A flue gas cooler applied to mobile medical waste treatment system

Abstract

The invention discloses a flue gas cooler applied to a mobile medical waste treatment system, which belongs to the field of energy and environmental protection, and is proposed in view of the large area occupied by the existing equipment and the low heat exchange efficiency, including: a flue and a flue installed in the flue The heat exchange tube box has a flue gas channel and an air heat exchange chamber inside the heat exchange tube box. There are at least two flue gas channels in series in the heat exchange tube box. The flue gas enters the flue gas channel from the flue inlet, and the flue gas After cooling down, it flows back into the flue from the outlet of the flue, and the inlet of the flue and the outlet of the flue are set on the same side or on the opposite side; Single air heat exchange chambers are connected in series to form an air heat exchange chamber. Cold air enters from the air inlet of the heat exchange tube box, exchanges heat with flue gas during the flow process, and the hot air after heat exchange is discharged from the air outlet of the heat exchange tube box. The air inlet and air outlet of the heat exchange tube box are arranged on the same side or different sides. The invention has small volume, compact structure and high heat exchange efficiency.

Description

Technical field: [0001] The invention belongs to the technical field of energy and environmental protection, and in particular relates to a flue gas cooler applied to a mobile medical waste treatment system. Background technique: [0002] Medical waste has the characteristics of space pollution, acute infection and latent pollution. Its viruses and germs are dozens, hundreds or even thousands of times more harmful than ordinary domestic waste. If it is not handled properly, it will cause serious pollution to the environment and may also become the source of epidemics. At present, incineration is mainly used for medical waste disposal, and mobile medical waste disposal equipment can realize on-site incineration and disposal of medical waste, avoiding the risk of virus spread caused by medical waste transfer. At present, cooling water or air is generally used in mobile medical waste treatment systems to directly quench the high-temperature flue gas at the outlet of the incine...

AI Technical Summary

Problems solved by technology

At present, cooling water or air is generally used in mobile medical waste treatment systems to directly quench the high-temperature flue gas at the outlet of the incineration chamber at about 1000 °C to about 200 °C, which more than doubles the amount of flue gas passing through the dust removal system and fan system. This has brought about a sudden increase in the amount of flue gas. In order to meet the environmental protection emission requirements, the size of the equipment needs to be larger, and the equipment that is too large is difficult to meet the layout requirements of the mobile medical waste treatment system, so it is necessary to add another car body. To arrange power generation and air compression equipment, resulting in increased investment in equipment

At the same time, in the existing mobile medical waste treatment system, because of the direct quenching, there is no way to recycle the energy, the system fuel consumption and power consumption are relatively high, and the economy of the whole system is poor

[0003] In addition, at present, the air preheater of large thermal power plant boilers or hot water boilers usually has a single-pass arrangement on the flue gas side and a multi-pass arrangement on the air side, and the flue gas temperature does not exceed 400°C. This type of preheater cannot be applied In a medical waste incineration system with a small amount of flue gas and a temperature as high as 1000°C

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