Thermal power plant coupled low-temperature heat supply agricultural greenhouse system and control method thereof

Abstract

The invention discloses a thermal power plant coupled low-temperature heat supply agricultural greenhouse system and a control method thereof. The system comprises a low-temperature heat supply network heat exchanger, a purified flue gas conveying pipeline and a gas fertilizer pipe which are arranged in a thermal power plant, and the heat of the low-temperature heat supply network heat exchanger is supplied by the thermal power plant; and the output end of the low-temperature heat supply network heat exchanger is connected with the input end of a radiator through a low-temperature heat supply network, the input end of the purified flue gas conveying pipeline is connected with a flue gas connecting pipeline behind a boiler flue gas dust remover of the thermal power plant and in front of an exhaust chimney, the output end of the purified flue gas conveying pipeline is connected with the gas fertilizer pipe, the gas fertilizer pipe is provided with a plurality of gas fertilizer outlets, and the radiator and the gas fertilizer pipe are both arranged in an agricultural greenhouse. The system has the beneficial effects that by means of waste heat of the thermal power plant, low-temperature heat supply of the greenhouse system is achieved, meanwhile, the heating amount of fuel is reduced, and the heat supply cost of the greenhouse is reduced; and carbon dioxide gas fertilizer supply of the greenhouse is realized by utilizing part of clean flue gas discharged by the thermal power plant, so that carbon capture of the thermal power plant is realized in a disguised manner.

Description

technical field [0001] The invention belongs to the technical field of greenhouses, and in particular relates to a thermal power plant coupling low-temperature heating agricultural greenhouse system and a control method. Background technique [0002] Agricultural production seeks to obtain the maximum yield on a limited land area, and crop yield is not only related to the genetic gene of the variety itself, but also affected by surrounding environmental factors. Among them, temperature is one of the most important environmental parameters for crop growth and development, and the ambient temperature required by different crops at different growth stages is also different. For the greenhouses in the cold regions of northern my country, the complex environment inside and outside the greenhouses makes it extremely difficult to control the growing environment of crops. Most traditional greenhouses maintain the temperature in the shed by collecting heat from the sun, but if it en...

AI Technical Summary

Problems solved by technology

The reduction of carbon dioxide concentration will slow down the photosynthesis speed of plants in the greenhouse, affect the normal growth and development of plants, and cause crop yield reduction

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