Exhaust steam direct-absorption type lithium bromide heat pump system

A heat pump system and absorption technology, applied in the field of lithium bromide absorption heat pump systems, can solve the problems of affecting system performance, increasing system investment and operating costs, reducing the quality of low-temperature heat sources, etc., to simplify the heat pump system, reduce irreversible losses, and reduce operation. cost effect

Active Publication Date: 2013-03-06
XI AN JIAOTONG UNIV
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Problems solved by technology

This solution increases system investment and operating costs, and reduces the quality of low-temperature heat sources, affecting system performance

Method used

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  • Exhaust steam direct-absorption type lithium bromide heat pump system

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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0017] see figure 1 , the present invention includes an absorber 1 externally connected with a low-temperature exhaust gas pipeline, the gas outlet of the absorber 1 communicates with a non-condensable gas pipeline provided with a vacuum pump 7, and the liquid outlet of the absorber 1 passes through the solution on the dilute solution pipeline in sequence The pump 5 and the solution heat exchanger 4 are in communication with the generator 2 provided with a condenser 3; the generator 2 is connected with a heating pipeline externally connected to driving steam, and the heating pipeline heats the solution in the generator 2 and then outputs The end is connected to drive the steam drainage pipeline; the concentrated solution formed in the generator 2 after being heated by the heating pipeline is connected to the other inlet of the solution heat exchanger 4 throug...

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Abstract

The invention provides an exhaust steam direct-absorption type lithium bromide heat pump system which comprises an absorber, wherein a low-temperature exhaust steam pipeline is externally connected to the absorber; a liquid outlet of the absorber is communicated with a generator which is internally provided with a condenser through a dilute solution pipeline and then is connected with a liquid inlet through a concentration solution pipeline; a heating pipeline is connected to the generator; the heating pipeline is outputted through the generator and a steam-driving draining pipeline; a heat network pipeline is connected to the absorber, sequentially passes through the absorber and a heat exchange tube in the condenser of the generator and then is outputted; and a liquid outlet of the condenser is communicated with a steam condensation water pipeline for outputting exhaust steam and draining. According to the exhaust steam direct-absorption type lithium bromide heat pump system disclosed by the invention, two links of heat exchange of the exhaust steam and circulating water and heat release of the circulating water in an evaporator in a heat pump are omitted, so that the heat pump system is greatly simplified and the system investment is reduced. Meanwhile, the pulsation of the circulating water is saved and the operation cost is reduced. In addition, two intermediate heat exchange processes are omitted, so that the irreversible loss of the system is reduced and the performances of the system are greatly improved.

Description

technical field [0001] The invention relates to a lithium bromide absorption heat pump system, in particular to a exhaust steam direct absorption lithium bromide heat pump system. Background technique [0002] Low-temperature waste steam is a common waste heat resource in energy, power, metallurgy and petrochemical industries. How to efficiently recover and utilize this waste heat has important practical significance for improving energy utilization efficiency and reducing environmental pollution. The lithium bromide absorption heat pump consumes high-grade heat energy and recycles low-grade waste heat to meet user requirements, thereby achieving energy saving and emission reduction. [0003] The existing lithium bromide absorption heat pump system adopts the scheme of indirect utilization when recovering the waste heat of low-temperature exhaust steam. The heat of exhaust steam is first transferred to circulating water, and then the heat pump uses circulating water as a low...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B15/06F25B27/02
CPCY02B30/625Y02A30/274
Inventor 王进仕刘继平严俊杰邢秦安种道彤
Owner XI AN JIAOTONG UNIV
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