| 摘要 |
PROBLEM TO BE SOLVED: To provide an automatic drain discharging apparatus and an air compressor capable of performing stable drain discharge even under an operation condition of a low outdoor temperature.SOLUTION: An automatic drain discharging apparatus includes: a drain discharge path 13 connected to a drain separator 7 separating drain from compressed air; an automatic discharge valve 8 attached to the drain discharge path; a heating element 11 for heating the automatic drain discharge valve and the drain discharge path; and a control board 14 for performing opening/closing control of the automatic drain discharge valve and heating control of the heating element. When a current value in opening/closing control of the automatic drain discharge valve is outside a range of predetermined normal values, opening/closing of the automatic drain discharge valve is controlled while rapidly heating the heating element. When the current value is not restored to the range of the normal values within determination time, failure determination is made, and when the current value is restored to the range of the normal values within the determination time, freezing determination is made. In the freezing determination, operation of the air compressor is maintained, and in the failure determination, operation of the air compressor is stopped. |
