Automatic control system for producing carbon dioxide by electric heating and decomposing ammonium bicarbonate
An automatic control system, ammonium bicarbonate technology, applied in the direction of control/regulation system, non-electric variable control, carbon dioxide fertilizer production, etc., can solve the problems of low degree of automation, short transportation distance, gas leakage, etc., to reduce labor intensity, The effect of reducing system cost and reducing the number of times
Active Publication Date: 2022-05-13
山东环擎信息科技有限公司
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[0002] Carbon dioxide is an essential raw material for green plants to grow, so the carbon dioxide generator used in the greenhouse is an important agricultural equipment. Among the existing carbon dioxide generators used in the greenhouse, they are divided into acid decomposition method and thermal Decomposition method, among which, thermal decomposition method is widely used. The thermal decomposition method generates carbon dioxide and ammonia by directly heating ammonium bicarbonate. After the ammonia is absorbed, the carbon dioxide is released to the crops. It has the advantages of convenient application and low cost. However, in the existing carbon dioxide generators using the thermal decomposition method, since the reaction is carried out in a positive pressure environment, there are disadvantages of easy gas leakage, short transportation distance, and low degree of automation.
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[0024] The invention adopts electric heating to decompose ammonium bicarbonate, and ammonium bicarbonate is thermally decomposed to produce carbon dioxide, ammonia gas and water, and ammonia gas is easily soluble in water to form ammonia water, and carbon dioxide gas is difficult to dissolve in water, so that ammonium bicarbonate is thermally decomposed to produce The mixed gas (carbon dioxide, ammonia and water) passes through the water purifier (the filter medium in the water purifier is clear water), absorbs the ammonia in the mixed gas, and filters to obtain pure carbon dioxide. The filtered carbon dioxide gas can be sent to the greenhouse through the delivery device.
[0025] Among them, the formula for generating carbon dioxide, ammonia and water by thermal decomposition of ammonium bicarbonate is as follows:
[0026]
[0027] The formula for the reaction of water and ammonia gas is as follows:
[0028] NH 3 +H 2 O=NH 3 ·H 2 o
[0029] The automatic control syst...
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The invention discloses an automatic control system for producing carbon dioxide by electrically heating and decomposing ammonium bicarbonate, comprising: an electric heating reactor, a controller and a water purifier, the upper part of the water purifier communicates with a conversion device, and the conversion device includes: The second to fifth pipelines and the exhaust air pump, the air inlet of the exhaust air pump communicates with the second pipeline, and the second solenoid valve is installed on the second pipeline; the air outlet of the exhaust air pump communicates with the third pipeline, and the third pipeline A third electromagnetic valve is installed on the top; a fourth pipeline is connected to the second pipeline between the second electromagnetic valve, and a fourth electromagnetic valve is installed on the fourth pipeline; between the exhaust air pump and the third electromagnetic valve A fifth pipeline is connected to the third pipeline, and a fifth solenoid valve is installed on the fifth pipeline. The invention uses an exhaust gas pump to pump and transport the gas, so that the negative pressure is maintained in the electric heating reactor, overcomes the problem of sealing the electric heating reactor, and prolongs the gas transportation distance.
Description
technical field [0001] The invention belongs to the field of carbon dioxide generators, and in particular relates to an automatic control system for producing carbon dioxide by electrically heating and decomposing ammonium bicarbonate. Background technique [0002] Carbon dioxide is an essential raw material for green plants to grow, so the carbon dioxide generator used in the greenhouse is an important agricultural equipment. Among the existing carbon dioxide generators used in the greenhouse, they are divided into acid decomposition method and thermal Decomposition method, among which, thermal decomposition method is widely used. The thermal decomposition method generates carbon dioxide and ammonia by directly heating ammonium bicarbonate. After the ammonia is absorbed, the carbon dioxide is released to the crops. It has the advantages of convenient application and low cost. However, in the existing carbon dioxide generating device using the thermal decomposition method, s...
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IPC IPC(8): A01G9/18C05D7/00C01B32/50G05D27/02
CPCG05D27/02C05D7/00
Inventor单慧勇李合伟赵辉王远宏卫勇于镓李传坤
Owner山东环擎信息科技有限公司