Heat Recovery Steam Generators
Deltak has engineered and manufactured more than 500 HRSGs behind gas turbines in the last 50 years. With experience across all levels of complexity and system types, Deltak has the experience for any application or type of project that may be required. Deltak offers a variety of constructability options depending on the size of the HRSG being supplied including but not limited to; replacement, inspection, parts, repairs, and maintenance.
Heat Recovery Boilers
Deltak’s 50+ years of engineering experience and advanced mechanical capabilities gives us the confidence to tackle our customer’s unique requests. With over 1200 custom-designed waste heat recovery units supplied to date, Deltak has unmistakable expertise in this industry. Utilizing different materials based on the situation, Deltak offers ASME Section I and VIII designed and fabricated watertube and firetube Waste Heat Boilers, to recover energy from flue gases created from various processes to lower gas temperatures for the next process or to simply produce steam.
Firetube Boilers
Designed to have gas inside and water outside the tubes. These firetube boilers, or Process Gas Boilers (PGBs), are able to handle higher gas pressures and velocities than watertube boilers. Applications that would use a firetube boiler are typically chemical and incineration processes such as:
- Sulphuric Acid Recovery
- Hydrogen Processes
- Incineration
- Liquid/Gaseous Waste
Watertube Boilers
Designed similar to its HRSGs, but are often refractory lined, and typically have tubes that can handle dirtier flue gasses than in the power generation industry. Applications that would use a watertube waste heat boiler are typically refinery processes such as:
- Fluidized Catalytic Cracking
- Coke Calcining
- Sulphur Recovery
Air Cooled Heat Exchangers
Our field erected induced draft air cooled heat exchangers are designed to provide efficient cooling for power generation, petrochemical plants, data centers, and other industrial processes. Customized designs and on-site assembly of these coolers allow for maximum flexibility in footprint and capacity for each customer. These are an effective solution for high-capacity, closed loop cooling of water, glycols and other refrigerants.
Advantages
Our air-cooled heat exchangers stand out with two key advantages: larger, more efficient fans and field-erected structures.
Advantages of Field-Erected Structure
- Lower costs for materials and labor
- Lower shipping costs and limitations
- Every component is designed and fabricated from off-the-shelf products
- No on-site welding required
- Large open fan decks for easy inspections and maintenance
- FRP or steel structure
- Design specifically engineered to meet project needs and reduce capital costs
Advantages of Larger Fan Assemblies
- Drastically less power consumption per volume of air compared to smaller fans
- Fewer fans and motors mean less maintenance and easier operation
- Lower material costs due to reduced fan quantity
- Induced draft system allows for more uniform air flow across the heat exchangers
- Smaller fan assemblies are available to meet specific customer and project needs
Our Services
- Over 65 years in the industrial cooling business offering engineering, procurement, and construction services
- Full turnkey engineered solutions that include supply and installation of the tower, electrical connection, exterior piping and foundation supports
- Four fabrication shops in North America (Alberta, Arizona, Minnesota and Texas)
- Full set of engineered drawings and 3D models
- Analytical and CFD analysis to ensure reliable cooling in all applications
