Aeration fan, East China fan, oxidation fan

< Black body d aeration fan, East China fan oxidation fan
< Black body d< Sewage treatment aeration fan. Problems with the flow velocity of the aeration blower sewage treatment fan pipeline. The pipeline flow velocity should be controlled at/below. The faster the flow velocity, the greater the resistance of the pipe network, which may cause blower surge and increase the blower load.
． The quality of aeration blowers, sewage treatment fans and aerators. In the domestic market, there are many varieties of aerators with varying quality and a wide range of prices. Due to the lack of relevant industry standards, workshop-style production methods are prevalent. For example, for rubber aerators, the raw materials and ingredients used each time are different, resulting in unstable product quality. For example: If too much carbon black is added to the rubber sheet, the resistance will increase. If the carbon black is not added enough, the rubber sheet will be too soft and it will easily break. There are even cases where recycled rubber is used. Therefore, the quality of non-industrially produced products is difficult to control. If the aerator release amount (the release amount is related to water depth, pressure, flow rate, and aerator film quality) cannot meet the process requirements, causing the blower flow release rate to be %, surge will occur and the fan pressure will increase.
． The use of aeration blower sewage treatment fan check valves. The hardness of the tension springs in the check valves produced by different companies is different, and the local resistance loss is also different. Surge can also occur if the overall duct resistance loss is greater than the blower outlet pressure. When the blower is stopped, the inlet butterfly valve needs to be closed first and then the outlet butterfly valve. This can completely avoid the problem of water pouring and does not require the installation of an outlet check valve. Adding a check valve will increase resistance loss and increase equipment costs and operating expenses.
． The change of the ambient temperature of the aeration blower sewage treatment fan is based on the fan industry standard. The design temperature of the blower is ℃. Every time the temperature increases, the outlet pressure will decrease by about 10℃. For example, when the temperature is ℃ in summer, the outlet pressure will drop. Based on the climate characteristics of high temperatures in summer in most areas of our country, our company increases the design temperature of the blower inlet end to ℃, that is, the outlet end pressure is higher than the national standard at the same shaft power. When selecting a blower according to the specific conditions of the use site, the impact of temperature changes on the blower outlet pressure must also be considered. When the fan is used at the daily extreme temperature of ℃, press /℃ to compensate the air inlet pressure.