A full heat recovery integrated gas heat pump heating unit and its application

Abstract

The invention belongs to the field of gas-driven air source heat pump heat supply, and in particular relates to a full heat recovery type integrated gas heat pump heat supply unit and its application. Including: internal combustion engine, transmission coupling, compressor, condenser, evaporator, flue gas waste heat recovery device, flue gas and air mixing chamber, etc.; the internal combustion engine, transmission coupling, compressor, and condenser are connected in sequence, and The evaporator is connected back to the compressor; the flue gas waste heat recovery device is arranged on the flue gas pipeline of the internal combustion engine, and the flue gas and air mixing chamber communicates with the evaporator; the heating water pipeline is divided into two paths, and the first path is sequentially connected with the condenser 1. Heat exchange is performed between the flue gas waste heat recovery devices, and after heat exchange between the second road and the internal combustion engine, it merges with the first road to supply high-temperature water to the user. The present invention abandons the limitation of gas-fired heat pump research in pursuit of comprehensive energy efficiency ratio of multi-purpose and multi-working conditions, no longer considers summer refrigeration performance coefficient and cold-heat conversion, and successfully enables the existing GHP technology to be used in the heating system with radiator as the end.

Description

technical field [0001] The invention belongs to the field of gas-driven air source heat pump heat supply, and in particular relates to a full heat recovery type integrated gas heat pump heat supply unit and its application. Background technique [0002] The information disclosed in the Background of the Invention is only intended to increase the understanding of the general background of the invention, and it is not necessarily to be taken as an acknowledgment or any form of suggestion that the information constitutes the prior art that is already known to those skilled in the art. [0003] During the implementation of clean energy transformation in recent years, most of them use gas to replace coal and electricity to replace coal. Both gas and electricity belong to high-grade energy. The energy is directly burned for heating demand with low-grade requirements, resulting in loss of energy intensity and waste of energy grade. [0004] At present, a large number of air source...

AI Technical Summary

Problems solved by technology

However, the use of natural gas still has the problem of flue gas emission, which requires a certain height of the chimney and a certain concentration of nitrogen oxides

Due to the complex structure of the existing gas-fired air source heat pump, external heat exchange equipment and smoke exhaust devices and other accessories are required, and large-scale units also need to be assembled on site

The inventor’s previous application 201610203393.5 disclosed a gas-driven air source heat pump heating unit for central heating systems; however, during the trial production of the prototype, it was found that its efficiency was not ideal, and the defrosting control problem was not very good to solve

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