Hydraulic jet turbine
(57) Abstract:The inventive stator installed still. Mounted for rotation disk and the ring are located respectively above and below the rotor. Within the rotor flow channels, the Central and annular cavity between which is placed the blade of the guide vane with the formation of channels. In the ring and the disk are made ledges. The disk is made open with the formation of bridges. The stator is provided with radially spaced reflectors, the cavity between them is limited by the protrusions of the disk and ring. Flow channels of the rotor with the output side is oriented to the reflectors in the opposite direction from the entrance. The outputs of the channels between the guide vanes and the entrances to the flow channels of the rotor of the United annular cavity. The reflectors and the cavity between them are with the formation of the fixed part of a closed system. The spandrels between the Windows in the protrusions of the disk, the ring projections and forming the surface of the rotor with the formation of the movable part of the closed system. 6 Il. The invention relates to hydromelioration and can be used in the design of turbines.Known water is from the bottom of the disk is placed a ring, at the bottom of which channels, a fixed disk, the rotor is made in the form of a ring, in the upper part is made sinuses separated by partitions, on the periphery of the ring hole for exit of fluid from the turbine.In worker process liquid flows through the open top of the drive input devices (guide vanes) and passes into the channels of the guide vanes at the exit of the guide channels, the fluid exerts pressure on the walls of the sinuses and informs the wheel movement, on the walls of the flow changes direction of movement opposite and faces the other of the opposite side walls freely out of the turbine rotor and workflow.The disadvantage of this device is free exit flow of fluid from the working process in which a significant part of the kinetic energy of the flow goes into loss.The aim of the invention is to improve the energy efficiency of fluid flow.This objective is achieved in that the rotor is constructed in the form of a wheel, consisting of working blades forming flow channels in which the flow changes direction of movement opposite, disc and ring forming part of the rotor, the supply shall think which guide vanes are divided into Central and annular combining all the outputs of the channels formed by the guide vanes and all entries in the flow channels of the rotor. The turbine housing is made in the form of stator with radial reflectors facing to the shaft axis, the reflector and the cavity between them is placed between the projections of the disk and ring and form the stationary part of a closed system, to a movable portion which includes a jumper between the Windows in the protrusion of the disk, the ring projections and forming a cylindrical surface of the rotor.A comparison of the claimed technical solution with the prototype allows to make a conclusion on compliance with a criterion of "Novelty", as proposed device is characterized by the presence of new elements, form and the new location of the known elements, as well as new contacts.The comparison of the proposed solutions not only prototypes, but also other technical solutions, revealed no signs, similar to the distinctive stated object, which allows us to conclude that compliance with a criterion of "Significant differences".The essence of the technical solutions is that in the proposed device the flow of water pawlewski blades, and then in the annular cavity, combining all the outputs of the channels between the blades and all inputs in the flow channels of the rotor. In the annular cavity, the flow moves along the arc with the formation of centrifugal force, under the influence of which he enters the flow channels rotors, putting pressure on the concave side of the channel and the active principle of the rotor according to the movement. When the rotor comes to output flow from the flow channels, and when the output of the stream hits the reflectors of the stator in a closed system, where its speed is reduced to zero only on the reflectors of the stator, and in flow channels of the rotor, the traffic flow is maintained because the movement of the channels and flow channels are directed in opposite directions. In this case, all the kinetic energy of the fluid flow on a solid stationary obstacle is converted to a reaction force equal to the force of the stream, which is reactive with the principle increases the torque on the rotor.Thus in the proposed turbine simultaneously operate both the principle of operation of the turbine both active and reactive, which improves the energy conversion efficiency of the flow of water into useful work. However, the proposed turbine SNIA cross-section in its separate parts, and due to the possibility to independently take any allowable flow rate and impeller, that provides the ability to reduce or completely eliminate the occurrence of cavitation.In Fig. 1 schematically shows a General view in cross section along the axis; Fig.2 is a top view of Fig. 3 - cavity, divided guide vanes at the Central and annular flow channels, the projections of the disk, the output window, the jumper between the Windows, reflectors stator cavity between the reflectors of Fig.4 is a section through the input window in the position of communicating cavities; Fig.5 - section in an isolated position between the reflectors from the output of the ring cavity (closed portion of the flow side) of Fig.6 is a variant of the guide blades.Hydraulic jet turbine consists of an input pipe 1 connected to the Central cavity 2, the guide vanes 3, the periphery of which there is a ring cavity 4, a rotor 5, which consists of the disk 6 and the ring 7 with the projections 8 and output Windows 9 in the lug 8 of the disk 6, between which is placed the jumper 10, flow channels 11, forming the cylindrical surface 12 of the rotor 5, the housing made in the form of stator 13 with radially placed reflectors 14 and the cavity 15 between the reflectors 14 and peripheral output ring cavity 16, which through internal channels 11 of the rotor 5 is formed an annular cavity 4, combining all the outputs of the channels between the guide vanes 3 and all entries in the flow channels 11 of the rotor 5, the reflectors 14 of the stator 13 and the cavity 15 between them form the stationary part of a closed system, and the movable part consists of 10 jumpers in the protrusion 8 of the disk 6, the protrusion 8 of the ring 7 and the forming surface 12 of the rotor 5.Hydraulic jet turbine operates as follows.On the inlet pipe 1 flows into the Central cavity 2 and the channels between the guide vanes 3, the output of which in the annular cavity 4 stream twists along the arc of a circle with the advent of the centrifugal force, under the influence of which enters the flow channels 11 of the rotor 5 and the process by which changes the direction, putting pressure on its concave side, which is the active principle of the rotor 5 according to the movement. At the outlet of the flow channels 11 in the closed part of the flow system, the flow encounters the reflector 14 of the stator 13, where its speed is reduced to zero, only the reflectors of the stator (in the cavities 15),and in the flow channels of the flow is preserved, since the movement of the channels and flow channels are directed in opposite directions, and by lowering the ambulance on a jet principle and the law of action is equal to counteraction has the same effect as the reflectors of the stator, and on the rotor, as well as reflectors of the stator are firm fixed obstacle, the entire reaction force is transmitted to the rotor, increasing its torque, i.e., both the principle of operation of the turbine, both active and reactive at the same time create a torque directed in one way that ensures the achievement of this goal.During rotation of the rotor is the moving part of a closed system is moved relative to the stationary and the output window 9 fit in the cavity 15 between the reflectors 14 of the stator 13, which was in a closed system filled with working water connect the cavity 15 with the output ring cavity 16 where the pressure is reduced to atmospheric, and the spent water is coming from the turbine.At the same time on the other side of the flow channels of the rotor fit in the cavities 15, exempt from working the water, where the pressure is reduced to atmospheric.Thus, in the proposed turbine is provided, the normal flow of water.The location is inside the Central rotor cavity, the guide vanes and the annular cavity provides a stream of occurrence of centrifugal forces, under the influence of which on the active principle of the flow exerts on the solid stationary obstacle in the process of lowering the velocity of the flow to zero all of its energy is converted in a reaction force, equal to the force of the stream, which is reactive with the principle also creates a torque to the rotor, directed in the same direction as the torque from the power of the active principle.Hence we can conclude that the presence of a Central cavity, the guide vanes and the annular cavity within the rotor on the one hand provides the possibility of using the energy flow in the flow channel on the active principle, and on the other side in the same channel is the possibility of using energy on the jet principle, and this creates conditions for better use of the energy of the flow of water into useful work. HYDRAULIC JET TURBINE, containing the guide blade apparatus, the stator is mounted is stationary, the rotor mounted rotatably and ring located respectively above and below the rotor, characterized in that the inside of the rotor flow channels, as well as the Central and annular cavity between which is placed the blade of the guide vane with the formation of channels in the ring and the disk are made projections, the latter of which made the window with the formation of the jumpers, the stator is provided with radially placed reflectors, the cavity between Kotor reflectors in the opposite direction from the entrance, the outputs of the channels between the guide vanes and the entrances to the flow channels of the rotor of the United annular cavity, the reflector and the cavity between them are with the formation of the fixed part of a closed system, and the jumper between the Windows in the protrusions of the disk, the ring projections and forming the surface of the rotor with the formation of the movable part of the closed system.
FIELD: oil and gas extractive industry.
SUBSTANCE: device has metallic hubs of stator and rotor, wherein crowns of stator and rotor are concentrically pressed. Crowns of stator and rotor are made of durable ceramics and are additionally equipped with connections, allowing to exclude non-controlled turning of crowns in hubs and spontaneous axial displacement thereof.
EFFECT: higher reliability and efficiency.
FIELD: engine manufacturing.
SUBSTANCE: invention relates to method of operation of self-contained power station powered by diesel-generator set. According to proposed method of operation of self-contained power station powered by diesel generator set equipped with additional flywheel and disconnect clutch with automatic control members, additional flywheel is mounted on separate shaft which is connected with diesel-generator set by means of disconnect clutch. Preparatory operation is carried out to set power station into operation with subsequent overcoming of short-time starting resistances from consumer. Additional flywheel is connected to shut down diesel generator set by means of disconnect clutch. Power station is started under no load, and its coming to rated speed is detected by readings of generator shaft speed pickups. Load is connected and intensity of generator shaft speed drop is checked. Information is automatically transmitted to controller wherefrom, at termination of generator speed drop, signal is transmitted to disconnect clutch, and rotating additional flywheel is disconnected from diesel generator set, thus changing the set for accelerated mode of restoration of initial rated speed.
EFFECT: provision of power saving operation at stable conditions for overcoming designed resistance torque and short-time overloads exceeding capabilities of chosen supply source.
FIELD: electromechanical engineering.
SUBSTANCE: proposed generator primarily designed to supply with power borehole instrument of face telemetering system in the course of boring has internal stator and rotor; the latter mounts turbine in its front part that has casing carrying rectangular- or trapezoidal-section helical blades. These blades are free to vary their angle of lift depending on conditions of borehole washing with drilling fluid. Blades may be made of flexible material and have two parts of which one part is joined with turbine casing and other (loose) part is free to bend in transverse plane. In addition, blades may have variable stiffness in cross-sectional area and variable height of cross-section profile; loose parts of blades may be joined with ring. Blade turn limiter responding to maximal discharge of drilling fluid may be provided on the turbine casing.
EFFECT: enhanced operating reliability and extended variation range of drilling fluid discharge through generator turbine.
7 cl, 2 dwg
FIELD: oil and gas well drilling equipment, particularly axial flow turbine of multistage turbodrill.
SUBSTANCE: turbodrill turbine comprises stator with blade ring and inner rim, rotor with blade ring and hub. Design angles of stator flow inlet and outlet directions α2 and α1 and rotor flow inlet and outlet directions β2 and β1 are related by theoretical correlations with peripheral velocity determined in idle and optimal (shock-free) mode of turbine operation. Stator and rotor blade ring blades defining above design angles as distinct from prior art turbines are formed so that shock-free regime of flow around the stator and the rotor is realized at different peripheral velocities, wherein above shock-free regime of stator flow-around is performed in retardation mode, shock-free regime of rotor flow-around is performed in runaway mode thereof. Above stator and rotor angles are correlated as α1<α2≤π/2 and β2<β1≤π/2 (in the case of positive reactive turbine) and β1<β2≤π/2 (for negative reactive turbine). The stator rim has surface of lesser diameter having conoid shape and converging towards lower cross-section thereof so that minimal annular gap defined by rotor hub is 0.05-0.3, preferably 0.1-0.2 of radial stator blade height and inner blade ring surface of lesser diameter has conoid shape and is converged to upper section so that radial rotor blade height ratio in lower and upper sections is equal to 0.7 - 0.95.
EFFECT: increased axial support resistance along with increased performance.
5 cl, 8 dwg
FIELD: engines and pumps.
SUBSTANCE: invention can be used as a hydraulic turbine for producing electric power, as a pneumatic and hydraulic turbine making a drive in heading machines, as well as in drilling gas and oil holes. Twin rotor stepping turbine incorporates an asynchronous reduction gear. Inner (5) and outer (6) rotors are fitted aligned on the aligned shafts, the outer and inter rotor vanes entering their inter-vane space to come into contact with the inner rotor outer surface and the outer rotor inner surface, respectively, so as to turn the said rotors in turn one way through the designed angle from the acting working clearance which allows filling the rotors' inter-vane space via the slide valves fitted on the turbine inner and outer rotors. Note that the aforesaid rotors are rigidly linked with the aforesaid inner and outer aligned shafts of the asynchronous variable gear ratio reduction gear to allow asynchronous one-way rotation of the twin turbine inner and outer rotors.
EFFECT: smaller turbine overall sizes and higher output.
FIELD: engines and pumps.
SUBSTANCE: proposed turboalternator comprises outer stator arranged in tight casing, upper fairing and inner rotor fitted on turboalternator shaft. The latter runs in rolling bearings arranged on both sides of the rotor. Said shaft is furnished with two extra seals. Said tight casing is filled with lubricant-coolant. It comprises two stationary pistonless compensators that do not revolve with the shaft. First compensator is arranged inside turboalternator housing nut and filled with lubricant-coolant. Second compensator is arranged in shell that covers the turboalternator tight housing. First seal separates inner space of the said first compensator from outer fluid (drill fluid), while second seal separates first compensator inner space filled with lubricant-coolant from turboalternator tight housing, also filled with lubricant-coolant.
EFFECT: notable reduced abrasive wear, ruling out turbulent flow origination, longer life and higher reliability.
1 cl, 1 dwg
FIELD: oil and gas industry.
SUBSTANCE: invention is related to power supply system of borehole surface system assembly. The power supply system of a borehole surface system assembly contains at least one primary engine interconnected to fuel source supplying the primary engine and containing at least one heat source, at least one pump driven by the primary engine interconnected to at least one borehole and at least one fluid used in the borehole and at least one auxiliary system interconnected to the heat source from at least one primary engine. At that the auxiliary system contains a heat exchanger designed to transfer heat from the heat source to the fluid in order to separate one part of the fluid from the other part in at least one borehole.
EFFECT: improving efficiency, flexibility and productivity of the power supply system of a borehole surface system assembly.
20 cl, 5 dwg
FIELD: oil and gas industry.
SUBSTANCE: generator, external stator placed in as sealed body, internal rotor installed at the generator shaft with roller bearings in sealed cavity filled with a lubricant coolant and sealing components. At that the generator sealed body is divided into three sealed loops - electrical, kinematic and protective ones. Electric loop of the stator is equipped with an independent compensating diaphragm and filled with cooling liquid and separated from the kinematic loop by a screen made of non-magnet material. Kinematic loop of the bearings is filled with lubricant and separated by a system of cup-type seals and inner diaphragm from the protective loop of an end sealing compensator filled with lubricant in the volume limited by the outside diaphragm. The electrical loop is filled with dielectric cooling liquid without excessive pressure; the kinematic is filled with dielectric cooling liquid without excessive pressure; protective is filled with dielectric cooling liquid under excessive pressure. Besides, the protective loop may be filled with lubricant having higher viscosity and higher boundary tension in comparison with lubricant in the kinematic loop. Zero point of the stator windings is coupled to the body through a plugging contact. The filling system for the protective and kinematic loops has a valve spindle to switch between the filled loops at vacuuming and filling of lubricant. Rigidity of diaphragms in the electric and kinematic loops is higher than the same in the protective loop.
EFFECT: improving reliability of the generator and reducing labour intensity during repair and maintenance operations.
6 cl, 1 dwg
SUBSTANCE: group of inventions is related to drilling, i.e. to rotary drilling hydraulic drives installed in borehole. Assembly of hydraulic downhole motor comprises screw motor having near end and far end and comprising stator and rotor. Stator comprises metal case, first elastomer material arranged in metal case, and first rigid material, arranged radially and directed inward from and at least partially covering first elastomer material. Rotor contains metal core, second elastomer material, located around metal core, and second rigid material arranged around second elastomer material. Stator first rigid material contacts rotor second rigid material.
EFFECT: enabling limiting of rotor geometric center displacement trajectory.
12 cl, 21 dwg
SUBSTANCE: invention relates to turbine for transmission of electric data from one end of turbine to other end. Turbine (100) has first end (101) and second end (103). Ends (101) and (103) are opposite to each other. Turbine (100) comprises housing (104), shaft (102) located in centre of housing (104), engine (106), having a plurality of rotors, stators and bearings arranged between shaft (102) and housing (104), at least one non-conducting insulator, providing electrical insulation of shaft (102) and housing (104) from each other. Engine (106) is located between first end (101) and second end (103) of turbine (100). Non-conducting insulator is located between housing (104) and a plurality of rotors, stators and bearings or is located between shaft (102) and a plurality of rotors, stators and bearings.
EFFECT: invention is aimed providing transmission of electric data signals.
20 cl, 12 dwg