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IPC classes for russian patent Turbogenerator foundation slab (RU 2261956):
Another patents in same IPC classes:
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Foundation structure for building and building structure / 2256033
Foundation structure comprises shallow foundation and reinforcement members. Reinforcement members are made as vertical bars of precast or cast-in-place piles having diameters less than 200 mm and arranged along foundation perimeter. The piles are spaced a distance from outer foundation faces. The distance is equal to 0.1-0.5 of reinforcement member diameter. Distance between neighboring piles is equal to 2-4 reinforcement member diameters and reinforcement member length is 15-20 diameters thereof.
 Turbogenerator foundation slab / 2261956
Foundation slab comprises stator body base including support part connected with foundation. Arranged between support part and foundation is damping panel including reinforcement formed as vertical rods. Foam plastic member is put on the vertical rods and grouted with concrete grout. Vertical rods are connected one to another in horizontal plane with wire arranged at least in two levels in vertical plane of damping panel. Vertical rods extend through support part, pass into stator body base and into foundation.
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Vibroinsulated foundation comprises bath and foundation block arranged in the bath so that the foundation block is spaced from bath walls and bottom. The foundation block is higedly connected with bumpers, which in turn are attached to foundation block by means of hinged lever. The lever connects foundation block with support member of bumper. Bumper has resilient member formed as two serially connected elastic resiliently-damping members divided with washer. Pendulum suspension means of the bumper is made as threaded pin having the first end connected to hinged lever and the second end connected to nut and thrust washer, which are connected to bush. The bush is attached to resilient member. The thrust washer is made of resilient material. Resiliently-damping member is formed as pleached strands or tangled wires.
 Foundation supported by disk springs / 2282000
Vibroinsulated foundation comprises bath and foundation block arranged in the bath so that the foundation block is spaced from bath walls and bottom. The foundation block is higedly connected with bumpers, which in turn are attached to foundation block by means of hinged lever. The lever connects foundation block with support member of bumper. The bumper has pendulum suspension means made as threaded rod with spherical profile on one rod end and threaded bush also having spherical profile. Both spherical profiles cooperate with conical surfaces of upper and lower plates correspondingly. Resilient member is made as serially connected resilient discs connected with outer bush surface along inner disc diameters. One bush end is fixedly secured to the base, another bush end is slidably installed in guiding bush.
 Vibroinsulated foundation supported by disk springs / 2282001
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 Foundation on vibroprotective elements / 2383686
Invention is related to means of protection against hazardous effect of vibration and may be used in construction, in particular in arrangement of vibration-insulated foundations for machines and equipment with dynamic loads. Foundation on vibroprotective elements comprises bath, foundation unit arranged in it with clearance versus walls and bottom and hingedly joined to vibration isolators installed in bath bottom. Vibration isolators are joined to foundation unit by means of hinged lever, which connects foundation unit to support element of vibration isolator, which comprises elastic element, body and pendulum suspension. Body is arranged in the form of box with lower base and upper plate with hole for threaded pin of pendulum suspension, which are connected to each other by three side ribs, with creation of window for accommodation of support lever, on which vibration-insulated object is arranged. Elastic element is arranged in the form of three serially connected elements: elastic ones and elastic-damping element arranged in between. Elastic elements with one of their bases are installed in bushes, which are fixed accordingly on upper plate of body and cover, and rest against washers with their other bases, and washers are joined with elastic-damping element. Pendulum suspension is arranged in the form of threaded pin, which is connected by one end to support lever for fixation of vibration-insulated object, and by other end - to nut and thrust washer, which is joined to cover attached to elastic element. Elastic-damping element is arranged in the form of steel-wire weaving or metal thread waste.
 Method for erection of monolithic foundation for nuclear power plant and arrangement of nuclear power plant foundation / 2390610
Inventions relate to the field of foundation engineering of deep burial for important objects, such as nuclear power plants. Method for erection of nuclear power plant foundation consists in engineering-geological survey with detection of soil foundation layers depth, which complies with depth of active compressing thickness H, its physical-mechanical properties: angle φ of inner friction, c - specific adhesion, γ - density, E 0 - module of common deformation, µ 0 - coefficient of Poisson, which correspond to design elastic compressing load ![]() under deep buried foundation, in erection of mine pit with shape that corresponds to foundation, filling of filled layer of soil onto mine pit bottom and its compaction, erection of curb with reinforcement frame inside and its filling with high grade concrete. Foundation, which is solid in plan, is given convex spherical shape, which is inscribed in plan into configuration of monolithic foundation by radius of circumference, radius of sphere is identified by given dependencies, as well as maximum angle of elastic semi-contact of foundation sphere with soil foundation, pressure of structural tensile strength of foundation, central critical pressure under center of sphere in maximum elastic base. Bottom of mine pit for concave foundation is arranged with response spherical groove.
 Method for erection of foundation for machines and arrangement of foundation for machines / 2392386
Method for erection of foundation under machines consists in deepening of massive reinforced concrete foundation foot of rectangular or prismatic shape in plan into ground base by ≥¼ of its height, but at least 1 m, its hydraulic insulation against hazardous effect of aggressive ground waters and arrangement of centre of gravity of machine and center of gravity of foundation foot area on the same vertical line, at the same time support surface of foundation is accepted as having area calculated according to given dependence. Support surface of foundation, which is rectangular in plan, is arranged with foot of spherical convex shape, at the same time given dependences are used to identify radius, angle of sector of elastic half-contact of sphere with ground, pressure of structural strength of ground for stretching, critical pressure under center of sphere, besides sphere of foundation is deepened. Support spherical surface is prevented against displacements with slippage and against tilting under action of external dynamic load by increasing edge horizontal support part of foundation rectangular in plan, protruding beyond edges of spherical support central surface, or by anchoring foundation to soil by means of piles. Also arrangement of foundation for machines is proposed.
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FIELD: mechanical engineering, particularly large electrical machines and foundations for turbogenerator and hydraulic generators.
SUBSTANCE: foundation slab comprises stator body base including support part connected with foundation. Arranged between support part and foundation is damping panel including reinforcement formed as vertical rods. Foam plastic member is put on the vertical rods and grouted with concrete grout. Vertical rods are connected one to another in horizontal plane with wire arranged at least in two levels in vertical plane of damping panel. Vertical rods extend through support part, pass into stator body base and into foundation.
EFFECT: reduced dynamic pressure applied to foundation slab and increased structural rigidity.
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The invention relates to the field of electrical engineering, mainly to large electric machines, and more particularly to Foundation plates, designed for the installation of the turbo-and hydrogenerators.
Known devices [1, 2], which consist of reinforced concrete, including concrete and rebar. To reduce the deflection plate and allow regulation of the stiffness properties of the plate it is provided with notches on its side surfaces which taper in height and width in the direction from the periphery of the plate to the middle of it, and on the walls of the cutouts perform reinforcement bars with fixing them wire mesh [1] or between the turbine and the Foundation place of the supporting part is made of welded steel and integrally connected to the Foundation by means of bolts and concrete, as well as place the base part and the metal strip [2].
Known construction reduces unwanted deflections of the plate, however, when using the known constructions, the pressure on the Foundation from the electric machine is transmitted almost entirely that long-term dynamic loads on the stove, resulting in adverse operating regimes of large electric machines, such as acceleration and braking, can lead to premature mechanical damage of concrete on the first, that can lead to an emergency situation. In addition, the rigid connection of the stator housing with a concrete base eliminates the possibility of movement of the stator relative to the base plate in the axial direction, for example, that it is necessary to ensure the appearance of rotating drums [3].
It is also known a device in which is provided a weakened and limited lifting the base of the housing from the base plate in the axial direction, which is achieved due to the fact that as a fastening means is used passing through the base of the cylindrical pin, allowing easy lifting of the case base [3]. the fastening device of the electric machine, high power horizontal shaft carried on a Foundation made of concrete. The base of the stator rests on the base plate and fixed by means of special devices, which limit the movement of the stator relative to the base plate in the radial and axial directions.
When the shock occurs rotating moment is possible weakened and limited lifting the base of the housing from the base plate by using passing through the base of the cylindrical pin, allowing easy lifting of the case base. However, as the devices [1, 2], the pressure on the Foundation from the electric machine is transmitted almost completely under extreme operating modes of the electric machine can disrupt the mechanical strength of a base plate with subsequent negative consequences.
Object of the present invention is to reduce the dynamic pressure on the base plate with a simultaneous increase in the rigidity of the structure.
The problem is solved due to the fact that in a base plate designed for installation under the turbine, consisting of a Foundation, which was a concrete, including concrete and rebar, the supporting part integrally connected with the base by means of fastening means between the supporting part and the Foundation hosted a damping plate, made of foam, concrete and reinforcement in the form of a vertical rod, which passes through the damping plate, the supporting part and is the basis and Foundation of the stator housing, and the terminals are connected in the horizontal plane wire, placed on at least two levels in the vertical plane the damping plate.
Between the supporting part and the Foundation of the damping plate, made of Styrofoam and concrete and through it the valve is made in the form of a vertical stem is th, included in the supporting part, with openings and interconnected in a horizontal plane wire, placed on at least two levels in the vertical plane, provides damping of the dynamic pressure on the Foundation due to the damping effect of the damping plate, which is ensured by the fact that the rods passing through the foam, interconnected by wire on at least two levels in the vertical plane, and a connection base plate with the supporting part by means of rods increases the rigidity of the structure as a whole, and optionally provides the ability to move the base of the stator housing relative to the base plate.
New in the invention is the placement of the damping plate between the supporting part and the base, which is made of foam and concrete, and pass through the armature is made in the form of rods, connected by a wire in a horizontal plane at least at two levels in the vertical plane and connected to the support plate. This set of new features from the prior art have been identified that allows to make a conclusion on compliance of the claimed invention, the condition of patentability "inventive step".
The invention participation in the workforce is employed in the drawing, which shows the base of the stator housing 1, a base part 2, the damping plate 3, Foundation 4, the rods 5,the wire 6, the foam 7.
The damping plate 3 is a structure comprising rods 5 connected by a wire 6. On the rods 5 seated figure foam, filled with concrete mortar. This design of the damping plate creates a cushioning effect due to the connection terminals wire on at least two levels vertically and placed in the foam, filled with concrete solution that provides damping of the dynamic pressure on the Foundation, and the placement of the rods throughout the depth of the damping plate and the supporting part with the capture of the base of the stator and of the Foundation increases rigidity and restricts the movement of the stator relative to the base plate in the radial direction, and you are experiencing the shock of the rotating moment of the availability of lifting the base of the stator housing by mounting the base on the rods.
Implementation of the claimed invention, the technical complexity is not, as implemented through the common elements and materials. In addition to the use of the claimed device in large-scale Electromechanical engineering, it can be used in marine conditions as fu is dementa under power machines and units dynamic load which is most noticeable during adverse weather conditions, which allows to make a conclusion on compliance of the claimed invention, the condition of patentability "industrial applicability".
Sources of information
1. USSR author's certificate No. 1463869.
2. Titov, V.V., Khutoretsky G.M., Zagorodniy G.P. Turbogenerators. Calculation and design. HP, Energy. 1967, s-151.
3. German patent No. 2440548.
Base plate under the turbo-generator that includes a base housing of the stator of the supporting part connected to the base, characterized in that between the support part and the Foundation hosted a damping plate, comprising a valve in the form of a vertical rod, which is mounted foam, filled with concrete floor, connected by a horizontal wire, placed on at least two levels in the vertical plane of the damping plate, and vertical rods pass through the abutment part is fixed in the base of the stator and in the Foundation.
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