CN204082417U - A kind of pump turbine unit for micro-head - Google Patents
A kind of pump turbine unit for micro-head Download PDFInfo
- Publication number
- CN204082417U CN204082417U CN201320702547.7U CN201320702547U CN204082417U CN 204082417 U CN204082417 U CN 204082417U CN 201320702547 U CN201320702547 U CN 201320702547U CN 204082417 U CN204082417 U CN 204082417U
- Authority
- CN
- China
- Prior art keywords
- pump turbine
- head
- micro
- pipeline
- generator motor
- 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.)
- Withdrawn - After Issue
Links
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
Landscapes
- Hydraulic Turbines (AREA)
- Control Of Water Turbines (AREA)
Abstract
For a pump turbine unit for micro-head, relate to pump turbine technical field, its structure comprises pipeline, the generator motor that the level that is provided with in pipeline is installed with rotating shaft and pump turbine.The application has water turbine generating and pumping for water pump two kinds of operating modes simultaneously, and same runner meets the needs drawn water with generating electricity; Adopt the wheel hub of spheric and the blade of slender type distorted shape, the minute-pressure type pump turbine runner that the cross section chord length of blade increases gradually from blade root side direction leaf margin side, be applicable to micro-head generating of scope about 0 ~ 2.5m or draw water; By the optimization that runner and pipeline are imported and exported, make the length of pipeline and the diameter ratio scope of runner be 0.6 to 3, can be easily installed on bulkhgead gate or riverbed; The application adopts the structure of integrated form, is convenient to production and processing, is convenient to the assembling of unit; Can utilize the drawing water for micro-head and generate electricity of micro-head hydraulic power potentials and pump energy consumption, and structure is simple, cost is low, without the need to developing Other Engineering simultaneously.
Description
Technical field
The application relates to pump turbine technical field, particularly relates to a kind of pump turbine unit for micro-head.
Background technique
From water ecological environment aspect, city appearance water body, Ecological River, city inland river gush, due to retaining of damming, exploitation or enclose the factors such as flood control water body flow all can be caused poor because of mesh self adaptability connection, River function weakens, likely become " stagnant water " and cause water body self-purification ability to degenerate, environmental deterioration and can not ecological requirements be met.
From clean reproducible energy aspect, micro-head hydraulic power potentials (hydroelectric power) is one of best clean renewable green energy resource of up to the present finding of the mankind, and the energy " the 12 " planning of country is clearly given priority to hydraulic power potentials (water power) exploitation especially.It is generally acknowledged below 2.50m head (hereinafter referred to as micro-head) hydraulic power potentials, because its energy density is lower, single-point generating (installation) scale is less, according to traditional development scheme and power generating equipment, although technology maturation, but the lower Economy of head is poorer, be difficult to bear involve great expense civil engineering, flood the expenses such as reparation and equipment.Therefore, micro-head hydraulic power potentials is in untapped state at present substantially, does not also cause the attention of people.
In addition, from the angle of pumping for water pump, pumping plant is energy consumption equipment, even if the scale that single-point draws water is less, with regard to nationwide, the energy consumption for drawing water also is huge.
Therefore, making full use of micro-head hydraulic power potentials and reducing pump energy consumption is one of people's technical barrier needing solution badly.
In prior art, publication number be the Chinese invention patent application of CN102966563A disclose a kind ofly efficiently to draw water, generate electricity dual-purpose turbine pump, its structure comprises the pump housing, generator and pump shaft, the pump housing comprises water wheels chamber and pump chamber, pump shaft is divided into first paragraph axle and second segment axle, and the upper end of pump shaft connects generator, first paragraph axle is fixed with two impellers in the same way, pump chamber is provided with the first water intake and the first water outlet, second segment axle is fixed with special runner, impeller is contrary with the installation direction of special runner, on the pump housing, corresponding special runner is provided with water guide stand, the pump housing being provided with to supply water flows into the second water intake of pump chamber, the bottom of the pump housing is provided with the second water outlet, when drawing water, river or tide pumping plant irrigation by pumping farmland can be utilized, when slack season, farmland did not need water, generator can be connected again, water is utilized directly to generate electricity by drive electrical generators, although its compact overall structure, easy to operate, reduce current loss, increase head ratio, improve utilization ratio, using scope is wide, but due in above technological scheme, water pump and water turbine are provided separately, cause its complicated integral structure, cost is high, is not suitable for and applies on a large scale.
The runner of the pump turbine of prior art, the blade generally comprising crown, lower ring and be arranged between crown and lower ring, can only be applied in head scope is in the intensive pumped storage power station of the ability of 4 ~ 600m, can not be applied on the pump turbine of the not intensive micro-head of energy, its structure is comparatively complicated, volume greatly and very heavy.
Summary of the invention
The object of the application is avoid deficiency of the prior art and provide one to can be applicable to gate or riverbed, and structure is simple, cost is low, without the need to developing the pump turbine unit for micro-head of other extra engineerings.
The object of the application is achieved through the following technical solutions:
A kind of pump turbine unit for micro-head is provided, comprises pipeline, the generator motor that the level that is provided with in pipeline is installed with rotating shaft and pump turbine,
Generator motor is fixed in pipeline by multiple fixing support arm, the joint being positioned at one of them fixing support arm above generator motor and tube wall offers the cable export for wearing generator motor cable, and cable export connects grid-connected frequency variator and protecting control equipment;
Pump turbine comprises special runner, described special runner comprises the wheel hub of spheric and is arranged at the blade of wheel hub, wheel hub is arranged in rotating shaft, blade is set to the blade of slender type distorted shape and the leaf margin end of blade has the recess of arc, and the cross section chord length of blade increases gradually from blade root side direction leaf margin side;
The ratio range of the length of pipeline and the diameter of special runner is 0.6 to 3;
The waterpower of upstream drives the special runner of pump turbine to rotate to a direction and then drives generator motor generating, and generator motor drives the special runner of described pump turbine to rotate to another direction and then upstream draws water.
Wherein, the water export of pipeline is set to the tapering type water export of flaring.
Wherein, the flow inlet of pipeline and/or water export are provided with the device for cutting off current.
Wherein, the pump turbine unit for micro-head is connected and fixed on bulkhgead gate or riverbed by fixing device.
Wherein, the working head of the special runner of pump turbine is 0 ~ 2.5m.
Wherein, fixing support arm is uniformly distributed setting along the outer circumference of the shell of generator motor.
Wherein, fixing support arm is that equidistant annular spread is arranged along the outer circumference of the shell of generator motor.
Wherein, fixing support arm helically arranges on the outer circumferential face of the shell of generator motor.
Wherein, the ratio range of the length of pipeline and the diameter of special runner is 0.6 to 1.5.
The beneficial effect of the application: the application is mainly installed on bulkhgead gate or riverbed.The application adopts the wheel hub of spheric of special exploitation and the blade of slender type distorted shape and the leaf margin end of blade has the recess of arc, the minute-pressure type pump turbine runner that the cross section chord length of blade increases gradually from blade root side direction leaf margin side, is applicable to micro-head generating of scope about 0 ~ 2.5m or draws water; By the optimization that runner and pipeline are imported and exported, the diameter ratio scope making the length of pipeline and special runner is 0.6 to 3, can be easily installed on bulkhgead gate or riverbed; Generator adopts generator motor, cancel exciter alternator control gear, owing to employing grid-connected frequency variator, generating operation mode can be made simply grid-connected, and generating unit speed is unrestricted in certain speed range, can cancel speed control device, simplify generating auxiliary system, thus make the structure of generator simple, a large amount of civil engineering costs and equipment manufacturing cost can be saved, be convenient to the universal and popularization on market; The application adopts the structure of integrated form, is convenient to production and processing, is convenient to the assembling of unit; And structure is simple, cost is low, without the need to developing Other Engineering.
Accompanying drawing explanation
Utilize accompanying drawing to be described further application, but the embodiment in accompanying drawing does not form any restriction to the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the following drawings.
Fig. 1 is the using state figure that the application is installed on gate.
Fig. 2 is the using state figure that the application is installed on riverbed.
Fig. 3 is the structural representation of special runner.
Include in figure:
1---pipeline;
2---generator motor;
3---pump turbine, 31---blade, 32---wheel hubs;
4---fixing support arm;
5---flange;
6---gate;
7---riverbed.
Embodiment
With the following Examples the application is further described.
A kind of pump turbine unit drawing water for micro-head and generate electricity of the present embodiment, as depicted in figs. 1 and 2, comprises pipeline 1, the generator motor 2 that the level that is provided with in pipeline 1 is installed with rotating shaft and pump turbine 3.The waterpower of upstream drives the special runner of pump turbine 3 to rotate then drive generator motor 2 to a direction and generates electricity, and generator motor 2 drives the special runner of described pump turbine 3 to rotate to another direction and then upstream draws water.Micro-head hydraulic power potentials can be made full use of and reduce pump energy consumption.
Electricity motor 2 is fixed in pipeline 1 by multiple fixing support arm 4, is positioned at the fixing support arm 4 of one of them above generator motor 2 and the joint of pipeline 1 wall and offers cable export for wearing generator motor 2 cable.One of them fixing support arm 4, simultaneously as the export of cable and the fixed guide vane of pump turbine 3, does not therefore need the movable guide vane establishing pump turbine 3.
Cable export connects grid-connected frequency variator and protecting control equipment.Adopt converter technique can reduce energy consumption of drawing water, environmental protection.During generating operation mode, special runner variable speed rotates, and generator motor 2 is transmitted electricity to electrical network by grid-connected frequency conversion equipment; During pumping operation mode, pump turbine 3 utilizes mains supply, is rotated by frequency conversion equipment frequency conversion.
Pump turbine comprises special runner, as shown in Figure 3, special runner comprises the wheel hub 32 of spheric and is arranged at the blade 31 of wheel hub 32, wheel hub 32 is arranged in rotating shaft, blade 31 is set to the blade of slender type distorted shape and the leaf margin end of blade 31 has the recess of arc, and the cross section chord length of blade increases gradually from blade root side direction leaf margin side.The wheel hub 32 of spheric is convenient to install blade 31.The special runner of this kind of structure is a kind of micro-head generating being specifically applied to scope about 0 ~ 2.5m or the runner drawn water.The runner of prior art is all generally the head being only applicable to more than 4m.This pump turbine is installed on gate, can to concrete water body carry out low lift draw water moisturizing, circulate or micro circulation flowing.
The ratio range of the length of pipeline 1 and the diameter of special runner is 0.6 to 3.Particularly, the ratio range of the length of pipeline 1 and the diameter of special runner is 0.6 to 1.5.Structure is little, and ratio is suitable, can directly be installed on gate 6.
Wherein, the water export of pipeline 1 is set to the tapering type water export of flaring.Be conducive to the kinetic energy energy reclaiming special outlet of rotary wheel, improve unit efficiency.
Wherein, the flow inlet of pipeline 1 and/or water export are provided with the device for cutting off current.For conventional low water head tubular-Francis turbine, the device arranged for cutting off current is also that a kind of unit of protecting avoids one of means that flying escapes runs.The application does not need to protect unit to avoid flying ease by this device and runs, and in this application, the effect of this device prevents aqueous reflux.Concrete, the front portion of pipeline 1 or rear portion are provided with the paddle for cutting off current.When the application is installed on gate 6, when being specially bulkhgead gate 6, at bulkhgead gate 6, paddle can be installed, form door in door.
Wherein, pump turbine 3 unit drawing water for micro-head and generate electricity is connected and fixed on bulkhgead gate 6 or riverbed 7 by fixing device.
Wherein, the working head of the special runner of pump turbine 3 is 0 ~ 2.5m.0 ~ 2.5m belongs to micro-head.
Wherein, fixing support arm 4 is uniformly distributed setting along the outer circumference of the shell of generator motor 2.When fixing support arm 4 uses as fixed guide vane, seat ring (overcurrent part) can be made to become to be integrated, before making current enter special runner, form circular rector simultaneously.
Particularly, fixing support arm 4 is that equidistant annular spread is arranged along the outer circumference of the shell of generator motor 2.
More specifically, fixing support arm 4 helically arranges on the outer circumferential face of the shell of generator motor 2.Circular rector is formed before current can be made better to enter special runner.
The movable guide vane of prior art is used for adjust flux, and for cutting off current during compressor emergency shutdown, the application is owing to adopting frequency conversion interconnection technology, and therefore, can not establish movable guide vane, special rotaring wheel structure can be made to simplify, and cost is low, is convenient to manufacture and processing.
The application is mainly installed on bulkhgead gate 6 or riverbed 7, and same special runner meets the needs drawn water with generating electricity; Adopt the wheel hub of spheric of special exploitation and the blade of slender type distorted shape and the leaf margin end of blade 31 has the recess of arc, the minute-pressure type pump turbine runner that the cross section chord length of blade increases gradually from blade root side direction leaf margin side, is applicable to micro-head generating of scope about 0 ~ 2.5m or draws water; By the optimization that special runner and pipeline 1 are imported and exported, the diameter ratio scope making the length of pipeline 1 and special runner is 0.6 to 3, can be easily installed on bulkhgead gate 6 or riverbed 7; Motor adopts generator motor 2, cancel exciter alternator control gear, owing to employing grid-connected frequency variator, generating operation mode can be made simply grid-connected, and generating unit speed is unrestricted in certain speed range, can cancel speed control device, simplify generating auxiliary system, thus make the structure of generator simple, a large amount of civil engineering costs and equipment manufacturing cost can be saved, be convenient to the universal and popularization on market; The application adopts the structure of integrated form, is convenient to production and processing, is convenient to the assembling of unit; And structure is simple, cost is low, without the need to developing Other Engineering.
Finally should be noted that; above embodiment is only in order to illustrate the technological scheme of the application; but not the restriction to the application's protection domain; although done to explain to the application with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to the technological scheme of the application or equivalent replacement, and not depart from essence and the scope of technical scheme.
Claims (9)
1. the pump turbine unit for micro-head, it is characterized in that: comprise pipeline, be provided with in pipeline level install and with rotating shaft arrange generator motor and pump turbine, generator motor is arranged at the position near generating direction, and pump turbine is arranged at the position near direction of drawing water;
Generator motor is fixed in pipeline by multiple fixing support arm, the joint being positioned at one of them fixing support arm above generator motor and tube wall offers the cable export for wearing generator motor cable, and cable export connects grid-connected frequency variator and protecting control equipment;
Pump turbine includes special runner, described special runner comprises the wheel hub of spheric and is arranged at the blade of wheel hub, wheel hub is arranged in rotating shaft, blade is set to the blade of slender type distorted shape and the leaf margin end of blade has the recess of arc, and the cross section chord length of blade increases gradually from blade root side direction leaf margin side;
The ratio range of the length of pipeline and the diameter of described special runner is 0.6 to 3;
The waterpower of upstream drives the special runner of pump turbine to rotate to a direction and then drives generator motor generating, and generator motor drives the special runner of described pump turbine to rotate to another direction and then upstream draws water.
2. a kind of pump turbine unit for micro-head as claimed in claim 1, is characterized in that: the water export of pipeline is set to the tapering type water export of flaring.
3. a kind of pump turbine unit for micro-head as claimed in claim 1, is characterized in that: the flow inlet of pipeline and/or water export are provided with the device for cutting off current.
4. a kind of pump turbine unit for micro-head as claimed in claim 1, is characterized in that: the pump turbine unit for micro-head is connected and fixed on bulkhgead gate or riverbed by fixing device.
5. a kind of pump turbine unit for micro-head as claimed in claim 1, is characterized in that: the working head of the special runner of pump turbine is 0 ~ 2.5m.
6. a kind of pump turbine unit for micro-head as claimed in claim 1, is characterized in that: fixing support arm is uniformly distributed setting along the outer circumference of the shell of generator motor.
7. a kind of pump turbine unit for micro-head as claimed in claim 6, is characterized in that: fixing support arm be the setting of equidistant annular spread along the outer circumference of the shell of generator motor.
8. a kind of pump turbine unit for micro-head as claimed in claim 7, is characterized in that: fixing support arm helically arranges on the outer circumferential face of the shell of generator motor.
9. a kind of pump turbine unit for micro-head as claimed in claim 1, is characterized in that: the ratio range of the length of pipeline and the diameter of special runner is 0.6 to 1.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320702547.7U CN204082417U (en) | 2013-11-08 | 2013-11-08 | A kind of pump turbine unit for micro-head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320702547.7U CN204082417U (en) | 2013-11-08 | 2013-11-08 | A kind of pump turbine unit for micro-head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204082417U true CN204082417U (en) | 2015-01-07 |
Family
ID=52175144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320702547.7U Withdrawn - After Issue CN204082417U (en) | 2013-11-08 | 2013-11-08 | A kind of pump turbine unit for micro-head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204082417U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590962A (en) * | 2013-11-08 | 2014-02-19 | 中水珠江规划勘测设计有限公司 | Pump turbine set for micro water head |
-
2013
- 2013-11-08 CN CN201320702547.7U patent/CN204082417U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590962A (en) * | 2013-11-08 | 2014-02-19 | 中水珠江规划勘测设计有限公司 | Pump turbine set for micro water head |
| CN103590962B (en) * | 2013-11-08 | 2016-08-17 | 中水珠江规划勘测设计有限公司 | A kind of pump turbine unit for micro-head |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2019061841A1 (en) | Multi-stage tidal current energy water turbine based on real-time adjustable guide cover rotation angle | |
| CN104595094B (en) | hydraulic turbine generator | |
| CN102828890B (en) | A kind of hydro-generating Unit for micro-head waterpower development | |
| CN106593744A (en) | Shaft through-flow turbine provided with tidal current energy rotating wheels | |
| CN104179625A (en) | Straight-pipe ultramicro water turbine | |
| CN103590962B (en) | A kind of pump turbine unit for micro-head | |
| CN109441691B (en) | Mixed-flow water turbine with tail water pipe and rectifying plate | |
| CN103953497A (en) | Vortex type power mechanism | |
| CN105927458A (en) | Ultralow-water head backflow type bell-shaped water turbine | |
| CN107461291B (en) | Down-stroke type waterwheel for low-head miniature hydropower station | |
| CN204082417U (en) | A kind of pump turbine unit for micro-head | |
| CN107489592A (en) | Hydroelectric generating system | |
| CN103953491B (en) | A kind of hydrodynamic(al) cooling tower directly drives radial water turbine | |
| CN203430690U (en) | Standard-type floating-tube-type hydroelectric generator | |
| CN201982229U (en) | Miniature self-contained pipe flowing water turbine generator set | |
| WO2019061840A1 (en) | Compound multi-stage tidal current energy power generation water turbine | |
| CN205225561U (en) | Tubular environment friendly hydraulic turbine | |
| CN108005834A (en) | A kind of flow type centripetal turbine | |
| CN105863929B (en) | A kind of Portable hydroelectric device with foldable class ellipse kuppe | |
| CN205025681U (en) | Improved generation water wheels power generation facility of increase high energy | |
| CN210370998U (en) | Vertical hydraulic generator | |
| CN103388548A (en) | Direct hydraulic turbine generator | |
| CN201925078U (en) | Pipe flow type hydro-generator | |
| CN207974908U (en) | A kind of pipe type power generation machine | |
| CN207598414U (en) | Tide and flow magnitude electricity generation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150107 Effective date of abandoning: 20160817 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20150107 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |