一种补偿密封闸阀

Abstract

本实用新型公开了一种补偿密封闸阀，其技术方案要点是包括阀体、相对竖直平面倾斜的闸板、带动闸板直线移动的阀杆和能与闸板形成密封的阀座，所述闸板包括两个分别位于阀杆两侧的半闸板，所述阀杆的端部处设置有两个相对阀杆轴线倾斜且对称的滑槽，两个所述半闸板均设置有贯穿相应滑槽并能沿滑槽长度方向移动的滑动件，通过两个滑动件相对所在滑槽来回直线移动使得两个半闸板相向或相离移动，解决了现有技术因磨损而容易产生泄漏的问题。

Claims

1. A compensating sealing gate valve, comprising a valve body (1), a gate (2) inclined relative to a vertical plane, a valve stem (3) for driving the gate (2) to move linearly, and a valve seat (4) capable of forming a seal with the gate (2), characterized in that: The gate (2) includes two half gates (21) located on both sides of the valve stem (3). The valve stem (3) has two symmetrical and inclined grooves (31) at its end. Both half gates (21) are provided with sliding members (22) that pass through the corresponding grooves (31) and can move along the length of the grooves (31). The two sliding members (22) move back and forth in a straight line relative to the grooves (31) so that the two half gates (21) move towards each other or away from each other.

2. A compensating seal gate valve according to claim 1, characterized in that: Both of the half gates (21) are covered with a soft elastic layer (5) that can form a soft seal with the corresponding valve seat (4).

3. A compensating seal gate valve according to claim 2, wherein: The elastic layer (5) includes an outer layer (51) that can fit with the valve seat (4) and an end layer (52) that is connected to one end of the outer layer (51) and covers the end face of the half gate (21). A gap groove (23) is provided on the facing surfaces of the two half gates (21). One end of the gap groove (23) distributed along the length direction of the valve stem (3) extends to the surface of the half gate (21) and is covered by the end layer (52). The end of the valve stem (3) is provided with a protruding ring (32) that can be inserted into the gap groove (23).

4. A compensating seal gate valve according to claim 3, wherein: The elastic layer (5) also includes an inner layer (53) connected to the outer layer (51) and located on the opposing surfaces of the two half-gates (21), one end of which extends into the gap groove (23).

5. A compensating-seal gate valve according to claim 1 or 2 or 3 or 4, characterized in that: The valve body (1) is equipped with a pressure gauge (6) for monitoring changes in medium pressure in the part used for discharging material.

6. A compensating-seal gate valve according to claim 1 or 2 or 3 or 4, characterized in that: The valve body (1) is equipped with a slag discharge device (7) for discharging residual media in the part for discharging material.

Images