Minitype proton exchange membrane fuel cell combined cooling heating and power supplying system

Abstract

The invention discloses a minitype proton exchange membrane fuel cell combined cooling heating and power supplying system which comprises a proton exchange membrane fuel cell, an inverter, a heat exchanger, a hot water tank, an absorption type refrigerating system and an air inlet processing system, wherein the proton exchange membrane fuel cell is a proton exchange membrane fuel cell stack; the absorption type refrigerating system is a single-effect lithium bromide refrigerator; the circulating cooling water system of the proton exchange membrane fuel cell stack has heat exchange with the heat exchanger; the hot water of the heat exchanger is distributed via the hot water tank; one part of the hot water is fed in the air inlet processing system; one part of the hot water is fed in the single-effect lithium bromide refrigerator; and one part of the hot water is used for domestic hot water. The minitype proton exchange membrane fuel cell combined cooling heating and power supplying system is suitable for being used as the minitype combined cooling heating and power supplying system of small and mini type application occasions similar to apartments, households and the like and further improves the electricity output efficiency of the combined supply system while meeting the demand of multiple functions of a user.

Description

technical field [0001] The invention relates to a combined cooling, heating and power system, in particular to a fuel cell combined cooling, heating and power system. Background technique [0002] The fuel cell-based cogeneration system uses the fuel cell as the drive device to feed hydrogen and air into the anode and cathode of the fuel cell, generate electricity through electrochemical reactions, generate water, and release a large amount of waste heat, which can provide users with electricity, Heating and cooling, with the advantages of high energy utilization efficiency and less emission of polluting gases. There are many types of fuel cells, mainly including solid oxide fuel cells, direct methanol fuel cells, and proton exchange membrane fuel cells. At present, solid oxide fuel cells and direct methanol fuel cells are mostly used as driving devices in fuel cell cogeneration systems. Compared with the traditional drive (gas turbine, internal combustion engine) cogenera...

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Problems solved by technology

[0003] And because the power of the fuel cell cogeneration system is mostly tens of kilowatts or even hundreds of kilowatts, its distribution and application range have certain limitations. Now it is mainly used in shopping malls, conference centers, hospitals and other places. High, such as SOFC up to 850-1000 ℃, too large power scale and too high operating temperature are not suitable for domestic occasions, so the micro fuel cell cooling and heating power system suitable for domestic use is not yet visible

In addition, although combined cooling, heating and power systems mostly use absorption chillers as equipment for recovering waste heat from power generation devices, most traditional power generation devices have large power (such as thermal power plants), and the power of the matching absorption chillers is relatively large , the power scale of the output cooling capacity is also not suitable for domestic occasions

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