Control method of liquid level in autoclave for fluothane hydrocarbon production

A control method and technology of kettle liquid level, which is applied in the direction of halogenated hydrocarbon preparation, chemical instruments and methods, sustainable manufacturing/processing, etc., can solve the problems of liquid level measurement deviation, leakage, operation error, etc., and achieve accurate control of liquid level Effect

Inactive Publication Date: 2007-09-26
泰州青松致冷新材料有限公司
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Problems solved by technology

[0003] 1) The corrosion problem of difluoromethane produced by the liquid phase fluorination process is universally recognized, and the corrosion of liquid level measuring instruments is also inevitable, resulting in unreliable measurement results and resulting in operational errors
[0004] 2) The mechanism of liquid phase fluorination reaction is complicated, and the reaction state in the kettle and a large amount of gas-liquid entrainment can easily cause serious deviations in liquid level measurement
[0005] 3) Once the liquid level gauge is corroded, it is easy to cause leakage, leading to major accidents and environmental pollution

Method used

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  • Control method of liquid level in autoclave for fluothane hydrocarbon production

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Embodiment Construction

[0012] The reaction kettle 1 and the reactive distillation tower 2 are integrally supported on a rectangular movable platform with a steel structure, and six 5-10 ton electronic weighing modules 3 are respectively placed in the four corners and the middle of the platform, and the reactive distillation tower 2 is respectively electronically scaled. The weighing module 3 is fixed on the movable guide rails 4 on the platforms of each layer to ensure free movement up and down, and the relevant pipelines adopt soft connections 5 . The collected signal is displayed on site and transmitted to the DCS system in the control room through remote transmission to reflect the actual weight of the reactor in time, so that the operator can understand the liquid level of the reactor and control the operation to ensure the smooth operation of the reaction.

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Abstract

The invention discloses a controlling method of autoclave liquid position through fluothane, which is characterized by the following: using electronic weighing technique to display weight variation of materials in the autoclave; supporting autoclave (1) and reacting rectifying tower (2) on the mobile platform; placing multiple electronic weighing modes (3) on the platform; fixing reacting rectifying tower (2) on each layer of platform through mobile rail (4); reflecting real weight corresponding to autoclave; judging the liquid position according to weight; operating to control.

Description

technical field [0001] The invention relates to a method for controlling the liquid level of a fluoroalkane production reactor. Background technique [0002] At present, there are almost no instruments available for the measurement of the reaction liquid level during the fluorination reaction of difluoromethane except the radar liquid level gauge. However, in the liquid phase fluorination process, the use of radar level gauges to measure the liquid level of the reactor has the following disadvantages: [0003] 1) The corrosion problem of difluoromethane produced by the liquid-phase fluorination process is universally recognized, and the corrosion of liquid level measuring instruments is also inevitable, resulting in unreliable measurement results and resulting in operational errors. [0004] 2) The mechanism of liquid-phase fluorination reaction is complex, and the reaction state in the kettle and a large amount of gas-liquid entrainment can easily cause serious deviations ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C17/00C07C19/08
CPCY02P20/10
Inventor 严根山陈明张海洪
Owner 泰州青松致冷新材料有限公司
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