CN201992103U - Novel automatic pressure relief wedge gate valve - Google Patents
Novel automatic pressure relief wedge gate valve Download PDFInfo
- Publication number
- CN201992103U CN201992103U CN2011201077731U CN201120107773U CN201992103U CN 201992103 U CN201992103 U CN 201992103U CN 2011201077731 U CN2011201077731 U CN 2011201077731U CN 201120107773 U CN201120107773 U CN 201120107773U CN 201992103 U CN201992103 U CN 201992103U
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- valve
- flashboard
- pressure relief
- valve body
- novel
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Abstract
The utility model provides a novel automatic pressure relief wedge gate valve, which comprises a valve body, a valve cover, a wedge disc, a valve rod and a hand wheel. The valve body and the wedge disc are respectively in limit sliding fit through a guide rail and a guide slot. The head part of the valve rod and the wedge disc are respectively provided with sealing pairs which are matched with each other so as to form a pressure relief structure. Due to the adoption of the technical scheme, a differential pressure at the inlet and outlet end of the valve can be reduced, and the opening moment of the valve is reduced, so that the valve is easier to open and close, the wear of a sealing surface between the valve body and the wedge disc is also reduced, and the sealing and using performances of the valve are improved.
Description
Technical field
The utility model relates to a kind of valve, relates in particular to a kind of from the pressure release Wedge gate valve.
Background technique
Gate valve is kind of an application valve products very widely, is mainly used in the transmission of control flows body medium in fields such as oil, chemical industry, power station and long-distance transport pipes.The existing following defective of gate valve ubiquity: valve is in opening process, because the pressure reduction of flashboard inlet/outlet end is bigger, it is bigger to make valve open moment in opening process, sealing surface between valve body and flashboard causes erosion and scratch easily, thereby reduced the sealability of sealing surface, make gate valve leakage phenomenon occur, and maintenance difficult, maintenance expenses are also than higher.
Summary of the invention
In order to overcome above-mentioned defective, the purpose of this utility model provides that a kind of existing unlatching moment is little, the wearing and tearing between the sealing surface are few, has the Wedge gate valve from the pressure release function again.
For achieving the above object, the technical solution of the utility model is:
A kind of novel from the pressure release Wedge gate valve, it comprises valve body, valve gap, flashboard and valve rod, described valve body and flashboard form locating slip by guide rail and guiding groove and cooperate, design the sealing pair that cooperatively interacts on described valve rod head and the flashboard respectively, constitute pressure relief, the pod apertures of pressure relief is communicated with the valve inlet end, the relief hole of pressure relief and valve export end channel connection.
Described flashboard is arranged in the valve body, and valve rod is connected by the capable groove structure of T with flashboard.
Described valve body is provided with guide rail, and guiding groove is located at respectively on the dual-side on the flashboard, and valve body forms locating slip with flashboard and cooperates.
Design the sealing pair that cooperatively interacts on described valve rod head and the flashboard respectively, constitute pressure relief.
The usefulness of technique scheme is:
Adopt technique scheme, the cooperation between flashboard and valve body has reduced gate valve needed power in opening-closing process nimbly and freely, makes the operation of valve light more, quick; Between valve rod head and flashboard, form pressure relief, when valve opening, carry on the valve rod, open pressure relief, medium with pressure passes through outlet end by the relief hole that the pod apertures on the entrance point flashboard flows to decompression mechanism, has reduced the pressure reduction of flashboard inlet/outlet two end supports, and the unlatching moment of flashboard is greatly reduced, reduce erosion, scratch and the wearing and tearing of sealing surface, improved the sealability of valve.
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Description of drawings
Fig. 1 is this novel schematic representation;
Fig. 2 is this novel pressure relief schematic representation;
Fig. 3 is this novel pressure relief action schematic representation;
Fig. 4 is this novel unlatching schematic representation;
Fig. 5 is the partial schematic diagram of this novel pressure relief.
Embodiment
Embodiment
As shown in Figure 1, a kind of novel from the pressure release Wedge gate valve, it comprises valve body 1, valve gap 2, flashboard 3 and valve rod 4, manufacture and design the sealing pair that cooperatively interacts respectively on described valve rod 4 heads and the flashboard 3, constitute pressure relief, the pod apertures 7 of pressure relief is communicated with the valve inlet end, the relief hole 8 and the valve export end channel connection of pressure relief.In the valve opening process, drive Stem Mut 6 by rotating handwheel 5, valve rod 4 is risen, when flashboard 3 is not used by valve rod 4 also to carry, medium with pressure enters the valve lumen by the pod apertures on the entrance point flashboard 3, and then flows to the relief hole of decompression mechanism and outlet end by valve reduces the pressure reduction between the flashboard inlet/outlet both sides, thereby reduce the unlatching moment of valve, flashboard can be carried on easily then.Flashboard is connected on the valve rod with crossing T-slot, in uphill process, the guiding groove on the flashboard dual-side by with valve body on guide rail accurately cooperate, move on spacing, thereby finish the whole opening process of valve.In this novel whole operation flow process, avoid the sealing surface of the discharge gate of general type to be subjected to the pressure medium erosion and reduced the wearing and tearing of sealing surface, improved the usability and the sealability of valve.
The foregoing description only is an embodiment of the present utility model, but design concept of the present utility model is not limited only to this, everyly utilizes this design that the utility model is carried out the change of unsubstantiality, all belongs to the behavior of invading the utility model protection domain.
Claims (4)
- One kind novel from the pressure release Wedge gate valve, it is characterized in that: it comprises valve body, valve gap, flashboard and valve rod, described valve body and flashboard form locating slip by guide rail and guiding groove and cooperate, design the sealing pair that cooperatively interacts on described valve rod head and the flashboard respectively, constitute pressure relief, the pod apertures of pressure relief is communicated with the valve inlet end, the relief hole of pressure relief and valve export end channel connection.
- 2. as claimed in claim 1 a kind of novel from the pressure release Wedge gate valve, it is characterized in that: described flashboard is arranged in the valve body, and valve rod is connected by the capable groove structure of T with flashboard.
- 3. as claimed in claim 1 a kind of novel from the pressure release Wedge gate valve, it is characterized in that: described valve body is provided with guide rail, and guiding groove is located at respectively on the dual-side on the flashboard, and valve body forms locating slip with flashboard and cooperates.
- 4. as claimed in claim 1 a kind of novel from the pressure release Wedge gate valve, it is characterized in that: design the sealing pair that cooperatively interacts on described valve rod head and the flashboard respectively, constitute pressure relief.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201077731U CN201992103U (en) | 2011-04-13 | 2011-04-13 | Novel automatic pressure relief wedge gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201077731U CN201992103U (en) | 2011-04-13 | 2011-04-13 | Novel automatic pressure relief wedge gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201992103U true CN201992103U (en) | 2011-09-28 |
Family
ID=44668593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201077731U Expired - Lifetime CN201992103U (en) | 2011-04-13 | 2011-04-13 | Novel automatic pressure relief wedge gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201992103U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889391A (en) * | 2012-10-16 | 2013-01-23 | 南通国电电站阀门有限公司 | Motor-driven high-pressure welding end pressure relief type double disc gate valve |
| CN104315176A (en) * | 2014-10-21 | 2015-01-28 | 成都市翻鑫家科技有限公司 | Self-balance thermal-insulation gate valve |
-
2011
- 2011-04-13 CN CN2011201077731U patent/CN201992103U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889391A (en) * | 2012-10-16 | 2013-01-23 | 南通国电电站阀门有限公司 | Motor-driven high-pressure welding end pressure relief type double disc gate valve |
| CN102889391B (en) * | 2012-10-16 | 2014-02-19 | 南通国电电站阀门有限公司 | Motor-driven high-pressure welding end pressure relief type double disc gate valve |
| CN104315176A (en) * | 2014-10-21 | 2015-01-28 | 成都市翻鑫家科技有限公司 | Self-balance thermal-insulation gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: FUJIAN FEIDA VALVE TECHNOLOGY CO., LTD. Free format text: FORMER NAME: FUJIAN FEIDA VALVE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 363900 Fujian city of Zhangzhou province Changtai Xingtai Industrial Zone Patentee after: Fujian Feida Valve Technology Co., Ltd. Address before: 363900 Fujian city of Zhangzhou province Changtai Xingtai Industrial Zone Patentee before: Fujian Feida Valve Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110928 |
|
| CX01 | Expiry of patent term |