产品的简单详细描述三大结构玻璃钢净化塔在气液逆流下运行。 Simple and detailed description of glass fiber reinforced plastic purification tower
products Three major structure glass fiber reinforced plastic purification towers operate under the countercurrent of gas and liquid. The extracted exhaust gas enters the tower from the tower bottom inlet, passes through the packing layer from the bottom up, and is finally discharged from the tower pipe outlet by the anticorrosive fan. The neutralization liquid flows down to the tower bottom along the surface of the packing layer through the pipe top, and passes through the pipeline. Discharged from the outside of the tower and circulated by the anti-corrosion circulating pump, the packing layer is continuously exposed to rising exhaust gas and falling absorbent, which makes the solute concentration rising airflow lower and lower. When the tower top meets the absorption requirements, the rising airflow will be discharged out of the tower. , The concentration of the medium in the liquid is getting lower and lower, reaching the process requirements of the bottom of the tower, and discharged outside the tower.
The tower material is made of corrosion-resistant PRP, which is resistant to aging and has a good appearance.
2. Spray system
Automatic sprinkler system consists of pipe (line) sprinkler head and sprinkler head. Pipe (line) and sprinkler head are welded with formed PVC pipe. The nozzle adopts multi-layer spiral non-clogging nozzle. The material is PVC or PP. The nozzle is designed and manufactured according to AVK standard. It has the characteristics of large flow, uniform spraying, large spraying area, and no blockage.
three. Fill up
The packing in the tower can provide enough surface area to promote sufficient gas contact: large specific surface area; high mass transfer rate; good temperature and wettability, which is favorable for uniform gas-liquid distribution; good porosity, gas-liquid throughput and air resistance High mechanical strength, corrosion resistance and easy cleaning. Not easily broken.
In the operation of FRP purification towers, leaks are prone to occur. If it is running, it can only be processed temporarily. Anticorrosive glass cloth and resin treatment are recommended. When the unit is stopped, repair welding should be used to prevent the leakage point from becoming too large. The anticorrosion of FRP purification tower is very important.
Installation characteristics of FRP purification tower
1. For the installation surface of the polyacrylic acid mist purifier foundation, it should be ensured that the bolts at the bottom of the purification tower should be fixed on the buried steel plate of the foundation on the same horizontal plane.
2. When installing a polypropylene fan, it is necessary to prevent debris from falling into the fan. After the purification tower is installed, the dirt in the tower must be removed before commissioning. Generally, the use of open flames is strictly prohibited during installation and maintenance due to the flammability of polypropylene. Chief Engineer.
three. The concentration of NaOH solution in the tank should be kept in the range of 8-16%. When the NaOH concentration is lower than 2%, a NaOH solution must be added or replaced with a new NaOH solution. The waste liquid in the tank should be replaced according to the actual use situation.
4. When the polypropylene fan is installed indoors, the fan motor should be protected against rain, and the metal support of the polypropylene purification tower should be treated at least twice a year.
The working principle of the glass fiber reinforced plastic purification tower: The glass fiber reinforced plastic purification tower uses sodium hydroxide solution as the absorption and neutralization liquid to purify the acid mist exhaust gas, presses or sucks the gas into the intake section through the centrifugal fan, and then enters the first filter layer upward, The discharged neutralizing liquid reacts. The first nozzle. The absorbed exhaust gas continues to flow upward to the second filter layer, contacts the neutralizing liquid ejected from the second nozzle, and then reacts again. It is then discharged into the atmosphere through a vortex plate through a hood and an exhaust pipe or a fan.