220V/3KW Sheathed Electric Heater Manufacturer - Yangzhou Dary
Dary Electric recommends
1. Power: W, Kw 1Kw=3.412BTU/hr=1.36(horsepower)=864Kcal/hr
2. Weight: kg 1Kg=2.204621b(pound)
3. Flow velocity: m/min
4. Flow rate: m3/min, kg/h
5. Specific heat: Kcal/(kg℃) 1Kcal/(Kg℃)=1BTU/hr.°F=4186.8J/(Kg℃)
6. Power density: W/cm2 1W/cm2=6.4516 W/in2
7. Pressure: Mpa
8. Thermal conductivity: W/(m℃) 1 W/(m℃)=0.01J/(cm s℃)=0.578Btu/(ft.h.F)
9. Temperature: ℃ 1F=9/5℃+32 1R=9/5℃+491.67 1K=1℃+273.15
220V/3KW Sheathed Electric Heater Manufacturer Supply Technical Parameters:
Rated voltage: Single phase 220V Three phase 380V
Surface heating power: Type 4,5 ≤1.8W Type 6,7 ≤0.7W
Heat transfer temperature: ≤300℃
Working medium: Mineral oil
Working pressure: ≤0.8Mpa
Product Introduction:
The electric heater is connected to the oil tank body by flange. The sheath isolates the heating core from the heated oil. When replacing the electric heater, there is no need to drain the oil from the tank. Simply pull out the heater core and replace it with a new one, making maintenance convenient.
The electric heater has a large contact area with the heated oil, low surface power, no carbon deposition, and the oil will not carbonize due to local high temperature. It has long service life, safety, and reliability.
The heating tube is made by inserting electric heating wire into an outer tube (carbon steel tube, titanium tube, stainless steel tube, copper tube), filling the gaps with magnesium oxide powder that has excellent thermal conductivity and insulation, then shrinking the tube. After heat treatment (some tubes do not require it), it is processed into various shapes as needed by the user. It has simple structure, high thermal efficiency, good mechanical strength, and excellent adaptability to harsh environments. It can be used for heating various liquids and acids, alkalis, and salts, and is also suitable for heating low-melting-point metals for melting.
Application scope of tubular heater: Suitable for heating oil, water, chemical media, hot pressing molds, melting salts, alkalis, and low-melting-point alloys. It has characteristics such as high thermal efficiency, long service life, high mechanical strength, convenient installation, safety, and reliability.
Note: The above information and technical parameters are compiled and released by Yangzhou Dary Electric Co., Ltd.
