Carlyle 05T-033 애플리케이션 매뉴얼 - 페이지 14

{카테고리_이름} Carlyle 05T-033에 대한 애플리케이션 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Carlyle 05T-033 20 페이지. Screw compressor

INTERSTAGE SCHEMATIC WITH INJECTION TO MOTOR AND ROTORS

Liquid Injec on

LRI

to Rotors

A normally closed solenoid valve is required in the inter-

stage line feeding each compressor on a parallel rack. This

valve is required to eliminate interstage to suction pressure

leak back during the off cycle of any compressor. This valve

must open only when the compressor is in operation.

Check valves are also required in the interstage line feeding

each compressor on a parallel rack as shown. The check

valve must be located upstream of the motor cooling valve

for each compressor and downstream of the solenoid valve.

Motor Cooling

Injec on Valve

Check

Solenoid

Isola on

Valve

Liquid Injec on

Motor Cooling

LRI

to Rotors

Injec on Valve

Interstage Header

Check

Isola on

Valve

Compressors operating with different saturated suction tem-

peratures can have a significant difference in interstage

pressure. Separate subcoolers are recommended for each

suction temperature group.

Liquid Line

from Condenser

EXV

Solenoid

Valve

Mechanical

Subcooler

Liquid Line

To Evaporator