Slab Gate Valves for Dilute Phase Pneumatic Conveying
A flat gate valve, pneumatic conveying technology, applied in the direction of sliding valves, valve devices, engine components, etc., to achieve the effect of enhancing the sealing performance
Active Publication Date: 2017-05-03
ZHEJIANG SCI-TECH UNIV
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- Description
- Claims
- Application Information
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Problems solved by technology
[0004] To overcome the defects of the flat gate valve in the existing dilute-phase pneumatic conveying, the purpose of the present invention is to provide a flat gate valve for dilute-phase pneumatic conveying, reduce the wear of the groove of the flat gate valve, and improve the service life of the gate valve
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[0015] The present invention will be further described below in conjunction with drawings and embodiments.
[0016] Such as figure 1 , figure 2 As shown, the present invention includes a valve body 1, a gate plate 5, a valve stem 6, a flange 7, a screw 8, a valve cover 9, an "O" ring 10, a guide sleeve 11, a top cover 12, a hand wheel 13 and a valve Rod nut 14; valve body 1 is equipped with gate plate 5, the upper end of valve body 1 and the lower end of valve cover 9 are connected by screw 8 through flange 7, the upper end of valve cover 9 and the lower end of top cover 12 are also connected by screws, and top cover 12 is equipped with Guide sleeve 11, one end of the valve stem 6 is connected with the gate plate 5 through the valve stem nut 14, the other end of the valve stem 6 passes through the guide sleeve 11 and extends out of the top cover 12, and turning the hand wheel 13 drives the valve stem on the valve stem 6. The nut 14 moves the gate plate 5 at the bottom of th...
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The invention discloses a flat gate valve used for dilute phase pneumatic conveying. There is a gate inside, and the upper end of the valve body is equipped with a bonnet and a top cover in turn. The top cover is equipped with a guide sleeve. One end of the valve stem is connected to the gate through a stem nut, and the other end of the valve stem extends out of the top cover through the guide sleeve. In addition, turning the handwheel drives the stem nut on the stem to move the gate plate at the bottom of the stem up and down to open and close the gate valve. In the present invention, a spring is placed in the groove at the bottom of the valve body, and a plate is placed on the spring. There are retaining grooves on both sides of the upper part of the plate, respectively, and welding plates of the same size are symmetrically welded on the left and right sides of the opening of the groove at the bottom of the valve body. The width and length of the groove are the same as the width and length of the welded plate. It effectively prevents the deposition of solid phase particles at the bottom of the groove of the flat gate valve in dilute phase pneumatic conveying, and the abrasion of the wall surface of the valve body at the bottom of the groove of the flat gate valve. The invention can meet the requirements in the fields of gas transportation with a small amount of impurities, dilute phase pneumatic transportation and the like.
Description
technical field [0001] The invention relates to a flat gate valve, in particular to a flat gate valve used for dilute phase pneumatic conveying. Background technique [0002] The gate valve is generally used to open or close the medium flow of the pipeline. The opening and closing part is a gate, and the movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be used for full opening and full closing, not for regulation and throttling. Among them, the slab gate valve is a sliding valve whose closing parts are parallel gates. The closing part can be a single ram or a double ram with a stretching mechanism in between. The advantages of the flat gate valve are simple shape, short structure length, small resistance, unrestricted medium flow direction, and no disturbance; the disadvantage is that it is easy to cause erosion and scratches between the sealing surfaces, and it is difficult to maintain, especially when the bottom of th...
Claims
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IPC IPC(8): F16K3/30F16K3/02
CPCF16K3/02F16K3/30
Inventor 朱祖超林哲马光飞崔宝玲徐洪光
Owner ZHEJIANG SCI-TECH UNIV