The impeller propeller turbines
(57) Abstract:The invention relates to the field of hydrocarbonate. In the impeller, comprising a housing with a cone and blades with mounting flanges, enshrined in the second slots of the housing, the flange of each blade is made in the shape of a rectangle, and the nest at the end of the housing from the side of the body is open, allowing you to push the blades through these open sides in the axial direction and thereby remove them from the working chamber without removing the impeller. The use of the invention allows to reduce the complexity of maintenance of the impeller of the turbine. 1 C.p. f-crystals, 2 Il. The invention relates to the field of hydrocarbonate and can be used in the manufacture of impellers propeller turbines,
In the propeller turbines, the blades of the impeller permanently fixed with optimal installation angle. Each blade is equipped with a mounting flange that is installed in the corresponding slot of the housing and fixed therein, in particular bolts (1). This traditional impeller is the closest analog of the present invention.In the impeller propeller hydro is bhodemon to carry out the dismantling of the blades. However, in the known propeller-turbines flange blades traditionally perform all by placing it in a deep round socket housing, and therefore the blades cannot be removed through the chamber of the impeller, which does not allow you to push the blade with flange from the cylindrical sockets of the buildings in the radial direction. Therefore it is necessary to dismantle the entire impeller, which increases the complexity of maintenance,
The main task of the present invention was the creation of such impeller propeller turbine in which the blades were connected to the housing so that each blade can be removed separately with the output from the camera impeller.This problem is solved in the impeller propeller turbine, which includes a housing with a cone and blades with mounting flanges, enshrined in the second slots of the housing, and in which, in accordance with the essence of the present invention, the flange of each blade is made in the shape of a rectangle, and a slot in the housing from the side of the cone is made open.This solution allows after disassembly of flanged joints to move each blade in the axial voltage is t maintainability of the impeller. Besides the rectangular shape of the flange of the blade eliminates the possibility of its reversal, eliminating the action of the corresponding moment of the forces on the bolts and thereby eliminating the need to install special keys, perceiving efforts slice from the moment that exist in the working wheels of conventional designs. Rectangular flange according to the invention, in addition to the above advantages, having a larger area than traditionally performed round flanges, allows to increase the area of sealing the root section of the blade and thereby increase its strength and rigidity.The flange of the blade can be fixed to the chassis using commonly used bolt connection, but can be used and another famous flange connection with the case, in particular, in the form of a dovetail, capable of resisting the action of centrifugal force. The axial force acting on the blade, a relatively small and in many cases the efforts of the tightening bolt connection may be sufficient for the perception of this effort. However, if you need a significant increase in the margin of safety can be applied to any known special tool for axial forces. ODN blades.The essence of the present invention is illustrated in the following further detailed description of one example implementation, depicted in the attached drawings, in which:
Fig. 1 shows the impeller propeller turbines at the sight of him in the radial direction;
Fig. 2 - impeller of Fig. 1 in the meridional section along a-a in Fig. 1.The impeller propeller turbine, as shown in the drawings, includes a housing 1 is fixed at its end of the cone 2 and the blades 3. Each blade 5 is made with a mounting flange 4 to which the root section made a smooth transition. The flange 4 has a rectangular shape and set to meet him on the size and shape of the slot 5 in the casing 1 impeller. The slot 5 is made from cone 2 open. The flange 4 is fixed to the housing 1 by means of bolts 6. On the inner side of the housing 1 through the opening it has the finger 7, part of his end in the recess of the flange 4 and thereby locking the blade 3 from moving in the axial direction.If necessary, removal of the blades 3 are first removed the cone 2. Then remove the blade extends from the undercut in the flange 4 of the blade finger 7, vivenciada mounting boltpistol is carried out in reverse order.The source of information
1. Reference turbines. L., 1984, S. 155, Fig. U. 18. 1. The impeller propeller turbine, comprising a housing with a cone and blades with mounting flanges, enshrined in the second slots of the housing, wherein the flange of each blade is made in the shape of a rectangle, and the nest at the end of the body of the cone is made open.2. The impeller under item 1, characterized in that on the inner side of the body has fingers that are included with their ends in the undercut flanges of the blades.
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.