A fully automatic low-energy-consumption heating method for greenhouses

Abstract

The invention discloses a full-automatic low-energy-consumption warming method of a greenhouse. The full-automatic low-energy-consumption warming method comprises the following steps: mounting a warming system, setting, keeping heat, heating by solar energy, electrically heating, and carrying out heat-transfer cycle. The warming system comprises a warming device with heating and heat preservation functions, an electric temperature control circulating water pump and a plurality of heat radiation sheets coated with heat absorption coatings, wherein the warming device, the electric temperature control circulating water pump and the heat radiation sheets are connected in sequence to form a heat-transfer cycle loop. The starting temperature of repeatedly heating a heat transfer medium is very high through the heat preservation function of the warming device and the heat absorption function of the heat radiation sheets coated with heat absorption materials, so that the energy consumption is extremely saved, the energy efficiency is high and the warming cost is saved. Overall, the full-automatic low-energy-consumption warming method has the advantages of energy conservation, environment friendliness and no pollution, uniformity in warming, low cost and high energy efficiency, full-automatic warming, water conservation, and flexibility and convenience for setting, and can be widely popularized and applied.

Description

Technical field [0001] The invention relates to a method and device for increasing temperature, in particular to a method and device for increasing the temperature of a greenhouse. Background technique [0002] The existing greenhouse heating technologies mainly include the following categories: [0003] A. Hot blast stove: It is widely used as a greenhouse to increase temperature, and its structure is coal stove and iron sheet ventilation pipe. The principle is that hot air is produced by burning coal in a coal furnace, and the hot air transports heat through iron pipes to achieve the effect of heating. [0004] B. Coal-fired heating boilers: generally used by agricultural cooperatives with certain economic conditions. The structure includes a coal-fired high-pressure boiler, a hot water circulating pump, a hot water pipe and a heat sink. The principle is that the boiler burns coal to heat water, and uses water as the heat transfer medium to circulate to the radiator through a ci...

AI Technical Summary

Problems solved by technology

[0007] A. Hot air stove: Although the cost is the cheapest, it has high energy consumption, high pollution, and requires people to add coal regularly. At the same time, because of the structure that the hot air dissipates heat through the hot air pipe, the heat near the coal stove is high, and the heat at the end is low. There is a problem of uneven heating and increasing

[0008] B. Coal-fired heating boiler: the advantage is that the heating is uniform, but the cost is expensive, the energy consumption is medium, the pollution is large, and people need to add coal regularly, it is difficult to popularize and apply in a large area

[0009] C. Electric heating boiler: the advantages are no pollution and uniform heating, but the cost is the highest and the energy consumption is high. It is only used for demonstration in agricultural demonstration gardens, and it is difficult to popularize and apply it on a large scale.

[0010]Moreover, the above three existing greenhouse warming methods and systems do not have the function of heat preservation. After the heating is started every night and the system is closed in the morning, the water used as the heating transmission medium The temperature gradually dissipates, and when the heat preservation curtain is closed at night and the system is started again for heating, the water temperature has been greatly reduced compared with the end of heating in the morning, and the initial temperature of the transmission medium is lower for reheating, resulting in greater energy loss

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