ＭＤＩ List of Products and Services

In this case, the gas/air heat exchanger "Polybloc Stainless Plate" can recover heat from exhaust gases and heat air with low pressure loss. Fin pitch can also be selected for dirt conditions and pressure loss adjustments. Furthermore, cooled exhaust gases can be efficiently recovered using the gas/liquid heat exchanger "AIREC CROSS30," allowing for latent heat recovery to preheat water and assist the boiler. For corrosion prevention at severe acid points, aluminized treatment can be applied to SUS316, and regular maintenance can prevent pitting corrosion. *For more details, please refer to the PDF materials or feel free to contact us.

Generally, the blowdown water from the boiler is around 150°C. By utilizing this waste heat for preheating the boiler feedwater, it assists in heating the boiler and contributes to energy savings. First, the intermittent blowdown water is overflowed through a heat exchanger, and the feedwater continuously passes through the heat exchanger, allowing for the recovery of the intermittent heat from the blowdown water and raising the feedwater temperature. 【Case Overview】 ■ Use of a heat exchanger for blowdown water waste heat recovery ■ Feedwater continuously passes through the heat exchanger to recover the intermittent heat from the blowdown water and raise the feedwater temperature ■ When the boiler operates 24 hours Boiler efficiency is about 90%, heavy oil at 85 yen/L, and a recoverable heat quantity of 265 kW is achievable ■ In terms of heavy oil, this can result in energy savings of 58,000 yen per day, amounting to 17,430,000 yen annually *For more details, please refer to the PDF document or feel free to contact us.

Until now, while discharging the hot air from the equipment with the furnace to the outside, the neighboring equipment was heated with steam, and as the room temperature dropped during winter, the required amount of steam increased, leading to higher steam costs. After implementing energy-saving measures, we used the plate-type gas/gas heat exchanger "HEATEX" to exchange heat between the hot air in the equipment with the furnace and the cold air in the molding equipment area, thereby reducing the heating costs of the steam unit heater. [Case Summary] ■ Used plate-type gas/gas heat exchanger "HEATEX" ■ The amount of steam saved is approximately 50 kg/h ■ Steam saved during winter 50 kg/h × 24 h/d × 30 d/m × 4 months = 144 t/year ■ Assuming the cost of steam is ¥6,300/t, the steam cost saved during winter ¥6,300 × 144 = ¥907,200 *For more details, please refer to the PDF document or feel free to contact us.