Control system of jacket heating media of film evaporator of acrylic acid and acrylate device

• Main Authors: MA QINGGANG, HUANG CHUNCHAO, YANG SHUANG, ZHOU JIANGPEI, WEI LILIN, LI ZHIYUAN, BAI YUANFENG, WANG QIUHONG, ZHAO FENG, LIU JINQI, SUN WENSHENG, LI XINPING, LI XIANG, LIU LIJUAN, ZHENG DATONG, GONG CHUANZHI
• Format: Patent
• Language: Chinese; English
• Published: 18.07.2012
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The invention relates to an automatic control system, in particular to a control system of jacket heating media of a film evaporator of an acrylic acid and acrylate device. The control system is characterized in that the film evaporator is divided into three independent jacket heating cylinders, hot steam used is introduced from a pipe network outside a plant area, and pressure adjusting systems are arranged on steam pipelines accessing to the upper and middle jacket heating cylinders; a pressure regulating system is arranged on a steam pipeline accessing to the lower jacket heating cylinder; a temperature adjusting system is combined at the lower end of the film evaporator, a regulator of the temperature regulating system is a major regulator, the regulators of the pressure regulating systems are secondary regulators, and an output instrument number of the major regulator serves as the given instrument numbers of the secondary regulators. The control system has the beneficial effects of reducing the steam co