CN113414020A - Gas-liquid two-phase high-voltage electrostatic spray head and spray device - Google Patents
Gas-liquid two-phase high-voltage electrostatic spray head and spray device Download PDFInfo
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- CN113414020A CN113414020A CN202110545728.2A CN202110545728A CN113414020A CN 113414020 A CN113414020 A CN 113414020A CN 202110545728 A CN202110545728 A CN 202110545728A CN 113414020 A CN113414020 A CN 113414020A
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- liquid
- spray head
- nozzle
- gas
- sprayer
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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
- B05B7/0491—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 the liquid and the gas being mixed at least twice along the flow path of the liquid
-
- 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
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- Electrostatic Spraying Apparatus (AREA)
Abstract
The invention discloses a gas-liquid two-phase high-voltage electrostatic sprayer and a spraying device, which comprise an electrostatic induction component, a nozzle, a sprayer cap, a sprayer core and a sprayer body; the side surface of the spray head body is provided with an air inlet pipe, a spray head core is arranged in the spray head body, the upper section and the lower section of the spray head core are respectively matched with the inner wall of the spray head body, the middle section and the spray head body form a mixing cavity, and the mixing cavity is communicated with the air inlet pipe; along the liquid inlet direction, the tail part of the spray head body is connected with one end of a spray head cap, the other end of the spray head cap is connected with a nozzle, and the nozzle is communicated with the mixing cavity; the static induction component is arranged on the outer ring of the nozzle cap, and liquid drops sprayed out of the nozzle are positioned in a high-voltage electric field formed by the static induction component.
Description
Technical Field
The invention belongs to the technical field of atomizing nozzles, and particularly relates to a gas-liquid two-phase high-voltage electrostatic nozzle and a spraying device.
Background
In the spraying operation of industrial and agricultural production, the attachment effect of the fog drops on the target object is poor, and particularly, the attachment capacity of the back flow surface relative to the fog flow is insufficient, so that the difference between the attachment amounts of the fog drops on the back flow surface and the head flow surface is large, and a better uniform attachment effect cannot be achieved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the gas-liquid two-phase high-voltage electrostatic sprayer which can improve the attachment capacity of fog drops on the back flow surface of a target object, improve the attachment amount of the fog drops on the target object and achieve a better uniform attachment effect.
In order to achieve the purpose, the invention is realized by the following technical scheme:
in a first aspect, the invention provides a gas-liquid two-phase high-voltage electrostatic nozzle, which comprises an electrostatic induction component, a nozzle cap, a nozzle core and a nozzle body; the side surface of the spray head body is provided with an air inlet pipe, a spray head core is arranged in the spray head body, the upper section and the lower section of the spray head core are respectively matched with the inner wall of the spray head body, the middle section and the spray head body form a mixing cavity, and the mixing cavity is communicated with the air inlet pipe; along the liquid inlet direction, the tail part of the spray head body is connected with one end of a spray head cap, the other end of the spray head cap is connected with a nozzle, and the nozzle is communicated with the mixing cavity; the static induction component is arranged on the outer ring of the nozzle cap, and liquid drops sprayed out of the nozzle are positioned in a high-voltage electric field formed by the static induction component.
As a further technical scheme, a liquid inlet hole is formed in the lower section of the nozzle core, an arc wall is arranged at the middle section of the nozzle core, and liquid can impact the arc wall surface after being ejected from the liquid inlet hole to realize primary atomization of the liquid.
As a further technical scheme, the liquid inlet hole comprises two sections, wherein the front section is a conical hole with the radius gradually reduced, and the rear section is a cylindrical hole along the liquid inlet direction.
As a further technical scheme, the middle section is a rectangular arm, an arc hole is formed in the rectangular arm, and the inner wall of the arc hole forms the arc wall.
As a further technical scheme, the lower section is a cylinder, a sealing ring is arranged on the outer ring of the cylinder, and the sealing ring seals a gap between the spray head core and the spray head body.
As a further technical scheme, the upper section is a cylinder, and a through hole communicated with the mixing cavity is formed in the cylinder.
As a further technical solution, the static induction component includes an electrode mounting base, a first sector induction electrode, and a second sector induction electrode; the first fan-shaped induction electrode and the second fan-shaped induction electrode are respectively arranged at the upper end and the lower end of the electrode seat, and the first fan-shaped induction electrode and the second fan-shaped induction electrode are connected with the positive electrode and the negative electrode of the high-voltage power supply to form a high-voltage electric field.
As a further technical scheme, a positioning groove is formed in the inner side wall of the electrode mounting seat, and a positioning bulge matched with the positioning groove is formed in the outer side wall of the spray head cap.
In a second aspect, the invention further provides a spraying device, which comprises the gas-liquid two-phase high-voltage electrostatic nozzle.
The invention has the following beneficial effects:
the invention is designed with a nozzle core, the nozzle core and the nozzle body are installed and matched to provide a mixing cavity for liquid atomization, the liquid in the mixing cavity is atomized by impacting the arc wall surface above the liquid inlet hole, meanwhile, the pressure gas entering from the gas inlet hole can further atomize the liquid, the liquid in the mixing cavity can realize secondary atomization, and the uniform mixing of the gas and the liquid in the mixing cavity is realized. The mixed fog drops are carried by the air flow and are sprayed out through the nozzle, and when the fog drops from the nozzle flow through a high-voltage electric field between the upper induction electrode and the lower induction electrode, electric charges can be induced on the surfaces of the fog drops, so that the fog drops are electrified. The charged droplets have adsorption characteristics to the target object, and a better droplet deposition coverage effect can be realized.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a front view of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an embodiment of the present invention;
FIG. 3 is a side plan view of a static induction component according to an embodiment of the invention;
FIG. 4 is a cross-sectional view of a static induction component of an embodiment of the present invention;
FIG. 5 is a front view of a showerhead body according to an embodiment of the present invention;
FIG. 6 is a cross-sectional view of a showerhead body according to an embodiment of the invention;
FIG. 7 is a front view of a showerhead cartridge according to an embodiment of the present invention;
FIG. 8 is a cross-sectional view of a showerhead cartridge according to an embodiment of the invention;
FIG. 9 is a front view of a nozzle of an embodiment of the present invention;
FIG. 10 is a cross-sectional view of a nozzle in accordance with an embodiment of the present invention;
fig. 11 is a front view of a head cap according to an embodiment of the present invention;
fig. 12 is a sectional view of a head cap according to an embodiment of the present invention;
fig. 13 is an installation schematic of an embodiment of the invention.
In the figure: the spacing or dimensions between each other are exaggerated to show the location of the various parts, and the illustration is for illustrative purposes only.
1: a static electricity induction component; 2: a nozzle; 3: a nozzle cap; 4: a nozzle core; 5: a spray head body; 6: an electrode mount; 7: a first sector-shaped induction electrode; 8: a second sector-shaped induction electrode; 9: an air inlet connector; 10: a liquid inlet connector; 11: an O-shaped sealing ring; 12: a liquid inlet hole; 13: a gas-liquid channel; 14: installing a positioning hole; 15: mounting a boss; 16: installing a positioning hole on the nozzle; 17: a nozzle body mounting hole; 18: a mounting head; 19: the nozzle core is provided with a positioning hole; 20, circular arc wall surface.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, unless the invention expressly state otherwise, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
as described in the background art, in the spraying operation of industrial and agricultural production, the attachment effect of the mist droplets on the target object is not good, and particularly, the attachment capability of the back flow surface relative to the mist flow is not enough, so that the attachment amount difference between the mist droplets on the back flow surface and the mist flow surface is large, and a good uniform attachment effect cannot be achieved.
In a typical embodiment of the present invention, as shown in fig. 1, fig. 2, and fig. 13, the gas-liquid two-phase high-voltage electrostatic nozzle disclosed in this embodiment includes an electrostatic induction component 1, a nozzle 2, a nozzle cap 3, a nozzle core 4, and a nozzle body 5; the static induction component 1 is arranged on an installation positioning lug 15 on the spray head cap 3 through an installation positioning hole 14 on the static induction component; the nozzle 2 is arranged in a nozzle mounting positioning hole 16 on the nozzle cap 3; the nozzle core 4 is arranged in a nozzle core mounting positioning hole 19 on the nozzle body 5, the upper section and the lower section of the nozzle core 4 are respectively matched with the inner wall of the nozzle body 5, the middle section and the nozzle body form a mixing cavity, and the mixing cavity is communicated with the air inlet pipe. The head cap 3 is connected to a mounting head 18 of the head body 5 through a head body mounting hole 17 thereof. The invention is designed with a nozzle core, the nozzle core and the nozzle body are installed and matched to provide a mixing cavity for liquid atomization, the liquid in the mixing cavity is atomized by impacting the arc wall surface above the liquid inlet hole, meanwhile, the pressure gas entering from the gas inlet hole can further atomize the liquid, the liquid in the mixing cavity can realize secondary atomization, and the uniform mixing of the gas and the liquid in the mixing cavity is realized. The mixed fog drops are carried by the air flow and are sprayed out through the nozzle, and when the fog drops from the nozzle flow through a high-voltage electric field between the upper induction electrode and the lower induction electrode, electric charges can be induced on the surfaces of the fog drops, so that the fog drops are electrified. The charged droplets have adsorption characteristics to the target object, and a better droplet deposition coverage effect can be realized.
Further, as shown in fig. 3 and 4, the electrostatic induction component 1 includes an electrode mounting base 6, a first sector induction electrode 7, and a second sector induction electrode 8; the first fan-shaped induction electrode 7 and the second fan-shaped induction electrode 8 are arranged at the top and the bottom of the electrode seat 6 in a distributed manner; the first fan-shaped induction electrode 7 and the second fan-shaped induction electrode 8 have the same structure and are arranged in an up-and-down symmetrical mode relative to the electrode mounting base 6; when the device is used, the first fan-shaped induction electrode 7 and the second fan-shaped induction electrode 8 are connected with the outside and are respectively connected with the anode and the cathode of a high-voltage power supply, so that a high-voltage electric field is formed between the first fan-shaped induction electrode 7 and the second fan-shaped induction electrode 8, and when fog drops from a nozzle flow through the area, electric charges can be induced on the surface of the fog drops, so that the fog drops are electrified. Furthermore, a groove for realizing the matching of the electrostatic induction component 1 and the nozzle cap 3 is arranged on the inner wall of the electrode mounting seat 6.
Further, the structure of the nozzle body 5 is as shown in fig. 5 and 6, and comprises a body, a cavity is arranged inside the body, a nozzle core mounting positioning hole 19 is arranged at the upper section of the nozzle body 5, a cavity is arranged inside the nozzle body and used for mounting the nozzle core 4, an air inlet connector 9 is arranged on the side surface of the body, and a liquid inlet connector 10 is arranged at the bottom end of the body; and the air inlet connector 9 is communicated with the mixing cavity, and high-pressure gas is introduced into the mixing cavity through the air inlet connector 9.
Further, the structure of the nozzle core 4 is as shown in fig. 7 and 8, and comprises three parts which are integrally formed; along the liquid inlet direction, the first part is a cylinder, and a liquid inlet hole 12 is formed in the cylinder; the second part is a rectangular arm, and the rectangular arm is provided with an arc-shaped through hole, so that the liquid can impact the arc wall surface of the arc-shaped through hole after being ejected from the liquid inlet hole to realize primary atomization of the liquid; the third part is a cylinder and is used for being connected with the spray head body.
Further, an O-ring 11 is disposed on the outer ring of the cylinder of the first portion, and the O-ring 11 is used to seal the gap between the nozzle core 4 and the nozzle body 5. The inner ring of the cylinder of the first part is provided with a liquid inlet hole 12, the liquid inlet hole 12 consists of three sections along the liquid inlet direction, the front section is a large cylindrical hole, the middle section is a conical hole with gradually reduced radius, the rear section is a cylindrical hole, the conical hole of the middle section can reduce liquid inlet resistance, and the cylindrical hole of the rear section can realize different spray flow rates by designing different apertures.
Furthermore, the arc-shaped through hole is formed in the rectangular arm, so that an arc-shaped wall surface 20 is formed at a position away from the liquid outlet end of the liquid inlet hole 12, and liquid can impact the arc-shaped wall surface 20 after being ejected from the cylindrical hole, so that primary atomization of the liquid is realized. Liquid enters the seal cavity of the spray head core 4 and the spray head body 5 from the liquid inlet hole 12, the liquid can impact the arc wall surface above the liquid inlet hole 12 to realize atomization of the liquid, meanwhile, pressure gas entering from the gas inlet hole 9 can realize further atomization of the liquid, uniform mixing of gas and liquid is realized, and pressure gas flow carries mist flow to be sprayed out through the spray nozzle. Meanwhile, the spray head core 4 with the liquid inlet holes 12 with different apertures can be designed and replaced to realize different spray flow rates of the spray head.
As shown in fig. 11 and 12, for the structural schematic view of the nozzle cap 3, the outer ring of the nozzle cap 3 is provided with a positioning protrusion 15, the positioning protrusion 15 is matched with a positioning groove formed in the inner side wall of the electrode mounting seat to realize the positioning and connection between the nozzle cap 3 and the electrode mounting seat, the inner ring of the upper portion of the nozzle cap 3 is provided with a nozzle mounting positioning hole 16, and the inner ring of the lower portion of the nozzle cap 3 is provided with a nozzle body mounting hole 17.
The working principle and the using method of the device are as follows:
liquid and gas with pressure respectively enter from a liquid inlet connector and a gas inlet connector on the sprayer body, the liquid enters into a cavity of the sprayer core and the sprayer body through a liquid inlet hole, the liquid and the gas are mixed in the cavity and atomized, a fog droplet flow is sprayed out through a nozzle under the carrying of air flow, and when the fog droplets discharged from the nozzle flow through a high-voltage electric field between an upper induction electrode and a lower induction electrode, electric charges can be induced on the surface of the fog droplets, so that the fog droplets are electrified. The charged droplets have adsorption characteristics to the target object, and a good droplet deposition coverage effect is realized.
Finally, it is also noted that relational terms such as first and second, and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A gas-liquid two-phase high-voltage electrostatic sprayer is characterized by comprising an electrostatic induction component, a nozzle, a sprayer cap, a sprayer core and a sprayer body; the side surface of the spray head body is provided with an air inlet pipe, a spray head core is arranged in the spray head body, the upper section and the lower section of the spray head core are respectively matched with the inner wall of the spray head body, the middle section and the spray head body form a mixing cavity, and the mixing cavity is communicated with the air inlet pipe; along the liquid inlet direction, the tail part of the spray head body is connected with one end of a spray head cap, the other end of the spray head cap is connected with a nozzle, and the nozzle is communicated with the mixing cavity; the static induction component is arranged on the outer ring of the nozzle cap, and liquid drops sprayed out of the nozzle are positioned in a high-voltage electric field formed by the static induction component.
2. The gas-liquid two-phase high-voltage electrostatic sprayer according to claim 1, wherein a liquid inlet hole is formed in the lower section of the sprayer core, an arc wall is formed in the middle section of the sprayer core, and liquid sprayed from the liquid inlet hole collides with the arc wall to realize primary atomization of the liquid.
3. The gas-liquid two-phase high-pressure electrostatic sprayer according to claim 2, wherein the liquid inlet hole comprises two sections, a front section is a tapered hole with a gradually decreasing radius, and a rear section is a cylindrical hole along the liquid inlet direction.
4. The gas-liquid two-phase high-voltage electrostatic sprayer according to claim 2, wherein the middle section is a rectangular arm, an arc hole is formed in the rectangular arm, and the inner wall of the arc hole forms the arc wall.
5. The gas-liquid two-phase high-voltage electrostatic sprayer according to claim 1, wherein the lower section is a cylinder, and a sealing ring is disposed on an outer ring of the cylinder, and seals a gap between the sprayer core and the sprayer body.
6. The gas-liquid two-phase high-voltage electrostatic sprayer according to claim 1, wherein the upper section is a cylinder, and a through hole communicated with the mixing chamber is formed inside the cylinder.
7. The gas-liquid two-phase high-voltage electrostatic sprayer according to claim 1, wherein the electrostatic induction component comprises an electrode mounting base, a first sector induction electrode, a second sector induction electrode; the first fan-shaped induction electrode and the second fan-shaped induction electrode are respectively arranged at the upper end and the lower end of the electrode seat, and the first fan-shaped induction electrode and the second fan-shaped induction electrode are connected with the positive electrode and the negative electrode of the high-voltage power supply to form a high-voltage electric field.
8. The gas-liquid two-phase high-voltage electrostatic sprayer according to claim 1, wherein a positioning groove is formed on an inner side wall of the electrode mounting seat, and a positioning protrusion engaged with the positioning groove is formed on an outer side wall of the sprayer cap.
9. A spraying device, characterized by comprising the gas-liquid two-phase high-voltage electrostatic sprayer according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110545728.2A CN113414020A (en) | 2021-05-19 | 2021-05-19 | Gas-liquid two-phase high-voltage electrostatic spray head and spray device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110545728.2A CN113414020A (en) | 2021-05-19 | 2021-05-19 | Gas-liquid two-phase high-voltage electrostatic spray head and spray device |
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| Publication Number | Publication Date |
|---|---|
| CN113414020A true CN113414020A (en) | 2021-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110545728.2A Pending CN113414020A (en) | 2021-05-19 | 2021-05-19 | Gas-liquid two-phase high-voltage electrostatic spray head and spray device |
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| CN (1) | CN113414020A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5732885A (en) * | 1994-10-07 | 1998-03-31 | Spraying Systems Co. | Internal mix air atomizing spray nozzle |
| EP1100623A1 (en) * | 1998-08-04 | 2001-05-23 | Progressive Grower Technologies, Inc. | Electrostatic spray module |
| CN1558106A (en) * | 2004-01-16 | 2004-12-29 | 大连理工大学 | Collision spray vortex chamber of internal combustion engine |
| CN1652876A (en) * | 2002-05-07 | 2005-08-10 | 喷洒系统公司 | Internal mix air atomizing spray nozzle assembly |
| CN103769319A (en) * | 2014-02-26 | 2014-05-07 | 农业部南京农业机械化研究所 | Copy electrode static sprayer |
| CN104399613A (en) * | 2014-11-24 | 2015-03-11 | 江苏大学 | Air-assisted type sector-shaped electrostatic nozzle |
| CN104588227A (en) * | 2015-03-04 | 2015-05-06 | 南京林业大学 | Fan-shaped atomizing electrostatic spray head |
| CN205008132U (en) * | 2015-07-08 | 2016-02-03 | 石河子开发区汇智元科技有限责任公司 | Fan -shaped static shower nozzle |
| CN206838340U (en) * | 2017-05-27 | 2018-01-05 | 广东聚翔通用航空有限责任公司 | A kind of electrostatic nozzle for aviation structure |
| CN108435450A (en) * | 2018-06-19 | 2018-08-24 | 农业部南京农业机械化研究所 | A kind of pneumatic atomization static nozzle and spraying system |
| CN108499763A (en) * | 2018-06-12 | 2018-09-07 | 静快省（苏州）智能科技有限公司 | Static nozzle |
| CN110237691A (en) * | 2019-07-01 | 2019-09-17 | 彭馨 | Two phase flow semidry method deacidifying flue gas device |
| CN210906599U (en) * | 2019-09-03 | 2020-07-03 | 山东华盛农业药械有限责任公司 | Boom sprayer and fan-shaped spraying electrostatic nozzle |
-
2021
- 2021-05-19 CN CN202110545728.2A patent/CN113414020A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5732885A (en) * | 1994-10-07 | 1998-03-31 | Spraying Systems Co. | Internal mix air atomizing spray nozzle |
| EP1100623A1 (en) * | 1998-08-04 | 2001-05-23 | Progressive Grower Technologies, Inc. | Electrostatic spray module |
| CN1652876A (en) * | 2002-05-07 | 2005-08-10 | 喷洒系统公司 | Internal mix air atomizing spray nozzle assembly |
| CN1558106A (en) * | 2004-01-16 | 2004-12-29 | 大连理工大学 | Collision spray vortex chamber of internal combustion engine |
| CN103769319A (en) * | 2014-02-26 | 2014-05-07 | 农业部南京农业机械化研究所 | Copy electrode static sprayer |
| CN104399613A (en) * | 2014-11-24 | 2015-03-11 | 江苏大学 | Air-assisted type sector-shaped electrostatic nozzle |
| CN104588227A (en) * | 2015-03-04 | 2015-05-06 | 南京林业大学 | Fan-shaped atomizing electrostatic spray head |
| CN205008132U (en) * | 2015-07-08 | 2016-02-03 | 石河子开发区汇智元科技有限责任公司 | Fan -shaped static shower nozzle |
| CN206838340U (en) * | 2017-05-27 | 2018-01-05 | 广东聚翔通用航空有限责任公司 | A kind of electrostatic nozzle for aviation structure |
| CN108499763A (en) * | 2018-06-12 | 2018-09-07 | 静快省（苏州）智能科技有限公司 | Static nozzle |
| CN108435450A (en) * | 2018-06-19 | 2018-08-24 | 农业部南京农业机械化研究所 | A kind of pneumatic atomization static nozzle and spraying system |
| CN110237691A (en) * | 2019-07-01 | 2019-09-17 | 彭馨 | Two phase flow semidry method deacidifying flue gas device |
| CN210906599U (en) * | 2019-09-03 | 2020-07-03 | 山东华盛农业药械有限责任公司 | Boom sprayer and fan-shaped spraying electrostatic nozzle |
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