CN201407658Y - Catalytic combustion device benefiting quality improvement and high yield of crops in greenhouse - Google Patents
Catalytic combustion device benefiting quality improvement and high yield of crops in greenhouse Download PDFInfo
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- CN201407658Y CN201407658Y CN2009201436883U CN200920143688U CN201407658Y CN 201407658 Y CN201407658 Y CN 201407658Y CN 2009201436883 U CN2009201436883 U CN 2009201436883U CN 200920143688 U CN200920143688 U CN 200920143688U CN 201407658 Y CN201407658 Y CN 201407658Y
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Abstract
The utility model relates to a low-temperature catalytic combustion device used for improving quality and increasing yield of crops in greenhouse, which consists of a rear face shield (2), a grid splint (3), a fiber shunt layer (4), an electrical heating silk screen (5), a catalyst layer (6), a high temperature resistant cover layer (7) and a protective metal screen (8). A junction box (10) for supplying power for the electrical heating screen (5) is fixed on the housing of the rear face shield; and a gas input connector is connected in the back side center of the rear face shield and opens atthe fiber shunt layer (4). After being shunted by the fiber shunt layer, the gas is uniformly spread to the electrical heating layer for being heated to the burning point and is then mixed with oxygen spread from the front air in the catalyst layer so as to carry out a low-temperature catalytic combustion, carbon dioxide and water vapor are released, and infrared thermal energy is radiated, thereby satisfying the special demands of fast growth of the crops in greenhouse for CO2 air fertilizer and growth temperature and humidity.
Description
Technical field
The utility model relates to and is used for chamber crop increase quality, improves output and the catalytic combustion system of the phase of going on the market in advance, and referring in particular to combustion gas does not need a kind of low-temperature catalytic burning that closes with air pre-mixing, the device of radiated infrared heat energy.
Background technology
Photosynthesis is the plant growth basis that comprises crops.Crop absorption solar energy, every consumption 6 molecule CO
2With 6 molecule H
2O produces 1 molecule glucose, discharges 6 molecule O
2A glucose part is utilized as energy matter, major part is converted to the intermediate material of other metabolic cycles, or is further synthesized high molecular polymer, such as: cellulose, starch, glycogen etc., finally become the dry of crop, keep the growth of crops.The position that photosynthesis takes place is a chloroplaset, divides for 2 steps carried out.The first step is the photoreaction stage that relies on light, and luminous energy is directly absorbed by crop, and the photodissociation hydrone discharges electronics and O
2Electronics constantly transmits on the chloroplaset cyst membrane, generates energy matter, for the dark reaction utilization of second step.Cloudy, turbid phase does not need light, utilizes the metabolite of photoreaction stage and the CO in energy capture and the fixed air
2, generate carbohydrate [CH
2O]
nMake a general survey of the total process of photosynthesis, the leaf of crops is photosynthetic main place, and water, carbon dioxide are raw materials, and sugar and oxygen are products, and carbon dioxide enters from air in the plant leaf blade cell by diffusion.
Booth, greenhouse (following general designation greenhouse) fruits and vegetables, flower planting have become the main pillar industry of China's modern agriculture at present, and cultivated area increases year by year.But compare the country of agricultural science and technology prosperity, China's chamber crop planting technology seriously falls behind.Crop carries out photosynthetic major influence factors and is in the greenhouse: secondly luminous intensity, gas concentration lwevel and temperature are water and necessary nutrient.Sunlight sees through greenhouse roof and is shining into, though illuminance has loss, satisfies crop utilization reluctantly.The sealed greenhouse of heat that sunlight produces remains, and indoor temperature is higher than outdoor, helps crop and grows fast.But the drawback of chamber planting is apparent too, and at first because of deficiency in draught causes the indoor carbon dioxide deficiency, this is the critical limitation factor of fruits and vegetables of greenhouse volume increase.Test statistics factually, the whenever synthetic 1 gram organic matter of green plants just needs to absorb the carbon dioxide of 1.6 grams, is about 40 times that absorb other material.Thus, carbon dioxide is main " grain " in the plant growth and development process.According to surveying and determination, Atmospheric Carbon Dioxide concentration is 350-400ppm, is not photosynthetic optium concentration.The greenhouse concentration of carbon dioxide, with before the sunrise for the highest, but also have only 100-200ppm, be lower than atmospheric level.After the sunrise in one hour the gas concentration lwevel in the greenhouse air quickly fall to 70-90ppm, crop is in serious " hunger " state of carbon dioxide, and ventilation just can go back up to 200-250ppm after two hours, but the greenhouse internal-external temperature difference is too big sometimes, again can not ventilation.If can bring up to 800-1000ppm to the gas concentration lwevel in the greenhouse air artificially, will obviously improve photosynthetic efficiency, leaf dark green, sucrose accumulation, short bud differentiation reduces the melon and fruit abnormal rate, prolong productive phase, and crop is fresh and tender, quality increases, output can improve 30%-40% (Chen, Hu, and Lenz, Angew.Bot., 71,195-200,1997.).In addition, the crop anti-adversity ability also improves greatly, and various diseases, insect pest certainly will alleviate.Some other research shows that also gas concentration lwevel increases in the greenhouse, and the crops transpiration reduces 20-40%, therefore the leaf surface temperature raises, and helps crop insulation, water conservation and improves photosynthetic efficiency (Tolley and Strain, Can.J.Bot., 62,2135-2139,1984; Morison, Plant Cell Environ., 8,467-474,1985); Crop grows under the environment of high carbon dioxide concentration, and oxidation preventive content increases (Wang, Bunce, and Maas, J.Agric.Food Chem., 51,4315-4320,2003) in the body.
At present, carbonate is the most frequently used method of greenhouse artificial supplementation carbon dioxide with acid, water reaction generation carbon dioxide, but existence release is uneven, gas is impure, execute the fertile equipment of gas because of shortcomings such as corrosion life-span weak points, and easy acidified soil.Another method that enriches carbon-dioxide gasfertilizer is that burning is the fuel of matrix with carbon, as: natural gas, biogas, propane, kerosene etc., except enriching carbon dioxide, also produce heat and water vapour, help plant growth.But this class methods abrupt release excessive carbon dioxide and heat, effective crop utilization rate of fuel is low.In addition, the high temperature of combustion flame generation makes nitrogen oxide (NO in the greenhouse
x) concentration raises, this in addition cause blast (Wellburn, New Phytol., 115,395-429,1990).Too much nitrogen oxide (NO in the greenhouse
x) suppress plant growth, induce mesophyll cell death.When the higher fuel combustion of sulfur content, produce a large amount of SO
2Gas also causes crop dead fast.The SO of low concentration
2And NO
xWhen the injury that mist causes crop exists than the two independent high concentration also serious (Ashenden, Mansfield and Harrison, Environ.Pollut., 14,93-100,1977).Some burner (as: biogas lamp) design defect causes non-complete combustion of fuel to produce CO and ethene.Ethene is auxin, quickens crop and wears out, and makes the blade flavescence, and setting percentage reduces (Hanan, Hortscience, 8,23-24,1973 greatly; Hand, Sci.Hortic., 33,14-43,1982).
The patent No. and application number are respectively ZL200620035738.2,91223432.6 utility model patent has been announced the catalytic combustion system that a class combustion gas and air pre-mixing are closed.This class apparatus structure is complicated, because burning occurs in the back side of catalyst layer, face shield and catalyst layer hinder the release of heat, so the ignition temperature height, the fuel thermal energy conversion ratio is low, and it is few to discharge infrared energy, and produce more CO (Dongworth and Melvin, 16
ThSymposium on Combustion, 255-264,1976).
The utility model content
In order to overcome the problems referred to above; the utility model proposes a kind of easy, efficiently solve the low-temperature catalytic burning equipment of the problem that exists in the above-mentioned greenhouse; it is made up of rear mask (2), grid supporting plate (3), fiber shunting layer (4), electrical heating silk screen (5), catalyst layer (6), high temperature resistant cover layer (7) and protection wire netting (8); fix the terminal box (10) of promising electrical heating net (5) power supply on the rear mask shell; rear mask back side central authorities are connected to combustion gas input connector (11), are opened on fiber shunting layer (4).Combustion gas evenly diffuses to electric heating layer through the fiber shunting layer and is heated to burning-point, the oxygen mix generation catalytic combustion that in catalyst layer and front air, diffuses into, and release of carbon dioxide and steam give off infrared heat energy.
The catalytic reaction ignition temperature is 150 ℃, and this needs the electric preheating device to give gas-preheating.After reaching this temperature in preheating 15-30 minute, open fuel gas buring again.The electric preheating device can also can insert dc-battery by the alternating current energy supply.After connecting combustion gas generation catalytic combustion, the burning surface temperature can reach 300-600 ℃, and the height of temperature is relevant with gas flow.Burning source of the gas winter can be natural gas, propane or other carbon-containing fuel, and other, biogas was optimal source of the gas in season.
The utility model beneficial effect is:
1, catalyst contacts with the air large tracts of land, and fuel combustion is abundant, thorough, the efficiency of combustion height, and energy transformation ratio is far above electric heater (＜30%);
2, the energy 60-80% of burning generation is converted into the infrared radiation energy, the radiation wavelength is most to be changed between the 2-10 micron, the infrared waves burst size maximum that its medium wavelength is 3.5 microns, compare with traditional electrical heating release short wavelength's (1-3 micron) heat energy, the infrared energy that the utility model device discharges is easier to be absorbed by plant;
3, burning provides enough CO to the greenhouse
2, steam and infrared heat energy, do not produce NO
x
4, combustion gas is non-flaming combustion and explosion-proof on the utility model device, and ignition temperature is lower than the combustion gas autoignition temperature, and is safe in utilization.
The utility model device can be used for the place of the explosion-proof and infrared heating of other needs, as is full of that gasoline, toluene and acetone etc. are inflammable, the place of explosive organic gas.The utility model device manufacturing process is simple, and the cost cost is low, can be made into different shape and specification according to the different places demand.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the utility model moulding profile
Fig. 2 is the utility model parts assembly drawings
Legend: 1. Gas Pipe, 2. rear mask, 3. grid supporting plate, 4. fiber shunting layer, 5. electrical heating silk screen, 6. catalyst layer; 7. high temperature resistant cover layer, 8. protection wire netting, 9.L shape framework, 10. terminal box, 11. combustion gas input connectors; 12. pad, 13. pads, 14. trim rings, 15. nuts, 16. screws
The specific embodiment
Consider carrying and practical operation, typical rectangle burner can be done grow up 1 meter, wide 0.2 meter specification, the specification of the circular diameter made 0.2-1 rice.Burner outside above-mentioned specification also can conveniently be made and be operated.Be that the utility model is described in representative in detail with the rectangle burner below.
Burner is made up of: rectangle rear mask (2), grid supporting plate (3), fiber shunting layer (4), electrical heating silk screen (5), catalyst layer (6), high temperature resistant cover layer (7) and protection wire netting (8) successively from the back side to the front, and L shaped framework (9) is fixed on above assembly in the rear mask.Fix the terminal box (10) of promising electrical heating net (5) power supply on the rear mask shell.Rear mask back side central authorities are connected to combustion gas input connector (11), are opened on fiber shunting layer (4), are fixed and are sealed by nut (15) and pad (12,13), trim ring (14).After Plastic Gas Pipe (1) delivery of fuel gas arrives fiber shunting layer (4) shunting through combustion gas input connector (11), evenly diffuse to electric heating layer (5) and be heated to burning-point, the oxygen that diffuses in catalyst layer (6) and front air mixes catalytic combustion takes place, release of carbon dioxide and steam give off infrared heat energy.
Platinum-palladium System Catalyst is dispersed in aluminium oxide-ceramic fibre, and the grid wire spacing of grid supporting plate (3) vertically, laterally is respectively 50 and 100mm, and protection wire netting (8) is arranged by spacing 10-15mm by the wire of diameter 1-2mm.
The foregoing description, it is preferred embodiments of the present utility model, be not to limit the utility model practical range,, all should be included in the utility model claim so all equivalences of doing according to the described structure of the utility model claim, feature and principle change or modify.
Claims (1)
1; a kind of catalytic combustion system; it is characterized in that: by rear mask (2); grid supporting plate (3); fiber shunting layer (4); electrical heating silk screen (5); catalyst layer (6); high temperature resistant cover layer (7) and protection wire netting (8) are formed; fix the terminal box (10) of promising electrical heating net (5) power supply on the rear mask shell; rear mask back side central authorities are connected to the combustion gas input connector; be opened on fiber shunting layer (4); after combustion gas is shunted through the fiber shunting layer; evenly diffuse to electric heating layer and be heated to burning-point; the oxygen that diffuses in catalyst layer and front air mixes low-temperature catalytic burning takes place; release of carbon dioxide and steam give off infrared heat energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201436883U CN201407658Y (en) | 2009-04-02 | 2009-04-02 | Catalytic combustion device benefiting quality improvement and high yield of crops in greenhouse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201436883U CN201407658Y (en) | 2009-04-02 | 2009-04-02 | Catalytic combustion device benefiting quality improvement and high yield of crops in greenhouse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201407658Y true CN201407658Y (en) | 2010-02-17 |
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ID=41678592
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201436883U Expired - Fee Related CN201407658Y (en) | 2009-04-02 | 2009-04-02 | Catalytic combustion device benefiting quality improvement and high yield of crops in greenhouse |
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|---|---|
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944013A (en) * | 2012-11-27 | 2013-02-27 | 江苏中靖新能源科技有限公司 | Non-ignition catalyst heating system using hydrogen energy |
| CN103736641A (en) * | 2014-01-13 | 2014-04-23 | 周海波 | Gas-catalysis flameless infrared radiation drying tunnel with modular assembly structure |
| CN103743221A (en) * | 2014-01-13 | 2014-04-23 | 周海波 | Gas-catalysis flameless infrared radiation heating dryer |
| CN103968558A (en) * | 2013-01-31 | 2014-08-06 | 镇江美博红外科技有限公司 | Catalytic fuel gas infrared heater |
| CN109012661A (en) * | 2018-08-20 | 2018-12-18 | 苏州格瑞涂装科技有限公司 | A kind of catalysis cotton material preparation of new catalytic organic gas |
| CN110073863A (en) * | 2019-05-07 | 2019-08-02 | 中科盛火(北京)热能技术有限公司 | A kind of gas fertilizer and heating power combined supply apparatus and its control method |
-
2009
- 2009-04-02 CN CN2009201436883U patent/CN201407658Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944013A (en) * | 2012-11-27 | 2013-02-27 | 江苏中靖新能源科技有限公司 | Non-ignition catalyst heating system using hydrogen energy |
| CN103968558A (en) * | 2013-01-31 | 2014-08-06 | 镇江美博红外科技有限公司 | Catalytic fuel gas infrared heater |
| CN103736641A (en) * | 2014-01-13 | 2014-04-23 | 周海波 | Gas-catalysis flameless infrared radiation drying tunnel with modular assembly structure |
| CN103743221A (en) * | 2014-01-13 | 2014-04-23 | 周海波 | Gas-catalysis flameless infrared radiation heating dryer |
| CN103736641B (en) * | 2014-01-13 | 2018-03-09 | 周海波 | Modularization assembled structure gas catalysis nonflame infra-red radiation dries drying tunnel |
| CN109012661A (en) * | 2018-08-20 | 2018-12-18 | 苏州格瑞涂装科技有限公司 | A kind of catalysis cotton material preparation of new catalytic organic gas |
| CN110073863A (en) * | 2019-05-07 | 2019-08-02 | 中科盛火(北京)热能技术有限公司 | A kind of gas fertilizer and heating power combined supply apparatus and its control method |
| CN110073863B (en) * | 2019-05-07 | 2024-03-26 | 中科盛火(北京)热能技术有限公司 | Gas fertilizer and heating power combined supply device and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100217 Termination date: 20120402 |