双截断耐磨闸阀制造技术

本发明专利技术公开了一种双截断耐磨闸阀，本闸阀的阀盖设于阀体顶面，阀体设有贯通的带有密封面的前、后阀腔，支架设于阀盖顶面，前、后驱动油缸设于支架顶面，前、后阀杆穿入阀盖并且顶端连接前、后驱动油缸的活塞杆，前阀杆底端连接前闸板，前闸板位于前阀腔并且抵靠密封面，连接板两端分别铰接后阀杆底端和后闸板，后闸板位于后阀腔并且一面抵靠密封面，后闸板的另一面开有斜面槽，限位销设于阀体的侧壁并且抵靠后闸板的斜面槽。本闸阀可有效提高在液‑固两相流介质当中的耐磨性能，消除气蚀，提高阀门的关断能力，确保在管路中的长期有效运行，并显著延长使用寿命。

Double truncated wear-resistant gate valve

The invention discloses a double-truncated wear-resisting gate valve. The valve cover of the gate valve is arranged on the top surface of the valve body, the valve body is provided with the front and rear valve chambers with the sealing surface, the support is arranged on the top surface of the valve cover, the front and rear driving oil cylinders are arranged on the top surface of the support, the front and rear valve rods are penetrated into the valve cover and the top is connected with the piston rods of the front and rear driving oil cylinders. The bottom end of the stem is connected with the front gate, the front gate is located in the front valve chamber and against the sealing surface, the two ends of the connecting plate are hinged respectively to the bottom end of the rear stem and the rear gate, the rear gate is located in the back valve chamber and one side is against the sealing surface, the other side of the back gate is provided with a slope groove, and the limit pin is located on the side wall of the valve body and against the slope groove of the rear gate. The valve can effectively improve the wear resistance of the liquid-solid two-phase flow medium, eliminate cavitation, improve the valve shutoff ability, ensure long-term effective operation in the pipeline, and significantly extend the service life.

【技术实现步骤摘要】
双截断耐磨闸阀
本专利技术涉及一种双截断耐磨闸阀。
技术介绍
在工业领域有很多液固两相流介质管路，例如高炉冲渣管路、煤浆管路、污水管路等等。这些管路中介质由于有固体颗粒的存在，导致管路阀门要么关不严，要么因冲刷剧烈而失去密封性。因此此类管路上的阀门密封副一般是选择硬度较高的合金材料，即便如此，在颗粒高速冲刷和研磨下密封面很快便会失效，加之阀门在启闭瞬间流体产生的气蚀强烈，阀门寿命很短。因此提高该类管路阀门的耐磨性能和使用寿命是一个亟待解决的难题。
技术实现思路
本专利技术所要解决的技术问题是提供一种双截断耐磨闸阀，本闸阀可有效提高在液-固两相流介质当中的耐磨性能，消除气蚀，提高阀门的关断能力，确保在管路中的长期有效运行，并显著延长使用寿命。为解决上述技术问题，本专利技术双截断耐磨闸阀包括阀体和阀盖，所述阀盖设于所述阀体顶面，本闸阀还包括前闸板、后闸板、前阀杆、后阀杆、前驱动油缸、后驱动油缸、连接板、限位销和支架，所述阀体设有贯通的前阀腔和后阀腔，所述前阀腔的后端面和后阀腔的前端面为密封面，所述支架设于所述阀盖顶面，所述前驱动油缸和后驱动油缸分别设于所述支架顶面，所述前阀杆穿入所述阀盖并且本文档来自技高网...

【技术保护点】
1.一种双截断耐磨闸阀，包括阀体和阀盖，所述阀盖设于所述阀体顶面，其特征在于：还包括前闸板、后闸板、前阀杆、后阀杆、前驱动油缸、后驱动油缸、连接板、限位销和支架，所述阀体设有贯通的前阀腔和后阀腔，所述前阀腔的后端面和后阀腔的前端面为密封面，所述支架设于所述阀盖顶面，所述前驱动油缸和后驱动油缸分别设于所述支架顶面，所述前阀杆穿入所述阀盖并且顶端连接所述前驱动油缸的活塞杆、底端连接所述前闸板，所述前闸板位于所述前阀腔并且抵靠所述前阀腔的密封面，所述后阀杆穿入所述阀盖并且顶端连接所述后驱动油缸的活塞杆，所述连接板两端分别铰接所述后阀杆底端和后闸板，所述后闸板位于所述后阀腔并且一面抵靠所述后阀腔的密封...

【技术特征摘要】
1.一种双截断耐磨闸阀，包括阀体和阀盖，所述阀盖设于所述阀体顶面，其特征在于：还包括前闸板、后闸板、前阀杆、后阀杆、前驱动油缸、后驱动油缸、连接板、限位销和支架，所述阀体设有贯通的前阀腔和后阀腔，所述前阀腔的后端面和后阀腔的前端面为密封面，所述支架设于所述阀盖顶面，所述前驱动油缸和后驱动油缸分别设于所述支架顶面，所述前阀杆穿入所述阀盖并且顶端连接所述前驱动油缸的活塞杆、底端连接所述前闸板，所述前闸板位于所述前阀腔并且抵靠所述前阀腔的密封面，所述后阀杆穿入所述阀盖并且顶端连接所述后驱动油缸的活塞杆，所述连接板两...

【专利技术属性】
技术研发人员：陈铁军，
申请(专利权)人：凯泰阀门集团有限公司，
类型：发明
国别省市：上海,31