Large mobile fan
Mobile Ventilation Units (MWD) are (colloquially called tunnel fans) from the Fire Department to ventilate tunnels , used or large-volume buildings to the fire smoke to dissipate as quickly as possible and heat. Powerful fans are used , which are mounted on trailers or truck chassis.
technology
Combustion and electric motors or hydraulic units are used to drive the fans . The fan housings are made of painted sheet steel or GRP , depending on the model . Aluminum or plastic propellers are used as propellers .
Depending on the device, the fan output is between 80,000 m³ / h and 213,000 m³ / h.
Users
Users of large mobile fans are primarily fire brigades, which are responsible for the safety of tunnel systems, as well as plant fire brigades , which have to ventilate large-volume halls in order to remove smoke or other gases. MGV users in Germany include the Munich fire brigade , the Heidelberg fire brigade and plant fire brigades from various automobile manufacturers (Audi, BMW, Daimler, Volkswagen).
Individual evidence
- ↑ Large fan equipment trolley - GW GL ( Memento of the original from June 2, 2011 in the Internet Archive ) Info: The archive link was automatically inserted and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. , Homepage of the Munich fire department
- ↑ Machine smoldering fire at Henkel ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. , October 19, 2009, Fw Heidelberg, Dept. Wieblingen
