Technological process for preparing liquid chlorine at low temperature and low pressure

Abstract

The invention discloses a technological process for preparing liquid chlorine at low temperature and low pressure. The technological process comprises the following steps: introducing chlorine from electrolysis into a buffer tank; acid foam, impurities and moisture in the chlorine gas are further removed in the chlorine gas tank; the dried chlorine gas enters the chlorine gas distribution table and is mixed with tail chlorine and then is fed into a liquefier; when the liquefied gas passes through the heat exchange tube in the liquefier; by means of the principle of R22 liquid and gas conversion heat absorption, most of the mixed chlorine is condensed and liquefied into liquid chlorine; in the gas-liquid separator, liquid chlorine and tail chlorine are separated, the liquid chlorine flows into the liquid chlorine storage tank, the tail chlorine enters the tail chlorine distribution table, the liquid chlorine enters the distribution table through the magnetic pump after entering the liquid chlorine storage tank and is filled into a qualified steel cylinder; after the tail chlorine is treated on the tail chlorine distribution table, non-liquefied chlorine enters the chlorine distribution table through a pipeline and is mixed with dry chlorine again. According to the invention, a series of structures are arranged, so that the efficiency of the process flow for preparing liquid chlorine is greatly improved, and the preparation rate is high.

Description

technical field [0001] The invention relates to the technical field of liquid chlorine preparation, in particular to a process flow for obtaining liquid chlorine at low temperature and low pressure. Background technique [0002] The chemical name of liquid chlorine is liquid chlorine, which is a yellow-green liquid with a boiling point of -34.6°C and a melting point of -103°C. It is vaporized into a gas under normal pressure. It can be seriously poisoned to the human body if it is inhaled. It has a severe stimulating effect and is corrosive. Combustion and explosion occur when flammable gases are mixed. Chlorine is a very active substance that can react with most elements (or compounds). At 15°C, the specific gravity is 1.4256. Under standard conditions, the boiling point is -34.6°C and the freezing point is -101.5°C. Strongly corrosive to steel in the presence of moisture. Liquid chlorine is a basic chemical raw material, which can be used in metallurgy, textile, papermak...

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Problems solved by technology

[0004] The object of the present invention is to provide a kind of technological process of getting liquid chlorine under low temperature and low pressure, to solve the problem that the liquefaction rate of chlorine gas in the existing market of a kind of low temperature and low pressure getting liquid chlorine proposed in the background technology is not high, Great waste of raw materials and other issues

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