CN206780294U - A kind of nuclear power plant impressed current anode withdrawing device - Google Patents
A kind of nuclear power plant impressed current anode withdrawing device Download PDFInfo
- Publication number
- CN206780294U CN206780294U CN201720545924.9U CN201720545924U CN206780294U CN 206780294 U CN206780294 U CN 206780294U CN 201720545924 U CN201720545924 U CN 201720545924U CN 206780294 U CN206780294 U CN 206780294U
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- China
- Prior art keywords
- impressed current
- current anode
- circular sleeve
- spanner
- power plant
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Abstract
The utility model belongs to nuclear power plant's clamp art, more particularly to a kind of nuclear power plant impressed current anode withdrawing device, purpose is to take out impressed current anode rapidly, have developed a sleeve clamp, and the stress of impressed current anode can be controlled to take out impressed current anode within the shortest time.It is characterized in that：Its spanner, circular sleeve support, nut, card base, power transmission shaft and gear structure；The position of spanner in the inner part is flexibly connected with the upper end of circular sleeve support；The inner side termination of spanner is fixedly connected with gear structure；Engaged with power transmission shaft the inner side of gear structure；Nut is fixed on the lower end of power transmission shaft, positioned at the inside of circular sleeve support；Card base is arranged on the lower end of circular sleeve support.For the utility model due to the use of support, whole device becomes stable so that acts on the direction of power on impressed current anode along the axial direction of impressed current anode.And spanner is effectively amplified power by leverage, it is more easy to take out impressed current anode.
Description
Technical field
The utility model belongs to nuclear power plant's clamp art, and in particular to a kind of nuclear power plant is taken out with impressed current anode and filled
Put.
Background technology
In the sea water service system of nuclear power plant, to protect part critical piping, impressed current cathodic protection is employed to avoid
Or weaken the generation of corrosion, therefore some impressed current anodes arranged in the duct.These impressed current anodes serve protection for a long time
The effect of pipeline, but with the extension of time, part impressed current anode due to damage or other reasonses need to change, impressed current anode
Mounting structure it is as shown in Figure 1.
Existing replacing options are that after the bolt on flange is removed, whole impressed current anode is extracted.If impressed current anode
Usage time is shorter, and debris is less between impressed current anode and impressed current anode sleeve does not bond, and rub smaller non-bite between the two,
Impressed current anode smoothly can rapidly take out.But normal conditions are due to impressed current anode much time using, and it is between sleeve
There is substantial amounts of debris, frictional force is huge between impressed current anode and sleeve.In this case if using the mode directly extracted, it is difficult to
Impressed current anode is taken out.And the mode directly extracted is difficult to find that stress point is had an effect, taking-up process wastes time and energy, or even can also be by
Impressed current anode is broken in undue force, influences the normal operation of sea water service system.
Therefore, in order to convenient effective taking-up impressed current anode, need badly and develop a kind of impressed current anode withdrawing device, can
Impressed current anode is taken out rapidly in the case where not influenceing sea water service system.
Utility model content
The purpose of this utility model is to take out impressed current anode rapidly, have developed a sleeve clamp, can control auxiliary
The stress of anode takes out impressed current anode within the shortest time.
What the utility model was realized in：
A kind of nuclear power plant impressed current anode withdrawing device, including spanner, circular sleeve support, nut, card base, power transmission shaft and
Gear structure；The position of spanner in the inner part is flexibly connected with the upper end of circular sleeve support；The inner side termination of spanner and gear knot
Structure is fixedly connected；Engaged with power transmission shaft the inner side of gear structure；Nut is fixed on the lower end of power transmission shaft, positioned at circular sleeve support
Inside；Card base is arranged on the lower end of circular sleeve support.
The generally hollow truncated cone of circular sleeve support as described above, lower end are big end, and upper end is small end, upper,
Lower ending opening.
Spanner as described above shares two, is symmetrical arranged along circular sleeve support axis.
Power transmission shaft generally cylindrical rod as described above, top are provided with multiple annular protrusions along its length, use
It is meshed in gear structure；The lower end of power transmission shaft is located at circular sleeve internal stent.
Card base shares multiple as described above, is stuck on the bolt hole at impressed current anode sleeve upper flange.
Spanner, circular sleeve support, nut, card base, power transmission shaft and gear structure as described above use austenite not
Rust steel 304 is made.
The beneficial effects of the utility model are：
The threaded portion that the utility model is exposed by connecting impressed current anode, then fixes whole device using support,
Impressed current anode is extracted by pulling spanner.Due to the use of support, whole device becomes stable so that acts on impressed current anode
Axial direction of the direction of upper power along impressed current anode.And spanner is effectively amplified power by leverage, it is more easy to take impressed current anode
Go out.
Brief description of the drawings
Fig. 1 is the mounting structure schematic diagram of impressed current anode；
Fig. 2 is a kind of structural representation of nuclear power plant impressed current anode withdrawing device of the present utility model；
Fig. 3 is Fig. 2 partial enlarged drawing；
Fig. 4 is a kind of fundamental diagram of nuclear power plant impressed current anode withdrawing device of the present utility model.
Wherein：1. spanner, 2. circular sleeve supports, 3. nuts, 4. card bases, 5. screw threads, 6. impressed current anodes, 7. bolts hole,
8. tube wall, 9. impressed current anode sleeves, 10. power transmission shafts, 11. gear structures.
Embodiment
The utility model is described further with reference to the accompanying drawings and examples.
As shown in Figures 2 and 3, a kind of nuclear power plant impressed current anode withdrawing device, including spanner 1, circular sleeve support 2,
Nut 3, card base 4, power transmission shaft 10 and gear structure 11.The position of spanner 1 in the inner part and the upper end activity of circular sleeve support 2 connect
Connect.The inner side termination of spanner 1 is fixedly connected with gear structure 11.Engaged with power transmission shaft 10 inner side of gear structure 11.Nut 3 is solid
The lower end of power transmission shaft 10 is scheduled on, positioned at the inside of circular sleeve support 2.Card base 4 is arranged on the lower end of circular sleeve support 2.
The generally hollow truncated cone of circular sleeve support 2, lower end are big end, and upper end is small end, upper and lower end opening.
Spanner 1 shares two, is set along the axisymmetrical of circular sleeve support 2.
The generally cylindrical rod of power transmission shaft 10, top are provided with multiple annular protrusions along its length, are used for and gear
Structure 11 is meshed.The lower end of power transmission shaft 10 is located inside circular sleeve support 2.
Card base 4 shares multiple, is stuck on the bolt hole 7 at the upper flange of impressed current anode sleeve 9.
In the present embodiment, spanner 1, circular sleeve support 2, nut 3, card base 4, power transmission shaft 10 and gear structure 11 are adopted
It is made with austenitic stainless steel 304.
Operation principle of the present utility model is as follows：
As shown in figure 4, using when first by withdrawing device circular sleeve support 2 card base 4 insertion be fixed on auxiliary sun
On bolt hole 7 at the upper flange of pole sleeve 9.Then rotating nuts 3, match somebody with somebody the screw thread 5 of withdrawing device nut 3 and impressed current anode 6
Conjunction is tightened.Tighten rear both hands while pull spanner 1, the power on spanner 1 passes to power transmission shaft 10, power transmission shaft by gear structure 11
10 upward liftings are so as to driving impressed current anode 6 to take out whole impressed current anode 6 out of tube wall 8.
Implementation of the present utility model is explained in detail above in conjunction with embodiment, but the utility model and unlimited
In above-described embodiment, in those of ordinary skill in the art's possessed knowledge, the utility model can also not departed from
Various changes can be made on the premise of objective.The content not being described in detail in the utility model specification can use existing skill
Art.
Claims (6)
- A kind of 1. nuclear power plant impressed current anode withdrawing device, it is characterised in that：It include spanner (1), circular sleeve support (2), Nut (3), card base (4), power transmission shaft (10) and gear structure (11)；The position of spanner (1) in the inner part and circular sleeve support (2) Upper end be flexibly connected；The inner side termination of spanner (1) is fixedly connected with gear structure (11)；The inner side of gear structure (11) and biography Moving axis (10) engages；Nut (3) is fixed on the lower end of power transmission shaft (10), positioned at the inside of circular sleeve support (2)；Card base (4) It is arranged on the lower end of circular sleeve support (2).
- 2. nuclear power plant according to claim 1 impressed current anode withdrawing device, it is characterised in that：Described circular sleeve branch The generally hollow truncated cone of frame (2), lower end are big end, and upper end is small end, upper and lower end opening.
- 3. nuclear power plant according to claim 1 impressed current anode withdrawing device, it is characterised in that：Described spanner (1) is altogether There are two, set along circular sleeve support (2) axisymmetrical.
- 4. nuclear power plant according to claim 1 impressed current anode withdrawing device, it is characterised in that：Described power transmission shaft (10) Generally cylindrical rod, top are provided with multiple annular protrusions along its length, for being meshed with gear structure (11)；Pass It is internal that the lower end of moving axis (10) is located at circular sleeve support (2).
- 5. nuclear power plant according to claim 1 impressed current anode withdrawing device, it is characterised in that：Described card base (4) is altogether Have multiple, be stuck on the bolt hole (7) at impressed current anode sleeve (9) upper flange.
- 6. nuclear power plant according to claim 1 impressed current anode withdrawing device, it is characterised in that：Described spanner (1), circle Shape bush support (2), nut (3), card base (4), power transmission shaft (10) and gear structure (11) are made using austenitic stainless steel 304 Form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720545924.9U CN206780294U (en) | 2017-05-17 | 2017-05-17 | A kind of nuclear power plant impressed current anode withdrawing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720545924.9U CN206780294U (en) | 2017-05-17 | 2017-05-17 | A kind of nuclear power plant impressed current anode withdrawing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206780294U true CN206780294U (en) | 2017-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720545924.9U Active CN206780294U (en) | 2017-05-17 | 2017-05-17 | A kind of nuclear power plant impressed current anode withdrawing device |
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| Country | Link |
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| CN (1) | CN206780294U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107020595A (en) * | 2017-05-17 | 2017-08-08 | 中核核电运行管理有限公司 | A kind of nuclear power plant impressed current anode withdrawing device |
-
2017
- 2017-05-17 CN CN201720545924.9U patent/CN206780294U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107020595A (en) * | 2017-05-17 | 2017-08-08 | 中核核电运行管理有限公司 | A kind of nuclear power plant impressed current anode withdrawing device |
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