Bag type filter cartridge for filter

Abstract

The invention relates to a bag type filter cartridge for a filter. The bag type filter cartridge comprises a filter layer, wherein a sealing flange is arranged at the top end of the filter layer; a water inlet is formed on the sealing flange; and an end socket is arranged at the bottom of the filter layer. The bag type filter cartridge is characterized in that a framework for supporting the filter layer is arranged inside the filter layer and is formed by connecting a plurality of pipe bodies of which two ends are provided with openings; a plurality of grid holes are formed in the pipe walls of the pipe bodies; and a plurality of blades which incline downwards in a radial mode are distributed in the openings at the lower ends of the pipe bodies uniformly along the radial directions of the pipe bodies. By the bag type filter cartridge, a filter basket is not needed to be used, and the loss cost of the filter basket is saved. According to the bag type filter cartridge, a filter medium fluid forms eddy by the framework, and liquid to be filtered is attached to the surface of the filter cartridge and a wave refracting layer uniformly, so that the dirt storage amount and filter efficiency of the product are improved greatly, and the service life of the product is prolonged. Compared with the ordinary filter cartridge, the bag type filter cartridge has the advantages that: the filter efficiency is high, the dirt storage amount is large, the service life is prolonged by over 5 times, and the filter area is 3 times that of the ordinary filter cartridge.

Description

technical field [0001] The invention relates to a filter element, in particular to a bag type filter element used on a filter. Background technique [0002] The filter is a pressure filter device, mainly composed of filter cylinder, filter cylinder cover and opening mechanism, filter element (filter bag, filter element) and other main components. The filtrate flows into the filter cylinder from the side inlet pipe of the filter shell , the filter element itself is installed in the filter cylinder body, the liquid penetrates through the filter element of the required fineness level to obtain qualified filtrate, and the impurity particles are intercepted by the filter element. The machine is very convenient to replace the filter bag, and there is basically no material consumption for filtering. [0003] Since the specifications (filter precision, filter area) of the filter bag or filter element in the filter have been fixed, as the filtration time prolongs, the impurities dep...

AI Technical Summary

Problems solved by technology

[0005] For working conditions with large flow rates, multi-bag / core filters are generally used. Some working conditions that require high filtration accuracy require additional filter systems for further multi-layer filtration, which increases the systemic investment cost.

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