Instruction Manual

ManualsBrandsContinental Industrie ManualsFansModel - 031

Values, dimensions and reference in this brochure are approximate and intended as guide only, not for construction and are subject to change without notice

DETAILED ENGINEERING DESCRIPTION - CONTINENTAL INDUSTRIE

DEB031EN – 04/2010

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DETAILED ENGINEERING DESCRIPTION AND MECHANICAL

FEATURES OF CONTINENTAL INDUSTRIE MULTISTAGE CENTRIFUGAL

BLOWER MODEL 031A

I - BLOWER HOUSING

The centrifugal blower housing consists of an inlet head with special feature to direct air to

inlet of first impeller and outlet head of special design to eliminate friction and multiple

intermediate sections. These parts are made in cast iron EN-GJL-250 (ASTM A48-35B) (for

I/O heads) & cast aluminium (for intermediate sections) according to rigid Continental

Industrie specifications, extreme care to be exercised in assembly of interlocking cast

aluminium intermediate sections and annular diffusers (baffles).

The entire assembly is securely held together actually with multiple tension rods which bind

the entire housing into a solid integral unit.

1.0 Inlet head

1.1 Flange connection DN 150, PN 10 (6”)

1.2 Cast iron EN-GJL-250 (ASTM A48-35B)

1.3 Minimum wall thickness: 8 mm (0.31”)

1.4 Can be supplied in various flange positions relative to the vertical centre line in

increments of 90° (option)

2.0 Outlet head

2.1 Flange connection DN 150, PN 10 (6”).

2.2 Cast iron EN-GJL-250 (ASTM A48-35B).

2.3 Minimum wall thickness: 8 mm (0.31”)

2.4 Can be supplied in various flange positions relative to the vertical centre line in

increments of 90° (option)

3.0 Intermediate section

3.1 Cast aluminium EN-AC-42000 (ASTM 360.1).

3.2 Each intermediate section is cast in one piece

4.0 Bearing housing

The outboard bearing housings are cast iron and bolted to the outside of the head sections

insuring cool operation of bearings.

4.1 Cast iron EN-GJL-250 (ASTM A48-35B).

4.2 Has cast fins to improve rigidity and increase heat dissipation

4.3 Labyrinth type grease seal

4.4 Provided with 2 tapped holes in the housing flange to act as bearing puller.

N.B.: When the inlet air or gas temperature is too high, we can adapt as option special

bearing housings with a water or air cooling system (technical drawing on request).

Summary of content (4 pages)

PAGE 1
DETAILED ENGINEERING DESCRIPTION AND MECHANICAL FEATURES OF CONTINENTAL INDUSTRIE MULTISTAGE CENTRIFUGAL BLOWER MODEL 031A I - BLOWER HOUSING The centrifugal blower housing consists of an inlet head with special feature to direct air to inlet of first impeller and outlet head of special design to eliminate friction and multiple intermediate sections.
PAGE 2
5.0 Bearings 5.1 The rotor assembly is supported by 2 heavy duty grease lubricated ball bearings, single row, sized to withstand the thrust load also type SKF or FAG. 5.2 Sized for minimum 10 years of operation (Direct Drive only), following SKF L10 bearing life calculation method. 5.3 Bearings are mounted in outboard type bearing housings and located so that bearings may be serviced without disassembling the blower casing or piping. 6.0 Shaft 6.
PAGE 3
9.0 Casing assembly 9.1 Vertically split assembly 9.2 Heads and sections have machined male and female joints to maintain concentricity 9.3 Entire casing is retained together with ø 20 mm O.D. 9.4 Joints are made gas tight with silicone sealant with following characteristics: Viscosity pasty mastic glue max. space [mm] 6 Setting time 10 mn - 24 h Shearing's resistance [DAN/cm²] 33 Break's resistance [DAN/cm²] 8 Max.
PAGE 4
12.0 Recommended maximum allowable Piping forces and moments on blower connections 12.1 Inlet flange FX = 30 KG FY = 75 Kg FZ = 60 Kg MX = 45 kgm MY = 22 kgm MZ = 22 kgm FX = 30 KG FY = 75 Kg FZ = 60 Kg MX = 45 kgm MY = 22 kgm MZ = 22 kgm 12.2 Outlet flange where : F = force M = moment X = Axial - parallel to rotor centre line Y = Vertical Z = Horizontal - normal to rotor centre line. 13.