CN201184425Y - High pressure large caliber flat plate gate valve - Google Patents
High pressure large caliber flat plate gate valve Download PDFInfo
- Publication number
- CN201184425Y CN201184425Y CNU2008201020464U CN200820102046U CN201184425Y CN 201184425 Y CN201184425 Y CN 201184425Y CN U2008201020464 U CNU2008201020464 U CN U2008201020464U CN 200820102046 U CN200820102046 U CN 200820102046U CN 201184425 Y CN201184425 Y CN 201184425Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- flashboard
- groove
- seat sheet
- 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 - Lifetime
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- Safety Valves (AREA)
- Sliding Valves (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model discloses a high-pressure and large-aperture flat gate valve for pipes, which comprises a valve seat (3) consisting of a front valve seat sheet and a rear valve seat sheet on the front and the rear sides of a flashboard (4), wherein an integral annular groove (32) is formed on the contact surface of the front valve seat sheet (31) and the flashboard (4), and a seal ring (9) is arranged in the groove; an integral annular groove (32) is formed on the contact surface of the rear valve seat sheet (33) and the flashboard (4), and a seal ring (9) is arranged in the groove; a plurality of spring holes (34) are uniformly distributed on the other side of the rear valve seat sheet (33), i.e. the contact surface of the rear valve seat sheet (33) and the valve body; and springs (10) are arranged in the spring holes. The gate valve has high resistance to high pressure (up to 10.0 Mpa), and has reliable bidirectional sealing and good fire prevention and electrostatic prevention function.
Description
Affiliated technical field
The utility model relates to a kind of gate valve.
Background technique
The types of transportation of oil, rock gas develops to the line transportation direction, and line transportation can be alleviated the pressure of railway transport, and safer, economical.At present, oil, gas production scale be just towards large scale development, the U.S., Muscovite diameter of conveying pipe up 1420mm, and the highest discharge pressure is 10.0Mpa; The caliber 1016mm of China's transfering natural gas from the west to the east, the highest discharge pressure is 10.0Mpa, and existing plate valve can not be realized the body cavity releasing pressure automatically owing to adopt unidirectional valve seat; No fire-proof function can not satisfy existing big caliber and the high pressure of carrying..
Summary of the invention
The purpose of this utility model is to provide a kind of high-pressure large-caliber plate valve that adapts to existing transfer oil, rock gas heavy-caliber pipeline.
For achieving the above object, the utility model mainly comprises valve body, valve gap, valve seat, flashboard, valve rod, indicating arm, support, drive unit, its technological scheme is: valve seat is made up of the preceding valve seat plate, the rear valve base sheet that are positioned at the flashboard front and back, on the surface of contact of preceding valve seat plate and flashboard, be provided with a domain groove, be added with seal ring in this groove simultaneously; Be provided with a domain groove on the surface of contact of rear valve base sheet and flashboard, be added with seal ring in this groove, the another side of rear valve base sheet promptly has a plurality of equally distributed spring eyes on the surface of contact of valve seat plate and valve body, be provided with spring in this spring eye simultaneously.
The beneficial effects of the utility model are:
One, the high pressure resistant 10.0Mpa that reaches of this gate valve and since valve seat be provided with spring behind, when the brake valve body cavity pressure surpassed specified 1.33 times, body cavity pressure was greater than initial tension of spring, valve seat discharges endoceliac pressure automatically, guarantees the safe in utilization of valve;
Two, this gate valve two way sealed, and sealing is reliable; Owing to be provided with grease pouring valve at the sealing position of this gate valve, in case valve seal lost efficacy, the seal gease of can annotating plays the function of positive confinement.This gate valve is soft, hard sealing structure, is soft seal during low pressure, is metallic seal during high pressure.When breaking out of fire, after the soft seal circle is burnt, still can realize sealing function, thereby have fire-proof function by valve seat;
Three, owing to be provided with spring, guarantee that this gate valve has electrostatic-proof function in the contacting point of valve rod and flashboard;
Description of drawings
Below in conjunction with drawings and embodiments the utility model is further elaborated.
Fig. 1 is the utility model high-pressure large-caliber construction of parallel gate valve schematic representation and partial enlarged drawing;
Fig. 2 is this plate valve front view of valve seat plate before;
Fig. 3 is the sectional view along A-A line among Fig. 2
Fig. 4 is this plate valve front view of valve seat plate afterwards;
Fig. 5 is the sectional view along B-B line among Fig. 4
Figure labeling description: valve seat plate, 32-groove, 33-rear valve base sheet, 34-spring eye before 1-valve body, 2-valve gap, 3-valve seat, 4-flashboard, 5-valve rod, 6-indicating arm, 7-support, 8-drive unit, 9-seal ring, 10-spring, the 31-.
Embodiment
As shown in Figure 1, the utility model high-pressure large-caliber plate valve mainly comprises valve body (1), valve gap (2), valve seat (3), flashboard (4), valve rod (5), indicating arm (6), support (7), drive unit (8), its technological scheme is: valve seat (3) is made up of the preceding valve seat plate, the rear valve base sheet that are positioned at flashboard (4) front and back, on the surface of contact of preceding valve seat plate (31) and flashboard (4), be provided with a domain groove (32), be added with seal ring (9) simultaneously in this groove, referring to Fig. 2, Fig. 3; On the surface of contact of rear valve base sheet (33) and flashboard (4), be provided with a domain groove (32), be added with seal ring (9) in this groove, the another side of rear valve base sheet (33), be rear valve base sheet (33) with the surface of contact of valve body (1) on a plurality of equally distributed spring eyes (34) are arranged, be provided with spring (10) simultaneously in this spring eye, referring to Fig. 4, Fig. 5.
During work, when pressure during in normal 0～1.33 times of rated working pressure scope, valve seat work during by initial the installation; When pressure surpassed 1.33 times of rated working pressures, endoceliac pressure was greater than valve seat initial tension of spring behind, and pressure discharges behind to valve seat, guarantees the safe in utilization of valve.Soft, the hard sealing structure of this gate valve are soft seal during low pressure, are metallic seal during high pressure, when breaking out of fire, after soft seal circle (9) is burnt, still can realize sealing function by valve seat (3), have fire-proof function.Be provided with spring (10) in the contacting point of valve seat and valve body, guarantee that this gate valve has electrostatic-proof function.
Claims (1)
1, a kind of high-pressure large-caliber plate valve, it mainly comprises valve body (1), valve gap (2), valve seat (3), flashboard (4), valve rod (5), indicating arm (6), support (7), drive unit (8), it is characterized in that: valve seat (3) is made up of the preceding valve seat plate, the rear valve base sheet that are positioned at flashboard (4) front and back, on the surface of contact of preceding valve seat plate (31) and flashboard (4), be provided with a domain groove (32), be added with seal ring (9) in this groove; On the surface of contact of rear valve base sheet (33) and flashboard (4), be provided with a domain groove (32), be added with seal ring (9) simultaneously in this groove, the another side of rear valve base sheet (33), be valve seat plate (33) with the surface of contact of valve body (1) on a plurality of equally distributed spring eyes (34) are arranged, be provided with spring (10) simultaneously in this spring eye.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201020464U CN201184425Y (en) | 2008-04-18 | 2008-04-18 | High pressure large caliber flat plate gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201020464U CN201184425Y (en) | 2008-04-18 | 2008-04-18 | High pressure large caliber flat plate gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201184425Y true CN201184425Y (en) | 2009-01-21 |
Family
ID=40272164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201020464U Expired - Lifetime CN201184425Y (en) | 2008-04-18 | 2008-04-18 | High pressure large caliber flat plate gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201184425Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103582772A (en) * | 2011-04-12 | 2014-02-12 | 加斯凯特国际股份公司 | Sealing system for industrial gate valves and gate valve comprising such a system |
| CN104315173A (en) * | 2014-08-18 | 2015-01-28 | 洪元生 | Double-segment seal gate valve |
| CN115807855A (en) * | 2022-12-03 | 2023-03-17 | 开平市深林雨卫浴有限公司 | Anti-drip tap |
-
2008
- 2008-04-18 CN CNU2008201020464U patent/CN201184425Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103582772A (en) * | 2011-04-12 | 2014-02-12 | 加斯凯特国际股份公司 | Sealing system for industrial gate valves and gate valve comprising such a system |
| CN103582772B (en) * | 2011-04-12 | 2016-05-04 | 加斯凯特国际股份公司 | For the sealing system and the gate valve that comprises this system of industrial sluice valves |
| CN104315173A (en) * | 2014-08-18 | 2015-01-28 | 洪元生 | Double-segment seal gate valve |
| CN115807855A (en) * | 2022-12-03 | 2023-03-17 | 开平市深林雨卫浴有限公司 | Anti-drip tap |
| CN115807855B (en) * | 2022-12-03 | 2023-08-18 | 开平市深林雨卫浴有限公司 | Drip-proof tap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090121 |