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Self-cleaning method and filter for a filter

A filter and self-cleaning technology, applied in chemical instruments and methods, fixed filter element filters, separation methods, etc., can solve the problems of inability to automatically clean, filter failure, accumulation of debris on the filter screen, etc., to improve self-cleaning Efficiency, the effect of improving uniformity

Active Publication Date: 2017-03-29
HAIER GROUP TECHN R&D CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the filter with this structure cannot be cleaned automatically during use, which leads to the accumulation of debris attached to the filter after a period of use as the filter is used for a period of time, resulting in the filtration device failure

Method used

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  • Self-cleaning method and filter for a filter
  • Self-cleaning method and filter for a filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as Figure 2 to Figure 4 As shown, in this embodiment, the housing 2 is provided with two vertical beams 71 arranged relative to the axis of the housing. The left and right sides of the two vertical beams 71 are connected with the filter screen 8 respectively. The width of the filter screen 8 is greater than the linear distance between the two vertical beams 71, and less than half of the circumference of the housing side wall 17, so that the filter screen 8 can produce an outward expansion displacement under the action of the water flow, and the outwardly expanded filter screen The mesh is not in contact with the housing side wall 17 . Preferably, the distance between the expanded filter screen 8 and the axis of the casing is approximately equal to the distance between the vertical beam 71 and the axis of the casing 2 .

Embodiment 2

[0051] Such as figure 2 As shown, in this embodiment, the lower end of the housing side wall 17 is provided with an air inlet 6 . The air inlet 6 blows air to the filter screen through the uniform wind structure. The wind uniform structure includes an annular uniform flow passage 10 arranged circumferentially along the bottom end of the side wall 17; preferably, the annular uniform flow passage 10 protrudes from the inner surface of the side wall 17; further preferably, the The annular uniform flow channel 10 is integrally formed with the side wall 17.

[0052] The annular uniform flow channel 10 includes an inner wall 11 of the uniform flow channel and an outer wall 12 of the uniform flow channel arranged at a certain interval; preferably, the outer wall 12 of the uniform flow channel is composed of a shell side wall 17 . At least one air inlet 6 is provided on the inner wall 11 of the uniform flow channel, and at least one through hole communicating with the air pump is p...

Embodiment 3

[0055] In this embodiment, the skeleton includes more than two vertical beams.

[0056] Such as Figure 5 and Figure 6 As shown, the skeleton 7 includes four vertical beams 71, and the four vertical beams 71 are arranged symmetrically with respect to the housing 2; filter screens 8 are laid between adjacent vertical beams 71, and the width of the filter screen 8 is larger than that of the corresponding The distance between adjacent vertical beams 71 and / or the height of the filter screen 8 is greater than the distance between the bottom cover 16 and the frame connecting portion 72 .

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Abstract

The invention discloses a filter self-cleaning method and a filter. The self-cleaning method is characterized in that air is introduced into the filter at intervals to drive a filter screen to vibrate in order to remove impurities adhered on the filter screen. A special structure is combined with an air blowing and shock principle, and air blowing and vibration are used after filtering is carried out for a period of time to automatically clean the filter. The filter comprises a shell, the internal space of the shell is divided into two parts of the filter screen, the filter screen in a loose state is arranged in the shell through a skeleton, and the shell is connected with an air blowing device for blowing air to the filter screen. The filter screen in a loose state is loosely arranged in the shell of the filter through the skeleton, so the filter screen vibrates under the combined action of water flow and bubbles; and especially the filter screen is locally extruded, wrinkled and deformed in the vibration process in order to clean the filter screen in a rubbing way, so the self-cleaning efficiency of the filter screen is improved.

Description

technical field [0001] The invention relates to a filtering device, in particular to a filter self-cleaning method and the filter. Background technique [0002] The water treatment process is the process of wastewater treatment and recycling, so in order to ensure the quality of backwater, it is very necessary to have a filter with reliable results. However, some filters used in existing home appliances generally adopt the filter screen type. By passing the waste water through the filter screen, the sundries are attached to the screen to realize the separation of the sundries in the waste water and achieve the efficiency of waste water filtration. Purpose. [0003] For example, the Chinese patent with application number 99240468 includes a filter upper body, a filter core, and a filter cylinder. The filter upper body has a water inlet, a water outlet, and a middle outlet leading to the filter core. The water outlet; the filter element is composed of a hollow frame and a fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D29/23B01D29/72B01D29/66
Inventor 劳春峰王先超车敏武凤玲
Owner HAIER GROUP TECHN R&D CENT