CN207864680U - Ultra-low temperature ball valve - Google Patents
Ultra-low temperature ball valve Download PDFInfo
- Publication number
- CN207864680U CN207864680U CN201721737682.XU CN201721737682U CN207864680U CN 207864680 U CN207864680 U CN 207864680U CN 201721737682 U CN201721737682 U CN 201721737682U CN 207864680 U CN207864680 U CN 207864680U
- Authority
- CN
- China
- Prior art keywords
- valve
- sphere
- valve seat
- valve body
- low temperature
- 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 - Fee Related
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Abstract
The utility model discloses a kind of ultra-low temperature ball valves, including valve body, sphere, center valve body, valve rod and executing agency.There is the valve body inlet and outlet, the center valve body to be internally provided with cavity, and the sphere is set in the cavity of center valve body, and the sphere contacts with each other with sphere fixed seat.One end of the valve rod is connect with sphere, and the other end of valve rod is connect with executing agency, and the executing agency drives sphere to rotate by valve rod.It is equipped with import valve seat between the import and sphere of the valve body, the first valve seat insert is provided on the left of import valve seat；It is equipped with outlet valve seat between the outlet and sphere of the valve body, the second valve seat insert is provided on the right side of outlet valve seat.Ultra-low temperature ball valve disclosed by the utility model has the characteristics that intensity is high, valve stem seal is reliable, compact-sized, service life is long and has fire-proof function.
Description
Technical field
The utility model belongs to marine valve technical field, and in particular to a kind of ultra-low temperature ball valve.
Background technology
The rapid development of global industry makes low temperature ball purposes more and more wider, and demand is also increasing.Subzero valve work
Make condition harshness, especially in petroleum chemical industry, LNG ship oceangoing ship industry, the medium of low temperature is not only inflammable and explosive, and temperature increases
When can also gasify, volume expansion several times.The leakage of cryogenic media not only causes enterprises' loss in production, but also hazardous medium leaks
Environment and personnel health can also be endangered.
Therefore, it is necessary to pay much attention to the leakage problem of Subzero valve, the especially problem of leakage of Subzero valve and fire prevention is asked
Topic.
Utility model content
The utility model is directed to the situation of the prior art, provides a kind of ultra-low temperature ball valve.
The utility model uses following technical scheme, and the ultra-low temperature ball valve includes valve body, sphere, center valve body, valve rod
And executing agency, wherein：
There is the valve body inlet and outlet, the center valve body to be internally provided with cavity, and the sphere is set to intermediate valve
In the cavity of body, the sphere contacts with each other with sphere fixed seat；
One end of the valve rod is connect with sphere, and the other end of valve rod is connect with executing agency, and the executing agency passes through
Valve rod drives sphere rotation；
It is equipped with import valve seat between the import and sphere of the valve body, it is close that the first valve seat is provided on the left of import valve seat
Seal；It is equipped with outlet valve seat between the outlet and sphere of the valve body, the second valve base sealing is provided on the right side of outlet valve seat
Circle；First and second valve seat insert contacts with each other to form sealing surface with sphere respectively.
According to above-mentioned technical proposal, first and second valve seat insert is all made of low temperature resistant PCTFE materials and is made.
According to above-mentioned technical proposal, valve seat preloading spring is evenly distributed in the left end face of the import valve seat.
According to above-mentioned technical proposal, the import valve seat and outlet valve seat are equipped with fire proof seal close to the side of valve body
Circle.
According to above-mentioned technical proposal, the valve rod is equipped with packing seal structure with structural attachments are executed, and the filler is close
Seal structure includes filler, Packing seat, casing and gland.
According to above-mentioned technical proposal, the filler is made of tetrafluoroethene material.
Ultra-low temperature ball valve disclosed by the utility model, advantage are that with intensity height, valve stem seal is reliable, ties
Structure is compact, service life is long and has the characteristics that fire-proof function.
Description of the drawings
Fig. 1 is the sectional structure chart of the preferred embodiment in the utility model.
Fig. 2 be I in Fig. 1 at local structural graph.
Fig. 3 be II in Fig. 1 at local structural graph.
Reference numeral includes：1- valve bodies；2- import valve seats；The first valve seat inserts of 3-；4- spheres；5- sphere fixed seats；
6- center valve bodies；7- bonnet,s；8- Packing seats；9- fillers；10- glands；11- executing agencies；12- butterfly springs；13- covers
Pipe；14- drain pans；15- valve rods；16- upper valve sealing cushion for cover；17- anti-static springs；18- valve seal pads；19- fillers；20-
Valve body bolt；21- valve stem seal pads；22- fixed pin shafts；23- valve seat preloading springs；24- fire proof seal circles；25- outlet valve seats；
The second valve seat inserts of 26-.
Specific implementation mode
The utility model discloses a kind of ultra-low temperature ball valves, with reference to preferred embodiment, to the specific of the utility model
Embodiment is further described.
The cross-section structure of the ultra-low temperature ball valve is shown to Fig. 3, Fig. 1 referring to Figure 1 of the drawings.Preferably, described ultralow
Warm ball valve includes valve body 1, sphere 4, center valve body 6, valve rod 15 and executing agency 11.
Wherein, there is the valve body 1 inlet and outlet, the center valve body 6 to be internally provided with cavity, and sphere 4 is set to institute
In the cavity for stating center valve body 6, the sphere 4 contacts with each other with sphere fixed seat 5, and the sphere 4 is given with sphere fixed seat 5
It is fixed.
Wherein, one end of the valve rod 15 is connect with sphere 4, and the other end of valve rod 15 is connect with executing agency 11, described
Executing agency 11 drives sphere 4 to rotate by valve rod 15, realizes the switch of ball valve.
Wherein, it is equipped with import valve seat 2 between 1 import of the valve body and sphere 4, the left side of import valve seat 2 is provided with the
One valve seat insert 3.It is equipped with outlet valve seat 25 between the outlet and sphere 4 of the valve body 1, is arranged on the right side of outlet valve seat 25
There is the second valve seat insert 26.
Wherein, first and second valve seat insert 3,26 contacts with each other to form sealing surface with sphere 4 respectively, this solid
Good sealing performance can be had by determining sealing ring.
Wherein, first and second valve seat insert 3,26 is all made of low temperature resistant PCTFE materials and is made.Fire occurs
When, after PCTFE material combustions are complete, under the action of pipeline internal medium pressure and spring force, push valve seat to sphere 4, in this way
Valve seat forms sealing structure with sphere 4, media flow is prevented, to prevent flare stream string.
Wherein, it is evenly distributed with valve seat preloading spring 23 in the left end face of the import valve seat 2.
Wherein, the import valve seat 2 and outlet valve seat 25 are equipped with fire proof seal circle 24 close to the side of valve body 1, can protect
Demonstrate,prove the fire protecting performance and sealing performance of product.
Wherein, the valve rod 15 is equipped with packing seal structure, the packing seal structure packet with 11 junction of structure is executed
Filler 19, Packing seat 8, casing 13 and gland 10 are included, to fix filler 19.
Wherein, the filler 19 is made of tetrafluoroethene material.
Wherein, the setting of the filler 19 is in bottom, the top setting casing 13 and butterfly spring 12 of the filler 19；It is this
Special filling-material structure, which can either keep good sealing performance also, can ensure the intensity of filler, to improve the use of filler
Service life.
It is noted that the first and second valve seat inserts 3,26 are made of resistance to ultralow adiabator PCTFE materials, energy
Ensure that ball valve keeps good sealing performance under ultralow temperature.After PCTFE material combustions are complete, pass through pipeline internal medium pressure and bullet
Under the action of spring force, can guarantee directly can be with the valve seat of ball seal after sealing material is burnt.In order to ensure the close of filler
Sealing property increases butterfly spring and casing at filler, by the pressing force of gland, ensure that butterfly spring is pressed always
Tight filler ensures the sealing performance between valve rod and filler.Ultra-low temperature ball valve disclosed by the utility model, assembly are easy, to behaviour
The skill set requirements of workmanship are relatively low.
For a person skilled in the art, the technical solution recorded in foregoing embodiments can still be repaiied
Change or equivalent replacement of some of the technical features, within the spirit and principle of the utility model, made by it is any
Modification, equivalent replacement, improvement etc., should be included in the scope of protection of the utility model.
Claims (6)
1. a kind of ultra-low temperature ball valve, which is characterized in that including valve body, sphere, center valve body, valve rod and executing agency, wherein：
There is the valve body inlet and outlet, the center valve body to be internally provided with cavity, and the sphere is set to center valve body
In cavity, the sphere contacts with each other with sphere fixed seat；
One end of the valve rod is connect with sphere, and the other end of valve rod is connect with executing agency, and the executing agency passes through valve rod
Drive sphere rotation；
It is equipped with import valve seat between the import and sphere of the valve body, the first valve base sealing is provided on the left of import valve seat
Circle；It is equipped with outlet valve seat between the outlet and sphere of the valve body, the second valve seat insert is provided on the right side of outlet valve seat；
First and second valve seat insert contacts with each other to form sealing surface with sphere respectively.
2. ultra-low temperature ball valve according to claim 1, which is characterized in that first and second valve seat insert is all made of
PCTFE materials are made.
3. ultra-low temperature ball valve according to claim 1, which is characterized in that uniformly divide in the left end face of the import valve seat
It is furnished with valve seat preloading spring.
4. ultra-low temperature ball valve according to claim 1, which is characterized in that the import valve seat and outlet valve seat are close to valve body
Side be equipped with fire proof seal circle.
5. ultra-low temperature ball valve according to claim 1, which is characterized in that the valve rod is equipped with execution structural attachments and fills out
Expect sealing structure, the packing seal structure includes filler, Packing seat, casing and gland.
6. ultra-low temperature ball valve according to claim 5, which is characterized in that the filler is made of tetrafluoroethene material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721737682.XU CN207864680U (en) | 2017-12-14 | 2017-12-14 | Ultra-low temperature ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721737682.XU CN207864680U (en) | 2017-12-14 | 2017-12-14 | Ultra-low temperature ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207864680U true CN207864680U (en) | 2018-09-14 |
Family
ID=63468901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721737682.XU Expired - Fee Related CN207864680U (en) | 2017-12-14 | 2017-12-14 | Ultra-low temperature ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207864680U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848412A (en) * | 2019-11-29 | 2020-02-28 | 同济大学 | Application of negative expansion material in low-temperature valve |
| CN113551055A (en) * | 2021-07-27 | 2021-10-26 | 凯瑞特阀业有限公司 | Ultra-low temperature integrated ball valve |
| CN113864475A (en) * | 2021-09-28 | 2021-12-31 | 凯瑞特阀业有限公司 | Flow adaptation structure of ultra-low temperature integral type ball valve |
-
2017
- 2017-12-14 CN CN201721737682.XU patent/CN207864680U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848412A (en) * | 2019-11-29 | 2020-02-28 | 同济大学 | Application of negative expansion material in low-temperature valve |
| CN113551055A (en) * | 2021-07-27 | 2021-10-26 | 凯瑞特阀业有限公司 | Ultra-low temperature integrated ball valve |
| CN113551055B (en) * | 2021-07-27 | 2023-08-25 | 凯瑞特阀业集团有限公司 | Ultra-low temperature integral ball valve |
| CN113864475A (en) * | 2021-09-28 | 2021-12-31 | 凯瑞特阀业有限公司 | Flow adaptation structure of ultra-low temperature integral type ball 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 |
Granted publication date: 20180914 Termination date: 20201214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |