FRP fan refers to the fan made of FRP, whose appearance and size are exactly the same as that of steel fan, except that the shell and impeller are made of FRP, which is characterized by corrosion resistance, acid and alkali resistance. It belongs to a kind of anti-corrosion fan.

FRP fan is suitable for ventilation and exhaust in office buildings, shopping malls, cinemas, hospitals, factories, enterprise workshops, basements and other places. The delivered gas shall be gas without viscous substances, and the gas temperature shall not be greater than 80 ℃, and the mass of the medium shall not be greater than 150mg / M3.

Installation and maintenance of FRP fan

1. Improper mechanical installation, misplaced parts and large preload

2. Poor alignment of shafting

3. Improper adjustment of machine geometric parameters (such as fit clearance, interference and relative position)

4. The pipeline stress is large, and the dynamic characteristics and installation accuracy of the machine are changed under the working state

5. The rotor is placed improperly for a long time, which changes the dynamic balance accuracy, and is not repaired according to the regulations, which destroys the original matching nature and accuracy of the machine

The specialized manufacturers of FRP fans are small, which is because the demand for FRP fans in China is very small. Why is its demand small? Because the cost of FRP fan is higher than that of steel fan, FRP fan will not be selected in ordinary ventilation environment, and the places with acid-base gas are limited compared with those with ordinary environment, so the demand for FRP fan is less than that of steel fan.

Since 2008, the production of FRP axial flow fan in China has changed from manual to mechanized. Some manufacturers have begun to use four column hydraulic press to produce FRP axial flow fan shell. The produced fan is called molded FRP axial flow fan. By 2012, the four column hydraulic press has been used to produce FRP roof fan shell and rain cap. The produced fan is called molded FRP roof fan. The mechanized batch production of FRP fan greatly improves the production efficiency, reduces human and material resources and reduces the production cost.

Application case

Special FRP fan

Use classification

Glass fiber reinforced plastic fan for tail gas of chemical plant, glass fiber reinforced plastic fan for potassium sulfate fertilizer, glass fiber reinforced plastic fan for printing and dyeing industry and glass fiber reinforced plastic fan for titanium dioxide powder industry

Media classification

Salt acid FRP fan, sulfuric acid FRP fan, chromic acid FRP fan and other multi-media FRP fans

pressure

Low Pressure FRP fan, medium pressure FRP fan, high pressure FRP fan

1、 FRP anti-corrosion fan

First, check whether the axis of the FRP anti-corrosion fan impeller is tortuous, and then check whether the fan inlet clock and the impeller are worn. Axial FRP anti-corrosion fan, check whether the coupling is displaced or abraded, handle and adjust the FRP anti-corrosion fan motor or replace the coupling. Check whether there are too many crystals on the impeller of FRP anti-corrosion fan, and handle and clean the crystals on the impeller. Finally, check whether the impeller is out of balance, check whether the foundation channel of FRP anti-corrosion fan is solid, and deal with the strength and level of the foundation channel.

2、 Loud noise

Check whether the FRP anti-corrosion fan bearing is damaged, and handle and replace the FRP anti-corrosion fan bearing. Check the abrasion between the FRP anti-corrosion fan inlet clock and the fan impeller, deal with and repair the inlet clock or move the bearing seat backward.

Check whether the air duct makes noise, whether there is co vibration, whether the wall of the air duct is too thin, and add support frame to the air duct or add sound insulation cotton to the air duct. Check whether the FRP anti-corrosion fan absorbs foreign matters and whether the air duct is blocked. If there are foreign matters blocked, it must be connected in time.

3、 Current overload

Check whether the FRP anti-corrosion fan exceeds the additional speed, deal with and adjust it to the additional speed, detect the fault of model selection due to excessive resistance of the on-site system, and deal with the replacement model. Check whether the investigation hole or window of the on-site air duct is closed, resulting in the current overload of the FRP anti-corrosion fan motor, and deal with the closed window and investigation hole. Check whether the working direction of FRP impeller is correct. In addition, remember to check whether the ammeter you use meets the specifications.

4、 The air volume of FRP anti-corrosion fan is getting smaller and smaller

Check whether the system pressure conforms to the planning parameters, check whether the air duct of FRP anti-corrosion fan is leaking, check the air duct regularly and timely, and deal with it accordingly. Then adjust the FRP anti-corrosion fan belt according to the on-site system pressure to fit the function of the on-site fan. Finally, check whether the FRP anti-corrosion fan belt is damaged and loose, and deal with it quickly, adjust the belt tightness or replace the belt.

FRP fan is a device that uses the principle of fan to transport gas. It is not allowed to contain viscous substances, dust and hard particles ≤ 150mg / m3, gas temperature ≤ 60 ℃ and relative humidity ≤ 100%. This series of fans have the characteristics of high strength, light weight, not easy to aging, good corrosion resistance, low noise and stable operation. FRP centrifugal fan is a fan made of FRP, also known as FRP centrifugal fan. The gas conveyed by FRP fan is mainly air, acid gas, alkaline gas and corrosive gas. Application place: it is suitable for temperature exhaust, air conditioning, acid mist purification and transportation of acid gas or atmospheric corrosion resistance in chemical, metallurgical, light textile, food, medicine, petroleum and other industries. It can be used as input gas or output gas. It is especially suitable for matching with various types of waste gas purification towers. It is an ideal auxiliary equipment for waste gas purification tower.