Liquefied gas dehydrator

Abstract

The present invention discloses a liquefied gas dehydrator. The liquefied gas dehydrator comprises a gas-liquid buffer tank, a liquid inlet pipe, a drain pipe and an exhaust pipe, and a flow regulating valve, a filter and a first stop valve are sequentially arranged on the liquid inlet pipe from the joint of the liquid inlet pipe and the gas-liquid buffer tank; a drainage control valve and a second stop valve are sequentially arranged on the drainage pipe from the joint of the drainage pipe and the gas-liquid buffer tank, and a one-way valve and a third stop valve are sequentially arranged onthe exhaust pipe from the joint of the exhaust pipe and the gas-liquid buffer tank. A heating device is arranged at the lower part in the gas-liquid buffer tank; a demisting device is arranged on theupper portion of the interior of the gas-liquid buffer tank, VOC emission is reduced, labor intensity is reduced, operation safety is improved, occupational health damage to liquid removal operators is reduced, the purpose of protecting the atmosphere is achieved, and health of the human body is further facilitated. The liquefied gas dehydrator has the very high commercial value and popularizationvalue.

Description

technical field [0001] The invention relates to industrial equipment, in particular to a liquefied gas dehydrator. Background technique [0002] VOC (volatile organic compound) emission is one of the important sources of air pollution. In petroleum, chemical and other industries involving flammable and toxic liquefied gases, process equipment and storage equipment are often dehydrated for production, use, and storage needs. During dehydration, the water is directly discharged from the equipment to the sewage collection system. When the water is discharged, a large amount of entrained or dissolved liquefied gas will be vaporized and discharged into the atmosphere, causing air pollution. [0003] In the development of toxic and flammable liquefied gas dehydration technology in the past few decades, most of the discharge liquid is introduced into the closed system for the recovery of gasification gas to reduce the risk of air pollution and flash explosion caused by gas emissio...

AI Technical Summary

Problems solved by technology

This method is not easy to control the amount of discharge liquid, and cannot guarantee the dehydration effect. Especially for liquefied gas with high solubility in water, a large amount of liquefied gas is dissolved in the discharge liquid. If the water is ensured, it will inevitably cause a large amount of liquefied gas. On the one hand, it will cause greater pollution, and on the other hand, it will cause the loss of high-value materials

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