Turbine with shutter
(57) Abstract:The turbine is designed for the energy of the flow stream. The turbine includes a shaft, axial impeller, stator, providing promotionsthe her flowing part and the shutter made with surfaces that ensure its adherence to the surfaces of the stator, and having the ability to move along the axis of the turbine for closing or opening the flow part through a system of levers and drive. The shaft has a housing with supports and guides for the gate. On the shutter housing mounted levers interacting with supports and guides on the casing of the shaft, and adjustable stops for the levers. The shutter in the maximum raised position pressed by the actuator to the lugs on the casing of the shaft. The design of the device enables the creation of vertical turbines shutter as a single, permanently-built unit in HPP. 2 Il. The invention relates to power engineering and can be used in the turbines.Known turbine flow path, close to the uniflow located horizontally (see N. N. Kovalev. The turbines. HP: motor cycle", 1971, page 84). Due to priblijennosti turbine and its speed.Straightened flow path characterized by a more uniform compared with the radial inlet velocity distribution in the flow part and, in particular, in the area between the stator and impeller. This reduces the level of energy losses and increases hydraulic efficiency.These advantages turbines with direct-flow system can be expressed in the increase of power compared to the turbine with a radial inlet with the same diameter of the impeller and the pressure.But despite all these advantages flow path, the horizontal position of the considered turbine complicates the design of the entire unit, most of the nodes which are placed in a special capsule below the level of the upstream, which implies that the specificity of such nodes and creates certain difficulties. In addition, the horizontal layout of the unit allows the use of only performed separately shutter, which increases the length of the inlet conduit.Closest to the claimed technical solution is the solution claimed in the U.S. patent 1682966, priority from 14.07.1924 "Water Wheel". The design of the slide, as claimed in this patent,he levers connected with the hydraulic actuator, with the help of which it can move along the axis of the hydraulic unit for controlling the flow of water through the turbine, i.e., to regulate its power. The disadvantage of this design is its system of levers, which although reduces the necessary force to move the bolt, but it is created through the creation of a significant size of these levers, as they are attached to the wall of the flow part of the building of a hydroelectric power station.This leverage when lifting the shutter moves it relative to the axis of the hydraulic unit, thereby disrupting osesimmetrichnoi flow, which reduces the efficiency of the turbine. The operation for mounting the hinge levers on the walls of the building of a hydroelectric power station increases the time of installation of the equipment.The technical result of the claimed invention is to provide a vertical turbines shutter as a single, completely manufactured for installation on HPP building block.The technical result is achieved by the fact that the turbine comprising a shaft, axial impeller, stator, providing promotionsthe her flowing part, the shutter is made with surfaces that ensure its adherence to the surfaces of the stator,redstem system of levers and drive, the shaft has a housing with supports and guides the shutter, the shutter housing are levers interacting with supports and guides on the casing of the shaft in order to reduce the load on the drive speed and decrease the speed of the shutter in the area of small discoveries, as well as to ensure straightness move the bolt along the axis of the turbine, also on the shutter housing are adjustable stops to ensure the simultaneity touch levers shutter stops on the casing of the shaft, the valve is in the maximum raised position pressed by the actuator to the lugs on the casing of the shaft.In Fig. 1 shows a turbine with the shutter where the shutter is shown in two positions - open flow area (upper position) and closed flow area (lower position). In Fig.2 shows the shutter is pressed against the upper adjustable stop. In Fig.1 and 2 indicated:
1 - impeller
2 - stator turbine
3 - shutter
4 - stop on the top
5 - cover the shaft
6 - guides
7 - drive shutter
8 - arm
9 - stop on the bottom
10 - the adjustable
11 - zone stator outer
12 - zone stator internal
In the proposed design of the turbine regulirovaniya 3, having the ability to move along the axis of the block, only opens or closes a flow path. Promotionsthe flow to the turbine is provided by the shape of the stator 2, the profiled pillars which are the stationary vanes of the guide vane.Lowering the shutter 3 when the overlapping of the duct at the expense of the weight of the shutter hydraulic or electric actuator 7 is connected with the shutter steel slings. During operation of the turbine gate is raised by a certain amount to eliminate its impact on the watercourse and pressed against the upper lugs 4 on the casing of the shaft 5. The straightness of the movement of the shutter, which is exposed to flow, provide levers 8 and the guides 6 on the casing of the shaft 5. Before completing overlap duct pressure on the shutter 3 rises due to the occurrence of differential water pressure. To avoid overloading of the actuator 7, the casing of the shaft 5 is provided lower stop 9, upon which the levers 8, resulting in a redistribution of the load actuator 7 to the stop 9. Using the same levers 8 is slow lowering of the shutter 3, which reduces the effect of the reaction water flow part of the turbine at the moment is full of the outer 11 and 12 internal zones of the stator 2. When lifting the valve for opening the flow path of the turbine are the same as the results of the interaction of the levers 8 and lock 9, i.e., reduces the load on the drive of the shutter 7 and slows the movement speed of the shutter 3. To avoid bias in the position of the shutter 3 as it descends provides simultaneous touch all the levers 8 gate 3 stops 9 on the casing of the shaft 5. To this end, the shutter has adjustable stops 10, through which is regulated by the angular position of each lever 8. When lifting of the shutter 3, the rotation of the levers 8 after termination of their interaction with the stop 9 is limited to the same lugs 10.Due to the claimed solution is achieved by the following technical and economic effect. Obtained the ability to manufacture turbines with a shutter in the form of a completely manufactured at the factory block. The design of the turbine reduces the amount of installation work when you install it on HPP and reduce the intensity of the product, which reduces its cost. Turbine comprising a shaft, axial impeller, stator, providing promotionsthe her flowing part and the shutter made with surfaces that ensure its adherence to the surfaces of the stator, and Imom system of levers and drive, wherein the shaft has a housing with supports and guides the shutter, the shutter housing mounted levers interacting with supports and guides on the casing of the shaft, and adjustable stops for the levers, the valve is in the maximum raised position pressed by the actuator to the lugs on the casing of the shaft.
FIELD: mechanical engineering.
SUBSTANCE: invention relates to structures of installations for energy conversion of water course of airflow into electrical power. Hydropower installation contains generator 1 and hydrodynamic drive 4, implemented in the form of two sequentially installed screws 7 and 8, implemented with rotation ability into side opposite and connected to generator 1 through conversion facility of rotational movement of two shafts into rotational movement of one shaft, implemented in the form of conic step-up gear 13, installed in inner body 6. Inner body 6 is affixed to external body 5 by means of two wicket gates 23 and 24, provided for spinning of water flow before its supplying to the back screw 8.
EFFECT: invention is directed to increasing of coefficient of efficiency of installation ensured by increasing of back screw coefficient of efficiency.
FIELD: engines and pumps.
SUBSTANCE: invention relates to units designed to convert water flow energy into electric power. Proposed power source comprises generator 1 and hydrodynamic drive 2. Aforesaid birotary generator 1 includes housing 11 and two rotors 12 and 13. Aforesaid hydrodynamic drive 2 represents two coaxial screws 3 and 4 fitted on shafts 7 and 8 on both faces of generator 1. Power source incorporates rotation converter and two auger-type turbines 5 and 6 arranged concentric with housing 11. Screws 3 and 4 and auger-type turbines 5 and 6 are linked with inner and outer shafts 7 and 9, respectively, and, via rotation converter, with rotors 12 and 13 of generator 1.
EFFECT: higher efficiency, reduced sizes at increased power.
7 cl, 6 dwg
FIELD: power engineering.
SUBSTANCE: invention is related to designs of plants for transformation of air flow water course energy into electric energy. Hydropower plant comprises generator 1 and hydrodynamic drive 2, arranged in the form of two coaxially installed screws 5 and 6, which are arranged, in their turn, with the possibility of rotation in opposite directions and connected with generator 1 via facility of two shafts rotary motion transformation into rotary motion of single shaft. Transformation facility is arranged in the form of differential planetary multiplier. Generator 1 and transformation facility are installed in body 17, having joint 18, located in vertical plane, passing through center of masses, fixed on stand 19 and providing for possibility of rotation in horizontal and vertical planes, and cavity of generator 1 is sealed and filled with lubricating liquid and communicated to pressure compensator 21, which consists of cylinder 22 and spring-loaded piston 23.
EFFECT: invention is aimed at increase of plant efficient factor with reduction of its dimensions and simultaneous increase of power.
7 cl, 2 dwg
FIELD: power engineering.
SUBSTANCE: hydrogenerator comprises electric generator 1 and hydrodynamic drive 2. Electric generator 1 is arranged as birotary in the form of cylindrical body 3 with excitation winding 6 inside of it and external and internal rotors 4 and 5. Hydrodynamic drive 2 is arranged in the form of two coaxially installed turbines 9 and 10, one of which is installed on external surface of external rotor 4, and the second one - on internal rotor 5. Electric generator 1 is equipped with magnets 7 and 8, installed on external and internal rotors 4 and 5, located accordingly inside and outside body 3. Turbines 9 and 19 are arranged as auger, the second of which is installed on internal surface of internal rotor 5.
EFFECT: higher efficiency factor of plant with reduction of its dimensions and simultaneous increase of power.
5 cl, 3 dwg
FIELD: power engineering.
SUBSTANCE: source of energy comprises electric generator 1, arranged as birotary with internal and external rotors 5 and 4 and hydrodynamic drive 2 with internal and external shafts 13 and 12 of drive. On external rotor 4 of electric generator 1 there are stages of working blades 14 installed, between which here are stages of opposite rotation working blades 16 installed, being connected to internal rotor 5 of electric generator, through magnetic couplings 17, number of which corresponds to number of stages of opposite rotation working blades 16.
EFFECT: increased efficiency of plant with reduction of its size and simultaneous increase of power.
4 cl, 5 dwg
FIELD: engines and pumps.
SUBSTANCE: invention relates to designs of plants designed to convert water current energy into electric power. Proposed hydro-generator driven by sea current comprises hydrodynamic drive 2 and electric birotary generator 1 made up of housing 3, outer and inner rotors 4 and 5. Inner rotor 5 is arranged inside said housing 2. Hydrodynamic drive 2 represents blades 9 radially fitted on outer surface of outer rotor 4 and is mounted in casing 19 furnished with inlet and outlet branch popes. Housing 3 and casing 19 represents cylindrical structures. Outer rotor 4 seats outside housing 3. Rotors 4 and 5 are coupled via reduction gear 12 comprising driven gear 13 in mesh with outer rotor 4, idle gears 14 and drive gear 16 in mesh with inner rotor 5 to ensure counter rotation of rotors 4 and 5.
EFFECT: higher efficiency, reduced sizes and increased power output.
2 cl, 2 dwg
FIELD: engines and pumps.
SUBSTANCE: proposed hydraulic turbine comprises cylindrical section-modular housing 1 with vane-screw rigidly fixed on the shaft and appliance to secure the vanes to the housing that allows the shaft rotation. Each section accommodates vane-screw. All vanes feature identical curvature to provide for constant flow rate and synchronous operation of all vane-screws. Attachment mechanism is arranged on opposite side of vane-screw relative to flow direction. Turbine incorporates flow stabilisers made up of metal sheets with their one rib secured to housing 1 and their plane oriented along the radius towards the shaft along housing 1 to stabilise the flow coming from one vane-screw to the other.
EFFECT: simple design and operation, higher output and efficiency, longer life, reduced production costs.
FIELD: engines and pumps.
SUBSTANCE: unit is intended to be used at derivational and reservoired HPP with inconsiderable vibration of after-bay level with wide ranges of water head and flow rate. Lower end of vertical shaft of the unit with operating spherical surface is borne against the centre plate. Cone-shaped tray is rigidly attached to the shaft and impeller. Outlet tubes with variable and fixed cross section area are tangentially attached to the above cone-shaped tray. One end of bent vanes is fixed in the guide vanes in external rim and the opposite end is attached to the rim which envelops the shaft. Vanes are made at a tangent to outlet section plane. Upper rib of vane is oriented in radial plane and inclined from internal rim to external rim, and lower rib is oriented horizontally. Seal of the impeller consists of two flexible elastic rings with the chute profile the bottom of which faces the top. Some sides of those are tightly attached to the sealed parts and the opposite convex sides contact each other. Centrifugal water flow regulator includes balancing levers, rods and a slide on the unit shaft, and it is arranged in protection casing in the flowing water flow.
EFFECT: use of the unit contributes to increase in the power, efficiency and high speed, and allows simplifying, cheapening and accelerating the HPP construction.
7 cl, 17 dwg
FIELD: machine building.
SUBSTANCE: proposed system comprises rotor assembly with axial symmetry about rotational axis and features rotor end face located upstream, turbine shroud ring 102 housing, at least, part of rotor assembly and ejector ring 128 housing, at least, part of said turbine shroud ring 102. Said turbine shroud ring has inlet and outlet. Said turbine shroud ring outlet 117 comprises multiple elements turbine shroud ring mixer and features noncircular cross-section. Ejector ring 128 comprises inlet and outlet.
EFFECT: higher output and efficiency.
15 cl, 35 dwg
FIELD: power industry.
SUBSTANCE: in method of moving flow impact on screw of wind or hydraulic motor the kinetic energy of moving flow having constant velocity is converted to alternating pulse flow that is applied to the screw at transient processes, at occurrence of inertia properties of the flow, at mechanical resonance. In the device implementing the above method the smallest section of pipe channel 4 arranges slot-screw group consisting of coaxial slot-type fairing disc 1 with fairings, control slot-type disc 2 and screw 3. When the slots are fully open, screw 3 blades form together with fairings a wing airfoil. Slot-screw group for control of screw 3 rotation frequency changes the size of slots by rotating control slot-type disc 2.
EFFECT: increasing the conversion efficiency of kinetic energy of moving constant flow to mechanical energy of rotating screw.
2 cl, 11 dwg
FIELD: machine building.
SUBSTANCE: hydraulic machine has an impeller with a multiple of blades, a scroll case that covers the impeller and is open towards it due to a circular slit formed by two circular edges, a traverse ring which includes two covers 4.1, 4.2 interconnected with tie bolts. The scroll case is attached to covers 4.1, 4.2 of the traverse ring in the area of the circular edges. Areas of the circular edges are made and/or located in such a way that both edges are parallel to the rotation axis of the impeller or make angle α of 11 degrees maximum with it. When viewed in meridian section the scroll case consists of two arcs 3.4, 3.5 of the circle that lie closer to covers 4.1, 4.2 of the traverse ring and have smaller diameters, and of an additional arc 3.3 of the circle that lies further from covers 4.1, 4.2 of the traverse ring and has a larger radius.
EFFECT: building of a reliable hydraulic machine.