Deslagging gate valve

A gate valve and valve body technology, used in the field of short-distance slag removal gate valves, can solve the problems of frontal wear of the medium, long connection structure of the gate valve, and poor wear-resistant life of the valve.

Inactive Publication Date: 2007-09-12
曹剑钢
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] DXZ73Y type slag removal gate valve is a key device for opening and closing dust removal and slag discharge in water treatment, coal mines, paper mills, and power systems. It has two series of wedge-shaped single plate and parallel single plate. Most of the valve bodies are connected by flanges. The connection structure is very long, and it is not allowed to install gate valves with a long connection structure in some slag removal systems, and the weight of the piping system is heavy.
In addition, the diameter of the inlet and outlet of the runner is the same, the inner cavity of the runner is easily worn by the front of the medium, and the overall wear life of the valve is poor

Method used

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  • Deslagging gate valve

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Embodiment Construction

[0007] As shown in Figure 1, this embodiment includes a valve body (1), a gate plate (2), a valve stem (4), and a valve cover (5), wherein the valve body (1) is in the shape of a "butterfly valve body" to allow the gate valve to flow The channel length is greatly shortened; the channel (3) in the valve body is trumpet-shaped, and the trumpet-shaped inlet and outlet are used to create an oblique angle between the flow direction and the center of the fluid, avoiding the inner cavity of the channel from being worn by the front of the medium, and improving the overall wear life of the valve. There is a packing seal (6) between the valve stem (4) and the bonnet (5), and a pressure plate butterfly spring (7) is arranged in the stuffing box of the packing seal (6), forming a sealing and automatic compensation elastic structure, so that the valve can be used in the whole Apply compression force to the packing during use to ensure that the upper seal does not leak.

[0008] In summary,...

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Abstract

The invention relates a technology of the valve especially a kind of short-range slag-off valve. It includes a valve body, a shutter, a valve handle, a valve cap and between the valve handle and the valve cap installs filling material seal and the valve body with the shape of 'butterfly valve body'. The purpose of it is that in orders to design a kind of short-range and installment space with few requirements slag-off valve. Comparing with the modern technology it has the merits as follows: the total of valve with high wearing life and the line piping with light weight and saving material and well seal performance and so on.

Description

technical field [0001] The invention relates to valve technology, in particular to a short-distance slag removal gate valve. Background technique [0002] DXZ73Y type slag removal gate valve is a key device for opening and closing dust removal and slag discharge in water treatment, coal mines, paper mills, and power systems. It has two series of wedge-shaped single plate and parallel single plate. Most of the valve bodies are connected by flanges. The connection structure of the valve is very long, and it is not allowed to install a gate valve with a long connection structure in some slag removal systems, and the pipe system is heavy. In addition, the diameters of the inlet and outlet of the flow channel are the same, the inner cavity of the flow channel is easily worn by the front of the medium, and the overall wear life of the valve is poor. Contents of the invention [0003] The object of the present invention is to design a slag removal gate valve with short distance ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K3/02F16K27/04F16K41/02
Inventor 曹剑钢
Owner 曹剑钢
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