Operating Principle
- The lance tube with a high-performance nozzle is moved into the flue-gas path as per a desired blowing pattern
- The unique dual-motor design allows independent and variable traversing and rotational speeds of the lance tube for targeted cleaning
- The accurate positioning of the lance tube is carried out by these gear motors with a high-resolution position sensor
- Oscillating operation without axial movement enables a higher cleaning effect without increasing water consumption at the same time
Technical Summary
Clyde Bergemann has several types of retractable sootblowers available for cleaning heat exchangers mainly within power, waste, biomass and industrial boilers. They are designed to deliver optimum results within the strict requirements of the different industries and will ensure trouble-free operation.
The SMART Helix Water is a powerful retractable sootblower with a focus on the selective cleaning of convective heating surfaces, using water in boilers fired with waste, biomass and RDF. These types of boilers often have low steam parameters for sootblowing. The SMART Helix Water is the most advanced and flexible on-load cleaning system for best cleaning results in the convection area of the boiler, with a unique dual-motor design which allows independent and variable traversing and rotational speeds. The speeds can be varied at any time for targeted cleaning. Through the precise control of the nozzle positioning with the so-called “Go-Stop-Clean-Go” mode, the targeted area between the tubes is cleaned with a focussed water jet.
- Cleaning Medium: Water
- General Application Areas: Superheater, Reheater
- Travel Range: 0.5 m – 8 m
- Cleaning Arc: Flexible
- Key Industries: Waste-to-Energy, Biomass, Other Industrial Processes
Key Features
- Fully automatic cleaning system using water as the cleaning medium
- Creep-resistant lance tubes with high performance, pressure activated nozzle for precise, zone-based cleaning
- Stainless-steel feed tubes, polished to minimise leakage at stuffing box connection with lance tube assembly
- Double-rack design for higher stability
- Two gear motors, one for the axial and one for the rotational movements, enabling the cleaning system to precisely position the water jet in the gaps between the heat exchanger tubes and perform the cleaning through its novel “Go-Stop-Clean-Go” technique
- Travel monitoring by two limit switches; third limit switch for identifying the reference start point
- The novel water control allows an immediate build-up and interruption of the water jet for cleaning
- Only the deposit surfaces are hit by the water jet and this is solely done at the time of cleaning
- Includes frequency regulated pump skid, inlet and outlet modules with state-of-the-art instrumentation and valve fittings
- Wall box with sealing elements corresponding to boiler pressure mode
- Sealing and scavenging air piping with dedicated fan (optional)
Product Benefits
- Increased plant availability due to reliable boiler cleaning, resulting in efficient plant operation
- Checks deposit between the boiler tubes regardless of changing fuel mixture or varying fuel quality
- Prevents fouling in the superheater and reheater areas
- Maximises thermal efficiency & reduces gas exit temperatures
- Reliable and simple to maintain
- Cleaning between the boiler tubes with a concentrated water jet to avoid thermal stress
- Instantaneous starting and stopping minimises water consumption
- Intelligent, flexible operation, in conjunction with SMART Convection (optional)
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