Fans ВНЖ
Fans ВНЖ is a heavy-duty corrosion-resistant equipment of high and medium pressure. Its spiral body is a snail – it has a removable quarter and 32 curved forward blades. The flowing part of the fan in contact with an aggressive medium is made of high-strength alloys such as 10Х17Н13М2Т, 06ХН28МДТ, etc. A stainless fan is manufactured in the right and left direction of rotation.
Fan ВНЖ 15.5 and 13.5 have found their application in the production of mineral fertilizers. They are included in the complete set of production technological lines and move aggressive non-explosive gases with a temperature below 200 ° C. The solids content in the transported medium should not exceed 1 g / m?.
Centrifugal machines ВНЖ work on the principle of unilateral suction. His snail can change the angle of rotation within 0 … 270 degrees, every 15 degrees.
The operation of stainless fans is possible in a temperate climate with the first category of accommodation. The outside temperature can fluctuate between -40 … +40 ° C. The installation location of the fan must be protected from high vibration rates.
Specifications of fans ВНЖ
Size fan | Capacity, m3/s | Full pressure, Pa | Maximum efficiency, not less, % | Rotational speed, rpm | Electric motor | Weight without electro motor, kg | |||
Size | Power, kWt | Rotational speed, rpm | Voltage, V | ||||||
ВНЖ?13,5 | 36 000 | 1 765 | 72 | 600 | АИР315S10 | 55 | 600 | 380/660 | 1 780 |
45 000 | 2 815 | 750 | А315М8 | 110 | 750 | 380/660 | |||
60 000 | 4 905 | 1 000 | А355SMB6 | 200 | 1 000 | 380/660 | |||
ВНЖ?15,5 | 54 000 | 2 355 | 72 | 600 | АИР355S10 | 90 | 600 | 380/660 | 2 070 |
68 000 | 3 680 | 750 | А355МB8 | 160 | 750 | 380/660 | |||
90 000 | 6 520 | 1 000 | ДАЗО4?400У?6МУ1 | 400 | 1 000 | 6 000 |
The characteristics are given in the mode of maximum efficiency for the moving medium with parameters: Bar=760 mm Hg. art. and t=30°C.
Dimensions and connection sizes of fans ВНЖ
Diagram of the turns of the housings of the blower fans single inlet.
Size machine | ? | Dimension, mm | ||||||||||||
h1 | L1 | L2 | L4 | D | D1 | D2 | d | d2 | A | a | B | b | ||
ВНЖ?13,5 | 0°?30° | 1 350 | 650 | 650 | 620 | 1 350 | 975 | 1 020 | 14 | 14 | 2 218 | 672 | 2 280 | 863 |
45°?105° | 1 200 | 650 | 650 | 620 | ||||||||||
135°?240° | 1 150 | 650 | 650 | 620 | ||||||||||
270° | 1 150 | 1 591 | 650 | 620 | ||||||||||
? | Dimension, mm | N | N2 | |||||||||||
H | h | h2 | C | E | T1 | T2 | L3 | L5 | L6 | L7 | ||||
0°?270° | 1 930 | 790 | 555 | 688 | 508 | 790 | 600 | 620 | 275 | 700 | 620 | 16 | 24 | |
ВНЖ?15,5 | 0°?30° | 1 600 | 650 | 650 | 700 | 1 550 | 1 100 | 1 175 | 14 | 14 | 2 306 | 747 | 2 614 | 980 |
45°?105° | 1 500 | 650 | 650 | 700 | ||||||||||
135°?240° | 1 300 | 650 | 650 | 700 | ||||||||||
270° | 1 300 | 1 800 | 800 | 700 | ||||||||||
? | Dimension, mm | N | N2 | |||||||||||
H | h | h2 | C | E | T1 | T2 | L3 | L5 | L6 | L7 | ||||
0°?270° | 2 230 | 900 | 555 | 800 | 590 | 882 | 664 | 700 | 270 | 700 | 620 | 16 | 24 |
Aerodynamic characteristics of fans ВНЖ
ВНЖ-13,5
ВНЖ-15,5
Acoustic characteristics of fans ВНЖ
Size fan | Rotational speed, rpm | Measuring area | Values of sound power levels Lpi, dB in octave bands f, Hz | LpA, dBА | ||||||
125 | 250 | 500 | 1000 | 2000 | 4000 | 8000 | ||||
ВНЖ?13,5 | 600 | Discharge | 104 | 108 | 109 | 107 | 105 | 102 | 98 | 112 |
Suction | 99 | 103 | 104 | 102 | 100 | 97 | 93 | 107 | ||
Around the hull | 94 | 97 | 96 | 93 | 92 | 89 | 87 | 99 | ||
750 | Discharge | 109 | 113 | 114 | 112 | 110 | 107 | 103 | 117 | |
Suction | 104 | 108 | 109 | 107 | 105 | 102 | 98 | 112 | ||
Around the hull | 99 | 102 | 100 | 98 | 97 | 94 | 92 | 104 | ||
1 000 | Discharge | 116 | 120 | 121 | 119 | 117 | 114 | 110 | 124 | |
Suction | 111 | 115 | 116 | 114 | 112 | 110 | 105 | 119 | ||
Around the hull | 105 | 109 | 107 | 106 | 104 | 101 | 99 | 111 | ||
ВНЖ?15,5 | 600 | Discharge | 112 | 113 | 110 | 109 | 106 | 101 | 97 | 114 |
Suction | 107 | 109 | 107 | 105 | 102 | 98 | 94 | 109 | ||
Around the hull | 103 | 104 | 100 | 99 | 95 | 89 | 86 | 104 | ||
750 | Discharge | 114 | 118 | 119 | 117 | 115 | 112 | 108 | 122 | |
Suction | 109 | 113 | 114 | 112 | 110 | 107 | 103 | 117 | ||
Around the hull | 99 | 102 | 103 | 103 | 103 | 102 | 99 | 97 | ||
1 000 | Discharge | 121 | 125 | 126 | 124 | 122 | 119 | 115 | 129 | |
Suction | 116 | 120 | 121 | 119 | 117 | 114 | 110 | 124 | ||
Around the hull | 106 | 109 | 110 | 110 | 109 | 106 | 104 | 115 |
NOTE: Acoustic characteristics are given for conditions: the axial guide unit is fully open, Bar=760 mm Hg. art., the temperature of the moving medium t=30°C.