CN201158814Y - Layered water drawing structure - Google Patents

Layered water drawing structure Download PDF

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Publication number
CN201158814Y
CN201158814Y CNU2007202010446U CN200720201044U CN201158814Y CN 201158814 Y CN201158814 Y CN 201158814Y CN U2007202010446 U CNU2007202010446 U CN U2007202010446U CN 200720201044 U CN200720201044 U CN 200720201044U CN 201158814 Y CN201158814 Y CN 201158814Y
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CN
China
Prior art keywords
water
gate
stoplog
tower
water intake
Prior art date
Application number
CNU2007202010446U
Other languages
Chinese (zh)
Inventor
周钟
游湘
刘平禄
贾刚
王希成
秦永涛
杨继亚
李亚农
Original Assignee
中国水电顾问集团成都勘测设计研究院
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Application filed by 中国水电顾问集团成都勘测设计研究院 filed Critical 中国水电顾问集团成都勘测设计研究院
Priority to CNU2007202010446U priority Critical patent/CN201158814Y/en
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Publication of CN201158814Y publication Critical patent/CN201158814Y/en

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Abstract

The utility model discloses a layered water intake structure of a water intake of a water intake tower (or a dam) in hydraulic and hydroelectric engineering, which can obtain surface water for supply water, watering and drawing water to generate power. The layered water intake structure has simple structure, which is suitable for various water intakes. At least one stop log gate can long lift along the height direction of a tower body is arranged on a water intake of the tower body, and each stop log gate is respectively connected with a lifting mechanism through a hydraulic automatic grabbing beam. The layered water intake structure guarantees that the water intake can get upper water from a reservoir under different working conditions, reduces negative environmental impact of releasing low-temperature water, and is suitable for various layered water intake buildings of the hydraulic and hydroelectric engineering, and lowers the requirements to the field of engineering teams, and particularly solves the layered water intake problems of high dams, deep reservoirs and hydraulic power stations with big flow and narrow site. The utility model has the advantages of simple arrangement, flexible and convenient operation, better reliability, investment saving, little influence to pivot layout, and little influence to power station energy indexes and the like, which can be popularized and used in many large and medium hydropower plants which are designed at present.

Description

The stratified pumping structure

Technical field

The utility model relates to a kind of water intaking structure that the intake place uses in Hydraulic and Hydro-Power Engineering, especially relate to a kind of in Hydraulic and Hydro-Power Engineering the intake place of intake tower (or dam) can obtain surface water be used to supply water, irrigate and the stratified pumping structure of the diversion of generating electricity.

Background technology

Intake tower is sluicing in the Hydraulic and Hydro-Power Engineering and the stem building in the diversion system, must have the function of fetching water as required from the water source, also must guarantee the water intaking quality, and can controlled water flow, as shown in Figure 1.Stratified pumping is as the deduction and exemption measure of letting out water at low temperature under the reservoir, and research is few at home, does not still have engineering practice at present.After reservoir forms, reservoir to the water yield regulate and store and water body to the variation of conditions such as heat storage, to impact reservoir area and lower reache distribution of water temperature, thereby the aquatile environment is impacted, under different operating modes, all can get upper water so preferably guarantee intake, alleviate the negative environmental consequences of letting out water at low temperature down.

At present, stratified pumping building pattern mainly contains forms such as multilayer intake, plate-turning door.The characteristics of multilayer intake arrangement are along vertically being set as several imports highly respectively by water intaking with the water channel water inlet, each import can both be satisfied the water intaking ability, close the lower water inlet gate when water level is higher, open the lower water inlet gate when water level is low, the many more structures of this arrangement intake number of plies are complicated more, physical dimension is big more, is suitable for the engineering (as Fig. 2) that drainage flow is little, the reservoir depth of water little, place, intake place is openr.The characteristics that the turnover panel gate-type is arranged are that turnover panel gate-type gate is set in the front of conventional water inlet channel of approach one, its gate raises or reduction automatically with the lifting of water level, this mode is moved simply, but the maintenance of gate is difficulty comparatively, the structure design difficulty was bigger when the depth of water was big, only on the minority small hydraulic project application was arranged at present.

This gate pattern of Stoplog gate all has a large amount of application examples in the Hydraulic and Hydro-Power Engineering at home and abroad.Usually, being mainly used in opening and closing under the hydrostatic condition, is the Service gate creation maintenance condition of downstream canal as Emergency Gate, is characterized in utilizing the lifting of auto clawing beam merogenesis, can alleviate the capacity and the height of lifting appliance, thereby reduce equipment manufacturing cost.Under moving water condition, open and close, also do not have the normal use example.

The utility model content

Technical problem to be solved in the utility model provides a kind of simple in structure and be suitable for the stratified pumping structure of various intakes.

The technical scheme that its technical problem that solves the utility model adopts is: this stratified pumping structure, comprise the intake on the body of the tower that is arranged on intake tower, being provided with at least one joint in intake can be along the Stoplog gate of the short transverse lifting of body of the tower, and every joint Stoplog gate all is connected with hoisting mechanism by the hydraulic automatic grabbing beam.Block lower floor's water at low temperature in the reservoir with Stoplog gate, by operation to Stoplog gate, make reservoir surface water enter generating or irrigation water-carriage system by aperture, Stoplog gate top, change according to the reservoir operating water level, mention or put down the Stoplog gate of corresponding joint number, quote reservoir surface water thereby reach, improve the purpose of the temperature that sluices down.

For the ease of the lifting control of Stoplog gate, on the body of the tower of intake tower, be respectively arranged with the stoplog groove of arranging along the short transverse of body of the tower, Stoplog gate is arranged in the stoplog groove.

For adapting to the needs of the dark and power station flow of different heights of dam, storehouse, the short transverse stacked arrangement along body of the tower in stoplog groove has the more piece Stoplog gate.

In order to prevent that floating thing etc. in the reservoir from entering the generating water inlet of back and damage generating equipment, is provided with trashrack, and preferably Stoplog gate is arranged in the rear side of trashrack along water (flow) direction in the water inlet.

The beneficial effects of the utility model are: intake adopts Stoplog gate stratified pumping structure, guaranteed that intake all can get upper water from reservoir under different operating modes, has alleviated the negative environmental consequences of time letting out water at low temperature.Stoplog gate stratified pumping technology of the present utility model is applicable to the various stratified pumping buildings of Hydraulic and Hydro-Power Engineering, reduced the requirement of engineering to the place, has especially solved the stratified pumping problem in the narrow and small power station of high dam, Shen Ku, big flow, place.This technology has arranges simply, and flexible operation is convenient, reliability better and reduced investment, to hinge arrange influence little, to advantages such as momentum indicator influence in power station are little.Can promote the use of in the many large and medium-sized power station of design at present.

Description of drawings

Fig. 1 is the structural representation of existing intake tower.

Fig. 2 is the structure diagram of existing multilayer intake tower.

Fig. 3 is a structure diagram of the present utility model.

Be labeled as trashrack 1, Stoplog gate 2, Emergency Gate 3, quick Emergency Gate 4, trashrack pier 5, trashrack groove 6, stoplog groove 7, stull 8, vertical support 9, two-way gantry gate hoists 10, body of the tower 11 among the figure.

Arrow is a water (flow) direction among the figure.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

As shown in Figure 3, stratified pumping structure of the present utility model is the water inlet on the body of the tower 11 of intake tower, and being provided with at least one joint can be along the Stoplog gate 2 of the short transverse lifting of body of the tower 11, and every joint Stoplog gate 2 all is connected with hoisting mechanism by the hydraulic automatic grabbing beam.Block lower floor's water at low temperature in the reservoir with Stoplog gate 2, by operation to Stoplog gate 2, can make reservoir surface water enter generating or irrigation water-carriage system by aperture, Stoplog gate 2 top, change according to the reservoir operating water level, utilize hoisting mechanism to mention or put down the Stoplog gate of corresponding joint number, quote reservoir surface water thereby reach, improve the purpose of the temperature that sluices down.

Reliably Stoplog gate 2 is operated for convenience, be convenient to the lifting control of Stoplog gate, on the body of the tower 11 of intake tower, be respectively arranged with the stoplog groove of arranging along the short transverse of body of the tower 11 7, Stoplog gate 2 is arranged in the stoplog groove 7.For adapting to the needs of the dark and power station flow of different heights of dam, storehouse, more piece Stoplog gate 2 in stoplog groove 7 along the short transverse stacked arrangement of body of the tower 11.Like this, when water level is higher, more piece Stoplog gate 2 all can be put down, the superficial water in reservoir or river enters generating or irrigation water-carriage system from the top of Stoplog gate 2, after drawdown, can top a joint or more piece Stoplog gate 2 be mentioned according to its actual water level, guarantee that the superficial water in reservoir or river can enter generating or irrigation water-carriage system from the aperture that forms between the Stoplog gate 2.Certainly, the joint number of Stoplog gate 2 is provided with according to the temperature changing trend of the water in reservoir or the river from the top layer to the bottom, changes from the top layer to the bottom when very fast as water temperature, and more piece Stoplog gate 2 can be set, water temperature changes from the top layer to the bottom than time slack, and the Stoplog gate 2 of less joint number can be set.

In order to prevent that floating thing etc. in the reservoir from damage for the generating equipment of back etc., be provided with trashrack 1 usually in the water inlet.Trashrack 1 can be arranged on the front of Stoplog gate 2, also can be arranged on the back of Stoplog gate 2, in order to guarantee the reliability of Stoplog gate 2 liftings, prevent that floating thing etc. from impacting lifting of Stoplog gate 2 etc., preferably is arranged in Stoplog gate 2 rear side of trashrack 1 along water (flow) direction.According to common design, trashrack 1 setting is installed in the trashrack groove 6, and trashrack groove 6 is arranged on the trashrack pier 5 of body of the tower 11 of water inlet.Generally, trashrack 1 can adopt twice, and the upstream is work trashrack and every hole one fan grid leaf, and the downstream is standby trashrack, the shared fan grid leaf of porous.When removing contamination, mention a hole Stoplog gate earlier, put down standby trashrack, mention the work trashrack dirt on it is cleared up.

In order to reduce the distortion of Stoplog gate 2, the meet water pressure of side of balance Stoplog gate 2, the rear side along the Stoplog gate 2 of water (flow) direction is provided with the plane supporting structure that contacts with the trailing flank of Stoplog gate 2.This braced structures can adopt multiple form of structure to realize, generally, this plane supporting structure can adopt along spaced apart stull 8 of the trailing flank of Stoplog gate 2 and vertical support 9 and reach the purpose that supports Stoplog gate 2, stull 8 can be played effective supporting to Stoplog gate 2 with vertical support 9, thereby guarantees the operate as normal of Stoplog gate 2.

Above-mentioned hoisting mechanism can adopt multiple power transmission lifting appliance to realize, for example adopts the two-way gantry gate hoists 10 that are arranged on body of the tower 11 tops to promote Stoplog gate 2.Two-way gantry gate hoists 10 are existing equipment, by door frame, main hoisting mechanism, the upstream revolution is sling and is risen mechanism, slew gear is hung in the upstream revolution, traveling mechanism of the larger traveller, wheeling mechanisms etc. are partly formed, these two-way gantry gate hoists 10 can lift by crane power station water inlet Emergency Gate, power station water inlet Emergency Gate and hydraulic hoist, intake work trashrack, the standby trashrack of intake, intake stratified pumping Stoplog gate, dam facing sundries etc., wherein Stoplog gate adopts the revolution lifting mechanism by the lifting of hydraulic automatic grabbing beam, works the Stoplog gate that hangs out dam facing and moves to Men Kunei by the traveling mechanism of the larger traveller of two-way gantry gate hoists 10 and slew gear and deposit.

For dirt is kept off in the front of trashrack 1, avoid influence to subsequent step, Stoplog gate 2 is arranged on the back of trashrack 1.Like this, dirt is blocked by trashrack 1 when current are flowed through trashrack 1, can the diversion of back not impacted.

Embodiment:

As shown in Figure 3, stratified pumping structure of the present utility model, its intake tower designs according to conventional power plant water inlet pattern.Being from upstream to the downstream primary structure is followed successively by: trashrack from trashrack 1 to Stoplog gate 2 and water proof stoplog gate segment, trashrack 1 to the water intaking forebay section the Emergency Gate 3, Emergency Gate 3 to generating intake tower section three parts the quick Emergency Gate 4.

Trashrack and water proof stoplog gate segment are the control section from the reservoir water intaking, trashrack 1 back is a Stoplog gate 2, and Stoplog gate 2 width are suitable with trashrack, and Stoplog gate overall height and joint number are determined according to reservoir level and water temperature of reservoir situation, reservoir surface water is taken in assurance, improves reservoir and sluices warm down.The width of trashrack and highly to press overcurrent flow velocity 0.8m/s~1.2m/s definite.The top of body of the tower 11 is provided with two-way gantry gate hoists 10, satisfies operation, maintenance needs that trashrack 1 has reached the Stoplog gate of impermeable role.

Water intaking forebay section is the current transition region, mainly act as to make the surface layer water of obtaining from reservoir can enter the generating water inlet after by gate smooth-goingly.This segment structure size mainly determines according to streamflow regime, and the principal element that needs to consider is the pool inner water position change conditions when fluidised form and the unit load variation pond in.When unit load changes, have significantly " surge-chamber " effect in the pond, " surge-chamber " effect situation consideration when reinforced concrete structure size such as trashrack pier 5, stoplog groove 7, stull 8, vertical support 9 and design of reinforcement also need change in conjunction with unit load in the pond.

Claims (8)

1. stratified pumping structure, comprise the intake on the body of the tower (11) that is arranged on intake tower, it is characterized in that: being provided with at least one joint in intake can be along the Stoplog gate (2) of the short transverse lifting of body of the tower (11), and every joint Stoplog gate (2) all is connected with hoisting mechanism by the hydraulic automatic grabbing beam.
2. stratified pumping structure as claimed in claim 1 is characterized in that: be respectively arranged with the stoplog groove of arranging along the short transverse of body of the tower (11) (12) on the body of the tower (11), Stoplog gate (2) is arranged in the stoplog groove (7).
3. stratified pumping structure as claimed in claim 2 is characterized in that: the short transverse stacked arrangement along body of the tower (11) in the stoplog groove (7) has more piece Stoplog gate (2).
4. as claim 1,2 or 3 described stratified pumping structures, it is characterized in that: be provided with trashrack (1) in the water inlet.
5. stratified pumping structure as claimed in claim 4 is characterized in that: Stoplog gate (2) is arranged in the rear side of trashrack (1) along water (flow) direction.
6. as claim 1,2 or 3 described stratified pumping structures, it is characterized in that: the rear side along the Stoplog gate (2) of water (flow) direction is provided with the plane supporting structure that contacts with the trailing flank of Stoplog gate (2).
7. stratified pumping structure as claimed in claim 6 is characterized in that: described plane supporting structure is spaced apart stull of trailing flank (8) and vertical support (9) along Stoplog gate (2).
8. as claim 1,2 or 3 described stratified pumping structures, it is characterized in that: described hoisting mechanism is for being arranged on the two-way gantry gate hoists (10) at body of the tower (11) top.
CNU2007202010446U 2007-09-19 2007-09-19 Layered water drawing structure CN201158814Y (en)

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101892655A (en) * 2010-07-13 2010-11-24 河海大学 Water level and water quality layering control weir of drainage ditch of rice field
CN101985833A (en) * 2010-11-19 2011-03-16 山东电力工程咨询院有限公司 Static pressure layering water intaking system
CN102392429A (en) * 2011-09-09 2012-03-28 华北水利水电学院 Headwork stratified water intaking method for Yellow River diversion irrigation district
CN102535580A (en) * 2012-03-06 2012-07-04 西安建筑科技大学 Pre-purified selective water intake structure
CN102660978A (en) * 2012-05-25 2012-09-12 中水北方勘测设计研究有限责任公司 Water intake structure for surface layer water taking
CN102677641A (en) * 2012-05-25 2012-09-19 中水北方勘测设计研究有限责任公司 Semicircular integrated gate
CN103266644A (en) * 2013-03-26 2013-08-28 西安建筑科技大学 Device combined with main tower of water intake tower of reservoir for avoiding algae
CN103352448A (en) * 2013-06-14 2013-10-16 山东省水利勘测设计院 Layered water intake gate
CN104631396A (en) * 2015-03-03 2015-05-20 山东农业大学 Superposed water taking gate
CN105178261A (en) * 2015-09-10 2015-12-23 华北水利水电大学 Floating-body automatic stop log gate
CN105300558A (en) * 2015-11-20 2016-02-03 中国电建集团贵阳勘测设计研究院有限公司 Layered water-taking water-temperature observation device of reservoir stop log gate and observation method of same
CN105648976A (en) * 2015-12-30 2016-06-08 浙江大学 Device for automatically controlling diversion of saline water
CN105735214A (en) * 2016-02-03 2016-07-06 中国长江三峡集团公司 Method for slowing down low-temperature water of reservoir project
CN105804027A (en) * 2016-05-11 2016-07-27 中国电建集团成都勘测设计研究院有限公司 Temporary discharge structure reducing ecological flow of low-temperature water for high dam
CN106908277A (en) * 2017-03-07 2017-06-30 林方杰 Water body sample Multi-layer technology device
CN109853669A (en) * 2019-02-01 2019-06-07 长江水利委员会长江科学院 One kind being suitable for power station intake tower water partition curtain layering water fetching device
CN110485508A (en) * 2019-08-12 2019-11-22 中建海峡建设发展有限公司 Seawater jacking area's river water source heat pump water intaking regulation method and system based on prediction

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101892655A (en) * 2010-07-13 2010-11-24 河海大学 Water level and water quality layering control weir of drainage ditch of rice field
CN101985833A (en) * 2010-11-19 2011-03-16 山东电力工程咨询院有限公司 Static pressure layering water intaking system
CN101985833B (en) * 2010-11-19 2012-08-08 山东电力工程咨询院有限公司 Static pressure layering water intaking system
CN102392429A (en) * 2011-09-09 2012-03-28 华北水利水电学院 Headwork stratified water intaking method for Yellow River diversion irrigation district
CN102392429B (en) * 2011-09-09 2013-04-24 华北水利水电学院 Headwork stratified water intaking method for Yellow River diversion irrigation district
CN102535580A (en) * 2012-03-06 2012-07-04 西安建筑科技大学 Pre-purified selective water intake structure
CN102535580B (en) * 2012-03-06 2013-08-14 西安建筑科技大学 Pre-purified selective water intake structure
CN102660978A (en) * 2012-05-25 2012-09-12 中水北方勘测设计研究有限责任公司 Water intake structure for surface layer water taking
CN102677641A (en) * 2012-05-25 2012-09-19 中水北方勘测设计研究有限责任公司 Semicircular integrated gate
CN102660978B (en) * 2012-05-25 2013-10-30 中水北方勘测设计研究有限责任公司 Water intake structure for surface layer water taking
CN103266644A (en) * 2013-03-26 2013-08-28 西安建筑科技大学 Device combined with main tower of water intake tower of reservoir for avoiding algae
CN103352448A (en) * 2013-06-14 2013-10-16 山东省水利勘测设计院 Layered water intake gate
CN104631396A (en) * 2015-03-03 2015-05-20 山东农业大学 Superposed water taking gate
CN105178261A (en) * 2015-09-10 2015-12-23 华北水利水电大学 Floating-body automatic stop log gate
CN105300558A (en) * 2015-11-20 2016-02-03 中国电建集团贵阳勘测设计研究院有限公司 Layered water-taking water-temperature observation device of reservoir stop log gate and observation method of same
CN105648976A (en) * 2015-12-30 2016-06-08 浙江大学 Device for automatically controlling diversion of saline water
CN105648976B (en) * 2015-12-30 2017-05-17 浙江大学 Device for automatically controlling diversion of saline water
CN105735214A (en) * 2016-02-03 2016-07-06 中国长江三峡集团公司 Method for slowing down low-temperature water of reservoir project
CN105804027A (en) * 2016-05-11 2016-07-27 中国电建集团成都勘测设计研究院有限公司 Temporary discharge structure reducing ecological flow of low-temperature water for high dam
CN106908277A (en) * 2017-03-07 2017-06-30 林方杰 Water body sample Multi-layer technology device
CN109853669A (en) * 2019-02-01 2019-06-07 长江水利委员会长江科学院 One kind being suitable for power station intake tower water partition curtain layering water fetching device
CN110485508A (en) * 2019-08-12 2019-11-22 中建海峡建设发展有限公司 Seawater jacking area's river water source heat pump water intaking regulation method and system based on prediction

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Address after: 610072 Sichuan city of Chengdu province's North Road No.

Patentee after: Chengdu Hydroelectric Investigation & Design Institute of SPC

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Address after: 610072 Sichuan city of Chengdu province's North Road No.

Patentee after: Co., Ltd of Chengdu survey and design academy of electricity Jian group of China

Address before: 610072 Sichuan city of Chengdu province's North Road No.

Patentee before: Chengdu Hydroelectric Investigation & Design Institute of SPC

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Owner name: CHINA POWER GROUP CHENGDU INVESTIGATION DESIGN + R

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