MUMBAI, India, Aug. 17 -- Intellectual Property India has published a patent application (202321022070 A) filed by Larsen & Toubro Limited on April 27, 2024, for A Sealing Mechanism For Tubesheet In High Pressure Heat Exchanger.
Inventors include Murur Venkatesh Prabhu; Manoj Wani; Omkareshwar Batkadli; and Suman Bakshi.
The application for the patent was published on August 14, 2026, under issue no. 33/2026.
Abstract: A SEALING MECHANISM FOR TUBESHEET IN HIGH PRESSURE HEAT EXCHANGER Abstract Disclosed is a sealing mechanism (50) for tube sheet to shell joint in a high-pressure heat exchanger (100) comprises a sealing arrangement for restricting the intermixing of shell side and tube side fluids and a leak detection system for indicating in case detected with leakage of fluid. The mechanism is used for tube bundles in H-H type high-pressure screw plugs or breech lock heat exchangers in refineries and other applications wherein intermixing between shell and tube side fluid is eliminated. The mechanism ensures tube sheet attachment to the channel header to provide leak tightness of the joint yet permits removal of the tube bundle for maintenance purposes. Ref. Fig. 4
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