EIF filter, German EIF model, EIF price

The EIF filter is an essential device on media transport pipelines, typically installed at the inlet of pressure reducing valves, relief valves, constant water level valves, and other equipment. The filter consists of a housing, stainless steel filter mesh, blowdown section, drive mechanism, and electrical control components. As the water to be treated passes through the filter cartridge, impurities are retained. When cleaning is required, simply remove the detachable cartridge, clean it, and reinstall it, making operation and maintenance extremely convenient. It acts as the "decision-making unit" that issues commands, coordinating and directing the operation of the entire computer system. Controllers are divided into combinational logic controllers and microprogrammed controllers, each with its own advantages and disadvantages. Combinational logic controllers are difficult to design and have complex structures; once designed, they cannot be modified or expanded, but they offer high speed. Microprogrammed controllers are easy to design, have simple structures, and are easy to modify or expand. Modifying the function of a machine instruction only requires recompiling the corresponding microprogram; adding a machine instruction only requires adding a segment of microprogram to the control memory. However, it operates by executing a segment of microcode. A specific comparison is as follows: Combinational logic controllers, also known as hardwired controllers, are composed of logic circuits and rely entirely on hardware to implement instruction functions.

EIF filter principle

Water to be filtered enters through the inlet, flows through the filter screen, and exits into the user's required pipeline for process circulation. Particulate impurities in the water are trapped inside the filter screen. As this cycle continues, the amount of trapped particles increases, slowing the filtration speed. Meanwhile, untreated water continues to enter, causing the filter pores to become increasingly clogged, creating a pressure difference between the inlet and outlet. When this pressure difference reaches the set value, the differential pressure transmitter sends an electrical signal to the controller. The control system starts the drive motor, which rotates the shaft via the transmission assembly. Simultaneously, the blowdown port opens to discharge the waste. Once the filter screen is cleaned, the pressure difference drops to its minimum, and the system returns to the initial filtration state for normal operation. It operates in two modes: patrol mode and identification mode. In patrol mode, the controller continuously sends query codes to the card reader and receives responses. This mode persists until the card reader detects a card. Upon detecting a card, the reader sends a different response to the controller's patrol command, transmitting the internal code data read from the proximity card to the access controller, switching it to identification mode. In identification mode, the access controller analyzes the proximity card's internal code, compares it with stored card data, and executes subsequent actions. After processing the data, the access controller sends a response to the card reader to reset its status, and the access controller returns to patrol mode.

EIF filter filtration speed

When solid particles in a suspension are large and uniform in grain size, the pores in the filter cake layer are relatively open, allowing the filtrate to pass through at a higher speed. Using coagulants to aggregate fine particles into larger clumps helps improve filtration speed. For suspensions where solid particles settle quickly, filters that feed onto the upper part of the filter medium are used, aligning the filtration direction with gravity. Coarse particles settle first, reducing clogging of the filter medium and filter cake. In difficult-to-filter suspensions (such as colloids), mixing in coarser solid particles like diatomaceous earth or expanded perlite can loosen the filter cake. If the filtrate viscosity is high, heating the suspension can reduce viscosity. These measures all accelerate filtration speed.

EIF filter performance characteristics

1. High-efficiency, precise filtration: Special structured filter disc technology offers precise and sensitive performance, ensuring that only particles smaller than the required size enter the system, making it the most effective filtration system. Specifications include 5μ, 10μ, 20μ, 55μ, 100μ, 130μ, 200μ, and more. Users can select filter discs of different precisions based on water usage requirements. System flow rate can be flexibly adjusted as needed. 2. Standard modular design, space-saving: The system is based on standard disc filter units with a modular design. Users can select modules as needed, offering flexibility and strong interchangeability. The system is compact and occupies minimal space, allowing flexible installation in corner spaces. For example, equipment handling approximately 300m3/h of water occupies only about 6m2 (for general water quality, filtration grade 102μ).

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