CN205441691U - A transport mechanism for steam generator tubes intertube overhauls - Google Patents
A transport mechanism for steam generator tubes intertube overhauls Download PDFInfo
- Publication number
- CN205441691U CN205441691U CN201521131140.9U CN201521131140U CN205441691U CN 205441691 U CN205441691 U CN 205441691U CN 201521131140 U CN201521131140 U CN 201521131140U CN 205441691 U CN205441691 U CN 205441691U
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- steam generator
- intertube
- foreign matter
- utility
- transport mechanism
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Abstract
The utility model belongs to the technical field of the regional foreign matter of steam generator secondary side tube sheet intertube snatchs and the video inspection, concretely relates to a transport mechanism for steam generator tubes intertube overhauls. Including nylon piece and wire rope, the nylon piece is the cuboid structure, both sides processing recess, and a plurality of nylon piece is closely arranged, through two wire rope cross -under. The nylon piece open and to have the centre bore, probe or foreign matter gripping tool pass this centre bore, carry out step -by -steply and deflect the action along with transport mechanism. The utility model discloses use driving method that the sprocket drove the chain to send video probe and gripping tool into the steam generator tubes intertube, simultaneously step -by -step for using, push away pull out, rotary driving mechanism realizes the accurate positioning, the realization is snatched the accuracy of foreign matter. The utility model discloses can replace traditional artifical manual foreign matter and snatch the mode, avoid operating personnel to receive too much radiation exposure.
Description
Technical field
This utility model belongs to foreign body grabbing and the video check technical field in region between steam generator secondary side tube sheet pipe, is specifically related to a kind of connecting gear of maintenance between steam generator heat-transfer pipe pipe.
Background technology
Steam generator is one of nuclear power plant's key equipment, and its heat-transfer pipe constitutes the pressure boundary that primary Ioops is maximum.Occur in the clamping class exotic in region between steam generator secondary side tube sheet pipe, constantly can expand in oxidizing process, extrude heat-transfer pipe, ultimately result in heat-transfer pipe and damage；And loosen class exotic, then in steam generator running, can constantly clash into heat-transfer pipe with current, cause transducer wall's abrasion, even be converted to clamp class exotic.Owing to steam generator structure is special, common gripping tool can not effectively stretch into and capture, between pipe, the foreign body found, finished product steel belt is currently mainly used to carry out related work, but steel band procurement cycle is long, expensive, easily there is abrasion in rectangle gathering sill for chain gear transmission, causes steel band disabler.
Summary of the invention
The purpose of this utility model is to provide a kind of connecting gear of maintenance between steam generator heat-transfer pipe pipe, to realize foreign body grabbing and the video check in area stenosis space between steam generator heat-transfer pipe pipe.
For reaching above-mentioned purpose, technical solution adopted in the utility model is:
A kind of connecting gear of maintenance between steam generator heat-transfer pipe pipe, including nylon block and steel wire rope, described nylon block is rectangular structure, and both sides processing groove, several nylon block close-packed arrays, by two steel wire rope cross-under.
Described nylon block has centre bore, probe or foreign body grabbing instrument and passes this centre bore, performs stepping and deflection action with connecting gear.
Having the beneficial effect that acquired by this utility model
This utility model uses sprocket wheel to drive the type of drive of chain to send between steam generator heat-transfer pipe pipe by video probe and gripping tool, simultaneously for use stepping, push away pull out, rotary drive mechanism realizes being accurately positioned, it is achieved the accurate crawl to foreign body.This utility model can replace traditional foreign body grabbing mode manually, it is to avoid operator are irradiated by too much radiation.
Accompanying drawing explanation
Fig. 1 is the connecting gear schematic diagram that this utility model overhauls between steam generator heat-transfer pipe pipe；
In figure: 1, nylon block；2, steel wire rope.
Detailed description of the invention
With specific embodiment, this utility model is described in detail below in conjunction with the accompanying drawings.
As shown in Figure 1, the connecting gear overhauled between steam generator heat-transfer pipe pipe described in the utility model includes nylon block 1 and steel wire rope 2, several nylon blocks 1 are formed by the cross-under of two steel wire ropes 2, probe or foreign body grabbing instrument can be through the centre bores of nylon block 1, stepping and deflection action can be performed with connecting gear, make probe or foreign body grabbing instrument enter correctly between steam generator, complete the audit function being correlated with.Described nylon block 1 is in rectangular structure, and both sides processing groove, for coordinating with drive sprocket after several nylon block 1 close-packed arrays.
Claims (2)
1. the connecting gear of maintenance between steam generator heat-transfer pipe pipe, it is characterized in that: include nylon block (1) and steel wire rope (2), described nylon block (1) is in rectangular structure, both sides processing groove, several nylon blocks (1) close-packed arrays, by the cross-under of two steel wire ropes (2).
The connecting gear of maintenance between steam generator heat-transfer pipe pipe the most according to claim 1, it is characterized in that: described nylon block (1) has centre bore, probe or foreign body grabbing instrument, through this centre bore, perform stepping and deflection action with connecting gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521131140.9U CN205441691U (en) | 2015-12-30 | 2015-12-30 | A transport mechanism for steam generator tubes intertube overhauls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521131140.9U CN205441691U (en) | 2015-12-30 | 2015-12-30 | A transport mechanism for steam generator tubes intertube overhauls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205441691U true CN205441691U (en) | 2016-08-10 |
Family
ID=56598872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521131140.9U Active CN205441691U (en) | 2015-12-30 | 2015-12-30 | A transport mechanism for steam generator tubes intertube overhauls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205441691U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108263505A (en) * | 2016-12-30 | 2018-07-10 | 核动力运行研究所 | Foreign body grabbing climbs wall trolley and method between steam generator secondary side tube sheet pipe |
-
2015
- 2015-12-30 CN CN201521131140.9U patent/CN205441691U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108263505A (en) * | 2016-12-30 | 2018-07-10 | 核动力运行研究所 | Foreign body grabbing climbs wall trolley and method between steam generator secondary side tube sheet pipe |
| CN108263505B (en) * | 2016-12-30 | 2023-09-08 | 核动力运行研究所 | Wall climbing trolley and method for grabbing foreign matters between secondary side tube plates of steam generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |