Hemodialysis water treatment system equipment capable of continuously supplying water

The invention relates to the technical field of hemodialysis water purification, and discloses a sustainable water supply hemodialysis water treatment system device which comprises a water inlet assembly, a pretreatment assembly, a first-stage reverse osmosis assembly, a second-stage reverse osmosis assembly and a bypass assembly. The water inlet assembly is connected with a raw water supply pipeline and the pretreatment assembly, the pretreatment assembly is connected with the first-stage reverse osmosis assembly, the first-stage reverse osmosis assembly is connected with the second-stage reverse osmosis assembly, and the second-stage reverse osmosis assembly is connected with the hemodialysis equipment; the bypass assembly is used for bypassing one or more of the pretreatment assembly, the primary reverse osmosis assembly and the secondary reverse osmosis assembly. According to the invention, the bypass assembly bypasses the pretreatment assembly which breaks down, or bypasses the primary reverse osmosis as