换热器 ，专用于冷却时的工作（WORK）液。 The TBI type compact air (AIR) heat exchanger produced in Germany (Produce) is dedicated to the working fluid during cooling. Shell-and-tube heat exchangers are also called column-and-tube heat exchangers. It consists of shell, heat transfer tube bundle, tube sheet, baffle and tube box. The shell is mostly cylindrical, and a tube bundle is installed inside, and the two ends of the tube bundle are fixed on the tube plate. There are two kinds of hot and cold fluids for heat exchange, one is flowing inside the tube, called the tube-side fluid; the other is flowing outside the tube, called the shell-side fluid. The heat exchange unit is composed of heat exchanger, temperature control valve group, trap valve circulating pump, electric control cabinet, base, pipeline, valve, instrument and so on. Temperature control valve, remote communication control, etc., thus forming a complete heat exchange station.