The utility model relates to a valve, in particular to a double sealed rotary material valve. Including the upper shell and the lower shell, the upper shell is provided with a cylinder support plate, cylinder, air bag, a sealing ring, a rotating shaft, a connecting rod and a connecting piece and a supporting arm, a connecting rod by a connecting block is connected with a cylinder, both ends of the shaft are respectively connected with a connecting rod and a supporting arm, the supporting arm is provided with a spring cylinder and valve connection in the spring cylinder is provided with a compression spring, wherein the upper valve plate and compression spring on the blind hole contact, and lower spring seat connection; which is characterized in that the air bag, the air outlet and a sealing ring is arranged between the upper shell and the lower end of the valve plate. The beneficial effect of the utility model is closed in place in the valve plate, the valve plate and the sealing ring to form a sealing surface and the valve plate is pressed against the top contact form two sealing surface of the valve plate and the airbag, airbag and the sealing ring to form double seal valve is not closed tight, Casey, not the ash the characteristics of.
【技术实现步骤摘要】
本实用涉及一种阀门特别涉及一种火力发电厂、冶金、医药、化工等行业中的各类粉尘、颗粒等介质输送的双密封旋转式物料阀门。
技术介绍
双密封旋转式物料阀门适用于热电厂的干灰输送系统仓栗进料门,也可用于矿山、冶金、医药、化工等各类易磨损的粉尘、颗粒等介质的管道上作启闭之用。现有旋转式物料阀门的缺陷,主要存在当阀门关闭时阀板上方的介质压力大于压缩弹簧的压力阀板会下移,导致出现阀腔泄露,封闭不严密的问题。
技术实现思路
本技术的目的在于,提供一种双密封旋转式物料阀门,以解决上述的技术问题。为实现上述目的,本技术所采用的技术方案是:—种双密封旋转式物料阀门,包括上壳体和下壳体,所述上壳体上设有气缸支撑板、气缸、气囊、密封环、转轴、连杆、连接块及支臂,连杆通过连接块与气缸相连,所述气缸与气缸支撑板连接,所述转轴的两端分别与连杆和支臂连接,所述转轴的两端设有密封压盖,所述密封压盖的内部设有密封圈;所述支臂的一端设有阀板,所述支臂上设有弹簧筒,所述弹簧筒内设有压缩弹簧,所述压缩弹簧的上部与阀板上的盲孔接触,下部与弹簧座连接,通过调节螺钉顶触挤压弹簧座从而对压缩弹簧进行压力调节;所述阀板的下端设有盲孔,所述下壳体通过螺栓与上壳体固定连接,并通过螺母锁紧,其特征在于:所述阀板与密封环和气囊形成双重密封。进一步地说:所述上壳体的下端面与阀板之间设有密封环,气囊和气囊充气口,所述密封环分布在上壳体的下端面,围绕介质进口分布一周,所述气囊分布在上壳体下端面的气囊槽内与阀板保持一定的间隙,环绕密封环分布一周。有益效果:与现有技术相比,本技术的有益效果是利用气囊和密封环的双重密封,在 ...
【技术保护点】
一种双密封旋转式物料阀门,包括上壳体(1)和下壳体(11),所述上壳体(1)上设有气缸支撑板(23)、气缸(22)、气囊(4)、密封环(15)、转轴(16)、连杆(20)、连接块(21)及支臂(14),连杆(20)通过连接块(21)与气缸(22)相连,所述气缸(22)与气缸支撑板(23)连接,所述转轴(16)的两端分别与连杆(20)和支臂(14)连接,所述转轴(16)的两端设有密封压盖(18),所述密封压盖(18)的内部设有密封圈(17);所述支臂(14)的一端设有阀板(7),所述支臂(14)上设有弹簧筒(12),所述弹簧筒(12)内设有压缩弹簧(8),所述压缩弹簧(8)的上部与阀板(7)上的盲孔(13)接触,下部与弹簧座(9)连接,通过调节螺钉(10)顶触挤压弹簧座(9)从而对压缩弹簧(8)进行压力调节;所述阀板(7)的下端设有盲孔(13),所述下壳体(11)通过螺栓(3)与上壳体(1)固定连接,并通过螺母(6)锁紧,其特征在于:所述上壳体(1)的下端面与阀板(7)之间设有气囊(4)、气囊充气口(2)和密封环(15)。
【技术特征摘要】
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