High-voltage electrode boiler technology analysis: principles, advantages and application panorama

1. Technical principle: thermal energy conversion between high-voltage electricity and water

The high-voltage electrode boiler uses the conductive properties of water to achieve efficient heating by directly passing 6-35 kV high-voltage electricity into water. Its core mechanisms include:

Water resistance heating: Pure water is not conductive, and electrolytes need to be added to increase conductivity. When current passes through the water body, Joule heat is generated, and 100% of the electrical energy is converted into thermal energy.

Stepless regulation: By frequency conversion to control the circulating water volume or electrode contact area, 10%-100% load stepless regulation is achieved, the response time is as short as 5 seconds, and the delay of 20-30 seconds can achieve stable output.

Structural classification:

Immersion type: The electrode is directly immersed in water and needs to be insulated. It is suitable for low conductivity (100μs/cm) scenarios and low steam salt content.
Jet type: Water is sprayed to the electrode through a nozzle, and no boiler cylinder insulation is required. It is suitable for high conductivity (1700μs/cm) scenarios and has a large circulating water volume.

2. Technical advantages: high efficiency, flexibility, and low carbon

High efficiency and energy saving: thermal efficiency is over 99.5%, there is no superheater steam emission loss of traditional boilers, and the startup is fast (it only takes tens of minutes from cold to full load).

Space and cost optimization: the power of a single unit can reach 80MW, and the volume is only 1/10 of the traditional boiler of the same power, eliminating the low-voltage transformer and reducing the initial investment.

Environmental protection and safety: no combustion emissions, adopting a neutral point ungrounded design to avoid arc risks, equipped with more than 10 protection functions such as overtemperature, pressure, and three-phase imbalance.

Grid friendly: Utilize valley electricity through heat storage mode, balance peak and valley loads, and help renewable energy consumption.

3. Application scenarios: full coverage from industry to people's livelihood

Thermal power peak regulation and nuclear power assistance:

In Lingwu Power Plant, Ningxia, 12 50MW electrode boilers have achieved the world's largest electric boiler installation, meeting the emergency heating needs of 700,000 households.

Provide auxiliary boilers for the first phase of CGN Zhaoyuan Nuclear Power Project to replace imported equipment and ensure the safety of nuclear power unit startup.
Clean heating:
The Dunhuang renewable energy heating project is equipped with 4 40MW electrode boilers, covering a heating area of 1.5 million square meters and providing heating to 38,000 people.
The Shanghai Lingang Science and Technology Headquarters Bay project uses 2 6MW electrode boilers, combined with a heat pump system, to achieve regional combined cooling and heating.
Industrial heat utilization:
The Huayu Wine Project uses a 10.5MW electrode boiler + 650m³ energy storage device to reduce brewing energy consumption and improve economic benefits.
In the production of lithium battery diaphragms for new energy vehicles, 5MW electrode boilers meet the demand for high-purity steam and help industrial upgrading.
Minerals and Chemicals:
The Shenhua Coal Bulianta Project uses 2 3.85MW electrode boilers to solve the heating needs in the mine water standard improvement and treatment.
The Longxing Mining Project deploys 2 24MW electrode boilers to support the clean heat use of the fluorine chemical industry chain.

4. Technological breakthroughs and industry recognition

Domestic substitution: The high-voltage electrode boiler independently developed by China Energy Construction Hangzhou Huayuan Frontline fills the domestic gap, obtains 1 invention patent and 17 utility model patents, and is selected into the recommended catalog of energy-saving technologies of the Ministry of Industry and Information Technology.
Scaled application: Cumulative supply of more than 200 units (sets), with a total power of more than 5,000MW, covering 23 provinces across the country. Typical projects include Zhangye 4 million square meters of thermal storage heating cluster, Changchun Wure 3×40MW thermal power peak regulation project, etc.
International benchmarking: The technical parameters are comparable to international brands such as the US CB boiler, but with lower costs and faster response, becoming a Chinese business card in the "Belt and Road" energy cooperation.

5. Future Outlook: "Thermal Power Hub" in the Zero-Carbon Era

With the advancement of the "Dual Carbon" goal, high-voltage electrode boilers will continue to exert their strength in the following areas:

Photothermal energy storage: Provide 45MW molten salt electric heaters for the 1GW photothermal + photovoltaic project in Turpan, Xinjiang, to improve peak capacity and energy storage efficiency.
Low-carbon park: Through the "green electricity + electrode boiler + heat storage" model, the park achieves cogeneration and promotes the construction of zero-carbon factories.
Hydrogen energy coupling: Explore the coordinated operation of water electrolysis hydrogen production and electrode boilers to build an "electricity-heat-hydrogen" comprehensive energy system.
High-voltage electrode boilers are not only an innovation in heating technology, but also a key fulcrum for the low-carbon transformation of the energy system. Its high efficiency, flexibility and safety are reshaping the energy utilization methods of industry and people's livelihood.

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Fangkuai participates in the preparation of high-voltage electrode boiler standards

The "Technical Requirements for High-voltage Electrode Steam Boiler Systems" (T/CIET 1051-2025) has been released to the public, and Fangkuai Boiler was invited to become the main drafter of the technical requirements.

The standard specifies the classification, typical structural types, parameter and model compilation, materials, performance, design, manufacturing, inspection and testing, packaging marks and random documents, installation, commissioning, operation and maintenance, and quality responsibility of high-voltage electrode steam boiler systems. It is applicable to electrode steam boiler systems that directly use 6 kV to 22 kV power supplies.
The release of this standard is timely. With the continuous deepening of the national dual-carbon policy and the support of the power grid system consumption policy, more and more industrial steam users have turned to truly "zero-emission" electrode boiler products. However, the standards for electrode steam boilers in society have been in a "missing" state for a long time, and the performance indicators of industrial boilers need to be applied or referred to. Fangkuai has a full understanding and grasp of the quality control and stable operation of electrode boilers through continuous market development and long-term customer service. The data in this standard contains "Fangkuai wisdom" and "Fangkuai experience".

Holding the flag and moving forward, leading the new journey. Fangkuai electrode boiler sets off again on a new journey!

The following are some case studies:

Fangkuai Boiler: Wuliangye's Road to a "Zero-Carbon Distillery"

With the layout and implementation of the country's "dual carbon" goals, Yibin Wuliangye Group, a famous liquor brand, has formulated a strategic plan for a "zero-carbon liquor company" and a comprehensive energy plan for the "14th Five-Year Plan". In the process of deeply promoting energy transformation, Wuliangye Group has joined hands with Fangkuai Boiler to provide effective strategic support for the implementation of the goal of "zero-carbon distillery".
In May 2025, three 20-ton low-nitrogen boilers from Fangkuai have been fully in place and are operating in compliance with standards. The bright and spacious boilers on site stand quietly on the equipment platform; the beautiful pipes and clean ground are like the "boudoir" of a girl waiting to be married; the low-frequency and quiet operating decibels are like the "insect chirping" from the forest. It can be said that the operating effect of Fangkuai products is "amazing". Walking in the factory area of Wuliangye Hongba New Park, you can see Wuliangye's environmentally friendly ecological wetlands, with clear water and green banks, fish swimming in the shallow bottom, and full of vitality. While appreciating this boundless beauty, it is easy for us to understand why Wuliangye joined hands with Fangkuai Boiler. Reducing carbon emissions and pollution, and improving the industrial chain management mechanism based on the full life cycle carbon footprint are the key tasks of Wuliangye Group.
Reducing carbon emissions and pollution has always been the highlight of Wuliangye. It took the lead in establishing a greenhouse gas emission management system in the industry, vigorously carried out supply chain carbon emission accounting and third-party certification, and gradually improved the industrial chain management mechanism based on the full life cycle carbon footprint. All of this is the key direction for Fangkuai to make in-depth improvements in the field of thermal energy in the future, and it is also the fundamental reason why Fangkuai can accompany Wuliangye for a long time.

Last year, Wuliangye also won the "2024 Carbon Peak Carbon Neutrality Green Development Excellent Case". Wuliangye's experience and achievements in leading the industry's green, low-carbon and sustainable development have been widely recognized by the society. It not only enhances Wuliangye's brand image, but also demonstrates its influence in the field of global green development. The bright road of this zero-carbon winery is assisted by Fangkuai's wisdom.

Fangkuai Boiler has once again won the "double gold mark" of the American ASME internation

Recently, Fangkuai Boiler Co., Ltd. successfully passed the rigorous joint inspection and review of the American Society of Mechanical Engineers (ASME) for recertification, and once again won the "U" and "S" double-stamp authorization certificates, continuing the excellent answer sheet of Chinese companies in international standard certification.
During the recertification review, the experts of the ASME joint inspection team conducted a detailed and rigorous review of the design specifications, process flow, quality control and other systems of Fangkuai Boiler. As the "golden pass" in the field of international pressure vessels, ASME certification represents the highest technical recognition in the world. This successful recertification marks that Fangkuai Boiler's design and manufacturing capabilities continue to maintain an international first-class level. Fangkuai has established a dual-track parallel system of ASME standards and national standards to ensure that each product can meet the world's most stringent quality requirements.

40T electrode boiler runs stably at full load at 4500 meters altitude, without altitude sickness!

"Carbon Seeking" the Roof of the World
Lack of oxygen

The oxygen content of the air is equivalent to 50% of the sea level

High and cold

The average annual temperature is -5℃ to -10℃

There is still frost at night in August

Strong wind

The annual average wind of level 8 or above reaches 150-200 days

More than 200 days in some wind outlet areas

Drought

The annual precipitation is less than 150 mm

And the evaporation is as high as 2200 mm

This is a true portrayal of the climate in Tibet

As one of the highest and most rugged areas in Tibet, Ali Prefecture is known as the "Roof on the Roof of the World". The two high-voltage electrode steam boilers designed and manufactured by Fangkuai Boiler Co., Ltd. for Zijin Mining's Ali project in Tibet have been successfully debugged and put into stable operation, becoming the leading electrode boiler demonstration project in the domestic area with an altitude of 4500 meters.
Technical advantages ensure high efficiency and stability

Faced with the influence of thin air, low air pressure, large temperature difference in high-altitude areas, and dust or humidity in some areas, Fangkuai Boiler launched an electrode steam system solution designed specifically for high-altitude scenarios, and designed the product in an all-round way to adapt to harsh environments. During this period, the Fangkuai team overcame many harsh natural conditions and construction difficulties such as high altitude, cold environment, strong wind construction, and long-distance transportation, and actively coordinated high-quality resources to ensure the smooth completion of the project.
Project progress and operation and maintenance management

After the main body of the boiler of this project was hoisted, the Fangkuai technical team formulated a full life cycle operation and maintenance plan: deploying a smart remote monitoring platform, accurate prediction, real-time monitoring, in-depth analysis, proactively discovering and blocking potential faults, greatly reducing manual maintenance costs, and reducing dependence on on-site maintenance personnel. It runs well in the high-altitude environment of 4,500 meters in Ali, successfully overcoming the dual test of terrain and environment.
Promoting energy transformation and regional development
Fangkuai Boiler has rich experience in extreme environment solutions in high-altitude cases. The successful delivery and commissioning of this project provides a better solution for clean heating in high-altitude mining areas, optimizes the energy structure of mining areas, and injects new momentum into the low-carbon development of Tibet. Fangkuai Boiler, with the light of technology, lights up the lamp of hope and illuminates the development path of more regions.

The national standard in which Fangkuai Boiler participated in the compilation is officially release

In the era of continuous innovation in the field of industrial equipment, the "Technical Specification for Comprehensive Energy Efficiency Evaluation of Industrial Boilers" (GB/T45542-2025), with Fangkuai Boiler Co., Ltd. as the core participating unit, was officially released. This epoch-making national standard will be fully implemented on October 1, 2025, marking a new era in the construction of the energy efficiency management system of my country's industrial boiler industry.
This standard condenses the collective wisdom of the industry's top experts. After fierce ideological collisions and strict review in many technical demonstration meetings, it finally formed an energy efficiency evaluation system that is both normative and forward-looking, which has a profound impact on the industrial boiler industry. On the one hand, it provides boiler manufacturers with clear energy efficiency design goals and technical improvement directions, optimizes boiler structure and combustion technology, and improves the energy utilization efficiency of boilers; on the other hand, it provides boiler users with scientific energy efficiency evaluation methods, formulates reasonable energy-saving transformation plans, and reduces energy consumption and operating costs.
As a well-known brand in the industry, Fangkuai Boiler transforms scientific and technological innovation results into standard releases, demonstrating its deep strength in technological innovation, product research and development, and industry insight. In the future, Fangkuai Boiler will continue to implement the standards and contribute "Fangkuai wisdom" to building a more standardized, efficient and sustainable industry ecology!

Fangkuai multi-energy coupling control system CS-TECH officially released

On April 12, the "Multi-energy Coupling Heating Technology Seminar" hosted by Fangkuai Thermal Energy was successfully held. The group president, vice president and other senior leaders and national industry experts gathered together to witness the shocking release of Fangkuai multi-energy coupling control system CS-TECH, marking the official entry of the heating industry into the "full-scenario smart energy collaboration" Industrial 4.0 era.
Defining a new paradigm for heating

In his speech, the president emphasized: Under the "dual carbon" goal, Fangkuai CS-TECH system successfully cracked the technical bottleneck of traditional single energy heating through AI smart algorithms. The system has achieved breakthrough results in improving comprehensive energy efficiency by more than 20% in actual applications, redefining the performance baseline of smart heating technology.
Core technology is authoritatively certified

R&D Director Ms. Lu Jie and her technical team demonstrated three innovative achievements of Fangkuai Thermal Energy:

● "Wing bidirectional enhanced heat exchange technology"

● Thermal efficiency exceeds 111.59% "Duao" series coupling technology

● "CS-TECH" multi-energy coupling control system

"CS-TECH" multi-energy coupling control system innovatively upgrades a single gas energy source to a multi-energy intelligent coupling solution. Director Lu emphasized: Under the joint promotion of policy guidance and market demand, multi-energy coupling solutions with higher energy saving and lower emissions will surely become the mainstay of future urban heating.
Field investigation witnesses strength

During the field investigation, the guests observed the actual operation effect of the CS-TECH system up close. Many experts commented: "Fangkuai CS-TECH system is not only a technological iteration, but also a paradigm revolution in energy service model. The smart energy ecological matrix it has built provides a replicable Chinese solution for city-level zero-carbon transformation."
Multi-energy coupling is a new opportunity. "How to couple more energy-saving and economical, how to make 1+1>2" will be the next important topic for the industry. As the creator of the CS-TECH system, Fangkuai Thermal Energy has completed the layout of full-scenario solutions around this technology. From residential heating stations to large public buildings, the CS-TECH system is building a more energy-saving and economical smart heating network worldwide. In the future, Fangkuai will continue to deepen the technological innovation of the CS-TECH system and work with partners to accelerate the arrival of the zero-carbon heating era.

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High-voltage electrode boiler technology analysis: principles, advantages and application panorama