Header-system lithium bromide centralized cooling system and load distribution control method thereof

Abstract

The invention discloses a header-system lithium bromide centralized cooling system and a load distribution control method thereof, and belongs to the technical field of lithium bromide cooling systems. The header-system lithium bromide centralized cooling system comprises a lithium bromide solution circulating system and a refrigerant water circulating system. The lithium bromide solution circulating system comprises a dilute solution high-pressure hot header pipe, a high-low-pressure generator condenser assembly, a concentrated solution low-pressure hot header pipe, an absorber evaporator assembly, a dilute solution non-pressure cold header pipe, a solution pump and a dilute solution high-pressure cold header pipe. The refrigerant water circulating system comprises a high-pressure refrigerant steam header pipe, a low-pressure condenser, a low-pressure condenser and a refrigerant water header pipe. According to the invention, by means of a header-system structure, the disturbance rejection capacity of the cooling system is effectively improved, the operating condition range of a refrigerating system is expanded, moreover, extension, overhaul and maintenance are facilitated, the economical efficiency and the energy utilization efficiency of the header-system lithium bromide centralized cooling system are effectively increased, and the scheme is simple, practical, feasible and convenient to produce 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

Images