CN201306465Y - Up-loading ball valve of handling system for high temperature gas cooled reactor fuel at first nuclear level. - Google Patents
Up-loading ball valve of handling system for high temperature gas cooled reactor fuel at first nuclear level. Download PDFInfo
- Publication number
- CN201306465Y CN201306465Y CNU2008202187578U CN200820218757U CN201306465Y CN 201306465 Y CN201306465 Y CN 201306465Y CN U2008202187578 U CNU2008202187578 U CN U2008202187578U CN 200820218757 U CN200820218757 U CN 200820218757U CN 201306465 Y CN201306465 Y CN 201306465Y
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- China
- Prior art keywords
- valve
- valve seat
- ball valve
- high temperature
- handling system
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Abstract
The utility model provides an up-loading ball valve of the handling system for high temperature gas cooled reactor fuel at first nuclear level, solving the technical problems existing in a common fixed ball valve. The up-loading ball valve adopts an up-loading structure; a valve is formed by an electric drive device, a valve rod, a ball body and such core components; the valve rod adopts a multilayer of shaft sealing structure; the opening and closing of the ball body adopts a double positioning structure; a valve seat is designed to be a telescopic type; and an adjusting cushion near the valve seat is capable of rotating to the projection part thereof and is embedded in the vacant position at the shoulder part of the valve seat, and when the valve seat returns back from the ball body, the ball body can be taken out from the valve body. A sealing pair is in a sealing structure; a seal pre-tightening specific pressure consists of a plurality of cylindrically coiled compression springs which are arranged in a spring retaining ring and press on the shoulder part of the valve seat. The utility model can be disassembled, maintained on line conveniently, and the parts can be replaced conveniently too, and all inner parts of the valve can be replaced and maintained, thus ensuring that under helium gas condition, the outer leakage rate of the utility model is less than or equal to 1 * 10 minus 6 Pa.m3/s, and the inner leakage rate is less than or equal to 1* 10 minus 3Pa.m3/s.
Description
Technical field
The utility model relates to ball valve, is specifically related to dress formula high temperature gas cooled reactor fuel handling system ball valve on a kind of nuclear one-level.
Background technique
Conventional fixedly spherical ball valve is normally: be made of left valve barrel, bonnet, rotary valve rod, right valve barrel, spheroid and bottom flange..Bonnet is connected with left valve barrel by the valve gap bolt; Connect with valve body bolt, nut between left valve barrel and the right valve barrel.Rotary valve rod drives spheroid and rotates, the opening and closing of control ball valve.
Valve can not on-line maintenance and is changed internals; Inside and outside sealing and valve opening and closing Location accuracy can not satisfy the requirement of nuclear one-level high temperature gas cooled reactor fuel handling system to ball valve;
Summary of the invention
The utility model provides on a kind of nuclear one-level dress formula high temperature gas cooled reactor fuel handling system ball valve, and dress formula structure employings in, multilayer axle envelope and fixing spherical structure solve the fixedly technical problem of spherical ball valve existence of routine.
The technological scheme that the utility model is taked is: the ball valve first half is installed in the ball valve Lower Half from top to bottom; Its top of the ball valve first half is a valve gap, is Vidacare corp under the valve gap; Its bottom of ball valve Lower Half is telescopic valve seat, and spheroid embeds telescopic valve seat center, assembling import sealing configuration between spheroid and the telescopic valve seat; Valve rod leak-proof structure is installed on the top of telescopic valve seat.
Described valve rod leak-proof structure constitutes sealing mechanism jointly by sealing gasket, O type circle and last filler, following filler; In the middle of last filler, following filler, put into the filler spacer ring, draw neglected loading in the middle of being provided with and put, the medium (helium) that leaks into Stuffing box is put bleed off to the safety zone by drawing neglected loading; Pressing Gland on the last filler, compressing Gland with the belleville spring group.
It opens and closes the employing double positioning structure described spheroid, and except that being provided with in Vidacare corp the limit position part, the support place is provided with mechanical stop limiter-limiting board especially.
Described seat design is telescopic.The spacer adjacent with valve seat can turn to the room of its projection inserted valve seat shoulder, and valve seat can be recessed spheroid, can be with spheroid by taking out in the valve body.
The sealing pretension specific pressure of described inlet seal structure loads by being placed in and applies pressure to a plurality of cylindroid helicalcoil compression springs of valve seat shoulder in the spring retaining ring and form.
The utility model is owing to adopt the structure that goes up the dress formula, and seat design is telescopic, is convenient to online dismounting, maintenance and replacing fragile part, can carry out the replacing and the maintenance of the whole internals of valve; Because adopt multilayer axle envelope, fixedly spherical structure is guaranteed its leak rate≤1 * 10 of leaking under the helium condition
-6Pam
3/ s, internal leakage rate≤1 * 10
-3Pam
3/ s.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 examines dress formula high temperature gas cooled reactor fuel handling system ball-valve structure schematic representation on the one-level;
Fig. 2 valve rod leak-proof structure schematic representation;
Draw neglected loading interposed structure schematic representation in the middle of Fig. 3;
The telescopic valve seat construction schematic representation of Fig. 4;
Fig. 5 inlet seal structural representation.
Picture in picture mark explanation: Vidacare corp 1, valve rod 2, spheroid 3, belleville spring group 4, Gland 5, go up filler 6, filler spacer ring 7, down filler 8, centre draw that neglected loading puts 9, O type circle 10, sealing gasket 11, support 12, mechanical stop limiter-limiting board 13, spacer 14, valve seat 15, cylindroid helicalcoil compression spring 16, spring retaining ring 17.
Embodiment
The utility model is used for " ball bed modular high temperature gas cooled reactor nuclear power station " fuel handling system, guarantees that the pressure boundary is complete, atmosphere is switched and pipeline isolation during device maintenance.
As shown in Figure 1, the ball valve first half is installed in the ball valve Lower Half from top to bottom; Core component is Vidacare corp 1, valve rod 2, spheroid 3, and working method is: drive spheroid 3 rotations by Vidacare corp 1 actuate valve stem 2, thereby realize the opening and closing of valve.
As shown in Figure 2, valve rod leak-proof structure is guaranteed its leak rate≤1 * 10 of leaking under the helium condition
-6Pam
3/ s.Valve rod 2 is constituted sealing mechanism jointly and seals with last filler 6, following filler 8 by sealing gasket 11, O type circle 10, prevents that its generation when the work revolution from leaking outside; In the middle of last filler 6, following filler 8, put into filler spacer rings 7.Compress Gland 5 by belleville spring group 4,, make the filler impacting force keep substantially constant to guarantee the compressing required seal pressure of filler.
Spheroid adopts double positioning structure, and except that being provided with the limit position part in Vidacare corp 1 (see figure 1), support 12 places are provided with mechanical stop limiter-limiting board 13 especially.Double positioning structure can guarantee that the valve opening and closing positioning control is accurate, and valve passage is smooth without hindrance.
As shown in Figure 3, in the middle of filler spacer ring 7 is provided with, draw neglected loading and put 9, the medium that leaks into Stuffing box is put 9 to the safety zone bleed off by drawing neglected loading.
As shown in Figure 4, valve seat 15 is designed to telescopic, during maintenance, the spacer 14 adjacent with valve seat 15 turned to the room that its projection is embedded into valve seat 15 shoulders, valve seat 15 can be recessed spheroid 3, after spheroid 3 is taken out, can carry out the replacing and the maintenance of the whole internals of valve.
As shown in Figure 5, the sealing pretension specific pressure of inlet seal structure loads by being placed in and applies pressure to a plurality of cylindroid helicalcoil compression springs 16 of valve seat 15 shoulders in the spring retaining ring 17 and form, acting force of the spring is uniformly applied on the sealing pair, guarantees the required pretightening unit sealing load of valve sealing face.
Dress formula high temperature gas cooled reactor fuel handling system ball valve adopts multilayer axle envelope on the utility model nuclear one-level, and fixedly spherical structure is guaranteed its leak rate≤1 * 10 of leaking under the helium condition
-6Pam
3/ s internal leakage rate≤1 * 10
-3Pam
3/ s nuclear one-level ball valve.
Claims (7)
- Dress formula high temperature gas cooled reactor fuel handling system ball valve on 1 one kinds of nuclear one-levels, comprise core components compositions such as valve body, valve gap, Vidacare corp, valve rod, spheroid, valve seat, it is characterized in that: its top of the ball valve first half is a valve gap, is Vidacare corp under the valve gap; Its bottom of ball valve Lower Half is telescopic valve seat, and spheroid embeds telescopic valve seat center, assembling import sealing configuration between spheroid and the telescopic valve seat; Valve rod leak-proof structure is installed on the top of telescopic valve seat; The ball valve first half is installed in the ball valve Lower Half from top to bottom.
- 2 according to dress formula high temperature gas cooled reactor fuel handling system ball valve on the described nuclear one-level of claim 1, and it is characterized in that: valve rod leak-proof structure is to constitute sealing mechanism jointly by sealing gasket, O type circle and last filler, following filler.
- 3 according to dress formula high temperature gas cooled reactor fuel handling system ball valve on the described nuclear one-level of claim 2, it is characterized in that: put into the filler spacer ring in the middle of last filler, following filler, draw neglected loading in the middle of being provided with and put.
- 4 according to dress formula high temperature gas cooled reactor fuel handling system ball valve on the described nuclear one-level of claim 2, it is characterized in that: go up on the filler and pressing Gland, compress Gland with the belleville spring group.
- 5 according to dress formula high temperature gas cooled reactor fuel handling system ball valve on the described nuclear one-level of claim 1, it is characterized in that: it opens and closes the employing double positioning structure described spheroid, except that being provided with in Vidacare corp the limit position part, the support place is provided with mechanical stop limiter-limiting board especially.
- 6 according to dress formula high temperature gas cooled reactor fuel handling system ball valve on the described nuclear one-level of claim 1, it is characterized in that: described telescopic valve seat, the spacer adjacent with valve seat can turn to the room of its projection inserted valve seat shoulder, and valve seat can be recessed spheroid, can be with spheroid by taking out in the valve body.
- 7 according to dress formula high temperature gas cooled reactor fuel handling system ball valve on the described nuclear one-level of claim 1, it is characterized in that: the sealing pretension specific pressure of inlet seal structure loads by being placed in and applies pressure to a plurality of cylindroid helicalcoil compression springs of valve seat shoulder in the spring retaining ring and form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202187578U CN201306465Y (en) | 2008-10-30 | 2008-10-30 | Up-loading ball valve of handling system for high temperature gas cooled reactor fuel at first nuclear level. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202187578U CN201306465Y (en) | 2008-10-30 | 2008-10-30 | Up-loading ball valve of handling system for high temperature gas cooled reactor fuel at first nuclear level. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201306465Y true CN201306465Y (en) | 2009-09-09 |
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ID=41098930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202187578U Expired - Lifetime CN201306465Y (en) | 2008-10-30 | 2008-10-30 | Up-loading ball valve of handling system for high temperature gas cooled reactor fuel at first nuclear level. |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201306465Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094992A (en) * | 2011-03-18 | 2011-06-15 | 温州科赛阀门有限公司 | Fixed ball valve for top assembling |
| CN102606760A (en) * | 2010-12-29 | 2012-07-25 | 大连大高阀门有限公司 | Nuclear class I electric ball valve |
| CN102748497A (en) * | 2012-07-16 | 2012-10-24 | 圣博莱阀门有限公司 | Ultra-low temperature top-mounted type ball valve |
| CN103470803A (en) * | 2013-09-23 | 2013-12-25 | 清华大学 | Electric ball valve applied to high-temperature gas cooled reactor |
| CN105465475A (en) * | 2016-01-08 | 2016-04-06 | 朱志强 | Movable fit leakage controller for valve |
| CN107489780A (en) * | 2017-08-23 | 2017-12-19 | 上海伟伦阀门集团江苏有限公司 | A kind of HTHP upper-mounting type ball valve |
-
2008
- 2008-10-30 CN CNU2008202187578U patent/CN201306465Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606760A (en) * | 2010-12-29 | 2012-07-25 | 大连大高阀门有限公司 | Nuclear class I electric ball valve |
| CN102094992A (en) * | 2011-03-18 | 2011-06-15 | 温州科赛阀门有限公司 | Fixed ball valve for top assembling |
| CN102094992B (en) * | 2011-03-18 | 2012-10-10 | 温州科赛阀门有限公司 | Fixed ball valve for top assembling |
| CN102748497A (en) * | 2012-07-16 | 2012-10-24 | 圣博莱阀门有限公司 | Ultra-low temperature top-mounted type ball valve |
| CN102748497B (en) * | 2012-07-16 | 2014-08-06 | 圣博莱阀门有限公司 | Ultra-low temperature top-mounted type ball valve |
| CN103470803A (en) * | 2013-09-23 | 2013-12-25 | 清华大学 | Electric ball valve applied to high-temperature gas cooled reactor |
| CN105465475A (en) * | 2016-01-08 | 2016-04-06 | 朱志强 | Movable fit leakage controller for valve |
| CN105465475B (en) * | 2016-01-08 | 2017-10-10 | 朱志强 | A kind of dynamic cooperation leakage controller for valve |
| CN107489780A (en) * | 2017-08-23 | 2017-12-19 | 上海伟伦阀门集团江苏有限公司 | A kind of HTHP upper-mounting type ball valve |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090909 |