INTRODUCTION

Fully automatic self-cleaning filters are advanced filtration equipment that plays a crucial role in numerous water treatment scenarios. They mainly consist of a filter cylinder, a filter screen, a cleaning device, a sewage discharge device, a control system, and related connecting pipes and other components.

The filter cylinder, as the outer shell, provides stable support and protection for the internal filtration components. The filter screen is the core filtration part, usually made of materials like stainless steel, featuring high precision and good strength. The pore size of the filter screen can be customized according to different filtration requirements and can effectively intercept suspended solids, particles, impurities, and other substances in water. The cleaning device is responsible for periodically or as needed cleaning the filter screen to ensure that it always maintains good filtration performance. The sewage discharge device can promptly discharge the dirt removed from the filter screen out of the equipment.

The control system is the "intelligent center" of the fully automatic self-cleaning filter. It can automatically trigger the cleaning program based on preset time intervals, changes in the pressure difference across the filter screen, and other parameters, realizing the automation of the entire cleaning and filtration processes without the need for frequent manual intervention. This equipment comes in a variety of specifications and can be applied to small-scale household water filtration as well as large-scale water treatment projects in industrial production and municipal water supply. Its appearance design is compact and reasonable, easy to install, and it operates stably and reliably, continuously ensuring the purification effect of water quality.

WORKING PRINCIPLE

The working principle of the fully automatic self-cleaning filter is based on the physical filtration of the filter screen and the automatic cleaning mechanism. When water containing impurities enters the filter cylinder, the water flow will pass through the filter screen. Since the filter screen has a specific pore size, impurities with particle sizes larger than the pore size of the filter screen will be intercepted on the influent side of the filter screen, while water and substances with particle sizes smaller than the pore size of the filter screen can smoothly pass through the filter screen and flow out from the water outlet, thus realizing the preliminary filtration of the raw water and obtaining relatively clean water.

As the filtration process continues, the impurities intercepted on the filter screen will gradually increase, resulting in an increase in the pressure difference across the filter screen. When the pressure difference reaches the preset value of the control system or when the preset time period is reached, the control system will start the cleaning device. The cleaning device usually adopts methods such as high-pressure backwashing, brush scrubbing, ultrasonic vibration, etc. (different equipment may adopt different cleaning methods or combinations of methods) to clean the filter screen, making the impurities attached to the filter screen fall off. Subsequently, the sewage discharge device will discharge these impurities along with the sewage out of the equipment. After the cleaning is completed, the equipment returns to the normal filtration state, repeating this cycle continuously to ensure the filtration effect.

MAIN PERFORMANCE AND CHARACTERISTICS

l High-Efficiency Filtration Capacity: Thanks to the high-precision filter screen, the fully automatic self-cleaning filter has a remarkable effect on intercepting impurities in water. Common substances in water such as sediment, rust, and suspended solids can be effectively intercepted, significantly reducing the impurity content in water, improving the clarity and purity of water quality, and meeting the basic requirements of different industries and living scenarios for water quality.

l Automatic Cleaning and Convenient Maintenance: Its automatic cleaning function greatly reduces the workload of manual maintenance. There is no need for manual monitoring of the filter screen status and manual cleaning at all times. The equipment can automatically complete the cleaning and sewage discharge operations according to the preset conditions, saving labor costs and ensuring the long-term stable operation of the filter screen and extending the service life of the filter screen and the entire equipment.

l Stable Operation and High Reliability: Equipped with an advanced control system and high-quality mechanical components, the equipment can operate stably under different working conditions, such as different water flow speeds, pressures, and water quality conditions, and is not prone to malfunctions, effectively ensuring continuous water treatment work and providing stable and reliable water quality guarantee for the water use system.

l Wide Adaptability: Whether dealing with municipal water supply, industrial circulating water, domestic sewage, or seawater desalination, and regardless of the source and nature of the water, the fully automatic self-cleaning filter can play its role. By selecting appropriate filter screen pore sizes and filtration parameters, it can adapt to a variety of complex water quality conditions and has strong versatility.

l Energy Saving and Environmental Protection Advantages: During the cleaning process, the equipment usually adopts relatively energy-efficient cleaning methods. Compared with some traditional cleaning methods that require a large amount of manpower and material resources, it consumes less energy and avoids resource waste caused by frequent replacement of filter screens, which is in line with the current concept of green environmental protection and sustainable development.

APPLICATION FIELDS AND INDUSTRIES

l Industrial Field: In industrial production such as the chemical, steel, and power industries, a large amount of industrial water containing impurities is generated. The fully automatic self-cleaning filter can filter the circulating cooling water to remove impurities in the water, prevent the cooling water pipelines from scaling and clogging, improve the cooling efficiency, and ensure the normal operation of production equipment. Meanwhile, for some process water in production, such as in the pre-treatment stage of ultrapure water preparation in the electronics industry, it can intercept tiny particles in water, laying a good foundation for subsequent fine treatment and ensuring the production of high-quality products.

l Municipal Water Supply Field: In the municipal water supply system, the source water may contain impurities such as sediment, algae, and microorganisms. The fully automatic self-cleaning filter, as a part of the pretreatment or advanced treatment process, can further purify the water quality, improve the quality of the water supply, ensure the safety and hygiene of residents' water use, enable residents to use clearer and odorless drinking water, and also help to reduce the maintenance cost of the water supply pipeline and extend its service life.

l Sewage Treatment Field: For the treatment of domestic sewage and industrial wastewater, the fully automatic self-cleaning filter can first conduct preliminary filtration on the sewage to remove large suspended solids and the like, reducing the burden on subsequent treatment processes, improving the efficiency of the entire sewage treatment system, enabling the subsequent biochemical treatment, advanced treatment, and other processes of the sewage to proceed more smoothly, and finally achieving the goals of meeting the discharge standards or recycling the sewage.

l Agricultural Irrigation Field: If agricultural irrigation water contains too many impurities, it may clog the irrigation nozzles, affect the irrigation effect, and even damage crops. The fully automatic self-cleaning filter can filter irrigation water sources such as surface water and groundwater, remove sediment, debris, and other substances, ensure the cleanliness of the irrigation water, enable the irrigation system to supply water to crops evenly and stably, and help to improve the yield and quality of crops.

SUMMARY

Fully automatic self-cleaning filters, with their unique working principles and excellent performance characteristics, have shown strong application value in many fields such as industry, municipal, sewage treatment, and agricultural irrigation. They are like the intelligent filtration "guardians" for protecting water quality, quietly contributing to ensuring the cleanliness and efficient utilization of water resources. With the continuous progress of science and technology, it is believed that fully automatic self-cleaning filters will continue to make breakthroughs in aspects such as improving filtration precision, deepening the degree of automation, and expanding applications, further meeting the increasingly diverse water treatment needs of society and becoming an important supporting equipment for creating a high-quality water environment and facilitating the development of various industries.