Glasses valve and valve base thereof
A glasses valve and valve seat technology, which is applied to sliding valves, valve devices, engine components, etc., can solve the problems of gas leakage due to poor sealing of the valve plate of the glasses valve, loose closing of the butterfly valve, and stuck.
Active Publication Date: 2013-07-24
CHENGDU RUIKELIN ENG TECH
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Problems solved by technology
However, when the cut-off method of butterfly valve and glasses valve is applied in the blast furnace gas dry dust removal system, the butterfly valve is still not closed tightly or stuck, dusty gas and dust enter the moving parts of the glasses valve and get stuck, and the glasses valve valve Problems such as leaking gas due to lax sealing of plates
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[0058] Such as Figures 1 to 3 The shown glasses valve includes: a housing 1, a first pipeline 2 and a second pipeline 3 for forming the flow path of the glasses valve are installed in the housing 1, the outlet of the first pipeline 2 is connected to the second pipeline 3 between the inlets to form a gap for the passage of the valve plate 4; the valve plate 4, the surface of the valve plate 4 has a surface for the first pipeline 2 between the outlet and the entrance of the second pipeline 3 respectively to achieve conduction And the closed hole surface 4a and solid surface 4b, and at least one layer of sealing ring 401 arranged along the outer edge of said hole surface 4a and solid surface 4b respectively is installed on the both sides surfaces of this valve plate 4; Drive mechanism, the valve plate 4 is installed on the housing 1 through the valve plate guide drive mechanism and can be selectively positioned between the outlet of the first pipeline 2 and the inlet of the seco...
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The invention discloses a glasses valve and a valve base thereof. Dust can be prevented from entering the matching surface between a valve plate and the valve base and in the valve base by the glasses valve and the valve base thereof to certain degree, so that the adaptability of the glasses valve to dust-containing gas is improved. The valve base comprises a sealing ring plate which is matched with a sealing ring in an extruding and sealing manner on the surface of one side of the glasses valve plate, wherein an exhausting device is arranged on the inner side of the sealing ring plate on the valve base; an input end of the exhausting device is connected with an air inlet interface on a glasses valve shell through an air inlet pipe; an output end of the exhausting device is connected with a vent which is formed in the sealing ring plate and leads air to the matching surface between the sealing ring plate and the valve plate; and the vent is positioned in the outer side of the sealing ring on the innermost layer. As a specific structure of the exhausting device in the glasses valve base, the exhausting device comprises an annular charging box body arranged on the inner wall of the valve base, and the sealing ring plate forms one side wall of the annular charging box body.
Description
technical field [0001] The invention relates to a spectacle valve and a valve seat thereof. Background technique [0002] According to the "Gas Safety Regulations for Industrial Enterprises (GB6222-2005)", the glasses valve (that is, the plug valve) is a relatively reliable partition device, which is widely used in various gas medium process pipelines. In recent years, considering energy saving, emission reduction and environmental protection, the blast furnace gas purification process of the blast furnace smelting system is based on the relatively mature wet purification process such as the Shuangwen purification process, the Tavan purification process, and the Bischoff purification process. It has gradually developed into dry blast furnace gas purification processes such as electrostatic precipitator and bag filter, and the glasses valve, as a gas cut-off device, has also begun to be widely used in various fully dry blast furnace gas dust collector process pipelines. Neve...
Claims
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Login to View More IPC IPC(8): F16K3/20F16K3/30F16K3/316
Inventor 谭险峰
Owner CHENGDU RUIKELIN ENG TECH