Composite filter element and water purification system with same

Abstract

The invention discloses a composite filter element and a water purification system with the same. The composite filter element comprises a shell, an activated carbon rod and an ultrafiltration membrane, wherein a cavity is limited in the shell which is provided with a water inlet and a water outlet, the activated carbon rod is arranged in the cavity, an installation cavity is limited in the activated carbon rod, the activated carbon rod is provided with a water inlet channel which communicates the outer wall face of the activated carbon rod with the installation cavity, the water inlet channel is communicated with the water inlet, at least one part of the ultrafiltration membrane is arranged in the installation cavity, and a water outlet channel is arranged between the ultrafiltration membrane and the water outlet. By means of the composite filter element, filtration and sterilization to water are achieved, the bacterium exceeding problem is solved, and the water taste is promoted; meanwhile, the ultrafiltration membrane is embedded in the activated carbon rod, so that the ultrafiltration membrane is not prone to damage, primary filtration is conducted on the water through the activated carbon rod firstly before the water flows into the ultrafiltration membrane, the ultrafiltration membrane can be further protected, the service life is prolonged, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of water purification, more specifically, to a composite filter element and a water purification system having the same. Background technique [0002] Excessive bacteria has always been a "stubborn disease" in the water purification industry. As people pay more attention to the quality and safety of water purifiers, the secondary pollution caused by excessive bacteria needs to be solved urgently. In order to solve the above problems, different water purifier manufacturers have introduced technologies such as ultraviolet sterilizers, bromine resins, and activated carbon silver to sterilize and inhibit bacteria. Among them, silver-loaded activated carbon has the disadvantages of silver leaching and short antibacterial time; the bromine in PP cotton bromine resin is a strong oxidant, with heavy odor, and the residual bromine will corrode and oxidize the rubber pipe and PE pipe in the filtration system. Poor co...

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Problems solved by technology

Among them, silver-loaded activated carbon has the disadvantages of silver leaching and short antibacterial time; the bromine in PP cotton bromine resin is a strong oxidant, with heavy odor, and the residual bromine will corrode and oxidize the rubber pipe and PE pipe in the filtration system. Poor compatibility; ultraviolet sterilizers have no continuous sterilization function and are expensive, making it difficult to popularize

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