CN109681669A - A kind of novel upper-mounting type cryogenic ball valve - Google Patents
A kind of novel upper-mounting type cryogenic ball valve Download PDFInfo
- Publication number
- CN109681669A CN109681669A CN201910148324.2A CN201910148324A CN109681669A CN 109681669 A CN109681669 A CN 109681669A CN 201910148324 A CN201910148324 A CN 201910148324A CN 109681669 A CN109681669 A CN 109681669A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- lip
- spring base
- face
- 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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Links
- 238000012856 packing Methods 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 238000007667 floating Methods 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The present invention relates to a kind of novel upper-mounting type cryogenic ball valves, including valve body, valve seat, sphere, valve deck, its valve body is structure as a whole, sphere, valve seat use upper dress formula structure, valve seat uses floating type valve seat, the floating type valve seat includes seal receptacle, compacting ring, spring base, Lip-Seal lip-type packing, and valve seat uses DIB-2 structure；It is characterized in that the both ends of Lip-Seal lip-type packing are fitted between the third radial end face of spring base and the radial step of valve channel inner wall second；Have between first radial end face of spring base and the radial end face of seal receptacle and axially backs out gap.It avoids Lip-Seal lip-type packing and generates abrasion because sliding axially, improve sealing reliability.
Description
Technical field
The invention belongs to valve field more particularly to a kind of upper-mounting type ball valves.The present invention is especially suitable for worst cold cases.
Background technique
The structure of upper dress formula cryogenic ball valve includes valve body, valve seat, sphere, valve deck, valve rod, and valve body is structure as a whole, ball
Body, valve seat are packed into valve chamber from valve body middle chamber, and valve seat uses floating structure.Currently, the valve of domestic and international upper dress formula cryogenic ball valve
Lip-Seal lip-type packing is generallyd use between seat and valve body, in order to avoid scraping damage valve seat and sphere are close in installation process
Cover needs biggish axial direction to back out gap between valve seat and valve body.The axial direction of existing product backs out gap and is all disposed within Lip-
In the installation cavity of Seal lip-type packing, cause Lip-Seal lip-type packing under pressure medium effect in its installation cavity inner shaft
The two-way Lip-Seal lip-type packing used to sliding, especially valve outlet side valve seat, under pressure medium promotion back and forth
Sliding, causes the abrasion of Lip-Seal lip-type packing, influences sealing performance.
Summary of the invention
The purpose of the present invention is being directed to disadvantage of the existing technology, the novel upper-mounting type for providing a kind of good seal performance is low
Warm ball valve.
Technical solution of the present invention includes valve body, valve seat, sphere, valve deck, and valve body is structure as a whole, and sphere, valve seat are adopted
With dress formula structure, valve seat uses floating type valve seat, and the floating type valve seat includes seal receptacle, compacting ring, spring base, Lip-
Seal lip-type packing, Lip-Seal lip-type packing are mounted between seal receptacle radial direction periphery and valve channel inner round wall,
Valve seat uses DIB-2 structure, and compacting ring is mounted on the external screw thread of seal receptacle sealing surface side outer circle by internal screw thread, compacting ring
First radial end face of one radial end face and spring base contacts, the second radial end face and valve channel inner wall first of spring base
It is equipped with spring cavity between radial step, spring is installed in the spring cavity；It is characterized in that two side pressures of Lip-Seal lip-type packing
Between the radial step of third radial end face and valve channel inner wall second of spring base；First radial end face of spring base with
Have between the radial end face of seal receptacle and axially backs out gap.
Preferably, divide between spring base inner hole wall and seal receptacle periphery and spring base periphery and valve channel inner wall
It She Zhi not sealing ring.
It is an advantage of the invention that axial back out gap setting in the first radial end face of spring base and the longitudinal end of seal receptacle
Between face, when seal receptacle is installed, compacting ring is first fallen back on to the sealing surface side of seal receptacle, seal receptacle and sphere are packed into valve channel
Afterwards, then by compacting ring to spring base it compresses, keeps the sealing surface of seal receptacle and ball seal face pressure tight, avoid valve seat in installation process
The scratch of sealing surface and ball seal face；Lip-Seal lip-type packing both ends are fitted in the third radial end face and valve of spring base
Between the radial step of body vias inner walls second, Lip-Seal lip-type packing is avoided because sliding axially and generates abrasion, is improved close
Sealing property.
Detailed description of the invention
Fig. 1 is outlet side valve seat mounting structure schematic diagram of the present invention.
Fig. 2 is inlet side valve seat mounting structure schematic diagram of the present invention.
Specific embodiment
Novel upper-mounting type cryogenic ball valve as shown in Figure 1 and Figure 2, including valve body 7, valve seat, sphere 1, valve deck, valve body 7 are one
Body structure, valve seat are mounted on valve body 7 and import and export in channel, and valve deck is mounted on 7 lumen of valve body, and sphere 1, valve seat use upper dress formula knot
Structure, i.e. sphere 1 and valve seat are packed into 7 inner cavity of valve body from lumen, and valve seat is floating valve seat, and the floating valve seat includes seal receptacle 2, pressure
Collar 3, spring base 4, Lip-Seal lip-type packing 6, Lip-Seal lip-type packing 6 are mounted on the radial periphery of seal receptacle 2
Between 7 channel inner round wall of valve body, valve seat uses DIB-2 structure, i.e. upstream inlet uses single-piston effect valve seat, lower exit
Using double-piston effect valve seat, guarantee that there are valve twice reliably to seal, while valve seat can be passed through toward upstream when lumen superpressure
Releasing pressure automatically.Compacting ring 3 is mounted on the external screw thread of 2 sealing surface side outer circle of seal receptacle by internal screw thread, a diameter of compacting ring 3
It is contacted to end face and the first radial end face of spring base 4, when installation, compacting ring 3 is first transferred to 2 sealing surface of seal receptacle, one side end face
Place after being packed into seal receptacle 2 and sphere 1, then by compacting ring 3 to the adjusting of 4 direction of spring base, makes its first radial direction with spring base 4
End face compresses, by the sealing surface of seal receptacle 2 and 1 compression fit of sphere.In second radial end face of spring base 4 and 7 channel of valve body
Be equipped with spring cavity between the radial step of wall first, spring 8 be installed in the spring cavity, 4 periphery of spring base and 7 inner hole wall of valve body it
Between dynamic sealing cooperate, dynamic sealing cooperation between 2 periphery of inner hole wall and seal receptacle of spring base 4, make seal receptacle 2, compacting ring 3,
Spring base 4 forms floating valve seat, and the axial floating in 7 channel of valve body, what compensation temperature variation generated expands with heat and contract with cold, and prevents heat expansion
When stuck or shrinkage when leak；It is characterized in that the both ends of Lip-Seal lip-type packing 6 are fitted in the third longitudinal end of spring base 4
Between 7 the second radial step of vias inner walls of face and valve body, prior art Lip-Seal lip-type packing 6 is avoided in installation cavity
Slide axially the abrasion of generation, improves sealing reliability；The radial end face of first radial end face of spring base 4 and seal receptacle 2 it
Between have it is axial back out gap 9, when which is backed out the axial width in gap 9 and be retracted in 7 channel of valve body with seal receptacle 2, guarantee
It is design considerations, the width in the 7 channel centerline direction of axial width, that is, valve body that sphere 1, which is reliably packed into valve chamber by lumen,.
Between 4 inner hole wall of spring base and 2 periphery of seal receptacle and 7 vias inner walls of 4 periphery of spring base and valve body respectively
Sealing ring 5 is set, prevents the impurity in medium from entering in Lip-Seal lip-type packing 6 and spring cavity.
Claims (3)
1. a kind of novel upper-mounting type cryogenic ball valve, including valve body (7), valve seat, sphere (1), valve deck, valve body (7) are structure as a whole,
Sphere (1), valve seat use upper dress formula structure, and valve seat is floating valve seat, and the floating valve seat includes seal receptacle (2), compacting ring
(3), spring base (4), Lip-Seal lip-type packing (6), it is radial that Lip-Seal lip-type packing (6) is mounted on seal receptacle (2)
Between periphery and valve body (7) channel inner round wall, compacting ring (3) is mounted on seal receptacle (2) close to sealing surface side by internal screw thread
On the external screw thread of outer circle, the first radial end face of the radial end face and spring base (4) of compacting ring (3) is contacted, spring base (4)
The second radial end face and the radial step of valve body (7) vias inner walls first between be equipped with spring cavity, spring is installed in the spring cavity
(8)；It is characterized in that the both ends of Lip-Seal lip-type packing (6) are fitted in third radial end face and valve body (7) of spring base (4)
Between the radial step of vias inner walls second；Have between first radial end face of spring base (4) and the radial end face of seal receptacle (2)
Axially back out gap (9).
2. novel upper-mounting type cryogenic ball valve according to claim 1, it is characterized in that valve body (7) inlet side is imitated using single-piston
Valve seat is answered, outlet side uses double-piston effect valve seat.
3. novel upper-mounting type cryogenic ball valve according to claim 1 or 2, it is characterized in that spring base (4) inner hole wall and sealing
Sealing ring (5) are respectively set between seat (2) periphery and spring base (4) periphery and valve body (7) vias inner walls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910148324.2A CN109681669A (en) | 2019-02-28 | 2019-02-28 | A kind of novel upper-mounting type cryogenic ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910148324.2A CN109681669A (en) | 2019-02-28 | 2019-02-28 | A kind of novel upper-mounting type cryogenic ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109681669A true CN109681669A (en) | 2019-04-26 |
Family
ID=66197162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910148324.2A Withdrawn CN109681669A (en) | 2019-02-28 | 2019-02-28 | A kind of novel upper-mounting type cryogenic ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109681669A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551053A (en) * | 2021-07-22 | 2021-10-26 | 西诺威阀门控制（苏州）有限公司 | Ultra-low temperature top-mounted fixed ball valve |
| IT202100029588A1 (en) * | 2021-11-23 | 2023-05-23 | Italian Valve Service S R L | SEALING SYSTEM FOR MECHANICAL PARTS |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742672A (en) * | 2014-01-27 | 2014-04-23 | 苏州纽威阀门股份有限公司 | Top-mounted ball valve |
| CN203686235U (en) * | 2014-01-27 | 2014-07-02 | 苏州纽威阀门股份有限公司 | Top mounted ball valve |
| CN205155214U (en) * | 2015-10-19 | 2016-04-13 | 浙江中德自控科技股份有限公司 | High temperature -resisting top assembling type ball valve |
| CN105972240A (en) * | 2016-05-25 | 2016-09-28 | 杭州佳能阀门有限公司 | Tool-free upward-mounted fixing ball valve |
| CN107448639A (en) * | 2017-09-05 | 2017-12-08 | 圣博莱阀门有限公司 | Formula fixing ball valve is filled on low temperature |
| CN208457248U (en) * | 2018-03-28 | 2019-02-01 | 北京市阀门总厂股份有限公司 | Formula nickel-base alloy ball valve is filled on a kind of ESDV Pneumatic single-action |
| CN209743658U (en) * | 2019-02-28 | 2019-12-06 | 浙江伯特利科技有限公司 | Novel upper assembling type low-temperature ball valve |
-
2019
- 2019-02-28 CN CN201910148324.2A patent/CN109681669A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742672A (en) * | 2014-01-27 | 2014-04-23 | 苏州纽威阀门股份有限公司 | Top-mounted ball valve |
| CN203686235U (en) * | 2014-01-27 | 2014-07-02 | 苏州纽威阀门股份有限公司 | Top mounted ball valve |
| CN205155214U (en) * | 2015-10-19 | 2016-04-13 | 浙江中德自控科技股份有限公司 | High temperature -resisting top assembling type ball valve |
| CN105972240A (en) * | 2016-05-25 | 2016-09-28 | 杭州佳能阀门有限公司 | Tool-free upward-mounted fixing ball valve |
| CN107448639A (en) * | 2017-09-05 | 2017-12-08 | 圣博莱阀门有限公司 | Formula fixing ball valve is filled on low temperature |
| CN208457248U (en) * | 2018-03-28 | 2019-02-01 | 北京市阀门总厂股份有限公司 | Formula nickel-base alloy ball valve is filled on a kind of ESDV Pneumatic single-action |
| CN209743658U (en) * | 2019-02-28 | 2019-12-06 | 浙江伯特利科技有限公司 | Novel upper assembling type low-temperature ball valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551053A (en) * | 2021-07-22 | 2021-10-26 | 西诺威阀门控制（苏州）有限公司 | Ultra-low temperature top-mounted fixed ball valve |
| IT202100029588A1 (en) * | 2021-11-23 | 2023-05-23 | Italian Valve Service S R L | SEALING SYSTEM FOR MECHANICAL PARTS |
| WO2023094932A1 (en) * | 2021-11-23 | 2023-06-01 | Italian Valve Service S.R.L. | Sealing system for mechanical members |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 325102 Dongou Industrial Zone, Oubei street, Yongjia County, Wenzhou, Zhejiang Applicant after: Zhejiang bertley Technology Co.,Ltd. Address before: 325102 Dongou Industrial Zone, Oubei street, Yongjia County, Wenzhou, Zhejiang Applicant before: ZHEJIANG BOTELI VALVE Group |
|
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190426 |