When purchasing FRP acid and alkali resistant fans, you should choose high-quality fans, and first determine the air flow, pressure and density, which are the three elements in the fan selection process.
购买玻璃钢耐酸碱风机时，应选择优质风机，并首先确定气流、压力和密度，这是风机选择过程中的三个要素。
Flow rate: If the system requires gas mass flow rate, it is necessary to convert the gas mass flow rate to the volume flow rate under the standard state of the FRP fan.
流量：如果系统需要气体质量流量，则需要将气体质量流量转换为玻璃钢风机标准状态下的体积流量。
If the system requires the volume flow of gas, the volume flow in the standard state of the fan is the same as under operating conditions.
如果系统需要气体的体积流量，则风扇标准状态下的体积流量与工作条件下的相同。
Density: If the density is not determined, the density of the working gas should be calculated or converted according to the working environment of the FRP acid and alkali resistant fan, such as altitude, local air pressure, working temperature and gas density.
一、密度：如果密度未确定，工作气体的密度应根据玻璃钢耐酸碱风机的工作环境，如海拔、当地气压、工作温度和气体密度进行计算或换算。
When cleaning, note:
清洁时，注意：
1, when cleaning the oil wall outside the cooling water pipe, do not use acid and alkali.
1、清洗冷却水管外的油壁时，不要使用酸和碱。
You can clean the oil wall with hot water.
你可以用热水清洗油壁。
2, Fiberglass acid and alkali resistant fan equipment shall not be wiped with wet cloth.
2、玻璃钢耐酸碱风机设备内部不得用湿布擦拭。
If water drops onto the equipment, it will cause adverse effects.
如果水滴落到设备中，会造成不良影响。
So wipe it down with a clean cotton cloth.
所以用干净的棉布擦拭。
The cotton cloth can be moistened slightly to clean the vortex air pump.
棉布可以稍湿以清洁涡流空气泵。
3. After the fiberglass acid and alkali resistant fan is cleaned, dry the outer surface of the equipment with a dry rag to keep it dry and prevent the fan from being damp.
3、玻璃钢耐酸碱风机清洁后，用干抹布擦干设备外表面，保持干燥，防止风机受潮。
In order to prevent faults in the cleaning operation, the correct cleaning method should be taken and the FRP fan should be cleaned regularly.
为了防止清洁操作中出现故障，应采取正确的清洁方法，并定期清洁玻璃钢风机。