An air filter and a method for manufacturing such an air filter

An air filter and filter technology, applied in chemical instruments and methods, separation methods, dispersed particle filtration, etc., can solve the problems of the collapsed air filter of the filter body, etc.

Active Publication Date: 2009-02-11
ZEHNDER GROUP NORDIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It is an object of the present invention to provide an air filter of the type mentioned at the outset, in which the problem of collapsing the filter body when the air filter is arranged in a horizontally oriented air channel does not cause the air filter to The manufacture of fully more expensive ways to solve

Method used

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  • An air filter and a method for manufacturing such an air filter
  • An air filter and a method for manufacturing such an air filter
  • An air filter and a method for manufacturing such an air filter

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Embodiment Construction

[0021] In the ensuing description of the invention, these are names, and as such, the meaning of these names is explained below:

[0022] A "circular" cross-section directly means a circular cross-section of a circle, which should not be understood as excluding cross-sections other than the ideal circle, since the invention can also be used to manufacture Cross-section filters, or for the manufacture of polygonal filters with rounded corners.

[0023] By "filter frame" is meant a fixed set of inlets to the filter in a plurality of sub-openings, which inlets may be defined by longitudinal and transverse partition walls. By "filter body" is meant a component comprising fibers and / or fiber bundles, the main extension of which is in the flow direction and which is preferably substantially evenly divided over the cross-sectional area of ​​the filter.

[0024] "Tow" means a bundle of fine fibers loosely boarded together into a separable tow.

[0025] "Fiber" means the individual s...

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Abstract

The present invention relates to an air filter and a method for manu not facturing such an air filter. The air filter comprises a filter frame (20) with passages for air, which is adapted to be attached inside a channel-shaped element (28), and a filter body, which comprises a plurality of curtains (19) of electrostatically chargeable fibres, which are attached to the filter frame (20) such that the filter body obtains an extension from the filter frame (20) to a position at a distance from and downstream the filter frame with respect to the intended flow direction of the air through the air filter. The air filter comprises attachment means (31 ) which is adapted to attach fibres in at least a peripheral portion of the filter body against a wall surface of the channel-shaped element (28).

Description

technical field [0001] The present invention relates to an air filter comprising: a filter frame having air passages, the filter frame being adapted to be attached in a channel-shaped member; and a filter body comprising a plurality of electrostatically Charged fiber curtains attached to the filter frame such that the filter body acquires the desired direction of flow relative to the air passing through the air filter, from the filter frame to the filter frame located at a distance from the filter frame An extension of a location at a distance downstream from said filter frame. Background technique [0002] Air filters of the type referred to herein are installed in passages through which air flows. These channels can be oriented horizontally or vertically and consist of airflow passages included in the ventilation system. Such airflow filters thus comprise a filter body with a plurality of electrostatically chargeable fiber curtains which separate particles from the air m...

Claims

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Application Information

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IPC IPC(8): B03C3/30B01D46/54
CPCB01D46/0032B03C3/82B01D46/0001B03C3/86B01D46/28B03C3/30
Inventor 拉尔斯－约斯塔·贝里斯特伦
Owner ZEHNDER GROUP NORDIC
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