Liquid sprayer

FIELD: liquid spraying equipment, particularly used in fire-fighting, sanitary and watering facilities, for liquid fuel combustion, etc.

SUBSTANCE: sprayer has body with channels for liquid jets forming and liquid supply nipple. The channels are directed so that axes thereof cross beyond channel outlets in sprayed liquid flow generation space. Minimal distance between crossing axes does not exceed hydraulic channel radius Rh value. Distance between outlet channel sections and sprayed liquid flow generation space defined by plane with minimal distance between crossing channel axes preferably does not exceed 80Rh. Sprayer body may be provided with chamber shaped as solid of revolution and installed beyond outlet channel sections. Axial channel may be formed in the sprayer body. Channels may have equal cross-sections. Sprayer in accordance with the second embodiment has one channel with cross-sectional area, which is not more than 2 times greater than that of another one.

EFFECT: increased uniformity of droplet intensity and dispersion over flow section, reduced energy consumption.

1 cl, 7 dwg

 

The invention relates to a technique of spraying liquid and can be used in fire suppression systems, plumbing equipment, combustion of liquid fuels, sprinkling units, etc.

Known dispenser, comprising a housing with channels for the formation of liquid jets and the socket for the supply of liquid, in which the axes of each pair of channels are arranged so that the spray jet fuel intersect and merge, forming a single torch sputtered particles conical shape with minimal deviation from the Central axis of the spray (see patent US 5044562 published 03.09.1991, IPC F 02 M 51/06). The disadvantage of this device is a significant loss of kinetic energy when spraying liquid, which is due to the formation of annular jets.

Also known dispenser, comprising a housing with channels for the formation of liquid jets and the socket for the supply of liquid. The outlet channels for the fluid is formed on axisymmetric surfaces with V-shaped profile. Spraying liquid in the known device is the result of a collision of the jets of fluid in a certain spatial region, which is located opposite the outlet openings of the channels for supplying the liquid (see JP patent 11-076871 published 23.03.1999, the IPC 05, 1/26). The dispenser described in the design which allows to create the stream drops fine spray only at the expense of impact energy flows each other, that limits the possibilities to minimize the energy cost to generate atomized stream.

The closest analogue of the claimed invention is a dispenser, comprising a housing with a curved channels for the formation of liquid jets and the socket for the supply of liquid (see patent US 5358179 published 25.10.1994, the IPC 05, 1/26). The axis of the outlet openings of the channels intersect at some point outside the housing of the dispenser. A fine stream of liquid formed by the collision of the pre-formed in the channels of the liquid jets. Due to the presence in the nozzle body curved channels, the fluid flow before entering the cylindrical sections of the channels, the axial lines of which intersect in the spatial region over the surface of the housing of the dispenser has an additional angular velocity.

The increase in the relative speed of the jets due to the preliminary winding streams and, consequently, increase the angular velocity of the jets improves the efficiency of the spraying jets of liquid in a fine spray stream. However, despite these advantages of the known device, in the process of forming a curved liquid jets appear additional loss of kinetic energy due to the increase of the hydraulic resistance of the inlet channels padcheritsei.

The present invention is the creation of spray liquid to generate streams of liquid droplets fine spray with a given spatial configuration provided a reduction in flow rate and fluid pressure in the supply mains. Technical result achieved is to reduce the energy cost to generate a fine spray flows.

Technical result achieved achieved using spray liquid, comprising a housing with channels for the formation of liquid jets and the socket for the supply of liquid. According to the present invention, the channels for the formation of liquid jets are directed so that their centerlines intersect at the output cross-sections of the channels in the spatial domain the formation of the sprayed fluid flow. The minimum distance between the intersecting centerlines of the channels does not exceed the average hydraulic radius of the cross-section of the channels.

In General, the magnitude of the hydraulic radius for channels of arbitrary cross-section is determined from the relationship:

where RG- the average hydraulic radius of the channel, mm;

ω - the living section of the fluid flow, mm2;

χ - wetted perimeter is the anal, mm

For cylindrical channels are completely filled with the liquid, the value of the hydraulic radius of the channel is determined by the formula:

RG=0,25 D, where D is the diameter of cylindrical channels, mm.

The average hydraulic radius RGchannels defined by the formula:

where RG1, RT2,... RN- hydraulic radii of the channels 1...N, respectively, mm;

N is the number of channels.

In a preferred embodiment of the design of the spray distance between the output sections of the channels and the region of formation of the sprayed fluid flow, the boundary of which the distance between the intersecting centerlines of the channels has a minimum value is not more than 80 RG.

The channels of the dispenser can be made of cylindrical shape. It is advisable that the length of the channels does not exceed 40 RG. The angle of intersection of the frontal projections of the centerlines of the channels is selected in the range from 1° to 179°and to generate long-range jets optimal value of this angle is close to 1°and for the generation of gas-droplet flows with a wide spray the optimum value of the angle is close to 180°. In preferred versions of the design of the spray liquid specified angle is selected in the following dia is hasanah: from 50 to 70° and from 150 to 179°.

Surface input and/or output section of the channels can be made flat. Plane or forming surfaces of the input and output sections of channels made in the body, can be parallel and arranged at an angle not more than 90° to the axis of symmetry of the housing. In preferred versions of the invention this angle is chosen in the range from 50 to 70°. It is advisable that the centerline of the channels are perpendicular to the planes of the output sections of the channels.

Surface input and/or output section of the channels of the dispenser may be in the form of a body of rotation. Forming surfaces of the input and output sections of the channels may be parallel. It is also advisable that the centerline of the channels were perpendicular to the forming surface of the output sections of the channels.

The channels can have the same cross-section or cross-sectional area, at least one of the channels may exceed the cross-sectional area of any other channel is not more than twice. The optimal number of channels is selected from two to six.

In the nozzle body may be made of the axial channel. For the concentration of the generated flow in a certain direction of the nozzle body provided with a chamber in the form of rotation of a body established for the output sections of ka is Alov. In different versions of the spray chamber may have a conical or cylindrical shape.

To reduce hydraulic losses channels may have a narrowing of the input areas, which are conical or conoidal form.

Further, the invention is illustrated by examples of specific performance of the spray liquid with reference to illustrative drawings, which depict the following:

figure 1 - General view of the spray from the region of formation of the sprayed fluid flow in an enlarged scale;

figure 2 - speed section of the spray liquid on the planes A-A;

figure 3 - speed section of the spray liquid on the planes a-a in an embodiment with an additional cylindrical chamber;

figure 4 - scheme of education sprayed fluid flow in the spatial domain crossing jets (view from the side region of formation of the sprayed fluid flow);

figure 5 - schematic representation of front projection centerlines of the channels with the velocity vectors of the intersecting jets of fluid (manual section planes a-a);

figure 6 - General view of the spray from the region of formation of the sprayed fluid flow in an embodiment if the angle of intersection of the frontal projections of the centerlines of the channels equal to 179°.

on Phi is .7 - a stepped section of the spray liquid, depicted in Fig.6, the plane B-B.

The spray liquid, depicted in figure 1 and 2, includes a housing 1 with two cylindrical channels 2 for the formation of liquid jets and the nozzle 3 for supplying a fluid. Channels 2 for the formation of liquid jets are directed so that their axial lines 4 crossed for output sections of the channels in the spatial domain the formation of the sprayed fluid flow (see figure 4 and 5), the minimum distance between the intersecting centerlines of the channels does not exceed the average hydraulic radius RGthe cross-section of the channels K1and K2(see figure 4). The length of the cylindrical channel 2 is 8 RGthat corresponds to the condition of selection of the optimum sizes of channel 2 (the length of the channels does not exceed 40 RG).

Form 5 and 6, the tapered surfaces of the input and output sections of the channels 2 are angled α to the axis of symmetry 7 of the housing. In this example of the invention the value of the α chosen equal to 50°i.e. within the range from 50° to 70° according to the invention. Form 5 and 6 parallel to each other and perpendicular to the axial line 4 of the channel 2.

The nozzle body fluid in this example of the invention is made with an axial channel is 8. Centerline 4 channels 2 spray liquid, shown in figure 2 and 3, are located at an acute angle β in relation to each other. In another exemplary embodiment of a spray liquid of the centerline of the channels can be located at an obtuse angle (β=179°), as shown in Fig.7.

Embodiment of the spray liquid, is shown in figure 3, includes camera 9 has a cylindrical shape. The camera 9 is set for the output sections of the channels 2 in the fluid flow. Chamber length LKdoes not exceed twenty-fold amount equal to its diameter DK. The optimum value of the ratio DK/LKin the present embodiment is 1.5.

The axial line 4 of the channel 2 is skew with a minimum distance between them not exceeding the average hydraulic radius RGchannels 2. The channel 2 has a cylindrical shape with the same cross section. For two identical channels 2 of diameter D=2 mm, the value of the hydraulic radius is: RG=0,25D=0,5 mm

The distance between the output sections of the channels and the region of formation of the sprayed fluid flow, the boundary of which the distance between the intersecting centerlines of the channels has a minimum value is 40 RG(see figure 5), i.e. does not exceed 80 RGaccording to the invention. The boundaries of the 10 spatial region forming a sprayed stream, depicted in figure 5, characterized by the minimal distance between crossing the axial line 4 of the channel 2. Figure 5 shows the intersection of front projection centerline 4 channels 2, which defines the minimum distance between crossing the axial lines 4 arranged in parallel planes.

Angle β the intersection of front projection centerline 4 channels 2, which is shown in figure 5, is 50°i.e. in the range of optimal values β 50° to 70° according to the formula of the invention (figure 5).

Figure 6 presents another embodiment of the design of the spray liquid. This atomizer centerline 11 channels 12 are arranged at an angle to the axis of symmetry 13 of the housing, the value of which is close to 90°. The distance between the axial lines 11 channels 12 as in the first embodiment of the design, does not exceed RG.

The channels 12 are made in a cylindrical insert 14, coaxially mounted in the housing 15 of the spray liquid (Fig.7). Frontal projection of the axial lines 11 channels 12 intersect at an angle, whose value is 179° (within the range of optimal values 150-179°).

In this embodiment, the spray liquid surface of the output sections of the channel 12 has a cone shape, and the surface of the input sections of the channel 12 has the shape of a cylinder with the echoes. Accordingly, forming a conical surface 16 of the output sections of the channels 12 is not parallel to the generatrix of the cylindrical surface 17 of the input sections of the channels 12.

The channels 12 of the formation of liquid jets are made with the input conical sections 18 to reduce hydraulic losses. The housing 15 of the nozzle in the second embodiment, the same as in the first embodiment, has a socket 19 for connection to the backbone of the fluid.

Generation jets sputtered by means of a spray liquid, made according to the present invention, is performed as follows.

The working fluid is supplied from the line supplying fluid to which is connected the spray liquid through the nozzle 3, enters the channels 2 and 8 for the formation of liquid jets. Since the axial line 4 channels 2 crossed in the spatial region forming a sprayed fluid flow with a minimum distance between the lines, not exceeding the average hydraulic radius of the channel 2, is the intersection of only peripheral parts of liquid streams.

As shown in figure 4, while generating liquid jets C1and C2channel K1and K2in the formation of sprayed fluid flow is collision and intersection of the peripheral parts of the structure is C 1and C2moving with velocities V1and V2. It should be noted that figure 4 shows the velocity vectors V1and V2jets C1and C2accordingly, with the normal components of Vn1and Vn2perpendicular to the plane of the drawing, and the tangential components of Vτ1and Vτ2lying in the plane of the drawing.

In the region of intersection of the jets C1and C2under the action of the tangential components of the velocity Vτ1and Vτ2a zone of the vortex (figure 4 shows a circular arrows), in which there is intense destruction of liquid jets and this results in the generation of fine gas-droplet stream. In the area of the vortex is captured rotation intersecting jets of fluid flow with angular velocity ω and linear velocity Vτ. Area videooborudovaniya expands as the convergence of liquid jets C1and C2and captures streams of liquid in the process of moving in the direction from the output sections of the channels 2. The axial displacement of the zone of vortex formation is carried out with velocity Vnthat is a resultant speed of the liquid droplets in the region of intersection of liquid streams (see figure 4 and 5).

It is possible to estimate the angular velocity of rotation ωfluid flow in the region of the vortex, located in the center of the intersection of liquid jets. Speed jets in the area of their intersection are from units to tens of meters per second. The amount of displacement of the axial lines of the liquid jets is on the order of one millimeter or less. It is assumed that the offset of the axial lines of the liquid jets C1and C2with respect to the axial lines of the channels K1and K2at distances not exceeding 80 RGfrom the output sections of the channels is negligible. Based on these parameters, the speed of rotation of the vortex in the formation of spray flow will be from tens to hundreds of thousands of revolutions per second.

The resulting high-speed vortex due to the action of centrifugal force destroys intersecting streams of liquid. As a result of this thin film of liquid into small drops.

The distance between the output sections of the channels and the region of formation of the sprayed fluid flow, the boundary of which the distance between the intersecting centerlines of the channels K1and K2has a minimum value, preferably does not exceed eighty values of the average hydraulic radius of the channel. This is because at large distances from the output sections of the channels is a significant expansion of jets C1and C2and displacement trajectories them on what to achieve, accompanied by the loss of kinetic energy.

The combination of the impact forces of interaction of jets with the centrifugal force generated by the vortex allows you to get in formation of sprayed fluid flow uniform flow drops finely pulverized liquid. However, the centrifugal force allows to obtain more small drops at lower pressure drops. The collision of jets provides the spatial homogeneous flow drops. Thus, with the same initial kinetic energy of the jets of liquid at the use of the invention significantly increases the energy efficiency of the process of atomization of liquid jets and increased spatial uniformity of the fine stream of liquid droplets.

The above effect is manifested in full, if the minimum distance between centerlines of 4 channels 2 (K1and K2and, accordingly, the axial lines of jets C1and C2(see figure 4) does not exceed the average hydraulic radius RGchannels 2. This should take into account the following dependence: the longer the distance between the centerlines of the channels, the less the angular velocity of rotation ω vortex and, consequently, to a lesser extent, the effect of spraying jets of fluid due to the action of centrifugal forces.

Trace the et also consider when the number of channels to 2 produces a more uniform flame spraying of the liquid due to the complete intersection of the jets in the field of the centrifugal force of the vortex. However, there is a real limit on the number of channels, in which the most fully the effect of spraying liquid under the action of centrifugal forces: the number of channels in a preferred embodiment, the spray liquid should not exceed six.

Use spray fluids with different angle β the intersection of front projection centerline 4 channels 2 in the range from 1° to 179° (see figure 5 and 7) allows to get the torches spraying liquids with different taper angles and with different intensity of irrigation surface.

If you perform one of the channels 2 with the cross-sectional area exceeding the cross-sectional area of the other channel 2 can be obtained a fine droplet stream with shifted torch jet spray liquid relative to the axis of symmetry 7 of the housing 1. While the cross-sectional area of one channel should not exceed the cross-sectional area of another channel more than twice. This limitation is associated with a decrease in the efficiency of crushing jets with significant difference of the squares of the cross-sections of the channels 2, since for large R is sliced in the areas of channels reduces the efficiency of the atomization by centrifugal force.

The loss of kinetic energy of the jets due to fluid friction limits the length of the channels 2 twenty values of their diameters. Increasing the length of the channels leads to a reduction of the pressure drop in the channel 2, which determines the quantity of kinetic energy and, consequently, reducing the speed of its discharge from channel 2.

The distance between the output sections of the channels and the boundary 10 of the spatial region forming a sprayed fluid flow (see figure 5) is selected from the condition of minimizing the loss of kinetic energy of the jets associated with the forces of the resistance of the environment. Due to the fact that to achieve a more complete crushing of the jet must go to the place of their intersection with a maximum kinetic energy (speed), the specified length must not exceed 80 RG.

Maximum uniformity of drip flow is achieved at equidistance outlet openings of the channels 2 from the axis of symmetry 7 of the housing 1. In this case, streams intersect at a single focal plane perpendicular to the axis of symmetry 7 of the housing 1. The displacement of the outlet openings of the channels 2 with respect to the equidistant position it is possible to form a fine droplet stream with different spatial configuration.

To concentrate spray or flow in a certain spatial region and increase the effektivnosti spraying jets of fluid dispenser is supplied by the camera 9, installed behind the exit section of the channel 2 (figure 3). In the exemplary embodiment of the dispenser shown in figure 3, the camera 9 has a cylindrical shape. At the end of the fluid channel 2 at their output sections, a vacuum due to the ejection action of the jet.

In the process of flowing streams of liquid through the channels 2 in the suction gas from the environment in the chamber 9 is formed a counter gas flow, which promotes the atomization of the liquid. The increase in length Lkmore value equal to 20DK(where DK- the diameter of the cylindrical chamber 9), leads to the reduction of this effect due to the effect of friction forces. The optimal size of the camera 9 in this example, execution of the dispenser corresponds to the ratio of DK/LK=1,5.

Additional reduction of hydraulic losses of the liquid is ensured by the fact that the form 5 and 6, the tapered surfaces of the input and output sections of the channels 2 parallel and perpendicular to the axial line 4 of the channel 2. The angle of taper of the generated flame sprayed flow can be changed using body sprays with different angles of inclination of the generatrix 6 conical surface to the axis of symmetry 7 of the nozzle. The angle of taper of the flame sprayed thread changes when exposed to the region of formation of the sprayed stream W is dcosta, in which the intersection of liquid jets, axial jet of fluid, which is formed in the axial channel 8 of the housing 1 (see Fig.1-3).

Generation sprayed fine droplet stream can be carried out also by means of a spray liquid, depicted in Fig.6 and 7.

The working fluid is supplied into the cavity of the housing 15 of the spray liquid through the nozzle 19 through which the dispenser is connected to the main fluid supply.

Next, the liquid flows into the channels 12 through the inlet sections 18 having a conical shape. Using the example of the construction of the dispenser of the input conical sections 18 reduces hydraulic losses at the entrance to the channels 12 and thereby increase the flow rate of liquid streams.

Front projection intersecting centerlines 11 channels 12 intersect at an angle of 179°. Because the centerline 11 of the channels 12 in the present embodiment, the dispenser is displaced by a distance not exceeding RGin the area of formation of the sprayed fluid flow is crossing only the peripheral portions of the liquid jets. As a result, in the region of intersection of the jets of fluid (formation of the sprayed fluid flow) is the vorticity in the same way as described for option to perform the surveillance of the atomizer, depicted in figure 1-3. The resulting vortex with angular speed ω due to the action of centrifugal force destroys streams of liquid, transforming them in drops.

The running surface of the output sections of the channels 12 of conical shape in this design option allows for the intersection of the jets of fluid in the immediate vicinity of the output sections of the channels 12. In this region the kinetic energy (speed) jets close to the maximum, resulting in a more complete fragmentation of jets in the formation of a spray or stream. In addition, the conical surface of the output sections of the channels forms a cylindrical insert cavity 14, which is the intersection of liquid jets and the formation region of the vortex. Due to the interaction of sputtered liquid jets from conical surface of the insert 14 creates the possibility of concentrating the stream of fine droplets in a certain spatial region and forming a flame sprayed liquid of a given configuration.

When using the spray liquid, made according to the present invention, is generated torch fine fluid with uniform intensity and dispersion of the drops in the cross-section of flow, yielding substantial reduction in energy is sky's cost of generation sprayed fluid flow. As a result of experiments in a range of working pressure fluid 0.2÷0.5 MPa has been established with the help of spray liquid can be created stream of fine droplets of different spatial configurations with a given intensity of irrigation in large and small squares.

The invention can be used in fire extinguishing systems, and technological equipment for different purposes. Along with sprinkler systems spray liquid can be used for burning fuel in heat and power engineering and transport, as well as to hydrate the environment and spray disinfectants and insecticides.

1. The spray liquid, comprising a housing with channels for the formation of liquid jets and the socket for the supply of liquid, characterized in that the channels for the formation of liquid jets are directed so that their centerlines intersect at the output cross-sections of the channels in the spatial domain the formation of the sprayed fluid flow, the minimum distance between the intersecting centerlines of the channels does not exceed the average hydraulic radius of the cross-section of the channels.

2. The spray liquid according to claim 1, characterized in that the distance between the output sections of the channels and the area of the formation sprayed the Otok fluid, on the border of which the distance between the intersecting centerlines of the channels has a minimum value that does not exceed 80 RGwhere RG- the average hydraulic radius of the cross-section of the channels.

3. The sprayer according to claim 1, characterized in that the channels are cylindrical in shape.

4. The sprayer according to claim 1, characterized in that the angle of intersection of the frontal projections of the centerlines of the channels is 50÷70° or 150÷179°.

5. The sprayer according to claim 1, characterized in that the length of the channels does not exceed 40 RG.

6. The sprayer according to claim 1, characterized in that the nozzle body is supplied with the camera for the output sections of the channels, the camera has the shape of a body of rotation.

7. The sprayer according to claim 1, characterized in that the nozzle body provided with a cylindrical camera for the output sections of the channels, the length of the camera does not exceed twenty-fold amount equal to its diameter.

8. The sprayer according to claim 1, characterized in that the nozzle body provided with a conical chamber installed at the output cross-sections of the channels.

9. The sprayer according to claim 1, characterized in that the channels made with a tapering entrance areas conical shape.

10. The sprayer according to claim 1, characterized in that the channels made with a tapering entrance areas conoidal form.

11. RA is piltel according to claim 1, characterized in that the surface of the inlet and/or outlet cross section of the channels is made flat.

12. The sprayer according to claim 1, characterized in that the surface of the input and/or output section of the channel has the shape of a body of rotation.

13. The sprayer according to claim 1, characterized in that the plane of the output sections of the channels are angled 50÷70° to the axis of symmetry of the hull.

14. The sprayer according to claim 1, characterized in that the surface of the inlet and outlet cross-section of the channels is planar, with the plane of the input and output sections of parallel channels.

15. The sprayer according to claim 1, characterized in that the forming surface of the output sections of the channels are angled 50÷70° to the axis of symmetry of the hull.

16. The sprayer according to claim 1, characterized in that the forming surfaces of the input and output sections of parallel channels.

17. The sprayer according to claim 1, characterized in that the axial lines of the channels perpendicular to the generatrix of the surface of the output sections of the channels.

18. The sprayer according to claim 1, characterized in that the nozzle body is made of the axial channel.

19. The sprayer according to claim 1, characterized in that the channels have the same cross-section.

20. The sprayer according to claim 1, characterized in that the cross-sectional area, at least one channel exceeds the cross-sectional area of any other ka the Ala is not more than twice.



 

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2 dwg

Cascade nozzle // 2253517

FIELD: heat-and-power engineering, particularly for medium and deep water spraying in cooling towers, scrubbers, gas and steam condensing plants, gas-cleaning systems, for spraying high-viscous liquids or liquids with considerable content of impurities.

SUBSTANCE: nozzle comprises connection pipe and deflecting members formed so that cone angle of each next deflecting member is less than that of previous one. Nozzle has conical body. Deflecting members made as deflecting washers are arranged along vertical axis between at least two fixing posts. Deflecting washers have inner orifices decreasing in direction away from inlet connection pipe. Each deflecting washer is made as truncated cone. Outermost deflecting washer is of hemispheric shape and adapted for water spraying into area located under nozzle connected with pipeline by straight and adapter couplings. To increase hydraulic capacity and system flexibility cascade nozzles with lesser inlet connection pipe diameters are substituted for ones with greater diameters.

EFFECT: increased cooling efficiency, simplified structure, improved flexibility, minimizing of nozzle clogging.

4 dwg

FIELD: environmental protection.

SUBSTANCE: furnace comprises combustion chamber whose bottom section is provided with the igniter and branch pipe for supplying fuel, intermediate section is provided with the branch pipe for supplying waste, and top section is provided with the exhaust branch pipe connected with the duct for discharging flue gases. The casing is mounted around the chamber to define the air passage between the casing and outer side of the chamber. The passage is in communication with the bottom section of the combustion chamber and branch pipe for supplying fuel. The casing is provided with the air supply branch pipe. The branch pipe for supplying fuel receives at least one pair of vortex cyclonic chambers whose openings for air supply are made in opposite tangential directions.

EFFECT: enhanced environmental safety.

4 cl, 1 dwg

FIELD: irrigation equipment, in particular, fine-dispersion or drop sprinkling equipment used in mobile and stationary sprinkler units for producing of sprays with droplet sizes admissible for irrigation of wide range of farm crops.

SUBSTANCE: sprinkler unit has hollow cylindrical casing with partition wall, wherein guiding rod is rigidly fixed centrally of partition wall. Conical deflector with curved grooves is fixed on guiding rod for displacement along it. Location of conical deflector in predetermined position on guiding rod is provided by means of adjustment nut which may is fixed by lock nut. In order to form uniform liquid film around perimeter of conical deflector, grooves are provided in such a manner that they do not reach edge by distance equal to width of casing outlet opening ring, when conical deflector is lifted to maximal extent. Fluoroplastic layer is built in friction surface of conical deflector.

EFFECT: increased efficiency in producing of finely dispersed uniform spray, simplified construction and enhanced reliability in operation.

3 dwg

Contrast sprays set // 2257883

FIELD: medicine.

SUBSTANCE: invention relates to equipment for carrying out health-improving and curing hydrothermal treatment. Proposed contrast sprays set has sprays panel made of two non-communicating tubular systems consisting of collecting and operating pipes installed parallel to each other at preset angle to sides of sprays panel. Operating pipes are provided with great number of holes pointed to side of operating zone. Panel is installed on supports for reciprocating in plane of panel under action of drive.

EFFECT: provision of convenience in treatment of patient, and accurately checking of main parameters.

4 cl, 6 dwg

FIELD: spraying equipment, particularly hydrodynamics of delivery pipeline adapted to be used in different industries.

SUBSTANCE: device comprises pump, liquid vessel, barrel with control arm and flexible hoses. Barrel includes valve with grooves to provide working liquid jet bypass in reverse direction to pump inlet. Device also has means aimed at reduction of losses and minimization of force to be applied to valve control arm. More particularly, valve grooves are inclined at 60° angle one to another, device comprises collars for valve securing having outer and inner packing members with seats and providing free valve rotation about valve axis. The rotation is performed around pin with packing member. Pin diameter is considerably lesser than valve diameter.

EFFECT: simplified structure, improved performance and increased safety.

4 cl, 3 dwg

Liquid sprayer // 2258567

FIELD: liquid spraying equipment, particularly used in fire-fighting, sanitary and watering facilities, for liquid fuel combustion, etc.

SUBSTANCE: sprayer has body with channels for liquid jets forming and liquid supply nipple. The channels are directed so that axes thereof cross beyond channel outlets in sprayed liquid flow generation space. Minimal distance between crossing axes does not exceed hydraulic channel radius Rh value. Distance between outlet channel sections and sprayed liquid flow generation space defined by plane with minimal distance between crossing channel axes preferably does not exceed 80Rh. Sprayer body may be provided with chamber shaped as solid of revolution and installed beyond outlet channel sections. Axial channel may be formed in the sprayer body. Channels may have equal cross-sections. Sprayer in accordance with the second embodiment has one channel with cross-sectional area, which is not more than 2 times greater than that of another one.

EFFECT: increased uniformity of droplet intensity and dispersion over flow section, reduced energy consumption.

1 cl, 7 dwg

FIELD: spraying or atomizing.

SUBSTANCE: device comprises housing with the lid provided with even number of nozzles and disk deflector provided with odd number of ring recesses. Each ring recess has central corner that overlaps the outlet openings of adjacent nozzles.

EFFECT: improved design.

5 cl, 8 dwg

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