Process for conducting secondary heat energy utilization on tail gas of stationery engine

Abstract

The invention discloses a process for conducting secondary heat energy utilization on tail gas of a stationery engine. A smoke inlet, a smoke chamber, a heat exchanger, an anechoic chamber and a smoke outlet which are sequentially connected are included. An air inflow pipe and a draught fan installed on the air inflow pipe are further included. The output end of the draught fan enters the heat exchanger, an opening is formed in the heat exchanger, and a hot air outflow pipe is installed on the opening. After the high-temperature tail gas of the engine is subjected to heat exchange, high-temperature hot air is used for conducting heating and heat preservation on drilling equipment and replaces a boiler. Compared with a water heating mode, the heating effect can be achieved, the draught fan is started for heat exchange and air supply only when the draught fan is needed, continuity and non-interruption of water heating are avoided, cost is far lower than that of water heating, and the purposes of reducing emissions and saving energy are achieved.

Description

technical field [0001] The invention relates to a heat exchange device, in particular to a process for secondary heat energy utilization of stationary engine tail gas. Background technique [0002] At present, only 40.5% of the domestic 12V190 series diesel engine works is converted into effective mechanical power, and 59.5% of the heat exchanger (3) includes end panels connected with the smoke chamber (2) and the anechoic chamber (8) respectively (9), the two end panels (9) and the side walls form a closed chamber, and a plurality of heat exchange tubes ( 10) Solve the following technical problems: 1. The flue gas recovery device cannot form resistance to the exhaust of the diesel engine. 2. The influence of carbon deposits from diesel engine exhaust on the heat conduction of the exhaust gas recovery device. 3. Selection of recycling medium. In view of the above problems, the development of this technical field is restricted. However, the drilling team uses boilers to p...

AI Technical Summary

Problems solved by technology

[0002] At present, only 40.5% of the domestic 12V190 series diesel engine works is converted into effective mechanical power, and 59.5% of the heat exchanger (3) includes end panels connected with the smoke chamber (2) and the anechoic chamber (8) respectively (9), the two end panels (9) and the side walls form a closed chamber, and a plurality of heat exchange tubes ( 10) Solve the following technical problems: 1. The flue gas recovery device cannot form resistance to the exhaust of diesel engines

2. The influence of carbon deposits from diesel engine exhaust on the heat conduction of the exhaust gas recovery device

In view of the above problems, the development of this technical field is restricted

However, the drilling team uses boilers to prevent freezing and heat preservation of drilling equipment in winter production. There are two main problems in this heat preservation method: 1. It consumes a lot of energy. According to statistics, a drilling team will burn about 300 tons of coal and consume about 300 tons of coal on average during the winter heating period. 2000 square meters, resulting in a large amount of energy waste and environmental pollution, high operating costs

2. Boiler water vapor is easy to freeze after condensation

At present, the large amount of heat energy in the exhaust gas of diesel engines cannot be well utilized. On the other hand, it needs to consume a large amount of coal and water resources for winter antifreeze and heat preservation of drilling rig equipment. This is a very prominent problem.

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