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A method for controlling a booster pump of a water purifier

A control method and booster pump technology, which is applied in the field of water treatment, can solve the problems of poor user physical examination, short pressure stroke, short device life, etc., and achieve the effects of easy understanding and implementation, low cost and simple scheme

Active Publication Date: 2020-05-19
HANGZHOU JIUYANG WATER PURIFICATION SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the pressure stroke of the high-pressure switch is short, that is, the pre-set pressure difference between the high-pressure Pe and the low-pressure Ps is small, generally 0.1MP, so that the high-pressure switch can easily drop from the high pressure Pe to the low pressure Ps when the user's water consumption is small, resulting in Frequent start-up of the water purifier results in short service life of the device and poor physical examination of the user

Method used

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  • A method for controlling a booster pump of a water purifier
  • A method for controlling a booster pump of a water purifier
  • A method for controlling a booster pump of a water purifier

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Embodiment 1

[0044] A control method for a booster pump of a water purifier, the water purifier includes: a booster pump and a pressure tank; figure 1 As shown, the method may include steps S11-S12:

[0045] S11. Obtain a first relational expression between the working current of the booster pump and the pressure of the pressure barrel;

[0046] In the embodiment of the present invention, according to the law of energy conservation, it can be known that the energy Q1 provided by the water inlet pressure and the energy Q2 provided by the booster pump are approximately equal to the energy Q3 consumed by the head loss, the energy Q4 consumed by the reverse osmosis membrane water production, and the energy Q2 after the water flows out. The sum of the energy Q5 carried, that is, Q1+Q2=Q3+Q4+Q5. In a single water production, it can usually be considered that Q1 is constant, Q3 is constant, and Q5 has a certain influence but not much, and can also be considered constant. The main influencing fac...

Embodiment 2

[0073] This embodiment further limits the manner of obtaining the first relational expression.

[0074] Optionally, the first relational expression may be a linear relational expression; when the first relational expression is a linear relational expression, the first relational expression may be obtained in the following manner:

[0075] Optionally, as in figure 2 As shown, obtaining the first relational expression between the working current of the booster pump and the pressure of the pressure barrel may include S41-S44:

[0076] S41. When starting water production through the water purifier including the high-pressure switch in advance, obtain the first pressure P1 of the high-pressure switch and the first operating current I1 of the booster pump, and use the first pressure P1 and the first operating current I1 as the first A set of data; among them, the pressure of the high pressure switch is equal to the pressure of the pressure barrel.

[0077] In the embodiment of th...

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Abstract

The embodiment of the invention discloses a control method for a booster pump of a water purifier. The water purifier comprises the booster pump and a pressure barrel. The method comprises the steps of acquiring a first relation between a working current of the booster pump and pressure of the pressure barrel; and controlling the starting or stopping of the booster pump according to a current I ofthe booster pump in the water making process, the first relation and a preset pressure barrel pressure set value. According to the scheme, frequent starting of the water purifier is avoided, and themachine quality and the customer experience are improved.

Description

technical field [0001] Embodiments of the present invention relate to water treatment technology, in particular to a method for controlling a booster pump of a water purifier. Background technique [0002] Present water purifiers generally start water production or stop water production by turning on and off the high pressure switch. When the user starts to use water, the pure water in the pressure tank and the freshly prepared pure water are discharged from the pure water port at the same time, and the pressure of the pressure tank gradually decreases during the water discharge process in the pressure tank, when the user stops using water and the pressure tank When the pressure of the pressure decreases to lower than the low pressure Ps of the high pressure switch, the booster pump is started, the prepared pure water enters the pressure tank, and the pressure in the pressure tank begins to increase. When the pressure in the pressure tank increases to be higher than the high...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B49/06
CPCF04B49/06
Inventor 王旭宁唐拥华
Owner HANGZHOU JIUYANG WATER PURIFICATION SYST
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