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Vinyl acetate storage device and alarm and control method for crude vinyl acetate

A vinyl acetate storage tank and vinyl acetate technology, applied in the field of alarm and control for safe operation or safe storage, can solve problems such as accidents, explosions, and major production safety responsibilities, and achieve safe storage and prevent loss of control

Inactive Publication Date: 2012-06-27
CHINA PETROLEUM & CHEM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The vinyl acetate storage tanks in most vinyl acetate storage devices cannot withstand these pressure environments. The crude vinyl acetate storage tanks of Guangxi Vinylon Factory exploded for this reason, causing major production safety liability accidents. Other major vinyl acetate manufacturers also Near miss accident involving runaway polymerization of vinyl acetate storage tanks

Method used

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  • Vinyl acetate storage device and alarm and control method for crude vinyl acetate
  • Vinyl acetate storage device and alarm and control method for crude vinyl acetate
  • Vinyl acetate storage device and alarm and control method for crude vinyl acetate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] The vinyl acetate storage device of the present invention comprises a vinyl acetate storage tank 1, a vinyl acetate material feed valve 2 arranged on the vinyl acetate storage tank, a temperature sensor 3 arranged on the vinyl acetate storage tank, a cooler 4, Discharge pump 5, emergency discharge valve 6, discharge valve 7, material feed pipeline, discharge pipeline, spray water device and spare storage tank 10 made up of spray head 8 and water supply pipeline 9, described The material feed valve 2 is connected to the vinyl acetate storage tank 1 through the material feed pipeline, one end of the discharge pump 5 is connected to the vinyl acetate storage tank 1 through the discharge pipeline, and the other end is connected to the vinyl acetate storage tank 1 through the discharge pipeline. One branch of the pipeline is connected to the emergency discharge valve 6, the other branch of the discharge pipeline is connected to the discharge valve 7, and the emergency dischar...

Embodiment 2

[0062] Crude vinyl acetate material is housed in the vinyl acetate storage tank 1 in the vinyl acetate storage device in embodiment 1, determines that this crude vinyl acetate reaches the required time TMRad=64h of maximum reaction rate under adiabatic condition, judges crude vinyl acetate When the crude vinyl acetate is in a dynamic state, the alarm temperature is set to 51.5°C. The temperature of the crude vinyl acetate material in the vinyl acetate storage tank 1 is measured in real time by the temperature sensor 3 set on the crude vinyl acetate storage tank 1; when the measured temperature of the crude vinyl acetate material in the storage tank reaches the alarm temperature of 51.5°C , increase the amount of water sprayed by the spray water device on the outer wall of the vinyl acetate storage tank 1, and at the same time, open the feed valve of the polymerization inhibitor, and add the polymerization inhibitor to the vinyl acetate storage tank 1 Hydroquinone, so that the ...

Embodiment 3

[0064]Crude vinyl acetate material is housed in the vinyl acetate storage tank 1 in the vinyl acetate storage device in embodiment 1, determines that this crude vinyl acetate reaches the required time TMRad=64h of maximum reaction rate under adiabatic condition, judges crude vinyl acetate When the crude vinyl acetate is in a static state, the temperature sensor 3 on the vinyl acetate storage tank 1 detects that the initial storage temperature of the crude vinyl acetate material stored in the storage tank is 30 ° C, and its alarm temperature Set to 41°C. The temperature of the crude vinyl acetate material in the vinyl acetate storage tank is measured in real time by the temperature sensor 3 set on the crude vinyl acetate storage tank 1; when the temperature obtained by the temperature sensor 3 reaches 39° C. of the alarm temperature, increase the Spraying water device sprays the amount of water to the outer wall of the vinyl acetate storage tank 1, and at the same time, open th...

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PUM

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Abstract

The invention provides a vinyl acetate storage device, which comprises a vinyl acetate storage tank, a vinyl acetate material feeding valve, a temperature detecting device, a cooler, a water spray device and a standby device, wherein the vinyl acetate material feeding valve and the temperature detecting device are arranged on the vinyl acetate storage tank, and the vinyl acetate storage tank is connected with the standby device via the cooler. When the vinyl acetate storage device is used for storing crude vinyl acetate, reasonable alarming temperature is set and effective control measurements are put forward for the crude vinyl acetate stored in the vinyl acetate storage device during operation and stoppage of the vinyl acetate storage device, so that self-polymerization reaction of the crude vinyl acetate is further prevented from being out of control, and the crude vinyl acetate is guaranteed to be safely stored under the static condition and to be safely operated under the dynamic situation.

Description

technical field [0001] The invention relates to the technical field of chemical safety, in particular to an alarm and control method for safe operation or safe storage of crude vinyl acetate. Background technique [0002] Vinyl acetate is one of the 50 largest chemical raw materials in the world. A synthetic polymer compound obtained by polymerization or copolymerization of vinyl acetate. Because it can produce a series of derivatives such as polyvinyl acetate, polyvinyl alcohol, and acetal resin, vinyl acetate has been widely used in the fields of coatings, synthetic fibers, leather processing, and soil improvement. more and more widely used. [0003] Vinyl acetate monomer (VA) is a readily polymerizable chemical intermediate and a building block for many polymer and emulsion applications. Laboratory data shows that under normal circumstances, the specification grade vinyl acetate monomer (VA) will not form polymers, but experience has proved that polymerization initiator...

Claims

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Application Information

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IPC IPC(8): B65D88/74B65D90/22B65D90/48
Inventor 姜杰刘世均张晨谢传欣石宁付武华孟庭宇王慧欣张宏哲张铁黄飞
Owner CHINA PETROLEUM & CHEM CORP
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