DE19934138A1

DE19934138A1 - Method to empty hoses wound on drums, especially drum sprinkler machines; involves applying compressed air to first sealed end and forcing water from second end by rotating drum and unwinding hose

Info

Publication number: DE19934138A1
Application number: DE1999134138
Authority: DE
Inventors: Johannes Willems
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-11-08
Filing date: 1999-11-08
Publication date: 2001-05-10

Abstract

The method involves hermetically sealing a first detachable end of the hose (2) and impinging it with compressed air. The compressed air is then stopped and the first end of the hose is opened. The water or other medium in the hose is then forced out of the hose through its second end by rotating the drum (1) and unwinding the hose off from the drum. preferably, an additional drain valve is installed at the second end of the hose. An Independent claim is included for a sprinkler machine for use with the method.

Description

Bei dem Ausziehen von Schläuchen der insbesondere in Landwirtschaft und Gartenbau eingesetzten Beregnungsmaschinen, wird mit zunehmender Schlauchdicke, Schlauchlänge und in Abhängigkeit von der zu bewässernden Kultur oft die Zugkraft des Schleppers überschritten. Daher werden größere Beregnungsmaschinen oft mit einem Vakuumkompressor ausgestattet oder die Maschine muß durch die Kultur gefahren werden, wobei der Regnerwagen fixiert werden muß um die Maschine beim Fahren abzuwickeln. Bei extrem großen Schlauchlängen (< 700 m) wird die Methode des "Durchfahrens mit Maschine" unumgänglich sein. Die Nachteile des Vakuumkompressors sind die hohen Kosten des Kompressors und der Anschlußteile (ab 2000,- DM Aufpreis der Anlage), sowie die Arbeit und Zeit des Anschließens per Gelenkwelle und das Laufenlassen des Kompressors. Einziger Vorteil des Kompressors: Der Transport der Maschine zum nächsten Einsatzort erleichtert sich durch das Mindergewicht. Die Nachteile der Durchfahrmethode sind: größere Beschädigungen der Kultur durch das hohe Gewicht und die meist größere Spurweite der Beregnungsmaschine, sowie der extrem hohe Zeitaufwand des Aufstellens. Die neue Methode zur Schlauchentleerung ist wesentlich günstiger als der Vakuumkompressor und kostet kaum Zeit.When removing hoses, especially in Agriculture and horticulture used Irrigation machines, with increasing hose thickness, Hose length and depending on the irrigated Culture often exceeded the traction of the tractor. Therefore, larger irrigation machines often come with one Vacuum compressor equipped or the machine has to go through the culture are driven, with the sprinkler fixed to unwind the machine while driving. At The method becomes extremely long hose lengths (<700 m) of "driving through with a machine". The Disadvantages of the vacuum compressor are the high cost of the Compressor and the connecting parts (from 2000, - DM surcharge the system), as well as the work and time of connection via PTO shaft and running the compressor. The only advantage of the compressor: the transport of the The machine to the next job site is made easier the lighter weight. The disadvantages of the drive-through method are: major damage to the culture due to the high Weight and the mostly larger track gauge Irrigation machine, as well as the extremely high expenditure of time of the Setting up. The new method for hose emptying is much cheaper than the vacuum compressor and costs no time.

Während des Aufbauens einer Beregnungsanlage, noch vor dem Ausziehen des Schlauches, sollte Druckluft in die Maschine eingebracht werden. Die Druckluft soll aber nicht wie beim Vakuumkompressor üblich von der Wasserzuleitungsseite, sondern am Regnerwagen hineingepumpt werden. Um die Druckluft bereitzustellen eignen sich verschiedene Möglichkeiten: Durch eine eventuell vorhandene Druckluftanlage des Schleppers, einen kleinen zapfwellengetriebenen -, oder einen kleinen elektrischen Kompressor (es reicht wahrscheinlich ein Kompressor, um Fahrrad-, oder Autorreifen aufzupumpen; möglicherweise per 12 V Batteriestrom vom Schlepper, oder der Beregnungsanlage gespeist). Am Regnerwagen sollte dafür ein Druckluftanschlußstück mit einem Ventil (z. B. ein 1/2" Kugelhahn) angebracht sein. Damit die Luft nicht direkt entweicht, sollte statt der Düse ein Stopfen in den Regner montiert, oder unter dem Regner sollte ein größeres, der Wassermenge beim Beregnen angepaßtes Ventil eingebaut sein (Hierfür eignet sich ebenfalls ein Kugelhahn). Die Wasserzuleitungsventile der Beregnungsanlage (Bypass) sollen groß dimensioniert und vollkommen geöffnet sein. Während des etwa 2 Minuten dauernden Einbringens der Druckluft können noch andere bei der Aufstellung von Beregnungsanlagen üblichen Arbeiten verrichtet werden. Durch dieses Einbringen der Luft kann das Wasser nur zu einem kleinen Teil aus der Maschine herausgedrückt werde, da die Luftmenge der genannten Kompressoren zu gering ist. Es entstehen in einigen der vorderen Wicklungen Luftkammern. Bei diesen Wicklungen muß das Wasser über den höchsten Punkt gedrückt werden. Dadurch entsteht mit jeder weiteren Wicklung ein größerer Gegendruck bis schließlich immer weniger Wasser aus der Maschine austritt. Danach ist der Stopfen auf dem Regner wieder zu entfernen bzw. das große Absperrventil zu öffnen. Beim nachfolgenden langsamen Ausziehen des Schlauches in die zu bewässernde Kultur, bauen diese teilgefüllten Wicklungen durch die Drehbewegung zur anderen Schlauchseite (zur Maschine hin) Druck auf, wodurch sich das Wasser selbst hinausdrückt. Es sollen sogar einige Meter des Zuleitungsschlauches angeschlossen sein, damit das ausfließende Wasser nicht den Boden an der Maschine aufweicht, um den Transport der Maschine zum nächsten Einsatzort nicht zu erschweren.While building an irrigation system, still Before pulling out the hose, compressed air should be in the Machine. The compressed air should not from the usual as with the vacuum compressor Water supply side, but on the sprinkler wagon be pumped in. To provide the compressed air There are various options: one possibly existing compressed air system of the tractor, a small PTO-powered - or one small electric compressor (enough probably a compressor to bike, or Inflating car tires; possibly by 12 V. Battery power from the tractor or the irrigation system fed). On the sprinkler car should be there for Compressed air connector with a valve (e.g. a 1/2 " Ball valve). So that the air is not direct escapes, a plug should be inserted in the nozzle instead of the nozzle Mounted sprinkler, or under the sprinkler should be one Larger valve adapted to the amount of water when watering be installed (this is also suitable for Ball valve). The water supply valves of the Irrigation system (bypass) should be large and be completely open. During the about 2 minutes The continuous introduction of compressed air can also be used by others usual when installing irrigation systems Work to be done. By introducing the Air can only partially escape the water Machine is pushed out because the air volume of the mentioned compressors is too low. It arise in some of the front windings air pockets. With these The water must wind over the highest point be pressed. This creates with each other Wind up a larger back pressure until finally always less water comes out of the machine. After that is the Remove the stopper on the sprinkler or the big one Open shut-off valve. The following slow Pulling out the hose into the culture to be irrigated, build these partially filled windings through the Rotary movement to the other side of the hose (towards the machine) Pressure on what the water pushes itself out. There should even be a few meters of the supply hose be connected so that the flowing water does not softens the ground on the machine for transportation not to complicate the machine to the next location.

Claims

1. Procedure for emptying on drums wound hoses, especially for dewatering from in agriculture, horticulture and the like used drum irrigation machines, wherein in a first process step, the first unwindable End of a hose sealed airtight and with Compressed air is applied in a second Process step the pressurized air adjusted and the first end of the hose opened and in a third step in the process Unwind the hose from the drum by turning it the drum has a medium in the hose, preferably water, through the second end of the Hose is pushed out of the hose.

2. Procedure for emptying on drums wound hoses, especially for dewatering from in agriculture, horticulture and the like used drum irrigation machines, the first unwindable end of a hose airtight sealed and pressurized with compressed air, and when unwinding the hose from the drum Rotate the drum and the compressed air in the hose existing medium, preferably water, through the second end of the hose out of the hose is pushed out.

3. The method according to claim 1 or claim 2, characterized characterized in that the second end of the hose in is essentially fully open, preferably a additional drain valve at the second end of the Hose is installed.

4. The method according to claim 1 or 3 thereby characterized in that the compressed air supply for takes about two minutes.

5. The method according to any one of claims 1 to 4, characterized characterized in that the compressed air supply with a pressure of at least 1.5 bar.

6. The method according to any one of claims 1 to 5, characterized characterized in that a compressed air supply Air brake system, preferably a tractor, is used.

7. The method according to any one of claims 1 to 5, characterized characterized in that for pressurized air Compressor, preferably a PTO driven Compressor or an electric compressor used becomes.

8. The method according to claim 7, characterized in that that the electric compressor preferably over the On-board network of either the tractor or one Irrigation system is supplied with energy.

9. Irrigation machine for carrying out a method according to one of claims 1 to 8, with one on one Reel with a hose in the drum essentially completely openable water inlet or -Outlet on the part of the drum and one over the hose connected to the drum and for winding or unwinding the hose from or on the drum Sprinkler wagon with a water outlet, thereby characterized in that the sprinkler car in the area in front of the Water outlet has a compressed air connection, via which the hose for dewatering with compressed air can be acted upon, the water outlet of the Rain truck is lockable.

10. Irrigation machine according to claim 9, characterized characterized in that the compressed air connection is a manual operable valve comprises, by means of which the Compressed air is applied.

11. Irrigation machine according to claim 9, or claim 10, characterized in that the valve for Close the water outlet from the sprinkler cart manually operable valve, preferably a Slider, particularly preferably a ball valve.

12. Irrigation machine according to claim 9 or claim 10, characterized in that the compressed air connection is arranged below the sprinkler.