METHOD AND DEVICE FOR CONTROLLING HOT AIR FAN OF SEPARATION COLUMN

Title:

METHOD AND DEVICE FOR CONTROLLING HOT AIR FAN OF SEPARATION COLUMN

Document Type and Number:

WIPO Patent Application WO/2021/077530

Kind Code:

A1

Abstract:

A method for controlling a hot air fan of a separation column, for controlling the rotation speed of the hot air fan of the separation column. The control method comprises the following steps: when a separation column is in normal operation, acquiring the current production heat transfer coefficient for a heating stage of the separation column; acquiring a target end control temperature for the heating stage of the separation column; and obtaining, on the basis of the production heat transfer coefficient and the target end control temperature, the rotation speed of a hot air fan.

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Inventors:

LIU YANFEI (CN)
ZHOU HAOYU (CN)
LI JUNJIE (CN)
LIU CHANGQI (CN)

Application Number:

PCT/CN2019/120852

Publication Date:

April 29, 2021

Filing Date:

November 26, 2019

Export Citation:

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Assignee:

ZHONGYE CHANGTIAN INT ENG CO (CN)
HUNAN ZHONGYE CHANGTIAN ENERGY CONSERVATIONAL PROTECTION TECH CO LTD (CN)

International Classes:

B01D53/02

Foreign References:

CN110354630A	2019-10-22
CN108662906A	2018-10-16
CN104824818A	2015-08-12
EP0357954A1	1990-03-14

Attorney, Agent or Firm:

CHINABLE IP (CN)

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