Water-saving water purification machine

Abstract

The invention discloses a water-saving water purification machine. The water-saving water purification machine comprises a water pump, a primary filter drum set, an RO film set and a water distributing pressure drum. A water inlet pipe is sequentially. connected with a water distributing pressure drum water inlet pipe, the primary filter drum set and the RO film set. A concentrated water washing pipe is connected with a domestic water washing pipe and a concentrated water pipe. A water return pipe separated from the concentrated water pipe is communicated with the water distributing pressure drum water inlet pipe. A proportioner of a waste water outlet pipe separated from the concentrated water pipe can adjust water discharge quantity. An air inflation bag arranged in the water distributing pressure drum comprises a mixed water storage region and a pressure water storage region. The water distributing pressure drum water inlet pipe is located at the mixed water storage region, and a water outlet pipe is located at the pressure water storage region. During use of domestic water, water with a high TDS value in the primary filtering drum set and the RO film set can be drained out quickly, the TDS value of the delayed recirculated water can be increased, the water recirculation volume and the water discharge volume can be adjusted according to quality of inlet water of the water purification machine and water usage habits of users, and the service life of RO films is prolonged while the quality of purified water is guaranteed.

Description

technical field [0001] The invention relates to a pure water production equipment. Background technique [0002] The water-saving backflow type water purifiers currently on the market generally return the concentrated water directly to the primary filter cartridge group, and the water from the domestic faucet will flow out the return water with high TDS value in the filter cartridge. Differences in habit and raw water quality will result in reduced service life of the RO membrane and unguaranteed pure water quality: 1. When the user uses less domestic water, the water with a higher TDS value in the filter cartridge will flow out less (the newly entered raw water and The high-concentration concentrated water is mixed to reduce the water in the filter cartridge to the same as the incoming water, about 7 parts of the effluent water is needed to restore 1 part of the inflowing concentrated water), and the raw water of the filter cartridge can be evenly proportioned, which will c...

AI Technical Summary

Problems solved by technology

[0002] The water-saving backflow type water purifiers currently on the market generally return the concentrated water directly to the primary filter cartridge group, and the water from the domestic faucet will flow out the return water with high TDS value in the filter cartridge. Differences in habit and raw water quality will result in reduced service life of the RO membrane and unguaranteed pure water quality: 1. When the user uses less domestic water, the water with a higher TDS value in the filter cartridge will flow out less (the newly entered raw water and The high-concentration conce

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