Since its establishment in 1992,Hangzhou Risheng Decontamination Equipment Co.,Ltd.has been deeply engaged in the field of compressed air treatment, and is a comprehensive solution provider integrating research and development, production, sales and service. Always uphold the development concept of "quality first, continuous innovation", and have a good reputation in the industry. The following is a detailed introduction to its star product Desiccant Air Dryer.
1.Desiccant Air Dryer working principle in-depth analysis
Adsorption process: Risheng's twin tower adsorption dryers are like precision air purification hubs, equipped with two pressure towers loaded with highly efficient desiccant. When moist compressed air enters one of the towers, the desiccant acts like a myriad of tiny sponges, rapidly capturing and absorbing moisture from the air. Taking a precision optical instrument manufacturing enterprise as an example, the grinding and coating process of the lens has extremely high requirements for air humidity, and even extremely small changes in humidity may lead to defects on the lens surface. Risheng's twin tower adsorption dryers steadily output dry air, ensuring that the humidity of the production environment is always under control, so that the company's lens yield has increased from 80% to more than 95%.
Regeneration process: When the desiccant in one tower reaches saturation, the device automatically switches the valve within milliseconds, and the wet air is transferred to the other tower for drying. The saturation tower opens the regeneration process, and when heating and regeneration, the heating temperature is precisely controlled in the best regeneration temperature range of the desiccant through the intelligent temperature control system. For example, for activated alumina desiccant, the temperature is usually controlled at 200-300 ° C, so that the water is quickly and fully evaporation and discharge. Vacuum expansion regeneration uses the principle of pressure difference to instantly reduce the pressure in the tower, promote the desorption of water in the desiccant, and then introduce the drying gas after strict filtration, and thoroughly bring the desorption water out of the dryer, so that the desiccant can restore the original adsorption vitality, so that it can be put into efficient drying work again.
2.Desiccant type is fully known
2.1 Activated Alumina
Adsorption performance: The activated alumina selected by Risheng is a high-quality product after layers of screening and special process treatment, and its internal has a rich microporous structure, with a specific surface area of up to 300-500m ²/g, which can efficiently adsorb water in the air in a very short time. In some spraying industries that require very high drying speed, the use of dryers containing activated alumina desiccant can reduce the dew point temperature of humid air to below -20 ° C within 1 minute, meeting the production needs of rapid drying.
Durability: Activated alumina has excellent mechanical strength and chemical stability, and is not easily broken and pulverized during long-term adsorption and regeneration cycles. Under normal working conditions, its service life can reach 5-8 years, reducing the human and material costs caused by frequent replacement of desiccant, and providing a solid guarantee for long-term stable production of enterprises.
Clean advantage: Because it is not easy to produce dust, it will not cause secondary pollution to compressed air, especially suitable for the pharmaceutical industry with almost harsh air quality requirements. In the sterile production workshop of drugs, Rishen's activated alumina dryer ensures that the air entering the workshop is pure and dry, ensures that the drug production environment is not interfered with by any impurities, and meets the strict requirements of drug production quality management practice (GMP).
2.2 Silicone
Long life characteristics: High-performance silica gel is another high-quality choice for Risheng dryer, which has been improved by special formula and has a more stable molecular structure. In practical applications, it can withstand more than 10,000 adsorption-regeneration cycles without significant decline in performance, and can stably play a drying role for a long time, saving the cost and time of frequent replacement of desiccant for enterprises.
Low dust advantage: In the process of use, the amount of dust produced by silica gel is very low, through a professional dust filter device, the dust concentration can be controlled below 0.1mg/m³, to ensure the high cleanliness of compressed air, to meet the needs of electronic chip manufacturing and other industries with strict air quality requirements.
The unique features of water-resistant silica gel: some water-resistant silica gel has a unique advantage, and its internal contains special hydrophilic groups, which can cope with additional water, and has an additional adsorption capacity of 15% than ordinary silica gel. In the canning link of food and beverage, the use of water-resistant silicone dryer effectively prevents the deterioration of food and beverage turbidity caused by humid air, and extends the shelf life of food by more than 30%.
2.3 Molecular Sieve
Super adsorption capacity: For some special industries with high dryness requirements, such as aerospace, high-end electronics, etc., Risheng uses molecular sieve as a desiccant. Molecular sieve has a uniform and small pore size structure, can be selective adsorption according to the size of the molecule, the adsorption capacity of water is very strong. In the processing of aircraft engine parts, Risheng's molecular sieve desiccant can reduce the air dew point temperature to below -70 ° C, ensuring the ultra-dry state of the processing environment and ensuring the high-precision manufacturing of aviation parts.
Special industry application: In the field of aerospace, the electronic equipment and precision instruments of aircraft are prone to failure in high humidity environment. Risheng's molecular sieve desiccant ensures ultra-dry air environment for aircraft manufacturing, aviation equipment testing and other links to ensure aviation safety. In the high-end electronics industry, it provides a stable and dry production environment for chip manufacturing and precision circuit board production, effectively reducing chip short circuit and electronic component failure caused by water vapor, improving the performance and stability of electronic products, and helping the yield of electronic products to increase by more than 10%.
3. A wide range of applications and customer recognition
3.1 Industrial production field
Chemical industry: In the chemical production process, many chemical reactions are extremely sensitive to the moisture content of gases. Risheng desiccant air dryer can accurately remove water in process gas, prevent side reactions caused by water, and ensure stable quality of chemical products. For example, in the production process of polyvinyl chloride (PVC), the presence of water will lead to uncontrolled polymerization and affect product quality. After the use of Risheng dryer, the quality stability of PVC products has been greatly improved, and the defective rate has been reduced by more than 15%. At the same time, the equipment is avoided due to moisture corrosion, the service life of the equipment can be extended to 5-10 years, and the cost of equipment replacement and maintenance is reduced.
Oil and gas industry: During the extraction, transportation and processing of oil and gas, Riseng's dryers prevent pipes from freezing due to moisture and internal corrosion of equipment. In the natural gas transmission pipeline in cold areas, after installing the dryer of Risheng, the pipeline blockage accident caused by water icing is effectively avoided, and the stable supply of natural gas is guaranteed. In the process of petroleum refining, the dry process gas is helpful to improve the quality and production efficiency of oil products, and enhance the economic benefits of enterprises.
3.2 Electronics manufacturing industry
Foreign high-end manufacturers such as Foxconn and Intel have extremely high requirements for the dryness and cleanliness of the air environment in chip manufacturing and circuit board production. Risheng's drying equipment provides stable and dry air, effectively avoiding chip short circuit and circuit board solder joints caused by water vapor. In the photolithography process of chip manufacturing, small changes in humidity may lead to a decrease in photolithography accuracy. After using Risheng's dryer, the yield of the chip is increased by more than 8%, ensuring the high-quality production of electronic products.
3.3 Pharmaceutical Industry
Drug production must meet the GMP requirements, Risheng dryer to ensure that the air in the drug production process dry, to prevent the drug in the production, storage process of moisture deterioration. In the production process of antibiotics, the humid air will cause the medicine to mold and deteriorate, affecting the efficacy of the drug. The dryers of Risheng strictly control the humidity of the production environment, ensure the quality and efficacy of drugs, protect people's health, and make the qualified rate of drugs reach more than 99%.
3.4 Food and beverage industry
In food packaging, refrigeration and other links, Risheng products remove moisture in the air, create a dry environment, prevent food mold, deterioration. In the packaging process of biscuits, potato chips and other foods, after the use of the dryer, the shelf life of the food is extended by 2-3 months, so that consumers can enjoy safe and fresh food. In beverage production, dry air can prevent condensation on the inner wall of beverage bottles, improve the appearance quality of products and market competitiveness.
3.5 Air separation industry
In the process of producing oxygen, nitrogen and other gases, Risheng's dryer removes moisture from the raw air to improve the purity of the gas. In the production of medical oxygen, after the use of Risheng dryer, the purity of oxygen can reach more than 99.5%, meeting the strict requirements of the medical industry for high-purity oxygen. In the production of industrial nitrogen, dry raw air helps to improve the production efficiency and purity of nitrogen, and provides a reliable air source for industrial production.
Many large and medium-sized enterprises, military enterprises have also chosen the products of Risheng, which is undoubtedly a high recognition of its product quality and technical strength. For example, in the manufacturing process of missile parts, a large military enterprise has high requirements for the dryness and cleanliness of the air, and after strict testing and screening, the desiccant air dryer of Risheng is finally selected to ensure the high-precision manufacturing and reliability of military products.
4. Summary
Hangzhou Risheng Decontamination Equipment Co.,Ltd.desiccant air dryer with a variety of efficient working principles, such as twin tower adsorption and rotary unique design, to achieve accurate treatment of humid air. A wide range of desiccant types, including activated alumina, silica gel and molecular sieve, meet the stringent drying and air quality requirements of different industries. A variety of dryer types, from non-thermal regeneration to compressed thermal regeneration, have their own advantages to suit the production scale and energy needs of various enterprises. In a wide range of fields such as industrial production, electronics manufacturing, pharmaceuticals, food and beverage, and air separation, Risen's desiccant air dryers play a key role in ensuring smooth production and improving product quality. In the future, Risheng will continue to rely on the spirit of innovation and the persistent pursuit of quality, constantly optimize products, provide more industries with better quality and more efficient compressed air treatment solutions, and help all industries achieve greater development under the guarantee of dry air. At the same time, with the continuous progress of science and technology, Risheng is expected to make new breakthroughs in the field of drying technology, such as developing more efficient desiccant materials, optimizing the structure and operation mode of the dryer, further improving the performance and market competitiveness of the product, and setting a new benchmark for the global compressed air treatment industry.