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ul. Ovtsinskaya, 66Д
Sverdlova Settlement, 188682
Sverdlova Settlement, 188682
Compressor 1112-3700/0.41
The original design for sulfuric acid production technology specified the compressor 1112-3700/0.41 to increase pressure of a mixture of air and sulfur dioxide.
The compressor is designed to be one-stage, double-entry. The stage is designed with two impellers according to 'back-to-back' layout, divided by a spacer, and two separate vaned diffusers after which it is divided by a 'cowl' and enters two collection chambers. The compressor is driven by a synchronous motor. The compressor rotor is rotated directly by the motor through a coupling.
The compressor is designed to be one-stage, double-entry. The stage is designed with two impellers according to 'back-to-back' layout, divided by a spacer, and two separate vaned diffusers after which it is divided by a 'cowl' and enters two collection chambers. The compressor is driven by a synchronous motor. The compressor rotor is rotated directly by the motor through a coupling.
In the sulfuric acid production shop СК-20 of Balakovo branch of JSC Apatit an objective was set to increase consumption and pressure of air entering a drying tower in order to increase product output.
One double-flow medium-pressure impeller of an increased diameter has been made.
A single double-row diffuser is implemented to ensure a wide operation range of a charger, and also to increase efficiency of the flowpath and reduce speed in the diffusor before a scroll to a sufficient level. The first row is designed in a way to ensure a wide operation range by an angle of incidence, and the second row which is the main operating one, efficiently diverts and retards the flow.
The 'cowl' is designed taking into account flow parameters at the exit from the vaned diffuser.
A single double-row diffuser is implemented to ensure a wide operation range of a charger, and also to increase efficiency of the flowpath and reduce speed in the diffusor before a scroll to a sufficient level. The first row is designed in a way to ensure a wide operation range by an angle of incidence, and the second row which is the main operating one, efficiently diverts and retards the flow.
The 'cowl' is designed taking into account flow parameters at the exit from the vaned diffuser.
In the summer of 2019 the upgraded compressor was commissioned. In the course of acceptance tests the increased output by 32% with the increased final pressure by 30% was proven.
