カテゴリーアーカイブ 鉱山の換気

Mine exhaust heat extraction box with built-in air-to-air heat exchanger

The built-in air-to-air heat exchanger in the mine exhaust heat extraction box is a device specifically designed to recover waste heat from mine exhaust air. Mine exhaust refers to the low-temperature, high humidity waste gas discharged from a mine, which usually contains a certain amount of heat but is traditionally discharged directly without being utilized. This device uses a built-in air-to-air heat exchanger (i.e. air-to-air heat exchanger) to transfer heat from the exhaust air to another stream of cold air, thereby achieving the goal of waste heat recovery.

動作原理
Lack of air input: The mine's lack of air is introduced into the heat extraction box through the ventilation system. The temperature of the exhaust air is generally around 20 ℃ (the specific temperature varies depending on the depth of the mine and the environment), and the humidity is relatively high.
Function of Air to Air Heat Exchanger: The built-in air to air heat exchanger usually adopts a plate or tube structure, and the exhaust air and cold air exchange heat through a partition type in the heat exchanger. The heat from the lack of wind is transferred to the cold air, while the two airflows do not mix directly.
Heat output: After being heated by heat exchange, the cold air can be used for anti freezing of mine air inlet, heating of mining area buildings, or domestic hot water, while the exhaust air is discharged at a lower temperature after releasing heat.
Characteristics and advantages
Efficient and energy-saving: Air to air heat exchangers do not require additional working fluids and directly utilize the heat transfer from air to air. They have a simple structure and low operating costs.
Environmental friendliness: By recycling exhaust heat and reducing energy waste, it meets the requirements of green and low-carbon development.
Strong adaptability: The equipment can be customized and designed according to the flow rate and temperature of the mine exhaust, suitable for mines of different scales.
Easy maintenance: Compared to heat pipe or heat pump systems, air-to-air heat exchangers have a relatively simple structure and require less maintenance.
アプリケーションシナリオ
Anti freezing at the wellhead: Use the recovered heat to heat the mine air intake and avoid freezing in winter.
Building heating: providing heating for office buildings, dormitories, etc. in the mining area.
Hot water supply: Combined with the subsequent system, provide a heat source for domestic hot water in the mining area.
precautions
Moisture treatment: Due to the high humidity of the exhaust air, the heat exchanger may face the problem of condensation water accumulation, and a drainage system or anti-corrosion materials need to be designed.
Heat transfer efficiency: The efficiency of an air-to-air heat exchanger is limited by the specific heat capacity and temperature difference of the air, and the recovered heat may not be as high as that of a heat pump system, but its advantage lies in its simple structure.

鉱山換気廃熱回収熱交換器

鉱山換気廃熱回収熱交換器は、鉱山換気システムから発生する廃熱を回収して利用するための装置です。地下採掘作業では、換気プロセス中に大量の熱が生成され、通常、この熱は廃棄物として大気中に放出されます。

廃熱回収熱交換器の目的は、鉱山の換気空気から熱を捕捉し、水や空気などの別の媒体に移し、さらに使用することです。熱交換器は通常、換気システムに設置され、高温の換気空気が熱交換器を通過し、その熱を二次媒体に伝達します。

熱交換器内の熱伝達プロセスにより、換気空気が冷却されると同時に二次媒体が加熱されます。加熱された二次媒体は、暖房、給湯、さらには発電などのさまざまな用途に利用できます。

鉱山の換気システムに廃熱回収熱交換器を導入することで、廃棄される熱エネルギーを効果的に回収して利用することができ、その結果、エネルギーが節約され、鉱山作業全体のエネルギー効率が向上します。このアプローチは、エネルギー消費を削減するだけでなく、より持続可能で環境に優しい鉱業にも貢献します。

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