CN201778317U - Side inflow pump house diversion device - Google Patents
Side inflow pump house diversion device Download PDFInfo
- Publication number
- CN201778317U CN201778317U CN2010205203993U CN201020520399U CN201778317U CN 201778317 U CN201778317 U CN 201778317U CN 2010205203993 U CN2010205203993 U CN 2010205203993U CN 201020520399 U CN201020520399 U CN 201020520399U CN 201778317 U CN201778317 U CN 201778317U
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- conservancy diversion
- water
- water conservancy
- diversion
- pump house
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/50—Hydropower in dwellings
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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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Abstract
A side inflow pump house diversion device comprises a circulating water pump and a front inflow tank. The circulating water pump is provided with a water sucking chamber, the front inflow tank is provided with a diversion open channel, a diffusion section is arranged at the tail end of the diversion open channel, triangular diversion piers are arranged at the diffusion section of the diversion open channel, and an arc-shaped diversion partition wall is arranged at the front inflow tank. Uniformity and stability of flow state of the front tank and the inflow channel are improved by means of arranging the diversion piers at the outlet of a rotary filter screen of the circulating water pump, adverse affection of penetrating vertical-axis vortex to flow state of water in the channel can be avoided, and water nearby the water suction hole of the water pump has stable flow state and uniform flow distribution and flow speed.
Description
Technical field
The utility model relates to electric power, hydraulic engineering field, refers in particular to a kind of lateral intake pump house water conservancy diversion fairing.
Background technology
Existing 600MW～about 12～the 13m of 1000MW unit electric power plant circulating water pump house forebay geometric depath, about 11～the 12m of pump house flow channel depth, arrange general by existing " steam power station circulating pump room water inlet flow channel and layout design technical stipulation thereof " design, code requirement forebay angle of flare is not more than 40 °, be provided with changeover portion after 90 ° of turnings of forebay, the length of this changeover portion is the width of 5～10 times forebay, rotary sieve outlet angle of flare is pressed code requirement should be greater than 7 °～12 °, circulating pump room water inlet flow channel straight section length is from generally being not less than 5D (D is suction horn mouth diameter), except that circulating water pump water inlet horn mouth and back wall are claimed by instrument factory, do not do concrete regulation for lateral intake pump house water conservancy diversion rectification facilities.
On the other hand, mainly also there is following shortcoming in prior art:
1) tank depth is big before the circulating pump room, and it is big to put sloping heavy excavation construction land tenure scope, for some power plant because of expropriation of land, removal problem or put and have construction of structures inapplicable in the sloping scope;
2) less angle of flare is adopted in the outlet of diversion open channel, current can not be well let out under smooth-going along diffuser from diversion open channel outlet, two recirculating zones among a small circle about the diffuser left and right sides exists, the inhomogeneous flow velocity that goes out interruption-forming narrowing toward each end broad in the middle at the diversion open channel distributes; Too the open channel of Ji Zhonging goes out stream, causes bigger flow velocity, is easy in the water inlet forebay to form shearing with the less water body of flow velocity, thereby causes bad fluidised forms such as backflow in the forebay, whirlpool;
3) 90 ° the bend of being connected to of diversion open channel and water inlet forebay import, angle of turn is big, turning radius is less, the width of intake pool is big than the outlet of diversion open channel, the depth of water is also darker, when eight circulating water pump of operation, be subjected to the influence of current inertia, current are after the outlet of diversion open channel, before entering the shortest side water pump water inlet flow channel import of flow process with bigger flow velocity from the right side, the less water body of water body that water inlet right side, forebay flow velocity is bigger and left side flow velocity produces to be sheared, form on a large scale recirculating zone counterclockwise in the water inlet forebay, produce transverse flow speed from right to left before the water inlet flow channel; The influence of the water pump water inlet flow channel water inlet flow velocity in the middle of being positioned at again simultaneously, water inlet forebay water body produces strong shearing motion, before water inlet forebay and even water inlet flow channel import, produce a series of vortex, aggravate runner import transverse flow speed simultaneously, cause the velocity flow profile of each runner import extremely inhomogeneous, and this degree of irregularity is increasing to the left side runner by the right side runner;
4) it is uneven that runner inlet velocity skewness directly influences the distribution of rotary sieve left and right side inlet flow rate, thereby cause the velocity flow profile in the runner inhomogeneous, makes current form stronger backflow even whirlpool in water inlet flow channel.The existence of backflow and vortex will make water pump assembly produce problems such as vibration, cavitation, efficient reduction in the runner, and directly the safe and highly efficient operation to water pump assembly impacts.
Can reflect thus, the utility model provides a kind of lateral intake pump house water conservancy diversion fairing, and it has improved the uniformity and the stability of the fluidised form of diversion open channel, water inlet forebay and water inlet conductance, and easy construction, can effectively reduce the engineering land used, saves cost.
The utility model content
The utility model provides a kind of lateral intake pump house water conservancy diversion fairing, it has improved the uniformity and the stability of the velocity flow profile of diversion open channel, water inlet forebay and water inlet conductance, bad fluidised forms such as the backflow in the improvement water inlet forebay, whirlpool, and easy construction, can effectively reduce the engineering land used, save cost.
The utility model is achieved in that
A kind of lateral intake pump house water conservancy diversion fairing, it includes: circulating water pump, water inlet forebay, this circulating water pump has suction chamber, this water inlet forebay has the diversion open channel, the end of this diversion open channel is a diffuser, is provided with the leg-of-mutton water conservancy diversion rectification pier of three rows in this diffuser, the leg-of-mutton water conservancy diversion rectification of leg-of-mutton water conservancy diversion pier, can shunt the water body of diversion open channel, improve the water body fluidised form non-uniform phenomenon of diversion open channel.
Preferably, the width of this water conservancy diversion rectification pier changes according to the width of diversion open channel, and its height is contour with diversion open channel design lowest water level.
Preferably, the value of the angle of flare A of this diffuser is 20 °, has effectively shortened the length of diffuser, has reduced the project occupation of land area.
In order to make water conservancy diversion rectification pier effectively play shunting action, make the velocity flow profile of diversion open channel even, preferably the number of this second row's water conservancy diversion rectification pier is greater than the number of first row, the 3rd row's water conservancy diversion rectification pier.
Preferably, respectively be provided with together upright partition wall on the center line in the center line of this water inlet forebay and left and right two districts thereof, the height of this upright partition wall is contour with the design peak level of water inlet forebay.
Preferably, this upright partition wall has arc water conservancy diversion partition wall, this arc water conservancy diversion partition wall is positioned at the junction of diversion open channel and water inlet forebay, its radian is 60 °, and its radius increases from the inside to the outside successively, and the radian of this arc water conservancy diversion partition wall dwindles, and avoids water body to form counterclockwise recirculating zone in the water inlet forebay, improve the whirlpool phenomenon before water inlet forebay or the water inlet flow channel import, making into, the water volume flow rate of water forebay and water inlet flow channel import is evenly distributed.
Preferably, the rotary sieve of lateral inflow, middle water outlet is installed before the suction chamber of this circulating water pump, this rotary sieve outlet angle of flare B is 30 °, and the outlet of this rotary sieve is provided with 5 radial rhombus water conservancy diversion rectification piers, the uniformity and the stability of water inlet forebay and water inlet flow channel water body have further been improved, the harmful effect of avoiding penetrability vertical shaft whirlpool that water body fluidised form in the water inlet flow channel is caused, the water body fluidised form is steady near making the circulating water pump water sucking mouth, and assignment of traffic and velocity flow profile are even.
Preferably, the top of this rhombus water conservancy diversion rectification pier is provided with breastwork, and the design lowest water level of the bottom of this breastwork and rotary sieve is contour, and wall is a triangle form drag vortex structure behind the circulating pump suction pipe.
Technique effect of the present utility model:
The utility model compared with prior art, the utility model has effectively improved uniformity and the stability of water body in diversion open channel, water inlet forebay and water inlet flow channel water body fluidised form, the harmful effect of avoiding penetrability vertical shaft whirlpool that water body fluidised form in the runner is caused, the water body fluidised form is steady near making the circulating water pump water sucking mouth, and assignment of traffic and velocity flow profile are even.
Description of drawings
Fig. 1 is the water inlet forebay layout plan of the utility model lateral intake pump house water conservancy diversion fairing;
Fig. 2 is the recirculated water water inlet flow channel layout plan of the utility model lateral intake pump house water conservancy diversion fairing;
Fig. 3 is the recirculated water water inlet flow channel sectional drawing of the utility model lateral intake pump house water conservancy diversion fairing.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated:
As shown in Figure 1 to Figure 3.The utility model lateral intake pump house water conservancy diversion fairing, it comprises: circulating water pump 1 and water inlet forebay 2.Wherein, this circulating water pump 1 has suction chamber, and this water inlet forebay 2 has diversion open channel 4, and the end of this diversion open channel 4 is a diffuser 41, and the angle of flare A of this diffuser 41 is 20 °, makes the length of this diffuser 41 dwindle, and reduces the engineering land area; And, in this diffuser 41, being provided with the leg-of-mutton water conservancy diversion rectification pier 42 of three rows, this water conservancy diversion rectification pier 42 can be shunted the water body of diversion open channel 4, improves the water body fluidised form non-uniform phenomenon of diversion open channel 4.
Preferably, the width of this water conservancy diversion rectification pier 42 can change according to the change of the width of diversion open channel 4.Present embodiment is preferably for being provided with 4 water conservancy diversion rectification piers 42, and wherein, first row is provided with a water conservancy diversion rectification pier 42, and its width is the width of the channel of 0.12 times diversion open channel; Second row is provided with 2 water conservancy diversion rectification piers 42, and its width is respectively the width of the channel of the diversion open channel of 0.07 times and 0.09 times; The 3rd row is provided with 1 water conservancy diversion rectification pier 42, and its width is the width of the channel of 0.1 times diversion open channel.Satisfy under the construction spacer conditions at the interval between the adjacent water conservancy diversion rectification pier, the number of water conservancy diversion arrangement pier is many more, and shunting effect is good more.
Continuation is referring to shown in Figure 1.The last uprightly partition wall 21 that is provided with together of the center line in the center line of this water inlet forebay 2 and left and right two districts thereof, the design peak level of the height of this upright partition wall 21 and this water inlet forebay 2 is contour.This upright partition wall 21 has arc water conservancy diversion partition wall 22, and this arc water conservancy diversion partition wall 22 is positioned at the junction of this diversion open channel 4 and water inlet forebay 2, and the radian of this arc water conservancy diversion partition wall 22 is 60 °, and the radius of three road arc water conservancy diversion partition walls 22 increases from the inside to the outside successively.The junction of diversion open channel and water inlet forebay is 90 ° bend compared to existing technology, the radian of arc water conservancy diversion partition wall of the present utility model dwindles, avoid water body to form counterclockwise recirculating zone in water inlet forebay 2, improve the whirlpool phenomenon before water inlet forebay or the water inlet flow channel import, the water flow of water forebay 2 and water inlet flow channel import is distributed and velocity flow profile even.
Preferably, the rotary sieve 5 of lateral inflow, middle water outlet is installed before the suction chamber of this circulating water pump 1, this rotary sieve 5 outlet angle of flare B are 30 °, and the outlet of this rotary sieve 5 is provided with 5 radial rhombus water conservancy diversion rectification piers 6, the uniformity and the stability of water inlet forebay 2 and water inlet flow channel water body have further been improved, the harmful effect of avoiding penetrability vertical shaft whirlpool that water body fluidised form in the water inlet flow channel is caused, the water body fluidised form is steady near making the circulating water pump water sucking mouth, and velocity flow profile is even.
Referring to Fig. 3, the top of this rhombus water conservancy diversion rectification pier 6 is provided with breastwork 7, and the design lowest water level of the bottom of this breastwork 7 and rotary sieve 5 is contour, and wall is a triangle form drag vortex structure 8 behind circulating water pump 1 suction water pipe.
Only be specific embodiment of the utility model below, do not limit protection domain of the present utility model with this; Any replacement and the improvement done on the basis of not violating the utility model design all belong to protection domain of the present utility model.
Claims (10)
1. lateral intake pump house water conservancy diversion fairing, it includes: circulating water pump, water inlet forebay, this circulating water pump has suction chamber, this water inlet forebay has the diversion open channel, the end of this diversion open channel is a diffuser, it is characterized in that, in this diffuser, be provided with the leg-of-mutton water conservancy diversion rectification pier of three rows.
2. lateral intake pump house water conservancy diversion fairing as claimed in claim 1 is characterized in that the width of this water conservancy diversion rectification pier changes according to the width of diversion open channel, and its height is contour with diversion open channel design lowest water level.
3. lateral intake pump house water conservancy diversion fairing as claimed in claim 1 is characterized in that the value of the angle of flare A of this diffuser is 20 °.
4. lateral intake pump house water conservancy diversion fairing as claimed in claim 1 is characterized in that, the number of this second row's water conservancy diversion rectification pier is greater than the number of first row, the 3rd row's water conservancy diversion rectification pier.
5. lateral intake pump house water conservancy diversion fairing as claimed in claim 1, it is characterized in that, respectively be provided with together upright partition wall on the center line in the center line of this water inlet forebay and left and right two districts thereof, the height of this upright partition wall is contour with the design peak level of water inlet forebay.
6. lateral intake pump house water conservancy diversion fairing as claimed in claim 5, it is characterized in that this upright partition wall has arc water conservancy diversion partition wall, this arc water conservancy diversion partition wall is positioned at the junction of diversion open channel and water inlet forebay, its radian is 60 °, and its radius increases from the inside to the outside successively.
7. lateral intake pump house water conservancy diversion fairing as claimed in claim 1 is characterized in that, the rotary sieve of lateral inflow, middle water outlet is installed before the suction chamber of this circulating water pump.
8. lateral intake pump house water conservancy diversion fairing as claimed in claim 7 is characterized in that, this rotary sieve outlet angle of flare B is 30 °.
9. lateral intake pump house water conservancy diversion fairing as claimed in claim 8 is characterized in that, the outlet of this rotary sieve is provided with 5 radial rhombus water conservancy diversion rectification piers.
10. lateral intake pump house water conservancy diversion fairing as claimed in claim 9, it is characterized in that, the top of this rhombus water conservancy diversion rectification pier is provided with breastwork, and the design lowest water level of the bottom of this breastwork and rotary sieve is contour, and wall is a triangle form drag vortex structure behind the circulating pump suction pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205203993U CN201778317U (en) | 2010-09-06 | 2010-09-06 | Side inflow pump house diversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205203993U CN201778317U (en) | 2010-09-06 | 2010-09-06 | Side inflow pump house diversion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201778317U true CN201778317U (en) | 2011-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205203993U Expired - Fee Related CN201778317U (en) | 2010-09-06 | 2010-09-06 | Side inflow pump house diversion device |
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| CN (1) | CN201778317U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104790359A (en) * | 2015-04-02 | 2015-07-22 | 河海大学 | Novel self-control flow arrangement pore plate device |
| CN105604130A (en) * | 2016-01-25 | 2016-05-25 | 扬州大学 | Method for eliminating air-suction vortex at water inlet of pumping station under condition of beeline layout of gate and station |
| CN105909566A (en) * | 2016-05-17 | 2016-08-31 | 中国农业大学 | Combined type vortex control device for pump station water inlet flow field |
| CN106629923A (en) * | 2017-01-10 | 2017-05-10 | 国核电力规划设计研究院有限公司 | Trash holding device |
| CN107724342A (en) * | 2016-04-18 | 2018-02-23 | 辽宁省水利水电勘测设计研究院 | A kind of bifurcation pivot |
| CN108221846A (en) * | 2018-03-14 | 2018-06-29 | 天津市水利勘测设计院 | A kind of pressure free current is to pressure flow fluidised form conversion facility |
| CN109235546A (en) * | 2018-11-28 | 2019-01-18 | 扬州大学 | Forebay of Pumping Station adjustable plate-type column |
| CN109778772A (en) * | 2019-01-31 | 2019-05-21 | 扬州大学 | A kind of joint guiding device improving lateral intake pumping plant intake pool fluidised form |
| CN111172937A (en) * | 2020-02-23 | 2020-05-19 | 扬州大学 | T-shaped contact bottom hole structure and comprehensive rectification method thereof |
| CN111455926A (en) * | 2020-05-26 | 2020-07-28 | 扬州大学 | Device and method for improving flow state of curve slope of pump station by compounding 30-degree fan |
| CN114482194A (en) * | 2021-12-31 | 2022-05-13 | 河海大学 | Optimize rectifier structure of horizontal water intaking flow state of trapezoidal river course section open channel |
| CN116122237A (en) * | 2023-01-12 | 2023-05-16 | 珠江水利委员会珠江水利科学研究院 | Flow state adjustment system suitable for power plant circulating water runner |
-
2010
- 2010-09-06 CN CN2010205203993U patent/CN201778317U/en not_active Expired - Fee Related
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104790359A (en) * | 2015-04-02 | 2015-07-22 | 河海大学 | Novel self-control flow arrangement pore plate device |
| CN105604130A (en) * | 2016-01-25 | 2016-05-25 | 扬州大学 | Method for eliminating air-suction vortex at water inlet of pumping station under condition of beeline layout of gate and station |
| CN105604130B (en) * | 2016-01-25 | 2017-05-24 | 扬州大学 | Method for eliminating air-suction vortex at water inlet of pumping station under condition of beeline layout of gate and station |
| CN107724342B (en) * | 2016-04-18 | 2019-08-13 | 辽宁省水利水电勘测设计研究院 | A kind of bifurcation pivot |
| CN107724342A (en) * | 2016-04-18 | 2018-02-23 | 辽宁省水利水电勘测设计研究院 | A kind of bifurcation pivot |
| CN105909566A (en) * | 2016-05-17 | 2016-08-31 | 中国农业大学 | Combined type vortex control device for pump station water inlet flow field |
| CN106629923B (en) * | 2017-01-10 | 2019-09-03 | 国核电力规划设计研究院有限公司 | A kind of sewage blocking device |
| CN106629923A (en) * | 2017-01-10 | 2017-05-10 | 国核电力规划设计研究院有限公司 | Trash holding device |
| CN108221846B (en) * | 2018-03-14 | 2023-10-27 | 天津市水务规划勘测设计有限公司 | Pressureless flow-to-pressured flow state conversion facility |
| CN108221846A (en) * | 2018-03-14 | 2018-06-29 | 天津市水利勘测设计院 | A kind of pressure free current is to pressure flow fluidised form conversion facility |
| GB2579431A (en) * | 2018-11-28 | 2020-06-24 | Univ Yangzhou | Adjustable plate type column for forebay of pumping station |
| CN109235546A (en) * | 2018-11-28 | 2019-01-18 | 扬州大学 | Forebay of Pumping Station adjustable plate-type column |
| GB2579431B (en) * | 2018-11-28 | 2020-12-16 | Univ Yangzhou | Adjustable plate type column for forebay of pumping station |
| CN109778772A (en) * | 2019-01-31 | 2019-05-21 | 扬州大学 | A kind of joint guiding device improving lateral intake pumping plant intake pool fluidised form |
| CN109778772B (en) * | 2019-01-31 | 2020-07-31 | 扬州大学 | Joint guiding device for improving flow state of water inlet pool of lateral water inlet pump station |
| CN111172937A (en) * | 2020-02-23 | 2020-05-19 | 扬州大学 | T-shaped contact bottom hole structure and comprehensive rectification method thereof |
| CN111455926A (en) * | 2020-05-26 | 2020-07-28 | 扬州大学 | Device and method for improving flow state of curve slope of pump station by compounding 30-degree fan |
| CN114482194B (en) * | 2021-12-31 | 2023-05-02 | 河海大学 | Rectifier structure for optimizing transverse water taking flow state of open channel of trapezoid river section |
| CN114482194A (en) * | 2021-12-31 | 2022-05-13 | 河海大学 | Optimize rectifier structure of horizontal water intaking flow state of trapezoidal river course section open channel |
| CN116122237A (en) * | 2023-01-12 | 2023-05-16 | 珠江水利委员会珠江水利科学研究院 | Flow state adjustment system suitable for power plant circulating water runner |
| CN116122237B (en) * | 2023-01-12 | 2023-08-18 | 珠江水利委员会珠江水利科学研究院 | Flow state adjustment system suitable for power plant circulating water runner |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC Free format text: FORMER NAME: GUANGDONG ELECTRIC POWER DESIGN INSTITUTE |
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| CP03 | "change of name, title or address" |
Address after: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee after: Guangdong Electric Power Design Institute of CEEC Address before: 510600 No. 846 Dongfeng East Road, Guangzhou, Guangdong, Yuexiu District Patentee before: Guangdong Electric Power Design Institute |
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| C56 | Change in the name or address of the patentee |
Owner name: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC Free format text: FORMER NAME: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE |
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| CP01 | Change in the name or title of a patent holder |
Address after: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee after: Company limited of China Energy Engineering Group Guangdong Electric Power Design Institute Address before: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee before: Guangdong Electric Power Design Institute of CEEC |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20170906 |
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| CF01 | Termination of patent right due to non-payment of annual fee |