CN202905193U - Sealing connection structure for pressurized water reactor nuclear power station hanging basket and pressure container nozzle - Google Patents
Sealing connection structure for pressurized water reactor nuclear power station hanging basket and pressure container nozzle Download PDFInfo
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- CN202905193U CN202905193U CN2012206460768U CN201220646076U CN202905193U CN 202905193 U CN202905193 U CN 202905193U CN 2012206460768 U CN2012206460768 U CN 2012206460768U CN 201220646076 U CN201220646076 U CN 201220646076U CN 202905193 U CN202905193 U CN 202905193U
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- hanging basket
- nuclear power
- pressure vessel
- pressure container
- water reactor
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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
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Abstract
The utility model discloses a sealing connection structure for a pressurized water reactor nuclear power station hanging basket and a pressure container nozzle, and belongs to the nuclear power station part sealing device range. The contact end surfaces of a hanging basket outlet nozzle and a pressure container outlet nozzle are respectively welded with a flange plate; the corresponding positions on the surfaces of the two flange plates are respectively provided with a round groove; an O-shaped sealing ring is arranged in one groove; and the height of the O-shaped sealing ring is more than distance between the hanging basket outlet nozzle and the pressure container outlet nozzle, so that the hanging basket outlet nozzle and the pressure container outlet nozzle are effectively pressed and sealed by the sealing ring. According to the sealing connection structure for the pressurized water reactor nuclear power station hanging basket and the pressure container nozzle, the hanging basket outlet nozzle and the pressure container outlet nozzle of the pressurized water reactor nuclear power station are in effective sealing connection, the flow of coolant which directly flows to the pressure container outlet nozzle from a gap between the inner wall of the pressure container and the hanging basket outlet nozzle without being heated by a reactor core, is lowered, the cooling effect is improved, the sealing connection structure is simple, the integral construction of the hanging basket and the pressure container is not changed, and the hanging basket still can be successfully hung and hung out.
Description
Technical field
The utility model belongs to nuclear power station parts packoff and technical scope, and particularly the Hermetical connecting structure of a kind of pressurized-water reactor nuclear power plant hanging basket and pressure vessel nozzle, especially hanging basket export being tightly connected of ozzle and pressure vessel outlet ozzle.
Background technology
At present, the needs that pressurized-water reactor nuclear power plant hangs out when guaranteeing that hanging basket need keep in repair smoothly, the connected mode that hanging basket outlet ozzle directly docks with the employing of pressure vessel outlet ozzle, and welding or other effectively are tightly connected.Under normal operation, when a circuit cools agent is flowed in pressure vessel, the coolant flow that directly flows to the pressure vessel outlet ozzle from the gap between pressure vessel inwall and hanging basket outlet ozzle accounts for greatly 1% of overall coolant flow rate.This part cooling medium directly flows out without the reactor core heating, affects generating efficiency and the economic benefit of nuclear power station, equipment has been produced to harmful effect simultaneously.
The utility model content
The purpose of this utility model is to affect the generating efficiency of nuclear power station and the deficiency of economic benefit for current pressurized-water reactor nuclear power plant hanging basket outlet ozzle without effective sealing is connected with the pressure vessel outlet ozzle, the Hermetical connecting structure of a kind of pressurized-water reactor nuclear power plant hanging basket and pressure vessel nozzle is provided, it is characterized in that, all weld a ring flange at hanging basket outlet ozzle and contacting on end face of pressure vessel outlet ozzle, on the flange surface of the two end, corresponding position is respectively opened circular groove one, place O type sealing ring in groove, the height of O type sealing ring is greater than the distance between hanging basket outlet ozzle and pressure vessel nozzle, make hanging basket outlet ozzle and pressure vessel outlet ozzle by the effective press seal of sealing ring quilt.
Described two flange surfaces are the inclined-plane that is the θ angle with horizontal direction.
Described O type sealing ring is split ring, and a built-in volute spring.
Soft metal or the rubber of the energy pressure resistant container working temperature that described sealing ring is not opening.
Described θ looks at angle real space size between pressure vessel and hanging basket and is decided to be 5-10
.。
Useful result of the present utility model is, this syndeton is to connect without any bolt, elasticity by dead weight of basket and O type sealing ring provides the sealing snap-in force, realize that pressurized-water reactor nuclear power plant hanging basket outlet ozzle and pressure vessel outlet ozzle place effectively are tightly connected, minimizing directly flows to the coolant flow of pressure vessel outlet ozzle from the gap between pressure vessel inwall and hanging basket outlet ozzle without the reactor core heating, improve cooling effect, simple in structure, to hanging basket and pressure vessel unitary construction without change, and can not affect the smooth lifting of hanging basket and hang out, and install, dismantle all very convenient.
The accompanying drawing explanation
Fig. 1 is existing pressurized-water reactor nuclear power plant core barrel and pressure vessel connection layout.
Fig. 2 is pressurized-water reactor nuclear power plant hanging basket outlet ozzle and the effective Hermetical connecting structure schematic diagram in pressure vessel outlet ozzle place.
Fig. 3 is built-in helical spring opening O type seal ring structure schematic diagram.
The A-A diagrammatic cross-section that Fig. 4 is Fig. 3.
In figure, being 1. hanging basket outlet ozzles, is 2. pressure vessel outlet ozzles, is 3. O type sealing rings, 4. ring flange, 5. groove, 6-volute spring, 7-silver coating.
Embodiment
The utility model provides the Hermetical connecting structure of a kind of pressurized-water reactor nuclear power plant hanging basket and pressure vessel nozzle.Below in conjunction with drawings and Examples, the utility model is further illustrated.
Figure 2 shows that pressurized-water reactor nuclear power plant hanging basket outlet ozzle and the effective Hermetical connecting structure schematic diagram in pressure vessel outlet ozzle place.
In figure, the pressurized-water reactor nuclear power plant hanging basket is that the end face that contacts that at first hanging basket is exported to ozzle 1 and pressure vessel outlet ozzle 2 makes plane into the Hermetical connecting structure of pressure vessel nozzle, and all weld a ring flange 4 in the two end, on the flange surface of hanging basket outlet ozzle 1 and the end of pressure vessel outlet ozzle 2 corresponding position respectively open together with circular or square groove 5, wherein, two flange surfaces are the inclined-plane that is the θ angle with horizontal direction.θ looks at angle real space size between pressure vessel and hanging basket and is decided to be 5-10
., the present embodiment elects 8 as
.。The interior placement of groove 5 O type sealing ring 3, this O type sealing ring is split ring, and a built-in volute spring 6, and at O type sealing ring 3 outer surface plating one deck silver 7(as shown in Figure 3,4); Soft metal or the rubber of the energy pressure resistant container working temperature that perhaps O type sealing ring is not opening.
During lifting, in advance O type sealing ring 3 is fixed on the flange surface of hanging basket outlet ozzle 1 in groove 5, hanging basket is lifted in the entrance pressure force container, because the height of O type sealing ring is greater than the distance between hanging basket outlet ozzle and pressure vessel outlet ozzle, between hanging basket outlet ozzle and pressure vessel outlet ozzle, without any bolt, be connected, elasticity by dead weight of basket and O type sealing ring provides the sealing snap-in force, realizes that pressurized-water reactor nuclear power plant hanging basket outlet ozzle and pressure vessel outlet ozzle place effectively are tightly connected; When hanging basket needs repairing, it vertically to be lifted up into, hang out pressure vessel and get final product, this syndeton is lifted up into smoothly, is hung out without impact hanging basket.
Claims (5)
1. the Hermetical connecting structure of a pressurized-water reactor nuclear power plant hanging basket and pressure vessel nozzle, it is characterized in that, all weld a ring flange at hanging basket outlet ozzle and contacting on end face of pressure vessel outlet ozzle, on the flange surface of the two end, corresponding position is respectively opened circular groove one, place O type sealing ring in groove, the height of O type sealing ring is greater than the distance between hanging basket outlet ozzle and pressure vessel nozzle, makes hanging basket outlet ozzle and pressure vessel outlet ozzle by the effective press seal of sealing ring quilt.
2. the Hermetical connecting structure of pressurized-water reactor nuclear power plant hanging basket and pressure vessel nozzle according to claim 1, is characterized in that, described two flange surfaces are the inclined-plane that is the θ angle with horizontal direction.
3. the Hermetical connecting structure of pressurized-water reactor nuclear power plant hanging basket and pressure vessel nozzle according to claim 1, is characterized in that, described O type sealing ring is split ring, and a built-in volute spring.
4. the Hermetical connecting structure of pressurized-water reactor nuclear power plant hanging basket and pressure vessel nozzle according to claim 1, is characterized in that, described sealing ring be not opening can the pressure resistant container working temperature soft metal or rubber.
5. the Hermetical connecting structure of pressurized-water reactor nuclear power plant hanging basket and pressure vessel nozzle according to claim 2, is characterized in that, described θ angle, depending on real space size between pressure vessel and hanging basket, is elected 5-10 as
.。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206460768U CN202905193U (en) | 2012-11-29 | 2012-11-29 | Sealing connection structure for pressurized water reactor nuclear power station hanging basket and pressure container nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206460768U CN202905193U (en) | 2012-11-29 | 2012-11-29 | Sealing connection structure for pressurized water reactor nuclear power station hanging basket and pressure container nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202905193U true CN202905193U (en) | 2013-04-24 |
Family
ID=48125832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206460768U Expired - Fee Related CN202905193U (en) | 2012-11-29 | 2012-11-29 | Sealing connection structure for pressurized water reactor nuclear power station hanging basket and pressure container nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202905193U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106935283A (en) * | 2015-11-16 | 2017-07-07 | 通用电气-日立核能美国有限责任公司 | Nuclear reactor stream sealing system and seal |
| CN108766594A (en) * | 2018-07-20 | 2018-11-06 | 中广核研究院有限公司 | A kind of novel reaction heap hanging basket outlet tube seal structure |
| CN109102909A (en) * | 2018-07-20 | 2018-12-28 | 中广核研究院有限公司 | A kind of novel in-pile component sealing compressing structure |
| CN112349438A (en) * | 2020-11-06 | 2021-02-09 | 重庆大学 | Online monitoring method for sealing state of O-shaped sealing ring of nuclear reactor pressure vessel |
-
2012
- 2012-11-29 CN CN2012206460768U patent/CN202905193U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106935283A (en) * | 2015-11-16 | 2017-07-07 | 通用电气-日立核能美国有限责任公司 | Nuclear reactor stream sealing system and seal |
| CN108766594A (en) * | 2018-07-20 | 2018-11-06 | 中广核研究院有限公司 | A kind of novel reaction heap hanging basket outlet tube seal structure |
| CN109102909A (en) * | 2018-07-20 | 2018-12-28 | 中广核研究院有限公司 | A kind of novel in-pile component sealing compressing structure |
| CN112349438A (en) * | 2020-11-06 | 2021-02-09 | 重庆大学 | Online monitoring method for sealing state of O-shaped sealing ring of nuclear reactor pressure vessel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20171129 |