Floating ball valve

A technology of floating ball valve and valve stem, which is applied in the direction of valve details, valve device, valve shell structure, etc., can solve problems such as leakage and affecting service life, so as to ensure safety and reliability, strengthen sealing, and avoid internal leakage and external leakage. Dangerous effect of leakage

Active Publication Date: 2015-09-02
CHANGZHENG ENG +1
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, if the graphite filler is used for a period of time, if the bolts are not frequently tightened, it will leak, thus affecting the service life

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Floating ball valve
  • Floating ball valve
  • Floating ball valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Attached below Figure 1~4 To further describe the invention in detail, the description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present invention.

[0023] Such as figure 1 As shown, a floating ball valve proposed by the present invention includes: a valve body composed of a first valve body part 1 and a second valve body part 2, which are detachably connected; in the valve body, the ball 4 is floating, and the valve stem 3 to drive the sphere 4 to complete the switching action. When the valve is closed, the ball 4 has a certain displacement under the medium pressure and presses tightly on the valve seat 5 at the outlet end to form a spherical seal; the valve stem guide structure 6 maintains the stability of the valve stem 3, and the stuffing box 8 is equipped with The packing and the valve stem sealing structure 7 ensure the sealing performance of the valve stem 3 and prevent the medium fr...

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

No PUM Login to view more

Abstract

The invention discloses a pipeline control valve, and particularly provides a floating ball valve. The floating ball valve comprises a valve body, a valve rod, a ball body and a valve seat. The valve seat is provided with a V-shaped groove and a chamfer structure. The cross section of the V-shaped groove is V-shaped. The opening end of the V-shaped groove is positioned on the outer circle side of the valve seat and contacts with the valve body. The chamfer structure is positioned on the end face, away from the ball body, of the valve seat and is a recessed tangent plane. Through new design of a valve seat structure, a valve rod guide structure and a valve rod sealing structure, the problem that positions, between the ball body and the valve seat and between the ball body and the valve rod, of the floating ball valve are easy to leak during actual working is solved, sealing of the positions, between the ball body and the valve seat and between the ball body and the valve rod, of the floating ball valve is improved, internal leakage and external leakage of the floating ball valve are avoided, and safety and reliability of the ball valve are guaranteed.

Description

technical field [0001] The invention relates to a pipeline control valve, in particular to a floating ball valve. Background technique [0002] The ball valve has a wide range of applications due to its characteristics of small flow resistance, fast switching, good sealing performance, long service life, and convenient air control and electric control. Floating ball valve is an important type of ball valve. It has the characteristics of compact structure, reliable sealing, simple structure and convenient maintenance. Since the sealing surface formed by the ball and the valve seat is always in a closed state, it is not easy to be damaged by medium erosion and easy to operate. It is suitable for general working media such as water, solvent, acid and natural gas, and also suitable for media with harsh working conditions, such as oxygen, hydrogen peroxide, methane and ethylene, etc., and has been widely used in various industries. [0003] There are many types of ball valves th...

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
no application Login to view more
IPC IPC(8): F16K5/06F16K5/08F16K41/02F16K27/06
CPCF16K5/06F16K5/08F16K27/067F16K41/026
Inventor 赵海燕李峰俞晓龙盖玉龙曹宇
Owner CHANGZHENG ENG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap