Product name: Rotary heat recovery fresh air unit

Product name: Rotary heat recovery fresh air unit
Scope of application:
●Air volume range: 200-1000m3/h
●Commercial air conditioning system:
Star-rated hotels, high-end office buildings, residential buildings with central heating and cooling, large supermarkets, bus stations, railway stations, airplane waiting rooms, hospitals, indoor gymnasiums, swimming pools, etc.
●Industrial air conditioning system:
Printing machinery, papermaking, textiles, pharmaceuticals, food, electronics, etc.
working principle
The main component of the rotary heat exchanger is a disc-shaped heat storage wheel, which is made of aluminum foil wound into a honeycomb shape as a heat storage body. When working, the fresh air passes through one semicircle of the heat exchanger, and the exhaust air passes through the other semicircle in the opposite direction. Under the action of the power mechanism, the heat storage wheel rotates continuously at a speed of about 10 rpm, and the heat storage body is continuously heated on the high-temperature semicircle side to absorb heat; when it rotates to the low-temperature semicircle side, it is cooled and releases heat. This cycle repeats, and part of the energy (coldness, heat) in the exhaust air is recovered into the fresh air. The surface of the aluminum foil is coated with hygroscopic material to make a full-heat type rotor. The moisture in the airflow enters the hygroscopic coating, and the moisture is released when the rotor reaches another airflow. The achievement of the rotary heat exchanger is to use the exchange of sensible heat and latent heat between the fresh air and the exhaust air to recover energy, so as to save energy and maintain good ventilation. The fresh air can be pre-cooled and dehumidified in summer, and pre-heated and humidified in winter.
The main function
●Heat exchange rate is as high as 70%-90%;
●The core desiccant content is high and the moisture transfer effect is significant;
●The coating of molecular sieve adopts patented sintering technology, which is not easy to peel off and has remarkable heat transfer and quality conversion effect;
●A single rotor has a large windward area, small thickness, small resistance, and small footprint, making it easy to combine with other functional sections of the air conditioning unit;
● With self-cleaning function and cleaning fan, it is more durable
Product Features
1. The heat recovery rate is above 81.5%, and the pressure drop after exchange is 200Pa.
2. The rotary heat exchanger has considerable temperature efficiency at 12 rpm and humidity efficiency at about 20 rpm.
3. The wheel has two uses: total heat recovery and sensible heat recovery.
4. The installed power load is reduced, achieving the purpose of energy saving. There is no need to install air intake reheating equipment, which improves the conditions of surface cooling and insulation.
5. The wheel core is made of special aluminum alloy with high heat transfer coefficient, chlorine resistance, corrosion resistance and long service life.
6. Structure: Overall winding + fixed spoke structure. No glue is used, the structure is firm and stable, the service life can reach more than 15 years, and it can be cleaned with high-pressure air, water, steam, solution, etc.
7. The unit frame is equipped with a heat-insulating and cold-proof bridge. All metal inside the air handling unit box is isolated from the metal outside by polyurethane foam and specially designed rubber sealing strips, and fits tightly with the panel, with low air leakage rate.
The buckle plate is buckled into the aluminum profile frame, so the corners of the sheet metal are completely isolated from the humid air, so there are no rust spots on the panel.
9. Solid structural design: The unit is connected by aluminum alloy profiles and cast aluminum plug-ins, with high overall strength. At the same time, a square steel frame is designed inside the unit according to different air volumes and air pressures to further enhance the strength of the unit.
10. Polyurethane insulation: The panel is composed of polyurethane foam with a density of 50kg/m3 and extremely low thermal conductivity and two layers of inner and outer steel plates. The standard panel thickness is 25mm, 35mm, and 50mm.
11. Both the fan and motor components have unique vibration reduction devices, and the fan outlet and panel are flexibly connected to minimize the vibration and noise of the unit. The unique sealing structure prevents the noise from being transmitted outside the unit, so we provide you with a quiet unit to meet the application requirements of various industries and occasions.
12. The unit box adopts a double-panel structure, with an outer wall thickness of ≥0.5mm, an inner wall thickness of ≥0.6mm, and a panel thickness of 50mm. The box insulation layer adopts flame-retardant polyurethane foam. The inner surface of the unit can be cleaned and disinfected regularly to ensure air quality, while ensuring optimal thermal insulation and vibration reduction. The panel and frame are designed for easy disassembly and assembly.
13. Fin aluminum foil thickness 0.13mm, copper tube ￠15.8×0.5mm, heat transfer coefficient ≥54m2W/℃.
14. The unit is pressure tested more than twice before leaving the factory, with the test pressure at 2.8Mp.
15. The turbine unit can be produced in a complete set without the need to purchase other supporting equipment.