CN201326769Y

CN201326769Y - Small flow V-shaped opening eccentric regulation ball valve

Info

Publication number: CN201326769Y
Application number: CNU200820217414XU
Authority: CN
Inventors: 陈彦; 杨密龙; 王宽
Original assignee: WUXIN INTELLIGENT AUTOMATIC CONTROL ENGINEERING Co Ltd
Current assignee: Wuxi Smart Auto Control Engineering Co Ltd
Priority date: 2008-11-20
Filing date: 2008-11-20
Publication date: 2009-10-14
Anticipated expiration: 2018-11-20

Abstract

The utility model relates to a small flow V-shaped opening eccentric regulation ball valve, which comprises a liquid inlet and a liquid outlet that are formed on a valve body. The liquid inlet is communicated with the liquid outlet through a valve cavity, a tubular valve seat with one end stretching into the valve cavity is arranged in the valve body, and the valve seat is arranged on a pressing ring in the valve body at the liquid outlet through a valve seat supporting ring. A valve shaft which penetrates through the valve cavity is rotatably connected in the valve body. A hemispherical valve ball which is matched with the valve seat is fixedly arranged on the valve shaft in the valve cavity, and an executing mechanism is arranged on the valve shaft which stretches out the valve body. The utility model is characterized in that a V-shaped slot is formed on the spherical surface wall body of a valve ball, and the peripheral range of the V-shaped slot is less than the peripheral range of the valve hole of the valve seat. The ball valve can separate the ball and the valve body quickly; when closing, a sealing pair is bonded tightly, and no sealing leakage is caused; in addition, the regulating property is good, and the weight of the valve body can be reduced.

Description

Small flow V mouth eccentric adjustment ball valve

Technical field

The utility model relates to a kind of ball valve, especially a kind of small flow V mouth eccentric adjustment ball valve.

Background technique

At present, the various V-types of domestic production are regulated in the ball valve.Spheroid is a hemisphere all, has v-notch on spheroid.Because v-notch plays a part to regulate flow, so the size of spheroid has substantially just determined the size of otch, like this under the occasion that needs small flow to regulate, the V-type ball valve is for fear of the processing of spheroid and the typing of otch, make it undesirable to metering characteristics, do not reach usage requirement, and need often to safeguard.And may need to change valve, will inevitably increase user's economic burden.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of small flow V mouth eccentric adjustment ball valve reliable, easy to adjust that seals is provided.

The technological scheme that provides according to the utility model, described small flow V mouth eccentric adjustment ball valve, be included in liquid entering hole and liquid outlet that valve body is offered, liquid entering hole is communicated with by valve pocket with liquid outlet, in valve body, be provided with an end and stretch into tubular valve seat in the valve pocket, described valve seat is installed in by the valve seat bracing ring on the trim ring in the valve body at liquid outlet place, in valve body, be rotatably connected to the valve shaft that passes valve pocket, be fixed with the hemispheric valve ball that cooperates with valve seat on the valve shaft of valve pocket being positioned at, on the valve shaft that stretches out the valve body outside, be provided with actuator, offer V-shaped groove on the sphere wall body of valve ball, the edge extent of described V-shaped groove is less than the valve opening edge of valve seat.

The center of described valve ball and the axis of valve seat are skew setting.Be provided with elastic component between valve seat and the valve seat bracing ring.

Advantage of the present utility model is as follows:

1, adopted the axis of the center of valve ball and valve seat to be skew structure is set, during Open valve, spheroid and valve body have been thrown off rapidly, when closed, sealing pair is in conjunction with closely, and sealing does not have leakage.

2, spheroid adjustment curve characteristic becomes the V-type notch by original v-notch, has realized especially regulating less than 9 situation down-offs in the Cv value under the small flow.Control characteristic is good, and its Flow characteristics is approximate equal percentage.

3, valve ball adopts semiglobe, and spheroid has alleviated valve weight for 1/2 of existing pipeline ball-valve spheroid.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model structure plan view.

Embodiment

The utility model is described in further detail below in conjunction with concrete drawings and Examples.

As shown in the figure: small flow V mouth eccentric adjustment ball valve of the present utility model mainly is made of actuator 1, valve shaft 2, filler 3, valve body 4, clutch shaft bearing 5, second bearing 6, pad 7, valve seat bracing ring 8, trim ring 9, valve ball 10, valve seat 11, elastic component 12, the 3rd bearing 13, liquid entering hole 14, liquid outlet 15, valve pocket 16 and V-shaped groove 17 etc.

The utility model offers liquid entering hole 14 and liquid outlet 15 at valve body 4, liquid entering hole 14 is communicated with by valve pocket 16 with liquid outlet 15, in valve body 4, be provided with an end and stretch into tubular valve seat 11 in the valve pocket 16, described valve seat 11 is installed in by valve seat bracing ring 8 on the trim ring 9 in the valve body 4 at liquid outlet 15 places, in valve body 4, be rotatably connected to the valve shaft 2 that passes valve pocket 16, on the valve shaft 4 that is positioned at valve pocket 16, be fixed with the hemispheric valve ball 10 that cooperates with valve seat 11, on the valve shaft 4 that stretches out valve body 4 outsides, be provided with actuator 1, offer V-shaped groove 17 on the sphere wall body of valve ball 10, the edge extent of described V-shaped groove 17 is less than the valve opening edge of valve seat 11.

The axis of the center of described valve ball 10 and valve seat 11 is skew setting.The valve shaft 2 that is positioned at valve body 4 is enclosed between the upper and lower every the clutch shaft bearing 5 and second bearing 6 that are provided with, the bottom of valve shaft 2 is socketed in the 3rd bearing 13 that is fixed in the valve body 4, be provided with filler 3 outside the valve shaft 2 above clutch shaft bearing 5, valve shaft 2 links to each other with actuator 1 by filler 3.On the outer ring of valve seat 11, be provided with pad 7, be provided with elastic component 12 between valve seat 11 and the valve seat bracing ring 8.

Actuator 1 is installed in valve body 4 tops and is connected with the top of valve shaft 2, valve body 4 passes through filler 3 with valve shaft 2, clutch shaft bearing 5 is connected with second bearing 6, valve ball 10 is for offering the hemisphere type member of V-shaped groove 17, valve ball 10 is in valve body 4, the top of valve ball 10 links to each other with valve shaft 2, bearing 13 in bottom and the valve body 4 is connected, valve ball 10 right sides and valve seat 11 connect and compose sealing pair, valve seat 11 is connected with valve ball 10 usefulness trim rings 9, the sealing of trim ring 9 can regulate valve seats 11 and valve ball 10, the axis of the center of valve ball 10 and valve seat 11 is skew setting, i.e. valve ball 10 center line B and valve body 4 center line A skew.

Claims

1, a kind of small flow V mouth eccentric adjustment ball valve, be included in liquid entering hole (14) and liquid outlet (15) that valve body (4) is offered, liquid entering hole (14) is communicated with by valve pocket (16) with liquid outlet (15), in valve body (4), be provided with an end and stretch into tubular valve seat (11) in the valve pocket (16), described valve seat (11) is installed on the trim ring (9) in the valve body (4) that liquid outlet (15) locates by valve seat bracing ring (8), in valve body (4), be rotatably connected to the valve shaft (2) that passes valve pocket (16), on the valve shaft that is positioned at valve pocket (16) (4), be fixed with the hemispheric valve ball (10) that cooperates with valve seat (11), on the valve shaft (4) that stretches out valve body (4) outside, be provided with actuator (1), it is characterized in that: offer V-shaped groove (17) on the sphere wall body of valve ball (10), the edge extent of described V-shaped groove (17) is less than the valve opening edge of valve seat (11).

2, small flow V mouth eccentric adjustment ball valve as claimed in claim 1 is characterized in that: the axis of the center of described valve ball (10) and valve seat (11) is skew setting.

3, small flow V mouth eccentric adjustment ball valve as claimed in claim 1 is characterized in that: be provided with elastic component (12) between valve seat (11) and the valve seat bracing ring (8).