Cultivation tank nutrient liquid temperature control system and control method thereof

A technology of temperature control system and control method, applied in auxiliary non-electric temperature control, program control in sequence/logic controller, electrical program control, etc. Liquid temperature instability and other problems, to achieve the effect of temperature cycle control and direct control, reduce temperature loss, and enhance the effect of heat preservation

Pending Publication Date: 2018-04-06
SHENYANG AGRI UNIV
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  • Application Information

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Problems solved by technology

[0003] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide a cultivation tank nutrient solution temperature control system and its control method, to solve the prob

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  • Cultivation tank nutrient liquid temperature control system and control method thereof
  • Cultivation tank nutrient liquid temperature control system and control method thereof

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[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] like Figure 1 to Figure 2 As shown, the cultivation tank nutrient solution temperature control system includes a constant temperature control device 1, an aeration device 2 arranged above the constant temperature control device 1, a cultivation tank 7 and an insulation board 4 wrapped in the outer layer of the cultivation tank 7; the cultivation tank 7 The interior of the tank is provided with a circulation pipe 6 for transporting circulating liquid, a...

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Abstract

The invention discloses a cultivation tank nutrient liquid temperature control system and a control method thereof. The control system comprises a constant temperature control device, a ventilation device, a cultivation tank and a heat insulation board. The cultivation tank is internally provided with a circulation pipe whose two ends communicate with the constant temperature control device through infusion tubes. A planting plate is arranged above the cultivation tank. The ventilation device supplies gas to a nutrient solution inside the cultivation tank through a gas transmission pipe. The temperature setting is carried out through the constant temperature control device, the circulation pipe and the nutrient solution are in full contact, and the temperature of the nutrient solution is effectively controlled and maintained. Through setting the heat insulation board, the heat insulation effect of the cultivation tank is enhanced, the temperature loss of the nutrient solution is reduced, the temperature of the nutrient solution can be controlled in a range of plus or minus one DEG C of a temperature set by the constant temperature control device, the needs of plant growth are satisfied, the utilization rate of the nutrient solution is improved, through a program control method and a single-point control method, and the temperature cycle control and direct control of the plant are achieved, which is convenient, fast and efficient.

Description

technical field [0001] The invention specifically relates to a cultivation tank nutrient solution temperature control system and a control method thereof. Background technique [0002] The solar greenhouse is the main type of horticultural facilities for off-season vegetable supply in northern my country. The key technology of solar greenhouse production lies in environmental control, and temperature conditions are the most basic environmental conditions for crop life activities. Among them, the temperature of the plant root zone is more difficult to control during nutrient solution cultivation. The sunlight in the solar greenhouse is strong during the day, and the temperature in the greenhouse is high. The direct sunlight on the shelf cultivation tank will increase the temperature of the nutrient solution, which will have a great impact on the growth and development of the crops, and will cause the above-ground and underground growth of the crops to be uncoordinated. Nutr...

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Application Information

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IPC IPC(8): G05D23/185G05B19/04
CPCG05B19/04G05D23/185
Inventor 刘玉凤张耀丰宁晓峰李天来齐明芳鹿嘉智王珍琪
Owner SHENYANG AGRI UNIV
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