Control method of ice storage air-conditioning system and ice storage air-conditioning system

Abstract

The invention discloses a control method of an ice storage air-conditioning system and the ice storage air-conditioning system. The method includes the steps that a duplex mode main chiller provides a secondary refrigerant solution at a first preset temperature for an ice storage tank through a first water pipe under an ice-making working condition; after ice making, the temperature of the secondary refrigerant solution is increased to a second preset temperature, and the ice storage tank outputs a secondary refrigerant solution at the second preset temperature through a second water pipe, a heat exchanger is installed on the second water pipe and cold water circularly flows between the heat exchanger and an air-conditioning terminal; and heat exchange is carried out on the secondary refrigerant solution at the second preset temperature and the cold water through the heat exchanger, and cold water at the temperature needed by the air-conditioning terminal is obtained. The ice storage air-conditioning system integrates cold storage and cold supply, the duplex mode main chiller supplies cold on the premise of making ice, the refrigerating capacity of the main chiller is effectively used for meeting the requirement of the air-conditioning terminal, and therefore the energy utilization rate of the system is increased, and the problem of energy waste in a traditional control method is solved.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a control method for an ice storage air conditioning system and the ice storage air conditioning system. Background technique [0002] In the traditional ice-storage air-conditioning system, the dual-working condition main engine does not directly supply cooling under the ice-making condition, and does not produce ice under the cooling condition. [0003] figure 1 It is the working schematic diagram of the dual-working condition main engine in the prior art under the ice-making working condition, as shown in figure 1 As shown, the host provides -5°C ethylene glycol solution, ice is made in the ice storage tank for cold storage, and the temperature of the ethylene glycol solution is raised to 0°C and returned to the host. [0004] figure 2 It is the working schematic diagram of the dual-working condition main engine in the prior art under the cooling condition, as sho...

AI Technical Summary

Problems solved by technology

[0008] Embodiments of the present invention provide a control method for an ice-storage air-conditioning system and an ice-storage air-conditioning system, so as to at least solve the problem of energy waste in the traditional ice-storage air-conditioning system where ice is first produced and then melted for cooling at the same time.

Images