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Device and method for preventing reactor from losing control by tail gas flow monitoring

A flow monitoring and reactor technology, applied in chemical instruments and methods, chemical/physical processes, chemical/physical/physicochemical processes, etc., can solve problems such as insensitivity

Active Publication Date: 2014-07-23
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the method of monitoring the reaction temperature is not very sensitive to certain reactions, such as operating below the bubble point

Method used

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  • Device and method for preventing reactor from losing control by tail gas flow monitoring

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Embodiment 1

[0029] see figure 1 As shown, a device for preventing reactor out of control through tail gas flow monitoring, including a flow transmitter 1, a liquid level transmitter 2, a logic processor 3 and a safety device 4;

[0030] Described flow transmitter 1 is connected with the tail gas pipeline of reactor 5, is used for measuring the flow of tail gas;

[0031] The liquid level transmitter 2 is connected to the reactor 5 for measuring the liquid level fluctuation of the reactor 5;

[0032] The flow transmitter 1 and the liquid level transmitter 2 are respectively connected to a logic processor 3 through a data transmission line, and the logic processor 3 is used to receive the flow data from the flow transmitter 1 and the flow data from the liquid level transmitter. 2’s real-time liquid level data, and calculate the liquid level fluctuation speed according to the real-time liquid level data; since the liquid level fluctuation of reactor 5 will also cause the change of tail gas f...

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Abstract

The invention discloses a device for preventing a reactor from losing control by tail gas flow monitoring, comprising a flow transmitter, a liquid level transmitter, a logic processor and a safety facility, wherein the flow transmitter is connected with the tail gas pipe of the reactor; the liquid level transmitter is connected with the reactor; the flow transmitter and the liquid level transmitter are respectively connected with the logic processor through data transmission lines; and the logic processor is connected with the safety facility through the data transmission line. The invention further discloses a method for preventing the reactor from losing control by tail gas flow monitoring. According to the invention, the detection of partial uncontrolled reaction is sensitive, such as a uncontrolled reaction which generate noncondensable gases, or a reaction operated under a bubble point; reaction abnormity can be detected in early stage detection of the uncontrolled reaction, thereby necessary measures are adopted to prevent accidents.

Description

technical field [0001] The invention relates to the field of chemical production safety, in particular to a device and method for preventing a reactor from running out of control through tail gas flow monitoring. Background technique [0002] Exothermic reactions occur in many chemical and petrochemical reactions, and in many cases the release of energy in the reaction system must be limited in a suitable manner for safety reasons. If the excessive release of energy deviates from the predetermined reaction operation, it is often accompanied by a sharp rise in temperature and pressure. The industry uses "out of control" to describe this situation. At present, the method of monitoring the reaction temperature is generally used to know whether an out-of-control reaction has occurred in the reactor. However, the method of monitoring the reaction temperature is not very sensitive to some reactions, such as operating below the bubble point. Contents of the invention [0003] T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/00
Inventor 黄飞金满平孙峰张帆孟庭宇姜杰石宁谢传欣
Owner CHINA PETROLEUM & CHEM CORP
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