The utility model discloses a large-caliber high-pressure sealing gate valve, which comprises a screw rod, a valve body, a valve plate and a large-caliber valve chamber. The top of the screw rod is welded with a fixing block, the top thread of the fixing block is connected with a runner, the upper surface of the runner is welded with a handle, the outer wall of the top of the valve body is welded with a supporting block, and the bottom inner wall of the supporting block is fixed with a first sealing ring. The bottom outer wall of the threaded rod is fixed and welded in the inner ring of the bearing, the outer ring of the bearing is fixed and welded on the surface of the valve plate, the top outer wall of the valve plate is fixed and installed with a second sealing ring around it, and the outer surface of both sides of the valve plate is fixed and installed with a third sealing ring. The utility model effectively prevents the inner part of the valve body from being invaded by liquid by adding a second sealing ring around the top of the valve plate. Corrosion effectively slows down the oxidation speed of the valve body and increases its service life. A third sealing ring is added to the contact surface between the valve plate and the water pipe, which also prevents the liquid from overflowing.
【技术实现步骤摘要】
一种大口径高压密封闸阀
本技术涉及密封闸阀设备
,具体为一种大口径高压密封闸阀。
技术介绍
闸阀是用闸板作启闭件并沿阀座轴线垂直方向移动,以实现启闭动作的阀门。闸阀只能全开和全关,启闭件是闸板,运动方向与流体方向相垂直,方形工字闸阀两个密封面形成楔形、楔形角随阀门参数而异,通常为5°,介质温度不高时为2°52‘。改善闸阀的工艺性,弥补密封面角度在加工过程中产生的偏差,这种闸板叫做弹性闸板,闸阔的种类,按密封面配置可分为楔式闸板式闸阀和平行闸板式闸阀楔式闸板式闸阀又可分为单闸极式、双闸板式和弹性闸板式;平行闸板式闸阀可分为单闸板式和双闸板式。按阀杆的螺纹位置划分,可分为明杆闸阀和暗杆闸阀两种,本体采用高级球黑铸铁制成,重量较传统闸阀重量减轻约20%~30%,安装维修方便。但是,传统的闸阀在使用过程中存在一些弊端,比如:传统的闸阀,因为阀板的与管道的接触处,没有做到密封设置,从造成阀体内部进水,使阀体加快了氧化的速度,对闸阀的使用时间造成缩短的影响。
技术实现思路
本技术的目的在于提供一种大口径高压密封闸阀,以解决上述
技术介绍
中提出的问题。为实现上述目的,本技术提供如下技术方案:一种大口径高压密封闸阀,包括螺纹杆、阀体、阀板和大口径阀腔,所述螺纹杆顶部焊接有固定块,所述固定块顶部螺纹连接有转轮,所述转轮上表面一侧焊接有手柄,所述阀体顶部外壁焊接有支撑块,所述支撑块底部内壁固定安装有第一密封圈,所述螺纹杆底部外壁固定焊接在轴承内圈,所述轴承外圈固定焊接在阀板上表面,所述阀板顶部外壁四周固定安装有第二密封圈,所述阀板两侧外表面固定安装有第三密封圈。进一步的,所述转轮 ...
【技术保护点】
1.一种大口径高压密封闸阀,包括螺纹杆(6)、阀体(9)、阀板(13)和大口径阀腔(15);其特征在于:所述螺纹杆(6)顶部焊接有固定块(5),所述固定块(5)顶部螺纹连接有转轮(4),所述转轮(4)上表面一侧焊接有手柄(1),所述阀体(9)顶部外壁焊接有支撑块(7),所述支撑块(7)底部内壁固定安装有第一密封圈(8),所述螺纹杆(6)底部外壁固定焊接在轴承(12)内圈,所述轴承(12)外圈固定焊接在阀板(13)上表面,所述阀板(13)顶部外壁四周固定安装有第二密封圈(10),所述阀板(13)两侧外表面固定安装有第三密封圈(14)。
【技术特征摘要】
1.一种大口径高压密封闸阀,包括螺纹杆(6)、阀体(9)、阀板(13)和大口径阀腔(15);其特征在于:所述螺纹杆(6)顶部焊接有固定块(5),所述固定块(5)顶部螺纹连接有转轮(4),所述转轮(4)上表面一侧焊接有手柄(1),所述阀体(9)顶部外壁焊接有支撑块(7),所述支撑块(7)底部内壁固定安装有第一密封圈(8),所述螺纹杆(6)底部外壁固定焊接在轴承(12)内圈,所述轴承(12)外圈固定焊接在阀板(13)上表面,所述阀板(13)顶部外壁四周固定安装有第二密封圈(10),所述阀...
【专利技术属性】
技术研发人员:陈忠义,
申请(专利权)人:惠州宏利铸造有限公司,
类型:新型
国别省市:广东,44
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