| 摘要 |
The invention relates to a device for the prevention of freezing and blocking of a waste pipe by condensate discharged from a boiler during freezing conditions. The device is designed to prevent freezing by arresting the flow of condensate and collecting it in an accumulator until there is sufficient quantity such that, with its sudden release, it will cascade down the waste pipe without the risk of freezing. To this end, the device preferably comprises a tilting bucket 1 used as an accumulator which, when filled, automatically releases its load and then returns ready to be refilled. In use, the continued collection of condensate moves the centre of gravity 3 of the bucket from one side of a tipping axis 5 to the other, with the result that it topples over and discharges; it is then returned to the original position by gravity and is ready to begin the cycle again. Preferably, the action of discharging the condensate is accelerated by positioning the buckets pivot 6 below the bucket and by increasing the length of the buckets delivery chute.
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