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目前工业生产中用 DDZ 电动单元组合仪表和QDZ 气动单元组合仪表组成各种过程控制系统甚多,笔者通过生产实践谈一点对用好单元组合仪表调节系统的体会。1.重视安装质量(1)差压变送器是用得最多的现场仪表,脉冲管线及阀门要安装正确,对防渗和防热问题也要有足够重视,这样才能确保信号的传递正确无误。为方便维护,脉冲管线上的取压阀、三通阀、排污阀、管道及接头
At present, the industrial production with DDZ electric unit combination meter and QDZ pneumatic unit combination meter composed of a variety of process control system is very much, I talk about production practice point about the use of a good combination of unit meter adjustment system experience. 1. Pay attention to the installation quality (1) differential pressure transmitter is the most used field instruments, pulse lines and valves to be installed correctly, the seepage and heat problems have enough attention, so as to ensure that the signal is passed correctly . To facilitate the maintenance of the pulse pressure on the pipeline valve, three-way valve, drain valve, pipe and fittings