Device for controlling environmental temperature for growth of field plants by heat-carrying air method

Abstract

The invention relates to a device for controlling environmental temperature for the growth of field plants by a heat-carrying air method, which belongs to the technical field of plant culture. The device comprises fences, an air heating (cooling) machine, an air manifold, branched air ducts, air dispersion holes, a temperature sensor, an intelligent controller, electric wires and the like, can realize that field temperature distribution and a process for transferring heat between the environment and the plants are both more approximate to a natural state in a field temperature adjustment and control experiment, introduces heated (cooled) heat-carrying air into each corner of a field through the air dispersion holes on the air ducts of each stage and a tail stage, disperses the air around the plants, realizes the experiment on the influence of the environmental temperature for the growth of the field plants by using a heat-carrying air heat power adjustment and control method, and adopts a temperature control machine set (air compressor) with the dual functions of heating and cooling so as to achieve heating effect, perform cooling processing and achieve wider application range.

Description

1. Technical field [0001] The invention relates to a device for regulating and controlling the temperature of the growth environment of field plants by a heat-carrying air method, and belongs to the technical field of crop cultivation. 2. Background technology [0002] With the increasing trend of global warming, scientists are paying more and more attention to the effects of warming on plant growth and development, yield and quality. Methods and devices that can simulate the warming environment under field conditions are in great demand. In addition, plants often suffer from high temperature, dry hot wind or low temperature during the growth process, but the simulation research on these processes is mostly limited to greenhouses or artificial climate boxes, which cannot truly reproduce the actual situation in the field. A device that can control the ambient temperature of plants. [0003] The existing temperature control method of field plant growth environment is thermal ...

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Problems solved by technology

But there are following four defects in this known way: (1) the heat transfer process of this method is contrary to the influence process of plant body temperature on plant body temperature by natural world atmospheric temperature

(2) There is spatial inhomogeneity in the heating process

This may lead to plants in different physical spaces in the field, and the temperature distribution in different parts of the same plant is extremely uneven, which is too far from the natural state

(3) The temperature control range is small and the power consumption is large

The radiation spreads in a straight line, and its heating range is generally limited to the coverage of thermal radiation, so the area that can be heated under field conditions is small

(4) The device designed by this method cannot be used for field cooling control

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