1100KW flange immersion electric heater of mineral insulated heating cable element can be used as a main part for the fluid heater such as gas heater (eg. hydrogen, nitrogen gas, air etc), liquid heater (such as conduction oil, industrial pure water, steam boiler, heavy oil etc.
Flanged electric heater is installed on the flange cover, adopting mineral insulated heating cable as the heating elements, according to the design specification of different heating media and the requirements of power configuration. It is inserted into the heating material. The heat generated by the heating element work is transferred to make heated medium temperature rise to meet the required process requirements. When the medium temperature reaches the set value required by the process, the control system adjusts the output power of the electric heater after PID calculation according to the temperature sensor signal, and realizes the temperature control of the resistive load of the heating element. Medium temperature is uniformly distributed to meet technical requirements. When the heating element is overtemperature or low liquid level, the heating element interlock protection device immediately cut off the heating power supply to avoid burning out the heating element to prolong the service life.
Two, characteristics of 1100KW flange immersion electric heater of mineral insulated heating cable element:
1. Mineral insulated heating cables are produced composing of high quality SS304 stainless steel seamless sheath, copper electric heating wire and high purity magnesium oxide powder.
2. The highest working temperature can reach 850 degrees. PID control system adjusts the output power of the electric heater according to the temperature sensor signal and calculation and controls temperature by loading the heating element resistive.
3. Heater efficiency is more than 95%.
4. Durable with a service life more than ten years. The interlock protection device can immediately cut off the heating power to avoid burning out the heating element during overtemperature or low liquid level.
5. Shape and power can be customized.
6. The connection mode can be flanged or threaded end face seal.
Three, application of 1100KW flange immersion electric heater of mineral insulated heating cable element
Flanged electric heater can be widely used in heating water, oil, air, nitrate solution, acid solution, alkali solution and low soluble metals (aluminum, zinc, tin, Babbitt alloy, etc.).
A pipe heater: it is mainly installed in the blowing pipe of the air heating system for blowing hot air. It can also be used as heating element of oven and electric furnace.
B Nitrate solution solution, oil, water heating: the electric heating element is welded to the flange used for heating in open and closed solution tanks and circulation systems.
C. Single-end heater: it is used for working in the heating medium that cannot be connected at both ends. It is suitable for hot core box and core shooter, mold and other equipment.
| Application | 1 | 2 | 3 | 4 | 5 |
| Medium or Heating Method | PH Value (Concentration %) | Pipe Material | Power Density | Recommended Highest Surface Temperature ℃ |
| (W/cm2) |
| Water or week acid or alkaline water | Fresh water | PH6-PH9 | Copper | 7.00 | 180 |
| Process water | PH5-PH9 2-3% | Passivated Stainless Steel | 7.00 | 650 |
| Week acid or alkaline solution | 5-6% | Incoloy | 7.00 | 870 |
| Soft water | | Incoloy/Stainless Steel Flange | 7.00 | 870 |
| Corrosive and higher viscosity solutions | Corrosive solutions | 5-15% | Stainless steel | 3.50 | 650 |
| Medium corrosive solutions | 10—25% | Incoloy | 3.50 | 650 |
| Heave corrosive solutions | 30-60% | Incoloy/Stainless steel flange | 2.30 | 870 |
| Special water | Steam boiler | | Incoloy/copper | | 870 |
| Oil | Low viscosity oil | | Carbon steel | 3.50 | 400 |
| Medium viscosity oil | | Carbon steel | 2.30 | 400 |
| High viscosity oil | | Carbon steel | 1.00 | 400 |
| Oil storage | Lube oil | | Carbon steel | 2.30 | 400 |
| Air, gas and steam | Low temperature | | Stainless Steel | 3.50 | 650 |
| High Temperature | | Incoloy | 3.50 | 870 |
Four, model selection of flange electric heater
1. The flange
Material: carbon steel, stainless steel
Size: 3", 5", 6", 8", 10", 12", 14", 16", 18" or larger
Pressure class: 150, 3001B ANSIB16.5/HG20592-97
2. Heating element
Materials: stainless steel, copper, Cu-Ni etc
Power density: 1, 2.3, 3.5, 7, 11W/cm2
Pipe diameter: 8, 10, 12, 16, 20mm. Conventional pipe diameter is 12mm
3. Others
The junction box has heat dissipation area at high temperature
Operating voltage: 0-690V
4. The junction box
Moisture-proof type
Explosion-proof, moisture-proof type
5. Selection guidance
According to the process conditions, the parameters of the heater should be determined, such as: heater flange, heating cable specification and power density, etc.
Reasonable choice can save cost and make good use of prolonged service life of the heater.
The following guidelines are provided to facilitate users’ selection of heaters, but final solution should be calculated, designed and confirmed by engineers of MICH.
The choice of heater is determined by the following factors:
1. Density, viscosity, specific heat and corrosiveness of the heated medium;
2. Contamination of heating elements to the medium;
3. Anticorrosion and oxidation resistance of heating element sheath;
4. The power density of the heating element, namely the power per unit area;
5. Maximum surface temperature of the heating element, which is determined from 1 to 4.
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1100KW Flange Immersion Electric Heater Carbon Steel Images
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