Greenhouse heating system and control method thereof

Abstract

The invention discloses a greenhouse heating system and a control method thereof. The greenhouse heating system comprises a thermal-insulation water tank and a greenhouse, wherein one end of the thermal-insulation water tank communicates with a solar circulating pump and a solar heating device through a solar heating water inlet pipeline; the other end of the thermal-insulation water tank communicates with the solar heating device through a solar heating water return pipeline; the thermal-insulation water tank communicates with an air heat pump through a pipeline; a radiator is arranged in the greenhouse; one end of the radiator communicates with a greenhouse heating circulating pump and the thermal-insulation water tank through a greenhouse heating water inlet pipeline; the other end of the radiator communicates with the thermal-insulation water tank through a greenhouse heating water return pipeline; and the solar circulating pump, the air heat pump, the radiator and the greenhouse heating circulating pump are electrically connected with a controller separately. The greenhouse heating system can be used for heating the greenhouse by converting solar energy into heat energy; various heating devices are monitored by a sensor; the controller controls the heating devices, so that the temperature in the greenhouse is kept within a high-precision temperature range, and therefore, the greenhouse heating system is more environmental-friendly, and cost is saved.

Description

technical field [0001] The invention relates to the technical field of temperature control in a greenhouse, in particular to an environmentally friendly greenhouse heating system and a control method thereof that can automatically control the temperature in the greenhouse so that the temperature in the greenhouse can be maintained at a constant temperature value. Background technique [0002] Greenhouses are generally equipped with necessary heating equipment, especially in low-temperature environments in winter, to maintain a certain temperature in the greenhouse, which is conducive to the normal growth of fruits and vegetables grown out of season in the greenhouse. At present, the conventional greenhouse heating method is to use a single energy source such as diesel, coal or natural gas to heat, and the cost is relatively high. [0003] Solar energy is generated by the hydrogen-helium fusion of hydrogen atoms inside the sun and releases huge nuclear energy, which is the ra...

AI Technical Summary

Problems solved by technology

The traditional solar greenhouse heating system cannot effectively control or stop heating according to the temperature of the greenhouse, because the plants in the greenhouse have high temperature requirements, and generally simple heating is not enough to meet the requirements

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