CN87210540U - Low temp. angle stop valve - Google Patents
Low temp. angle stop valve Download PDFInfo
- Publication number
- CN87210540U CN87210540U CN 87210540 CN87210540U CN87210540U CN 87210540 U CN87210540 U CN 87210540U CN 87210540 CN87210540 CN 87210540 CN 87210540 U CN87210540 U CN 87210540U CN 87210540 U CN87210540 U CN 87210540U
- Authority
- CN
- China
- Prior art keywords
- valve rod
- valve
- assembly parts
- flap
- stuffing box
- 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.)
- Expired - Lifetime
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- Lift Valve (AREA)
- Sliding Valves (AREA)
- Details Of Valves (AREA)
Abstract
The utility model discloses a low temperature angle type stop valve which has the functions of on-off and regulation of rate of flow in an air separation equipment and a low temperature pipe line. The utility model comprises an assembly of a valve body, a valve flap and a valve cover, an assembly of a lower valve stem, an upper valve stem, a valve stem joint, a sliding sleeve, a flange plate, a support and a hand wheel. The utility model has the advantages of reliable sealing performance, long service life, etc.
Description
The utility model is a kind of low temperature Angle Stop valves, rises on air-separating plant and low-temperature industrial pipeline and opens or close, and regulates the effect of flow, belongs to universal machine.
At present, the stop valve of using on the low-temperature industrial pipeline, flap do not have the guiding measure, make sealing surface abrade easily, come off automatically easily.No temperature deformation collocation structure causes the damage of valve components, the unparalleled seal ring sealing configuration of stuffing box, poor sealing performance causes stem packing letter place big seepage to occur, makes the outside phenomenon of freezing that occurs of valve, freezed to death in valve rod transmission position, make the valve cisco unity malfunction.Valve rod does not have hollow heat insulation structure, and whole valve is bigger to the influence of cryogenic media.
The purpose of this utility model is to have positioning disk for the low-temperature industrial pipeline provides a kind of flap, and sealing surface is difficult for scratch, difficult drop-off.Low temperature Angle Stop valves with temperature variation collocation structure and the hollow heat insulation structure of valve rod.
The utility model is realized with following technological scheme: for preventing coming off and the sealing surface scuffing of stop valve flap, increase by a positioning disk in the flap bottom.Positioning disk is screwed on flap.The seal ring made from polymeric material is fixed on the flap by positioning disk.For reducing the influence of valve, make former unitary solid valve rod into the combined hollow valve rod to cryogenic media.Be made up of four parts, first portion is the valve rod head that connects flap, and second portion is a tube in the hollow valve rod of thermal resistance, and third part is a solid valve rod in the stuffing box.In the hollow valve rod of thermal resistance in tube and valve rod head and the stuffing box solid valve rod weld together, form the lower valve rod assembly parts.The 4th part is a upper valve rod, and solid valve rod is connected by the valve rod joint screw thread in upper valve rod and the stuffing box, in the valve rod joint steel ball is housed.Adopt " V " type moulding annulus seal ring and two " O " RunddichtringO combination seals in the stuffing box." O " RunddichtringO is contained in the filler cover inner seal groove; Another " O " RunddichtringO is contained in the seal groove of the filler cover outside.Can suitably increase seal groove and " O " RunddichtringO according to actual needs.This structure has strengthened the reliability of sealing.In the installation position of valve and ice chest is the influence of adaptive temperature distortion to valve, the heat bridge structural member that employing can compensate automatically.Be by sliding sleeve, " O " RunddichtringO, Stuffing box, flanged plate is formed.Earlier " O " RunddichtringO is packed in the seal groove of Stuffing box outside, again sliding sleeve is installed in the Stuffing box outside.Its flanged plate has two kinds with the pattern that is connected of sliding sleeve, a kind ofly by bolt and pressing plate flanged plate and sliding sleeve is coupled together, and a kind ofly by round nut and awl end Cock screw flanged plate and sliding sleeve is coupled together.
Stuffing box, adapter, valve gap weld together forms the valve gap assembly parts.
It is reliable to the utlity model has sealing, and can not freeze to death in transmission position in valve top at low temperatures, guarantees the valve proper functioning.Sealing surface is difficult for scratch, and flap can not come off automatically, long service life, and the thermal resistance performance is good, leaks hot little.Can compensate alignment error and temperature deformation automatically.
Now in conjunction with the accompanying drawings the utility model is further described.
Fig. 1 is a sectional view of the present utility model.
Fig. 2 is the partial sectional view that the utility model heat bridge structural member adopts the round nut Placement.
Fig. 1～2nd, specific embodiment of the utility model is by valve body 1, flap positioning disk 3, the seal ring 4 that polymeric material is made, flap 5, cushion block 6, stopping shim 7, flap lid 8, flange gasket 9, valve gap assembly parts 10, valve gap assembly parts 10 is by valve gap, adapter, Stuffing box weld together composition.Lower valve rod assembly parts 13, lower valve rod assembly parts 13 are by the valve rod head, tube in the hollow valve rod of thermal resistance, and the solid valve rod in stuffing box position welds together composition.Sliding sleeve 14, flanged plate 16, pressing plate 18, support 24, hold-down grid 27, upper valve rod 41, filler cover 42, middle filler 43, Packing seat 44, valve rod joint 32, steel ball 34, Stem Mut 35, handwheel 37 is formed.Concrete assembly relation is referring to Fig. 1, the seal ring of earlier polymeric material being made 4 is fixed on the flap 5 by flap positioning disk 3 and cylinder end clamping fixed screw 2, cushion block 6 is placed in the attachment hole of flap top, use stopping shim 7 then, flap lid 8 is fixed on flap 5 on the head of lower valve rod assembly parts 13, flange gasket 9 is placed on valve body upper flange place, valve gap assembly parts 10 is contained in valve body upper flange place, use bolton.Sliding sleeve 14 is contained in the bottom of the Stuffing box of valve gap assembly parts 10, by 45 sealings of " O " RunddichtringO.Flanged plate 16 is fastenedly connected by pressing plate 18 and bolt and sliding sleeve 14.Support 24 is threaded with the Stuffing box top of valve gap assembly parts 10, in the stuffing box on the Stuffing box top of valve gap assembly parts 10, and the Packing seat 44 of packing into earlier, filler 43 in reinstalling, the filler of packing at last cover 42.Filler overlaps 42 endoporus and then respectively processes a seal groove outward, also can process a plurality of according to actual needs.Then, " O " RunddichtringO is packed in the seal groove.Stem Mut 35 is fixed in the Stem Mut hole of support by Cock screw 36.Upper valve rod 41 is connected with lower valve rod assembly parts 13 by valve rod joint 32, after the joint installs steel ball 34.Fastening with Cock screw 33,31.Handwheel 37 is contained on the upper valve rod 41, and is fastening by nut.Flanged plate 16 also can be connected with Cock screw with round nut with sliding sleeve 14.Referring to Fig. 2.
The utility model is compared with original cryogenic globe valve: adopt metal and nonmetal combination because sealing is paid, its seal pressure is little, and sealing property is reliable. And be provided with positioning disk, prevent that the scratch of sealing face and flap from coming off automatically. It is convenient to change the sealing part. Long service life. Adopt the automatically hot bridge combined structural member of compensation, can automatically adjust the distortion of alignment error and temperature. Prevent the damage effect to valve components. Adopt the filler cover of V-type moulding annulus sealing ring and two " O " RunddichtringOs. Strengthen the reliability of sealing. Avoid stuffing-box place cold air to ooze out outside freezing freezed to death valve, guarantee that valve works under low temperature condition.
Claims (1)
1, a kind of low temperature Angle Stop valves, it comprises valve body 1, flap 5, support 24, method stem nut 35, hold-down grid 27, cushion block 6, stopping shim 7, flap lid 8, flange gasket 9, handwheel 37, it is characterized in that seal ring 4 is fixed on the flap 5 by flap positioning disk 3 and Cock screw 2, cushion block 6 is placed in the attachment hole of flap top, with stopping shim 7, flap lid 8 is fixed on flap 5 on the head of lower valve rod assembly parts 13, lower valve rod assembly parts 13 is welded together by solid valve rod in the hollow valve rod of thermal resistance and valve rod head and the stuffing box forms the lower valve rod assembly parts, valve gap assembly parts 10 is contained in valve body upper flange place, use bolton, valve gap assembly parts 10 is taken over by valve gap, Stuffing box welds together composition, sliding sleeve 14 is contained in the bottom of the Stuffing box of valve gap assembly parts 10, and flanged plate 16 is fastenedly connected by pressing plate 18 and bolt and sliding sleeve 14, and support 24 is threaded with the Stuffing box top of valve gap assembly parts 10, in the stuffing box on the Stuffing box top of valve gap assembly parts 10, the Packing seat 44 of packing into earlier, filler 43 in reinstalling, the filler of packing at last cover 42, filler overlaps 42 endoporus and the outside respectively processes a seal groove, " O " RunddichtringO is packed in the seal groove, as required, also can suitably increase seal groove or " O " RunddichtringO.Upper valve rod 41 is connected with lower valve rod assembly parts 13 by valve rod joint 32, and steel ball 34 is housed in the valve rod joint, and fastening with Cock screw 33,31, flanged plate 16 also can be connected with fastening screw trip bolt with round nut with sliding sleeve 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87210540 CN87210540U (en) | 1987-09-11 | 1987-09-11 | Low temp. angle stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87210540 CN87210540U (en) | 1987-09-11 | 1987-09-11 | Low temp. angle stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87210540U true CN87210540U (en) | 1988-05-18 |
Family
ID=4825464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87210540 Expired - Lifetime CN87210540U (en) | 1987-09-11 | 1987-09-11 | Low temp. angle stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87210540U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006175A (en) * | 2014-05-15 | 2014-08-27 | 杭州杭氧工装泵阀有限公司 | Self-tuning safety valve clack structure |
| CN105020403A (en) * | 2015-06-05 | 2015-11-04 | 苏州纽威阀门股份有限公司 | Valve |
| CN105179718A (en) * | 2015-09-21 | 2015-12-23 | 苏州纽威阀门股份有限公司 | Valve |
| CN106090243A (en) * | 2016-07-20 | 2016-11-09 | 李琦 | A kind of valve of transforming is with the method extracting fixed gas |
| CN108980368A (en) * | 2018-08-24 | 2018-12-11 | 江苏华太电力仪表有限公司 | A kind of high intensity needle-like double nip cryogenic globe valve |
| CN109084028A (en) * | 2018-08-20 | 2018-12-25 | 中国科学院理化技术研究所 | New type low temperature distribution valve arrangement |
| CN109268556A (en) * | 2018-11-06 | 2019-01-25 | 江苏圣泰阀门有限公司 | Ultralow temperature shut-off valve |
-
1987
- 1987-09-11 CN CN 87210540 patent/CN87210540U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006175A (en) * | 2014-05-15 | 2014-08-27 | 杭州杭氧工装泵阀有限公司 | Self-tuning safety valve clack structure |
| CN105020403A (en) * | 2015-06-05 | 2015-11-04 | 苏州纽威阀门股份有限公司 | Valve |
| CN105020403B (en) * | 2015-06-05 | 2017-09-12 | 苏州纽威阀门股份有限公司 | A kind of valve |
| CN105179718A (en) * | 2015-09-21 | 2015-12-23 | 苏州纽威阀门股份有限公司 | Valve |
| CN105179718B (en) * | 2015-09-21 | 2017-09-12 | 苏州纽威阀门股份有限公司 | A kind of valve |
| CN106090243A (en) * | 2016-07-20 | 2016-11-09 | 李琦 | A kind of valve of transforming is with the method extracting fixed gas |
| CN109084028A (en) * | 2018-08-20 | 2018-12-25 | 中国科学院理化技术研究所 | New type low temperature distribution valve arrangement |
| CN108980368A (en) * | 2018-08-24 | 2018-12-11 | 江苏华太电力仪表有限公司 | A kind of high intensity needle-like double nip cryogenic globe valve |
| CN109268556A (en) * | 2018-11-06 | 2019-01-25 | 江苏圣泰阀门有限公司 | Ultralow temperature shut-off valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |