| 摘要 |
<p>The present invention relates to a multi spraying system for spraying mist in an outdoor space and a control method thereof. When an air spray drain mode is executed, an air spray pump is off, a first valve is in an open state, a second valve is in a close state, and a connection end side valve and an open end side valve of a spray pipe are in open states. An air compressor is turned on to apply compressed air to a spray line so that the air spray is discharged to the outside from the spray line. When an air removal mode is executed, the air compressor is off, the first valve is in a close state, the second valve is in an open state, and the connection end side valve and the open end side valve of the spray pipe are in open states. Then, the air in the spray line is discharged through an open end of the spray pipe by supplying the air spray to the spray line by turning on the air spray pump.</p> |
