Elevator solar energy renewable energy utilization system

Abstract

The invention discloses a renewable solar energy recycling system for an elevator. The motor of the elevator is sequentially connected with one end of a first hot-collecting air pipe, a third hot-collecting air pipe and a second hot-collecting air pipe, and a convection heat exchanger; the convection heat exchanger is internally provided with a heat exchange fan, a convection evaporator and a wind outlet; one end of the convection evaporator is connected with one end of a first condensing coil in a water storing tank through a main pipe and a first condenser; while the other end of the convection evaporator is connected with the other end of the first condensing coil through a convection expansion valve; one end of a solar energy heat-collecting evaporator is connected with one end of thefirst condensing coil of a the water storing tank through the main pipe and the first compressor; while the other end of the solar energy heat-collecting evaporator is connected with the other end ofthe first condensing coil through a radiation expansion valve and an output main pipe; the other end of the second hot-collecting air pipe is connected with a braking resistor. The solar energy recycling system of the invention absorbs and releases heat through the variation of the refrigerant in the heat pump system at the cost of consuming less electric power, and a great deal of low-temperature waste heat generated by an elevator and solar energy is used to heat hot water used in daily life and an air conditioner.

Description

technical field [0001] The invention relates to the utilization of solar energy renewable energy for elevators, in particular to a system for utilizing solar energy renewable energy for elevators. Background technique [0002] Elevators are one of the largest electrical equipment in modern buildings, and their power consumption accounts for about 7% of the total power consumption of the entire building. At present, there are nearly 1 million elevators in use in my country, and the annual power consumption is about 30 billion kWh. According to tests, the waste heat emitted by elevator operation accounts for about one-third of the entire elevator power consumption. In the whole country, nearly 10 billion kWh of electricity is wasted in the form of waste heat through elevator motors, control cabinets, braking resistors and other components every year. Because the elevator is a vertical transportation equipment, its driving motor usually works in the state of dragging power con...

AI Technical Summary

Problems solved by technology

Because the elevator is a vertical transportation equipment, its driving motor usually works in the state of dragging power consumption or braking power generation. The current through the braking resistor generates heat to achieve the purpose of power-consuming braking. Therefore, the braking heat dissipation is very large, coupled with the heat dissipation of the elevator motor and the control cabinet, the temperature of the elevator machine room rises sharply, which not only causes a lot of energy Waste will also affect the safe operation of the elevator

At present, air-conditioning facilities are usually installed in the elevator machine room to maintain a constant temperature in the machine room, but it increases the power consumption of the elevator operation

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