Steam double-effect lithium bromide absorption type water chilling unit capable of achieving single-effect heat supply

Abstract

The invention relates to a steam double-effect lithium bromide absorption type water chilling unit capable of achieving single-effect heat supply. Two refrigerant steam pipes are arranged on an uppersteam phase area of a high-pressure generator, one refrigerant steam pipe is a refrigerant steam inlet low-pressure generator tube pass pipeline, the other refrigerant steam pipe is a refrigerant steam inlet low-pressure generator shell steam phase area pipeline or refrigerant steam inlet condenser shell pipeline, and a refrigerant steam switching valve is arranged on the refrigerant steam inlet low-pressure generator shell steam phase area pipeline or refrigerant steam inlet condenser shell pipeline. Through valve switching and low-pressure solution pump starting and stopping, when the refrigeration work condition runs in summer, running is carried out according to the solution parallel-connection circulation process of the steam double-effect lithium bromide absorption type water chilling unit; and when the heating work condition runs in winter, running is achieved according to the single-effect circulating process of a steam type first-kind lithium bromide absorption type heat pumpunit. Unit operation is simple, the performance coefficient is high, one machine achieves two purposes, the equipment initial cost and the management cost are reduced, the equipment occupied space issaved, and the annual usage rate of equipment is improved.

Description

technical field [0001] The invention relates to a steam double-effect lithium bromide absorption chiller capable of single-effect heat supply, belonging to the technical field of refrigeration equipment. Background technique [0002] In the production process and daily life, some occasions require cooling in summer and heating in winter. In areas where there are both steam heat sources and low-temperature waste heat, in order to meet the cooling needs in summer, a steam double-effect lithium bromide absorption chiller is built to provide cooling for users. , in order to meet the winter heat supply and save steam consumption, it is necessary to invest in the first type of lithium bromide absorption heat pump unit to provide heat for users. In this way, two types of equipment need to be invested, which increases the initial equipment investment and equipment management costs invisibly. In this case, in order to reduce the initial investment of equipment and reduce operation an...

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