CN201802909U - Hard sealing ball valve with high temperature and high pressure - Google Patents

Hard sealing ball valve with high temperature and high pressure Download PDF

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Publication number
CN201802909U
CN201802909U CN2010202927300U CN201020292730U CN201802909U CN 201802909 U CN201802909 U CN 201802909U CN 2010202927300 U CN2010202927300 U CN 2010202927300U CN 201020292730 U CN201020292730 U CN 201020292730U CN 201802909 U CN201802909 U CN 201802909U
Authority
CN
China
Prior art keywords
valve
valve seat
ball
sealing
high temperature
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.)
Expired - Fee Related
Application number
CN2010202927300U
Other languages
Chinese (zh)
Inventor
缪志明
卢合奎
叶得莉
古邦宇
曾寿平
龚王军
赵刚
史利明
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.)
Chengdu Chengfeng Valve Co Ltd
Original Assignee
Chengdu Chengfeng Valve 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 Chengdu Chengfeng Valve Co Ltd filed Critical Chengdu Chengfeng Valve Co Ltd
Priority to CN2010202927300U priority Critical patent/CN201802909U/en
Application granted granted Critical
Publication of CN201802909U publication Critical patent/CN201802909U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a hard sealing ball valve with high temperature and high pressure, which belongs to the technical fields of the design and the manufacture of valves. The utility model has the structure that the hard sealing ball valve with high temperature and high pressure comprises a valve body comprising a left valve body and a right valve body, a valve seat arranged in the valve body, a floating type ball body installed between the valve seat and the right valve body, a valve rod connected to the ball body and a handle connected to the valve rod. The hard sealing ball valve with high temperature and high pressure is characterized in that the valve seat is an upstream valve seat installed in the left valve body, and a disc spring is installed between the valve seat and the left valve body. Pretightening sealing force is applied to the upstream valve seat by utilizing the disc spring, so that reliable contact is kept between the upstream valve seat and the ball body and between the ball body and the right valve body to realize advance sealing; and after the pressure is raised, self-tightening sealing is realized by means of the pressure of a medium. The utility model can replace a soft sealing ball valve of a traditional used rubber sealing ring for use.

Description

The High Temperature High Pressure hard seal ball valve
Technical field
The utility model relates to the ball valve that pipeline, medium is opened and closed usefulness on the high-temperature high-pressure medium pipeline.Belong to valve design, manufacturing technology field.
Background technique
Ball valve is developed by the stopcock stopcock, and spheroid is along with the rotation of valve rod realizes switching motion, and the open-shut device of ball valve is a spheroid with holes, and swaying by spheroid reaches the purpose that opens and closes pipeline, medium.The formation of existing ball valve comprises left valve barrel, right valve barrel, be arranged on valve seat in the valve body, be installed in the floating type spheroid between valve seat and the right valve barrel and be connected in the valve rod of spheroid, and the sealing between spheroid and the valve seat adopts the rubber-like seal ring to seal.The shortcoming of the ball valve of this employing soft sealing material is that seal ring can not be high temperature resistant, and its applicable working condition temperature is not high, and this has restricted the use of ball valve on high-temperature and pressure pipeline greatly.
The model utility content
The purpose of this utility model is the above-mentioned shortcoming that overcomes prior art, and a kind of High Temperature High Pressure hard seal ball valve of, reliable operation good in high temperature and high pressure condition lower seal performance is provided.
The formation that realizes the High Temperature High Pressure hard seal ball valve of the utility model purpose comprises the valve body that is made of left valve barrel, right valve barrel, be arranged on valve seat in the valve body, be installed in floating type spheroid between valve seat and the right valve barrel, be connected in the valve rod of spheroid and be connected in the handle of valve rod, it is characterized in that described valve seat is the upstream valve seat that is installed in the left valve barrel, is equipped with a dish-shaped spring between described valve seat and left valve barrel.
The utility model utilizes belleville spring to apply a pretension sealing force for the upstream valve seat by a dish-shaped spring is installed between valve seat and left valve barrel, makes between upstream valve seat and the spheroid, to keep reliably contact realization between spheroid and the right valve barrel pre-sealed; After pressure rises, rely on pressure medium to realize self-tightening sealing, pressure is big more, and seal pressure is high more, seals reliable more.
Content of the present utility model further illustrates with the following Examples.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Embodiment
As shown in Figure 1, the formation of this High Temperature High Pressure hard seal ball valve comprises the valve body that is made of left valve barrel 1, right valve barrel 7, be arranged on valve seat 3 in the valve body, be installed in spheroid 4 in the valve seat 3, be connected in the valve rod 6 of spheroid 4 and be connected in the handle 5 of valve rod 6, all continues to use existing ball-valve structure.It is characterized in that described valve seat 3 for being installed in the upstream valve seat in the left valve barrel 1, is equipped with a dish-shaped spring 2 between valve seat 3 and left valve barrel 1.Implement a pretightening force by belleville spring 2 when just closing and play initial sealing, after pressure medium applies, rely on pressure medium to reach self-tightening sealing.

Claims (1)

1. High Temperature High Pressure hard seal ball valve, comprise the valve body that constitutes by left valve barrel, right valve barrel, be arranged on valve seat in the valve body, be installed in floating type spheroid between valve seat and the right valve barrel, be connected in the valve rod of spheroid and be connected in the handle of valve rod, it is characterized in that described valve seat is the upstream valve seat that is installed in the left valve barrel, is equipped with a dish-shaped spring between described valve seat and left valve barrel.
CN2010202927300U 2010-08-16 2010-08-16 Hard sealing ball valve with high temperature and high pressure Expired - Fee Related CN201802909U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202927300U CN201802909U (en) 2010-08-16 2010-08-16 Hard sealing ball valve with high temperature and high pressure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202927300U CN201802909U (en) 2010-08-16 2010-08-16 Hard sealing ball valve with high temperature and high pressure

Publications (1)

Publication Number Publication Date
CN201802909U true CN201802909U (en) 2011-04-20

Family

ID=43872408

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010202927300U Expired - Fee Related CN201802909U (en) 2010-08-16 2010-08-16 Hard sealing ball valve with high temperature and high pressure

Country Status (1)

Country Link
CN (1) CN201802909U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102840358A (en) * 2012-08-29 2012-12-26 江阴万讯自控设备有限公司 Single-flow-direction floating ball metal hard seal ball valve
CN102927311A (en) * 2012-11-10 2013-02-13 无锡智能自控工程股份有限公司 One-way sealing top-installing adjusting ball valve
CN104214361A (en) * 2013-05-30 2014-12-17 上海纽京工业设备有限公司 Hydrogen floating metal sealing ball valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102840358A (en) * 2012-08-29 2012-12-26 江阴万讯自控设备有限公司 Single-flow-direction floating ball metal hard seal ball valve
CN102927311A (en) * 2012-11-10 2013-02-13 无锡智能自控工程股份有限公司 One-way sealing top-installing adjusting ball valve
CN104214361A (en) * 2013-05-30 2014-12-17 上海纽京工业设备有限公司 Hydrogen floating metal sealing ball valve

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110420

Termination date: 20120816