The invention discloses a constant pressure spherical check valve, comprising a valve body, a cylindrical valve core, a spring, a spherical guide plate, side valve, gasket, characterized in that the side with the left end of the valve body is connected with the right end of the valve body, valve body side are arranged at the left end of guide plate are respectively provided with a gasket between the guide plate and the valve body and the valve body side, guide plate is arranged in the spherical cylinder valve, the spherical cylinder and the valve spool middle formation sealing surface, spherical cylindrical valve core is provided with a guide rod, and the guide rod three ladder, a ladder spherical cylinder valve and spherical cylindrical valve core three steps and at the same time guide plate contact guide, compression spring is arranged between the spherical and cylindrical valve core guide plate, central spherical cylinder valve to open a channel through the constant pressure, constant pressure spherical valve core is arranged in the channel, the right end is provided with a ball valve Back pressure spring. In the open channel constant pressure spherical valve according to the invention, the front and rear spherical cylindrical valve core pressure equal to eliminate the pressure pulsation, good sealing performance, spherical cylinder valve back and forth without vibration, long service life, can be widely used in the water pump outlet of cold water and hot water, industrial and domestic sewage pipe network.
【技术实现步骤摘要】
一种压力恒定的球面止回阀
本专利技术涉及一种止回阀,更具体的说,他涉及一种压力恒定的球面止回阀。
技术介绍
止回阀是流体控制工程的基本元件,它通过制止流体逆流,起到确定流体流动方向、保护其它流体机械以及管线安全的作用,其广泛用于石油、冶金、化工、电力、建筑、热力、水处理等行业。普通球面止回阀由于开启过程及全开时流体产生压力脉动,以致阀芯来回振动,造成阀芯与阀体的损坏,影响阀门的使用寿命及性能。
技术实现思路
为了解决以上的技术问题,本专利技术提供一种压力恒定的球面止回阀。为实现上述目的,本专利技术所采用的技术方案如下:一种压力恒定的球面止回阀,包括阀体、球面柱体阀芯、弹簧、导流板、侧阀体、垫片,其特征在于:所述侧阀体左端与阀体右端连接,侧阀体左端设置有导流板,所述导流板与阀体和侧阀体之间分别装有垫片,导流板内装有球面柱体阀芯,所述球面柱体阀芯与阀体中部形成密封面,球面柱体阀芯上设置有导向杆,且导向杆成三级阶梯状,球面柱体阀芯一级阶梯和球面柱体阀芯三级阶梯同时与导流板接触导向,球面柱体阀芯与导流板之间装有压缩弹簧,球面柱体阀芯中部开有贯通的恒压通道,所述恒压通道内设有球形阀芯,所述球形阀芯右端设有背压弹簧。所述阀体与侧阀体之间采用螺栓和螺母连接。所述垫圈材料为柔性石墨。通过上述技术方案,本专利技术的有益效果是:本专利技术利用恒压通道内球形阀芯的开启,使球面柱体阀芯前后压力相等,来消除压力脉动,密封性能好,球面柱体阀芯无来回振动,阀门寿命长,可广泛应用于冷水、热水、工业及生活污水等管网的水泵出口。附图说明图1为本专利技术的压力恒定的球面止回阀的结构示意图。图中所示 ...
【技术保护点】
一种压力恒定的球面止回阀,包括阀体、球面柱体阀芯、弹簧、导流板、侧阀体、垫片,其特征在于:所述侧阀体左端与阀体右端连接,侧阀体左端设置有导流板,所述导流板与阀体和侧阀体之间分别装有垫片,导流板内装有球面柱体阀芯,所述球面柱体阀芯与阀体中部形成密封面,球面柱体阀芯上设置有导向杆,且导向杆成三级阶梯状,球面柱体阀芯一级阶梯和球面柱体阀芯三级阶梯同时与导流板接触导向,球面柱体阀芯与导流板之间装有压缩弹簧,球面柱体阀芯中部开有贯通的恒压通道,所述恒压通道内设有球形阀芯,所述球形阀芯右端设有背压弹簧。
【技术特征摘要】
1.一种压力恒定的球面止回阀,包括阀体、球面柱体阀芯、弹簧、导流板、侧阀体、垫片,其特征在于:所述侧阀体左端与阀体右端连接,侧阀体左端设置有导流板,所述导流板与阀体和侧阀体之间分别装有垫片,导流板内装有球面柱体阀芯,所述球面柱体阀芯与阀体中部形成密封面,球面柱体阀芯上设置有导向杆,且导向杆成三级阶梯状,球面柱体阀芯一级阶梯和球面柱体阀...
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