CN1834209A - Median automatic selection control method of powdered coal pressuring gasified oxygen stream - Google Patents
Median automatic selection control method of powdered coal pressuring gasified oxygen stream Download PDFInfo
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- CN1834209A CN1834209A CNA2006100436548A CN200610043654A CN1834209A CN 1834209 A CN1834209 A CN 1834209A CN A2006100436548 A CNA2006100436548 A CN A2006100436548A CN 200610043654 A CN200610043654 A CN 200610043654A CN 1834209 A CN1834209 A CN 1834209A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
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- Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
Abstract
This invention discloses a method for automatic choice control of oxygen flow medium number in powdered coal compression and gastification process, which comprises the steps of: (1) judging whether the flow number displayed on the measuring instrument A (FT-101A) is the oxygen flow medium number; (2) judging whether the flow number displayed on the measuring instrument B (FT-101B) is the oxygen flow medium number; and (3) judging whether the flow number displayed on the measuring instrument C (FT-101C) is the oxygen flow medium number. The method can ensure automatic choice control of the oxygen flow medium number through the flow numbers displayed on the three measuring instruments on the basis of stable and safe operation of the system. This invention can ensure an optimized combination of the oxygen, powdered coal and water steam introduced into the gastification furnace for combustion, thus can achieve an optimal combustion effect and ensure safety.
Description
Technical field
The present invention relates to a kind ofly in powdered coal pressuring gasified preparation synthesis gas process fine coal and oxygen are transported to vapourizing furnace in the certain flow ratio and carry out mixed firing and carry out the automatic control program method of design that chemical reaction produces synthetic gas, particularly a kind of powdered coal pressuring gasified oxygen flow intermediate value is selected control method automatically.
Background technology
In the gasification technology of coal high-efficiency, clean utilization, absolute predominances such as the air-flow bed coal-gasification technology is big with its scale, efficient is high, coal adaptability is strong, having represented the main flow of Coal Gasification Technology development, is the leading technology and the gordian technique of advanced person's polygenerations systeme, IGCC power generation system, ICL for Indirect Coal Liquefaction, bulk chemical preparation, hydrogen manufacturing and fuel cell in the world.The pressure gasification process of dry method fine coal charging has advantage and competitive power because of its Technological Economy.
In powdered coal pressuring gasified preparation synthesis gas process, accurately measure oxygen flow in the oxygen pipeline for guaranteeing security of system, three flow measurement instrument (FT-101A have been installed on oxygen pipeline, FT-101B, FT-101C) measure oxygen flow, in order to guarantee to guarantee under the situation of system safety operation, coal dust, oxygen, steam enters vapourizing furnace in the certain flow ratio and carries out mixed firing, just need carry out that precise monitoring obtains accurate data and according to processing requirement and coal dust to oxygen flow, other rate-of flows such as steam carry out reference calculating and carry out Flow-rate adjustment, make various media enter vapourizing furnace by best proportioning and carry out combustion reactions.
Summary of the invention
The purpose of this invention is to provide the control method that a kind of powdered coal pressuring gasified oxygen flow intermediate value can be selected automatically.Make system carry out intermediate value to three oxygen flow numerical value in real time automatically and select, read the oxygen flow intermediate value automatically in real time and carry out reference calculating.
In order to realize the foregoing invention purpose, a kind of powdered coal pressuring gasified oxygen flow of the present invention intermediate value is selected control method automatically, it is characterized in that: oxygen flow intermediate value select procedure is divided into three programsegments:
Programsegment one: judge whether oxygen flow metrical instrument A (FT-101A) flow number is the oxygen flow intermediate value;
Programsegment two: judge whether oxygen flow metrical instrument B (FT-101B) flow number is the oxygen flow intermediate value;
Programsegment three: judge whether oxygen flow metrical instrument C (FT-101C) flow number is the oxygen flow intermediate value;
First in order execution phase one when (1) oxygen flow intermediate value select procedure moves:
The first step: judge whether oxygen flow metrical instrument A (FT-101A) flow number is the intermediate value of three oxygen flow metrical instrument flow numbers:
Condition one: judge whether oxygen flow metrical instrument A (FT-101A) flow number 〉=oxygen flow metrical instrument B (FT-101B) flow number is true and whether oxygen flow metrical instrument A (FT-101A) flow number≤oxygen flow metrical instrument C (FT-101C) flow number is true;
Condition two: judge whether oxygen flow metrical instrument A (FT-101A) flow number 〉=oxygen flow metrical instrument C (FT-101C) flow number is true and whether oxygen flow metrical instrument A (FT-101A) flow number≤oxygen flow metrical instrument B (FT-101B) flow number is true;
1. it is true that above-mentioned condition one or condition two have arbitrary, and then oxygen flow intermediate value select procedure is the oxygen flow intermediate value according to comparing to determine oxygen flow metrical instrument A (FT-101A) flow number, and oxygen flow intermediate value select procedure program directly carried out for second step;
Second step: oxygen flow intermediate value select procedure is the oxygen flow intermediate value according to comparing to determine oxygen flow metrical instrument A (FT-101A) flow number, oxygen flow metrical instrument A (FT-101A) flow number is composed to oxygen flow FY-101, and system program is read the numerical value of oxygen flow FY-101 and is carried out reference calculating;
2. above-mentioned condition one or condition two are not true, illustrate that then oxygen flow metrical instrument A (FT-101A) flow number is not the intermediate value of three oxygen flow metrical instrument flow numbers, and execution phase two is in order removed in the commentaries on classics of oxygen flow intermediate value select procedure;
(2) programsegment one is false, oxygen flow intermediate value select procedure execution phase two:
The first step: judge whether oxygen flow metrical instrument B (FT-101B) flow number is the intermediate value of three oxygen flow metrical instrument flow numbers:
Condition one: judge whether oxygen flow metrical instrument B (FT-101B) flow number 〉=oxygen flow metrical instrument A (FT-101A) flow number is true and whether oxygen flow metrical instrument B (FT-101B) flow number≤oxygen flow metrical instrument C (FT-101C) flow number is true;
Condition two: judge whether oxygen flow metrical instrument B (FT-101B) flow number 〉=oxygen flow metrical instrument C (FT-101C) flow number is true and whether oxygen flow metrical instrument B (FT-101B) flow number≤oxygen flow metrical instrument A (FT-101A) flow number is true;
1. it is true that above-mentioned condition one or condition two have arbitrary, and then oxygen flow intermediate value select procedure is the oxygen flow intermediate value according to comparing to determine oxygen flow metrical instrument B (FT-101B) flow number, and oxygen flow intermediate value select procedure program directly carried out for second step;
Second step: oxygen flow intermediate value select procedure is the oxygen flow intermediate value according to comparing to determine oxygen flow metrical instrument B (FT-101B) flow number, oxygen flow metrical instrument B (FT-101B) flow number is composed to oxygen flow FY-101, and system program is read the numerical value of oxygen flow FY-101 and is carried out reference calculating;
2. above-mentioned condition one or condition two are not true, illustrate that then oxygen flow metrical instrument B (FT-101B) flow number is not the intermediate value of three oxygen flow metrical instrument flow numbers, and execution phase three is in order removed in the commentaries on classics of oxygen flow intermediate value select procedure;
(3) programsegment two is false, oxygen flow intermediate value select procedure execution phase three:
The first step: judge whether oxygen flow metrical instrument C (FT-101C) flow number is the intermediate value of three oxygen flow metrical instrument flow numbers:
Condition one: judge whether oxygen flow metrical instrument C (FT-101C) flow number 〉=oxygen flow metrical instrument A (FT-101A) flow number is true and whether oxygen flow metrical instrument C (FT-101C) flow number≤oxygen flow metrical instrument B (FT-101B) flow number is true;
Condition two: judge whether oxygen flow metrical instrument C (FT-101C) flow number 〉=oxygen flow metrical instrument B (FT-101B) flow number is true and whether oxygen flow metrical instrument C (FT-101C) flow number≤oxygen flow metrical instrument A (FT-101A) flow number is true;
1. it is true that above-mentioned condition one or condition two have arbitrary, and then oxygen flow intermediate value select procedure is the oxygen flow intermediate value according to comparing to determine oxygen flow metrical instrument C (FT-101C) flow number, and oxygen flow intermediate value select procedure program directly carried out for second step;
Second step: oxygen flow intermediate value select procedure is the oxygen flow intermediate value according to comparing to determine oxygen flow metrical instrument C (FT-101C) flow number, oxygen flow metrical instrument C (FT-101C) flow number is composed to oxygen flow FY-101, and system program is read the numerical value of oxygen flow FY-101 and is carried out reference calculating;
2. above-mentioned condition one or condition two are not true, illustrate that then oxygen flow metrical instrument C (FT-101C) flow number is not the intermediate value of three oxygen flow metrical instrument flow numbers, oxygen flow intermediate value select procedure changes and to go rerun routine section one to circulate once more to carry out.
The present invention is by the automatic control of oxygen flow intermediate value select procedure, making system in real time three oxygen flow metrical instrument flow numbers be carried out intermediate value automatically under the prerequisite of guaranteeing security of system steady running selects, read the oxygen flow intermediate value in real time and carry out reference calculating, make various media such as oxygen, coal dust, steam enter vapourizing furnace and carry out combustion reactions by best proportioning, thereby reach the best combustion effect, not only guarantee optimum gasification efficiency but also greatly reduced to consume to have saved cost, guaranteed security of system.
Description of drawings
Fig. 1 is existing powdered coal pressuring gasified vapourizing furnace process flow diagram.
Fig. 2 is a programsegment one of the present invention: oxygen flow intermediate value select procedure principle of design block diagram when oxygen flow metrical instrument A (FT-101A) flow number is the oxygen flow intermediate value.
Fig. 3 is a programsegment two of the present invention: oxygen flow intermediate value select procedure principle of design block diagram when oxygen flow metrical instrument B (FT-101B) flow number is the oxygen flow intermediate value.
Fig. 4 is a programsegment three of the present invention: oxygen flow intermediate value select procedure principle of design block diagram when oxygen flow metrical instrument C (FT-101C) flow number is the oxygen flow intermediate value.
In the accompanying drawing:
The explanation of instrument item
FT-101A oxygen flow metrical instrument A
FT-101B oxygen flow metrical instrument B
FT-101C oxygen flow metrical instrument C
FY-101 oxygen flow (intermediate variable)
FT-105A pulverized coal flow metrical instrument A
FT-105B pulverized coal flow metrical instrument B
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
The principle of the invention as shown in Figure 1, in powdered coal pressuring gasified preparation synthesis gas process, accurately measure oxygen flow in the oxygen pipeline for guaranteeing security of system, three flow measurement instrument (FT-101A have been installed on oxygen pipeline, FT-101B, FT-101C) measure oxygen flow, in order to guarantee to guarantee under the situation of system safety operation, coal dust, oxygen, steam enters vapourizing furnace in the certain flow ratio and carries out mixed firing, just need carry out that precise monitoring obtains accurate data and according to processing requirement and coal dust to oxygen flow, other rate-of flows such as steam carry out reference calculating and carry out Flow-rate adjustment, make various media enter vapourizing furnace by best proportioning and carry out combustion reactions.In order to obtain as far as possible oxygen flow accurately, eliminate measuring error to the full extent, three oxygen flow metrical instrument flow numbers are compared in system design according to processing requirement, remove a maximum value, remove a minimum value, only get intermediate value and carry out reference calculating as current oxygen flow.For this reason, in programdesign, worked out an oxygen flow intermediate value select procedure, made system carry out intermediate value to three oxygen flow numerical value in real time automatically and select, read the oxygen flow intermediate value automatically in real time and carry out reference calculating.
The present invention only gets the intermediate value of three oxygen flow instrument, does not relate to the pulverized coal flow instrument.
One, principle of design of the present invention.After oxygen system is set up flow, oxygen flow metrical instrument A (FT-101A), oxygen flow metrical instrument B (FT-101B), oxygen flow metrical instrument C (FT-101C) record this place's oxygen flow separately, oxygen flow intermediate value select procedure carries out real-time data acquisition and relatively calculating to the flow number of three oxygen flow metrical instruments automatically, remove a maximum value, remove a minimum value, only get intermediate value and carry out reference calculating as current oxygen flow:
1, oxygen flow metrical instrument A (FT-101A) flow number is the oxygen flow intermediate value: (referring to accompanying drawing 2)
1. if oxygen flow metrical instrument A (FT-101A) flow number 〉=oxygen flow metrical instrument B (FT-101B) flow number and oxygen flow metrical instrument A (FT-101A) flow number≤oxygen flow metrical instrument C (FT-101C) flow number, then oxygen flow metrical instrument A (FT-101A) flow number is the oxygen flow intermediate value, then system is composed oxygen flow metrical instrument A (FT-101A) flow number to oxygen flow FY-101 (intermediate variable) automatically, and system program is read the numerical value of oxygen flow FY-101 (intermediate variable) and carried out reference calculating.
2. if oxygen flow metrical instrument A (FT-101A) flow number 〉=oxygen flow metrical instrument C (FT-101C) flow number and oxygen flow metrical instrument A (FT-101A) flow number≤oxygen flow metrical instrument B (FT-101B) flow number, then oxygen flow metrical instrument A (FT-101A) flow number is the oxygen flow intermediate value, then system is composed oxygen flow metrical instrument A (FT-101A) flow number to oxygen flow FY-101 (intermediate variable) automatically, and system program is read the numerical value of oxygen flow FY-101 (intermediate variable) and carried out reference calculating.
2, oxygen flow metrical instrument B (FT-101B) flow number is the oxygen flow intermediate value: (referring to accompanying drawing 3)
1. if oxygen flow metrical instrument B (FT-101B) flow number 〉=oxygen flow metrical instrument A (FT-101A) flow number and oxygen flow metrical instrument B (FT-101B) flow number≤oxygen flow metrical instrument C (FT-101C) flow number, then oxygen flow metrical instrument B (FT-101B) flow number is the oxygen flow intermediate value, then system is composed oxygen flow metrical instrument B (FT-101B) flow number to oxygen flow FY-101 (intermediate variable) automatically, and system program is read the numerical value of oxygen flow FY-101 (intermediate variable) and carried out reference calculating.
2. if oxygen flow metrical instrument B (FT-101B) flow number 〉=oxygen flow metrical instrument C (FT-101C) flow number and oxygen flow metrical instrument B (FT-101B) flow number≤oxygen flow metrical instrument A (FT-101A) flow number, then oxygen flow metrical instrument B (FT-101B) flow number is the oxygen flow intermediate value, then system is composed oxygen flow metrical instrument B (FT-101B) flow number to oxygen flow FY-101 (intermediate variable) automatically, and system program is read the numerical value of oxygen flow FY-101 (intermediate variable) and carried out reference calculating.
3, oxygen flow metrical instrument C (FT-101C) flow number is the oxygen flow intermediate value: (referring to accompanying drawing 4)
1. if oxygen flow metrical instrument C (FT-101C) flow number 〉=oxygen flow metrical instrument A (FT-101A) flow number and oxygen flow metrical instrument C (FT-101C) flow number≤oxygen flow metrical instrument B (FT-101B) flow number, then oxygen flow metrical instrument C (FT-101C) flow number is the oxygen flow intermediate value, then system is composed oxygen flow metrical instrument C (FT-101C) flow number to oxygen flow FY-101 (intermediate variable) automatically, and system program is read the numerical value of oxygen flow FY-101 (intermediate variable) and carried out reference calculating.
2. if oxygen flowmete C (FT-101C) flow number 〉=oxygen flowmete B (FT-101B) flow number and oxygen flowmete C (FT-101C) flow number≤oxygen flow Table A (FT-101A) flow number, then oxygen flowmete C (FT-101C) flow number is the oxygen flow intermediate value, then system is composed oxygen flowmete C (FT-101C) flow number to oxygen flow FY-101 (intermediate variable) automatically, and system program is read the numerical value of oxygen flow FY-101 (intermediate variable) and carried out reference calculating.(accompanying drawing 4)
Two, technical scheme of the present invention.Carry out programdesign according to processing requirement, design the design of programming of programming logic block diagram:
After technology is set up oxygen flow, oxygen flow metrical instrument A (FT-101A), oxygen flow metrical instrument B (FT-101B), oxygen flow metrical instrument C (FT-101C) record this place's oxygen flow numerical value separately, and computer reads in oxygen flow intermediate value select procedure with three oxygen flow metrical instrument flow numbers and compares calculating:
According to process condition oxygen flow intermediate value select procedure is divided into three programsegments:
Programsegment one: judge whether oxygen flow metrical instrument A (FT-101A) flow number is oxygen flow intermediate value (referring to accompanying drawing 2)
Programsegment two: judge whether oxygen flow metrical instrument B (FT-101B) flow number is oxygen flow intermediate value (referring to accompanying drawing 3)
Programsegment three: judge whether oxygen flow metrical instrument C (FT-101C) flow number is oxygen flow intermediate value (referring to accompanying drawing 4)
First in order execution phase one (judging whether oxygen flow metrical instrument A (FT-101A) flow number is the oxygen flow intermediate value) when 1, oxygen flow intermediate value select procedure moves:
The first step: judge whether oxygen flow metrical instrument A (FT-101A) flow number is the intermediate value of three oxygen flow metrical instrument flow numbers:
Condition one: judge whether oxygen flow metrical instrument A (FT-101A) flow number 〉=oxygen flow metrical instrument B (FT-101B) flow number is whether true (ON) and oxygen flow metrical instrument A (FT-101A) flow number≤oxygen flow metrical instrument C (FT-101C) flow number is true (ON);
Condition two: judge whether oxygen flow metrical instrument A (FT-101A) flow number 〉=oxygen flow metrical instrument C (FT-101C) flow number is whether true (ON) and oxygen flow metrical instrument A (FT-101A) flow number≤oxygen flow metrical instrument B (FT-101B) flow number is true (ON);
1. above-mentioned condition one or condition two have arbitrary be true (ON), then oxygen flow intermediate value select procedure is the oxygen flow intermediate value according to comparing to determine oxygen flow metrical instrument A (FT-101A) flow number, and oxygen flow intermediate value select procedure program directly carried out for second step;
Second step: oxygen flow intermediate value select procedure is the oxygen flow intermediate value according to comparing to determine oxygen flow metrical instrument A (FT-101A) flow number, oxygen flow metrical instrument A (FT-101A) flow number is composed to oxygen flow FY-101 (intermediate variable), and system program is read the numerical value of oxygen flow FY-101 (intermediate variable) and is carried out reference calculating;
2. above-mentioned condition one or condition two are not true (OFF), illustrate that then oxygen flow metrical instrument A (FT-101A) flow number is not the intermediate value of three oxygen flow metrical instrument flow numbers, execution phase two (judging whether oxygen flow metrical instrument B (FT-101B) numerical value flow is the oxygen flow intermediate value) is in order removed in the commentaries on classics of oxygen flow intermediate value select procedure;
2, programsegment one is false, oxygen flow intermediate value select procedure execution phase two (judging whether oxygen flow metrical instrument B (FT-101B) numerical value flow is the oxygen flow intermediate value):
The first step: judge whether oxygen flow metrical instrument B (FT-101B) flow number is the intermediate value of three oxygen flow metrical instrument flow numbers:
Condition one: judge whether oxygen flow metrical instrument B (FT-101B) flow number 〉=oxygen flow metrical instrument A (FT-101A) flow number is whether true (ON) and oxygen flow metrical instrument B (FT-101B) flow number≤oxygen flow metrical instrument C (FT-101C) flow number is true (ON);
Condition two: judge whether oxygen flow metrical instrument B (FT-101B) flow number 〉=oxygen flow metrical instrument C (FT-101C) flow number is whether true (ON) and oxygen flow metrical instrument B (FT-101B) flow number≤oxygen flow metrical instrument A (FT-101A) flow number is true (ON);
1. above-mentioned condition one or condition two have arbitrary be true (ON), then oxygen flow intermediate value select procedure is the oxygen flow intermediate value according to comparing to determine oxygen flow metrical instrument B (FT-101B) flow number, and oxygen flow intermediate value select procedure program directly carried out for second step;
Second step: oxygen flow intermediate value select procedure is the oxygen flow intermediate value according to comparing to determine oxygen flow metrical instrument B (FT-101B) flow number, oxygen flow metrical instrument B (FT-101B) flow number is composed to oxygen flow FY-101 (intermediate variable), and system program is read the numerical value of oxygen flow FY-101 (intermediate variable) and is carried out reference calculating;
2. above-mentioned condition one or condition two are not true (OFF), illustrate that then oxygen flow metrical instrument B (FT-101B) flow number is not the intermediate value of three oxygen flow metrical instrument flow numbers, execution phase three (judging whether oxygen flow metrical instrument C (FT-101C) flow number is the oxygen flow intermediate value) is in order removed in the commentaries on classics of oxygen flow intermediate value select procedure;
3, programsegment two is false, oxygen flow intermediate value select procedure execution phase three (judging whether oxygen flow metrical instrument C (FT-101C) flow number is the oxygen flow intermediate value):
The first step: judge whether oxygen flow metrical instrument C (FT-101C) flow number is the intermediate value of three oxygen flow metrical instrument flow numbers:
Condition one: judge whether oxygen flow metrical instrument C (FT-101C) flow number 〉=oxygen flow metrical instrument A (FT-101A) flow number is whether true (ON) and oxygen flow metrical instrument C (FT-101C) flow number≤oxygen flow metrical instrument B (FT-101B) flow number is true (ON);
Condition two: judge whether oxygen flow metrical instrument C (FT-101C) flow number 〉=oxygen flow metrical instrument B (FT-101B) flow number is whether true (ON) and oxygen flow metrical instrument C (FT-101C) flow number≤oxygen flow metrical instrument A (FT-101A) flow number is true (ON);
1. above-mentioned condition one or condition two have arbitrary be true (ON), then oxygen flow intermediate value select procedure is the oxygen flow intermediate value according to comparing to determine oxygen flow metrical instrument C (FT-101C) flow number, and oxygen flow intermediate value select procedure program directly carried out for second step;
Second step: oxygen flow intermediate value select procedure is the oxygen flow intermediate value according to comparing to determine oxygen flow metrical instrument C (FT-101C) flow number, oxygen flow metrical instrument C (FT-101C) flow number is composed to oxygen flow FY-101 (intermediate variable), and system program is read the numerical value of oxygen flow FY-101 (intermediate variable) and is carried out reference calculating;
2. above-mentioned condition one or condition two are not true (OFF), illustrate that then oxygen flow metrical instrument C (FT-101C) flow number is not the intermediate value of three oxygen flow metrical instrument flow numbers, oxygen flow intermediate value select procedure changes and to go rerun routine section one to circulate once more to carry out;
More than be the program process of oxygen flow intermediate value select procedure, no matter when have one to satisfy condition certainly in programsegment one, programsegment two, three or three programsegments of programsegment, select at that time oxygen flow intermediate value and remove to carry out reference and calculate.
Claims (1)
1, a kind of powdered coal pressuring gasified oxygen flow intermediate value is selected control method automatically, it is characterized in that: oxygen flow intermediate value select procedure is divided into three programsegments:
Programsegment one: judge whether oxygen flow metrical instrument A (FT-101A) flow number is the oxygen flow intermediate value;
Programsegment two: judge whether oxygen flow metrical instrument B (FT-101B) flow number is the oxygen flow intermediate value;
Programsegment three: judge whether oxygen flow metrical instrument C (FT-101C) flow number is the oxygen flow intermediate value;
First in order execution phase one when (1) oxygen flow intermediate value select procedure moves:
The first step: judge whether oxygen flow metrical instrument A (FT-101A) flow number is the intermediate value of three oxygen flow metrical instrument flow numbers:
Condition one: judge whether oxygen flow metrical instrument A (FT-101A) flow number 〉=oxygen flow metrical instrument B (FT-101B) flow number is true and whether oxygen flow metrical instrument A (FT-101A) flow number≤oxygen flow metrical instrument C (FT-101C) flow number is true;
Condition two: judge whether oxygen flow metrical instrument A (FT-101A) flow number 〉=oxygen flow metrical instrument C (FT-101C) flow number is true and whether oxygen flow metrical instrument A (FT-101A) flow number≤oxygen flow metrical instrument B (FT-101B) flow number is true;
1. it is true that above-mentioned condition one or condition two have arbitrary, and then oxygen flow intermediate value select procedure is the oxygen flow intermediate value according to comparing to determine oxygen flow metrical instrument A (FT-101A) flow number, and oxygen flow intermediate value select procedure program directly carried out for second step;
Second step: oxygen flow intermediate value select procedure is the oxygen flow intermediate value according to comparing to determine oxygen flow metrical instrument A (FT-101A) flow number, oxygen flow metrical instrument A (FT-101A) flow number is composed to oxygen flow FY-101, and system program is read the numerical value of oxygen flow FY-101 and is carried out reference calculating;
2. above-mentioned condition one or condition two are not true, illustrate that then oxygen flow metrical instrument A (FT-101A) flow number is not the intermediate value of three oxygen flow metrical instrument flow numbers, and execution phase two is in order removed in the commentaries on classics of oxygen flow intermediate value select procedure;
(2) programsegment one is false, oxygen flow intermediate value select procedure execution phase two:
The first step: judge whether oxygen flow metrical instrument B (FT-101B) flow number is the intermediate value of three oxygen flow metrical instrument flow numbers:
Condition one: judge whether oxygen flow metrical instrument B (FT-101B) flow number 〉=oxygen flow metrical instrument A (FT-101A) flow number is true and whether oxygen flow metrical instrument B (FT-101B) flow number≤oxygen flow metrical instrument C (FT-101C) flow number is true;
Condition two: judge whether oxygen flow metrical instrument B (FT-101B) flow number 〉=oxygen flow metrical instrument C (FT-101C) flow number is true and whether oxygen flow metrical instrument B (FT-101B) flow number≤oxygen flow metrical instrument A (FT-101A) flow number is true;
1. it is true that above-mentioned condition one or condition two have arbitrary, and then oxygen flow intermediate value select procedure is the oxygen flow intermediate value according to comparing to determine oxygen flow metrical instrument B (FT-101B) flow number, and oxygen flow intermediate value select procedure program directly carried out for second step;
Second step: oxygen flow intermediate value select procedure is the oxygen flow intermediate value according to comparing to determine oxygen flow metrical instrument B (FT-101B) flow number, oxygen flow metrical instrument B (FT-101B) flow number is composed to oxygen flow FY-101, and system program is read the numerical value of oxygen flow FY-101 and is carried out reference calculating;
2. above-mentioned condition one or condition two are not true, illustrate that then oxygen flow metrical instrument B (FT-101B) flow number is not the intermediate value of three oxygen flow metrical instrument flow numbers, and execution phase three is in order removed in the commentaries on classics of oxygen flow intermediate value select procedure;
(3) programsegment two is false, oxygen flow intermediate value select procedure execution phase three:
The first step: judge whether oxygen flow metrical instrument C (FT-101C) flow number is the intermediate value of three oxygen flow metrical instrument flow numbers:
Condition one: judge whether oxygen flow metrical instrument C (FT-101C) flow number 〉=oxygen flow metrical instrument A (FT-101A) flow number is true and whether oxygen flow metrical instrument C (FT-101C) flow number≤oxygen flow metrical instrument B (FT-101B) flow number is true;
Condition two: judge whether oxygen flow metrical instrument C (FT-101C) flow number 〉=oxygen flow metrical instrument B (FT-101B) flow number is true and whether oxygen flow metrical instrument C (FT-101C) flow number≤oxygen flow metrical instrument A (FT-101A) flow number is true;
1. it is true that above-mentioned condition one or condition two have arbitrary, and then oxygen flow intermediate value select procedure is the oxygen flow intermediate value according to comparing to determine oxygen flow metrical instrument C (FT-101C) flow number, and oxygen flow intermediate value select procedure program directly carried out for second step;
Second step: oxygen flow intermediate value select procedure is the oxygen flow intermediate value according to comparing to determine oxygen flow metrical instrument C (FT-101C) flow number, oxygen flow metrical instrument C (FT-101C) flow number is composed to oxygen flow FY-101, and system program is read the numerical value of oxygen flow FY-101 and is carried out reference calculating;
2. above-mentioned condition one or condition two are not true, illustrate that then oxygen flow metrical instrument C (FT-101C) flow number is not the intermediate value of three oxygen flow metrical instrument flow numbers, oxygen flow intermediate value select procedure changes and to go rerun routine section one to circulate once more to carry out.
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| CN101654630B (en) * | 2009-09-01 | 2012-11-14 | 水煤浆气化及煤化工国家工程研究中心 | Safe logic control method of pulverized coal gasifier |
| CN106350119A (en) * | 2016-08-29 | 2017-01-25 | 中国天辰工程有限公司 | Coal oxygen conveying control method and device for coal gasification plant |
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| CN1385666A (en) * | 2002-03-27 | 2002-12-18 | 北京科技大学 | Computer time-division control technology for oxygen consumption in electric arc furnace |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101654630B (en) * | 2009-09-01 | 2012-11-14 | 水煤浆气化及煤化工国家工程研究中心 | Safe logic control method of pulverized coal gasifier |
| CN106350119A (en) * | 2016-08-29 | 2017-01-25 | 中国天辰工程有限公司 | Coal oxygen conveying control method and device for coal gasification plant |
| CN106350119B (en) * | 2016-08-29 | 2019-12-03 | 中国天辰工程有限公司 | A kind of the coal oxygen conveyance control method and device of coal gasification apparatus |
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