| 摘要 |
The invention concerns a method of drawing condensate off from compressed-gas, e.g. compressed-air, systems, the method calling for: 1) a trap (20) in which condensate collects during operation of the system, the trap (20) having an outlet (22) through which the condensate which collects can be drawn off; 2) a purging device (24) which is connected to the outlet (22) and which has (a) a sensor intended to detect the presence of condensate in the purging device, (b) control electronics (28) connected to the sensor (26) and including a timer circuit (30) and (c) a valve controlled by the control electronics (28) and which, influenced by the sensor (26), either shuts the purging device (24) so that no condensate can escape through it or opens it each time the condensate level rises and the sensor (26) switches over from indicating "no condensate" to indicating "condensate present", thus starting the timer circuit (30). On expiry of the time defined by the circuit, the valve is opened until the sensor (26) indicates "no condensate" again, when the valve closes the purging device (24) again. |
