Hot water single-effect and two-stage compound four-pump lithium bromide-making absorptive water cooling unit

Abstract

The invention relates to a hot water single-effect and two-stage compound four-pump lithium bromide-making absorptive water cooling unit and belongs to the technical field of refrigerating equipment.The hot water single-effect and two-stage compound four-pump lithium bromide-making absorptive water cooling unit comprises a high pressure generator (9), a condenser (7), a low pressure generator (4), a high pressure absorber (6), a low pressure absorber (12), an evaporator (11), a first heat exchanger (6), a second heat exchanger (2), a high pressure generating pump (1), an absorbing pump (3) and a coolant pump (13). The hot water single-effect and two-stage compound four-pump lithium bromide-making absorptive water cooling unit provided by the invention is characterized by also comprising athird heat exchanger (15), a single-effect generator (16) and a single-effect generating pump (17). The inner part of the unit is divided into three parts. Hot water connected in series enters the single-effect generator first, and then enters the low pressure generator and the high pressure generator, and four shield pumps are used. According to the unit, in the condition that the temperature ofhot water at the inlet is relatively high, the temperature of the hot water at the inlet can be reduced relatively low, and the unit has a relatively high refrigerating performance coefficient.

Description

technical field [0001] The invention discloses a hot water single-effect and two-stage composite four-pump lithium bromide absorption chiller, which belongs to the technical field of refrigeration equipment. Background technique [0002] The previous hot water single-effect lithium bromide absorption chiller (hereinafter referred to as hot water single-effect bromine chiller) adopts single-effect generation and single-effect absorption refrigeration workflow, and its advantages are: the refrigeration performance coefficient COP is relatively high (usually greater than 0.7) . The disadvantage is: the temperature of the hot water at the outlet is still relatively high (usually lower than 68°C), and the hot water at the outlet takes away a lot of heat, and the heat of the hot water is not fully utilized. [0003] In the past, the hot water two-stage lithium bromide absorption chiller (hereinafter referred to as the hot water two-stage bromine chiller) adopted two-stage generat...

AI Technical Summary

Problems solved by technology

The disadvantage is: the temperature of the hot water at the outlet is still relatively high (usually lower than 68°C), the hot water at the outlet takes away a lot of heat, and the heat of the hot water is not fully utilized

The disadvantage is: even under the condition of relatively high temperature of imported hot water, the refrigeration coefficient is relatively low (usually lower than 0.45), and the high-grade heat in the high-temperature section of hot water has not been effectively utilized accordingly

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