换热器是热流体的部分热量传递给冷流体的设备，又称为热交换器。列管式换热器由壳体、管束、管板、折流挡板和封头组成。换热器中流体的相对流向一般有顺流和逆流两种。顺流时，入口处两流体的温差大，并沿传热表面逐渐减小。逆流时，沿传热表两流体的温差分布较均匀

Heat exchanger is a device that transfers part of heat from hot fluid to cold fluid, also known as heat exchanger. The tubular heat exchanger consists of shell, tube bundle, tube plate, baffle and head. The relative flow direction of fluid in heat exchanger generally has two kinds: downstream and countercurrent. The temperature difference between the two fluids at the inlet is the largest and decreases along the heat transfer surface. The temperature difference distribution of two fluids along the heat transfer meter is more uniform when countercurrent occurs.

◆大工作压力：管程150bar，壳程150bar

Maximum working pressure: 150bar in pipe and 150bar in shell

◆允许温差：热流体平均温度与冷流体平均温度差≤70℃

Permissible temperature difference: the difference between the average temperature of hot and cold fluids is less than 70℃

◆材质：304/304L, 316/316L, 2205, 2507, S31254, C276，钛材，坦材等

Material: 304/304L, 316/316L, 2205, 2507, S31254, C276, Titanium, Tan, etc

◆抛光要求：MP或EP，Ra≤0.4μm

Polishing requirements: MP or EP, Ra≤0.4μm

◆可实现CIP在线清洗和SIP在线灭菌

CIP online cleaning and SIP online sterilization can be realized

◆符合GMPFDA要求

It meets the requirements of GMP/FDA