CN201475427U - Safety explosion-proof gate valve - Google Patents
Safety explosion-proof gate valve Download PDFInfo
- Publication number
- CN201475427U CN201475427U CN2009201437797U CN200920143779U CN201475427U CN 201475427 U CN201475427 U CN 201475427U CN 2009201437797 U CN2009201437797 U CN 2009201437797U CN 200920143779 U CN200920143779 U CN 200920143779U CN 201475427 U CN201475427 U CN 201475427U
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- valve body
- valve
- cylindrical shell
- cylinder
- cylindrical
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- Expired - Fee Related
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Abstract
The utility model discloses a safety explosion-proof gate valve for special conditions. The safety explosion-proof gate valve comprises a cylindrical valve body, a valve cover, a hand wheel with internal threads arranged at the upper end of the valve cover, wherein a gate segment transversely arranged on the cross section of the cylindrical valve body penetrates the side wall of the cylindrical valve body and, and a screw rod matched with the internal threads of the hand wheel is fixedly connected with the upper end of the gate and, an opening is formed on the side wall of a feed inlet of the cylindrical valve body; a cylinder is arranged on the inner wall of the opening; an air inlet is formed at the lower end of the cylinder and is communicated with the inner cavity of the cylindrical valve body; the cylinder has an open upper end; a step segment is arranged on the inner wall of the cylinder above the air inlet; the upper inner edge of the step segment supports a cone; a relief port is formed on the side wall of the cylinder above the step segment; the upper end of the cone is connected with a spring; the other end of the spring is connected with a press block in sliding fit with the inner wall of the cylinder; a press cover is connected with the outer side wall of the cylinder through threads; and the press block is pushed onto the lower end face of the press cover by the spring. When the pressure of liquid and air in the valve exceeds a set valve, the relief port is communicated with the inner cavity of the valve, thereby effectively preventing pipe explosion caused by high pressure.
Description
Technical field
The utility model specifically is a kind of special operation condition safety anti-explosive gate valve.
Background technique
Along with fast development of national economy, the people's culture and living standard have all obtained huge raising, and people also more and more pay attention to safety consciousness simultaneously.Medium transport pipeline in the industries such as the liquefaction separation of petroleum products, petroleum gas, rock gas and liquid oxygen and chemical industry generating, coal gas conveying, accumulate in the gasification of the endoceliac liquid of valve and when producing high pressure when running into, perhaps line clogging and raise suddenly owing to misoperation causes liquid, gas pressure in the conveyance conduit that valve closing causes has brought huge hidden danger for conveyance conduit safety.
Summary of the invention
The purpose of this utility model provides a kind of special operation condition safety anti-explosive gate valve, when the liquid in the valve, when gas has surpassed maximum set pressure, pressure relief opening and body cavity conducting have effectively prevented owing to the raise accident of the pipe explosion cause of pressure takes place.
The technical solution of the utility model is as follows:
A kind of special operation condition safety anti-explosive gate valve, comprise the tubular valve body, valve gap, the upper end of valve gap is provided with the handwheel that has internal thread, the tubular two ends of valve body is respectively material feeding mouth, discharge port, pass the flashboard that is horizontally placed on the tubular valve body cross section on the sidewall of tubular valve body, the upper end of flashboard is fixedly connected with the threaded stem with the handwheel screw-internal thread fit, on the sidewall of described tubular valve body material feeding mouth one side perforate is arranged, be combined with cylindrical shell on the inwall of perforate, the cylindrical shell lower end has suction port and communicates with the cylindrical valve intracoelomic cavity, the cylindrical shell upper end is opened wide, the cylinder inboard wall of the suction port top of cylindrical shell has the step section, the last inside edge jacking of step section has cone, have pressure relief opening on the sidewall of the overhead cylinder of step section, the upper end of cone is connected with spring, the other end of spring is connected with the compact heap that is slidingly matched with cylinder inboard wall, the outer side wall friction top that has been threaded on the cylindrical shell, and spring holds out against compact heap on the lower end surface of friction top.
The described friction top below that is threaded with the cylindrical shell outer side wall has leaned locking nut.
There is the section of stretching out described cylindrical shell lower end, perforate screw-thread fit on outside thread and the cylindrical valve body sidewall is arranged on the sidewall of the section of stretching out, have vertical suction port in the section of stretching out and communicate, be separated with sealing gasket between the lower end surface of cylindrical shell and the tubular outer side of valve body with the cylindrical valve intracoelomic cavity.
Liquid in the utility model valve body, when gas has surpassed maximum set pressure, pressure relief opening and body cavity conducting are discharged pressure relief opening with the liquid in the body cavity, gas, have effectively prevented because the accident generation of the pipe explosion that the pressure rising causes.
Pressure maximum size during the utility model pressure release can be set by screwing friction top.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a side view of the present utility model.
Fig. 3 is the utility model inner barrel part mounting structure schematic representation.
Embodiment
Referring to Fig. 1, Fig. 2, a kind of special operation condition safety anti-explosive gate valve, comprise tubular valve body 1, valve gap 2, the upper end of valve gap is provided with the handwheel 3 that has internal thread, the tubular two ends of valve body is respectively material feeding mouth, discharge port, pass the flashboard 4 that is horizontally placed on the tubular valve body cross section on the sidewall of tubular valve body, the upper end of flashboard is fixedly connected with the threaded stem 5 with the handwheel screw-internal thread fit, on the sidewall of tubular valve body 1 material feeding mouth one side perforate is arranged, be provided with cylindrical shell 6 in the perforate, there is the section of stretching out the cylindrical shell lower end, perforate screw-thread fit on outside thread and the cylindrical valve body sidewall is arranged on the section of stretching out, having vertical suction port 7 in the section of stretching out communicates with the cylindrical valve intracoelomic cavity, be separated with sealing gasket between the lower end surface of cylindrical shell and the tubular outer side of valve body, the cylindrical shell upper end is opened wide, the cylinder inboard wall of the suction port top of cylindrical shell has the step section, the last inside edge jacking of step section has cone 8, have pressure relief opening 9 on the sidewall of the overhead cylinder of step section, the upper end of cone is connected with spring 10, the other end of spring is connected with the compact heap that is slidingly matched with cylinder inboard wall, the outer side wall friction top 11 that has been threaded on the cylindrical shell, spring 10 holds out against compact heap on the lower end surface of friction top 11, and the friction top below that is threaded with the cylindrical shell outer side wall has leaned locking nut 12.
Claims (3)
1. special operation condition safety anti-explosive gate valve, comprise the tubular valve body, valve gap, the upper end of valve gap is provided with the handwheel that has internal thread, the tubular two ends of valve body is respectively material feeding mouth, discharge port, pass the flashboard that is horizontally placed on the tubular valve body cross section on the sidewall of tubular valve body, the upper end of flashboard is fixedly connected with the threaded stem with the handwheel screw-internal thread fit, it is characterized in that: on the sidewall of described tubular valve body material feeding mouth one side perforate is arranged, be combined with cylindrical shell on the inwall of perforate, the cylindrical shell lower end has suction port and communicates with the cylindrical valve intracoelomic cavity, the cylindrical shell upper end is opened wide, the cylinder inboard wall of the suction port top of cylindrical shell has the step section, the last inside edge jacking of step section has cone, have pressure relief opening on the sidewall of the overhead cylinder of step section, the upper end of cone is connected with spring, the other end of spring is connected with the compact heap that is slidingly matched with cylinder inboard wall, the outer side wall friction top that has been threaded on the cylindrical shell, and spring holds out against compact heap on the lower end surface of friction top.
2. a kind of special operation condition safety anti-explosive gate valve according to claim 1 is characterized in that: the described friction top below that is threaded with the cylindrical shell outer side wall has leaned locking nut.
3. a kind of special operation condition safety anti-explosive gate valve according to claim 1, it is characterized in that: there is the section of stretching out described cylindrical shell lower end, perforate screw-thread fit on outside thread and the cylindrical valve body sidewall is arranged on the sidewall of the section of stretching out, have vertical suction port in the section of stretching out and communicate, be separated with sealing gasket between the lower end surface of cylindrical shell and the tubular outer side of valve body with the cylindrical valve intracoelomic cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201437797U CN201475427U (en) | 2009-04-09 | 2009-04-09 | Safety explosion-proof gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201437797U CN201475427U (en) | 2009-04-09 | 2009-04-09 | Safety explosion-proof gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201475427U true CN201475427U (en) | 2010-05-19 |
Family
ID=42411676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201437797U Expired - Fee Related CN201475427U (en) | 2009-04-09 | 2009-04-09 | Safety explosion-proof gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201475427U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985990A (en) * | 2010-08-26 | 2011-03-16 | 京东大型阀门有限公司 | Metal bidirectional sealing valve cavity safety relief device |
| CN103883750A (en) * | 2013-12-20 | 2014-06-25 | 彭仁田 | Special wellhead anti-explosion gate valve |
| CN105422958A (en) * | 2014-09-22 | 2016-03-23 | 天津市塘沽津滨阀门有限公司 | Full-automatic gate plate type risk avoiding device |
| CN109058491A (en) * | 2018-09-18 | 2018-12-21 | 杨胜 | A kind of power station sluice valve |
| CN109307083A (en) * | 2018-09-26 | 2019-02-05 | 河北博路天宝石油设备制造有限公司 | A kind of oil equipment multi-functional valve |
-
2009
- 2009-04-09 CN CN2009201437797U patent/CN201475427U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985990A (en) * | 2010-08-26 | 2011-03-16 | 京东大型阀门有限公司 | Metal bidirectional sealing valve cavity safety relief device |
| CN101985990B (en) * | 2010-08-26 | 2014-04-16 | 京东大型阀门有限公司 | Metal bidirectional sealing valve cavity safety relief device |
| CN103883750A (en) * | 2013-12-20 | 2014-06-25 | 彭仁田 | Special wellhead anti-explosion gate valve |
| CN105422958A (en) * | 2014-09-22 | 2016-03-23 | 天津市塘沽津滨阀门有限公司 | Full-automatic gate plate type risk avoiding device |
| CN105422958B (en) * | 2014-09-22 | 2018-02-13 | 天津市塘沽津滨阀门有限公司 | A kind of full-automatic flashboard type avoiding device |
| CN109058491A (en) * | 2018-09-18 | 2018-12-21 | 杨胜 | A kind of power station sluice valve |
| CN109058491B (en) * | 2018-09-18 | 2019-11-08 | 温州三菱阀门锻造有限公司 | A kind of power station sluice valve |
| CN109307083A (en) * | 2018-09-26 | 2019-02-05 | 河北博路天宝石油设备制造有限公司 | A kind of oil equipment multi-functional valve |
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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: 20100519 Termination date: 20150409 |
|
| EXPY | Termination of patent right or utility model |