CN201704726U - Novel box culvert-type two-way water inflow passage - Google Patents
Novel box culvert-type two-way water inflow passage Download PDFInfo
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- CN201704726U CN201704726U CN2010201077578U CN201020107757U CN201704726U CN 201704726 U CN201704726 U CN 201704726U CN 2010201077578 U CN2010201077578 U CN 2010201077578U CN 201020107757 U CN201020107757 U CN 201020107757U CN 201704726 U CN201704726 U CN 201704726U
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- box culvert
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- water pump
- pump
- guide cone
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Abstract
A novel box culvert-type two-way water inflow passage belongs to the technical field of hydraulic engineering and comprises a box culvert, a water pump, a water sucking flare opening, a water guide cone, an anti-vortex partition plate, control gates and so on. The box culvert has a rectangular cross section, the control gates are arranged at the streamlined inlet cross sections on the two sides of the box culvert respectively, the water pump is arranged in the middle of the box culvert, the box culvert is symmetric with the impellor center line of the water pump, the box culvert and the water pump form a shape of an inverted tee joint, and the water guide cone and the anti-vortex partition plate are arranged right below the water sucking flare opening of the water pump. The novel box culvert-type two-way water inflow passage has simple structure, regular shape and easy design and construction. The water guide cone eliminates the static water zone below the water sucking flare opening, and the anti-vortex partition plate obstructs vortex, so as to effectively prevent generation of underwater vortex strips, improve the inflow conditions of the water pump, increase the flow uniformity at the inlet cross section of the water pump, and reduce the drift angle of pump-inlet flow. The novel box culvert-type two-way water inflow passage can achieve pumping irrigation, pumping drainage, self-irrigation, self-drainage and other multiple functions, and improves the efficiency of the water pump and the utilization efficiency of a pump station.
Description
Technical field
The utility model relates to the structure of pumping plant water inlet flow channel, belongs to hydraulic engineering and water supply and draining field of engineering technology.
Background technology
Water inlet flow channel is the hydraulic structure for big-and-middle-sized pump sump, its objective is current are turned to better, and reduces hydraulic loss as far as possible, for water pump provides good water inlet condition, gives full play to pump performance.In Hydraulic and Hydro-Power Engineering, water supply and draining engineering field, cities and towns, water pump is the most frequently used dynamic power machine, the quality of its water inlet flow channel design, directly have influence on the water inlet condition of water pump, have influence on the normal performance of water pump energy characteristics and cavitation performance, have influence on safe, the stable and efficient operation of water pump assembly, have influence on economic benefit, project benefit and social benefit that pumping plant is built.Poorly designed water inlet flow channel, the inner whirlpool band that easily produces causes unit vibration and noise, reduces water pump assembly efficient, injures pumping station operation safety.In actual pump station engineering, may require certain pumping plant can irrigate (water supply), can drain flooded fields again (draining) can also realize that two-way water inlet flow channel provides good solution for satisfying these demands from irritating and arranging certainly when water levels of upstream and downstream makes up permission.Therefore, convenient design and construction, construction investment is economized, and can obtain that fluidised form is smooth-going, water absorbing properties is good, the two-way water inlet flow channel in the anti-whirlpool, whirlpool that disappears, and is the problem that pumping plant designer and engineers and technicians endeavour to solve.
The utility model content
The purpose of this utility model is exactly to be convenient to design and construction in order to provide a kind of, fluidised form is smooth-going, can improve water pump water inlet condition, improves pump installation efficient, satisfies to irrigate, water drainage, irritate and arrange certainly the two-way water inlet flow channel of novel box culvert formula of multiple function certainly.
The purpose of this utility model is to realize like this, the two-way water inlet flow channel of novel box culvert formula, comprise the two-way water inlet box culvert of streamlined import (abbreviation box culvert), water pump, suction horn mouth, water guide cone, anti-whirlpool dividing plate and regulating gate, the section configuration that it is characterized in that box culvert is a rectangle, the streamlined admission section in both sides is installed regulating gate respectively, water pump is arranged on the middle part of box culvert, box culvert is with the impeller center line symmetry of water pump, box culvert and water pump constitute and are inverse-T-shaped three-way shape, water guide cone and the dividing plate setting of anti-whirlpool be installed in pump sump bell-mouthed under.
Described water guide cone base diameter D
1With suction horn mouth inlet diameter D
0Equate that the water guide cone bottom is tangent with the box culvert base plate, water guide cone upper diameter d
1Impeller hub diameter d with water pump
0Equate that the water guide cone toroidal function is 1/4 ellipse, and is tangent with the extended line of impeller hub.
Described anti-whirlpool dividing plate both sides head and top all are streamlined, highly are 0.5～0.7 times of suction horn mouth inlet diameter D
0, thickness is 0.1～0.2m.
The section width of described box culvert is 2.2～2.5 times of suction horn mouth inlet diameter D
0, the suction horn mouth mouth of pipe is 0.5～0.7 times of suction horn mouth inlet diameter D to the distance of box culvert base plate
0
When regulating gate and water pump cooperation, can open left side or right side regulating gate according to irrigating or water drainage (supplying water or draining) requirement, current enter the suction horn mouth from left side box culvert or right side box culvert, realize water pump irrigation by pumping or water drainage (supplying water or draining); When the pumping plant water levels of upstream and downstream makes up permission, open left side and right side regulating gate simultaneously, realize from filling and from row's (supplying water or draining) function.
The utility model is simple in structure, regular shape, and design and construction are easily; Water guide cone has been eliminated slough, horn mouth below, anti-whirlpool dividing plate has cut off the issuable vortex in horn mouth below, scope and intensity that vortex produces have been controlled, can prevent the generation of whirlpool band under water effectively, improve water pump water inlet condition, improve water pump admission section current axial flow velocity distribution consistency degree, reduce into pump current drift angle, give full play to the energy characteristics and the cavitation corrosion performance of water pump, realize irrigating by lifting water to a higher level with a water pump, etc., the row of carrying, irritate certainly, multiple function such as row certainly, raising pump installation efficient and pumping plant utilization rate.
Description of drawings
Fig. 1 is the utility model plane structure schematic diagram;
Fig. 2 is an A-A generalized section among Fig. 1.
Among the figure: 1 left side regulating gate, 2 left side box culverts, 3 box culvert base plates, 4 anti-whirlpool dividing plates, 5 water guide cones, 6 suction horn mouths, 7 impeller hubs, 8 impellers, 9 stators, 10 right side box culverts, 11 right side regulating gates, 12 streamlined imports.
The specific embodiment
As shown in Figure 1 and Figure 2, the two-way water inlet flow channel of novel box culvert formula, by formations such as the two-way water inlet box culvert of streamlined import (abbreviation box culvert), water pump, suction horn mouth 6, water guide cone 5, anti-whirlpool dividing plate 4 and regulating gates, the section configuration of box culvert is a rectangle, import is streamlined, water pump is arranged on the middle part of box culvert, water pump is divided into left side box culvert 2 and right side box culvert 10 with the two-way water inlet box culvert of streamlined import, left side box culvert 2 and right side box culvert 10 are with the impeller 8 center line symmetries of water pump, and box culvert and water pump formation are inverse-T-shaped three-way shape.Left side regulating gate 1 and right side regulating gate 11 are installed respectively on streamlined import 12 sections in the box culvert left and right sides, and water guide cone 5 and anti-whirlpool dividing plate 4 are installed on the box culvert base plate 3 under the pump sump horn mouth 6.Water guide cone 5 base diameter D
1Suction horn mouth 6 diameter D with water pump
0Equate that the water guide cone bottom is tangent with the box culvert base plate, water guide cone upper diameter d
1Impeller hub 7 diameter d with water pump
0Equate that the water guide cone toroidal function is 1/4 ellipse, and is tangent with the extended line of impeller hub.Anti-whirlpool dividing plate both sides head and top all are streamlined, highly are 0.5～0.7 times of suction horn mouth inlet diameter D
0, thickness is 0.1～0.2m.The section width of box culvert is 2.2～2.5 times of suction horn mouth inlet diameter D
0, the import water velocity is controlled at 0.8～1.0m/s.The suction horn mouth mouth of pipe is 0.5～0.7 times of suction horn mouth inlet diameter D to the distance of box culvert base plate
0By the cooperation of regulating gate and water pump, realize irrigating by lifting water to a higher level with a water pump, etc. (waters supply), row's of putting forward (draining), filling certainly, multiple function such as row certainly.
Claims (4)
1. two-way water inlet flow channel of novel box culvert formula, comprise the two-way water inlet box culvert of streamlined import, water pump, suction horn mouth, water guide cone, anti-whirlpool dividing plate and regulating gate, the section configuration that it is characterized in that the two-way water inlet box culvert of streamlined import is a rectangle, the streamlined admission section in both sides is installed regulating gate respectively, water pump is arranged on the middle part of the two-way water inlet box culvert of streamlined import, box culvert is with the impeller center line symmetry of water pump, box culvert and water pump constitute and are inverse-T-shaped three-way shape, water guide cone and anti-whirlpool dividing plate be installed in pump sump bell-mouthed under.
2. the two-way water inlet flow channel of novel box culvert formula according to claim 1 is characterized in that described water guide cone base diameter D
1With suction horn mouth inlet diameter D
0Equate that the water guide cone bottom is tangent with the box culvert base plate, water guide cone upper diameter d
1Impeller hub diameter d with water pump
0Equate that the water guide cone toroidal function is 1/4 ellipse, and is tangent with the extended line of impeller hub.
3. the two-way water inlet flow channel of novel box culvert formula according to claim 1 is characterized in that described anti-whirlpool dividing plate both sides head and top all are streamlined, highly is 0.5～0.7 times of suction horn mouth inlet diameter D
0, thickness is 0.1～0.2m.
4. the two-way water inlet flow channel of novel box culvert formula according to claim 1, the section width that it is characterized in that the two-way water inlet box culvert of described streamlined import are 2.2～2.5 times of suction horn mouth inlet diameter D
0, the suction horn mouth mouth of pipe is 0.5～0.7 times of suction horn mouth inlet diameter D to the distance of box culvert base plate
0
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201077578U CN201704726U (en) | 2010-01-28 | 2010-01-28 | Novel box culvert-type two-way water inflow passage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201077578U CN201704726U (en) | 2010-01-28 | 2010-01-28 | Novel box culvert-type two-way water inflow passage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201704726U true CN201704726U (en) | 2011-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201077578U Expired - Fee Related CN201704726U (en) | 2010-01-28 | 2010-01-28 | Novel box culvert-type two-way water inflow passage |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373387A (en) * | 2014-10-27 | 2015-02-25 | 扬州大学 | Bell inlet passage excellent in hydraulic performance and application method thereof |
| CN104500455A (en) * | 2014-12-15 | 2015-04-08 | 樊建苗 | Double-layer bidirectional flow passage system of vertical submersible axial-flow pump |
| CN104818699A (en) * | 2015-04-01 | 2015-08-05 | 扬州大学 | 1/4 elliptic cone conical table eddy eliminating device and method for closed intake pool |
| TWI616625B (en) * | 2016-08-09 | 2018-03-01 | Water storage tank drainage structure with water flow destruction function | |
| CN108757571A (en) * | 2018-05-25 | 2018-11-06 | 江苏大学 | A kind of square chest type two-way water inflow passage design method |
| CN109235626A (en) * | 2018-10-31 | 2019-01-18 | 扬州大学 | Special-shaped thin board type eliminates reflux unit in a kind of box type bidirectional runner |
| CN110594201A (en) * | 2019-10-28 | 2019-12-20 | 江苏省水利工程科技咨询股份有限公司 | Box culvert type bidirectional flow channel internal flow line type vortex eliminating structure and vortex eliminating method thereof |
-
2010
- 2010-01-28 CN CN2010201077578U patent/CN201704726U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373387A (en) * | 2014-10-27 | 2015-02-25 | 扬州大学 | Bell inlet passage excellent in hydraulic performance and application method thereof |
| CN104373387B (en) * | 2014-10-27 | 2015-08-19 | 扬州大学 | A kind of bell-shaped suction box of hydraulic performance excellence and application process thereof |
| CN104500455A (en) * | 2014-12-15 | 2015-04-08 | 樊建苗 | Double-layer bidirectional flow passage system of vertical submersible axial-flow pump |
| CN104818699A (en) * | 2015-04-01 | 2015-08-05 | 扬州大学 | 1/4 elliptic cone conical table eddy eliminating device and method for closed intake pool |
| TWI616625B (en) * | 2016-08-09 | 2018-03-01 | Water storage tank drainage structure with water flow destruction function | |
| CN108757571A (en) * | 2018-05-25 | 2018-11-06 | 江苏大学 | A kind of square chest type two-way water inflow passage design method |
| CN109235626A (en) * | 2018-10-31 | 2019-01-18 | 扬州大学 | Special-shaped thin board type eliminates reflux unit in a kind of box type bidirectional runner |
| CN110594201A (en) * | 2019-10-28 | 2019-12-20 | 江苏省水利工程科技咨询股份有限公司 | Box culvert type bidirectional flow channel internal flow line type vortex eliminating structure and vortex eliminating method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20140128 |