EP1250950B1 - Düse zur Verdünnung von Phosphorwasserstoff - Google Patents
Düse zur Verdünnung von Phosphorwasserstoff Download PDFInfo
- Publication number
- EP1250950B1 EP1250950B1 EP02006308A EP02006308A EP1250950B1 EP 1250950 B1 EP1250950 B1 EP 1250950B1 EP 02006308 A EP02006308 A EP 02006308A EP 02006308 A EP02006308 A EP 02006308A EP 1250950 B1 EP1250950 B1 EP 1250950B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- nozzle
- pipe
- air pipe
- nozzle according
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
- B01F25/3124—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow
- B01F25/31242—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow the main flow being injected in the central area of the venturi, creating an aspiration in the circumferential part of the conduit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/10—Mixing gases with gases
Definitions
- the present invention relates to a nozzle for the dilution of hydrogen phosphide (chemical formula PH 3 ), which consists of a tubular air inlet and an annularly arranged gap (annular gap) and / or at least one laterally arranged tubes as a PH 3 inlet, the strength of the The gap opening and / or the tube opening is a maximum of 1/25 of the diameter of the tubular air inlet and / or the distance of the surface of an air steering element from the inside of the tubular air inlet in the region of the PH 3 inlet.
- PH 3 has been used for decades for pest control and for prophylaxis in the protection of stored goods, in particular for food and feed.
- PH 3 forms an easily flammable gas mixture with air, the ignition limit being 1.8% PH 3 concentration. If this value is exceeded, PH 3 tends to self-ignite.
- German Offenlegungsschrift 198 39 385 which describes an effective process for the direct dilution of PH 3 with air, in which the mixture air / PH 3 is carried out under or in the presence of water.
- the present invention discloses an easy to use Handheld device in the form of a nozzle that is easily portable and can be used quickly at any location.
- the nozzle according to the invention was able to mix 90,000 liters of air with PH 3 without problems within one hour, with an air content of 10,000 ppm of PH 3 .
- reaction zone can spread at supersonic speed.
- the present invention is based on the surprising finding that the creation of a laminar flow at PH 3 along the inner wall of a tubular air inlet results in an optimal mixing of air and PH 3 without the risk of ignition below the ignition limit.
- the occurrence of ignition is prevented by the fact that the critical conditions only occur in a very thin layer.
- the PH 3 layer is immediately swept away by a strong air stream and mixed into the air.
- the embodiment of Figure 1 consists of a tube open on both sides, which is identified by the reference number 1.
- This tube has an annular gap 2, which has an annular attachment 3, into which flows in the direction of arrow 4 PH 3 , which then flows at the entry point 5 along the wall of the tube 1.
- air flows at a very high speed into the opening 6 of the tube 1 in the direction of the arrow 6a, the already laminar flow of the PH 3 forming an even thinner layer.
- the outlet opening of the air-PH 3 mixture is identified by reference number 7, the direction of flow of which is 7a.
- the air passed through the pipe has, for example, an overpressure of 350 to 440 mm water column and a speed of 250 to 370 km / h.
- the exit column 2 for the PH 3 should generally not exceed a diameter of 0.2 mm.
- the thickness of the air layer 9 above the PH 3 layer preferably does not exceed the value of 5 mm.
- the nozzle according to the invention can easily be selected from a number of quickly assemble elements to be assembled, which by O-rings are sealed.
- the nozzle can be just as easy preferably made of stainless steel, disassemble, inspect and clean if necessary.
- Figure 3 shows a section through the nozzle according to the invention this tube element.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nozzles (AREA)
- Sampling And Sample Adjustment (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Jet Pumps And Other Pumps (AREA)
- Catching Or Destruction (AREA)
Description
Claims (4)
- Düse zur Verdünnung von Phosphorwasserstoff (chemische Formel PH3) mit Gasen, insbesondere mit Luft,
dadurch gekennzeichnet, dass sie aus einer rohrförmigen Lufteinleitung (6) mit einem ringförmigen Spalt (2) und/oder mit mindestens einem lateral angeordneten Röhrchen (9) als PH3-Einleitung besteht, wobei die Stärke der Spaltöffnung und/oder der Röhrchenöffnung maximal 1 / 25 des Durchmesser der rohrförmigen Lufteinleitung und/oder des Abstands der Oberfläche eines Luftlenkungselements von der Innenseite der rohrförmigen Lufteinleitung im Bereich des PH3 -Eintritts beträgt. - Düse nach Anspruch 1,
dadurch gekennzeichnet, dass in der rohrförmigen Lufteinleitung (6) als Luftlenkungselement ein geschossähnlicher Körper (8) angeordnet ist, dessen Spitze in Richtung der Lufteintrittsöffnung (6) zeigt, wobei der Bereich des größten Durchmessers des Elements (8) im Bereich des PH3 -Eintritts in die rohrförmige Lufteinleitung (6) liegt. - Düse nach Anspruch 1-2,
dadurch gekennzeichnet, dass sie aus Edelstahl besteht. - Düse nach Anspruch 1-3,
dadurch gekennzeichnet, dass sie aus verbindbaren Einzelteilen besteht.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20106613U | 2001-04-17 | ||
DE20106613U DE20106613U1 (de) | 2001-04-17 | 2001-04-17 | Düse zur Verwendung von Phosphorwasserstoff |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1250950A1 EP1250950A1 (de) | 2002-10-23 |
EP1250950B1 true EP1250950B1 (de) | 2004-02-11 |
Family
ID=7955824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02006308A Expired - Lifetime EP1250950B1 (de) | 2001-04-17 | 2002-03-21 | Düse zur Verdünnung von Phosphorwasserstoff |
Country Status (13)
Country | Link |
---|---|
US (1) | US7163161B2 (de) |
EP (1) | EP1250950B1 (de) |
JP (1) | JP4030315B2 (de) |
CN (1) | CN1234463C (de) |
AR (1) | AR032272A1 (de) |
AT (1) | ATE259256T1 (de) |
AU (1) | AU784088B2 (de) |
BR (2) | BR0200276A (de) |
CA (1) | CA2377121C (de) |
DE (2) | DE20106613U1 (de) |
ES (1) | ES2215151T3 (de) |
MX (1) | MXPA02001287A (de) |
ZA (1) | ZA200200563B (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10319582B4 (de) | 2003-04-24 | 2007-03-22 | Lechler Gmbh | Zweistoffsprühdüse |
US20050089408A1 (en) * | 2003-05-09 | 2005-04-28 | Solomon Jason D. | Fluid ejector pumps |
CL2004001316A1 (es) * | 2004-05-28 | 2005-03-18 | Fosfoquim S A | Procedimiento para controlar plagas en fruta sin anar la calidad de la fruta que comprende la exposicion de la fruta a una alta concentracion de fosfina entre 700 a 3500 ppm a una temperatura entre (-1,5 a 15) grados celsius durante un periodo de tie |
JP5240886B2 (ja) * | 2005-06-27 | 2013-07-17 | 国立大学法人 熊本大学 | 微細液滴発生器および微細液滴発生装置、並びに微細液滴発生方法 |
US20110230679A1 (en) * | 2010-03-16 | 2011-09-22 | Dow Global Technologies, Inc. | Reactive Static Mixer |
WO2016135299A1 (en) * | 2015-02-27 | 2016-09-01 | Technip France | Waste heat boiler system, mixing chamber, and method for cooling a process gas |
JPWO2017033747A1 (ja) * | 2015-08-24 | 2017-11-30 | 株式会社村田製作所 | 気体混合装置 |
US20220168695A1 (en) * | 2020-11-27 | 2022-06-02 | Huei Tarng Liou | Venturi Tube |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US272863A (en) * | 1883-02-27 | Hydrocarbon-burner | ||
DE1256200B (de) * | 1961-12-23 | 1967-12-14 | Thyssen Rohrleitungsbau Ges Mi | Duese zum Mischen von Gasen und/oder Fluessigkeiten |
US3371618A (en) * | 1966-02-18 | 1968-03-05 | Chambers John | Pump |
US3721387A (en) * | 1971-06-02 | 1973-03-20 | United Aircraft Corp | Ejector with variable mixing section and primary nozzle areas |
US4095748A (en) * | 1975-07-04 | 1978-06-20 | Kanebo, Ltd. | Apparatus for mixing a cement slurry with a glass fiber |
US4334783A (en) * | 1978-12-21 | 1982-06-15 | Showa Denko Kabushiki Kaisha | Mixing device |
EP0105279B1 (de) * | 1981-11-18 | 1987-04-15 | MOSS, Hans | Blasdüse zum stillen ausfliessen von gas |
US4721562A (en) * | 1984-04-03 | 1988-01-26 | Feldmuele Aktiengesellschaft | Aerating apparatus |
DE3724344A1 (de) * | 1987-07-23 | 1989-02-02 | Huels Chemische Werke Ag | Mischduese zum vermischen zweier gasstroeme |
US4915300A (en) * | 1987-08-20 | 1990-04-10 | John Ryan | High pressure mixing and spray nozzle apparatus and method |
US5014916A (en) * | 1990-04-25 | 1991-05-14 | The Perkin-Elmer Corporation | Angular gas cap for thermal spray gun |
US5242115A (en) * | 1991-04-22 | 1993-09-07 | Fomo Products, Inc. | Apparatus and method for mixing and dispensing and mixing nozzle therefore |
US5403475A (en) * | 1993-01-22 | 1995-04-04 | Allen; Judith L. | Liquid decontamination method |
JPH09510652A (ja) * | 1994-03-25 | 1997-10-28 | シーメンス アクチエンゲゼルシヤフト | 供給・混合組合わせ装置 |
DE19534107A1 (de) * | 1995-09-14 | 1997-03-20 | Wacker Siltronic Halbleitermat | Mischdüse zum Vermischen von zwei oder mehreren Flüssigkeiten |
US5899387A (en) * | 1997-09-19 | 1999-05-04 | Spraying Systems Co. | Air assisted spray system |
DE19839385A1 (de) * | 1998-08-28 | 2000-03-23 | Horn Pedro Miguel | Verfahren und Vorrichtung zur Verdünnung von Phosphorwasserstoff mit Luft ohne Entzündungsgefahr |
-
2001
- 2001-04-17 DE DE20106613U patent/DE20106613U1/de not_active Expired - Lifetime
-
2002
- 2002-01-22 ZA ZA200200563A patent/ZA200200563B/xx unknown
- 2002-01-23 AU AU13550/02A patent/AU784088B2/en not_active Expired
- 2002-01-25 AR ARP020100256A patent/AR032272A1/es active IP Right Grant
- 2002-01-31 BR BR0200276-0A patent/BR0200276A/pt active IP Right Grant
- 2002-01-31 BR BRPI0200276-0A patent/BRPI0200276B1/pt unknown
- 2002-02-05 JP JP2002028130A patent/JP4030315B2/ja not_active Expired - Lifetime
- 2002-02-06 MX MXPA02001287A patent/MXPA02001287A/es active IP Right Grant
- 2002-03-18 CA CA2377121A patent/CA2377121C/en not_active Expired - Lifetime
- 2002-03-21 EP EP02006308A patent/EP1250950B1/de not_active Expired - Lifetime
- 2002-03-21 ES ES02006308T patent/ES2215151T3/es not_active Expired - Lifetime
- 2002-03-21 DE DE50200239T patent/DE50200239D1/de not_active Expired - Lifetime
- 2002-03-21 AT AT02006308T patent/ATE259256T1/de not_active IP Right Cessation
- 2002-04-03 CN CNB021085927A patent/CN1234463C/zh not_active Expired - Lifetime
- 2002-04-09 US US10/118,814 patent/US7163161B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
BR0200276A (pt) | 2003-01-07 |
CN1381315A (zh) | 2002-11-27 |
US20020148913A1 (en) | 2002-10-17 |
AU784088B2 (en) | 2006-02-02 |
CN1234463C (zh) | 2006-01-04 |
CA2377121A1 (en) | 2002-10-17 |
JP4030315B2 (ja) | 2008-01-09 |
ES2215151T3 (es) | 2004-10-01 |
CA2377121C (en) | 2012-10-02 |
ZA200200563B (en) | 2002-07-26 |
DE50200239D1 (de) | 2004-03-18 |
EP1250950A1 (de) | 2002-10-23 |
MXPA02001287A (es) | 2005-11-04 |
ATE259256T1 (de) | 2004-02-15 |
AU1355002A (en) | 2002-10-24 |
AR032272A1 (es) | 2003-10-29 |
DE20106613U1 (de) | 2001-07-12 |
JP2002320882A (ja) | 2002-11-05 |
US7163161B2 (en) | 2007-01-16 |
BRPI0200276B1 (pt) | 2019-06-18 |
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