Anhui Huanrui is delighted to announce its successful bid and securing of the "Self-Regulating Heating Cable Framework Project" from the globally operating chemical new materials enterprise, Wanhua Chemical Group Co., Ltd. This achievement underscores Anhui Huanrui’s strong capabilities and the recognized quality of its products within the industrial sector. The framework agreement for the self-regulating heating cablesis a significant win that will position Anhui Huanrui as a key supplier for Wanhua Chemical's extensive industrial operations, ensuring reliable heat tracing solutions for critical piping and equipment. About Wanhua Chemical Group Wanhua Chemical Group Co., Ltd. is a global leader in the chemical industry, renowned for its commitment to innovation and sustainable development. Established: December 20, 1998 (Listed on Shanghai Stock Exchange, Stock Code: 600309). Headquarters: Yantai, Shandong Province, China. Core Business: The company’s operations are divided into five major industry clusters: Polyurethane, Petrochemicals, Fine Chemicals, Emerging Materials, and Future Industries. Global Reach: Serving major sectors including home furnishings, sports & leisure, automotive, construction, electronics, personal care, and green energy. Financial Strength: Reported operating revenue of RMB 175.4 billion in 2023, supported by a global workforce exceeding 27,000 employees. Global Footprint: Possesses major production bases in Yantai, Ningbo, Sichuan, Fujian, and Hungary, along with a worldwide innovation network spanning seven R&D centers (Yantai, Ningbo, Shanghai, Beijing, Shenzhen, Hungary, and Spain). Accolades: Recognized on the Forbes Global 2000 list, designated a National Technology Innovation Demonstration Enterprise, and included in the State-owned Assets Supervision and Administration Commission's list of "World-Class Demonstration Enterprises." The company also achieved the EU EcoVadis Gold Certification in 2021. Wanhua Chemical operates under the mission, "Advancing Chemistry, Transforming Lives," continuously innovating in the field of chemical new materials to provide comprehensive solutions for customers worldwide. Anhui Huanrui looks forward to a successful and lasting partnership with Wanhua Chemical, contributing to the safety and efficiency of its chemical processes through the provision of high-quality self-regulating heating cable products.

Urumqi, China – September 7, 2025 – anhui Huanrui Heating Manufacturing Co.,Ltd, a domestic leader in electric heating technology, successfully participated in the highly influential Xinjiang Petroleum and Chemical Industry Expo, held from September 4th to 6th in Urumqi. Focusing on energy security, green transformation, and intelligent manufacturing, the expo served as a prime platform for Huanrui to demonstrate its cutting-edge electric heating and system solutions for the petrochemical sector. High Demand for Domestic Technology The Anhui Huanrui booth was a hub of activity, drawing significant attention from industry professionals, including engineers, technicians, and purchasing managers from the petroleum, chemical, and power sectors. Visitors engaged in lively consultations, keen to learn about the performance and application cases of Huanrui's products. As a company dedicated to the R&D, manufacturing, and system integration of electric heating products, Huanrui fully leveraged the expo to showcase the stable operation and energy-saving features of its systems in complex, extreme industrial environments, particularly in regions like Xinjiang, which face harsh winters and significant temperature swings. Combatting Extreme Weather and Ensuring Safety In the energy industry, maintaining production continuity and equipment safety is paramount. Pipeline freezing and process temperature fluctuations are major challenges, directly impacting efficiency and operational costs. Anhui Huanrui’s electric heating systems are critical for: Antifreeze Protection: Heating and insulating essential equipment such as pipelines, storage tanks, and instrumentation to prevent media condensation and freezing. Process Stability: Maintaining stable process temperatures, significantly improving overall system reliability and energy efficiency. On-site customers engaged in in-depth discussions with Huanrui technicians regarding insulation and anti-freezing challenges specific to their projects. Leading with High-Performance Products Huanrui’s products demonstrated excellent environmental adaptability across the entire oil and gas supply chain—from acquisition and refining to storage and transportation. A standout exhibit was the 260 self-regulating heating cable  heating cable. Advanced Technology: Utilizes PTC conductive material and a high-temperature-resistant polymer sheath. Automatic Adjustment: Automatically adjusts output power to meet the complex heating demands of high-temperature operating conditions. Key Applications: Ideal for high-temperature environments such as oil refining units, high-temperature pipelines, reaction equipment, and asphalt storage tanks. This product sparked strong interest, highlighting its ability to ensure thermal stability while enhancing process safety and energy efficiency. Driving Green and Intelligent Solutions Huanrui also systematically presented its comprehensive application capabilities in harsh environments, feat...

Yulong Island, Shandong Province, China – October 27, 2025 – The Yulong Island Petrochemical Integration Project, a core initiative in Shandong Province's "14th Five-Year Plan" with an investment exceeding RMB 100 billion, is making significant progress. This world-class industrial base, centered on a 20-million-ton/year refining unit and major chemical production facilities (including 3-million-ton/year Ethylene and 3-million-ton/year Mixed Xylene), is crucial for upgrading the province’s chemical industry and accelerating its high-quality development toward an integrated "Refining-New Materials" value chain. Amidst the complex network of pipelines and towering storage tanks at the construction site, a critical technology is enabling operational success: Anhui Huanrui Heating Manufacturing Co.,Ltd self-regulating electric heat tracing cables. The Challenge: Ensuring Stability in a Megaproject The Yulong Island project requires reliable temperature control to manage the flow of low-temperature, high-viscosity, or easily solidified media (such as ethylene, propylene, and residue oil). Uncontrolled temperatures can lead to media solidification, pipeline blockages, and severe safety hazards. Traditional heat tracing methods are often high-energy consumers with low thermal efficiency. Electric heat tracing, however, has emerged as the ideal solution due to its precise temperature control, energy efficiency, and environmental advantages. The project’s diverse and demanding environments imposed strict requirements on the heat tracing system: Complex Environment Adaptability: Stable operation required in corrosive and explosive hazardous areas. Environmental & Energy Goals: Need for reduced energy consumption to meet cost-saving and "Dual Carbon" (decarbonization) objectives. Smart Management: Requirement for an intelligent heat tracing system for easy user management. Anhui Huanrui: The Core Solution to Temperature Control Anhui Huanrui supplied over 200,000 meters of its self-regulating electric heat tracing cables, providing essential pipeline antifreeze and process temperature maintenance across key zones of the Yulong Island project, including: Comprehensive Pipe Racks Chemical and Refining Tank Farms Residue Oil Hydro-processing Unit Ethylene Unit, Recovery Unit, and Propylene Pre-refining Unit Huanrui’s technology was chosen because its features precisely match the project's stringent demands: Feature Technical Advantage Project Benefit Self-Regulating Technology Utilizes PTC (Positive Temperature Coefficient) materials to automatically adjust power output based on pipe temperature. Prevents overheating, eliminates energy waste, and ensures process stability. Safety and Certification Comprehensive explosion-proof certification. Ensures stable operation in hazardous and potentially explosive areas. Green Operation High thermal conversion efficiency with zero pollutant emissions. Aligns perfectly with the Yulong Island project's green and low-c...

Resilience and Innovation: A New Chapter for Chinese Industry Faced with downward economic pressure, global industrial restructuring, and intensified market competition, China's economic development faces numerous challenges. Shrinking demand, rising costs, and a complex external environment have cast a shadow over many Chinese companies.However, rather than retreating, a number of companies have risen to the challenge, forging ahead, leveraging innovation to inject strong momentum into China's economic recovery and development. Technological Independence: Finding Direction in Confusion Although electric heat tracing technology is little known to the public, it plays an invisible supporting role in industrial production. From antifreeze and insulation of oil pipelines in extremely cold regions to the stable operation of high-speed rail water supply systems, from constant temperature control of chemical reactors to intelligent heating in buildings, its performance is directly related to industrial safety and production efficiency. In the past, the high-end electric heat tracing market was long monopolized by European and American companies, leaving domestic companies struggling to expand into the mid- and low-end segments. As the economic environment changes, the drawbacks of over-reliance on imports are becoming increasingly apparent: not only are costs high, but supply chain security also faces severe challenges. Against this backdrop, independent innovation has become a key path to breakthroughs in the industry. Chinese companies, such as Anhui Huanrui, have successfully achieved mass production of ultra-high-temperature electric heating products through continuous technological research. This breakthrough signifies that domestic electric heating technology, leveraging its advantages in independent innovation, is accelerating its entry into high-end industrial and civilian markets, such as the petrochemical industry, new energy storage, and intelligent building temperature control. Domestic substitution will significantly reduce industry application costs, which will not only promote industrial chain upgrades but also, driven by technological innovation, inject strong momentum into regional economic transformation and the country's high-quality development. Technological Breakthroughs Help Enterprises Expand Markets Technological breakthroughs have enabled Chinese companies to emerge in high-end sectors such as marine engineering and high-speed rail. In the marine engineering sector, domestic systems, with their salt spray resistance and localized service, have replaced imports, reducing costs and accelerating the completion of a certain offshore platform project, driving localization efforts in the region. In the high-altitude transportation sector, extreme cold adaptation systems are being deployed on multiple lines to ensure water supply for high-speed rail. With increased domestic recognition, these products are being exported to numerous c...

On July 2nd, the 7th Yangtze River Delta Business Innovation Conference, themed "Qualitative Change and Intelligent Transformation: New Value Paradigm, Leading a New Ecosystem," grandly opened in Shanghai. The conference was hosted by the Shanghai Yangtze River Delta Business Innovation Institute with academic support from the Fudan University School of Management. It gathered leaders from industry, academia, research, government, and business to explore the path of innovation and high-quality development for Chinese enterprises in the new development pattern. The "2024 Yangtze River Delta Business Innovation Samples" were officially unveiled at the conference. Anhui Huanrui, an innovator in China's self-regulating electric heat tracing technology, was selected. The evaluation process involved over 40 industry-academia-research institutions and 65 experts, using a cross-assessment system of the "Six Forces Model + Five Dimensions Model." From an initial pool of 3,800 companies, 150 were shortlisted, then refined to 50 representative cases, and finally, 10 most exemplary innovation benchmark enterprises were selected. The sample, titled "Striving for Made in China, Working for a Warm World," deeply analyzes Anhui Huanrui's journey from challenging breakthrough to achieving technological self-reliance and leading industry change, providing a highly valuable practical paradigm for the "domestic substitution" and "intelligent upgrading" of key foundational materials and processes. Anhui Huanrui has focused on the electric heat tracing sector for over twenty years, forging a solid path from reliance on imports, imitation, and digestion to independent innovation and standard-setting. The company took innovation in polymer material formulation as the core breakthrough, continuously overcoming multiple "bottleneck" technologies, including high-temperature resistant insulation materials, precision processing of conductive heating elements, and intelligent control. Relying on its deep material science accumulation and engineering application experience, Anhui Huanrui successfully developed a series of high-performance electric heat tracing cables with complete intellectual property rights. Their core performance indicators have reached or surpassed those of international first-tier levels, effectively breaking the decades-long technological blockade and market monopoly by European and American companies in this field, and achieving security and control over key links in the industrial chain. Huanrui has not only achieved material localization but has also proactively and deeply integrated intelligent control technology with high-performance materials. Based on its self-developed core materials, leveraging intelligent sensing and precise temperature control, and guided by full-scenario application demands, the company has built an intelligent solution system covering "safe heat tracing, intelligent control, energy saving and consumption reduction, and remot...

The remarkable rise of  Anhui Huanrui Heating Manufacturing Co.,Ltd has reached another significant milestone as construction recently broke ground on a brand-new electric heating production facility in the Feidong Economic Development Zone. This expansion signifies the company’s continuing transformation, growing from a rented 1,000-square-meter factory to a modern production base now spanning over 50,000 square meters. A Decade and a Half of Strategic Expansion Established in 2007, Huanrui began humbly in a rented space, focusing on the R&D and production of self-limiting and constant wattage heating cables. Within a year, the company achieved its first major breakthrough: 2008: Huanrui products were successfully used in the Beijing Olympics Village project, marking a key early recognition of product quality. The company's trajectory accelerated with strategic investments in technology and market penetration: 2011: Certified as a National High-Tech Enterprise. 2012: Accelerated capacity expansion after its independently developed products achieved an initial breakthrough into the European market. Phase II & III: Building a Global R&D Powerhouse The mid-to-late 2010s saw a rapid build-out of the company's research and production infrastructure: 2 017-2018: Completed and commissioned its Phase II R&D and production base. During this period, Huanrui established a robust R&D system, including collaborations with key universities, the formation of an Anhui Province "115" Industrial Innovation Team, and the establishment of a postdoctoral research workstation. Internationalization: Accelerated its global strategy, achieving major international certifications from bodies like UL (USA) and Bureau Veritas (France), laying the groundwork for global market expansion. The completion of the Phase III High-Quality Electric Heating R&D and Production Base from 2021 to 2022 brought the company’s total land area in the zone to 56 mu (approx. 16 acres), with a construction area exceeding 50,000 square meters. echnological Dominance and Industry Recognition The commissioning of the Phase III facility coincided with significant technological breakthroughs and prestigious corporate honors in 2023: Product Breakthrough: Mass production began for the company's independently developed, high-temperature resistant, 200 degrees Celsius self-limiting electric heating cables, which were successfully deployed in major industrial heating projects worldwide. Industry Awards: Recognized as an Anhui Province Manufacturing Champion Cultivation Enterprise, an Anhui Industrial Boutique, and an Anhui Industrial Design Center. Major Contracts: Secured major framework agreements with key energy and chemical industry players, including winning bids for CNOOC's 2023-2025 electric heating framework and Wanhua Chemical Group's constant-wattage electric heating framework. With over 60 full-range product lines and an annual output now exceeding 20 million meter...

Minsk, Belarus – June 7, 2024 – A brand new sports landmark, the China-aided Belarus National Football Stadium in the capital city of Minsk, was officially inaugurated. Belarusian President Alexander Lukashenko attended the ceremony, joining the Chinese delegation to witness this important moment symbolizing the friendship between China and Belarus. Belarus National Football Stadium Location: Minsk Opening Date: June 7, 2025 Capacity: 33,145 Building Area: 48,000 m2 Landscaping Area: 12.43 hectares As a flagship project under the "Belt and Road" Initiative, the modern stadium, which can accommodate over 33,000 spectators, is a showcase of Chinese engineering and technological expertise. Following multiple rounds of technical evaluation and inspection, Anhui Huanrui Heating Manufacturing Co.,Ltd heat tracing system was selected. This success stems from Huanrui’s commitment to continuous technical innovation, strict product quality control, and its possession of numerous international certifications, including UL, BV, ATEX, CE, TUV, CSA, and EAC. The company also brought proven experience from successful applications in major venues like Yulin, Haidong, and Benxi stadiums. Tailored Solutions for Cold Climate Demands To meet the critical freeze protection and insulation requirements of the Belarus National Football Stadium, the Huanrui technical team designed specialized electric heat tracing solutions for two core areas: hot water system constant temperature maintenance and water supply and drainage pipe freeze protection. 1. Maintaining Hot Water System Stability Huanrui developed a Smart Hot Water Constant Temperature System to maintain the water temperature in the stadium’s hot water supply network, ensuring a comfortable experience for users anytime, anywhere. Operation: Specialized heat tracing cable is installed on the surface of hot water pipes to automatically compensate for heat loss. Benefits: Compared to traditional methods, the system is clean, highly efficient, economical, and environmentally friendly. It saves significantly on material and installation time while solving water temperature imbalance issues 2. Essential Pipeline Antifreeze and Safety To guarantee uninterrupted water flow, especially during the harsh winter months, Huanrui installed its Pipeline Antifreeze Electric Heat Tracing System across the venue. This system is crucial for preventing expensive damage from freeze expansion and cracking. Critical Safety Role: The system is particularly vital for the fire suppression sprinkler system. A failure due to freezing could render the system unusable in an emergency, leading to potentially catastrophic consequences. Intelligent Operation: Temperature sensors are placed at critical points throughout the piping network, constantly monitoring the water temperature. Energy Efficiency: When the temperature approaches freezing, the system automatically activates to maintain the water above a safe threshold of 5, significantly reduc...

When a well-known car company's ro-ro ship crosses the vast ocean, the temperature on board may drop to dozens of degrees below zero. In the past, such extreme conditions may cause the fuel pipeline to solidify, instrument components to freeze and crack, and water supply pipelines to freeze, causing significant losses. Today, Huanrui Electric's heating system provides all-weather "warm protection" for ro-ro ships. Installing self-regulating temperature electric heating cables in key areas of ro-ro ships is like putting on an intelligent temperature control jacket for the equipment. It can automatically adjust the output power according to the changes in the external temperature. The lower the temperature, the greater the heat output. When the temperature rises, the power is automatically reduced to achieve precise heating. Firefighting and water supply pipeline network The firefighting pipelines of the entire ship run through the deck like blood vessels. Once frozen, water will not be able to be supplied to extinguish the fire in an emergency. The self-regulating temperature electric heating cables are laid close to the pipelines, and the intelligent temperature control ensures that the water flow in the water pipes is always in liquid state. Even in the high and cold sea areas of the ocean, the firefighting system can still respond at any time. Fuel and lubrication system ：Once the fuel pipeline of a ship solidifies at low temperature, the main engine will shut down. The self-regulating temperature heating cable forms a dynamic insulation network on the fuel pipeline to ensure the fluidity of the fuel. The corrosion resistance of its outer fluoroplastic sheath resists the chemical erosion of marine fuel. Key instruments and valves ：Hundreds of pressure gauges, level gauges and valves on the ship are the "eyes" of operation monitoring. Traditional heating is difficult to heat evenly in these precise parts, while the self-regulating temperature heating cable can be laid in a shape-fitting manner and fits tightly to irregular surfaces through aluminum foil tape to prevent instrument freezing and cracking. The ocean-going export of vehicles of a well-known automobile company has realized the complete industrial chain closed loop of "Chinese ships, Chinese manufacturing, Chinese vehicles, and Chinese transportation". As an important "antifreeze and heat preservation solution", Huanrui's electric heating system ensures the quality and safety of domestic cars in long-distance shipping and enhances the international image of Chinese automobile brands. Opening up a new blue ocean for shipbuilding: This successful application marks that Huanrui's products have entered the field of automobile ro-ro ships, opened up a new market for heating, and brought huge development space for Huanrui. Verify the technical strength of extreme environments: Ocean-going ships are the "ultimate examination room" for testing the performance of e...

In the field of industrial heating, self-limiting temperature electric heating belts are gradually replacing traditional heating systems with their advantages of energy saving, safety, and easy installation. However, the pain point of limited length of a single cable has long plagued the industry. After long-term exploration, Anhui Huanrui Heating Manufacturing Co., Ltd. has successfully developed a self-limiting temperature electric heating belt with a single length of up to 300 meters. This technological breakthrough not only broadens the application field of Huanrui's self-limiting temperature electric heating belt, but will also promote the comprehensive upgrade of heating technology! The "length dilemma" of self-limiting heating tape Traditional self-limiting heating cables are limited by physical properties and electrical design, and the length of a single cable is usually around 100 meters. The core reasons are: ● Voltage attenuation and power drop: When the length of the electric heating cable increases, the line resistance causes the tail voltage to drop, which cannot meet the requirements of normal operation, thus affecting the heating effect. ● Starting current impact: The longer the length, the greater the starting current, and the stability requirements of the power distribution system are extremely high, which is difficult for ordinary circuits to bear. ● Limited application scenarios: Long-distance pipelines (such as oil and chemical pipelines) require frequent power supply points, high installation costs, complex maintenance, and safety hazards. This limitation seriously restricts the application of self-limiting heating cables in large-scale industrial projects, and has become a difficult problem that the industry urgently needs to break through. Main technical parameters: Rated voltage 220-240Vac Rated power 15-25W/m Maintaining temperature 0-65℃ Temperature resistance 85℃ Insulation material PVDF Insulation/polyolefin insulation + FEP sheath The launch of HUANRUI 300-meter self-limiting temperature heating tape is not only a technological breakthrough, but also marks that Huanrui has achieved a leap from "following" to "leading" in the field of high-end electric heating. In the future, with the deep integration of the Internet of Things and artificial intelligence technology, the heating system will move towards intelligence and integration, providing more stable and greener solutions for the global industry. From 100 meters to 300 meters, behind the numbers is the innovative power of Made in China. Huanrui has redefined the boundaries of heating with technological breakthroughs and injected new momentum into the field of industrial insulation!

In 2025, the Kenli 10-2 oilfield of the Bohai Oilfield of CNOOC is expected to be fully operational. This "stabilizing force" project is of great significance to the stable production and increase of offshore oil and gas fields and to the protection of national energy security. At the same time, it has achieved a breakthrough in the localization of key technologies - the pipeline antifreeze and thermal insulation system of its CEPC platform module uses the self-regulating heating cable of Anhui Huanrui Heating Manufacturing Co.,Ltd on a large scale, successfully replacing imported products! The Kenli 10-2 CEPC platform is the core processing and compression platform of CNOOC's Kenli 10-2 oilfield cluster in the Bohai Bay, mainly used for crude oil processing, natural gas compression, produced water treatment and external transmission, etc. The platform is the hub of the oilfield cluster development, realizing the functions of oil and gas collection, transportation, processing and pressurization. Huanrui Electric Heating Solution for Kenli 10-2CEPC Platform Kenli 10-2 Oilfield is located in the southern part of Bohai Sea, with an average water depth of 15.7 meters. In the low temperature environment in winter, crude oil, diesel, seawater and other pipelines are very likely to freeze or solidify, causing equipment to shut down. Although the traditional imported electric heating system can solve the antifreeze problem, it is expensive and has a long delivery cycle. Anhui Huanrui's electric heating technology stood out in this context and solved the heating problem of Kenli 10-2 CEPC platform. Anhui Huanrui Heating Manufacturing Co.,Ltd provided products and design solutions for the platform's electric heating system, involving more than 20,000 meters of pipelines and more than 150 types of equipment, covering more than 20 systems including crude oil process pipelines, natural gas processing systems, instrumentation and control systems, fire protection and safety systems, production water discharge pipelines, deck drainage systems, etc. A total of more than 100,000 meters of self-limiting temperature electric heating tapes were used, which solved the problem of freezing and blockage of pipelines or equipment due to low-temperature icing, medium solidification or increased viscosity, ensured the safe and stable operation of production, and realized the replacement of imported electric heating brands. The milestone significance of domestic substitution The application of Huanrui electric heating in Kenli Oilfield is not only a technological breakthrough, but also marks that my country's high-end industrial equipment field has achieved a leap from "dependence on imports" to "independent control". Breaking the monopoly of Europe and the United States and reducing energy security risks: In the past, offshore engineering electric heating systems have long been monopolized by European and American brands. With its strong corporate strength, Huanrui Electric...