Tube Type Automatic Backwash Filter-LEFILTERWATER

Introduction

The tube type self-cleaning filter adopts full PLC intelligent control, enabling long-term online filtration. It is composed of one or more filtration loops connected to the main pipeline via inlet/outlet valves, with each loop called a "row" and each row containing several filtration units. The total number of rows and columns is determined by process parameters such as flow rate, flow velocity, viscosity and particle average size. It is applied in hydrofining, hydrocracking, oilfield reinjection water, clean coal gasification steam condensate, coalbed methane, oil sludge filtration, liquid chlorosilane removal, petrochemical, pharmaceutical and new energy industries, filtering water suspended solids, particles, scale, algae and rust.

Working Principle

Internal backwash: Uses filtered raw material as backwash medium. When receiving a backwash signal, the raw material inlet valve of a filtration unit closes, and the sewage valve opens. Under its own pressure, the filtrate flows reversely to wash away solid particles accumulated on the outer surface of the filter element and discharge them into the sewage pipe. After cleaning, the sewage valve closes, the raw material inlet valve opens, and the unit resumes filtration. This mode is suitable for scenarios with low colloid content, good fluidity and outlet pressure >0.4MPa.
External backwash: Uses other gases as backwash medium to pressurize and flush the liquid in the tank. When receiving a backwash signal, the raw material inlet and outlet valves of a filtration unit close, the backwash medium inlet and sewage valves open. Driven by gas pressure, the filtrate flows reversely to wash away solid particles and discharge them into the sewage pipe. After cleaning, the relevant valves reset, and the unit resumes filtration. This mode is suitable for scenarios with high colloid content, poor fluidity and outlet pressure <0.4MPa.

列管式自动反冲洗过滤器2

Features

PLC intelligent control: Full automatic operation with differential pressure/time control (differential pressure priority).
Modular design: Composed of multiple rows and columns of filtration units, flexible to match process requirements.
Multiple filter element options: Available in metal sintered, wedge wire, mesh, polypropylene and ceramic filter elements.
Online backwash regeneration: Filter elements can be regenerated via auxiliary gas or clean liquid, extending service life.

Advantages

Regenerable filter elements: Multiple filter element types can be regenerated via backwash, reducing replacement costs.
PLC control system: Intelligent differential pressure and timer control, ensuring stable and reliable automatic operation.
High-performance precision filter elements: Made of corrosion-resistant materials, providing high filtration efficiency and long service life.
Reliable key components: High-quality automatic valves and control system ensure stable performance under complex working conditions.

列管式自动反冲洗过滤器3

Application

Petrochemical industry: Hydrofining, hydrocracking and process liquid filtration.
Oilfield industry: Reinjection water filtration and oil sludge treatment.
Coal chemical industry: Coal gasification condensate and coalbed methane filtration.
New energy industry: Liquid chlorosilane and new energy material process water filtration.
Pharmaceutical industry: Purification of pharmaceutical liquids and industrial water.