CN207337941U - Complex phase penetration piece for nuclear power station - Google Patents
Complex phase penetration piece for nuclear power station Download PDFInfo
- Publication number
- CN207337941U CN207337941U CN201720585759.XU CN201720585759U CN207337941U CN 207337941 U CN207337941 U CN 207337941U CN 201720585759 U CN201720585759 U CN 201720585759U CN 207337941 U CN207337941 U CN 207337941U
- Authority
- CN
- China
- Prior art keywords
- penetration piece
- seal cavity
- bellows
- air
- nuclear power
- 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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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The utility model provides the complex phase penetration piece for nuclear power station, is provided with air-tightness detection device in penetration piece main body, the air-tightness detection device includes：The bellows of semi-hermetic, seal cavity, the seal cavity are fixed on penetration piece, and bellows one end is openend, and openend is through penetration piece and is fixed on penetration piece body interior, and the other end is the movable end of closing, and activity is suspended in seal cavity；The gas identical with penetration piece internal gas is pre-charged with inside seal cavity, sealing propertytest is carried out to the penetration piece of double containment using air-tightness detection device, when leaking air between the double casing of penetration piece, metal bellows movable end is compressed to penetration piece position, can be by the leakproofness of observing the position of metal bellows movable end to carry out between double containment, sealing detection that present patent application can be used for after the completion of penetration piece welding, can also be used for detection in physical device operational process, simple in structure, cost is low and highly practical.
Description
Technical field
Nuclear power flange is the utility model is related to, is particularly used for the complex phase penetration piece of nuclear power station.
Background technology
To ensure the power supply of electrical equipment in containment vessel, control, protection, core measurement, illumination, instrument, communication etc.
The transmission of signal, cable requirement through special air-tightness containment, electrical penetration be exactly in order to realize these functions into
The device of cable connection inside and outside row containment.
Utility model content
The purpose of this utility model is to provide the complex phase penetration piece for nuclear power station, the prison of penetration piece sealing performance is realized
Survey, the utility model is to solve above-mentioned technical problem by following technical proposals：For the complex phase penetration piece of nuclear power station, run through
Air-tightness detection device is installed, the air-tightness detection device includes in part main body：Bellows, the annular seal space of semi-hermetic
Body, the seal cavity are fixed on penetration piece, and bellows one end is openend, and openend, which passes through penetration piece and is fixed on, to be run through
Part body interior, the other end are the movable end of closing, and activity is suspended in seal cavity；It is pre-charged with and runs through inside seal cavity
The identical gas of part internal gas.
Preferably, metal bellows can be selected in the bellows, and the bellows-welding on penetration piece inner wall, pass through by realization
Wear the separate and leakproofness of part main body and seal cavity.
Preferably, the glass material of transparent material can be selected in the seal cavity, can be encapsulated in penetration piece by fluid sealant glue
On outer wall.
Preferably, penetration piece can be the penetration piece of double containment, and air-tightness detection device is mountable to outer layer containment
On, also it is mountable on the penetration piece disk body between ectonexine containment, for detecting the leakproofness between ectonexine containment.
The beneficial effects of the utility model：Penetration piece of the utility model using air-tightness detection device to double containment
Sealing propertytest is carried out, being full of in seal cavity has identical gas between outer layer containment, will be close using metal bellows
Envelope chamber isolated with penetration piece, when leaking air between the double casing of penetration piece, metal bellows movable end to through
Part position is compressed, can be by the leakproofness of observing the position of metal bellows movable end to carry out between double containment, this is specially
Sealing detection that profit application can be used for after the completion of penetration piece welding, can also be used for detection in physical device operational process, structure
Simply, cost is low and highly practical.
Brief description of the drawings
Fig. 1 is the structure chart of the utility model, is specifically internal view；
Fig. 2 is the structure diagram of another embodiment of the utility model；
In figure：1st, penetration piece body；2nd, outer layer containment；3rd, primary containment；
4th, seal cavity；5th, bellows.
Embodiment
It is specific embodiment of the utility model and with reference to attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1, the complex phase penetration piece for nuclear power station, penetration piece is the penetration piece of double containment, penetration piece master
Air-tightness detection device is installed on body, is specifically to open up one on the penetration piece disk body between ectonexine containment to run through
Hole, air-tightness detection device realize the detection to air-tightness between ectonexine containment by the through hole.
The air-tightness detection device includes：The bellows of semi-hermetic, seal cavity, the seal cavity, which is fixed on, passes through
Wear on part, bellows one end is openend, and penetration piece body interior is fixed in openend after passing through the impenetrating mouth of penetration piece, another
The movable end for closing is held, activity is suspended in seal cavity, and seal cavity and penetration piece are kept apart；It is pre- inside seal cavity
Filled with the gas identical with penetration piece internal gas, when there is not leakage between penetration piece double containment, bellows both sides
Kept when pressure is identical opposing stationary；When causing pressure change small when being leaked between penetration piece double containment, bellows
Movable end pressure is higher than between double containment, and bellows is moved by the pressure of seal cavity to penetration piece inside.
Preferably, metal bellows can be selected in the bellows, and the bellows-welding on penetration piece inner wall, pass through by realization
The separate and leakproofness of part main body and seal cavity is worn, bellows openend is connected with penetration piece, the two internal gas
Pressure is identical, and penetration piece movable end is closing, ensure that bellows with sealing seal cavity quality inspection room independence, when through
Pressure is caused to become hour when being leaked between part double containment, since penetration piece is fixed in the openend of closed bellows
Inner wall, be not in that bellows is entered in penetration piece by impact completely.
Preferably, the glass material of transparent material can be selected in the seal cavity, can be encapsulated in penetration piece by fluid sealant glue
On outer wall, scale is may be provided with the seal cavity, the position of movable end is relative zero when bellows is opposing stationary, is being passed through
To wear when non-hermetic state is entered inside part, bellows is moved into penetration piece, its movable end is moved from relative to dead-center position,
Whether leaked by the change prompting of scale residing for movable end.
As shown in Fig. 2, penetration piece can be the penetration piece of double containment, passing through between ectonexine containment is also mountable to
Wear on part disk body, for detecting the leakproofness between ectonexine containment.
Mode that the above is only the preferred embodiment of the present invention, it is impossible to protected with this to limit the utility model
Scope, the change and replacement of any unsubstantiality that those skilled in the art is done on the basis of the utility model belong to
The utility model scope claimed.
Claims (4)
1. the complex phase penetration piece for nuclear power station, it is characterised in that：Air-tightness detection device is installed in penetration piece main body, it is described
Air-tightness detection device includes：The bellows of semi-hermetic, seal cavity, the seal cavity are fixed on penetration piece, ripple
Pipe one end is openend, and openend is through penetration piece and is fixed on penetration piece body interior, and the other end is the movable end of closing, is lived
It is dynamic to be suspended in seal cavity；The gas identical with penetration piece internal gas is pre-charged with inside seal cavity.
2. the complex phase penetration piece according to claim 1 for nuclear power station, it is characterised in that：The bellows is preferably with gold
Belong to bellows, the bellows-welding realizes the separate and close of penetration piece main body and seal cavity on penetration piece inner wall
Feng Xing.
3. the complex phase penetration piece according to claim 2 for nuclear power station, it is characterised in that：The seal cavity is preferably used
The glass material of transparent material, is encapsulated on penetration piece outer wall by fluid sealant glue.
4. the complex phase penetration piece according to claim 3 for nuclear power station, it is characterised in that：Penetration piece can be double layer security
The penetration piece of shell, air-tightness detection device are installed on outer layer containment, or are installed on running through between ectonexine containment
On part disk body, for detecting the leakproofness between ectonexine containment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720585759.XU CN207337941U (en) | 2017-05-24 | 2017-05-24 | Complex phase penetration piece for nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720585759.XU CN207337941U (en) | 2017-05-24 | 2017-05-24 | Complex phase penetration piece for nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207337941U true CN207337941U (en) | 2018-05-08 |
Family
ID=62375778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720585759.XU Active CN207337941U (en) | 2017-05-24 | 2017-05-24 | Complex phase penetration piece for nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207337941U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737244A (en) * | 2019-02-15 | 2019-05-10 | 中广核工程有限公司 | Nuclear power plant's penetration piece end socket and its penetration piece structure |
-
2017
- 2017-05-24 CN CN201720585759.XU patent/CN207337941U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737244A (en) * | 2019-02-15 | 2019-05-10 | 中广核工程有限公司 | Nuclear power plant's penetration piece end socket and its penetration piece structure |
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