Crop phytotron capable of accurately and uniformly controlling temperature of cyclone airflow

A technology of artificial climate chambers and working objects, applied in the field of climate chambers, can solve problems such as inability to simulate large-scale crop production, differences in flower organs and physiological characteristics, and humidity reduction in artificial climate chambers.

CN112128956APending Publication Date: 2020-12-25RICE RES ISTITUTE ANHUI ACAD OF AGRI SCI +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2020-12-25

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Abstract

The invention provides a crop phytotron capable of accurately and uniformly controlling temperature of cyclone airflow. According to the crop phytotron capable of accurately and uniformly controllingthe temperature of cyclone airflow, at least two air supply ports, two air return ports and two auxiliary fans are diagonally arranged to form a cyclone airflow field of the phytotron. According to the temperature control, two-stage heat balance and two-variable temperature control measures are adopted: in the first-stage energy balance, cold water and hot water are prepared firstly; and in the second stage, cold water or hot water is used for balancing the heat exchange capacity between the phytotron and the outside. Two variables for adjusting energy are the water inlet flow and the water inlet temperature of an air heat exchanger. According to the crop phytotron, a temperature control model of the crop phytotron is derived, and a theoretical basis is provided for accurate temperature control of the crop phytotron; three signals need to be utilized for temperature control are provided and include solar radiation, enclosure structure heat transfer flow and indoor temperature, and corresponding temperature difference values are provided; embodiments are described; and the innovation of the theory and the technology has important significance and practical value.
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Description

technical field

[0001] The invention relates to the field of climate chambers, in particular to an artificial plant climate chamber with precise and uniform temperature-controlled whirlwind air flow. Background technique

[0002] Plant growth is affected by a variety of environmental factors: light, temperature, relative humidity, carbon dioxide, etc. In order to speed up the progress of modern agriculture, crop artificial climate chambers are widely used, a kind of artificial control, change and reproduction of various meteorological conditions in a closed system The experimental equipment is used to study the relationship between the growth, flowering and fruiting of crops and these factors; the current artificial climate chamber can be divided into three types according to the structure: box type, room type and mixed type: box type, small in size, adjustable Good performance, but the working area is generally only a few square meters, which cannot simulate the production ...

Examples

Embodiment Construction

[0038] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0039] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating ...