CN201925500U - Anti-backfire special gate valve - Google Patents
Anti-backfire special gate valve Download PDFInfo
- Publication number
- CN201925500U CN201925500U CN201020516264XU CN201020516264U CN201925500U CN 201925500 U CN201925500 U CN 201925500U CN 201020516264X U CN201020516264X U CN 201020516264XU CN 201020516264 U CN201020516264 U CN 201020516264U CN 201925500 U CN201925500 U CN 201925500U
- Authority
- CN
- China
- Prior art keywords
- valve
- flashboard
- special gate
- gate valve
- reticular
- 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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Abstract
The utility model relates to an anti-backfire special gate valve which is characterized in that a flashboard of the valve adopts a reticular structure, a wire mesh of a reticular flashboard (5) is fixedly connected with a skeleton (6) and is connected with a valve screw stem (4); the rotation of a hand wheel (1) drives the valve screw stem (4) to rotate to realize the vertical reciprocating motion of the reticular flashboard (5); the valve screw stem (4) and the reticular flashboard (5) which vertically make reciprocating motion are fixed on an inner wall of a valve body (7) by central holes of a groove and a support (3); and a seal ring (2) is installed on the support. On a connecting pipeline of an oil and gas transmission pipeline, a flange plate (9) on the pipeline is connected with the anti-backfire special gate valve body (7); when oil and gas are normally transmitted, the special gate valve and a common valve (8) are in the open state; when oil and gas are stopped transmitting, only the common valve (8) is closed; and when leakage and fire happen, the special gate valve is closed. The special gate valve is used for preventing the fire source from passing while allowing oil and gas to pass.
Description
Affiliated technical field
The utility model is specifically related to the technical field of valve switch commonly used on the pipeline of safety in transportation and storage petroleum gas and jar case.
Background technique
Known to the inventor, present valve both domestic and external has: (hard sealing) ball valve series, (bellows) gate valve series, butterfly valve series, (to folder) safety check series, (steel ball) stop valve series, (steel) stopcock series, modulating valve series, reduction valve series, (waterpower) control valve series, power station valve series, drain valve series, discharging valve series, the common feature of these valves is that passing through of liquids and gases opened and block in control, also do not have a kind of to allow liquids and gases to pass through and blocking-up, the valve that does not allow burning things which may cause a fire disaster to pass through comes out.
Summary of the invention
The utility model is to realize like this.The special gate valve of described a kind of backfireproof comprises: handwheel 1, seal ring 2, support 3, valve screw rod 4, netted flashboard 5, skeleton 6, valve body 7, common valve 8, flange plate 9.
Eigen is: valve flashboard adopts reticular structure, and the silk screen of netted flashboard 5 is connected with skeleton 6 and is connected with valve screw rod 4; Pumping of netted flashboard 5 is to adopt the rotation of the rotating band movable valve screw rod 4 of handwheel 1 to realize; Adopt the center hole of groove and support 3 to fix valve screw rod 4 and the netted flashboard 5 that pumps on the inwall of valve body 7; Seal ring 2 is installed on support 3.
Description of drawings
Accompanying drawing is the special gate valve schematic representation of backfireproof, and Fig. 1 is that plan view, Fig. 2 are left sectional view, handwheel 1, seal ring 2, support 3, valve screw rod 4, netted flashboard 5, skeleton 6, valve body 7, common valve 8, flange plate 9 among the figure.
Embodiment
Embodiment is described in further details the utility model below in conjunction with accompanying drawing, says that as accompanying drawing the feature of the special gate valve of a kind of backfireproof that shows is: valve flashboard adopts reticular structure, and the silk screen of netted flashboard 5 is connected with skeleton 6 and is connected with valve screw rod 4; The rotation of the rotating band movable valve screw rod 4 of the employing handwheel 1 that pumps of netted flashboard 5 realizes; Adopt the center hole of groove and support 3 to fix valve screw rod 4 and the netted flashboard 5 that pumps on the inwall of valve body 7; Seal ring 2 is installed on support 3.On the connecting line of transportation pipe line, connect the special gate valve body 7 of backfireproof by the flange plate on the pipeline 9; When normally carrying oil gas, special gate valve and common valve 8 all are in opening state, when stopping to carry oil gas, only close common valve 8 and get final product; When leakage and fire take place, close special gate valve, special gate valve function stops passing through of burning things which may cause a fire disaster when being to allow oil gas to pass through.
Claims (1)
1. special gate valve of backfireproof is characterized in that: valve flashboard adopts reticular structure, and the silk screen of netted flashboard (5) is connected with skeleton (6) and is connected with valve screw rod (4); Adopt the center hole of groove and support (3) to fix valve screw rod (4) and the netted flashboard (5) that pumps on the inwall of valve body (7); Go up installation seal ring (2) at support (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020516264XU CN201925500U (en) | 2010-08-22 | 2010-08-22 | Anti-backfire special gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020516264XU CN201925500U (en) | 2010-08-22 | 2010-08-22 | Anti-backfire special gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201925500U true CN201925500U (en) | 2011-08-10 |
Family
ID=44429348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020516264XU Expired - Fee Related CN201925500U (en) | 2010-08-22 | 2010-08-22 | Anti-backfire special gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201925500U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452580A (en) * | 2013-09-26 | 2013-12-18 | 山东博水泵业股份有限公司 | Double-barrel anti-backfire device |
-
2010
- 2010-08-22 CN CN201020516264XU patent/CN201925500U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452580A (en) * | 2013-09-26 | 2013-12-18 | 山东博水泵业股份有限公司 | Double-barrel anti-backfire device |
| CN103452580B (en) * | 2013-09-26 | 2015-10-28 | 山东博水泵业股份有限公司 | Double-barrel anti-backfire device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20130822 |