DRAIN APPARATUS WITH SIPHON TUBE AND DRAIN CONTROL TECHNIQUE

摘要

Purpose: with the drain apparatus that a siphon pipe and one spit report control technology it is arranged to that drained water is prevented to flow back into heat exchanger in a siphon pipe of a heat exchanger. Construction: a water supply electron tube (15) is closed, inner open of the ventilation hole electron tube (18) to the heat exchanger (1) for being maintained at atmospheric pressure. One sewer electron tube (13) passes through the siphon pipe (17) that is installed on an outlet side head (7) to allowing to open water draining. One float switch (6) is felt to be drained into a drain plate (3), operates a drainage pump (5). Water in siphon pipe passes through a sewer subsidiary combustion chamber (12) by the drainage by suction generated in sewer subsidiary combustion chamber, so that water in a heat exchanger is fully drained. Float switch is turned off to prevent drainage pump and close sewer electron tube and ventilation hole electron tube when the draining of heat exchanger is completed. One apparatus work prevents the damage of heat exchanger due to freezing when room temperature drops to zubzero temperature, when heat exchanger not just at work.