Address: Xiqingtang complex building, Yuhuan, China
Tel:+86-576-87477851
E-MAIL:whf@zjhfhb.com| 1, negative pressure fan is the type of fan, which belongs to axial flow fan, because it is mainly used in negative pressure ventilation cooling engineering, which is called negative pressure fan. Negative pressure ventilation cooling project contains two aspects of ventilation and cooling meaning, ventilation and cooling problems at the same time to solve. Negative pressure air blower has the characteristics of large volume, large air duct, super large diameter, large exhaust air volume, ultra low energy consumption, low speed, low noise and so on. 2, negative pressure fan ventilation principle The negative pressure air exhaust air causes the indoor air pressure to be reduced, the indoor air becomes thin, and a negative pressure area is formed. In the practical application of industrial plant, the negative pressure fan is installed in one side of the factory, the air inlet is the other side of the factory building, the air is formed by the air inlet to the negative pressure air blower. In this process, near the negative pressure fan near the doors and windows to keep close, forced air from the air inlet side of the flow of compensation into the shop. Air is discharged into the workshop, the orderly flow of the air inlet, flow from the workshop, by the negative pressure fan discharge workshop. Ventilation is thorough and efficient, and the ventilation rate can be as high as 99%. Through the specific engineering design, according to the needs of the design of ventilation speed and wind speed, high heat air, harmful gases, dust smoke can quickly discharge the workshop, any ventilation problems can be solved once and for all. Ventilation can be achieved in a few seconds from the start of the fan. Plant cooling equipment cooling principle, ventilation cooling principle: With the circulation water pump, the water is pumped out of the water tank, and the water distribution system is evenly sprayed on the wet curtain. Negative pressure is generated in the air conditioner running time of the environmental protection air conditioner, and the air outside the machine enters the cavity through a wet curtain with strong water absorption. Wet curtain of water evaporation under the adiabatic condition, take a large amount of latent heat, purification, cooling, oxygen enriched air is fan into the workshop, through continuous convection, thus making workshop and achieve the refrigeration effect. Energy saving and environmental protection air conditioner core component direct evaporation type heat exchanger". Also known as wet curtain, after special treatment of 5090 type "corrugated fiber paper laminated compound" is Swedish patent invention, use is made of, its characteristics are: good water absorption performance and ventilation performance; firm texture, water immersion and the variant; corrosion. The normal service life can be more than 5 years; the actual heat transfer area is 100 times of the surface area, and can achieve the cooling effect of below 4 degrees C -8. Energy-saving environmental protection air conditioner for use in open and semi open environment, be able to direct transmission natural wind and the delivery of cool breeze. Outdoor fresh air after energy-saving environmental protection air conditioner filter, after cooling to the room continuously large conveying, indoor with odor, dust and cloudy hot air is discharged to the outdoors and colleagues both ventilation, cooling and increase the air containing oxygen and many other effects, especially for use in high temperature and crowded places. |
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