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!