High Efficiency Solar Air Collector

Pioneer of Technological Innovation: Reshaping the Global Solar Heating Industry Pattern

As a technologically breakthrough product in the global solar thermal utilization field, the DVC Double-pass Evacuated Tube Air Collector is supported by three core technological innovations. It breaks through the technical bottlenecks of traditional solar heating equipment, drives the industry's leapfrog development from "liquid working fluid dependence" to "air heat transfer upgrading", and provides solid technical support for global green energy transformation and the achievement of the "dual carbon" goal. With air as its core heat transfer medium, it efficiently meets the dual functions of indoor heating and professional drying, frees itself from the constraints of traditional liquid working fluids, and becomes the core choice for global multi-scenario solar heating solutions by virtue of its technical advantages.

Three Core Technological Innovations: Solving Industry Pain Points & Defining Quality Benchmarks

The core competitiveness of the DVC Double-pass Evacuated Tube Air Collector stems from the breakthrough innovations of three key technologies, which fundamentally solve the pain points of traditional equipment and establish international leading technical advantages:

1. DC Double-pass Glass Heat Pipe Technology: Restructuring the New Height of Heat Transfer Efficiency

Innovatively adopting a head-to-tail through DC double-pass glass heat pipe structure, compared with traditional vacuum tube designs, the air flow resistance is reduced by more than 30%, achieving larger air volume output under the same fan power and ensuring rapid and uniform heat transfer. Equipped with an expansion joint buffer structure, it effectively relieves the stress impact caused by alternating hot and cold, completely eliminating the hidden dangers of vacuum tube breakage and burst, and providing core technical guarantee for the stable operation of the equipment in extreme environments.

2. Interference Coating & Magnetron Sputtering Composite Process: Achieving the Optimal Balance of High Absorption and Low Loss

Integrating dual high-end coating processes to create an efficient heat collection surface: the solar absorptance can reach 93% (±2%@AM1.5), and the thermal emissivity is only 6% (±2%@80℃). It can not only capture solar energy to the maximum extent but also accurately control heat loss, making the system's photothermal conversion efficiency exceed 80%, far higher than the conventional industry level of 60%-70%. Even under special working conditions such as cloudy weather, high altitude and strong radiation, it can still maintain stable heat collection performance.

3. Inner Tube Expansion Joint & Liquid-free Working Fluid Integration Technology: Restructuring Equipment Durability Standards

Adopting an inner tube expansion joint protection design and a liquid-free working fluid integration scheme to double ensure the long-term stable operation of the equipment: the expansion joint buffers thermal stress to prevent vacuum tube damage; the liquid-free working fluid design fundamentally eliminates common industry problems such as medium leakage and pipeline corrosion, realizing maintenance-free operation throughout the equipment's life cycle with a service life exceeding 50 years, redefining the industry standard for the durability of solar collectors.

Four Technical Advantages: Empowering the Upgrade of Global Multi-scenario Applications

1. Extreme Environment Adaptation Technology: Covering Global All-climate Working Conditions

Supported by core technologies, the equipment can withstand extreme cold of -30℃ to high temperature of 280℃. The air heat transfer medium is not affected by severe cold and high altitude, and stably adapts to major global climate types. It can not only meet the high-temperature drying needs of agricultural products, Chinese medicinal materials and industrial products but also solve the heating problem in high-latitude severe cold areas, realizing stable operation in all regions and climates.

2. Multi-energy Coupling Compatibility Technology: Breaking Through the Technical Bottleneck of Severe Cold Heating

It has the core technical advantage of seamless coupling with air-source heat pumps. Through solar preheating empowerment during the day, it significantly improves the COP value of heat pumps under low-temperature working conditions, greatly reduces the energy consumption of heat pump operation, constructs an efficient "solar energy + heat pump" coupled heating system, completely solves the industry pain points of unstable and high-energy consumption heating in global high-latitude areas, and realizes stable heating throughout the season.

3. International Environmental Protection Intelligent Manufacturing Technology: Aligning with Global Green Development Trends

Adopting imported German constant-temperature integral foaming technology and high-pressure filling of environmentally friendly fluorine-free polyurethane materials, the foam layer is uniform and dense, taking into account thermal insulation performance, structural strength and weather resistance, without any harmful gas emission. It fully complies with environmental protection requirements and green building standards of countries around the world, adapts to the development orientation of the global green industry, and has no technical barriers to export.

4. Full-scenario Adaptation Technology: Covering Thermal Energy Needs in All Fields

With technical flexibility, it is widely applicable to global diverse scenarios. From the heating needs of commercial buildings (campuses, buildings, stations) and industrial workshops, to the professional drying of agricultural products, Chinese medicinal materials and industrial products, and then to central heating in severe cold areas, it fully covers the thermal energy needs of multiple fields such as construction, industry and agriculture, realizing the precise matching of technical value and scenario needs.

Global Industrial Empowerment: Building an Industry Benchmark with Technical Strength

The technological innovation of the DVC Double-pass Evacuated Tube Air Collector not only promotes itself to become a benchmark product in the global solar heating field but also helps Soletks Group consolidate its leading position in the global solar thermal utilization field, providing global customers with technical guarantee and service support with full industrial chain strength:

• R&D Empowerment: Relying on 117 core patented technologies and a complete set of industry solutions, as one of the few enterprises in the world that master blue film and black film production technologies, it continuously promotes the iterative upgrading of product technology and leads the direction of industry technological development;

• Intelligent Manufacturing Empowerment: Layout six Industry 4.0 intelligent production bases, achieving an efficient production capacity of one collector offline every 55 seconds. The full-chain quality control system ensures stable product quality, passes EU CE certification, and conforms to international quality standards;

• Service Empowerment: Independently control the key links of the entire industrial chain, with the market share of core materials leading the industry. The service covers 17 categories and more than 30 global application scenarios, providing full-cycle one-stop services from survey and design to construction and commissioning;

• Brand Empowerment: Products are exported to more than 40 countries and regions around the world, with the output of flat plate collectors ranking second in the world. It has accumulated a reduction of 16.726 million tons of carbon dioxide emissions, equivalent to planting 700 million trees. It practices the concept of green development with technical strength and has won wide global recognition.

Technology Leads the Future: Co-building a Global Green Energy New Ecology

The DVC Double-pass Evacuated Tube Air Collector breaks through industry bottlenecks with technological innovation, empowers global industries with quality strength, and relies on its efficient, durable, environmentally friendly and flexible technical advantages to promote the leapfrog upgrading of the global solar heating industry. It provides high-quality technical solutions for the efficient utilization of global green energy, helps countries around the world achieve the "dual carbon" goal, and jointly builds a green and sustainable energy new ecology.

Global Technical Cooperation Consultation Channel

If you wish to deeply understand the core technology of the product, obtain customized technical solutions or accurate quotations, please feel free to contact us at any time to jointly promote the development of the green industry through technological innovation!

Email: info@soletks.com

Official Website: www.soletks.com

Headquarters Address: China · Soletks Group