CN204476865U - The serial inclined outlet passage of hydraulic performance excellence - Google Patents
The serial inclined outlet passage of hydraulic performance excellence Download PDFInfo
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- CN204476865U CN204476865U CN201520043127.1U CN201520043127U CN204476865U CN 204476865 U CN204476865 U CN 204476865U CN 201520043127 U CN201520043127 U CN 201520043127U CN 204476865 U CN204476865 U CN 204476865U
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Abstract
The utility model discloses the serial inclined outlet passage of hydraulic performance excellence, belong to hydraulic engineering pumping plant technical field.The elevation (containing cross section place line) of the matching used 6 kinds of inclined outlet passages of inclined shaft extension pump being 15 °, 20 °, 25 °, 30 °, 35 ° and 40 °, plane outspread drawing (containing cross section place line) and profile data table are provided with inclination angle; According to the design net lift intending application pumping plant of the present utility model, determine corresponding inclined outlet passage; Data in determined inclined outlet passage data sheet are multiplied by the water pump vane diameter intending application pumping plant of the present utility model to convert, the size of this pumping plant inclined outlet passage can be obtained.Runner flow direction-changing after conversion in order, diffusion is even, loss of head is little, hydraulic performance is excellent.The utility model is practical, application is convenient, to the designing quality ensureing inclined outlet passage, guarantee the safe, stable of pumping plant and Effec-tive Function significant.
Description
Technical field
The utility model belongs to hydraulic engineering pumping plant technical field, is specifically related to the serial inclined outlet passage of hydraulic performance excellence, is mainly used in the Hydraulic Design quality ensureing big-and-middle-sized inclined shaft extension pump-unit outlet passage.
Background technique
The inclined shaft extension pump-unit that pump shaft tilts to install is applied to the large pumping station of net lift for (1 ~ 4) m, the pump shaft inclination angle with respect to the horizontal plane of inclined shaft extension pump-unit increases with the increase of pumping plant net lift, and pump shaft inclination angle generally should not be greater than 40 °.Series inclined outlet passage and inclined shaft extension pump support the use, and its effect guides current turning in order in the process of water outlet pool from water pump guide vane body outlet flow and spreading, to reduce loss of head and the recycle-water energy of flow of outlet passage as much as possible.The inclined outlet passage of design hydraulic performance excellence is the necessary condition ensureing pumping plant safety, stable and Effec-tive Function.Inclined outlet passage is meet the requirement that pump shaft passes above runner, and need bend as serpentine, strongly affecting by centrifugal force, the fluidised form in runner is very complicated.Traditional outlet passage Hydraulic Design Method adopts " mean velocity method " based on one-dimensional theory, very large with Three dimensional Turbulent Flow difference actual in inclined outlet passage, designed outlet passage can not guide current to turn in order and spread gently, even in runner, cause vortex, cause water movement instability and produce larger loss of head, badly influencing the safe, stable of pumping plant and Effec-tive Function.
Model utility content
The purpose of this utility model is exactly the defect for above-mentioned conventional method, adopt and study based on the Optimum Hydraulic Design method of Three dimensional Turbulent Flow numerical simulation, provide the serial inclined outlet passage of hydraulic performance excellence, excellent in order to guarantee the hydraulic performance of serial inclined outlet passage, realize the target of pumping plant safety, stable and Effec-tive Function.
The purpose of this utility model is achieved through the following technical solutions, the serial inclined outlet passage of hydraulic performance excellence, the pump shaft inclination angle of inclined shaft extension pump-unit is divided into 15 °, 20 °, 25 °, 30 °, 35 ° and 40 ° etc. 6 grades, also be correspondingly divided into 6 kinds with the matching used inclined outlet passage of inclined shaft extension pump at these 6 grades of inclination angles, form serial inclined outlet passage; In this series, each inclined outlet passage is by the bending section arranged along water (flow) direction and straightway composition; The section configuration of bending section is faded to the rectangle of outlet by the circle of import, the section configuration of straightway is rectangle; Middle dividing pier is provided with in straightway; The elevation (containing bending section cross section place line) of described inclined outlet passage, plane outspread drawing (containing bending section cross section place line) and bending section profile data table are provided;
The relative value that it is reference value that the size of described inclined outlet passage all adopts with water pump vane diameter D represents; The height H of described 6 kinds of inclined outlet passage bending sections
1be respectively 1.048D, 0.869D, 0.688D, 0.513D, 0.363D and 0.241D, the length L of bending section
1be respectively 2.387D, 2.408D, 2.434D, 2.467D, 2.504D and 2.546D;
The length L of described 6 kinds of inclined outlet passage straightways
2, runner exit section width B
2and height H
2size equal, its value is respectively: L
2=3.32D, B
2=3.24D, H
2=1.55D;
The length L of dividing pier in described 6 kinds of inclined outlet passages
g, thickness B
g, head radius of arc R
g1, afterbody radius of arc R
g2size equal, its value is respectively: L
g=2.17D, thickness B
g=0.17D+0.2m, head radius of arc R
g1=3D, afterbody radius of arc R
g2=0.3D;
Further, provide described serial inclined outlet passage bending section cross section place figure and profile data table, the data in described data sheet comprise bending section longitudinal section upper sideline coordinate (X
1, Y
1), longitudinal section lower sideline coordinate (X
2, Y
2), section height H
w, section width B
wthe transitional radius R of rectangle is faded to by circle with section configuration
w.
The application process of the serial inclined outlet passage of hydraulic performance excellence, comprises the following steps:
(1) the pump shaft inclination angle of inclined shaft extension pump-unit is divided into 15 °, 20 °, 25 °, 30 °, 35 ° and 40 ° etc. 6 grades, also be correspondingly divided into 6 kinds with the matching used inclined outlet passage of inclined shaft extension pump at these 6 grades of inclination angles, form serial inclined outlet passage; In this series, each inclined outlet passage is by the bending section arranged along water (flow) direction and straightway composition; The section configuration of bending section is faded to the rectangle of outlet by the circle of import, the section configuration of straightway is rectangle; Middle dividing pier is provided with in straightway; The elevation (containing bending section cross section place line) of described serial inclined outlet passage, plane outspread drawing (containing bending section cross section place line) and bending section profile data table are provided; The relative value that it is reference value that the size of described serial inclined outlet passage all adopts with water pump vane diameter D represents; The height H of described 6 kinds of inclined outlet passage bending sections
1be respectively 1.048D, 0.869D, 0.688D, 0.513D, 0.363D and 0.241D, the length L of described bending section
1be respectively 2.387D, 2.408D, 2.434D, 2.467D, 2.504D and 2.546D; The length L of described 6 kinds of inclined outlet passage straightways
2, runner exit section width B
2and height H
2size equal, its value is respectively: L
2=3.32D, B
2=3.24D, H
2=1.55D; The length L of dividing pier in described 6 kinds of inclined outlet passages
g, thickness B
g, head radius of arc R
g1, afterbody radius of arc R
g2size equal, its value is respectively: L
g=2.17D, thickness B
g=0.17D+0.2m, head radius of arc R
g1=3D, afterbody radius of arc R
g2=0.3D;
Further, provide cross section place figure and the profile data table of described serial inclined outlet passage bending section, the data in described data sheet comprise bending section longitudinal section upper sideline coordinate (X
1, Y
1), longitudinal section lower sideline coordinate (X
2, Y
2), section height H
w, section width B
wthe transitional radius R of rectangle is faded to by circle with section configuration
w;
(2) according to the design net lift H intending application pumping plant of the present utility model, determine by table 1 the pump shaft angle of inclination beta that inclined shaft extension pump-unit is corresponding;
The sequence number of table 1 serial inclined outlet passage and corresponding Design of Pump Station net lift and pump shaft inclination angle
(3) according to determined pump shaft angle of inclination beta, in serial inclined outlet passage of the present utility model, the inclined outlet passage of corresponding sequence number is found;
(4) the water pump vane diameter D relative value of each physical dimension of inclined outlet passage of described corresponding sequence number being multiplied by the employing of described pumping plant plan converts, and just obtains the actual required size of described pumping plant inclined outlet passage bending section and straightway;
(5) the length L of described serial inclined outlet passage straightway
2for 3.32D, according to the needs that described pump station structure is arranged, to the L of the inclined outlet passage after described conversion
2adjust, the length L of dividing pier in simultaneously correspondingly adjusting
g;
(6) geometric parameter of inclined outlet passage according to described conversion and after adjustment, draws required inclined outlet passage single line drawing in mapping software AUTO CAD.
Compared with prior art, the utility model has following beneficial effect:
The first, serial inclined outlet passage hydraulic performance of the present utility model is excellent, and using method is simple, is convenient to engineers and technicians and adopts; The quality of inclined shaft extension pump-unit inclined outlet passage the Hydraulic Design can be ensured, for guarantee the safe, stable of pumping plant and Effec-tive Function significant.
The second, the serial inclined outlet passage that the utility model provides is made up of the bending section arranged along water (flow) direction and straightway, and described bending section turns to as serpentine for guiding current, makes uniform fluid flow spread simultaneously; Described straightway does diffusion further for guiding current in facade direction and in-plane; In arranging in straightway, dividing pier is for eliminating the residue circular rector of current in outlet passage; The serial inclined outlet passage flow direction-changing that application the utility model obtains is orderly, diffusion is even, and hydraulic performance is excellent.
3rd, according to the statistics to built pumping plant inclined shaft extension pump-unit outlet passage key dimension, the relative value (with water pump vane diameter D for reference value) of its length, width and height relatively.The all sizes of runner all represent by relative value, and for the large pumping station adopting inclined shaft extension pump-unit, the water pump vane diameter D these relative values being multiplied by the employing of pumping plant plan can obtain required channel size; The size of runner straightway can adjust according to the actual demand of pumping plant.
4th, the serial inclined outlet passage hydraulic performance that the utility model provides is excellent: 1. according to the application request of inclined outlet passage, through the research of special Optimum Hydraulic Design, obtains serial inclined outlet passage; 2. the main hydraulic performance index of described serial inclined outlet passage: runner loss of head Δ h≤0.35m during design discharge.
Accompanying drawing explanation
Fig. 1 (a) is the inclined outlet passage facade single line drawing that the utility model provides;
Fig. 1 (b) is the inclined outlet passage planar development single line drawing that the utility model provides;
Fig. 1 (c) is the A in Fig. 1 (a) and Fig. 1 (b)
i-A
isectional view;
Fig. 2 (a) is the 1st kind of inclined outlet passage elevation (containing bending section cross section place line) that the utility model provides;
Fig. 2 (b) is the 1st kind of inclined outlet passage plane outspread drawing (containing bending section cross section place line) that the utility model provides;
Fig. 3 (a) is the 2nd kind of inclined outlet passage elevation (containing bending section cross section place line) that the utility model provides;
Fig. 3 (b) is the 2nd kind of inclined outlet passage plane outspread drawing (containing bending section cross section place line) that the utility model provides;
Fig. 4 (a) is the 3rd kind of inclined outlet passage elevation (containing bending section cross section place line) that the utility model provides;
Fig. 4 (b) is the 3rd kind of inclined outlet passage plane outspread drawing (containing bending section cross section place line) that the utility model provides;
Fig. 5 (a) is the 4th kind of inclined outlet passage elevation (containing bending section cross section place line) that the utility model provides;
Fig. 5 (b) is the 4th kind of inclined outlet passage plane outspread drawing (containing bending section cross section place line) that the utility model provides;
Fig. 6 (a) is the 5th kind of inclined outlet passage elevation (containing bending section cross section place line) that the utility model provides;
Fig. 6 (b) is the 5th kind of inclined outlet passage plane outspread drawing (containing bending section cross section place line) that the utility model provides;
Fig. 7 (a) is the 6th kind of inclined outlet passage elevation (containing bending section cross section place line) that the utility model provides;
Fig. 7 (b) is the 6th kind of inclined outlet passage plane outspread drawing (containing bending section cross section place line) that the utility model provides;
Fig. 8 (a) is the elevational schematic view of the inclined outlet passage length of straigh line adjustment of applying pumping plant of the present utility model;
Fig. 8 (b) is the floor map of the inclined outlet passage length of straigh line adjustment of applying pumping plant of the present utility model;
In figure: 1 bending section, 2 straightways, dividing pier in 3,4 longitudinal section upper sidelines, 5 longitudinal section lower sidelines, 6 width sidelines, 7 runner section configurations fade to the transition circle deferent line of rectangle by circle, 11 the 1st kinds of inclined outlet passage bending sections, 12 the 2nd kinds of inclined outlet passage bending sections, 13 the 3rd kinds of inclined outlet passage bending sections, 14 the 4th kinds of inclined outlet passage bending sections, 15 the 5th kinds of inclined outlet passage bending sections, 16 the 6th kinds of inclined outlet passage bending sections.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
The purpose of this utility model: the pump shaft inclination angle of inclined shaft extension pump-unit is divided into 15 °, 20 °, 25 °, 30 °, 35 ° and 40 ° etc. 6 grades by (1), provides and these 6 grades of matching used serial inclined outlet passages of inclination angle inclined shaft extension pump; (2) special Optimum Hydraulic Design research is carried out to described serial inclined outlet passage, make its hydraulic performance reach excellent and be convenient to application; (3) described inclined outlet passage is divided into the bending section 1 and straightway 2 that arrange along water (flow) direction, there is provided cross section place and the profile data of bending section 1, all physical dimensions of runner all represent (with water pump vane diameter D for reference value) with relative value; (4) the inclined outlet passage of corresponding sequence number is selected in Table 1 according to the design net lift intending application pumping plant of the present utility model; (5) the water pump vane diameter D relative value of each physical dimension of inclined outlet passage of described corresponding sequence number being multiplied by the employing of described pumping plant plan carries out the size needed for this pumping plant inclined outlet passage reality that converts to obtain; (6) size of straightway 2 can adjust within the specific limits according to the actual demand of this pumping plant.
(1) the serial inclined outlet passage hydraulic performance provided is excellent;
1. according to the application request of serial inclined outlet passage, obtain through the research of special Optimum Hydraulic Design;
2. the main hydraulic performance index of described serial inclined outlet passage: runner loss of head Δ h≤0.35m during design discharge.
(2) the serial inclined outlet passage geometrical body presentation provided;
1. inclined outlet passage is divided into the bending section 1 and straightway 2 that arrange along water (flow) direction;
2. described bending section 1 is in serpentine, the needs stretching out outlet passage in order to adapt to pump shaft are arranged, this section is while turning to, its width progressively strengthens, its section configuration fades to rectangle by circle simultaneously, width sideline 6 originates in the admission section of bending section 1, ends at the Outlet Section of straightway 2, and section configuration is originated in the admission section of bending section 1 by rectangle gradual change conglobate transition circle deferent line 7, ended at the Outlet Section of bending section 1; By the impact of centrifugal force, the flow-shape of this section is complicated, and its Hydraulic Design must meet the requirement that current turn in order and evenly spread; For accurately expressing the three-dimensional body of this section, provide this section of cross section place figure and profile data table, data sheet comprises the coordinate (X of runner bending section 1 longitudinal section upper sideline 4
1, Y
1), the coordinate (X of longitudinal section lower sideline 5
2, Y
2), section height H
w, section width B
wwith section transitional radius R
w;
3. after described straightway 2 is positioned at bending section 1, be the changeover portion between bending section 1 and pumping plant water outlet pool, its effect guides current to do diffusion further in facade direction and in-plane, and the geometric parameter of this section comprises runner length of straigh line L
2, Outlet Section width B
2with Outlet Section height H
2;
4. dividing pier 3 in arranging in described straightway 2, the residue circular rector of current in outlet passage is mainly eliminated in its effect, also meets the needs that flow passage structure is arranged simultaneously; Described middle dividing pier 3 is divided into 3 parts such as head arc section, middle part straight section and afterbody arc section, and its geometric parameter comprises middle dividing pier length L
g, thickness B
g, head radius of arc R
g1with afterbody radius of arc R
g2;
5. provided serial inclined outlet passage is divided into 6 kinds, wherein: the pump shaft inclination angle corresponding to the 1st kind is 15 °, the profile data of bending section 11 lists in table 2, and the cross section place of runner single line drawing and bending section 11 is shown in Fig. 2 (a) and Fig. 2 (b); Pump shaft inclination angle corresponding to 2nd kind is 20 °, and the profile data of bending section 12 lists in table 3, and the cross section place of runner single line drawing and bending section 12 is shown in Fig. 3 (a) and Fig. 3 (b); Pump shaft inclination angle corresponding to 3rd kind is 25 °, and the profile data of bending section 13 lists in table 4, and the cross section place of runner single line drawing and bending section 13 is shown in Fig. 4 (a) and Fig. 4 (b); Pump shaft inclination angle corresponding to 4th kind is 30 °, and the profile data of bending section 14 lists in table 5, and the cross section place of runner single line drawing and bending section 14 is shown in Fig. 5 (a) and Fig. 5 (b); Pump shaft inclination angle corresponding to 5th kind is 35 °, and the profile data of bending section 15 lists in table 6, and the cross section place of runner single line drawing and bending section 15 is shown in Fig. 6 (a) and Fig. 6 (b); Pump shaft inclination angle corresponding to 6th kind is 40 °, and the profile data of bending section 16 lists in table 7, and the cross section place of runner single line drawing and bending section 16 is shown in Fig. 7 (a) and Fig. 7 (b); The relative value that it is reference value that runner profile data in table 2 ~ table 7 adopts with water pump vane diameter D represents.
Table 2 respective pump axial rake is the inclined outlet passage bending section profile data table of 15 °
Table 3 respective pump axial rake is the inclined outlet passage bending section profile data table of 20 °
Table 4 respective pump axial rake is the inclined outlet passage bending section profile data table of 25 °
Table 5 respective pump axial rake is the inclined outlet passage bending section profile data table of 30 °
Table 6 respective pump axial rake is the inclined outlet passage bending section profile data table of 35 °
Table 7 respective pump axial rake is the inclined outlet passage bending section profile data table of 40 °
(3) the serial inclined outlet passage application process being convenient to the hydraulic performance excellence promoted is set up;
1. in described serial inclined outlet passage, the inclined outlet passage of corresponding sequence number is selected according to the design net lift intending application pumping plant of the present utility model;
2. inclined outlet passage each physical dimension parameter relative value of described corresponding sequence number is multiplied by the water pump vane diameter D that described pumping plant intends adopting to convert, must the required size of this pumping plant outlet passage;
The length L of the inclined outlet passage straightway 2 3. after described conversion
2lengthen on the basis of existing size according to the needs that described pump station structure is arranged or shorten;
4. the geometric parameter of inclined outlet passage according to described conversion and after adjustment, draws required inclined outlet passage single line drawing in mapping software AUTOCAD.
Embodiment
Certain large-scale low-lift-head pumping station inclined shaft extension pump-unit, this station design net lift H is 2.4m, and water pump vane diameter D is 3.5m, and outlet passage length of straigh line is 13.5m.
(1) the serial inclined outlet passage of hydraulic performance excellence that provides of the utility model is as follows:
With water pump vane diameter D for reference value.The height H of 6 kinds of inclined outlet passage bending sections 1 corresponding with 6 grades of inclination angles such as 15 °, 20 °, 25 °, 30 °, 35 ° and 40 ° in the serial inclined outlet passage that the utility model provides
1be respectively 1.048D, 0.869D, 0.688D, 0.513D, 0.363D and 0.241D, the length L of bending section 1
1be respectively 2.387D, 2.408D, 2.434D, 2.467D, 2.504D and 2.546D; The length L of described 6 kinds of inclined outlet passage straightways 2
2, runner exit section width B
2and height H
2size equal, its value is respectively: L
2=3.32D, B
2=3.24D, H
2=1.55D; The length L of dividing pier 3 in described 6 kinds of inclined outlet passages
g, thickness B
g, head radius of arc R
g1, afterbody radius of arc R
g2size equal, its value is respectively: L
g=2.17D, thickness B
g=0.17D+0.2m, head radius of arc R
g1=3D, afterbody radius of arc R
g2=0.3D; The profile data of described 6 kinds of inclined outlet passages lists in table 2, table 3, table 4, table 5, table 6 and table 7 respectively, and the cross section place of described 6 kinds of inclined outlet passages is shown in Fig. 2 (a) and Fig. 2 (b), Fig. 3 (a) and Fig. 3 (b), Fig. 4 (a) and Fig. 4 (b), Fig. 5 (a) and Fig. 5 (b), Fig. 6 (a) and Fig. 6 (b), Fig. 7 (a) and Fig. 7 (b); The relative value that it is reference value that runner profile data in table 2 ~ table 7 adopts with water pump vane diameter D represents.
(2) application process that provides of the utility model is as follows:
1. the design net lift H applying pumping plant of the present utility model is 2.4m, according to table 1 select corresponding sequence number be 3 inclined outlet passage, sequence number is that the profile data of the oblique inlet passage of 3 is in table 4;
2. the water pump vane diameter D applying pumping plant of the present utility model is 3.5m, each physical dimension relative value in table 4 is multiplied by 3.5m convert, can the profile data of this pumping plant inclined outlet passage bending section, (dimensional units in table is m) to list in table 8;
The inclined outlet passage bending section profile data table of pumping plant of the present utility model applied by table 8
3. the length L of the outlet passage straightway 2 of pumping plant of the present utility model is applied
2' be 13.5m, and the 2. step obtain the length L of straightway 2 after converting
2for 11.62m, for this reason, by L
2lengthen 1.88m, the mode of lengthening is shown in Fig. 8; At lengthening L
2while the size of dividing pier 3 in corresponding adjustment; In figure, the straightway 2 after change and middle dividing pier 3 represented by dashed line, their length uses L respectively
2' and L
g' represent;
4. according to the 2. step convert and the geometric parameter of the inclined outlet passage 3. after step adjustment, in mapping software AUTOCAD, draw the inclined outlet passage single line drawing applied needed for pumping plant of the present utility model.
Claims (7)
1. the serial inclined outlet passage of hydraulic performance excellence, is characterized in that, is the matching used 6 kinds of inclined outlet passages of inclined shaft extension pump of 15 °, 20 °, 25 °, 30 °, 35 ° and 40 °, forms serial inclined outlet passage with pump shaft inclination angle; Each inclined outlet passage in this serial inclined outlet passage includes the bending section (1) and straightway (2) that arrange along water (flow) direction, is provided with middle dividing pier (3) in straightway (2);
The relative value that it is reference value that the size of described serial inclined outlet passage all adopts with water pump vane diameter D represents,
The bending section (1) of described serial inclined outlet passage is in serpentine, and the section configuration of bending section is faded to the rectangle of outlet by the circle of import, the height H of described 6 kinds of inclined outlet passage bending sections
1be respectively 1.048D, 0.869D, 0.688D, 0.513D, 0.363D and 0.241D, the length L of described 6 kinds of inclined outlet passage bending sections
1be respectively 2.387D, 2.408D, 2.434D, 2.467D, 2.504D and 2.546D;
After described straightway (2) is positioned at described bending section (1), straightway (2) is the changeover portion between bending section (1) and pumping plant water outlet pool, straightway (2) effect guides current to do diffusion further in facade direction and in-plane, the section configuration of straightway (2) is rectangle, the length of straigh line L of described 6 kinds of inclined outlet passages
2, Outlet Section width B
2and height H
2size equal, its value is respectively: L
2=3.32D, B
2=3.24D, H
2=1.55D;
The length L of dividing pier (3) in described 6 kinds of inclined outlet passages
g, thickness B
g, head radius of arc R
g1, afterbody radius of arc R
g2size equal, its value is respectively: L
g=2.17D, thickness B
g=0.17D+0.2m, head radius of arc R
g1=3D, afterbody radius of arc R
g2=0.3D.
2. the serial inclined outlet passage of hydraulic performance excellence according to claim 1, it is characterized in that, described respective pump axial rake is that the profile data of the inclined shaft extension pump matching used inclined outlet passage bending section (11) of 15 ° comprises: runner bending section longitudinal section upper sideline (4) coordinate (X
1, Y
1), longitudinal section lower sideline (5) coordinate (X
2, Y
2), section height H
w, section width B
wcircular transitional radius R is faded to by rectangle with section configuration
w, respective pump axial rake be the inclined outlet passage bending section profile data of 15 ° in table 1, the relative value that in table 1, data are is reference value with water pump vane diameter D,
Table 1 respective pump axial rake is the inclined outlet passage bending section profile data table of 15 °
3. the serial inclined outlet passage of hydraulic performance excellence according to claim 1, it is characterized in that, described respective pump axial rake is that the profile data of the inclined shaft extension pump matching used inclined outlet passage bending section (12) of 20 ° comprises: runner bending section longitudinal section upper sideline (4) coordinate (X
1, Y
1), longitudinal section lower sideline (5) coordinate (X
2, Y
2), section height H
w, section width B
wcircular transitional radius R is faded to by rectangle with section configuration
w, respective pump axial rake be the inclined outlet passage bending section profile data of 20 ° in table 2, the relative value that in table 2, data are is reference value with water pump vane diameter D,
Table 2 respective pump axial rake is the inclined outlet passage bending section profile data table of 20 °
4. the serial inclined outlet passage of hydraulic performance excellence according to claim 1, it is characterized in that, described respective pump axial rake is that the profile data of the inclined shaft extension pump matching used inclined outlet passage bending section (13) of 25 ° comprises: runner bending section longitudinal section upper sideline (4) coordinate (X
1, Y
1), longitudinal section lower sideline (5) coordinate (X
2, Y
2), section height H
w, section width B
wcircular transitional radius R is faded to by rectangle with section configuration
w, respective pump axial rake be the inclined outlet passage bending section profile data of 25 ° in table 3, the relative value that in table 3, data are is reference value with water pump vane diameter D,
Table 3 respective pump axial rake is the inclined outlet passage bending section profile data table of 25 °
5. the serial inclined outlet passage of hydraulic performance excellence according to claim 1, it is characterized in that, described respective pump axial rake is that the profile data of the inclined shaft extension pump matching used inclined outlet passage bending section (14) of 30 ° comprises: runner bending section longitudinal section upper sideline (4) coordinate (X
1, Y
1), longitudinal section lower sideline (5) coordinate (X
2, Y
2), section height H
w, section width B
wcircular transitional radius R is faded to by rectangle with section configuration
w, respective pump axial rake be the inclined outlet passage bending section profile data of 30 ° in table 4, the relative value that in table 4, data are is reference value with water pump vane diameter D,
Table 4 respective pump axial rake is the inclined outlet passage bending section profile data table of 30 °
6. the serial inclined outlet passage of hydraulic performance excellence according to claim 1, it is characterized in that, described respective pump axial rake is that the profile data of the inclined shaft extension pump matching used inclined outlet passage bending section (15) of 35 ° comprises: runner bending section longitudinal section upper sideline (4) coordinate (X
1, Y
1), longitudinal section lower sideline (5) coordinate (X
2, Y
2), section height H
w, section width B
wcircular transitional radius R is faded to by rectangle with section configuration
w, respective pump axial rake be the inclined outlet passage bending section profile data of 35 ° in table 5, the relative value that in table 5, data are is reference value with water pump vane diameter D,
Table 5 respective pump axial rake is the inclined outlet passage bending section profile data table of 35 °
7. the serial inclined outlet passage of hydraulic performance excellence according to claim 1, it is characterized in that, described respective pump axial rake is that the profile data of the inclined shaft extension pump matching used inclined outlet passage bending section (16) of 40 ° comprises: runner bending section longitudinal section upper sideline (4) coordinate (X
1, Y
1), longitudinal section lower sideline (5) coordinate (X
2, Y
2), section height H
w, section width B
wcircular transitional radius R is faded to by rectangle with section configuration
w, respective pump axial rake be the inclined outlet passage bending section profile data of 40 ° in table 6, the relative value that in table 6, data are is reference value with water pump vane diameter D,
Table 6 respective pump axial rake is the inclined outlet passage bending section profile data table of 40 °
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| CN201520043127.1U CN204476865U (en) | 2015-01-21 | 2015-01-21 | The serial inclined outlet passage of hydraulic performance excellence |
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|---|---|---|---|
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595239A (en) * | 2015-01-21 | 2015-05-06 | 扬州大学 | Series of inclined water outlet flow passages with excellent hydraulic performance and application method thereof |
| CN105608287A (en) * | 2016-01-12 | 2016-05-25 | 扬州大学 | Design method for water outlet flow passage three-dimensional-form flow surface of high-performance and large-flow pump station |
| CN105975729A (en) * | 2016-06-06 | 2016-09-28 | 扬州大学 | Method for eliminating water outlet flow channel deviation of large-flow inclined axial-flow pump station |
| CN106836456A (en) * | 2017-01-17 | 2017-06-13 | 河海大学 | A kind of fairing for improving rainfall pumping station water outlet box culvert assignment of traffic uniformity |
| CN107956950A (en) * | 2017-11-29 | 2018-04-24 | 扬州大学 | A kind of outlet passage with flow Self-balancing |
| 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 |
-
2015
- 2015-01-21 CN CN201520043127.1U patent/CN204476865U/en not_active Withdrawn - After Issue
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595239A (en) * | 2015-01-21 | 2015-05-06 | 扬州大学 | Series of inclined water outlet flow passages with excellent hydraulic performance and application method thereof |
| CN104595239B (en) * | 2015-01-21 | 2015-11-25 | 扬州大学 | The serial inclined outlet passage of hydraulic performance excellence and application process thereof |
| CN105608287A (en) * | 2016-01-12 | 2016-05-25 | 扬州大学 | Design method for water outlet flow passage three-dimensional-form flow surface of high-performance and large-flow pump station |
| CN105608287B (en) * | 2016-01-12 | 2017-05-10 | 扬州大学 | Design method for water outlet flow passage three-dimensional-form flow surface of high-performance and large-flow pump station |
| CN105975729A (en) * | 2016-06-06 | 2016-09-28 | 扬州大学 | Method for eliminating water outlet flow channel deviation of large-flow inclined axial-flow pump station |
| CN105975729B (en) * | 2016-06-06 | 2017-07-18 | 扬州大学 | A kind of method for eliminating big flow inclined axial-flow-pump station outlet passage bias current |
| CN106836456A (en) * | 2017-01-17 | 2017-06-13 | 河海大学 | A kind of fairing for improving rainfall pumping station water outlet box culvert assignment of traffic uniformity |
| CN106836456B (en) * | 2017-01-17 | 2019-02-12 | 河海大学 | A kind of fairing improving rainfall pumping station water outlet box culvert assignment of traffic uniformity |
| CN107956950A (en) * | 2017-11-29 | 2018-04-24 | 扬州大学 | A kind of outlet passage with flow Self-balancing |
| CN107956950B (en) * | 2017-11-29 | 2019-08-20 | 扬州大学 | A kind of outlet passage with flow Self-balancing |
| 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 |
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