A self operated liquid control device, which comprises a shell, a valve port, a valve core, a floating body and a transfusion pipe, which is characterized in that the a shell (1) is arranged in the core protection cover (5, 11, 20, 25), a core protecting cover structure with guidance (3, 9, 21, 22), nursing the core is arranged in the valve cover (4, 18, 24), a guide and guidance structure matched with the valve (2, 10, 23), shell (1) outside the valve (8) is arranged above the core protective cover (5, 11), a core protective cover structure (3, guidance 9, 21), supporting core cover is arranged in the float valve (17), floating guide and guide structure matched with the valve (2, 10), a core protecting cover and the valve port, liquid through the gap between the shell (6), which passes through the valve spool (8) rope chain ( 7), and the floating spool linkage device (13) and the floating body (14) is connected, or B, the shell (1) is arranged in the core protection cover (5, 11, 20, 25), a core protecting cover structure with guidance (3, 9, 21, 22), a core protecting cover is arranged in the valve core (4, 18, 24), the valve core is provided with a guide structure and guidance made matched (2, 10, 23), a core protecting cover and the valve port (8), shell (1) between the liquid through the gap (6), (4, 18, 24 valve) through the valve port (8) the linkage device (13) and the floating body (14) is connected, or C, the shell (1), (8) is arranged above the valve core protective cover (5, 11), a core protecting cover structure with guidance (3, 9, 21), is arranged in the float valve core protection cover (17), a floating valve core is provided with a guide and guidance structure matched (2, 10), a core protecting cover and the valve port, liquid through the gap between the shell (6), or D (1) is arranged in the shell and core protective cover (5, 11, 20), supporting core guidance cover structure (3, 9, 21), a core protecting cover is arranged in the valve (4, 18), a guide and guidance structure matched with the valve (2, 10), a core protecting cover and the valve port (8), a liquid through the gap (6), and the floating hole guide through the bottom of the housing (14).
【技术实现步骤摘要】
本技术属于自力式物位仪表,用于动态自动控制储液容器中的液体液位。
技术介绍
早期液体液位靠人工目视监测,如玻璃管、量尺或浮子滑轮重锤组合等,不足之处是技术方案为非自动化技术,不适应现代化大工业自动化的需要。现有液体液位多数利用电测技术来监测,先进的有超声物位计、微波物位计、电导法、电容法、光纤监测法等,不足之处是必须用电和能源驱动,罐旁仪表与控制室必须用电缆或光缆连接,仅起耳目监测作用,没有执行器功能,工艺复杂、维修保养麻烦、成本高,不适应易燃、易爆危险品储液环境的安全要求,关键时有失灵,稍有疏忽或故障,就会导致储液超限溢冒事故,造成能源浪费,环境污染,引发意外火灾和人身伤亡等重大安全事故。在CN2194009Y中公开了一种动态大流量液体液位自动控制装置,它的目的是提供一种动态大流量液体液位自动阀门,构成包括阀体、阀门和浮子,其不足之处是阀门5,6在漏盖7上,导致阀位处于不稳定状态,重复使用过程中,经液流的冲击及其它物理因素的干扰,造成阀门扁移而发生误动作,工作不可靠;截流时产生严重的水击现象,损害管路设备;阀口液体喷溅,用于易燃、易爆危险性油品时,易产生静电,导致意外火灾,使用不安全。
技术实现思路
本专利技术的目的是提供一种更加灵敏准确、方便可靠、无需用电、不耗能、防静电、防水击、本质安全、维修量少的自力式、集监测与执行于一体化的液体液位自动化控制仪表,且提供相关信号检拾联锁结构,实现远传联网、自动关停泵阀,在储液容器动态储液过程中,防范超越安全限位形成事故,特别对易燃、易爆、毒腐性的液体危险品,有效防范超限溢冒形成的能源浪费和环境污染,及由此引发的火灾 ...
【技术保护点】
【技术特征摘要】
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