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WO1983003781A1 - Procede et dispositif d'injection d'eau a pression elevee pour des operations de nettoyage routier - Google Patents

Procede et dispositif d'injection d'eau a pression elevee pour des operations de nettoyage routier Download PDF

Info

Publication number
WO1983003781A1
WO1983003781A1 PCT/JP1982/000145 JP8200145W WO8303781A1 WO 1983003781 A1 WO1983003781 A1 WO 1983003781A1 JP 8200145 W JP8200145 W JP 8200145W WO 8303781 A1 WO8303781 A1 WO 8303781A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
injection
water
pressure water
flow
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
Application number
PCT/JP1982/000145
Other languages
English (en)
Japanese (ja)
Inventor
Ltd. Tokyo Road Engineering Co.
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.)
Tokyo Road Engineering Co Ltd
Original Assignee
Tokyo Road Engineering Co Ltd
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 Tokyo Road Engineering Co Ltd filed Critical Tokyo Road Engineering Co Ltd
Priority to EP19830903360 priority Critical patent/EP0108153A4/fr
Priority to PCT/JP1982/000145 priority patent/WO1983003781A1/fr
Publication of WO1983003781A1 publication Critical patent/WO1983003781A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/025—Nozzles having elongated outlets, e.g. slots, for the material to be sprayed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/0075—Nozzle arrangements in gas streams
    • 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
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/005—Mobile installations, particularly for upkeeping in situ road or railway furniture, for instance road barricades, traffic signs; Mobile installations particularly for upkeeping tunnel walls
    • 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
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/10—Hydraulically loosening or dislodging undesirable matter; Raking or scraping apparatus ; Removing liquids or semi-liquids e.g., absorbing water, sliding-off mud
    • E01H1/101—Hydraulic loosening or dislodging, combined or not with mechanical loosening or dislodging, e.g. road washing machines with brushes or wipers

Definitions

  • the present invention relates to efficient cleaning of industrial facilities and member surfaces, especially highway water flow for finishing road cleaning with extremely high efficiency while moving a spraying tool on a tunnel wall, for example, a roadside facility in the field of road construction.
  • a spraying tool on a tunnel wall for example, a roadside facility in the field of road construction.
  • the high-pressure jet water flow particles are suppressed by the compressed air flow released from the rectangular cross section through the equipment mounted on the traveling vehicle, and this fluid is surrounded by another air flow.
  • the injection method for obtaining a water pressure pattern that is narrow in the horizontal (X-axis) direction of the surface to be cleaned and elongated in the vertical direction, and is equalized in pressure. Is
  • nozzle devices intended for cleaning use either a pattern such as an elliptical shape, a circular shape, or an annular shape depending on the shape and size of the hole of the nozzle itself, regardless of the supply water pressure. Radiating.
  • the elliptical pattern in Fig. 5 shows the pressure distribution at the collision surface, as can be seen in Fig. 7, even when the nozzle angle is variable.
  • the central part is the highest, and the peripheral part is compressed and becomes lower as the distance from the axis 0 increases. .
  • the present invention mainly relates to a method for cleaning road facilities and equipment therefor, wherein a cylindrical drum comprising an outer air chamber and an inner air chamber constituting the equipment comprises two air-radiating pipes and this concentric pipe. It is combined with two compressed air passages formed by pipes.
  • the high-pressure jet water from the nozzle hole communicating with each of the above-mentioned portions and acting simultaneously, and the compressed air flow by the two layers, are obtained by mixing the jetted water particles with the above-mentioned air particles under certain restrictions.
  • a layered fluid having a uniform pressure as in a double envelope is produced and administered to allow a desired rod-shaped pressure distribution to occur on the surface to be washed.
  • the particles forming the high-pressure water flow are surrounded by an air flow having two layers, which are equivalent in relative velocity and in terms of particle mechanics, and are sprayed in a uniform manner.
  • Fig. 1 is a perspective view of the device for carrying out the method of the present invention
  • Pig. 2 is a cross-sectional configuration and operation diagram in the plane of the device
  • Fig. 3 is a cross-sectional configuration and operation diagram in the side surface of the device.
  • Tig. 4 is the action data according to the embodiment of the present invention
  • FIG. 6 is a diagram of the water pressure distribution pattern obtained in FIG. 4, and FIG. 5, FIG. 7, FIG. Refers to a known hydraulic pattern c . Best mode for carrying out the present invention (Detailed Description of the Invention)
  • the present invention relates to efficient cleaning of industrial facilities and member surfaces, and in particular to high-pressure cleaning for extremely efficient cleaning of roadside facilities in the field of road construction, for example, by moving a spray device to a tunnel wall surface.
  • the present invention relates to a method and apparatus for jetting water.
  • the inventor previously provided a hollow pipe surrounding the nozzle as means for forcing an ultra-high pressure water stream ′ from a small-hole nozzle to strongly collide with the air flow exceeding the jetted water velocity in the pipe.
  • a device for mixing with water flow was proposed.
  • the injection method according to the present invention can not be solved by the above-mentioned proposal. It is an added concept that has been reached after repeating a number of tests to obtain a reasonable hydraulic pattern, i.e. both the direction of movement of the nozzle, the X-axis, and the line ⁇ , which is perpendicular to it.
  • the objective of the subject was achieved by enabling the rod-shaped mist flow (Fig. 6) extending vertically (Y-axis) under constant pressure to be constantly cleaned on the surface to be cleaned.
  • FIG. 1 is a perspective view with a cross section of the device I according to the present invention
  • FIG. 2 is a longitudinal sectional view of the device I and an explanatory view of the action.
  • the device I is composed of a first pipe 8 with a rectangular cross section that forms the appearance, and a hollow inside
  • the second pipe 9 has a rectangular cross-section and is formed with passages 7 'and 6', respectively, through which the air flow (i'ig.3) from the compressed air inlet 5 passes. ing.
  • the device I also has a cylindrical drum air chamber disposed at the rear, and the walls of the two pipes 8, 9 communicate with this air chamber.
  • the Li air chamber is composed of a first air chamber 7 formed at the end of the drum and a second air chamber 6 provided inside the drum, and the air flow described above is passed through the air communication port 10. Part of A (Fig. 3) is allowed to flow into the chamber 7 described above.
  • a nozzle 1 having an elliptical hole 2 within a small 1% is disposed in the vicinity where the second air chamber of the drum and the second pipe 9 are connected.
  • the center of such a drum A high-pressure water introduction pipe 4 is fitted to the shaft, and a distal end of the pipe 4 is connected to a base 3 that projects into the drum and supports the nozzle 1.
  • the base 3 is screwed to the screw portion 12, the nozzle 1 is positioned to be able to slightly expand and contract forward.
  • the instrument I has a front jet angle of 12.5 ° to 15 °. Within, the lateral angle ⁇ is approximately fixed 2.
  • the above-mentioned air flow pipes 8 and 9 having a rectangular cross section are opened forward while maintaining at least the illustrated angle of 7 °. Approximately 7, when compressed air is emitted into the atmosphere. This is because it can be calculated that the process proceeds while spreading.
  • the external appearance of the above-mentioned device I is as follows. In this example (a rectangular cross section of 65% ⁇ 15% in the second case), the device was made compact with a depth of 90%, and assembled via left and right flanges 11 and 11.
  • the device I was configured as described above, and the operation in this case will be described below with reference to FIGS.
  • the working distance between the wall of the large tunnel (Implementation site, Otsuki Tunnel in Japan, 499, height 7) and the working distance of the appliance I was extremely close to each other by regular means.
  • the distance of the implementation was reduced to 550% to 100% range.
  • the instrument I was operated via an engine, a high-pressure pump (not shown) mounted on the vehicle, and an air compressor.
  • the high-pressure water is set at 50 and is fed to the nozzle 1 from the introduction pipe 4, and the jet water flow w 2 is radiated forward from the elliptical hole 2 (0.8%) of the nozzle as shown by the dotted line in the figure.
  • part a 2 remaining the air flow A passes through the second air chamber 6 of the drum, and flows out to the front second pipes 9 inside the air passage 6 of the '.
  • the above-described air flow a: in the passage 7 ′ is diverted to the inner passage 6 ′ through a plurality of air passage holes 9 ′, 9 ′ drilled in the wall of the pipe 9 and inclined downward. and which, therefore the each of the particles of the jet w 2 the force - will form the academic on, Ichiso intends constrained mixed flow in the direction of the longitudinal axis of the passage 6 '.
  • the (w 2 + a 2 ) group of energetic particles in the second pipe 9 having a rectangular cross section is further radiated in a forcible manner by being surrounded by a layer of external flow and radiated in a forced manner. It becomes possible to obtain a pressure pattern.
  • Tunnel in-house operation such as 100% to 550% distance from appliance I • "A curve is also long in the Y-axis direction according to the logic on the surface to be cleaned, even if the work interval changes. While showing a short axis width of 5 ⁇ , 4 cm, and 3 cm on the X-axis, irregular curves are exhibited in each of these cases.
  • the method of the present invention was not carried out, the following effect was caused due to the difference in distribution with the pattern b (dotted kag in Fig. 4) occurring on the surface to be cleaned.
  • the implementation of the method of the invention allows the jet stream to administer the above-mentioned pressure pattern a, so that the working efficiency can be stably increased, and another advantage is that the particles of the jet stream do not naturally disperse in mist. Therefore, the operation loss and the effect of the present invention are not limited to the above-described embodiment.
  • the high pressure water was 100 to ⁇ ⁇ ⁇ , ⁇ ⁇

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

Un dispositif permettant de projeter un jet d'eau à pression élevée et uniforme pour nettoyer la surface de la paroi d'un tunnel délivre de l'eau à pression élevée via une conduite d'amenée d'eau à haute pression (4), projette l'eau d'un ajutage (1) à trous elliptiques (2), délivre de l'air comprimé via une conduite d'amenée (5), décharge l'air au travers d'un passage (7') entre la première conduite (8) de section transversale rectangulaire creuse et la deuxième conduite (9) de section transversale rectangulaire cruse disposée à l'intérieur, décharge simultanément l'air via le passage (6') de la deuxième conduite (9), et mélange une partie du jet d'air du passage (7') au jet d'air du passage (6') au travers d'un trou de passage d'air (9'). Le jet d'eau injecté est ainsi déchargé sous forme d'un fluide laminaire entouré d'une pluralité de couches de jet d'air, de manière à projeter un jet d'eau de pression uniforme contre la surface à nettoyer, ce qui permet de nettoyer efficacement la paroi. Ce dispositif peut être utilisé avant la peinture, pour enlever le solvant, etc.
PCT/JP1982/000145 1982-04-28 1982-04-28 Procede et dispositif d'injection d'eau a pression elevee pour des operations de nettoyage routier Ceased WO1983003781A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19830903360 EP0108153A4 (fr) 1982-04-28 1982-04-28 Procede et dispositif d'injection d'eau a pression elevee pour des operations de nettoyage routier.
PCT/JP1982/000145 WO1983003781A1 (fr) 1982-04-28 1982-04-28 Procede et dispositif d'injection d'eau a pression elevee pour des operations de nettoyage routier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1982/000145 WO1983003781A1 (fr) 1982-04-28 1982-04-28 Procede et dispositif d'injection d'eau a pression elevee pour des operations de nettoyage routier

Publications (1)

Publication Number Publication Date
WO1983003781A1 true WO1983003781A1 (fr) 1983-11-10

Family

ID=13762239

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1982/000145 Ceased WO1983003781A1 (fr) 1982-04-28 1982-04-28 Procede et dispositif d'injection d'eau a pression elevee pour des operations de nettoyage routier

Country Status (2)

Country Link
EP (1) EP0108153A4 (fr)
WO (1) WO1983003781A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3526178C1 (de) * 1985-07-23 1986-08-14 Langguth GmbH & Co, 4400 Münster Beleimungsverfahren fuer Behaelter in Etikettiermaschinen unter Verwendung z.B. von Schmelzklebern
NL8502649A (nl) * 1985-09-27 1987-04-16 Homburg Machinehandel Inrichting voor het op een gewas spuiten van een vloeistof.
DE19749071A1 (de) * 1997-11-06 1999-06-10 Herbert Huettlin Mehrstoffzerstäubungsdüse
US6328226B1 (en) * 1999-12-22 2001-12-11 Visteon Global Technologies, Inc. Nozzle assembly
DE102024102070A1 (de) * 2024-01-24 2025-07-24 Alfred Kärcher SE & Co. KG Ausgabeeinrichtung zum ausgeben eines mantelförmig von einer luftströmung umgebenen flüssigkeitsstrahls

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS534671Y2 (fr) * 1974-07-31 1978-02-06

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2029337A (en) * 1932-11-21 1936-02-04 California Spray Chemical Corp Nozzle
US2270579A (en) * 1939-05-19 1942-01-20 John W Chamberlin Cleaning device
US2478557A (en) * 1947-09-13 1949-08-09 Walter H Bell Sprayer and sprayer head for fluent coating materials
US3848807A (en) * 1973-12-10 1974-11-19 P Partida Confining nozzle for spray gun

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS534671Y2 (fr) * 1974-07-31 1978-02-06

Also Published As

Publication number Publication date
EP0108153A1 (fr) 1984-05-16
EP0108153A4 (fr) 1985-09-25

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