HEIDLAND filter, German HEIDLAND model, HEIDLAND price

The HEIDLAND filter is an indispensable device on media transport pipelines, typically installed at the inlets 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 water to be treated passes through the filter cartridge with its mesh, impurities are retained. When cleaning is required, simply remove the detachable filter 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 troublesome 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. To change the function of a machine instruction, only the corresponding microprogram needs to be rewritten; to add a machine instruction, only a segment of microprogram needs to be added 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.

HEIDLAND filter principle

Water to be filtered enters through the inlet, flows through the filter mesh, and exits into the user's required pipeline for process circulation. Particulate impurities in the water are trapped inside the filter mesh. As this cycle continues, the amount of trapped particles increases, slowing the filtration rate. 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 differential pressure reaches a 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 contaminants. Once the filter mesh is cleaned, the pressure drop decreases to a minimum, and the system returns to the initial filtration state for normal operation. It operates in two modes: inspection mode and identification mode. In inspection 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 card reader sends a different response to the controller's inspection command. In this response, the card reader transmits the internal code data read from the proximity card to the access controller, switching the access controller to identification mode. In identification mode, the access controller analyzes the proximity card's internal code, compares it with card data stored in the device, and executes subsequent actions. After completing the data reception, the access controller sends a command response to the card reader to restore its status, and the access controller returns to inspection mode.

HEIDLAND 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 material 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 layer. In difficult-to-filter suspensions (such as colloids), mixing in coarser solid particles like diatomaceous earth or expanded perlite can loosen the filter cake layer. When the filtrate viscosity is high, heating the suspension can reduce viscosity. These measures all accelerate filtration speed.

HEIDLAND filter performance characteristics

1. High-efficiency, precise filtration: Special-structure filter disc filtration 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 others. Users can select filter discs of different precisions according to 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 and designed modularly. Users can select units 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 a water volume of approximately 300m3/h occupies only about 6m2 (for general water quality, filtration grade 104μ).

Weidou Intelligent Technology specializes in selling German HEIDLAND filters, HEIDLAND filter meshes, HEIDLAND filter cartridges, HEIDLAND filtration systems, HEIDLAND oil filters, HEIDLAND water purification filters, HEIDLAND filtering machines, HEIDLAND filtration equipment, HEIDLAND filter tubes, HEIDLAND vacuum filters, HEIDLAND filter controllers, HEIDLAND filter valves, HEIDLAND automatic filters, HEIDLAND filter ball valves, and HEIDLAND water strainers. HEIDLAND products are original imports from Germany. Customers are welcome to inquire and place orders.