Fan radial powder VRP 3, 15, Volynskaya region.

Fan radial dusty VRP 3.15

VRP dust fans belong to low- and medium-pressure fans and are intended for the movement of air and other gas mixtures, the aggressiveness of which in relation to carbon steels of ordinary quality is not higher than that of air, with a temperature of up to 800 C, not containing sticky substances, fibrous materials, with a content of dust and other solid impurities of no more than 100 g/m3.

Dust VRP fans belong to low and medium pressure fans and are intended for moving air and other gas mixtures, the aggressiveness of which in relation to carbon steels of ordinary quality is not higher than the aggressiveness of air, with a temperature of up to 80 0 C, not containing sticky substances, fibrous materials, with a content of dust and other solid impurities of no more than 100 g/m3.

APPLICATION
In the systems of dust cleaning units for pneumatic grain transport and in the production ofgroats, for the removal of wood shavings and sawdust, extraction of metal dust from machines, removal of dust and slag during welding production, dusty air extraction systems during the production of cement and reinforced concrete structures. When choosing a fan for given aerodynamic parameters, it is necessary to take into account that the speed of the flow in the inlet and outlet sections of the fan is not less than the speed of transported particles.

WORKING PRINCIPLE
Air due to the transfer of energy to itworking wheel enters it, is deflected by 900 in the radial direction (centrifugal force), enters the snail of the spiral housing, moves along it and exits the fan through the outlet flange.

CONSTRUCTIVE EXECUTION
It is made of one-way suction in version 1 according to GOST 5976 - the impeller is closed by the casing and is mounted directly on the motor shaft. Dust fans are made of one type VRP.1 and five sizes: VRP-3,15; VRP-4; VRP-5; GRP-6,3, GRP-8

FAN DESIGN
The dust fan has a simplified design that ensures reliable operation when various materials pass through it. The fan consists of the following main components: a spiral housing, an impeller, a cylindrical inlet pipe, a frame, and an electric motor.(//tractor-service.com)
- the spiral casing of the fan has a welded construction (there are no air leaks) made of carbon steel. The body of the left or right direction of rotation is made rotary, ensuring the exit of air from the fan in the directions according to GOST 5976, with the exception of Pr1800 and L1800 (on the rear wall there are bolts welded around the circumference, which allow it to be installed in any position relative to the rack on which it is mounted, with a step along the corner equal to the step along the bolts). There is no language.
- the impeller is made of carbon steel by welding, diameter: 315; 400; 500; 630 mm along the outer edges of the blades. It has 8 straight radially welded blades. There are modifications with intermediate diameters that differ from the nominal diameter Dn by 5% and 10%. Dk/ Dn = 0.9; 0.95; 1.05; 1.1 The hub is rigidly connected to the rear disc. Dynamically balanced.
- three-phase asynchronous motors with a short-circuited rotor of the AIR series (380V/50Hz) are used. Degree of protection IP 54 according to GOST 14254. The engine is installed on the frame. It is allowed to attach the electric motor directly to the fan housing.

TERMS OF OPERATION
The type of climatic performance is UHL, category 2 according to GOST 15150. When ensuring the protection of fans from atmospheric influences, it is allowed to use fans in category 1 according to GOST 15150. The temperature of the moving medium is not higher than 80 0 C. The mean square value of the emission velocity from external sources in the places where the fans are installed should not exceed 2 mm/s.

Characteristics of the VRP dust fan #3,15

1.5 kW/1500 rpm
2.2 kW/3000 rpm
3.0 kW/3000 rpm

1.4-2.47 Productivity, thousand, m3/hour

1120-1380 Pressure, Pa

Phone 050 50 200 19