CN201588967U - Bellows ball valve - Google Patents
Bellows ball valve Download PDFInfo
- Publication number
- CN201588967U CN201588967U CN2009202825323U CN200920282532U CN201588967U CN 201588967 U CN201588967 U CN 201588967U CN 2009202825323 U CN2009202825323 U CN 2009202825323U CN 200920282532 U CN200920282532 U CN 200920282532U CN 201588967 U CN201588967 U CN 201588967U
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- China
- Prior art keywords
- valve
- bellows
- ball
- valve rod
- rod
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- 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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Abstract
The utility model discloses a bellows ball valve which comprises a valve body, valve covers, a valve seat, a ball body, a valve rod, a three-way handle and a handle steel tube, wherein the ball is positioned in the middle of the valve body, the valve covers are positioned at two sides of the valve body, the valve seat is arranged between the valve body and the ball body, the lower part of the valve rod passes through the valve body and is connected with the ball body, and the upper part thereof is connected with the three-way handle on which the handle steel tube is connected; the lower part of the ball body is also connected with a pivot; and the bellows ball valve is characterized in that the valve cover and the valve seat are connected by a valve seat bellows. The valve rod of the bellows ball valve can rotate by 90 degrees along the radial direction, and the bellows ball valve has long service life and good sealing performance, can meet the requirement of low leakage, resist the high temperature up to 425 DEG C as well as the ultralow temperature of minus 196 DEG C simultaneously, seal the valve rod under the double action of packing and the bellows, realize zero leakage of the valve and the outside, and can be widely applied to harsh occasions such as high temperature, ultralow temperature, flammable, explosive and poisonous working conditions.
Description
Technical field
The utility model relates to a kind of valve, has especially related to a kind of and has utilized bellows to realize the valve of the sealing and the driving conversion of ball valve.
Background technique
We know, ball valve is widely used in every field such as oil, chemical industry, iron and steel, metallurgy and electric power, between the valve seat and valve gap of existing ball valve, generally seal between Gland and the valve rod with rubber o-ring or graphite packing, rubber o-ring can not high temperature resistant or ultralow temperature, though the high low temperature of graphite ability but be unable to undergo switch, switch number of times more than, the time is once long leakage.We know as elastic sealing elements, have a wide range of applications in the valve manufacturing industry, as bellows gate valve and bellows stop valve etc.Bellows structure changes into the static seal of valve rod at the valve gap place with the motive sealing of valve rod at the stuffing box place, makes the sealing of valve more safe and reliable.Because can only bearing, metal bellows stretches and compression, and can not bear moment of torsion, therefore, present application only limits to also that stem movement is only done axial lifting and gate valve, stop valve and the safety valve etc. that do not take place radially to rotate, but ball valve has advantages such as littler flow resistance coefficient and faster switching speed with respect to gate valve, stop valve.
The model utility content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide the bellows ball valve of a kind of long service life, good seal performance, high temperature resistant, anti-ultralow temperature.
The utility model is achieved through the following technical solutions:
A kind of bellows ball valve, comprise valve body, valve gap, valve seat, spheroid, valve rod, threeway handle and handle steel pipe, wherein, spheroid is positioned in the middle of the valve body, valve gap is positioned at the valve body both sides, be provided with valve seat between valve gap and spheroid, above-mentioned stem lower portion is passed valve body and is connected with spheroid, and top is connected with the threeway handle, be connected with the handle steel pipe on the threeway handle, and the bottom of spheroid also is connected with pivot, it is characterized in that, is connected by the valve seat bellows between described valve gap and the valve seat.
Above-mentioned valve rod is divided into upper valve rod and lower valve rod, and upper valve rod is connected by ball screw with lower valve rod.
The top of above-mentioned ball screw is provided with and upper valve rod and corresponding Gland and the following Gland gone up of lower valve rod, fixedlys connected with following Gland upper end in last Gland lower end, and fixedly connected with valve body in the Gland lower end down.
Further, be provided with the valve rod bellows between above-mentioned ball screw and the following Gland.
The beneficial effects of the utility model are: the utility model is that valve rod can radially revolve the bellows ball valve that turn 90 degrees, its long service life, good seal performance, can satisfy the low requirement of leaking, the anti-high temperature that reaches 425 ℃, simultaneously also can anti-subzero 196 ℃ of ultralow temperature, double action by filler and bellows realizes valve stem seal, reaches valve and extraneous zero leakage, is widely used in the harsh occasion of high temperature, ultralow temperature, inflammable, explosive and poisonous operating mode.
Description of drawings
Fig. 1 is the utility model one embodiment's a structural representation.
Main reference character implication is among the figure:
1, valve gap 2 valve seat bellowss 3, valve seat 4, spheroid
5, pivot 6, valve body 7, seating spring 8, bolt
9, following Gland 10, valve rod bellows 11, ball screw 12, lower valve rod
13, go up Gland 4, upper valve rod 15, top flange
16, threeway handle 17, handle steel pipe
Embodiment
Below in conjunction with accompanying drawing, describe embodiment of the present utility model in detail:
Fig. 1 is the utility model one embodiment's a structural representation.
As shown in Figure 1: bellows ball valve, comprise valve body 6, valve gap 1, valve seat 3, spheroid 4, valve rod, threeway handle 16 and handle steel pipe 17, wherein, spheroid 4 is positioned in the middle of the valve body 6, and valve gap 1 is positioned at valve body 6 both sides, fixedlys connected by bolt 8 with valve body 6, between valve gap 1 and spheroid 4, be provided with valve seat 3, valve gap 1 then is connected sealing by valve seat bellows 2 with valve seat 3, also is provided with seating spring 7 between valve gap 1 and valve seat 3, and also is connected with pivot 5 in the bottom of spheroid 4.
Above-mentioned valve rod is divided into upper valve rod 14 and lower valve rod 12, upper valve rod 14 is connected by ball screw 11 with lower valve rod 12, and wherein, the bottom of lower valve rod 12 is passed valve body 6 and is connected with spheroid 4, the top of upper valve rod 14 is connected with threeway handle 16, is connected with handle steel pipe 17 on the threeway handle 16.
In addition, the top of above-mentioned ball screw 11 is provided with and upper valve rod 14 and lower valve rod 12 corresponding Gland 13 and the following Glands 9 gone up, fixedly connected with following Gland 9 upper ends in last Gland 13 lower ends, and fixedly connected with valve body 6 in Gland 9 lower ends down, and also be provided with valve rod bellows 10 between following Gland 9 and the ball screw 11, realize sealing.
In the time will closing ball valve, pull handle steel pipe 17 clockwise, it drives upper valve rod 14 by threeway handle 16 and clockwise rotates, spiral ball between upper valve rod 14 and the ball screw 11 is converted into rotatablely moving of upper valve rod 14 straight line motion that makes progress of ball screw 11 at this moment, and the spiral ball between ball screw 11 and the lower valve rod 12 is converted into the straight line motion that makes progress of ball screw 11 clockwise rotation of lower valve rod 12, lower valve rod 12 drives spheroid 4 rotations, and then throttle down.
By being closed to when opening, pull handle steel pipe 17 counterclockwise, it drives upper valve rod 14 by threeway handle 16 and rotates counterclockwise, spiral ball between upper valve rod 14 and the ball screw 11 is converted into rotatablely moving of upper valve rod 14 the downward straight line motion of ball screw 11 at this moment, and the spiral ball is converted into the motion that is rotated counterclockwise of lower valve rod 12 to the downward straight line motion of ball screw 11 between ball screw 11 and the lower valve rod 12, and lower valve rod 12 drives spheroids 4 and rotarily opens valve.
In addition, owing to be connected with valve seat bellows 2 between valve seat 3 and the valve gap 1, medium can't pass through the clearance leakage between valve seat 3 and the valve gap 1 when valve closing; Valve no matter when opening or closing, following Gland 9, valve rod bellows 10 and ball screw 1) three forms the cavity of a sealing, medium can't let out.
The utility model has increased the using scope of ball valve, is highly suitable for bad working environments and poisonous medium operating mode situation.
Below disclose the utility model with preferred embodiment, so it is not in order to restriction the utility model, and all employings are equal to replaces or technological scheme that the equivalent transformation mode is obtained, all drops within the protection domain of the present utility model.
Claims (4)
1. bellows ball valve, comprise valve body, valve gap, valve seat, spheroid, valve rod, threeway handle and handle steel pipe, wherein, spheroid is positioned in the middle of the valve body, valve gap is positioned at the valve body both sides, be provided with valve seat between valve gap and spheroid, above-mentioned stem lower portion is passed valve body and is connected with spheroid, and top is connected with the threeway handle, be connected with the handle steel pipe on the threeway handle, and the bottom of spheroid also is connected with pivot, it is characterized in that, is connected by the valve seat bellows between described valve gap and the valve seat.
2. bellows ball valve according to claim 1 is characterized in that described valve rod is divided into upper valve rod and lower valve rod, and upper valve rod is connected by ball screw with lower valve rod.
3. bellows ball valve according to claim 2, it is characterized in that, the top of described ball screw is provided with and upper valve rod and corresponding Gland and the following Gland gone up of lower valve rod, fixedly connected with following Gland upper end in last Gland lower end, and fixedly connected with valve body in the Gland lower end down.
4. bellows ball valve according to claim 3 is characterized in that, is provided with the valve rod bellows between described ball screw and the following Gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202825323U CN201588967U (en) | 2009-12-25 | 2009-12-25 | Bellows ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202825323U CN201588967U (en) | 2009-12-25 | 2009-12-25 | Bellows ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201588967U true CN201588967U (en) | 2010-09-22 |
Family
ID=42748748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202825323U Expired - Lifetime CN201588967U (en) | 2009-12-25 | 2009-12-25 | Bellows ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201588967U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761663B (en) * | 2009-12-25 | 2011-08-10 | 昆山维萨阀门有限公司 | Bellows ball valve |
| CN102927308A (en) * | 2011-08-13 | 2013-02-13 | 余金贤 | High-temperature and high-pressure rigid sealing ball valve |
| WO2015010381A1 (en) * | 2013-07-23 | 2015-01-29 | 浙江石化阀门有限公司 | Super-high temperature rigidity seal ball valve |
| CN107795705A (en) * | 2017-11-21 | 2018-03-13 | 浙江工贸职业技术学院 | A kind of efficient sealed erosion resistance ball valve |
-
2009
- 2009-12-25 CN CN2009202825323U patent/CN201588967U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761663B (en) * | 2009-12-25 | 2011-08-10 | 昆山维萨阀门有限公司 | Bellows ball valve |
| CN102927308A (en) * | 2011-08-13 | 2013-02-13 | 余金贤 | High-temperature and high-pressure rigid sealing ball valve |
| WO2015010381A1 (en) * | 2013-07-23 | 2015-01-29 | 浙江石化阀门有限公司 | Super-high temperature rigidity seal ball valve |
| US9447898B1 (en) | 2013-07-23 | 2016-09-20 | Zhejiang Petrochemical Valve Co., Ltd. | Ultra-high temperature rigidity seal ball valve |
| CN107795705A (en) * | 2017-11-21 | 2018-03-13 | 浙江工贸职业技术学院 | A kind of efficient sealed erosion resistance ball valve |
| CN107795705B (en) * | 2017-11-21 | 2019-05-17 | 浙江工贸职业技术学院 | A kind of efficient sealed erosion resistance ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100922 Effective date of abandoning: 20091225 |