Tap water filtering device

Abstract

The invention discloses a tap water filtering device. The tap water filtering device comprises a water inlet pipe, a filtering pipe and a water outlet pipe, which are fixed on a faucet, wherein the two ends of the filtering pipe are in thread connection with the water inlet pipe and the water outlet pipe respectively, and one ends, which are close to the filtering pipe, of the water inlet pipe and the water outlet pipe are respectively provided with a filter screen. The tap water filtering device provided by the invention is directly arranged on the faucet, a core is convenient to change, the price is low, and the tap water filtering device is worthy of popularization and application.

Description

technical field [0001] The invention relates to a filtering device, in particular to a tap water filtering device. Background technique [0002] The tap water process generally includes three steps; coagulation, adding aluminum chloride, aluminum sulfate or ferric chloride to the raw water to make suspended solids, colloids and other substances easy to precipitate and crystallize. Then it enters the sedimentation tank, after settling for a certain period of time, the outflow passes through a replica filter (or siphon filter) composed of quartz sand, and finally adds chlorine solution for disinfection. It has following shortcoming: [0003] First, the tap water treatment process is the primary filtration of hundreds of tons or even tens of thousands of tons of water. Because the number of stages is too large, it is difficult to guarantee the filtration effect. [0004] Second, judging from the above process, tap water filtration is actually relatively simple filtration. The...

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Problems solved by technology

[0005] Third, the addition of chlorine solution, although antibacterial and sterilizing, has actually become a major hidden danger. Chloroform produced by chlorine gas is recognized as a strong carcinogen. The latest data in 2010 shows that there are 200 more cancer patients in my country than in 1980 Many times, this is inseparable from the addition of chlorine to tap water

[0007] Finally, the tap water that reaches each household has more or less residual harmful substances, which will cause adverse effects on people's health.

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