CN202650572U - Flexible sealing material change water jacket for nuclear - Google Patents
Flexible sealing material change water jacket for nuclear Download PDFInfo
- Publication number
- CN202650572U CN202650572U CN201220267497XU CN201220267497U CN202650572U CN 202650572 U CN202650572 U CN 202650572U CN 201220267497X U CN201220267497X U CN 201220267497XU CN 201220267497 U CN201220267497 U CN 201220267497U CN 202650572 U CN202650572 U CN 202650572U
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- CN
- China
- Prior art keywords
- water jacket
- nuclear
- flexible sealing
- flange
- conduit
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- 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.)
- Expired - Lifetime
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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 relates to the technical field of nuclear power technology reactor overhauling and dismounting and particularly discloses a flexible sealing material change water jacket for nuclear. The flexible sealing material change water jacket comprises a corrugated pipe compensator, wherein an upper flange is arranged above the corrugated pipe compensator, the lower end of the corrugated pipe compensator is provided with a tube body, the lower end of the tube body is provided with a lower flange, the lower surface of the upper flange is provided with a groove passage, an O-shaped ring is arranged in the groove passage, the lower surface of the lower flange is provided with a groove passage, and an O-shaped ring is arranged in the groove passage. The corrugated compensator forms the pressure boundary, the heat expansion and the cold retraction of the material change water jacket per se in high-temperature environment, and the foundation settlement, the installation error and the displacement compensation between installation surfaces at two ends of the material change water jacket are compensated, a jacket is arranged in the corrugated compensator, the hooking between a hoisting component and a material change water jacket can be prevented, and the safety and the reliability of equipment are ensured.
Description
Technical field
The utility model belongs to nuclear power technology reactor maintenance and handling technique field, is specifically related to a kind of sealing water jacket that reloads.
Background technology
During the nuclear power plant reactor maintenance is reloaded, after the top cover of reactor pressure vessel dismounting, refuelling pool need to be communicated with half-headed reactor pressure vessel inner chamber, so that each member and fuel assembly lift out pressure vessel in will piling, simultaneously be full of water at refuelling pool and half-headed reactor pressure vessel inner chamber, water layer can be piled up to half-headed reaction the effect of radiation-screening, but must guarantee that shielding water layer does not reveal between refuelling pool and pressure vessel this moment.Therefore the device that uses during needing that design is a kind of and reloading for the reactor maintenance, it can be communicated with refuelling pool with half-headed reactor pressure vessel, when the hoisting passage of interior each member of heap and fuel assembly is provided, can guarantee that again shielding water layer does not reveal.
Because the problems such as thermal compensation under the sedimentation of on-the-spot erecting equipment existence foundation, alignment error, bit shift compensation and the hot environment require this equipment to have good adaptive performance to reactor pressure vessel and refuelling pool.
Summary of the invention
The purpose of this utility model is to provide a kind of and can forms the hoisting passage of each member and fuel assembly in the heap and can guarantee again to shield nuclear that water layer do not reveal with the flexible sealing water jacket that reloads, and the problems such as its alignment error of existing during the scene is installed and temperature variation compensate simultaneously.
The realization the technical solution of the utility model is as follows:
A kind of nuclear is with the flexible sealing water jacket that reloads, and it comprises corrugated expansion joint, and its top is provided with upper flange, and the lower end is cylindrical shell, and the lower end of described cylindrical shell is provided with lower flange, and the lower surface of described upper flange is provided with conduit, is provided with O shape circle in the conduit; The lower surface of lower flange is provided with conduit, is provided with O shape circle in the conduit.
In above-mentioned nuclear reloaded water jacket with flexible sealing: be provided with sheath in the described corrugated expansion joint, this sheath upper end was fixedly installed on the FlexbleJoint inwall, and the sheath lower end is spigot surface.
In above-mentioned nuclear reloads water jacket with flexible sealing: be provided with step in the lower surface of above-mentioned upper flange and lower flange, the outside of conduit.
In above-mentioned nuclear reloaded water jacket with flexible sealing: the conduit of described upper lower flange lower surface was the double flute road.
In above-mentioned nuclear reloaded water jacket with flexible sealing: described conduit cross section was dovetail groove.
In above-mentioned nuclear reloaded water jacket with flexible sealing: the cross section of described O shape circle was circular, square, wedge shape or dish, and the section form in double flute road changes with the cross sectional shape that O shape is enclosed.
The obtained beneficial effect of the utility model is as follows: because FlexbleJoint consists of the pressure boundary, it compensates the expanding with heat and contract with cold of water jacket itself of reloading under foundation settlement, alignment error, bit shift compensation and the hot environment of reloading between the installed surface of water jacket two ends; Further, in FlexbleJoint, arrange sheath, can prevent lifting components and reload water jacket generation hook, guarantee the safe and reliable of equipment; Twice O shape circle is installed on upper flange, the lower flange sealing surface is consisted of double-layer seal, so that sealing effectiveness strengthens; The sealing surface outer processing step of upper flange and lower flange is installed the reservation certain distance to screw, can guarantee that pretension bolt effectively compresses O shape circle and realizes sealing; The conduit cross section is processed as dovetail groove, guarantees that the installation of O shape circle is reliable, be difficult for skidding off conduit.
Present technique can be used for advanced nuclear power heap type, particularly take heat supply as main middle-size and small-size power reactor type, can improve security and the economy of nuclear energy.
Description of drawings
Fig. 1 for nuclear with the flexible sealing jacket structure for water schematic diagram that reloads;
Fig. 2 is upper flange and containment scheme of installation;
Fig. 3 is the connection diagram of FlexbleJoint and the sheath of Fig. 1;
Among the figure: 1. lifting bolt; 2. upper flange; 3. FlexbleJoint; 4. sheath; 5. cylindrical shell; 6. lower flange; 7.O shape circle; 8. pretension bolt; 9. containment; 10. pressure vessel; 11. conduit; 12. step.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in detail.
Such as Fig. 1, Fig. 2 and shown in Figure 3, FlexbleJoint 3 is that an outer wall is with undulatory pipe, the sheath 4 that its inner installation stainless steel is made, these sheath 4 upper ends and the welding of FlexbleJoint 3 inwalls, spigot surface is processed in sheath 3 lower ends, therefore sheath 4 is installed in the FlexbleJoint 3, can guarantee that FlexbleJoint 3 carries out position compensation in all directions.
The outer, upper end of above-mentioned FlexbleJoint 3 is upper flange 2, is installed with lifting bolt 1 on the upper flange 2, by pretension bolt 8 upper flange 2 and containment 9 is fixedly mounted.Be cylindrical shell 5 in the lower end of FlexbleJoint 3.The outer, lower end of above-mentioned cylindrical shell 5 is lower flange 6, by pretension bolt 8 lower flange 6 is fixedly connected with pressure vessel 10.
The mounting means of explanation flange as an example of upper flange 2 example as shown in Figure 2, is processed with two circular conduits at the sealing surface with containment 9 of upper flange 2, forms double flute road 11, places O shape circle 7 in each circular trough.On the sealing surface of lower flange 6 and pressure vessel 10, also be processed with the Crossed Circle conduit equally, the inner O shape circle 7 of placing.
For so that flange further compresses O shape circle 7, guarantee that the sealing of flange is installed, be processed with step 12 in the outside in the sealing surface double flute road 11 of upper lower flange.
The cross section of above-mentioned O shape circle 7 can be various ways, such as circular, square, wedge shape, dish etc., and the section form of conduit, also the cross sectional shape for O shape circle 7 changes.
During the reactor refuling, the water jacket that will reload is installed between reactor pressure vessel and the containment, to the water jacket inner filling water that reloads, the reload positiver sealing at water jacket flange position of dependence, with this reactor pressure vessel and refuelling pool are communicated with, form hoisting passage, for each member, fuel assembly and associated component in the loading and unloading heap; And utilize the water layer in the water jacket that reloads that half-headed reactor is shielded.
Adopt FlexbleJoint 3 to consist of the pressure boundary, it compensates the expanding with heat and contract with cold of water jacket itself of reloading under foundation settlement, alignment error, bit shift compensation and the hot environment of reloading between the installed surface of water jacket two ends.The inwall of FlexbleJoint 3 is provided with sheath 4, can prevent lifting components and reload water jacket generation hook.Establish twice O shape circle 7 in upper flange 2 and lower flange 6 sealing surfaces and consist of double-layer seal, the cross section of O shape circle 7 can be various ways, such as circular, square, wedge shape, dish etc.Its body adopts radiation-resistant elastomeric material manufacturing, can adapt to the working environment of intense radiation.The sealing surface of upper flange 2 and lower flange 6 adopts step, can guarantee that pretension bolt effectively compresses O shape circle 7 and realizes sealing.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.If these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (6)
1. a nuclear is with the flexible sealing water jacket that reloads, it is characterized in that: it comprises corrugated expansion joint (3), its top is provided with upper flange (2), the lower end is cylindrical shell (5), the lower end of described cylindrical shell (5) is provided with lower flange (6), the lower surface of described upper flange (2) is provided with conduit, is provided with O shape circle (7) in the conduit; The lower surface of lower flange (6) is provided with conduit, is provided with O shape circle (7) in the conduit.
2. nuclear as claimed in claim 1 is with the flexible sealing water jacket that reloads, and it is characterized in that: be provided with sheath (4) in the described corrugated expansion joint (3), this sheath (4) upper end is fixedly installed on FlexbleJoint (3) inwall, and sheath (4) lower end is spigot surface.
3. nuclear as claimed in claim 1 or 2 is characterized in that: be provided with step (12) in the lower surface of above-mentioned upper flange (2) and lower flange (6), the outside of conduit with the flexible sealing water jacket that reloads.
4. nuclear as claimed in claim 1 or 2 is with the flexible sealing water jacket that reloads, and it is characterized in that: the conduit of described upper lower flange lower surface is double flute road (11).
5. nuclear as claimed in claim 1 or 2 is with the flexible sealing water jacket that reloads, and it is characterized in that: described conduit cross section is dovetail groove.
6. nuclear as claimed in claim 1 or 2 is characterized in that with the flexible sealing water jacket that reloads: the cross section of described O shape circle (7) is circular, square, wedge shape or dish, and the section form of double flute road (11) changes with the cross sectional shape that O shape is enclosed (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220267497XU CN202650572U (en) | 2012-06-08 | 2012-06-08 | Flexible sealing material change water jacket for nuclear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220267497XU CN202650572U (en) | 2012-06-08 | 2012-06-08 | Flexible sealing material change water jacket for nuclear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202650572U true CN202650572U (en) | 2013-01-02 |
Family
ID=47419640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220267497XU Expired - Lifetime CN202650572U (en) | 2012-06-08 | 2012-06-08 | Flexible sealing material change water jacket for nuclear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202650572U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107767980A (en) * | 2016-08-19 | 2018-03-06 | 中国辐射防护研究院 | A kind of long-range Water pipeline radiation focus screening arrangement |
-
2012
- 2012-06-08 CN CN201220267497XU patent/CN202650572U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107767980A (en) * | 2016-08-19 | 2018-03-06 | 中国辐射防护研究院 | A kind of long-range Water pipeline radiation focus screening arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |
|
| CX01 | Expiry of patent term |