Household purified water treatment device

Abstract

The invention discloses a household purified water treatment device. The household purified water treatment device comprises a melt-blown core lauter tank, a one-way valve, a hollow fiber membrane component, a pressure sensor and a diaphragm type gas pressure tank, wherein a water outlet end of the melt-blown core lauter tank is communicated with a water inlet end of the hollow fiber membrane component through a communicating pipe; the one-way valve is arranged on the communicating pipe; a water outlet end of an ultrafiltration membrane component is connected with a purification water pipe; and the pressure sensor and the diaphragm type gas pressure tank are arranged on the purified water pipe. The household purified water treatment device has the advantages that: through dual-stage treatments of a melt-blown core and a hollow fiber membrane, the water quality of yield water reaches a national standard of drinking water; when a mixedly-used water faucet is open, the hollow fiber membrane can be washed positively and back flushed to ensure the normal operation of the hollow fiber membrane and prolong the service life of the device, and simultaneously the flushing water can be used as living mixedly-used water to save fresh water resources; and a control mode adopting the pressure sensor is adopted to automatically realize the open and close of a water pump, save energy and water and prevent a water tank from causing secondary pollution.

Description

technical field [0001] The invention relates to a household water purification treatment device, in particular to a household water purification device suitable for rainwater and other household self-provided wells as water sources. Background technique [0002] Water resources are fundamental to the survival of human beings, and for island villages and towns, fresh water resources are especially precious. Take the sea island villages and towns of Zhoushan as an example. In order to ensure the supply of fresh water, every household basically has a water tank and a water cellar to collect and store the runoff of roof rainwater during the rainy season for use in times of drought. However, because the rainwater runoff is stored in the water cellar for a long time, the sanitary conditions cannot be effectively guaranteed, and there is no protection of disinfectants such as residual chlorine. The biological and chemical stability of the water quality is poor, and it is easy to br...

AI Technical Summary

Problems solved by technology

A variety of household water purification devices with ultrafiltration membranes as the main processing unit have also emerged. However, these household water treatment devices with ultrafiltration membranes generally do not have the function of forward washing and backflushing. A large amount of impurities and organic matter, these impurities provide a platform for bacteria to multiply, resulting in a decrease in flux or even clogging of the ultrafiltration membrane, greatly reducing the water passing capacity, and eventually causing failure

At the same time, some household water purification devices are equipped with water tanks, which can easily cause secondary pollution, and household water purification devices are expensive, which also hinders the promotion and application of ultrafiltration membranes in rural areas

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