Steam injection heater with integrated cleaning mechanism
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United States of America Patent
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Dec 13, 2022
Grant Date -
Nov 5, 2020
app pub date -
May 1, 2020
filing date -
May 2, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A direct contact steam injection heater that includes a stem plug that is rotatable over 360°. The stem plug is connected to an actuator that is operable to rotate the stem plug over 360° of rotation during both the heating function of the steam injection heater and during a clean-in-place process. The stem plug includes a regulating head having a pair of sealing inserts formed on each of a pair of sealing faces. The sealing inserts are biased outward into contact with an inner surface that includes the steam injection nozzles. As the regulating head rotates between a closed position and an open position, the nozzles are exposed to allow steam to flow into the product being heated. The regulating head further includes a pair of foils. During the clean-in-place operation, the foils create a turbulent flow of cleaning liquid within the steam chamber.
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