CN102493689B - Easily detachable water turbine maintenance platform - Google Patents
Easily detachable water turbine maintenance platform Download PDFInfo
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- CN102493689B CN102493689B CN 201110423423 CN201110423423A CN102493689B CN 102493689 B CN102493689 B CN 102493689B CN 201110423423 CN201110423423 CN 201110423423 CN 201110423423 A CN201110423423 A CN 201110423423A CN 102493689 B CN102493689 B CN 102493689B
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- girder
- inspection platform
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- top rail
- draft tube
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Abstract
The invention discloses an easily detachable water turbine maintenance platform, which comprises a platform surface and carrying beams arranged below the platform surface and used for carrying the platform surface, and is characterized in that brackets are mounted on both sides of a mandoor of a draft tube of the water turbine, and an upper cross beam and a lower cross beam are mounted between the brackets on both sides; the horizontal distance between the lower cross beam and the mandoor is smaller than that between the upper cross beam and the mandoor; rollers are arranged on opposite side surfaces of the upper cross beam and the lower cross beam respectively; a height adjusting device is mounted between the upper cross beam and the brackets; the carrying beams comprises a main beam and an auxiliary beam; the main beam of the maintenance platform is mounted between the rollers of the upper cross beam and the rollers of the lower cross beam; the auxiliary beam of the maintenance platform is mounted between the main beam and the tube wall of the draft tube; and the wall tube of the draft tube is provided with a matching part matched with the end part of the main beam to carry the main beam. The maintenance platform provided by the invention has the advantages of compact structure, convenience and stableness in use, easiness for mounting and dismounting, and the like.
Description
Technical field
The present invention relates to conventional francis turbine, and the draft tube inspection platform of pump turbine, especially a kind of hydraulic turbine inspection platform of easy mounting or dismounting.
Background technology
The main beam supporting mode of existing hydraulic turbine inspection platform mainly contains two kinds, lifting and paperback.
Lifting is existing inspection platform a kind of mode commonly used, in Chinese invention patent bulletin CN 101560826 a kind of elevation type tail water overhauling platform is disclosed for example, comprise lifting gear, the platform girder, the platform auxiliary girder, brace summer and landing slab, described lifting gear connection is fixedly arranged on the platform girder, described platform auxiliary girder intersection is fixed on this platform girder, described brace summer is fixedly arranged on this platform girder and/or the platform auxiliary girder, the two ends of brace summer are respectively with this platform girder and/or this platform auxiliary girder is connected and fixing, and described landing slab is installed in described platform girder, on platform auxiliary girder and the brace summer; The present invention makes a two-dimensional plane operating position expand three-dimensional three-dimensional operating position to by the lifting of platform, makes inspection, maintenance and the maintenance of draft tube inwall and turbine blade any part become very convenient.All need to use crane gear and suspension arrangement thereof in the whole process of lifting, earlier of girder is sent into and hangs on the boom hoisting from mandoor, drag girder and enter Taper Pipe, this process middle girder deadweight is excessive, be not easy to the manpower auxiliary operation, and edge in the fragile mandoor.Under the state that girder tilts, sling in the other end then, by the two ends cooperation girder is hung in Taper Pipe fully, and divide successively respectively two ends to be inserted and set up in the lining of hole, the cooperation of two cover lifting appliances is difficult relatively in this process, and the attitude of girder is wayward, may cause the damage of Taper Pipe back boxing flow-passing surface simultaneously.At last, this scheme tolerance in design, production and the installation of girder axial dimension is less, and the adjusting of horizontal direction is difficult for realizing having certain potential safety hazard in installation process.
The paperback mode is mainly used in large-scale water turbine, generally is respectively to offer a wicket in Taper Pipe mandoor both sides, and inspection platform girder level thus pushes into Taper Pipe inside, and inserts and to be tapped to the setting up in the lining of hole of opposite.This kind mode has alleviated mounting hardness with respect to the lifting mode, but establishes the twice wicket on Taper Pipe in addition, has influenced interior measurement flow channel, and the difficulty that has increased design simultaneously and made has also been brought the integrity problem of sealing simultaneously.In addition, in order to reduce the frictional force that girder pushes, several groups of rollers need be set up in the gallery both sides, and the installation basis of default girder groove and roller caused concrete top dressing complexity when this just required fluid concrete, and space availability ratio is low etc.
Summary of the invention
The purpose of this invention is to provide a kind of compact conformation, simple, can realize the hydraulic turbine inspection platform of easy mounting or dismounting of the installation and removal of inspection platform safely.
Technical scheme of the present invention is as follows:
A kind of hydraulic turbine inspection platform of easy mounting or dismounting, comprise flat upper surface and be positioned at the carrier bar that is used for the carrying platform face under the flat upper surface, it is characterized in that: the mandoor both sides at turbine draft tube are separately installed with support, top rail and lower transverse beam are installed between the support of both sides, the horizontal range of described lower transverse beam and mandoor is furnished with roller less than the horizontal range of described top rail and mandoor respectively on the top rail side relative with lower transverse beam; Between top rail and support, arrangement for adjusting height is installed; Described carrier bar comprises girder and auxiliary girder, and the girder of inspection platform is installed between the roller of top rail and lower transverse beam, and the auxiliary girder of inspection platform is installed between the tube wall of girder and draft tube; Tube wall at draft tube has the auxiliary section that cooperates support main beam with the girder end.
Supplementary technology scheme of the present invention is as follows:
Preferably, described auxiliary section comprises the depression that cooperates with the insertion section on the insertion section of girder end and the tube wall.
Preferably, described insertion section is flat steel plate, and described depression is the flat hole along draft tube interior conduit length direction.
Preferably, described support is leg-of-mutton support, and a limit of leg-of-mutton support intermediate cam shape is installed on the wall of both sides of mandoor.
Preferably, described top rail is installed in the vertex of a triangle position of triangular supports.
Preferably, at girder operating handle is installed.
Preferably, described auxiliary girder is to be installed between the tube wall of girder and draft tube with draft tube center radial.
Preferably, the arrangement for adjusting height between described top rail and the support is the jack bolt between support and the top rail.
The invention has the beneficial effects as follows: can utilize the existing handle in mandoor both sides to close screw, fix two supports respectively, and form removable, a firm frame construction by two crossbeams up and down closing connection.Girder is installed between the upper and lower crossbeam, and crossbeam can provide girder horizontal movement track, and adjustable mode provides enough chucking powers under the prerequisite that fully reduces horizontal sliding frictional force, and supporting main beam is conducted oneself with dignity and avoided occurring toppling in the girder propelling movement process.Therefore only need provide less manpower the auxiliary horizontal movement that can realize girder, and compact conformation, mounting or dismounting convenient, need not embedded foundation and support, save the space.Further, but top rail has certain regulatory function, is realized by the jack bolt of both sides, to satisfy on-the-spot mounting condition.Further, owing to carried out the structural adjustment of carrier bar, girder can adopt common material section bar, and two internodes adopt the bolt splicing, significantly saves and produces installation cost and cycle.In some preferred embodiment, draft tube liner only need be offered small-sized square hole or oblong aperture and be used for setting up girder and auxiliary girder, utilizes the riser in section bar cross section to insert, and can realize the supporting of major-minor beam, reduces the destruction of runner as much as possible.
Description of drawings
The present invention will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the schematic diagram of inspection platform embodiment of the present invention.
Fig. 2 is vertical view embodiment illustrated in fig. 1.
The specific embodiment
Specific embodiments of the invention, as depicted in figs. 1 and 2, a kind of hydraulic turbine inspection platform of easy mounting or dismounting, this platform utilizes the existing handle in draft tube 1 mandoor, 2 both sides to close screw, fix two A-frames 7 respectively, top rail 5 and lower transverse beam 6 are installed between the support 7 of both sides, form removable, a firm frame construction.The horizontal range of described lower transverse beam 6 and mandoor 2 is furnished with roller respectively, as girder 3 horizontal movement tracks less than the horizontal range of described top rail 5 with mandoor 2 on the top rail side relative with lower transverse beam.And, between top rail 5 and support 7, arrangement for adjusting height is installed, realized that by the jack bolt of both sides to satisfy on-the-spot mounting condition, adjustable mode can provide enough chucking powers to girder under the prerequisite that fully reduces horizontal sliding frictional force.The carrier bar of inspection platform comprises girder 3 and auxiliary girder 9, the girder 3 of inspection platform is installed between the roller of top rail 5 and lower transverse beam 6, the auxiliary girder 9 of inspection platform is installed between the tube wall of girder 3 and draft tube 1 with draft tube 1 center radial, and auxiliary girder 9 is fixed on the girder 3 by securing member 10; Be equipped with for the operating handle 4 that pushes girder at girder 3, at the tube wall of draft tube 1 auxiliary section that cooperates support main beam with the girder end arranged, i.e. small-sized square hole or the oblong aperture of offering on the Taper Pipe back boxing of draft tube.A whole set of platform is installed and removed conveniently, be need not embedded foundation and supports, saves the space.
In said structure, girder adopts common material section bar, and two internodes adopt the bolt splicing, can significantly save and produce installation cost and cycle, adopt two parallel girders 3, has parallel short beam 8 to connect between the girder 3.The Taper Pipe back boxing need offer small-sized square hole or oblong aperture is used for setting up girder and auxiliary girder, utilizes the riser in section bar cross section to insert, and can realize the supporting of major-minor beam, reduces the destruction of runner as much as possible.
Inspection platform in the present embodiment, after two main beam supportings put in place, the centre is connected and fixed closing by bolt with short beam, 60 calibration set up 4 auxiliary girders 9 then, the same back boxing support holes of inserting draft tube with the main beam structure form of one end, be oblong aperture, therefore other end bolt forms stable trussed construction on girder.Improve the installation tolerance of physical dimension on the one hand, guaranteed integrally-built stability and safety on the other hand.
Whole platform support and carrier bar are laid flat upper surface at carrier bar after installing, and namely lay the platform plank, and laying plank zone be stable triangle, and by a plate and bolt the mode constrained motion of closing, the safety of assurance use.Simultaneously, inner little, in light weight, the Bolt Connection of the equal size of structural member auxiliary girder, short beam and plank of installing of all Taper Pipes is convenient to artificial mounting or dismounting and safety is installed.
Insertion section flat steel plate preferably in above-described embodiment, described depression is the flat hole along draft tube interior conduit length direction.
Disclosed all features in this manual, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this manual (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
The present invention is not limited to the aforesaid specific embodiment.The present invention expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (8)
1. easy hydraulic turbine inspection platform of mounting or dismounting, comprise flat upper surface and be positioned at the carrier bar that is used for the carrying platform face under the flat upper surface, it is characterized in that: the mandoor both sides at turbine draft tube are separately installed with support, top rail and lower transverse beam are installed between the support of both sides, the horizontal range of described lower transverse beam and mandoor is furnished with roller less than the horizontal range of described top rail and mandoor respectively on the top rail side relative with lower transverse beam; Between top rail and support, arrangement for adjusting height is installed; Described carrier bar comprises girder and auxiliary girder, and the girder of inspection platform is installed between the roller of top rail and lower transverse beam, and the auxiliary girder of inspection platform is installed between the tube wall of girder and draft tube; Tube wall at draft tube has the auxiliary section that cooperates support main beam with the girder end.
2. the hydraulic turbine inspection platform of easy mounting or dismounting according to claim 1 is characterized in that: described auxiliary section comprises the depression that cooperates with the insertion section on the insertion section of girder end and the tube wall.
3. the hydraulic turbine inspection platform of easy mounting or dismounting according to claim 2, it is characterized in that: described insertion section is flat steel plate, described depression is the flat hole along draft tube interior conduit length direction.
4. according to the hydraulic turbine inspection platform of claim 1 or 2 or 3 described easy mounting or dismounting, it is characterized in that: described support is leg-of-mutton support, and a limit of leg-of-mutton support intermediate cam shape is installed on the wall of both sides of mandoor.
5. the hydraulic turbine inspection platform of easy mounting or dismounting according to claim 4, it is characterized in that: described top rail is installed in the vertex of a triangle position of triangular supports.
6. the hydraulic turbine inspection platform of easy mounting or dismounting according to claim 4 is characterized in that: at girder operating handle is installed.
7. the hydraulic turbine inspection platform of easy mounting or dismounting according to claim 4, it is characterized in that: described auxiliary girder is to be installed between the tube wall of girder and draft tube with draft tube center radial.
8. the hydraulic turbine inspection platform of easy mounting or dismounting according to claim 4, it is characterized in that: the arrangement for adjusting height between described top rail and the support is the jack bolt between support and the top rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110423423 CN102493689B (en) | 2011-12-16 | 2011-12-16 | Easily detachable water turbine maintenance platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110423423 CN102493689B (en) | 2011-12-16 | 2011-12-16 | Easily detachable water turbine maintenance platform |
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| Publication Number | Publication Date |
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| CN102493689A CN102493689A (en) | 2012-06-13 |
| CN102493689B true CN102493689B (en) | 2013-08-21 |
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| CN 201110423423 Active CN102493689B (en) | 2011-12-16 | 2011-12-16 | Easily detachable water turbine maintenance platform |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104131540B (en) * | 2014-07-30 | 2016-01-06 | 国电大渡河检修安装有限公司 | Turbine-generator units draft tube inspection platform erection of main beam method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101560826A (en) * | 2009-05-21 | 2009-10-21 | 塞卡尔（北京）工业技术有限公司 | Elevation type tail water overhauling platform and manufacturing method and application thereof |
| CN201439638U (en) * | 2009-05-21 | 2010-04-21 | 塞卡尔（北京）工业技术有限公司 | Lifting tail-water inspection platform |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202008016780U1 (en) * | 2008-12-20 | 2009-06-18 | Matthäi Betriebsführungs-GmbH | Assembly platform construction for locking on a sea container as a lifting device for persons and materials for carrying out monthly work on tower elements of wind power and similar structures |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101560826A (en) * | 2009-05-21 | 2009-10-21 | 塞卡尔（北京）工业技术有限公司 | Elevation type tail water overhauling platform and manufacturing method and application thereof |
| CN201439638U (en) * | 2009-05-21 | 2010-04-21 | 塞卡尔（北京）工业技术有限公司 | Lifting tail-water inspection platform |
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| CN102493689A (en) | 2012-06-13 |
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