Energy-saving device for water pump system of central air conditioner

Abstract

The invention discloses an energy-saving device for a water pump system of a central air conditioner. The device comprises a water pump body, wherein a frequency conversion controller is installed in the water pump body, the output end of the frequency conversion controller is electrically connected with the input end of a single chip microcomputer, the output end of the single chip microcomputer is electrically connected with the input end of a signal transmission module, the output end of the signal transmission module is electrically connected with the input end of the water pump power regulation and control module, and the output end of the water pump power regulation and control module is electrically connected with the input end of the water pump body. According to the invention, by a method of matching frequency conversion and energy saving with soft start, a closed frequency conversion control technology is adopted, the energy consumption condition and the power saving quantity are accurately mastered, the working state of a frequency converter and system operation parameters are monitored in real time, the overproof alarm of current and voltage and the protection functions of undervoltage, short circuit and the like are realized, and pump system equipment vibration, bearing temperature and the like are monitored in real time; and fault diagnosis is carried out to ensure safe operation of the system.

Description

technical field [0001] The invention relates to the technical field of air-conditioning water pumps, in particular to an energy-saving device for a central air-conditioning water pump system. Background technique [0002] A pump is a machine that transports or pressurizes a liquid. It transmits the mechanical energy of the prime mover or other external energy to the liquid to increase the energy of the liquid. It is mainly used to transport liquids including water, oil, acid and alkali, emulsion, suspoemulsion and liquid metal. [0003] Due to the widespread use of water pumps, water pumps are the largest energy consumers in my country. The total annual power consumption reaches 20% or more of the total annual power consumption, and it also shows a sharp increase every year. From the point of view of the design level of water pumps, the design level of water pumps in my country is very close to the advanced level of foreign developed countries, but there is still a big gap ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an energy-saving device for a central air-conditioning water pump system to solve the problem that the current water pump energy consumption is relatively high and it is easy to cause a large amount of waste of power resources in the above background technology

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