Method detonation spraying the surfaces of the parts
(57) Abstract:The way destinationnode sputtering surfaces of the parts, ensuring the quality of the workpiece and the performance is done using blast feeding the powder from the metal in a gaseous state, which ensures the highest quality of the workpiece with improved performance compared to existing similar. 1 C.p. f-crystals, 1 Il. The invention relates to the field of surface treatment of workpieces by means of evaporation.On the literary source known method destinationnode spraying circuit device, where the sprayed powder is fed into the chamber from the top, which does not provide a more uniform flow of the sprayed powder, and also qualitative purging with nitrogen, because he also served in the camera in a perpendicular direction relative to its axis. In addition, the powder supply is made through the pipeline without the presence of metal in a gaseous state, which also reduces the quality of the sprayed layer on the treated surface.The proposed method differs from the existing literature that the supply of powder and nitrogen into the chamber probranom, providing all of these higher quality of the sprayed layer.The drawing shows a diagram of the applied method.This method of spraying a melt of metal, its dispersion and migration to the surface is achieved due to the energy of the explosion of a mixture of acetylene and oxygen.The deposition of the metal in the chamber water cooled target apparatus for spraying served in a ratio of acetylene and oxygen. Then is introduced into the chamber by means of a jet of metal in a gaseous state the sprayed powder with a grain size of 30 to 100 μm, before entry into the chamber of the powder in the pipeline is nitrogen. The gas mixture is ignited by an electric spark. The blast wave tells the particles of powder of high speed flight, which is at a distance of 75 mm from the edge of the trunk reaches 800 m/sAfter application of each dose of powder to the barrel of the apparatus is purged with nitrogen to remove products of combustion. This process is repeated automatically with a frequency of 3...4 times per second per cycle. On the surface of the part is coated with a layer of metal with thickness up to 6 mm.Example. Is destinationa surface treatment part 4, where the camera 2 original filed acetylene through put in gaseous form through the pipe 5) the sprayed powder with a grain size of 30 to 100 μm, and in front of the camera of the powder through the pipeline 8 into the main channel is nitrogen. The gas mixture is ignited by an electric spark, spark 1. The blast reports the resulting mixture 2 high speed, feeding her in the barrel 3 to the processed surface, forming a sprayed layer 9.After application of each dose of powder to the barrel of the apparatus is purged with nitrogen to remove products of combustion.The advantages of this method of deposition are high performance process (with a trunk diameter of 20-25 mm for 15 seconds is applied to a coating thickness of 0.4 mm on the area up to 5 square cm), high adhesion of the coating to the surface of the part, the low temperature of the surface (no more than 200oC).The disadvantages of the process include high noise levels (up to 140 dB), which necessitates the execution of works by coating in a special sound-proof chamber.Literature
"Capital repair of the car", Moscow. "Transport", 1989, Yesenberlin, page 174. 1. Method detonation spraying on the surfaces, in the course of which the supply of powder in the chamber of the barrel of the apparatus for spraying powder on the Rui metal in a gaseous state.2. The method according to p. 1, characterized in that the supply of powder by means of a jet of metal in a gaseous state is performed from the back side in the center of the trunk.
FIELD: apparatus for spraying or atomizing liquids or other fluent materials, particularly in medicine and sanitation for inhalation therapy, room moistening and disinfection.
SUBSTANCE: ultrasound aerosol generator comprises aerosol chamber composed of upper and lower parts and ultrasonic transducer installed in lower chamber part. Ultrasonic transducer is also used as container for working liquid. Piezoelectric ultrasound emitter is sealed in transducer bottom. Air inlet orifice provided with fan is formed in side wall or bottom of lower chamber part. Supplying device used to maintain necessary level in transducer cup is arranged in upper chamber part. Aerosol discharge channel is located above the transducer and arranged coaxial thereto. Aerosol discharge channel is formed as a tube with end located above working liquid level. Generator created aerosol particles having dimensions of 0.1 - 10 mcm.
EFFECT: possibility to obtain fine aerosol particles, provision of practically laminar aerosol flow and full discharge thereof due to recombination processes elimination, namely due to prevention of fine aerosol particles conversion into large ones by conglutination thereof.
4 cl, 1 dwg
FIELD: agricultural engineering.
SUBSTANCE: invention relates to devices for atomizing liquids of different viscosity and it can be used for producing highly dispersed aerosols for chemical protection of plants, in fog generators for sheltered grounds and decontamination of live stock barns and animals. Proposed pneumoacoustic liquid atomizer has nozzle housing, rod-type radiator arranged coaxially in nozzle housing in closed-type bearings and fixed from axial displacement by lock ring. Unit to deliver compressed air is installed on bushing enclosing nozzle housing and fixed by locknut. Such connection forms ring-shaped air channel communicating with compressed air supply system through union and holes uniformly distributed in nozzle housing. Concentric nozzle enclosing, by taper part, nozzle housing with clearance is connected with liquid feed system by union and is pressed to bushing by union nut. Blades are arranged in space of gas jet radiator formed by inner space of nozzle housing at its outlet and rod radiator, blades being secured on rod radiator. Acoustic vibration resonator is secured on end of rod radiator projecting beyond nozzle housing cut. Flexible element mounted in resonator space is protected by wear resistant deflecting washer with cross cuts which is installed in resonator with clearance.
EFFECT: provision of reliability and faultlessness in operation and formation of perfectly aimed jet, thus increasing utilization factor.
FIELD: apparatus for spraying or atomizing of liquids.
SUBSTANCE: generator has nozzle disk for dispersing liquid, oppositely rotating gearing rims for additional breaking the drops generated, and centrifugal fan for generating air flow around the gearing rims. The large drops are separated in the field of centrifugal forces in the air flow. The large drops are then utilized and supplied to the repeatable spraying, whereas the small drops are carried by the air flow through the rotatable nozzle to the atmosphere to generate a cloud. The generator allows the control of cloud density and maintenance of drop dispersity.
EFFECT: reduced power consumption.
FIELD: agriculture; devices for an atomization of a liquid.
SUBSTANCE: the invention is pertaining to the field of agriculture, in particular, to devices for an atomization of a liquid and may be used in the spraying equipment used for chemical protection of plants, in fog generators for a sheltered ground, at decontaminating treatment of livestock barns and animals. The pneumoacoustic atomizer of a liquid has a body of a nozzle, a rod-type emitter coaxially located in the body of the nozzle in the shut-type bearings and fixed to prevent its axial movement by a retaining ring. On the bush there is a compressed air feeding union enveloping the body of the nozzle and fixed by a retaining nut. Such a junction forms an air duct of the ring-type form, which through the union and uniformly distributed holes in the body of the nozzle is connected to a compressed air supply system. A concentric nozzle with its the conical part enveloping the body of the nozzle with a backlash, is connected to a liquid supply system by the union and braced to the bush by a sleeve nut. On the end of the rod-type emitter protruding beyond the shear of the nozzle body there is a fixed resonator of the acoustic vibrations. In the resonator cavity there is an elastic component protected by a high-wear-resistant reflective washer mounted with a backlash in the resonator. The offered design of the pneumoacoustic atomizer ensures uninterrupted operation, and also retention of a strictly directional and whirling a finely dispersed cloud of an aerosol increasing the aerosol capability to penetrate deep into a volumetric crown, ensures the address hit of drips on the elements of plants and reduced losses of an aerosol liquid particles to a minimum with a more uniform distribution of the drips on the treated object and so increasing efficiency of the liquid atomization.
EFFECT: the invention ensures increased efficiency of the liquid atomization.
3 cl, 2 dwg
FIELD: liquid spraying equipment, particularly with the use of ultrasound oscillations, for machinery building and combustion devices, for low-temperature and cryogenic liquid spraying, for fusible metal liquid dispersion and for aerosol distribution in medicine.
SUBSTANCE: method involves applying axisymmetric ultrasound oscillations to surface layer of the liquid in parallel to major free surface thereof. Device for above method realization includes piezoelectric ultrasonic transducer and bowl-shaped concentrator coaxial with the transducer and having varying cross-sectional thickness. In area having the highest cross-sectional thickness concentrator is rigidly connected to working pad of transducer. Concentrator has cylindrical inner surface in area having lesser cross-sectional thickness.
EFFECT: increased reliability and effectiveness of spraying system, possibility to obtain fine aerosol.
2 cl, 1 dwg
FIELD: hydraulic structures, particularly decorative illuminated fountains with changeable spray and lightening.
SUBSTANCE: illuminated fountain is provided with body having opened top and bottom orifice, as well as control unit for liquid supply regulator arranged at liquid inlet of accumulation chamber. The accumulation chamber is arranged in lower body part, which communicates with elevated pressure chamber through annular transition member. The elevated pressure chamber is connected with annular slot-like liquid outlet defined by two conical surfaces. The first conical surface is arranged in upper body part, the second one is made as part of outer surface of liquid receiver formed as hollow truncated cone. The lesser base of the truncated cone is connected to hollow cylinder. Liquid receiver is inside the body and extends along body axis so that cylinder orifice coincides with the orifice formed in body bottom. Radius of annular slot-like outlet, angle of slot inclination relative device axis and width thereof are selected to provide acute angle between initial spray part and device axis, to provide following change in spray direction and falling thereof into funnel-shaped liquid receiver.
EFFECT: simplified structure, increased appearance due to possibility to combine fine spray shape and original illumination, possibility of fountain usage in the case of low stray light or in the absence thereof.
10 cl, 2 dwg
FIELD: apparatus for spraying or atomizing liquids or other fluent materials in different industries, particularly decorative fountains.
SUBSTANCE: spraying device comprises manifold and spring with coils abutting upon each other. The spring is installed at manifold outlet and is provided with cap connected to free end thereof. Spraying device has flow splitter connected to the cap. Different variants of splitter and connection structure, which fastens splitter to cap, are also disclosed. The spring may be installed at manifold outlet by means of ball hinge. Nozzle may be installed at manifold outlet.
EFFECT: improved appearance and amusing properties due to usage of sprayers, which create dynamic randomly changeable spray patterns.
24 cl, 8 dwg
FIELD: ecology monitoring systems, possibly in agriculture and medicine.
SUBSTANCE: method is designed for providing ecological safety at spraying toxic chemical compositions and drug preparations. Method comprises steps of creating auto-generation of finely divided aerosol with predetermined size of electrically charged drops; applying sprayed liquid on tensioned string; adding to said string voltage no less than 10 kV; regulating string tension.
EFFECT: improved effectiveness, enhanced ecological safety.
FIELD: environment control; reduced use of toxic chemicals and drugs in farming.
SUBSTANCE: proposed method consists in forming electrified aerosol by passing dielectric liquid at high velocity of 30-60 m/s through narrow passage at diameter of 1-1.5 mm which is made from another dielectric; passages have nozzle-shaped form with several constrictions and widened sections; external metal clips are fitted in narrow sections of passage; liquid is set in rotation with the aid of swirlers before inlet part of passage and outlet part narrowed.
EFFECT: enhanced ecological safety; enhanced economical efficiency; enhanced energy safety.
FIELD: airborne spraying systems; distribution of agrochemicals, pesticides and other liquids over surfaces in farming.
SUBSTANCE: proposed aviation spraying system includes liquid sprayers brought into incoming flow of air. Secured in front of each sprayer is air velocity regulator made in form of air duct with air intake mounted at its inlet; air intake is provided with adjustable shutters; air flow straightening grid is mounted at the outlet.
EFFECT: possibility of spraying liquids at preset spectrum of drops at varying flight speed of aircraft relative to air medium.