Unlock instant, AI-driven research and patent intelligence for your innovation.

IGCC unit air separation automatic load changing method

A variable load, air separation technology, applied in the field of coal chemical industry, can solve the problems of long air separation control process, many control variables, misoperation, etc., and achieve the effect of improving the automation level, reducing the operating burden, and improving the control accuracy.

Inactive Publication Date: 2021-06-11
HUANENG TIANJIN COAL GASIFICATION POWER CO LTD
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the long control process of air separation, there are many variables to be controlled, which undoubtedly increases the burden on the operating personnel, and the manual control accuracy is insufficient, and there is a risk of misoperation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • IGCC unit air separation automatic load changing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.

[0022] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0023] Please refer to figure 1 , the embodiment of the present invention provides a kind of method for IGCC unit air separation automatic load change, comprises the steps:

[0024] S11 Automatic control of air separation oxygen production. The cascade control system calculates the air separation ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an IGCC unit air separation automatic load changing method. The method comprises the following steps that the air separation oxygen production amount is automatically controlled; oxygen pressure is automatically controlled; the oxygen purity of an air cooling tower is automatically controlled; a three-section air supply flow of a supercharger is automatically controlled; and the front-machine temperature of an expansion machine is automatically controlled. According to the method, the operation burden of operators can be relieved, misoperation is reduced, the air separation automation level is improved, and the stability of control parameters is improved.

Description

technical field [0001] The invention relates to the technical field of coal chemical industry, in particular to a method for automatic load changing of air separation of IGCC units. Background technique [0002] The variable load operation of the air separation unit of the IGCC unit is completely manually controlled by humans. When the unit receives an instruction to increase the load, the oxygen consumption increases and the oxygen pressure of the air separation unit decreases. Manually increase the speed of the oxygen pump by 0.1% each time to keep the oxygen pressure as constant as possible. Due to the increase of liquid oxygen, the temperature before the expander and the oxygen purity of the air-cooling tower decrease. Manually slightly open the inlet valve of the supercharger to maintain a constant temperature before the expander. Manually slightly open the high-pressure air throttle valve to maintain the oxygen intake of the air-cooling tower. Keep a balance with the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F25J3/04
CPCF25J3/04545F25J3/04769
Inventor 刘飘秦建明祁海鹏艾云涛王相平李志强梅昆仑赵剑袁帅周广利孙国平董良王瑞超吴楠宋石磊钱金葵王赞惠李帅崔念琦尼君王绍博
Owner HUANENG TIANJIN COAL GASIFICATION POWER CO LTD