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1. (WO2017152317) MULTI-STAGE WATER FILTRATION SYSTEM USING CONSTANT-PRESSURE CONTROL TECHNOLOGY

Pub. No.:    WO/2017/152317    International Application No.:    PCT/CN2016/075731
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Sun Mar 06 00:59:59 CET 2016
IPC: C02F 9/02
F04B 49/06
Applicants: MA, Jun
马骏
Inventors: MA, Jun
马骏
Title: MULTI-STAGE WATER FILTRATION SYSTEM USING CONSTANT-PRESSURE CONTROL TECHNOLOGY
Abstract:
Provided is a multi-stage water filtration system using constant-pressure control technology, comprising a booster pump (1), a multi-stage filtration mechanism, and a central control device; said booster pump (1) and multi-stage filtration mechanism are connected to a water pipe (8); the multi-stage filtration mechanism comprises a first filter (2), a second filter (3), a third filter (4), and a fourth filter (9); the first filter (2), second filter (3), third filter (4), and fourth filter (9) in the filtration system filter water in multiple stages, thus ensuring the reliability of the water filtration; at the same time, the booster pump (1) stably controls the water flow and the flow meters (10) perform real-time monitoring/control and feedback regarding the water flow at each position, thus improving water filtration stability and reliability; furthermore, a first resistor (R1) and a second resistor (R2) delay gate-capacitance charging of the MOS (Q1, Q2) so as to cause the MOS (Q1, Q2) to conduct electricity, thus preventing common-mode conduction, improving the reliability of the circuit, and further improving the reliability of the water filtration system.