CN102192340A - Ball valve - Google Patents

Ball valve Download PDF

Info

Publication number
CN102192340A
CN102192340A CN2010101273972A CN201010127397A CN102192340A CN 102192340 A CN102192340 A CN 102192340A CN 2010101273972 A CN2010101273972 A CN 2010101273972A CN 201010127397 A CN201010127397 A CN 201010127397A CN 102192340 A CN102192340 A CN 102192340A
Authority
CN
China
Prior art keywords
valve
bases
rod
ball
valve rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2010101273972A
Other languages
Chinese (zh)
Inventor
张逸芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU DONGYUAN NUCLEAR POWER VALVE ENGINEERING TECHNOLOGY RESEARCH CENTER Co Ltd
Original Assignee
JIANGSU DONGYUAN NUCLEAR POWER VALVE ENGINEERING TECHNOLOGY RESEARCH CENTER Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JIANGSU DONGYUAN NUCLEAR POWER VALVE ENGINEERING TECHNOLOGY RESEARCH CENTER Co Ltd filed Critical JIANGSU DONGYUAN NUCLEAR POWER VALVE ENGINEERING TECHNOLOGY RESEARCH CENTER Co Ltd
Priority to CN2010101273972A priority Critical patent/CN102192340A/en
Publication of CN102192340A publication Critical patent/CN102192340A/en
Pending legal-status Critical Current

Links

Abstract

The invention provides a ball valve which comprises a valve body, a valve cover, a ball body, an upper valve rod, a lower valve rod, valve bases and seal rings, wherein the ball body is arranged in a cavity of the valve body, the seal rings are embedded in the valve bases, the valve bases are sealed with the valve body through O-shaped rings, the valve bases are arranged on the two sides of the cavity of the valve body, steps are arranged on the backs of the bases, springs are arranged between the steps of the bases and the valve body, and the valve cover is arranged on the valve body. Elastic seal pads are also arranged between the bottoms of the seal rings and the valve bases, the ball body is integrated with the upper valve rod and the lower valve rod, a sliding bearing is arranged between the upper valve rod and the valve cover, and a sliding bearing is arranged between the lower valve rod and the valve body. The invention has the beneficial effect that by adopting a top assembly type structure, the valve bases, the ball body, the seal rings and the like are all arranged from the top, thus the examination is convenient and quick.

Description

A kind of ball valve
Technical field
The present invention relates to a kind of valving, especially is a kind of ball valve.
Background technique
Using at high-pressure ball valve metallurgical, petrochemical field at present, the general three stage structure that adopts, be that valve gap respectively is equipped with in the valve body both sides, be connected by bolt and nut between valve body and the valve gap, when maintenance, valve need be pulled down from pipeline, could change easily damaged partss such as seal ring after valve disintegrated, time-consuming.Ducted poisonous and harmful medium easily leaks when overhauling in addition, and the maintenance man is damaged and environment is polluted.
Summary of the invention
Adopt three stage structure in order to overcome existing high-pressure ball valve, time-consuming during maintenance, and the deficiency that the poisonous and harmful medium easily damages and pollutes maintenance man and environment in the pipeline, the invention provides a kind of ball valve.
The technical solution adopted for the present invention to solve the technical problems is a kind of ball valve, comprise valve body, valve gap, spheroid, upper valve rod, lower valve rod, valve seat, seal ring, spheroid is installed in body cavity, seal ring is embedded in the valve seat, by seal with O ring, body cavity two sides are equipped with valve seat between valve seat and the valve body, and the back of valve seat is provided with step, between the step of valve seat and the valve body spring is housed, valve gap is installed on the valve body.
Between seal ring bottom and the valve seat elastic sealing gasket is installed also, spheroid and upper valve rod, lower valve rod are an integral body, between upper valve rod and the valve gap sliding bearing are housed, and between lower valve rod and the valve body sliding bearing are housed.
The invention has the beneficial effects as follows and adopted last dress formula structure, valve seat, spheroid, seal ring etc. are all packed into from top, and be convenient and swift during maintenance, and can not damage and pollute personnel and environment.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the tectonic maps of present embodiment;
Among the figure: 1. upper valve rod; 2. valve gap; 3. spheroid; 4. spring; 5. seal ring; 6. valve seat; 7. elastic sealing gasket; 8.O shape circle; 9. valve body; 10. lower valve rod; 11. sliding bearing.
Embodiment
As shown in Figure 1, a kind of ball valve, comprise valve body 9, valve gap 2, spheroid 3, upper valve rod 1, lower valve rod 10, valve seat 6, seal ring 5, spheroid 3 is installed in valve body 9 inner chambers, seal ring 5 is embedded in the valve seat 6, seal by O shape circle 8 between valve seat 6 and the valve body 9, valve body 9 inner chambers two sides are equipped with valve seat 6, the back of valve seat 6 is provided with step, between the step of valve seat 6 and the valve body 9 spring 4 is housed, spring 4 promotes valve seat 6 and contacts with spheroid 3 sealing surfaces with seal ring 5, realizes initial sealing, realize the self-powering type sealing by pressure medium during work, valve gap 2 is installed on the valve body 9.
Between seal ring 5 bottoms and the valve seat 6 elastic sealing gasket 7 is installed also, spheroid 3 is an integral body with upper valve rod 1, lower valve rod 10, between upper valve rod 1 and the valve gap 2 sliding bearing 11 is housed, between lower valve rod 10 and the valve body 9 sliding bearing 11 is housed, the relative friction forces square is little in the process that opens and closes, and opens and closes flexibly.
Valve gap 2 is installed on the valve body 9, valve seat 6, spheroid 3, seal ring 5 all can be packed into from the top of valve body 9, do not need during maintenance valve is pulled down from pipeline, only need open valve gap 2, spheroid 3 is taken out easily damaged partss such as can changing seal ring 5, O shape circle 8 easily, easy to maintenance quick, and effectively prevented poisonous and harmful medium pollution on the environment.

Claims (3)

1. ball valve, comprise valve body, valve gap, spheroid, upper valve rod, lower valve rod, valve seat, seal ring, spheroid is installed in body cavity, seal ring is embedded in the valve seat, by seal with O ring, it is characterized in that: described body cavity two sides are equipped with valve seat, and the back of valve seat is provided with step between valve seat and the valve body, between the step of valve seat and the valve body spring is housed, valve gap is installed on the valve body.
2. ball valve according to claim 1 is characterized in that: between described seal ring bottom and the valve seat elastic sealing gasket is installed also.
3. ball valve according to claim 1 and 2 is characterized in that: described spheroid and upper valve rod, lower valve rod are an integral body, between upper valve rod and the valve gap sliding bearing are housed, and between lower valve rod and the valve body sliding bearing are housed.
CN2010101273972A 2010-03-19 2010-03-19 Ball valve Pending CN102192340A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010101273972A CN102192340A (en) 2010-03-19 2010-03-19 Ball valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010101273972A CN102192340A (en) 2010-03-19 2010-03-19 Ball valve

Publications (1)

Publication Number Publication Date
CN102192340A true CN102192340A (en) 2011-09-21

Family

ID=44600980

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010101273972A Pending CN102192340A (en) 2010-03-19 2010-03-19 Ball valve

Country Status (1)

Country Link
CN (1) CN102192340A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102367879A (en) * 2011-11-21 2012-03-07 苏州纽威阀门股份有限公司 Top-entry floating ball valve
CN105422976A (en) * 2015-12-21 2016-03-23 中国海洋石油总公司 Blowing-in preventing structure of valve rod of underwater ball valve
CN105570488A (en) * 2016-02-03 2016-05-11 台州苏捷制阀有限公司 DC low-voltage IC card electric ball valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102367879A (en) * 2011-11-21 2012-03-07 苏州纽威阀门股份有限公司 Top-entry floating ball valve
CN105422976A (en) * 2015-12-21 2016-03-23 中国海洋石油总公司 Blowing-in preventing structure of valve rod of underwater ball valve
CN105570488A (en) * 2016-02-03 2016-05-11 台州苏捷制阀有限公司 DC low-voltage IC card electric ball valve

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Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20110921