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Method and device for storing redundant heat of greenhouse and preventing high temperature of greenhouse

A greenhouse and heat technology, applied in the agricultural field, can solve the problems of heat can not be reused, heat can not be used, high air humidity, etc., to achieve the effect of preventing freezing damage and low temperature damage, preventing high temperature in the greenhouse, and increasing the night temperature

Inactive Publication Date: 2016-12-21
DASHUN INT FLOWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that it consumes electricity, and the excess heat cannot be reused
Natural convection ventilation cooling is also an effective cooling method, which is characterized by no driving energy and simple operation, and its disadvantage is that the excess heat cannot be used
Wet curtain cooling is highly efficient and energy-saving, but the disadvantage is that it needs power supply and the air humidity is too high

Method used

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  • Method and device for storing redundant heat of greenhouse and preventing high temperature of greenhouse
  • Method and device for storing redundant heat of greenhouse and preventing high temperature of greenhouse
  • Method and device for storing redundant heat of greenhouse and preventing high temperature of greenhouse

Examples

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Effect test

Embodiment 1

[0034] A method of storing excess heat in a greenhouse and preventing high temperatures in a greenhouse by means of a good conductor of heat aluminum container filled with a low-temperature hydrated salt calcium chloride hexahydrate and a good conductor of heat with an aluminum heat-conducting panel The aluminum cover transfers the solar energy and excess energy exceeding the melting point of 29 degrees Celsius in the greenhouse to the low-temperature hydrated salt calcium chloride hexahydrate. The low-temperature hydrated salt calcium chloride hexahydrate absorbs heat and maintains it in the form of latent heat, saving excess energy, while It will not continue to heat up until it is completely melted, so that the temperature in the greenhouse is controlled below the melting point of low-temperature hydrated salts of 29 degrees Celsius. The reduced indoor air releases heat, increases the temperature of the greenhouse at night, prevents the phenomenon of temperature inversion in...

Embodiment 2

[0037] A method for storing excess heat in greenhouses and preventing high temperatures in greenhouses, through a container filled with low-temperature hydrated salt sodium sulfate decahydrate composed of good thermal conductor stainless steel materials and stainless steel with stainless steel heat conduction panels composed of thermal good conductor stainless steel materials The cover transfers the solar energy and the excess air energy above the melting point of 32.4 degrees Celsius in the greenhouse to the low-temperature hydrated salt sodium sulfate decahydrate, and the low-temperature hydrated salt sodium sulfate decahydrate absorbs heat in the form of latent heat and saves the excess air in the temperature above 32.4 degrees Celsius without continuing to heat up, so that the temperature in the greenhouse is controlled below the melting point of low-temperature hydrated salts of 32.4 degrees Celsius. At night, when the ambient temperature is lower than 32.4-10 degrees Celsi...

Embodiment 3

[0039]A method for storing excess heat in greenhouses and preventing high temperatures in greenhouses, through a container filled with a low-temperature hydrated salt, disodium hydrogen phosphate dodecahydrate, which is composed of a good thermal conductor iron material and a container made of a good thermal conductor iron material. The cover of the heat-conducting panel transfers the solar energy and excess energy exceeding the melting point of 35 degrees Celsius in the greenhouse to the low-temperature hydrated salt disodium hydrogen phosphate dodecahydrate, and the low-temperature hydrated salt disodium hydrogen phosphate dodecahydrate absorbs heat in the form of latent heat and saves excess energy energy, without continuing to heat up, so that the temperature in the greenhouse is controlled below the melting point of low-temperature hydrated salts below 35 degrees Celsius. At night, when the ambient temperature is lower than 35 degrees Celsius, the molten low-temperature hyd...

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Abstract

The invention provides a method and device for storing redundant heat of a greenhouse and preventing high temperature of the greenhouse. According to the method, after the temperature in the greenhouse is higher than a specific temperature, redundant heat in the greenhouse is absorbed through low temperature energy-storing materials such as hydrated salts having a low temperature melting point, the temperature of the greenhouse is controlled below a phase-change temperature of the low temperature energy-storing materials, the temperature of the greenhouse is prevented from rising too quickly, and plants in the greenhouse in summer are protected from damage caused by the high temperature. Sunlight and high temperature of bare land of the greenhouse are absorbed through the energy-storing materials such as the low temperature hydrated salts and high-density crosslinked polyethylene, residual heat of the environment is transmitted to cold storage materials such as hydrated salts through thermal good conductor materials; after the energy-storing materials absorb heat, fusion or phase change of other types occurs; before complete fusion, the temperature is always kept at a melting point, and an inhibiting effect on plant growth caused by too quick temperature rise in the greenhouse is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of agriculture, and in particular relates to a method and a device for storing excess heat in a greenhouse and preventing high temperature in the greenhouse. Background technique [0002] The basic environmental elements needed for plant growth include five elements: light, temperature, water, fertilizer, and gas. In the smart greenhouse, the light, temperature, water, and fertilizers have been intelligently controlled, and the crop yield has been greatly improved. Temperature is the most basic condition for all other conditions to play a role, so the temperature control and heating technology of the greenhouse is the most basic and critical technology of the greenhouse. Most of the current heating technologies use straw burning, coal burning, oil burning, natural gas and biogas burning methods, and some areas with conditions use electric heating. The disadvantages of these methods are high operating costs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G9/24F24D15/02
CPCA01G9/246F24D15/02Y02A40/25
Inventor 陈文生杨秉祥只艳玲王喆杨铁顺
Owner DASHUN INT FLOWER
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