BREECH LOCK HEAT EXCHANGER PDF

High pressure screw plug (also called breech lock) exchangers are of the most reliable heat exchangers in the plant, it is very clear to me that. Threaded Closure Heat Exchangers. FBM-Hudson Italiana has developed design and manufacturing know-how to prevent hydrogen and high temperature . SCREW PLUG OR BREECH LOCK HEAT EXCHANGER (EASIER MAINTENANCE+SHORTER SHUTDOWN TIME = HIGHER EFFICIENCY) Presented by.

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Log In Sign Up. A special threaded ring hold the channel cover and contain channel pressure.

Designed and manufactured with the closest tolerances and highest attention to detail for reliability, easy maintenance and enhanced safety.

Detailed design has been improved and optimized over the years, even on minor details that can affect reliability and maintenance. After traveling around the world helping facilities turn these exchangers from chronic leakers from internal tubesheet and external diaphragm and B style shell leaks to one of the most reliable heat exchangers in the plant, it is very clear to that manufacturers, engineers and mechanics struggle to correctly understand the interactions between gaskets, internal pressure, the two circles of external push bolts that are part of A style exchangers and all the internal parts.

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Some manufactures have given up on trying to make these connections operate leak free, and prefer to weld in the tubesheets and diaphragms.

This significantly adds to the cost and time needed to open and close these exchangers, as special equipment is needed to machine out the parts and weld them back together again. Lower capital expenditure, easier maintenance, shorter shutdown time means higher plant reliability, lower total life-cycle cost.

Screw Plug ( Breech Lock ) Heat Exchanger, Helixchangers, High Pressure :: Tema India

exchanter A spreadsheet that will easily analyze the critical variables; 2. Correct gasket selection; 3. Correct assembly procedures that focus on important steps including proper spacing of internal parts and obtaining consistent thread friction; 4. And finally hot torqueing the exchangers after startup. The tubesheet for the Breech-Lock heat exchanger is designed for a differential pressure. The internal bolts are used to apply the seating load to the gasket at the tubesheet and shell interface.

FEA analysis carried out at TEMA INDIA

The pressure load is absorbed by the threaded closure and the outer row of external bolts applies the seating load to the channel gasket.

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The inner row of external bolts is used to increase the seating load between the tubesheet and shell gasket in the event of relaxation of the inner bolts. These exchangers are easy to operate and comparatively easy to dismantle and reassemble, which results in more reliable operation and shorter shut down time.

Dismantling and reassembling operations.

Breech Lock Heat Exchangers

With the jig it is possible to open the channel, remove the internals, assemble and reclose of the Breech-Lock The exchangers in a very short time without need of heavy cranage.

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