Stirring heating device capable of tracking maximum wind energy utilization rate

Abstract

The invention discloses a stirring heating device capable of tracking the maximum wind energy utilization rate. The stirring heating device comprises a wind turbine, a gearbox, a heating device, a circulating pump, a heat exchanger and a stirring working medium. The stirring heating device is characterized in that signals collected by a wind speed sensor and a rotation speed sensor are input to aprogrammable logic controller (PLC) to be processed, then, output signals control a motor to drive the circulating pump, and the stirring working medium is conveyed from the heat exchanger to the heating device; the rotation speed of the wind turbine under the operation working condition is adjusted in real time, the utilization section of the wind speed is broadened, the wind turbine can operateat the optimal tip speed ratio under various wind speeds, and the maximum wind energy utilization rate is achieved through the wind energy stirring heating device; and the wind energy resource is effectively utilized, and the stirring heating device has important theoretical and engineering practical significance to sufficient and efficient wind energy utilization and has wide commercial prospects.

Description

technical field [0001] The invention relates to a direct heating device using wind energy, in particular to a stirring heating device tracking the maximum utilization rate of wind energy. Background technique [0002] In the context of the depletion of traditional fossil energy and the increasingly serious environmental pollution, based on the fact that wind energy resources are abundant and belong to clean energy, it has been highly concerned by the national energy technology department. Due to poor wind power, the phenomenon of wind abandonment is very serious. Therefore, in recent years, wind energy heating devices that can directly convert wind energy into heat energy and can directly supply heat have been highly valued by scientific researchers and technicians. [0003] The wind energy direct heating device is a wind energy direct utilization technology that directly converts the kinetic energy of the wind into mechanical energy through the wind turbine, and then furthe...

AI Technical Summary

Problems solved by technology

[0005] 1) Existing wind energy stirring and heating devices generally have a working wind speed range of 7-35m / s, and a rated wind speed range of 13-15m / s, and can only be guaranteed to operate at the best tip speed ratio when operating at the rated wind speed , to ensure its maximum wind energy utilization efficiency, while in the rest of the wind speed range, the operating performance deviates seriously from the optimal tip speed ratio, resulting in a greatly reduced wind energy utilization efficiency when it operates at non-rated wind speeds;

[0006] 2) The self-starting performance of the existing wind energy stirring and heating devices is poor at low wind speeds, resulting in a serious narrowing of the wind speed utilization range. Therefore, the wind energy stirring and heating device actually has a low utilization rate of wind energy;

[0007] 3) The speed of the wind turbine, the main working part of the existing wind energy stirring and heating device, changes passively under the dual influence of aerodynamic torque and heater damping, which makes it seriously deviate from the optimal tip speed ratio during operation, resulting in Wind energy stirring heating device greatly reduces the utilization efficiency of wind energy

[0009] None of the existing literature and patents introducing wind energy stirring and heating devices overcomes and solves the above technical problems, resulting in the current wind energy stirring and heating devices generally not having a high utilization rate of wind energy, and it is impossible to realize industrial promotion and application

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