Manufacturing method of pre-proposed filtering and pressure type backwashing water purifier

Abstract

The invention relates to a manufacturing method of a pre-proposed filtering and pressure type backwashing water purifier. The water purifier comprises a pressure type backwashing and discharging unit, a pressurizing pump, a pressure tank, a compressed active carbon filter element, a post-proposed active carbon filter element and a microfiltration membrane filter device. The water purifier is characterized by further comprising a reverse osmosis (RO) membrane filter device, wherein a spiral inner thread joint connected with a barrel is arranged on an upper seal cover of a closed container, a spiral outer thread joint connected with the upper seal cover is formed at the upper opening of the barrel, a circular gripper tube is arranged at the bottom of the closed container and can effectively fix the membrane shell of the RO membrane, an RO membrane filter element is arranged in the middle of the membrane shell, an insertion nozzle is arranged at the middle part of the upper end of the membrane shell, a seal ring is arranged at the lower end of the membrane shell, a concentrated water channel is arranged around the membrane shell, a water inlet is formed at the top of the closed container and a water outlet is formed at the bottom of the closed container. The water outlet of the microfiltration membrane filter device is communicated with the water inlet of the RO membrane filter device. The pre-proposed filtering and pressure type backwashing water purifier is economic and practical.

Description

technical field [0001] The invention relates to water purification equipment, in particular to the manufacturing field of drinking water purifiers used by families, enterprises and institutions. Background technique [0002] The increasing pollution of water resources is a serious threat to human life. The pollution of water resources has the most serious impact on rural areas. Basically, rural residents who have the conditions dig wells to get water, and those who have no conditions drink water from rivers and mountains. More than 90% of rivers and groundwater are polluted or even seriously polluted, and the pollution is heinous, especially underground surface water and tap water, iron and manganese, suspended solids, colloids, toxic by-products, pesticides, bacteria, sediment, rust, Pollution hazards of solid impurities, organic chemicals, pesticides, fertilizers, acid cancers, heavy metals and metal ions, and chloroform, even if there is well water, are seriously exceedin...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for making a water purifier with pre-filtration and air pressure backwashing, so as to solve the problem that part of tap water exceeding the standard or underground surface water is better than the "Drinking Water Hygienic Standard" of the People's Republic of China

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