Electric Heating Steam Boiler
Description
Driven by the "dual carbon" goal, the Electric Heating Steam Boiler redefines industrial steam supply standards with its core advantages of zero emissions, high energy efficiency, and full intelligence. As a purely electric-powered steam solution, it completely eliminates the pollution risks and operational complexities of traditional gas/oil boilers, providing safe, precise, and sustainable steam energy for food processing, biopharmaceuticals, and high-end manufacturing. The following comprehensive analysis, covering its technological essence, value breakthroughs, industry adaptability, and empirical data, helps you make efficient decisions.
Working Principle
Electric Heating Steam Boilers mainly fall into two technical categories: resistance type and electrode type.
Resistance Type (Mainstream)
Current passes through specialized stainless steel or alloy electric heating elements, generating heat energy based on the principle of resistance heating. This heat energy is then conducted to heat the boiler water, converting it into saturated steam. The control cabinet adjusts the power input of the heating elements via contactors or thyristors.
Electrode Type (High Voltage, High Power)
Utilizing the conductivity of water, 6-20kV high-voltage electricity is directly passed into the water, using the water as a resistive element to generate heat. This method offers enormous power (up to tens of megawatts) and is suitable for large-scale district heating or industrial applications.
Product parameters
|
Model |
WNS 2-1.0-Y,Q |
WNS 4-1.25-Y,Q |
WNS 6-1.25-Y,Q |
WNS 8-1.25-Y,Q |
WNS 10-1.25-Y,Q |
WNS 15-1.25-Y,Q |
WNS 20-1.25-Y,Q |
|
|
Rated evaporation capacity (t/h) |
2 |
4 |
6 |
8 |
10 |
15 |
20 |
|
|
Rated wording pressure(MPa) |
1.0 |
1.25 |
1.25 |
1.25 |
1.25 |
1.25 |
1.25 |
|
|
Rated steam temperature (°C) |
184 |
193 |
193 |
193 |
193 |
193 |
193 |
|
|
Water-supply temperature (°C) |
20 |
20 |
104 |
104 |
104 |
104 |
104 |
|
|
Boiler volume (m³) |
7.2 |
8.2 |
14.5 |
16.2 |
19.8 |
26.1 |
30.5 |
|
|
Design efficiency (%) |
92 |
92 |
92 |
92 |
92 |
93 |
93 |
|
|
Applicable fuel |
Light oil,heavy oil,natural gas,Liquefied gas and urban coal gas |
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|
External size |
Length(mm) |
5084 |
6022 |
7151 |
7600 |
8360 |
9050 |
9650 |
|
Width(mm) |
2450 |
2700 |
2800 |
3000 |
3000 |
3200 |
3430 |
|
|
Height(mm) |
2380 |
2684 |
2882 |
3200 |
3200 |
3560 |
3570 |
|
|
Boiler weight (t) |
8 |
12.6 |
17.2 |
18.6 |
23.5 |
34.2 |
40.1 |
|
|
Diameter of main steam opening (mm) |
65 |
100 |
125 |
150 |
150 |
200 |
200 |
|
|
Diameter of safety valve (mm) |
40×2 |
50×21 |
65×2 |
65×2 |
80×2 |
100×2 |
100×2 |
|
|
Chimney diameter (mm) |
350 |
450 |
600 |
700 |
750 |
900 |
1000 |
|
Applicable Industries and Application Scenarios
The Electric Heating Steam Boiler has an extremely wide range of applications, covering almost all fields requiring steam:
- Laundry and Ironing: Provides pure steam for dry cleaning machines, dryers, ironing machines, and irons.
- Food Processing: Used in tofu machines, steamers, sterilizers, packaging machines, jacketed kettles, fermentation tanks, etc., ensuring food hygiene and safety.
- Biochemical Industry: Provides stable process temperatures for reaction vessels, mixers, and emulsifiers.
- Medical and Pharmaceutical Industry: Provides high-temperature sterilization steam for hospital sterilization supply rooms and preparation rooms.
- Apparel and Textile Industry: Used in printing and dyeing, finishing, and garment ironing processes.
Core Product Advantages
1. Environmentally Friendly and Zero-Pollution:
No combustion, no exhaust gas, no smoke, no residue, no noise; no need for chimneys or fuel storage areas.
Fully meets environmental and fire safety requirements, suitable for sensitive areas such as urban areas, industrial parks, and cleanrooms.
2. High Efficiency and Energy Saving:
Thermal efficiency reaches over 98%, with almost all electrical energy converted into heat.
Power-level control automatically adjusts the number of operating groups based on steam consumption, avoiding energy waste.
High-quality insulation reduces heat loss, ensuring rapid start-up and shutdown with low standby power consumption.
3. Multiple Safety Protections:
Equipped with water shortage protection, overpressure protection, leakage protection, overcurrent protection, over-temperature protection, and grounding protection.
Features a safety valve and pressure controller for dual pressure relief; automatic alarm and shutdown in case of fault.
The electrical control cabinet and furnace body can be separated, reducing the risk of electrical aging and improving operational safety.
4. Intelligent Fully Automatic Operation:
PLC/microcomputer touchscreen control with a Chinese/English interface; one-button start, requiring no dedicated personnel.
Automatic water replenishment, automatic heating, automatic pressure stabilization, and automatic fault diagnosis.
Supports precise pressure and temperature settings, ensuring pure and stable steam quality to meet high-standard process requirements.
5. Convenient Installation and Use
Compact structure, vertical/horizontal options available, small footprint, flexible layout.
No fuel approval required, simplified environmental inspection process, short installation cycle, and quick deployment.
Modular design of heating components facilitates easy inspection and maintenance, resulting in low maintenance costs.
FAQ
Q1: What is an Electric Heating Steam Boiler? What is its core function?
A1: An Electric Heating Steam Boiler is a thermal energy device that uses electricity as its sole energy source. It converts electrical energy into heat energy through electric heating elements, heating the water inside the boiler drum to produce high-temperature, high-pressure saturated steam. Its core function is to provide stable, clean steam for industrial production, commercial services, and other processes such as heating, sterilization, drying, and reactions.
Q2: Are the electric heating elements easily damaged? What is their lifespan?
A2: The lifespan of the electric heating elements is closely related to water quality and operating habits. If the water is too hard, leading to severe scaling, or if it is frequently dry-burning due to water shortage, the heating elements are easily damaged. Under good water quality and proper operation, the lifespan of a high-quality stainless steel or alloy heating element can typically reach 8,000-20,000 hours.
Q3: How to perform daily blowdown? Why is blowdown necessary?
A3: Electric Heating Steam Boilers require blowdown at least once a day (the frequency should be increased during continuous operation). The purpose of blowdown is to remove sludge, scale, and other deposits accumulated at the bottom of the boiler, preventing impurities from clogging the water level gauge and heating tubes. It also reduces the boiler water concentration, decreases foam production, and improves steam quality. Blowdown should be performed under pressure (0.15-0.2 MPa) for better results.
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