Lithium bromide absorption type water chilling unit for direct cooling type cold-blast air evaporator

Abstract

The invention discloses a lithium bromide absorption type water chilling unit for a direct cooling type cold-blast air evaporator, which comprises a lithium bromide absorption type water chilling unit and a refrigerant circulator and a lithium bromide solution circulator thereof, wherein the lithium bromide absorption water chilling unit comprises a condenser 1, a generator 2, a direct cooling type cold-blast air evaporator 3, an absorber 4, a solution heat exchanger 5, a solution pump 6 and a refrigerant pump 7, and the water chilling unit is directly connected with an air conditioner air system. The lithium bromide absorption water chilling unit is characterized in that the direct cooling type cold-blast air evaporator 3 is a vacuum closed cylinder consisting of air-cooled heat transfer pipe sets 9, and air is cooled in an air-cooled manner. By adopting the invention, the contradiction between unit performance and heat source grade in the traditional lithium bromide absorption water chilling technology is eliminated, the unit performance parameter is improved, and advantages are created for continuous application of solar refrigerating air conditioners and comprehensive utilization of low-temperature waste heat and exhaust heat.

Description

technical field [0001] The invention relates to a direct-cooling cold air evaporator lithium bromide absorption chiller, more specifically, relates to a lithium bromide absorption chiller which adopts an evaporator to directly cool air. Background technique [0002] Lithium bromide absorption refrigerators use steam, hot water, heat generated by direct combustion of fuel oil / gas or other waste heat as heat sources to achieve refrigeration. Since CFCs and HCFCs refrigerants have a destructive effect on the atmospheric ozone layer, and HFCs refrigerants have a greenhouse effect. Under the current external environmental conditions of tight power supply and climate change, the lithium bromide absorption refrigerator has high promotion value. my country has become the largest producer of absorption refrigerators in the world. The development direction of lithium bromide absorption refrigerators is mainly to improve efficiency, popularize and apply them to cogeneration systems of ...

AI Technical Summary

Problems solved by technology

However, the COP value of the two-stage lithium bromide absorption refrigeration system is lower, only about 0.3 to 0.4, the cooling water consumption is about twice that of the single-effect lithium bromide absorption refrigeration unit, and the initial investment is relatively large

Images