CN205207721U - Parallel gate valve - Google Patents
Parallel gate valve Download PDFInfo
- Publication number
- CN205207721U CN205207721U CN201521014139.8U CN201521014139U CN205207721U CN 205207721 U CN205207721 U CN 205207721U CN 201521014139 U CN201521014139 U CN 201521014139U CN 205207721 U CN205207721 U CN 205207721U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- flashboard
- rod frame
- stem
- 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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- Details Of Valves (AREA)
- Sliding Valves (AREA)
Abstract
The utility model discloses a parallel gate valve, be equipped with disk seat and flashboard in the valve body, the top at the flashboard is installed to the bottom of valve rod, valve stem frame installs the top at the valve body, the flashboard is flashboard parallel mutually, the flashboard is the double -gate plate structure, the flashboard of the end of intaking of flashboard is equipped with pressure relief device, valve stem frame divide into valve stem frame and lower valve stem frame, be equipped with stem seal between valve rod and the lower valve stem frame, go up valve stem frame's top and install valve -stem nut, the last gland of installing of valve -stem nut, the valve rod is equipped with the trapezoidal thread with valve -stem nut's cooperation department, the top of valve rod is equipped with the hand wheel. The utility model discloses a parallel gate valve that technique aim at provides one kind, and sealing performance is better, totally closed, the pumped (conveying) medium resistance is littleer, can automatic pressure release, this kind of gate valve can make pipe -line system more reliable.
Description
Technical field
The utility model relates to valve field, particularly a kind of double disk parallel gate valve.
Background technique
Gate valve is an open-shut device flashboard, and moving direction and the flow direction of flashboard are perpendicular, and gate valve can only make standard-sized sheet and complete shut-down, and when gate valve is closed, sealing surface can only rely on pressure medium to seal, and namely only relies on medium
The sealing surface of flashboard is pressed to the valve seat of opposite side to ensure the sealing of sealing surface by pressure, selfsealings that Here it is.Major part gate valve adopts forced seal, namely during valve closing, external force be relied on by force flashboard to be pressed to valve seat, to ensure
sealingthe sealing in face.
Gate valve have flow resistance little, when opening and closing more laborsaving, medium can to two any directions flowings, be easy to advantages such as installing, body is simple, good manufacturability, structure length are less, this also makes gate valve usage range very wide, but common gate valve is easily revealed, valve seat easily damages, comparatively large to the flow resistance of medium, can not the shortcoming such as releasing pressure automatically.
Model utility content
For the deficiency that above-mentioned gate valve exists, technical purpose of the present utility model is to provide that a kind of sealability is better, totally-enclosed, fed sheet of a media resistance is less, can self-relieving double disk parallel gate valve, this gate valve can make pipe-line system more reliable.
The utility model is achieved through the following technical solutions:
A kind of double disk parallel gate valve, described double disk parallel gate valve comprises: valve body, flashboard, valve rod frame and valve rod, valve seat and flashboard is provided with in described valve body, the bottom of described valve rod is arranged on the top of flashboard, described valve rod frame is arranged on the top of valve body, described flashboard is flashboard parallel to each other, described flashboard is double-flashboard structure, the flashboard of the feed-water end of described flashboard is provided with pressure relief device, described valve rod frame is divided into upper valve rod frame and lower valve rod frame, valve stem seal is provided with between described valve rod and lower valve rod frame, the top of described upper valve rod frame is provided with Stem Mut, described Stem Mut is provided with gland, the cooperation place of described valve rod and Stem Mut is provided with trapezoidal thread, the top of described valve rod is provided with handwheel.
Further, described in be installed on the valve seat in valve body quantity be 2, the material of described valve seat is metal material.
Further, described upper valve rod frame is arranged on the top of lower valve rod frame, described lower valve rod frame is arranged on the top of valve body, Flange joint is passed through in the connection of described upper valve rod frame and lower valve rod frame, lower valve rod frame and valve body, be provided with gasket seal between described flange, institute's gasket seal is wavy metal gasket seal.
Further, described in the valve stem seal be located between valve rod and lower valve rod frame be sylphon seal, described bellows is metal bellows.
Further, described valve rod is provided with guide sleeve, and the bottom of upper valve rod frame is located at by described guide sleeve, and the material of described guide sleeve is metal material, is added with oiling agent in described guide sleeve.
Further, described gland is arranged on the top of upper valve rod frame, is provided with seal ring between described gland and valve rod.
The beneficial effects of the utility model are:
1, by flashboard being set to the double-flashboard structure of parallel type, be provided with the valve seat of two metal materials, two flashboards contact with two valve seats respectively and form two seals face, and make the sealing of gate valve more reliable, valve seat is more durable, during by flashboard standard-sized sheet, medium channel is straight line, can reduce linear loss, and the flashboard of feed-water end is provided with pressure relief device, can releasing pressure automatically, better conservative management system;
2, by valve rod frame is divided into upper valve rod frame and lower valve rod frame, make it possible to each parts of gate valve more convenient to install, valve stem seal is provided with between valve rod and lower valve rod frame, the top of upper valve rod frame is located at by Stem Mut, make it possible to carry out reliable sealing to valve rod, and the driving mechanism of Stem Mut can not be affected, make gate valve more reliable;
3, by being provided with gland on Stem Mut, gland being provided with seal ring, making gate valve hermetically sealed, the reliability of gate valve is improved.
Accompanying drawing explanation
Fig. 1 is the structural representation of model utility.
Mark in figure: 1 be valve body, 2 be valve plate, 3 for valve rod frame, 3-1 be lower valve rod frame, 3-2 be upper valve rod frame, 4 is valve rod, 5 be valve seat, 6 be valve stem seal, 7 be handwheel, 8 be Stem Mut, 9 be gland.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
A kind of double disk parallel gate valve as shown in Figure 1, described double disk parallel gate valve comprises: valve body 1, valve plate 2, valve rod frame 3, lower valve rod frame 3-1, upper valve rod frame 3-2, valve rod 4, valve seat, 5 valve stem seals 6, handwheel 7, Stem Mut 8, gland 9, state in valve body 1 and be provided with valve seat 5 and flashboard 2, the bottom of described valve rod 4 is arranged on the top of flashboard 2, described valve rod frame 3 is arranged on the top of valve body 1, described flashboard 2 is flashboard parallel to each other, described flashboard 2 is double-flashboard structure, the flashboard of the feed-water end of described flashboard 2 is provided with pressure relief device, described valve rod frame 3 is divided into upper valve rod frame 3-2 and lower valve rod frame 3-1, valve stem seal 6 is provided with between described valve rod 4 and lower valve rod frame 3-1, the top of described upper valve rod frame 3-2 is provided with Stem Mut 8, described Stem Mut 8 is provided with gland 9, described valve rod 4 is provided with trapezoidal thread with the cooperation place of Stem Mut 8, the top of described valve rod 4 is provided with handwheel 10,
Wherein, by flashboard being set to the double-flashboard structure of parallel type, the valve seat of two metal materials is provided with; two flashboards contact with two valve seats respectively and form two seals face; make the sealing of gate valve more reliable, valve seat is more durable, during by flashboard standard-sized sheet; medium channel is straight line; can linear loss be reduced, the flashboard of feed-water end is provided with pressure relief device, can releasing pressure automatically; conservative management system better, the trapezoidal thread be provided with can control moving up and down of valve rod.
The quantity of the described valve seat 5 be installed in valve body 1 is 2, and the material of described valve seat 5 is metal material.
Wherein, by being provided with two valve seats 5 in valve body 1, make it possible to form two seals face, the material of valve seat 5 can be Cuprum alloy.
Described upper valve rod frame 3-2 is arranged on the top of lower valve rod frame 3-1, described lower valve rod frame 3-1 is arranged on the top of valve body 1, Flange joint is passed through in the connection of described upper valve rod frame 3-2 and lower valve rod frame 3-1, lower valve rod frame 3-1 and valve body 1, be provided with gasket seal between described flange, institute's gasket seal is wavy metal gasket seal;
Wherein, by by the connection of upper valve rod frame 3-2 and lower valve rod frame 3-1, lower valve rod frame 3-1 and valve body 1 by Flange joint can, between flange, be provided with wavy metal gasket seal, make the installation of upper valve rod frame 3-2 and lower valve rod frame 3-1 reliable, sealing is tight.
The described valve stem seal 6 be located between valve rod 4 and lower valve rod frame 3-1 is sylphon seal, and described bellows is metal bellows.
Wherein, be set to the wavy metal seal of tube by the valve stem seal 6 between valve rod 4 and lower valve rod frame 3-1, make sealing tight, compared to packing seal, the friction of filler to valve rod 4 can be reduced.
Described valve rod 4 is provided with guide sleeve, and the bottom of upper valve rod frame 3-2 is located at by described guide sleeve, and the material of described guide sleeve is metal material, is added with oiling agent in described guide sleeve.
Wherein, by being provided with guide sleeve on valve rod 4, in guide sleeve, be added with oiling agent, make the control of valve rod 4 lighter, resistance is less.
Described gland 9 is arranged on the top of upper valve rod frame 3-2, is provided with seal ring between described gland 9 and valve rod 5.
Wherein, by being provided with gland 9 at the top of upper valve rod frame 3-2, between gland 9 and valve rod 5, being provided with seal ring, making impurity etc. seldom enter in valve rod frame 3, make it possible to better protect valve rod and transmission system thereof.
Claims (6)
1. a double disk parallel gate valve, described double disk parallel gate valve comprises: valve body (1), flashboard (2), valve rod frame (3) and valve rod (4), valve seat (5) and flashboard (2) is provided with in described valve body (1), the bottom of described valve rod (4) is arranged on the top of flashboard (2), described valve rod frame (3) is arranged on the top of valve body (1), it is characterized in that, described flashboard (2) is flashboard parallel to each other, described flashboard (2) is double-flashboard structure, the flashboard of the feed-water end of described flashboard (2) is provided with pressure relief device, described valve rod frame (3) is divided into upper valve rod frame (3-2) and lower valve rod frame (3-1), valve stem seal (6) is provided with between described valve rod (4) and lower valve rod frame (3-1), the top of described upper valve rod frame (3-2) is provided with Stem Mut (8), described Stem Mut (8) is provided with gland (9), described valve rod (4) is provided with trapezoidal thread with the cooperation place of Stem Mut (8), the top of described valve rod (4) is provided with handwheel (7).
2. double disk parallel gate valve according to claim 1, is characterized in that, described in the quantity of valve seat (5) that is installed in valve body (1) be 2, the material of described valve seat (5) is metal material.
3. double disk parallel gate valve according to claim 1, it is characterized in that, described upper valve rod frame (3-2) is arranged on the top of lower valve rod frame (3-1), described lower valve rod frame (3-1) is arranged on the top of valve body (1), described upper valve rod frame (3-2) passes through Flange joint with lower valve rod frame (3-1), lower valve rod frame (3-1) with the connection of valve body (1), be provided with gasket seal between described flange, institute's gasket seal is wavy metal gasket seal.
4. double disk parallel gate valve according to claim 1, is characterized in that, described in the valve stem seal (6) be located between valve rod (4) and lower valve rod frame (3-1) be sylphon seal, described bellows is metal bellows.
5. double disk parallel gate valve according to claim 1, it is characterized in that, described valve rod (4) is provided with guide sleeve, and the bottom of upper valve rod frame (3-2) is located at by described guide sleeve, the material of described guide sleeve is metal material, is added with oiling agent in described guide sleeve.
6. double disk parallel gate valve according to claim 1, is characterized in that, described gland (9) is arranged on the top of upper valve rod frame (3-2), is provided with seal ring between described gland (9) and valve rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521014139.8U CN205207721U (en) | 2015-12-09 | 2015-12-09 | Parallel gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521014139.8U CN205207721U (en) | 2015-12-09 | 2015-12-09 | Parallel gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205207721U true CN205207721U (en) | 2016-05-04 |
Family
ID=55845439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521014139.8U Expired - Fee Related CN205207721U (en) | 2015-12-09 | 2015-12-09 | Parallel gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205207721U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106855130A (en) * | 2015-12-09 | 2017-06-16 | 王翔 | A kind of double disk parallel gate valve |
| CN107345578A (en) * | 2016-11-10 | 2017-11-14 | 俞钟晓 | A kind of gate valve that can be indicated open/close states and block leakage |
-
2015
- 2015-12-09 CN CN201521014139.8U patent/CN205207721U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106855130A (en) * | 2015-12-09 | 2017-06-16 | 王翔 | A kind of double disk parallel gate valve |
| CN107345578A (en) * | 2016-11-10 | 2017-11-14 | 俞钟晓 | A kind of gate valve that can be indicated open/close states and block leakage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160504 Termination date: 20161209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |