CN104578671A - Flow-induced vibration power generation device based on deformable support - Google Patents
Flow-induced vibration power generation device based on deformable support Download PDFInfo
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- CN104578671A CN104578671A CN201410830582.6A CN201410830582A CN104578671A CN 104578671 A CN104578671 A CN 104578671A CN 201410830582 A CN201410830582 A CN 201410830582A CN 104578671 A CN104578671 A CN 104578671A
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Abstract
The invention discloses a flow-induced vibration power generation device based on a deformable support. The device comprises a cylinder and a generator system, wherein an upper platform and a lower platform which are mutually connected through elastic connecting plates are arranged below the cylinder, the elastic connecting plates are correspondingly and fixedly connected onto two sides of the upper platform and the lower platform through staggered bolts, a support pile penetrating through a seabed is fixedly connected with the lower platform, the generator system comprises a permanent-magnet linear generator and a linear magnetic rod inserted in a coil of the permanent-magnet linear generator, and the linear magnetic rod and the permanent-magnet linear generator are connected with side surfaces of the upper platform and the lower platform respectively through connecting rods. The device has the advantages that the device is simple in structure, high in reliability, free of sliding/rotating nodes, low in cost, high in efficiency, long in service life and the like, and the economy and the engineering applicability of the flow-induced vibration power generation device are enhanced.
Description
Technical field
The present invention relates to generation of electricity by new energy equipment and field of fluid mechanics, in particular, relate to a kind of Flow vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT) based on deformability bearing.
Background technology
Now along with global economy is fast-developing, fossil fuel resources is day by day exhausted, and its environmental pollution caused is on the rise, and the development and utilization of clean reproducible energy is become to the strategic selection of every country in the world today.In numerous clean energy resourcies, energy by ocean current, because of advantages such as it are in large scale, flowing is stable, widely distributed, utilizes the attention being more and more subject to scientific circles and engineering circles to its Efficient Development.According to statistics, the whole world can utilize energy by ocean current up to 5,000,000 megawatts.The energy by ocean current of China is also very abundant, and offshore is dispersed with the ocean currents such as kuroshio, Huanghai Warm Current, China Coast stream.Wherein, only the theoretical power (horse-power) of China Coast stream is just 140,000 megawatts, is equivalent to the installed capacity of 70 pipe of reinforced concrete at Three Gorges Power Stations.Traditional energy by ocean current utilizes the requirement of device to flow velocity higher, and the initial velocity as turbine is 2.5 ~ 3.6m/s, underwater windmill be 2.0m/s.But worldwide, the current speed more than 90%, lower than 1.5m/s, this strongly limits the applicable marine site scope that above traditional energy by ocean current utilizes device.Therefore, develop low flow velocity energy by ocean current efficient utilization device and become major issue urgently to be resolved hurrily.
In this respect, the cylinder Flow vibration that the Bernitsas professor of Univ Michigan-Ann Arbor USA and research team thereof utilize current to excite through cylinder (group), a kind of efficient utilization device of low flow velocity energy by ocean current is developed in 2008---VIVACE (Vortex Induced VibrationAquatic Clean Energy), remarkable in economical benefits, development potentiality is huge.From fluid structurecoupling knowledge, when current are in time having structure (as the cylinder) of precipitous trailing edge, whirlpool alternately can be there is in the back of the body stream side of structure and generate and bleed off.Be associated with it, cylinder can be subject to crossing current to (perpendicular to carrying out flow path direction) periodically fluid force effect.This periodic fluid force will excite the vibration of cylinder, and the vibration of cylinder change cylinder conversely rush down whirlpool pattern.Coupled problem between this fluid and works is called as vortex-induced vibration.In addition, for tandem cylinder (two or more), if cylinder spacing is suitable, downstream cylinder will be in the wake flow of upstream cylinder.From whirlpool constantly " shock " downstream cylinder that upstream cylinder comes off, and there is very complicated interaction with the whirlpool that downstream cylinder comes off, cause downstream cylinder to occur than vortex-induced vibration vibration by a larger margin, be called wake galloping.VIVACE energy by ocean current utilizes device to be exactly catch energy by ocean current by the vortex-induced vibration of cylinder and wake galloping (being referred to as Flow vibration), and by devices such as chain, connecting rod and generators, cylinder vibration mechanical energy is converted to electric energy, is transported on the bank.VIVACE energy by ocean current utilizes the feature of device to be: 1) initial velocity is low, can start under the flow velocity being greater than 0.25m/s; 2) energy density is high, and floor space is little, flexible arrangement; 3) good concealment, is in completely under water, does not affect navigation, do not destroy coastline resource; 4) friendly to marine organisms.In addition, VIVACE energy by ocean current utilizes device also can be applied in inland river hydroelectric field.But VIVACE energy by ocean current utilizes the shortcoming of device also very outstanding.1) mechanical transmission component is too many, because marine organisms remains are attached on mechanical transmission component, causes the frictional resistance of drive disk assembly to increase, reduces the energy conversion factor that VIVACE energy by ocean current utilizes device; 2) anticorrosion difficulty is comparatively large under water, owing to adopting machine driving, slide/is rotationally connected node, simple corrosion-inhibiting coating cannot be adopted to protect at parts; 3) extra supporting construction, VIVACE energy by ocean current utilizes in apparatus module needs extra two columns to carry out supported and suspended cylinder thereon, therefore cost is higher, and column has obstruction impact to ocean current, reduces the energy conversion factor that VIVACE energy by ocean current utilizes device.These drawbacks limit VIVACE energy by ocean current utilizes economy and the practicality of device.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, a kind of Flow vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT) based on deformability bearing is proposed, this device has that structure is simple, reliability is strong, without sliding/rotate node, low cost, high-effect, long-life feature, enhance economy and the engineering adaptability of Flow vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT).
The object of the invention is to be achieved through the following technical solutions:
A kind of Flow vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT) based on deformability bearing, comprise cylinder and generator system, the below of described cylinder is provided with the interconnective upper mounting plate of elastic connection plate and lower platform, described elastic connection plate is fixed in the both sides of upper mounting plate and lower platform accordingly by the bolt of interlaced arrangement, described lower platform is connected with the supporting pile of injection sea bed, described generator system comprises permanent magnet linear generator and inserts the straight line bar magnet of permanent magnet linear generator coil inside, described straight line bar magnet is connected with the side of lower platform with upper mounting plate by connecting rod respectively with permanent magnet linear generator.
Described elastic connection plate is also provided with through hole.
Described elastic connection plate is made up of steel plate.
Described cylinder is the cylinder that inner hollow is airtight.
Described cylinder lower end and upper mounting plate adopt build-in mode to be connected.
Described whole apparatus surface is all coated with anticorrosive coat.
Compared with prior art, the beneficial effect that technical scheme of the present invention is brought is:
1. not sliding in this device/rotation node, there is not the energy loss because frictional force causes, therefore the energy conversion factor of device is higher.
2. this apparatus structure is simple, does not have complicated connected node and drive disk assembly, dependable performance, manufactures and easy construction, good economy performance, practical.
3. not sliding in this device/rotate node, therefore in device, all parts can apply simple corrosion-inhibiting coating and carry out preservative treatment.
4. this apparatus structure is simple, and not wearing and tearing between parts, device lifetime determines primarily of elastic connection plate fatigue life, and failure rate is extremely low, and bulk life time is far above conventional power generation device.
5. the elastic connection plate in this device is provided with through hole, can reduce the fluid resistance that device is subject to.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is using state structural representation of the present invention.
Fig. 3 is using state structural representation of the present invention.
Fig. 4 is the structural representation that Elastic connecting plate of the present invention is bolted.
Reference numeral: 1-supporting pile 2-lower platform 3-elastic connection plate 4-upper mounting plate 5-cylinder 6-straight line bar magnet 7-permanent magnet linear generator 8-draws the wire 9-connecting rod 10-bolt 11-coil 12-magnetic line of force
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figures 1 to 4: a kind of Flow vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT) based on deformability bearing, comprise cylinder 5 and generator system, described cylinder 5 is the cylinder that inner hollow is airtight, the lower end of cylinder 5 is connected with upper mounting plate 4 build-in, upper mounting plate 4 is interconnected by elastic connection plate 3 and lower platform 2, elastic connection plate 3 is made up of the steel plate with through hole, described elastic connection plate 3 is fixedly connected on the both sides of upper mounting plate 4 and lower platform 2 accordingly by the bolt 10 of interlaced arrangement, make elastic connection plate 3 that S shape Bending Deformation can only occur, form deformable bearing.Described lower platform 2 is connected with supporting pile 1 build-in, and the lower end injection sea bed of supporting pile 1 forms the basis of whole device.Described generator system comprises permanent magnet linear generator 7 and inserts the straight line bar magnet 6 of coil 11 inside, straight line bar magnet 6 is connected by the side of connecting rod 9 with upper mounting plate 4, permanent magnet linear generator 7 is connected by the side of connecting rod 9 with lower platform 2, and whole apparatus surface is also all coated with anticorrosive coat in addition.
Operation principle of the present invention is as follows:
As shown in Figures 2 and 3, adjust the arranged direction of this device, make the plane of elastic connection plate 3 and to carry out flow path direction parallel, under action of ocean current, there is Flow vibration in airtight hollow circuit cylinder 5, and drive upper mounting plate 4 to move together, the horizontal vibration that two panels elastic connection plate 3 same degree bending makes upper mounting plate 4 and airtight hollow circuit cylinder 5 occur perpendicular to elastic connection plate 3 in-plane, the quality of airtight hollow circuit cylinder 5 is less than the quality that it arranges seawater, be subject to buoyancy upwards, ensure that elastic connection plate 3 tension, and there is not lateral deflection destruction, elastic connection plate 3 provides the elastic-restoring force needed for cylinder 5 Flow vibration, relative motion is there is by the affixed straight line bar magnet 6 of connecting rod 9 and permanent magnet linear generator 7 respectively with upper mounting plate 4 and lower platform 2, inductance coil 11 cutting magnetic line 12 of permanent magnet linear generator 7 inside, produce alternating current, and export by drawing wire 8.
For typical ocean current situation (flow velocity 1.5m/s), the specific embodiments of the large-scale power station of rated power 100MW is: airtight hollow circuit cylinder 5 diameter 1.0m, wall thickness 0.01m, post height 20.0m, elastic connection plate 3 height 3.0m, upper mounting plate 4 and lower platform 2 are formed by concreting, and length and width are 2.0m, height 0.4m.The complex energy transformation ratio of device is about 0.22, and the power of single assembly is 7.43kW, annual energy output 58600kWh (the utilized Time Calculation by 90%).Power station by multiple Blast Furnace Top Gas Recovery Turbine Unit (TRT) according to matrix form arrange form, device following current to crossing current to spacing be 6.0m, arrange according to 115 X 115, totally 13225.The rated power in power station is 98.3MW, and annual energy output is 7.8 hundred million kWh, and power station yardstick is 700m X 700m, and floor space is about 0.5 square kilometre.
For typical ocean current situation (flow velocity 1.5m/s), the specific embodiments in the medium-sized power station of rated power 10MW is: airtight hollow circuit cylinder 5 diameter 0.5m, wall thickness 0.005m, post height 10.0m, elastic connection plate 3 height 1.5m, upper mounting plate 4 and lower platform 2 are formed by concreting, and length and width are 1.0m, height 0.2m.The complex energy transformation ratio of device is about 0.22, and the power of single assembly is 1.86kW, annual energy output 14700kWh (the utilized Time Calculation by 90%).Power station by multiple Blast Furnace Top Gas Recovery Turbine Unit (TRT) according to matrix form arrange form, device following current to crossing current to spacing be 3.0m, arrange according to 75 X 75, totally 5625.The rated power in power station is 10.5MW, and annual energy output is 0.83 hundred million kWh, and power station yardstick is 225m X 225m, and floor space is about 0.05 square kilometre.
Claims (6)
1. the Flow vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT) based on deformability bearing, comprise cylinder and generator system, it is characterized in that, the below of described cylinder is provided with the interconnective upper mounting plate of elastic connection plate and lower platform, described elastic connection plate is fixed in the both sides of upper mounting plate and lower platform accordingly by the bolt of interlaced arrangement, described lower platform is connected with the supporting pile of injection sea bed, described generator system comprises permanent magnet linear generator and inserts the straight line bar magnet of permanent magnet linear generator coil inside, described straight line bar magnet is connected with the side of lower platform with upper mounting plate by connecting rod respectively with permanent magnet linear generator.
2. a kind of Flow vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT) based on deformability bearing according to claim 1, is characterized in that, described elastic connection plate is also provided with through hole.
3. a kind of Flow vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT) based on deformability bearing according to claim 1 and 2, it is characterized in that, described elastic connection plate is made up of steel plate.
4. a kind of Flow vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT) based on deformability bearing according to claim 1, it is characterized in that, described cylinder is the cylinder that inner hollow is airtight.
5. a kind of Flow vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT) based on deformability bearing according to claim 1 or 4, is characterized in that, described cylinder lower end and upper mounting plate adopt build-in mode to be connected.
6. a kind of Flow vibration Blast Furnace Top Gas Recovery Turbine Unit (TRT) based on deformability bearing according to claim 1, it is characterized in that, described whole apparatus surface is all coated with anticorrosive coat.
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| CN201410830582.6A CN104578671B (en) | 2014-12-26 | 2014-12-26 | Flow-induced vibration power generation device based on deformable support |
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| CN201410830582.6A CN104578671B (en) | 2014-12-26 | 2014-12-26 | Flow-induced vibration power generation device based on deformable support |
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| CN104578671B CN104578671B (en) | 2017-02-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106870269A (en) * | 2017-03-08 | 2017-06-20 | 河海大学 | A kind of marine tidal-current energy and vortex-induced vibration energy composite generating set |
| CN106887925A (en) * | 2017-03-31 | 2017-06-23 | 天津大学 | A kind of Flow vibration TRT of use active Flow Control |
| CN107631848A (en) * | 2017-09-26 | 2018-01-26 | 上海核工程研究设计院有限公司 | A kind of steam generator heat-transfer pipe line causes vibration testing device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870269A (en) * | 2017-03-08 | 2017-06-20 | 河海大学 | A kind of marine tidal-current energy and vortex-induced vibration energy composite generating set |
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| CN106887925A (en) * | 2017-03-31 | 2017-06-23 | 天津大学 | A kind of Flow vibration TRT of use active Flow Control |
| CN106887925B (en) * | 2017-03-31 | 2023-12-15 | 天津大学 | Flow-induced vibration power generation device adopting active flow control |
| CN107631848A (en) * | 2017-09-26 | 2018-01-26 | 上海核工程研究设计院有限公司 | A kind of steam generator heat-transfer pipe line causes vibration testing device |
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