Automatic swing type check valve
A swing-type, check valve technology, applied in the direction of control valves, valve devices, functional valve types, etc., can solve the problems of high corrosion, short service life of valves, frequent replacement, etc., and achieve good corrosion resistance and sealing performance Good, long service life effect
Inactive Publication Date: 2009-02-18
江苏明江阀业有限公司
View PDF0 Cites 5 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] At present, most of the valves used in my country's chemical industry to control highly corrosive flowing media such as chlor-alkali are ordinary cast iron valves with no lining or part of lining. They are used to control liquid flow on chlor-alkali pipelines. They are highly corrosive, and the lining is easy to fall off and easily damaged. , leakage, or even safety accidents, the service life of the valve is short, the replacement is frequent, affecting production, and causing economic losses; most ordinary check valves use the handwheel to rotate the valve stem to drive the valve disc to move up and down to close or open the valve. The return valve cannot be adjusted in real time with the flow of the medium, and the operation is cumbersome
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0017] The automatic swing check valve of the present invention will be further described below in conjunction with the accompanying drawings.
[0018] Such as figure 1 As shown, an automatic swing check valve includes a valve body 1, a valve cover 2, and a valve disc 3. The difference is that a pin shaft 21 is fixed on the connection surface between the valve cover 2 and the valve body 1, and the above valve One end of the flap 3 is set on the above-mentioned pin shaft 21, and the above-mentioned valve flap 3 performs reciprocating rotation in the valve body 1 centering on the above-mentioned pin shaft 21; Anti-corrosion layers 41, 42, the outer surface of the above-mentioned valve flap 3 is covered with an anti-corrosion layer 43.
[0019] Grooves 5 are provided on the inner surface and the terminal surface of the above-mentioned valve body 1 and valve cover 2 , and the above-mentioned anti-corrosion layers 41 , 42 penetrate into the grooves 5 .
[0020] The notch width of...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention disclose an automatic swing check valve which comprises a valve body, a valve cover, a valve flap and is characterized in that a pin shaft is fixed on the connection surface of the valve cover and the valve body; one end of the valve flap is nested on the pin shaft; the valve flap processes reciprocating rotations around the pin shaft inside the valve body. The check valve has the advantages of good seal performance, erosion resistance, being adjusted according the flow rate of the medium real-timely, safety, reliability and long service life.
Description
technical field [0001] The invention relates to a valve, in particular to a chlor-alkali special check valve for controlling and regulating medium flow on a chemical industry pipeline. Background technique [0002] At present, most of the valves used in my country's chemical industry to control highly corrosive flowing media such as chlor-alkali are ordinary cast iron valves with no lining or part of lining. They are used to control liquid flow on chlor-alkali pipelines. They are highly corrosive, and the lining is easy to fall off and easily damaged. , leakage, or even safety accidents, the service life of the valve is short, the replacement is frequent, affecting production, and causing economic losses; most ordinary check valves use the handwheel to rotate the valve stem to drive the valve disc to move up and down to close or open the valve. The return valve cannot be adjusted in real time with the flow of the medium, and the operation is cumbersome. Contents of the inven...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): F16K15/03
Inventor 陶永红陈善俊
Owner 江苏明江阀业有限公司