CN104564510A - Method and device using conical valve for realizing pressure adjusting and ecological drainage functions in hydropower station - Google Patents
Method and device using conical valve for realizing pressure adjusting and ecological drainage functions in hydropower station Download PDFInfo
- Publication number
- CN104564510A CN104564510A CN201310509654.2A CN201310509654A CN104564510A CN 104564510 A CN104564510 A CN 104564510A CN 201310509654 A CN201310509654 A CN 201310509654A CN 104564510 A CN104564510 A CN 104564510A
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- China
- Prior art keywords
- water
- power station
- tapered valve
- valve
- water turbine
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B15/00—Controlling
- F03B15/02—Controlling by varying liquid flow
- F03B15/04—Controlling by varying liquid flow of turbines
- F03B15/06—Regulating, i.e. acting automatically
- F03B15/08—Regulating, i.e. acting automatically by speed, e.g. by measuring electric frequency or liquid flow
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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
Abstract
The invention discloses a method and a device using a conical valve for realizing pressure adjusting and ecological drainage functions in a hydropower station. The method comprises the following steps of arranging the conical valve on a branch pipe of a water intake main pipe, leading an outlet of the conical valve to a downstream river of the power station by a pipeline, and connecting an adjusting device of the conical valve and a speed adjuster of the power station by a hydraulic pipeline; according to different working states of the power station, controlling the opening degree of the conical valve by the speed adjuster of the power station to control the rotation speed of a water turbine, so as to reduce the damage of a water hammer on a pressure water drainage system, and maintain the downstream ecological flow rate requirement. The method has the characteristics that the hydraulic loss of a flow channel is small, and the structure is reliable; the function of discharging the ecological flow rate is realized, the investment is saved, and the layout of complexes is realized.
Description
Technical field
the present invention relates to a kind of tapered valve to be applied in water power plant and to hold concurrently the method for ecological earial drainage and device do pressure regulation, belong to resist technology field, water power plant.
Background technique
surge shaft, pressure regulator valve are a kind of safety measures of the volute pressure rising that long pressure diversion system water power plant prevention load rejection causes.When pressure diversion pipeline Σ LV/H is greater than 15 ~ 30, pressure releasing facility need be set, surge shaft civilwork engineering quantity is larger, duration is longer, adopt pressure regulator valve investment reduction, reduction of erection time, but the pressure regulator valve function singleness adopted at present, can not Flow-rate adjustment be carried out, and dangerous, therefore apply not extensive.Current reservoir all requires to transfer ecological flow to ensure that dam continues to flow to powerhouse of hydropower station, does not affect ecology, and therefore the original pressure regulator valve adopted only as pressure regulator valve, can not double as the discharge of ecological flow.
Summary of the invention
the object of the invention is to, a kind of technical water supply system of fully-loaded stream turbine-generator units and water supply scheme are provided, namely provide a kind of tapered valve to be applied in water power plant to hold concurrently the method for ecological earial drainage and device do pressure regulation, open and close valve time and aperture can be controlled according to the concrete condition in different power station, to eliminate the pressure increase that water turbine set removal of load causes, thus overcome the deficiencies in the prior art.
technological scheme of the present invention is achieved in that a kind of tapered valve of the present invention is applied in water power plant and as the hold concurrently method of ecological earial drainage of pressure regulation is, the method installs tapered valve on the arm of water intaking supervisor, the outlet of tapered valve causes downstream of hydro-power plant river course through pipeline, and the controlling device of tapered valve is connected with power station speed regulator through hydraulic pipe line; Tapered valve is in the aperture transferring ecological flow under normal circumstances; After removal of load is run in power station, when water turbine set rotating speed rises to the safety value of setting, control tapered valve by power station speed regulator and increase aperture to the aperture needing drawoff discharge, continue to rise to control water turbine set rotating speed, reduce water hammer to the destruction of pressure diversion system; After water turbine set rotating speed is reduced to rated speed, controls tapered valve by power station speed regulator and reduce aperture to the aperture transferring ecological flow.
in preceding method, the safety value that described water turbine set rotating speed rises to setting is that the rotating speed of water turbine set is a little less than rotating speed during maximum (top) speed rising value.
in preceding method, described power station speed regulator is controlled tapered valve by hydraulic pipe line, and power station speed regulator is by electrical control.
in preceding method, the bore of described arm and tapered valve is let out the peak rate of flow that ecological flow and removal of load need release and is determined by down.
be that this device comprises the water turbine set be arranged on water intaking supervisor according to of the present invention a kind of water power plant regulator that said method is formed, the water intaking supervisor of water turbine set front end is provided with into water main valve, and the water intaking supervisor of water inlet main valve front end is provided with arm; Arm is provided with tapered valve, and the import of tapered valve is connected with arm, and the outlet of tapered valve is connected with downstream of hydro-power plant river course through pipeline; The controlling device of tapered valve is connected with power station speed regulator through hydraulic pipe line.
in aforementioned means, described power station speed regulator is connected with guide vane servomotor through hydraulic pipe line, and guide vane servomotor is connected with guide vanes of water turbine.
compared with prior art, the function of the flow of the general load rejection of all only releasing of existing water power plant pressure regulator valve.For different water power plants, project playout is completely different, can not meet different water power plant and double as the service condition transferring ecological flow valve.The present invention is provided with tapered valve and power station speed regulator and hydraulic pressure installation, by the regulation assurance calculation in different water power plant, can control and time controling tapered valve aperture according to different situations, as unit normally run time, aperture is to the position of ecological flow of releasing, as unit generation removal of load, by power station speed regulator, hydraulic pressure installation interlock opens bleeder valve to the aperture needing drawoff discharge, its time protects calculating according to tune and determines, after power station diversion system pressure increase is eliminated, tapered valve aperture closes the position to ecological flow of releasing, effectively can eliminate pressure increase that load rejection brings and transfer ecological flow.The present invention adopts tapered valve and speed regulator, hydraulic pressure installation to link.Have that runner hydraulic loss is little, the reliable feature of structure.And taken into account the function transferring ecological flow, save investment, be convenient to project playout.
Accompanying drawing explanation
fig. 1 is structural representation of the present invention.
being labeled as in accompanying drawing: 1-fetches water supervisor, 2-water turbine set, and 3-is intake main valve, 4-arm, 5-tapered valve, 6-pipeline, 7-controlling device, 8-hydraulic pipe line, 9-power station speed regulator, 10-guide vane servomotor, 11-guide vanes of water turbine.
Embodiment
below in conjunction with accompanying drawing, the present invention is described in further detail, but not as any limitation of the invention.
a kind of tapered valve is applied in water power plant and holds concurrently do pressure regulation the method for ecological earial drainage, the method installs tapered valve 5 on the arm 4 of water intaking supervisor 1, the outlet of tapered valve 5 causes downstream of hydro-power plant river course through pipeline 6, and arm 4 and the bore of tapered valve 5 are let out the peak rate of flow that ecological flow and removal of load need release and determined by down.The controlling device 7 of tapered valve 5 is connected with power station speed regulator 9 through hydraulic pipe line 8.Power station speed regulator 9 is controlled by hydraulic pipe line 8 pairs of tapered valves 5, and power station speed regulator 9 is by electrical control.Tapered valve 5 is in the aperture transferring ecological flow under normal circumstances; After removal of load is run in power station, when water turbine set 2 rotating speed rises to safety value (rotating speed of water turbine set is a little less than the maximum (top) speed rising value) of setting, control tapered valve 5 by power station speed regulator 9 and increase aperture to the aperture needing drawoff discharge, continue to rise to control water turbine set 2 rotating speed, reduce water hammer to the destruction of pressure diversion system; After water turbine set 2 rotating speed is reduced to rated speed, controls tapered valve 5 by power station speed regulator 9 and reduce aperture to the aperture transferring ecological flow.
according to said method form of the present invention a kind of water power plant regulator structural representation as shown in Figure 1, this device comprises the water turbine set 2 be arranged on water intaking supervisor 1, the water intaking supervisor 1 of water turbine set 2 front end is provided with into water main valve 3, and the water intaking supervisor 1 of water inlet main valve 3 front end is provided with arm 4; Arm 4 is provided with tapered valve 5, and the import of tapered valve 5 is connected with arm 4, and the outlet of tapered valve 5 is connected with downstream of hydro-power plant river course through pipeline 6; The controlling device 7 of tapered valve 5 is connected with power station speed regulator 9 through hydraulic pipe line 8.Described power station speed regulator 9 is connected with guide vane servomotor 10 through hydraulic pipe line 8, and guide vane servomotor 10 is connected with guide vanes of water turbine 11.
working principle of the present invention is described as follows:
mitre velve 5 of the present invention is located on the arm 4 before the water inlet main valve 3 of water turbine 1.There are three kinds of working staties:
1, when water turbine set 2 is shut down, the controlling device 7 that power station speed regulator 9 controls mitre velve 5 by hydraulic pipe line 8 under electrical control makes mitre velve 5 be operated in the aperture of discharge ecological flow Q1.
2, when water turbine set 2 normally runs, power station speed regulator 9 controls guide vane servomotor 10 by hydraulic pipe line 8 and opens guide vanes of water turbine 11 under electrical control, and unit normally runs.Meanwhile, power station speed regulator 9 operates controlling device 7 by hydraulic pipe line 8 and makes mitre velve 5 continuation discharge ecological flow Q1 under electrical control.
3, when water turbine set 2 removal of load pressure is elevated to setting value, power station speed regulator 9 action operates mitre velve 5 by hydraulic pipe line 8 increases aperture, and now mitre velve 5 discharges ecological flow Q1 and adds that power station needs the flow Q2 released.Power station speed regulator 9 operates guide vane servomotor 10 by hydraulic pipe line 8 and cuts out guide vanes of water turbine 11, thus controls the rising of water turbine set 2 rotating speed.
Claims (6)
1. a tapered valve is applied in water power plant and holds concurrently do pressure regulation the method for ecological earial drainage, it is characterized in that: the method installs tapered valve (5) on the arm (4) of water intaking supervisor (1), the outlet of tapered valve (5) causes downstream of hydro-power plant river course through pipeline (6), and the controlling device (7) of tapered valve (5) is connected with power station speed regulator (9) through hydraulic pipe line (8); Tapered valve (5) is in the aperture transferring ecological flow under normal circumstances; After removal of load is run in power station, when water turbine set (2) rotating speed rises to the safety value of setting, control tapered valve (5) by power station speed regulator (9) and increase aperture to the aperture needing drawoff discharge, continue to rise to control water turbine set (2) rotating speed, reduce water hammer to the destruction of pressure diversion system; After water turbine set (2) rotating speed is reduced to rated speed, controls tapered valve (5) by power station speed regulator (9) and reduce aperture to the aperture transferring ecological flow.
2. method according to claim 1, is characterized in that: the safety value that described water turbine set (2) rotating speed rises to setting is that the rotating speed of water turbine set (2) is a little less than rotating speed during maximum (top) speed rising value.
3. method according to claim 2, it is characterized in that: described power station speed regulator (9) is controlled tapered valve (5) by hydraulic pipe line (8), power station speed regulator (9) is by electrical control.
4. method according to claim 3, is characterized in that: described arm (4) and the bore of tapered valve (5) are let out the peak rate of flow that ecological flow and removal of load need release and determined by down.
5. the water power plant regulator that method is formed according to the arbitrary claim of claim 1-4, comprise the water turbine set (2) be arranged in water intaking supervisor (1), water intaking supervisor (1) of water turbine set (2) front end is provided with into water main valve (3), and water intaking supervisor (1) of water inlet main valve (3) front end is provided with arm (4); It is characterized in that: arm (4) is provided with tapered valve (5), the import of tapered valve (5) is connected with arm (4), and the outlet of tapered valve (5) is connected with downstream of hydro-power plant river course through pipeline (6); The controlling device (7) of tapered valve (5) is connected with power station speed regulator (9) through hydraulic pipe line (8).
6. water power plant according to claim 5 regulator, is characterized in that: described power station speed regulator (9) is connected with guide vane servomotor (10) through hydraulic pipe line (8), and guide vane servomotor (10) is connected with guide vanes of water turbine (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310509654.2A CN104564510A (en) | 2013-10-25 | 2013-10-25 | Method and device using conical valve for realizing pressure adjusting and ecological drainage functions in hydropower station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310509654.2A CN104564510A (en) | 2013-10-25 | 2013-10-25 | Method and device using conical valve for realizing pressure adjusting and ecological drainage functions in hydropower station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104564510A true CN104564510A (en) | 2015-04-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310509654.2A Pending CN104564510A (en) | 2013-10-25 | 2013-10-25 | Method and device using conical valve for realizing pressure adjusting and ecological drainage functions in hydropower station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104564510A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020207700A1 (en) * | 2019-04-08 | 2020-10-15 | Voith Patent Gmbh | Hydroelectric power plant |
| CN113697909A (en) * | 2021-09-27 | 2021-11-26 | 济南飞蓝水处理设备有限公司 | Method and device for preparing acidic electrolyzed water |
| RU2777683C1 (en) * | 2019-04-08 | 2022-08-08 | Фойт Патент Гмбх | Hydraulic power unit |
| CN116412310A (en) * | 2023-04-11 | 2023-07-11 | 河海大学 | Lifting type pressure regulating tower water hammer protection structure and pressure regulating method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2934640Y (en) * | 2006-07-13 | 2007-08-15 | 武汉市汉诺优电控有限责任公司 | Highly oil-hydraulic kaplan turbine speed regulator |
| CN201582046U (en) * | 2009-11-10 | 2010-09-15 | 天津天裕汇发水电成套设备有限公司 | Speed regulator of water turbine |
| CN201730732U (en) * | 2010-08-13 | 2011-02-02 | 天津市科音自控设备有限公司 | Control type intelligent speed governor of sectionalized closing and pressure regulating valve |
| CN102878002A (en) * | 2012-10-10 | 2013-01-16 | 中国水电顾问集团西北勘测设计研究院 | Method for preventing surge pressure of water turbine water diversion system from rising |
| CN203532152U (en) * | 2013-10-25 | 2014-04-09 | 贵州省水利水电勘测设计研究院 | Pressure regulating device of hydropower station |
-
2013
- 2013-10-25 CN CN201310509654.2A patent/CN104564510A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2934640Y (en) * | 2006-07-13 | 2007-08-15 | 武汉市汉诺优电控有限责任公司 | Highly oil-hydraulic kaplan turbine speed regulator |
| CN201582046U (en) * | 2009-11-10 | 2010-09-15 | 天津天裕汇发水电成套设备有限公司 | Speed regulator of water turbine |
| CN201730732U (en) * | 2010-08-13 | 2011-02-02 | 天津市科音自控设备有限公司 | Control type intelligent speed governor of sectionalized closing and pressure regulating valve |
| CN102878002A (en) * | 2012-10-10 | 2013-01-16 | 中国水电顾问集团西北勘测设计研究院 | Method for preventing surge pressure of water turbine water diversion system from rising |
| CN203532152U (en) * | 2013-10-25 | 2014-04-09 | 贵州省水利水电勘测设计研究院 | Pressure regulating device of hydropower station |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020207700A1 (en) * | 2019-04-08 | 2020-10-15 | Voith Patent Gmbh | Hydroelectric power plant |
| RU2777683C1 (en) * | 2019-04-08 | 2022-08-08 | Фойт Патент Гмбх | Hydraulic power unit |
| CN113697909A (en) * | 2021-09-27 | 2021-11-26 | 济南飞蓝水处理设备有限公司 | Method and device for preparing acidic electrolyzed water |
| CN116412310A (en) * | 2023-04-11 | 2023-07-11 | 河海大学 | Lifting type pressure regulating tower water hammer protection structure and pressure regulating method |
| CN116412310B (en) * | 2023-04-11 | 2023-09-12 | 河海大学 | Lifting type pressure regulating tower water hammer protection structure and pressure regulating method |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150429 |
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| RJ01 | Rejection of invention patent application after publication |