CN205447096U - Be used for flow restrictor hole plugging device - Google Patents
Be used for flow restrictor hole plugging device Download PDFInfo
- Publication number
- CN205447096U CN205447096U CN201521131801.8U CN201521131801U CN205447096U CN 205447096 U CN205447096 U CN 205447096U CN 201521131801 U CN201521131801 U CN 201521131801U CN 205447096 U CN205447096 U CN 205447096U
- Authority
- CN
- China
- Prior art keywords
- flow restrictor
- plugging device
- sealing rubber
- hole plugging
- flange dish
- 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.)
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Abstract
The utility model relates to a technical field is overhauld in the shutoff, specifically discloses a device that is used for the shutoff of flow restrictor hole. A be used for flow restrictor hole plugging device, this flow restrictor hole plugging device includes the compression screw subassembly, gland nut, supported flange dish and expandable sealing rubber, wherein, the compression screw subassembly includes the disc structure of upper end, and the bar -shaped screw rod structure at disc structure lower extreme center, there are the expandable sealing rubber of cylinder structure and the supported flange dish of disc structure at the structural cover of the screw rod of compression screw subassembly, and utilize and fix gland nut on compression screw subassembly screw rod, compress tightly expandable sealing rubber and fix on the compression screw subassembly between end disc and the supported flange dish. A be used for flow restrictor hole plugging device, simple reliable, make shutoff limitation of delivery hole simpler and easy reliable, utilize this plugging device, can guarantee that steam generator tubes helium leak test goes on smoothly.
Description
Technical field
This utility model belongs to closure service technique field, is specifically related to a kind of device for the closure of flow restrictor hole.
Background technology
According to RSE-M97 version (2000) code requirement, nuclear power station unit must implement the test of steam generator heat-transfer pipe 100% helium leak check when each Ten-year outage, and leak test needs to carry out isolating pressurising to vaporizer secondary side, therefore plugging device must be used to block secondary side flow restrictor hole, it is to avoid helium is revealed by flow restrictor hole.
Summary of the invention
The purpose of this utility model is to provide a kind of for flow restrictor hole plugging device, and it may be used for the closure in secondary side flow restrictor hole, it is ensured that steam generator heat-transfer pipe helium leak test leak test is smoothed out.
The technical solution of the utility model is as follows: a kind of for flow restrictor hole plugging device, this flow restrictor hole plugging device includes clamping screw assembly, clamp nut, supported flange dish and Expansion sealing rubber, wherein, clamping screw assembly includes the disc structure of upper end, and the bar-shaped screw-rod structure of disc structure lower center, the screw-rod structure of clamping screw assembly is cased with the Expansion sealing rubber of cylindrical structure and the supported flange dish of disc structure, and utilization is fixed on clamp nut on clamping screw assembly screw rod, Expansion sealing rubber is pressed abd fixed on clamping screw assembly between end disc and supported flange dish.
Described Expansion sealing rubber diameter matches with clamping screw assembly upper end disc structure diameter.
The diameter of described supported flange dish is more than the diameter of Expansion sealing rubber, and is provided with seal washer in supported flange dish upper end exceedes the annular region of Expansion sealing rubber.
Also it is cased with handle outside described clamp nut, and by screw of handle, handle is fixed on the lower section of supported flange dish.
Described clamping screw assembly screw-rod structure lower end is additionally provided with screwed retaining ring, to prevent clamp nut from departing from the screw-rod structure of clamping screw assembly.
Described Expansion sealing rubber is nitrile rubber, and its shore hardness is HA60～65.
Remarkable result of the present utility model is: one described in the utility model is used for flow restrictor hole plugging device, simple and reliable, make closure Flow Limit drilling simpler reliable, utilize this plugging device, it is ensured that steam generator heat-transfer pipe helium leak test is smoothed out.
Accompanying drawing explanation
Fig. 1 is that one described in the utility model is for flow restrictor hole plugging device structural representation；
Fig. 2 is that one described in the utility model blocks schematic diagram for flow restrictor hole plugging device；
In figure: 1, clamping screw assembly；2, screwed retaining ring；3, clamp nut；4, handle；5, screw of handle；6, supported flange dish；7, seal washer；8, Expansion sealing rubber；9, flow restrictor hole plugging device；10, flow restrictor；11, bracket assembled body.
Detailed description of the invention
Below in conjunction with the accompanying drawings and this utility model is described in further detail by specific embodiment.
As shown in Figure 1, a kind of for flow restrictor hole plugging device, including clamping screw assembly 1, clamp nut 3, supported flange dish 6 and Expansion sealing rubber 8, wherein, clamping screw assembly 1 upper end is disc structure, and center is the bar-shaped screw-rod structure that lower end is threaded structure；The Expansion sealing rubber 8 of the cylindrical structure that center drilling matches with clamping screw assembly 1 upper end disk diameter size, and the supported flange dish 6 of disc structure is sequentially sleeved in the screw-rod structure at clamping screw assembly 1 center, and utilize clamp nut 3 to be pressed abd fixed on by Expansion sealing rubber 8 on clamping screw assembly 1 between end disc and supported flange dish 6, wherein, the diameter of supported flange dish 6 is more than the diameter of Expansion sealing rubber 8, and is provided with seal washer 7 in supported flange dish 6 upper end exceedes the annular region of Expansion sealing rubber 8；Handle 4 is enclosed within outside clamp nut 3, and utilizes screw of handle 5 that handle 4 is fixed on the lower section of supported flange dish 6；It is also equipped with screwed retaining ring 2 in clamping screw assembly 1 screw-rod structure lower end, can prevent clamp nut 3 from departing from the screw-rod structure of clamping screw assembly 1；Expansion sealing rubber 8 is nitrile rubber, and its shore hardness is HA60～65.
A kind of specific works process for flow restrictor hole plugging device 9 described in the utility model is: as shown in Figure 2, flow restrictor 10 is fixed on bracket assembled body, flow restrictor hole plugging device 9 is arranged in flow restrictor hole, Expansion sealing rubber 8 matches with flow restrictor aperture, and the lower surface in the seal washer 7 of supported flange dish 6 upper end and this flow restrictor hole seals laminating mutually；Using sleeve rotating clamp nut 3, drive supported flange dish 6 to compress Expansion sealing rubber 8, clamp load torque presses to 75Nm, makes Expansion sealing rubber 8 outer ring surface swell, it is achieved the closure in flow restrictor hole.
Claims (6)
1. one kind is used for flow restrictor hole plugging device, it is characterized in that: this flow restrictor hole plugging device includes clamping screw assembly (1), clamp nut (3), supported flange dish (6) and Expansion sealing rubber (8), wherein, clamping screw assembly (1) includes the disc structure of upper end, and the bar-shaped screw-rod structure of disc structure lower center, the screw-rod structure of clamping screw assembly (1) is cased with the Expansion sealing rubber (8) of cylindrical structure and the supported flange dish (6) of disc structure, and utilization is fixed on clamp nut (3) on clamping screw assembly (1) screw rod, Expansion sealing rubber (8) is pressed abd fixed on clamping screw assembly (1) upper between end disc and supported flange dish (6).
One the most according to claim 1 is used for flow restrictor hole plugging device, it is characterised in that: described Expansion sealing rubber (8) diameter matches with clamping screw assembly (1) upper end disc structure diameter.
One the most according to claim 1 is used for flow restrictor hole plugging device, it is characterized in that: the diameter of described supported flange dish (6) is more than the diameter of Expansion sealing rubber (8), and is provided with seal washer (7) in supported flange dish (6) upper end exceedes the annular region of Expansion sealing rubber (8).
One the most according to claim 1 is used for flow restrictor hole plugging device, it is characterized in that: described clamp nut (3) is the most also cased with handle (4), and handle (4) is fixed on the lower section of supported flange dish (6) by screw of handle (5).
One the most according to claim 1 is used for flow restrictor hole plugging device, it is characterized in that: described clamping screw assembly (1) screw-rod structure lower end is additionally provided with screwed retaining ring (2), to prevent clamp nut (3) from departing from the screw-rod structure of clamping screw assembly (1).
6. according to Claims 1 to 5 arbitrarily described for flow restrictor hole plugging device, it is characterised in that: described Expansion sealing rubber (8) is nitrile rubber, and its shore hardness is HA60～65.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521131801.8U CN205447096U (en) | 2015-12-30 | 2015-12-30 | Be used for flow restrictor hole plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521131801.8U CN205447096U (en) | 2015-12-30 | 2015-12-30 | Be used for flow restrictor hole plugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205447096U true CN205447096U (en) | 2016-08-10 |
Family
ID=56599035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521131801.8U Active CN205447096U (en) | 2015-12-30 | 2015-12-30 | Be used for flow restrictor hole plugging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205447096U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975650A (en) * | 2017-11-28 | 2018-05-01 | 丹东通博电器(集团)有限公司 | Flange hole fast plugging device |
-
2015
- 2015-12-30 CN CN201521131801.8U patent/CN205447096U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975650A (en) * | 2017-11-28 | 2018-05-01 | 丹东通博电器(集团)有限公司 | Flange hole fast plugging device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |