WO2007147967A2 - Procede et dispositif de desinfection des sols par generation d’air comprime chaud humidifie - Google Patents
Procede et dispositif de desinfection des sols par generation d’air comprime chaud humidifie Download PDFInfo
- Publication number
- WO2007147967A2 WO2007147967A2 PCT/FR2007/001013 FR2007001013W WO2007147967A2 WO 2007147967 A2 WO2007147967 A2 WO 2007147967A2 FR 2007001013 W FR2007001013 W FR 2007001013W WO 2007147967 A2 WO2007147967 A2 WO 2007147967A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- air
- compressed
- temperature
- hot
- soil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G11/00—Sterilising soil by steam
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
- F04B39/062—Cooling by injecting a liquid in the gas to be compressed
Definitions
- the invention relates to a concept of soil remediation and disinfection.
- Pathological organisms such as nematodes, worms, molds and bacterial pathogens in soil are known to cause considerable economic damage to crops.
- the use of hot water and / or water vapor requires important equipment, if the boiler is shipped, it is of limited size and power because of its weight, if the boiler is external it is necessary to transport Steam in pipes on long distance and thus lose many calories. In addition, the boilers are energy-hungry and fuel-intensive. According to this known technique, the vapor temperature introduced into the soil must be substantially at about 100 0 C to allow the destruction of pathological organisms without making the soil sterile.
- the company VERDIVAP is holder of a patent EP 1 479 287 A1 to the content of which we will be able to refer, which describes a soil disinfection device comprising in particular a frame intended to be moved on the ground, teeth intended to penetrate the ground , and an external steam generator connected to the chassis by pipes, this device being in the form of a towed mobile sled, allowing a good homogeneity of diffusion.
- the soil disinfection method according to the invention proposes a light and economical solution and is characterized by the means implemented taken as a whole as separately and more particularly.
- the soil is thus disinfected by injection into the soil of humidified hot air produced by a generator, whether onboard or not, in which the hot air is produced by compression in a volumetric machine, and the compressed hot air is humidified by liquid injection.
- the method according to the invention unlike the teachings of the prior art, produces no steam from water that is heated or that is superheated, but uses ambient air that is heated, then moistened
- the generator according to the invention allows a great adaptability to the conditions of use, and in particular to adjust more or less the output flow and the absolute humidity of the air depending on the state of the soil to be treated and their degree of humidity.
- the generator according to the invention consists of two cylinders of different diameter, one of large diameter in which the atmospheric air is sucked and then compressed in a compression chamber at a pressure and a temperature sufficient to then allow the vaporization quasi instantaneous one dose of liquid, the other cylinder, facing said compression chamber and vaporization, smaller diameter in which the humidified compressed air charge will be partially relaxed to be reduced to the pressure and the temperature of d chosen use.
- the temperature is raised to about 400 ° C and the charge or amount of water introduced into the chamber will be vaporized instantly.
- This charge is then partially relaxed to 8 bar will be approximately at the ideal temperature of soil disinfection at about 100 ° C.
- the partial relaxation produces a work that deduces the energy required to drive the generator and allows significantly improve machine performance.
- means for adjusting the pressure and the outlet temperature of the generator such as adjustable discharge valves are installed on the exhaust system of the machine, the hot and humid compressed air produced by the generator is then injected into the soil at the chosen temperature high enough to destroy the pathological organisms and low enough not to sterilize the soil.
- said compression and vaporization chamber is equipped with a volumetric device such as an adjustable piston making it possible to modify its volume in order to be able to adjust the pressure and the end-of-compression temperature.
- a volumetric device such as an adjustable piston making it possible to modify its volume in order to be able to adjust the pressure and the end-of-compression temperature.
- An electronic device makes it possible to manage, depending on the different parameters, the flow of water to be vaporized.
- the generator according to the invention uses the mobile sled VERDIVAP according to EP 1 479 287 A1 but other modes of injection of air into the ground such as static plates, perforated harrows, perforated needles can be used without changing the principle of the present invention.
- the invention is particularly applicable to the disinfection of agricultural lands in depth and / or on the surface to obtain a fungicidal and nematicidal herbicidal effect.
- FIG. 1 represents, schematically in longitudinal section, an embodiment of the wet hot compressed air generator according to the invention in its suction phase and partial relaxation
- FIG. 2 shows, schematically in longitudinal section, the same generator in its compression and exhaust phase of the humidified hot compressed air towards the injection device into the ground.
- FIG. 3 shows, schematically in longitudinal section, the generator according to the invention in the thin phase of compression / start of water injection.
- FIG. 1 shows, schematically in longitudinal section, an embodiment of the humid hot air generator, in which the suction and compression cylinder 1 of the atmospheric air in which a piston 2 connected by a connecting rod 3 to the crank pin 4 of a crankshaft 5 rotatably mounted on its axis XX 'and the partial expansion cylinder 6 in which slides a piston 7 connected by a connecting rod 8 to the same crankpin 4 of the crankshaft 5 journalled on its axis XX' .
- crankshaft 5 is rotated by a motor not shown here and drives with its crankpin 4, the pistons 2 and 7 began their downward stroke, Figure 1, the inlet valve 10 is then open and atmospheric air to ambient temperature is sucked into the cylinder 1. After crossing the bottom dead center, the pistons 2 and 7 begin their rising stroke - Figure 2 - and the piston 2 compresses the air admitted to the previous cycle in the chamber 11 through the conduit 13, the shutter 14 having been opened and having communicated the top of the piston 2 and the chamber 11.
- FIG. 3 Substantially before the top dead center, FIG. 3, the shutter 14 is closed and the electronically controlled water injector 15 injects into the chamber 11 a dose of water which, under the effect of the high temperature due to the compression vaporizes instantly.
- pistons 2 and 7 After crossing the top dead center, pistons 2 and 7 begin a new downstroke- Figure 1 and the wet air pressure contained in the chamber 11 partially relaxes in the cylinder by pushing the piston and producing a work, it should be noted that the diameter of the piston 7 is calculated so that the expansion of the pressure load contained in the chamber 11 corresponds substantially to the pressure and the chosen operating temperature.
- the pistons 1 and 2 After crossing the bottom dead center, the pistons 1 and 2 begin their upward stroke and the exhaust valve 17 is opened to allow the discharge of the hot and humid compressed air at the chosen temperature of use which is then directed to the device intended to inject it into the ground.
- the device described above uses a conventional crank rod system with well-known piston engines, it is given by way of example, and many volumetric systems can be used to obtain the same thermodynamic cycle and the same results without changing it. the invention which has just been described.
- the invention is not limited to the embodiments described and shown: the materials, the control means, the devices described may vary within the limit of equivalents, to produce the same results, the number of cylinders of the generator, the means introduction of the hot and humid compressed air into the soil can vary without changing the invention which has just been described.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Catching Or Destruction (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
Description
Claims
Priority Applications (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009515914A JP2009540815A (ja) | 2006-06-19 | 2007-06-19 | 湿った熱い圧縮空気を生成することにより土壌を殺菌するための方法並びに装置 |
| CA2654692A CA2654692C (fr) | 2006-06-19 | 2007-06-19 | Procede et dispositif de desinfection des sols par generation d'air comprime chaud humidifie |
| KR1020097000520A KR101354229B1 (ko) | 2006-06-19 | 2007-06-19 | 습윤한 고온 압축 공기를 생성하여 지면을 살균하는 방법 및 장치 |
| AP2008004696A AP2662A (en) | 2006-06-19 | 2007-06-19 | Method and device for disinfecting grounds by generating humidified hot compressed air |
| AT07788904T ATE458400T1 (de) | 2006-06-19 | 2007-06-19 | Verfahren und vorrichtung zur desinfektion von böden durch erzeugung feuchter und heisser druckluft |
| CN2007800227545A CN101472466B (zh) | 2006-06-19 | 2007-06-19 | 用于通过产生潮湿的热压缩空气而消毒土壤的方法和设备 |
| DE602007004981T DE602007004981D1 (de) | 2006-06-19 | 2007-06-19 | Verfahren und vorrichtung zur desinfektion von böd |
| EA200970030A EA200970030A1 (ru) | 2006-06-19 | 2007-06-19 | Способ и устройство дезинфекции почв путем генерации сжатого увлажненного горячего воздуха |
| US12/305,837 US8372337B2 (en) | 2006-06-19 | 2007-06-19 | Method and device for disinfecting grounds by generating humidified hot compressed air |
| EP07788904A EP2028923B1 (fr) | 2006-06-19 | 2007-06-19 | Procede et dispositif de desinfection des sols par generation d'air comprime chaud humidifie |
| TNP2008000520A TNSN08520A1 (fr) | 2006-06-19 | 2008-12-16 | Procede et dispositif de disinfection des sols par generation d'air comprime chaud humidifie |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0605413A FR2902285A1 (fr) | 2006-06-19 | 2006-06-19 | Procede et dispositif de desinfection des sols par generation d'air comprime chaud humidifie |
| FR0605413 | 2006-06-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2007147967A2 true WO2007147967A2 (fr) | 2007-12-27 |
| WO2007147967A3 WO2007147967A3 (fr) | 2008-02-21 |
Family
ID=37951810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2007/001013 Ceased WO2007147967A2 (fr) | 2006-06-19 | 2007-06-19 | Procede et dispositif de desinfection des sols par generation d’air comprime chaud humidifie |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US8372337B2 (fr) |
| EP (1) | EP2028923B1 (fr) |
| JP (1) | JP2009540815A (fr) |
| KR (1) | KR101354229B1 (fr) |
| CN (1) | CN101472466B (fr) |
| AP (1) | AP2662A (fr) |
| AT (1) | ATE458400T1 (fr) |
| CA (1) | CA2654692C (fr) |
| DE (1) | DE602007004981D1 (fr) |
| EA (1) | EA200970030A1 (fr) |
| FR (1) | FR2902285A1 (fr) |
| MA (1) | MA30509B1 (fr) |
| TN (1) | TNSN08520A1 (fr) |
| WO (1) | WO2007147967A2 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2963870B1 (fr) * | 2010-08-17 | 2012-08-24 | Robert Hernandez | Machine pour la sterilisation de la couche arable du sol |
| CN103155829B (zh) * | 2013-04-08 | 2015-05-20 | 莆田市荔城区农业局 | 覆土管道式蒸汽消毒方法及其消毒装置 |
| CN104488612A (zh) * | 2014-11-18 | 2015-04-08 | 北京农业信息技术研究中心 | 一种节能育苗地床土壤消毒系统及方法 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2383601A1 (fr) | 1977-03-18 | 1978-10-13 | Geffe Thomas | Sterilisateur a vapeur mobile |
| US5259327A (en) | 1993-02-08 | 1993-11-09 | Aqua Heat Inc. | Process for killing soil pathogens |
| EP1479287A1 (fr) | 2003-05-13 | 2004-11-24 | VERDIANI, Michel | Dispositif de sterilisation des sols |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3507258A (en) * | 1968-02-01 | 1970-04-21 | Richard J Smith | Vapor generator control |
| US3704079A (en) * | 1970-09-08 | 1972-11-28 | Martin John Berlyn | Air compressors |
| US4646782A (en) * | 1984-10-22 | 1987-03-03 | Westinghouse Electric Corp. | Surge suppressing check valve |
| US5050340A (en) * | 1990-05-14 | 1991-09-24 | Seifert L Eugene | Pneumatic soil penetrator and chemical applicator assembly |
| US5231821A (en) * | 1991-07-15 | 1993-08-03 | Firey Joseph C | Cyclic char fuel oxidation reactors with cross flow primary reactors |
| US5487346A (en) * | 1994-01-10 | 1996-01-30 | Taylor; Donald K. | Soil injection system |
| NZ289934A (en) * | 1994-07-28 | 1997-04-24 | Darren Charles Adey | Weed control using heated air mixed with moisture |
| AU3540195A (en) * | 1994-08-29 | 1996-03-27 | Anju Nelson | Combustion and steam engine system and methods |
| US5848492A (en) * | 1996-05-03 | 1998-12-15 | Brown; Claude E. | Agricultural methods with superheated steam |
| US6279550B1 (en) * | 1996-07-17 | 2001-08-28 | Clyde C. Bryant | Internal combustion engine |
| US20020003988A1 (en) * | 1997-05-20 | 2002-01-10 | Thomas Mikus | Remediation method |
| US6004103A (en) * | 1997-07-01 | 1999-12-21 | General Electric Company | Air compressor system |
| KR100258894B1 (ko) | 1998-02-18 | 2000-06-15 | 박경순 | 농업용 난방 및 가습기 겸용 스팀 살균 장치 |
| US6173527B1 (en) * | 1998-03-13 | 2001-01-16 | Soilzone, Inc. | Method for treatment of top soil of a field with ozone gas to increase growth of plants |
| US6647204B1 (en) * | 1998-03-18 | 2003-11-11 | Harwil Corporation | Portable steam generating system |
| US7469662B2 (en) * | 1999-03-23 | 2008-12-30 | Thomas Engine Company, Llc | Homogeneous charge compression ignition engine with combustion phasing |
| GB0027102D0 (en) * | 2000-11-03 | 2000-12-20 | Sisis Equipment Macclesfield | Ground injection apparatus |
| FR2862349B1 (fr) * | 2003-11-17 | 2006-02-17 | Mdi Motor Dev Internat Sa | Moteur a chambre active mono et/ou bi energie a air comprime et/ou energie additionnelle et son cycle thermodynamique |
| US20050143259A1 (en) * | 2003-12-29 | 2005-06-30 | Newson Richard J. | Thermal weed, fungal, insecticidal and sterilisation method |
| US20070227418A1 (en) * | 2006-03-30 | 2007-10-04 | Polfer Jeffrey J | Apparatus for eliminating undesirable vegetation |
-
2006
- 2006-06-19 FR FR0605413A patent/FR2902285A1/fr not_active Withdrawn
-
2007
- 2007-06-19 EP EP07788904A patent/EP2028923B1/fr active Active
- 2007-06-19 WO PCT/FR2007/001013 patent/WO2007147967A2/fr not_active Ceased
- 2007-06-19 EA EA200970030A patent/EA200970030A1/ru unknown
- 2007-06-19 AP AP2008004696A patent/AP2662A/xx active
- 2007-06-19 DE DE602007004981T patent/DE602007004981D1/de not_active Expired - Fee Related
- 2007-06-19 AT AT07788904T patent/ATE458400T1/de not_active IP Right Cessation
- 2007-06-19 JP JP2009515914A patent/JP2009540815A/ja active Pending
- 2007-06-19 US US12/305,837 patent/US8372337B2/en not_active Expired - Fee Related
- 2007-06-19 CN CN2007800227545A patent/CN101472466B/zh not_active Expired - Fee Related
- 2007-06-19 KR KR1020097000520A patent/KR101354229B1/ko not_active Expired - Fee Related
- 2007-06-19 CA CA2654692A patent/CA2654692C/fr not_active Expired - Fee Related
-
2008
- 2008-12-12 MA MA31467A patent/MA30509B1/fr unknown
- 2008-12-16 TN TNP2008000520A patent/TNSN08520A1/fr unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2383601A1 (fr) | 1977-03-18 | 1978-10-13 | Geffe Thomas | Sterilisateur a vapeur mobile |
| US5259327A (en) | 1993-02-08 | 1993-11-09 | Aqua Heat Inc. | Process for killing soil pathogens |
| EP1479287A1 (fr) | 2003-05-13 | 2004-11-24 | VERDIANI, Michel | Dispositif de sterilisation des sols |
Also Published As
| Publication number | Publication date |
|---|---|
| AP2008004696A0 (en) | 2008-12-31 |
| WO2007147967A3 (fr) | 2008-02-21 |
| EP2028923B1 (fr) | 2010-02-24 |
| CN101472466B (zh) | 2012-07-04 |
| DE602007004981D1 (de) | 2010-04-08 |
| ATE458400T1 (de) | 2010-03-15 |
| JP2009540815A (ja) | 2009-11-26 |
| KR20090043492A (ko) | 2009-05-06 |
| US8372337B2 (en) | 2013-02-12 |
| MA30509B1 (fr) | 2009-06-01 |
| EP2028923A2 (fr) | 2009-03-04 |
| CA2654692A1 (fr) | 2007-12-27 |
| CN101472466A (zh) | 2009-07-01 |
| EA200970030A1 (ru) | 2009-04-28 |
| CA2654692C (fr) | 2015-01-06 |
| AP2662A (en) | 2013-05-16 |
| FR2902285A1 (fr) | 2007-12-21 |
| KR101354229B1 (ko) | 2014-01-22 |
| US20100008823A1 (en) | 2010-01-14 |
| TNSN08520A1 (fr) | 2010-04-14 |
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