CN102444527A - Water guide device for water turbine - Google Patents
Water guide device for water turbine Download PDFInfo
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- CN102444527A CN102444527A CN2010102976621A CN201010297662A CN102444527A CN 102444527 A CN102444527 A CN 102444527A CN 2010102976621 A CN2010102976621 A CN 2010102976621A CN 201010297662 A CN201010297662 A CN 201010297662A CN 102444527 A CN102444527 A CN 102444527A
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- water
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- pipe
- nozzle needle
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- 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
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- Hydraulic Turbines (AREA)
Abstract
The invention discloses a water guide device for a water turbine. The device comprises a connecting frame, a water inlet bend pipe, a spray pipe, a nozzle head and a nozzle mouth, wherein the water inlet end of the spray pipe is connected with the water inlet bend pipe; the nozzle head and the nozzle mouth are arranged on the spray pipe; and the spray pipe and the water inlet bend pipe are installed on the connecting frame. The device also comprises a spray needle servomotor, a spray needle and a spray needle stem, wherein the spray needle is installed on the spray needle stem and can move back and forth under the control of the spray needle servomotor to change the flow area and adjust the diameter of a water jet column. The device has the following advantages that: the device has a simple structure and is convenient to use; the diameter of the water jet column can be adjusted to meet the requirement of load adjustment; when the spray needle is contacted with the nozzle mouth, namely in the fully closed position, water flow can be sealed, thus playing an intercepting role of the valve; and the spray needle head and the nozzle mouth are forged with 2Cr13 stainless steel, thus having good cavitation and sand abrasion resistance.
Description
Technical field
The present invention relates to a kind of water turbine, especially a kind of water turbine water guider belongs to the water conservancy equipment technical field.
Background technique
Water turbine is to be the transformation of energy of current the dynamic power machine of rotating mechanical energy.Modern water turbine great majority are installed in the water power plant, are used for driving generator for electricity generation.In the water power plant, the water in the upper pond is guided water turbine into through aqueduct, promotes the rotary wheel of water turbine rotation, drives generator for electricity generation.The water of finishing merit then passes through the tail water row of conduits downstream.Head is high more, flow is big more, and the output power of water turbine is also just big more.Reaction turbine is a kind of of water turbine, and it has obtained all over the world using widely with the energy conversion efficiency height.Various types of reaction turbines all are provided with water feed apparatus, and the water feed apparatus of large and medium-sized vertical shaft reaction turbine generally is made up of spiral case, fixed guide vane and movable guide vane.The effect of spiral case is to be evenly distributed to current around the runner.When head below 40 meters the time, the spiral case of water turbine reinforced concrete cast on-site commonly used forms; When head is higher than 40 meters, the then normal metal spiral case that adopts welding or block cast.In reaction turbine, current are full of whole runner channel, and all blade receives the effect of current simultaneously, so under same head, runner diameter is less than impulse turbine.Their peak efficiency also is higher than impulse turbine, but when load variations, the efficient of water turbine receives influence in various degree.Reaction turbine all is provided with draft tube, and its effect is: the kinetic energy that reclaims outlet of rotary wheel place current; Current row downstream; When the mounting point of runner was higher than the level of tail water, this potential energy is converted into pressure can be reclaimed.For the water turbine of the big flow of low water head, the outlet kinetic energy of runner is relatively large, and the recyclability of draft tube has appreciable impact to the efficient of water turbine.Usually the water column that sprays to turbine blade by water guider can not be regulated, and that has so also just caused whole process cannot be controlled.
Summary of the invention
Technical problem to above-mentioned existence the objective of the invention is: proposed a kind of simple in structurely, easy to use, can control the water turbine water guider that sprays the current size.
Technical solution of the present invention is achieved in that a kind of water turbine water guider, comprises link press span, water inlet bend pipe, jet pipe, nozzle tip and nozzle, and said jet pipe feed-water end connects the water inlet bend pipe; Said nozzle tip and nozzle are positioned on the jet pipe; On said jet pipe and installation of water inlet bend pipe and the link press span, it is characterized in that said water turbine water guider also comprises nozzle needle servomotor, nozzle needle and needle stem; Said nozzle needle is contained on the needle stem; Can under the manipulation of nozzle needle servomotor, move forward and backward, change flow area, regulate the jetting column diameter; Said nozzle needle, nozzle tip and nozzle have smooth, accurate geometrical shape water passage surface; Streamlined water guide leaf grating is equipped with at said nozzle entrance place.
Further, on the said water inlet bend pipe pressure gauge is housed.
Further, said water turbine water guider also comprises the speed regulator that can control the nozzle needle opening and closing time, and said speed regulator links to each other with the nozzle needle servomotor.
Further, said nozzle needle head and nozzle are by the forging of 2Cr13 stainless steel.
The utility model has the advantages that: nozzle needle, nozzle tip and nozzle have accurate geometrical shape and smooth water passage surface; Near adding nozzle entrance very long streamlined water guide leaf grating is housed; Eliminate the influence of bend pipe to current; Thereby can forming closely, the jetting post remains on more than 94% its hydraulic efficiency.Nozzle needle is contained on the needle stem, can under the manipulation of nozzle needle servomotor, move forward and backward, and changes flow area; Regulate the jetting column diameter, make it to adapt to the needs of Load Regulation, when nozzle needle contacts with nozzle; When promptly being in the complete shut-down position, can seal current again, play the effect of damming of valve.Moving forward and backward of nozzle needle servomotor is that pressure oil by being contained in the oil pipe of servomotor both sides promotes, and this oil pipe links to each other with speed regulator.Nozzle needle head and nozzle have good anti-cavitation by the forging of 2Cr13 stainless steel, the resisting silt abrasion performance.
Description of drawings
Below in conjunction with accompanying drawing technological scheme of the present invention is described further:
Fig. 1 is the schematic representation of water turbine water guider in water turbine of the utility model.
Wherein: 1 link press span; 2 water inlet bend pipes; 3 jet pipes; 4 nozzle tips; 5 nozzle needles; 6 needle stems; 7 nozzle needle servomotors; 8 pressure gauges.
Embodiment
Below in conjunction with accompanying drawing the present invention is described.
A kind of water turbine water guider as shown in Figure 1 comprises link press span 1, water inlet bend pipe 2, jet pipe 3, nozzle tip 4 and nozzle, and the jet pipe feed-water end connects water inlet bend pipe 2; Nozzle tip 4 is positioned on the jet pipe 3 with nozzle, and on jet pipe 3 and 2 installations of water inlet bend pipe and the link press span 1, the water turbine water guider also comprises nozzle needle servomotor 7, nozzle needle 5 and needle stem 6; Nozzle needle 5 is contained on the needle stem 6; Can under the manipulation of nozzle needle servomotor 7, move forward and backward, change flow area, regulate the jetting column diameter.Make it to adapt to the needs of Load Regulation,, when promptly being in the complete shut-down position, can seal current again, play the effect of damming of valve when nozzle needle contacts with nozzle.Moving forward and backward of nozzle needle servomotor is that pressure oil by being contained in the oil pipe of servomotor both sides promotes, and this oil pipe links to each other with speed regulator.Nozzle needle head and nozzle have good anti-cavitation by the forging of 2Cr13 stainless steel, the resisting silt abrasion performance.Jet pipe is the water-guiding element of Pelton wheel, when high pressure water flows through wherein the fluidic channel of being made up of nozzle tip and nozzle, flow energy all be converted into speed can, form high-speed jet, the directive bucket promotes the runner rotation.Pressure gauge is housed for detecting inner pipe water pressure on it.Nozzle needle, nozzle tip and nozzle have accurate geometrical shape and smooth water passage surface; Near adding nozzle entrance very long streamlined water guide leaf grating is housed; Eliminate the influence of bend pipe, thereby can forming closely, the jetting post remains on more than 94% its hydraulic efficiency to current.
The foregoing description only is explanation technical conceive of the present invention and characteristics; Its purpose is to let the personage that is familiar with this technology can understand content of the present invention and implements; Can not limit protection scope of the present invention with this; All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (4)
1. a water turbine water guider comprises link press span, water inlet bend pipe, jet pipe, nozzle tip and nozzle, and said jet pipe feed-water end connects the water inlet bend pipe; Said nozzle tip and nozzle are positioned on the jet pipe, on said jet pipe and installation of water inlet bend pipe and the link press span, it is characterized in that; Said water turbine water guider also comprises nozzle needle servomotor, nozzle needle and needle stem, and said nozzle needle is contained on the needle stem, can under the manipulation of nozzle needle servomotor, move forward and backward; Change flow area, regulate the jetting column diameter; Said nozzle needle, nozzle tip and nozzle have smooth, accurate geometrical shape water passage surface; Streamlined water guide leaf grating is equipped with at said nozzle entrance place.
2. water turbine water guider according to claim 1 is characterized in that, on the said water inlet bend pipe pressure gauge is housed.
3. water turbine water guider according to claim 1 is characterized in that, said water turbine water guider also comprises the speed regulator that can control the nozzle needle opening and closing time, and said speed regulator links to each other with the nozzle needle servomotor.
4. according to the described water turbine water guider of above claim, it is characterized in that said nozzle needle head and nozzle are by the forging of 2Cr13 stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102976621A CN102444527A (en) | 2010-09-30 | 2010-09-30 | Water guide device for water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102976621A CN102444527A (en) | 2010-09-30 | 2010-09-30 | Water guide device for water turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102444527A true CN102444527A (en) | 2012-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102976621A Pending CN102444527A (en) | 2010-09-30 | 2010-09-30 | Water guide device for water turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102444527A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216376A (en) * | 2013-04-27 | 2013-07-24 | 陈银轩 | Spraying device used for impact power generation device |
| CN107620664A (en) * | 2017-10-24 | 2018-01-23 | 广东银泽金属科技有限公司 | A kind of environment protection energy-saving efficient water guide equipment |
| CN108590920A (en) * | 2018-03-08 | 2018-09-28 | 江苏大学 | A kind of hydraulic turbine installation |
| CN108798981A (en) * | 2018-06-27 | 2018-11-13 | 深圳市玖品空气净化科技有限公司 | A kind of hydroelectric generator with clearing function |
| CN112894697A (en) * | 2021-01-15 | 2021-06-04 | 重庆水轮机厂有限责任公司 | Preassembling method of water distributor of full-spray type water turbine at overflowing part |
-
2010
- 2010-09-30 CN CN2010102976621A patent/CN102444527A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216376A (en) * | 2013-04-27 | 2013-07-24 | 陈银轩 | Spraying device used for impact power generation device |
| CN103216376B (en) * | 2013-04-27 | 2016-06-08 | 陈银轩 | A kind of jet apparatus for impacting power generation assembly |
| CN107620664A (en) * | 2017-10-24 | 2018-01-23 | 广东银泽金属科技有限公司 | A kind of environment protection energy-saving efficient water guide equipment |
| CN108590920A (en) * | 2018-03-08 | 2018-09-28 | 江苏大学 | A kind of hydraulic turbine installation |
| CN108798981A (en) * | 2018-06-27 | 2018-11-13 | 深圳市玖品空气净化科技有限公司 | A kind of hydroelectric generator with clearing function |
| CN112894697A (en) * | 2021-01-15 | 2021-06-04 | 重庆水轮机厂有限责任公司 | Preassembling method of water distributor of full-spray type water turbine at overflowing part |
| CN112894697B (en) * | 2021-01-15 | 2022-10-18 | 重庆水轮机厂有限责任公司 | Preassembling method of water distributor of full-spray type water turbine at overflowing part |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120509 |