1. Adapt to working conditions:
For high-risk or high-pressure media that cannot be directly heated, media that are particularly viscous and unsuitable for direct heating, and lines that require high-temperature steam.
2. Introduction:
The heat carrier conductive electric heater belongs to the process heating system, that is, the flowing heat carrier (commonly having heat transfer oil or water) flows into the heater inlet through the pressure of the pump body or other means; during the flow in the heater cylinder, the passage The baffle plate absorbs the heat energy generated by the electric heating element to the maximum extent, so that the heat transfer oil reaches the process demand temperature, and then flows out from the heater outlet. After the heat transfer oil flows out, it enters the heat exchanger inlet and flows out of the heat exchanger outlet into the recirculation system. This system ensures that the instantaneous temperature of the outlet meets the process requirements.
3, model name:
GF-380/NO. (-Ex)
| | | |____________ Explosion-proof
| | |___________ _Power (KW)
| |_____________ ___Voltage (V) (★ Voltage can be customized according to actual voltage)
|________________________________Tubular electric heater
4, performance parameters:
Rated voltage: according to customer requirements
Rated power: 10KW-1000KW (more than 1000KW can be customized)
Heat carrier: heat transfer oil / water
System configuration: heater, heat exchanger, pump, expansion tank, etc.
Maximum temperature of heat carrier: heat transfer oil ≤350°C water ≤100°C
Maximum shell temperature: heat transfer oil ≤ 280 ° C water ≤ 80 ° C
Application: Explosion-proof zone III and non-explosion-proof zone
5, selection (taking heat transfer oil as an example)
model
Heat carrier
Power KW
Pump flow m3/h
Motor power KW
Import and export size
GF-380/60
Heat transfer oil
60
16
4
DN40
DN40
GF-380/100
100
25
7.5
DN40
DN40
GF-380/150
150
35
5.5
DN50
DN50
GF-380/200
200
50
5.5
DN50
DN50
GF-380/250
250
55
7.5
DN50
DN50
GF-380/300
300
63
15.0
DN50
DN50
GF-380/400
400
87
15.0
DN60
DN60
GF-380/600
600
130
22.0
DN60
DN60
GF-380/1000
1000
250
75
DN60
DN60
6, commonly used heat carrier - heat transfer oil model and parameter reference
Indicator
model
320
Exterior
Light yellow transparent liquid
Density (20 ° C) g / cm3
0.857
Kinematic viscosity (40 ° C) mm2 / s
31.48
Lightning (opening) °C ≥
210
Acid value mgkOH/g ≤
0.02
Carbon residual carbon % ≤
0.02
Distillation range 1% °C
320
Freezing point °C
-18
Specific heat KJ/Kg °C
200°C 0.067
250 ° C 0.720
320 ° C 0.797
Thermal Conductivity
W/mc
200 ° C 0.1146
250°C 0.1090
320 ° C 0.1025
Expansion coefficient (1/°C)*16
320 ° C 7.25
Maximum operating temperature °C
320 ° C
7. Design and product advantages
1) High heating efficiency and long service life of electric heating elements. A number of baffles are placed inside the heater according to the actual working conditions to maximize heat exchange efficiency.
2) Analyze the reasonable distribution of the flow guiding device by modeling, and the thermal efficiency is high.
3) Reasonable structure and high safety performance. Our company can produce ordinary electric heaters and high protection explosion-proof electric heaters, and has obtained a national explosion-proof production license. In the design and production process, the requirements for explosion-proof surfaces are more stringent. For heat that is prone to expansion or dusty environments, we will specially design the heater to further ensure its safety and reliability.
4) The control logic and control system are advanced and stable, with high control precision, and can realize various chain and PLC control such as temperature, flow and pressure.
5) The device is self-protected to prevent damage to the heating element in the event of an accident such as a sudden drop in traffic.
