Product Features :
The circulating electric heater is used to heat the flow medium by forced convection. It is composed of an immersed electric heater mounted in a pressure vessel. When working, the flow medium is pumped into the heating chamber by pump to heat. The heated medium flows out at the other end of the heater, which is a heating method of forced circulation through the pump.
Small size, high power, circulating heater internal mainly immersion heater, maximum power of 1MW.
Fast heating speed, high temperature control precision and high thermal efficiency.
Wide application range and strong adaptability : The circulating heater can be used for explosion-proof or ordinary occasions. Its explosion-proof level can reach B and C levels, and its pressure resistance can reach 20 MPa.
High heating temperature : The circulating heater is designed to operate up to 650 ° C.
Long life, high reliability : circulating heater for different purposes designed corresponding power load, and the use of multiple protection, making the heater safety and life greatly increased.
Application areas :
Various water heating, including water heating in civil toilets and industrial process water heating.
Hydrocarbon heating, including heat transfer oil, fuel oil, asphalt, paraffin and so on.
Heating of cleaning machine and ice melting tank, including NaOH solution and various detergents.
Air heating, suitable for a certain pressure, some powder drying, chemical processes and spray drying.
Heating of steam.
Application scenarios :
Main parameters :
Pipe : Stainless steel
Insulating material : high purity magnesium oxide powder.
Heating wire : Ni8OCr20 nickel wire
Diameter : Φ5mm-Φ25mm
Diameter tolerance : -0.02mm-0.08mm
Tube length : maximum length 3000mm
Tube length tolerance : ± 5 %
Appearance requirements : smooth surface, no scratches, no spots, no depression
Unheated length : Customized on demand
Watt density : max. 40W / cm2
Power tolerance : ± 10 % ( ± 5 % -10 % ). )
Appearance temperature : tube temperature maximum temperature 927 °C
Component temperature : maximum heating temperature
Connector temperature : maximum temperature 260 °C
Connection voltage : customized on demand
High voltage strength : minimum 800VAC heating coil voltage maximum 1250V
Insulation resistance : ≥ 5MΩ ( 500VDC )
Leakage current : ≤ 0,5 mA ( 253 V AC )
Electrical performance : leakage current less than 0.5mA
More selection :
Outer pipe material : 304, 321, 316, 310 stainless steel
Heating wire : Ni80Cr20 nickel wire
Insulation material : high purity magnesium oxide powder
Lead material :
Glass fiber ( temperature resistance 320 ° C )
High temperature glass wool ( 600 °C )
Teflon ( heat resistance 260 ° C )
Silicone rubber ( temperature resistance 180 ° C )
Ceramic beads ( temperature resistance 800 ° C )
Lead protection material :
Glass fiber casing ( 600 °C )
Silicone rubber ( temperature resistance 180 ° C )
Metal woven hose ( temperature 250 °C )
Corrugated metal hose ( 250 °C )
Sealing material :
Silicone rubber ( temperature resistance 180 ° C )
Epoxy resin ( heat resistance 315 ° C )
Ceramics ( temperature resistance 800 ° C )
