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Filter unit

A filter and controller technology, applied in the fields of dispersed particle filtration, chemical instruments and methods, separation methods, etc., can solve problems such as frequent occurrences during rough grinding, clogging of vortex generators, etc.

Active Publication Date: 2015-12-30
HUSQVARNA AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, field trials have shown that the PowerSwirl cyclone technology has the problem that the flow channels of the swirl generators are susceptible to clogging by larger objects, which occurs frequently during rough sanding with varying floor coverings

Method used

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Examples

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Embodiment Construction

[0016] Reference will now be made in detail to the implementation of the technique. Each example is provided by way of illustration only, not as a limitation of the technique. It will be apparent to those skilled in the art that various modifications and variations can be made in the technology without departing from the scope or spirit of the technology. For example, features described as part of one implementation can be used with another implementation to yield a still further implementation. Therefore, it is intended that the present technology covers such modifications and variations as are within the scope of the technology.

[0017] The present invention solves the problem of PowerSwirl technology's susceptibility to blockage by large objects. In particular, the present technology is a dust collector that can provide a substantially constant suction force. The technology consists of a vortex generator and two cyclones. The first cyclone (inner cyclone) may be integr...

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Abstract

The invention discloses a filter unit, and the filter unit comprises an outlet which is coupled to an inlet in a fluid manner; a filter medium which enables a flowing path to be divided into a clean part and a pollution part, and enables fluid to enter from the inlet and to pass through the filter medium before the fluid leaves from the filter through the outlet; an integrated pressure container which is coupled to a clean filter side part of the filter unit; and a back flush arrangement which enables the filter unit to be flushed by the flowing of the fluid passing through the filter unit in reverse rotation. The back flush arrangement comprises a valve which is coupled to the integrated pressure container in a fluid manner.

Description

[0001] This application is a divisional case of a Chinese invention patent application (international application number PCT / SE2012 / 051062) with an application date of October 5, 2012, application number 201280060049.5, and the name "dust collector with constant suction force" Apply. technical field [0002] The present disclosure relates to a filter unit. Background technique [0003] Most dust collectors today are based on filtration technology using filter media consisting of socks or pleated cartridge filters, usually integrally formed in a container with an inlet similar to the cyclone inlet middle. [0004] The disadvantage of this filtration technology is that, with moderate amounts of dust, the pressure drop increases and the suction power decreases, which is the main disadvantage. Concrete sanding, for example, requires that all abrasive residue be picked up before the next sanding cycle. Existing methods for filter cleaning require the vacuum to be released seve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D45/16B01D45/18B01D46/24B01D46/48B01D50/00B04C5/081B04C5/103B04C5/185B04C5/22B04C7/00B04C9/00
CPCB01D45/16B04C5/081B04C7/00B01D45/18B01D46/2411B01D46/48B04C5/103B04C5/185B04C5/22B04C9/00B04C2009/004B01D50/20B01D45/02B01D45/12
Inventor 英瓦尔·黑尔格伦丹尼尔·约翰松
Owner HUSQVARNA AB
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