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The meaning of displacement refers to the ability to send all air and mixture into all cylinders in a certain cycle of engine operation, and also refers to the volume that the piston can discharge from one stroke to another.

The gas discharged from the last stage of the compressor in unit time is converted, and the gas volume value obtained under the pressure and temperature conditions of the first-stage intake state is the displacement of the compressor. Its calculation method is the same as the volume of a cylinder.

Extended data

According to the standard, the statistical range of waste gas includes all kinds of waste gas outlets directly or indirectly related to production technology and equipment. The conventional pyrometallurgical copper smelting process with copper concentrate as raw material includes "raw material preparation-smelting-blowing-refining-electrolysis". There are also many scattered waste gas emission sources in each production link, such as acid mist from electrolytic cleaning workshop, waste gas from precious metal treatment workshop, waste gas from dust crushing system, waste gas from slag beneficiation, etc.

Some of the waste gases discharged from these sources are collected and treated in the form of several low exhaust pipes (such as roof exhaust pipes), some are directly discharged in the form of unorganized sources in some irregular and small-scale enterprises, and some are directly outsourced as intermediate products because enterprises have not built their own treatment workshops. Based on the principle of highlighting key points and facilitating prevention and control, the author investigated the prevention and control links proposed in the Technical Guidelines for On-site Supervision of Copper Smelters by adopting simplified methods.

The accounting scope of standard exhaust volume per unit product includes material preparation (including drying or batching flue gas), smelting and blowing (collecting surrounding flue gas), refining (anode furnace flue gas) and acid making (acid making tail gas).

Resource exhaustion Baidu Encyclopedia