CN208854344U - One kind being used for nuclear leve control valve stand maintenance and installation tool - Google Patents
One kind being used for nuclear leve control valve stand maintenance and installation tool Download PDFInfo
- Publication number
- CN208854344U CN208854344U CN201821431041.6U CN201821431041U CN208854344U CN 208854344 U CN208854344 U CN 208854344U CN 201821431041 U CN201821431041 U CN 201821431041U CN 208854344 U CN208854344 U CN 208854344U
- Authority
- CN
- China
- Prior art keywords
- fastening
- valve seat
- location nut
- nut
- installation tool
- 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.)
- Active
Links
Landscapes
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The utility model belongs to mechanical assembly technique field, and in particular to one kind is used for nuclear leve control valve stand maintenance and installation tool.The utility model includes milling bar, fastening location nut, grinding head；Grinding head is located in the internal cavities of valve seat, and milling bar passes through the centre bore of fastening location nut, connect with grinding head.The utility model can be eliminated using the risk of damage valve seat when percussion screwdriver and hand hammer disassembly installation valve seat and screwdriver fastening is not in place to lead to valve seat insert leakage because regulating valve flow degree of regulation is caused to be deteriorated due to tapping.
Description
Technical field
The utility model belongs to mechanical assembly technique field, and in particular to one kind is used for nuclear leve control valve stand maintenance and installation
Tool.
Background technique
In two WWER-1000/V-428 type nuclear reactor plants of field gulf nuclear power station first stage of the project, there are more Tai Eluo
The y Ф 68019-015 К type nuclear leve regulating valve of this supply of material, the model regulating valve need to take valve valve seat in disassembling overhaul
Under, valve base sealing gasket is replaced, while grinding to sealing surface of seat, needs to re-secure valve seat when returning dress to compress valve base sealing
Gasket.The valve base sealing gasket is nickel washer, and since the valve seat is due to own structural characteristics, maintenance personal can only use and tap spiral shell
Silk knife taps the groove on valve seat top, and valve seat is screwed off from valve body, is similarly struck valve seat using percussion screwdriver when returning dress
Tightly to compress the sealing ring of valve seat, but since the pressing force that nickel washer needs is larger, hand hammer fastening is added to strike using screwdriver is tapped
It hits fastening valve seat to tend not to nickel washer being pressed onto position, thus will lead to valves leakage.Repeatedly tap on valve seat in this way
Groove dismounting valve seat in portion's will lead to valve seat deformation, the defects of burr occurs, while will affect spool and moving up and down in valve seat, holds
Easily lead to spool bite.The valve seat can only be oriented in grinding by centering cone simultaneously, and grinding precision is poor.
Summary of the invention
The technical issues of the utility model solves: in view of the deficiencies of the prior art, the utility model provides a kind of for core
Grade control valve stand maintenance and installation tool can be eliminated using damage valve seat when tapping screwdriver and hand hammer disassembly installation valve seat
Risk and screwdriver fastening is not in place to cause valve seat insert leakage because lead to regulating valve flow degree of regulation due to tapping
The problems such as variation.
The technical solution adopted in the utility model:
One kind being used for nuclear leve control valve stand maintenance and installation tool, including milling bar, fastening location nut, grinding head；It grinds
Bistrique is located in the internal cavities of valve seat, and milling bar passes through the centre bore of fastening location nut, connect with grinding head.
The fastening location nut includes fastening six square toes of location nut, fastening location nut pilot hole, fastening positioning spiral shell
Master card pawl；Fastening six square toes of location nut are fixedly mounted on the top of fastening positioning nut claw, fasten six square toes of location nut
Fastening location nut pilot hole is provided with fastening positioning nut claw center.
When valve seat is dismantled, fastening location nut is installed on valve seat top, makes fastening positioning nut claw insertion valve seat pair
The groove answered is stuck on fastening six square toes of location nut using spanner, unscrews valve seat and remove.
When valve seat is ground, the grinding abrasive paper that different size is sticked on grinding head grinds sealing surface of seat, grinding
Positioning and guiding is carried out using fastening location nut pilot hole in the process.
When valve seat is installed, fastening location nut is installed on valve seat top, makes fastening positioning nut claw insertion valve seat pair
The groove answered is stuck on fastening six square toes of location nut using spanner, tightens valve seat to desired moment values.
The utility model has the beneficial effects that
(1) provided by the utility model a kind of for nuclear leve control valve stand maintenance and installation tool, structure is simple, user
Just；
(2) provided by the utility model a kind of for nuclear leve control valve stand maintenance and installation tool, it can effectively solve the problem that core
The disassembly of grade control valve stand and fastening problems, and time saving, laborsaving, work efficiency is high, reduce personnel in operating environment by
Dose of radiation；
(3) provided by the utility model a kind of for nuclear leve control valve stand maintenance and installation tool, nuclear leve can be adjusted
Valve base is ground, and has guide function.
Detailed description of the invention
Fig. 1 is nuclear leve control valve stand structural schematic diagram applied by the utility model；
Fig. 2 is provided by the utility model a kind of for nuclear leve control valve stand maintenance and installation tool construction schematic diagram；
Fig. 3 is fastening positioning nut structure diagram；
Fig. 4 is fastening location nut dimensional drawing；
Fig. 5 is grinding head dimensional drawing；
In figure: 1- milling bar, 2- fastening location nut, 3- grinding head, 4- valve seat, 5- fasten six square toes of location nut, 6-
Fasten location nut pilot hole, 7- fastening positioning nut claw.
Specific embodiment
In the following with reference to the drawings and specific embodiments to provided by the utility model a kind of for the maintenance of nuclear leve control valve stand
Installation tool is described in further detail.
As shown in Fig. 2, provided by the utility model a kind of for nuclear leve control valve stand maintenance and installation tool, including grinding
Bar 1, fastening location nut 2, grinding head 3；Grinding head 3 is located in the internal cavities of valve seat 4, and milling bar 1 passes through fastening positioning spiral shell
The centre bore of mother 2, is threadedly coupled with grinding head 3.
Fastening location nut 2 includes fastening six square toes 5 of location nut, fastening location nut pilot hole 6, fastening location nut
Claw 7；Fastening six square toes 5 of location nut are fixedly mounted on the top of fastening positioning nut claw 7, fasten six square toes of location nut
5 are provided with fastening location nut pilot hole 6 with fastening positioning 7 center of nut claw.
The working principle of the utility model are as follows:
When valve seat is dismantled, fastening location nut 2 is installed on 4 top of valve seat, fastening positioning nut claw 7 is made to be inserted into valve seat
4 corresponding grooves are stuck on fastening six square toes 5 of location nut using spanner, unscrew valve seat 4 and remove.
When valve seat is ground, the grinding abrasive paper that different size is sticked on grinding head 3 grinds 4 sealing surface of valve seat, grinds
Positioning and guiding is carried out using fastening location nut pilot hole 6 during mill.
When valve seat is installed, fastening location nut 2 is installed on 4 top of valve seat, fastening positioning nut claw 7 is made to be inserted into valve seat
4 corresponding grooves are stuck on fastening six square toes 5 of location nut using spanner, tighten valve seat 4 to desired moment values.
Claims (5)
1. one kind is used for nuclear leve control valve stand maintenance and installation tool, it is characterised in that: including milling bar (1), fastening positioning spiral shell
Female (2), grinding head (3)；Grinding head (3) is located in the internal cavities of valve seat (4), and milling bar (1) passes through fastening location nut (2)
Centre bore, connect with grinding head (3).
2. according to claim 1 a kind of for nuclear leve control valve stand maintenance and installation tool, it is characterised in that: described tight
Fixed bit nut (2) includes fastening six square toes of location nut (5), fastening location nut pilot hole (6), fastening positioning nut claw
(7)；Fastening six square toes of location nut (5) is fixedly mounted on the top of fastening positioning nut claw (7), fastens six side of location nut
Head (5) and fastening positioning nut claw (7) center are provided with fastening location nut pilot hole (6).
3. according to claim 2 a kind of for nuclear leve control valve stand maintenance and installation tool, it is characterised in that: valve seat is torn open
When unloading, fastening location nut (2) is installed on valve seat (4) top, keeps fastening positioning nut claw (7) insertion valve seat (4) corresponding
Groove, using spanner be stuck in fastening six square toes of location nut (5) on, unscrew valve seat (4) and remove.
4. according to claim 2 a kind of for nuclear leve control valve stand maintenance and installation tool, it is characterised in that: valve seat is ground
When mill, the grinding abrasive paper that different size is sticked on grinding head (3) grinds valve seat (4) sealing surface, sharp in process of lapping
Positioning and guiding is carried out with fastening location nut pilot hole (6).
5. according to claim 2 a kind of for nuclear leve control valve stand maintenance and installation tool, it is characterised in that: valve seat peace
When dress, fastening location nut (2) is installed on valve seat (4) top, keeps fastening positioning nut claw (7) insertion valve seat (4) corresponding
Groove, using spanner be stuck in fastening six square toes of location nut (5) on, tighten valve seat (4) to require moment values.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821431041.6U CN208854344U (en) | 2018-09-03 | 2018-09-03 | One kind being used for nuclear leve control valve stand maintenance and installation tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821431041.6U CN208854344U (en) | 2018-09-03 | 2018-09-03 | One kind being used for nuclear leve control valve stand maintenance and installation tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208854344U true CN208854344U (en) | 2019-05-14 |
Family
ID=66416649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821431041.6U Active CN208854344U (en) | 2018-09-03 | 2018-09-03 | One kind being used for nuclear leve control valve stand maintenance and installation tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208854344U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109108770A (en) * | 2018-09-03 | 2019-01-01 | 江苏核电有限公司 | One kind being used for nuclear leve control valve stand maintenance and installation tool |
-
2018
- 2018-09-03 CN CN201821431041.6U patent/CN208854344U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109108770A (en) * | 2018-09-03 | 2019-01-01 | 江苏核电有限公司 | One kind being used for nuclear leve control valve stand maintenance and installation tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208854344U (en) | One kind being used for nuclear leve control valve stand maintenance and installation tool | |
| CN201856161U (en) | Special tool for repairing sealing surface of high-pressure equipment | |
| CN206029320U (en) | A locating component that is used for large -scale work piece high accuracy processing frock | |
| CN109108770A (en) | One kind being used for nuclear leve control valve stand maintenance and installation tool | |
| CN201815894U (en) | Structure of integrated adjusting pressure plate | |
| CN208147611U (en) | High temperature and pressure non-return flap sealing surface of seat milling tool | |
| CN203317331U (en) | Disassembling tool for check valves of homogenizers | |
| CN205363544U (en) | Cam rubbing head | |
| CN212947570U (en) | Marine diesel engine air valve seat ring dismounting device | |
| CN212350466U (en) | Driven bevel gear drilling equipment | |
| CN201586803U (en) | Overthreading screw tap capable of self-adjusting concentricity with internal threads | |
| CN212161304U (en) | Reactor pressure-resistant shell automatically regulated grinder | |
| CN209394565U (en) | A kind of four plug valve stem gland nut moment clamp devices | |
| CN209394607U (en) | A kind of valve bearing gland nut dismounting tool | |
| CN209245334U (en) | High-pressure self-tightening sealing core | |
| CN202862143U (en) | Valve fastening tool for narrow space | |
| CN215215027U (en) | Gap adjusting device for air inlet and outlet valves of nuclear power emergency diesel engine | |
| CN202372404U (en) | Bolt and screw tension test fixture | |
| CN219054265U (en) | Novel adjustable valve seat extractor | |
| CN205765809U (en) | Lower nut pulling off sleeves spanner of 500kV Guywire tower distaff | |
| CN217842830U (en) | Adjustable back pressure valve for nuclear power equipment | |
| CN219465873U (en) | Valve seat clamping tool of double-valve seat mating grinder of hard seal ball valve | |
| CN203337367U (en) | Spring safety valve set-pressure value applying apparatus | |
| CN211709200U (en) | Diesel engine valve seat dismantles frock | |
| CN206191055U (en) | Multi -purpose pipeline pressure valve regulation instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |