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Single-disk valve

A single-disc, valve-disc technology, used in sliding valves, valve details, valve devices, etc., can solve the problems of material accumulation, stuck, erosion, etc., to achieve the effect of improving service life, reducing action friction, and long service life

Active Publication Date: 2013-06-26
BEIJING AEROSPACE PROPULSION INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a pneumatic conveying system and a single disc valve for similar working conditions, which can effectively solve the problems of material accumulation, jamming and erosion in the pneumatic conveying system and similar working conditions

Method used

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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] like Figure 1~4 As shown, a single disc valve includes an inlet valve body 1, an outlet valve body 2, a valve stem assembly 3 and a valve disc 8, wherein the inlet valve body 1 is a cylindrical structure with flanges at the upper and lower ends, and the upper end There are several through holes uniformly opened along the circumference of the flange, the axis of the lower end flange is not consistent with the axis of the inlet valve body 1 cylinder, and a cylindrical through hole structure parallel to the inlet valve body 1 cylinder is opened on the lower end flange The valve stem hole; the outlet valve body 2 is a funnel-shaped structure with flanges at the upper and lower ends. The lower end flange has the same structure as the cylinder of the inlet valve body 1 and the upper end flange, and is on the same axis; the valve st...

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Abstract

The invention relates to the technical field of switching valves used for pneumatic conveying systems, and in particular discloses a single-disk valve which is sealed reversely. The inlet valve body of the single-disk valve is in a cylindrical structure of which the upper end and the lower end are provided with flange disks; a valve rod hole is formed in the flange disk at the lower end of the inlet valve body; the outlet valve body of the single-disk valve is in a funnel-shaped structure of which the upper end and the lower end are provided with flange disks; the flange disk at the upper endof the outlet valve body is matched with the flange disk at the lower end of the inlet valve body; a valve disk is in an inverted conical disk structure of which the edge is a sharp edge; and a valverod assembly passes through the valve rod hole of the inlet valve body and is arranged between the inlet valve body and the outlet valve body so that the valve rod assembly can drive the valve disk to open or close a channel in the lower end surface of the cylinder of the inlet valve body. In the single-disk valve, the influence on the action of a valve caused by the accumulation and the slag-bonding of materials can be eliminated by a funnel-shaped valve cavity; simultaneously, the single-disk valve is simple in structure and convenient to maintain, and has the characteristics of lighter weight, lower cost and longer service life compared with other material cutout valves such as sealing ball valves and the like in the same specification, hardness and density; and a plurality of single-disk valves can be connected in series or are installed and used by exchanging with other ball valves.

Description

technical field [0001] The invention belongs to the technical field of on-off valves for pneumatic conveying systems, and in particular relates to a reverse-sealed single disc valve. Background technique [0002] Due to its excellent characteristics such as self-cleaning, self-grinding and self-compensation, the disc valve with double disc structure has been widely used in polysilicon and other industries. The process of polysilicon industry generally requires the valve to be two-way sealed, and the processing medium is mainly silicon powder. Silica fume has good fluidity and is not easy to agglomerate. The use effect and life of the disc valve are far better than the hard seal ball valve. [0003] However, in pneumatic conveying systems such as coal chemical industry and power plants and similar working conditions, the downstream pressure is high when the valve is closed, and reverse sealing is required. The medium to be processed is coal powder, coal ash, etc. Although ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K3/06F16K3/30F16K3/316F16K41/02F16K31/12F16K27/04
Inventor 郭玉生李楚林丁英仁刘金贤
Owner BEIJING AEROSPACE PROPULSION INST
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