Hybrid type energy supply system coupling natural gas based distributed energy source system with ground source heat pump

Abstract

The invention discloses a hybrid energy supply system coupling a natural gas based distributed energy source system with a ground source heat pump. The hybrid type energy supply system comprises a gas turbine, a lithium bromide absorption unit, an exhaust heat boiler, a first water source heat pump unit, a second water source heat pump unit, a first heat exchanger, a second heat exchanger, a third heat exchanger, an absorption dehydrating device, an underground heat exchanger, a paralleling set, an ice storage device, a first heat storage water tank, a second heat storage water tank, a construction energy consumption monitoring and controlling device and a signal feedback control network. Exhaust heat of the distributed energy source system is utilized sufficiently, and efficiency of a total energy system is further improved. Two energy source technologies of fossil clean energy and renewable energy are comprehensively utilized to couple and integrate, and advantageous complementation of the two energy sources is realized. Compared with an existing hybrid energy supply system, the hybrid energy supply system has the advantages that energy utilization efficiency is greatly improved, huge environmental protection benefit can be created, and practical significance is great.

Description

technical field [0001] The invention relates to the field of energy technology, in particular to a composite energy supply system coupled with a natural gas-based distributed energy system and a ground source heat pump. Background technique [0002] The second-generation energy system characterized by distributed energy systems has gradually become an important development direction of energy technology in the future world. Since distributed energy systems are mostly used in cities, natural gas has become the preferred fuel due to its clean and convenient transportation, so natural gas-based distributed energy systems have received more attention, research and development. [0003] In recent years, my country has begun to adjust its energy strategy and promote the application of renewable energy through various measures. Ground source heat pumps are an important part of renewable energy applications. The energy temperature of ground source heat pumps is relatively stable thr...

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Problems solved by technology

[0008] In order to solve the problems existing in the research and application of the traditional composite energy supply system, the main purpose of the present invention is to propose a composite energy supply system coupled with a natural gas-based distributed energy The simple superposition and complementarity of the two systems cannot make full use of the waste heat of the distributed energy system, resulting in waste of heat, resulting in an unbalanced underground temperature field, inability to efficiently optimize operation within the full range of working conditions, and failure to fully integrate with energy storage devices. The problem of not being able to improve energy utilization efficiency while achieving self-sufficiency in building energy utilization

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