Vacuum sizing tank with electro-mechanical controlled water flows

摘要

A vacuum sizing tank configured to provide controlled fluid flow. A fluid control system and a vacuum sizing tank utilizing electronic controls to create and maintain controllable fluid flow within the tank. Flow meters may measure the flow in and out of the tank to maintain consistency. Temperature meters may measure the temperatures for each of the flows to maintain consistency. An electronic circuit may compare the values with preset values. Any difference between the values may trigger change by varying the voltage applied to a variable speed water pump.

主权项

1. A vacuum sizing tank substantially closed to atmosphere comprising:
an enclosed trough capable of holding a liquid and a vacuum, the trough having a first opening for an ingress of a plastic extrudate and a second opening for egress of the plastic extrudate; a vacuum system constructed and arranged apply a vacuum to the trough; a pump system comprising a pump, the pump system constructed and arranged to provide a fluid flow within the trough and control fluid flow within the trough, a plurality of fluid inlets connected to the pump and allowing fluid to enter the trough in a plurality of different positions; a plurality of fluid outlets allowing fluid to exit from the trough in a plurality of different positions; and wherein the plurality of fluid inlets and plurality of fluid outlets are constructed and arranged to provide a fluid flow within the trough, and configured to form a flow zone within the trough, the flow zone having a controlled and uniform flow profile.