CN208735101U - Reactor fluid power gate leakage monitor - Google Patents
Reactor fluid power gate leakage monitor Download PDFInfo
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- CN208735101U CN208735101U CN201820835052.4U CN201820835052U CN208735101U CN 208735101 U CN208735101 U CN 208735101U CN 201820835052 U CN201820835052 U CN 201820835052U CN 208735101 U CN208735101 U CN 208735101U
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- sealing
- fluid power
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Abstract
The utility model belongs to reactor service technique field, more particularly to a kind of reactor fluid power gate leakage monitor, 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 overhauling the reactor fluid power gate leakage monitoring nozzle plug and its tool specially for attaching and detaching that create conditions for downstream line and valve；Including leakage monitoring nozzle plug and tool specially for attaching and detaching；Wherein the leakage monitoring nozzle plug includes top pressed component (1), lower part pressed component (2), sealing joint strip (3) and clamp nut (4), wherein the top pressed component (1) is fixed on lower part pressed component (2) by clamp nut (4), is equipped with sealing joint strip (3) 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 technique
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 put
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 two 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 it will affect downstream line and valve maintenance 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 dedicated
Tool.
Summary of the invention
The object of the present invention is to be leaked in view of the shortcomings of the prior art, providing during a kind of realization reactor shaft rises 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；Wherein the leakage monitoring nozzle plug includes top pressed component, lower part pressed component, sealant
Item and clamp nut, wherein the top pressed component is fixed on the pressed component of lower part by clamp nut, the lower part pressure
Sealing joint strip is equipped between tight 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 two 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 present invention are:
1. during nuclear power station overhaul, installing leakage monitoring nozzle plug 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 the 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.
Detailed description of the invention
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 embodiment
The present invention is further introduced with reference to the accompanying drawing:
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；Wherein the leakage monitoring nozzle plug include top pressed component 1, it is lower part pressed component 2, close
Seal strip 3 and clamp nut 4, wherein the top pressed component 1 is fixed on lower part pressed component 2 by clamp nut 4, institute
It states and is equipped with sealing joint strip 3 between lower part pressed component 2 and top pressed component 1；The tool specially for attaching and detaching includes plug sealing
With solution sealing spanner and plug wrench for dismounting.
Through-hole is equipped among the top pressed component 1, through-hole two 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, the 11 upper surface center of convex platform is equipped with column protrusion,
Column protrusion has plug to seal thread segment 8, and the plug sealing 8 upper end of thread segment is equipped with diameter and is less than plug sealing spiral shell
The plug of line 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
Layer 12 lower end of 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 seals thread segment and clamp nut cooperates, and provides the clamping force to sealing joint strip,
The sealing and solution for realizing plug seal.Plug dismounts thread segment and plug wrench for dismounting lower internal thread head cooperates, and can be used for
Plug is installed and split out in pipeline nozzle.
Plug sealing is made of with solution sealing spanner outer layer spanner and internal layer spanner.Outer layer spanner main function is fixed stifled
Head prevents plug itself during sealing (or solution sealing) plug from generating rotation.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 and the upper part of the plug pressed component dowel hole cooperate, 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) confirmation clamp nut is not tightened, sealing joint strip
In relaxed state；(3) thin layer lubricating grease is smeared on plug sealing screw thread and dismounting screw thread, by wrench for dismounting and plug
Thread segment connection is dismounted, lifts plug and is steadily placed on leakage monitoring nozzle；(4) wrench for dismounting is backed out, by sealing and decryption
It seals two positioning pins of spanner outer layer spanner and is inserted into plug dowel hole, holding outer layer pinch bar on the other hand prevents plug from rotating, and one
Hand rotates clockwise internal layer spanner and tightens clamp nut, and the abundant distending of sealing joint strip is made to realize sealing, removes sealing and seals with solution
Spanner completes plug installation.
Behind reactor shaft precipitation position, plug disassembly is completed according to the opposite sequence of above-mentioned steps.The plug designs certainly
It since production, 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, guarantee service personnel be in compared with
The working face of safety carries out service work, guarantees 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 the other similar equipment in power station under special operation condition.
This project also has good reference for closure of the other similar equipment of the same trade under special operation condition.
Claims (5)
1. a kind of reactor fluid power gate leakage monitor, it is characterised in that: special including leakage monitoring nozzle plug and dismounting
Use tool；Wherein the leakage monitoring nozzle plug includes top pressed component (1), lower part pressed component (2), sealing joint strip
(3) and clamp nut (4), wherein the top pressed component (1) is fixed on lower part pressed component (2) by clamp nut (4)
On, sealing joint strip (3) are equipped between the lower part pressed component (2) and top pressed component (1)；The tool specially for attaching and detaching packet
Include plug sealing and solution sealing spanner and plug wrench for dismounting.
2. a kind of reactor fluid power gate leakage monitor as described in claim 1, it is characterised in that: the top compresses
Through-hole is equipped among component (1), through-hole two sides are evenly distributed with two dowel holes (5), and pressed component (1) edge in top is equipped with convex platform
(6), lower part is equipped with lower concave station (7).
3. a kind of reactor fluid power gate leakage monitor as described in claim 1, it is characterised in that: the lower part compresses
Component (2) includes that plug seals thread segment (8), plug dismounting thread segment (9), lower plate (10) and convex platform (11), wherein institute
Convex platform (11) are stated above lower plate (10), convex platform (11) the upper surface center is equipped with column protrusion, column
Protrusion is equipped with plug sealing thread segment (8), and plug sealing thread segment (8) upper end is equipped with diameter and seals screw thread less than plug
The plug of section (8) dismounts thread segment (9).
4. a kind of reactor fluid power gate leakage monitor as described in claim 1, it is characterised in that: the plug sealing
It include plug outer layer spanner (12) with solution sealing spanner, internal layer spanner (13), outer layer pinch bar (14), positioning pin (15), interior
Layer pinch bar (16) and interior six square sockets head (17), wherein the outer layer spanner (12) is placed on the outside of internal layer spanner (13), it is interior
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 equipped with and interior six square sockets head
(17), outer layer spanner (12) lower end is equipped with positioning pin (15), and outer layer spanner (12) is equipped with outer layer pinch bar (14).
5. a kind of reactor fluid power gate leakage monitor as described in claim 1, it is characterised in that: the plug dismounting
Spanner 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 |
|---|---|---|---|
| CN201820835052.4U CN208735101U (en) | 2018-05-31 | 2018-05-31 | Reactor fluid power gate leakage monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820835052.4U CN208735101U (en) | 2018-05-31 | 2018-05-31 | Reactor fluid power gate leakage monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208735101U true CN208735101U (en) | 2019-04-12 |
Family
ID=66023207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820835052.4U Active CN208735101U (en) | 2018-05-31 | 2018-05-31 | Reactor fluid power gate leakage monitor |
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| CN (1) | CN208735101U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730668A (en) * | 2018-05-31 | 2018-11-02 | 江苏核电有限公司 | Reactor fluid power gate leakage monitoring nozzle plug and its tool specially for attaching and detaching |
| CN113154039A (en) * | 2021-04-07 | 2021-07-23 | 江苏核电有限公司 | Irregular type floor drain plugging device of reactor |
-
2018
- 2018-05-31 CN CN201820835052.4U patent/CN208735101U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730668A (en) * | 2018-05-31 | 2018-11-02 | 江苏核电有限公司 | Reactor fluid power gate leakage monitoring nozzle plug and its tool specially for attaching and detaching |
| CN113154039A (en) * | 2021-04-07 | 2021-07-23 | 江苏核电有限公司 | Irregular type floor drain plugging device of reactor |
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