Magnetic hydraulic pulser

FIELD: machine building.

SUBSTANCE: invention is related to hydraulic machine building in terms of renewable power sources. A hydraulic pulser comprises a feed line 1, a guide vane 2 with blades 3 forming centripetal drain channels, blades set above the said channels and forming centripetal pressure channels 6, and an impeller 8 with blades 10 forming drain and pressure centripetal channels 11 and 14 of a hydroturbine stage of the impeller is mounted on a shaft 22, the channels 11 lead out to the diffuser of a draft tube 26 with the radial blades of centrifugal pressure pump impeller stage being set above the channels 14. Electromagnets are set in the blades of the guide vane 2. The electromagnet windings are connected to a current source via a current reverse switch 32, the current source is installed on a common shaft 22 with a low-speed generator 31. The generator 31 contains a rotor position sensor. Permanent magnets 16 are installed in the cavities forming channels 11 and 14 of the impeller 8.

EFFECT: invention is aimed at the provision of improved output parameters and possibility to change the supply and head of fluid at the hydraulic pulser output.

2 cl, 7 dwg

 

The present invention relates to the field of hydro in the part of renewable energy sources and can find application in systems and installations for water supply, irrigation, drying, increase the pressure on the micro - and minges, water accumulation in marine gateways, and so on

In the present invention, improved known design geroulanos containing a supply, a guiding apparatus, a turbine impeller, a discharge outlet, a discharge pipe, as well as radial and axial support for the shaft of the impeller (see, for example, F. C. konradi "Hydropulse Tashkent 1939, and hydropulse by author's certificates and patents of the USSR class 59, 17 №24710, №65722, №18057, №79816 and others).

Also known construction hydropulse containing a supply, the guide device with the blades forming the centripetal drainage channels placed over these channels blades, forming a centripetal pressure channels, and mounted on the shaft of the impeller with blades forming drain and pressure centripetal channels turbine speed of the wheel, and the output of the drain channels are in the cone draft tube and placed over the discharge channels of the radial blades of the centrifugal pressure pumping speed of the wheel (see the patent for the invention №2457367 06.07.2010,).

Specified instrukciya of hydropulse can be adopted for the base object.

The design flaws of the specified base object are:

1) Unattainability or uncertainty desired output parameters hydropulse (feed pressure and flow rate), especially when limited to low-altitude backwater of the water column at the entrance to hydropulse, because you may not have enough power two centripetal turbine-speed radial-flow impeller to ensure reliable operation of its centrifugal pump stage and a pulse of fluid to the wheel.

2) the Inability to change the output parameters in the same design forms and sizes hydropulse.

The task, which is aimed by the invention, provides for eliminating these disadvantages, i.e., providing increased output parameters, and possible changes in the flow and pressure of fluid at the outlet of hydropulse.

The solution of the problem is due to the fact that hydropulse containing a supply, the guide device with the blades forming the centripetal drains placed over these channels blades, forming a centripetal pressure channels, and mounted on the shaft of the impeller with blades forming drain and pressure centripetal channels turbine speed of the wheel, and the output of the drain channel is performed in the diffuser suction pipe is placed over the discharge channels of the radial blades of the centrifugal pressure head of the pump stage wheels:

in the guide vanes placed magnets, windings are connected through a switch reverse current from a power source mounted on a common shaft with the low-speed generator that contains a position sensor rotor, and the blades forming the drain and outlet channels of the impeller, installed permanent magnets;

- installed in the blades of the impeller permanent magnets mounted on the axles with the possibility of turning around them.

The specified device design, due to the force interaction (attraction and repulsion) of the electromagnets (EM), placed in the guide vanes (ON), permanent magnet (PM) hosted by the blades of the impeller (RK), provides increased torque on RK, and hence increase output parameters (pressure and flow) of magnetohydrodynamic. The conversion of the energy of electromagnetic and magnetic fields in EM And PM into mechanical energy of rotation of the wheel magnetohydrodynamic is ensured by the inhomogeneity of the magnetic field and switching them in time and space through the use of rotor position sensors (blades RK).

The attractive force of the magnet depends on its magnetic flux, which is defined structurally by the quality of its magnetic circuit and the number of turns of the winding in which aktivnosti, as well as the amount of current flowing through the windings of EM.

Change the output settings in magnetopolaron, structurally designed in shape and size the same, can be done by changing the parameters of their constituent structural elements:

the use of the improved ferromagnetic steels (containing neodymium, boron, tungsten, and so on) for the cores of the windings EM, located in the blades ON the reduction of air parcels between EM and PM to increase the magnetic permeability of the chain and, consequently, reduce the magnetic resistance;

- increase the number of turns of the windings of the electromagnets on the same length of second or even third row, because the greater the number of turns of the winding, the greater this current is created around this winding magnetic field, because it is composed of the magnetic fields of each coil;

- use power sources (batteries for example) with a higher voltage to increase the current in the windings of EM, which will increase the force of attraction (repulsion) of EM and their magnetomotive force (equal to the product of the current by the number of turns of the winding).

When the rotation of the Republic of Kazakhstan in ON the strength of the mutual shift of EM And PM, the original United unlike poles among themselves, much less than the force required for separation of these magnets from each other in a straight line.

Cu is IU, instead of the usual EM to increase the forces of mutual attraction and repulsion of EM And PM may use polarized electromagnets (combination of EM and PM with pole extension with the windings).

And smooth control magnetomotive force EM in the blades ON, and hence the regulation of hydraulic parameters at the output of magnetohydrodynamic possible change of current in the windings EM governing its device.

When placing the blades ON, for example, two electromagnets, to prevent their interaction is established between the magnetic shield.

In known constructions of geroulanos rotating radial-axial turbine impeller directs the flowing fluid in the drain, the pressure in the cavity due to the fact that Francis centripetal channels wheels are opened alternately up and down. When opening the channels down the liquid with the free discharge to the lower reaches some maximum speed at which the rotating impeller turning at a certain angle, closes the drain channels and opens facing upward pressure channels.

Thanks to the acquired momentum of the fluid is directed through outlet ports in the discharge line, lifting up into the liquid. Due to the work performed under the enterprises and energy loss of pressure in the supply decreases, water comes to rest and would flow from the pressure cavity back, if at this time due to the rotation of the impeller has not occurred closing the discharge channels and the opening of the drain channels.

Described processes are continuously repeated, and the liquid in the inlet system hydropulse (pipe and supply, for example, spiral) pulsates between higher and lower speeds without shock (unlike hydrocarbon).

However, a significant positive difference between the proposed design magnetohydrodynamic is increased upornosti supplied to the consumer of fluid flow (with the same diameters of known structures) due to the enhanced torque, attached to RK, formed by addition of the hydraulic forces on the blades of the two centripetal turbine stages RK and magnetomotive forces between EM the blades ON and PM in the blades of the Republic of Kazakhstan.

To power the inductive windings of EM can be used batteries, accumulators or low-speed low-power generators (for example, 15÷100 Rev/min, 10-20 volts) installed on the shaft of magnetohydrodynamic. In this case, can be used, for example, contactless DC generators (rotor with a permanent magnet) with a position sensor rotor (e.g., inductive), made in one body with the generator (or separately n common shaft and designed to produce signals for controlling the time and sequence of switching currents in the windings. These switches reverse the direction of current in the windings of EM are installed on the shaft of magnetohydrodynamic and when using batteries DC.

When this power is taken by the generator shaft magnetohydrodynamic, much less power, the generated magnetomotive force between EM the blades ON and PM in the rotating blades of the RK.

To increase the magnetic permeability chain EM-PM between them in their locations in the blades and the blades RK are the thin walls of non-magnetic materials (stainless steel, titanium and so on).

In the case of manufacturing blades and blades RK entirely of nonmagnetic materials (such as composites, fiberglass, etc.,) the necessity of separately specified partitions disappears.

In addition, to ensure better interaction between EM and PM during the rotation of the Republic of Kazakhstan in his blades, PM mounted on the axes with the ability to turn around its poles toward (or opposite) of the opposite (same) poles EM.

To increase develop magnetopolaron pressure and the fluid, it can perform additional centripetal pressure of the number of blades ON with electromagnets and the corresponding number of blades RK with permanent magnets, the interaction of the magnetic fields which will increase the torque PTO is t RK.

Using the proposed design magnetopolaron with increased parameters of pressure and flow at the output improves reliability and increases efficiency at the same parameters of the supply liquid, as in the known constructions of geroulanos same dimensions.

Thus, the claimed design magnetohydrodynamic has technical advantages in comparison with known designs geroulanos.

Data supporting the validity of achievements solve this problem the invention described in technical literature (see, for example, Lorenz and E. Prager "Taran and hydropulse", B. N. Rostovtsev "Utilization of small drops of water" edition of the A. F. of deviana Petrograd 1916, F. C. konradi "Hydropulse Tashkent 1939 Dudyshev C. D. "the Phenomenon of direct conversion of the energy of the magnetic fields of permanent magnets into other forms of energy New energy 3/2004 g, Caulin C. D. and others "Brushless motors low power" L. Energoizdat 1988 and others).

The invention is illustrated by drawings of the claimed design hydropulse in Fig. 1-7.

In the drawing of Fig. 1 shows a vertical section of magnetohydrodynamic. In the drawing of Fig. 2 shows:

- section (a-a, right side) pressure centrifugal channels of the pump stage RK (upper right quarter of Fig. 2) and the pressure centrotrade the additional channels turbine stage RK (lower right quarter of Fig. 2).

- section drain centripetal canals turbine stage RK (b-B left) - the left half of Fig. 2.

In the drawings, Fig. 3 (vertical sectional view) and Fig. 4 (horizontal section) shows the upper blade guide vanes placed in them by the electromagnets and the upper lobe of the centripetal stage impeller with installed movable permanent magnets.

In the drawings, Fig. 5 (vertical sectional view) and Fig. 6 (horizontal section) shows the lower blade guide vanes placed in them by the electromagnets and the lower blades of the centripetal stage impeller with installed movable permanent magnets.

In the drawing of Fig. 7 shows a sequence diagram of alternating magnetic poles of the electromagnets of the stator (guide vanes) and permanent magnets of the rotor (impeller) in the gap between them for 1 turn the upper blades of the impeller. This magnetohydrodynamical includes:

supply 1 (for example, spiral);

- guide apparatus 2 with vanes 3, forming a radial drain channels 4, is placed over these channels 4 blades 5, forming a centripetal pressure channels 6. The guide apparatus 2 installed in the spiral supply 1 on a support 7;

- impeller 8 with the leading disk 9 and the implementation is built on it lower main blades 10, forming a centripetal turbine drain channels 11 are located in the additional blades 12 and the upper main blades 13, forming a centripetal turbine outlet ports 14, placed in them additional blades 15. The blades 10 and 13 posted by permanent magnets 16 on the axis 17 with the possibility of turning around them. On closing the top of the impeller wall 18, bottom made of the centrifugal pumping channels 19 formed by the blades 20;

- pressure outlet 21 (e.g., spiral) are made in one body with inlet 1;

the shaft 22 of the impeller mounted in anti-friction bearings 23 and rests fifth 24 on the axial bearing 25. Radial and axial sliding bearing is lubricated by the liquid;

- suction pipe 26 to drain the fluid from the drain channels 11 of the impeller 8 mounted on the support 7;

- in the blades 3 and 5 of the guide vane 2 is installed electromagnets 27, separated magnetic screens 28;

between the electromagnets 27 and the blades 3 and 5 and the permanent magnets 16 in the blades 10 I made thin walls 29 and 30 of non-magnetic materials;

- on common shaft magnetohydrodynamic installed low-speed power generator 31 that contains the position sensor rotor and connected with the switch reverse current 32 in the winding of electromagnetic who itov 27.

When hydropulse liquid of the upstream (intake) pools under pressure is fed through a pipe to supply 1, which falls into the guide device 2 and passes between the blades 3 in the drain channels 4 and between the blades 5 into the discharge channel 6.

From the drain channels 4 stationary guide vanes 2, the liquid is fed to the blades 10 and 12 of the turbine speed of the impeller 8, causing it to rotate, then passes through its drain channels 11 in the suction pipe 26.

In this position of the impeller 8 is located above the drain channel 4's pressure centripetal channels 14 is blocked at the input of the fixed upper blade 5 of the guide vane 2.

During rotation of the impeller 8 to the width of its main rotor blades located at the bottom of the drain channel 11 overlap at the input of the fixed lower blade 3 guide vanes 2 and open it located above the pressure centripetal channels 14, after which the liquid flow channels 6 of the guide vane 2 hits on the blade 13 and 15 of another turbine stage impeller 8, also causing it to rotate, and then passes into the centrifugal pumping channels 19 formed by the blades 20.

In the specified position of the impeller (open top pressure centripetal channels 14) is installed is at the top of the blades 5 of the guide vane 2 electromagnets 27 because of a certain direction of the current at this point in their windings (which is achieved by switching the switch current reverse from the position sensors rotor) interact with its electromagnetic field with the magnetic field of the permanent magnets 16 installed in the blades 13.

There is always directed forward in the direction of rotation of the South pole S of the permanent magnets 16 are attracted to the North poles N of the electromagnets 27, turning around its axis 17 to them and creating directed along the rotation axis 17 of force, in addition to hydraulic forces on the blades, also aimed in the direction of rotation, and forming a reinforced torque on the impeller of magnetohydrodynamic. At the time of coincidence of opposite magnetic poles in the gap between the electromagnets of the stator guide vanes 2 and the permanent magnets of the rotor - impeller 8 changes the direction of the current in the windings of the electromagnets and the magnetic poles in the gap be the same, resulting in the forces of magnetic repulsion, the rotor receives again the moment in the course of its rotation. Area moments of switching the direction of the currents of the windings ("dead" pixels) large rotor passes without jumps moment of inertia and under the influence of hydraulic forces on the blades of the impeller.

In moments of changing the direction of current in the windings of the electromagnets 27 permanent magnets 16 due to the joint interaction of their magnetic fields rotate around their axis 17 so that their mA the magnetic pole become mutually same or opposite to the poles of the electromagnets in the gap between them.

Moreover, when changing the speed of rotation of the impeller 8 is automatically changed and the frequency of reversals of the electric current in the windings of the electromagnets due to the presence of this Electromechanical system connection through the switch and the sensor rotor position.

Continuous alternating forces of attraction and repulsion of the poles of the electromagnets and permanent magnets in different parts of the trajectory of a complete revolution of the impeller provides enhanced, in addition to hydraulic, torque on the rotor and, consequently, increased hydraulic parameters at the output of magnetohydrodynamic.

After centrifugal pump stage impeller 8, the liquid enters the spiral discharge outlet 21 and then into the discharge pipe.

The impeller 8 is installed on the shaft 22 which rotates in anti-friction radial slide bearing 23 and rests fifth 24 on the axial bearing 25, lubricated by the pumped liquid.

Draining from the drain channels 11 of the impeller 8 occurs through the suction pipe 26.

Thus, the proposed design magnetohydrodynamic has practical value and can create technical and economic effect in the implementation of renewable hydraulic energy sources, helping to solve the problems of energy saving.

1. Hydropulse, containing the s supply, the guide device with the blades forming the centripetal drains placed over these channels blades, forming a centripetal pressure channels, and mounted on the shaft of the impeller with blades forming drain and pressure centripetal channels turbine speed of the wheel, and the output of the discharge channels is made in the diffuser suction pipe is placed over the discharge channels of the radial blades of the centrifugal pressure pumping speed of the wheel, characterized in that the guide vanes placed magnets, windings are connected through a switch reverse current from a power source mounted on a common shaft with the low-speed generator that contains a position sensor rotor, and the blades forming the drain and outlet channels of the impeller, mounted permanent magnets.

2. Hydropulse under item 1, distinguishing those that are installed in the blades of the impeller permanent magnets mounted on the axles with the possibility of turning around them.



 

Same patents:

Hydraulic ram // 2536411

FIELD: engines and pumps.

SUBSTANCE: hydraulic ram comprises water source 1 parted by the web with tubular pipe 3. The latter is connected with accumulation chamber 4 accommodating curved rotary gate 5 with float 10 to shut off the outlet of pipe 3 aligned with open inlet 14 of feed pipe 13. Gate 5 has outlet 11 arranged at its bottom and shutoff by check valve 12 of the side of pipe 3. End of feed pipe 13 has chamber 17 to accommodated air cap 35 and impact valve 18. Said valve 18 makes a throttle connected with float 19 in adjustment chamber 26 Said web is arranged on the side of discharge pipe 27 and composed of suction board 29 that allows its adjustment to develop required difference between levels.

EFFECT: higher efficiency and reliability, fast response, lower drag in hydraulic drive.

3 cl, 2 dwg

FIELD: motors and pumps.

SUBSTANCE: method of air inflating into air case 5, 6 of hydraulic ram pump consists in that air is supplied into the working camera 11, 12 of the working section 3, 4 of the supply pipeline connected with the air case 5, 6, and air flow rate through the air duct tube 13, 14 is monitored, one end of which is connected with the active nozzle 9, 10 of the working camera 11, 12, and another one - with atmosphere. At the moment of achieving of preset air volume in the case 5, 6, corresponding to the pressure head operating mode, air supply is stopped. Air source is designed as an air trap camera 21, 22, with the working camera 11, 12 and by means of the water discharge tube 31, 32, with the executive unit 33, 34 with the valves 35, 36 with the air case 5, 6. The end of the supply pipeline is located in front of the case 5, 6.

EFFECT: increase of hydraulic ram pump output.

2 dwg

Hydraulic ram // 2529277

FIELD: construction.

SUBSTANCE: hydraulic ram comprises a feeding reservoir 17, a supplying pipeline 1, a body 2, a water-air cap 3 with a valve and a slide valve 4, an impact valve 6, made in the form of a sphere and placed on a stem, an injection check valve 7, a loading pipeline 16 with an overflow valve 14 and a hydraulic cylinder 11. The injection cavity 15 of the valve 14 is connected to the pipeline 16. The stem of the valve 6 is simultaneously a through stem 10 of the hydraulic cylinder 11 piston. The loading cavity 12 of the hydraulic cylinder 11 is connected to a drain hole 13 of the valve 14. The unloading cavity 18 of the hydraulic cylinder 11 is connected to atmosphere. The diameter of the hydraulic cylinder and travel of the impact valve are determined according to formulas.

EFFECT: provision of regulation in automatic mode and maintenance of maximum efficiency.

1 dwg, 1 tbl

Hydraulic ram // 2528795

FIELD: machine building.

SUBSTANCE: hydraulic ram comprises a delivery pipeline 1 with a dart valve 39 and a delivery branch pipe 29, 30, a cap 25, 26 divided by a partition wall 45 made as a grid into two chambers, springs 42. Balls 44 made from soft elastic material filled by incompressible medium are set in the chamber 25, 26 on the side of the cap top. A case with staggered cells with longitudinal and transverse partition walls 40 and 41 is fixed in one of the chambers on the side of the cap top. The cells are fitted by an adjusting member set inside and made in the form of springs with a flat plate 43 installed so that it is able of contacting with the ball 44.

EFFECT: increased reliability, operability and efficiency factor.

2 cl, 3 dwg

Hydraulic ram // 2527260

FIELD: engines and pumps.

SUBSTANCE: hydraulic ram comprises feed pipe 1, impact valves 10 and 11, two hydraulic cylinders 8 and 9, and overflow pipe 32. Besides, this ram comprises vacuum pumps 28 and 29 and membranes 13 and 14 to be separated hydraulic cylinders 8 and 9 intercommunicated via overflow pipe 32 with valve 34. Ends of pipe 32 are equipped with bellows 33. Impact valves 10 and 11 of both membrane cylinders 8 and 9 are connected by rocker 19 with rods 17 and 18 articulated with vertical strut 21. Membranes 13 and 14 with stiff pin are coupled with impact valves 10 and 11 fitted in vertical pipes 6 and 7 secured at feed pipe 1.

EFFECT: controlled operation, higher reliability and efficiency.

3 cl, 1 dwg

Hydraulic ram // 2521821

FIELD: engines and pumps.

SUBSTANCE: hydraulic ram comprises feed pipeline, case shaped to air cap with intake valve and hammer valve. This ram comprises open adjusting tank with drain pipe and hammer valve. Second hammer valve is arranged in intake vertical overflow pipe communicating both tanks. Second hammer valve is engaged by float-type articulation-leverage drive arranged inside the tank. Both hammer valves are arranged parallel with feed pipeline.

EFFECT: perfected design.

3 cl, 1 dwg

FIELD: machine building.

SUBSTANCE: invention relates to the field of technical hydraulics. A hydraulic pneumatic ram comprises a working chamber with impact and injection valves, a discharge cap, connected with a water receiver, a discharge air duct. The hydraulic pneumatic ram is equipped with an impact valve, a pneumatic chamber connected by a pneumatic line with an air distributor. The air distributor at one side is kinematically connected to a float hinged-lever drive arranged in a control reservoir, and at the other side - with a pneumatic line with the cavity of the discharge cap via a check valve, installed as capable of opening on the stroke of injection of spent air from the pneumatic chamber. The stem of the impact valve is made with an adjustment bushing and with a limiter, and the pneumatic chamber is made with a membrane working element with a stiff centre related to the stem.

EFFECT: invention increases accuracy of control of impact valve operation mode.

3 cl, 2 dwg

Hydraulic ram // 2489605

FIELD: engines and pumps.

SUBSTANCE: hydraulic ram comprises pressure pipeline, air chamber with inlet valve communicated with said pipeline, piston fitted in casing and piston stroke limiter. Said piston is secured to rod. Hydraulic ram comprises hydraulic drive composed of interconnected piston-type one-way servo-motor and throttle valve. Piston fitted in cylinder is arranged parallel with pressure pipeline. Impact valve hinge pin is located between pipeline axis and pipeline wall.

EFFECT: higher efficiency of hydraulic rams.

Hydraulic ram // 2489604

FIELD: engines and pumps.

SUBSTANCE: hydraulic ram comprises feed pipeline with impact valve, air chamber with pressure valve and branch pipe and cylinder with piston. Feed pipeline is furnished with flow switch with guides for impact valve, nozzle with outlets and working sections, each being communicated with flow switch.

EFFECT: higher efficiency, expanded applications.

Hydraulic ram // 2489603

FIELD: engines and pumps.

SUBSTANCE: hydraulic ram comprises feed pipeline, working chamber, impact and delivery valves, air chamber and intake vessel communicated via pipe with working chamber. Extra pipe is arranged parallel with feed pipe. Hydraulic ram is equipped with closed water intake chamber with drain pipe fitted therein. Impact valves are arranged at discharge pipes and connected with control device composed of rotary drive made up of two-arm lever. Arms of said lever are pivoted via links with upper two-arm lever fitted at rotary handle pin. Impact valves are shaped to circle arcs, their diameters being equal to branch pipe appropriate outlets. Center of curvature of said arcs is located at control mechanism axle to cover branch pipes of appropriate housing working chambers in turns.

EFFECT: higher reliability and efficiency.

Turbopump set // 2534188

FIELD: engines and pumps.

SUBSTANCE: set comprises two pumps connected by shafts using a splint joint. A turbine wheel is fixed on the first shaft. On the shaft of the second pump there is an unloading piston of an automatic axial force unloading device limited by a radial seal in the peripheral part and having at both sides cavities of high and low pressure. The shaft of one pump with a support end rests against the support end of the second pump shaft. The second pump comprises an auger installed upstream its centrifugal impeller. The high pressure cavity is connected to the outlet of this pump via a pressure controller, comprising a throttle and a control stem contacting with the end of the shaft of this pump. The low pressure cavity is connected to the cavity between the auger and the impeller of this pump.

EFFECT: improved cavitation characteristics of one of pumps.

3 cl, 5 dwg

Turbopump unit // 2533595

FIELD: engines and pumps.

SUBSTANCE: invention relates to turbomachinery, particularly to high-rpm high-pressure rotary pumps to be used in turbopump units of liquid-propellant rocket engines. Turbopump unit consists of the turbine and pump working wheels of which are fitted on common shaft running in bearings, and seals separating the cavity of one of bearings from pump and turbine. Said cavity is connected with working wheel outlet cavity via shaped channels, their inlet is arranged at acute angle to working fluid peripheral speed.

EFFECT: reliable operation in liquid-propellant rocket engine, higher efficiency.

7 cl, 2 dwg

FIELD: engines and pumps.

SUBSTANCE: invention can be used in rocketry, turbopump units of liquid-propellant and nuclear rocket engines. Turbopump unit comprises pump 1, turbine 2 running in bearings 4 and 5, shaft 3 supporting turbine 2 wheel 6 and impeller 7, case 8, separation chamber 9 with shaft 3 seals 10 and 11, chamber 12 arranged downstream of seal 11 between separation chamber 9 and pump 1, and chamber 13 downstream of impeller 7. Seals 10 and 11 separated turbine 2 chamber from pump 1 chamber. Separation chamber 9 is connected with high-pressure chamber 13 via channel 14. Chamber 12 behind seal 11, between separation chamber 9 and pump 1, is integrated with chamber 13 downstream of impeller 7.

EFFECT: higher reliability of engine starting owing to improved cavitation properties of the pump.

6 cl, 4 dwg

FIELD: engines and pumps.

SUBSTANCE: set of inventions relates to turbopump units of liquid-propellant rocket engines and nuclear rocket engines. Turbopump unit comprises pump 1, turbine 2, shaft 3 running in ball bearings 4, wheel 6 of turbine 2 and impeller 6 fitted on shaft 3, housing 8, separation chamber 9 with shaft seals 11 on the side of pump chamber and chamber ahead of turbine wheel 6. Separation chamber 9 is connected via channel 12 and external discharge pipeline 13 with engine main line wherein pressure is lower than that inside turbine 2. External pipeline 13 can be connected with gas circuit downstream of turbine 2, with line feeding fluid to pump 1 and lined feeding fluid into engine. Separation chamber 9 can be communicated with gas circuit downstream of turbine via channel or channels in shaft 3 and turbine wheel 6.

EFFECT: higher reliability and efficiency.

5 cl, 2 dwg

FIELD: engines and pumps.

SUBSTANCE: turbopump comprises housing (4) with working chamber (9), shaft (7) with external drive, impeller fitted on shaft (7) and aligned therewith inside said chamber (9). Impeller comprises first and second discs (1, 2) aligned with axial clearance there between and having inlet holes (6) at central area. Impeller has first inlet of fluid (5) for axial feed to axial clearance between said first and second discs (1, 2) via inlet of first disc (1). Impeller has second inlet of fluid for axial feed to axial clearance between said first and second discs (1, 2) via inlet (6) of second disc (2). Besides, it has outlet for discharge of first and second fluids from working chamber (9) periphery. Said impeller comprises extra mid solid disc (3) fitted aligned between discs (1, 2) and with clearance there between and discs (1, 2). OD of mid disc (3) is smaller than OD of discs (1, 2) and larger than that of outer circle on inlets (6) of discs (1, 2).

EFFECT: simple design, lower production and operating costs, power saving, higher reliability.

10 cl, 4 dwg

FIELD: engines and pumps.

SUBSTANCE: turbo-pump unit includes a turbine assembly comprising a steam inlet housing, a nozzle block with inclined convergent-divergent nozzles, a turbine having a shaft with a runner, and a waste steam outlet housing located downstream of the turbine. The steam inlet housing is equipped with a supply connection pipe and a header including an axisymmetrical annular cover, the larger part of which has the shape of a tore or toroid fragment. The header is attached to the nozzle block disc. The nozzles of the block are made in the disc in the amount of 8÷15, are located radially at equal distance with their longitudinal axes from the turbine axis and equally spaced in a circumferential direction at equal angles determined in the range of (24÷45)°. Longitudinal axis of each nozzle is located in a conditional plane parallel to the turbine shaft axis normally to the turbine shaft axis, normally to radius and inclined in the above plane at an angle to the conditional plane of the disc in the direction opposite to rotation vector of the turbine runner at an angle of (12÷25)°. The pump assembly of the unit includes a pump housing with a screw centrifugal impeller.

EFFECT: increasing service life, improving compactness, efficiency and reliability of the unit and medium pumping effectiveness at simultaneous reduction of material consumption.

19 cl, 6 dwg

FIELD: engines and pumps.

SUBSTANCE: pump housing includes pumped medium inlet and outlet housings and a projection-shaped rear annular element, which together form a flow cavity for arrangement of a screw centrifugal impeller of a closed type and an automatic rotor axial unloading mechanism. Blades of the impeller are of different length and variable height as to length, which decreases towards the impeller outlet with observance of a quasiequality condition of the cross sectional area at an interblade channel inlet. Number of blades at the outlet is divisible and exceeds at least by two times the number of blades at the impeller inlet. Active volume of dynamic filling of a set of interblade channels of impeller is provided with possibility of releasing to flow part of (4.7÷45)×10-5 m3/rpm of pumped liquid per revolution of impeller. The automatic axial unloading mechanism includes adjacent annular shoe and belt, which form an end slot seal. The seal provides a self-adjustable flow of the pumped medium from the high pressure zone to the low pressure zone through overflow openings in the main disc and creates pulsating change of axial rotor unloading force.

EFFECT: increasing service life, improving reliability, compactness and operating efficiency of a pump assembly and an automatic axial unloading mechanism at simultaneous reduction of material consumption.

12 cl, 2 dwg

FIELD: engines and pumps.

SUBSTANCE: turbo-pump unit includes a turbine assembly comprising steam inlet and outlet housings, a nozzle block and a turbine. The unit includes a pump assembly comprising a housing with a screw centrifugal impeller of a closed type. The pump housing includes inlet and outlet housings and a projection-shaped rear annular element, which together form a flow cavity for arrangement of the impeller and an automatic rotor axial unloading mechanism. Blades of the impeller are of different length and variable height as to length, which decreases towards the impeller outlet with observance of a quasiequality condition of the cross sectional area at an interblade channel inlet. Number of blades at the outlet is divisible and exceeds at least by two times the number of blades at the inlet. Active volume of dynamic filling of a set of interblade impeller channels is equal to (4.7÷45)×10-5 m3/vol of pumped medium. A spiral tap of the pump assembly is made in the form of a two-way volatile with difference of surface areas of outlet and inlet sections of channels, which is related to the channel length, with an expansion gradient in swirling direction, which is accepted based on a quasiequality condition of velocities of flows in each channel of the volatile.

EFFECT: increasing service life, improving compactness, efficiency and operating reliability of the unit and medium pumping effectiveness at simultaneous reduction of material consumption.

18 cl, 7 dwg

FIELD: engines and pumps.

SUBSTANCE: turbo-pump unit includes turbine, support and pump assemblies. The turbine assembly includes steam inlet and outlet housings, a nozzle block and single-stage turbine. The pump unit includes a pump housing, a screw centrifugal impeller and an automatic rotor axial unloading device. The impeller s made in the form of a screw and a multiturn centrifugal pump of a closed type, which are combined. Blades of the latter are of different length and variable height as to length, which decreases towards the impeller outlet with observance of a quasiequality condition of the cross sectional area at an interblade channel inlet. Number of blades and interblade channels at the outlet is divisible, and exceeds at least by two times the number of blades and channels at the inlet. The screw is multiturn and has spiral blades and a hollow shaft; besides, it is equipped with smooth expansion in a transient zone of the screw channel to the multiturn channel of the centrifugal wheel. Screw blades have variable radius and/or pitch of spiral swirling and have a certain average gradient of swirling pitch increase.

EFFECT: increasing service life, improving operating reliability of a unit and pumping effectiveness of different liquid media to a consumer at simultaneous reduction of material consumption and improving compactness and efficiency of the unit.

19 cl, 7 dwg

FIELD: engines and pumps.

SUBSTANCE: turbine assembly of the unit includes a working medium - steam supply housing, a nozzle block with inclined nozzles, a turbine having a shaft with a runner, and a waste steam outlet housing located downstream of the turbine in the steam flow direction. The steam supply housing is equipped with a header including an axisymmetrical annular cover having the shape of a flattened fragment of a tore or a toroid. The turbine runner us made at least of one disc with blades. Blades are convex-concave as to width and have radial height comprising (0.05÷0.25) of the disc radius. The blade thickness is variable in the direction of steam flow with maximum in the middle part of the blade chord width. The chord width of the blade in the projection to a conditional chord plane attaching inlet and outlet side edges of the blade does not exceed radial height of the blade. The nozzles are made in the disc in the amount of 8÷15, located radially at equal distance with their longitudinal axes from the turbine axis and equally spaced in a conditional circumferential direction at equal angles determined in the range of (24÷45)°. Total number of blades exceeds by 2.6÷34.4 times the number of nozzles.

EFFECT: increasing service life, improving reliability and operating efficiency of a turbine assembly at simultaneous reduction of material consumption and improving compactness of the assembly.

9 cl, 3 dwg

FIELD: transport.

SUBSTANCE: flying collector for atmospheric water includes main fabric canvas, boundary toroidal balloon attached to it, rope bracing of attachment to lifting aerostat and captive cable. Main fabric canvas of collector is made as surface of rotation with increasing generatrix inclination to plane perpendicular to axis of rotation when approaching to this axis. Interior of boundary toroidal balloon and lifting aerostat is connected by fabric tube with valve. stiffness of structure is provided by boundary toroidal balloon supercharged with gas from lifting aerostats.

EFFECT: portable and quick-deployable device can be used in liftable and high-mountain parts of renewable energy and fresh water sources.

2 dwg

Up!