Cleaver-Brooks Inc

Cleaver-Brooks turns advanced watertube knowledge into custom D-type, A-type, O-type and Elevated Drum boilers that provide an ideal solution to almost any steam need. Our unique design incorporates a 100% membrane water-cooled furnace. This feature greatly reduces the costly, time-consuming annual maintenance associated with other boiler designs. The front and rear walls (including all of the corner gas seals) are completely welded and refractory-free, as well as the burner throat when integrated with a Cleaver-Brooks burner.

Units are available with either a corrugated-aluminum or painted steel outer casing, depending on the application and/or customer preference.

• Steam capacities from 10,000 to 500,000+ lbs./hr are available shop assembled
• Design pressures to 1,500 psig with steam temperatures to 1,050°F are available
• Conservatively designed tube layouts, coupled with large drums, provide superior natural circulation and operational characteristics
• Large, water-cooled, gas-tight furnace areas are utilized to yield optimum emissions performance, boiler reliability, and longevity with reduced maintenance costs
• Complete access to boiler water side is provided through manways at both ends of every drum

Furnace construction utilizes a welded-membrane wall design backed by more than 40 years of experience:

• Completely drainable 2 inch OD (minimum) tubes throughout
• Grooved tube seats for improved tube-to-drum attachment are standard
• Convection or radiant superheaters with proven designs are selected for your final required steam temperature and desired operating characteristics
• Fully welded gas seals are used throughout to ensure gas-tight operation
• Boiler wall constructions are 100% water cooled and refractory free
• Integral soot-blowing lanes effectively clean gas side-heating surfaces
• Full fire-side access is provided through furnace doors
• Easy convection pass inspection through removable covers

Superheated Steam Adaptability
We offer both single and dual-stage integral superheater systems that are capable of steam temperatures up to 1,050°F with optional temperature control over turndown. All superheaters are constructed of high-temperature alloys and precisely positioned inside the boiler to optimize performance and ensure a long, trouble-free life.

Combined Heat and Power, or CHP, can increase overall plant efficiency by 30 to 40 percent, adding onsite power generation and heat recovery required for downstream heating or process needs. The HRSG is an integral component to any CHP system. When coupled with an SCR, an HRSG can significantly reduce greenhouse gas emissions, while also providing plant reliability and increased efficiency.,

The Cleaver-Brooks HRSG line utilizes the exhaust from gas turbines or reciprocating engines to achieve efficiencies of more than 80 percent, compared to 56 percent for traditional technologies such as conventional electricity generation and an onsite boiler.

Our project teams ensure that the HRSG system is designed to your specifications, and our trained craftsmen produce boilers that are guaranteed to meet your exact standards. With state-of-the-art technology and expertise earned during 100 years in the industry, Cleaver-Brooks delivers reliability, sustainability and overall plant efficiency.

Slant HRSG Series

The Slant Series of natural circulation heat recovery steam generators features a single-pass design that offers the traditional Slant model and the VC (Vertical Drum Cross Flow) model. Both are tailored for applications with gas side inlet temperatures less than 1,700 °F. The traditional Slant model incorporates a steam and water (mud) drum positioned diagonally, which maximizes the amount of heating surface for a given shipping profile. This yields a compact and efficient method of heat recovery. 0 to 40 percent, adding onsite power generation and heat recovery required for downstream heating or process needs. The HRSG is an integral component to any CHP system. When coupled with an SCR, an HRSG can significantly reduce greenhouse gas emissions, while also providing plant reliability and increased efficiency.

VC Model (drum-over-drum) design

The VC model is a drum-over-drum design well suited for higher-pressure steam applications, integral CO / SCR systems, and horizontal exhaust flow arrangements. It can be customized with a stainless steel inner liner, refractory lining or water-cooled membrane wall construction, depending on your process requirements.

Max-Fire® HRSG Series

The Max-Fire® Series incorporates an integral furnace in a single, shop-assembled, packaged HRSG that combines a furnace, evaporator and superheater, if applicable, with a natural circulation design.

This innovative system combines a water-wall combustion chamber formed from membrane wall construction with an evaporator section. The integral water-cooled furnace allows for supplemental firing temperatures up to 2,800ºF. Capable of steam flows up to 500,000+ lb/hr, the Max-Fire Series is offered in two different models.

Membrane Wall Construction

The Max-Fire Series features an innovative design to help eliminate refractory wherever possible. Water-cooled membrane walls allow the boiler to safely withstand firing or flue gas temperatures up to 2,800°F.

This series also minimizes high-maintenance refractory, provides a positive inner gas seal, adds structural strength, eliminates flue gas entrapment, and helps maintain thermal efficiency.

Modular HRSG Series

The Cleaver-Brooks Modular HRSG Series minimizes field erection costs by providing the maximum amount of shop assembly. The natural circulation design allows for minimal parasitic power consumption and reduced maintenance of rotating equipment. Our engineering team reviews thermal performance, mechanical fatigue evaluation, circulation studies and pipe stress analysis with every project.

Duct Burner

Natcom® Duct Burners supplement the gas turbine in HRSG applications with an innovative flame stabilizer system and are ideal for use in CHP applications when additional steam is required for heat or process needs. Duct burners can fire a variety of gaseous fuels, including natural gas, LFG, digester gas, refinery gas and H2, as well as fuel oil.

Our in-house simulation allows accurate and complete modeling of the turbine exhaust flow, distribution grid, combustion, heat recovery system and SCR. We offer a complete control system for the HRSG, duct burner and SCR, or a stand-alone burner management system (BMS) for the duct burner.