CN202811180U - Hydro electric generating unit for micro-water-head hydroenergy development - Google Patents
Hydro electric generating unit for micro-water-head hydroenergy development Download PDFInfo
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- CN202811180U CN202811180U CN2012205072549U CN201220507254U CN202811180U CN 202811180 U CN202811180 U CN 202811180U CN 2012205072549 U CN2012205072549 U CN 2012205072549U CN 201220507254 U CN201220507254 U CN 201220507254U CN 202811180 U CN202811180 U CN 202811180U
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Abstract
The utility model discloses a hydro electric generating unit for micro-water-head hydroenergy development and relates to the technical field of hydroelectric generation. The hydro electric generating unit comprises a plurality of hydroelectric generators. Each hydroelectric generator comprises a pipeline. A synchronization permanent magnet generator and a hydraulic turbine are arranged inside each pipeline. The synchronization permanent magnet generator is fixed in the pipeline through a plurality of hollow fixing pipes. A cable penetrating outlet used for penetrating through a synchronization permanent magnet generator cable is arranged on a junction of one of the fixing pipes above the synchronization permanent magnet generator and a pipeline wall. The cable penetrating outlet is provided with a grid-connection frequency converter and a protective control device. Due to the synchronization permanent magnet generator, a synchronization magnetizing exciter control device is eliminated by the generator. Due to usage of the grid-connection frequency converter, grid-connection of a generator unit is simple, unit rotate speed is not limited in a certain rotate speed range, a speed regulating device can be canceled, and a generating auxiliary system is simplified. Therefore, the structure of the generator is simple, a large amount of civil engineering cost and device cost is saved, and popularization in the market is facilitated.
Description
Technical field
The application relates to the hydraulic power generation technology field, particularly relates to a kind of hydroelectric power unit for little head waterpower development.
Background technique
Hydroelectric power is one of human best renewable green energy resource of cleaning that finds so far, and therefore, countries in the world all have been placed on the exploitation water-energy generating electricity preferential position of energy development.Up to the present, traditional water-energy generating electricity development scheme and technology are very ripe, and this development scheme is that head is higher on the whole, and Economy is better, more have exploitation to be worth, otherwise head are lower, and its Economy is poorer, and more exploitation is not worth.Therefore, with regard to the water power plant that present China has developed or developed, general head be it is generally acknowledged (hereinafter referred to as little head) below 2.5 meters because its energy density is lower, single-point generating (installation) scale is less all more than 2.5 meters, generated energy is also few, not yet causes people's interest.
Yet, little head hydraulic power potentials extremely enriches in China, in order to realize taking full advantage of water resources, utilize the waterpower of little head section to generate electricity also very important, yet, the rotary wheel of water turbine that is applicable at present this head section is blank basically, optional without suitable hydraulic generator unit, if select the existing bulb tubular hydraulic generating set that is applicable to more than 2.5 meters, then the Economy of exploitation is too poor, and be considered to be worth without exploitation, reason is as follows: (1) existing bulb tubular hydraulic generating set development scheme need be built dam and power plant building, and corresponding civil engineering costs generally all can account for 30% to 50% of whole engineering cost; (2) the synchronous hydraulic generator unit of scaled bulb tubular need to have complete water turbine governing and the auxiliary equipment system of a cover to assist; yet; it is bulky that synchronous generator is low owing to its rotating speed, magnetic pole causes more; but also need to be equipped with corresponding excitation and a large amount of Protection control systems; so that the complex structure of this unit, its cost generally all can account for 40% to 60% of whole engineering cost.
Therefore, for little head hydraulic power potentials, if adopt the synchronous hydraulic generator unit of existing scaled bulb tubular to develop, then be difficult to bear the costs such as the civil engineering costs that involves great expense and multiple corollary equipment, in addition, suitable rotary wheel of water turbine is not yet arranged in the prior art.
The application content
The application's purpose is to avoid deficiency of the prior art and a kind of hydroelectric power unit for little head waterpower development is provided, the hydroelectric power unit that should be used for little head waterpower development is simple in structure, can save a large amount of civil engineering costs and equipment manufacturing cost, be convenient to popularizing and promoting on the market.
The application's purpose is achieved through the following technical solutions.
A kind of hydroelectric power unit for little head waterpower development is provided, includes a plurality of hydroelectric powers
Machine, hydroelectric generator comprises pipeline, the water turbine that is provided with the synchronous permanent-magnet generator in the pipeline and is connected with the synchronous permanent-magnet generator; The synchronous permanent-magnet generator is fixed in the pipeline by the fixed tube of a plurality of hollows; one end of the fixed tube of hollow is connected with the shell of synchronous permanent-magnet generator; the other end of the fixed tube of hollow is connected with inner-walls of duct; the fixed tube of one of them hollow and the joint of tube wall offer be used to the cable export that wears synchronous permanent-magnet generator cable; the cable export is provided be incorporated into the power networks frequency variator and protection control apparatus, and synchronous permanent-magnet generator cable wears the cable export, also is electrically connected be incorporated into the power networks frequency variator and protection control apparatus respectively.By being the low tension power supply of 50HZ after the frequency conversion, send by cable, or by power transformer access electric power system.
Preferably, the flow inlet of pipeline is provided with the horn-like manger board that joins with pipeline.
Another is preferred, and the runner of water turbine is set to the runner of the minute-pressure flow velocity type of spiral two blade types or spiral three blade types.
Preferred, the wheel hub of runner is the post taper.
Another is preferred, and cable export place is provided with the airtight installation room that inverter can be installed, and be incorporated into the power networks frequency variator and protection control apparatus all are positioned in the airtight installation room.
Another is preferred, and the water export of pipeline is set to the tapering type water export of flaring.
Another is preferred, and the flow inlet of pipeline and/or water export are provided with for the gate that cuts off current.
Another is preferred, and a plurality of hydroelectric generators are the setting of vertically arranging, and interconnects by buoyancy tank respectively between a plurality of hydroelectric generator.
Another is preferred, and the pipeline outer wall of hydroelectric generator is provided with the anchor formula fixing device that is connected for adjacent hydroelectric generator.Another is preferred, is connected by buoyancy tank with adjacent unit.
The application's beneficial effect is as follows:
The application's structure includes a plurality of hydroelectric generators, and hydroelectric generator comprises pipeline, the water turbine that is provided with the synchronous permanent-magnet generator in the pipeline and is connected with the synchronous permanent-magnet generator; The synchronous permanent-magnet generator is fixed in the pipeline by the fixed tube of a plurality of hollows, and an end of the fixed tube of hollow is connected with the shell of synchronous permanent-magnet generator, and the other end of the fixed tube of hollow is connected with inner-walls of duct; The fixed tube of one of them hollow and the joint of tube wall offer be used to the cable export that wears synchronous permanent-magnet generator cable; the cable export is provided be incorporated into the power networks frequency variator and protection control apparatus; synchronous permanent-magnet generator cable wears the cable export; and be electrically connected be incorporated into the power networks frequency variator and protection control apparatus respectively; the application adopts the synchronous permanent-magnet generator; can be so that generator cancellation exciter alternator control gear; owing to used the frequency variator that is incorporated into the power networks; generator set is incorporated into the power networks simply; generating unit speed is unrestricted in certain speed range; can cancel speed control device; simplify the generating auxiliary system; thereby make the simple in structure of generator; can save a large amount of civil engineering costs and equipment manufacturing cost, be convenient to popularizing and promoting on the market.
The movable guide vane of prior art is used for adjust flux, and is used for cutting off current during compressor emergency shutdown, and therefore the application, can not establish movable guide vane owing to adopt the frequency conversion interconnection technology, and rotaring wheel structure is simplified, and cost is low, is convenient to make and processing.
Concrete, the flow inlet of pipeline 1 is provided with the horn-like manger board 5 that joins with pipeline 1.Can gush high water level in the part, make the flow inlet of pipeline 1 and the water export of pipeline 1 form certain head.
The runner of water turbine 3 is set to the runner of the minute-pressure flow velocity type of spiral two blade types or spiral three blade types.The wheel hub of runner is the post taper.The runner of this kind structure is a kind ofly to be specifically applied to little head power station, to utilize water flow dynamic energy can be converted into water the runner of mechanical energy.
Concrete, cable export place is provided with airtight installation room 8, and be incorporated into the power networks frequency variator and protection control apparatus all are positioned in the airtight installation room 8.
Concrete, a plurality of hydroelectric generators are the setting of vertically arranging, and interconnect by buoyancy tank 7 respectively between a plurality of hydroelectric generator.
Concrete, pipeline 1 outer wall of hydroelectric generator is provided with the anchor formula fixing device 6 that is connected for adjacent hydroelectric generator.As shown in Figure 3, the application's hydroelectric generator is connected by buoyancy tank 7 with adjacent unit.Can be fixed in anchor formula fixing device 6 by buoyancy tank 7 realizes being connected with adjacent unit.The buoyancy tank 7 of both sides is fixed by foreign object, so that all units is fixing.
Description of drawings
Utilize accompanying drawing that the application is described further, but the content in the accompanying drawing does not consist of any restriction to the application.
Fig. 1 is the application's embodiment's 1 the structural representation of a hydroelectric generator.
Fig. 2 is the view that the application's embodiment's 1 the floating of a hydroelectric generator is installed.
Fig. 3 is the application's embodiment's 1 view.
Fig. 4 is the application's embodiment's 2 the structural representation of a hydroelectric generator.
Fig. 5 is the application's embodiment's 2 the structural representation of another angle of a hydroelectric generator.
Fig. 6 is the application's embodiment's 2 the view of fixed installation of a hydroelectric generator.
In Fig. 1 to Fig. 6, include:
1---pipeline;
2---the shell of synchronous permanent-magnet generator;
3---water turbine;
4---fixed tube;
5---horn-like manger board;
6---anchor formula fixing device;
7---buoyancy tank;
8---installation room;
9---gate.
Embodiment
With the following Examples the application is described further.
Embodiment 1.
A kind of hydroelectric power unit for little head waterpower development of present embodiment as shown in Figure 1, include a plurality of hydroelectric generators, as shown in Figures 2 and 3, hydroelectric generator comprises pipeline 1, the water turbine 3 that is provided with the synchronous permanent-magnet generator in the pipeline 1 and is connected with the synchronous permanent-magnet generator; The synchronous permanent-magnet generator is fixed in the pipeline 1 by the fixed tube 4 of a plurality of hollows, and an end of the fixed tube 4 of hollow is connected with the shell 2 of synchronous permanent-magnet generator, and the other end of the fixed tube 4 of hollow is connected with pipeline 1 inwall; The fixed tube 4 of one of them hollow offers be used to the cable export that wears synchronous permanent-magnet generator cable with the joint of tube wall; the cable export is provided be incorporated into the power networks frequency variator and protection control apparatus, and synchronous permanent-magnet generator cable wears the cable export, also is electrically connected be incorporated into the power networks frequency variator and protection control apparatus respectively.
The application adopts the synchronous permanent-magnet generator, can be so that generator cancellation exciter alternator control gear, owing to used the frequency variator that is incorporated into the power networks, generator set is incorporated into the power networks simply, generating unit speed is unrestricted in certain speed range, can cancel speed control device, simplifies the generating auxiliary system, thereby make the simple in structure of generator, can save a large amount of civil engineering costs and equipment manufacturing cost.
In view of working under the applicable certain speed range of unit of the present invention, it is exerted oneself and has controllability, has the friendly type condition that is incorporated into the power networks, and considers simultaneously that this unit is hided to incorporate at the electrical network end, and low voltage ride through device is installed in suggestion additional, to satisfy electrical network access requirement.
The application's hydroelectric generator adopts the structure of integrated form, is convenient to production and processing, is convenient to the assembling of unit.
Therefore the fixed tube 4 of generator hollow need not establish the movable guide vane of water turbine 3 simultaneously as the outlet of cable and the fixed guide vane of water turbine 3.
The fixed tube 4 of hollow arranges along outer circumferentially evenly distribution of the shell 2 of synchronous permanent-magnet generator, when using as fixed guide vane, seat ring (overcurrent part) is become one, and makes simultaneously current enter the front circular rector that forms of runner.
Preferably, the fixed tube 4 of hollow circumferentially is equidistant annular spread setting along the shell 2 of synchronous permanent-magnet generator outer, and preferred, the fixed tube 4 of hollow is helical arrangement at the outer circumferential face of the shell 2 of synchronous permanent-magnet generator.Form circular rector before can making better current enter runner.
Embodiment 2.
A kind of hydroelectric generator such as Fig. 4 for little head waterpower development of present embodiment is extremely shown in Figure 6, and the main technical schemes of present embodiment is identical with embodiment 1, and unaccounted feature adopts the explanation among the embodiment 1 in the present embodiment, no longer gives unnecessary details at this.Present embodiment and embodiment's 1 difference is:
The water export of pipeline 1 is set to the tapering type water export of flaring.Be conducive to reclaim the kinetic energy energy of outlet of rotary wheel, improve unit efficiency.
The flow inlet of pipeline 1 and/or water export are provided with for the gate 9 that cuts off current.For conventional low water head through-flow unit, it also is that a kind of unit of protecting avoids flying one of the means of operation of escaping that gate 9 is set.The application does not need to protect unit to avoid flying the ease operation by gate 9, and the application's gate 9 only is to make things convenient for unit maintenance, also can cancel.Concrete, the front portion of pipeline 1 or rear portion are provided with for the gate 9 that cuts off current.For conventional low water head through-flow unit, it also is that a kind of unit of protecting avoids flying one of the means of operation of escaping that gate 9 is set.The application does not need to protect unit to avoid flying the ease operation by gate 9, and the application's gate 9 only is to make things convenient for unit maintenance, also can cancel.
Should be noted that at last; above embodiment only be used for explanation the application technological scheme but not to the restriction of the application's protection domain; although with reference to preferred embodiment the application has been done detailed description; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement the application's technological scheme, and not break away from essence and the scope of present techniques scheme.
Claims (9)
1. hydroelectric power unit that is used for little head waterpower development, it is characterized in that: include a plurality of hydroelectric generators, hydroelectric generator comprises pipeline, the water turbine that is provided with the synchronous permanent-magnet generator in the pipeline and is connected with the synchronous permanent-magnet generator; The synchronous permanent-magnet generator is fixed in the pipeline by the fixed tube of a plurality of hollows, and an end of the fixed tube of hollow is connected with the shell of synchronous permanent-magnet generator, and the other end of the fixed tube of hollow is connected with inner-walls of duct; The fixed tube of one of them hollow and the joint of tube wall offer be used to the cable export that wears synchronous permanent-magnet generator cable; the cable export is provided be incorporated into the power networks frequency variator and protection control apparatus, and synchronous permanent-magnet generator cable wears the cable export, also is electrically connected be incorporated into the power networks frequency variator and protection control apparatus respectively.
2. a kind of hydroelectric power unit for little head waterpower development according to claim 1, it is characterized in that: the flow inlet of pipeline is provided with the horn-like manger board that joins with pipeline.
3. a kind of hydroelectric power unit for little head waterpower development according to claim 1, it is characterized in that: the runner of water turbine is set to the runner of the minute-pressure flow velocity type of spiral two blade types or spiral three blade types.
4. a kind of hydroelectric power unit for little head waterpower development according to claim 3, it is characterized in that: the wheel hub of runner is the post taper.
5. a kind of hydroelectric power unit for little head waterpower development according to claim 1, it is characterized in that: cable export place is provided with airtight installation room, and be incorporated into the power networks frequency variator and protection control apparatus all are positioned in the airtight installation room.
6. a kind of hydroelectric power unit for little head waterpower development according to claim 1, it is characterized in that: the water export of pipeline is set to the tapering type water export of flaring.
7. a kind of hydroelectric power unit for little head waterpower development according to claim 1 is characterized in that: the flow inlet of pipeline and/or water export are provided with for the gate that cuts off current.
8. according to claim 1 to the described a kind of hydroelectric power unit for little head waterpower development of 7 any one, it is characterized in that: a plurality of hydroelectric generators are the setting of vertically arranging, and interconnect by buoyancy tank respectively between a plurality of hydroelectric generator.
9. a kind of hydroelectric power unit for little head waterpower development according to claim 8 is characterized in that: the pipeline outer wall of hydroelectric generator is provided with the anchor formula fixing device that is connected for adjacent hydroelectric generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205072549U CN202811180U (en) | 2012-09-29 | 2012-09-29 | Hydro electric generating unit for micro-water-head hydroenergy development |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205072549U CN202811180U (en) | 2012-09-29 | 2012-09-29 | Hydro electric generating unit for micro-water-head hydroenergy development |
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| Publication Number | Publication Date |
|---|---|
| CN202811180U true CN202811180U (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205072549U Expired - Fee Related CN202811180U (en) | 2012-09-29 | 2012-09-29 | Hydro electric generating unit for micro-water-head hydroenergy development |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202811180U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828890A (en) * | 2012-09-29 | 2012-12-19 | 中水珠江规划勘测设计有限公司 | Hydroelectric generating set for micro-head hydroenergy development |
| 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 |
| CN104500316A (en) * | 2014-12-25 | 2015-04-08 | 萍乡市济田水电设备制造有限公司 | Water-turbine generator set |
| CN108412670A (en) * | 2018-04-07 | 2018-08-17 | 童桥 | Power generation floatation type waterwheel |
-
2012
- 2012-09-29 CN CN2012205072549U patent/CN202811180U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828890A (en) * | 2012-09-29 | 2012-12-19 | 中水珠江规划勘测设计有限公司 | Hydroelectric generating set for micro-head hydroenergy development |
| CN102828890B (en) * | 2012-09-29 | 2016-04-20 | 中水珠江规划勘测设计有限公司 | A kind of hydro-generating Unit for micro-head waterpower development |
| 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 |
| CN104500316A (en) * | 2014-12-25 | 2015-04-08 | 萍乡市济田水电设备制造有限公司 | Water-turbine generator set |
| CN108412670A (en) * | 2018-04-07 | 2018-08-17 | 童桥 | Power generation floatation type waterwheel |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20160929 |