锅炉加热配料过程控制系统

模型HV-EXP4471

技术描述:

这个完整和全面装备的实验室试验台提供了从过程控制领域的许多可能的实验。它包含四个不同的控制回路与本地数字，工业控制器。此外，它还可以实现两个级联控制系统。为级联控制提供了进一步的控制器。控制器可以根据需要相互独立配置，可以单独或同时操作。它们都有串行接口。实验部分由一个封闭的水回路构成。水由1.1 kW离心泵通过管道系统从供水罐中泵出。该电路中包括一个气动驱动控制阀，可以改变流量，从而控制电路。液位可以在两个不同容量的不锈钢罐中控制。 For this purpose a bypass mounted on the tank feed is controlled by a further pneumatic valve. The two tanks can be connected together to change the characteristic of the control loop. An electronically adjustable 7.5 kW heater enables to heat the water as part of a temperature control system. During overheating, a siren and an alarm lamp will be activated. The system water in the circuit can be cooled by a heat exchanger. Fresh water from an external water supply is used as cooling liquid. The pressure control system uses external compressed air at one of the two tanks. The test stand is built using only industrial standard components to increase its relevance to practice. The support made of steel tubes is fitted with laboratory castors and can thus be easily moved around. Software for the process visualisation and Profibus card are available as an accessory.