A central cooling system and its load distribution control method for parent-controlled lithium bromide

Abstract

The invention discloses a lithium bromide centralized cooling system with mother tubes and a load distribution control method thereof, and belongs to the technical field of lithium bromide cooling systems. A central cooling system for lithium bromide controlled by the mother tube of the present invention includes a lithium bromide solution circulation system and a refrigerant water circulation system. Lithium bromide solution circulation system includes dilute solution high-pressure heat main pipe, high-low pressure generator condenser assembly, concentrated solution low-pressure heat main pipe, absorber evaporator assembly, dilute solution non-pressure cold main pipe, solution pump, dilute solution high-pressure cold main pipe . The refrigerant water circulation system includes a high-pressure refrigerant steam main pipe, a low-pressure condenser, a low-low pressure condenser, and a refrigerant jelly pipe. The invention utilizes the parent tube structure to effectively improve the anti-disturbance ability of the cooling system, expand the operating range of the refrigeration system, facilitate expansion, repair and maintenance, and effectively improve the economy and energy utilization efficiency of the centralized lithium bromide cooling system of the parent tube. The scheme is simple and practical, practical and convenient for production and manufacture.

Description

technical field [0001] The invention relates to a centralized lithium bromide cooling system with mother tubes and a load distribution control method thereof, belonging to the technical field of lithium bromide cooling systems. Background technique [0002] Lithium bromide absorption refrigeration unit is mainly composed of generator, condenser, evaporator, absorber, circulation pump and other parts. When the lithium bromide aqueous solution in the generator is heated by the heat source, the concentration of the solution increases continuously with the continuous vaporization of the water and enters the absorber; while the vaporized water vapor enters the condenser, is cooled by the open circulating water and condenses, and passes through the throttling The flow valve enters the evaporator, rapidly expands and vaporizes, and at the same time absorbs a large amount of heat that needs to be cooled to produce cold water; the lithium bromide concentrated solution in the absorber...

AI Technical Summary

Problems solved by technology

[0003] However, the traditional lithium bromide absorption refrigeration unit is a unit structure, and when it is applied to the working condition with variable load, it has poor anti-disturbance ability, low operating efficiency, narrow operating condition range, and is not easy to expand, repair and maintain.

[0004] Furthermore, when the traditional unit system central cooling system is applied to the working conditions with variable loads, it is necessary to frequently adjust the operation mode of the unit, and its load distribution mostly depends on manual operation, and the operators often adjust the operation mode based on experience, making the unit system The economy and energy utilization efficiency of the centralized refrigeration station are difficult to achieve optimal conditions

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