CN2277470Y - Valve - Google Patents

Abstract

The utility model discloses a rotating valve used for conveying the fluid and the slurry in the industrial pipeline and equipment. The utility model comprises a valve rod, an end cover and a valve shell body. The work curved surface of a stopping body is smaller than the curved surface of a continuous cylinder in a semi-cylinder shape. When the valve is in the closing state, the work curved surface of the stopping body and the inner surface of the valve shell body do not form a gap. The sediment assembled on the inner surface of the valve shell body is scraped into a flowing path by the stopping body when the valve is opened. The utility model has the advantages of flexible opening and closing, simple structure, low manufacture cost, good sealing performance, wear resistance, etc.

Description

Valve

The utility model belongs to valve, especially for the rotating valve of conveyance fluid and slurry in industrial pipeline and the equipment.

The patent No. for " 93231643.3 " " valve " patent disclosure a kind of by body be the valve of column structure, its by body can be the garden post, also can be half Cylinder.The valve of this structure is in off position the time, the internal surface of staying interior a part of area of valve housing and valve housing by the working curved surface of body forms the gap, like this when slurry body is particularly carried the slurry that contains the solid granular material, consolidation settling thing in the gap, the Open valve difficulty.The processing technology more complicated by body of this valve, the manufacture cost height.

Main purpose of the present utility model is to provide a kind of valve, and its working curved surface by body is less than the continuous garden of half garden cylindricality curved surface of column, to overcome the deficiency of above-mentioned valve.

Next purpose of the utility model is to provide a kind of Sealing of above-mentioned valve.

Next purpose of the utility model is to provide wearing layer in a kind of runner of above-mentioned valve.

The utility model is achieved in that it has valve rod, end cap, valve housing, Sealing, and its improvements are that the working curved surface by body is less than half-cylindrical continuous cylinder curved surface.

Above-mentioned valve by body can be housing.

Above-mentioned valve can be to have runner by body, the formed cavity of runner is an incomplete garden column cavity, the curved surface of this cavity is with non-intersect by the working curved surface of body.

Above-mentioned valve can be the exradius that is slightly larger than Sealing by the length that the cross section of body and working curved surface by body intersect the arc that forms.

The Sealing of above-mentioned valve can be the elastic annular body with cavity.

Above-mentioned valve can be to be lined with the cast stone layer in the runner of valve.

Above-mentioned valve can be to be lined with ceramic layer in the runner of valve.

The utility model valve is in off position the time, can not form the gap with the internal surface of valve housing by the working curved surface of body, and the sediments that concentrates at the valve housing internal surface is cut off body and blows into runner when valve opening.It has that switch is flexible, simple in structure, low cost of manufacture and good seal performance and advantage such as wear-resisting.

Fig. 1: the plan view of valve.

The A-A sectional view of Fig. 2: Fig. 1.

Fig. 3: shell construction is by the plan view of body.

Fig. 4: Fig. 3 is by the plan view of body.

Fig. 5: plan view by body with runner.

Fig. 6: Fig. 5 is by the plan view of body.

Fig. 7: Sealing look up partial sectional view.

Fig. 8: the plan view of Sealing.

Accompanying drawing has provided two embodiments of the utility model.

With reference to accompanying drawing, in conjunction with the embodiments the utility model is described further.

Embodiment 1, Fig. 1, Fig. 2 has provided the concrete structure of present embodiment valve, it has valve rod 6, end cap 2, valve housing 1, Sealing 4, end body 3 as Fig. 3, shown in Figure 4, its working curved surface 7 is less than half-cylindrical continuous cylinder curved surface, the length that intersects the arc that forms by the cross section of body and working curved surface by body is slightly larger than the exradius of Sealing 4, by body is a shell construction, when valve in off position the time, be in solid line position among Fig. 2 by body, its working curved surface 7 can not form the gap with the valve housing internal surface, the sediments that concentrates at the valve housing internal surface is cut off body and blows into runner when valve opening, and Sealing 4 is as Fig. 7, shown in Figure 8, be an elastic annular body with cavity, wearing layer 5 is to be lined with the cast stone layer or to be lined with ceramic layer in the runner of valve.

Embodiment 2, the basic structure of present embodiment valve and embodiment's 1 valve basically identical, structure by body is different, Fig. 5, Fig. 6 have provided the concrete structure of this example by body, on body, has runner 8, the cavity of 8 shapes of runner is incomplete cylindrical cavities, and the curved surface 9 of this cavity is non-intersect with the working curved surface 7 by body.The present embodiment valve has identical advantage with embodiment's 1 valve.

Claims (7)

1, a kind of rotating valve that is used for industrial pipeline and equipment fluid and slurry conveying, it has valve rod, end cap, valve housing, Sealing, it is characterized in that the working curved surface by body is less than half-cylindrical continuous cylinder curved surface.

2, valve according to claim 1 is characterized in that said is housing by body.

3, valve according to claim 1 is characterized in that the said body that ends has runner, and the formed cavity of runner is an incomplete cylindrical cavity, and the curved surface of this cavity is non-intersect with the working curved surface by body.

4,, it is characterized in that being slightly larger than the exradius of Sealing by the length that the cross section of body and working curved surface by body intersect the arc that forms according to claim 2,3 described valves.

5, the described valve of root a tree name claim 4 is characterized in that Sealing is an elastic annular body with cavity.

6, valve according to claim 5 is characterized in that being lined with the cast stone layer in the runner of valve.

7, valve according to claim 5 is characterized in that being lined with ceramic layer in the runner of valve.

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