Lithium bromide absorption type combined heat pump
An absorption type, lithium bromide technology, applied in heat pumps, adsorption machines, refrigeration and liquefaction, etc., can solve the problems of increasing operation and management costs, increasing the occupied area of the machine room, and the inoperability of second-class heat pumps, etc.
Active Publication Date: 2016-05-11
希望深蓝空调制造有限公司
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Problems solved by technology
[0023] Due to the characteristics of Type I and Type II heat pumps, Type II heat pumps can be used for the application of recycling medium-grade waste heat without consuming high-grade heat energy. However, due to the high temperature of cooling water in summer, when the temperature of waste heat is low, Type II heat pumps can be used Heat pump not working in summer
For industrial application projects that require year-round operation and recovery of medium-grade waste heat, in order to improve system efficiency and reduce operating costs, it is necessary to set up Class I and Class II heat pumps respectively, and operate Class I heat pumps in summer and Class II heat pumps in winter. Increased equipment investment, increased the occupied area of the computer room, and increased the cost of operation and management
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[0044] figure 1 and figure 2 Shown is the working principle of the lithium bromide absorption type I and II heat pumps in the prior art mentioned in the background art. exist figure 1 The medium is driven by high-grade energy natural gas, and it can also be driven by hot water or steam. Specifically, it heats the lithium bromide dilute solution in the first-class generator 11, separates the refrigerant steam and enters the condenser 2, and is condensed into a liquid state by cooling water. And release steam condensation heat to the cooling water; Since the pressure of the condenser is higher than the evaporation pressure, the liquid refrigerant is decompressed into low-pressure saturated refrigerant water through the U-shaped throttling device 61, enters the evaporator 3, and after absorbing the heat of the waste hot water, Boiling and evaporating into low-pressure steam; the low-pressure steam enters the absorber 4 through the liquid baffle, is absorbed by the concentrated...
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The invention relates to a lithium bromide absorption type combined heat pump which comprises an evaporator, an absorber, a condenser, a heat exchanger, a cooling tower and one or two generators. In one heat pump unit, the operation function of a lithium bromide absorption type first-type heat pump or the operation function of a lithium bromide absorption type second-type heat pump can be achieved only by switching a valve, and therefore system efficiency is improved, and operation cost is lowered. The evaporator, the absorber, the condenser and the heat exchanger of the combined heat pump are used in common when a first-type heat pump mode or a second-type heat pump mode is operated. The arrangement positions of the generators, the evaporator, the absorber, the condenser and the heat exchanger can be freely set. When the second-type heat pump is operated, waste hot water can pass through the generators and the evaporator in a series or parallel mode, and in the series mode, the waste hot water can reach the evaporator from the generators and also can reach the generators from the evaporator.
Description
technical field [0001] The invention relates to a combined heat pump device for realizing the operation of a lithium bromide absorption type I heat pump or a lithium bromide absorption type II heat pump by switching a valve. Background technique [0002] When the lithium bromide absorption unit is in cooling operation, the cooling water outlet temperature of the absorber and condenser is usually 30-50°C higher than the outlet water temperature of the evaporator. The absorption heat pump uses the principle of lithium bromide absorption refrigeration and uses the absorption refrigeration cycle The cooling heat is used for heating by the heat pump device. Conventional lithium bromide absorption heat pumps are divided into Class I heat pumps and Class II heat pumps. The first type of heat pump is driven by high-grade heat energy, using complete refrigeration and reverse operation, and the absorber and condenser are simultaneously heated; the second type of heat pump does not us...
Claims
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IPC IPC(8): F25B15/06F25B30/06
CPCF25B15/06F25B30/06Y02A30/27Y02B30/62
Inventor 熊自平
Owner 希望深蓝空调制造有限公司