CN201972424U - Supporting platform system for steam turbine generator unit arranged at high position - Google Patents
Supporting platform system for steam turbine generator unit arranged at high position Download PDFInfo
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- CN201972424U CN201972424U CN2011200118772U CN201120011877U CN201972424U CN 201972424 U CN201972424 U CN 201972424U CN 2011200118772 U CN2011200118772 U CN 2011200118772U CN 201120011877 U CN201120011877 U CN 201120011877U CN 201972424 U CN201972424 U CN 201972424U
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Abstract
The utility model discloses a supporting platform system for a steam turbine generator unit arranged at a high position, which can meet the conditions of technical arrangement and safe and stable operation of the steam turbine generator unit arranged at a high position, and also can determine the vibration influence on a supporting platform structure under the conditions that a steam turbine generator runs normally and under various unfavorable working conditions by calculation, thereby judging the feasibility and the applicability of the high-position arrangement of the steam turbine generator unit arranged at a high position. The supporting platform system adopts the technical scheme that the system comprises a bedplate used for placing the steam turbine generator unit arranged at a high position, a vibration isolation system arranged below the bedplate, and a platform main framework arranged on the ground and used for placing the vibration isolation system.
Description
Technical field
The utility model relates to a kind of support platform structure scheme, relates in particular to the high-order realization of arranging the plateform system of Turbo-generator Set of supporting.
Background technology
The high-order specific implementation of Turbo-generator Set of arranging sees also a kind of novel steam generating set of Chinese patent application (patent No.: CN200710040128.0).This invention is a layout straggly with high and low axle, the length of high temperature and high pressure steam pipeline expensive in the steam pipe system and the pressure drop and the radiation loss of pipe-line system have significantly been reduced, improved the acting ability of unit, also reduced the gas-storing capacity of reheat system and the adjusting inertia of unit, and can make twice again the economy of hot unit be able to sufficient embodiment.This invention has utilized existing generating equipment, and the layout by twin shaft and twice heat again improve generating efficiency.And wherein twin shaft arrange the most important thing is with wherein one comprise that steam turbine and generator are positioned over a high position, thereby reach the minimizing high-temperature and pressure pipeline, improve the purpose of generating efficiency.
The technology arrangement of brand-new steam turbine generator must bring brand-new civil engineering structure to arrange, the layout of steam turbine generator support platform system particularly, itself and conventional power plant difference are: conventional power plant steam turbine generator support platform system layout is at low level, general height is at 12m～17m, general steam turbine generator basis arranges and main building is thrown off mutually, and aseismic joint is set, cut off the influence of the vibration on steam turbine basis to the main building structure by such structural configuration, simultaneously because the low level layout, rigidity requirement for support platform is lower, and the rigidity of steam turbine pedestal can satisfy the requirement that safely and steadily runs of steam turbine generator fully by traditional computational methods.And the utility model prerequisite is a steam turbine generator high position layout, generally is arranged in the height greater than 30m, and the layout on high-order layout Turbo-generator Set basis has also proposed brand-new requirement for the layout and the design of the support platform system of structure.
Fig. 1 is the high-order schematic diagram of arranging Turbo-generator Set and conventional steam turbine generator position in power plant's main building.The chances are in conventional steam turbine generator 10 positions height 12-17 rice is high-orderly arranged Turbo-generator Set 12 positions the chances are 30-100 rice, directly is supported in the main building floor.As can be seen from Figure 1, the designing requirement of the support platform system of high-order layout Turbo-generator Set is diverse, must do brand-new layout and design to the support platform system, guaranteeing high-order arranging safely and steadily running of Turbo-generator Set, and reduce the vibration effect of the operation of high-order Steam Turbine to whole support platform.
The steam turbine generator of conventional power plant generally is arranged within absolute altitude 15m～20m scope, so the support platform of steam turbine generator directly adopts steel concrete platen and the whole self-supporting concrete frame structure that waters of post, simultaneously support platform and and the main building main structure throw off, with the operation of avoiding Turbo-generator Set influence to main building.This structural system rigidity is big and power transmission is clear and definite, can satisfy the requirement of each side fully according to traditional method for designing.And steam turbine generator adopts high-order the layout, arrange as still original support platform, can imagine that a width only has 12～18m to shelve platform, highly have greater than 30m, its rigidity obviously can not satisfy the requirement on high-order steamer generating basis, as increase width for this reason, owing to will throw off with traditional main building, make that this steam turbine support platform is extremely huge, such structure is extremely uneconomical rational.
The utility model content
The purpose of this utility model is to address the above problem, a kind of high-order Turbo-generator Set support platform system that arranges is provided, can solve in the technology arrangement and safe and stable operation condition that satisfy high-order layout Turbo-generator Set, also can pass through to calculate and determine that steam turbine generator influences the support platform structural vibrations under normal operation and various unfavorable operating mode, thereby judge high-order feasibility and applicability of arranging the high-order layout of Turbo-generator Set.
The technical solution of the utility model is: the utility model has disclosed a kind of high-order Turbo-generator Set support platform system that arranges, comprises the main platform body framework that is used to place the high-order platen of arranging Turbo-generator Set, is installed in the vibrating isolation system of platen below and installs on the ground and be used to shelve vibrating isolation system.
According to a high-order embodiment who arranges Turbo-generator Set support platform system of the present utility model, platen is the steel concrete platen.
According to a high-order embodiment who arranges Turbo-generator Set support platform system of the present utility model, vibrating isolation system comprises any combination of spring, damper, rubber pad or three.
According to a high-order embodiment who arranges Turbo-generator Set support platform system of the present utility model, the main platform body framework comprises beam, post and continuous support and platform thereof.
According to a high-order embodiment who arranges Turbo-generator Set support platform system of the present utility model, be the relation of directly shelving between platen, vibrating isolation system and the main platform body framework.
According to a high-order embodiment who arranges Turbo-generator Set support platform system of the present utility model, between platen, vibrating isolation system and the main platform body framework relation of directly welding.
According to a high-order embodiment who arranges Turbo-generator Set support platform system of the present utility model, platen arranges that by a stone bolt and a high position Turbo-generator Set links to each other.
According to a high-order embodiment who arranges Turbo-generator Set support platform system of the present utility model, the main building structure of main platform body framework and thermal power plant combines together, and platen is positioned at the framework of main building.
According to a high-order embodiment who arranges Turbo-generator Set support platform system of the present utility model, platen apart from the height on ground greater than 30 meters.
According to a high-order embodiment who arranges Turbo-generator Set support platform system of the present utility model, the main platform body framework is steel work or reinforced concrete structure or steel-steel concrete combination construction.
The utility model contrast prior art has following beneficial effect: the high-order Turbo-generator Set support platform system that arranges of the present utility model comprises the high-order steel concrete platen of arranging Turbo-generator Set of placement, shelve the vibrating isolation system of steel concrete platen, shelve beam, post and the continuous support and the platform thereof of vibrating isolation system.This structural system is to realize one of high-order key technology of arranging this technology arrangement of Turbo-generator Set.The contrast prior art, the utility model can satisfy the requirement of the safe and stable operation of high-order Turbo-generator Set of arranging fully, is a guardian technique of configuration aspects in following this energy-efficient generation technology.
Description of drawings
Fig. 1 shows the high-order schematic diagram of arranging steam turbine generator and conventional steam turbine generator position in power plant's main building.
Fig. 2 is exemplary shows high-order system schematic of arranging the embodiment of steam turbine generator support platform system of the present utility model.
Fig. 3 A～3C is exemplary shows plan view and the sectional drawing that amplify the high-order part of arranging the embodiment of Turbo-generator Set support platform system of the present utility model.
Fig. 4 is exemplary shows high-order system's design flow diagram of arranging Turbo-generator Set support platform system of the present utility model.
The specific embodiment
The utility model will be further described below in conjunction with drawings and Examples.
Fig. 2 shows high-order system architecture of arranging the embodiment of Turbo-generator Set support platform system of the present utility model.See also Fig. 2, the high position of present embodiment arranges that Turbo-generator Set support platform system comprises the platen 300 of placing high-order layout Turbo-generator Set 20, the main platform body framework 304 of shelving the vibrating isolation system 302 of platen 300 and shelving vibrating isolation system 302.Wherein platen 300 is steel concrete platens, and vibrating isolation system 302 comprises any combination of spring, damper, rubber pad or this three, and main platform body framework 304 comprises beam, post and continuous support member and platform thereof.Can be the relation of directly shelving between platen 300, vibrating isolation system 302 and the main platform body framework 304, also can be the relation of directly welding.
Please be simultaneously referring to Fig. 3 A～3C, steel concrete platen 300 is one and directly shelves the high-order reinforced concrete thick plate of arranging Turbo-generator Set 20, and closely link to each other with Turbo-generator Set 20 by stone bolt, the effect of this slab be fixedly Turbo-generator Set 20, increase the quality of Turbo-generator Set 20, guarantee the safe and stable operation of Turbo-generator Set 20, its thickness need be determined by calculating, guarantee the efficient of bottom vibrating isolation system 302 and the performance of effect.Platen 300 apart from ground level greater than 30 meters.
Vibrating isolation system 302 is the system and devices that are used for isolating vibration, comprises various devices or its combinations such as spring, damper, rubber pad.Its group number, model and layout are determined by calculating.Effect by vibrating isolation system 302, can reduce on the one hand with basic and eliminate because the main building structural vibrations that the rotation of high-order layout Turbo-generator Set 20 causes also can reduce on the other hand because the Turbo-generator Set 20 that geological process produces and the displacement and the acceleration of steel concrete platen 300 thereof.
Shelving the beam, post of vibrating isolation system 302 and continuous support thereof and platform actual in the utility model is the part of power plant's main building structure, beam, post, support and the platform of shelving spring vibration isolation system 302 among Fig. 2 as can be seen fully and the main building structure combine together, high-order steam turbine is shelved platform and is positioned at power plant's main building framework, has also placed other process equipments such as heater, oxygen-eliminating device, coal bunker, coal conveyer belt, pipeline in this framework.High-order layout Turbo-generator Set platen, vibrating isolation system had both been supported in this design that combines together, had also supported other equipment of power plant and pipeline.These beams, post and continuous support and platform thereof can adopt steel work, reinforced concrete structure and other various structural shapes, its support, beam, post are arranged the layout that also is not limited only in the accompanying drawing, as long as satisfy high-order requirement and process pipe layout requirement of arranging the Turbo-generator Set safe and stable operation.Therefore this equipment and technology arrangement mode have formed the layout of high-order layout Turbo-generator Set support platform system just, corresponding design and calculation method thereby develop.
The high position of present embodiment arranges that the layout and the designing requirement of Turbo-generator Set support platform system is as follows.
A) layout of support platform system should satisfy the equipment of technology specialty, the requirement of pipe arrangement, owing to be the high-order Turbo-generator Set of arranging, its equipment and pipe arrangement have its particularity, also arrange that for a high position structural configuration of Turbo-generator Set support platform system has proposed new requirement.
B) requirement of determining to satisfy manufactory and pipe arrangement of the profile of steel concrete platen 300 and thickness in the support platform system, the quality of platen 300 is enough to the high position layout Turbo-generator Set 20 on anchoring top, the requirement of the power of disturbing that produces when stablizing the unit rotor rotation simultaneously simultaneously.
C) layout of vibrating isolation system 302 must satisfy the load that bears high-order layout Turbo-generator Set 20 and steel concrete platen 300 thereof, the effectively requirement of vibration isolation again simultaneously, and the vibration isolation efficiency of general vibrating isolation system 302 requires greater than 90～98%.
D) shelve the beam of vibrating isolation system 302, the requirement of post rigidity, because high-order Turbo-generator Set 20 of arranging is a dynamic foundation, and and be held on the beam column of main building, for fear of coupled vibrations, vibrating isolation system 302 is arranged in Liang Shangshi, beam rigidity is greater than the rigidity of vibrating isolation system 302 more than 10 times, and pillar rigidity generally also can satisfy rigidity requirement.
E) high-order layout Turbo-generator Set 20 satisfies the balance mass grade under the dynamic load effect, and this standard is generally proposed by equipment manufacturing, and regulation can propose the requirement and the assessment method of reference with reference to corresponding code requirement in the utility model if do not have clearly.Assessment method adopts disturbs the balance mass grade of the vibration velocity evaluation region of its bearing support under the power effect as high position layout Turbo-generator Set basis when the operation of high position layout Turbo-generator Set, see following table for details:
The high-order bearing of turbo generator set seat vibration velocity evaluation region border recommendation of arranging of table 1
F) the high-order Turbo-generator Set of arranging is under the earthquake operating mode, and the seismic forces of the transmission by the support platform system should satisfy manufactory's requirement.
G) should there be enough horizontal rigidities in the support platform system, to satisfy high-order requirement of arranging the safe and stable operation of Turbo-generator Set, it is that high-order maximum displacement of arranging that Turbo-generator Set is shelved should be less than H/500 (H shelves height for high-order layout Turbo-generator Set) that the utility model also provides reference value.
H) high-order requirement of arranging the displacement balance of Turbo-generator Set.Owing to adopt the high-order Turbo-generator Set support platform system supporting steam turbine generator of arranging, therefore high-orderly arrange that Turbo-generator Set and steel concrete platen thereof inevitably exist level and vertical displacement, and each is shelved an excessive meeting of displacement difference and directly influences high-order the safely and steadily running of Turbo-generator Set of arranging.Therefore this requirement on the one hand of essential consideration in a high position is arranged the layout of Turbo-generator Set support platform system and designed.
I) human comfort requirement.The vibration that can produce trace for the support platform system in service of high-order layout Turbo-generator Set, in the designing and calculating of the promptly high-order layout Turbo-generator Set of the utility model support platform system, must calculate this trace vibration and whether satisfy the human comfort requirement.And this requirement has provided reference value in the utility model, and suggestion is with the criterion of effective vibration velocity as high position layout steam turbine generator basis ambient environment vibrations, and recommended value is as follows:
Table 2 suggestion amplitude standard
High-order design cycle of arranging Turbo-generator Set support platform system as shown in Figure 4, flow process as described below is adopted in the design of plateform system.
At first arrange that according to a high position the makers' requirement of Turbo-generator Set determines the profile and the size of steel concrete platen, secondly, steamer generating Based Quality balance level, the situation of seismic forces and the requirement of vibration isolation efficiency are by calculating parameters such as the thickness of determining the steel concrete platen and the rigidity of selecting vibrating isolation system, damping.Then according to the equipment of related process, the requirement of pipe arrangement, and requirements such as high-order requirement of arranging the displacement balance of Turbo-generator Set, horizontal rigidity, tentatively determine high-order beam, post and the continuous support thereof of Turbo-generator Set support platform system, the layout of platform of arranging.On the basis that the layout of the beam of spring layout, parameter and platform supports plateform system, post and continuous support thereof, platform is tentatively determined, calculate corresponding beam size according to the requirement of rigidity.If this beam is oversize, influence the technology specialty and arrange pipeline, then choose the platform arrangement again, determine the beam size by the beam Rigidity Calculation again.Like this cycle calculations draws the size of supporting beam.Import equipment and other relevant load of whole main building then, arrange according to a high position that requirement, the requirement of horizontal rigidity, the requirement of mass balance grade, the human comfort of the displacement balance of Turbo-generator Set require, whole checking computations are done in the requirement of vibration isolation efficiency again as, which dissatisfied high position that must rearrange is arranged Turbo-generator Set support platform system, so circulation is till the layout of the support platform system that is satisfied technology arrangement and above-mentioned every requirement simultaneously.So far, a high position arranges that Turbo-generator Set support platform system is selected substantially.Again the whole high-order Turbo-generator Set support platform system that arranges is optimized design at last, adjust as platform cast-in-situ concrete plate thickness, the optimization of beam column and supporting section etc. make support platform system platform more reasonable stress, after optimization, check again.
The those of ordinary skills that offer of the foregoing description realize and use of the present utility model; those skilled in the art can be under the situation that does not break away from invention thought of the present utility model; the foregoing description is made various modifications and variation; thereby protection domain of the present utility model do not limit by the foregoing description, and should be the maximum magnitude that meets the brand-new property feature that claims mention.
Claims (10)
1. a high position is arranged Turbo-generator Set support platform system, it is characterized in that, comprise the main platform body framework that is used to place the high-order platen of arranging Turbo-generator Set, is installed in the vibrating isolation system of platen below and installs on the ground and be used to shelve vibrating isolation system.
2. the high-order Turbo-generator Set support platform system that arranges according to claim 1 is characterized in that platen is the steel concrete platen.
3. the high-order Turbo-generator Set support platform system that arranges according to claim 1 is characterized in that vibrating isolation system comprises any combination of spring, damper, rubber pad or three.
4. the high-order Turbo-generator Set support platform system that arranges according to claim 1 is characterized in that the main platform body framework comprises beam, post and continuous support and platform thereof.
5. the high-order Turbo-generator Set support platform system that arranges according to claim 1 is characterized in that, is the relation of directly shelving between platen, vibrating isolation system and the main platform body framework.
6. the high-order Turbo-generator Set support platform system that arranges according to claim 1 is characterized in that, is the relation of directly welding between platen, vibrating isolation system and the main platform body framework.
7. the high-order Turbo-generator Set support platform system that arranges according to claim 1 is characterized in that platen arranges that by a stone bolt and a high position Turbo-generator Set links to each other.
8. the high-order Turbo-generator Set support platform system that arranges according to claim 1 is characterized in that the main building structure of main platform body framework and thermal power plant combines together, and platen is positioned at the framework of main building.
9. according to each described high-order Turbo-generator Set support platform system that arranges among the claim 1-8, it is characterized in that, platen apart from the height on ground greater than 30 meters.
10. the high-order Turbo-generator Set support platform system that arranges according to claim 1 is characterized in that the main platform body framework is steel work or reinforced concrete structure or steel-steel concrete combination construction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011200118772U CN201972424U (en) | 2011-01-14 | 2011-01-14 | Supporting platform system for steam turbine generator unit arranged at high position |
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| CN2011200118772U CN201972424U (en) | 2011-01-14 | 2011-01-14 | Supporting platform system for steam turbine generator unit arranged at high position |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352779A (en) * | 2011-10-20 | 2012-02-15 | 中国电力工程顾问集团华东电力设计院 | Structural system of steam turbine generator unit with novel structural arrangement |
| CN102359398A (en) * | 2011-10-20 | 2012-02-22 | 中国电力工程顾问集团华东电力设计院 | Suspension type high-position steam turbine generator platform system and steam turbine generating structure system |
| CN102383869A (en) * | 2011-10-20 | 2012-03-21 | 中国电力工程顾问集团华东电力设计院 | Novel steam turbine generator unit structural system |
| CN102587698A (en) * | 2011-01-14 | 2012-07-18 | 中国电力工程顾问集团华东电力设计院 | Supporting platform system for steam turbine generator unit arranged at high position |
| CN106870030A (en) * | 2017-04-22 | 2017-06-20 | 冯煜珵 | A kind of supporting system of Turbo-generator Set |
-
2011
- 2011-01-14 CN CN2011200118772U patent/CN201972424U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587698A (en) * | 2011-01-14 | 2012-07-18 | 中国电力工程顾问集团华东电力设计院 | Supporting platform system for steam turbine generator unit arranged at high position |
| CN102352779A (en) * | 2011-10-20 | 2012-02-15 | 中国电力工程顾问集团华东电力设计院 | Structural system of steam turbine generator unit with novel structural arrangement |
| CN102359398A (en) * | 2011-10-20 | 2012-02-22 | 中国电力工程顾问集团华东电力设计院 | Suspension type high-position steam turbine generator platform system and steam turbine generating structure system |
| CN102383869A (en) * | 2011-10-20 | 2012-03-21 | 中国电力工程顾问集团华东电力设计院 | Novel steam turbine generator unit structural system |
| CN102359398B (en) * | 2011-10-20 | 2014-10-22 | 中国电力工程顾问集团华东电力设计院 | Suspension type high-position steam turbine generator platform system and steam turbine generating structure system |
| CN102383869B (en) * | 2011-10-20 | 2016-03-23 | 中国电力工程顾问集团华东电力设计院有限公司 | Novel turbo generator unit structure system |
| CN106870030A (en) * | 2017-04-22 | 2017-06-20 | 冯煜珵 | A kind of supporting system of Turbo-generator Set |
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