CIP CONTROL SURVEILLANCE SYSTEM AND APPLICATION OF THE SYSTEM

摘要

The present invention relates to a CIP Control Surveillance System where all streams forward and return are monitored and accounted for and where values for each step may be stored in a data base. The CIP system used to clean of one or more objects comprises a primary tank (1) for primary cleaning media, optionally a secondary tank (2) for secondary cleaning media, a supply of freshwater (20), one or more forward lines (4) forwarding liquid in form of primary or e.g. secondary, cleaning media or water from the CIP process plant to one or more objects (A, B, …, X) where one object may comprise one unit or a part of a unit such as a tank or pipeline or a combination of units and each object is subjected to a separate CIP flow, one or more return lines (5) returning liquid in form of primary, e.g. secondary cleaning media or water from the object to the CIP process plant, and valves (12, 13, 14, 7, 8, 6a,) directing the flow through tanks and pipes of the CIP Process Plant, where each forward line (4) comprises valves (12, 13, 14) directing liquid from either the supply of freshwater or from a tank into a forward line (4), and each return line (5) comprises inlet valves (7, 8, 6a,) directing liquid from the return line (5) into a tank (1, 2,) or into a drain (6). Further, the system comprises a sensor and transmitter (34) measuring concentration in the forward line 4 to an object at a position down stream of inlets/outlets valve from tank or supply and upstream of the inlet for the object and transmitting a value for the concentration to a controller, and a sensor and transmitter (35) measuring volume or mass flow (35) in the forward line (4) to the object at a position down stream of inlets/outlets valves from tank or supply and upstream of the inlet for the object, and a sensor and transmitter (33) measuring concentration in the return line (5) from the object at a position downstream of the object and upstream of any inlet/outlet valves to or from tanks or supply and transmitting a value for the concentration to the controller, and a sensor and transmitter (36) measuring volume or mass flow in the return line (5) from the object at a position downstream of the object and upstream of any inlet/outlet valves to or from tanks or supply, and means such as a controller or computer configured to compare in and out values for a period.