Kochetov's swirl atomiser

FIELD: machine building.

SUBSTANCE: swirl atomiser comprises the housing with auger, located inline in the housing bottom, and located in the top of the housing the choke with a cylindrical hole for fluid supply, connected with a diffuser, axisymmetric to housing and choke, the auger is pressed-in into the housing with formation of the conical camera located above the auger inline with the diffuser and connected with it in series, and the auger is made solid, and auger external surface is composed from connected in series two surfaces, one of which is at least single-thread helical groove with right or left thread and is located in the casing , and second surface is made smooth as solid of revolutions, axisymmetrically connected with spraying disk located perpendicularly to the casing axis, and protruding beyond the end face of the casing bottom part, at that both straight line and curved line of n-power can be used as line creating this surface. The surface of spraying disk protruding out of the end face of the casing bottom, is made deflected towards the casing bottom and has on the peripheral part the radial cutouts alternating with the solid part of the surface of the atomising disk. To the surface of the spraying disk protruding beyond the end face of the casing bottom the divider is secured made as rod vertical, axisymmetric to the atomiser casing, to its bottom part at least three inclined spokes are secured, at free ends of the spokes looking towards the spraying disk the impellers are installed with possibility of rotation around the spoke axis.

EFFECT: higher efficiency of liquid spraying.

2 dwg

 

The invention relates to the atomization of liquids and solutions.

The closest technical solution to the claimed object is a fuel injector according to the patent of Russian Federation №2480295, F02C 7/24, comprising a housing with screw, coaxially located in the lower part of the housing, and located in the upper part of the body, the fitting with a cylindrical bore for the supply of fluid connected to the diffuser, the axisymmetric body and the fitting (prototype).

A disadvantage of the known nozzle is a relatively low degree of spray and the complexity of the design.

The technical result - improving the efficiency of atomization of the liquid.

This is achieved in that in the vortex nozzle, comprising a housing with screw, coaxially located in the lower part of the housing, and located in the upper part of the body of the fitting with a cylindrical bore for the supply of fluid connected to the diffuser, the axisymmetric body and the fitting, the screw is pressed into the housing with the formation of the conical chamber located above the screw, coaxially to the cone, and connected with it consistently, and the screw is made solid, and the outer surface of the auger consists of two series-connected surface, one of which represents at least single-thread helical groove on the right or left-hand thread, and is located inside the housing�, and the second surface is made smooth in the form of a body of rotation, and symmetrically connected to the spray disk perpendicular to the axis of the housing, and supports the end surface of the lower shell, and as the lines forming this surface, can be both a straight line and a curve of the n-th order, and the surface of the spray disk extending beyond the end surface of the lower part of the casing is bent towards the bottom of the housing and has on the peripheral portion of the radial cutouts alternating with a solid part of the surface of the spray disk.

Fig. 1 is a perspective view of the nozzle of Fig. 2 - version with extended nozzle for the end of the housing, the auger having two different outer surface.

Vortex nozzle (Fig. 1) includes a housing 1 with a screw 7, coaxially disposed in the lower part of the housing, and is positioned in the upper part of the hull fitting 2 with a cylindrical bore 3 for supplying fluid connected to the diffuser 4, the axially symmetric body 1 and the nozzle 2. For tight connection of the housing 1 with the nozzle 2 is provided on the sealing strip 5. The screw 7 is pressed into the housing with the formation of the conical chamber 6 is located above the auger 7, coaxially to the diffuser 4, which is connected with it consistently. The screw 7 is made solid, and the outer surface SN�ka 7 represents two series-connected surface, one of which represents at least a single helical groove 8 on the right or left-hand thread and is arranged inside the housing 1 and the second surface 10 is made smooth in the form of a body of rotation, and symmetrically connected to the spray disk 11 perpendicular to the axis of the housing, and supports the end surface of the lower shell, and as the lines forming this surface, can be both a straight line and a curve of the n-th order, for example, spherical, elliptical, parabolic, etc. (Fig. 2). The screw 7 in this case can be fixed in the housing additionally by means of screws 9. The auger nozzle 7 is made of solid materials: tungsten carbide, ruby, sapphire.

The surface of the spray disk 11 extending beyond the end surface of the lower part of the housing 1, is bent towards the bottom of the housing and has on the peripheral portion of the radial cutouts (not shown), alternating with a solid part of the surface of the spray disk 11.

To the surface of the spray disk 11 extending beyond the end surface of the lower part of the housing 1, is attached to the divider, made in the form of vertical axi-symmetric nozzle body 1, the rod 12, the bottom of which is attached, at least three inclined spokes 13, on free to�ncah which, facing the spray disk 11 mounted impeller 14 with the possibility of rotation around the axes of the spokes 13.

Vortex atomizer for atomization of liquids is as follows.

Liquid is supplied along the cylindrical hole 3 in the diffuser 4, and from there into the conical chamber 6, from which the pressure supplied screw in the external cavity of the screw 7. The rotating fluid flow in the outer spiral cavity of the screw forms a swirling motion, thus there is further fragmentation of liquid droplets due to the turbulence of the flow at the outlet, fine rotating flow exits the nozzle with a wide rotating torch sputtered liquid (solution), and encounters the surface of the spray disk 11, on which the peripheral portion, bent toward the bottom of the housing provided with radial cutouts alternating with a solid part of the surface of the spray disk 11, thus increasing the surface of the atomization of liquids with simultaneous additional fragmentation of liquid drops.

Vortex nozzle, comprising a housing with screw, coaxially located in the lower part of the housing, and located in the upper part of the body of the fitting with a cylindrical bore for the supply of fluid connected to the diffuser, the axisymmetric body and the fitting, the screw is pressed � the casing with the formation of the conical chamber, located above the screw, coaxially to the cone, and connected with it consistently, and the screw is made solid, and the outer surface of the auger consists of two series-connected surface, one of which represents at least a single helical groove on the right or left-hand thread and is arranged inside the housing, and the second surface is made smooth in the form of a body of rotation, and symmetrically connected to the spray disk perpendicular to the axis of the housing, and supports the end surface of the lower shell, and as the lines forming this surface may be a straight line and a curve of the n-th order, characterized in that the surface of the spray disk extending beyond the end surface of the lower part of the casing is bent towards the bottom of the housing and has on the peripheral portion of the radial cutouts alternating with a solid part of the surface of the spray disk, to the surface of the spray disk extending beyond the end surface of the lower shell attached to the divider, made in the form of vertical axi-symmetric nozzle body of the rod, the bottom of which is attached, at least three inclined spokes, at the free end of which, facing Raspletin�tion of the disk, installed the impeller with the possibility of rotation around the axes of the spokes.



 

Same patents:

FIELD: machine building.

SUBSTANCE: proposed sprayer comprises casing with auger pressed therein and fluid feed union. Said casing consists of two aligned and coupled cylindrical sleeves: large diameter sleeves and small diameter sleeves. In the small diameter sleeve coaxially with it an auger is located, it is rigidly connected with its internal surface, at that the external surface of the auger is helical groove, and inside the auger at least two rows of through holes are made concentrically along circles. In each row at least three holes are made, and diameters of holes decrease from the auger axis to peripheral holes, and in the large diameter sleeve coaxially with it an union is installed, it is rigidly secured in it via the sealing gasket. In the union coaxially cylindrical hole is made, it transits in axisymmetric diffuser connected with the cylindrical chamber created by internal surface of the small diameter sleeve, and end face of the auger, and inside the auger coaxially and axisymmetrically with it a rod is secured, its one end is located flush with its end face looking on the union, and at the other free end of the rod at right angle to its axis at least two uniformly located along the rod length disks are installed, their diameters increase towards free end of the rod. On the free end of the rod the perforated sprayer is installed made in form of spherical segment, its concave part looks towards the disk last through the rod length, and to the peripheral part of the spherical segment the perforated cone shell is secured, the another part is rigidly connected with the end face of the cylindrical sleeve with small diameter of the injector casing.

EFFECT: higher efficiency of spraying.

3 cl, 1 dwg

FIELD: machine building.

SUBSTANCE: proposed sprayer comprises casing with auger pressed therein and fluid feed union. Said casing consists of two aligned and coupled cylindrical sleeves: large diameter sleeves and small diameter sleeves. In the small diameter sleeve coaxially with it an auger is located, it is rigidly connected with its internal surface, at that the external surface of the auger is helical groove, and inside the auger at least two rows of through holes are made concentrically along circles. In each row at least three holes are made, and diameters of holes decrease from the auger axis to peripheral holes, and in the large diameter sleeve coaxially with it a union is installed, it is rigidly secured in it via the sealing gasket, at that inside the union a cylindrical hole is made coaxially, passing to an axially symmetrically located diffuser, which is connected to a cylindrical chamber formed by the inner surface of the sleeve of smaller diameter, and the end surface of the auger; and inside the auger coaxially and axisymmetrically with it a rod is secured, its one end is located flush with its end face looking on the union, and at the other free end of the rod at right angle to its axis at least two uniformly located along the rod length disks are installed, their diameters increase towards free end of the rod. The disks uniformly installed along the rod length and having diameters increasing towards free end of the rod are made perforated.

EFFECT: higher efficiency of spraying.

3 cl, 1 dwg

FIELD: machine building.

SUBSTANCE: swirl injector comprises a casing with an auger pressed therein and a fluid feed union, the casing consists of two coaxial and coupled cylindrical sleeves: larger-diameter and smaller-diameter sleeves. The auger is rigidly fixed with the inner surface of the smaller diameter sleeve and is set inside the said sleeve coaxially to it; the outer auger surface represents a screw groove and, at least, two rows of through bores arranged concentrically along the circumferences are made inside the auger. Note that every said row has, at least, three bores while bore diameters decrease from the auger axis to peripheral bores. Larger-diameter sleeve comprises a union rigidly and coaxially fixed therein. The said union has a coaxial cylindrical bore changing into axially symmetric diffuser communicated with a cylindrical chamber formed by the inner surface of the smaller-diameter sleeve and the end face surface of the auger. A pin is fixed in the auger coaxially and axisymmetrically to it, one pin end is located aflush with the pin end face surface turned to the union and the other free pin end is fitted by at least two disks set perpendicular to its axis and evenly distributed along the pin length, the disk diameters increase to the free pin end and the latter is fitted by a perforated sprayer made as a spherical segment with its concave part being turned to the disk which is the last along the pin length.

EFFECT: higher efficiency of spraying.

3 cl, 1 dwg

FIELD: machine building.

SUBSTANCE: centrifugal wide-flare sprayer comprises a casing with a vortex chamber and a sprayer insert, at that the casing is made with an inlet pipe having a hole, with an inlet cylindrical chamber coaxial to the pipe, a vortex chamber installed coaxially with the inlet chamber and made in the form of a cylindrical cup provided with at least three tangentially located holes on the side surface, their axes are tangential to the vortex chamber, i.e. there is a multi-channel tangential input; the sprayer insert with the outer diameter D1 is installed coaxially with the vortex chamber, inside the insert there are three calibrated holes located in series and coaxial to each other and to the cylindrical surface of the vortex chamber: cone hole with diameter D of bottom base of truncated cone, central cylindrical hole with diameter d2, and output cone hole. The screw thread is made on surface of the cone hole with diameter D of the bottom base of the truncated cone looking towards the vortex chamber.

EFFECT: higher efficiency of spraying.

2 dwg

FIELD: machine building.

SUBSTANCE: centrifugal wide-flare sprayer comprises a casing with a vortex chamber and a sprayer insert, at that the casing is made with an inlet pipe having a hole, with an inlet cylindrical chamber coaxial to the pipe, a vortex chamber installed coaxially with the inlet chamber and made in the form of a cylindrical cup provided with at least three tangentially located holes on the side surface, their axes are tangential to the vortex chamber; the sprayer insert out of hard materials is installed coaxially with the vortex chamber, inside the insert there are two calibrated holes located in series and coaxial to each other and to the cylindrical surface of the vortex chamber: cylindrical hole and cone hole acting as diffuser increasing cone angle at the flare top of liquid spraying; to the bottom of the cylindrical sleeve in the vortex chamber from the side of the sprayer insert the screw feed with screw blade is secured axisymmetric and coaxially, the blades are directed opposite to direction of the flow vortex in the vortex chamber.

EFFECT: higher efficiency of spraying.

2 dwg

FIELD: machine building.

SUBSTANCE: centrifugal wide-flare sprayer comprises a casing with a vortex chamber and a sprayer insert, at that the casing is made with an inlet pipe having a hole, with an inlet cylindrical chamber coaxial to the pipe, a vortex chamber installed coaxially with the inlet chamber and made in the form of a cylindrical cup provided with at least three tangentially located holes on the side surface, their axes are tangential to the vortex chamber, i.e. there is a multi-channel tangential input; the sprayer insert with the outer diameter D1 is installed coaxially with the vortex chamber, inside the insert there are three calibrated holes located in series and coaxial to each other and to the cylindrical surface of the vortex chamber: a conical hole with the diameter D of the bottom base of truncated cone, a central cylindrical hole with the diameter d2 and an output conical hole with the diameter d3 of the bottom base of the truncated cone, at that diameter d2 of the central cylindrical hole of the sprayer insert is equal to the diameter of top base of the truncated cone of the conical hole and to the diameter of the top base of the truncated cone of the output conical hole. It is additionally equipped by a filter to clean water from mechanical impurities which is made as a ring and set coaxially to the cylindrical surface of the vortex chamber and adjoins its outer cylindrical surface without gaps closing the holes provided tangentially in the vortex chamber. The filter can be fastened by a yoke or the filter is made as a cup put-on on the outer surface of the vortex chamber without gaps.

EFFECT: higher efficiency of spraying.

2 dwg

FIELD: technological processes.

SUBSTANCE: invention relates to liquid and solution spraying devices and can be used in engine building, in the chemical and food industries. A centrifugal atomiser with an active spray gun includes a housing, in which a screw is pressed, and a liquid supply nozzle; the housing consists of two coaxial cylindrical sleeves attached to each other: a sleeve of a larger diameter and a sleeve of a smaller diameter; with that, inside the sleeve of the smaller diameter, coaxially to it, there located is a screw rigidly attached to its inner surface, for example pressed into it; besides, the outer surface of the screw represents a spiral groove, and inside the screw there is a hole with a screw thread, and in the sleeve of the larger diameter, coaxially to it, there located is a nozzle rigidly fixed in it, for example by means of a threaded connection, through a sealing gasket; with that, inside the nozzle there coaxially made is a cylindrical hole changed over into an axisymmetrically located diffuser that is connected to a cylindrical chamber formed with the inner surface of the sleeve of the smaller diameter and the end surface of the screw, and to the end surface of the sleeve of the smaller diameter there attached is an active spray gun of a rod type with blades, which is made in the form of a flattened tetrahedron attached to the end surface of the sleeve of the smaller diameter, the ribs of which are represented by rods with blades with limit stops, which are fixed on them so that there can be a possibility of their rotation against vortex flows leaving the atomiser screw; with that, the ribs of the tetrahedron base are also connected with rods to the blades and limit stops fixed on them.

EFFECT: improvement of spraying efficiency.

1 dwg

FIELD: machine building.

SUBSTANCE: centrifugal wide flame sprayer has casing with vortex chamber, at that the casing is made with inlet nozzle having hole, sprayer insert, inlet cylindrical chamber, vortex chamber installed coaxially with the inlet chamber and made in form of a cylindrical sleeve, the sleeve side surface has at least three tangentially located holes, their axes are tangential to the vortex chamber i.e. there is multi-channel tangential input; the sprayer insert is installed coaxially with the vortex chamber, the insert OD is D1, inside the insert there are three calibrated holes located in series and coaxial to each other and to cylindrical surface of the vortex chamber: cone hole with diameter D of bottom base of truncated cone, central cylindrical hole with diameter d2 and output cone hole with diameter d3 of bottom base of the truncated cone, at that diameter d2 of central cylindrical hole of the sprayer insert is equal tot the diameter of top base of the truncated cone of the cone hole and to diameter of top base of the truncated cone of the output cone hole. The cone horn is connected to the casing end face from the vortex chamber side, axisymmetric with the casing, the horn increases flame of the sprayed liquid connected with the cylindrical perforated shell.

EFFECT: higher efficiency of spraying.

2 dwg

FIELD: machine building.

SUBSTANCE: nozzle comprises a cylindrical housing with the union rigidly connected to the housing, and axially located in the upper part of the housing, and having a cylindrical hole for fluid supply, connected to a diffuser, axisymmetrical to the housing and union, to the housing, in its bottom part, by means of at least three spokes the sprayer is connected, which is located perpendicularly to the housing centreline and designed as a continuous disk, in the cylindrical hole for fluid supply, axially to it the flow twisting element is located, which is fixed by lock washers and is designed as a helical cylindrical spring, the coils of which have rectangular section, and the rectangle large side is located perpendicularly to the hole axis.

EFFECT: increase of spraying efficiency and design simplification.

5 cl, 3 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to fluid sprayers and may be used in machine building, chemical and food industries. Swirl atomiser comprises case with screw aligned in the case bottom section. Case top part union has cylindrical fluid feed hole. The latter communicates with diffuser axially symmetric with case and union. Screw is inserted into case to make cylindrical chamber above said screw and aligned with diffuser and communicated therewith. Solid screw outer surface is composed of two connected surfaces. One of said surfaces represents, at least, single-thread helical groove with LH or RH thread located inside said casing. Second surface is smooth and composed of the body of revolution connected in axial symmetry with sprayer disc arranged perpendicular to housing axis. Besides, it extends beyond the housing bottom. Both straight line and n-order curve may make a generating line of said surface. Sprayer disc surface extending beyond housing bottom end surface is bent towards housing bottom. It has radial cut-outs ate peripheral part to alternate with solid surface of sprayer disc.

EFFECT: higher efficiency of spraying.

2 dwg

FIELD: machine building.

SUBSTANCE: centrifugal atomiser with counter swirling flows contains a casing with vortex chambers and nozzle. The casing is made in form of the union with hole for liquid supply from main line and rigidly connected with it cylindrical coaxial sleeve with external thread. In the sleeve cone and cylindrical cavities are installed in series, they are coaxial with hole for liquid supply. Coaxially with casing in its bottom part a nozzle is connected, it is made in form of two-stage centrifugal cylindrical swirler connected with output cone chamber of the nozzle and separated from the hole for liquid supply by the perforate partition, secured at the end surface of the swirler casing. The partition looks towards the liquid supply, at that the first stage of the swirler is located in its top part, and contains cylindrical chamber with coaxially installed rod and secured on it helical plate. At that rod is secured in centre of the perforate partition. Second stage of the swirler is located coaxially with the first one and is made by ring cylindrical chamber connected is series with the cylindrical chamber of the swirler first stage, and has tangential inputs for liquid supply via the cylindrical ring cavity made by the casing of the swirler and cylindrical cavity of the sleeve. On the cone surface of the output cone chamber of the nozzle the screw thread is cut with direction of the flow swirling, opposite to direction of two-stage centrifugal cylindrical swirler.

EFFECT: increased efficiency of spraying due to increase of spray and to fine dispersion of sprayed liquid.

2 dwg

FIELD: machine building.

SUBSTANCE: invention relates to machine building, maintenance and repair of machines and parts due to highly intensive cavitation saturation of a liquid jet. Technical result is achieved due to the fact that a high frequency atomiser comprising a casing with a mixing chamber, a nozzle communicated with the mixing chamber, flow swirling units, a swirler, spacers with axial spiral channels, is equipped by a dynamic cavitator at the output nozzle, the cavitator provides for the saturation of a jet coming out of the atomiser nozzle by cavitation masses. The dynamic cavitator is made as a resilient plate set perpendicular to the nozzle axis at the height of ≈0.3 nozzle diameter, the specified natural vibration frequency of the unit is equal to approximately 120 Hz. The total pressure at the atomiser nozzle output shall be not less than the cavitation threshold value.

EFFECT: invention provides for high quality cleaning of surfaces without cleaning agents being used.

1 dwg

FIELD: agriculture.

SUBSTANCE: sprinkler nozzle-activator comprises a housing and a deflector attached to the helical rack. The deflector is in the form of a bladed disc which blades are made on elliptic curves, the output edges of which are directed tangentially to the outer surface of the disc. The height of the blades corresponds to the required flow rate through the sprinkler nozzle-activator. In the interlobe space the spirals of left-hand orientation are fixed. Fixing the deflector to the housing is arranged by means of bolts, for this purpose on the deflector disc the protrusions are provided with the holes. The height of the protrusions is equal to the height of the blades, and the shape of the protrusions corresponds to the curved shape of the blades. In the central part of the blade disc a flow divider is fixed through the screws, made in the form of a surface of rotation of a parabola z2=px near the axis z.

EFFECT: improvement of the structure of rain, uniformity of its distribution on the irrigated field and increase in yield.

2 dwg

FIELD: agriculture.

SUBSTANCE: invention relates to method of irrigation using fine and drip sprinkling, and can be used in the mobile installations to ensure rain with drops size permitted for sprinkling of wide spectrum of crop. In the cascade-wave sprinkler the casing is made detachable, connected out of two halves by ribs using bolted joints. In internal cavity of the casing the deflector pole is installed by cone tip upwards. The deflector contains arc-shape fixtures to internal side of the casing of the wave blades connected with the casing by screws. The wave blades are made as segmental, and are secured on the casing wall by cascades. The blades are secured to the casing wall along the helical line with left hand direction. In bottom part of the casing the cone replaceable sprinkler with water catching aprons is secured using flanges. The water catching aprons are deflected from the wall of the cone replaceable sprinkler at some angle. The rear guide wall is made as per curve of the function y=arctgx, where y is coordinate of the curve point through vertical, x is coordinate of the curve point through horizontal. The water catching aprons are directed CCW by the input windows and are connected with water outlet holes. Face wall of the water outlet holes is made at angle towards wall of the cone replaceable sprinkler. Top edge of the water catching aprons has cut parallel to the wall of the replaceable cone sprinkler.

EFFECT: possibility of selection of the optimal rain parameters, increased operation reliability, simple design, increased crop-producing.

3 dwg

FIELD: machine building.

SUBSTANCE: proposed vortex injector comprises casing with auger pressed therein fluid and air feed elements. Said casing consists of two coaxial and coupled cylindrical sleeves: large diameter sleeves and small diameter sleeves, and inside the small diameter sleeve coaxially with it a auger is installed rigidly coupled with its internal surface, at that external surface of the auger is helical groove with right or left thread. Between the internal surface of the small diameter sleeve and external surface of the auger a helical external surface is created, it is connected by means of tube with the compressed air source, and inside the auger a hole is made with left or right thread connected with tube for liquid under pressure supply, at that direction of thread cutting in hole made inside the auger opposite to direction of the external helical groove of the auger, and in large diameter sleeve coaxially with it a shaped sleeve is located, its internal surface is created by cone and cylindrical surfaces, and it is rigidly secured in the large diameter sleeve via the sealing gasket creating the cylindrical chamber performing functions of the dampening tank for uniform compressed air supply to the helical external cavity, at that in the cylindrical cavity of the shaped sleeve a free end of the tube for liquid supply is provided, it is located in coaxial resilient ring served for dampening if the hydraulic impact in case of non-uniform liquid supply. In end part of the small diameter sleeve of the casing the diffuser is secured, at its end divider of the liquid flow is installed, it is made in form of the perforated ring coaxial with the diffuser.

EFFECT: higher efficiency of liquid spraying.

3 cl, 1 dwg

FIELD: machine building.

SUBSTANCE: proposed sprayer comprises casing with auger pressed therein and fluid feed union. Said casing consists of two aligned and coupled cylindrical sleeves: large diameter sleeves and small diameter sleeves. In the small diameter sleeve coaxially with it an auger is located, it is rigidly connected with its internal surface, at that the external surface of the auger is helical groove, and inside the auger at least two rows of through holes are made concentrically along circles. In each row at least three holes are made, and diameters of holes decrease from the auger axis to peripheral holes, and in the large diameter sleeve coaxially with it an union is installed, it is rigidly secured in it via the sealing gasket. In the union coaxially cylindrical hole is made, it transits in axisymmetric diffuser connected with the cylindrical chamber created by internal surface of the small diameter sleeve, and end face of the auger, and inside the auger coaxially and axisymmetrically with it a rod is secured, its one end is located flush with its end face looking on the union, and at the other free end of the rod at right angle to its axis at least two uniformly located along the rod length disks are installed, their diameters increase towards free end of the rod. On the free end of the rod the perforated sprayer is installed made in form of spherical segment, its concave part looks towards the disk last through the rod length, and to the peripheral part of the spherical segment the perforated cone shell is secured, the another part is rigidly connected with the end face of the cylindrical sleeve with small diameter of the injector casing.

EFFECT: higher efficiency of spraying.

3 cl, 1 dwg

FIELD: machine building.

SUBSTANCE: proposed sprayer comprises casing with auger pressed therein and fluid feed union. Said casing consists of two aligned and coupled cylindrical sleeves: large diameter sleeves and small diameter sleeves. In the small diameter sleeve coaxially with it an auger is located, it is rigidly connected with its internal surface, at that the external surface of the auger is helical groove, and inside the auger at least two rows of through holes are made concentrically along circles. In each row at least three holes are made, and diameters of holes decrease from the auger axis to peripheral holes, and in the large diameter sleeve coaxially with it a union is installed, it is rigidly secured in it via the sealing gasket, at that inside the union a cylindrical hole is made coaxially, passing to an axially symmetrically located diffuser, which is connected to a cylindrical chamber formed by the inner surface of the sleeve of smaller diameter, and the end surface of the auger; and inside the auger coaxially and axisymmetrically with it a rod is secured, its one end is located flush with its end face looking on the union, and at the other free end of the rod at right angle to its axis at least two uniformly located along the rod length disks are installed, their diameters increase towards free end of the rod. The disks uniformly installed along the rod length and having diameters increasing towards free end of the rod are made perforated.

EFFECT: higher efficiency of spraying.

3 cl, 1 dwg

Nozzle head // 2551289

FIELD: machine building.

SUBSTANCE: invention relates to devices to speed up a gas-dynamic (compressible) flow to supersonic velocities in different spheres of technical activities (sand blasters, vacuum cleaners, dust extractors, gas catchers, phase separators, oil cracking etc. equipment for chemical industry and household appliances). At least one nozzle in the nozzle head is made as a tapering part with critical section. The critical section enters the expanding part with a gap communicated with a cavity. The expanding part is set inside the nozzle head starting from the first to the last but one nozzle, in the form of an expanding shell. At the nozzle head outlet in the last nozzle the expanding part is made as an expanding shell or a concave or convex lip.

EFFECT: reduced power consumption in start-up and operation modes, provision for more stable operation mode, expanded range of application.

4 cl, 5 dwg

FIELD: machine building.

SUBSTANCE: liquid flow spreader is fixed to the end face surface of a captive nut in an active spreader for a nozzle. The spreader is of pin type in the form of a truncated tetrahedron attached to the end face surface of the captive nut. The tetrahedron ribs are pins with blades with stops being mounted on them. Thus rotation of blades is provided due to the flows outgoing from a throttle plate with a nozzle jet. The tetrahedron base ribs are also connected to the blades with stops being mounted on them, by the pins.

EFFECT: higher efficiency of liquid atomising.

1 dwg

FIELD: fire safety.

SUBSTANCE: in the sprinkler of foam type the nozzle body is rigidly connected to the cup. In the bottom of the cup, a cylindrical through opening is made, coaxial with the nozzle opening. In the opening a poppet valve with a glass flask is mounted. In the bottom of the cup, at least three inclined openings are made, connecting the cavity of the cup with the atmosphere.

EFFECT: increased efficiency of fire-extinguishing through the introduction of the spraying device, excluding turbulence of flow of fire-extinguishing liquid or solution of foam generator.

1 dwg

FIELD: oil and gas industry.

SUBSTANCE: in end piece, flow conic slit-like channel of variable section is made screwed with rotation of longitudinal axis for angle 20-60°. Section at output is decreased in comparison to input in 1.5-3 times.

EFFECT: higher efficiency.

3 dwg

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