CN202398259U - Preventing and controlling system of pests in closed space by using smoke gas of biomass power plant - Google Patents
Preventing and controlling system of pests in closed space by using smoke gas of biomass power plant Download PDFInfo
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- CN202398259U CN202398259U CN2012200026436U CN201220002643U CN202398259U CN 202398259 U CN202398259 U CN 202398259U CN 2012200026436 U CN2012200026436 U CN 2012200026436U CN 201220002643 U CN201220002643 U CN 201220002643U CN 202398259 U CN202398259 U CN 202398259U
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- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
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Abstract
The utility model relates to a preventing and controlling system of pests in a closed space by using smoke gas of a biomass power plant. The preventing and controlling system comprises a smoke gas treatment device, a treatment smoke gas storing tank and a control unit; a discharge pipeline of the smoke gas treatment device is connected with the treatment smoke gas storing tank; the treatment smoke gas storing tank is connected with a closed space; a first adjusting valve is arranged on a gas inlet pipeline between the treatment smoke gas storing tank and the closed space, the inner part of the closed space is provided with a first pressure monitoring sensor ad a carbon dioxide concentration monitoring sensor; a first air release valve is arranged on the closed space, the control unit is connected with the first pressure monitoring sensor and the carbon dioxide concentration monitoring sensor respectively for receiving the detecting signal of the sensors and is connected with the first adjusting valve and the first air release valve in order to correspondingly control the opening degree of the first adjusting valve and the first air release valve and regulate the air pressure in the closed space and the concentration of carbon dioxide to the set scale. With adoption of the preventing and controlling system of pests in the closed space by using the smoke gas of the biomass power plant, automatic control can be realized; and the preventing and controlling system is simple in operation, is convenient to popularize and apply, can be applied to a preventing and controlling method of pests in the closed space and is good in the circular economy benefit.
Description
Technical field
The utility model relates to agricultural and eco-friendly power source field, relates in particular to a kind of confined space PCO system that utilizes the biomass electric power plant flue gas.
Background technology
By 2010, the heliogreenhouse cultivated area of China surpassed 5,000,000 mu, and the plastic greenhouse cultivation area is above 1,000 ten thousand mu.Greenhouse crops often receives the invasion of various disease and pests in growth course, like various fungies, bacterial disease, reach insects such as various pierce-suck types, moth class, beetle, and wherein fungus disease and pierce-suck type, moth class pest endanger the most serious.And, be that popular time and the degree of master's harmful organism also all has raising in various degree with disease, insect pest along with greatly developing of China greenhouse and booth.And hot and humid ecological environment can make that also many insects and germ need not survive the winter in greenhouse and the booth in greenhouse and booth, and can popular harm of anniversary, spreads fast; Harm is heavy; Difficulty of prevention and cure strengthens, and is improper if prophylactico-therapeutic measures is taked, and very easily causes heavy losses.
Biological control at present and physical control measure effect are also not obvious, so the main means of prevention of harmful organism still depends critically upon chemical prevention in the confined space.And the long-term a large amount of uses of chemical pesticide cause not only that disease and pest is drug-fast to be increased sharply, and also cause environmental pollution.The cumulants of harmful organism brood body in confined space such as the ovum of disease spore, mycelia and insect pest, pupa, mature larva also significantly rise simultaneously.
Raising along with economic development and living standards of the people; Pollution-free food has become the numerous common people basic demand of living; The development of green agriculture and organic agriculture also receives government day by day and payes attention to the favor with the consumer, and wherein very important controlling unit promptly is various people's height poison, the limiting the quantity of of chemical pesticide of poisoning to be used even forbidding.Organic agriculture clearly forbid coming into operation various manual works synthetic chemical fertilizer and agricultural chemicals.Thereby develop a kind of environmental protection, the PCO method is imperative, significant in the confined space efficiently.
Research about the carbon dioxide prevention and elimination of disease and pests is of long duration, and can trace back to for 20 beginnings of the century the earliest.Discussion was just done for the possibility of in extensive grain reservation, using carbon dioxide to carry out control of insect by Australia in 1918.The Wang Ting chief utilized carbon dioxide control Callosobruchus chinensis, the adult death rate 100% after 7 days in 1985; The marihuana cutting edge of a knife or a sword sample of saprophage mite has been given birth in processing, and prevention effect is 100% after 7 days.Gerard Nicolas has summarized the acute and chronic influence (Immediate and latent effects of carbon dioxide on insects. Annual review of entomology. 1989. 34.97-116s) of carbon dioxide to various insects.Groton bug (
Blattella germanica) place the carbon dioxide paralysis of 40% volumetric concentration dead, through physiological and biochemical analysis, its corpse body fluid severe acidification, most enzymatic activitys are suppressed, and find poisonous carbon dioxide compound, directly cause its death.The carbon dioxide of low concentration can loosen the closure of locust valve muscle, makes its valve be in the continuous openness state, causes the interior moisture of its body to scatter and disappear in a large number, and body fluid electromotive force current potential significantly raises, and the Na/K ionic equilibrium is destroyed, and human body has a convulsion, and is dead then.
Above-mentioned experimental study shows: the carbon dioxide prevention and elimination of disease and pests has had certain progress, and up to the present, is not found to the report that any relevant carbon dioxide prevention and elimination of disease and pests meeting is developed immunity to drugs; Yet above-mentioned research all is in the laboratory research stage; Do not have clear and definite use operating instruction, and adopt source of the gas to be the pure article of carbon dioxide, with high costs; Can't be used for actual production, apply.
Biomass electric power plant is to utilize living beings and excess air in boiler, to burn, the hot flue gas of generation and the heat exchange section heat exchange of boiler, and the generation high temperature and high pressure steam expands to do work in steam turbine and sends electric energy.Biomass electric power plant institute biomass burning is mainly derived from agriculture and forestry organic waste materials such as wheat stalk, maize straw, straw rice husk, cotton stalk, forestry felling and industrial wood waste, so characteristics such as the amount of having is big, distribution is extensive, recyclability, low pollution, the nearly discharging of no carbon dioxide.Because the difference of the living beings kind of different biomass electric power plant burnings, each components contents is slightly variant in the flue gas, and the volumetric concentration of carbon dioxide is about 14%, SO in the general biomass electric power plant discharging flue gas
2Content Deng pollutant is 50ppm.Compare SO in the biomass electric power plant flue gas with discharging flue gases such as thermal power plants
2Content Deng pollutant has reduced more than 85%, can directly discharge.
Summary of the invention
The utility model is the existing research situation that combines the carbon dioxide Pesticidal and sterilizing, and is based on the comprehensive utilization of biomass electric power plant flue gas, and a kind of closed cells PCO system that utilizes the biomass electric power plant flue gas is provided.This prevents and treats system can realize automation control, easy and simple to handle; Be applicable to the control of confined space harmful organism, efficiency of cycling economy is good, and is easy to utilize.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is:
Utilize the confined space PCO system of biomass electric power plant flue gas; Comprise flue gas processing device, smoke treatment air accumulator, control module; The discharging pipeline of said flue gas processing device links to each other with the smoke treatment air accumulator; The smoke treatment air accumulator links to each other with confined space; Air inlet pipeline between smoke treatment air accumulator and the confined space is provided with first control valve, and said confined space inside is provided with the first pressure monitoring sensor and gas concentration lwevel monitoring sensor, and said confined space top is provided with first atmospheric valve; Said control module links to each other with the gas concentration lwevel monitoring sensor with the first pressure monitoring sensor respectively; Receive its detection signal, and link to each other with first atmospheric valve, the aperture of corresponding control first control valve and first atmospheric valve and regulate and control air pressure and concentration of carbon dioxide in the confined space to setting range with first control valve.
Press such scheme, described flue gas processing device comprises gas and water separator, gas compressing apparatus and pressure-swing absorption apparatus, and described pressure-swing absorption apparatus is many transformation absorption; Be made up of side by side the single tower of a plurality of absorption, each adsorbs and is filled with specificity carbon dioxide selected adsorbent in single tower, and each adsorbs single top of tower and is provided with second atmospheric valve; The bottom is set up two arms separately, and as each feed-inputing branched pipe and discharging arm that adsorbs single tower, each feed-inputing branched pipe is provided with the charging control valve respectively; And the composition charging main pipe rail that is connected; Each discharging arm is provided with the discharging control valve, and the composition discharge header pipe road that is connected, and the outlet side of said gas and water separator links to each other with gas compressing apparatus; Gas compressing apparatus links to each other with the charging main pipe rail of pressure-swing absorption apparatus, and the discharge header pipe road of pressure-swing absorption apparatus links to each other with the smoke treatment air accumulator.
Concrete transformation adsorption treatment step is: adsorb under the state that single tower intake valve and second atmospheric valve all open, feed the biomass electric power plant flue gas, the biomass electric power plant flue gas gets into the single tower of a plurality of absorption that is in adsorbed state simultaneously at each; From bottom to top through adsorbent bed, exhaust gas emptying is when being adsorbed the flue gas forward position and exporting near adsorption bed; Close the intake valve and second atmospheric valve of pressure-swing absorption apparatus, stop ventilation, make it stop absorption; Open bleeder valve, make CO
2Being disposed to the smoke treatment air accumulator against the absorption direction after the desorb stores for future use; After the single tower internal pressure of absorption drops to normal pressure, feed the biomass electric power plant flue gas and purge, make adsorbent obtain holomorphosis; Sweep gas emptying boosts to adsorptive pressure afterwards gradually and begins next sorption cycle process.
Press such scheme; Be provided with the second pressure monitoring sensor in the said smoke treatment air accumulator; Said smoke treatment air accumulator top is provided with second control valve, and described control module links to each other with the second pressure monitoring sensor respectively, receives its detection signal; And link to each other with second control valve, the outlet pressure of corresponding control smoke treatment air accumulator is to setting pressure.
Press such scheme, also be provided with temperature monitoring sensor in the described confined space, the temperature in the monitoring confined space that links to each other with control module.
Press such scheme, described confined space ventilates to holding and links to each other with air-introduced machine.
The have application process of above-mentioned closed cells PCO system in the closed cells PCO is:
The biomass electric power plant discharged flue gas is separated through gas and water separator, send into pressure-swing absorption apparatus through gas compressing apparatus then, handle, concrete processing procedure does,
Adsorb under the state that single tower intake valve and second atmospheric valve all open, feed the biomass electric power plant flue gas, the biomass electric power plant flue gas gets into the single tower of a plurality of absorption that is in adsorbed state simultaneously at each; From bottom to top through adsorbent bed, exhaust gas emptying is when being adsorbed the flue gas forward position and exporting near adsorption bed; Close the intake valve and second atmospheric valve of pressure-swing absorption apparatus, stop ventilation, make it stop absorption; Open bleeder valve, make CO
2Being disposed to the smoke treatment air accumulator against the absorption direction after the desorb stores for future use; After the single tower internal pressure of absorption drops to normal pressure, feed the biomass electric power plant flue gas and purge, make adsorbent obtain holomorphosis; Sweep gas emptying boosts to adsorptive pressure afterwards gradually and begins next sorption cycle process.Biomass electric power plant flue gas after will needs will handling according to technology is sent in confined space such as greenhouse or the booth by the smoke treatment air accumulator; Outlet pressure by the corresponding control smoke treatment of control module air accumulator promptly gets into the smoke treatment pressure in the confined space, gas concentration lwevel and the pressure in the warmhouse booth, and monitoring in the warmhouse booth temperature and realize effective control of closed cells harmful organism.In the process of preventing and treating, can realize ventilating fast through air-introduced machine if needed.
The beneficial effect of the utility model:
The confined space PCO system that utilizes the biomass electric power plant flue gas that the utility model provides can realize automation control, and is easy and simple to handle, easy to utilize; Be applied to preventing and treating in the technology of confined space harmful organism, efficiency of cycling economy is good.
Description of drawings
Fig. 1 utilizes the closed cells PCO system schematic of biomass electric power plant flue gas for the utility model.
Among the figure: 1 moisture trap, 2 compressors, 3 pressure-swing absorption apparatus, 4 smoke treatment air accumulators, 5 confined spaces; 6 control modules, 7 charging control valves, 8 discharging control valves, 9 second atmospheric valves; 10 second control valves, 11 second pressure monitoring sensors, 12 air inlet adjustment valves, 13 first pressure monitoring sensors; 14 gas concentration lwevel monitoring sensors, 15 temperature monitoring sensors, 16 first atmospheric valves, 17 air-introduced machines.
The specific embodiment
Below in conjunction with embodiment the summary of the invention of the utility model is explained further, but the utility model is not limited thereto.
Utilize the confined space PCO system of biomass electric power plant flue gas; Comprise moisture trap (1), compressor (2), pressure-swing absorption apparatus (3), smoke treatment air accumulator (4), control module (6), described pressure-swing absorption apparatus is made up of 4 single towers of absorption side by side, and each adsorbs and is filled with specificity carbon dioxide selected adsorbent molecular sieve in single tower; Each adsorbs single top of tower and is provided with second atmospheric valve (9); The bottom is set up two arms separately, as each feed-inputing branched pipe and discharging arm that adsorbs single tower, is the threeway tubulose respectively; Each feed-inputing branched pipe is provided with charging control valve (7); And the composition charging main pipe rail that is connected, each discharging arm is provided with discharging control valve (8), and the composition discharge header pipe road that is connected; The outlet side of said moisture trap (1) links to each other with compressor (2); Compressor links to each other with the charging main pipe rail of pressure-swing absorption apparatus (3), and the discharge header pipe road of pressure-swing absorption apparatus links to each other with smoke treatment air accumulator (4), and the smoke treatment air accumulator links to each other with confined space (5); Air inlet pipeline between smoke treatment air accumulator and the confined space is provided with first control valve (12); Said confined space inner and upper is provided with the first pressure monitoring sensor (13) and gas concentration lwevel monitoring sensor (14), and said confined space top is provided with first atmospheric valve, and said control module (6) links to each other with the gas concentration lwevel monitoring sensor with the first pressure monitoring sensor respectively; Receive its detection signal; And link to each other the aperture of corresponding control first control valve and first atmospheric valve and regulate and control air pressure and concentration of carbon dioxide to the setting range in the confined space, the said confined space end air inducing that links to each other with air-introduced machine (17) that ventilates with first atmospheric valve with first control valve.Be provided with the second pressure monitoring sensor (11) and second control valve (10) in the described smoke treatment air accumulator; Described control module links to each other with the second pressure monitoring sensor respectively; Receive its detection signal; And link to each other with second control valve, the outlet pressure of corresponding control flue gas air accumulator promptly gets into smoke treatment pressure in the confined space to setting pressure; The top also is provided with temperature monitoring sensor (15) in the described confined space, links to each other with control module, with the temperature in the monitoring confined space; Described confined space should be the greenhouse mutually.
Below the concrete biological control instance of this PCO system in the chamber planting cabbage that combine combine explanation.
Concrete test method:
Experimental plot piece: the comparatively serious experimental plot piece of the historical generation of diamondback moth.
Trial crops: cabbage, chamber planting.
Respectively trial crops is carried out flue gas and handle, make the flue gas processed group; Carry out chemical prevention and handle, do the control treatment group; Alternative is got a fritter experimental plot piece, does not do any anti-harm reason, makes the blank group.Adopt following formula to calculate prevention and control of plant diseases, pest control rate:
Control of insect rate (%)=[1-(borer population of borer population/blank group)] * 100;
Disease control rate (%)=[1-(disease index of disease index/blank group)] * 100;
The flue gas processed group:
Adopt as above confined space PCO system, the temperature that biomass electric power plant is discharged is 140 ℃, CO
2Content is that 14% flue gas separates through moisture trap, sends into pressure-swing absorption apparatus through compressor then, handles; Concrete processing procedure does, adsorbs under the state that single tower inlet valve and second atmospheric valve all open at each, feeds the biomass electric power plant flue gas; The biomass electric power plant flue gas gets into four single towers of absorption that are in adsorbed state simultaneously, from bottom to top through adsorbent bed, and exhaust gas emptying; When being adsorbed the flue gas forward position and exporting near adsorption bed, close the inlet valve and second atmospheric valve of this pressure-swing absorption apparatus, stop ventilation; Make it stop absorption, open bleeder valve, make to be prone to absorbed component CO
2Against the flue gas air accumulator that adsorbs after direction is disposed to processing, obtaining the carbon dioxide volumetric concentration is the smoke treatment more than 96%, stores for future use after the desorb; After pressure drops to normal pressure; Feed the biomass electric power plant flue gas and purge, adsorbent obtains holomorphosis, sweep gas emptying; Afterwards, boost to adsorptive pressure gradually and can begin next sorption cycle process;
Adopt the outlet pressure in the second pressure monitoring sensor monitoring flue gas process tank, and control to adjust the aperture of second control valve by control module, the smoke treatment pressure that the smoke treatment outlet pressure of flue gas air accumulator is promptly got in the confined space is controlled to be 0.35MPa; Feed and do not plant cabbage, be in the booth of vexed canopy phase; Adopt the first pressure monitoring sensor and gas concentration lwevel sensor to detect pressure and concentration of carbon dioxide in the booth simultaneously, and control to adjust the aperture of first control valve and first atmospheric valve by control module, the pressure in the control booth is to 0.120MPa (absolute pressure); The volumetric concentration of carbon dioxide is 80%; The temperature of temperature monitoring sensor monitoring booth is 65 ℃, keeps 8 days, stops ventilation; Open confined space ventilates to holding and ventilates; Make the interior carbon dioxide volumetric concentration of booth return to normal condition (0.03%), temperature, generally need ventilation 1-3 days, can use air-introduced machine to realize ventilating fast when being necessary to normal temperature; Plant cabbage then; Rosette state in the cabbage growth course and heading stage; Flue gas after handling in the flue gas air accumulator is continued feeding carry out the interval reprocessing, adopt the first pressure monitoring sensor and gas concentration lwevel sensor to detect pressure and concentration of carbon dioxide in the booth simultaneously, and control to adjust the aperture of first control valve and first atmospheric valve by control module; Make the interior gas pressure of confined space reach 0.115Mpa (absolute pressure); The carbon dioxide volumetric concentration reaches 80%, and the temperature of temperature monitoring sensor monitoring booth is 25 ℃, continues to stop after 15 minutes ventilation at every turn and ventilate to make booth return to normal barometric pressure; And the carbon dioxide volumetric concentration is reduced to below 5%, and interval reprocessing like this in 5 hours is 10 times again.
Control treatment group: the plain 1000 times of liquid of seedling spraying Dipel 1 time, 1000 times of liquid of AVM 2 times; Rosette state sprays 1000 times of 5% flufenoxurons 1 time; Heading stage sprays 25% go out 800 times of liquid of young urea 1 time.
Blank group: do not do any anti-harm reason.
Cabbage harvest time, the chessboard method 20 strain cabbages of taking a sample from above three groups of processed group, investigation diamondback moth larvae quantity is calculated the control of insect rate, sees table 1.
Claims (4)
1. utilize the confined space PCO system of biomass electric power plant flue gas; It is characterized in that: comprise flue gas processing device, smoke treatment air accumulator, control module; The discharging pipeline of said flue gas processing device links to each other with the smoke treatment air accumulator; The smoke treatment air accumulator links to each other with confined space; Air inlet pipeline between smoke treatment air accumulator and the confined space is provided with first control valve, and said confined space inside is provided with the first pressure monitoring sensor and gas concentration lwevel monitoring sensor, and said confined space top is provided with first atmospheric valve; Said control module links to each other with the gas concentration lwevel monitoring sensor with the first pressure monitoring sensor respectively; Receive its detection signal, and link to each other with first atmospheric valve, the aperture of corresponding control first control valve and first atmospheric valve and regulate and control air pressure and concentration of carbon dioxide in the confined space to setting range with first control valve.
2. the confined space PCO system that utilizes the biomass electric power plant flue gas according to claim 1, it is characterized in that: described flue gas processing device comprises gas and water separator, gas compressing apparatus and pressure-swing absorption apparatus, described pressure-swing absorption apparatus is many transformation absorption; Form side by side by the single tower of a plurality of absorption; Each adsorbs and is filled with specificity carbon dioxide selected adsorbent in single tower, and each adsorbs single top of tower and is provided with second atmospheric valve, and the bottom is set up two arms separately; The feed-inputing branched pipe and the discharging arm that adsorb single tower respectively as each; Each feed-inputing branched pipe is provided with the charging control valve, and the composition charging main pipe rail that is connected, and each discharging arm is provided with the discharging control valve; And the composition discharge header pipe road that is connected; The outlet side of said gas and water separator links to each other with gas compressing apparatus, and gas compressing apparatus links to each other with the charging main pipe rail of pressure-swing absorption apparatus, and the discharge header pipe road of pressure-swing absorption apparatus links to each other with the smoke treatment air accumulator.
3. the confined space PCO system that utilizes the biomass electric power plant flue gas according to claim 1; It is characterized in that: be provided with the second pressure monitoring sensor in the said smoke treatment air accumulator; Said smoke treatment air accumulator top is provided with second control valve, and described control module links to each other with the second pressure monitoring sensor respectively, receives its detection signal; And link to each other with second control valve, the outlet pressure of corresponding control smoke treatment air accumulator is to setting pressure.
4. the confined space PCO system that utilizes the biomass electric power plant flue gas according to claim 1 is characterized in that: also be provided with temperature monitoring sensor in the described confined space, the temperature in the monitoring confined space that links to each other with control module.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527189A (en) * | 2012-01-05 | 2012-07-04 | 武汉凯迪工程技术研究总院有限公司 | Method and system for utilizing smoke of biomass power plant to prevent and treat pests in airtight space |
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2012
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527189A (en) * | 2012-01-05 | 2012-07-04 | 武汉凯迪工程技术研究总院有限公司 | Method and system for utilizing smoke of biomass power plant to prevent and treat pests in airtight space |
| WO2013102415A1 (en) * | 2012-01-05 | 2013-07-11 | 中盈长江国际新能源投资有限公司 | Method and system for preventing and treating pests by using smoke from biomass power plant in sealed space |
| CN102527189B (en) * | 2012-01-05 | 2014-04-30 | 武汉凯迪工程技术研究总院有限公司 | Method and system for utilizing smoke of biomass power plant to prevent and treat pests in airtight space |
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