Electric heaters are shell and tube heat exchangers that use electric power which is converted to heat. They can be used when there is not any other heating source available for heating lubrication oil or water.
MAXWOR’s Electric Heaters Series
Maxwor’s Electric Heaters are designed to work with high viscosity crude oils as well as lubrication oils and water when there is no other heating medium available. Their flexible design and wide heat range (from 9 kW to 225kW) makes them well suited for any application where backup or booster heating is required or where electric power is the cheapest or the only available power source.
- Long life removable ceramic core heating elements are designed for optimum trouble-free service and ease of maintenance. A failed electric element can be replaced without the need to isolate and drain the heater.
- Low surface load (W/cm2) reduces the risk of damaging highly viscous fluids while improving flow ability of fuel oils. As a result, heating elements are protected from over-heating and failing prematurely.
- Heavy fuel Oil: 1.5 W/cm2
- Lubrication Oil: 1,5 W/cm2
- Fresh Water: 3,0 W/cm2
- Optional, 3 to 5-steps startup configuration with all controls prewired.
- Pump Interlock function as a standard.
- Selector switch for operation based on viscosity signal (4-20mA) prepared by shipyard.
- All Maxwor Electric Heaters from EH range are fitted with an adjustable temperature controller (with PT-100 temperature sensor) and an overheating thermostat.
- Warranty 24 months after delivery.
- Each unit built by MAXWOR undergoes hydraulic and electric testing.
Capacity
MAXWOR offers a wide range of electric heaters with capacities starting at 9kW to 225kW. Custom designs are also available upon request.
Materials
Materials; material thickness is higher than that required by the relevant design code. Stainless and carbon steel are used. Heating elements are made of high quality ceramic material.
Design parameters
Industry leading heat exchanger software is used to find the required heat exchanger dimensions based on customer requirements. Additional standard design parameters are listed below:
Design pressure: 16 barg
Test pressure: 24 barg
Design Temperature: 160 oC
Flanges PN16 DIN 86030/EN1092-1
Accessories of MAXWOR’s electric heaters upon request;
• Safety valve
• Drain valve (AISI-316)
• Air vent valve (AISI-316)
• Thermometers (L-form),2pcs
• PT-100 sensor
• Safety thermostat (Marine type)
Approvals
All electric heaters are compliant with European Legislation covering CE markings/PED approval and can be certified by various classification societies upon request.
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