Heat multiplication type hot site heat exchanger unit

Abstract

The invention discloses a heat multiplication type hot site heat exchanger unit belonging to the field of heat supply and heating. The invention has the technical characteristics that primary side heating medium is firstly connected with an absorption type heat pump unit to serve as a drive source on the basis that the existing intensive heat supply primary side heating medium is converted into secondary side hot water by a heat exchanger, and heat is obtained from the environmental heat source by the absorption type heat pump unit so as to realize the purpose of secondary side heat multiplication. The invention can directly utilize primary side hot water or steam as the heating medium to drive the absorption type heat pump unit to obtain heat from ambient air or water source environment to realize secondary side heat multiplication heat exchange; according to working condition variation, the outlet heating medium of the absorption type heat pump unit can be used to further heat the secondary side hot water flowing out of the absorption type heat pump unit. On the premise of ensuring the using function of the secondary side, the invention reduces primary network supply heat and heating medium flow of unit heating area so as to reduce the size of a heat supply network pipeline and lower primary energy consumption and transportation and distribution energy consumption thereof, so that the invention has obvious energy saving effect.

Description

technical field [0001] The invention belongs to the field of heating and heating, and is suitable for central heating networks, boiler rooms or heat exchange stations of other heating systems with high-temperature heat sources such as steam and hot water. Background technique [0002] With the improvement of the living standard of Chinese residents, people's demand for domestic hot water and heating hot water is also increasing. Statistics show that the proportion of building energy consumption in my country's total social energy consumption is between 22% and 25%, of which about 40% is used for building heating. The energy consumption of central heating by heating network or central heating in residential areas in northern urban areas accounts for about 60% of building heating energy consumption. At present, many newly built communities in the Yangtze River Basin have also begun to adopt central heating, and many cities are also planning large-scale centralized supply. hot...

AI Technical Summary

Problems solved by technology

The current central heating usually uses boilers to directly burn low-temperature hot water (60~90°C) to directly supply users for heating, or use figure 1 The heating station shown converts 130°C hot water (primary side hot water) in the central heating network into low-temperature hot water (secondary side hot water) and then supplies it to users for heating. Although the total amount of heat before and after heat exchange has not changed, But the loss of usable energy is very large

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