The invention discloses a piston and butterfly spring combined self-sealing valve, which mainly comprises a guide pipe, a piston, a butterfly spring, an oil cylinder, a support, a valve stem, a valve shell, a valve core and a valve seat. A valve seat is arranged in the valve shell, and a water inlet is connected with a water outlet through a central hole on the valve seat, and a valve core matching the opening and closing is arranged on the center hole. The upper end of the valve core is connected with the valve stem, the valve stem is connected with the piston through the valve shell and the support, the oil cylinder and the valve shell are connected and fixed through the support, the top of the valve stem passes through the piston and extends into the guide pipe, the guide pipe is provided with a butterfly spring outside the guide pipe, and the butterfly spring is arranged in the oil cylinder, so that the butterfly spring has a guide pipe inside the guide pipe for guiding protection. The beneficial effects of the invention are as follows: the invention is suitable for High-pressure Bypass pipelines and other occasions in power plants; the needle valve core is adopted to ensure the safety and effectiveness of the sealing structure; the valve stroke is limited by the stroke switch, and the valve body is not damaged; the combined driving system of the piston and the butterfly spring provides a greater stable load to make the seal more reliable.
【技术实现步骤摘要】
一种活塞和蝶簧联合自密封型阀门
本专利技术涉及阀门领域,具体涉及一种活塞和蝶簧联合自密封型阀门。
技术介绍
电站高压旁通管路等场合需要一种能够提供可靠密封,行程可控,性能稳定的阀进行管路开闭控制,传统的阀结构设计老旧,寿命短,稳定性差,阀的载荷小,不能很好适应工作环境。
技术实现思路
本专利技术的目的在于克服现有技术存在的不足,而提供一种活塞和蝶簧联合自密封型阀门。本专利技术的目的是通过如下技术方案来完成的:这种活塞和蝶簧联合自密封型阀门,主要包括导向管、活塞、蝶簧、油缸、支座、阀杆、阀壳、阀芯和阀座,阀壳内设置有阀座,进水口通过阀座上的中心孔与出水口相连通,该中心孔上设有与其配合开闭的阀芯;阀芯上端连接阀杆,阀杆穿过阀壳和支座并伸入油缸内与活塞相连接,油缸和阀壳通过支座连接固定,阀杆顶端穿过活塞并伸入导向管内,导向管外设置有蝶簧,蝶簧设置在油缸内,使得蝶簧内有导向管进行导向保护,蝶簧外缘由油缸的内壁进行导向保护,蝶簧下端与活塞相抵触使能作用到活塞上。作为优选,所述阀芯为针型阀芯,活塞与蝶簧联合,且蝶簧使用内外导向定位。更进一步的,针型阀的行程由行程开关限制,针形阀结 ...
【技术保护点】
1.一种活塞和蝶簧联合自密封型阀门,其特征在于:主要包括导向管(1)、活塞(2)、蝶簧(3)、油缸(4)、支座(5)、阀杆(6)、阀壳(7)、阀芯(8)和阀座(9),阀壳(7)内设置有阀座(9),进水口(10)通过阀座(9)上的中心孔与出水口(11)相连通,该中心孔上设有与其配合开闭的阀芯(8);阀芯(8)上端连接阀杆(6),阀杆(6)穿过阀壳(7)和支座(5)并伸入油缸(4)内与活塞(2)相连接,油缸(4)和阀壳(7)通过支座(5)连接固定,阀杆(6)顶端穿过活塞(2)并伸入导向管(1)内,导向管(1)外设置有蝶簧(3),蝶簧(3)设置在油缸(4)内,使得蝶簧(3)内有导 ...
【技术特征摘要】
1.一种活塞和蝶簧联合自密封型阀门,其特征在于:主要包括导向管(1)、活塞(2)、蝶簧(3)、油缸(4)、支座(5)、阀杆(6)、阀壳(7)、阀芯(8)和阀座(9),阀壳(7)内设置有阀座(9),进水口(10)通过阀座(9)上的中心孔与出水口(11)相连通,该中心孔上设有与其配合开闭的阀芯(8);阀芯(8)上端连接阀杆(6),阀杆(6)穿过阀壳(7)和支座(5)并伸入油缸(4)内与活塞(2)相连接,油缸(4)和阀壳(7)通过支座(5)连接固定,阀杆(6)顶端穿过活塞(2)并伸入导向管(1...
【专利技术属性】
技术研发人员:徐文峰,刘新爱,郑先云,
申请(专利权)人:杭州福朗机电科技有限公司,
类型:发明
国别省市:浙江,33
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