CN1162671A - Small size rope drawing floating hydraulic power station - Google Patents

Small size rope drawing floating hydraulic power station Download PDF

Info

Publication number
CN1162671A
CN1162671A CN97101265A CN97101265A CN1162671A CN 1162671 A CN1162671 A CN 1162671A CN 97101265 A CN97101265 A CN 97101265A CN 97101265 A CN97101265 A CN 97101265A CN 1162671 A CN1162671 A CN 1162671A
Authority
CN
China
Prior art keywords
buoyancy tank
small size
traction
sluice
hydraulic power
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN97101265A
Other languages
Chinese (zh)
Inventor
生三胜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN97101265A priority Critical patent/CN1162671A/en
Publication of CN1162671A publication Critical patent/CN1162671A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Abstract

A float-type hydroelectric power station is composed of dam, water gate, float box, through-flow turbine set and fixing cables, and features that its float-type building is arranged to be closed to the central flow line of river by means of cables and the excess water and silt are automatically drained from the bottom of water gate. Its advantages include saving investment by 20-35%, shortening construction period by 2-4 times, reducing auxiliaries by 80%, and adapting low water head.

Description

Small size rope drawing floating hydraulic power station
The invention belongs to small size rope drawing floating hydraulic power station.
Hydroelectric generation is as a kind of inexhaustible, reusable edible, and the power conversion form of environmentally safe is subject to people's attention day by day.Especially abundant to waterpower resourses, be in remote districts beyond the national grid and rural area backward in economy again, the development miniature hydro-power generation is to change the particularly urgent task that regional economy falls behind situation.
For these years, small-sized low water head, big flow water-power plant mainly adopt the fixedly layout of factory building of dam-type, and its typical distribution form is the river channel water-power plant.It mainly is made up of barrage dykes and dams, sluice gate or drain cavern etc., diversion water delivery building, reinforced concrete factory plant, axial-flow type or tubular-turbine generator group and electric fixtures.Advantages such as it has long service life, and the current comprehensive utilization is effective.But also having significantly deficiency, mainly is that investment cost is bigger, and especially civilwork engineering quantity and investment are bigger; Long construction period; Complex structure; Ancillary service is many and operational and administrative expenses is high.
In order to reduce investment outlay significantly, accelerate the construction speed of small-sized low water head dam type hydroelectric station, the invention provides a kind of small size rope drawing floating hydraulic power station.It mainly by the barrage dykes and dams, block sluice, buoyancy tank, drag cable and flow diameter are big, flow velocity is low scaled bulb tubular hydraulic generator group etc. and form.Compare it with the dam-type of ad eundem power and head and power station in river channel and have following advantage and characteristics:
The one, gross investment can be saved about 20%～35%.Wherein construction investment can be saved about 50%, and dynamo-electric investment can be saved about 15%.
The 2nd, water conservancy project layout and simple in structure, dam height of dam degree is low, span is little, and ancillary service is few.The dam type hydroelectric station factory building generally is arranged in center, river course streamline one side, and the dam of crossing over the river course overall width need be built in the close bank that has.Consider silt alluvial and flood discharge control, its height of dam degree is higher, and general maximum height is about 3～5 times of nominal productive head.The present invention adopts the floating type factory building of light metal structure, and is arranged near the streamline of center, river course, substitutes the barrage dykes and dams to block sluice, blocks the link height of dykes and dams of sluice both sides and generally has only about 2 times of nominal productive head.Therefore, dam height of dam degree is low, and span is short, can save a large amount of earth and rock works amounts and raw materials consumption; When the present invention raises at the wet season upper pond level, drive by buoyancy tank and to block sluice and unit upwards promotes, from blocking sluice bottom the release unnecessary water yield and silt, sluice gate is not set specially automatically, do not have diversion channel yet, towards hydraulic architectures such as silts, civil engineering and submerge loss are also less; The scaled bulb tubular hydraulic generator group is installed in the metal thin-wall tubular runner, Service gate, Emergency Gate and tail water lock etc. are not set, when needs are shut down or overhaul, only whole runner is pulled out the water surface together with the hydraulic generator unit and to factory building, get final product.Simultaneously, because rated head remains unchanged, can adopt and decide oar and fixed guide vane formula structure.Therefore can save about about 80% rise and close machinery and ancillary service.The minimizing of ancillary service helps saving the workload and the expense of operation and management.
The 3rd, floating type factory building of the present invention is built on the above buoyancy tank of the water surface, and all adopts light metal arched girder and the good thin board type ceiling of light transmission.Therefore, daylighting in the factory building, ventilation condition are good, and working environment has basic improvement.Overcome especially power station in river channel, dam-type power station, factory building is built under water, and bears very big water pressure, the structural strength height, high material consumption also will be installed multiple machinery and equipment simultaneously and be solved deficiencies such as ventilation in the factory building, daylighting, internal transportation, pump drainage ponding.
The 4th, 70% electromechanics and metal construction can realize batch production production in the gross investment; help the seriation and the standardization of product; help guaranteeing product quality; change the deficiency of many kind buyings, the installation of multinomial order, multi-layer management in the present construction of hydropower stations, make small-sized low head hydropower station construction realize scale, grouping management and exploitation.
The 5th, the civil works investment is little, and it is single to construct, and 70% electromechanics and metal construction are only carried out the assembling of on-the-spot finished product and semiproduct in the gross investment, and therefore, construction period can shorten 2～4 times.Scale and modernization construction be can realize simultaneously, labor service and operating expenses further reduced.
The 6th, rope drawing floating formula mill construction can be resisted the direct destruction of natural calamities such as earthquake naturally; The bottom, river course communicates and does not destroy original river ecological balance and peripheral natural environment; Dam height of dam degree is low, span is little, it is little to bear pressure, and is therefore low to the landform and the geological conditions requirement of Jian Ba address, can save partial design, exploration expenditure; And might select to build a station from the nearer section of load center, save part electricity power engineering expense.
The present invention does not have regulated flow formula power station for low water head, and the separate unit design power generally is no more than 600KW, and dam height of dam degree generally is no more than 10m.Especially the river abundant for rainfall, that the mean annual runoff amount is bigger, the span of barrage dykes and dams will be further shortened in the increase of installed capacity, reduce the investment of civil works.On the slow river of gradient, can adopt many steps layout, many power station networkings and can improve the comprehensive utilization ratio of current to greatest extent with the large medium-size station cooperation of regulating for many years.
Fig. 1, small size rope drawing floating hydraulic power station overall layout chart
Fig. 2, the sectional side view of main body layout and structure
The present invention is achieved in that at barrage dykes and dams 1 and blocks under sluice 2 effects, The barrage retaining is realized in the power station. When upper pond level reaches the design water storage level, current The mouth of a river 9 enters scaled bulb tubular hydraulic generator 4 rapidly under head pressure, will Water can change rotating mechanical energy into, and then changes electric energy into. Electric energy is by hollow perpendicular Deliver among the user after the transformer station 5 that lead-out wires in the well 14 are delivered to the bank boosts and go.
Be described in detail below in conjunction with accompanying drawing:
Small size rope drawing floating hydraulic power station mainly by barrage dykes and dams 1, blocks Sluice 2, buoyancy tank 3, the compositions such as tubular-turbine generator group 4 and hauling rope.
Barrage dykes and dams 1 are across the river width beyond the unit, and maximum height generally is In the both sides of power station factory building 6, its value generally is no more than 2 times of design head. In the both sides of power station factory building or side dykes and dams domatic carry out hardening of cement and process, Can form Overflow Section 7, satisfy the requirement of the super flood discharge in design section, power station.
Block sluice 2 and be erected on the sluice foundation 8 that links with barrage dykes and dams 1, and and lock Base 8 is realized side direction and bottom surface sealing. Block sluice 2 upper foreparts and buoyancy tank rear portion, the left and right sides Link, lower anteriomedial gate slot exports 10 slip phases with straight-tapered tail water anemostat Connection. Its structure mainly is made up of horizontal girder, vertical girder and bracing. Block water The panel of lock 2 is divided into left, center, right three parts, about be fixed panel, middle two The root vertical beam doubles as gate slot half way lift lock leaf and the draft tube outlet 10 of packing into simultaneously Flange. Block sluice 2 by metal truss 11 and buoyancy tank 3 and metal tub runner 12 are unified into an integral body, and rely on tractive force to come the whole gate of balance to bear Water pressure. When upland water more, when water level raises, according to " when the river rises the boat goes up " Principle is driven whole factory building and blocked upwards lifting of sluice 2 by buoyancy tank 3, and is unnecessary next Water reaches the silt that is carried by the upstream will be from the automatic bleed downstream in the bottom of blocking sluice 2. The design maximum bleeder quantity is generally about 3 times of specified generating flow.
Buoyancy tank 3 is the hermetically sealed metal structure of rectangle. Every unit by about two It is the hydraulic generator unit with buoyancy, the centre of two buoyancy tanks are provided for buoyancy tank arranged side by side The traction passage. The width of buoyancy tank 3 and Length Ratio generally about 1: 8, Its height is about 2m. Be provided with the hauling rope jockey in the front portion of buoyancy tank 3, Have at an upper portion thereof factory building 6, pass through rail brackets 13 and runner in its underpart 12 link, its rear portion with block sluice 2 and link. The bed rearrangement power station is with buoyancy tank 3 The centre of buoyancy is that the centre of moment carries out the equalising torque design, and the mode of its equalising torque is with the centre of buoyancy Be horizontal basal plane, by height distance and the traction of the dried up flat basal plane of design towing point The traction elevation angle a of rope and horizontal basal plane reaches the balance of moment.
The present invention adopts the bulb through-flow type hydro-turbo generating that flow diameter is big, flow velocity is low Unit 4, and rely on the fixed guide vane at rear portion and anterior three to be mutually 120 ° Support be fixed in the short and straight metal tub runner 12. Upper forepart wherein A bearing support is that hermetically sealed hollow shaft 14 is furnished with generator lead-out wire and profit Lubrication duct etc. When the normal power generation position, hollow shaft 14 is always by lamp Stretch out more than the water surface in the foam. Water inlet 9 front portions at runner are provided with antifouling grid 15. On the cylindrical wall of the front and rear of runner, a towing point is set respectively, When needs emergency shutdown and maintenance, can be by hoist engine 16 along being arranged on towing point The rail brackets 13 of both sides is with whole runner 12 and 4 tractions of hydraulic generator unit Go out the water surface to factory building 6. Because the rated head excursion is very little, it is fixed to adopt Oar and fixed guide vane structure.
Hauling rope is mainly by main hauling rope 17, secondary hauling rope 18, balance traction Rope 19 and traction stake 20 compositions such as grade. When the installation number of units is more usually, in being in Two buoyancy tanks of heart position rely on balance traction rope and main hauling rope fixed connection, to Both sides successively with the connection of sliding of buoyancy tank and main hauling rope. Be arranged in outermost Two common tightness regulating wheels 21 with being arranged on the outermost buoyancy tank of balance traction rope Link. Main hauling rope 17 and secondary hauling rope 18 fixedly link with traction stake 20. Common main hauling rope 17 and traction are the traction lateral angle θ that consists of between central axis Be about 60 °, elevation angle a is generally about 10 ° in traction.
Block sluice basis 8 owing to only bear very little pressure and thrust, therefore, can reduce length and weight, can adopt the land integral cast, the mode of floating and sinking or aerial lifting of implementing is then constructed.
Upper surface at buoyancy tank 3 has factory building 6, and factory building serves as that main the support built light metal arch formula beam with rail brackets 13, and adopts good engineering plastics of light sheet material or light transmission etc. to hide.Power transformation station 5 is arranged near the barrage dykes and dams 1 on the bank.Because distance is far away, the generator lead-out wire is longer, and operational contact is inconvenience comparatively.
Metal construction of the present invention part is many, and major part works under water, must take the preservative treatment measure.Simultaneously, towed layout makes main components be in the tensile stress state, the overall structure good stability, and partial component can be cylinder iron, light aluminum alloy and macromolecule engineering plastics substitute.
Embodiment: a total installation of generating capacity is the small size rope drawing floating hydraulic power station of 2500KW, equips 10 desk lamps bubble tubular-turbine generator group, and the principal character parameter of its separate unit unit is as follows:
Rated power 250KW
Rated head 4.0m
Metered flow 9.3m 3/ s
Runner nominal diameter D 11.50m
Water wheels type through-flow is decided oar, bulb flume, fixed guide vane
Runner total length 7.0D 1
Water inlet diameter 1.75D 1
Delivery port diameter 1.60D 1
Unit spacing 4.5D 1
Buoyancy tank size (length * wide * height) 12m * 1.5m * 2.0m
2 buoyancy tanks add up to provides greatest limit buoyancy 69000kg
The about 55000kg of gross weight floats
The heavily about 24000kg of hydraulic generator unit wherein
The about 60m of factory building usable floor area 2
Block sluice height 7.5m, wide 6.0m
About 6.5m～the 7.0m of barrage dykes and dams maximum height
Drag cable adopts galvanized steel wire rope, the normal about 470KN of vertical distraction power, about 60 ° of traction lateral angle θ, about 10 ° of traction elevation angle a.
50 years service lives.

Claims (6)

1, small size rope drawing floating hydraulic power station mainly by the barrage dykes and dams, block sluice, buoyancy tank, scaled bulb tubular hydraulic generator group and drag cable etc. and form.The full-floating type factory building that it is characterized in that being based upon on the buoyancy tank is arranged near the streamline of center, river course, the front portion and the drag cable of buoyancy tank link, the bottom of buoyancy tank and the scaled bulb tubular hydraulic generator set associative that is fixed in the metal tub runner, the rear portion of buoyancy tank with block sluice and link.Block sluice becomes the barrage retaining with barrage dykes and dams mutual group hydraulic structure.
2,, it is characterized in that providing the gravity of buoyant equilibrium whole factory building by buoyancy tank as right 1 described small size rope drawing floating hydraulic power station; Provide tractive force balance to block the water pressure that sluice and factory building bear by drag cable.
3, as right 1,2 described small size rope drawing floating hydraulic power stations, it is characterized in that with the buoyancy tank centre of buoyancy be the balanced design that the centre of moment carries out various moments, its method is to realize from the distance up and down of the horizontal basal plane in centre of buoyancy and the traction elevation angle a of the horizontal basal plane formation of drag cable and centre of buoyancy by changing towing point.
4,, it is characterized in that hydraulic generator unit and runner can be at hoist engine tractive force effect lower edge rail brackets from emerging to factory building when needs are shut down or overhaul under water as right 1,2,3 described small size rope drawing floating hydraulic power stations.
5, as right 1,2,3,4 described small size rope drawing floating hydraulic power stations, it is characterized in that when the more water level of upland water rises, driven whole factory building and blocked upwards lifting of sluice by buoyancy tank, the unnecessary water yield reaches the silt that is carried by upland water will be from blocking sluice bottom bleed downstream automatically.
6, as right 1,2,3,4,5 described small size rope drawing floating hydraulic power stations, it is characterized in that drag cable generally by main drag cable, secondary drag cable, balance traction rope and traction stake are formed.Traction lateral angle θ is generally about 60 °, and the traction stake is arranged on the riverbank, both sides, upstream, on one side the major-minor drag cable is fixed in the traction stake, another side links by balance traction rope and buoyancy tank.
CN97101265A 1997-03-11 1997-03-11 Small size rope drawing floating hydraulic power station Pending CN1162671A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN97101265A CN1162671A (en) 1997-03-11 1997-03-11 Small size rope drawing floating hydraulic power station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN97101265A CN1162671A (en) 1997-03-11 1997-03-11 Small size rope drawing floating hydraulic power station

Publications (1)

Publication Number Publication Date
CN1162671A true CN1162671A (en) 1997-10-22

Family

ID=5165621

Family Applications (1)

Application Number Title Priority Date Filing Date
CN97101265A Pending CN1162671A (en) 1997-03-11 1997-03-11 Small size rope drawing floating hydraulic power station

Country Status (1)

Country Link
CN (1) CN1162671A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104332203A (en) * 2014-10-28 2015-02-04 中国核动力研究设计院 Traction mechanism suitable for hull type floating nuclear power station
CN104452695A (en) * 2014-10-15 2015-03-25 解增友 Downstream ultra-low head tubular turbine power station

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104452695A (en) * 2014-10-15 2015-03-25 解增友 Downstream ultra-low head tubular turbine power station
CN104332203A (en) * 2014-10-28 2015-02-04 中国核动力研究设计院 Traction mechanism suitable for hull type floating nuclear power station

Similar Documents

Publication Publication Date Title
CN108506167B (en) Efficient ocean wave, tide, ocean current, wind, light power generation, ocean farm and purification platform
US7503744B1 (en) Undershot impulse jet driven waterwheel having an automatically adjustable radial gate for optimal hydroelectric power generation and water level control
US20080191486A1 (en) Power Generator and Power Generation Method
US20090175723A1 (en) Undershot impulse jet driven water turbine having an improved vane configuration and radial gate for optimal hydroelectric power generation and water level control
CN105253262A (en) Ocean vertical axis combined supported-type power generation platform
CN101046188A (en) Tidal power generator
CN111852729B (en) Floating river power generation method
CN1730934A (en) Vane speed regulator for electricity generation by wind power and ocean current
CN106523250A (en) Water-floating type hydroelectric generator
CN1454290A (en) System for the exploitation of tidal-and river current energy
CN106013013B (en) Tubular power station separate combination type factory building system
KR101232332B1 (en) Variable location type power plant using tidal current
CN211474329U (en) Efficient sea wave, tide, ocean current, wind and light power generation and marine grazing farm and purification platform
CN1162671A (en) Small size rope drawing floating hydraulic power station
CN102304911A (en) Horizontal dam-free running water impacted power station
CN201753660U (en) Floating type water wind-driven power generation ship
CN112195880B (en) Full fishway system applicable to dam-behind type factory building in high and steep narrow terrain and construction method
CN111550360A (en) Buoyancy swinging gravity self-balancing group power generation device
CN111102137A (en) Offshore flexible wind power generation technology
CN217678907U (en) Low-head hydropower station is with hanging large-span dam entirely
CN213684375U (en) Floating river power generation device
CN212202322U (en) Wind-water rotating wheel and ocean energy comprehensive power generation device thereof
CN2591261Y (en) Electric power generator
JP2012145090A (en) Power generation method by artificial water channel type water-wheel generator, power generation method by sea-water tide type water-wheel generator, artificial water channel type water-wheel generator, sea-water tide type water-wheel generator, artificial water channel for undershot water-wheel generator, and artificial water channel type irrigation water-wheel
CN117248504A (en) Full-suspension large-span dam for low-head hydropower station and application

Legal Events

Date Code Title Description
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C06 Publication
PB01 Publication
C01 Deemed withdrawal of patent application (patent law 1993)
WD01 Invention patent application deemed withdrawn after publication