CN205207884U - Sealing device of valve - Google Patents
Sealing device of valve Download PDFInfo
- Publication number
- CN205207884U CN205207884U CN201521016865.3U CN201521016865U CN205207884U CN 205207884 U CN205207884 U CN 205207884U CN 201521016865 U CN201521016865 U CN 201521016865U CN 205207884 U CN205207884 U CN 205207884U
- Authority
- CN
- China
- Prior art keywords
- seal
- valve rod
- valve
- ring
- shaft shoulder
- 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
Links
Landscapes
- Lift Valve (AREA)
Abstract
The utility model discloses a sealing device of valve, sealing device of valve includes: valve rod, valve stem frame, the valve rod is installed on valve stem frame, be equipped with the screw thread on the valve rod, screw thread department on the valve rod is equipped with the shaft shoulder, the shaft shoulder passes through the screw thread and installs on the valve rod, valve stem frame's inner wall is equipped with the convex shoulder, install on the convex shoulder in the valve stem frame and keep off the ring, be equipped with mechanical seal between the shaft shoulder on the valve rod and the ring of the fender on the valve stem frame inner wall. The utility model discloses a technique aim at provides a valve seal device that is equipped with mechanical seal between valve rod and valve stem frame, reduces the moment of valve switch, and this kind of sealing device can reduce the security of revealing, increase the valve of valve.
Description
Technical field
The utility model relates to valve field, particularly a kind of seal arrangement of valve.
Background technique
Valve is the equipment for liquid control system, valve is varied, no matter be on industry equipment, or on housed device, valve is nearly all ubiquitous, valve is in fluid system, be used for controlling the direction of fluid, pressure, flow device be the medium in pipe arrangement and equipment (liquid, gas, powder) is flowed or stops and the device of its flow can be controlled.
Valve main rising on pipeline is cut off and throttling action.Valve is controlling component in pipeline fluid transporting system, and it is used to change path section and media flow direction, has the functions such as water conservancy diversion, cut-off, throttling, non-return, shunting or overflow release.For the valve that fluid controls, various valves used from the simplest stop valve to very complicated robot control system(RCS), its kind and specification various, the inside nominal diameter of valve reaches greatly the industrial pipeline valve of 10m to latus rectum from atomic little Gauge Valves.Can be used for controlling all kinds such as water, steam, oil product, gas, mud, various Korrosionsmedium, liquid metal and radioactive fluid fluidly to flow.
Valve usually can be revealed in fed sheet of a media process; usually the danger medium leaked out can cause produces dangerous accident generation; the valve rod of conventional valves and the sealing at valve rod frame place have small leakage usually; particularly packing seal; packing seal is very large to the frictional force of valve rod; packing seal can increase the moment of torsion that valve rod rotates, and after Long-Time Service, gland sealed sealing effect declines very fast.
Model utility content
For the deficiency existed in above-mentioned technology, technical purpose of the present utility model is to provide a kind of valve sealing device being provided with mechanical seal between valve rod and valve rod frame, reducing the moment of valve switch, and this seal arrangement can reduce the leakage of valve, increase the Security of valve.
The utility model is achieved through the following technical solutions:
A kind of seal arrangement of valve, the seal arrangement of described valve comprises: valve rod, valve rod frame, described valve rod is arranged on valve rod frame, described valve rod is provided with screw thread, screw thread place on described valve rod is provided with the shaft shoulder, and the described shaft shoulder is arranged on valve rod by screw thread, and the inwall of described valve rod frame is provided with convex shoulder, convex shoulder in described valve rod frame is provided with baffle ring, between the baffle ring on the shaft shoulder on described valve rod and valve rod frame inwall, is provided with mechanical seal.
In technique scheme, by being provided with screw thread on valve rod, valve rod is provided with the shaft shoulder, make it possible to the rotating ring better installing mechanical seal, and the spacing between rotating ring and stationary ring can be regulated by screw thread, the baffle ring that the convex shoulder be provided with in valve rod frame is installed, the stationary ring of mechanical seal can be installed better, rotating ring can coordinate with stationary ring, reach the object of sealing, the inwall of valve rod frame is provided with dismountable convex shoulder, make when client does not need mechanical seal and wants packing seal, the shaft shoulder on convex shoulder and valve rod can be removed and reach and form gland sealed object.
Further, the mechanical seal be provided with between described valve rod and valve rod frame, described mechanical seal comprises stationary ring, rotating ring, described stationary ring is arranged in baffle ring, described stationary ring coordinates with the shaft shoulder on valve rod to be installed, and described mechanical seal is non-integrated mechanical sealing, and the sealed material of described mechanical seal is silicon carbide, Tungsten carbite or aluminium oxide, the spring materials of described mechanical seal is stainless steel, and the seal ring material in described mechanical seal is fluorine rubber or nitrile butadiene rubber.
Further, described in be located between stationary ring in mechanical seal and baffle ring and be provided with O type rubber seal, be provided with O type rubber seal between described rotating ring and the shaft shoulder, the material of described O type rubber seal is fluorine rubber or nitrile butadiene rubber.
Further, the described shape of the shaft shoulder installed that coordinates with mechanical seal is annulus, the inner ring surface of the described shaft shoulder is provided with screw thread, described screw thread is fine thread, the end face that the described shaft shoulder coordinates with mechanical seal is provided with seal groove, be provided with O type rubber seal in described seal groove, the material of the described shaft shoulder is metal material.
Further, the described shape of the baffle ring installed that coordinates with mechanical seal is ring, and the endoporus of described baffle ring has seal groove, is provided with O type rubber seal in described seal groove, and the material of described baffle ring is metal material.
In technique scheme, select non-integrated mechanical sealing can regulate according to the different conditions of valve, the cost of usual non-integrated mechanical sealing is also more cheap, seal ring material in mechanical seal can be selected according to different real requirements, the performance of fluorine rubber wall nitrile butadiene rubber is good, usual also more expensive, the fine thread be provided with can be finely tuned the position of rotating ring.
The beneficial effects of the utility model are:
1, adopt mechanical seal by the sealing between the valve rod and valve rod frame of valve, make the sealability of valve better, reduce the leakage of valve, improve the Security of valve, and the moment of valve open/closedown can be reduced, improve the operability of valve;
2, along the structure of valve rod shaft axis movement, can finely tune the rotating ring of mechanical seal by the shaft shoulder is set to, make the sealing at valve rod and valve rod frame place can be more reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation of model utility.
Mark in figure: 1 be valve rod frame, 2 be valve rod, 3 be the shaft shoulder, 4 be baffle ring, 5 for mechanical seal.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
The seal arrangement of valve as shown in Figure 1, the seal arrangement of described valve comprises: valve rod frame 1, valve rod 2, the shaft shoulder 3, baffle ring 4, mechanical seal 5, described valve rod 2 is arranged on valve rod frame 1, described valve rod 2 is provided with screw thread, screw thread place on described valve rod 2 is provided with the shaft shoulder 3, the described shaft shoulder 3 is arranged on valve rod 2 by screw thread, the inwall of described valve rod frame 1 is provided with convex shoulder, convex shoulder in described valve rod frame 1 is provided with baffle ring 4, between the baffle ring 4 on the shaft shoulder 3 on described valve rod 2 and valve rod frame 1 inwall, is provided with mechanical seal 5;
The mechanical seal 5 be provided with between described valve rod 2 and valve rod frame 1, described mechanical seal 5 comprises stationary ring 5-1, rotating ring 5-2, described stationary ring 5-1 is arranged in baffle ring 4, described stationary ring 5-1 coordinates with the shaft shoulder 3 on valve rod 2 and installs, described mechanical seal 5 is non-integrated mechanical sealing, the sealed material of described mechanical seal 5 is silicon carbide, and the spring materials of described mechanical seal 5 is 30Cr13 material, and the seal ring material in described mechanical seal 5 is fluorine rubber;
Described being located between stationary ring 5-1 in mechanical seal 5 and baffle ring 4 is provided with O type rubber seal, and be provided with O type rubber seal between described rotating ring 5-2 and the shaft shoulder 3, the material of described O type rubber seal is fluorine rubber;
Describedly the shape of the shaft shoulder 3 installed is coordinated to be annulus with mechanical seal 5, the inner ring surface of the described shaft shoulder 3 is provided with screw thread, described screw thread is fine thread, the end face that the described shaft shoulder 3 coordinates with mechanical seal 5 is provided with seal groove, be provided with O type rubber seal in described seal groove, the material of the described shaft shoulder 3 is 304 materials;
Describedly coordinate the shape of the baffle ring 4 installed to be ring with mechanical seal 5, the endoporus of described baffle ring 4 has seal groove, is provided with O type rubber seal in described seal groove, and the material of described baffle ring 4 is 304 materials.
Stationary ring 5-1 and O type rubber seal are first arranged in baffle ring 4 by the seal arrangement of this valve, and then baffle ring 4 is together arranged on valve rod frame 1 inside, and then the shaft shoulder 3 is arranged on valve rod 2, again O type rubber seal and rotating ring 5-2 are together arranged in stem shaft 2, and then valve rod 2 is together arranged in valve rod frame 1 together with O type rubber seal and rotating ring 5-2.
Claims (5)
1. the seal arrangement of a valve, the seal arrangement of described valve comprises: valve rod (2), valve rod frame (1), described valve rod (2) is arranged on valve rod frame (1), it is characterized in that, described valve rod (2) is provided with screw thread, screw thread place on described valve rod (2) is provided with the shaft shoulder (3), the described shaft shoulder (3) is arranged on valve rod (2) by screw thread, the inwall of described valve rod frame (1) is provided with convex shoulder, convex shoulder in described valve rod frame (1) is provided with baffle ring (4), mechanical seal (5) is provided with between the shaft shoulder (3) on described valve rod (2) and the baffle ring (4) on valve rod frame (1) inwall.
2. the seal arrangement of valve according to claim 1, it is characterized in that, the mechanical seal (5) be provided with between described valve rod (2) and valve rod frame (1), described mechanical seal (5) comprises stationary ring (5-1), rotating ring (5-2), described stationary ring (5-1) is arranged in baffle ring (4), described stationary ring (5-1) coordinates with the shaft shoulder (3) on valve rod (2) to be installed, described mechanical seal (5) is non-integrated mechanical sealing, the sealed material of described mechanical seal (5) is silicon carbide, Tungsten carbite or aluminium oxide, the spring materials of described mechanical seal (5) is stainless steel, seal ring material in described mechanical seal (5) is fluorine rubber or nitrile butadiene rubber.
3. the seal arrangement of valve according to claim 2, it is characterized in that, described being located between stationary ring (5-1) in mechanical seal (5) and baffle ring (4) is provided with O type rubber seal, be provided with O type rubber seal between described rotating ring (5-2) and the shaft shoulder (3), the material of described O type rubber seal is fluorine rubber or nitrile butadiene rubber.
4. the seal arrangement of valve according to claim 3, it is characterized in that, the described shape coordinating the shaft shoulder (3) installed with mechanical seal (5) is annulus, the inner ring surface of the described shaft shoulder (3) is provided with screw thread, described screw thread is fine thread, the end face that the described shaft shoulder (3) coordinates with mechanical seal (5) is provided with seal groove, is provided with O type rubber seal in described seal groove, and the material of the described shaft shoulder (3) is metal material.
5. the seal arrangement of valve according to claim 4, it is characterized in that, the described shape coordinating the baffle ring (4) installed with mechanical seal (5) is ring, the endoporus of described baffle ring (4) has seal groove, be provided with O type rubber seal in described seal groove, the material of described baffle ring (4) is metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521016865.3U CN205207884U (en) | 2015-12-09 | 2015-12-09 | Sealing device of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521016865.3U CN205207884U (en) | 2015-12-09 | 2015-12-09 | Sealing device of valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205207884U true CN205207884U (en) | 2016-05-04 |
Family
ID=55845601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521016865.3U Expired - Fee Related CN205207884U (en) | 2015-12-09 | 2015-12-09 | Sealing device of valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205207884U (en) |
-
2015
- 2015-12-09 CN CN201521016865.3U patent/CN205207884U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105508720A (en) | Corrugated pipe stop valve for photo-thermal electricity generation fused salt | |
| CN205207884U (en) | Sealing device of valve | |
| CN104676012A (en) | Bilateral balanced sealing ring component for sleeve valve | |
| CN205078800U (en) | Butterfly valve | |
| CN205401796U (en) | Ultra -low temperature ball valve that floats | |
| CN205001535U (en) | Double containment flanged gate valve | |
| CN204721756U (en) | For the sealed terminal box of pneumatic operated valve | |
| CN205896214U (en) | Stop valve with pressure release function | |
| CN205207883U (en) | Sealed dust keeper of valve | |
| CN204140916U (en) | Sandwich valve | |
| CN210623581U (en) | Stop valve | |
| CN106855151A (en) | A kind of sealing device of valve | |
| CN205618684U (en) | High sealed valve | |
| CN205207719U (en) | Run -in gate valve | |
| CN205207882U (en) | Dust keeper of valve | |
| CN204610847U (en) | The bidirectional balanced ring assembly of telescoping valve | |
| CN201487256U (en) | Screw-in forged type high-pressure anti-cavitation low-flow angle valve | |
| CN107642627A (en) | A kind of stop valve for being capable of pressure release | |
| CN204328110U (en) | A kind of novel pressure modulating valve | |
| CN203176376U (en) | Multi-level sealing stop valve | |
| CN204387477U (en) | Bellows ball valve | |
| CN204175970U (en) | Stop valve | |
| CN215806318U (en) | Double-sealing stop valve | |
| CN210978679U (en) | Pneumatic hydraulic high-pressure valve | |
| CN220248956U (en) | Butterfly valve with good sealing effect |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Dapeng Inventor before: Li Yan |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170503 Address after: 519060 Guangdong Province, Zhuhai City, the former mountain Jinji Road, building 1, unit 301, room 685, room 10 Patentee after: Zhuhai Jing run automation equipment Co. Ltd. Address before: 610000 Chengdu City, Wuhou District Province, the South Ring Road, No. two, No. 1, No. 1, floor 31, No. 5 Patentee before: CHENGDU DESHANNENG TECHNOLOGY CO., LTD. |
|
| 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: 20160504 Termination date: 20171209 |