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Blower

2019-08-19 09:03:00 56

1S1800-16 as :
S for double suction blower 
1800 for nominal inlet flow rate of 1800m3/min 
1 for 1-stage compression, i.e. the amount of impeller is 1 
6 for the 6th design

Product Parameters:

Range of flow rate: 500-5500 m3/min

2,Models of GM series blowers

GM20L     GM25L    GM35L     GM45L    GM55L    GM65L     GM75L
GM20H    GM25H    GM35H    GM45H    GM55H    GM65H    GM75H

GM series air blower is of the structure of a single-stage overhung type, axial intake and radial exhaust. Air passes through the inlet duct with silencer and enters suction pipe and inlet guide vane. This is connected by the main driver through coupling to speed-increasing gear, which increase the air pressure by driving the 3D mixed-flow semi-closed impeller rotating at high speed. The air is exhausted through the diffuser, spiral housing and diffusing pipe. The lube oil is supplied by the main oil pump which is connected directly to the driving shaft, and by the electric auxiliary oil pump when starting and shutting down. The axial thrust of the high speed rotor is transferred from the thrust collar to the low speed shaft, greatly reducing the mechanical losses.

Structure of GM series blower

• Inlet guide vane mechanism 
• Diffuser 
• Volute  
• High speed rotor 
• Speed increasing box 
• Bearing 
• Bull gear 
• Coupling 
• Lubricant system 
• 3D semi-closed mixed-flow type impeller

 

Range of Pressure:

Compression ratio is less than 1.5

Manufacturing Materials:

Made of the following materials depending on different compressor’s medium, temperature and pressure

 

Casing

HT250 (DIN GG25, ASTM A278 40Stages), 
Q235-A (DIN S235JR, ASTM A570 Gr A) (welding machine casing)

Main shaft

40CrNiMo7 (ASTM/AISI 4340), 35CrMo (ASTM/AISI 4135)

Impeller

FV520B (ASTM A705, 630), X12Cr13 (ASTM A473, 410)

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