FIELD: heating.
SUBSTANCE: proposed absorption-diffusion refrigerating unit has a generator, absorber, condenser, evaporator, vapour-lift pump, steam pipe and another vapour-lift pump. The vapour-lift pump serves to raise strong solution into the separator and works on vapour of the cooling agent from the generator. The extra vapour-lift pump serves to feed solution into an extra separator and works on vapour of cooling agent from the separator. The liquid cavity of the extra separator through a hydraulic lock is joined with a connecting pipe for inlet of solution into the extra absorber. The refrigerating unit also contains the next extra vapour-lift pump for feeding solution into the next extra separator, working vapour of cooling agent from the extra separator. The liquid cavity of the next extra separator through a hydraulic lock is joined with the connecting pipe for inlet of solution into the next extra absorber. Liquid cavities of the absorber, extra absorber and the next extra absorber are joined together through a collector. The collector is joined to the bottom ends of the ascending pipes of the extra vapour-lift pump and the next extra vapour-lift pump.
EFFECT: obtaining a strong solution with maximum concentration during the absorption process.
1 dwg
