How to prevent frosting on the protective mesh at the inlet of outdoor blowers in winter in the north
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As the title suggests, during winter in the north, a thick layer of frost forms on the protective mesh at the inlet of the outdoor boiler blower, which affects the amount of air supplied to the boiler. Are there any simple and effective ways to prevent this phenomenon?
The simplest solution is to add an electric heating device~~
It’s frost forming on the protective net; how can I install an electric heater on it? What kind of electric heating element should be used?
Use this rope-type electric heater, but be careful about the area of the air intake~~
This post was last edited by wangjh0814 on 2018-8-30 at 16:14. It was posted on Ameba on 2018-8-30 at 13:37. Sorry, please don’t think I’m annoying! I’d like to ask again: is it a rope heater wrapped into the shape of a protective net? Still wrapped around the protective net? The fan inlet protection mesh is shown in the image
Option 1: Wind it around the inlet pipe； Option 2: Place several strips across or vertically on the filter screen, but the covering area should be less than 20%; otherwise, it will affect the air volume and air pressure~~
It is recommended to add electric heating (such as electric tracing for dedicated pipelines)
Just add a section of cylinder to the inlet; the filter screen can be placed inside, and no other energy-consuming measures are required.
In our factory, there was once an issue where the filters of the blowers froze and became clogged, resulting in low air pressure that triggered an interlock mechanism causing the entire plant to shut down. Later, a grid made of thin steel pipes through which low-pressure steam flowed was installed at the location of the inlet filters, directed outward, which solved this problem.
Are there any photos of the application in use? Thank you!