CN111346751A - Magnetoelectric low-voltage electrostatic ultrasonic atomization spray head - Google Patents
Magnetoelectric low-voltage electrostatic ultrasonic atomization spray head Download PDFInfo
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- CN111346751A CN111346751A CN202010196800.0A CN202010196800A CN111346751A CN 111346751 A CN111346751 A CN 111346751A CN 202010196800 A CN202010196800 A CN 202010196800A CN 111346751 A CN111346751 A CN 111346751A
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- gas
- laval
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- 238000000889 atomisation Methods 0.000 title claims abstract description 10
- 239000007921 spray Substances 0.000 title claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 53
- 230000006698 induction Effects 0.000 claims description 34
- 239000002184 metal Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 230000003068 static effect Effects 0.000 claims description 8
- 239000011810 insulating material Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 238000007670 refining Methods 0.000 abstract description 5
- 238000005507 spraying Methods 0.000 abstract description 4
- 239000003814 drug Substances 0.000 abstract description 3
- 239000004020 conductor Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000003595 mist Substances 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000001970 hydrokinetic effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
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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
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
- B05B5/03—Discharge apparatus, e.g. electrostatic spray guns characterised by the use of gas, e.g. electrostatically assisted pneumatic spraying
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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
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
- B05B5/053—Arrangements for supplying power, e.g. charging power
Landscapes
- Special Spraying Apparatus (AREA)
Abstract
A magnetoelectric low-voltage electrostatic ultrasonic atomization spray head relates to the field of spraying machinery in agricultural engineering, and comprises an air inlet sleeve, a flow guide pipe and a Laval pipe; the gas inlet sleeve is provided with a liquid inlet hole, the gas inlet sleeve is a hollow stepped hole, the gas inlet pipe is sleeved in the inlet end of the gas inlet sleeve, the flow guide pipe is arranged in the outlet end of the gas inlet sleeve, gas enters the flow guide pipe after passing through the middle section of the gas inlet sleeve through the gas inlet pipe, the outlet end of the flow guide pipe is connected with a laval pipe, the fixing cap is arranged on the outer side of the laval pipe, and the fixing cap is connected with the gas inlet sleeve; the output end of the fixed cap is connected with a resonance body; small liquid inlet holes are formed in the flow guide pipe; the liquid flows through the gap between the air inlet sleeve and the flow guide pipe through the liquid inlet hole, then enters the Laval pipe through the liquid inlet small hole for atomization, and then enters the resonator. According to the invention, through refining the liquid drops for multiple times and simultaneously enabling the fog drops to be electrified in a contact manner, the adhesion force of the fog drops on plants is improved, and thus the spraying efficiency and the utilization rate of the medicine are improved.
Description
Technical Field
The invention belongs to the field of spraying machinery in agricultural engineering, and relates to a magnetoelectric low-voltage electrostatic ultrasonic atomizing nozzle.
Background
At present, various types of nozzles are widely applied in the field of agricultural engineering, and particularly, a plurality of parts worth deep research are arranged on the aspect of ultrasonic atomization technology; the piezoelectric type atomizing spray head has the advantages that the diameter of droplets is small, a good refining effect is achieved, but the piezoelectric type atomizing spray head has the defect that poor adhesion and small atomizing amount are difficult to meet large-area pesticide application; while the conventional mechanical atomizing nozzle has a sufficiently large atomizing amount, the droplets have a large diameter and are less adhesive.
Therefore, the current technology has the following problems: firstly, the condition of small diameter of fog drops is met, but the quantity of the fog drops cannot be reached; and secondly, under the condition of having the fog drop quantity, the diameter requirement of the fog drops cannot be met. The prior art has also improved upon the above problems, such as with electro-acoustic transducers and hydrokinetic atomizing nozzles, but still falls short of practical needs.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a magnetoelectric low-voltage electrostatic ultrasonic atomizing spray head which integrates the advantages of a Laval principle technology, a piezoelectric ultrasonic atomizing technology and an electrostatic atomizing technology so as to improve the atomizing amount and achieve the effect of refining droplets for many times, and the droplets are charged after passing through an electrostatic induction polar ring, so that the droplets are effectively adsorbed on plants and the utilization rate of medicines is improved.
The invention is realized by the following technical scheme:
a magnetoelectric low-voltage electrostatic ultrasonic atomization spray head comprises an air inlet sleeve, a flow guide pipe and a Laval pipe; the gas inlet sleeve is provided with a liquid inlet hole, the gas inlet sleeve is a hollow hole, the gas inlet pipe is sleeved in the inlet end of the gas inlet sleeve, the flow guide pipe is arranged in the outlet end of the gas inlet sleeve, gas enters the flow guide pipe after passing through the middle section of the gas inlet sleeve through the gas inlet pipe, the outlet end of the flow guide pipe is connected with a laval pipe, the fixing cap is arranged on the outer side of the laval pipe, and the fixing cap is connected with the gas inlet sleeve; the output end of the fixed cap is connected with a resonance body; small liquid inlet holes are formed in the flow guide pipe; the liquid flows through the gap between the air inlet sleeve and the flow guide pipe through the liquid inlet hole, then enters the Laval pipe through the liquid inlet small hole for atomization, and then enters the resonator.
Furthermore, the tail end of the resonant body is connected with two resonant cavities, one resonant cavity port is sealed, one end of the coil support is arranged on the other resonant cavity port, and the other end of the coil support is also provided with an electrostatic induction polar ring.
Further, a permanent magnet is arranged on the inner side of the coil support, a coil is arranged in the permanent magnet, and gas-liquid mixed gas enters a gap between the permanent magnet and the coil through a coil end cover on the coil support, flows out after being atomized again through a mesh metal wire arranged in the electrostatic induction polar ring, and is sprayed out.
Furthermore, a sealing ring is arranged at the contact position of the flow guide pipe and the air inlet sleeve.
Further, a copper washer is arranged between the fixing cap and the resonator body.
Furthermore, the reticular metal wire is fixedly arranged at the center of the inner ring of the electrostatic induction polar ring.
Furthermore, the resonance body and the resonant cavities form a herringbone structure, included angles between the resonance body and the two resonant cavities are 120 degrees, and the diameter of a gas-liquid inlet of the resonance body corresponds to the diameter of a gas-liquid outlet of the Laval tube.
Furthermore, the static induction polar ring is made of annular pure copper, and the surface of the outer ring of the static induction polar ring is uniformly coated with insulating materials.
Further, the coil support is made of high-hardness plastic.
Furthermore, a gap is reserved between the fixed cap and the flow guide pipe, and one end face of the fixed cap is fixedly connected with the outlet end of the laval pipe.
The invention has the beneficial effects that:
1. the high-pressure gas enters the central channel of the draft tube and the Laval tube through the gas inlet pipe and then is accelerated to supersonic speed from subsonic speed, high-speed gas flow is formed at the outlet of the Laval tube, at the moment, liquid drops flow to the small liquid inlet hole of the Laval tube along with the gap through the liquid inlet hole, and then the liquid drops are refined for the first time.
2. The fog drops enter the resonant cavity, and the secondary atomization effect is achieved after the fog drops are subjected to high-frequency vibration of the resonant cavity;
3. the high-speed fog drop after refining gets into the space that coil support and coil end cover enclose, promote the coil and rotate fast, according to the electromagnetic induction law, partial conductor cuts magnetic induction linear motion in the magnetic field in the closed circuit, the conductor both ends can produce induced electromotive force, the coil both ends produce low-voltage electromotive force promptly, thereby make electrostatic induction polar ring electrified, and then make the netted wire in the electrostatic induction polar ring electrified, the fog drop makes the fog drop contact electrified through netted wire at last, stir the fog drop simultaneously and can take place the third time and refine under the fast rotation of coil.
4. The central position of the inner ring of the electrostatic induction polar ring is provided with a reticular metal wire which can enable the fog drops to be charged in a contact way.
Drawings
FIG. 1 is a schematic structural view of a magnetoelectric low-voltage electrostatic ultrasonic atomizing nozzle according to the present invention;
FIG. 2 is a schematic view of a Laval tube flow line according to the present invention;
FIG. 3 is a schematic view of the coil and permanent magnet of FIG. 1 of the present invention within the interior space of the coil support and coil end cap;
fig. 4 is a front view of the electrostatic induction polar ring according to the present invention.
The reference numbers are as follows:
1-an air inlet pipe, 2-an air inlet sleeve, 3-a sealing ring, 4-a liquid inlet hole, 5-a flow guide pipe, 6-a laval pipe, 7-a fixed cap, 8-a copper gasket, 9-a resonator, 10-a resonant cavity, 11-a coil bracket, 12-a lead, 13-a permanent magnet, 14-a coil, 15-a coil end cover, 16-an electrostatic induction polar ring, 17-a gas-liquid outlet and 18-a reticular metal wire; 20-small liquid inlet hole.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The following first describes in detail embodiments according to the present invention with reference to the accompanying drawings
With reference to fig. 1 to 4, the magnetoelectric low-voltage electrostatic ultrasonic atomizer comprises an air inlet pipe 1, an air inlet sleeve 2, a seal ring 3, a liquid inlet hole 4, a flow guide pipe 5, a laval pipe 6, a fixing cap 7, a copper gasket 8, a resonator 9, a resonant cavity 10, a coil support 11, a lead 12, a permanent magnet 13, a coil 14, a coil end cover 15, an electrostatic induction polar ring 16, a gas-liquid outlet 17, a mesh metal wire 18 and a liquid inlet small hole 20;
the intake pipe 1 sets up the central point who puts at air inlet sleeve 2, feed liquor hole 4 sets up on air inlet sleeve's lateral wall, air inlet sleeve 2's right-hand member is connected with the left end of fixed block 7, honeycomb duct 5 and laval pipe 6 are installed in the inner space that air inlet sleeve 2 and fixed block 7 enclose, be equipped with sealing washer 3 between honeycomb duct 5 and the air inlet sleeve 2, be equipped with a feed liquor aperture 20 on laval pipe 6's the lateral wall, its diameter is 0.9 ~ 1.2mm, the entrance point of laval pipe 6 is connected with honeycomb duct 5's right-hand member terminal surface, the exit end of laval pipe 6 is fixed with the right-hand member terminal surface of fixed block 7.
The resonator 9 and the resonant cavity 10 are herringbone, the included angle between the resonator 9 and the resonant cavity is 120 degrees, the fog liquid inlet end of the resonator 9 is connected with the right end of the fixed cap 7, a copper gasket 8 is arranged at the joint, and one end of the fog liquid outlet of the resonator 9 is fixedly installed with the coil support 11.
The coil support 11 and the coil end cover 15 are fixedly installed, the permanent magnet 13 and the coil 14 are installed in a space enclosed by the coil support 11 and the coil end cover 15, and two ends of the coil 14 are respectively connected with the end face of the liquid inlet of the electrostatic induction polar ring 16 through the conducting wire 12.
The fog inlet end of the electrostatic induction polar ring 16 is fixedly connected with the coil support 11, the central position of the inner ring of the electrostatic induction polar ring 16 is provided with a reticular metal wire 18, the outer ring of the electrostatic induction polar ring 16 is uniformly coated with insulating materials, and the other end of the electrostatic induction polar ring 16 is provided with a gas-liquid outlet 17.
As shown in figure 2, the flow line of the Laval tube is schematic, the diameter of an air inlet of the Laval tube 6 is 6-8 mm, the diameter of a throat is 2.2-2.6 mm, the diameter of an air outlet is 5-7 mm, small liquid inlet holes are formed in the side wall of the Laval tube, the speed of the air flow is subsonic when the air flow passes through a contraction stage under a normal working state, the air flow passes through the throat, namely an acceleration stage, the speed reaches sonic speed, and the air flow enters an expansion stage and is supersonic until the air flow reaches an outlet. The differential expression is shown according to the mass continuity equation of the gas flow unit body in the Laval pipe 6: ρ uA ═ is constant (ρ + d ρ) (u + du) (a + dA), where ρ is density, u is fluid velocity, and a is cross-sectional area; then according to the relation between the air velocity and the flow passage sectional area, the formula is as follows:
m is the Mach number of the air flow, and the formula shows that when the air flow is subsonic and M is less than 1, if du is more than 0, dA is less than 0; if du < 0, dA > 0. The above description shows that when the subsonic gas flow moves along the streamline of the laval pipe 6 in an accelerating way, the fluid cross-sectional area is necessarily gradually reduced; when flowing at supersonic speed, M > 1, if du > 0, dA > 0; if du < 0, dA < 0. The above description shows that when the supersonic gas flow moves along the streamline of the laval pipe 6 with acceleration, the cross-sectional area of the flow must be increased slowly, and the supersonic flow is opposite to the subsonic flow. In summary, the effect is best when the mach number M of the gas flow at the throat of the laval pipe 6 is 1.
With reference to fig. 1, a liquid inlet hole 4 is formed in a side wall of an air inlet sleeve 2, an air inlet pipe 1 is arranged at a center position of a left end of the air inlet sleeve 2, a right end of the air inlet sleeve 2 is connected with one end of a fixing cap 7, a seal ring 3 is arranged between the air inlet sleeve 2 and a guide pipe 5, the guide pipe 5 and a laval pipe 6 are arranged in an inner space defined by the air inlet sleeve 2 and the fixing cap 7, a left end of the laval pipe 6 is connected with a right end of the guide pipe 5, a right end of the laval pipe 6 is connected with an end face of the fixing cap 7, a liquid inlet small hole 20 is formed in the side wall of the laval pipe 6, and a gap formed by the air inlet sleeve 2, the guide pipe 5, the laval pipe 6 and the fixing; the resonant body 9 and the resonant cavity 10 are optimized to be in a herringbone shape, the gas-liquid inlet end of the resonant body 9 is connected with the fixing cap 7, the resonant body 9 and the fixing cap 7 are provided with copper gaskets 8, and in order to ensure that the resonant body 9 can be installed more firmly, the gas-liquid outlet end of the resonant body 9 is fixedly installed with the coil support 11. The coil support 11 is connected with the coil end cover 15, the permanent magnet 13 is fixedly arranged on the inner side of the coil support 11, the coil 14 is arranged in an inner space surrounded by the coil support 11 and the coil end cover 15, and two ends of the coil 14 are connected with the end face of a liquid inlet of the electrostatic induction polar ring 16 through the lead 12; the electrostatic induction polar ring 16 is fixedly installed with the other end of the coil support 11, and the reticular metal wire 18 is fixedly installed at the center position of the inner ring of the electrostatic induction polar ring 16; the diameter of the air inlet pipe 1 is 14-16 mm, the length of the air inlet pipe is 30-33 mm, the diameter of a central through hole of the draft tube 5 is 8-10 mm, the length of the central through hole of the draft tube is 35-38 mm, and the diameter of the liquid inlet hole 4 is 5-7 mm; the diameter of an inlet of the Laval pipe 6 is 8-10 mm, the diameter of a throat is 2.2-2.6 mm, the diameter of an outlet of the Laval pipe is 5-7 mm, and a small liquid inlet hole is formed in the side wall of the Laval pipe 6 and is 0.9-1.2 mm; a gap is reserved between the fixed cap 7 and the flow guide pipe 5, and one end face of the fixed cap 7 is fixedly connected with the outlet end of the Laval pipe 6. The resonant body 9 and the resonant cavity 10 are designed according to a herringbone shape, the included angle between the resonant body 9 and the resonant cavity 10 is 120 degrees, the diameter of a gas-liquid inlet of the resonant body 9 corresponds to the diameter of a gas-liquid outlet of the Laval tube 6, and the diameter of the gas-liquid outlet of the resonant body 9 is 6-8 mm; a copper gasket 8 is arranged between the resonator 9 and the fixed cap 7; the coil support 11 is made of high-hardness plastic. The static induction polar ring 16 is made of annular pure copper, the inner diameter of the static induction polar ring is 6-8 mm, a meshed metal wire 18 is arranged at the center of the inner ring of the static induction polar ring 16, and the surface of the outer ring of the static induction polar ring 16 is uniformly coated with an insulating material.
The working process of the magnetoelectric low-voltage electrostatic ultrasonic atomizing nozzle according to the embodiment of the invention comprises the following steps:
according to the invention, by utilizing the Laval basic principle, the resonance body working principle and the magnetic induction line cutting motion of part of the conductor of the closed loop in the magnetic field, induced electromotive force is generated at two ends of the conductor, so that liquid drops are refined for multiple times, and meanwhile, fog drops can be electrified in a contact manner, so that the adhesion force of the fog drops on plants is improved, and the spraying efficiency and the utilization rate of medicines are improved. High-pressure gas enters a central channel of a draft tube 5 and a Laval tube 6 through a gas inlet pipe 1 and then is accelerated to supersonic speed from subsonic speed, high-speed gas flow is formed at an outlet of the Laval tube 6, liquid drops flow to a liquid inlet small hole of the Laval tube 6 along with gaps through a liquid inlet hole 4 at the moment, and then the liquid drops are refined for the first time according to the Laval working principle; the further refined fogdrops enter the resonant cavity 10, and according to the working principle of the resonant body 9, the fogdrops vibrate at a high speed to achieve a secondary atomization effect, and the resonant cavity 10 is designed into a herringbone shape so that the fogdrops can be more fully refined in the process, and the vibration frequency of the fogdrops in unit time can be increased; then, the high-speed mist droplets after secondary refining enter an inner space surrounded by the coil support 11 and the coil end cover 15 from an outlet of the resonator 9, the coil 14 is pushed to rotate quickly, according to the law of electromagnetic induction, part of conductors in a closed loop cut magnetic induction lines in a magnetic field to move, induced electromotive force can be generated at two ends of the conductors, namely low-voltage electromotive force is generated at two ends of the coil 14, so that the electrostatic induction polar ring 16 is electrified, the reticular metal wires 18 in the electrostatic induction polar ring 16 are electrified, finally, the mist droplets are electrified through contact of the reticular metal wires 18, meanwhile, the mist droplets are stirred under the quick rotation of the coil 14 to be refined for the third time, and finally, the high-speed electrified mist droplets are sprayed out from the gas-liquid outlet 17.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.
Claims (10)
1. A magnetoelectric low-voltage electrostatic ultrasonic atomization spray head is characterized by comprising an air inlet sleeve (2), a flow guide pipe (5) and a Laval tube (6); the gas inlet pipe (2) is provided with a liquid inlet hole (4), the gas inlet pipe (2) is a hollow hole, the gas inlet pipe (1) is sleeved in the inlet end of the gas inlet pipe (2), the flow guide pipe (5) is arranged in the outlet end of the gas inlet pipe (2), gas enters the flow guide pipe (5) through the gas inlet pipe (1) after passing through the middle section of the gas inlet pipe (2), the outlet end of the flow guide pipe (5) is connected with a laval pipe (6), the fixing cap (7) is arranged on the outer side of the laval pipe (6), and the fixing cap (7) is connected with the gas inlet pipe (2); the output end of the fixed cap (7) is connected with a resonator (9); the honeycomb duct (5) is provided with small liquid inlet holes (20); liquid flows through a gap between the air inlet sleeve (2) and the draft tube (5) through the liquid inlet hole (4), then enters the Laval tube (6) through the liquid inlet small hole (20), is atomized and then enters the resonator (9).
2. The magnetoelectric low-voltage electrostatic ultrasonic atomizing spray head according to claim 1, characterized in that two resonant cavities (10) are connected to the end of the resonant body (9), wherein one resonant cavity (10) is sealed at the port, one end of a coil support (11) is arranged on the other resonant cavity (10), and an electrostatic induction polar ring (16) is further arranged on the other end of the coil support (11).
3. The magnetoelectric low-voltage electrostatic ultrasonic atomizing nozzle according to claim 2, characterized in that a permanent magnet (13) is arranged inside the coil support (11), a coil (14) is arranged inside the permanent magnet (13), and the gas-liquid mixture enters a gap between the permanent magnet (13) and the coil (14) through a coil end cover (15) on the coil support (11) and is atomized and then flows out to be atomized again through a mesh wire (18) arranged in the electrostatic induction polar ring (16) and is then sprayed.
4. The magnetoelectric low-voltage electrostatic ultrasonic atomizer according to claim 1, characterized in that a sealing ring (3) is disposed at the contact position of the draft tube (5) and the air inlet sleeve (2).
5. The magnetoelectric low-voltage electrostatic ultrasonic atomizer according to claim 1, characterized in that a copper washer (8) is disposed between the fixing cap (7) and the resonator (9).
6. The magnetoelectric low-voltage electrostatic ultrasonic atomizer of claim 3, wherein said expanded metal wire (18) is fixedly installed at the center of the inner ring of the electrostatic induction pole ring (16).
7. The magnetoelectric low-voltage electrostatic ultrasonic atomizing spray head according to claim 2, characterized in that the resonator (9) and the resonant cavities (10) form a herringbone structure, the included angle between the resonator (9) and two resonant cavities (10) is 120 degrees, and the gas-liquid inlet diameter of the resonator (9) corresponds to the gas-liquid outlet diameter of the laval tube (6).
8. The magnetoelectric low-voltage electrostatic ultrasonic atomizer according to any one of claims 2, 3 or 6, wherein the static induction pole ring (16) is made of annular pure copper, and the outer ring surface of the static induction pole ring (16) is uniformly coated with an insulating material.
9. The magnetoelectric low-voltage ultrasonic atomizer according to claim 2, wherein the material of the coil support (11) is a high-hardness plastic.
10. The magnetoelectric low-voltage electrostatic ultrasonic atomizer according to claim 1, characterized in that a gap is left between the fixing cap (7) and the draft tube (5), and one end of the fixing cap (7) is fixedly connected with the outlet end of the laval tube (6).
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| CN202010196800.0A CN111346751B (en) | 2020-03-19 | 2020-03-19 | Magnetoelectric low-voltage electrostatic ultrasonic atomization spray head |
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| CN202010196800.0A CN111346751B (en) | 2020-03-19 | 2020-03-19 | Magnetoelectric low-voltage electrostatic ultrasonic atomization spray head |
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| CN111346751A true CN111346751A (en) | 2020-06-30 |
| CN111346751B CN111346751B (en) | 2021-08-03 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113701394A (en) * | 2020-10-23 | 2021-11-26 | 中国科学院理化技术研究所 | Thermoacoustic driving refrigerating device |
| CN113751219A (en) * | 2021-08-31 | 2021-12-07 | 江苏大学 | Magnetic suspension high-speed impact atomization nozzle |
| CN114345613A (en) * | 2021-12-08 | 2022-04-15 | 江苏大学 | Magnetoelectric alternating-current electrostatic ultrasonic atomization spray head and working method |
| CN114345571A (en) * | 2021-12-23 | 2022-04-15 | 江苏大学 | Air-assisted ultrasonic magnetization electrostatic nozzle |
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| DE102007051063A1 (en) * | 2007-10-17 | 2009-04-23 | Swingtec Gmbh | Apparatus for discharging spray or mist substances with a vibrating fire burner and mist tube for such a device |
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