Industrial or laboratory furnaces, incinerators and ovens

Tender description

The University require a supplier to design, manufacture, supply, install and commission an electric furnace at the Advanced Forming Research Center (AFRC). Furnace shall comply with aeronautic, automotive and industrial standard (e.g. AMS 2750E, GE S291 and RPS 953). Note: furnace will be positioned in a workshop environment (dust and vibration). Furnace: — door opening: Width: 2 800 mm, Height: 2 000 mm, Loading height Circa 1 200 mm (TBC), — useful zone: Width: 2 700 mm, Height: 1 500 mm, Length: 4 000 mm, — footprint: 7 m long x 4 m wide, — maintenance of heating rods through the front door, — useful zone starts at top of the fire dogs (on grid), — noise shall not exceed 80 dba in average within an 8 hours shift, — insulation thickness should be calculated to ensure that the temperature on external wall of the furnace to be no greater than 40 ºC — shall not contain asbestos or Ceramic Fibre Refractory (CFR), — max temp: 1 200 ºC, — operational temp: 4 000 ºC, 750 ºC, 850 ºC, 950 ºC, 1 050 ºC, 1 150 ºC. — opening time of door: shall not exceed 10 s, — furnace will have vent to external atmosphere, — furnace accuracy: +/- 10 ºC in production (+/- 7 ºC at commissioning), — furnace will have quartz viewing window on the left and right sides of the furnace for both viewing and use with optical instrumentation. Windows must be in line to allow optical path, — furnace window slots will have the option of being ‘blanked out’, — heating ramp at full charge shall be 200 ºC/hour, — furnace shall have stairs, — furnace will have 2 heating zones one at front and one to rear, — shall be equipped with a high temperature fan to assist in heat treatment and low temperature operations, — provision for inert atmosphere (e.g. N2 or Ar). Parts: — max diameter: 600 mm, — max length: 4 000 mm, — max weight: 1 000 kg, — maxi load in the furnace: 3 parts, 3 000 kg in total. Instrumentation (thermocouples): — number of TUS thermocouples shall be minimum 14, or 9 + 5 x (number of zones — 1). The biggest number of those will be chosen. In addition to those thermocouples we should have load thermocouple according to procedure S291, — holes in furnace walls shall be available for additional thermocouples/gas analyser probe. Two holes per zone and must be sealable when not in use, — control thermocouples shall be positioned away from the walls or gradient area in a median thermal area to avoid offset. Type R/S thermocouples to be used, — instrumentation shall be cabled following AMS2750E, — safety relay will have two thresholds above the control setup: first to alert and the second to shut down power before the control system. Type R/S thermocouples to be used, — thermocouples shall have provision to insert reference SAT thermocouple. These thermocouples to be contained within a sheath to prevent against mechanical damage, — 12 additional thermocouples cables shall be installed between the recorder and a connection box on furnace, — Two 2 mm thermocouples shall be installed in-between each refractory layer and casing on each wall. Network architecture and automation: — HMI panel to be provided on control — supplier shall program furnace’s HMI views on the Press HMI, — must use standard communications protocol (e.g Profinet), — must have internal data logger and connectivity means for external data collection via MQTT or OPC UA, — shall provide a record system (Network Attached Storage) and link to connect to the AFRC intranet, — shall be able to record 3 months of data and be able to transfer for archiving (every 2 s). The system shall record: soak set point, ramp up set up per zone, heating power, — shall be most up to date version which offers capacity for future upgrading, — shall provide Siemens PLC and HMI software (Win CC) or equivalent, — at critical design review the supplier and AFRC shall define a system of recording considering many aspects: e.g. type of data, data’s importance, how data is recorded, sampling, format, — shall ensure the system incorporates comprehensive testing and diagnostic system to facilitate fault finding, — shall be able to identify different levels of fault reporting, — control of temperature within the furnace shall be done by PID via the PLC or local controller, — eurotherm controllers must be used.