CN1200685A - Agricultural and other spraying system - Google Patents
Agricultural and other spraying system Download PDFInfo
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- CN1200685A CN1200685A CN96197950.XA CN96197950A CN1200685A CN 1200685 A CN1200685 A CN 1200685A CN 96197950 A CN96197950 A CN 96197950A CN 1200685 A CN1200685 A CN 1200685A
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- chamber
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- 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
- B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
- B05B7/0892—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point the outlet orifices for jets constituted by a liquid or a mixture containing a liquid being disposed on a circle
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- 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
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
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- Agricultural Chemicals And Associated Chemicals (AREA)
- Special Spraying Apparatus (AREA)
Abstract
A method and apparatus for droplet generation in agricultural or other spraying comprises supplying air and liquid to a supply chamber (28, 102) having an outlet orifice (38, 114), and entraining the liquid in the air flow for droplet formation. Air and liquid are injected into the supply chamber which has a closed end wall (42, 108) on which the liquid forms a continuous film which moves outwards towards the orifice for droplet formation thereat. The supply of air and liquid to a chamber wall (42, 108) or target from which the liquid proceeds with direction change to an entrainment outlet at suitable pressures causes droplets formed to have a droplet size particularly suitable for effective coating of plant material and the momentum provided to the droplets by the air enables controlled direction of the resulting spray mist even at very low liquid volumes per hectare.
Description
The invention relates to a kind of a kind of method and apparatus that is applied to the sprinkling system of agricultural and gardening and other aspect, the present invention is specially adapted to some sprinkling systems like this, as in our the more previous disclosed sprinkling system relevant for spray boom formula spraying machine of patent applications, this spray boom formula spraying machine has the falling type jet pipe of band nozzle.Yet the present invention is not only applicable to falling type jet pipe type spraying machine, can be applied to similar commonly by the spraying machine that sprays above equally, and can be applicable to water jet and other hand-held spraying machine of some purposes.In addition, the present invention also is applied in the harvester, for example is used for the potato of results sprayed in potato harvester handling and relevant application is for example sprayed processing to the potato that enters apotheca or transport apotheca.Other is used and may be occurred, to be easy to the processing material of low dosage ratio is provided be its favourable part to spraying operation therein, other some application comprise that spending the ice stream body carries out the deicing processing to aircraft, and industrial use comprises some industrial inject process technical process.The present invention being used to spray some much higher liquid such as ratio of viscosities water, is fully possible.
About the general problem that produces of various spraying machines is when producing the drop spraying with spraying machine, to the crop of desire sprinkling or effective osmosis of other material.Usually employed various forms of nozzles, wherein the spraying of drop just by means of under pressure by the energy that supply produced of liquid.
Yet this conventional equipment can not reach the desired level to the crop infiltration.
Made the various formulas of tasting to improve, comprised and use the device that flows with the joining generation air of plain nozzle the crop osmosis.Yet it is heavy and quite invalid that this device has been proved to be.
Also trial once utilizes the effect of electrostatic charge to make the drop of injection attracted on the crop material and deposits thereon.These schemes also have been proved to be quite invalid not acquisition and have used widely.
Crop for example under the situation such as potato, utilize a following jet pipe to spray crop at the lower position below the crop integral shroud, proved that it compares with conventional flusher and have substantial improvement, the lower surface of the topped leaves of plants of its energy, and common flusher can only be ejected into drop above the integral shroud from top.
Known to the applicant another motion formerly is to utilize a kind of gas feed method that interrelates with the liquid feed.Yet the liquid feed is directly to deliver on the deflection plate through a current limiter, and preliminary atomizing just takes place before working as liquid and compressed air mixes herein.Compressed air forces consequent little drop to be ejected into the inner face of overflow spout by a circulating path then.There, before the fan-shaped pattern in plane appears in injection, secondary-atomizing takes place just.This two-stage atomization process can cause, and claim protection produces sizable little drop, has wherein captured bubble, and this drop is big, can lessly be subjected to unwanted injection drift.Can think and consequent droplet size size realize that crop is obviously invalid aspect topped.In fact, what need especially is to produce such little drop size that class is produced under atmospheric conditions, as the morning fog that produces that under humid climate, spends the night, condense to the tendency of not rolling from the teeth outwards with this such as the little drop size on the outer surface that parks a car, and under the place of deposition stops.In conjunction with this purpose, need be little drop that can produce accordingly, so that be enough to permeate crop with enough high-speed mobile.
The previous motion of other is at GB 952,457 and GB 1,378,190 and US4,465,832 and US 4,179,068 in disclose.The hybrid system that these motions relate to some liquids and gases is used for liquid entrainment and/or the formation of little drop.Be United States Patent (USP) 4 wherein with the maximally related latter of being of the present invention, 179,068 (having transferred NRDC), it has reported a kind of liquid dispensing apparatus, wherein liquid enters a minor air cell in radially inner mode generally, so that upwards flow by minor air cell's openend under the gas-liquid effect subsequently, gas stream is transported to that openend so that penetrate subsequently from a spaced openings, see Fig. 2.Verified, air in a system can not reach beneficial effect of the present invention by air with liquid supply chamber (this supply chamber has a closed end wall or target and one or more relevant outlet in embodiments of the present invention) with liquid stream, and the system of this previous report relates to general axis to little droplet flow (facing to liquid feed direction), and flow with the general warp-wise or the extroversion of system of the present invention (or reaching 45 degree on its each side) compares its mode of operation a great difference.And, former United States Patent (USP) 4,179, the described system of 068 specification, its operation is based on the effective principle that keeps little drop size under the different air feed pressure, and the mode of operation of described embodiment more of the present invention is, little drop size size changes with system pressure and changes.
At United States Patent (USP) 4,828, reported some spray nozzle devices in 182 and 4,899,937 (having transferred Spraying SysremCo), their sales of having gone on the market, and be used for agricultural and spray the place.United States Patent (USP) 4,828,182 specification has been reported a spray nozzle device, it is particularly suited for humidification and transpiration-cooled application, the spraying of expectation is a kind of broadness and relative flat injection pattern in these are used, many existing air assisted spray nozzles are then opposite, and its ejaculation is circular relatively closely spraying pattern.
This disclosed system promotes liquid to atomize in advance by an insert, and this insert comprises the impact components of an elongation, and it has a transverse extension looping pit, and this hole is subjected to the impact of fluid under pressure, and liquid is broken up.One forced air access to plant, and a lateral area is defined as a shock surface, but this shock surface deflection and break up air-flow, and the sizable turbulent flow that is used for pre-atomized liquid stream, promptly generated, air-flow laterally is injected in vertical flowing liquid stream as a result, just produces liquid stream at downstream direction towards jet expansion, and its form is the broken pre-atomized particles of fine powder.Then the liquid communication of this preliminary atomizing is crossed a discharge orifice and a deflection flange, this flange laterally is positioned on the liquid flow line, again its guiding is passed through a discharge orifice, the little drop of atomizing is ground into superfine liquid particle in advance herein, this liquid particle is deflected the spraying pattern of a plane, broadness then, and its mode is to make its maximum exposure in surrounding air.A kind of cup-shaped recess can produce pressure wave or acoustic energy, helps liquid to decompose atomizing.This spray nozzle device is particularly suited for humidification and transpiration-cooled application.
U.S. Patent number 4,899,937 have disclosed the spray nozzle device that uses with the same manner, and it can easily be removed from nozzle body, makes nozzle be used as hydraulic pressure nozzle.
Correspondingly can find out, these two kinds of existing United States Patent (USP)s do not disclose any relevant for to the chamber notion of feed fluid and gas wherein, liquid is with atomised form feed not, and chamber has a wall or closing end, said air and liquid are towards this wall or sealed end feed, and the sealed end of the relative chamber of being supplied with of liquids and gases discharges from this chamber with the airflow pattern of sneaking into drop.
Correspondingly, at least in the improvement that is sought after aspect agricultural and the gardening spray boom formula sprinkler producing about little drop, comprise infiltration, liquid particle size size now to crop to above-mentioned, and the minimum value of required year water.The purpose of this invention is to provide a kind of method and apparatus, can improve more than one shortcoming in the above-mentioned prior art, or it is done general (comprehensively) improve.
The invention provides a kind of method and apparatus that is used to spray, as every claim limits.
In one embodiment, a kind of little droplet generator is provided, it includes an air and liquid is supplied with chamber, and the gentle stream supply device of fluid Supplying apparatus is connected with this chamber and is used for to the formed inwall of this chamber one closing end or target supply air and liquid.This little droplet generator further comprises and limits the externally ported edge of chamber or the structure on border, and fluid Supplying apparatus is suitable for via the chamber closing end by chamber to exporting feed liquid.
In this embodiment, air feeder adapts to relevant chamber with fluid Supplying apparatus, so that to the chamber end supply air and the liquid of closure, is used for liquid entrained air stream is produced the drop spraying from the chamber outlet.These characteristics can produce several significant advantage, comprise the useful especially pattern that little drop forms, and can make little drop entrained air stream well with this little drop size size, and air-flow carries little drop and enters crop simultaneously.Thereby at first, this device can produce a kind of suitable or best little drop size size, and this meets the needs of very low liquid volume, reach satisfied simultaneously or better to the infiltration of crop.And the pattern that little drop produces is particularly suitable for making effectively carries little drop by air-flow and enters crop along required direction, for example under drip the jet pipe and spray.
Thereby, general arrangement by air-flow and liquid conveyer are provided comes to a locular wall or is generally closed chamber end supply air and liquid, and the liquid that is used for sneaking into accordingly air-flow, by exporting outside outflow, She Ji advantage is that air-flow also can spray along any required direction with physics and the dynamics that its little drop of carrying secretly has needs like this.In addition, in a given package unit, when spraying outbound course and width, design has sizable flexibility.For example, generation is quite wide if desired is output in a certain assigned direction with fan-shaped spraying, and then device can be settled a series of appropriate intervals apertures (nozzle) that have corresponding to required fan-shaped output in some suitable directions.In fact, for example, be provided with six apertures and replace an aperture, also can not increase the volume of the required liquid of shower nozzle, wherein on the shower nozzle a plurality of apertures need be set.And the device of (six) plain nozzle of installing respective number is compared with the device of a nozzle, and then in requisition for the fluid flow of six times of as many as, this situation is not used for more following embodiment.For the shower nozzle of a porous mouth, can supply with the liquid for jetting of same volume, for the full terms that produces required injection pattern needs then is: keep liquid entrained airs and little drop to form the needed moderate air pressure of step to all spray orifices.In other words, only, can supply with the liquid of same volume to more spray orifice by increasing the air quantity delivered.
Adopt another kind of method, some embodiments of the present invention can reduce the liquid volume supply arbitrarily to being significantly less than the needed level of plain nozzle (magnitude), as long as air enough satisfies the needs of liquid entrained air and little drop formation step for amount.
And in certain embodiments, in chamber or passage (gallery), form one or more apertures, liquid infeeds with the pattern that does not atomize through the closing end of aperture towards chamber, and chamber has a relevant outlet, infeeds chamber by this outlet liquid and air stream.Not clear, the formation of some or all little drop is to occur on the closed-wall of chamber, still occurs in liquid afterwards and flows through in the liquid flow path of chamber.Produced a kind of surface liquid layer probably in chamber, liquid level flows to outlet and has formed little drop in this zone.
In the closing end of the chamber that transmits liquid to it or the relative configuration between the locular wall, and the position in one or more outlets aperture, be important.Broadly, outlet position, aperture is with respect to that wall of chamber, and make material stream, flow to the direction of outlet from atomized liquid jet impulse position not, generally be outside by chamber.In this embodiment, in chamber the path of the air of feed and liquid normally along chamber axially and the direction of chamber length direction towards its relative closing end, but to the air supplier to the true axial direction that also needn't be as the criterion.And, about the position of the one or more outlets of chamber, can be but need not on the periphery that strictness is in the chamber wall of feed flow or target (liquid is supplied with and is directed to this place).Like this, in the embodiment of Fig. 2, several exits has the skew axial with chamber a little, is offset this wall, this scheme, and promptly being provided with of the position of an outlet or a plurality of outlets need make liquid outwards successfully and effectively flow from the chamber end wall.
Equally, in certain embodiments, feed to the liquid jet of chamber, generally be with chamber in two or more aperture balanced configurations of forming so that each aperture can receive edge or border that the liquid that is generally equivalent is fed to its entrained air.
And in these embodiments, the gas-liquid supply not only is used for general central supply and liquid is evenly infeeded in the chamber in the aperture which is provided with a plurality of entrained airs, but also will make air be distributed in chamber and each aperture quite equably.For reaching this purpose, and established device some axial airs flow into conduits, or some borings are being set in the pipeline that leads to air and liquid supply room, these conduits and boring be distributed in equably plumbing nozzle or liquid feed assembly around.
Other noticeable characteristics of this embodiment comprise the function of air feeder, and it is similar to the effect of liquid supply venturi nozzle (venturi) or pump.
Liquid jet to air one liquid feeding chamber feed sprays toward locular wall or target, and the surface of this wall or target need be configured to the edge or the border of the entrained air that is uniformly distributed in associated orifice or outlet that can promote liquid.For example, the shape that the surface can have a convex surface and outwards enlarge, its top pilot fluid jet source, and the shape of convex configuration wants to impel and produces uniformly outwards liquid stream, flows to the one or more aperture that is arranged on the chamber.One smooth surface can be set on the other hand, as shown in Figure 7.Can also imagine that a kind of concave surface (as shown in Figure 2) can produce useful effect.Verified, failing can to have a strong impact on the distribution of liquid in these holes, produce uneven injection thus to two or more are evenly supplied under the situation of liquid in the aperture at interval on the chamber.
Be understandable that the present invention has adopted a kind of approach to form drop, this approach and vaporizer technology have some common technique basis, and the air feed can provide the ability of feather spray to permeate crop.The formation of little drop as mentioned above, is to occur on the locular wall of resistance carrier fluid body feed, and/or at the edge or the borderline region that limit chamber outlet or a plurality of apertures.In some tests, observe, with the feather spray that device of the present invention produced, comprise part in, it can be, for example, length is about 10 to 20 centimetres, air and the liquid of being carried secretly in this feather spray part, compare with distinctive water smoke or vaporific form in the pinniform outside, be comparatively speaking be not easy very much observed.Not clear, which type of effect has caused this variation on apparent, and these right and wrong concerning plain nozzle are distinctive.
The importance of more following embodiment is that air feed system has quite low energy consumption.Give fan (pressure fan) if so-called air bag (bed) the formula sprayer that can buy at present needs electric energy to be input as 80 kilowatts usually, and the air supply system of following each embodiment is used for one 12 meters spray boom and only needs about 10 to 15 kilowatts.
Should be appreciated that the aperture or the outlet that therefrom give off little drop, can carry out the change of shape the circular cross section that is hereinafter disclosed.Some major advantages of described embodiment are that the simple in structure of little droplet generator and aperture possibility of jamming are less, have the little drop of high directivity and send, and need few liquid volume.And, drop depart from power stream and the situation of disperseing to the side seldom, and known technology motion as mentioned above, then is tending towards producing atomizing (dispersions) and acts on.
By reducing the needs of liquid volume, these embodiment can significantly reduce the downtime that sprayer commonly used need recharge liquid bath, account for 40% of the working time this downtime.Therefore can increase about working time more than 40%, its further favorable factor is that the aperture of little drop ejection or outlet no longer need to be designed to the desired very little size relatively of liquid spray systems.Like this, it is 1 centimetre that nozzles more of the present invention can use diameter, and it is 0.3 centimetre that known by contrast liquid spray systems is to use diameter.Reduced the generation of stopping up thus.
Facts have proved that some embodiments of the present invention change liquid feed pressure great franchise.For example, proved that liquid feed pressure can reduce to the level that is lower than air-flow feed pressure.Really obvious some embodiments of the present invention also do not require that liquid transmits with pattern, and promptly for example jet is supplied with the end wall interception of chamber and produced dynamic effect by gas one liquid.Otherwise, as if satisfied purpose of the present invention: promptly only provide the liquid supply of q.s that little drop entrained air process is carried out, and do not have the shortage of any liquid feed.Thereby, as if can think, according to this fact, little drop form and entrained air process are the zones that occurs in a large number from the outlet aperture of chamber ejection, rather than in chamber, though according to the character and the dynamic characteristic of liquid feed, its mechanism can be different slightly.
To this, experiment work proves, change the form of closed chamber end wall in one embodiment, promptly change the spray pattern of liquid jet to this locular wall, this device performance there is not significant impact, as if this also supports such possibility, and promptly little drop entrained air process is not to occur in the chamber basically.
Further about the mechanism of little drop entrained air process, the importance of this process seemingly, promptly before little drop entrained air process or among liquid/air flow the direction variation directly taken place.So very clear, this process does not occur in the chamber of entrained air effectively, can flow total direction with the material by chamber by directly flowing forward vertically of outlet nozzle and be in line in chamber, as above-mentioned existing United States Patent (USP) is described.The mechanism of this effect is not clear now.Be also pointed out that obviously to have so-called venturi nozzle (venturi) or siphon pipe effect in chamber outlet or mentioned nozzle area, it is produced and is used for liquid is fed to the edge or the border of outlet by air-flow.Similar effect when being entered chamber, air and liquid feed is also arranged.Extraneous air stream just produces the Venturi effect to internal liquid stream, thereby, make that required fluid pressure reduces in the liquid feed.
Another importantly puts into practice several value parameters that connect each other that the aspect relates to each Main Ingredients and Appearance in liquid and the air supply system the present invention.The output quantity etc. that these parameters comprise the size, air feed pressure, liquid feed pressure of each outlet in air and the liquid feeding chamber or nozzle, the air feed is given the air compressor of system.
At first consider the size of each outlet in the gas-liquid feeding chamber, the spout of their diameter or the similar area of non-annularity can be 0.5 to 2.0 millimeter scope.Having proved less than 0.5 millimeter various sizes to cause the feather spray of little drop that device produces to shorten range or stroke greatly.The preferable range of each diameter (or size of its orifice shapes) is 1.3 to 1.8 millimeters, is preferably 1.6 to 1.7 millimeters.These latter's large-size has main advantages, can avoid causing the nozzle frequent jams as conventional spraying system.Also prove, little drop size size can not be subjected to the influence of outlet (nozzle) size, but with the increase of jet size, to the also corresponding increase of the infiltration of crop, this is because due to caused little liquid drop speed increase of larger volume throughput and the flow resistance minimizing.
With regard to air feed pressure, this directly relates to the capacity of the compressor of supply air.Certainly use the agricultural traction engine that abundant electric flux deposit is arranged usually to drive the compressor of significant proportion sometimes, but the cost that big compressor involves makes it not popular to people, and air feed pressure limit height to 0.6 crust and 0.6 to 1.0 crust (being higher than atmospheric pressure) have been proved, be preferably between 0.7 and 0.9 crust, use can per minute to supply with the compressor that is about 5 to 20 cubic foot of air (data that record) under this pressure to each shower nozzle or jet pipe comparatively convenient.Usually the output quantity scope is 10 to 15 cubic blocks/each jet pipe/per minute, suits.Also proof once use to surpass the pressure of above-mentioned scope, can cause producing little drop of the size that does not meet intended purposes, that is need push ahead and adhere to or be applied on the crop and on other surface that is exposed.The best scope of little drop that it is suitable that discovery is used for these purposes be 80 to 120 or full-size up to 150 microns.Bigger little drop is to be used for spraying the spray drift that crop is blown and causes with minimizing by top (rather than using the falling type jet pipe).Being significantly less than little drop of 80 microns is proved to be too little so that can not adheres to injected surface effectively.
With regard to liquid feed pressure, major requirement is that enough liquid is fed to the chamber outlet nozzle, and does not use the jet that directly transmits by the spout center.Yet proved the above pressure of 0.6 crust (being higher than atmospheric pressure), in above-mentioned some enforcement, suited; And tested 2.5 and to some pressure of 6 crust, prove to have produced acceptable result that wherein the air feed still can carry out and can waltz through exporting or nozzle very much.It seems that the air feed can be effectively used to remain on center port or the hole in each nozzle in the operating process, the phenomenon of carrying little drop secretly in the air stream takes place on the edge of nozzle or border simultaneously probably.
An aspect of the versatility of this system, can know by using different liquid feed pressure, verified, when satisfied little drop produces is to occur in above-mentioned high liquid feed pressure following time, then can use these elevated pressures to eject more heavy dose of liquid, for example per hectare is sprayed 60 liters or even up to 300 liters of liquid.Thereby as can be seen, this respect of the present invention can provide a kind of injection method, is adapted to require and need other material of injection to change injection dosage according to the part of crop.Utilize the liquid feed system of variable output quantity, can change dosage greatly.Common spraying system is the great conversion that is difficult for reaching dosage by changing liquid feed pressure only.As seen, this versatility is to produce to have used very big outlet or spray orifice in the present invention, and unlike the only limited jet size of some common liq spraying systems overslaugh liquid for amount in inner conversion on a large scale, inflation spray orifice in center simultaneously of the present invention can easily adapt to this conversion.
From the above, the present invention and following more noticeable embodiment thereof, the little drops that provide the method for the feature of having any different itself to produce different sizes, being adapted to the various needs that agricultural and gardening spray, and these fields relevant needs in addition.More previous technology motions are put it briefly, be based on such approach: be provided with one slightly drop produce system, wherein the first step is to produce preliminary atomizing in drop generating device, this requires corresponding liquid/air interactive step inevitably, then by nozzle ejection and with a target or split the liquid anvil and carry out lateral deflection to reach further degree of atomization and the generation of little drop.
Opposite approach of the present invention be based on sky chamber or the indoor use of atrium a kind of in target or retaining wall, with air and liquid be fed to make on this target or the retaining wall cracked.It is correspondingly towards not becoming outlet arranged in a straight line or spray orifice with the liquid stream that passes through chamber that liquid flow direction changes.Through the liquid stream and air stream of outlet or spray orifice, the injection that just produces the little drop that is involved in air, this injection produces certain little drop size to be applicable to coat effectively plant and other surface with the air pressure of easy mensuration.This injection does not have interior or external structure interferes the whole process of the liquid-to-air of the spray orifice of flowing through to flow.And, also prove, by the size and the configuration of suitable selection outlet spray orifice, spray as required, can obtain a certain direction and infiltration to a certain degree to crop or other species.
Do not use microtechnic equipment, the mechanism that little drop is produced is to be difficult for measuring.Yet, can find out obviously that from the structural difference of little droplet generator of the present invention and prior art the difference of mechanism is in brief, be exactly that the present invention has used a target or chamber end wall, adopted unrestricted outlet spray orifice simultaneously, and existing technology, generally speaking, adopted opposite assembling mode.
Comprehensively above-mentioned, can believe, the present invention representative is overthrown (on the contrary) to certain of prior art, this is meant that the shortness of breath of droplet production process hollow is advanced aspect the effect in agricultural and gardening and related application, the air facilitation can benefit from strengthening the generation little drop of certain size, a certain size little drop is strengthened generation technique and can be utilized the liquid-carrier of minimum volume to be used for diluting a certain active surface inorganic agent, and promotes the even coating of the matrix that desire is sprayed.The technology of the present invention is to utilize air to replace liquid diluent as means.This technology is the not influence of liquid body feed pressure to a great extent.As for air feed pressure, this can select according to needed particle size scope.By feather spray or spray the jet of little drop, and provide infiltration (contact) scope and degree, be decided by to a great extent from gas-liquid supply with the chamber ejection the outlet spray orifice size and in conjunction with corresponding requirements, to select the needed air flow volume of air feed pressure force feed (air feed pressure is to need and decide according to little drop size) for use.And these technical characterstics and advantage, can derive from the quite simple combination of each characteristic of air one liquid supply chamber among described each embodiment, it should be noted that most in the chamber of open type center (open centre) and be provided with a retaining wall or target, liquid stream is fed on this wall and the target, change along with the liquid flow path direction, can make liquid reach required several outlets or spray orifice and combination, thereby produce the little drop that is involved in air according to above-mentioned situation with required these spouts of air-flow process.The liquid stream of the flow direction and process spout generally is outside by target or wall, is actually outside by chamber, though never necessary along real Radial Flow.
For example one embodiment of this invention is further described with reference to each accompanying drawing below.
Fig. 1 be run through nozzle and with the axial section of conduit assembly;
Fig. 2 replenishes the corresponding longitudinal sectional drawing that air is sneaked into chamber (being suitable for being installed on nozzle and the conduit assembly) for running through;
Fig. 3 is an end-view of nozzle and conduit assembly, observes along direction III among Fig. 1; And
Fig. 4,5 and 6 takes from the corresponding disclosed relevant international application formerly of the applicant, comprises particularly PCT/GB92/01356, and the jet pipe type sprayer unit that tractor drives is pointed out in this patent application, and the present invention can be applicable to this device;
Fig. 4 represents the plan view of the sprinkler that tractor drives, and the compressor that this device was equipped with is used for to each jet pipe supply air;
Fig. 5 explanation is arranged the respective planes figure of the single falling type jet pipe that passes between the crops with larger proportion two, and has pointed out that little drop pinniform is sprayed or the direction of spraying;
The end-view of Fig. 6 presentation graphs 4 sprayer units one spray boom has been pointed out a spray boom itself and a relevant falling type jet pipe; And
Fig. 7 represents, with larger proportion, a little drop takes place or air is sneaked into chamber, represents second embodiment of identical invention, and some outlet spray orifices that are provided with the angle of inclination, so that produce the jet or the feather spray of the little drop of injection simultaneously along the incline direction of pointing out.
As shown in Figure 1, liquid and air feed and coupling assembling 10 comprise that the ejection assemblies 12 of a mechanical fastener and feed, ejection assemblies 12 are the friction fittings in conduit assembly 14 is terminal.
Nozzle or connector 12 have a kind of 6 axis hole chambeies 26, and their longitudinal extensions are so that be fed to chamber 28 with the air of the internal volume of the pressurization of falling type jet pipe 14, chamber 28 be limited at that air is sneaked into or chamber spare 24 in.
Nozzle or connector 12 also are used to provide a kind of not jet or the liquid of atomizing and flow to into chamber 28, are used for following purpose.Correspondingly, connector 12 also is provided with a flexible pipe sleeve 30 in its inner, and a vertical vestibule 32 stretches out forward thus, and one sprays or jet or liquid that feed flow spare 34 is used to produce non-atomizing spray.Nozzle 34 has the axial vestibule 36 of oneself, and it leads to vestibule 32 and receives liquid thus.Vertical vestibule 36 of nozzle 34 is vertical vestibule of simple uniform cross-section, and little droplet generator of nozzle-type is not set.
The structure and the function of letter speech nozzle or connector 12, its effect is to receive jetting fluid from the flexible pipe along longitudinal extension in the falling type jet pipe 14, and also receive along the air of the vertical pumping of that pipe, in the annulus of that pipe between flexible pipe and this pipe inner face, atomizing of liquids is that uniform liquid flows feed as approaching from nozzle 34.The feed of air generally is the periphery that centers on nozzle member 12 equably, is actually 6 air-flows that produced by vestibule 26 and transmits.These liquid and air stream are to be fed into to carry chamber 28 secretly, or liquids and gases feed chamber 24.
Turn to now air is sneaked into or the detailed description of the structure of chamber combination 24, some spray orifices that its primary structure characteristics are its internal form and setting or export 38 are in order to from chamber 28 outside supply airs with from chamber 28 atomizing of liquids.Chamber 28 is drums, comprises an axial vestibule 40.In this embodiment, it has the tapered distal end wall 42 of quite big cone angle and has one toply 44, and in use liquid jet is from nozzle 34 feeds point so far.
A plurality of apertures 38 are to be that one group two groups dispose with three apertures or outlet, six apertures altogether, these two groups of apertures are all being left within every group or between two groups at interval, to produce twice side direction and export-oriented pinniform jetting fluid, in use outwards and to the side outside spray into the crop, can carry out according to the above-mentioned previous patent specification of the inventor from falling type jet pipe 14.
Fig. 4,5 and 6 sprayer units for the tractor driving, it is suitable for installing little drop generation device additional according to the above embodiment of the present invention.
Thereby in Fig. 4, a tractor 50 is installed on the connecting rod of spray boom formula injection apparatus 52, and injection apparatus includes spray boom 54,56, and they are connected with falling type jet pipe 58, as described in the previously disclosed PCT application of inventor.
Each falling type jet pipe 58 comprises a falling type jet pipe bar portion 60 (being equivalent to the pipe bar 14 among Fig. 1) of spraying down, and they enter between the crop ranks 62,42 and be loaded with a little droplet generator 66 and are used for the crop hydrojet.
Each falling type jet pipe 58 has the little droplet generator of oneself, and shown among Fig. 5 66, it also is equiped with gas and fluid Supplying apparatus, the feed desire is sprayed from liquid tank 68 and compressor 70 liquid and air, as shown in Figure 4.Little droplet generator 66 is to produce two strands to spray or pinniform is sprayed 72 (see figure 5)s, direction generally be forward, upwards with to the side, be according to tractor and falling type jet pipe direction of advance F, and symmetrical with the crop ranks.Little droplet generator 66 is corresponding to above-mentioned Fig. 1,2 and 3 intact device.Just produce a kind of pinniform in each side of falling type jet pipe like this and spray 72, can carry out inject process each crop ranks 62,64.In Fig. 5, shown falling type jet pipe 58, apply for described manufacturing according to the above-mentioned existing PCT of inventor, and falling type jet pipe 58 is to be adapted to purpose of the present invention in Fig. 6, but admission of air and liquid supply, air and liquid are vertically transmitted in the falling type jet pipe, deliver to it at little droplet generator of lower end more, the feed situation is as mentioned above with shown in Figure 1.
It is manipulated, liquid and air charge are fed to the upper end of each falling type jet pipe 58 and to its nozzle or coupling assembling 12, as mentioned above, chamber 28 is inflated pressurization, receive jet or feed liquid simultaneously on chamber end wall or target 42, promptly to the conical pinnacle 44 of this end wall.This jet or feed liquid can think to have produced at least the part liquid film on the inner surface of chamber end wall 42, this liquid film is towards the aperture or export 38 and outwards flow, and with form of film outwards and flow to the ora terminalis 48 in aperture along some vestibules 46.Little drop to a certain degree forms, and can occur in the end wall or target 42 places of chamber 24.
Also fail to know definitely, especially on its outlet 49 edge or border, what effect has taken place all in the external end of some vestibules 40.Removed foregoing result in this application, altogether the formation of little drop is in the zone of each outlet 49 and/or as far back as chamber end wall 42 places, perhaps promptly flows when fully being slowed down by surrounding air when air/liquid in the latter half.
In the embodiment of Fig. 6, little droplet generator 66 of the falling type jet pipe 58 of Fig. 6 has replaced Fig. 1,2 and 3 assembly 10 and chamber spare 24, and it is constructed as follows.Little droplet generator 100 of Fig. 7 comprises an air and liquid feeding chamber 102, this chamber is provided with the feed of air 104 and liquid 106, they have identical relative space configuration with former embodiment, are used for to tabular chamber end wall or target 108 supply airs and liquid.
Some outlets 110 of chamber are to be configured to two groups, comprise outlet 112 and a plurality of general back outlet 114 to sensing of a plurality of general forward directions, and this is meant for the normal proal direction F of sprayer.
Clearly pointing out as Fig. 7, is to dispose like this towards the inlet 116 that exports, even liquid flows to vestibule 118 that each exports from end wall 108, and needs the change direction before entering vestibule.And some inlets 116 are axially or on the liquid flow path direction being offset of chamber 102, and leave end wall 108 1 distance, d.
This embodiment of the present invention can give off to two above-mentioned directions simultaneously and spray little drop, and this helps some agricultural and does.
Broadly, in some embodiment at least of the present invention, utilize air to flow to cause the jet motion of little drop, can effectively replace being generally used for spraying the water or the similar substrates of purpose, thereby might come inject process is carried out in agricultural or gardening or industry or other object with a kind of fluid handling media, and need not to use any liquid as the diluent or carrier medium, this at least can the effective volume of this liquid-carrier reduce to 10 or more than.
In a further embodiment, a system is set, wherein the viscosity of the liquid that desire is sprayed is selected allotment according to needed little drop size, in the embodiment of an imagination, can be non-water and so on the liquid-carrier that deals with material, for example liquid-carrier can be a kind of oil-based fluid, contains a kind of aromatic hydrocarbon.Can imagine, this liquid-carrier can form the desire atomizing of liquids, tackling it is selected, the character according to related active chemical components is not only in selection, but also according to the surface tension of this liquid and other characteristic, selection is in order to reach the adhesiveness desired to plant surface, or other relevant requirements.One example of relevant requirements can be the invasion and attack that the material of requirement injection can be resisted rainwater.
Thereby, this embodiment as can be seen according to the present invention, the invention provides additional advantage, can make the non-aqueous liquid carrier be used to spray purpose, and such spraying basis be considered to so far commercial be unacceptable, quite high because of Jie's money of liquid-carrier, need consume (volume) material in a large number with existing injection apparatus.
The further content of the present invention is considerable, provide that a kind of ability is injected or otherwise the liquid that sprays of feed desire to the feed system that approaches each nozzle on the spray boom.In this way, can shorten the injection Route Length that transmits relative concentrating chemical product therein.In view of converting another kind to from a kind of ejection medium in very short time, this can provide a main advantages.
In the conversion scheme of being done in more above-mentioned embodiment, it is following still remaining in the interior person of protection scope of the present invention.At first, the actual cross sections shape of air and liquid feeding chamber and size can change.Can adopt a kind of non-cylindrical chamber and this chamber also can change along the axial length of liquid flow direction.More indicated as Fig. 2 and Fig. 7.Competent technical staff carries out routine test work and can disclose some applicable scope limits in this area.Equally, with respect to the configuration of some outlets of chamber end wall, can be suitable for providing other conversion scheme.Liquid feed jet also can do sizable change to the wall or the target itself of its injection, and can adopt outline is the plane, be generally concave surface or be generally convex surface.In fact, target can be arranged to the internal structure of chamber, is fit to liquid and flows towards the chamber outlet.Routine test work can disclose the change that can do in this respect.
It is contemplated that the air intake position of chamber for example is arranged on it relative end of liquid inlet, perhaps really on a sidewall of chamber, also can obtain satisfied result.Done some tests, and made it with gravity liquid is fed to chamber end wall or target effectively, and need not the liquid of control survey to this structure feed to chamber feed liquid and air system.This scheme can be adapted to an attitude and change not too important place, but general hope is provided with metering device, is used for uniform liquid is fed to chamber end wall or target.The additional mapping mode that like this can the whole bag of tricks obtains pointed liquid emitted dose of each the foregoing description or flow is included in and uses several such emitted doses or flow in the chamber.Can recognize that by above-mentioned chamber end wall or target can provide a kind of function of distribute baffle plate or assembly, be used for suitable liquid stream is fed to each outlet of chamber, so that form little drop that air is carried secretly.
Claims (29)
1. an agricultural or other are used flusher, comprising:
A) fluid Supplying apparatus, it is suitable for supplying with the liquid that a kind of desire is sprayed;
B) air stream supply device, it is suitable for air supply stream up to the fine liquid drop spray that this device produces occurring;
C) a little droplet generator, it is connected in said liquid and air stream supply device and is adapted to produce liquid droplet by it and sprays; And
It is characterized in that:
D) said little droplet generator comprises an air and liquid feed chamber, and this chamber is connected with said air stream supply device with said fluid Supplying apparatus, is used for generally towards said air of this chamber inner wall feed and liquid; And
E) said little droplet generator further comprises a kind of structure, and it limits the outer vent of said chamber and said liquid supplying apparatus is to be adapted to the said liquid of feed to arrive said outer vent via the said inwall of chamber by this chamber; And
F) said air stream supply device and fluid Supplying apparatus are connected in said chamber so that to its inwall supply air and liquid, and the liquid of carrying under one's arms in said air stream produces fine liquid drop spray from the chamber outer vent; And
G) liquid and air-flow direction by said outer vent, enter said chamber with respect to air and liquid feed from said chamber, towards the direction of motion of said chamber inner wall routine, generally outwards carry out at side.
2. little droplet generator that is used for the flusher of agricultural or others is characterized in that: the outer vent of a chamber be suitable for this outside liquid feed from the inwall of air and liquid feed chamber or target by said outlet, from air and liquid feed chamber during by said outlet liquid sneaked into and formed little drop the air-flow.
3. device as claimed in claim 1 or 2, it is characterized in that said chamber wall is that a terminal and said liquid feeder of said chamber is to be connected on an opposite (relative) end wall of said chamber with said air stream feeder, with liquid and air respectively along chamber vertically towards an end wall feed.
4. device as claimed in claim 1 is characterized in that said liquid feeder is adapted to liquid that feed do not atomize to said chamber, and the general axial jet by chamber is sent on the said closing end or wall of this chamber.
5. device as claimed in claim 4 is characterized in that said jet generally is towards the center of chamber and symmetrical with the two or more chambers outlets that are shaped thereon, and said liquid droplet is from these outlet ejections.
6. as any one described device of claim 1 to 5, it is characterized in that said air stream supply device is to be adapted to the said air of feed flow in the said chamber, is to realize by one group of two or more aperture of configuration around said chamber liquid feeder.
7. any one described device in the claim as described above, it is characterized in that: said chamber outlet is to be formed by the outer end of a vestibule that forms in the said chamber wall, and the inlet that enters said vestibule need be configured to directly not receive liquid from said jet before liquid is blocked by chamber wall.
8. device as claimed in claim 7 is characterized in that: the inlet that enters said vestibule is to be formed on the one or more axially extended wall of said chamber.
9. device as claimed in claim 8, the inlet that it is characterized in that entering said vestibule is with respect to said chamber inner wall, takes place axially to depart from (skew), said liquid and air stream are towards this chamber inner wall feed.
10. any one described device in each claim as described above, it is characterized in that: it is this configuration that said chamber exports, originally be to move along the side outward direction promptly with respect to chamber by little drop that this outlet discharged, and with respect to the liquid inflow entrance of said chamber with respect to producing deflection to outer radius.
11. device as claimed in claim 10 is characterized in that said exit position deflection is the deflection to said radius, radius is the end towards said chamber, and promptly said liquid flows to into chamber and feeds to its terminal part.
12. device as claimed in claim 10 is characterized in that: said exit position is to deviate from the chamber end to the deflection of said radius, and liquid flows to into chamber and delivers to this terminal part.
13., it is characterized in that said chamber comprises some outlets that are positioned on two said qualification directions, so that this device can have the direction of very big deflection to discharge hydrojet simultaneously toward each other as claim 11 or the described device of claim 12.
14. as any one described device in each claim of front, it is characterized in that said outlet is one of one group of outlet of keeping apart mutually, they are around the liquid inflow entrance of said chamber.
15. device as claimed in claim 14 is characterized in that said outlet is one of at least two groups outlet, their position is the central liquid inflow entrance of balanced configuration in said chamber.
16. agricultural or gardening flusher, comprise any one described flusher and spray boom in each claim of front and be installed in falling type jet pipe on this spray boom, little droplet generator of said device is mounted on the said falling type jet pipe, be used for operation and approach ground basically, rather than be installed on the said spray boom.
17. an agricultural or other purposes spray method comprise:
A) supply with the liquid that desire is sprayed;
B) provide air stream feeder and cause that this device supply air stream is until the fine liquid drop spray that this device generation occurs;
C) provide a little droplet generator that is connected in said liquid and air stream feeder, and cause that this generator therefrom produces the injection of liquid droplet;
It is characterized in that:
D) said little droplet generator comprises that the feed chamber of an air and liquid and said method comprise said liquid of feed and said air stream, make them generally be sent to the inwall of chamber; And
E) said little droplet generator further comprises the structure and the said method that limit said chamber outer vent edge or border and comprises via the step of this chamber inner wall to outlet feed liquid; And
F) said method further comprises the step to said inwall supply air and liquid, so that by producing the little drop that sprays from the chamber outer vent in the liquid entrained air stream; And
G) said method further comprises from said chamber and produces the step of liquid and air stream by outlet, and it is outside that the direction that described Way out enters chamber with respect to the feed gas-liquid is generally the side,
Its motion is generally towards chamber inner wall.
18. the spray method that agricultural or others are used, comprise a little droplet generator is provided, little droplet generator comprises the structure that limits chamber outlet edge or border, with cause outside liquid feed, from the closing end of air-liquid feed chamber or wall pass through explain, the liquid that is involved in air stream flows out from the chamber outlet and forms little drop like this.
19. require 17 or the described method of claim 18 as the power place, it is characterized in that causing that the liquid feeder is fed to liquid the step of the closing end or the wall of said chamber, the liquid of feed is the liquid jet form that does not atomize, and generally is axially to be fed on chamber closing end or the wall in said chamber.
20. method as claimed in claim 19 is characterized in that causing that the step of jet, jet generally are towards the center of chamber and are symmetrical in and carry out two or more outlets that liquid droplet sprays.
21. injection apparatus as claimed in claim 20 is characterized in that carrying out to each falling type jet pipe the feed of air and liquid, is fed to it in falling type jet pipe and vertically transmits by the conduit of wherein installing or by falling type jet pipe itself thus.
22. a miniflow that is used for spraying system drips generator, comprises an air and liquid feed chamber.
23. little droplet generator as claimed in claim 20 is characterized in that said chamber interior has a general cavity or open construction, does not have internal structure basically, is like this in chamber jet exit zone at least.
24. little droplet generator as claimed in claim 23, the configuration that it is characterized in that said jet exit is such: said jet exit does not have member and barrier basically in outlet one side yet, occurring a kind of pinniform thus sprays or jet, its direction is limited by vertical degree of outlet, and does not have the variation of any other mandatory direction.
25., it is characterized in that said generator comprises at least two polyphones or is the chamber of linear relation alignment arrangements and the liquid and the air feeder that extend to another chamber from a chamber as any one described little droplet generator in the claim 22 to 24.
26. method that little drop produces, comprise and use claim 22 described one little droplet generator, be applicable to the top of injection apparatus, it is characterized in that needing to produce bigger little drop, thereby reduce the spray drift in using to the air feed pressure of its feed.
27. the little droplet generator as any one is stated in the claim 22 to 26 is characterized in that:
A) said chamber comprises liquid meter, is applicable to that the feed atomizing of liquids is to the end wall or the target of said chamber in a controlled manner; And
B) said meter is to be applicable to the said atomizing of liquids of feed to said end wall or target, and the latter's position configuration generally is to be symmetrical in formed two or more spaced jet exits in the chamber.
28. little droplet generator as claimed in claim 27 is characterized in that said meter is to be applicable to produce a kind of fluid film on said end wall or target, flows to said two or more spaced chamber outlet.
29. little droplet generator as claimed in claim 28, the position that it is characterized in that the air intake of said chamber generally are to be in and the identical position of chamber liquid inlet.
Applications Claiming Priority (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB9522336.8A GB9522336D0 (en) | 1995-11-01 | 1995-11-01 | Agricultural and horticultural spraying systems |
| GB9522336.8 | 1995-11-01 | ||
| GB9603156.2 | 1996-02-15 | ||
| GBGB9603156.2A GB9603156D0 (en) | 1995-11-01 | 1996-02-15 | Agricultural and other spraying systems |
| GBGB9616254.0A GB9616254D0 (en) | 1996-08-01 | 1996-08-01 | Agricultural and other spraying systems |
| GB9616254.0 | 1996-08-01 | ||
| GBGB9619260.4A GB9619260D0 (en) | 1995-11-01 | 1996-09-16 | Agricultural and other spraying systems |
| GB9619260.4 | 1996-09-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1200685A true CN1200685A (en) | 1998-12-02 |
| CN1092545C CN1092545C (en) | 2002-10-16 |
Family
ID=27451358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96197950.XA Expired - Fee Related CN1092545C (en) | 1995-11-01 | 1996-10-31 | Agricultural and other spraying system |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0855938B1 (en) |
| JP (1) | JP2000504990A (en) |
| CN (1) | CN1092545C (en) |
| AT (1) | ATE221417T1 (en) |
| AU (1) | AU713843B2 (en) |
| DE (1) | DE69622733T2 (en) |
| DK (1) | DK0855938T3 (en) |
| ES (1) | ES2180801T3 (en) |
| GB (1) | GB9619260D0 (en) |
| WO (1) | WO1997016257A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639079A (en) * | 2013-12-16 | 2014-03-19 | 中化镇江焦化有限公司 | Special spray head for cleaning of towers |
| CN103639080A (en) * | 2013-12-16 | 2014-03-19 | 中化镇江焦化有限公司 | Special cleaning spray head of ammonia still |
| CN107105616A (en) * | 2014-09-12 | 2017-08-29 | 约翰内斯堡大学 | For preparing and using the equipment of blade face spray |
| CN110022989A (en) * | 2016-11-30 | 2019-07-16 | 杜尔系统股份公司 | The spray nozzle device being open at least two nozzle plates and at least three |
| CN110369176A (en) * | 2019-06-26 | 2019-10-25 | 安徽万户农业科技有限公司 | It is pressurized wide-angle spray head |
| US11511297B2 (en) | 2016-11-30 | 2022-11-29 | Dürr Systems Ag | Nozzle device for dispensing two approaching jets of a medium to be dispensed |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9808635D0 (en) | 1998-04-24 | 1998-06-24 | Benest Eng Ltd | Spraying apparatus and method |
| WO1999063809A1 (en) | 1998-06-05 | 1999-12-16 | Benest Engineering Limited | Agricultural and horticultural spraying systems |
| CA2534323C (en) | 2003-07-28 | 2013-10-01 | Pioneer Hi-Bred International, Inc. | Apparatus, method, and system for applying substances to pre-harvested or harvested forage, grain, and crops |
| KR101346827B1 (en) * | 2011-10-12 | 2014-01-10 | (주)동서그린산업 | liquid supplying apparatus for horticulture and cattle shed |
| CN110441492A (en) * | 2019-08-30 | 2019-11-12 | 贵州大学 | A kind of mining combustible gas detecting device with spray for dust suppression function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2793081A (en) * | 1952-04-05 | 1957-05-21 | American Radiator & Standard | Spray nozzle |
| US3096023A (en) * | 1959-09-16 | 1963-07-02 | Auto Research Corp | Lubrication |
| GB1058838A (en) * | 1964-06-02 | 1967-02-15 | Bodenbearbeitungsgerate Veb | Improvements in or relating to spray outlet devices |
| JPS5842041Y2 (en) * | 1976-10-25 | 1983-09-22 | 日本鋼管株式会社 | Sewage spray nozzle |
| JPS5827821Y2 (en) * | 1978-12-30 | 1983-06-16 | 有光工業株式会社 | agricultural spray equipment |
| JPS5987061A (en) * | 1982-11-09 | 1984-05-19 | Mitsui Eng & Shipbuild Co Ltd | Internal mixing atomizer |
| US4899937A (en) * | 1986-12-11 | 1990-02-13 | Spraying Systems Co. | Convertible spray nozzle |
| JP2507748Y2 (en) * | 1989-12-15 | 1996-08-21 | 三菱農機株式会社 | Boom sprayer |
| ES2081995T3 (en) * | 1990-07-04 | 1996-03-16 | Benest Eng Ltd | PROCEDURE AND APPARATUS FOR SPRAYING AGRICULTURAL CROPS. |
-
1996
- 1996-09-16 GB GBGB9619260.4A patent/GB9619260D0/en active Pending
- 1996-10-31 ES ES96935135T patent/ES2180801T3/en not_active Expired - Lifetime
- 1996-10-31 WO PCT/GB1996/002664 patent/WO1997016257A1/en active IP Right Grant
- 1996-10-31 DK DK96935135T patent/DK0855938T3/en active
- 1996-10-31 CN CN96197950.XA patent/CN1092545C/en not_active Expired - Fee Related
- 1996-10-31 EP EP96935135A patent/EP0855938B1/en not_active Expired - Lifetime
- 1996-10-31 AT AT96935135T patent/ATE221417T1/en not_active IP Right Cessation
- 1996-10-31 DE DE69622733T patent/DE69622733T2/en not_active Expired - Fee Related
- 1996-10-31 AU AU73213/96A patent/AU713843B2/en not_active Ceased
- 1996-10-31 JP JP9517150A patent/JP2000504990A/en not_active Ceased
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639079A (en) * | 2013-12-16 | 2014-03-19 | 中化镇江焦化有限公司 | Special spray head for cleaning of towers |
| CN103639080A (en) * | 2013-12-16 | 2014-03-19 | 中化镇江焦化有限公司 | Special cleaning spray head of ammonia still |
| CN107105616A (en) * | 2014-09-12 | 2017-08-29 | 约翰内斯堡大学 | For preparing and using the equipment of blade face spray |
| CN107105616B (en) * | 2014-09-12 | 2021-03-05 | 约翰内斯堡大学 | Apparatus for preparing and applying foliar spray |
| CN110022989A (en) * | 2016-11-30 | 2019-07-16 | 杜尔系统股份公司 | The spray nozzle device being open at least two nozzle plates and at least three |
| US11511297B2 (en) | 2016-11-30 | 2022-11-29 | Dürr Systems Ag | Nozzle device for dispensing two approaching jets of a medium to be dispensed |
| US11583869B2 (en) | 2016-11-30 | 2023-02-21 | Dürr Systems Ag | Nozzle device having at least two nozzle plates and at least three openings |
| CN110369176A (en) * | 2019-06-26 | 2019-10-25 | 安徽万户农业科技有限公司 | It is pressurized wide-angle spray head |
| CN110369176B (en) * | 2019-06-26 | 2021-03-02 | 安徽万户农业科技有限公司 | Booster-type wide-angle nozzle |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1997016257A1 (en) | 1997-05-09 |
| EP0855938B1 (en) | 2002-07-31 |
| DK0855938T3 (en) | 2002-11-11 |
| ATE221417T1 (en) | 2002-08-15 |
| CN1092545C (en) | 2002-10-16 |
| AU7321396A (en) | 1997-05-22 |
| JP2000504990A (en) | 2000-04-25 |
| GB9619260D0 (en) | 1996-10-30 |
| AU713843B2 (en) | 1999-12-09 |
| ES2180801T3 (en) | 2003-02-16 |
| DE69622733D1 (en) | 2002-09-05 |
| DE69622733T2 (en) | 2003-04-03 |
| EP0855938A1 (en) | 1998-08-05 |
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