We use water-tube boilers in cases where conventional smoke-tube boiler plants are not capable of providing the required parameters. Water-tube boilers are compatible with a wide range of different configurations and combustion chamber designs. If needed, heating surfaces can be cleaned during boiler operation.

Water-tube boilers are solid and proven products. The evaporator part is operated with a natural water circulation. Water-tube boilers require a relatively small water content compared to shell-type boiler units. This advantage permits the system to respond to quickly changing load demands.

Typical applications:

• Steam outputs of up to 150 t/h
• Steam parameter of up to 120 bar / 550 °C

For several years now we supply boiler plants in two drum design (D-type) for different applications. This design gives the following advantages:

• Stable water circulation in natural flow
• High Pre-manufacturing possible with pressure test in works
• Individual placement of superheater stages
• Design in single or two draft
• Application as waste heat boiler
• Short erection times

The heating surfaces and the combustion chamber can easily be reached through the side openings.

Typical applications:

• Steam outputs of up to 100 t/h
• Steam parameters of up to 50 bar / 550 °C

Smoke-tube boilers are commonly used for small and medium pressure ranges and steam outputs. Customisation options include:

• Cooled or dry combustion chamber and optimised furnace conditions
• Combination with superheaters, economisers and additional heating surfaces possible
• Directly fired units but also in combined heat and power operation, such as waste heat recovery from gas turbines
• Big water content offering short-term steam supply in case of pressure drop

Typical applications:

• Downstream gas turbines of 1 – 15 MWel
• Steam outputs of 5 – 60 t/h
• Operating pressures of up to 40 bar

Waste heat recovery is one of our fields of expertise. The most suitable boiler system will be chosen according to various parameters, e.g. waste heat parameters, exhaust gas composition, dust loading etc.

Heat recovery boilers are projected and delivered mainly for the following waste heat sources:

• Small- and medium-sized gas turbines
• Reciprocating engines, especially gas motors
• Thermal treatment plants
• Waste heat from different kinds of processes

Frequent applications:

• Downstream gas turbines of 1 – 50 MWel
• Steam outputs of 5 – 100 t/h
• Operating pressures of up to 120 bar

  Our hot water boilers in water tube design with forced flow are an excellent option for large heat loads and high hot water parameters. The advantages include a high boiler efficiency, a particularly solid construction and flexible operation options. Hot water boilers can be adjusted to restricted site conditions. Hot water boilers are compatible with various waste heat applications and may be used as additional heating surfaces downstream of steam generators.

Frequent load ranges:

• 30 to 200 MW hot water heat load
• Temperature ranges of 70 to 250 °C
• Pressures up to 40 bar

We are always focused on our clients’ needs and the individual plant requirements. Parameters that have to be considered include:

• Fuels, parameter and boiler operation modes
• Restricted space and difficult erection sequences
• Requirements regarding exhaust gas and noise emissions
• Tight time schedules and special site conditions