Regulated 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, the channels 11 lead out to the draft tube 26 with the radial blades of centrifugal pressure pump impeller stage being set above the channels 14. The output diameters of the impeller blades in the centrifugal pump stage are less than the outer diameters of the impeller blades in centripetal hydroturbine stage.

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

4 cl, 6 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, Lorenz and E. Prager "Taran and hydropulse", "publication of the mutual Fund students of the Polytechnic Institute of Emperor Peter the Great. Petrograd 1915", and hydropulse by author's certificates and patents of the USSR class 59S, 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 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, the radial blade centrifugal n is pornoi pumping speed of the wheel (see patent for invention No. 2457367 06.07.2010,).

This design 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 regulate flow flows into the drain and discharge channels of turbine stages impeller hydropulse that, accordingly, does not allow one to adjust the output parameters.

The task, which is aimed by the invention, provides for eliminating these disadvantages, i.e., providing the calculated output parameters and the possibility of regulating 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, obrazowe and centripetal pressure channels, and 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 suction pipe, is placed over the discharge channels of the radial blades of the centrifugal pressure pumping speed of the wheel, while

- output diameters of the wheel blades of a centrifugal pump stage is made smaller than the outer diameter of the blades of the impeller centripetal turbine stages;

in the suction pipe drain hydro turbine stage impeller is made of upper and lower diffusers, forming an annular ejector, hydraulically connected with the upper water intake of hydropulse;

- to exit the bottom of the cone draft tube turbine centripetal drain stage impeller mounted impeller propeller turbines;

- in drain channels guide vanes are pivoted vanes;

- pressure in the channels of the guide vane posted by ejecting nozzle and the inner surface of the discharge channels congruent repeat the outer surfaces of the nozzles with the narrowing of the space between the surfaces to a common output. The specified device structure according to claim 1. the formula of the invention provides calculations, manufacturing and services what time in the same hydropulse necessary wheels from a range of impellers centrifugal pump stage with external output diameters, consistently reduced (such as turning) compared with external input diameters of the blades of the drain and the pressure side of the impeller centripetal turbine stage, which gives the opportunity to regulate the pressure and flow rate at the output of hidraulicar.

Placing an annular ejector in the suction pipe drain hydro turbine stage impeller formed by the upper and lower cones and hydraulically connected with the upper downstream end of the catchment, due to additional regulated (for example, a valve in the inlet pipe) flow rate of water discharged from the upper water intake in the ejector in the lower diffuser suction pipe leads to the ejection flow, merging through the suction pipe, creating adjustable lowering the liquid level in the downstream around the suction pipe, allowing the drain water turbine stage operates at a somewhat higher changeable pressure, which increases its power (see, for example, N. M. Shchapov. "The turbine equipment of hydropower plants" Gosenergoizdat M-L, 1961, pp. 156-157).

Installation at the outlet of the suction pipe of the impeller, for example, propeller (or centrifugal) turbines provide mechanical connection of the axle shaft with a common shaft hydropulse allows additional ispolzovatblizhny energy flow, coming out of the draft tube, and increase the drive power rotation hydropulse.

And the device is turning vanes in the discharge channels of the guide vanes, like the guide vanes of the turbines, synchronously rotatable General regulatory ring (see, for example, N. N. Kovalev. "Turbines", L.:engineering, 1971, page 208, 211, and others) allows you to adjust the flow rate of the flow in the drain channels impeller hydropulse, while allowing the redistribution of input streams of liquid to regulate the flow rate and the flow in the pressure centripetal and centrifugal, the channels of the impeller, which determines the possibility of regulating the output parameters of hydropulse.

Accommodation in discharge channels of the guiding apparatus ejecting nozzles (for example, the nozzle of Laval), you can convert a pressure applied thereto stream dynamic pressure and the execution of the surfaces of the pressure channels congruent outer surfaces of these nozzles to provide the ejection flow of the pressure channel guide vanes in the discharge channels of the impeller, increasing the output pressure of hydropulse. Supply to the nozzles of the regulated pressure flow can be carried out by selecting from the output of the pressure pipe hydropulse in the annular pipe around its body, (e.g. the, 3x- way valve), and then through radial pipes from it to each nozzle.

Such a device is especially useful in cases when hydropulse generates excess fluid and pressure it is not enough to supply the required height.

The positive difference of the proposed design of hydropulse from known structures with the same outer diameter (e.g., guide vanes) is the possibility of increasing the flow rate or pressure of the output stream due to the fact that the power developed two centripetal steps (especially the drain due to the increased flow of fluid through it) hydraulic drive hydropulse exceeds the power consumption of a centrifugal pump wheel, the diameter of which in order to regulate the flow may be equal to or less than the outer diameter of centripetal speed of the turbine wheel. In addition, the extra stress, develop a low-pressure wheel, much less flow pressure created at the expense of pulses accumulated in the pressure centripetal canals turbine wheel. This increase of pressure of the feed stream (and hence the height of its submission) increases with increasing flow and pressure supplied to hydropulse fluid, providing RA is viveme turbine speed impeller power.

As mentioned above, the increase in the pressure supplied by idropulsore fluid by increasing the variable capacity hydraulic drive hydropulse may also be provided with ejection drain flow in the suction pipe, install the impeller propeller hydroturbine at the outlet of the suction pipe, install turning vanes in the discharge channels of the guide vanes of hydropulse and ejection of fluid flow through the nozzles of the discharge channels of the guide vane in the radial outlet ports of the hydraulic stage impeller hydropulse.

In known constructions of geroulanos rotating radial-axial turbine impeller (like accelerating and working valves hydrocarbon) 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 the discharge channels in injection l the tion, rising up in her fluid. Because of the work produced uplift and energy loss of pressure in the supply decreases, the 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.

In the proposed design hydropulse regardless of the position of centripetal pressure channels with constant rotation of the impeller radial (or axial) of the blade additionally constantly pump the fluid in the pressure line, increasing its pressure and increasing the efficiency of the incoming pulse in the pressure fluid 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).

Using the proposed design geroulanos with adjustable parameters of pressure and flow at the outlet increases the reliability and increases the height of the feed rate of the injected fluid and, accordingly, the efficiency under the same parameters of the supplied liquid and the known structures of the same dimensions.

According to literature data using geroulanos their efficiency reaches 70%, and the height of the fluid up to 10 meters

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

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." The publication of the A. F. of debriano, Petrograd, 1916, F. C. konradi. "Hydropulse", Tashkent, 1939, and others)

The invention is illustrated by drawings of the claimed design of Fig hydropulse. 1, 2, 3, 4, 5, 6.

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

1thtop row (section I-I) - spiral exhaust hydropulse and in the center of the cover spiral tap the upper radial and axial sliding bearing;

2thtop row (section II-II) - pressure centrifugal channels of the impeller and spiral casing inlet;

3thtop row (section III-III) - anfractuous, the discharge channels of the guide vane (N. A.), pressure centripetal channels of the impeller (R. K.);

4thtop row (section IV-IV) - anfractuous, blades, N. A. and blades R. K., and in the center of the lower radial bearing slide;

5thtop row (section V-V) - spiral supply pressure fluid to the ejector device in the diffuser OTS is to define the pipe;

bottom row (section VI-VI) - propeller wheel turbines in the diffuser suction pipe.

In the drawing of Fig. 2 shows:

- section (a-a, right side) pressure centrifugal channels of the pump stage R. K. (upper right quarter of Fig. 2) and pressure centripetal canals turbine stage R. K. (lower right quarter of Fig. 2).

- section (b-B on the left) for drain centripetal canals turbine stage R. K.

In the drawings, Fig. 3 (vertical sectional view) and Fig. 4 (horizontal section) shows the drain channel N. A. with a built-in rotary vane, pivot which provides a General regulatory ring.

In the drawings, Fig. 5 (vertical sectional view) and Fig. 6 (horizontal section) shows the pressure channel N. A. with the installed nozzle for the discharge of liquid from the outlet hydropulse.

This hydropulse 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 1On the support 7;

- impeller 8 with the leading disk 9 and made it lower main blades 10, forming a centripetal turbine drain Cana is s 11, placed in them more 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 is closed channels 16, the concave wall 17 which form an additional blades. 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 8 is installed in antifriction radial slide bearing 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 is from the top of the cone 27 and the bottom of the cone 28, which together form an annular cylindrical ejecting nozzle 29. On the upper diffuser 27 is anfractuous 30 pressure fluid from the upper water intake of hydropulse for ejection at the bottom of the diffuser 28. Inside the bottom of the diffuser 28 on a common shaft 22 hydropulse is the impeller 31 propeller turbines;

- in drain channels 4 of the guide vane 2 is turning vanes 32, which can sync the NGOs to unfold the total regulating rotary ring 33 by means of tie rods 34.

- pressure in the channels 6 of the guide vane 2 posted by ejecting nozzle 34.

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, located above the drain channel 4's pressure centripetal channels 14 is blocked at the inlet thick stationary upper blades 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 channels 11 are overlapped at the entrance thick stationary lower blades 3 of the guide vane 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.

Concave is e (in the direction of rotation) of the wall 17 of closed channels 16, made in the blades 10 and 13, are additional blades of turbine stages of the impeller 8.

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, which is lubricated by the liquid.

In the suction pipe 26, which is designed to drain the fluid from the drain channels 11 of the impeller 8 in the lower reach, pour out the liquid ejectives additionally supplied with liquid from the upper downstream through anfractuous 30 and through the annular ejecting nozzle 29 formed by the top diffuser 27 and the lower cone 28 of the suction pipe. When working ring ejector in the drained fluid is provided by increasing the pressure of the liquid at the entrance to the turbine drain stage impeller, increasing its hydraulic capacity.

The impeller 31 propeller turbines, located in the lower cone 28 of the suction pipe 26 on a common shaft 22 hydropulse due to develop, thanks to twisted turbine stage and the ejector outlet flow, torque, increases the capacity of the impeller of hydropulse and hence fu is by them the pressure of the supplied fluid.

Installed in the discharge channel 4 of the guide vane 2 rotary blades 32 regulate the flow rate in the drain channels 11 of the impeller 8, while allowing the redistribution of the input fluid flows in the guiding device 2 to regulate the flow in the pressure centripetal channels 14 and further to the pressure centrifugal channels 19 of the impeller that allows you to adjust the output parameters of hydropulse.

Simultaneous reversal of the blades 32 is provided on General regulatory ring 33 when his turn.

Installed in the pressure channel 6 of the guide vanes 2 of the nozzle 34 that allows you to convert a pressure applied thereto stream dynamic pressure when running surfaces of the pressure channels congruent outer surfaces of the nozzles with a narrowing of the space between the surfaces to a common output, allow the ejection flow of the incoming flow channels 6 of the guide vane 2 in the pressure channels 14 of the impeller 8, increasing the output pressure of hydropulse.

Thus, the proposed design hydropulse 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, sod is Rashi supply, the guide device with the blades forming the centripetal drains placed over these channels blades, forming a centripetal pressure channels, and 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 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 output diameter of the wheel blades of a centrifugal pump stage is made smaller than the outer diameter of the blades of the impeller centripetal turbine stage.

2. Hydropulse under item 1, characterized in that the suction pipe drain hydro turbine stage impeller is made of upper and lower diffusers, forming an annular ejector, hydraulically connected with the upper water intake of hydropulse.

3. Hydropulse under item 1, characterized in that at the outlet of the suction pipe centripetal turbine drain stage impeller mounted impeller propeller turbines.

4. Hydropulse under item 1, characterized in that the drain channels of the guide vanes are pivoted vanes.



 

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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: 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

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