CN208670126U - A kind of low temperature three-way ball valve - Google Patents
A kind of low temperature three-way ball valve Download PDFInfo
- Publication number
- CN208670126U CN208670126U CN201821383064.4U CN201821383064U CN208670126U CN 208670126 U CN208670126 U CN 208670126U CN 201821383064 U CN201821383064 U CN 201821383064U CN 208670126 U CN208670126 U CN 208670126U
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- Prior art keywords
- valve
- valve seat
- support
- low temperature
- flange
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Abstract
The utility model discloses a kind of low temperature three-way ball valves, including valve body, the inner wall of valve body is fixedly installed a T-shaped pipeline, and valve body is symmetrically fixed at the two sides of pipeline, the top of valve body is fixedly installed left flange and right flange respectively, the top of left flange and right flange is respectively arranged with left valve seat support and the support of right valve seat, left valve seat support and the support of right valve seat are respectively placed in the two sides of pipeline or more, and left valve seat support and the inside of the side of right valve seat support are respectively arranged with left reset spring and right reset spring.Cooperate between the utility model sphere, left and right flange and valve body accurate, butterfly spring is set between left and right flange and valve seat, after occurring gap between valve seat and sphere, under the elastic force effect of spring, push valve seat to sphere, so that valve seat and sphere cooperation keep high-precision, enhance its sealing performance.
Description
Technical field
The utility model relates to a kind of three-way ball valve, specially a kind of low temperature three-way ball valve.
Background technique
Ball valve results from the 1950s, with the rapid development of science and technology, production technology and product structure are not
It is disconnected to improve, in the 40 short years, rapidly develop as a kind of main valve class.
Traditional low temperature three-way ball valve is usually using manual or Pneumatic rotary valve rod, and the rotation of valve rod drives sphere rotation
90 ° are realized opening or closing for valve, and left and right valve seat is mostly soft seal material (such as PTFE, PCTFE, NYLON etc.), sealing
The compressive deformation of left and right valve seat is relied primarily on to seal, is assembled under normal temperature conditions, the compression deformation of valve is controlled,
And be ultralow temperature in actual condition, each parts and components of ball valve easily cause that ball valve is swollen dead or leakage due to the principle expanded with heat and contract with cold
The problem of, in addition, cryogenic ball valve open, in closing process there are fretting wear, the valve seat of soft sealing material is easier to wear,
There is gap, and cause valve leak, therefore we make improvement to this, proposes a kind of low temperature three-way ball valve.
Utility model content
There is the compression deformation for controlling valve to solve the prior art, and be ultralow temperature in actual condition, ball valve is each
Parts and components are due to the principle expanded with heat and contract with cold, the problem of easily causing swollen dead ball valve or leakage, in addition, cryogenic ball valve open,
There are fretting wear in closing process, the valve seat of soft sealing material is easier to wear, and gap occurs, and causes lacking for valve leak
It falls into, the utility model provides a kind of low temperature three-way ball valve.
In order to solve the above-mentioned technical problem, the utility model provides the following technical solution:
A kind of low temperature three-way ball valve of the utility model, including valve body, the inner wall of the valve body be fixedly installed one it is T-shaped
Pipeline, and valve body is symmetrically fixed at the two sides of pipeline, and the top of the valve body is fixedly installed left flange and the right side respectively
The top of flange, the left flange and right flange is respectively arranged with left valve seat support and the support of right valve seat, the left valve seat support
The two sides of pipeline or more, the inside difference for the side that the left valve seat support and right valve seat support are respectively placed in the support of right valve seat
It is provided with left reset spring and right reset spring, is provided with left valve seat between the left valve seat support and the support of right valve seat and pipeline
With right valve seat, sphere is movably set in the middle part of the pipeline, one end of the sphere is fixedly connected with valve rod.
As a kind of optimal technical scheme of the utility model, seal friction gasket is fixedly installed on the valve rod.
As a kind of optimal technical scheme of the utility model, filler pressing sleeve, the filler pressure are arranged on the valve rod
Valve stem packing is filled on the bottom end valve rod of set.
As a kind of optimal technical scheme of the utility model, valve rod disc spring is provided with above the valve rod.
As a kind of optimal technical scheme of the utility model, the top of the valve rod is fixedly installed handle.
As a kind of optimal technical scheme of the utility model, the top of the side of the left valve seat support and the support of right valve seat
End is filled with left support filler and right support filler.
The beneficial effects of the utility model are:
1, cooperate precision between sphere, left and right flange and valve body, butterfly spring is set between left and right flange and valve seat, when
After there is gap between valve seat and sphere, under the elastic force effect of spring, push valve seat to sphere, so that valve seat and sphere cooperate
High-precision is kept, its sealing performance is enhanced.
2, it is also filled with filler between valve body stuffing-box and valve rod, filler pressing sleeve, filler pressing sleeve pressure are further sleeved on valve rod
Above filler, hold-down grid is set to above filler pressing sleeve, a butterfly spring is provided with above valve rod, by fastening the butterfly
Spring can compress gasket between valve rod lower end surface step and valve body, guarantee that medium is not easy to leak from valve rod and stuffing-box.
Detailed description of the invention
Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this
Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of structural schematic diagram of low temperature three-way ball valve of the utility model；
Fig. 2 is a kind of filler pressing sleeve of low temperature three-way ball valve of the utility model, valve rod and handle arrangement schematic diagram.
In figure: 1, valve body；2, Zuo Falan；3, left valve seat support；4, left reset spring；5, left support filler；6, sphere；7,
Left valve seat；8, seal friction gasket；9, valve stem packing；10, filler pressing sleeve；11, valve rod disc spring；12, valve rod；13, handle；14,
Right valve seat；15, right support filler；16, right reset spring；17, right valve seat support；18, right flange.
Specific embodiment
It is illustrated below in conjunction with preferred embodiment of the attached drawing to the utility model, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
Embodiment: as depicted in figs. 1 and 2, a kind of low temperature three-way ball valve of the utility model, including valve body 1, valve body 1 it is interior
Wall is fixedly installed a T-shaped pipeline, and valve body 1 is symmetrically fixed at the two sides of pipeline, and the top of valve body 1 is solid respectively
Surely left flange 2 and right flange 18 are provided with, the top of Zuo Falan 2 and right flange 18 is respectively arranged with left valve seat support 3 and right valve
Seat supports 17, left valve seat support 3 and right valve seat support 17 are respectively placed in the two sides of pipeline or more, left valve seat support 3 and right valve seat
The inside of the side of support 17 is respectively arranged with left reset spring 4 and right reset spring 16, left valve seat support 3 and the support of right valve seat
It is provided with left valve seat 7 and right valve seat 14 between 17 and pipeline, sphere 6 is movably set in the middle part of pipeline, one end of sphere 6 is fixed
It is connected with valve rod 12.
Wherein, it is fixedly installed seal friction gasket 8 on valve rod 12, reduce friction while increasing its sealing performance.
Wherein, it is arranged with filler pressing sleeve 10 on valve rod 12, is filled with valve stem packing on the bottom end valve rod 12 of filler pressing sleeve 10
9, facilitate and valve rod 12 is protected not come to harm.
Wherein, the top of valve rod 12 is provided with valve rod disc spring 11, can be compressed under valve rod 12 by fastening valve rod disc spring 11
Gasket between end face step and valve body 1 guarantees that medium is not easy to leak from valve rod 12 and valve stem packing 9.
Wherein, the top of valve rod 12 is fixedly installed handle 13, controls valve rod 12 convenient for people.
Wherein, the top of the side of left valve seat support 3 and right valve seat support 17 is filled out filled with left support filler 5 and right support
Material 15, plays sealing effect, while increasing the support force of left valve seat support 3 and right valve seat support 17.
When work, between left flange 2 and right flange 18, sphere 6 is set in the horizontal channel of valve body 1 valve body 1
Center, left valve seat 7 are set between left valve seat support 3 and sphere 6, and setting is left multiple between left valve seat support 3 and left flange 2
Position spring 4, right valve seat 14 are set between right flange 18 and sphere 6, and valve rod 12 is mounted in the vertical stuffing-box hole of valve body 1,
The lower end of valve rod 12 is connected with sphere 6, when valve rod 12 rotates under external force, sphere 6 is driven also to make accordingly
Rotation, when ball valve handle 13 straight down when, the T channel entrance of sphere 6 straight down two exit passageways be horizontal direction, at this time
Medium is passed through two outlets from import and communicates medium outflow, and when handle 13 turns left 90 degree in vertical direction, sphere 6 is corresponding to the left
90 degree of rotations of work, medium is passed through left end outlet from import and communicates medium outflow right end outlet closing at this time, when handle 13 is vertical
Direction turns right 90 degree, and sphere 6 is corresponding to make to the right 90 degree of rotations, and medium is passed through right end outlet from import and communicates medium flow field at this time
Left end outlet out is closed, and realizes opening or closing for low temperature three-way ball valve.When sphere 6 makees 90 rotary motion, with it
The left valve seat 7 and right valve seat 14 of contact do not rotate together, then there is friction between them, to make left valve seat 7 and right valve
Seat 14 is worn, and the seal preload of low temperature three-way ball valve reduces, valve exist leakage may, and left valve seat support 3 at this time
Setting reset spring between reset spring 4 and right valve seat support 17 and right flange 18 is arranged between left flange 2 just to work,
Left valve seat 7 comes into full contact with sphere 6 always with right valve seat 14 under the action of the reset spring, and pretightning force and reset spring
Precompression be consistent, to guarantee the sealed reliable of low temperature three-way valve.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of low temperature three-way ball valve, including valve body (1), which is characterized in that the inner wall of the valve body (1) is fixedly installed one
T-shaped pipeline, and valve body (1) is symmetrically fixed at the two sides of pipeline, the top of the valve body (1) is fixedly installed respectively
The top of left flange (2) and right flange (18), the left flange (2) and right flange (18) is respectively arranged with left valve seat support (3)
(17) are supported with right valve seat, the left valve seat supports (3) and right valve seat support (17) is respectively placed in the two sides of pipeline or more, described
The inside of the side of left valve seat support (3) and right valve seat support (17) is respectively arranged with left reset spring (4) and right reset spring
(16), it is provided with left valve seat (7) and right valve seat (14) between the left valve seat support (3) and right valve seat support (17) and pipeline,
It is movably set in the middle part of the pipeline sphere (6), one end of the sphere (6) is fixedly connected with valve rod (12).
2. a kind of low temperature three-way ball valve according to claim 1, which is characterized in that be fixedly installed on the valve rod (12)
Seal friction gasket (8).
3. a kind of low temperature three-way ball valve according to claim 1, which is characterized in that be arranged with filler on the valve rod (12)
Pressing sleeve (10) is filled with valve stem packing (9) on the bottom end valve rod (12) of the filler pressing sleeve (10).
4. a kind of low temperature three-way ball valve according to claim 1, which is characterized in that be provided with above the valve rod (12)
Valve rod disc spring (11).
5. a kind of low temperature three-way ball valve according to claim 1, which is characterized in that the top fixation of the valve rod (12) is set
It is equipped with handle (13).
6. a kind of low temperature three-way ball valve according to claim 1, which is characterized in that the left valve seat support (3) and right valve
The top of the side of seat supports (17) is filled with left support filler (5) and right support filler (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821383064.4U CN208670126U (en) | 2018-08-27 | 2018-08-27 | A kind of low temperature three-way ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821383064.4U CN208670126U (en) | 2018-08-27 | 2018-08-27 | A kind of low temperature three-way ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208670126U true CN208670126U (en) | 2019-03-29 |
Family
ID=65839547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821383064.4U Expired - Fee Related CN208670126U (en) | 2018-08-27 | 2018-08-27 | A kind of low temperature three-way ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208670126U (en) |
-
2018
- 2018-08-27 CN CN201821383064.4U patent/CN208670126U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20190329 Termination date: 20200827 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |