Compound heat pump with steam type injection/lithium bromide absorption

Abstract

The invention provides a compound heat pump with steam type injection / lithium bromide absorption. The compound heat pump with the steam type injection / lithium bromide absorption comprises an evaporator, wherein the evaporator is externally connected with a low temperature heat source pipeline; the evaporator is arranged in the interior of an absorber; a liquid outlet of the absorber is connected with a generator in which a condenser is arranged through a dilute solution pipeline, and then communicated with a first liquid inlet of the absorber through a concentrated solution pipeline; the absorber is connected with a heat net pipeline; the heat net pipeline passes through the absorber and the condenser in order, and then is output to a user supplied with heat by a heat net; a coolant outlet of the condenser is connected to a first coolant inlet of the evaporator through a pipeline; a steam outlet of the generator is communicated with a steam injector externally connected with a high pressure steam incoming pipeline through an injected steam pipeline; and an outlet of the steam injector is output through by a motive steam pipeline, a drain pipeline on the bottom part of the generator and a motive steam drain pipeline. With the adoption of the compound heat pump provided by the invention, the safe stable operation of a system can be realized; the steam energy is utilized efficiently; and the effect of energy conservation and emission reduction is obvious.

Description

technical field [0001] The invention relates to a composite heat pump, in particular to a steam type injection / lithium bromide absorption composite heat pump. Background technique [0002] The steam lithium bromide absorption heat pump uses steam as the heat source, and utilizes the characteristics that the lithium bromide solution can precipitate water vapor under certain conditions, and can strongly absorb water vapor under another condition to supply heat to the outside. Due to the characteristics of the lithium bromide absorption heat pump, when the steam pressure is higher than the required driving pressure, the heat supply coefficient is basically unchanged because the heat supply coefficient is not sensitive to the pressure change of the driving steam; If the value is too high, the generator will have problems such as scaling and corrosion, which will affect the safe and stable operation of the lithium bromide absorption heat pump. Contents of the invention [0003...

AI Technical Summary

Problems solved by technology

Due to the characteristics of the lithium bromide absorption heat pump, when the steam pressure is higher than the required driving pressure, the heat supply coefficient is basically unchanged because the heat supply coefficient is not sensitive to the pressure change of the driving steam; If the temperature is too high, the generator will have problems such as scaling and corrosion, which will affect the safe and stable operation of the lithium bromide absorption heat pump.

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