CN105908774A - 'Less-dismantled' transformation method for steam turbine generator unit frame type foundation - Google Patents
'Less-dismantled' transformation method for steam turbine generator unit frame type foundation Download PDFInfo
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- CN105908774A CN105908774A CN201610273032.8A CN201610273032A CN105908774A CN 105908774 A CN105908774 A CN 105908774A CN 201610273032 A CN201610273032 A CN 201610273032A CN 105908774 A CN105908774 A CN 105908774A
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- turbo
- generator set
- steam turbine
- turbine generator
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/44—Foundations for machines, engines or ordnance
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a 'less-dismantled' transformation method for a steam turbine generator unit frame type foundation. When a steam turbine generator unit is replaced, a new steam turbine generator unit is fixed to a new reinforced concrete platen manufactured according to the load and installation requirements of the new steam turbine generator unit; vertical columns of the original steam turbine generator unit frame type foundation are retained, and an operation layer platform of the original steam turbine generator unit frame type foundation is dismantled; spring vibration isolation systems are arranged at the tops of the vertical columns, and the new reinforced concrete platen is stacked on the spring vibration isolation systems; and vibration coming from the new steam turbine generator unit through the new reinforced concrete platen is isolated through the spring vibration isolation systems, so that the strength, the stiffness and the dynamic characteristic of the remainder of the original frame type foundation can meet the operation requirements of the new steam turbine generator unit. According to the 'less-dismantled' transformation method for the steam turbine generator unit frame type foundation, when the steam turbine generator unit is replaced, the original foundation does not need to be dismantled completely, and only the operation layer platform of the original foundation needs to be dismantled; and accordingly, the project investment can be reduced, the project amount is decreased, the construction period is shortened, the construction difficulty is lowered, and the 'less-dismantled' transformation method is suitable for replacing the steam turbine generator unit within a space where the lifting height of a crane is limited.
Description
Technical field
The present invention relates to one " few dismounting " Turbo-generator Set FRAME FOUNDATION remodeling method, belong to steam turbine-generatot set foundation renovation technique field.
Background technology
Turbo-generator Set is the core component in thermal power plant.Along with expanding economy, the raising of production capacity and the needs improving environment, original Turbo-generator Set such as can not meet existing production needs, or when original Turbo-generator Set needs to change for some reason, it is necessary to existing equipment is carried out regenerate upgrading or replacement.But owing to the basic datas such as unit load position new, old and foundation bolt layout, bore size are inconsistent, it is impossible to install new unit on the basis of former, so needing former basis is transformed.
In the prior art, the usual way of transformation steam turbine-generatot set foundation is: all removed by former steam turbine-generatot set foundation or by former basis operating layer platform removal, make brand-new FRAME FOUNDATION by the load of new Turbo-generator Set and installation requirement again or make new operating layer platform is whole with former basic stand column and water, the situation that overall pulling down scheme differs greatly for unit new, old, turns layer terrace part Demolition Scheme for the less situation of unit difference new, old.Due to the condenser of former unit, air cooler, be connected the relevant devices such as main steam pipe and pipeline numerous；Former steam turbine-generatot set foundation post beam section size is big, concrete grade is high, arrangement of reinforcement is closeer；Narrow space in steam turbine building, it is impossible to utilize bursting work and large-scale dismounting facility；Reason that the protection difficulty of former unit peripheral equipment and pipeline is bigger etc., the whole Demolition Scheme in former basis exists that construction work amount is big, difficulty of construction big, construction period length and high cost shortcoming.Former basis operating layer terrace part Demolition Scheme, due to the change of new unit load position, new platform and old column connection integrity be difficult to ensure that, the reason such as the difference of the old and new's structure self, cause calculation assumption and actual junction structure, the power performance design calculation result on transformation basis to misfit with actual, cause and transform basis and there is potential safety hazard.
Summary of the invention
The technical problem to be solved in the present invention is: providing a kind of " few dismounting " Turbo-generator Set FRAME FOUNDATION remodeling method, the spring foundation consisted of spring vibration isolation system and new platen can solve the problem that crew base data new, old differs greatly.Making full use of former Turbo-generator Set FRAME FOUNDATION column, structure bears dead load and force path is simple and direct, the most clear.Simultaneously, it is only necessary to remove former operating layer platform, construction investment can be greatly saved, reduce construction work amount, reduction of erection time, and reduce difficulty of construction, to overcome the deficiencies in the prior art.
nullThe technical scheme is that one " few dismounting " Turbo-generator Set FRAME FOUNDATION remodeling method，When Turbo-generator Set needs to change，New Turbo-generator Set is fixed on the new armored concrete platen by its load and installation requirement making，Retain the column of former Turbo-generator Set FRAME FOUNDATION，Operated layer platform removal，Then on the column capital of former FRAME FOUNDATION, arrange spring vibration isolation system，New armored concrete platen overlays on spring vibration isolation system，The vibration new Turbo-generator Set transmitted by new armored concrete platen by spring vibration isolation system is cut off，The dynamic load making new armored concrete platen and new Turbo-generator Set is delivered on the upright of frame of former Turbo-generator Set with dead load form，Make the intensity of former FRAME FOUNDATION remainder、Rigidity and dynamic trait disclosure satisfy that the service requirement of new Turbo-generator Set.
Described spring vibration isolation system ensures to open in Turbo-generator Set, stop during, make quickly to settle out in the dynamic new Turbo-generator Set disturbing under power effect and new armored concrete platen, the displacement of the lines preventing new Turbo-generator Set and new armored concrete platen is excessive, it is to avoid new Turbo-generator Set is resonated by generation during whole system natural frequency in running.
Described spring vibration isolation system includes spring damping vibration isolator and spring vibration-isolator, arranges at least 1 spring damping vibration isolator and at least 2 spring vibration-isolator on each column capital of FRAME FOUNDATION.
When the column capital size of former FRAME FOUNDATION arranges spring vibration isolation system not, first knock out the concrete of column capital, then press spring vibration isolation system at column capital and arrange that the dimensional requirement of platform increases the bracket being connected with capital.This kind of mode can allow bracket and column integrated connection have enough intensity.
Described bracket uses reinforced concrete structure.
The invention has the beneficial effects as follows: the present invention is when changing Turbo-generator Set, it is not necessary to all remove former basis, it is only necessary to removing former basis operating layer platform, compared with prior art, present configuration bears dead load and force path is simple and direct, the most clear.Have and can be greatly saved construction investment, reduce construction work amount, reduction of erection time, and reduce the advantages such as difficulty of construction.It is little that the present invention only removes former basis operating layer platform engineering amount in work progress, and newly-increased platen quantities is little, produces less building waste, and newly-increased building materials consume less, affects less on neighbouring device and pipeline, meets safety, civilization, green construction requirement；Turbo-generator Set is the core component in thermal power plant, and the transformation duration significantly shortens, and puts into operation in time and powers to society or makes place enterprise of power plant for self-supply resume production as early as possible.Utilize the present invention can obtain preferable economic benefit, social benefit and environmental benefit.The invention is particularly suited to change Turbo-generator Set in the space that crane sling height is limited.
Accompanying drawing explanation
Fig. 1 is the floor map of the present invention；
Fig. 2 is the profilograph of Fig. 1；
Fig. 3 is the drawing in side sectional elevation of Fig. 1.
Detailed description of the invention
Further instruction embodiments of the invention below in conjunction with the accompanying drawings: when thermal power plant Turbo-generator Set changed by needs, first operate layer platform removal by former steam turbine-generatot set foundation, retain former basic framework column 1, secondly on former basic framework column 1 capital, polylith is fixed for installing the steel plate of spring vibration-isolator, then the spring vibration isolation system being made up of spring vibration-isolator 4 and spring damping vibration isolator 5 is installed on the steel plate of column 1 end face, the last new armored concrete platen 3 designing and producing satisfied new Turbo-generator Set load and installation requirement in spring vibration isolation system.
Spring vibration isolation system in the present invention includes that spring vibration-isolator 4 and spring deaden Buddhist nun and shake device 5, every root post 1 capital of FRAME FOUNDATION being arranged, at least 2 group spring vibration-isolator 4 and at least 1 group spring damping vibration isolators 5 combine on request, this kind of structure can be while ensureing effectiveness in vibration suppression, it is possible to takes into account cost of manufacture.
The vibration that new Turbo-generator Set is transmitted by new armored concrete platen 3 can be cut off by the spring vibration isolation system in the present invention, the dynamic load making new armored concrete platen 3 and new Turbo-generator Set is evenly transferred on the former upright of frame of former Turbo-generator Set with dead load form, makes intensity, rigidity and the dynamic trait of former FRAME FOUNDATION remainder disclosure satisfy that the service requirement of new Turbo-generator Set.And can ensure that Turbo-generator Set is during opening, stopping, make quickly to settle out in the dynamic new Turbo-generator Set disturbing under power effect and new armored concrete platen 3, the displacement of the lines preventing new Turbo-generator Set and new armored concrete platen 3 is excessive, it is to avoid Turbo-generator Set is resonated by generation during whole system natural frequency in running.
When the column 1 capital size of former FRAME FOUNDATION arranges spring vibration isolation system not, then need to increase bracket 2, specific practice is: first knock out the concrete of column 1 capital, then press spring vibration isolation system at column 1 capital and arrange that the dimensional requirement of platform increases the bracket 2 being connected with capital, wherein bracket 2 uses armored concrete to make, and ensures and former column integrated connection.
Above content is to combine concrete preferred implementation further description made for the present invention, it is impossible to assert the present invention be embodied as be confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, it is also possible to make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (5)
- null1. one kind " few dismounting " Turbo-generator Set FRAME FOUNDATION remodeling method，It is characterized in that: when Turbo-generator Set needs to change，New Turbo-generator Set is fixed on the new armored concrete platen by its load and installation requirement making，Retain the column of former Turbo-generator Set FRAME FOUNDATION，Operated layer platform removal，Then on the column capital of former FRAME FOUNDATION, arrange spring vibration isolation system，New armored concrete platen overlays on spring vibration isolation system，The vibration new Turbo-generator Set transmitted by new armored concrete platen by spring vibration isolation system is cut off，The dynamic load making new armored concrete platen and new Turbo-generator Set is delivered on the FRAME FOUNDATION column of former Turbo-generator Set with dead load form，Make the intensity of former FRAME FOUNDATION remainder、Rigidity and dynamic trait disclosure satisfy that the service requirement of new Turbo-generator Set.
- Remodeling method the most according to claim 1, it is characterized in that: described spring vibration isolation system ensures that Turbo-generator Set is during opening, stopping, make quickly to settle out in the dynamic new Turbo-generator Set disturbing under power effect and new armored concrete platen, the displacement of the lines preventing new Turbo-generator Set and new armored concrete platen is excessive, it is to avoid new Turbo-generator Set is resonated by generation during whole system natural frequency in running.
- Remodeling method the most according to claim 1, it is characterized in that: described spring vibration isolation system includes spring damping vibration isolator and spring vibration-isolator, every root post capital of FRAME FOUNDATION is arranged at least 1 spring damping vibration isolator and at least 2 spring vibration-isolator.
- Remodeling method the most according to claim 1, it is characterized in that: when the column capital size of former FRAME FOUNDATION arranges spring vibration isolation system not, first knock out the concrete of column capital, then press spring vibration isolation system at column capital and arrange that the dimensional requirement of platform increases the bracket being connected with capital.
- Remodeling method the most according to claim 4, it is characterised in that: described bracket uses reinforced concrete structure, and ensures and former column integrated connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610273032.8A CN105908774B (en) | 2016-04-28 | 2016-04-28 | A kind of " few to remove " Turbo-generator Set FRAME FOUNDATION remodeling method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610273032.8A CN105908774B (en) | 2016-04-28 | 2016-04-28 | A kind of " few to remove " Turbo-generator Set FRAME FOUNDATION remodeling method |
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| CN105908774A true CN105908774A (en) | 2016-08-31 |
| CN105908774B CN105908774B (en) | 2018-03-06 |
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| CN201610273032.8A Active CN105908774B (en) | 2016-04-28 | 2016-04-28 | A kind of " few to remove " Turbo-generator Set FRAME FOUNDATION remodeling method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112502185A (en) * | 2020-12-10 | 2021-03-16 | 中冶京诚工程技术有限公司 | Vibration reduction and isolation structure of frame type power foundation |
Citations (4)
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| JPH0827813A (en) * | 1994-07-13 | 1996-01-30 | Mitsubishi Heavy Ind Ltd | Installation foundation holder for machine of every kind |
| KR100637582B1 (en) * | 2006-03-23 | 2006-10-24 | 벽산엔지니어링주식회사 | Base reinforcing structure for a plant machine |
| CN201794333U (en) * | 2010-09-21 | 2011-04-13 | 中国电力工程顾问集团华东电力设计院 | Power plant main power house structure arranging system and power plant main power house |
| CN202131606U (en) * | 2011-06-27 | 2012-02-01 | 中广核工程有限公司 | Foundation of half-speed turbo generator set in nuclear power station |
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2016
- 2016-04-28 CN CN201610273032.8A patent/CN105908774B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0827813A (en) * | 1994-07-13 | 1996-01-30 | Mitsubishi Heavy Ind Ltd | Installation foundation holder for machine of every kind |
| KR100637582B1 (en) * | 2006-03-23 | 2006-10-24 | 벽산엔지니어링주식회사 | Base reinforcing structure for a plant machine |
| CN201794333U (en) * | 2010-09-21 | 2011-04-13 | 中国电力工程顾问集团华东电力设计院 | Power plant main power house structure arranging system and power plant main power house |
| CN202131606U (en) * | 2011-06-27 | 2012-02-01 | 中广核工程有限公司 | Foundation of half-speed turbo generator set in nuclear power station |
Non-Patent Citations (2)
| Title |
|---|
| 巩天真等: "电厂构架式动力基础的隔振研究", 《电力建设》 * |
| 江眺等: "大型汽轮发电机组基础动力特性灵敏度分析", 《江南大学学报（自然科学版）》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112502185A (en) * | 2020-12-10 | 2021-03-16 | 中冶京诚工程技术有限公司 | Vibration reduction and isolation structure of frame type power foundation |
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| CN105908774B (en) | 2018-03-06 |
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Inventor after: Xiong Chengwei Inventor after: Zhang Yibin Inventor after: Li Bo Inventor after: Ran Xingyu Inventor after: Wang Junhu Inventor after: Yang Li Inventor after: Zhang Bin Inventor after: Xie Shenggang Inventor after: Liu Jun Inventor after: Yang Yang Inventor after: Huang Jianjun Inventor after: Gao Yuan Inventor after: Wang Wei Inventor before: Xiong Chengwei Inventor before: Ran Xingyu Inventor before: Wang Junhu Inventor before: Xie Shenggang Inventor before: Zhang Bin Inventor before: Liu Jun Inventor before: Yang Yang Inventor before: Huang Jianjun Inventor before: Gao Yuan Inventor before: Wang Jia Inventor before: Li Bo |
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Address after: Building A6, Defu center, No. 357, qianlingshan Road, high tech Zone, Guiyang City, Guizhou Province 550002 Patentee after: POWERCHINA GUIZHOU ELECTRIC POWER DESIGN & RESEARCH INSTITUTE Co.,Ltd. Address before: 550002 No. 133, Zunyi Road, Nanming District, Guizhou, Guiyang Patentee before: GUIZHOU ELECTRIC POWER DESIGN INSTITUTE |