ectonexine spanner is designed with handle, and outer layer spanner lower part has two
A positioning pin coordinates with the upper part of the plug pressed component dowel hole, can fixed plug.There are interior six square socket heads in internal layer spanner bottom end,
For fastening (or unscrewing) clamp nut.
2. the application of leakage monitoring nozzle plug and its tool specially for attaching and detaching
During major overhaul, reactor shaft installs fluid power gatehouse leakage monitoring nozzle plug before rising water level.Installation side
Method：(1) check plug on sealing joint strip availability (such as adhesive tape is unavailable, dismountable clamp nut, take out top compress structure
Part, replace sealing joint strip after return load onto portion's pressed component and clamp nut)；(2) confirm that clamp nut is not tightened, at sealing joint strip
In relaxed state；(3) thin layer lubricating grease is smeared on plug sealing screw thread and dismounting screw thread, wrench for dismounting and plug is torn open
Thread segment connection is filled, lifts plug and is steadily placed on leakage monitoring nozzle；(4) wrench for dismounting is backed out, sealing and solution are sealed
Two positioning pins of spanner outer layer spanner are inserted into plug dowel hole, and holding outer layer pinch bar on the other hand prevents plug from rotating, on the other hand
It rotates clockwise internal layer spanner and tightens clamp nut, the abundant distending of sealing joint strip is made to realize sealing, remove sealing and pulled with solution sealing
Hand completes plug installation.
Behind reactor shaft precipitation position, plug dismounting is completed according to the opposite sequence of above-mentioned steps.The plug designs certainly
It since making, has been applied successfully in all previous overhaul, effectively plug leak monitors nozzle, during preventing reactor shaft from rising water level
Primary Ioops boric acid water enters leakage monitoring pipeline.And plug tool specially for attaching and detaching is ingenious in design, ensure service personnel be in compared with
The working face of safety carries out service work, ensures the industry security and radiation safety of personnel.
Reactor fluid power gate leakage monitoring nozzle plug and its tool specially for attaching and detaching are in the multiple overhaul of field gulf nuclear power station
It is applied successfully during rising water level, realizes leakage monitoring nozzle and effectively block, prevent measuring instrument false alarm, and be downstream line
It creates conditions with valve maintenance.The project can promote and apply in same type units related work.
The reactor fluid power gate leakage monitoring nozzle plug and its tool specially for attaching and detaching that this project designs and produces can push away
Extensively arrive closure of other similar devices of power station under special operation condition.
This project also has good reference for closure of other similar devices of the same trade under special operation condition.
Claims (5)
1. a kind of reactor fluid power gate leakage monitoring nozzle plug and its tool specially for attaching and detaching, it is characterised in that：Including leakage
Monitor nozzle plug and tool specially for attaching and detaching；The wherein described leakage monitoring nozzle plug includes top pressed component (1), lower part pressure
Tight component (2), sealing joint strip (3) and clamp nut (4), wherein the top pressed component (1) is fixed by clamp nut (4)
In on lower part pressed component (2), sealing joint strip (3) is equipped between the lower part pressed component (2) and top pressed component (1)；
The tool specially for attaching and detaching includes plug sealing and solution sealing spanner and plug wrench for dismounting.
2. a kind of reactor fluid power gate leakage monitoring nozzle plug as described in claim 1 and its tool specially for attaching and detaching,
It is characterized in that：Through-hole is equipped among the top pressed component (1), through-hole both sides are evenly distributed with two dowel holes (5), and top compresses
Component (1) edge is equipped with convex platform (6), and lower part is equipped with lower concave station (7).
3. a kind of reactor fluid power gate leakage monitoring nozzle plug as described in claim 1 and its tool specially for attaching and detaching,
It is characterized in that：The lower part pressed component (2) includes plug sealing thread segment (8), plug dismounting thread segment (9), lower plate
(10) and convex platform (11), wherein the convex platform (11) is set to above lower plate (10), in convex platform (11) upper surface
Heart position is equipped with column protrusion, and column protrusion has plug to seal thread segment (8), and the plug seals on thread segment (8)
End is equipped with the plug dismounting thread segment (9) that diameter is less than plug sealing thread segment (8).
4. a kind of reactor fluid power gate leakage monitoring nozzle plug as described in claim 1 and its tool specially for attaching and detaching,
It is characterized in that：The plug sealing includes plug outer layer spanner (12), internal layer spanner (13), outer layer spanner hand with solution sealing spanner
Handle (14), positioning pin (15), internal layer pinch bar (16) and interior six square sockets head (17), wherein the outer layer spanner (12) is placed on
On the outside of internal layer spanner (13), internal layer spanner (13) upper and lower side stretches out respectively, and the upper end is equipped with internal layer pinch bar (16), and lower end is set
Have and interior six square sockets head (17), outer layer spanner (12) lower end are equipped with positioning pin (15), outer layer spanner (12) is pulled equipped with outer layer
Hand handle (14).
5. a kind of reactor fluid power gate leakage monitoring nozzle plug as described in claim 1 and its tool specially for attaching and detaching,
It is characterized in that：Plug wrench for dismounting upper end is equipped with plug wrench for dismounting handle (18), and lower end is equipped with inner thread head (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810550533.5A CN108730668A (en) | 2018-05-31 | 2018-05-31 | Reactor fluid power gate leakage monitoring nozzle plug and its tool specially for attaching and detaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810550533.5A CN108730668A (en) | 2018-05-31 | 2018-05-31 | Reactor fluid power gate leakage monitoring nozzle plug and its tool specially for attaching and detaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108730668A true CN108730668A (en) | 2018-11-02 |
Family
ID=63931605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810550533.5A Pending CN108730668A (en) | 2018-05-31 | 2018-05-31 | Reactor fluid power gate leakage monitoring nozzle plug and its tool specially for attaching and detaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108730668A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112025605A (en) * | 2020-08-20 | 2020-12-04 | 中国航发沈阳发动机研究所 | Hole detector end cap assembly and disassembly tools |
| CN114425757A (en) * | 2020-10-29 | 2022-05-03 | 北京福田康明斯发动机有限公司 | Plug screwing tool |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112025605A (en) * | 2020-08-20 | 2020-12-04 | 中国航发沈阳发动机研究所 | Hole detector end cap assembly and disassembly tools |
| CN112025605B (en) * | 2020-08-20 | 2022-04-01 | 中国航发沈阳发动机研究所 | Hole detector end cap assembly and disassembly tools |
| CN114425757A (en) * | 2020-10-29 | 2022-05-03 | 北京福田康明斯发动机有限公司 | Plug screwing tool |
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