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Heat Exchanger, Innovation, Design
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LUMMUS ADVANCED BREECH-LOCK
EXCHANGER Heat Exchanger
Its a special channel closure exchanger suitable for high-pressure/high-temperature applications
Channel closure is obtained by screwing the cover on the channel body instead of using heavy bolting
Suitable for shell-and tube-side high-pressure applications (H/H type) and for tube-side only (H/L type)
Suitable for applications in refinery and petrochemical units, operating at high pressure and temperature with hydrogen-rich streams such as Hydrocrackers
What is a LUMMUS ADVANCED BREECH-LOCK
EXCHANGER Heat Exchanger?
The LUMMUS ADVANCED BREECH-LOCK EXCHANGER
heat exchanger was invented and developed in 1960 byStandard Oil Co. of California.
The first Breech-Lock exchanger was put into operation in1966.
In 1982, ABB LUMMUS HEAT TRANSFER became a licenseefor the worldwide marketing of high pressure LummusAdvanced Breech-Lock Exchanger heat exchangers.
In 1982, IMB became an ABB LHT licensee and contributed tothe development of the LUMMUS ADVANCED BREECH-LOCKEXCHANGER Heat Exchanger internals design.
Over 1,400 Breech-Lock high-pressure heat exchangers arein operation worldwide. Approximately 50% weremanufactured by KHT/IMB.
History
Plants with high-temperature/high-pressure hydrogen-rich streams
Applications : Hydrocrackers
Gas compression
Ammonia synthesis
Miscellaneous
Main Features: Reliable high-pressure performance sealing
Easy dismantling/reassembly for inspection and maintenance
Reduced high-stressed zones in the channel
In-service seating of internal gaskets
Applications & Features
Hydrostatic load on the channel cover is absorbed by the channel threads and by the channel body
Tightening of channel-cover gasket by small bolts
Bolts are in line with gaskets center line; no bending moment on components due to the bolts loading
Spiral-wound or Kammprofile gaskets are used in the girth joints
Diaphragm makes cladding on channel cover superfluous
Channel cover is relatively thin and light.
Closure Engineering Features:
Closure Advantages:
Minimum of flanged joints due to integral construction of channel body
No internal threaded holes into weld overlaid channel portions (compared to bolted-
in design)
Retightening of tubesheet gasket during operation is possible without any
shutdown
All channel parts can be easily removed without cutting or Grinding
No need for heavy crane or for hydraulic bolt tensioning devices to remove and
reassemble channel cover and bolts
No need of welding and PWHT during reinstallation of channel parts or diaphragms
Over 1300 mm. (50) Shell ID and 150 bar (2200 PSI) LUMMUS ADVANCED
BREECH-LOCK EXCHANGER Heat Exchanger is cheaper
LUMMUS ADVANCED BREECH-LOCK EXCHANGER Heat Exchanger closure can be
combined with enhanced heat transfer technologies such as Twisted Tube heat
exchanger, Helixchanger or Low-Pressure Drop LOK-BAFFLE to get the best in-
service overall performance.
Special Dismantling Jig
Opening and closing activities are even quicker and easier
No need of heavy cranage
for dismantling as its self
sustained on the exchanger
Can be stored in split
conditions
Its adjustable for different
exchanger diameters
LOWER CAPITAL EXPENDITURE +
EASIER MAINTENANCE +
SHORTER SHUTDOWN TIME
HIGHER RELIABILITY & LOWER TOTAL LIFE-CYCLE COST
LUMMUS ADVANCED BREECH-LOCK EXCHANGER
Heat Exchanger
Design Pressure: 168 barg (2437 PSI)
Design Temperature: 345 C (653 F)
Shell ID: 1470 mm. (58)
Bolt size: 5 (# 20)
Bolt weight: 120 Kg./each
Design Pressure: 200 barg (2900 PSI)
Design Temperature: 450 C (842 F)
Shell ID: 1730 mm. (68)
Bolt size: 1 (# 72)
Bolt weight: 1,1 Kg./each
Reduced Bolt Size
Design Pressure: 190 barg (2755 PSI)
Design Temperature: 454 C (850 F)
Shell ID: 858 mm. (34)
Bolt size: 3 (# 20)
Bolt weight: 34 Kg./each
Design Pressure: 195 barg (2828 PSI)
Design Temperature: 454 C (850 F)
Shell ID: 890 mm. (35)
Bolt size: 1 (# 44)
Bolt weight: 1,1 Kg./each
Reduced Bolt Size
Not Just Another Screw-Plug Closure Exchanger
Channel is thicker compared to other screw plug closures in order toguarantee no deformation during manufacturing or service
Narrow tolerance for channel & lock ring thread for safer operation
Internal bolts are not prone to deformation or to overstressing
Seal gasket, confined into the diaphragm, guarantees sealing even duringtransient conditions
Detailed design has been improved and optimized over the years even onminor details that can heavily affect reliability and maintenance,
Effective operations and maintenance manual includes a detailed plan forpreventive maintenance
Dedicated team with extensive experience for training, site service andsupervision during LUMMUS ADVANCED BREECH-LOCK EXCHANGERHeat Exchanger shutdown and maintenance
LUMMUS ADVANCED BREECH-LOCK EXCHANGER Heat
Exchanger
Closure design assessment made by a customer
Screw-Plug Item 52E-1:
Shell Design:
2925 psig / 750F
202 barg / 399 C
Tube Design:
2685 psig / 867F
185 barg / 564 C
Channel Barrel Wall
Thickness:
2.911 (74 mm.)
LUMMUS ADVANCED BREECH-
LOCK EXCHANGER Item 63E-4:
Shell Design:
2130 psig / 800F
147 barg / 426 C
Tube Design:
2395 psig / 750F
165 barg / 399 C
Channel Barrel Wall
Thickness:
3.189 (81 mm.)
One of the Biggest Ever Built
Design Pressure:
179 bar shell s. 200 bar tube s.
2596 PSI shells. 2900 PSI tube s.
Design Temperature:
454 C shell s. 427 C tube s.
850 F shell s. 800 F tube s.
Shell ID: 1981 mm. (78)
Weight: 180 Tons/each
Stacked at Cremona river port and
shipped to the site in stacked
condition.
U.S. Refinery - Clean Fuel Plant
Design Pressure:
196 bar shell s. 178 bar tube s.
2843 PSI shell s. 2582 PSI tube s.
Design Temperature:
430 C shell s. 454 C tube s.
806 F shell s. 850 F tube s.
Shell ID: 864 mm. (34)
Weight: 35 Tons/each
No.3 Breech-Lock Exchangers
hydrotested in stacked condition
and then shipped separately
LUMMUS ADVANCED BREECH-LOCK EXCHANGER Heat
Exchanger with TWISTED TUBE Bundle for a German Refinery
Service:
Hydrocracking
Combined
Feed/Effluent
Clients design:
10 Exchangers
Twisted Tube
Bundle Design:
7 exchangers
LUMMUS ADVANCED BREECH-LOCK EXCHANGER Heat
Exchanger with TWISTED TUBE bundle for German Refinery
Design Pressure:
154 bar s.s. 136 bar t.s.
2234 PSI s.s 1972 PSI t.s.
Design Temperature:
450 C s.s. 454 C t.s.
842 F s.s. 850 F t.s.
Shell ID: 1370 mm. (54)
Weight: 56 Tons.
Price Comparison
HIGH-PRESSURE SHELL & TUBE WITH LUMMUS ADVANCED
BREECH-LOCK EXCHANGER Heat Exchanger CLOSURE
Thank you for your attention!