At each plant, manufacturing, plant or onIn any other industrial facility, radial centrifugal fans are installed and operate, which are simply called "snails" due to the shape of the hull. They are included in the system of almost any industrial exhaust. Depending on the performance, they are of low, medium or high pressure and provide performance from 600 m3 / hour to 30,000 m3 / hour.
Russian fans(manufactured according to GOST or TU) are marked, as a rule, BP (industrial radial fan) or VC (centrifugal fan). This is the same thing, but different factories put their own labeling. In order to choose a fan for the air movement system, it is necessary to know the required capacity and pressure. Depending on this, a low, medium or high pressure radial industrial fan is selected. Also, the number of the centrifugal fan (it is the diameter of the impeller) and the power of the induction motor will depend on these parameters. All these parameters and specifications can be viewed in this catalog of radial fans.
If we are talking about moving the fanwood chips, sawdust, and metal and cement dust particles, then, of course, choose a centrifugal dust fan TDC, GRP, VR140. Depending on the nature of the particles being transported and the operating environment, centrifugal radial fans can be made of carbon steel, corrosion-resistant stainless steel, explosion-proof aluminum or brass. The principle of selection of the dust fan is the same, you need to know the required parameters - performance and pressure. Often for the selection of a radial fan using aerodynamic characteristics. Dust industrial fans are most often manufactured according to scheme 5, when the electric motor is connected to the impeller of the fan through a belt drive. Conventional centrifugal fans CC and BP standard go according to scheme 1, when the asynchronous electric motor is directly mounted on the impeller.
If smoke is required, then the choicestops on the fans of smoke removal. They can be in the form of ordinary "snails" or for installation on the roof. Roof fans operate without a complicated ventilation system, in which, as a rule, a centrifugal fan is turned on, they are marked with WRC or WRC. For operation, the roof fan is simply installed on the roof of a building or production hall. Roof fans can be manufactured with discharge upwards or sideways.
Generally speaking, the choice of industrial fanproduced by the designer at the stage of rendering the entire ventilation system of the object in the process of engineering design. It was then that the optimal variant of the industrial fan is selected on the basis of the output parameters, its overall and connecting dimensions, the specifics of operation and the characteristics of the moving environment.
When replacing an old fan, you simply need to rewrite the information about it not on the nameplate (metal plate located on the case) or in the passport of the product and contact the company selling fans.Difficulties may arise only if the plates are not on the centrifugal fan (erased, unreadable or knocked down for some reason), and the passport is also absent, then you will have to carry out various measurements, such as impeller diameter, width, number of blades, size inlet and outlet nozzles to select from the catalog of radial fans suitable.
