Title:
WATER-PRESSURE CONTROL METHOD, SECONDARY WATER SUPPLY SYSTEM, ELECTRONIC DEVICE AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2023/116206
Kind Code:
A1
Abstract:
A water-pressure control method and a secondary water supply system. The water-pressure control method is applied to a secondary water supply system. The secondary water supply system at least includes a water pump (1) and a frequency converter (2), which controls the water pump (1). The water pressure control method includes the following steps: acquiring an initial working frequency of a frequency converter (2) when the pressure of output water is a set pressure (S1); controlling the frequency converter (2) on the basis of the initial working frequency, and making the frequency converter (2) work for a specified time (S2); and after the frequency converter (2) works for the specified time, performing feedback control on the frequency converter (2) by using a frequency which has been subjected to feedback regulation (S3). An early-stage waveform, which has large fluctuations and which is formed by conventional feedback control, in a waveform of the pressure of output water can be skipped, and the point at which the fluctuation amplitude is relatively small is directly taken as a starting point for controlling the waveform, such that an impact on an outer pipe caused by the excessive fluctuation of the water pressure, and the influence thereof on electric appliances of a user can be suppressed to a great extent. Therefore, during secondary water supply, the pressure of output water is kept constant, and the fluctuation of pressure is reduced.
Inventors:
ZOU JUNHUI (CN)
ZHOU MENGXUE (CN)
ZHOU MENGXUE (CN)
Application Number:
PCT/CN2022/128820
Publication Date:
June 29, 2023
Filing Date:
October 31, 2022
Export Citation:
Assignee:
WUXI HUITIAN WATER TECH CO LTD (CN)
International Classes:
G05D16/20; E03B7/07; G05B11/42
Foreign References:
| CN114281119A | 2022-04-05 | |||
| CN110793089A | 2020-02-14 | |||
| CN112051729A | 2020-12-08 | |||
| CN103529695A | 2014-01-22 | |||
| CN106499009A | 2017-03-15 | |||
| JP2010174842A | 2010-08-12 |
Attorney, Agent or Firm:
BEIJING LINGZHUAN IP AGENCY CO., LTD. (CN)
Download PDF:
Previous Patent: ATRIAL SEPTOSTOMY DEVICE
Next Patent: COMPOSITION, PREPARATION METHOD FOR COMPOSITION, AND LIGHT-EMITTING DEVICE
Next Patent: COMPOSITION, PREPARATION METHOD FOR COMPOSITION, AND LIGHT-EMITTING DEVICE