AU2003236429A1 - Liquid measuring and distributing device for irrigation water - Google Patents
Liquid measuring and distributing device for irrigation water Download PDFInfo
- Publication number
- AU2003236429A1 AU2003236429A1 AU2003236429A AU2003236429A AU2003236429A1 AU 2003236429 A1 AU2003236429 A1 AU 2003236429A1 AU 2003236429 A AU2003236429 A AU 2003236429A AU 2003236429 A AU2003236429 A AU 2003236429A AU 2003236429 A1 AU2003236429 A1 AU 2003236429A1
- Authority
- AU
- Australia
- Prior art keywords
- liquid measuring
- measuring unit
- valve
- water
- reservoir
- 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.)
- Abandoned
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/16—Control of watering
- A01G25/162—Sequential operation
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Flow Control (AREA)
- Fluid-Driven Valves (AREA)
Description
AUSTRALIA
Patents Act 1990 COMLETE SPECIFICATION STANDARD PATENT MEASURED DELIVERY SEQUENTIAL WATER IRRIGATOR The following statement is a full description of this invention, including the best method of performing it known to me.
£0'd TTtTS896 s0 ISOd '3 SM3N NiaanON3a 62;0T 2ooz-Dn-sz MEASURED DELIVERY SEQUENTIAL WATER
IRRIGATOR
This invention relates to improvements in devices to measure and deliver irrigation water through multiple delivery locations in a sequential manner.
There has been a problem of delivery of a reliable quantity of irrigating water through small bore tube for growing plants. Some systems employ a restricted orifice at the discharge point to attempt to control the volume. This system can be unreliable due to supply fluid pressure variations and a degree of blockage. Electric power is sometimes used for electronic management this power is not always readily available in remote locations and is vulnerable to disruption by weather and physical damage and supply and connection is relatively expensive. It has also been difficult to programme different water application rates or volume to suit a range of plant size, type and soil conditions on a common irrigation system. There is no measurement of actual quantity delivered in fact an individual station may be blocked and deliver no water while the other pert of the system continues to run, These problems are overcome by the present invention which provides a selected quantity of water to each station in a sequential and measured manner, This quantity can be varied for each individual station so that every station in a line system can deliver the same quantity or the basic unit adjusted to give a unique selected quantity.
The device consists of a metering valve that directs a specific and finite volume into an inverted reservoir dome this will happen until a pressure level approximately equal to supply fluid pressure is reached and this will occur regardless of the size of the selected reservoir this is not a time related control and when the operating pressure is reached the valve will self activate and dumap the water accumulated in the reservoir to the nominated position and at the same time signal activate the following valve station in a sequential order to commence its fill cycle it is expected valve meters will often be employed in a multiple unit string and the reservoir size for each unit can be selected on an individual basis.
The meter valve in this system is self activated and utilises the water supply pressure energy and can deliver a positive reliable and selectively varied quantity at a nominated station and as the quantity of water per cycle is finite and clearly indicated the correct total quantity to be delivered at a location can be selected and managed.
The device is usually employed in a multiple unit string and each station consists of two spindle valves one of which is the primary Gold TT*,TG896 80 ISOd 3 SM3N Niaan3N3a ot-:oT eooz-Dw i-sz ~0d TTtTS996 88 ISOd '8 SM3N NI~Sfl3N3S 0*:OT seer-DntJ-~r metering valve (MV) attached to an inverted dome reservoir.
Reservoir size selected for the quantity of liquid required and the other is a switch control valve (SV) for fluid supply to the primary valve and detects and relay signals at stages of operation and to signal start the cycle in the following station ensuring sequential operation.
The invention employs few moving parts. In this form two sliding piston valve spindles which is made possible by employing the available water supply pressure energy a feature that allows this to work effectively is the inverted dome reservoir which supplies a pressure fluid flow energy source after the supply water flow is cut off. It can do this because the inverted reservoir accepts a quantity of liquid with an entrapped pocket of air above the liquid that is compressed by the supply water pressure and expands to keep the reservoir liquid under pressure that is initially close to mains water supply pressure when initial small quantity of water from the reservoir is employed to operate the valve spindle. This feature eliminates the normal restraint and frustration experienced when attempting to utilise water supply pressure energy to operate and close a valve which can result in rapid pressure reduction related to small valve flow rate restrictions as the valve nears closure, An additional valve spindle operating feature is the selecting of different diameter ends to provide a floating hydraulic presure application to utilise fluid pressure energy to correctly position the valve spindle for start then flow cycle and finish of valve operation.
The system may consist of a number of units wit each outlet positioned as and where required and interconnected wit suitable so water hose or conduit to carry the water supply and sequential signals. The device may be made of any suitable material such as metal or mnoulded plastic.
To assist with understanding the invention reference will now be made to the attached drawings which show one example of the invention.
In the Drawings;, Figure 1. Shows one example of an operating unit which consists of a main valve (MV) and a signal valve (SV) both at the start of a cycle position supply water 1 then flows across spindle valve port 2 enters MV cylinder at 3 and pushes spindle valve 4 until port 5 is in line with opening 6 which is the entry to the inverted reservoirs with bottom section only illustrated and remains in this position until a significant design pressure has been generated by the flow of water into the sealed inverted reservoir and the trapped air pocket is compressed further movement of the spindle valve occurs when sufficient force is generated by water pressure on the end of the spindle valve 4 in zone 3 with control balance force present on 1oa the opposite end of the spindle at 7. The area of spindle at this end .Lo"-d TTVT9896 90 ISOJ 3 SM3N Niaan3N39 Ttp:oT 2eoz-Dnv-sz SL0d TTI'TCSSS 80 ISOd '3 SM~N NISSfl3H3S 0! LOOZ-Dflti-SZ is smaller to ensure a movement for loft to right as fluid pressure rises when the reservoir operating pressure has been reached the spindle will move further to the right and opening 6 will connect to the reduced diameter section of the spindle S and allows fluid flow 105 to escape the reservoir flowing out port 9 this pressure flow exerts a force on the end of SY spindle 10 causing the spindle to slide more cutting off the supply pressure source by closing port 2 and at the same time releasing the water column at the front end of the MY spindle at location 3 at port 11 watr flows via the reduced 110 diameter section 12 and exits at 13. Removal of the fluid supply and pressure at zone 3 allows the fluid pressure at 7 to return the MV spindle to the left hand start position and in so doing aligns and opens port 14 so that the main charge of water in the reservoir can flow across the reduced diameter section 8 of the spindle and 115 exit at 15 which is directed to the desired water dump point for irrigation use an ongoing effect of the initial flow of water from duct 13 is directed to the SV at the following station duct 17 and this is the signal for the following station to commence operation in a sequential manner, The signal flow and SY spindle movement 120 has the effect of opening water supply to following SV which flows through port 16 of the SY that has just finished its water cycle. This action ensures sequential operation for as many units as are assembled and connected in series for the operating line, Sold TTVT9896 so I~ NHNiaa3 ISOd 3 SM3N Niaan3N39 ztp:et 2ooz-Dnt:,-Qz
Claims (14)
1. A liquid measuring and distribution unit comprising two slide action valve spindles and an inverted reservoir dome that operates off supply water pressure energy and performs in sequential operation when connected in series.
2. A liquid measuring unit of claim 1 that employs an inverted pressure dome reservoir to collect a measure of liquid for release for irrigation purposes.
3. A liquid measuring unit of claim 1 that generates a pressure cycle in the reservoir dome and this pressure variation is utilised to control valve slide position and operation with spindle position operating and moving in reaction to pressure.
4. A liquid measuring unit of claim 1 that employs the stored fluid pressure energy of the compressed air pocked in the inverted dome to cause and complete valve action to open and close ports.
A liquid measuring unit of claim 1 where differentia axial forces are applied to the valve slide spindle due to different end diameters and areas and directs valve operation and timing.
6. A liquid measuring unit of claim 1 where axial differential forces are applied to the valve slide spindle due to different end diameters and them ensures valve slide action and direction of movement.
7. A liquid measuring unit of claim 1 where slide valve spindle position of a unit that has completed a cycle opens the valve port to supply water to the following unit and ensure sequential operation.
8. A liquid measuring unit of claiml where screw or quick connect reservoir such as standard beverage containers of a range of size can be used as the inverted dome reservoir.
9. A liquid measuring unit of claim I where individual selection of inverted dame reservoirs determines the amount of water collected at each individual site independent of reservoir size of other units in line.
A liquid measuring unit of claimlI where the quantity of water collected and distributed at each individual site is TT*T9896 80 I~ 3S3 i&O3 t:Tse-nJc ISOJ :3 SM3N NiaanON39 Etp:oT 2ooz-Dnv-Qz unaffected over a wide range of normal water supply pressure.
11. A liquid measuring unit of claim I where the selected quantity of water is supplied in a useful batch quantity or slug for application at the site in a repetitive wet application and soak drain between application.
12. A liquid measuring unit of claim 1 where the selected quantity of water is supplied at the site in a solid low pressure liquid state to avoid wind and evaporation loss factors associated with continuous spray mist and drip applications.
13, A liquid measuring unit of claim 1 were the selected quantity of water is released in a batch manner through larger outlet openings than mist or drip feed arrangements which tend to be small openings to restrict flow and as such are vulnerable to blockage by small solid particles.
14. Liquid measuring unit substantially as herein described with reference to the accompanying drawing. NAME OF APPLICAN DATE ri*%--Jp~o 2A*LC- Zs./a 1(O37 OT'd TTVTG896 80 ISOd 'S SM3N Niaan3N3a vv:ei 2ooz-Dnv-sz ST d TT*TS896 80 iSOd '3 SM3N Ni~~~3N3S ST
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003236429A AU2003236429A1 (en) | 2003-08-25 | 2003-08-25 | Liquid measuring and distributing device for irrigation water |
PCT/AU2004/001133 WO2005018306A1 (en) | 2003-08-25 | 2004-08-25 | Measured delivery sequential water irrigator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003236429A AU2003236429A1 (en) | 2003-08-25 | 2003-08-25 | Liquid measuring and distributing device for irrigation water |
Publications (1)
Publication Number | Publication Date |
---|---|
AU2003236429A1 true AU2003236429A1 (en) | 2005-03-17 |
Family
ID=34200681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2003236429A Abandoned AU2003236429A1 (en) | 2003-08-25 | 2003-08-25 | Liquid measuring and distributing device for irrigation water |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU2003236429A1 (en) |
WO (1) | WO2005018306A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023209720A1 (en) * | 2022-04-28 | 2023-11-02 | Movshoviz Elad | Sequential transitory spraying from a pipeline |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1098533A1 (en) * | 1981-03-16 | 1984-06-23 | Всесоюзный Научно-Исследовательский Институт Комплексной Автоматизации Мелиоративных Систем | Water supply system |
DE3440867A1 (en) * | 1984-11-08 | 1986-05-07 | Ing. H. Gundermann GmbH & Co, 8000 München | Watering installation and method for its operation |
NL187096C (en) * | 1987-09-24 | 1991-06-03 | Innocom Electro B V | Device for the automatic watering of plants. |
WO1991002455A1 (en) * | 1989-08-23 | 1991-03-07 | Emil Richard Smith | Valve apparatus |
-
2003
- 2003-08-25 AU AU2003236429A patent/AU2003236429A1/en not_active Abandoned
-
2004
- 2004-08-25 WO PCT/AU2004/001133 patent/WO2005018306A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2005018306A1 (en) | 2005-03-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MK1 | Application lapsed section 142(2)(a) - no request for examination in relevant period | ||
NB | Applications allowed - extensions of time section 223(2) |
Free format text: THE TIME IN WHICH TO REQUEST EXAMINATION HAS BEEN EXTENDED TO 30 SEP 2008. |
|
MK4 | Application lapsed section 142(2)(d) - no continuation fee paid for the application |