EP0461295B1 - Sprayhead for a stationary de-icing liquid spray installation for roadways, taxiways and runways - Google Patents
Sprayhead for a stationary de-icing liquid spray installation for roadways, taxiways and runways Download PDFInfo
- Publication number
- EP0461295B1 EP0461295B1 EP90111340A EP90111340A EP0461295B1 EP 0461295 B1 EP0461295 B1 EP 0461295B1 EP 90111340 A EP90111340 A EP 90111340A EP 90111340 A EP90111340 A EP 90111340A EP 0461295 B1 EP0461295 B1 EP 0461295B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spray
- cover
- icing
- icing medium
- sprayhead
- 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
- 239000007921 spray Substances 0.000 title claims abstract description 51
- 238000009434 installation Methods 0.000 title claims description 9
- 239000007788 liquid Substances 0.000 title description 3
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 abstract description 23
- 238000010257 thawing Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
-
- 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
- E01H10/00—Improving gripping of ice-bound or other slippery traffic surfaces, e.g. using gritting or thawing materials ; Roadside storage of gritting or solid thawing materials; Permanently installed devices for applying gritting or thawing materials; Mobile apparatus specially adapted for treating wintry roads by applying liquid, semi-liquid or granular materials
- E01H10/005—Permanently-installed devices for applying gritting or thawing materials, e.g. for spreading grit, for spraying de-icing liquids
Definitions
- the invention relates to a spray nozzle head according to the preamble of patent claim 1.
- a large number of spray nozzle heads are arranged along the surface to be sprayed (see e.g. CH-A-658 411, Fig. 4).
- Such heads are e.g. attached to guardrail posts. It is also known to arrange the spray nozzle heads lying on the same in the non-traveled part of the road.
- the spray nozzle heads or the nozzles arranged therein are supplied with the de-icing agent via controllable valves in order to spray this onto the road.
- the known spray nozzle heads have the disadvantage that these heads are damaged relatively frequently.
- damage is most often caused by an automobile crashing against the guardrail post; on the other hand, the heads arranged on the carriageway are most frequently damaged during snow removal work.
- FR-E-18 209 shows a spray nozzle for water which is sunk into the road. However, this is made in one piece and is very difficult to maintain. It can also only spray a relatively small area.
- the object of the invention is therefore to create a spray nozzle head which does not have these disadvantages. This will be the case with a spray nozzle head of the type mentioned with the characterizing features of claim 1 achieved.
- the spray nozzle head By the spray nozzle body retractable in the road and the arrangement of the nozzle and the discharge opening for the de-icing agent on or below the Lane levels, a spray nozzle head is created that cannot be damaged by vehicle accidents or snow removal machines.
- the spray nozzle head can be recessed into the pavement except for the discharge opening.
- the spray nozzle head consists of a base and a drive-over cover, which gives good access to the connections to the de-icing agent line and the nozzles; this applies to installation as well as service and repair work.
- the defrosting agent is preferably passed within the spray nozzle head through channels formed in the cover and the base part.
- the base part is designed as an actual trough in which further installations can be placed, for example the controllable valve.
- a hydraulic accumulator is also preferably arranged in this trough, which stores a certain amount of de-icing medium under pressure.
- This de-icing agent is sprayed onto the roadway via the controllable valve and the nozzle when de-icing agent is required.
- the arrangement of the installations in the bottom part of the spray head results in a compact unit that is optimally protected against damage and is nevertheless easily accessible.
- a spray head sunk in the roadway 1 is shown in section.
- the roadway is only indicated and not shown with its known layer structure.
- a height of the spray head of 60 mm can be assumed as an example.
- a corresponding deepening must be provided in the lane.
- the spray head consists of a base part 2 and a cover 3.
- the base part 2 (actual diameter 260 mm) is shown in a top view in FIG. 2, the cover 3 in FIG. 3.
- a side opening 6 and a chamber 7 are provided in the base part 2.
- the defrosting medium line 5 (tube or hose), which is only shown schematically, is inserted into the bottom part in the roadway.
- the de-icing medium line provided with a corresponding connecting piece is connected to the upwardly angled de-icing medium channel 8 of the base part 2.
- the base part 2 has a recess delimited by the edge 10, in which the cover 3 can be arranged.
- the surface of the cover 3 comes to lie essentially flush with the upper edge of the edge 10 or with the road surface.
- a bore 14 is provided for receiving a threaded bolt with a countersunk head. With this bolt the cover can be fixed to the bottom part. If the cover is not fixed, it can be rotated about the axis of the bore 14.
- an annular defrost channel 12 is provided, which is connected to the channel 8 of the base part 2.
- One or - as shown - a plurality of known nozzles 16 open out at one end into the channel 12 and at the other into a discharge opening 17 in the lid 3.
- the nozzle and the ejection opening are inclined upwards and form an angle alpha of approximately 10 degrees with the horizontal.
- seven nozzles 16 are provided, which are each offset by approximately 18 degrees.
- the throwing direction for the de-icing agent can be set.
- Several seals 18 are provided between the cover and the bottom part.
- the cover 3 and the base part 2 are designed so that they cannot be driven over, that is to say they withstand the loads which arise when a vehicle or an aircraft rolls over the spray body or stops on it.
- the lid and base part can be made of stainless steel, aluminum or glass fiber reinforced plastic. In particular for carriageways, the surface of the cover 3 should be made rough as the road surface so as not to pose a danger to single-track vehicles driving over it.
- the function of the spray head is the same as that of known spray heads.
- the controllable valve of the de-icing spray device when the de-icing agent is opened, de-icing agent is passed through the channels 8 and 12 to the nozzles 16 and ejected through them. After a predetermined period of time, the controllable valve closes and the spraying is ended.
- FIG. 4 shows a further embodiment in section
- Figure 5 is a plan view of the bottom part of this embodiment.
- 20 and 21 designate two cover parts of the spray nozzle head, each of which essentially corresponds to the cover 3 previously described, that is to say have at least one nozzle and one ejection opening.
- 22 and 23 associated control valves are referred to.
- 24 and 25 are two hydraulic accumulators. These elements are well known. They store a certain amount of de-icing medium under pressure. The de-icing agent is located in the liquid space 32 of the Pressure vessel 24 or 25, which space is separated from a gas space 30 by means of a flexible membrane. This can be filled with gas of a predetermined pressure via a valve 31.
- the hydraulic accumulators are filled with de-icing agent from the de-icing medium line 27 via a check valve 26 until a pressure equilibrium between the gas space and the liquid space of each hydraulic accumulator is reached.
- These stores now contain a defined amount of pressurized de-icing agent.
- one of the valves 22, 23 or both valves is now opened.
- the hydraulic accumulators empty due to the gas pressure through the nozzles.
- the valves 22, 23 are then closed and the hydraulic accumulators are filled again with de-icing agent from line 27.
- FIGS. 4 and 5 now show a spray head in which the hydraulic elements mentioned are integrated.
- This spray head has a base part which is designed as a trough 42.
- the cover part is in three parts and comprises a first part 33, which rests on the tub rim.
- This cover part has two recesses, in each of which the cover part 20 or 21 is inserted.
- These cover parts are constructed in the same way as the cover part 3 of FIGS. 1 to 3.
- FIG. 4 these cover parts 20, 21 are each shown above the corresponding recess in the cover part 33.
- the de-icing medium line in the cover 33, 20, 21 takes place via a channel 38 in part 33, in each case in an annular channel 52 in parts 20, 21 and to the nozzles 36.
- the parts 20, 21 are each fixed on part 33 by means of a countersunk threaded bolt in a central threaded bore 44.
- the circular cover parts 20, 21 are also rotatable in the cover part 33 when the threaded bolt is loosened is to adjust the throwing direction for the de-icing agent.
- FIG. 6 The installations according to FIG. 6 are arranged in the tub. These installations are only shown schematically in FIGS. 4 and 5. Another spatial arrangement is of course also possible. It is also possible to use only one, but larger, hydraulic accumulator instead of the two accumulators 24, 25. In the case of a de-icing agent spraying device without a hydraulic accumulator, only the valves 22, 23 can also be arranged in the trough 42. At most, this also applies if hydraulic accumulators are arranged in a separate cabinet at the edge of the road.
- a spray head with two spray plates 20, 21, be it with a trough-shaped installation base part or with a normal base part 2, is particularly suitable for airport applications, since the de-icing agent must be spread out over a larger area there than on roads. On roads, especially motorways, the high vehicle density results in a strong dragging of the de-icing agent, which ensures its even distribution even with larger distances between the spray heads. On the other hand, with two spray plates, good coverage of the surface with de-icing agents can be achieved with the spray head.
- the exemplary embodiments shown offer easy adjustment of the throwing direction for the defrosting agent and good accessibility from above for installation and maintenance work.
- other designs are possible in which the entire spray body is sunk into the roadway and the road surface covers the spray body except for an opening for the de-icing agent ejection.
- Such embodiments are not easy to maintain.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Nozzles (AREA)
- Road Repair (AREA)
Abstract
Description
Die Erfindung betrifft einen Sprühdüsenkopf gemäss Oberbegriff des Patentanspruchs 1.The invention relates to a spray nozzle head according to the preamble of
Bei stationären Taumittelsprüheinrichtungen, z.B. bei Flughäfen und Autobahnviadukten, sind eine grosse Anzahl von Sprühdüsenköpfen, jeweils mit einer oder mehreren Düsen, entlang der zu besprühenden Fläche angeordnet (vergl. z.B. CH-A- 658 411, Fig. 4). Bei Autobahnen sind solche Köpfe z.B. an Leitplankenpfosten befestigt. Bekannt ist es auch, die Sprühdüsenköpfe im nicht befahrenen Teil der Fahrbahn auf derselben aufliegend anzuordnen. Die Sprühdüsenköpfe bzw. die darin angeordneten Düsen werden über steuerbare Ventile mit dem Taumittel versorgt, um dieses auf die Fahrbahn zu sprühen.With stationary de-icing devices, e.g. at airports and motorway viaducts, a large number of spray nozzle heads, each with one or more nozzles, are arranged along the surface to be sprayed (see e.g. CH-A-658 411, Fig. 4). Such heads are e.g. attached to guardrail posts. It is also known to arrange the spray nozzle heads lying on the same in the non-traveled part of the road. The spray nozzle heads or the nozzles arranged therein are supplied with the de-icing agent via controllable valves in order to spray this onto the road.
Bei den bekannten Sprühdüsenköpfen ergibt sich der Nachteil, dass diese Köpfe relativ häufig beschädigt werden. Bei den an den Leitplankenpfosten befestigten Köpfen erfolgt die Beschädigung am häufigsten durch den Aufprall eines Automobils an dem Leitplankenpfosten; bei den auf der Fahrbahn angeordneten Köpfen hingegen erfolgt eine Beschädigung am häufigsten bei Schneeräumungsarbeiten.The known spray nozzle heads have the disadvantage that these heads are damaged relatively frequently. In the heads attached to the guardrail posts, damage is most often caused by an automobile crashing against the guardrail post; on the other hand, the heads arranged on the carriageway are most frequently damaged during snow removal work.
In FR-E-18 209 wird eine Sprühdüse für Wasser gezeigt, welche in die Fahrbahn versenkt wird. Diese ist aber einstückig ausgeführt und kann sehr schlecht gewartet werden. Auch kann sie nur eine relativ kleine Fläche besprühen.FR-E-18 209 shows a spray nozzle for water which is sunk into the road. However, this is made in one piece and is very difficult to maintain. It can also only spray a relatively small area.
Der Erfindung liegt deshalb die Aufgabe zugrunde, einen Sprühdüsenkopf zu schaffen, der diese Nachteile nicht aufweist. Dies wird bei einem Sprühdüsenkopf der eingangs genannten Art mit den kennzeichnenden Merkmalen des Patentanspruchs 1 erreicht.The object of the invention is therefore to create a spray nozzle head which does not have these disadvantages. This will be the case with a spray nozzle head of the type mentioned with the characterizing features of
Durch den in der Fahrbahn versenkbaren Sprühdüsenkörper und die Anordnung der Düse und der Auswurföffnung für das Taumittel auf oder unterhalb des Fahrbahnniveaus, wird ein Sprühdüsenkopf geschaffen, der weder durch Fahrzeugunfälle noch durch Schneeräumungsmaschinen beschädigt werden kann. Der Sprühdüsenkopf kann bis auf die Auswurföffnung im Fahrbahnbelag versenkt sein. Der Sprühdüsenkopf besteht aus einem Bodenteil und einem überfahrfesten Deckel, was einen guten Zugang zu den Anschlüssen an die Taumittelleitung und den Düsen gibt; dies sowohl bei der Installation als auch für Service- und Reparaturarbeiten. Bevorzugterweise wird das Taumittel innerhalb des Sprühdüsenkopfes durch im Deckel und dem Bodenteil ausgeformte Kanäle geleitet. Bei einer weiteren bevorzuten Ausführungsart ist das Bodenteil als eigentliche Wanne ausgeführt, in welcher weitere Installationen Platz finden, so z.B. das steuerbare Ventil. Bevorzugterweise wird in dieser Wanne zudem ein Hydrospeicher angeordnet, welcher eine bestimmte Menge Taumittel unter Druck speichert. Dieses Taumittel wird über das steuerbare Ventil und die Düse auf die Fahrbahn gesprüht, wenn ein Taumitteleinsatz erforderlich ist. Die Anordnung der Installationen im Bodenteil des Spühkopfes ergibt eine kompakte Einheit, welche optimal gegen Beschädigungen geschützt und dennoch gut zugänglich ist.By the spray nozzle body retractable in the road and the arrangement of the nozzle and the discharge opening for the de-icing agent on or below the Lane levels, a spray nozzle head is created that cannot be damaged by vehicle accidents or snow removal machines. The spray nozzle head can be recessed into the pavement except for the discharge opening. The spray nozzle head consists of a base and a drive-over cover, which gives good access to the connections to the de-icing agent line and the nozzles; this applies to installation as well as service and repair work. The defrosting agent is preferably passed within the spray nozzle head through channels formed in the cover and the base part. In a further preferred embodiment, the base part is designed as an actual trough in which further installations can be placed, for example the controllable valve. A hydraulic accumulator is also preferably arranged in this trough, which stores a certain amount of de-icing medium under pressure. This de-icing agent is sprayed onto the roadway via the controllable valve and the nozzle when de-icing agent is required. The arrangement of the installations in the bottom part of the spray head results in a compact unit that is optimally protected against damage and is nevertheless easily accessible.
Im folgenden werden Ausführungsbeispiele der Erfindung anhand der Figuren näher erläutert. Dabei zeigt
Figur 1 eine Schnittansicht durch eine erste Ausführungsart des Sprühkopfes mit Bodenteil und Deckel;Figur 2 eine Aufsicht auf den Bodenteil vonFigur 1;Figur 3 eine Aufsicht auf den Deckel vonFigur 1;- Figur 4 eine Schnittansicht durch den wannenförmigen Bodenteil und den Deckel einer weiteren Ausführungsform;
Figur 5 eine Aufsicht auf die Wanne von Figur 4;Figur 6 ein hydraulisches Prinzipschema der Ausführungsform nach Figur 4.
- Figure 1 is a sectional view through a first embodiment of the spray head with bottom part and lid;
- Figure 2 is a plan view of the bottom part of Figure 1;
- Figure 3 is a plan view of the lid of Figure 1;
- FIG. 4 shows a sectional view through the trough-shaped base part and the cover of a further embodiment;
- Figure 5 is a plan view of the tub of Figure 4;
- FIG. 6 shows a basic hydraulic diagram of the embodiment according to FIG. 4.
In Figur 1 ist ein in der Fahrbahn 1 versenkter Sprühkopf im Schnitt gezeigt. Die Fahrbahn ist dabei nur angedeutet und nicht mit ihrem bekannten Schichtaufbau gezeigt. Um eine ungefähre Vorstellung über die tatsächlichen Grössenverhältnisse zu geben, kann als Beispiel eine Höhe des Sprühkopfes von 60 mm angenommen werden. Eine entsprechende Vertiefung muss in der Fahrbahn vorgesehen werden. Der Sprühkopf besteht aus einem Bodenteil 2 und einem Deckel 3. Der Bodenteil 2 (tatsächlicher Durchmesser 260 mm) ist in Figur 2 in Aufsicht gezeigt, der Deckel 3 in Figur 3. Im Bodenteil 2 ist eine seitliche Oeffnung 6 und eine Kammer 7 vorgesehen. Durch die Oeffnung 6 wird die - nur schematisch dargestellte - in die Fahrbahn eingelegte Taumittelleitung 5 (Rohr oder Schlauch) in den Bodenteil eingeführt. Mittels eines Anschlussgewindes 9 wird die mit einem entsprechenden Anschlusstück versehene Taumittelleitung an den nach oben abgewinkelten Taumittelkanal 8 des Bodenteils 2 angeschlossen. Das Bodenteil 2 weist eine vom Rand 10 begrenzte Ausnehmung auf, in welcher der Deckel 3 angeordnet werden kann. Die Oberfläche des Deckels 3 kommt dabei im wesentlichen bündig mit der Oberkante des Randes 10 bzw. mit der Fahrbahnoberfläche zu liegen. Im Zentrum des kreisförmigen Bodenteiles 2 bzw. des Deckels 3 ist eine Bohrung 14 zur Aufnahme eines Gewindebolzens mit Senkkopf vorgesehen. Durch diesen Bolzen kann der Deckel am Bodenteil fixiert werden. Ist der Deckel nicht fixiert, so kann er um die Achse der Bohrung 14 gedreht werden. Im Deckel 3 ist ein ringförmiger Taumittelkanal 12 vorgesehen, der mit dem Kanal 8 des Bodenteiles 2 in Verbindung steht. Eine oder - wie gezeigt - eine Mehrzahl von bekannten Düsen 16, münden einerends in den Kanal 12 und anderends in jeweils eine Auswurföffnung 17 im Deckel 3. Die Düse und die Auswurföffnung sind nach oben geneigt und bilden mit der Horizontalen einen Winkel alpha von ca. 10 Grad. Im gezeigten Beispiel sind sieben Düsen 16 vorgesehen, welche jeweils um ca. 18 Grad versetzt angeordnet sind. Durch eine Drehung des Deckels 3 um die Achse 14 kann die Wurfrichtung für das Taumittel eingestellt werden. Mehrere Dichtungen 18 sind zwischen Deckel und Bodenteil vorgesehen. Der Deckel 3 und das Bodenteil 2 sind überfahrfest ausgestaltet, d.h., dass sie den Belastungen standhalten, die sich ergeben, wenn ein Fahrzeug oder ein Flugzeug über den Sprühkörper rollt oder auf ihm stehen bleibt. Deckel und Bodenteil können dabei aus rostfreiem Stahl, aus Aluminium oder glasfaserverstärktem Kunststoff gefertigt sein. Insbesondere für Fahrbahnen sollte die Oberfläche des Deckels 3 ähnlich rauh wie der Strassenbelag ausgeführt sein, um keine Gefahr für überfahrende Einspurfahrzeuge zu bilden.In Figure 1, a spray head sunk in the
Die Funktion des Sprühkopfes ist dieselbe wie bei bekannten Sprühköpfen. Ueber das steuerbare Ventil der Taumittelsprüheinrichtung wird bei dessen Oeffnung Taumittel via die Kanäle 8 und 12 an die Düsen 16 geleitet und durch diese ausgeworfen. Nach einer vorbestimmten Zeitspanne schliesst das steuerbare Ventil, und die Sprühung wird beendet.The function of the spray head is the same as that of known spray heads. Via the controllable valve of the de-icing spray device, when the de-icing agent is opened, de-icing agent is passed through the
Figur 4 zeigt ein weiteres Ausführungsbeispiel im Schnitt, Figur 5 eine Aufsicht auf das Bodenteil dieser Ausführung. Zunächst sei aber anhand von Figur 6 der hydraulische Aufbau dieser Ausführung erläutert. Mit 20 und 21 sind zwei Deckelteile des Sprühdüsenkopfes bezeichnet, welche jeweils im wesentlichen dem bisher beschriebenen Deckel 3 entsprechen, also mindestens eine Düse und eine Auswurföffnung aufweisen. Mit 22 und 23 sind jeweils zugehörige steuerbare Ventile bezeichnet. 24 und 25 sind zwei Hydrospeicher. Diese Elemente sind bekannt. Sie speichern eine bestimmte Taumittelmenge unter Druck. Das Taumittel befindet sich dabei im Flüssigkeitsraum 32 des Druckbehälters 24 bzw. 25, welcher Raum mittels einer flexiblen Membrane von einem Gasraum 30 getrennt ist. Dieser ist über ein Ventil 31 mit Gas von vorbestimmtem Druck füllbar. Die Hydrospeicher werden aus der Taumittelleitung 27 über ein Rückschlagventil 26 mit Taumittel gefüllt, bis ein Druckgleichgewicht zwischen Gasraum und Flüssigkeitsraum jedes Hydrospeichers erreicht ist. Diese Speicher enthalten nun eine definierte Menge unter Druck stehendes Taumittel. Zur Ausbringung des Taumittels auf die Fahrbahn wird nun eines der Ventile 22, 23, oder werden beide Ventile geöffnet. Die Hydrospeicher entleeren sich infolge des Gasdrucks über die Düsen. Nachfolgend werden die Ventile 22, 23 geschlossen, und die Hydrospeicher füllen sich erneut mit Taumittel aus der Leitung 27. Die Vorteile einer solchen Anordnung sind in einer am 26. Mai 1990 eingereichten europäischen Patentanmeldung derselben Anmelderin, wie der vorliegenden Anmeldung, erläutert worden.Figure 4 shows a further embodiment in section, Figure 5 is a plan view of the bottom part of this embodiment. First, however, the hydraulic structure of this embodiment will be explained with reference to FIG. 6. 20 and 21 designate two cover parts of the spray nozzle head, each of which essentially corresponds to the
Figuren 4 und 5 zeigen nun einen Sprühkopf, in welchen die genannten hydraulischen Elemente integriert sind. Dieser Sprühkopf weist einen Bodenteil auf, welcher als Wanne 42 ausgestaltet ist. Der Deckelteil ist dreiteilig und umfasst einen ersten Teil 33, welcher auf dem Wannenrand aufliegt. Dieser Deckelteil weist zwei Ausnehmungen auf, in welche jeweils das Deckelteil 20 bzw. 21 eingesetzt wird. Diese Deckelteile sind gleich aufgebaut wie das Deckelteil 3 der Figuren 1 bis 3. In Figur 4 sind diese Deckelteile 20, 21 jeweils oberhalb der entsprechenden Ausnehmung im Deckelteil 33 gezeigt. Die Taumittelleitung im Deckel 33, 20, 21 erfolgt über jeweils einen Kanal 38 im Teil 33 in jeweils einen ringförmigen Kanal 52 in den Teilen 20, 21 und zu den Düsen 36. Die Fixation der Teile 20, 21 am Teil 33 erfolgt jeweils mittels eines versenkten Gewindebolzens in einer zentralen Gewindebohrung 44. Somit sind auch die kreisförmigen Deckelteile 20, 21 im Deckelteil 33 drehbar, wenn der Gewindebolzen gelockert ist, um die Wurfrichtung für das Taumittel zu justieren.Figures 4 and 5 now show a spray head in which the hydraulic elements mentioned are integrated. This spray head has a base part which is designed as a
In der Wanne sind die Installationen gemäss Figur 6 angeordnet. In den Figuren 4 und 5 sind diese Installationen nur schematisch dargestellt. Natürlich ist auch eine andere räumliche Anordnung möglich. Es kann auch nur ein, dafür grösserer, Hydrospeicher anstelle der beiden Speicher 24, 25 verwendet werden. Bei einer Taumittelsprüheinrichtung ohne Hydrospeicher können in der Wanne 42 auch nur die Ventile 22, 23 angeordnet sein. Dies allenfalls auch, wenn Hydrospeicher in einem separten Schrank am Fahrbahnrand angeordnet sind.The installations according to FIG. 6 are arranged in the tub. These installations are only shown schematically in FIGS. 4 and 5. Another spatial arrangement is of course also possible. It is also possible to use only one, but larger, hydraulic accumulator instead of the two
Ein Sprühkopf mit zwei Sprühtellern 20, 21, sei es mit wannenförmigem Installationsbodenteil oder mit normalem Bodenteil 2, eignet sich insbesondere für Flughafenanwendungen, da dort das Taumittel grossflächiger ausgebracht werden muss als bei Strassen. Bei Strassen, insbesonders Autobahnen, tritt nämlich durch die hohe Fahrzeugdichte eine erwünschte starke Verschleppung des Taumittels ein, was dessen gleichmässige Verteilung auch bei grösseren Abständen zwischen den Sprühköpfen sicherstellt. Mit zwei Sprühtellern kann dagegen bereits durch den Sprühkopf eine gute Flächendeckung mit Taumitteln erzielt werden.A spray head with two
Die gezeigten Ausführungsbeispiele bieten eine leichte Einstellbarkeit der Wurfrichtung für das Taumittel sowie eine gute Zugänglichkeit von oben für die Installation und Wartungsarbeiten. Es sind natürlich andere Ausführungen möglich, bei denen der ganze Sprühkörper in der Fahrbahn versenkt ist, und der Fahrbahnbelag den Sprühkörper bis auf eine Oeffnung für den Taumittelauswurf überdeckt. Solche Ausführungsbeispiele sind hingegen nicht wartungsfreundlich.The exemplary embodiments shown offer easy adjustment of the throwing direction for the defrosting agent and good accessibility from above for installation and maintenance work. Of course, other designs are possible in which the entire spray body is sunk into the roadway and the road surface covers the spray body except for an opening for the de-icing agent ejection. Such embodiments, however, are not easy to maintain.
Claims (10)
- Sprayhead at a stationary de-icing medium spray installation for roadways, taxiways and runways, in which a plurality of sprayheads which each comprise one or a plurality of spray nozzles are arranged following the course of the respective way, and whereby the spray nozzles in order to discharge the de-icing medium onto the respective way are supplyable via a de-icing medium conduit and by means of controllable valves by pressurized de-icing medium, characterized in that every spray-head comprises a spray nozzle body (2,3; 20,21,33,42) adapted to be sunk into the respective way, on which at least one spray opening (17) for the discharge of the deicing medium is foreseen, which can be located substantially aligned with the surface of the respective way or lower than the surface of the respective way, and that the spray nozzle body comprises a bottom part (2) having a connection (9) for the de-icing medium conduit and at least one cover (3) which is fixable at the bottom part and which can be rolled over, in which the spray nozzle (16) and the spray opening (17) are located.
- Sprayhead according to claim 1, characterized in that a first de-icing medium channel (8) located in the bottom part (2) and extending from the connection (9) to the cover (3) and a second de-icing medium channel (12) connecting to the first one are foreseen which leads the de-icing medium to the spray nozzle (16).
- Sprayhead according to claim 2, characterized in that the de-icing medium channel (12) has a substantially circular cross-section and leads the de-icing medium to a plurality of spray nozzles arranged side by side along the channel.
- Sprayhead according to one of the claims 1 to 3, characterized in that in case of a loosened fixation (14) of the cover (3) at the bottom part (2) the cover is rotatable where with the direction of throw of the de-icing medium can be set.
- Sprayhead according to one of the claims 1 to 4, characterized in that the spray-nozzle (16) and the spray opening (17) are slanted upward by about 10° relative to the horizontal plane.
- Sprayhead according to one of the claims 1 to 5, characterized in that the bottom part has the shape of a trough (42) in which at least one of the controllable valves are located.
- Sprayhead according to claim 6, characterized in that at least one hydro reservoir (24,25) is located in the trough which is feedable out of the de-icing medium conduit (27) and can be emptied through the nozzle (16) by means of the valve (22,23).
- Sprayhead according to one of the claims 1 to 7, characterized in that the cover is a tri-particle structure and is formed of a first part (33) which can be rolled over and lies on the edge of the trough, and of two second parts (20,21) which can be rolled over and are supported in the first part, on which the spray nozzles (16) and the spray openings (17) are foreseen.
- Sprayhead according to claim 8, characterized in that if the support is loosened the second cover parts are respectively rotatable in the first cover part.
- Sprayhead according to claim 8 or 9, characterized in that every second cover part (20,21) comprises an annular shaped de-icing medium channel (52) which is supplied from a respective de-icing medium channel (38) in the first cover part (33).
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP90111340A EP0461295B1 (en) | 1990-06-15 | 1990-06-15 | Sprayhead for a stationary de-icing liquid spray installation for roadways, taxiways and runways |
AT90111340T ATE101418T1 (en) | 1990-06-15 | 1990-06-15 | NOZZLE HEAD ON A STATIONARY DEFROSTING DEVICE FOR DRIVEWAYS, TAXIWAYS AND RUNWAYS. |
DK90111340.7T DK0461295T3 (en) | 1990-06-15 | 1990-06-15 | Spray nozzle head at a stationary device for spraying antifreeze on runways, rollers and take-off / landing lanes |
DE90111340T DE59004563D1 (en) | 1990-06-15 | 1990-06-15 | Spray nozzle head on a stationary de-icing agent device for runways, taxiways and runways. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP90111340A EP0461295B1 (en) | 1990-06-15 | 1990-06-15 | Sprayhead for a stationary de-icing liquid spray installation for roadways, taxiways and runways |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0461295A1 EP0461295A1 (en) | 1991-12-18 |
EP0461295B1 true EP0461295B1 (en) | 1994-02-09 |
Family
ID=8204102
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90111340A Expired - Lifetime EP0461295B1 (en) | 1990-06-15 | 1990-06-15 | Sprayhead for a stationary de-icing liquid spray installation for roadways, taxiways and runways |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0461295B1 (en) |
AT (1) | ATE101418T1 (en) |
DE (1) | DE59004563D1 (en) |
DK (1) | DK0461295T3 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10260934A1 (en) * | 2002-12-20 | 2004-07-01 | Andreas Leonhard | Automatic gritter or salter spreading installation for use in confined location for distribution of salt or grit to prevent sliding on black ice has distribution jets though which salt or grit is spread pneumatically |
KR100464356B1 (en) * | 2002-09-16 | 2005-01-03 | 로얄정보기술 주식회사 | In order to prevent freezing of the road the system which jet the liquid which melts the ice |
US6955304B2 (en) | 2003-10-06 | 2005-10-18 | Energy Absorption Systems, Inc. | Anti-icing spray assembly |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CZ300601B6 (en) * | 1998-03-20 | 2009-06-24 | Fribair S. A. | Method for dispensing a deicing liquid and spraying arrangement for making the same |
DE59800142D1 (en) | 1998-03-20 | 2000-06-08 | Fribair Sa | Method and device for the stationary application of liquid de-icing agent |
US6443176B1 (en) | 1999-11-30 | 2002-09-03 | Hilmar Lumber, Inc. | Flush valve with rotatable grate |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR18209E (en) * | 1912-06-18 | 1914-02-28 | Henri Joseph Didier | Device removing dust raised by the passage of motor vehicles |
GB288364A (en) * | 1927-01-05 | 1928-04-05 | William Mullard Stoddert Wyld | Improvements in apparatus for spraying tennis courts, sports grounds and other open places |
CH658411A5 (en) * | 1982-09-10 | 1986-11-14 | Boschung Mecatronic Ag | ELECTROMAGNETICALLY CONTROLLABLE AND CONTROLLABLE SPRAY VALVE FOR LIQUIDS AND SYSTEM WITH SUCH SPRAY VALVES. |
FR2574833B1 (en) * | 1984-12-14 | 1987-01-09 | Lamy Perret Emile | DEVICE FOR CLEANING, WATERING AND DISINFECTING URBAN SIDEWALKS |
DE3515896A1 (en) * | 1985-05-03 | 1986-11-06 | Parga Park- und Gartentechnik GmbH, 7127 Pleidelsheim | Watering installation for the application of a water layer to the roadway of a test track |
-
1990
- 1990-06-15 AT AT90111340T patent/ATE101418T1/en not_active IP Right Cessation
- 1990-06-15 DK DK90111340.7T patent/DK0461295T3/en active
- 1990-06-15 EP EP90111340A patent/EP0461295B1/en not_active Expired - Lifetime
- 1990-06-15 DE DE90111340T patent/DE59004563D1/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100464356B1 (en) * | 2002-09-16 | 2005-01-03 | 로얄정보기술 주식회사 | In order to prevent freezing of the road the system which jet the liquid which melts the ice |
DE10260934A1 (en) * | 2002-12-20 | 2004-07-01 | Andreas Leonhard | Automatic gritter or salter spreading installation for use in confined location for distribution of salt or grit to prevent sliding on black ice has distribution jets though which salt or grit is spread pneumatically |
US6955304B2 (en) | 2003-10-06 | 2005-10-18 | Energy Absorption Systems, Inc. | Anti-icing spray assembly |
Also Published As
Publication number | Publication date |
---|---|
DK0461295T3 (en) | 1994-03-21 |
EP0461295A1 (en) | 1991-12-18 |
DE59004563D1 (en) | 1994-03-24 |
ATE101418T1 (en) | 1994-02-15 |
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