481results about "Spray discharge apparatus" patented technology

The invention provides particles, compositions including the particles, and methods of making the particles using electrospray. In certain embodiments, the particles allow for high concentrations of a therapeutic or diagnostic agent to be delivered at low viscosity. Particles may also exhibit beneficial properties with respect to stability.

A mounting configuration for an electrostatic spray gun (100) includes a probe having a first non-conductive body encasing a first conductive element and a probe mount extending from the electrostatic spray gun with a second non-conductive body encasing a second conductive element. The mounting configuration includes a first elastomeric ring (140) disposed about the second non-conductive body and configured to interface with the first non-conductive body. The first elastomeric ring (140) is configured to exert a force on the first non-conductive body to bias the first non-conductive body away from the electrostatic spray gun (100) such that the probe is secured in a home position. A pin (128) extending from one of the first non-conductive body and the second non-conductive body is seated in a notch (138) formed in the other one of the first non-conductive body and the second non-conductive body.

The invention relates to an electrostatic spray device and discloses a handheld electrostatic sprayer, comprising a handheld shell, a liquid storage unit, a micro-diaphragm pump, a spray module, a high-voltage module and a power module. The liquid storage unit is connected to the handheld shell, the micro-diaphragm pump, the spray module, the high-voltage module and the power module are arranged in the handheld shell, the water inlet interface of the micro-diaphragm pump is connected to the liquid storage unit, and the water outlet interface is connected to the spray module. A charged electrode is arranged in the spray module, the charged electrode is connected to the high-voltage module, the micro-diaphragm pump and the high-voltage module are both connected to the power module, and the high-voltage module can control the output of the high-voltage module according to the position state of the micro-diaphragm pump, so as to output a high-voltage electric field when the water inlet interface and the water outlet interface are in a disconnected state, and prevent the high voltage from being transmitted to the liquid storage unit and the handheld part to cause electric shock risk while charging the spray droplets.

The disclosure relates to a cleaning device for cleaning an electrode assembly having a plurality of finger-shaped external electrodes for electrostatic external charging on an atomizer, in particular on a rotary atomizer. The cleaning device has a first cleaning chamber with an insertion opening for receiving one of the finger-shaped external electrodes of the electrode assembly during a cleaning process. The disclosure provides at least a second cleaning chamber having an insertion opening for receiving one of the finger-shaped external electrodes of the electrode assembly during the cleaning process, so that at least two of the finger-shaped external electrodes of the electrode assembly can be cleaned simultaneously during the cleaning process. Furthermore, the disclosure comprises a corresponding operating method for such a cleaning device.

The invention discloses a water ion generation method and device based on atomization and discharge plasmas, and is characterized in that the method adopts a method of synergistic effect of atomized liquid drops and discharge plasmas, water ion particles are efficiently generated through the synergistic effect of the atomized liquid drops and the discharge plasmas, and the method specifically comprises the treatment steps of atomization, discharge and the like. The water ion generation device comprises an atomization module, a discharge module, a barrier layer electrode group and a control module. Compared with the prior art, water ion particles are efficiently generated through the synergistic effect of atomized liquid drops and discharge plasma, so that water ions and the technology thereof can be widely applied to the fields of air purification, beauty and hairdressing, sterilization and disinfection and the like, and good application prospects and commercial development values are achieved.

The invention relates to a counter-ion adsorption high-voltage electrostatic spraying device and application thereof to preparation of a food sugar coating, and belongs to the technical field of equipment machinery and food processing. The device comprises a material conveying system, a high-voltage electrostatic spraying system, a sugar liquid supply system, a gas supply system, a sugar liquid recovery system, a microwave vacuum drying system and a control cabinet, the sugar liquid supply system and the gas supply system are both connected with the high-voltage electrostatic spraying system, the material conveying system is arranged below the high-voltage electrostatic spraying system, the material conveying system is connected with the microwave vacuum drying system, and the sugar liquid recovery system is further arranged below the material conveying system; the above systems are all controlled by a control cabinet. Through pulse switching of a high-voltage electrostatic field and a sugar liquid material, counter-ion charge accumulation of sprayed sugar liquid is realized, namely, positive charge sugar liquid (chitosan and the like) and negative charge sugar liquid (Arabic gum, carrageenan and the like) are alternately sprayed under the high-voltage electrostatic field, so that electrostatic adsorption and directional deposition of the sugar liquid on the surface of food are realized.

The invention relates to an electrostatic powder sprayer which comprises a gun body, a high-voltage module, an air duct assembly, a scattering head and an electrode needle. The air duct assembly comprises a spray pipe, the spray pipe is provided with a first channel and a positioning column coaxial with the first channel, the end, facing the scattering head, of the positioning column is provided with a step and a first through hole, the outer surface of the spray pipe is provided with a first groove, the first through hole is communicated with the first groove, and the scattering head detachably sleeves the step through a second through hole. The electrode needle penetrates through the first through hole and the second through hole, and the two ends of the electrode needle penetrate out of the second through hole and the first groove respectively. The electrostatic powder sprayer has the following advantages that only the scattering head can be disassembled and assembled, and the replacement difficulty is small; the scattering head is sleeved on the step, the precise mounting position of the scattering head can be ensured due to the limitation of the step, and the electrode needle only needs to penetrate through the second through hole section again; through the design of the first groove, the state of the electrode needle can be observed after the electrode needle penetrates out of the first through hole, and penetrating of the electrode needle is facilitated.

The present invention relates to an electrostatic spray device comprising: a water tank unit having one open side and accommodating a liquid base solution; an electrode unit, which applies power to the base solution so as to generate a potential difference for droplet formation of the base solution; and a nozzle unit which is provided inside the water tank unit and which discharges the base solution in the droplet form by means of the potential difference, wherein the nozzle unit has a lower portion immersed in the base solution, and thus can autonomously absorb the base solution. Therefore, the present invention can spray micro-droplets by means of electrostatic spraying.

The invention discloses a jet form and satellite droplet behavior size control device and method. A nozzle of a liquid drop generator of the device generates jet flows in different forms, and main liquid drops and satellite liquid drops in the jet flows are different in motion state; the liquid drop control assembly is located under the liquid drop generator and used for adjusting the form of jet flow and controlling the behavior size of satellite liquid drops. And the liquid drop image acquisition assembly is positioned on the side of the liquid drop control assembly and is used for dynamically acquiring the form of the jet flow and the behavior size of the satellite liquid drop. The jet flow form and the generation process of the satellite liquid drops can be accurately controlled, stable separation and size adjustment of the satellite liquid drops are achieved, jet flow and liquid drop behaviors can be monitored in real time, it is ensured that the satellite liquid drops and main liquid drops are kept relatively stable before being separated from the main liquid drops, the sizes of the liquid drops can be secondarily regulated and controlled, and the stability of the liquid drops is improved. And a micron-sized electrode is used for accurately intervening in a jet local area, a breakthrough of smaller satellite droplet size is formed, and the method can be widely applied to high-precision droplet control requirements.

To effectively remove suspended dust generated by blasting at a tunnel face.SOLUTION: The present invention is a method for removing suspended dust after blasting of a tunnel face by spraying charged water particles into a tunnel. After blasting, a dust diffusion prevention mode is performed in which the charged water particles are sprayed in the radial direction of the tunnel while moving toward a face S with the airflow from an air duct 1 stopped, and then a dust removal mode is performed in which the charged water particles are sprayed forward while moving toward the face S by starting the airflow from the air duct 1. The charged water particles are sprayed while moving a vehicle 3 equipped with a charged water particle spraying device 2 capable of switching the spray direction of the charged water particles, or the charged water particles are sprayed while making the charged water particle spraying device 2 capable of switching the spray direction of the charged water particles travel along a rail 21 extending in the tunnel axial direction.SELECTED DRAWING: Figure 1

A spray device includes: a housing having a discharge opening; an electrode positioned near the discharge opening; an electrostatic generator coupled to the electrode; a compartment for receiving a pressurized canister of a chemical product having a valve movable between a closed position and an open position, the compartment configured to position the valve in fluid communication with the discharge opening; an actuator configured to move the valve between the open and closed positions; and an electronic controller programmed to: power the electrostatic generator; and operate the actuator to open the valve.

The invention relates to the technical field of electrostatic spraying, and discloses airflow-assisted electrostatic spraying equipment, a preparation method and application, the airflow-assisted electrostatic spraying equipment comprises a material assembly used for conveying a liquid material, a coaxial needle and a triaxial displacement mechanism capable of moving in three axial directions, the material assembly is connected to an outer needle of the coaxial needle, and the airflow-assisted electrostatic spraying equipment further comprises an air source assembly, the gas source assembly is used for conveying pressure-adjustable high-pressure gas to the inner needle of the coaxial needle; a shell of the coaxial needle is connected to an electrostatic generator, and the coaxial needle is fixedly connected with a sliding block of the three-axis displacement mechanism through a needle head fixing support. Compared with electrostatic spraying without airflow assistance, the air source assembly is adopted for conveying high-pressure air, efficient and rapid spraying can be achieved, and the device is suitable for fine spraying of low-viscosity liquid and heterogeneous liquid; compared with static-free mechanical spraying, the sphericity degree of the obtained microspheres is obviously improved, the particle size is smaller and more uniform, and the fog pollution in the spraying process is reduced in a large area.

A nozzle assembly for a painting system including an outer wall, an inner wall and a pair of electrodes. The inner wall defines a paint passage through which paint is dispensed. The inner wall is spaced from the outer wall to define a fluid passage between an outer surface of the inner wall and an inner surface of the outer wall. The pair of electrodes extend circumferentially around an outer surface of the inner wall. The pair of electrodes are configured to be electrically connected to a power source. The fluid passage is configured to receive a fluid. Upon supplying power to the pair of electrodes, water droplets are separated from the fluid in the fluid passage and pass through the inner wall to coat an inner surface of the inner wall to facilitate movement of the paint through the paint passage.

An electrostatic coating system including of a novel technique of height adjustment through pressure sensing and feedback mechanism in twin-phase air-assisted and forced-liquid flow based electrostatic nozzle(s). A variable height electrostatic edible coating system provides uniform and efficient coating to ensure shelf-life extension, improved nutritional value and enhanced sensory attribute.

An electrostatic atomizer electrostatically atomizes a fluid into a charged spray, wherein the charged spray includes a plurality of charged droplets. The electrostatic atomizer includes a chamber forming an inlet and an exit aperture, wherein the chamber is configured for fluid to flow into the chamber from the inlet and to flow out of the chamber from the aperture. An emitter electrode is in liquid contact with the fluid in the chamber and injects an electrical charge into the fluid in the chamber. An impedance circuit is coupled to the chamber and configured to obtain a voltage difference between the emitter electrode and the exit aperture, wherein the voltage difference is at least a minimum voltage threshold.

A disposable fluid delivery system for an electrostatic applicator. The system includes a nozzle cap including a distal end including a delivery outlet and an open proximal end. A nozzle housing can be included with a proximal inlet end and an open distal end connected to the open proximal end of the nozzle cap. A conductive insert is at least partially positioned between the open distal end and the proximal inlet end and includes a portion of a flow pathway formed at least partially between the nozzle cap, the nozzle housing, and the conductive insert. A high voltage connector is extended at least partially through the nozzle housing and electrically connected to the conductive insert and configured to be in electrical communication with a high voltage module and electrostatically charge fluid contents within the flow pathway.

A coating apparatus can include a spray applicator configured to discharge a coating material toward a surface of a workpiece, wherein the spray applicator includes an air shaping orifice, and wherein the spray applicator is configured to generate an electric field between the spray applicator and the workpiece, and a positioning system configured to adjust a position of the spray applicator relative to the surface of the workpiece. It can further include a control system configured to regulate operation of the spray applicator and / or the positioning system to: maintain the spray applicator within a coating distance, maintain a flow rate of shaping air through the air shaping orifice, and maintain an electrical potential of the electric field.

This invention provides an electrostatic generation device for an atomizer. It solves the problem of poor spraying effect of the atomizer. When this utility model is used, the fan blows air through the water outlet pipe, and part of the airflow passes through the pressure tube into the water tank, continuously increasing the air pressure inside the water tank. The greater pressure forces the liquid inside the water tank into the inlet pipe and along the inlet pipe into the guide tube, spraying out from the guide tube in the direction away from the fan through the water outlet pipe. The liquid is electrified by the charged metal valve core, and the electrostatically charged liquid is sprayed out through the air outlet, forming electrostatically charged atomized particles. The spray can easily adhere to the object being sprayed, resulting in a higher spraying efficiency.

Described are an apparatus for generating and collecting nanospray reactive droplets and a method for analyzing a protein digestion. The apparatus includes a capillary, counter electrode, collection vessel, electrostatic lenses, and voltage control module. The capillary receives a mixture that includes a protein and an enzyme and has an outlet disposed in the aperture to dispense the mixture. The collection vessel has a concave surface to receive a nanospray plume emitted from the capillary outlet. The counter electrode and electrostatic lenses are disposed along a nanospray path defined between the capillary outlet and the collection vessel. Each electrostatic lens is formed of an electrically conductive plate having an aperture therein to pass a nanospray reactive plume. The voltage control module is in electrical communication with and is configured to independently control the voltage of the capillary, the counter electrode, the collection vessel and each of the electrostatic lenses.

Methods, systems, devices, and apparatus for dispensing a predetermined amount of fluid to a surface of an eye. A dispensing system includes one or more vial assemblies, each vial assembly including a vial housing and a cup-shaped member coupled to the vial housing to form a hermetically sealed fluid compartment within the vial housing for holding a fluid. The one or more vial assemblies also include a dispensing mechanism coupled to the cup member and configured to dispense a predetermined amount of fluid. The dispensing system also includes a reusable electrically powered dispensing actuator configured to be removably coupled to a vial assembly of the one or more vial assemblies by sliding into the cup member and activate the dispensing mechanism to draw fluid from the hermetically sealed fluid compartment and dispense fluid through the dispensing tip.

The present invention discloses an electrostatic rotary cup spray gun. The atomizer base assembly, the electrostatic high-voltage generator assembly, and the atomizing rotary air flow control unit have a self-cleaning function for cleaning the rotary cup assembly and the structure that realizes the paint conveying function, thereby ensuring that the color-changing paint switching and the process cleaning are free of impurities; in addition, the shaping air ring assembly, the atomizer base assembly, the electrostatic high-voltage generator assembly, and the atomizing rotary air flow control unit have the function of quantitatively adjusting the cyclone angle and range of the shaping air, thereby achieving the effect of accurately adjusting the spray width of the paint atomized particles; finally, the characteristics of cleaning the inner and outer surfaces of the rotary cup and the paint delivery pipe, accurately switching the paint supply, cleaning the color-changing paint and the process without impurities, and the closed-loop control of the rotary cup rotation speed and the atomizing shaping air intake volume can be precisely regulated.

Self-limiting electrospray compositions including a non-charge-dissipative component and / or a charge-dissipative component. Self-limiting electrospray composition including a plurality of charge-dissipative components and excluding a non-charge-dissipative component. Methods for forming layers of self-limiting thickness. Methods for determining a conductivity of a material. Methods for repairing a flaw in a layer on a surface of an object.

This invention discloses a gas-assisted coaxial electrostatic spraying device and a method for preparing aluminum-based energetic composite materials. The device includes a gas-liquid flow transport unit, an electrostatic generator, and a receiving plate. The gas-liquid flow transport unit includes an outer tube and an inner tube coaxially fitted together, forming an airflow cavity between the outer and inner tubes. The inner tube includes a liquid-passing pipe and a nozzle coaxially connected together, with a liquid spraying port at the front end of the nozzle. The airflow cavity is closed at the rear end and has an air outlet at the front end corresponding to the liquid spraying port. An air inlet is provided on the side wall of the outer tube, which is connected to a gas transport device via a pipe. The gas transport device is used to deliver gas into the airflow cavity. The electrostatic generator acts on the nozzle to enable the droplets sprayed by the nozzle to carry a charge, and the droplets can form powder at the receiving plate. This invention achieves the preparation of energetic composite materials based on large-size aluminum matrix through gas-phase assistance, improving the preparation efficiency of energetic composite materials; and improves the ability to control the particle size of the product by controlling the airflow field.

A gun body for an electric spray gun with an amplitude adjustment structure positioned on top, comprising a gun body, a material container, a nozzle assembly, and a material needle. The gun body includes a first channel, a second channel, a third channel, and a coating channel, with an amplitude adjustment assembly installed on the gun body. The nozzle assembly has a primary atomization channel and a secondary atomization channel. The primary atomization channel, and the interior of the material container, while the third channel is connected to the coating channel. The amplitude adjustment assembly controls the communication between the first and second channels and adjusts the gap size between them. The gun body not only allows switching between circular and elliptical spray patterns but also controls the gap size between the first and third channels during the rotation of the amplitude adjustment knob.

The invention discloses a pneumatic high-speed rotating cup type electrostatic spraying nozzle which comprises a base, a rotating shaft, a nozzle body, a shell, a former, a connector, a liquid distribution disc, a rotating cup, a first fastener, a second fastener, a third fastener and a bearing. By the adoption of the technical scheme, the sprayed liquid spray material has the advantages of being corrosive, large in single-time coating coverage area, free of a liquid storage closed-loop circulation area inside, convenient to replace the spray head, sufficient in coating atomization and high in utilization rate.

To provide an electrostatic coating device and an electrostatic coating method capable of expanding the adjustment width of a discharge amount of liquid and more accurately controlling a discharge mode of the liquid.SOLUTION: An electrostatic coating device 1 comprises: a syringe 10 having a storage space 11 and a nozzle 12; an opposing electrode 41 that is disposed to face the syringe 10; a voltage generator 42 that applies a voltage between the syringe 10 and the opposing electrode 41; a pressure generator 22 that applies pressure to the storage space 11; a measuring device 50 that measures a property of liquid 2 in the storage space 11; and a control device 30. The control device 30 synchronously varies a voltage applied by the voltage generator 42 and a pressure applied by the pressure generator 22 to discharge the liquid 2 from the nozzle 12, and changes the voltage value and the pressure value on the basis of a measurement value obtained by the measuring device 50.SELECTED DRAWING: Figure 2

The invention relates to an arrester device (8) for dissipating a high-voltage potential from a rotor (2), in particular from an atomizer shaft (2) of a rotary atomizer (1) with electrostatic charging of the coating. The arrester device according to the invention comprises an arrester ring (9), which annularly surrounds the rotor (2), and at least one electrically conductive contact element (10), which is arranged on the arrester ring (9) and touches the rotor (2), in order to dissipate the high-voltage potential from the rotor (2). The invention makes provision for the arrester ring (9) together with the at least one contact element (10) to be formed in one piece as an integral component (8).

The powder supply mechanism for the electrostatic powder spray gun comprises a powder barrel and a flow dividing piece, and the powder barrel is detachably connected to a shell of the electrostatic powder spray gun; the flow dividing piece is configured to communicate the powder barrel with the nozzle and is used for fluidizing powder in the powder barrel; the flow dividing piece comprises an air inlet pipe located in the powder barrel, the air inlet end of the air inlet pipe communicates with the fan assembly, and at least two air outlets are formed in the air outlet end of the air inlet pipe. According to the powder supply mechanism for the electrostatic powder spray gun, at least two air outlets are formed in the air outlet end of the air inlet pipe, and the air flowing out of the air inlet pipe is shunted through the two air outlets, so that the blowing direction and the blowing range of the air to powder in the powder barrel are increased, the flowability of the powder in the powder barrel is enhanced, and the fluidization property of the powder is enhanced; and the caking probability is reduced, so that the powder can uniformly flow into the nozzle, powder particles are more easily charged by an electrostatic field, and the electrostatic spraying efficiency and the adsorption effect are improved.

An applicator for electrostatic deposition of dry powder on a grounded continuous moving electrically conductive web is provided that includes a powder feeding system, at least one powder dispenser, an electrostatic deposition chamber, and at least one wire electrode in the electrostatic deposition chamber. An opening of a powder dispenser outlet is arranged along the latitude of the electrically conductive web, and the ratio of the width of the outlet opening and the coating width of the web is in the range of 0.25-1.0. The powder dispenser has a defined angle relative to the web and a vertical distance between the powder dispenser outlet and the web. The first wire electrode generates a corona discharge zone with a radius and have a vertical distance between the web.

A portable, hand-held electrospinning or electrospraying apparatus and system, method, and portions thereof, comprised of a durable portion of the hand-held apparatus and a consumable portion of the hand-held apparatus. The consumable portion of the hand-held apparatus, which may contain the solution to be output in electrospin or electrospray fashion, may be replaced in whole or in part to provide additional or alternative solution. A base station may be provided, and can output high voltage and communication signals to the hand-held apparatus to enable the electrospin or electrospray operation by the hand-held apparatus.