Method and device for producing CO2 by decomposing NH4HCO3

Abstract

The invention discloses a method and device for producing CO2 by decomposing NH4HCO3. The method is characterized by utilizing high frequency electromagnetic wave radiation to vibrate the water molecules in NH4HCO3 to ensure the water molecules to generate heat so as to promote NH4HCO3 to be decomposed to produce CO2. The device comprises a box body and is characterized in that an electromagnetic wave radiation part and a gas generation and release part are distributed in the box body, wherein the electromagnetic wave radiation part comprises a high frequency radiator for radiating high frequency electromagnetic waves to the gas generation and release part; the gas generation and release part comprises a reaction cavity and an absorption cavity; the reaction cavity contains NH4HCO3; the generated gases are discharged to the absorption cavity via a gas output pipe; the absorption cavity contains water and is connected with an exit pipe; and the exit pipe leads to a greenhouse and can be provided with a plurality of release ends at intervals. The method and the device have the following advantages: intermittent high frequency electromagnetic wave radiation is utilized to promote decomposition of ammonium bicarbonate; CO2 can be produced without adding extra drugs to NH4HCO3; and the pure CO2 is generated and does not contain such harmful gases as ammonia, thus farthest ensuring the production safety of fruits and vegetables.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a kind of decomposing NH for plant greenhouse 4 HCO 3 Production of CO 2 Method and device for fertilizing. Background technique [0002] Protected facilities such as greenhouses are relatively airtight fruit and vegetable crop cultivation places, and the light, temperature, humidity, CO 2 Concentration and other conditions are significantly different from open field cultivation, especially indoor and outdoor gas exchange is limited. The crops cultivated in protected areas are in high temperature and high humidity environment for a long time, and the light intensity is lower than that of open field cultivation. 2 The concentration is much lower than that of the atmosphere during the day due to the photosynthesis of plants (usually the CO in the atmosphere 2 The content accounts for 0.03%, that is, CO 2 The concentration in the atmosphere is 0.3 ml / liter), and it is si...

AI Technical Summary

Problems solved by technology

[0006] Currently, ammonium bicarbonate is used to produce CO 2 The main methods are: first, using NH 4 HCO 3 Reacts with sulfuric acid to produce CO 2 However, sulfuric acid is highly corrosive. Once the surface of the human body comes into contact with sulfuric acid, it will be burned immediately, causing great harm to people. The storage and transportation of sulfuric acid are inconvenient; the second method: use a heating plate to heat and decompose NH 4 HCO 3 , but generally the heating rate is slow, and it takes about 20 minutes to generate a large amount of CO 2 Gas, high energy consumption, heating power 1500~2000KW, 2kg NH 4 HCO 3 It takes 2 to 3 hours to decompose. This method cannot be used continuously. There is an overheat protection device inside. When the decomposition is completed, the overheat protection device will cut off the power. The next use must be continued after the temperature of the overheat protection system drops. use

[0007] And CO 2 Fertilization technology is: first, using industrial liquid CO 2 , but using liquid bottled CO made in industrial plants 2 Gas, limited by the gas source, most rural areas do not have corresponding industrial gas production plants, the ventilation is not timely, and continuous use cannot be guaranteed. At the same time, the price of the gas cylinder is high, and it needs to be decompressed before it can be released. The operation is difficult and dangerous; Second, use hanging bags to store CO 2 Gas, this kind of gas has a low amount of generation, slow speed, and is released all the time. It cannot be released in large quantities according to the absorption time of plants, causing CO 2 Waste of gas, low uptake by plants

[0008] There are three common problems with the above technologies: one is the high cost of use, and the increase in production does not increase the income of farmers; If the operation technology is not good enough, it is easy to miss the opening time of the stomata of the crop leaves, resulting in waste of resources and failure to achieve the effect of fertilization

Images