WO2021012778A1 - 一种感应静电雾化喷头 - Google Patents

一种感应静电雾化喷头 Download PDF

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Publication number
WO2021012778A1
WO2021012778A1 PCT/CN2020/092487 CN2020092487W WO2021012778A1 WO 2021012778 A1 WO2021012778 A1 WO 2021012778A1 CN 2020092487 W CN2020092487 W CN 2020092487W WO 2021012778 A1 WO2021012778 A1 WO 2021012778A1
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WIPO (PCT)
Prior art keywords
nozzle
flow channel
ring
electrostatic atomization
liquid flow
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PCT/CN2020/092487
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English (en)
French (fr)
Inventor
欧鸣雄
贾卫东
杨学军
董祥
Original Assignee
江苏大学
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Application filed by 江苏大学 filed Critical 江苏大学
Priority to GB2105650.2A priority Critical patent/GB2591955B/en
Priority to US17/289,715 priority patent/US11278917B2/en
Publication of WO2021012778A1 publication Critical patent/WO2021012778A1/zh

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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
    • B05B5/043—Discharge apparatus, e.g. electrostatic spray guns using induction-charging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/06—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in annular, tubular or hollow conical form
    • 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
    • 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
    • B05B5/0533—Electrodes specially adapted therefor; Arrangements of electrodes
    • 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
    • B05B7/0807—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 to form intersecting jets
    • B05B7/0815—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 to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter

Definitions

  • the invention relates to a spray head, in particular to an induction electrostatic atomization spray head.
  • Electrostatic atomization is an advanced atomization technology widely used in agricultural plant protection spray application, industrial spray combustion and drying, etc., especially in the field of agricultural plant protection spray application technology, which combines airflow assisted atomization technology with induction electrostatic spray
  • the induction electrostatic atomization nozzle of chemical technology is a plant protection spray component with the characteristics of saving medicine, saving water, high efficiency atomization and anti-drift performance.
  • the spray patterns of the existing pneumatically assisted induction electrostatic atomization nozzles at home and abroad are all solid cones.
  • the high-pressure liquid flows to the outlet end of the nozzle through the central circular hole of the nozzle, and the high-pressure gas flows from the center of the nozzle.
  • the periphery of the circular hole is ejected at high speed to form a jet stream, which enhances the atomization and air delivery effect of the liquid through the jet stream.
  • the high-pressure liquid atomizes and diffuses in the center area of the jet stream, and produces a solid cone mist Drop group.
  • the liquid surface at the outlet end of the nozzle generates a charge with a polarity different from that of the high-voltage electrode device, and generates liquid droplets with a certain charge, which are entrapped by the jet airflow. Under the driving force, the liquid droplets move toward the surface of targets such as crops, and finally adsorb and deposit on the front and back of the leaves of targets such as crops.
  • the existing pneumatically assisted induction electrostatic atomization nozzle has the characteristics of small flow, fine droplets and good leaf surface adsorption, which can effectively improve the adhesion effect of pesticide droplets on the surface of crop leaves, especially the back of the leaves, and effectively kill Kill the pests and diseases on the back of the leaves and improve the pest control effect of pesticides.
  • the spray patterns of the existing pneumatically assisted induction electrostatic atomization nozzle products are mostly solid cones, and the high-pressure liquid flows out through the central circular hole of the nozzle.
  • the cone angle of the fog is very small, generally between 15°-30°. Therefore, it is difficult to meet the requirements of wide-width plant protection spray machinery such as boom sprayers, and most of them are used in single nozzle spraying occasions such as hand-held orchard sprayers.
  • the high-voltage electrode devices (electrode ring or electrode sheet, etc.) of the existing induction electrostatic atomization nozzle are all located in the direction of the outlet end of the nozzle, and they are generally installed at the periphery of the outlet of the center circular hole of the nozzle.
  • the charge of the high-voltage electrode device and the charge of the liquid droplets are different kinds of charges, a part of the liquid droplets sprayed from the nozzle will directly adsorb to the surface of the high-voltage electrode device, and some of the liquid droplets are on the high-voltage electrode device.
  • the purpose of the present invention is to provide an induction electrostatic atomization nozzle.
  • the present invention provides an induction electrostatic atomization spray head, which includes a spray head body having an internal gas flow channel and a liquid flow channel surrounding the internal gas flow channel;
  • An electrode ring is arranged around the liquid flow channel at the entrance of the liquid flow channel.
  • the induction electrostatic atomization spray head further includes a tapered sleeve, the tapered sleeve includes an integrated ring tube and an outer tapered tube, the ring tube is threadedly connected with the side wall of the spray head body; and
  • the bottom of the loop pipe is in communication with the internal gas flow channel.
  • the nozzle body includes a nozzle that is threadedly connected with the main nozzle;
  • the front end of the main nozzle has a protruding head, the protruding head extends into the nozzle and forms an annular slit with the side wall of the nozzle;
  • the liquid flow channel communicates with the annular slit
  • the inner wall of the nozzle has a cone ring portion extending from the protruding head to the ejection outlet of the nozzle.
  • the internal gas flow tool has a buffer chamber, and a divergent tube communicating with the buffer chamber, wherein
  • the ejection port of the diverging tube is located at the free end surface of the extending head.
  • the induction electrostatic atomization nozzle further includes a closed sleeve
  • the bottom of the main spray head at the entrance of the liquid flow channel has a placement cavity, and the electrode ring is placed in the placement cavity;
  • the closing sleeve is screwed to one end of the bottom of the main nozzle and fixes the electrode ring;
  • the sealing sleeve is respectively provided with an electrical connection through hole for electrically connecting with the electrode ring, a liquid through hole communicating with the inlet end of the liquid flow channel, and an inner portion communicating with the inlet end of the internal gas flow channel. Through hole.
  • the main nozzle includes a nozzle intermediate body and a nozzle rear body threadedly connected with the nozzle intermediate body;
  • the protruding head is located at the front of the nozzle intermediate body
  • the bonding surface between the spray head intermediate body and the spray head rear body is provided with a sealing ring arranged around the buffer cavity.
  • the electrode ring includes a metal ring and a contact piece connected with the metal ring;
  • the ratio of the axial length of the metal ring to the inner diameter of the metal ring is 1.5-3.
  • the diffusion angle of the diverging tube is 10°-20°.
  • the difference between the inner diameter and the outer diameter of the annular slit is 0.2 mm to 1 mm.
  • the beneficial effect of the present invention is that the induction electrostatic atomization nozzle of the present invention, by placing the electrode ring behind the inlet end of the liquid flow channel, ensures that the electrode ring is far away from the position of the induction electrostatic atomization nozzle, thereby reducing the induction
  • the intensity of the electric field at the electrostatic atomization nozzle avoids the phenomenon of droplet adsorption to a certain extent.
  • Fig. 1 is a schematic structural view of a preferred embodiment of an induction electrostatic atomization nozzle of the present invention
  • Figure 2 is a schematic structural view of a preferred embodiment of the tapered sleeve of the present invention.
  • Fig. 3 is a schematic structural diagram of a preferred embodiment of the electrode ring of the present invention.
  • Nozzle body 1
  • Main nozzle 104 extending into head 1041, annular slit 1042, nozzle intermediate 1043, nozzle rear body 1044;
  • Nozzle 105 cone ring portion 1051
  • Conical sleeve 2 ring tube 201, outer cone tube 202;
  • an induction electrostatic atomization spray head of the present invention includes a spray head body 1 having an internal gas flow channel 101 and a liquid flow channel 102 surrounding the internal gas flow channel 101;
  • An electrode ring 103 is provided around the liquid flow channel 102 at the entrance of the liquid flow channel 102.
  • the electrode ring 103 is placed at the entrance end of the liquid flow channel 102 to ensure that the electrode ring 103 is away from the position of the induction electrostatic atomization nozzle, thereby reducing the electric field at the induction electrostatic atomization nozzle. Strength, thereby avoiding the phenomenon of droplet adsorption to a certain extent.
  • the inductive electrostatic atomization nozzle further includes a cone-shaped sleeve 2, and the cone-shaped sleeve 2 includes an integral ring A tube 201 and an outer tapered tube 202, the ring tube 201 is threadedly connected with the side wall of the nozzle body 1; and the bottom of the ring tube 201 communicates with the internal gas flow passage 101.
  • the ring tube 201 and the outer tapered tube 202 are provided to cooperate with the internal gas flow channel 101, the atomization and spraying strength is enhanced, and the rear electrode ring 103 is matched to avoid the phenomenon of mist adsorption.
  • the nozzle body 1 includes a main nozzle 104 and a nozzle 105 threadedly connected to the main nozzle 104;
  • the front end of the main nozzle 104 has a protruding head 1041, the protruding head 1041 extends into the nozzle 105 and forms an annular gap 1042 with the side wall of the nozzle 105;
  • the liquid flow channel 102 is in communication with the annular slit 1042;
  • the inner wall of the nozzle 105 has a conical ring portion 1051 extending from the protruding head 1041 to the ejection port of the nozzle 105.
  • the liquid When the liquid is injected from the liquid flow channel 102, it will be ejected under the squeeze of the annular slit 1042.
  • the ejected liquid will be squeezed by the high-pressure gas passing through the internal gas flow channel 101, as well as the annular tube 201 and the outer cone.
  • the external air injected by the tube 202 forms an internal and external pinch to atomize the sprayed liquid and spray it out.
  • the high-pressure gas in the internal gas flow channel 101 cooperates with the external gas of the outer cone 202 to form a pinching attack on the liquid, thereby greatly expanding the cone angle of the fog, ensuring that it can spread and ensure the spraying effect
  • the cone ring portion 1051 is used to guide the droplets and simultaneously guide the high-pressure gas located in the internal gas flow channel 101, thereby gradually changing the direction of the droplet diffusion, and because the side wall of the cone ring portion 1051 is curved, Therefore, the diffusion direction (the diffusion direction is the tangent direction to the cone ring portion 1051) is gradually changing. Therefore, it is also ensured that the diffused droplets can form a pinch with the outside air, and the pinch is inevitable.
  • the effect of the adsorption phenomenon must be weakened.
  • the internal gas flow passage 101 has a buffer cavity 1011 and a divergent tube 1012 communicating with the buffer cavity 1011, wherein
  • the ejection port of the diverging tube 1012 is located at the free end surface of the extending head 1041.
  • the setting of the buffer chamber 1011 when the gas is injected from the internal gas flow channel 101, it will obtain a preliminary buffer effect under the action of the buffer chamber 1011, and then scatter out in the circumferential direction under the action of the divergent tube 1012, and further Ground, part of the gas is then ejected from the extrusion of the outer cone 202, forming an atomized pinch to the liquid.
  • the induction electrostatic atomization nozzle further includes a closed sleeve 3;
  • the bottom of the main spray head 104 at the entrance of the liquid flow channel 102 has a placement cavity, and the electrode ring 103 is placed in the placement cavity;
  • the closing sleeve 3 is threadedly connected to one end of the bottom of the main shower head 104 and fixes the electrode ring 103;
  • the sealing sleeve 3 is respectively provided with an electrical connection through hole for electrical connection with the electrode ring 103, a liquid through hole communicating with the inlet end of the liquid channel 102, and an inlet with the internal gas channel 101.
  • An internal through hole connected to each end. The existence of the closed sleeve 3 is easy to disassemble.
  • the main nozzle 104 includes a nozzle intermediate body 1043 and a nozzle rear body 1044 threadedly connected with the nozzle intermediate body 1043;
  • the protruding head 1041 is located at the front of the nozzle intermediate body 1043;
  • the bonding surface between the spray head intermediate body 1043 and the spray head rear body 1044 has a sealing ring 4 arranged around the buffer cavity 1011.
  • a sealing ring 4 is provided. Ensure its good sealing effect.
  • the electrode ring 103 includes a metal ring 1031 and a contact piece 1032 connected to the metal ring 1031; and the ratio of the axial length of the metal ring 1031 to the inner diameter of the metal ring 1031 is 1.5-3 . If the axial length of the metal ring 1031 is very short, its surface area is relatively small, the surface charge is relatively small, and the resulting remote electric field strength is relatively small. By increasing the axial length, the surface area and surface charge are also increased. Finally, the electric field strength at the far end will increase, but the axial length reaches a certain level, and the value of the far end electric field strength is basically constant. Therefore, the above data is the best.
  • the diffusion angle of the divergent tube 1012 is 10°-20°.
  • the difference between the inner diameter and the outer diameter of the annular slit 1042 is 0.2 mm to 1 mm.
  • the existing nozzle solution is based on the conventional electrostatic induction test. Therefore, in order to ensure that the electrostatic induction phenomenon of the droplets is significant, people will consider placing the electrode ring 103 closer to the liquid at the entrance of the liquid flow channel 102. As a result, the lower voltage generates more electrostatic induction, so the phenomenon of electrostatic adsorption cannot be solved;
  • the electrode ring 103 is placed away from the entrance of the liquid flow channel 102, and the voltage is increased, the adsorption effect is well reduced, and the charge amount of the droplets is ensured.
  • the size of the nozzle is limited, it will greatly increase the cost of the nozzle if it is too large, resulting in its no longer competitive in the market. Therefore, the length of the nozzle is limited, that is, the electrode ring 103 is set far away from the liquid. The effect at the entrance of the flow channel 102 is limited. Therefore, it is necessary to increase the spray intensity of the droplets to further reduce the adsorption phenomenon.

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  • Electrostatic Spraying Apparatus (AREA)

Abstract

一种感应静电雾化喷头，包括喷头本体（1），喷头本体（1）具有内部气体流道（101）、环内部气体流道（101）的液体流道（102）；位于液体流道（102）的入口处环液体流道（102）设置有一电极环（103）。该感应静电雾化喷头通过将电极环后置在液体流道的入口端处，保证电极环远离该感应静电雾化喷头的位置，降低了感应静电雾化喷头处的电场强度，在一定程度上避免了雾滴吸附现象。

Description

一种感应静电雾化喷头 技术领域
本发明涉及喷头，具体涉及一种感应静电雾化喷头。
背景技术
静电雾化是一种广泛应用于农业植保喷雾施药、工业喷雾燃烧和干燥等领域的先进雾化技术，尤其是在农业植保喷雾施药技术领域，结合了气流辅助雾化技术与感应静电雾化技术的感应静电雾化喷头是一种具有省药、省水、高效雾化和防飘移性能的植保喷雾部件。
目前，国内外现有的气力辅助式感应静电雾化喷头产品的喷雾型式均为实心锥形，该喷头在喷雾过程中，高压液体通过喷头中心圆孔流向喷头出口端，高压气体则从喷头中心圆孔的外围高速喷射而出，形成喷射气流，通过喷射气流以增强液体的雾化和风送效果，与此同时，高压液体在喷射气流的中心区域进行雾化和扩散，并产生实心锥形雾滴群。此外，通过在喷头出口端安装高压电极装置所产生的静电感应现象，使喷头出口端的液体表面产生与高压电极装置极性相异的电荷，并产生具有一定电荷的液体雾滴，在喷射气流的裹挟和推动下，液体雾滴朝向农作物等靶标的表面运动，并最终吸附沉积在农作物等靶标的叶片正面和背面。总体而言，现有的气力辅助式感应静电雾化喷头具有流量小、雾滴细和叶片表面吸附性好的特点，能够有效改善农作物叶片表面尤其是叶片背面的农药雾滴附着效果，有效杀灭叶片背面的病虫害，提高农药的病虫害防治效果。
尽管现有的气力辅助式感应静电雾化喷头具有上述优点，但其在以下2个方面还存在问题：
(1)现有的气力辅助式感应静电雾化喷头产品的喷雾型式大多为实心锥形，高压液体是通过喷头中心圆孔流出，雾锥角很小，一般在15度-30度之间，因而其难以满足喷杆喷雾机等宽幅植保喷雾机械的要求，其大多应用于手持式果园喷雾机等单喷头喷雾场合。
(2)现有的感应静电雾化喷头的高压电极装置(电极环或电极片等)均位于喷头出口端方向，其一般安装在喷头中心圆孔的出口外围。在喷洒过程中，由于高压电极装置所带电荷和液体雾滴电荷为异种电荷，从喷头喷洒出来的一部分液体雾滴会直接吸附到高压电极装置表面，还有部分液体雾滴在高压电极装置的电荷引力(外部电场)作用下，从喷头体外部空间绕回后，被吸附在喷头体外表面，这种带电雾滴吸附在高压电极装置表面和喷头体外表面的现象称为雾滴吸附现象，其容易使得静电喷雾系统发生荷电效果不稳定、液体泄露和高压放电等问题，形成电气安全隐患，危害操作者的安全。目前，国内部分专利在电极装置外面设计了专门的绝缘层等包覆结构，用于增强高压电极装置的绝缘效果，但绝缘层等包覆结构对电极的外部电场强度影响非常微小，没有改善以往的雾滴吸附现象。
发明内容
本发明的目的是提供一种感应静电雾化喷头。
本发明提供了一种感应静电雾化喷头，包括喷头本体，所述喷头本体具有内部气体流道、环所述内部气体流道的液体流道；
位于所述液体流道的入口处环所述液体流道设置有一电极环。
作为优选，所述感应静电雾化喷头还包括一锥形套头，所述锥形套头包括一体设置的环管和外锥管，所述环管与所述喷头本体的侧壁螺纹连接；以及
所述环管的底部与所述内部气体流道连通。
作为优选，所述喷头本体包括主喷头与所述主喷头螺纹连接的喷嘴；
所述主喷头的前端具有一伸入头，所述伸入头伸入所述喷嘴并且与所述喷嘴的侧壁形成环形缝；
所述液体流道与所述环形缝连通；以及
所述喷嘴的内壁具有一自所述伸入头至所述喷嘴的喷出口的锥环部。
作为优选，所述内部气体流道具有一缓冲腔，以及与所述缓冲腔连通的渐扩管，其中
所述渐扩管的喷出口位于所述伸入头的自由端面处。
作为优选，所述感应静电雾化喷头还包括封闭套；
位于所述液体流道的入口处的所述主喷头的底部具有一放置腔，所述电极环被放置在所述放置腔内；
所述封闭套螺纹连接在所述主喷头的底部的一端并且固定所述电极环；以及
所述封闭套上分别开设有用于与所述电极环电连接的电连接通孔、与所述液体流道的入口端连通的液体通孔和与所述内部气体流道的入口端连通的内部通孔。
作为优选，所述主喷头包括喷头中间体和与所述喷头中间体螺纹连接的喷头后体；
所述伸入头位于所述喷头中间体的前部；
所述喷头中间体和所述喷头后体之间的贴合面上具有环所述缓冲腔设置的密封圈。
作为优选，所述电极环包括一金属环和与所述金属环联接的接触片；以及
所述金属环的轴向长度与金属环的内径比值为1.5～3。
作为优选，所述渐扩管的扩散角为10°～20°。
作为优选，所述环形缝的内径与外径的差值为0.2mm～1mm。
本发明的有益效果是，本发明的此种感应静电雾化喷头，通过将电极环后置在液体流道的入口端处，保证电极环远离该感应静电雾化喷头的位置，从而降低了感应静电雾化喷头处的电场强度，从而在一定程度上避免了雾滴吸附现象。
附图说明
下面结合附图和实施例对本发明进一步说明。
图1是本发明的一种感应静电雾化喷头的优选实施例的结构示意图；
图2是本发明的锥形套头的优选实施例的结构示意图；
图3是本发明的电极环的优选实施例的结构示意图。
图中：
喷头本体1；
内部气体流道101，缓冲腔1011，渐扩管1012；
液体流道102，电极环103，金属环1031，接触片1032；
主喷头104，伸入头1041，环形缝1042，喷头中间体1043，喷头后体1044；
喷嘴105，锥环部1051；
锥形套头2，环管201，外锥管202；
封闭套3，密封圈4。
具体实施方式
现在结合附图对本发明作进一步详细的说明。这些附图均为简化的示意图，仅以示意方式说明本发明的基本结构，因此其仅显示与本发明有关的构成。
如图1～3所示，本发明的一种感应静电雾化喷头，包括喷头本体1，所述喷头本体1具有内部气体流道101、环所述内部气体流道101的液体流道102；
位于所述液体流道102的入口处环所述液体流道102设置有一电极环103。
此种感应静电雾化喷头，通过将电极环103后置在液体流道102的入口端处，保证电极环103远离该感应静电雾化喷头的位置，从而降低了感应静电雾化喷头处的电场强度，从而在一定程度上避免了雾滴吸附现象。
在本实施例中，为了更进一步的避免雾滴吸附现象的情况，采用了如下技术方案：所述感应静电雾化喷头还包括一锥形套头2，所述锥形套头2包括一体设置的环管201和外锥管202，所述环管201与所述喷头本体1的侧壁螺纹连接；以及所述环管201的底部与所述内部气体流道101连通。
当向内部气体流道101通入高压气体时，一股高压气体从内部气体流道101喷射而出，而另一股高压气体顺着环管201以及外锥管202喷射而出，从而形成两股高压喷射气体，同时，液体流道102内注入高压液体，顺势在喷头本体1中的两股高压喷射气体将其雾化喷射而出。
而当设置环管201和外锥管202配合内部气体流道101，从而使雾化以及喷射的强度增强，从而配合后置的电极环103，很好的避免了雾滴吸附现象。
在本实施例中，所述喷头本体1包括主喷头104与所述主喷头104螺纹连接的喷嘴105；
所述主喷头104的前端具有一伸入头1041，所述伸入头1041伸入所述喷嘴105并且与所述喷嘴105的侧壁形成环形缝1042；
所述液体流道102与所述环形缝1042连通；以及
所述喷嘴105的内壁具有一自所述伸入头1041至所述喷嘴105的喷出口的锥环部1051。
当液体从液体流道102注入以后，顺势会在环形缝1042的挤压下喷射而出，其中，该喷射的液体会受到通过内部气体流道101的高压气体挤压以及环管201和外锥管202注入的外部气体，形成内外夹击将喷射的液体雾化，从而喷射而出。进一步地，内部气体流道101内的高压气体配合外锥管202的外部气体，形成对液体的夹击，从而极大的扩大了雾锥角，保证了其能够更大的扩散开而保证喷洒效果，而锥环部1051，是用于导向雾滴，并且同步导向位于内部气体流道101的高压气体，从而逐渐改变了雾滴的扩散方向，又因为锥环部1051的侧壁是弧面，因此，扩散方向(扩散方向为与锥环部1051的切线方向)是逐步不停的在改变，因此，也保证了该扩散的雾滴能够与外部气体形成夹击，夹击的必然形成，也保证了吸附现象必然被减弱的效果。
在本实施例中，所述内部气体流道101具有一缓冲腔1011，以及与所述缓冲腔1011连通的渐扩管1012，其中
所述渐扩管1012的喷出口位于所述伸入头1041的自由端面处。缓冲腔1011的设置，当气体从内部气体流道101注入后，会在缓冲腔1011的作用下，得到初步的缓冲效果，然后再在渐扩管1012的作用下向周向散射而出，进一步地，部分气体再在外锥管202的挤压喷射而出，形成对液体的雾化夹击。
在本实施例中，所述感应静电雾化喷头还包括封闭套3；
位于所述液体流道102的入口处的所述主喷头104的底部具有一放置腔，所述电极环103被放置在所述放置腔内；
所述封闭套3螺纹连接在所述主喷头104的底部的一端并且固定所述电极环103；以及
所述封闭套3上分别开设有用于与所述电极环103电连接的电连接通孔、与所述液体流道102的入口端连通的液体通孔和与所述内部气体流道101的入口端连通的内部通孔。封闭套3的存在，便于拆卸。
在本实施例中，所述主喷头104包括喷头中间体1043和与所述喷头中间体1043螺纹连接的喷头后体1044；
所述伸入头1041位于所述喷头中间体1043的前部；
所述喷头中间体1043和所述喷头后体1044之间的贴合面上具有环所述缓冲腔1011设置的密封圈4。通过设置喷头中间体1043和喷头后体1044，便于形成可拆卸的形式，便于拆装，而正因为其可拆卸的形式，导致其内部气体流道101容易泄露，因此，设置了密封圈4，保证其良好的密封效果。
在本实施例中，所述电极环103包括一金属环1031和与所述金属环1031联接的接触片1032；以及所述金属环1031的轴向长度与金属环1031的内径比值为1.5～3。如果金属环1031轴向长度非常短，其表面积比较小，表面的荷电量也比较小，形成的远端电场强度也相对较小，通过增大轴向长度，也就增大了表面积和表面电荷，最终在远端的电场强度也会增大，但是轴向长度达到一定程度，远端电场强度的数值也基本保持恒定，因此采取了以上的数据为最佳。
在本实施例中，所述渐扩管1012的扩散角为10°～20°。所述环形缝1042的内径与外径的差值为0.2mm～1mm。
常规的，现有的喷头的方案是根据常规的静电感应试验而来，因此人们为了能够保证液滴的静电感应现象显著，会考虑将电极环103更加的靠近所述液体流道102的入口的液体，从而使更低的电压产生了更多静电感应，因此静电吸附现象始终无法解决；
本申请通过远离所述液体流道102的入口处放置电极环103，并且提高了电 压，很好的降低了吸附效果并且保证了液滴的带电量。
但是因为喷头的大小是有限的，过大会极大的提高喷头的成本，从而导致其不再具有市场竞争力，因此，喷头长短是有限的，也即，单一设置电极环103在远离所述液体流道102的入口处的效果有限，因此，需要增大雾滴的喷射强度，来进一步减弱吸附现象。
以上述依据本发明的理想实施例为启示，通过上述的说明内容，相关工作人员完全可以在不偏离本项发明技术思想的范围内，进行多样的变更以及修改。本项发明的技术性范围并不局限于说明书上的内容，必须要根据权利要求范围来确定其技术性范围。

Claims (4)

  1. 一种感应静电雾化喷头，包括喷头本体，所述喷头本体具有内部气体流道、环所述内部气体流道的液体流道；
    其特征在于：位于所述液体流道的入口处环所述液体流道设置有一电极环；
    所述感应静电雾化喷头还包括一锥形套头，所述锥形套头包括一体设置的环管和外锥管，所述环管与所述喷头本体的侧壁螺纹连接；以及
    所述环管的底部与所述内部气体流道连通；
    所述喷头本体包括主喷头与所述主喷头螺纹连接的喷嘴；
    所述主喷头的前端具有一伸入头，所述伸入头伸入所述喷嘴并且与所述喷嘴的侧壁形成环形缝；
    所述液体流道与所述环形缝连通；以及
    所述喷嘴的内壁具有一自所述伸入头至所述喷嘴的喷出口的锥环部；
    所述内部气体流道具有一缓冲腔，以及与所述缓冲腔连通的渐扩管，其中
    所述渐扩管的喷出口位于所述伸入头的自由端面处；
    所述感应静电雾化喷头还包括封闭套；
    位于所述液体流道的入口处的所述主喷头的底部具有一放置腔，所述电极环被放置在所述放置腔内；
    所述封闭套螺纹连接在所述主喷头的底部的一端并且固定所述电极环；以及
    所述封闭套上分别开设有用于与所述电极环电连接的电连接通孔、与所述液体流道的入口端连通的液体通孔和与所述内部气体流道的入口端连通的内部通孔；
    所述主喷头包括喷头中间体和与所述喷头中间体螺纹连接的喷头后体；
    所述伸入头位于所述喷头中间体的前部；
    所述喷头中间体和所述喷头后体之间的贴合面上具有环所述缓冲腔设置的密封圈。
  2. 如权利要求1所述的感应静电雾化喷头，其特征在于，
    所述电极环包括一金属环和与所述金属环联接的接触片；以及
    所述金属环的轴向长度与金属环的内径比值为1.5～3。
  3. 如权利要求1所述的感应静电雾化喷头，其特征在于，
    所述渐扩管的扩散角为10°～20°。
  4. 如权利要求1所述的感应静电雾化喷头，其特征在于，
    所述环形缝的内径与外径的差值为0.2mm～1mm。
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