Digital integrated intelligent control system of central air conditioner and adjusting method thereof

Abstract

The invention discloses a digital integrated intelligent control system of a central air conditioner and an adjusting method thereof. The invention has the key technology that: an intelligent working condition operation control processing system is established, timely dynamic water supply temperature of the air-conditioning system is accurately calculated, and the intelligent working condition operation control processing system consists of three parts, namely a fan coil working condition acquisition processing module, an indoor water supply temperature verification module and a simulating operation correcting power supply temperature module. An air-conditioning host performs refrigeration according to the dynamic practical air-conditioning requirement under the control of the intelligentworking condition operation control processing system, meanwhile, an economic operating condition performance curve of the air-conditioning host is adapted, the consumption of the air-conditioning host is reduced, and the requirement of the indoor air-conditioning effect is timely met. By an operation margin adjusting method of demanded cold quantity and energy efficiency established according toworking condition signals and energy efficiency assessment signals of the air-conditioning host, the energy efficiency of the air-conditioning host can be continually adjusted, the low working condition operation of the air-conditioning host is relatively reduced, and the energy used by the air-conditioning host is correspondingly saved.

Description

technical field [0001] The invention relates to a central air-conditioning digital integrated intelligent control system and an adjusting method thereof, belonging to the field of air-conditioning energy saving. Background technique [0002] The existing central air-conditioning control device, in terms of system control, ultimately has only two methods of changing water temperature and changing water flow. From the perspective of terminal air conditioner control, there are only three aspects: variable air volume, variable water volume (variable water flow), and variable water temperature. On the basis of technology, there are building control methods and industrial control methods. [0003] The technology of changing water flow has evolved a lot, and it is mainly a variety of energy-saving companies. In terms of control technology, it is mainly based on DDC, DCS, PLC, and MES control technology. For reference, take the temperature of supply and return water, the temperatu...

AI Technical Summary

Problems solved by technology

Some fuzzy methods based on variable water volume and machine room data analysis cannot adapt to the reasonable energy-saving application of various equipment in the air-conditioning system in actual control. Only products with variable water flow and variable water temperature combined with control can be more reasonably applicable to energy-saving air-conditioning systems.

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