Steam type first-kind lithium bromide absorption type heat pump unit with refrigerating function

Abstract

The invention relates to a steam type first-kind lithium bromide absorption type heat pump unit with a refrigerating function. The steam type first-kind lithium bromide absorption type heat pump unit comprises a steam generator, a condenser, an evaporator, an absorber, a solution heat exchanger, a solution pump and a refrigerant pump. A hot water pipeline and a waste heat water pipeline are correspondingly connected with a cold water pipeline and a cooling water pipeline in parallel. During heat supply, waste heat water flows through an evaporator heat transferring pipe, and cold water flows through the evaporator heat transferring pipe during refrigerating. During heat supply, hot water flows through an absorber heat transferring pipe and a condenser heat transferring pipe, and during refrigerating, cooling water flows through the absorber heat transferring pipe and the condenser heat transferring pipe. A cooling water bypass pipeline is additionally arranged between a pipeline getting out of the absorber and getting into the condenser and a main pipeline getting out of the condenser, and is provided with a cooling water bypass valve. The problem about flowing power of a concentrated solution of the generator when the heat supply work condition and the refrigerating work condition run on the same unit is solved, and the heat pump unit can supply heat and can also conduct refrigeration.

Description

technical field [0001] The invention relates to a first-type lithium bromide absorption heat pump unit, in particular to a first-type lithium bromide absorption heat pump unit with refrigeration function. Background technique [0002] The first type of steam type lithium bromide absorption heat pump unit such as figure 1 As shown, it consists of steam generator 1, condenser 2, evaporator 4, absorber 5, solution heat exchanger 3, solution pump 6, refrigerant pump 7, control system (not shown in the figure) and the components connected Composed of pipelines and valves. When the unit is running, the refrigerant water is pressurized by the refrigerant pump 7 to spray down on the top of the evaporator 4, absorbs the heat of the low-temperature residual hot water flowing through the heat transfer tube of the evaporator 4, enters the absorber 5 after being vaporized, and is absorbed by the lithium bromide in it. The concentrated solution absorbs and releases heat to heat the medi...

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