The utility model relates to a new cut-off valve, including a valve body, a stem, a stem nut, a anti transfer plate, a stuffing cover, a corrugated packing, a sleeve, a seat and a graphite gasket. The valve body is equipped with an inverted T three way cavity, the stem is inserted into the vertical cavity and passes through the stem nut, the anti rotating plate, the cover under the stuffing, and the corrugated packing. The valve seat of the hollow rotary body is detachable at the bottom of the vertical cavity. The winding graphite gasket is located between the valve seat and the vertical cavity; the bottom of the stem has a valve disc and the valve disc presses the seat to block the transverse cavity; the outer wall of the stem nut is connected to the opening at the vertical cavity of the valve body and the squeezing wave under the stuffing is covered under the packing. The fillers seal the vertical ends of the vertical channel with wave packing to prevent the water in the transverse channel from entering the vertical cavity. The utility model can reduce the probability of overlaying defects and the possibility of residual welding residue remaining in the valve body compared with the common body welding cut-off valve body, and the sealing effect is very considerable.
【技术实现步骤摘要】
一种新型截止阀
本技术属于截止阀领域,具体涉及一种新型截止阀。
技术介绍
对于市面上常见的截止阀,本体堆焊结构加工时,焊渣较多,并且附着在中腔上,很难清理甚至无法清理。在阀门安装后,由于管道介质长期的冲刷,焊渣脱落进入介质中,很容易刮伤密封面,甚至导致阀门无法关闭,对阀门和管道都有很大的不良影响。
技术实现思路
本技术针对上述问题,提供一种具有良好的耐磨、抗冲刷、抗擦伤能力的新型截止阀。本技术提供的一种新型截止阀,包括阀体、阀杆、阀杆螺母、防转板、填料下压盖、波形填料、套筒、阀座和石墨垫片;阀体内设有倒T型的三通腔道,阀杆插入垂直腔道并依次穿过阀杆螺母、防转板、填料下压盖、波形填料和套筒;中空回转体的阀座可拆卸式设于垂直腔道的底部,缠绕式的石墨垫片位于阀座与垂直腔道之间;阀杆的底端设有阀瓣,阀瓣压住阀座能阻断横向腔道;阀杆的顶端设有手轮,阀杆螺母的外壁与阀体垂直腔道的开口处连接,防转板用于防止阀杆打滑打转,填料下压盖挤压波形填料使波形填料封住垂直腔道的下端以阻止横向腔道内的水进入垂直腔道。作为本技术的进一步优化,垂直腔道的底部为阶梯状,阀座为与垂直腔道底部形状对应的阶梯轴状。作为本技术的进一步优化,阀座为20Cr13材料,阀座的密封面用STL材料堆焊。本技术的一种新型截止阀,阀座为可拆卸式,可直接在阀座上堆焊后再进行安装,可减少堆焊缺陷的概率以及相对于常见本体焊截止阀阀体堆焊后焊渣残留在阀体的可能。此外,在阀座可拆卸的基础上采用填料下压盖压波形填料,波形填料压套筒,套筒压阀座的方式来进行密封,能使密封的效果非常可观。附图说明图1是本新型截止阀剖切示意图;图2是图1 ...
【技术保护点】
1.一种新型截止阀,其特征在于,包括阀体、阀杆、阀杆螺母、防转板、填料下压盖、波形填料、套筒、阀座和石墨垫片;阀体内设有倒T型的三通腔道,阀杆插入垂直腔道并依次穿过阀杆螺母、防转板、填料下压盖、波形填料和套筒;中空回转体的阀座可拆卸式设于垂直腔道的底部,缠绕式的石墨垫片位于阀座与垂直腔道之间;阀杆的底端设有阀瓣,阀瓣压住阀座能阻断横向腔道;阀杆的顶端设有手轮,阀杆螺母的外壁与阀体垂直腔道的开口处连接,防转板用于防止阀杆打滑打转,填料下压盖挤压波形填料使波形填料封住垂直腔道的下端以阻止横向腔道内的水进入垂直腔道。
【技术特征摘要】
1.一种新型截止阀,其特征在于,包括阀体、阀杆、阀杆螺母、防转板、填料下压盖、波形填料、套筒、阀座和石墨垫片;阀体内设有倒T型的三通腔道,阀杆插入垂直腔道并依次穿过阀杆螺母、防转板、填料下压盖、波形填料和套筒;中空回转体的阀座可拆卸式设于垂直腔道的底部,缠绕式的石墨垫片位于阀座与垂直腔道之间;阀杆的底端设有阀瓣,阀瓣压住阀座能阻断横向腔道;阀杆的顶端设有手轮,阀杆...
【专利技术属性】
技术研发人员:徐星,邱世杰,
申请(专利权)人:武汉永泰安阀门有限公司,
类型:新型
国别省市:湖北,42
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