Multi-Occupancy Building CIP (HTC Serline)

Completed

Fossil Fuels: Oil Gas and Coal(Oil and Gas, Refining, transport and storage of oil and gas)

Applied Research and Development

ENGINEERING AND TECHNOLOGY (Mechanical, Aeronautical and Manufacturing Engineering)
ENGINEERING AND TECHNOLOGY (Architecture and the Built Environment)

Not Cross-cutting

Project Contact
Cadent Gas

Network Innovation Allowance

Ofgem

01 May 2014

01 July 2015

14 months

£136,556

Technical Consultancy

London

Network Innovation Allowance

Project Contact, Cadent Gas

Project Contact, Northern Gas Networks
Project Contact, Wales and West Utilities
Project Contact, HTC Management Services Ltd

The objectives are to determine whether candidate lining systems can successfully line metallic small diameter risers and also have the ability to prevent leakage from slackened off jointsThe project will have to: Establish the degree to which the coating covers the complete inner surfaces of the rig pipeworkAssess the bonding strength of the coating, including after a number of different types of physical stress testAssess the integrity of the coating after some basic extreme temperature testingEnable basic screening, ranking and provision of ‘Go / No Go’ recommendations for future testing of candidate systemsHighlight further product development needsProvide learning that will inform the work to define appropriate standards and policy Establishing the lists of physical test criteria, to allow the performance comparison of the coating in relation to other systemsThe ability for the coating system to be applied to the mock riser rigs in a single working day

There are a number of high rise buildings across the country with internal gas risers. These risers, usually constructed of steel or copper, are coming to the end of their expected operational life, and to replace these using existing construction methods will be expensive, disruptive and time consuming. An alternative method to replace these systems is required. The proposed solution investigates the possibility of utilising a liner system that was developed in the water industry to line lead water pipes. It is believed this technology can be transferred to the UK Gas market to enable the remote lining of the internal pipe wall in HRB risers. The method would involve a small excavation being carried out at the base of the riser upright. Once the pipeline has been separated, a calculated measure of grit (dependant on length and diameter), is blown through the pipeline in order to clean the internal pipe wall. This would quickly be followed by warm air to ensure the polyurethane (PU) liner securely bonds to the internal pipe wall. The PU liner would then be blown through the pipeline in a forced air vortex up through the riser into the customer’s property. The forced air vortex technology allows injection of the mixed PU material into a carefully controlled air flow, allowing the air to carry the product quickly down the pipe, depositing the fast curing PU material to the dry internal wall of the pipe. It effectively uses the air stream as a channel and at the required position, creates turbulence to act as the application medium. Any overspray from the liner material would be collected in a pre-designed collection devices so not causing unnecessary mess to the customers property.Note : Project Documents may be available via the ENA Smarter Networks Portal using the Website link above

14/09/18