CN200981030Y - Atomized spraying head - Google Patents
Atomized spraying head Download PDFInfo
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- CN200981030Y CN200981030Y CN 200620158703 CN200620158703U CN200981030Y CN 200981030 Y CN200981030 Y CN 200981030Y CN 200620158703 CN200620158703 CN 200620158703 CN 200620158703 U CN200620158703 U CN 200620158703U CN 200981030 Y CN200981030 Y CN 200981030Y
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- excited oscillation
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Abstract
The utility model discloses an atomization spray cap, which belongs to the modern farming water-saving technical field. The technical project comprises a spraying body and a spraying head, an autoexcitation cavity is provided in the spraying head, the spraying head comprises a spraying head body and a spraying head cap, the spraying head is channeled to the spraying body, the spraying head body engages with the spraying head cap to form the autoexcitation cavity, and the inwall near the exit end is an inward projecting pyramidal face. The autoexcitation theory based spray cap is capable of bringing the atomization operation pressure which is several-fold bigger than the entrance pressure, achieving the inpulsion spraying and producing fine frog-drops, lengthening the range of the atomization spraying. The atomization spray cap resolves the problems of high operation pressure and small spraying range, which is extraordinarily applicable to the humidification and cooling of dependency agricultural production and animal farm occasions.
Description
Technical field
The utility model relates to a kind of atomizer, belongs to the modern agriculture water-saving technology field.
Background technology
Water-saving agriculture, industrialized agriculture are the main developing direction of modern agriculture, and people improve the yield and quality of agricultural product by the simulation and the optimum environment of control biological growth.The humiture of control inside, greenhouse or livestock and poultry farm is one of key factor that realizes environment control, and its main path is to carry out humidifying cooling by atomizer.By droplet or the water vapour of atomizer generation than minor diameter, increase air humidity, liquid droplet absorbs airborne heat when vaporizing, and has reduced air themperature.
Agricultural commonly used at present is with in the atomizer, and the cross dimensions of spray nozzle is less, generally adopts circle or polymorphic structure etc., and operating pressure is everlasting more than 0.35～0.4MPa, and the atomizing range is nearer, and generally at 0.5～1.5m, control range is little.For improving the humidifying cooling effect, adopt during engineering design and encrypt method for arranging, but improved cost of investment greatly.In addition, the operating pressure of atomizer is far longer than the operating pressure of microspray irrigation shower nozzle, about the general 0.2MPa of latter's operating pressure.When the greenhouse needs irrigation and atomization system simultaneously, often select two cover water systems for use or set up frequency conversion system to satisfy operating pressure, increased the construction investment cost.
The shape of present most of atomizer or structure have following several: (a) based on the theoretical cylindrical or conical nozzle of direct projection stream, (b) based on the theoretical fan-shaped or special-shaped nozzle of direct projection stream, (c) based on the cylindrical or conical nozzle of rotating jet theory.Wherein (a) structure is the simplest, has cylindrical and conical two kinds and crosses water flow passage, and the nozzle section configuration is circular, but the diffusion of nozzle exit and to entrainment the ability of air relatively poor, as the Fogger model atomizer of Israel NaanDan company.Required operating pressure height during the shower nozzle atomizing is in the droplet range set.(b) be on the basis of (a), make the round exit section into fan-shaped or special-shaped shape, as triangle, rectangle, double square etc., as domestic patent 00211380.5,03206676.7,03206675.9,03262677.0 etc.When current spray from nozzle, because of the swabbing action of jet, jet will spread in the shallow slot direction that contacts with air earlier, make jet be non-circular plane jet, jet turbulent extent height produces and drips than mist, but the droplet scope is less, and needs higher operating pressure.(c) be based on and design on the rotating jet principle, in the Front-end Design of cylindrical or conical nozzle the structure of putting english of fixed guide vane formula, make jet under the non-rotary condition of nozzle, produce diffusion type jet with three-dimensional velocity, its profile is the horn-like of obvious expansion, have stronger diffusion energy and entrainment surrounding medium and participate in mobile ability, form good atomizing effect, as the FLF atomizer of Israel Plastro company and the Coolnet atomizer of Netafim company.Above-mentioned three class atomizers all belong to the solid jet form, and rated operating pressure is more than 0.4MPa, and effectively range of atomized flow is less.
Summary of the invention
The purpose of this utility model is, provides that a kind of operating pressure is low, the atomizer of far firing range.
Comprise sprinkler body and nozzle in order to reach the technical scheme that the purpose of this utility model takes, it is characterized in that, in this nozzle, be provided with the self-excited oscillation cavity; Nozzle comprises nozzle body and cap of spraying nozzle, and nozzle body and sprinkler body are connected, and nozzle body and cap of spraying nozzle match and constitute inner the self-excited oscillation cavity, and the inwall of the close port of export is to the projecting inward conical surface that is.
In the above-mentioned atomizer, the structure of described the self-excited oscillation cavity is to import and export axis structure axisymmetricly along current.
In the above-mentioned atomizer, described nozzle has a plurality of, each nozzle shaft symmetrical structure, and they are arranged in horizontal plane.
In the above-mentioned atomizer, described nozzle has 4, is cross level and evenly arranges.
In the above-mentioned atomizer, the upstream inlet diameter d 1 of the self-excited oscillation cavity is less than lower exit diameter d 2, the angle of taper θ of truncated cone shape impact walls is at 100 °～120 °, the self-excited oscillation cavity inside diameter D is 6～10 times with the ratio of the upstream inlet diameter d 1 of the self-excited oscillation cavity, the self-excited oscillation cavity import and export axial distance is 2～4 times of upstream inlet diameter d 1, and the downstream nozzle of the self-excited oscillation cavity adopts conical structure.
In the above-mentioned atomizer, its inner flow passage adopts the streamlined design, to improve flow-shape, reduces hydraulic loss.
In the above-mentioned atomizer, the round exit of cap of spraying nozzle part can be designed to blind plugging, and with the nozzle matches of normal apopore, form four nozzles, three nozzles, two nozzles and one-jet effective work combination, the range of application of enlarged nozzle.
In the above-mentioned atomizer, nozzle body and cap of spraying nozzle are provided with seal washer for being threaded between them.
This atomizer in use, after current enter axisymmetric the self-excited oscillation cavity, carry out momentum-exchange with stationary fluid on every side, jet is after bumping with impact walls, than the high several times of import hydraulic pressure, and be cyclically-varying at the hydraulic pressure in chamber exit, form pulsing jet, the final pulse jet is through cone cavity, from the round exit ejaculation of nozzle.Because hydraulic pressure forms periodic pressure and increases suddenly through behind the self-excited oscillation cavity, can realize atomizing effect under lower import step pressure.The atomizing range that the pulsed jet produces is far away, and the atomizing control range is big.Atomizer of the present utility model, operation principle is different with other atomizer, and it is simple in structure, and operating pressure is lower than existing atomizer, far firing range, control area is big, can reduce to arrange the shower nozzle number, reduce cost of investment; Because operating pressure is lower, has remarkable energy saving effect, be suitable for protecting the humidifying cooling of occasions such as ground agricultural production, livestock and poultry farm.
Description of drawings
Fig. 1 is the cutaway view of a kind of atomizer of the utility model;
Fig. 2 is the structural representation of the self-excited oscillation cavity of a kind of atomizer of the utility model;
Fig. 3 is the structural representation of a kind of atomizer of the utility model;
Fig. 4 is the installation diagram of a kind of atomizer of the utility model.
Specific embodiments
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in the figure, 1 is sprinkler body, 2. is nozzle body, and 3 is cap of spraying nozzle, and 4 is seal washer, and 5 is the self-excited oscillation cavity, and 6 is the truncated cone shape impact walls, and 7 is atomizer, and 8 is antidrip device, and 9 is connector.
Figure 1 shows that an embodiment of the utility model multiinjector atomizer, Fig. 2 is the self-excited oscillation cavity structure chart of the utility model atomizer, and Fig. 3 is a kind of structural representation of the utility model atomizer.Nozzle can have a plurality of, and they are evenly arranged in horizontal plane.In the present embodiment, this atomizer is made up of sprinkler body 1 nozzle identical with four structures, and four nozzle cross are arranged.Each nozzle is made up of nozzle body 2, cap of spraying nozzle 3 and seal washer 4.Sprinkler body 1 is one minute four structure, and horizontal direction is connected easy accessibility by screw thread with four nozzle bodies 2.Nozzle body 2 and cap of spraying nozzle 3 be by being threaded, and adds in the junction and put seal washer 4, forms axisymmetric the self-excited oscillation cavity 5.
The upstream inlet diameter d 1 of the self-excited oscillation cavity 5 is less than the inlet diameter d2 (being the lower exit diameter of the self-excited oscillation cavity) of cap of spraying nozzle 3, the angle of taper θ of truncated cone shape impact walls 6 is at 100 °～120 °, the ratio of the self-excited oscillation cavity inside diameter D and the upstream inlet diameter d 1 of the self-excited oscillation cavity is within 6～10 times of scopes, the self-excited oscillation cavity is imported and exported 2～4 times of upstream inlet diameter d 1 that axial distance B is a self-excited oscillation cavity, runner in the cap of spraying nozzle 3 adopts conical structure, and the round exit cross section diameter d of this conical structure outermost end is 0.7～1.0mm.The outlet of cap of spraying nozzle 3 also can be designed to blind plugging, and other structure is identical.Can be according to special occasions, cap of spraying nozzle and the stifled cap of spraying nozzle of band the region between the heart and the diaphragm of taking mouth out of mix use, form the different numbers combinations of effective main jet, to satisfy different atomizing requirements.
Shown in Figure 4, the water inlet of sprinkler body 1 can link to each other by tight fit with antidrip device 8, connector 9, also can directly be connected with connector 9 tight fits, and connector 9 links to each other with polyethylene pipe by the barb-shaped structure.
Embodiment shown in Figure 4 provide a kind of under suspension status the multiinjector atomizer of operate as normal, it is made up of with four identical nozzles of structure sprinkler body, the import of sprinkler body adopts the tight fit method to link to each other with antidrip device or special connecting piece.Nozzle is threaded with sprinkler body.The inner flow passage streamlined design of atomizer, the self-oscillation technology is adopted in the design of nozzle, is made up of nozzle body, cap of spraying nozzle and seal washer etc., has realized a kind of pulsing jet spray effect.
Specially designed the self-excited oscillation cavity in the nozzle of the present utility model utilizes the self-excited oscillation pulse principle, can produce the atomizing operating pressure that is several times as much as inlet pressure, realizes the pulsed injection, and fogdrop diameter is little, spraying range is big.It is simple in structure, easy to connect, be a kind of atomizer that is suitable for protecting humidifying cooling requirements such as ground agricultural production, livestock and poultry farm
Atomizer of the present utility model; the material selection engineering plastics, simple in structure, have tangible effect for the humidifying cooling of protecting occasions such as ground agricultural planting, livestock and poultry farm; because operating pressure is lower, spray far firing range, can reduce construction investment cost and energy-saving effect again.
It should be noted that at last: above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (8)
1, a kind of atomizer comprises sprinkler body and nozzle, it is characterized in that, is provided with the self-excited oscillation cavity in this nozzle; Nozzle comprises nozzle body and cap of spraying nozzle, and nozzle body and sprinkler body are connected, and nozzle body and cap of spraying nozzle match and constitute inner the self-excited oscillation cavity, and the inwall of the close port of export is to the projecting inward conical surface that is.
2, atomizer according to claim 1 is characterized in that, the structure of described the self-excited oscillation cavity is to import and export axis structure axisymmetricly along current.
3, atomizer according to claim 1 is characterized in that, described nozzle has a plurality of, each nozzle shaft symmetrical structure, and they are arranged in horizontal plane.
4, according to claim 1 or 2 or 3 described atomizers, it is characterized in that described nozzle has 4, be cross level and evenly arrange.
5, according to claim 1 or 2 or 3 described atomizers, it is characterized in that, the upstream inlet diameter (d1) of the self-excited oscillation cavity is less than lower exit diameter (d2), the angle of taper of truncated cone shape impact walls (θ) is at 100 °～120 °, the self-excited oscillation cavity internal diameter (D) is 6～10 times with the ratio of the upstream inlet diameter (d1) of the self-excited oscillation cavity, the self-excited oscillation cavity import and export axial distance is 2～4 times of upstream inlet diameter (d1), and the downstream nozzle of the self-excited oscillation cavity adopts conical structure.
According to claim 1 or 2 or 3 described atomizers, it is characterized in that 6, its inner flow passage adopts the streamlined design.
According to claim 1 or 2 or 3 described atomizers, it is characterized in that 7, the round exit of portion nozzle cap is blind plugging.
According to claim 1 or 2 or 3 described atomizers, it is characterized in that 8, nozzle body and cap of spraying nozzle are provided with seal washer for being threaded between them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620158703 CN200981030Y (en) | 2006-12-05 | 2006-12-05 | Atomized spraying head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620158703 CN200981030Y (en) | 2006-12-05 | 2006-12-05 | Atomized spraying head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200981030Y true CN200981030Y (en) | 2007-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620158703 Expired - Fee Related CN200981030Y (en) | 2006-12-05 | 2006-12-05 | Atomized spraying head |
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| Country | Link |
|---|---|
| CN (1) | CN200981030Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513234A (en) * | 2012-01-05 | 2012-06-27 | 何念民 | Jet flow ultralow frequency ejector |
| WO2012092688A1 (en) * | 2011-01-04 | 2012-07-12 | 北京航空航天大学 | Self-excitation oscillation jet impact nozzle for complex fluid atomization |
| WO2012129719A1 (en) * | 2011-03-28 | 2012-10-04 | 北京航空航天大学 | Self-excitation oscillation jet impact nozzle having resonant cavity with taper reflecting surface |
| CN105149123A (en) * | 2015-10-10 | 2015-12-16 | 浙江大学 | Underwater crack corrosion jet nozzle |
| CN107570336A (en) * | 2017-09-19 | 2018-01-12 | 陈勇 | A kind of atomizer |
| CN110594041A (en) * | 2019-09-09 | 2019-12-20 | 北京航空航天大学 | Self-oscillation nozzle for atomizing granular gel-containing propellant of ramjet engine |
| CN113243872A (en) * | 2021-06-03 | 2021-08-13 | 嵊州市浙江工业大学创新研究院 | Self-oscillation atomizing nozzle device for dish washer, control method and control terminal |
| CN113322596A (en) * | 2020-08-19 | 2021-08-31 | 山东玻纤集团股份有限公司 | High-efficient glass fiber cloth weaving humidification device |
-
2006
- 2006-12-05 CN CN 200620158703 patent/CN200981030Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012092688A1 (en) * | 2011-01-04 | 2012-07-12 | 北京航空航天大学 | Self-excitation oscillation jet impact nozzle for complex fluid atomization |
| WO2012129719A1 (en) * | 2011-03-28 | 2012-10-04 | 北京航空航天大学 | Self-excitation oscillation jet impact nozzle having resonant cavity with taper reflecting surface |
| CN102513234A (en) * | 2012-01-05 | 2012-06-27 | 何念民 | Jet flow ultralow frequency ejector |
| CN102513234B (en) * | 2012-01-05 | 2014-06-25 | 何念民 | Jet flow ultralow frequency ejector |
| CN105149123A (en) * | 2015-10-10 | 2015-12-16 | 浙江大学 | Underwater crack corrosion jet nozzle |
| CN105149123B (en) * | 2015-10-10 | 2017-09-08 | 浙江大学 | One kind splits erosion jet nozzle under water |
| CN107570336A (en) * | 2017-09-19 | 2018-01-12 | 陈勇 | A kind of atomizer |
| CN110594041A (en) * | 2019-09-09 | 2019-12-20 | 北京航空航天大学 | Self-oscillation nozzle for atomizing granular gel-containing propellant of ramjet engine |
| CN113322596A (en) * | 2020-08-19 | 2021-08-31 | 山东玻纤集团股份有限公司 | High-efficient glass fiber cloth weaving humidification device |
| CN113243872A (en) * | 2021-06-03 | 2021-08-13 | 嵊州市浙江工业大学创新研究院 | Self-oscillation atomizing nozzle device for dish washer, control method and control terminal |
| CN113243872B (en) * | 2021-06-03 | 2022-08-02 | 嵊州市浙江工业大学创新研究院 | Self-oscillation atomizing nozzle device for dish washer, control method and control terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071128 Termination date: 20101205 |