Novel high pressure resistant stop valve
A high-pressure-resistant, stop valve technology, applied in the field of stop valves, can solve the problems of sealing packing or sealing ring gap increase, leakage, etc., to achieve the effect of ensuring the sealing effect, improving the sealing reliability, and improving the sealing and anti-leakage performance
Inactive Publication Date: 2017-07-07
JIANGSU HIDA MARINE VALVE
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
As the use time increases, the gap between the sealing packing or the sealing ring and the outer wall of the valve stem increases due to wear, which cannot keep the globe valve in a good sealing state, which will cause leakage
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] The present invention will be further described below according to the accompanying drawings and in conjunction with the embodiments.
[0017] The new high-pressure globe valve shown in the accompanying drawings includes a valve body 1, a valve seat 2, a valve disc 3, a valve cover 4, a valve stem 8, and a hand wheel 10; The wheel 10 is connected, the lower end body 4.2 is installed on the valve body 1, and the bottom of the lower end body 4.2 has a taper hole of 40-55 degrees, and a shaft seal structure 6 is arranged between the lower end body 4.2 and the outer wall of the valve stem 8; The valve disc 3 is connected with the valve disc connection structure 9 through the valve stem; a conical sealing structure is provided between the valve disc 3 and the valve seat 2 .
[0018] The connection structure 9 between the valve stem and the valve disc includes a connecting sleeve 9.1 and an anti-rotation pad 9.2; the bottom end of the valve stem 8 is provided with a coaxial o...
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 novel high pressure resistant stop valve which comprises a valve body, a valve seat, a valve clack, a valve cover, a valve rod and a hand wheel. The cross section of the valve cover is in a C shape, and a shaft seal structure is arranged between a lower end body and the outer wall of the valve rod; the valve rod is connected with the valve clack through a valve rod and valve clack connecting structure; a taper sealing structure is arranged between the valve clack and the valve seat; the shaft seal structure is an elastic sealing structure; a further improvement is characterized in that a corrugated pipe combination piece is arranged in a taper hole in the bottom of the lower end body of the valve cover; and a downward spherical protruding head is arranged at the lower end of an outwards-protruding ring at the bottom end of the valve rod, a spherical arc-shaped groove corresponding to the spherical protruding head at the lower end of the outwards-protruding ring at the bottom end of the valve rod on the end face is arranged on the end face in a valve clack countersink matched with the edge of the outwards-protruding ring of the valve rod, and the valve rod and the valve clack are movably connected. According to the novel high pressure resistant stop valve, combined seal such as the elastic sealing structure and the corrugated pipe combination piece is adopted, and therefore the novel high pressure resistant stop valve can resist to high pressure; and meanwhile, maintenance is free, and the using cost is low.
Description
technical field [0001] The invention relates to a valve, in particular to a shut-off valve. Background technique [0002] The globe valve includes a valve body, a valve seat, a valve disc, a valve cover, and a valve stem, and a shaft seal structure is arranged between the valve cover and the outer wall of the valve stem. The shaft seal structure in the existing stop valve is to arrange sealing packing or sealing ring in the annular groove between the valve cover and the outer wall of the valve stem, and the sealing packing or sealing ring cooperates with the outer wall of the valve stem to form a shaft sealing structure. As the use time increases, the gap between the sealing packing or the sealing ring and the outer wall of the valve stem increases due to wear, which cannot keep the globe valve in a good sealing state, which will cause leakage. Contents of the invention [0003] The purpose of the present invention is to solve the deficiencies in the prior art, and to pro...
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 Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/00F16K1/36F16K1/32F16K41/02F16K41/10
CPCF16K1/00F16K1/32F16K1/36F16K41/02F16K41/10
Inventor 田江
Owner JIANGSU HIDA MARINE VALVE