Diesel engine tail gas two-stage water-air separation and cooling washing box for explosive atmosphere

Abstract

The invention discloses a diesel engine tail gas two-stage water-air separation and cooling washing box for explosive atmosphere, and belongs to the field of power machines. The diesel engine tail gastwo-stage water-air separation and cooling washing box comprises a washing box body with a tail gas inlet, and the washing box body is divided into an upper part and a lower part communicating through a communicating opening. Cooling water is arranged on the lower part of the washing box body, and an exhaust pipe leading into the cooling water is arranged in the tail gas inlet. A gas outlet is formed in the top end of the upper part of the washing box body, and a two-stage water-air separator is further arranged in the washing box body. An air inlet and an air outlet in the upper end of the water-air separator are formed in the upper part of the washing box body, and the air inlet of the water-air separator is opposite to the communicating opening. A water outlet in the lower end of the water-air separator is formed in the cooling water of the lower part of the washing box body. According to the diesel engine tail gas two-stage water-air separation and cooling washing box, the coolingwater gasified through high temperature is converted into the liquid state again to the maximum extent and recycled into the washing box body again, and consumption of the cooling water is reduced.

Description

Technical field [0001] The invention relates to the field of power machinery, in particular to a tail gas cooling device. Background technique [0002] With the improvement of people’s safety awareness, the country has begun to implement mandatory explosion-proof standards. All diesel engines used in explosive environments must be equipped with exhaust gas cooling devices. The purpose is to cool the exhaust gas of diesel engines used in explosive environments so that they can work in explosive environments (including Combustible gas and dust environment) meet the industry standard "MT990—2006 General technical requirements for explosion-proof diesel engines for mines" and GB20800-2006 General rules of explosion-proof technology for reciprocating internal combustion engines for explosive atmospheres. Part 1: Class II internal combustion engines for flammable gas and steam environments. And "GB20800-2006 Explosion-proof Technology General Rules for Reciprocating Internal Combustion...

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Problems solved by technology

[0003] In the prior art, the shell-and-tube heat-exchange dry-type exhaust gas cooler is usually used. When the shell-and-tube heat-exchange dry-type exhaust gas cooler is first used, the effect is good, but as the use time increases, carbon deposits will gradually block the exhaust gas. The air channel is very difficult to clean, which will increase the exhaust back pressure of the diesel engine, seriously affect the operating efficiency of the diesel engine, and reduce the service life of the equipment

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