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在氨制冷系统里有许多的贮液器,如中间冷却器、氨液分离器、低压循环贮液桶等。这些容器的液位正常与否对确保整个制冷系统的安全运行,起着十分重要的作用。UQK—40型浮球液位控制器是目前氨制冷系统中应用较多的一种液位自控元件,它由发送器和信号器组成,内有一个双稳态开关电路(电气原理图见《冷库制冷技术》766页),只要与电磁阀配合使用,就能实现对贮液器液位的双位调节。本文介绍三例采用 UQK—40型浮球液位控制器(以下简称为控制器)的立式循环贮液桶的液位控制线路,它们都是根据控制器本身具有的浮球“向上浮上液位动作向下降
In the ammonia refrigeration system, there are many reservoirs, such as the intercooler, ammonia separator, low pressure circulating liquid storage barrel. The normal level of these containers to ensure the safe operation of the entire refrigeration system plays a very important role. UQK-40-type float level controller is currently used in ammonia refrigeration system more of a level of self-control components, which consists of a transmitter and annunciator, which has a bistable switch circuit (see the electrical schematic “ Cold Storage Technology ”page 766), as long as with the solenoid valve used in conjunction, you can achieve double the liquid level regulator. This article describes three cases using UQK-40 Float Level Controller (hereinafter referred to as the controller) of the vertical circulating liquid tank level control circuit, which are based on the controller itself has the float "up floating liquid Bit action to decline