Freezing side refrigeration structure, refrigeration system and control method of refrigeration system

Abstract

The invention provides a freezing side refrigeration structure, a refrigeration system and a control method of the refrigeration system, relates to the technical field of refrigeration equipment, and solves the technical problems that when the cold load of a building changes greatly and quickly, addition and subtraction control of a refrigeration system needs reaction time, so that the system runs unstably, and the room temperature fluctuates greatly. According to the freezing side refrigeration structure, a freezing water supply tank is additionally arranged on a freezing water supply main pipeline, a freezing water return tank is additionally arranged on a freezing water return main pipeline, and by combining control of a valve assembly and a water pump assembly, the effects of low temperature and stable cold supply can be achieved by utilizing branch circulation in the starting-up process, when the cold load of the building changes greatly and quickly and and a unit cannot quickly realize addition and subtraction control reaction, the buffer and cold accumulation effects can be achieved, so that stable, efficient and low-temperature cold supply of some buildings with high control requirements is ensured, and the problems of unstable system operation, out-of-control room temperature and the like caused by the fact that factors such as flow and water temperature cannot be quickly controlled during addition and subtraction control of a conventional air conditioning system unit are solved.

Description

technical field [0001] The invention relates to the technical field of refrigeration equipment, in particular to a refrigeration structure on a refrigeration side, a refrigeration system and a control method thereof. Background technique [0002] At present, when the cooling load of the building changes greatly and quickly in the conventional refrigeration system, the control of adding and subtracting units requires reaction time, resulting in large fluctuations in the system’s chilled water supply, return water temperature, and chilled water flow rate for a period of time. Runs erratically, causing fluctuations in room temperature. This obviously cannot satisfy some buildings with higher control requirements. At the same time, conventional cooling systems are designed in a closed way with direct pipeline connections between the freezing side, the cooling side, and the terminal system. The water quality cannot be controlled at any time during the entire operation process, a...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a refrigeration structure, refrigeration system and control method for the refrigeration side, at least to solve the problem in the prior art that when the cooling load of the building changes greatly and quickly, the response time required for the control of adding and subtracting machines in the refrigeration system is required. Technical problems that cause unstable operation of the system and large fluctuations in room temperature

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