High-pressure and energy-saving universal type parallel double-valve flap gate valve
A dual-disc, general-purpose technology, applied in sliding valves, valve details, valve devices, etc., can solve the problems that ordinary gate valves cannot be used in general, difficult to manufacture, complex in structure, etc., and achieves remarkable energy-saving effect, good versatility, and structure. reasonable effect
Active Publication Date: 2012-07-11
南通高中压阀门有限公司
View PDF7 Cites 5 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] Most parts of the existing parallel double-disc gate valve cannot be used in common with ordinary gate valves, and the flow resistance is relatively large
The original parallel double-disc gate valve ZL200820034537.X, ZL200820034540.1 and other patents, the structure is more complex and difficult to manufacture
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
[0016] figure 1 Schematic diagram of the structure of a parallel double valve disc with diversion holes > 6". The parallel valve seat 2 is welded to the valve body 1, and the valve disc frame 6 has holes of the same size as the valve seat 2. When fully open, the valve disc frame The upper hole is flush with the valve seat hole, making the valve into a straight pipe, which greatly reduces the flow resistance.
[0017] The two disc springs 4 are equipped with a disc spring 5 and an adjustment support 5a, and are loosely fitted in the disc frame 6. The suitable type and combination of disc springs can make the valve disc and the valve seat establish a preliminary seal. There is a limit screw 7 to limit the opening position of the valve disc. There are two limit holes in the T-shaped slot to limit the movement range of the limit screw. The head of the valve stem 9 is in the form of blocking the screw and preventing the screw from loosening. To ensure the smooth movement of the va...
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 discloses a high-pressure and energy-saving universal type parallel double-valve flap gate valve, which comprises a valve body, a valve seat, a parallel double-valve flap component, a valve rod, a valve cover sealing component, a stuffing sealing component and a bracket, wherein a T-shaped groove used for connecting with the valve rod is arranged on a valve flap frame of the parallel double-valve flap component, a limiting screw for limiting the opening position of the valve flap is arranged on the valve flap frame, two limit holes for limiting the range of movement of the limiting screw is arranged in the T-shaped groove, and the head part of the valve rod is in a form of blocking the screw and preventing the screw from loosening out; a circular flow guide hole with the same dimension of a valve seat hole is arranged on the bottom of the valve flap frame, and the circular flow guide hole on the valve flap frame is flush with the valve seat hole if the gate valve is completely open to change the valve into a straight tube; and a disc spring group and an adjusting support are installed in the valve flap. The high-pressure and energy-saving universal type parallel double-valve flap gate valve disclosed by the invention has the advantages of reasonable structure, good universality and excellent energy-saving effect, so that the gate valve has brilliant generalization and application prospect in such high-end markets as supercritical thermal power, nuclear power and petrochemical hydrogenation, etc.
Description
technical field [0001] The invention relates to a parallel double disc gate valve. Background technique [0002] Most of the parts of the existing parallel double-disc gate valve cannot be used in common with ordinary gate valves, and the flow resistance is relatively large. However, the original parallel double-disc gate valve ZL200820034537.X, ZL200820034540.1 and other patents have a more complicated structure and are more difficult to manufacture. Contents of the invention [0003] The object of the present invention is to provide a high-pressure, energy-saving and general-purpose parallel double-disc gate valve with reasonable structure and remarkable energy-saving effect. [0004] Technical solution of the present invention is: [0005] A high-pressure energy-saving general-purpose parallel double-disc gate valve, including a valve body, a valve seat, a parallel double-disc assembly, a valve stem, a bonnet seal assembly, a packing seal assembly, a bracket, and a va...
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): F16K3/18F16K41/02F16K37/00F16K27/04
Inventor 陈崇南
Owner 南通高中压阀门有限公司