Looking for explosion-proof blowers
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A foreign client has asked me to find some explosion-proof blowers in China. The specifications are as follows: Two units with a maximum output power of 2.5 kW, capable of supplying 1600 m³/h of air at a pressure of 20 mbar; two units with a maximum output power of 1.5 kW, capable of supplying 1000 m³/h of air at the same pressure. Both domestic and imported blowers are acceptable; it would be best if they are manufactured by foreign companies in China. I’m not familiar with the blower industry at all, so I hope those who are knowledgeable in this field can offer some advice
It’s sufficient to use an explosion-proof motor; contact the fan manufacturer and ask them to provide an explosion-proof motor.
Are there any recommended fan manufacturers? I found quite a few results on Baidu, but I’m not sure what the reputation is like I also asked about this before, and I was told that for domestically produced fans, the air volume should be 1600, and the power consumption should be in the range of ten-odd kilowatts. I’m not sure if this is correct
For explosion-proof motors, the blades of fans should be made of cast aluminum or aluminum alloy. We usually use domestic brands, such as Shenyang Blowers and Shaanxi Blowers; among domestic options, these are all quite good
I forgot – what is the required explosion protection rating, and the motor used must meet those requirements
What was said on the second floor makes sense; an explosion-proof motor is sufficient. In China, well-known explosion-proof motor manufacturers include those in Jiamusi and Nanyang – both produce high-quality motors.
This post was last edited by modekiller on 2009-9-17 at 22:47. EEX-e-II-T3 – that’s how foreigners express it; it seems to mean: explosion-proof, enhanced safety type, for category II gases, with a temperature limit of no more than 200 degrees. I found this information on my own; I’m not sure if it’s correct. If any fellow from Sichuan knows the corresponding Chinese term, please let me know. Thank you!
To summarize: Fan (with cast aluminum or aluminum alloy blades, produced by Shenyang Blowers or Shaanxi Blowers) + explosion-proof motor (from Jiamusi or Nanyang) = OK! I’m not sure if it’s right? Is there anyone else who has something to add?
Regarding this issue, it should be stated as follows: 1. First, specify the environmental conditions – whether it is a safe area or a hazardous area; if it is a hazardous area, indicate the classification level, such as Zone 2, IIB, T3 according to IEC standards. 2. Next, choose between Shenggu or Shaanxi Blower models. The blowers themselves do not have an issue related to being explosion-proof or not, but the instruments used must be of the explosion-proof type, such as E* intrinsically safe or Exd flameproof types； 3. The motors can be Exn spark-proof, Exe increased safety, Exp positive pressure ventilation, or Exd explosion-proof types from Nanyang or Jiamusi, among others. . .