| 摘要 |
refrigerating engineering. SUBSTANCE: refrigerating unit evaporator includes evaporating tube, thermostatic valve and solenoid-operated valve. Thermostatic valve has body with inlet and outlet chambers, pressure gauge system whose thermosensitive sensor is fitted at evaporating tube outlet, valve changing flow rate of refrigerating agent depending on superheat of refrigerating agent vapor at evaporating tube outlet, adjusting spring and mechanism regulating initial force of this spring. Solenoid-operated valve includes solenoid coil and core with cock and return spring secured on this core. Solenoid-operated valve is fitted in inlet chamber and is connected to control circuit of compressor motor. Its core with valve secured on it is intended for hermetically shutting0off supply of liquid refrigerating agent to cock of thermostatic valve when motor of refrigerating unit compressor is switched off. EFFECT: enhanced reliability; low cost; reduced labor consumption; improved mass and dimensional characteristics; extended field of application. 1 dwg |
