CN206973007U - A kind of cryogenic vacuum chuck stop valve - Google Patents
A kind of cryogenic vacuum chuck stop valve Download PDFInfo
- Publication number
- CN206973007U CN206973007U CN201720692361.6U CN201720692361U CN206973007U CN 206973007 U CN206973007 U CN 206973007U CN 201720692361 U CN201720692361 U CN 201720692361U CN 206973007 U CN206973007 U CN 206973007U
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- Prior art keywords
- valve body
- neck
- long
- valve
- cryogenic
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- Expired - Fee Related
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- Lift Valve (AREA)
Abstract
This practicality discloses a kind of cryogenic vacuum chuck stop valve, including long-neck valve body body, long neck, valve body upper flange and bonnet；The guide sleeve for being fixed on long-neck valve body body upper end is internally provided with the long neck of the valve body, the upper end of guide sleeve is provided with least forms heat-insulated group by two collets；The outside of the long-neck valve body body and the long neck of valve body is provided with vacuum jacket pipe.Valve body upper flange external diameter is less than vacuum jacket bore in the utility model, it is ensured that cryogenic vacuum outer tube cover from there under, welding.Cryogenic vacuum pipeline manufacturer only needs to cover upper exterior tube outside cryogenic vacuum chuck stop valve long-neck valve body, the outer tube that the outer tube welds with both ends welds together, cryogenic piping and cryogenic globe valve is set to form a metal sandwich, the vacuum layer has good effect of heat insulation, so as to obstruct cryogenic media and the heat exchange of vacuum pipe outside pipe in cryogenic vacuum pipeline, reach heat insulation effect.
Description
Technical field
A kind of stop valve is the utility model is related to, more particularly to a kind of cryogenic globe valve.
Background technology
Stop valve, also known as pipe valve valve, belong to forced seal formula valve, be a kind of one of most popular valve.Cut-off
Valve relies on valve rod pressure, valve clack sealing surface is brought into close contact with sealing surface of seat, prevents flow of media, is unidirectionally flowed because only being permitted medium
It is dynamic, so directional during installation.Stop valve can be divided into Oblique Stop Valves, angle stop valves, plunger stop valve, upper screw thread
Valve rod stop valve, lower threaded stem stop valve etc., they have, and durable, Lift is little, easy to manufacture, easy to maintenance, no
The characteristics of being only applicable to mesolow, and being applied to high pressure.
Cryogenic vacuum pipeline is a kind of pipe-line system for low temperature and deep cooling medium, in the circulation of low temperature and deep cooling medium
Pipeline external increases by one layer of vacuum jacket thermal insulation layer, is mutually passed between heat outside cold and pipeline with stopping or reducing in pipeline
Lead, so as to which the low-temperature deep medium ensured in circulation duct is not easy to evaporate, vaporizes, and lead between these cryogenic vacuum pipelines
Some valve arrangements are often needed, these valve arrangements need also exist for heat-insulation and heat-preservation, usually by foaming outside valve arrangement
Heat-insulation layer carrys out heat-insulation and heat-preservation, and foamed heat insulating needs the later stage to be laid on valve arrangement, tedious process, particularly under low temperature environment,
With the characteristics of inconvenient of constructing.
Utility model content
The purpose of this utility model is a kind of cryogenic globe valve structure of exploitation, by manufacture vacuum pipe and installation Subzero valve
It is synchronous to carry out；The valve not only substitutes foamed heat insulating technique, makes the cryogenic piping of transporting low temperature medium have more preferable heat insulation effect,
Also cryogenic piping, valve is made to become attractive in appearance, and most of factory that is operated in completes, and can better ensure that product quality, contract
Short site operation, set-up time.
Utility model is realized by the following technical solutions：
A kind of cryogenic vacuum chuck stop valve, including long-neck valve body body, the long-neck valve body body upper end set valve body
Long neck, the upper end welding valve body upper flange of the long neck of valve body, valve body upper flange upper end fastens the bonnet of threaded connection；Its feature
It is：The guide sleeve for being fixed on long-neck valve body body upper end is internally provided with the long neck of the valve body, the upper end of guide sleeve is set
It is equipped with and at least forms heat-insulated group by two collets；The outside of the long-neck valve body body and the long neck of valve body is provided with vacuum
Outer tube.
Further, the collet sets at least to 4, forms at least 2 groups.
Further, the vacuum jacket pipe diameter being arranged on outside the long neck of valve body is more than valve body upper flange diameter.
Further, the packing elements being socketed on valve rod periphery are additionally provided with the upper end of the bonnet, it is described to fill out
Material part is pressed on the bonnet upper end by filler pressing sleeve.
Further, the collet is low temperature resistant nonmetallic materials collet.
The beneficial effects of the utility model are：
1st, valve body upper flange external diameter is less than vacuum jacket bore in the utility model, it is ensured that cryogenic vacuum outer tube from
Cover herein under, weld.Cryogenic vacuum pipeline manufacturer only needs to put outside cryogenic vacuum chuck stop valve long-neck valve body outside
Pipe, the outer tube that the outer tube welds with both ends weld together, and make have a metal sandwich outside cryogenic piping and cryogenic globe valve, then
The interlayer is evacuated by vaccum-pumping equipment, the vacuum layer has good effect of heat insulation, so as to obstruct cryogenic vacuum
Cryogenic media and the heat exchange of vacuum pipe outside pipe, reach heat insulation effect in pipeline.
2nd, valve body uses long-neck valve body structure, and its object is to stuffing-box position is exceeded the low temperature frosting of the path valve
Line, allow filler to be in and worked close under environment temperature, the function of protection stuffing-box can be played.Because the sealing of stuffing-box is low temperature
One of key of valve.If any leakage at this, cold insulation effect will be reduced, cause liquified gas vaporization.The length of long-neck valve body be by
The factors such as thermal conductivity factor, heat-conducting area and the surface coefficient of heat transfer of material determine.The hub intracavitary of hub valve body sets more
The low temperature resistant nonmetallic materials of section, the thermal conductivity factor of the low temperature nonmetallic materials is small, and the cold in lower pipeline is not easy to pass
Lead at the filler of top, and a cavity is left between every section of low temperature resistant nonmetallic materials, reduce chamber in-vivo medium convection velocity, so as to
Upper and lower medium is reduced heat exchange, ensure that Subzero valve filler is in and worked close under environment temperature, reach preferably sealing effect
Fruit.
Brief description of the drawings
Fig. 1 is the utility model overall structure diagram；
In figure：1- long-neck valve bodies body, the long neck of 1a- valve bodies, 2- valves top, 3- guide sleeves, 4- collets, 5- valve rods, 6-
Packing elements, 7- handwheels, 8- filler pressing sleeves, 9- bonnets, 10- valve bodies upper flange, 11- vacuum jackets pipe, 12- valves top sealing ring.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is described further to the utility model.
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining this
Utility model, it is not used to limit the utility model.
As shown in figure 1, present embodiment discloses a kind of cryogenic vacuum chuck stop valve, it includes long-neck valve body body 1, valve
Top 2, the guide sleeve 3 of support guide effect, collet 4, valve rod 5, packing elements 6, handwheel 7, filler pressing sleeve 8, bonnet 9, valve top
Sealing ring 12；The height of long-neck valve body body 1 is increased, and ensure that stuffing-box position exceedes the low temperature frosting line position of the path valve
Put, and design at an upper portion thereof, manufactured valve body upper flange 10.Separate space position is provided with valve top 2, valve in long-neck valve body body 1
Push up sealing ring 12 to be arranged on valve top 2, valve top 2 is connected with valve rod 5, is led in the hub interior lower end installation of hub valve body body 1
To set 3, valve rod 5 therefrom heart pilot hole by playing stable valve rod 5 and guide effect, being cased with outside valve rod 5 nonmetallic heat-insulated
Set 4, bonnet 9 is connected with valve body upper flange 10, and packing elements 6 are provided with bonnet 9, and filler has filler pressing sleeve 8 to compress, valve rod 5
Bonnet 9 is provided with trapezoidal thread, moment of torsion is transmitted by the handwheel 7 installed in the top of valve rod 5, completes cryogenic vacuum chuck stop valve
Open and close.
Vacuum jacket pipe 11 as shown in Fig. 1 black dotted lines, it is to be manufactured by cryogenic vacuum pipeline manufacturer, on valve body
The external diameter of flange 10 is less than cryogenic vacuum bore, it is ensured that cryogenic vacuum pipe cover from there under, welding.Cryogenic vacuum pipeline manufactures
Business only needs to put vacuum jacket pipe 11 outside cryogenic vacuum chuck stop valve long-neck valve body, and the outer tube is outer with both ends welding
Pipe welds together, and makes have a metal sandwich outside cryogenic piping and cryogenic globe valve, then by vaccum-pumping equipment by the interlayer
It is evacuated, the vacuum layer has good effect of heat insulation, so as to obstruct cryogenic media and vacuum tube in cryogenic vacuum pipeline
The heat exchange of road outside pipe, reaches heat insulation effect.
Above-described embodiment is preferred embodiment of the present utility model, is not the limit to technical solutions of the utility model
System, as long as the technical scheme that can be realized without creative work on the basis of above-described embodiment, is regarded as falling into
In the rights protection scope of the utility model patent.
Claims (5)
1. a kind of cryogenic vacuum chuck stop valve, including long-neck valve body body (1), long-neck valve body body (1) upper end is set
The long neck of valve body (1a), the upper end welding valve body upper flange (10) of the long neck of valve body (1a), valve body upper flange (10) upper end fastens
The bonnet (9) of threaded connection；It is characterized in that：It is internally provided with the long neck of the valve body (1a) and is fixed on long-neck valve body body
(1) guide sleeve (3) of upper end, the upper end of guide sleeve (3) is provided with least forms heat-insulated group by two collets (4)；The length
The outside of neck valve body body (1) and the long neck of valve body (1a) is provided with vacuum jacket pipe (11).
2. a kind of cryogenic vacuum chuck stop valve according to claim 1, it is characterised in that the collet (4) is at least
It is arranged to 4.
3. a kind of cryogenic vacuum chuck stop valve according to claim 1 or 2, it is characterised in that described to be arranged on valve body
Outside vacuum jacket pipe (11) diameter of long neck (1a) is more than valve body upper flange (10) diameter.
4. a kind of cryogenic vacuum chuck stop valve according to claim 1, it is characterised in that in the upper end of the bonnet (9)
The packing elements (6) being socketed on valve rod (5) periphery are additionally provided with, the packing elements (6) are set by filler pressing sleeve (8) pressure
In the bonnet (9) upper end.
5. a kind of cryogenic vacuum chuck stop valve according to claim 1, it is characterised in that the collet (4) is resistance to low
Warm nonmetallic materials collet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720692361.6U CN206973007U (en) | 2017-06-14 | 2017-06-14 | A kind of cryogenic vacuum chuck stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720692361.6U CN206973007U (en) | 2017-06-14 | 2017-06-14 | A kind of cryogenic vacuum chuck stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206973007U true CN206973007U (en) | 2018-02-06 |
Family
ID=61408902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720692361.6U Expired - Fee Related CN206973007U (en) | 2017-06-14 | 2017-06-14 | A kind of cryogenic vacuum chuck stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206973007U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980379A (en) * | 2018-08-24 | 2018-12-11 | 江苏华太电力仪表有限公司 | A kind of vacuum jacket cryogenic globe valve |
| CN112431954A (en) * | 2020-11-20 | 2021-03-02 | 明珠阀门集团有限公司 | Fire-proof self-cut-off valve |
-
2017
- 2017-06-14 CN CN201720692361.6U patent/CN206973007U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980379A (en) * | 2018-08-24 | 2018-12-11 | 江苏华太电力仪表有限公司 | A kind of vacuum jacket cryogenic globe valve |
| CN112431954A (en) * | 2020-11-20 | 2021-03-02 | 明珠阀门集团有限公司 | Fire-proof self-cut-off valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180206 Termination date: 20200614 |