Tubular Automatic Backwash Filter - Efficient Filtration & Intelligent Self - Cleaning Pioneer

Product Introduction

1. Structural Composition

• Tubular Filtration Unit: Composed of multiple parallel filter tubes, each filled with high - precision filter screens or filter elements, increasing the filtration area and enhancing the processing flow rate.

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• Backwash System: Includes backwash valves, sewage pipes, backwash pumps, and other components, achieving online cleaning of filter screens or filter elements through automated programs.

• Outer Shell: Made of anti - corrosive carbon steel or stainless steel, it can withstand high working pressures, ensuring stable operation of the equipment under complex working conditions.

• Control System: Equipped with an intelligent PLC control system, it monitors parameters such as the pressure difference between the inlet and outlet of the filter, flow rate, and operation time in real - time, and automatically controls the backwash process.

2. Working Principle：The fluid to be filtered enters the filter from one end and is evenly distributed into each filter tube. It is filtered through the filter screen or filter element, and impurities are intercepted on the surface of the filter medium. When the accumulation of impurities on the filter medium causes the pressure difference between the inlet and outlet to reach the set value, or the operation time reaches the preset duration, the control system initiates the backwash program. The backwash pump pumps clean fluid into the tubes in the reverse direction, flushing away the impurities, which are then discharged through the sewage pipe, realizing automatic cleaning of the filter.

3. Core Advantages：Compared with traditional filters, the tubular automatic backwash filter has a large filtration area and high processing flow rate. It can perform automatic backwashing without manual disassembly and cleaning, reducing maintenance costs. It also has strong continuous operation ability, ensuring that the fluid supply is not interrupted during the backwashing process and guaranteeing production continuity.

Working Process

1. Filtration Stage

• The fluid to be filtered enters the filter through the inlet pipe and evenly flows into each filter tube through the distribution device.

• The fluid passes through the filter screen or filter element in the tube, and suspended solids, particulate impurities, etc., are intercepted. The clean fluid flows out from the other end of the tube, converges, and is discharged from the filter outlet into subsequent processing or use processes.

2. Backwash Trigger

• During operation, the control system monitors the pressure difference between the inlet and outlet of the filter and the operation time in real - time.

• When the pressure difference exceeds the set threshold (such as 0.05 - 0.1MPa), or the operation time reaches the preset duration (such as 8 - 24 hours), the backwash program is triggered.

3. Backwash Process

• Close the inlet and outlet valves of the filter and start the backwash pump.

• Clean fluid enters the filter tubes in the reverse direction from the outlet end of the filter, flushing the filter screens or filter elements with high - speed water flow, and discharging the intercepted impurities from the sewage pipe at the inlet end.

• The backwashing is carried out column by column according to the set sequence to ensure that each filter tube is thoroughly cleaned. The backwash time for a single tube is usually 30 - 60 seconds.

4. Restoration of Filtration：After the backwashing is completed, close the backwash pump and the sewage valve, open the inlet and outlet valves, and the filter re - enters the filtration stage, continuously ensuring fluid purification.

Product Features

Technical Parameters

Application Fields

1. Petrochemical Industry: Filters mechanical impurities, catalyst particles, etc., in petroleum, chemical raw materials, and products, protects key equipment such as pipelines, pumps, and heat exchangers, and ensures stable production processes.

2. Food and Beverage Industry: Filters production water, raw material liquids, and finished beverages, removes impurities such as suspended solids, colloids, and microorganisms, and ensures product quality and food safety.

3. Pharmaceutical Industry: Used for filtering liquid medicines, purified water, etc., prevents impurity contamination, meets GMP production requirements, and ensures drug quality and safety.

4. Industrial Circulating Water: Removes sediment, algae, rust, and other impurities in circulating water, prevents pipeline blockage and equipment corrosion, improves the utilization rate of circulating water, and reduces operating costs.

5. Electronics Industry: Provides high - purity process water filtration for chip manufacturing and semiconductor production, intercepts tiny particulate impurities, and meets the strict water quality requirements of precision production.

6. Shipping Industry: Filters ship fuel, lubricating oil, cooling water, etc., ensures the normal operation of ship engines, boilers, and other equipment, and reduces maintenance frequency and costs.

FAQ

1. What should I do if the backwash frequency of the tubular automatic backwash filter is too high?：A too - high backwash frequency may be caused by several factors. First, the impurity content in the inlet water is too high, and pre - treatment at the front end can be strengthened, such as adding coarse filtration equipment. Second, the backwash parameters are set unreasonably, and the set value of the pressure difference can be appropriately increased or the set value of the operation time can be extended. Third, the filter screen is damaged, resulting in a decrease in the interception effect, and the filter screen needs to be checked and replaced in a timely manner.

2. How to choose the appropriate specifications of the tubular automatic backwash filter?：When choosing, it is necessary to comprehensively consider the processing flow rate, working pressure, filtration precision, and fluid properties. First, select a model within the corresponding flow rate range according to the actual processing flow rate. Then, determine the pressure - bearing capacity of the filter according to the system working pressure. Next, select the filtration precision according to the particle size of impurities in the fluid and the cleanliness requirements of downstream equipment. Finally, choose suitable filter screen and shell materials according to the corrosiveness and other characteristics of the fluid.

Conclusion

The tubular automatic backwash filter, with its significant advantages such as efficient filtration, intelligent self - cleaning, and large - flow processing, has become an ideal device for many industries to ensure fluid cleanliness and stable system operation. Whether in the food and pharmaceutical industries with strict product quality requirements or the complex petrochemical field, it can provide reliable solutions. Choosing our tubular automatic backwash filter means choosing an efficient, intelligent, and worry - free fluid purification solution to escort production and operation.

If you are interested in this product or have any questions, please feel free to contact us at any time.

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