Prefilter

A pre-filter and filter net technology, which is applied in the direction of membrane filter, fixed filter element filter, filter separation, etc., can solve the problems of unopenable, poor sewage discharge reliability, etc., and achieve high sewage discharge reliability and smooth sewage discharge effect

Pending Publication Date: 2019-08-16
HAINING SHUIXIANG WATER PURIFICATION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, since the blowdown valve is usually only installed at one end of the shell, a single blowdown valve is prone to failures such as failure to open due to factors such as rust, and the blowdown reliability is poor

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Embodiment Construction

[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0057] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0058] Please refer to Figure 1 to Figure 12 , figure 1 The structural diagram of the pre-filter provided for the first specific embodiment of the present invention; figure 2 for figure 1 explosion map; image...

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Abstract

The invention discloses a prefilter. The prefilter comprises a shell, a filtering assembly, a water inlet, a first sewage discharging valve and a second sewage discharging valve, wherein the filteringassembly is arranged in the shell, the water inlet is used for allowing a washing liquid to flow into the filtering assembly to flush dirt, and the first sewage discharging valve and the second sewage discharging valve are respectively arranged at two ends of the shell and communicate with the filtering assembly. According to the prefilter provided by the invention, the first sewage discharging valve or the second sewage discharging valve can be selectively opened, so that the dirt is discharged from the first sewage discharging valve or the second sewage discharging valve. Due to the fact that the first sewage discharging valve and the second sewage discharging valve are respectively arranged at two ends of the shell, bidirectional sewage discharge is realized, and the risk that sewage discharge cannot be realized due to damage of a single sewage discharging valve is reduced, so that the failure rate is low, sewage discharge is smooth, and therefore sewage discharge reliability of the prefilter provided by the invention is relatively high.

Description

technical field [0001] The invention relates to filtering equipment, in particular to a pre-filter. Background technique [0002] Existing tap water often causes secondary pollution due to pipe rust, leakage, etc., which seriously endangers health and the service life of subsequent equipment. Install filters to remove impurities such as rust, sand and algae in tap water pipes. [0003] Existing pre-filters include a housing, a filter screen and a drain valve, and the drain valve is usually located at the bottom. During normal filtration, the sewage valve is closed, and the raw water flows from the outside of the filter to the inside to achieve raw water filtration. The impurities generated during the filtration process mostly adhere to the filter; when the filter is flushed, the sewage valve is opened, and the flushing liquid flows from the inside of the filter. The outside is used to flush the adhered impurities, and the flushing liquid containing impurities is discharged...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D29/11B01D29/66B01D29/60B01D29/94B01D35/143B01D35/30
CPCB01D29/11B01D29/66B01D29/606B01D29/94B01D35/143B01D35/30B01D2201/0415B01D2201/34B01D2201/302
Inventor 胡效军陈志超
Owner HAINING SHUIXIANG WATER PURIFICATION EQUIP
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