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What is a double-drum fully automatic gas boiler, and why is it becoming more and more popular in the industrial field?

2025-07-17

With increasingly stringent energy efficiency and environmental protection standards, industrial boiler equipment is developing in a more efficient, intelligent and environmentally friendly direction. Among them, the double-drum fully automatic gas boiler has become an ideal choice for many users such as factories, hospitals, and hotels due to its high thermal efficiency, structural stability and automatic control capabilities.

1. What is a double-drum fully automatic gas boiler?
As the name suggests, a double-drum gas boiler is a structure composed of two drums (arranged up and down). It is generally a water tube boiler. The boiler is widely used in medium and large application scenarios that require a large amount of steam or hot water through water pipe circulation and flame heat transfer.

"Fully automatic" means that it has functions such as automatic ignition, automatic gas supply, automatic water supply, pressure control, alarm interlocking, etc., which greatly simplifies the operation process and reduces labor costs and operation risks.

2. The main structural components of the double-drum fully automatic gas boiler
Upper and lower drums: The upper drum is used to collect the steam-water mixture, and the lower drum is used to separate water and sediment.

Water pipe system: water is introduced from the lower drum and heated to generate steam.

Burner system: natural gas is used as fuel to achieve efficient combustion.

Automatic control system: equipped with PLC or touch screen, which can be unattended.

Energy-saving devices: such as economizers and condensers, further improve thermal efficiency.

3. What is the difference between it and traditional boilers?

Compare Projects Double drum fully automatic gas boiler Traditional coal-fired boiler
Fuel Type Clean Natural Gas Highly polluting coal burning
Thermal efficiency Up to 95% or more Generally 70%~80%
Environmental performance Low emission and low noise Lots of dust and high emissions
How it works Fully automatic control Mostly manual control
Security Multiple protection systems Relatively high security risk
Startup speed Rapid heating and steam output Slow startup
Maintenance frequency Automatic monitoring, low maintenance Frequent manual inspections

As can be seen from the above table, the double-drum fully automatic gas boiler is significantly superior to traditional boilers in terms of performance, safety, environmental protection and efficiency.

4. In what fields is it mainly used?
Double-drum gas boilers are often used in the following fields due to their large evaporation capacity and strong load regulation ability:

Chemical plants: provide stable high-pressure steam to meet the heating needs of reactors.

Pharmaceutical plants: used for Chinese medicine decoction and equipment disinfection.

Textile printing and dyeing: used for fabric pretreatment, dyeing and drying.

Food processing: such as milk sterilization, soy sauce brewing, soy product processing, etc.

Heating system: Central hot water system of large residential areas or commercial complexes.

Hospital/school: hot water supply and winter heating.

SZS25 25 tons double drum fully automatic gas boiler

5. What are the functions of fully automatic control systems?

Modern double-drum gas boilers are generally equipped with PLC intelligent control systems or industrial touch screen systems, with the following functions:

Automatic ignition/extinguishing

Automatic water supply, water shortage alarm

Gas pressure monitoring and regulation

Automatic steam pressure regulation

Overpressure, overtemperature interlock protection

Remote monitoring and data recording

These functions not only greatly improve the safety of use, but also save human resources.

6. What factors should be considered when purchasing double-drum fully automatic gas boilers?

When purchasing such high-value equipment, it is recommended to consider the following aspects comprehensively:

Evaporation demand: Select a matching boiler tonnage (generally ranging from 4 tons to 20 tons) according to the actual steam required by the production line.

Use environment: If the environment has strict requirements on noise and emissions, it is necessary to consider whether it has energy-saving and environmentally friendly designs such as condensing devices.

Manufacturer qualifications and after-sales: Choose a brand manufacturer with design and manufacturing qualifications and fast after-sales response.

Is the gas supply stable: It is necessary to confirm whether the local natural gas supply can meet the continuous use needs of the boiler.

Installation space and transportation channel: The equipment is large, and the installation location and transportation route need to be planned in advance.

7. How to maintain and maintain during use?
Although the equipment is fully automatically controlled, daily maintenance cannot be ignored. It is recommended to refer to the following maintenance cycle:

Daily inspection: burner, pressure gauge, water level, whether there is water leakage or gas leakage.

Weekly sewage discharge: Regularly discharge impurities from the boiler drum and water level gauge.

Monthly inspection: electronic control system, temperature control system and pipeline sealing.

Quarterly maintenance: clean the burner and check whether the heat exchange surface is scaled.

Annual maintenance: perform a deep maintenance of the entire system, especially the hot surface, valves, and controllers.

8. What is the future development trend?
With the advancement of the "dual carbon" goal, the core development directions of industrial boilers in the future include:

Evolving towards higher thermal efficiency and lower energy consumption, such as using condensing technology and air preheaters.

Combining with IoT to achieve intelligent remote monitoring and data analysis.

Promoting the use of green hydrogen or biogas to replace traditional natural gas.

Small modular design to improve the flexibility of boiler installation and deployment.

The double-drum fully automatic gas boiler has become an important part of modern industrial thermal energy equipment. It not only achieves breakthroughs in performance, but also meets the new generation of industrial needs in terms of environmental protection and intelligence. If you are considering updating your boiler system, you might as well make this efficient, safe and intelligent equipment a priority.

Guangdong Bao Jie Technology Co., Ltd.