Zhenhai Petrochemical Jianan Engineering Co., Ltd.

Xianan Zhang

Jianliang Wang

Xingmiao Hu

Jiang Tao

Lijun Wu

Yu Wang

Lijiang Liu

Jiaoyue Cui

Li Wang

Chenyang Huang

Huili Ma

Hongliang Ren

Chenchen Ma

Yongmiao Shen

Kuier Zhou

A depolymerization system with a tube-wound heat exchanger () comprises a heat exchange device for heating a material, having a material output; a gas-liquid separation device () having an inlet and a gas output, connected to the material output of the heat exchange device; and a depolymerization device () connected to the gas output of the gas-liquid separation device (); the heat exchange device comprises at least one tube-wound heat exchanger (). The depolymerization rate is greatly improved and the service period of the whole depolymerization system can be greatly improved.

Depolymerization system having coil-wound heat exchanger

An atmospheric-vacuum heat exchange system with a winding-tube heat exchanger, has a first and second heat exchanging group; a primary distillation tower () or flash tower; an atmospheric furnace (); an atmospheric tower (); a vacuum furnace () and a vacuum tower (); each winding-tube heat exchanger has a shell-pass cylinder (), a first and second shell-pass connecting tube (), a first and second tube plate (), a plurality of first and second tube box (), a plurality of heat exchange tubes () spirally wounded with multiple spiral tube layers; the number of the first and second tube box () are respectively N, and each spiral tube layer has N group(s) of the wounded heat exchange tubes (), N is a natural number greater than or equal to 1. The loss of heat exchanger is reduced.

Atmospheric-vacuum heat exchange system having coil-wound heat exchangers, and heat exchange process

Growing community of inventors

Ningbo, China

Xianan Zhang