Negative pressure and positive pressure automatic ignition method of hydrogen chloride synthesis furnace

An automatic ignition and synthesis furnace technology, applied in the direction of chlorine/hydrogen chloride, etc., can solve the problems of manpower consumption and low safety factor, and achieve the effect of improving the degree of automation, improving the safety factor and saving manpower

Active Publication Date: 2016-05-18
SHANGHAI TIANSAN AUTOMATIC CONTROL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is: the ignition mode of the existing hydrogen chloride synthesis furnace relies on manual participation in the whole process, completely relies on manual operation, which is more labor-intensive and has a low safety factor

Method used

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  • Negative pressure and positive pressure automatic ignition method of hydrogen chloride synthesis furnace
  • Negative pressure and positive pressure automatic ignition method of hydrogen chloride synthesis furnace
  • Negative pressure and positive pressure automatic ignition method of hydrogen chloride synthesis furnace

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Effect test

Embodiment （ 1

[0026] see Figure 1-Figure 5 , Negative pressure ignition is a common operation method in the long-term artificial ignition process. The present invention needs to completely program this process. After pressing the start button, the safety valve in charge of hydrogen and chlorine will automatically open, and the nitrogen valve will automatically open. The furnace will automatically flush nitrogen. After the synthesis furnace is flushed with nitrogen, the furnace door of the synthesis furnace will be opened automatically, and at the same time, the fan or hydraulic pump will be turned on at the emptying place for suction. Since the furnace door of the synthesis furnace is open, the air will enter from the furnace door. , establish an air field in the synthesis furnace, that is, the oxidant when hydrogen is burned, the oxidant is sufficient and excessive, keep the air circulation for a certain period of time, and ensure that the air field in the synthesis furnace is sufficient. ...

Embodiment （ 2

[0032] see figure 1 , 6 7. The synthesis furnace is completely ignited and raised in a closed working condition. The whole process is constantly judged and stepped. On the premise of ensuring safety and stability, the one-key ignition mode of the synthesis furnace is realized. Any judgment and actual If it does not match, implement the security protection program.

[0033] Once the auto-ignition system has established the pilot flame, the primary hydrogen can be mixed with the primary combustion air to establish the primary combustion flame. When starting up, the combustion-supporting air flow rate entering the system is consistent with the required chlorine gas intake flow rate at the minimum production capacity of the synthesis unit. Therefore, after the nitrogen purge is completed, the combustion-supporting air flow controller FFIC-0405 / HIC-0004 inputs 200Nm3 / h of combustion air.

[0034] The amount of hydrogen should be consistent with the required hydrogen intake flow...

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Abstract

The invention relates to a negative pressure auto-ignition method for a hydrogen chloride synthesizing furnace. The negative pressure auto-ignition method is characterized by comprising the following steps: calling a nitrogen purging program by a computer: starting nitrogen purging, collecting nitrogen pressure data up to a set value, and starting a timer for timing till a set time; calling a nitrogen purging stopping program by the computer: turning off nitrogen purging; delaying for a certain time; calling an air controlling program by the computer: opening an air valve, and injecting air into the furnace; calling an igniting gun program by the computer: igniting by using the igniting gun, collecting temperature data and ultraviolet data detected from flame of the igniting gun till the temperature data and / or ultraviolet data reach / reaches set values / value; and calling a central flame controlling program by the computer: opening a central small flame hydrogen valve and a central small flame chlorine valve, filling quantitative hydrogen and chlorine into the furnace in proportion, delaying for a certain time, and opening a central flame hydrogen valve and a central flame chlorine valve, and further filling quantitative hydrogen and chlorine into the furnace in proportion.

Description

technical field [0001] The invention relates to a negative pressure and positive pressure automatic ignition method for a hydrogen chloride synthesis furnace, belonging to the technical field of chemical production automation control. Background technique [0002] The hydrogen chloride synthesis furnace is a specific object in chemical production. It needs a gradual process from starting ignition to putting into process control. The working conditions of the object are extremely complicated, the state measurement is difficult, and the control identification is vague. Therefore, the automatic ignition technology of hydrogen chloride synthesis furnace is a comprehensive technology that integrates processes, measurement technology, computer data acquisition and calculation. [0003] The automatic control of hydrogen chloride synthesis furnace has always been a blank in this field. How to realize automatic control from ignition to normal process after one-button start is an unso...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B7/01
Inventor 崔慕寅李希白
Owner SHANGHAI TIANSAN AUTOMATIC CONTROL
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