Multi-stage water purification integrated device and zero-cold-water gas water heater applying multi-stage water purification integrated device

• Main Authors: QIU MINGGUI, GUO LINGHUA, PAN YEJIANG, PENG JINDONG, SHI YANLONG, DENG FEIZHONG
• Format: Patent
• Language: Chinese; English
• Published: 05.06.2020
• Subjects: BLASTING; FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL; HEATING; LIGHTING; MECHANICAL ENGINEERING; RANGES; VENTILATING; WEAPONS

The invention discloses a multi-stage water purification integrated device and a zero-cold-water gas water heater applying the multi-stage water purification integrated device. The multi-stage water purification integrated device comprises a pre-filter assembly, a water purification filter assembly and a water return assembly, wherein the pre-filter assembly, the water purification filter assemblyand the water return assembly are sequentially arranged between the water inlet end and the water outlet end of tap water. According to the multi-stage water purification integrated device, the waterpurification filter assembly, the pre-filter assembly and the water return assembly are sequentially connected, so that the installation space is saved, the installation and pipe arrangement are simplified, and bathing water and kitchen water purification can be output, the water way of a water purification filter body is separated from the water way of a water return water way, it is ensured that the water return water w