Supplementary combustion lithium bromide absorption heat exchange system

Abstract

The invention relates to a supplementary combustion type lithium bromide absorption heat exchange system, comprising a primary network hot water pipeline system (1), a secondary network hot water pipeline system (2), a heat exchanger (3), and a hot water type lithium bromide Absorption unit (4) and direct-fired lithium bromide absorption unit (5), the primary network hot water from the primary network hot water pipeline system (1) first enters the generator of the hot water lithium bromide absorption unit (4) ( 404), then enter the heat exchanger (3), and then enter the evaporator (501) of the direct-fired lithium bromide absorption unit (5); the hot water return water from the secondary network hot water pipeline system (2) is divided into Two paths, one path flows through the evaporator (401) of the hot-water lithium bromide absorption unit (4) first, and then enters the heat exchanger (3), and the other path flows through the absorber in parallel or in any order in series or series-parallel (402), condenser (403) and absorber (502), condenser (503). This system can achieve the purpose of increasing the hot water in the primary network to effectively use the temperature difference and bear the peak load of the heating pipe network.

Description

technical field [0001] The invention relates to a lithium bromide absorption heat exchange system. It belongs to the technical field of air conditioning equipment. Background technique [0002] In the conventional central heating system, after the hot water of the primary network is heated at the heat source, it is sent to each heat user through the heating pipe network, and after the heat exchange and cooling of the hot water of the secondary network at each heat user place through the heat exchanger, it is then Return to the heat source through the heating pipe network to heat up. [0003] Common heat exchangers used at various heat users such as figure 1 As shown (water-water heat exchanger in the figure), the hot water of the primary net and the hot water of the secondary net are exchanged through heat exchange tubes (shell-and-tube heat exchangers) or heat exchange surfaces (plate heat exchangers) , the heat in the primary network hot water is transferred to the seco...

AI Technical Summary

Problems solved by technology

[0005] In addition, because the central heating system needs to meet the heating demand in the coldest weather, the heating pipe network is designed and constructed according to the maximum heating load, but most of the time in the actual operation of the heating system is Operate under part of the heating load, which causes a waste of heating capacity of the heating pipe network

Images