Multi-water-pump automatic control method of central air conditioner energy-saving control system

Abstract

The invention discloses a multi-water-pump automatic control method of a central air conditioner energy-saving control system. The method comprises the steps that all states of water pumps are monitored, operating time real-time accumulation is updated and stored in real time, the water pumps capable of operating are sorted according to operating time real-time accumulation, and the water pump shortest in operating time is preferentially started according to the sequence till the number of the water pumps required by the system is met; and when the feedback state of the water pump shortest in operating time is any one of a manual control state, a failure state, a local control state, a power access failure state and a maintenance state, the operating state of the water pump is automatically displayed, an alarm is output, sorting is carried out again, and the water pumps are started. According to the method, multiple system states except for water pump failures are considered, operating of the water pumps is automatically stopped and restored to be started according to the monitoring states of the water pumps so as to deal with the operating conditions of the water pumps more comprehensively, the unattended aim of a machine room is achieved better, and normal operating of a central air conditioner is protected.

Description

technical field [0001] The invention relates to an automatic control method for multiple water pumps in a central air-conditioning energy-saving control system, belonging to the technical field of air-conditioning control. Background technique [0002] In the energy-saving control system of the central air-conditioning system, the automatic optimal operation control of multiple water pumps is the key subsystem. The automatic control system of the air-conditioning system runs in the process of automatic operation, and completes the start and stop of the water pumps according to the system requirements and feedback information. and other commands to realize the automatic control of the system. According to changes in system requirements, the number of motors running is automatically adjusted to achieve optimal operation of the system. [0003] In the application of the existing central air-conditioning system energy-saving control system, by connecting the air conditioner in ...

AI Technical Summary

Problems solved by technology

Since only the failure automatic switching of the water pump is considered, and the simple scheduled time for alternate operation, it will cause a deviation in the running time in certain situations. The pumps that have been maintained are not prioritized, but are operated alternately among all available pumps, and only consider switching the non-failed pumps to alternate operation after a pump failure, without considering the maintenance and local manual control of the pumps In other cases, the service time of the water pump is not well considered, and when the number of water pump failures exceeds the number required by the system, the problem of automatic operation of the water pump after the failure is eliminated

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