General information
7
APPLIANCE DESCRIPTION
Monobloc reverse flame fire tube super-heated water boilers with fully wet-bottom furnace. Built with tested quality steel
according to regulations in force and welded with automatic submerged arc methods. Suitable for liquid and gaseous fuels.
Complete with regulation and safety accessories for automatic operation.
The single front door is thermally insulated with refractory materials and is mounted on adjustable hinges, easily opened without
having to remove the burner; it is equipped with visor for flame control.
The smoke box is fixed with bolts to the back of the generator. It is equipped with smoke duct fitting, cleaning door and can be
dismantled.
The body is thermally insulated with high density rock wool mat, protected with stainless steel panels.
They are equipped with lower water side inspection opening (flanged hatch)
They use a single control panel in which the entire electrical wiring converges.
The control panel includes all the equipment required for a correct management of the boiler with fail-safe devices and circuits,
built with redundant technology in order to ensure maximum safety.
The appliance rests on a carbon steel profile base that ensures its stability.
Steam boilers
ASX
are certified both for liquid and gaseous fuels for steam production from 350 to 5000 kg/h at high pressure
(12-15 bar).
DESCRIPTION OF THE EQUIPMENT
The equipment described below is intended for the regulation and protection of super-heated water boilers pressurised from the
outside.
The range of safety accessories must be completed according to the type of system where the boiler is to be installed.
Below are the European Standards adopted for the manufacture of the electrical and safety equipment:
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List of equipment for super-heated water boilers(EN 12953-6).
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Requirements for safety and limitation devices of super-heated water boilers(EN 12953-9).
–
Requirements for application design of electrical equipment for boilers and furnaces(CEI EN 50156-1).
OPERATING PRINCIPLE OF THE HEATING SYSTEM
There are essentially two types of systems:
CONTROL AND REGULATION WITHIN PERMISSIBLE LIMITS
–
Continuous temperature detection system, which is used to regulate and keep the operating temperature within the boiler’s
permissible limits, directly acting on the boiler’s controls.
SAFETY AND PROTECTION AGAINST THE EXCEEDING OF PERMISSIBLE LIMITS
–
No. 1 - 2 safety valves built according to EN 4126-1 in compliance with PED Directive as safety accessory of IV risk category,
calibrated at the PS value of the pressurised boiler body, used to drain the maximum water flow rate if the limit pressure is
reached.
–
No. 2 Safety pressure switches complying with PED Directive as safety accessory of IV risk category, used to switch off the
burner with manual reset on the control panel if:
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Maximum limit pressure is reached.
-
Minimum limit pressure is reached.
–
No. 1 safety pressure switch complying with PED Directive as safety accessory of IV risk category, used to switch off the burner
with manual reset on the control panel if the flow pipe water reaches the limit temperature.
Cooke Industries - Phone: +64 9 579 2185 Email: [email protected] Web: www.cookeindustries.co.nz