CN2856643Y - Safety cut-off valve - Google Patents
Safety cut-off valve Download PDFInfo
- Publication number
- CN2856643Y CN2856643Y CN 200520077294 CN200520077294U CN2856643Y CN 2856643 Y CN2856643 Y CN 2856643Y CN 200520077294 CN200520077294 CN 200520077294 CN 200520077294 U CN200520077294 U CN 200520077294U CN 2856643 Y CN2856643 Y CN 2856643Y
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- CN
- China
- Prior art keywords
- valve
- outlet
- safety cut
- flap
- inlet
- 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
A safety cut-off valve which can be automatically closed in the case of pressure regulating failure or downstream pipeline leakage, relating to fluid transfering pipeline facilities technique field. The safety cut-off valve comprises a valve body with inlet and outlet. A valve flap is provided between the inlet and the outlet. A valve stem for pressure controlling open-close acttion is arranged at the central area of the valve flap. The improvement is provided of: the valve bore communicates with the outlet via a filter disposed in the valve body. By adopting the structure of this utility model, the safety cut-off valve has a function of cut-off controlling, and further a filtering function with a compact structure and convenient installing.
Description
Technical field
The utility model relates to a kind of cut-off valve, and especially a kind of cut-off valve of cutting out automatically when malfunctioning or downstream line is leaked when regulator belongs to fluid delivery pipeline facility technology field.
Background technique
Malfunctioning when the regulator of gas transmission and distribution pipeline, perhaps downstream line occurs leaking when waiting, and in order to guarantee safety, need blind off a line by valve control.According to the knowledge of the applicant, on the present gas transmission and distribution pipeline safety cut-off valve is not set substantially,, does not really contain filtrating equipment even be provided with this equipment in the minority pipeline.As a result, safety cut-off valve and filtrating equipment are separated from one another, take bigger installing space, and have increased the leakage point that pipeline connects.In addition, can't realize remote monitoring.
The model utility content
Primary and foremost purpose of the present utility model is: at the deficiency that above prior art exists, propose a kind of safety cut-off valve that valve and filtrating equipment are organically combined.
The further purpose of the utility model is: propose a kind of safety cut-off valve that can realize remote monitoring.
In order to reach above primary and foremost purpose, safety cut-off valve of the present utility model comprises the valve body that is provided with inlet/outlet, be separated with flap between the described inlet/outlet, the center of described flap is connected with the valve rod of pressure control switching motion, its improvements are that described valve opening is communicated with outlet by placing the filter in the valve body.
After adopting said structure of the present utility model, safety cut-off valve not only has the control of cut-out function, and can finish filtration work, and compact structure is easy for installation, has reduced the leakage point that pipeline connects.
In order to reach further purpose, near the keying control action spare of described valve induction piece is housed, described induction piece is connected with remote control by signaling line.Like this, as long as the cut-off valve action, remote monitoring center can receive coherent signal, thereby learns the state of valve, obtains gas transmission and distribution pipeline information, thereby takes measures necessary.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is an embodiment's of the utility model a structural representation.
Fig. 2 is the side view of Fig. 1.
Main parts size is as follows among the figure: 1, gland 2, guide sleeve 3, spring 4, pilot valve 5, sealing seat 6, valve gap 7, valve rod 8, flap 9, seal holder ring 10, valve body 11, differential pressure indicator 12, ball valve 13, bottom 14, pipe plug 15, filter
Embodiment
Embodiment one
The safety cut-off valve of present embodiment as shown in Figure 1, the two ends of valve body 10 are respectively equipped with inlet/outlet, be separated with flap 8 between the inlet/outlet, the center of flap 8 is equipped with control and is opened and closed valve rod 7, the upper end of this valve rod is connected with cam drive mechanism in being installed in valve body 10 top pilot valves, and the camshaft of this cam drive mechanism is connected with the pressure film valve of pilot valve one end.The film flap of this pressure film valve and the downstream pipeline connection that is connected valve body 10 inlet/outlet.Therefore, regulator in pipeline is malfunctioning, makes downstream line pressure be higher than setting pressure, when perhaps downstream line is owing to improper decompressions of reason such as leakages, the pressure difference at two ends is ordered about the action of film flap, thereby passes through the flap 8 of cam mechanism driving valve rod 7 closed safe cut-off valves.
Center valve opening on the seal holder ring 9 is communicated with filter 5 in placing valve body 10 lower ends and bottom 13, and sees through filter 5 and be communicated with exporting.The filtering surface both sides of filter 5 are communicated with the two ends of differential pressure indicator 11.Therefore, filter can filtration when normal ventilation, and differential pressure indicator 11 can show by pressure reduction, reminds operator to clean or changes filtrating equipment.
In addition, the safety cut-off valve of present embodiment is equipped with induction piece S as shown in Figure 2 near pilot valve 4 opens and closes control action spare, and its signal output part is connected with remote control by signaling line.Therefore,, send on predefined landline telephone or the mobile phone, in time notify the maintenance man to go field maintenance and repairing in case the cut-off valve action can spread out of shutdown signal automatically.
In a word, the safety cut-off valve compact structure of present embodiment, it is more convenient to install, and can realize auto-safety shut-off, and in time will move automatic information and pass.
Claims (4)
1. safety cut-off valve, comprise the valve body that is provided with inlet/outlet, be separated with flap between the described inlet/outlet, the valve rod of pressure control switching motion is equipped with in the center of described flap, it is characterized in that: described valve opening is communicated with outlet by placing the filter in the valve body.
2. according to the described safety cut-off valve of claim 1, it is characterized in that: near the keying control action spare of described valve induction piece is housed, described induction piece is connected with remote control by signaling line.
3. according to claim 1 or 2 described safety cut-off valves, it is characterized in that: the upper end of described valve rod is connected with cam drive mechanism in being installed in valve body top pilot valve, the camshaft of described cam drive mechanism is connected with the pressure film valve of pilot valve one end, the film flap of described pressure film valve and the downstream pipeline connection that is connected the valve body inlet/outlet.
4. according to the described safety cut-off valve of claim 3, it is characterized in that: the filtering surface both sides of described filter are communicated with the two ends of differential pressure indicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520077294 CN2856643Y (en) | 2005-11-09 | 2005-11-09 | Safety cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520077294 CN2856643Y (en) | 2005-11-09 | 2005-11-09 | Safety cut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2856643Y true CN2856643Y (en) | 2007-01-10 |
Family
ID=37599950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520077294 Expired - Fee Related CN2856643Y (en) | 2005-11-09 | 2005-11-09 | Safety cut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2856643Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465429A (en) * | 2015-02-17 | 2016-04-06 | 江苏瑞朗博机械设备有限公司 | Decompression valve triggered through pin bending |
| CN109442224A (en) * | 2018-12-08 | 2019-03-08 | 台州鑫护家流体智控有限公司 | A kind of gas monitor and control method, system and device |
-
2005
- 2005-11-09 CN CN 200520077294 patent/CN2856643Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465429A (en) * | 2015-02-17 | 2016-04-06 | 江苏瑞朗博机械设备有限公司 | Decompression valve triggered through pin bending |
| CN109442224A (en) * | 2018-12-08 | 2019-03-08 | 台州鑫护家流体智控有限公司 | A kind of gas monitor and control method, system and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |