Lithium Bromide Absorption Heat Exchange System with Supplementary Combustion for Simultaneous Heat Supply by Two Channels of Water

Abstract

The invention relates to a supplementary-fired lithium bromide absorption type heat exchange system with two routes of water simultaneously supplying heat, which belongs to the technical field of air-conditioning equipment. The supplementary-fired lithium bromide absorption type heat exchange system comprises a primary network hot water pipeline system (1), a first-route secondary network hot water pipeline system (2), a second-route secondary network hot water pipeline system (3), a first heat exchanger (4), a second heat exchanger (5), a hot water type lithium bromide absorption type unit (6) and a direct-fired lithium bromide absorption type unit (7); the primary network hot water flowing out of the primary network hot water pipeline system (1) sequentially enters a generator (604) of the hot water type lithium bromide absorption type unit (6), the first heat exchanger (4) and the second heat exchanger (5) and finally flows out via the primary network hot water pipeline system (1); the hot return water flowing out of the first-route secondary network hot water pipeline system (2) flows out via the first heat exchanger (4) and then the first-route secondary network hot water pipeline system (2). While decreasing the temperature of primary network hot return water, the supplementary-fired lithium bromide absorption type heat exchange system also can bear the peak heating load of a centralized heating system.

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 primary network hot water is heated at the heat source, it is sent to each heat user through the heating pipe network. Heating and heating are returned to the heat source through the heating pipe network. [0003] Common heat exchangers used at various heat users such as figure 1 As shown (the water-water heat exchanger is shown in the figure), the hot water from the primary network and the hot water from the secondary network are exchanged through heat exchange tubes (shell and tube heat exchanger) or heat exchange surface (plate heat exchanger) , transfer the heat from the hot water in the primary network to the hot water in the secondary network, the temperature of the hot water in the primary network decreases, and the tempe...

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