A heat exchange control device for ethyl chloride synthesis reactor

Abstract

The invention discloses a heat exchange control device for an ethyl chloride synthesis reactor. The control mechanism for controlling the type and quantity of water passing through, the heat exchange control device for the ethyl chloride synthesis reactor, by setting the control structure of the circulating water in the cooling coil group, the control mechanism can automatically control the low-pressure water and circulation of the discharged air The entry sequence of the high-pressure water used, and while controlling the sequence, it can also realize the input of individual pipes of the cooling coil group one by one, so as to better control the temperature and reaction pressure.

Description

technical field [0001] The invention relates to the technical field of heat exchange devices, in particular to a heat exchange control device for an ethylene chloride synthesis reactor. Background technique [0002] Ethylene chloride synthesis reactor is a typical liquid-phase catalytic tower reactor. The appearance of the equipment is the shape of a vertical chemical separation tower. Because the reaction is an exothermic reaction, it is the key to remove the released heat in time. Therefore, ethyl chloride The synthesis reactor needs to have a heat exchange device. [0003] The existing heat exchange devices mostly use coil heat exchange, and the reactor heat removal coil has the function of switching between hot and cold water simultaneously. When the cooling water enters the pipeline at the initial stage of the system reaction, it is necessary to discharge the air through low-pressure water to prevent water hammer. phenomenon, because when the electric water pump is sta...

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Problems solved by technology

[0003] Existing heat exchange devices mostly use coils for heat exchange, and the coils of the reactor have the function of switching hot and cold water simultaneously. When the cooling water enters the pipeline at the beginning of the system reaction start-up, the air needs to be discharged through low-pressure water to prevent water hammer. phenomenon, because when the electric water pump is started at full voltage, it can accelerate from a static state to a rated speed in less than 1 second, and the flow in the pipeline increases from zero to the rated flow, because the fluid has momentum and a certain degree of compressibility Therefore, the sharp change of the flow rate will cause the impact of high or low pressure in the pipeline, and the phenomenon of "cavitation". The impact of pressure will force the pipe wall and generate noise, just like a hammer hitting the pipe. Known as the "water hammer effect", which seriously shortens the service life of the heat exchange device

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