Water purification machine and water production control method

Abstract

The invention discloses a water purification machine and a water production control method. The water production control method is as follows: S1, detecting water pressure value P, determining the detected P and P1 which is greater; S2, when the P detected in the S1 is less than P1, entering a water production stage; S3, during the water production stage, when the detected P is greater than or equal to P2, entering a standby stage; S4, when the P detected in the S1 is greater than P1, entering the standby stage; S5, during the standby stage, determining the detected P and P1 which is greater; S6, when P detected in the S5 is greater than or equal to P1, maintaining the standby stage; S7, when P detected in the S5 is less than P1, detecting whether change value (delta P) of P within T1 is greater than (delta py); S8, when (delta P) detected in the S7 is greater than (delta py), maintaining the standby stage; and S9, when (delta P) detected in the S7 is less than or equal to (delta py), entering the water production stage. According to the water production control method, frequent start of the water purification machine can be prevented.

Description

technical field [0001] The invention relates to the field of domestic electrical appliances, in particular to a water purifier and a water production control method thereof. Background technique [0002] At present, the water purifiers with water storage pressure tanks that are common on the market control the start and stop of water production mostly rely on high pressure switches for control. When the water storage pressure tank is full of water, the high pressure switch is disconnected, and the system stops water production. When the high pressure switch is closed, the system starts water production again. If this control method is adopted, when the user takes water from the water storage pressure tank, the pressure will be released instantaneously due to the opening of the tap, so that the high-pressure switch will be closed, so that even if the user only takes a small amount of water, the system will start water production. And after only getting little water to start...

AI Technical Summary

Problems solved by technology

This leads to frequent start-up of the entire water system, increases the failure rate of solenoid valves, booster pumps and other components, and shortens the service life

On the other hand, in order to protect the filter element, there is generally a flushing process before the water production is started and after the water production is completed, and frequent startups cause a waste of flushing water

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