Hand-operated back-washing filter with filter screen

A filter and backwashing technology, applied in the field of water treatment, can solve the problems of loose overall structure, large system influence and high overall cost, and achieve the effect of light conversion, simple overall structure and low overall cost

Inactive Publication Date: 2014-03-12
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in engineering applications, the backwashing of the filter screen is mostly realized through the combination of multiple filters. There are many connecting pipelines and valves, the overall structure is relatively loose and bulky, the overall cost is high, and the local water head loss is large. Normal work is greatly affected, and work efficiency is relatively low

Method used

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  • Hand-operated back-washing filter with filter screen
  • Hand-operated back-washing filter with filter screen
  • Hand-operated back-washing filter with filter screen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] refer to Figure 1 to Figure 9 . A manual backwash screen filter, which is composed of a sewage discharge assembly I, a water inlet chamber II, an intermediate chamber III, and a filter chamber IV; the water inlet chamber II is a hollow cylinder, and the water inlet chamber II is provided with a water inlet pipe 8 , the water inlet pipe 8 is provided with a water inlet pressure gauge 9, and three orifices are opened on the bottom of the water inlet chamber II to communicate with the inlets of the three filter elements 6 through the middle chamber III; the middle chamber III is set between the water inlet chamber II and the filter chamber IV Between them, the center of the middle chamber III is a central cylinder 13, along which the center of the central cylinder 13 is a circumference, and three circular tubular connection channels 14 are evenly distributed, and the three connection channels 14 are connected to the water inlet chamber II and the three filter elements 6....

Embodiment 2

[0031] refer to Figure 13 , Embodiment 2 is a manual backwashing screen filter, the basic structural features are similar to Embodiment 1, the difference is that the water inlet pipe 8 is located on the side circumference of the water inlet chamber II, and the outlet pipe 10 is located on the bottom surface of the shell 7. Parts of Embodiment 2 having the same structure as Embodiment 1 are denoted by the same reference numerals and will not be described again. The principle and implementation process of this embodiment are also the same as those of the first embodiment, so its description is omitted.

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PUM

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Abstract

The invention relates to a hand-operated back-washing filter with a filter screen. The hand-operated back-washing filter is composed of a sewage draining assembly, a water inlet cavity, a middle cavity and a filter cavity, wherein the sewage draining assembly comprises a sewage draining pipe, a handle, a sealing cover and a sewage inlet, the sewage draining pipe penetrates through the center of the water inlet cavity to reach the top end of the filter cavity, the middle cavity is in a hollow plum-column shape arranged symmetrically by taking the sewage draining pipe as a center, a sewage draining channel is arranged in the middle cavity, and the filter cavity is composed of a shell and multiple filter elements. When the filter works, the sealing cover is positioned at the middle part of two openings on the bottom surface of the water inlet cavity, the sewage inlet is closed by a side wall of the middle cavity, and at the moment, source water enters the filter elements to be filtered; impurities are accumulated in the filter element, when the difference of the inlet pressure and the outer pressure reaches the designed upper limit value, the handle is rotated, the sealing cover seals one opening on the bottom surface of the water inlet cavity, the sewage inlet is justly communicated with the sewage draining channel, and the filter element is in a back-flushing state. The hand-operated back-washing filter has compact structure and low manufacture cost, each filter element can perform back flushing independently, sewage drainage is performed in a nonstop manner, the impact on the normal operation of the system is little and the working efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of water treatment and relates to water filtering equipment, in particular to a manual backwashing screen filter. Background technique [0002] Mesh filter is the most widely used filter equipment in agricultural micro-irrigation system and industrial water treatment. At present, in engineering applications, the backwashing of the filter screen is mostly realized through the combination of multiple filters. There are many connecting pipelines and valves, the overall structure is relatively loose and bulky, the overall cost is high, and the local water head loss is large. Normal work is greatly affected, and work efficiency is relatively low. Contents of the invention [0003] The object of the present invention is to provide a screen filter with compact structure and convenient backwashing. [0004] The technical solution adopted by the present invention is: a manual backwashing screen filter, which is c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D29/68B01D29/52
Inventor 王新坤
Owner JIANGSU UNIV
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