Thermoelectric supply and storage integrated device suitable for remote areas

Abstract

The invention discloses a thermoelectric supply and storage integrated device suitable for remote areas. The device comprises a combiner box, an inverter, a water source heat pump, an air source heatpump, a water pump, a heat exchanger, a balance water tank, a phase change heat storage pool, a storage battery pack and the like; the electric energy source of the device is a PV / T photovoltaic panel; electric energy generated by the photovoltaic panel is transmitted to the inverter through the combiner box; after being subjected to direct-current and alternating-current conversion, the electricenergy is converged into a power grid; a water source of the water source heat pump in the device is water with certain heat in a PV / T system solar water distributing and collecting device, water circulation is achieved by driving the water pump, and the water serves as a carrier to transfer heat; and the air source heat pump is connected with an outdoor unit, sucks in air, obtains heat and then exhausts cold air. The integrated device can effectively integrate power supply, heat supply, energy storage, heat storage subsystems and other decentralized subsystems; and the existing key problems of system planning, system operation, energy comprehensive utilization and the like of a new energy electric heating supply system are solved.

Description

technical field [0001] The invention belongs to the technical field of photovoltaic technology and cogeneration of heat and power, and in particular relates to an integrated heat and electricity supply and storage device suitable for remote areas. Background technique [0002] The energy structure in Southwest China (Lhasa, Shangri-La, Ganzi, Aba, etc.) is characterized by a lack of coal, oil, and gas, but there are abundant hydropower resources and solar energy resources. The gas pipeline of Qinghai Natural Gas will lead to this area. Although gas has less impact on air pollution than coal burning, it is still incomparable compared with clean energy such as hydropower and solar energy. Using natural resources such as solar energy to generate electricity, and then converting the electric energy into thermal energy for heating through heat pumps and other electrothermal conversion devices has become a research hotspot for heating in remote areas. For areas with abundant water...

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Problems solved by technology

[0004] Although PV / T devices can improve the efficiency of photovoltaic power generation and produce some heat at the same time, there are still few specific applications for the cooperation of PV / T with heat pumps, heat storage devices, and power storage devices, most of which are in the experimental research stage, and most Cogeneration systems are distributed new energy devices. Power generation, heat production, electricity storage, and heat storage are carried out separately. The multi-dimensional organic integration of each subsystem has not been realized. Equipment operation and maintenance, management and control are complicated, difficult to promote, and low demonstration

The Chinese patent with the publication number CN109004686A proposes a multi-mode cooling, heating and power cogeneration micro-grid system considering ice storage air conditioners, a distributed power generation system composed of photovoltaic power generation, wind power generation, fuel cells, micro gas turbines and ice storage air conditioners, The primary system composed of energy storage system and other joint supply equipment and the secondary dispatching control system can significantly improve the comprehensive utilization efficiency of energy and the on-site consumption capacity of distributed renewable energy, and realize the economy and security of multi-energy micro-grids However, the multiple devices in the system are conceptually coordinated, and the actual organic combination has not been realized. The devices are separated from each other. How the devices are connected in specific applications will have a certain impact on the state of collaborative work, and the operation and maintenance will also It is more complicated, and the actual efficiency has an upward bottleneck

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