Energy-saving heating control device of greenhouse hot blast stove

Abstract

The invention discloses an energy-saving heating control device of a greenhouse hot blast stove. The energy-saving heating control device comprises a hearth chamber, the hot blast stove, a temperaturesensor, an MCU controller and a PWM power module. The hearth chamber is arranged at the lower portion of the hot blast stove, and a fan is installed on a direct current motor. The direct current motor, the temperature sensor, the MCU controller and the PWM power module form the energy-saving control device. The energy-saving heating control device of the greenhouse hot blast stove is reasonable in structural arrangement, the temperature sensor is used for monitoring greenhouse inner air temperature information in real time, the MCU controller outputs a PWM control signal according to the relationship between the measured temperature value and the set temperature range, the PWM signal is amplified through the PWM power module and is then used for driving the direct current motor, the rotating speed of the fan is determined according to the rotating speed of the motor, the greenhouse inner temperature can be monitored, the rotating speed of the fan at an air inlet of the hot blast stovecan also be controlled, and therefore control over the fuel combustion speed and the heat generation speed is achieved, and a proper environment can be provided for greenhouse crop growth.

Description

Technical field [0001] The invention relates to the technical field of heating and energy-saving control of agricultural greenhouses, in particular to an energy-saving heating control device for a greenhouse hot blast stove. Background technique [0002] Heating energy consumption accounts for a large proportion of greenhouse winter production costs. Therefore, reducing greenhouse heating energy consumption is of great significance to improving the economic benefits of greenhouse production. Hot blast stoves are the most widely used heating equipment for greenhouses in China in winter. Compared with hot water pipes, The hot blast stove has the advantages of simple installation, easy maintenance, easy operation, short preheating time, and fast heating. However, it is not easy to control the heating degree of the hot blast stove during the heating process. Traditionally, simple switch control is used to not only operate It consumes a lot of money and easily leads to violent fluctua...

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is to overcome the difficulty of controlling the heating degree of the hot blast stove in the heating process of the prior art. Traditionally, the simple switch control not only consumes a lot of energy in operation, but also easily leads to a decrease in the indoor temperature. For the defect of violent fluctuations, an energy-saving heating control device for greenhouse hot air stoves is provided

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