EP0165278A1 - Procede pour eliminer le brouillard de l'atmosphere. - Google Patents

Procede pour eliminer le brouillard de l'atmosphere.

Info

Publication number
EP0165278A1
EP0165278A1 EP85900101A EP85900101A EP0165278A1 EP 0165278 A1 EP0165278 A1 EP 0165278A1 EP 85900101 A EP85900101 A EP 85900101A EP 85900101 A EP85900101 A EP 85900101A EP 0165278 A1 EP0165278 A1 EP 0165278A1
Authority
EP
European Patent Office
Prior art keywords
substance
air
area
fog
water
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.)
Granted
Application number
EP85900101A
Other languages
German (de)
English (en)
Other versions
EP0165278B1 (fr
Inventor
Zbigniew Boguslawski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT85900101T priority Critical patent/ATE66710T1/de
Publication of EP0165278A1 publication Critical patent/EP0165278A1/fr
Application granted granted Critical
Publication of EP0165278B1 publication Critical patent/EP0165278B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H13/00—Dispersing or preventing fog in general, e.g. on roads, on airfields

Definitions

  • the main patent (application) P 32 47 607.8 relates to a process for eliminating mist from the atmosphere by spraying a reagent into the atmosphere clouded by mist, in which the treatment is carried out by spraying a substance, preferably calcium carbide in fine distribution, with the water droplets forming the fog cloud split off a gaseous reaction product under exothermic reaction, the substance to ensure a longer-term freedom from fog in one embodiment of the invention according to the main patent one or more water-binding substances under exothermic reaction by hydrolysis and / or hydration, for example crystal water-free May contain sodium sulfate, sodium hydrophosphate, sodium carbonate, barium oxide, silicon chloride or the like.
  • the object of the present invention is accordingly to provide a method and a device with the aid of which, on the basis of the method of the invention according to the main patent, it is possible to remove fog and, if necessary, to prevent limited areas from fog without leaving residues.
  • the invention consists in that the air contained in the limited area is continuously sucked off and returned in a closed circuit, the air being circulated through a container containing the substance and its moisture being removed to a value below the saturation limit.
  • the invention provides a method by means of which a long-lasting, time-limited and in particular preventive fog-free area areas can be achieved quickly and at low cost, no reagents being sprayed into the atmosphere and therefore also no undesired Reaction products are emitted into the atmosphere.
  • a long-lasting, time-limited and in particular preventive fog-free area areas can be achieved quickly and at low cost, no reagents being sprayed into the atmosphere and therefore also no undesired Reaction products are emitted into the atmosphere.
  • the fogging or Preventive effect is further enhanced by the fact that the heating of the air due to the exothermic reaction and the increase in volume caused thereby disproportionately reduces the relative air humidity and thus the water Absorbency of the air is significantly increased, whereby the fog removal, accelerated and the preventive effect against the formation of fog is further improved.
  • the treatment is advantageously carried out with a metal carbide, preferably calcium carbide, via which the air in the reaction vessel is passed, the substance as an additive being an organic substance containing nitrogen and hydrogen, for example an azane, diazane , Triazane or tetraazane, an azen, diazen, triazene or tetraazene, a triazdiene or tetraazdiene, furthermore azo or diazomethane, formic acid, methyl hadrazine, oxalic acid, dimethyl peroxide, in pure form or as a salt.
  • a metal carbide preferably calcium carbide
  • Hydration water-binding substance preferably crystal water-free sodium sulfate, sodium hydrophospha, sodium carbonate, barium oxide, silicon chloride or the like. It is of course also possible to use a mixture of both substances, the mixture being obtained by hydrolysis or Hydration can contain water-binding substances in an amount of up to 85% by weight, preferably between 35 and 65% by weight.
  • the substance can furthermore contain materials which are indifferent to water for buffering the reaction, for example alkali or alkaline earth carbonates, for example calcium carbonate or sodium carbonate.
  • materials which are indifferent to water for buffering the reaction for example alkali or alkaline earth carbonates, for example calcium carbonate or sodium carbonate.
  • the device for carrying out the method according to the invention consists of a system of lines comprising suction nozzles which extend in the limited area and are connected via a blower to a container for receiving the material which reacts with the humidity, to which a container is attached system of outflow openings comprising a limited area is connected.
  • the suction and blowing lines in the vicinity are advantageously guided essentially parallel to one another, the suction or Outflow openings are arranged in such a way that the air is sucked out of the bounded area from a substantially horizontally extending direction and blown out into the bounded area in a substantially vertically extending direction.
  • Fig. 1 is a schematic representation of a system for optional
  • Fig. 2 shows another embodiment of a system for elimination of the creeping fog in a schematic representation
  • FIG. 3 shows a further embodiment of a system for removing fog in a schematic illustration
  • FIG. 1 An airfield apron with dimensions of 50 x 30 x 15 m (22,500 rn 3 ) should be cleared of fog for a non-fixed period of time when there is no wind.
  • a fixed device is therefore installed, which - see FIG. 1 - consists of two stationary reaction containers 7 and 8, one Circulation fan 6 and a stationary, but by about 15 m height adjustable system of intake nozzles.
  • Exhaust openings having suction and pressure pipes 1, 2, 3, 4, 5.
  • the cables are made of plastic or light metal and are evenly distributed next to each other at a distance of approx. 8 to 10 m over the field of action.
  • the tube construction is carried and shifted by a lifting device system or by a light light metal construction.
  • the suction pipelines have suction ports directed downwards and the pressure pipelines have the pressure ports directed upwards, the suction and pressure pipelines being designed and assembled as twin pipes.
  • the fog air is drawn in through the suction pipes of the twin pipes 1, 2, 3, 4, 5 by means of the fan 6.
  • the fan can have a capacity of 22 500 Nm 3 / h or 45000 Nm 3 / h or more, depending on the time within which the defogging of the area must be ensured.
  • the sucked-in air on its circulation first arrives in the reaction container 7 filled with ground carbide in order to eliminate the moisture in the mist, and then in the reaction container 8 filled with fine powdered sodium sulfate to reduce the relative humidity. It is then transferred to container 7 as clear and due to the exothermic reaction heated air is conveyed back to the treated area via the pressure pipes of the twin pipe.
  • the pipes in the twin pipes have a diameter of 325 (or 460), the header pipes a diameter of 750 (or -1000) mm.
  • the chemical requirement depends on the fog concentration.
  • the reaction vessels have a diameter of 2000/3500 mm. Example 2;
  • An airfield apron as in example 1, is to be freed of creeping fog.
  • the same device as in example 1 is used, but an additional device (FIG. 2) is installed on the inflow side of the mist into the treated area, which consists of a number of suction lines 10 arranged side by side, which are connected to the suction line of a fan system and suck the air out of the corridor 11 located on the inflow side of the field to be kept free of fog.
  • the suction power is dependent on the inflow speed of the creeping mist, it is calculated
  • the procedure can be such that the additional device is operated on the treatment area on the inflow side of the mist with a power which covers the entire inflow quantity, on the one hand the air extracted from the upstream corridor 11 into a space located outside the treatment area 12 13 removed and on the other hand the treatment area is fogged in the manner described in Example 1.
  • the method is complex and its use must be checked from case to case from an economic point of view.
  • An airfield apron as in example 1, is to be preventively protected against the occurrence of fog.
  • the moisture display approaches the degree of saturation of 100%.
  • the same system is put into operation as in example 1, but with the aim of continuously maintaining the saturation limit of 95%.
  • the fan 6 now only loads the reaction container 8.
  • a soccer field 100 x 100 x 20 (200000 m 3 ) m should be misted or protected against fog.
  • the same procedure is used as in FIG. 1, with the difference that the single twin tube, which can be moved upwards, is moved as a mobile system, for example mounted on a trailer with a movable stage, with a working width of 10 to 15 m in lanes over the entire working field .
  • Example 5 Example 5:
  • a crosswalk in the city center should be kept completely fog-free.
  • the area to be fogged is 5 x 30 x 5 m (750 m 3 ).
  • the nebulizer system is built up from elements in a stationary manner or a mobile unit is used. You move rectangular twin ring tubes from bottom to top and clear the passage. In the case of a long-lasting fog, the ring twin pipes are shifted in certain time periods. The air is sucked in - see FIG. 3 - by the fan 14, passed through the reaction vessel 15 and filter 16 into the pressure line of the ring twin pipe 1.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Atmospheric Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

Dans ce procédé, l'air est aspiré et ramené de manière continue dans un cycle fermé, l'humidité de cet air étant réduite jusqu'à une valeur située en-dessous de la limite de saturation. Le traitement est effectué au moyen d'un carbure métallique, de préférence du carbure de calcium, et/ou d'une substance liant de l'eau par hydrolyse ou hydratation, par exemple de l'hydrophosphate de sodium ou du sulfate de sodium anhydre, pouvant être contenu lors du mélange des deux substances en une quantité allant jusqu'à 85 % en poids, de préférence située entre 35 et 65 % en poids, dans la substance réagissant avec l'humidité condensée. L'installation se compose d'un système de conduites (1-5) contenant des tuyères d'aspiration et relié à un récipient (7, 8) servant à recevoir le matériau réagissant avec l'humidité de l'air et relié à la buse d'aspiration d'un ventilateur (6) auquel est raccordée une conduite de pression (1-5) entourant la région limitée et comportant des ouvertures d'évacuation.
EP85900101A 1983-12-12 1984-12-08 Procede pour eliminer le brouillard de l'atmosphere Expired - Lifetime EP0165278B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85900101T ATE66710T1 (de) 1983-12-12 1984-12-08 Verfahren zur beseitigung von nebel aus der atmosphaere.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833344809 DE3344809A1 (de) 1983-12-12 1983-12-12 Verfahren und vorrichtung zur beseitigung von nebel aus der atmosphaere
DE3344809 1983-12-12

Publications (2)

Publication Number Publication Date
EP0165278A1 true EP0165278A1 (fr) 1985-12-27
EP0165278B1 EP0165278B1 (fr) 1991-08-28

Family

ID=6216667

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85900101A Expired - Lifetime EP0165278B1 (fr) 1983-12-12 1984-12-08 Procede pour eliminer le brouillard de l'atmosphere

Country Status (5)

Country Link
US (1) US4726517A (fr)
EP (1) EP0165278B1 (fr)
JP (1) JPS61500676A (fr)
DE (1) DE3344809A1 (fr)
WO (1) WO1985002637A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT403073B (de) * 1987-06-04 1997-11-25 Jordan Paul Dipl Ing Verfahren und hochhaus zur verbesserung der aussenluft, insbesondere stadtluft
US5176319A (en) * 1990-04-12 1993-01-05 Esmond & Clifford, Inc. Method and apparatus for dispelling fog
WO1991016500A1 (fr) * 1990-04-12 1991-10-31 Esmond & Clifford, Inc. Procede et appareil servant a dissiper le brouillard
US5242109A (en) * 1990-04-12 1993-09-07 Esmond & Clifford, Inc. Method and apparatus for dispelling fog
DE4012636C2 (de) * 1990-04-20 1995-03-09 Artur Kunder Vorrichtung zur Entnebelung von Verkehrsräumen
US7191715B2 (en) * 2004-01-16 2007-03-20 Cnh America Llc Tandem gauge wheel assembly for planting unit
CN113118398A (zh) * 2021-04-19 2021-07-16 山西太钢不锈钢股份有限公司 一种消除高碳马氏体不锈钢连铸板坯大颗粒碳化物的生产方法

Family Cites Families (19)

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US2052626A (en) * 1933-06-05 1936-09-01 Massachusetts Inst Technology Method of dispelling fog
GB449321A (en) * 1934-12-18 1936-06-18 Massachusetts Inst Technology Method and apparatus for dispelling fog
US2176851A (en) * 1937-01-21 1939-10-17 Purdue Research Foundation Adsorbent and drying agent and process of producing it
US2700537A (en) * 1951-06-29 1955-01-25 Robert H Henley Humidity changer for air-conditioning
DE1005304B (de) * 1955-03-01 1957-03-28 Robert Von Linde Entnebelungsanlage fuer Fahrbahnen, insbesondere fuer Startbahnen auf Flugplaetzen
BE693797A (fr) * 1966-02-08 1967-07-17
FR1514726A (fr) * 1966-03-25 1968-02-23 Marelli & C Spa Ercole Dispositif permettant, en cas de brouillard, d'améliorer la visibilité au-dessus d'une zone d'étendue limitée de la surface terrestre, notamment au-dessus des pistesd'atterrissage pour avions
US3534906A (en) * 1967-11-20 1970-10-20 Dow Chemical Co Control of atmospheric particles
DE2016863A1 (de) * 1970-04-09 1971-10-21 Guntheroth, Dr Ing Hans, 4323 Altendorf Verfahren und Vorrichtung zur Ent nebelung der Luft über Flugzeug Roll bahnen
DE2043519A1 (de) * 1970-09-02 1972-03-16 Farbwerke Hoechst AG, vorm. Meister Lucius & Brüning, 6000 Frankfurt Verfahren und Mittel zur Beeinflussung des Wetters
US3766079A (en) * 1970-10-13 1973-10-16 Smith Inland A O Exothermic composition
DE2217338C3 (de) * 1972-01-24 1980-12-04 Cellsystem Ag, Zofingen (Schweiz) Vorrichtung zur Enteisung, Be- und Entwässerung von Sportfeldanlagen
FR2199565B1 (fr) * 1972-09-15 1975-03-14 France Etat
GB1454595A (en) * 1974-02-15 1976-11-03 Dow Chemical Co Fog abatement
DE2434434B1 (de) * 1974-07-17 1975-06-12 Siemens Ag, 1000 Berlin Und 8000 Muenchen Einrichtung zur Wolken- und/oder Regenblldung
DE2703114A1 (de) * 1977-01-26 1978-07-27 Linde Ag Anlage zur klimatisierung von orten mit heissem klima und zur suesswassergewinnung an diesen orten
WO1980000313A1 (fr) * 1978-07-26 1980-03-06 Nat Res Dev Amelioration dans la stabilisation de sels hygroscopiques
DE3228755A1 (de) * 1982-08-02 1984-02-02 Rudolf-Walter 4600 Dortmund Teuber Verfahren zur klimabeeinflussung
DE3247607A1 (de) * 1982-12-23 1984-07-05 Zbigniew Dr. 6078 Neu-Isenburg Boguslawski Verfahren zur beseitigung von nebel aus der atmosphaere

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8502637A1 *

Also Published As

Publication number Publication date
WO1985002637A1 (fr) 1985-06-20
US4726517A (en) 1988-02-23
EP0165278B1 (fr) 1991-08-28
JPS61500676A (ja) 1986-04-10
DE3344809A1 (de) 1985-06-13

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