CN101749441B - Vacuum interruption flexible sealing connection rod butterfly valve - Google Patents
Vacuum interruption flexible sealing connection rod butterfly valve Download PDFInfo
- Publication number
- CN101749441B CN101749441B CN2010100289403A CN201010028940A CN101749441B CN 101749441 B CN101749441 B CN 101749441B CN 2010100289403 A CN2010100289403 A CN 2010100289403A CN 201010028940 A CN201010028940 A CN 201010028940A CN 101749441 B CN101749441 B CN 101749441B
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- valve
- connection rod
- bivalve
- valve body
- double
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Abstract
The invention relates to a vacuum interruption flexible sealing connection rod butterfly valve, which includes a valve body, a drive shaft, a drive cylinder and a drive bracket; the drive cylinder is connected with a valve body through the drive bracket; the vacuum interruption flexible sealing connection rod butterfly valve is characterized in that a safety channel is additionally arranged on the valve body; the safety channel includes a double valve plate, and a double valve seat; a closed space is formed between the double valve plate and the double valve seat; the double valve seat is fixedly arranged on the valve body; the double valve plate forms seal with the double valve seat through a double sealing gasket; the safety the safety channel is provided with a pipeline communicated with the safety channel; the pipeline is provided with a check valve and a ventilation fan from up to down in sequence; the shaft and the drive shaft of the check valve are matched and connected through a connection rod mechanism. The vacuum interruption flexible sealing connection rod butterfly valve adapts a plurality of complex working conditions, in particular to the situation of not affecting the situation of using function on safety protection, can replace glass valves, has the advantages of small size, high safety grade and sealing performance as well as simple and reliable operation, and further improve and develop the function of the connection rod butterfly valve.
Description
Technical field
The present invention relates to a kind of industries such as Ferrous Metallurgy that are applied in pipeline control, mainly play the vacuum interruption flexible sealing connection rod butterfly valve of the cut-out and the unlatching effect in control valve road.
Background technique
The seal form of present employed its sealing surface of Connecting rod butterfly valve mainly contains three kinds of forms: cemented carbide sealing pair, cemented carbide add the soft seal pair, cemented carbide adds the hard alloy and adds the soft seal pair, but the Connecting rod butterfly valve sealability of above-mentioned several seal form is general, can not satisfy the sealing under some special operation condition.
Summary of the invention
Problem to be solved by this invention is to provide a kind of vacuum interruption flexible sealing connection rod butterfly valve at above-mentioned prior art, and it is simple in structure, and sealability is better.
The present invention is adopted solution to be by the problem of the above-mentioned proposition of solution: vacuum interruption flexible sealing connection rod butterfly valve, include valve body, live axle, driving oil cylinder and driving arm, driving oil cylinder links to each other with valve body by driving arm, it is characterized in that having additional on the valve body escape way, described escape way includes the bivalve plate, the bivalve seat, at the bivalve plate, form an enclosed space between the bivalve seat, described bivalve seat is fixed on the valve body, the bivalve plate forms sealing by double density seal and bivalve seat, escape way is provided with the pipeline that is connected with escape way, be disposed with stop valve and ventilation blower fan on the pipeline from top to bottom, the valve shaft of stop valve matches by linkage mechanism with live axle and is connected.
Press such scheme, described ventilation blower fan drives with nitrogen and makes escape way become vacuum area.
The present invention changes the seal form of sealing surface, increases an escape way, changes original single valve plate, valve seat into bivalve plate, the sealing of bivalve seat, the two-layer sealing of one deck sealing becoming.Form a closed area like this between bivalve plate and bivalve seat, we are called blue region.For ease of describing, provide the zone of medium source to be called red area bivalve plate one side; Bivalve plate opposite side is called green area.At the closed area introduction pipe, the top installs ventilation blower fan, stop valve successively additional, the valve shaft of stop valve and live axle interlock, and stop valve was closed when valve was opened, and stop valve was opened when valve closed.The ventilation blower fan drives with nitrogen and makes it to become vacuum area, in case valve produces leakage like this, hazardous medium will be drained into the atmosphere from the closed area, thereby guarantee the safety of green area working area.
Beneficial effect of the present invention is: adapted to some special operation condition situation, particularly in safety precaution, can not influence the situation of function of use, the present invention can substitute glasses valve in addition, compare glasses valve, it is little that it has a volume, and safety class, sealability are higher, operation is simple and reliable, is further improving and development of Connecting rod butterfly valve function.
Description of drawings
Fig. 1 is the structural representation of existing Connecting rod butterfly valve;
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the structural representation of Connecting rod butterfly valve of the present invention;
Fig. 4 is the side view of Fig. 3.
1. valve bodies among the figure; 2. double density seal; 3. bivalve plate; 4. pipeline; 5. ventilation blower fan; 6. stop valve; 7. linkage mechanism; 8. driving oil cylinder; 9. driving arm.
Embodiment
Further introduce the present invention below by embodiment, but embodiment can not be construed as limiting the invention.
As shown in Figure 3-4, vacuum interruption flexible sealing connection rod butterfly valve of the present invention, include valve body 1, escape way, driving oil cylinder 8, driving arm 9, linkage mechanism 7 parts such as grade, compare shown in Fig. 1-2, increased an escape way on the valve body, described escape way includes bivalve plate 3, the bivalve seat, between bivalve plate and bivalve seat, form an enclosed space, described bivalve seat is fixed on the valve body, the bivalve plate forms sealing by double density seal 2 and bivalve seat, escape way is provided with the pipeline 4 that is connected with escape way, be disposed with stop valve 6 and ventilation blower fan 5 on the pipeline from top to bottom, the valve shaft of stop valve matches by linkage mechanism 7 with live axle and is connected.Closing and open by oil cylinder or electronic mode of bivalve plate 3 drives, any change does not take place in the present invention on function, just sealing surface becomes the double-sealing form, and escape way extends an external pipe in addition, and escape way is communicated with or cuts off by stop valve control with atmosphere.Promptly drive stop valve 6 rotations by linkage mechanism 7, stop valve 6 is opened during valve closing, otherwise stop valve 6 is closed behind the valve opening.When stop valve 6 was opened, nitrogen pipeline was open-minded, 5 work of ventilation blower fan.In case valve produces and leaks like this, hazardous medium will be incorporated into the atmosphere from this passage, thereby guarantee the safety of working area.
Claims (2)
1. vacuum interruption flexible sealing connection rod butterfly valve, include valve body (1), live axle, driving oil cylinder (8) and driving arm (9), driving oil cylinder links to each other with valve body by driving arm, it is characterized in that having additional on the valve body escape way, described escape way includes bivalve plate (3), the bivalve seat, at the bivalve plate, form an enclosed space between the bivalve seat, described bivalve seat is fixed on the valve body, the bivalve plate forms sealing by double density seal (2) and bivalve seat, drive shaft bivalve plate opens and closes, escape way is provided with the pipeline (4) that is connected with escape way, be disposed with stop valve (6) and ventilation blower fan (5) on the pipeline from top to bottom, the valve shaft of stop valve matches by linkage mechanism (7) with live axle and is connected.
2. by the described vacuum interruption flexible sealing connection rod butterfly valve of claim 1, it is characterized in that described ventilation blower fan makes escape way become vacuum area with the nitrogen driving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100289403A CN101749441B (en) | 2010-01-08 | 2010-01-08 | Vacuum interruption flexible sealing connection rod butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100289403A CN101749441B (en) | 2010-01-08 | 2010-01-08 | Vacuum interruption flexible sealing connection rod butterfly valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101749441A CN101749441A (en) | 2010-06-23 |
| CN101749441B true CN101749441B (en) | 2011-03-16 |
Family
ID=42476866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010100289403A Expired - Fee Related CN101749441B (en) | 2010-01-08 | 2010-01-08 | Vacuum interruption flexible sealing connection rod butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101749441B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864106A (en) * | 2015-05-26 | 2015-08-26 | 柳州钢铁股份有限公司 | Metal hard sealing butterfly valve with moving valve seat |
| CN107816556A (en) * | 2017-12-05 | 2018-03-20 | 无锡卓尔阀业有限公司 | Double valve plates single shaft double leval jib eccentric-butterfly-valve |
-
2010
- 2010-01-08 CN CN2010100289403A patent/CN101749441B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101749441A (en) | 2010-06-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hubei Noko Machinery Equipment Co.,Ltd. Assignor: WUHAN CHERMANN AUTOMATION Co.,Ltd. Contract record no.: 2011420000256 Denomination of invention: Vacuum interruption flexible sealing connection rod butterfly valve Granted publication date: 20110316 License type: Exclusive License Open date: 20100623 Record date: 20111124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20220108 |