The utility model relates to a multi membrane chamber self-propelled actuator, which comprises a lower membrane cover, an upper membrane cover, a membrane cover connecting plate, a connecting rod, a lower membrane, an upper membrane, a pressure measuring tube, a pressure gauge, and a shutter. A membrane cover connecting plate is arranged between the lower membrane cover and the upper membrane cover, a connecting rod is arranged in the middle of the membrane cover connecting plate, a lower membrane is arranged between the lower membrane cover and the membrane cover connecting plate and is sleeved on the connecting rod, and the membrane cover connecting plate and the upper membrane cover connecting plate are arranged The upper diaphragm is sleeved on the connecting rod between the diaphragm cover, the connecting rod between the upper diaphragm and the lower diaphragm is provided with a shaft sleeve, the upper diaphragm and the lower diaphragm divide the inner part of the lower diaphragm cover, the upper diaphragm cover and the diaphragm cover connecting plate into three closed chambers, the diaphragm cover connecting plate is provided with a ferrule joint, the pressure pipe is connected with the ferrule joint, and the pressure pipe is provided with a pressure gauge and a shutter. The utility model has the advantages of reliable sealing, medium leakage prevention and environmental protection. After the diaphragm is broken, the pressure gauge on the pressure pipe shows the pressure, and prompt the inspector for maintenance in time.
【技术实现步骤摘要】
一种多膜室自力式执行机构
本技术涉及自力式执行机构,特别涉及一种多膜室自力式执行机构。
技术介绍
普通的直接作用式自力式压力调节阀只有一个膜室。若管道内为可燃气体或有毒气体等不允许外漏的介质,如果该阀的膜片老化或者损坏,则介质会泄漏到大气之中,造成污染。且无检测装置,巡检人员难以发现泄漏。
技术实现思路
本技术所要解决的技术问题是提供一种多膜室自力式执行机构,解决因膜片损坏导致介质泄漏问题,并可及时提示人员膜片损坏。为实现上述目的,本技术采用以下技术方案实现:一种多膜室自力式执行机构,包括下膜盖、上膜盖、膜盖接盘、连接杆、下膜片、上膜片、测压管、压力表、开闭器,下膜盖和上膜盖之间设有膜盖接盘,膜盖接盘中部设有连接杆,下膜盖与膜盖接盘之间设有下膜片穿套在连接杆上,膜盖接盘与上膜盖之间设有上膜片穿套在连接杆上,上膜片和下膜片之间的连接杆上设有轴套,上膜片和下膜片将下膜盖、上膜盖、膜盖接盘内部分成三个密闭的腔室,膜盖接盘上设有卡套接头,测压管连接在卡套接头上,测压管上设有压力表、开闭器。所述的连接杆连接在阀杆上。所述的上膜片和下膜片的上下分别设有膜片压板和膜片顶盘。所述的上膜盖上连接阀体取压管。所述的下膜盖上设有大气连通孔。与现有的技术相比,本技术的有益效果是:1.本技术密封可靠,在取压膜室的膜片损坏发生泄漏时,介质则漏到中间膜室中,而不是直接泄漏到大气中,达到了环保的目的。中间膜室承压后测压管上的压力表显示读数,及时提示巡检人员维修。还可 ...
【技术保护点】
1.一种多膜室自力式执行机构,其特征在于,包括下膜盖、上膜盖、膜盖接盘、连接杆、下膜片、上膜片、测压管、压力表、开闭器,下膜盖和上膜盖之间设有膜盖接盘,膜盖接盘中部设有连接杆,下膜盖与膜盖接盘之间设有下膜片穿套在连接杆上,膜盖接盘与上膜盖之间设有上膜片穿套在连接杆上,上膜片和下膜片之间的连接杆上设有轴套,上膜片和下膜片将下膜盖、上膜盖、膜盖接盘内部分成三个密闭的腔室,膜盖接盘上设有卡套接头,测压管连接在卡套接头上,测压管上设有压力表、开闭器。/n
【技术特征摘要】
1.一种多膜室自力式执行机构,其特征在于,包括下膜盖、上膜盖、膜盖接盘、连接杆、下膜片、上膜片、测压管、压力表、开闭器,下膜盖和上膜盖之间设有膜盖接盘,膜盖接盘中部设有连接杆,下膜盖与膜盖接盘之间设有下膜片穿套在连接杆上,膜盖接盘与上膜盖之间设有上膜片穿套在连接杆上,上膜片和下膜片之间的连接杆上设有轴套,上膜片和下膜片将下膜盖、上膜盖、膜盖接盘内部分成三个密闭的腔室,膜盖接盘上设有卡套接头,测压管连接在卡套接头上,测压管上设有压力表、开闭器。
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【专利技术属性】
技术研发人员:张瀚霆,骆芳,袁志昊,任建峰,王崎峰,
申请(专利权)人:鞍山拜尔自控有限公司,
类型:新型
国别省市:辽宁;21
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