Boiler Surveys and Inspection
Our team of highly qualified and experienced personnel offer a full and comprehensive world-wide inspection and reporting service for industrial and marine boiler plants, turbines, steam chests and valves using state-of-the-art inspection equipment and procedures.
Fibre Optic Inspections
Apart from normal visual inspection, internal tube inspections are carried out using fibre optic equipment, which is fitted with a video copy processor capable of recording and printing any frame displayed on the screen.
The inspection process can include various NDT procedures such as:
- Magnetic particle inspection
- Ultra-sonic thickness gauging
- Hardness testing
- Tensile testing
- Replica grain analysis
Reports and Inspections
The reports generated from inspections can form the basis of repair specifications used for classification and underwriting requirements or forming a database for future condition monitoring. General marine plant can be surveyed using the following:
- Optical alignment
- Vibration analysis
- Thermo graphic analysis
- Analysis of lube oil
Boiler Troubleshooting and Modelling
By adopting a scientific approach to troubleshooting Harris Pye Engineering are able to resolve issues regardless of the exclusivity and complexity, including efficiency improvement and redesign whilst still maintaining a remarkably high success rate.
Our boiler performance computer modelling facility enables us to setup a simulated model of a boiler and assess an infinite number of operating variables.
The effect of major changes in the heating surface or boiler geometry can be assessed in a matter of minutes, making this equipment an extremely powerful problem solving tool.
Boiler Design, Tender Preparation, Contract and Site Administration
We are specialist boiler designers, constructors and problem solvers. Our team has built and designed boilers for some of the largest boiler companies in the world including B&W, N.E.I and ICAL.
Many of the problems inherent to a boiler plant are often caused by errors of judgement and short cuts taken in the original design of the boiler. By correctly specifying the equipment from the outset the Group are able to prevent such problems from occurring. In addition, our independent assessment of the plant can identify design flaws which can be rectified prior to the boiler coming on line.
If you are planning on purchasing a new boiler we are happy to liase with you at all stages of the boiler construction. We can either design and build your new boiler from scratch or operate independently in the supervision of its design and construction. This would include the following stages:
- Tender preparation
- Design appraisal and assessment
- Contract and site supervision
- Commissioning of the plant
- Personnel training
- Ongoing support
Boiler Circulation Analysis
Uniquely we are the only steam engineers globally who can independently assess the internal water circulation of any sub-critical boiler.
Our computer based circulation facility has been extensively field tested with both conventional primary element flow measurement equipment and by radioactive tracer techniques carried out by the Australian Atomic Energy Commission.
Harris Pye Steam Boilers
These boilers, which are intended primarily for use on marine installations, can easily be adapted and modified for use in any number of applications which have a requirement for power and / or process steam.
Each boiler package will be customdesigned to meet the specific requirements of individual customers. We can undertake and complete on an inhouse basis, every aspect of the design of these modules. These include but are not limited to – thermal design and associated activities, skid and module design and layout including stress analysis, as well as naval architecture requirements.
Harris Pye Engineering will be responsible for all aspects of design engineering, manufacture, installation and commissioning, including aftercare of the boilers and all associated module plant and equipment.
All boilers are designed and manufactured in accordance with ASME 1 / ABS design codes, as well as being ISO 9001 certified.
The boilers and associated equipment are available in either fully assembled or flat pack form from the Harris Pye Engineering manufacturing facilities in the UK, China, UAE, Singapore or Brazil to service the emerging FPSO markets in these regions.
Finned Tube Services
Harris Pye Engineering can offer comprehensive design and manufacturing facilities for both plain tube and extended surface exhaust gas economiser assemblies. Extended surface configurations include single and double ‘H’ gilled, helical wound and pin type.
Helical Solid Fin
Helical solid fin tube is produced on state of the art high frequency spiral fin tube welding machines. Tube sizes range from 25 mm to 115 mm OD and can be found with a range of fin heights ranging from 10-25 mm on varying pitches, covering virtually all configurations found in marine service today.
Pairs of parallel shaped steel fins are resistance welded to the single pressure tube surface under carefully controlled conditions. The purpose built welding machine ensures precision indexing along the entire length of the tube and exact parallel attachment.
Steel ‘H’ fin was introduced in the 1950s due to the requirement for reliability in dirty and potentially corrosive environments, specifically associated with waste heat units fitted to the uptakes of large diesel engines. With deteriorating fuel quality prevalent this is particularly crucial to the marine industry.
The ‘H’ design reduces draft loss and allows straight-through flow of gas over the unit. Both these factors facilitate a self-cleaning effect, producing a considerable reduction in fouling and the potential for damaging and sometimes catastrophic soot fires. The compact design of these units can realise a 50% saving in space compared to plain tube designs, another important consideration in the ever increasing necessity for space and weight savings.
At Harris Pye Engineering we place the most stringent quality requirements on our products and services.
Our highly skilled and experienced engineers ensure that all stages of programming and works undertaken are subject to, and comply with, all of the latest class and quality assurance regulations and are guaranteed accordingly. Together with our promise of 24-hour worldwide service our customers are confident that the can completely rely on Harris Pye Engineering in all situations.
Extended Heating Surfaces
Harris Pye Engineering offers comprehensive design and manufacturing facilities for both plain tube and extended surface exhaust gas economiser assemblies. Extended surface configurations include single and double ‘H’ gilled, helical wound and pin type.
HP Economiser Range
The ‘HP’ Economiser range is specifically designed to recover the waste heat contained within boiler exhaust gases and to transfer as much energy as possible to the incoming boiler feed water stream by pre-heating the water prior to its entry into the boiler. The design and construction of the HP Economiser high efficiency heat exchanger lends itself to installation into most boiler exhaust gas outlet ducts. HP high efficiency tube banks are purpose designed units constructed from selected finned steel tubing manufactured on Harris Pye’s own specialised in-house “Spiral” and “H” type tube finning machines.
Installation of a HP Economiser Provides Many Advantages:
- Reduced energy costs
- With efficiency each percentage the system gains it provides the equivalent percentage saving in fuel usage. I.e. an increase in efficiency of 6% equates to a 6% saving in fuel costs
- Assists with meeting mandatory energy efficiency audit and reporting targets
- Designs are suitable for most fuels
- Less fuel burned results in lower emissions
- Lower CO2
- Lower NOX
- Lower particulates
- Provides the possibility of a carbon credit trading offset for some operators
HP Economisers are designed and constructed under strict ISO Quality Assurance to meet the highest International standards. Construction can be compromised from standard carbon steel or high corrosion resistant materials allowing for the highest possible heat recovery with the longest life expectancy, this enables the continued minimisation of your energy costs.