On march 26th, all employees visit Yellow Mountain which is the most beautiful mountain in China, below is a short introduction of this mountain, we welcome all our firends and clients visit this mountain together.

The Yellow Mountain, located in the southern part of Anhui Province, is China’s most celebrated mountain for all its grandeur and beauty. In 1990 the Yellow Mountain was declared a World Natural and Cultural Heritage site by UNESCO Heritage Committee. The Yellow Mountain is a marvel: within an area of 154 square kilometers there is a crowd of peaks, many of which have names indicating the shapes they resemble. Lotus, Brightness Apex and Celestial Capital are the three major ones, all rising above 1,800 meters. When it is cloudy the pinnacles loom in mists as if they were illusionary, while the sun is shinning they unfold in all their majesty and splendour. The Yellow Mountain changes its color and appearance with the alternation of seasons. In spring blooming flowers decorate the slopes in a riot of color; in summer you see verdured peaks rising one upon another and hear springs gurgling merrily. Autumn dresses the peaks in red and purple as maples are all blazing-red; winter turns them into a world of frost and ice with silver boughs and rocks everywhere. So from ancient times the peaks have been frequented by tourists seeking their mystery and admiring scenery. They come to the conclusion that the fantastic pines, the grotesque rocks, the sea of clouds and the hot springs are the four major attractions of the Yellow Mountain. Owing to the peculiar terrain,the climate of the Yellow Mountain is marked by a vertical change, and the vertical distribution of vegetation is also distinctive: plants on the summit,on the middle levels and at the foot belong to the frigid, temperate and subtropical zones respectively. There are more 1,500 species of plants, of which trees comprise one third. The Yellow Mountain also provides the natural habitat for a wide variety of fauna. The temperature in the Yellow Mountain is agreeable all the year round. As clouds often shut out the sun, hot weather never stays long, and this makes the Yellow Mountain an ideal summer resort. Though looking young and fresh, the Yellow Mountain has a long history to which ancient books, poems, and paintings as well as carved inscriptions all bear witness.Li Bai was not the only poet who sang in its praise, Tang poets Jia Dao and Du Xunhe also came here and wrote poems. In the succeeding dynasties people kept coming and giving expression to their admiration in poetry. Xu Xiake, the great geographer and traveler of Ming Dynasty, devoted two of his travel notes to the Yellow Mountain.Inscriptions of past generations meet one’s eyes here and there: “Clouds in a myriad of forms”, “Peaks piercing the sky”, “A cool world”, “Fantastic and beautiful”, “Scenery of exceptional charm”, to mention just a few of them. Such poetic phrases in handsome calligraphy are not only decorative, but also part of fascinating scene.

Huanrui has professional team for researching and development of the key technologies, we work with the top two experts from Chinese government heat trace project. We are committed to research, production, sales, design, installation and after-sales.

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Anhui Huanrui Heating Manufacturing Co.,Ltd is a famous Chinese manufacturer and national high-tech enterprise, which takes the job of research and development, production, sale and service of self regulating heating cable, constant wattage heating cable, electric under floor heating products. Company located in city of National Science and Technology Innovatation Pilot --- Hefei. It was found in 2004, the registered fund is 20.8 million RMB, has 100 employees. Company owns the first building area of 8476 square meters, and ten automatic production lines, the annual output of self regulating heating cable is 20 million meters. In 2015, Anhui Huanrui Heating manufacturing Co.,Ltd is planning to invest 120 million RMB to the second factory project, which covers an area of 16500 square meters. Then Anhui Huanrui Heating Manufacturing Co.,Ltd will be the largest manufacturer of self regulating heating cable in China.

AnhuiHuanrui Heating Manufacturing Co.,Ltd has 19 patented technology, more than 90 industrial certificates and honors from government. In 2006, Anhui Huanrui Heating Manufacturing Co.,Ltd became the member of floor heating association of Hebei Province. In 2007, Anhui Huanrui Heating Manufacturing Co.,Ltd registered the brand "JIUZI", which shows high quality and good faith of our enterprise.

In 2008, all the products of Anhui Huanrui Heating Manufacturing Co.,Ltd got the national explosion-proof certificates.

In 2010, Anhui Huanrui Heating Manufacturing Co.,Ltd got the certificate of "Famous Brand of China"

In 2011, Anhui Huanrui Heating Manufacturing Co.,Ltd got the certificate of ISO 9001:2008 quality management system.

In 2013, Anhui Huanrui Heating Manufacturing Co.,Ltd became the main compile organization for national standards.

In 2014, Anhui Huanrui Heating Manufacturing Co.,Ltd got the certificates of "National High and New Technology Enterprise", "Famous Brand of Anhui".

With the advanced production equipment and test devices of the world, and the continuous efforts of research and development team, Anhui Huanrui Heating Manufacturing Co.,Ltd works with the world top 500 enterprises, serves more than 20000 customers from all over the word. Our products widely used in oilfield, electric power, steel, chemical, coal and gas, refrigeration, food, construction, fire fighting, solar energy, electrothermal heating, geothermal cultivation, carriages, offshore oil platform industries and etc.

In 2007, Anhui Huanrui Heating Manufacturing Co.,Ltd became the supplier for the world top 500 ABB group.

In 2008, Anhui Huanrui Heating Manufacturing Co.,Ltd provided the self regulating heating cable for 2008 Olympic games.

Since 2009, Anhui Huanrui Heating Manufacturing Co.,Ltd became the long-term and fixed supplier for Dazing oilfield, Hubei oilfield, Songhua oilfield.

Since 2011, Anhui Huanrui Heating Manufacturing Co.,Ltd exported to Russia, UK, Australia, Hungary and etc.

In 2014, under the guidance of top two experts, Anhui Huanrui Heating Manufacturing Co.,Ltd produce a exclusive self regulating heating cable, using the latest advanced machine and highest technology, create a exclusive PTC heat matrix. Meanwhile obtain a patent of low resistance transition layer, PTC semi-conductive, Modified inner insulation layer process in one step, protect the PTC. No spacing between layer, so no impurity will hurt the PTC. It ensures that the cable will have a long work time, working at low starting current.

Until now everyone in company pay great effort, try to bring the high technology, energy saving and comfortable products to everyone. We believe that our company Anhui Huanrui Heating Manufacturing Co.,Ltd will be the great manufacturer in the future. Welcome customers from all over the world come to us and be familiar with products of Huanrui.

Anhui Huanrui Heating Manufacturing Company will attend the 124th Canton Fair, Phase One, 15-19th October 2018. Address of exhibition hall: No.380, Yuejiang Zhong Road, Guangzhou, China. Our booth number: 11.3K28. Welcome to visit! We will be glad to show you our products: self-regulating heating cable, constant wattage heating cable, electric under floor heating system, water pipe freeze protection system, process temperature maintenance system, roof & gutter de-icing system, snow melting system etc.

Canton Fair(China Import and Export Fair) is the largest trade fair with the largest scale, the most complete exhibit variety, the broadest distribution of overseas buyers and the greatest business turnover held in Guangzhou(Canton) China. Nearly 20,000 venders, about 200,000 buyers will attend the fair at China Import and Export Complex twice a year.

Fair is divided into three phases. Phase 1 focuses on electrical and electronic products, building Materials, industrial products. Phase 2 focuses on such labour-intensive products as groceries, ornaments, gifts, and furniture. Phase 3 focuses on clothing, footwear, bags... and food medicine that such as use on people.

In the cold winter, the fire protection pipes in shopping malls face severe tests. Low temperature will not only affect the service life of the pipes, but also cause the water in the pipes to freeze, thus affecting the normal operation of the fire protection system. In order to ensure the fire safety of the shopping mall, the electric heating system can be used to prevent freezing and heat preservation of the fire protection pipes in the shopping mall.

1. Necessity of electric heating system

Prevent pipe freezing: In the severe winter, the fire protection pipes in the shopping mall are easily affected by low temperature and freeze. Once the pipe freezes, it will hinder the water flow, affect the normal water supply of the fire protection system, and bring hidden dangers to the fire safety of the shopping mall.

Improve the service life of the pipe: In a low temperature environment, the pipe material is easily damaged, leading to problems such as pipe aging and corrosion. By using an electric heating system, the pipe temperature can be maintained, the aging speed of the pipe material can be slowed down, and the service life of the pipe can be extended.

2. Features of electric heating system

Prevent pipe freezing: In the severe winter, the electric heating system provides a continuous and stable heating effect for the fire protection pipe, ensuring that the temperature in the pipe is always maintained within the set range, preventing the occurrence of pipe freezing.

Ensure the normal operation of the fire protection system: The electric heat tracing system can ensure the normal operation of the mall's fire protection system in winter, providing a strong guarantee for the mall's fire safety. Improve the service life of the pipeline: By using the electric heat tracing system, the service life of the mall's fire protection pipeline has been extended, reducing the maintenance and replacement costs caused by pipeline aging, corrosion and other problems.

Anhui Huanrui

Snow Melting System is suitable for heating driveways, preventing ice and snow accumulation, keeping driveways or sidewalks clean and safe. Keep driveways and sidewalks free of ice.



In winter, ice and snow can accumulate on concrete and asphalt pavement, posing a slip hazard to people and vehicles.



Heating driveways or sidewalks can effectively eliminate snow and ice. This approach means that heated pavement no longer requires rock salt or other hazardous de-icing agents.



Anhui Huanrui Snow Melting System can be installed under concrete and asphalt driveways and is able to withstand any challenges brought by winter weather. The system requires no maintenance after installation



Comprehensive Driveway Snow Melting Electric Heating System



The system provides a comprehensive solution for driveway snow and ice melting, including:



Heated lane lines



Energy-efficient control unit and sensors



Other related components

Protection of industrial fluids

Industrial liquids are vital work in industrial production when stored. At low temperatures, if not handled properly, the liquid will freeze or solidify, making normal production impossible, resulting in corresponding losses. When sufficient temperature for the liquid cannot be guaranteed in tank storage, the installation of a tank electric heating system should be considered.

Typical tank tracing applications include:

Freeze protection for low/medium viscosity fluids (e.g. water, ammonia).

Maintain the temperature of medium/high viscosity liquids (e.g. petroleum, phenol, resins, molten salts).

Prevents caustic soda crystallization

Prevent fly ash from condensing in the conical silo

Bitumen, crude oil, sulfur and fire tanks

Beverage and fermentation tanks and equipment

Designed with flexibility in mind

Anhui Huanrui storage tank electric heating device is easy to install and maintain. We offer a wide range of heat tracing products including long circuit lengths, high chemical resistance, high maintenance temperatures and high power density. Our control and monitoring solutions allow us to design flexible systems with variable power outputs and maintain temperature. Tank operators can rely on data integration to monitor energy usage in real time and maximize the benefits of the system.

Self-regulating heating cable, also known as self-limiting heating cable, is a type of electrical heating device used for various applications related to temperature maintenance and frost protection. It is designed to regulate its own heat output based on the surrounding temperature, providing efficient and reliable heat where and when it is needed.

The unique characteristic of self-regulating heating cables lies in their construction. They consist of a conductive core, usually made of carbon or other conductive polymers, surrounded by an insulating layer and an outer protective jacket. As the ambient temperature decreases, the conductive core contracts, causing the distance between the conductive particles to decrease. This results in an increase in electrical resistance and, consequently, a decrease in heat output. Conversely, when the temperature rises, the core expands, leading to a decrease in resistance and an increase in heat output.

Anhui Huanrui Heating Manufacturing Co., Ltd, established in 2007, is a professional heating cable manufacturer engaged in the research, development, production, sale and service of self-regulating heating cable, constant wattage heating cable, underfloor heating cable and heating mat, water pipe antifreeze system, process temperature maintenance system, roof and gutter de-icing system, road snow melting system.With years of expertise in manufacturing high-quality heating solutions, we bring innovation, reliability, and exceptional service to every product we deliver. Our self-regulating heating cables are designed to meet the highest standards, providing unparalleled performance in even the most challenging environments.For more information or to discuss your specific heating needs, contact us today and let us help you create the perfect heating solution.

Electric Tracing System: Components and Working Principle

Many customers are familiar with electric tracing systems for insulation, but most are unaware of their components and working principles. Below is a detailed introduction.

Components of an Electric Tracing System

1. Explosion-Proof Power Connection Box

   • Ensures safe wiring of the electric heating cable.

   • The quality of terminals directly impacts the system's safety and operational continuity.

2. Explosion-Proof Intermediate Connection Box

   • Primarily used for connecting heating cables in complex relay lines.

   • Can function as a power connection box if the usage limits are not exceeded.

3. End-Sealing Connection Box

• Used for terminating self-regulating heating cables.

• The other end is sealed with this box, and heat-shrink tubing must be applied.

• Important: Never connect the two ends of the heating cable or parallel bus bars directly.

1. Aluminum Foil Tape

   • Expands the heating surface of the cable, improving thermal distribution and efficiency.

2. Thermal Adhesive Tape

   • Secures the heating cable to pipes or equipment.

   • Stainless steel zip ties may also be used for fixation.

3. Warning Labels

   • Affixed to the outer surface after installation as a safety reminder and power indicator.

Working Principle of Electric Tracing

The principle is straightforward: Heating elements are installed between the insulation layer and the object to be heated. During operation, these elements maintain the target temperature, ensuring fluids or equipment remain within the desired range.

• In Low-Temperature Environments:
  The conductive polymer expands, reducing current flow and heat output, thus stabilizing the temperature.

• In Overheating Conditions:
  The polymer expands significantly, nearly cutting off all current and minimizing heat emission.

This self-regulating mechanism ensures efficient insulation. When temperatures exceed limits, heat generation ceases automatically.

Key Notes

• Always follow safety guidelines during installation.

• Proper component selection ensures system reliability and longevity.

Steel buildings are everywhere—factories, airports, storage centers, and even modern houses. They’re chosen for many good reasons: they’re strong, quick to assemble, and often more cost-effective than traditional concrete. 

 

Steel structure buildings is one of the hot sale products of ZhongTai Industrial Co., Ltd. Like steel structure workshop, steel structure warehouse, steel structure farm shed, steel structure parking shed, steel structure hangar and steel structure livestock shed. The safety and stability of steel structure buildings can be maintained from the following aspects:

 

Start with Smarter Design, Not Just Stronger Materials

Design work is more than plugging numbers into a program. Real-world loads, unusual weather, shifting soil, and unexpected usage all affect how a structure behaves. Good design accounts for more than just building codes—it anticipates edge cases. That might mean slightly overdesigning critical joints or choosing a different layout altogether to avoid potential stress points.

 

Steel Selection Should Consider the Environment

Some builders might assume all steel is created equal, but that's rarely the case. In practice, where the building stands makes a big difference. Steel used in dry, inland climates performs differently than the same material exposed to salty ocean air or high humidity. Even the fasteners, coatings, and welding techniques should match the setting. A poor material match can silently shorten a building’s lifespan.

 

Construction Execution Is Where Mistakes Hide

A well-drawn plan doesn’t protect anyone if the construction crew makes shortcuts. Misaligned beams, incomplete welds, or bolts left slightly loose won’t show their effects immediately. But they build up over time. Having knowledgeable site supervisors—not just general contractors—keeps these issues from accumulating. Often, it’s the details that make the difference, especially in large-span buildings.