CN201065962Y

CN201065962Y - Double-eccentricity v-shaped regulation ball valve

Info

Publication number: CN201065962Y
Application number: CNU2007200853550U
Authority: CN
Inventors: 王洪运; 张军仿; 陈甲华; 周达
Original assignee: HUBEI HONGCHENG GENERAL MACHINERY CO Ltd
Current assignee: Hubei Hongcheng General Machinery Co., Ltd.
Priority date: 2007-06-20
Filing date: 2007-06-20
Publication date: 2008-05-28
Anticipated expiration: 2017-06-20

Abstract

The utility model relates to a double-eccentricity V-shaped adjusting ball valve, which is in particular suitable for a valve which contains fiber solid or pulp medium for obstructing or adjusting the flow quantity. A transmission device is connected at the top of a valve body and connected with a valve shaft in the valve body, a valve seat in the valve body is connected with a ball body through an adjusting screw, a sealing ring is arranged on the valve body, the central line of the V-shaped ball body is angularly deviated from the central line of the valve body, and a sealing pair is deviated from the central line of the valve shaft. The utility model adopts the double eccentricity, the V-shaped ball body and an adjustable structure, thus the flow area of a pipeline is large, the flow quantity characteristic approaches to the equal percentage, the weight of the ball body is about one third the weight of the prior ball body, and the sealing pair is adjustable.

Description

Two eccentric V-types are regulated ball valve

Technical field:

The utility model relates to ball valve, is specially adapted to the ball valve that contains fibre solid particle or slurry medium work partition, regulates flow.

Background technique:

Being widely used in spy's industries such as electric power, metallurgy, oil, chemical industry, environmental protection, medicine, food makes to cut off medium or regulates the ball valve that flow is used, its spheroid is a single piece, its valve seal sealing seat is symmetry fully, when valve opens and closes in the process, friction is arranged between valve seals and the spheroid all the time, seal ring is worn and causes valve leak, its valve seal poor performance.Valve that leaks or replacing seal ring or replacing valve.Like this, will inevitably increase user's economic burden.

Summary of the invention:

The purpose of this utility model is to provide a kind of two eccentric V-type to regulate ball valve, and it is that a kind of sealability is reliable, and valve easy to adjust, energy-conservation.

The technical solution of the utility model is as follows:

The utility model comprises transmission device, valve body, spheroid, valve seat, valve shaft, seal ring, transmission device is connected in the top of valve body, and link to each other with valve shaft in the valve body, spheroid is connected on the valve shaft, valve seat and links to each other with spheroid bottom in valve body, and seal ring its spheroid on valve body is a V-type, ball centre line and valve body center line drift angle, sealing pair and valve shaft disalignment.Valve seat is connected by adjusting screw with valve body.

Advantage of the present utility model is as follows:

1, the utility model has adopted the structure of two off-centre, during Open valve, spheroid and valve body is thrown off rapidly, and during closure, its sealing pair is in conjunction with tight, and sealing does not have leakage.

2, the utility model has been eliminated the error that produces because of processing and installation etc. by the sealing of adjusting screw regulating valve seat and spheroid, and good airproof performance does not produce jam.

3, spheroid of the present utility model is a V-type, is about 1/3 of existing pipeline ball-valve spheroid, and it not only has the characteristic of ball valve, possesses gate valve simultaneously, the advantage of butterfly valve, and the Flow-rate adjustment characteristic is good, and its Flow characteristics is approximate equal percentage.

4, the utility model circulation area is big, and flow resistance coefficient is little, and the pressure loss is little.

Description of drawings:

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model structure plan view.

Embodiment:

Below in conjunction with accompanying drawing embodiment, the utility model is further described:

Among Fig. 1-2:

Transmission device 1 is installed in the top of valve body 7 and is connected with the top of valve shaft 2 in the valve body 7, valve body 7 passes through filler 3 with valve shaft 2, bearing 4 connects, spheroid 5 is a V-type, spheroid 5 is in valve body 7, the top of spheroid 5 links to each other with valve shaft 2, valve seat 6 in bottom and the valve body 7 links to each other, seal ring 8 is between valve body 7 and valve seat 6, valve seat 6 is connected with spheroid 5 usefulness adjusting screw 10, the sealing of its adjusting screw 10 can regulate valve seats 6 and spheroid 5, spheroid 5 center line B and valve body 7 center line A drift angles, sealing pair C and valve shaft center line D skew.

Claims

1. two eccentric V-types are regulated ball valve, comprise transmission device (1), valve body (7), spheroid (5), valve seat (6), valve shaft (2), seal ring (8), transmission device (1) is connected in the top of valve body (7), and with valve body (7) in valve shaft (2) link to each other, spheroid (5) is connected on the valve shaft (2), valve seat (6) is in valve body (7), and bottom spheroid (5), link to each other, it is characterized in that: seal ring (8) is on valve body (7), its spheroid (5) is a V-type, spheroid (5) center line (B) and valve body (7) center line (A) drift angle, sealing pair (C) and valve shaft (2) center line (D) skew, valve seat (6) is connected by adjusting screw (10) with spheroid (5).