CN1888487A - Dynamic and hand-operated insulating and high corrosion-resisting bidirectional sealed butterfly valve - Google Patents
Dynamic and hand-operated insulating and high corrosion-resisting bidirectional sealed butterfly valve Download PDFInfo
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- CN1888487A CN1888487A CN 200510027305 CN200510027305A CN1888487A CN 1888487 A CN1888487 A CN 1888487A CN 200510027305 CN200510027305 CN 200510027305 CN 200510027305 A CN200510027305 A CN 200510027305A CN 1888487 A CN1888487 A CN 1888487A
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Abstract
The invention relates to an air-and hand-actuated thermal-insulation high corrosion-resisting two-way sealing butterfly valve, in which, outside the flange valve body are welded and casted an insulated casing and an inlet-outlet connector means seal valve seat made of deposited stain less acid resistant steel. The seal surface of the valve has the advantages of corrosion-resisting, non-scaling and wear-resisting. A rubber seal ring is fixed on the valve plate via a mechanical system. An air-actuated driving device is incorporated with an interface for transferring state signals to a central control chamber and receiving the signals of the central control chamber, so as to realize the controlled regulation.
Description
The present invention relates to improved butterfly valve on a kind of industrial pipeline, be that the thin butterfly valve pneumatic actuating device of a kind of body has manual and pneumatic double-purpose functional, have manual and pneumatic switching mechanism, handwheel can not rotate when pneumatic, and handwheel can not cause when driving that Pneumatic rotor rotates.Gate valve weight on the existing pipeline is very heavy, can not install on suspended piping, as install and must design a lot of supports, has wasted a large amount of metals and structural material and man-hour, and has influenced the traffic under the pipeline.
The objective of the invention is: a kind of pneumatic and hand operated insulation high corrosion resisting bidirectional sealed butterfly valve is provided, it is the thin valve of a kind of body, butterfly valve reasonable mechanical structure, reliable, axle and valve plate close installation, open and close reliably, have positive and negative two way sealed function, be not subjected to during installation MEDIA FLOW to restriction, be not subjected to the influence of spatial position yet, can on pipeline, install arbitrarily.Valve shaft adopts the semiaxis structure, and valve plate adopts truss structure.Butterfly valve adopts two eccentric sealed structures, and the valve plate seal ring relies on valve body with center displacement and burn-ons outward or cast heat-preservating shell and pass in and out connecting tube device seal valve seat crush seal face when closing, and the seal ring pressurized is even, and has positive and negative two way sealed performance.Valve body is burn-on outward or is cast heat-preservating shell and the making of turnover connecting tube device seal valve seat built-up welding Stainless Acid Resistant Steel, and valve sealing face has corrosion-resistant non-scaling, and is wear-resistant.Rubber seal is fixed on the valve plate with machinery type, and sound construction is convenient to the on-the-spot seal ring of adjusting or change.Drive unit and valve joint are provided with the shaft sealing inspection and adjust the hole, must not dismantle drive unit and other parts again, and axial seal is adjusted or changed by checking, the valve shaft sealing material adopts Expanded graphite.The drive unit outdoor type can prevent dust fully, protection against the tide and waterproof, and no matter valve is used in any operating mode, and drive unit all is in good lubricating status, guarantees the working life of valve.Butterfly valve is furnished with the adjustable mechanical limit stoper and valve plate opens and closes lever position indicator, and the arrow and the switch printed words sign of tangible switch direction all arranged on the wheel rim of driving handwheel.Pneumatic actuating device has manual and pneumatic double-purpose functional, has manual and pneumatic switching mechanism, and handwheel can not rotate when pneumatic, and handwheel can not cause when driving that Pneumatic rotor rotates.Pneumatic actuating device and configuration are to the interface and the signaling interface of accepting central control chamber of Central Control Room transmission state signal.Mechanical cover adopts double sealing structure, and has anti-hammering function.
This product has the following advantages: a kind of pneumatic and hand operated insulation high corrosion resisting bidirectional sealed butterfly valve, include body, mandrel, valve body is burn-on outward or is cast heat-preservating shell and the connection of turnover connecting tube device for mechanical, corrosion-resistant characteristics, butterfly plate has cam action and except all contact frictions between Sealing in valve stroke and the valve seat, making it frequent keying is the sealing effect that still has all the time, seal ring contacts with valve seat with certain wrapping angle, face is equivalent to an elongated wedge again around centering on it equably, and make active force be evenly distributed on the valve seat fully, owing to be that valve seat is stressed, valve shaft adopts the semiaxis structure, and valve plate adopts truss structure.Butterfly valve adopts two eccentric sealed structures, and the valve plate seal ring relies on valve body with center displacement and burn-ons outward or cast heat-preservating shell and pass in and out connecting tube device seal valve seat crush seal face when closing, and the seal ring pressurized is even, and has positive and negative two way sealed performance.Valve body is burn-on outward or is cast heat-preservating shell and the making of turnover connecting tube device seal valve seat built-up welding Stainless Acid Resistant Steel, and valve sealing face has corrosion-resistant non-scaling, and is wear-resistant.Rubber seal is fixed on the valve plate with machinery type, and sound construction is convenient to the on-the-spot seal ring of adjusting or change.
Be widely used in: oilfield exploitation, chemical industry, petrochemical industry, coal gas, rock gas, thermoelectricity, the water power plant, iron and steel, urban construction, tap water, sewage treatment, pharmacy, engineerings such as food are particularly used on the pipeline transport engineering.
The present invention is easy to use, exchange to install light and handy, when below adopting during embodiment, gate valve under pressure and the material and stop valve, its weight only is 1/3 of gate valve and stop valve, so has reduced cost greatly.
Fig. 1 is the longitudinal sectional drawing of a kind of concrete structure of the present invention.
Describe details and the working condition that proposes concrete structure according to the present invention in detail below in conjunction with Fig. 1.
This invention is by 1, end cap, 2, socket head screw, 3, pad, 4, valve rod, 5, copper sheathing, 6, valve body is burn-on outward or is cast heat-preservating shell and turnover connecting tube device, 7, the dish plate, 8, seal ring, 9, trim ring, 10, hex screw, 11, pin, 12, filler, 13, Gland, 14, support, 15, double-screw bolt, 16, packing ring, 17, stud, 18, nut, 19, compositions such as air control unit, control gear 19 connects 4 one groups of butterfly plates 7 of valve rods, by bolton on valve rod 4, valve body is burn-on outward or is cast heat-preservating shell and turnover connecting tube device 6 sealing surfaces and butterfly plate 7 sealing couplings, air control unit coal gas, rock gas is to reach sealing purpose, air control unit adapts to especially at coal gas, uses on the natural gas line.
Claims (1)
- A kind of pneumatic and hand operated insulation high corrosion resisting bidirectional sealed butterfly valve, by end cap, socket head screw, pad, valve rod, copper sheathing, the dish plate, seal ring, trim ring, hex screw, pin, filler, Gland, support, double-screw bolt, packing ring, stud, nut, flange valve is external burn-ons or casts heat-preservating shell and turnover connecting tube device, compositions such as Pneumatic actuator, it is characterized in that: air control unit and mandrel mechanical connection, control gear and flange valve be external burn-ons or casts heat-preservating shell and turnover connecting tube device for mechanical is connected, pay butterfly plate with one group of sealing and be connected on the mandrel with bolt machinery, pneumatic actuating device and configuration are to the interface and the signaling interface mechanical connection of accepting central control chamber of Central Control Room transmission state signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510027305 CN1888487A (en) | 2005-06-29 | 2005-06-29 | Dynamic and hand-operated insulating and high corrosion-resisting bidirectional sealed butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510027305 CN1888487A (en) | 2005-06-29 | 2005-06-29 | Dynamic and hand-operated insulating and high corrosion-resisting bidirectional sealed butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1888487A true CN1888487A (en) | 2007-01-03 |
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ID=37577774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510027305 Pending CN1888487A (en) | 2005-06-29 | 2005-06-29 | Dynamic and hand-operated insulating and high corrosion-resisting bidirectional sealed butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1888487A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9091363B2 (en) | 2010-12-20 | 2015-07-28 | Alstom Technology Ltd. | High temperature steam valve |
| CN105333162A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Automatic regulating valve disc |
-
2005
- 2005-06-29 CN CN 200510027305 patent/CN1888487A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9091363B2 (en) | 2010-12-20 | 2015-07-28 | Alstom Technology Ltd. | High temperature steam valve |
| CN105333162A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Automatic regulating valve disc |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |