Today to introduce to you: negative pressure fan structure, application and advantages

Negative pressure fan is a machine that uses the cooling principle of air convection and negative pressure ventilation. It inhales fresh air naturally from the opposite of the installation site - the door or window, and quickly forces indoor sultry gas out of the room. Any poor ventilation can be improved.

Product characteristics

The machine adopts CAD/CAM design, with low investment cost, high air volume, low noise, low energy consumption, stable operation, long life, high efficiency, shutters automatically closed to dust, waterproof, beautiful and generous; It is the best choice for cooling and ventilation in modern workshop. Environmental protection and energy saving negative pressure fans will become the mainstream of the ventilation and cooling equipment market.

Application introduction

1, for ventilation: installed outside the window of the workshop, generally choose the lower tuyere, out of the air, exhaust odor gas; General chemical plant and other applications.

Negative pressure fan

2, with the use of wet curtain: used as a workshop cooling hot summer, no matter how hot your workshop, wet curtain - negative pressure fan system can let your workshop temperature down to about 30C, and there is a certain humidity. 3, negative pressure fan applicable scope :A, suitable for high temperature or odor workshop: such as heat treatment plant, casting factory, plastic factory, aluminum profile factory, shoe factory, leather factory, electroplating factory, all kinds of chemical plants. B, suitable for labor-intensive enterprises: such as clothing factories, all kinds of assembly workshops, Internet cafes. C. Ventilation and cooling of horticultural greenhouse and cooling of livestock pasture. D, especially suitable for cooling and humidity places. Such as cotton mill, wool mill, linen mill, weaving factory, chemical fiber mill, warp knitting factory, bomb factory, knitting factory, silk factory, socks factory and other textile factories. E, suitable for warehousing and logistics field 4, for exhaust fans: general exhaust fans (commonly known as Yanggu fan) efficiency is poor, a fan blows less than a few people, negative pressure fan is not, whether it is used on the ground or hanging in the air. Generally 1000 square meters of workshop use 4, that is, the room is full of wind blowing effect.

structure

Aluminum shell motor for IP54 and F grade insulated fan produced by advanced foreign technology. Underphase overload protection, long service life, smooth operation, low noise. Using the so-called 500 years of non-decomposition FRP(glass fiber reinforced plastic) for the fan shell material, with acid and alkali resistance, corrosion resistance, no rust, long service life and other characteristics, at the same time to reduce the machine due to metal material resonance phenomenon. Cooling principle of negative pressure fan: Negative pressure fan is the use of air convection, negative pressure ventilation cooling principle, from the installation site of the opposite - the door or window natural suction of fresh air, indoor muginess gas quickly forced out of the outdoor, any poor ventilation problems can be improved, cooling and ventilation effect can reach 90%-97%. Negative pressure fan has strong advantages :1. Less investment and low energy consumption. The same refrigeration rate, the one-time investment is about one sixth of the air conditioning, the operating cost is about one tenth of the air conditioning; 2, the cooling effect is significant, can reduce the temperature to about 28 degrees, consistent with the temperature of the human body, if with the water well as the water tank source effect is better, can compare to the effect of air conditioning; 3, fresh air, moist, air cleanliness can reach 99%.

Installation attention

When installing the negative pressure fan, the wall on this side of the fan must be sealed. Especially around the fan can not have a gap. The best way to install a negative pressure fan is to close the wall on this side of the fan and the nearby doors and Windows, and open the doors and Windows on the wall opposite the fan to ensure that the air flows in a straight line. The installation of negative pressure fan is a very important project, which has a great impact on the use effect of negative pressure fan in the future. Attention must be paid to it in the whole process of installation. 1. Before installing the negative pressure fan, carefully check whether the negative pressure fan is intact, whether the fastener bolts are loose or fall off, and whether the impeller collids with the wind hood. Carefully check whether the fan blade or louver is deformed or damaged during transportation. 2. When selecting the air outlet environment for installation, it should be noted that there should not be too large obstacles within 2.5-3M opposite the air outlet. 1, stable installation: when installing the negative pressure fan, attention should be paid to the horizontal position of the fan, and the negative pressure fan and the foundation plane should be stabilized. The motor shall not tilt after installation. 2. When installing the negative pressure fan, the adjusting bolt of the motor should be in a convenient position. To facilitate the use of adjusting belt tightness. 3. When installing the support of the negative pressure fan, it is necessary to make the support stable and level with the foundation plane. If necessary, the Angle iron is installed beside the negative pressure fan for reinforcement. 4. After the installation of the negative pressure fan, it is necessary to check the tightness around it. If there is a gap, the sun can be used to seal or glass glue. 1. After installation, check whether there are left tools and sundries inside the negative pressure fan. Move the fan blade by hand or lever to check whether there is too tight or rubbing phenomenon, and whether there is no abnormal phenomenon of objects that prevent rotation, before the test run. 2. If there is vibration of negative pressure fan or abnormal sound of "buzz" or other abnormal phenomena in operation, stop the machine for inspection, and then start the machine after repair.