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Water supply pump frequency-variable control method and system

A technology of frequency conversion control and water pump, applied in the field of frequency converter, to avoid the increase of cost and fault maintenance points

Inactive Publication Date: 2015-12-09
SHENZHEN INVT ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a water supply pump frequency conversion control method and system to solve the problem in the prior art that an additional water pump controller cooperates with a frequency converter to jointly realize the water supply function

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  • Water supply pump frequency-variable control method and system
  • Water supply pump frequency-variable control method and system

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Embodiment Construction

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0043] The invention provides a water supply pump frequency conversion control method and system to solve the problem in the prior art that an additional water pump controller cooperates with a frequency converter to jointly realize the water supply function.

[0044] Specifically, the frequency conversion control method of the water supply pump, such as figure 1 shown, including:

[0045] S100, receiving a running command, and judging whether the running comma...

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Abstract

The invention discloses a water supply pump frequency-variable control method and system. By controlling a water pump connected with a power supply output end of a frequency converter to conduct normal water supply and conduct increase, decrease, dormancy and dormancy awakening control on the water pump in different judgment processes through the frequency converter when a received running command is effective, the water pump can be controlled without the cooperation with an additional water pump controller, and the problems that in the prior art, due to the fact that the water supply function can be achieved by using the frequency converter and the additional water pump controller in cooperation, cost and failure maintenance points are increased are solved.

Description

technical field [0001] The invention relates to the technical field of frequency converters, in particular to a method and system for frequency conversion control of water supply pumps. Background technique [0002] For locations above the ground, such as office buildings or residential buildings, there is a demand for water supply functions, and tap water is often stored on the ground, which requires the water supply system to pressurize the tap water in the pipeline by controlling the operation of the water pump. The tap water is transported to the upper floors of the building along the installed pipelines, so as to meet the water demand of high-rise users. [0003] The water supply system of modern buildings is generally completed by frequency conversion speed regulation system, which can control the soft start of the water pump, and realize constant pressure water supply through frequency conversion stepless speed regulation, and at the same time, the energy saving effic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03B5/02E03B7/04
Inventor 石超
Owner SHENZHEN INVT ELECTRIC