Pressure-adjustable multi-tube spraying device

A multi-tube spraying device, comprising:

• a body having a closed vessel and comprising:
• a plurality of spraying tubes disposed in an upper part of the closed vessel;
• a plurality of heat exchanging tubes disposed in a lower part of the closed vessel;
• an outlet pipe for discharging refrigerant vapor;
• and
• a connecting pipe for introducing the refrigerant vapor of a refrigerant source into the closed vessel;
• and
• a liquid receiver having a collecting room for refrigerant, wherein the collecting room has an inlet connected to the refrigerant source and an outlet connected to the spraying tubes of the body.

A multi-tube spraying device, comprising:

• a body having a closed vessel, and comprising:
• a plurality of spraying tubes disposed in an upper part of the closed vessel;
• a plurality of heat exchanging tubes disposed in a lower part of the closed vessel;
• an outlet pipe for discharging refrigerant vapor, and
• a connecting pipe for introducing refrigerant vapor of a refrigerant source to the closed vessel;
• a liquid-vapor separator connected to the refrigerant source to separate the refrigerant vapor from liquid refrigerant therein, wherein the refrigerant vapor is introduced to the closed vessel through the connecting pipe of the body, and the liquid refrigerant is introduced into the spraying tubes of the body;
• and
• a liquid receiver having a collecting room to collect the liquid refrigerant, wherein the collecting room has an inlet connected to the refrigerant source and an outlet connected to the spraying tubes of the body.