Compact Heat Exchanger

Compact Heat Exchanger – LUGAT-System
Energy Savings by Heat Recovery

2
PROviDinG SOLUTiOnS fOR inDUSTRiAL PLAnTS
Regenerative Heat Exchangers
Very important energy savings can be achieved in the case of steam boilers and industrial furnaces by the use of
Regenerative Heat Exchangers for the recovery of flue gas heat normally discharged into the atmosphere, and by using
this to preheat the air for combustion.
The Lugat Heat Exchanger of compact design has been used for this purpose for many years, and the rugged construction
has proved to be very satisfactory for all fuels and operating conditions. Carefully designed heat transfer plates are
arranged in sectors of the slowly rotating rotor. During rotor rotation the flue gas heat is alternately stored by the heating
plates and transferred to the incoming air. This operating principle provides high heat transfer efficiencies within a
most confined space.
The Heating Surface
The heating surface consists of metal plates of 0.5—1.0 mm thickness which by virtue of their special shape achieve
a high heat transfer in line with the lowest possible resistance. On the cold end the plates are arranged in boxes of
300 mm height, which can be easily replaced. In case of great corrosion-risk the heating plates are made of a special
material or are provided with a durable enamelling.
Rotor Bearing Arrangement
The rotor is seated in two self-aligning roller bearings. The bearing housings are cooled by water to allow a dissipation
of the incoming heat from shaft and bearing area.
Drive
The rotor is normally driven by a geared motor via a pin rack, but it is also possible to apply any other type of drive unit,
as for example, steam or compressed air turbine.
Seals
The seals prevent the transfer of combustion air into the flue gas. The sealing plates are flexible to permit an adaptation
to the rotor distortion under changing temperature conditions at different loads.
Auxiliary Equipment
Optimal fuel utilization has become an urgent challenge
due to the continuous rise in energy prices and the current
requirements on CO 2 minimization.
We recommend increasing the efficiency of steam boilers
and industrial furnaces through lower flue gas temperatures,
thus improving operating economy. This can
be done both on new and older plants that have been in
operation for many years.
Depending on the operating conditions involved, the heat exchangers can be quipped with auxiliary devices, such as a
blowing device, a fire alarm system, an extinguishing device, a washing device and a rotation control.

Compact Design
Casing
Rotor with Heating Elements
Seals
Bearings
Drive
Soot Blower
Water Washing Device
Gas Flow
Air Flow
2.
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AvAiLABLE ARRAnGEmEnTS
HORizOnTAL TyPE
Washing Device
Fire Extinguishing
Cooling Water
Rotation Control
Replaceable Cold End
Heating Elements
Hot End Heating
Elements
Soot Blowing

The Lugat regenerative heat exchangers can be manufactured in both vertical and horizontal design.
The horizontal design also permits an arrangement of the ducts side-by-side or one above the other.
vERTiCAL TyPE
Washing Device
Fire Extinguishing Cooling Water
Rotation Control
Guide Bearing
Soot Blowing
Hot End Heating
Elements
Replaceable Cold End
Heating Elements
Support Bearing
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fROm mAnUfACTURE TO inSTALLATiOn AT SiTE
Workshop manufacturing
Heat exchanger
Cv 2.8/1.05 + 0.3
The type designation CV 2.8 corresponds
to the inner rotor diameter.
29 standard sizes with diameters of
1.0–6.4 m are available for application
in boiler plants with capacities
of 3 to 350 t/h steam.

Transport and Erection
Lugat heat exchangers with diameters
of up to 5.6 m can be
shipped completely assembled.
At jobsite it is therefore only
required to connect the ducts and
the auxiliary equipment.
Shipment to New Zealand
Weight of the Air Heater 110 t
installation at site
Mounting of a 4.6 meter Vertical
Shaft Preheater in a Steel Mill in
Northern France.
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OvERALL DimEnSiOnS HORizOnTAL SHAfT
Type* A B C D E F G H J K
CH 2.0 x + 1420 3360 2600 1300 x + 1200 2000 2040 570 900 80
CH 2.2 x + 1420 3560 2800 1400 x + 1200 2200 2240 670 900 80
CH 2.4 x + 1420 3760 3000 1500 x + 1200 2400 2440 770 900 80
CH 2.6 x + 1420 3960 3200 1600 x + 1200 2600 2640 870 900 80
CH 2.8 x + 1420 4160 3400 1700 x + 1200 2800 2840 970 900 80
CH 3.0 x + 1420 4360 3600 1800 x + 1200 3000 3040 1070 900 80
CH 3.2 x + 1420 4560 3800 1900 x + 1200 3200 3240 1170 900 80
CH 3.4 x + 1420 4760 4000 2000 x + 1200 3400 3440 1270 900 80
CH 3.6 x + 1420 4960 4200 2100 x + 1200 3600 3640 1370 900 80
CH 3.8 x + 1420 5160 4400 2200 x + 1200 3800 3840 1470 900 80
CH 4.0 x + 1620 5360 4600 2300 x + 1360 4000 4000 1450 1100 100
CH 4.2 x + 1620 5560 4800 2400 x + 1360 4200 4200 1550 1100 100
CH 4.4 x + 1620 5760 5000 2500 x + 1360 4400 4400 1650 1100 100
CH 4.6 x + 1620 5960 5200 2600 x + 1360 4600 4600 1750 1100 100
CH 4.8 x + 1620 6280 5400 2700 x + 1360 4800 4800 1850 1100 100
CH 5.0 x + 1870 6480 5700 2900 x + 1570 4900 5000 1850 1300 100
CH 5.2 x + 1870 6680 5900 3000 x + 1570 5100 5200 1950 1300 100
CH 5.4 x + 1870 6880 6100 3100 x + 1570 5300 5400 2050 1300 100
CH 5.6 x + 1870 7080 6300 3200 x + 1570 5500 5600 2150 1300 100
CH 5.8 x + 1870 7280 6500 3300 x + 1570 5700 5800 2250 1300 100
CH 6.0 x + 1990 7480 6700 3400 x + 1690 5900 6000 2300 1400 100
CH 6.2 x + 1990 7680 6900 3500 x + 1690 6100 6200 2400 1400 100
CH 6.4 x + 1990 7880 7100 3600 x + 1690 6300 6400 2500 1400 100
* Type designation indicates rotor diameter (in m)
x = Hot End Element Height (in mm)
(All Dimensions in mm)
Dimensions for information only, not binding for construction.

OvERALL DimEnSiOnS vERTiCAL SHAfT
Type* A B C D E F G H J K
CH 2.0 x + 1545 3360 2500 1300 2800 900 2040 570 900 80
CH 2.2 x + 1545 3560 2700 1400 3000 900 2240 670 900 80
CH 2.4 x + 1545 3760 2900 1500 3200 900 2440 770 900 80
CH 2.6 x + 1545 3960 3100 1600 3400 900 2640 870 900 80
CH 2.8 x + 1545 4160 3300 1700 3600 900 2840 970 900 80
CH 3.0 x + 1745 4360 3500 1800 3800 900 3040 1070 900 80
CH 3.2 x + 1745 4560 3700 1900 4000 900 3240 1170 900 80
CH 3.4 x + 1745 4760 3900 2000 4200 900 3440 1270 900 80
CH 3.6 x + 1745 4960 4100 2100 4400 900 3640 1370 900 80
CH 3.8 x + 1745 5160 4300 2200 4600 900 3840 1470 900 80
CH 4.0 x + 2095 5360 4550 2350 4800 1100 4000 1450 1100 100
CH 4.2 x + 2095 5560 4750 2450 5000 1100 4200 1550 1100 100
CH 4.4 x + 2095 5880 4950 2550 5200 1100 4400 1650 1100 100
CH 4.6 x + 2095 6080 5150 2650 5400 1100 4600 1750 1100 100
CH 4.8 x + 2095 6280 5350 2750 5600 1100 4800 1850 1100 100
CH 5.0 x + 2355 6480 5550 2850 6000 1300 5000 1850 1300 100
CH 5.2 x + 2355 6680 5750 2950 6200 1300 5200 1950 1300 100
CH 5.4 x + 2355 6880 5950 3050 6400 1300 5400 2050 1300 100
CH 5.6 x + 2355 7080 6150 3150 6600 1300 5600 2150 1300 100
CH 5.8 x + 2355 7280 6350 3250 6800 1300 5800 2250 1300 100
CH 6.0 x + 2355 7480 6600 3350 7000 1500 6000 2300 1400 100
CH 6.2 x + 2355 7680 6800 3450 7200 1500 6200 2400 1400 100
CH 6.4 x + 2355 7880 7000 3550 7400 1500 6400 2500 1400 100
* Type designation indicates rotor diameter (in m)
x = Hot End Element Height (in mm)
(All Dimensions in mm)
Dimensions for information only, not binding for construction.
9

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SPX CORPORATiOn
Finding innovative ways to help the world meet its growing demand
for power is a key focus for SPX. As a multi-industry
Fortune 500 manufacturer we provide creative solutions that
serve global energy markets in a myriad of ways. Right now, our
ideas are helping to build more efficient new power plants and
renovate older existing facilities. And, at thousands of power
stations in more than 60 countries across continents, our wet
and dry cooling solutions are hard at work. We’re also supplying
a wide range of components – from air preheaters to filter
systems for nuclear, coal-fired, solar thermal and geothermal
power plants.
With operations in over 40 countries, SPX has the presence,
products and powerful ideas it takes to help our customers
compete more effectively, and the world work more efficiently.

Head office Ratingen, Germany
Branch office Rothemühle, Germany
BALCkE-DüRR
Comprehensive Competence in Service, Heat
exchangers and filter systems
More than 120 years of product competence, the innovative
force of our international teams of experts as well as constant
research and development are the basis of our global power
strategy.
Advantages to our customers: Complete solutions and services
from one single source – quick, flexible and efficient.
Count on us and benefit from our product and service competence.
Balcke-Dürr GmbH, with about 650 employees at 3 locations
with workshops in Germany and about 1.000 employees
worldwide, focuses its activities on the following areas:
• Heat Exchangers For Water-Steam-Circuit
• Heat Exchangers For Air and Flue Gas Path
• Air And Flue Gas Systems For Power Plants
• Industrial Filter Systems
• Boiler services and general power plant services
Within the SPX Group , Balcke-Dürr is worldwide competence
centre for all tasks relating to its product lines and services.
ROTHEmüHLE
Supplying innovative heat exchanging and industrial
filtration solutions to more than a thousand
customers worldwide
The company “Apparatebau Brandt & Kritzler, Rothemühle”
has a long history in delivering components for different industrial
needs. Having supplied hundreds of electrostatic
precipitators as well as regenerative heat exchanger, Rothe -
mühle became well known as a reliable supplier and service
provider for industrial filter systems and heat exchangers
worldwide. Our branch-office in Rothemühle still runs its
highly specialized and experienced workshop for quick and
competent supply for customers.
11

Our Service Worldwide
SPX
Headquarters
Charlotte, USA
Head office:
Balcke-Dürr GmbH
Ernst-Dietrich-Platz 2
40882 Ratingen, Germany
Phone: +49 (0) 21 02 16 69-0
Fax: +49 (0) 21 02 16 69-617
bdinfode@cts.spx.com
balcke-duerr.com spx.com
Paris, France
Madrid, Spain
Ratingen,
Germany
Perugia, Italy
Rome, Italy
Balcke-Dürr GmbH
Branch Office Rothemühle
Wildenburger Str. 1
57482 Wenden, Germany
Phone: +49 (0) 27 62 61 1-0
Fax: +49 (0) 27 62 61 1-369
bdinform@cts.spx.com
Warsaw,
Poland
Neubeckum, Germany
Wenden, Germany
Stuttgart, Budapest,
Germany Hungary
Kelvin, South Africa
Nigel, South Africa
Wuxi, China
Shanghai, China
RM05/10 / 500e / UFER&CIE. BA_10040 / Wagner Media