Ultralow-pressure multi-stage water purification device

Abstract

The invention relates to an ultralow-pressure multi-stage water purification device which comprises a communication device, a water purification tank, a heating device and a shell. A raw water outletis formed below the communication device. A first water purification assembly and a second water purification assembly are arranged in the water purification tank, the two assemblies exist independently, and the first water purification assembly is connected with the second water purification assembly. A detachable filter element is arranged in the first water purification assembly, the filter element is filled with pp cotton, compressed activated carbon and a hollow fiber ultrafiltration membrane, and a purified water outlet is formed below the first water purification assembly. A detachableultra-low-pressure U-shaped hollow fiber reverse osmosis membrane assembly is arranged in the second water purification assembly, and a pure water outlet is formed in the lower part of the second water purification assembly. The shell comprises a stainless steel inner shell, a PVC outer shell and a stainless steel water purification assembly outer shell, and an ultraviolet lamp used for sterilization is arranged on the inner side of the stainless steel inner shell.

Description

technical field [0001] The invention relates to the field of tap water purification devices. Background technique [0002] At present, tap water for domestic households is mainly drawn from water sources (surface water or groundwater) with relatively safe raw water quality through water plants. After sedimentation, it is coagulated, precipitated, filtered, sterilized and then transported to the water supply network. Disinfection currently uses chlorine-containing substances, such as chlorine gas, chloride and chlorine dioxide. Harmful substances such as residual chlorine and heavy metals will exist in the water treated in this way. , Moreover, in the existing tap water purification and transportation process, due to problems such as replacement and old pipes, when the tap water is transported to the user's home, turbidity often occurs. [0003] Most of the water purifiers on the market today have a single function. Small water purifiers only produce a certain level of wate...

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Problems solved by technology

[0003] Most of the water purifiers on the market today have a single function. Small water purifiers only produce a certain level of water and the purity of the water is not high; while water purifiers with high water purification purity are bulky, and the water purification process needs to be connected to electricity, which consumes resources. larger

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