CN105715586B - A kind of bulb forward type tubular pump water inlet flow channel and application process - Google Patents
A kind of bulb forward type tubular pump water inlet flow channel and application process Download PDFInfo
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- CN105715586B CN105715586B CN201610035774.7A CN201610035774A CN105715586B CN 105715586 B CN105715586 B CN 105715586B CN 201610035774 A CN201610035774 A CN 201610035774A CN 105715586 B CN105715586 B CN 105715586B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
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Abstract
A kind of hydraulic performance excellent bulb forward type tubular pump water inlet flow channel and application process, belong to hydraulic engineering pumping plant technical field.The invention is characterized in that：Bulb is removed out of outlet passage, thoroughly solve because the flow properties of current in outlet passage are diverging flow and the problem of easily produce vortex；Bulb is placed in water inlet flow channel, using current in water inlet flow channel flow properties be contraction flow the characteristics of, it is ensured that do not produce vortex because of the separation of flow when current flow through bulb；The water inlet flow channel is divided into linear inducer, bulb flow passing section and bottleneck round platform rectification section along water (flow) direction order, is provided for adjusting the bottleneck round platform rectification section of Inlet flow pattern between bulb flow passing section and water pump vane room.Using the bulb forward type tubular pump water inlet flow channel obtained by the present invention, not only hydraulic performance is excellent, and thoroughly solves the problems, such as the vortex in the rear-mounted tubular pump outlet passage of bulb.
Description
Technical field
The invention belongs to hydraulic engineering pumping plant technical field, and in particular to a kind of excellent bulb forward type of hydraulic performance
Tubular pump water inlet flow channel and application process, it is adaptable to instruct engineers and technicians to design the bulb of high-performance big flow pumping plant
Body forward type tubular pump water inlet flow channel.
Background technology
Bulb tubular pump device is applied to lift and is less than 3m, runs the big flow pumping plant of thousands of hours, the pattern pump year
The characteristics of device is the metal shell for being commonly called as " bulb " that the equipment such as engine, bearing and gear-box are arranged on to a closing
It is interior.Enter big flow pumping plant for some years and all habitually use the rear-mounted tubular pump of bulb, i.e.,：By the bulb
It is placed in outlet passage.More in-depth study is found：In the case where bulb is rearmounted, from having that water pump guide vane body flows out
The current of circular rector can produce larger, amesiality vortex region when flowing through bulb in its afterbody.This phenomenon is increased
The loss of flood peak of outlet passage, and result in outlet passage the pressure fluctuation of current and unstable.
The content of the invention
There is provided a kind of excellent bulb forward type through-flow of hydraulic performance aiming at above-mentioned situation for the purpose of the present invention
Pump installation water inlet flow channel and application process.The invention is characterized in that：Bulb is removed out of outlet passage, thoroughly solved because going out
The problem of flow properties of current easily produce vortex for diverging flow in water flow passage；Bulb is placed in water inlet flow channel,
The characteristics of using the flow properties of current in water inlet flow channel for contraction flow, it is ensured that do not produced when current flow through bulb because of the separation of flow
Raw vortex；It is whole that the water inlet flow channel is divided into linear inducer, bulb flow passing section and bottleneck round platform along water (flow) direction order
3 sections of section etc. is flowed, is provided for adjusting the bottleneck round platform rectification of Inlet flow pattern between bulb flow passing section and water pump vane room
Section, it is ensured that the fluidised form that current enter water pump vane room meets requirement；To comprising bulb, enter manhole, bulb support, bulb
The water inlet flow channel of each flow passage components such as body bottleneck round platform optimize Hydraulic design there is provided hydraulic performance it is excellent, application
Convenient water inlet flow channel three-dimensional body flow-passing surface；The physical dimension of each flow-passing surface of water inlet flow channel is used to water pump vane diameter
D0On the basis of the relative value that is worth represent, relative value is multiplied by the water pump vane diameter D that pumping plant is intended using0Pumping plant water inlet can be obtained
The size that runner is actually needed；The key dimension of outlet passage can be adjusted within the specific limits, to adapt to different pumping plants
It is actually needed.Using the bulb forward type tubular pump water inlet flow channel obtained by the present invention, not only hydraulic performance is excellent, and
And the vortex in the rear-mounted tubular pump water inlet flow channel of bulb is thoroughly solved the problems, such as, for ensuring that big flow pumping plant is pacified
Entirely, stable and Effec-tive Function tool is of great significance.
To realize the purpose of the present invention, adopt the following technical scheme that：
1. a kind of excellent bulb forward type tubular pump water inlet flow channel of hydraulic performance, is divided into along water (flow) direction order
3 sections of linear inducer, bulb flow passing section and bottleneck round platform rectification section etc.；
Each physical dimension of the bulb forward type tubular pump water inlet flow channel is used to water pump vane diameter D0For base
The relative value of quasi- value is represented；
Linear inducer is located at the front portion of bulb forward type tubular pump water inlet flow channel, and it is to adapt to pump house that it, which is acted on,
Preliminary rectification is carried out the need for superstructure is arranged and to current；Dividing pier during portion is set in this paragraph, this section of water inlet flow channel it is interior
Wall shape line is straight line；The length L of this section of water inlet flow channelInducer=2.183D0, admission section height HInducer import=1.887D0, import
Section width BInducer import=2.467D0, Outlet Section height HInducer is exported=1.714D0, Outlet Section width BInducer is exported=
2.130D0, import top plate arc radius RTop plate=1m, the length L of middle dividing pierDividing pier=2.183D0, thickness BDividing pier=0.8m, head circle
Arc radius RDividing pier head=0.4m, afterbody arc radius RDividing pier afterbody=0.4m；
Bulb flow passing section is located at after linear inducer, and the section is used to place bulb and its adjunct and to current
Further adjusted；The bulb of this section is made up of bowl-type rotary body and cylinder, set on the top of the cylinder into
Manhole, two parallel bulb supports are set in the bottom of the cylinder；The inwall shape line of this section of water inlet flow channel is using detailed
Thin cross section place figure and tables of data represents that tables of data includes runner vertical section top line coordinates (XUpper i, YUpper i), following line coordinates
(XLower i, YLower i), profile height Hi, section width Bi, transitional radius Ri, each section numbering i and data are listed in table 1；The bowl-type
The each point numbering j and coordinate of rotary body bus are listed in table 2；The length L of the cylinderCylinder=1.131D0, cross section diameter
DCylinder=0.926D0；Enter manhole for streamlined cylinder, its length LEnter manhole=1.131D0, width BEnter manhole=0.8m, head circular arc half
Footpath Rr1=0.4m, afterbody arc radius Rr2=1.0m；Bulb support is elongated streamline cylinder, its length LSupport=
1.375D0, width BSupport=0.1D0, head arc radius Rc1=0.05D0, afterbody arc radius Rc2=0.476D0；
The bulb flow passing section runner profile data table of table 1
The bowl-type rotary body bus each point of table 2 is numbered and coordinate
Bottleneck round platform rectification section is located at after bulb flow passing section, and this section is used to carry out current final rectification, with
Ensure that uniform fluid flow enters water pump vane room straightly；This section of water inlet flow channel body is bottleneck round platform, in water inlet flow channel bottleneck
The bulb bottleneck round platform being connected with the cylinder afterbody is set in shape round platform；The length L of bottleneck round platform rectification sectionRectification section=
1.251D0, the inlet diameter D of water inlet flow channel bottleneck round platformRunner round platform importWith outlet diameter DRunner round platform is exportedRespectively 1.714D0With
0.984D0, the inlet diameter D of bulb bottleneck round platformBulb round platform importWith outlet diameter DBulb round platform is exportedRespectively 0.926D0With
0.354D0；The bus of this section of water inlet flow channel bottleneck round platform and the bus of bulb bottleneck round platform are used to impeller diameter D0For
The relative value of a reference value represents that each point numbering k and coordinate of both buses are listed in table 3 and table 4 respectively；
The water inlet flow channel bottleneck round platform bus each point of table 3 is numbered and coordinate
The bulb bottleneck round platform bus each point of table 4 is numbered and coordinate
The water inlet flow channel three-dimensional body flow-passing surface by the inwall and middle dividing pier of water inlet flow channel, bowl-type rotary body, cylinder,
Enter the outer wall composition of manhole, bulb support, bulb bottleneck round platform.
2. a kind of application process of the excellent bulb forward type tubular pump water inlet flow channel of hydraulic performance, including it is following
Step：
(1) each physical dimension of the bulb forward type tubular pump water inlet flow channel is used to impeller diameter D0On the basis of
The relative value of value is represented；
(2) the excellent bulb forward type tubular pump water inlet flow channel of a kind of hydraulic performance, along water (flow) direction order point
For 3 sections of linear inducer, bulb flow passing section and bottleneck round platform rectification section etc.；
Linear inducer is located at the front portion of bulb forward type tubular pump water inlet flow channel, and it is to adapt to pump house that it, which is acted on,
Preliminary rectification is carried out the need for superstructure is arranged and to current；Dividing pier during portion is set in this paragraph, this section of water inlet flow channel it is interior
Wall shape line is straight line；The length L of this section of water inlet flow channelInducer=2.183D0, admission section height HInducer import=1.887D0, import
Section width BInducer import=2.467D0, Outlet Section height HInducer is exported=1.714D0, Outlet Section width BInducer is exported=
2.130D0, import top plate arc radius RTop plate=1m, the length L of middle dividing pierDividing pier=2.183D0, thickness BDividing pier=0.8m, head circle
Arc radius RDividing pier head=0.4m, afterbody arc radius RDividing pier afterbody=0.4m；
Bulb flow passing section is located at after linear inducer, and the section is used to place bulb and its adjunct and to current
Further adjusted；The bulb of this section is made up of bowl-type rotary body and cylinder, set on the top of the cylinder into
Manhole, two parallel bulb supports are set in the bottom of the cylinder；The inwall shape line of this section of water inlet flow channel is using detailed
Thin cross section place figure and tables of data represents that tables of data includes runner vertical section top line coordinates (XUpper i, YUpper i), following line coordinates
(XLower i, YLower i), profile height Hi, section width Bi, transitional radius Ri, each section numbering i and data are listed in table 1；The bowl-type
The each point numbering j and coordinate of rotary body bus are listed in table 2；The length L of the cylinderCylinder=1.131D0, cross section diameter
DCylinder=0.926D0；Enter manhole for streamlined cylinder, its length LEnter manhole=1.131D0, width BEnter manhole=0.8m, head circular arc half
Footpath Rr1=0.4m, afterbody arc radius Rr2=1.0m；Bulb support is elongated streamline cylinder, its length LSupport=
1.375D0, width BSupport=0.1D0, head arc radius Rc1=0.05D0, afterbody arc radius Rc2=0.476D0；
Bottleneck round platform rectification section is located at after bulb flow passing section, and this section is used to carry out current final rectification, with
Ensure that uniform fluid flow enters water pump vane room straightly；This section of water inlet flow channel body is bottleneck round platform, in water inlet flow channel bottleneck
The bulb bottleneck round platform being connected with the cylinder afterbody is set in shape round platform；The length L of bottleneck round platform rectification sectionRectification section=
1.251D0, the inlet diameter D of water inlet flow channel bottleneck round platformRunner round platform importWith outlet diameter DRunner round platform is exportedRespectively 1.714D0With
0.984D0, the inlet diameter D of bulb bottleneck round platformBulb round platform importWith outlet diameter DBulb round platform is exportedRespectively 0.926D0With
0.354D0；The bus of this section of water inlet flow channel bottleneck round platform and the bus of bulb bottleneck round platform are used to impeller diameter D0For
The relative value of a reference value represents that each point numbering k and coordinate of both buses are listed in table 3 and table 4 respectively；
The water inlet flow channel three-dimensional body flow-passing surface by the inwall and middle dividing pier of water inlet flow channel, bowl-type rotary body, cylinder,
Enter the outer wall composition of manhole, bulb support, bulb bottleneck round platform；
(3) the length L of the bulb forward type tubular pump water inlet flow channel linear inducerInducerAnd admission section
Width BInducer importRespectively 2.183D0With for 2.467D0, both of which can according to the need for pump house arrangement on this basis increase or
Reduce；
(4) the length L of the cylinderCylinderWith diameter DCylinderRespectively 1.131D0And 0.926D0, both of which can be in this base
The requirement arranged on plinth according to the cylinder in-vivo device is suitably increased or reduced；
(5) the length L of the cylinderCylinderChange into L 'CylinderAfterwards, the length L of the bulb flow passing sectionFlow passing sectionChange therewith
It is changed into
L′Flow passing section=L 'Cylinder+0.596D0
In formula, L 'Flow passing sectionRepresent the length of the bulb flow passing section after adjustment, L 'CylinderRepresent the length of the cylinder after adjustment
Degree；
(6) diameter of the cylinder changes into D'CylinderAfterwards, the mother of bowl-type rotary body and bulb the bottleneck round platform
Line is both needed to be adjusted accordingly；
The Adjustable calculation formula of the bowl-type rotary body bus is as follows：
X'j=Xj
In formula, XjAnd YjThe coordinate of respectively described j-th X-direction of bowl-type rotary body bus and Y-direction, (j=1,
2 ... ..., 11)；X'jAnd Yj' be respectively adjust after j-th X-direction of bowl-type rotary body bus and Y-direction coordinate, (j=
1,2 ... ..., 11)；DCylinderAnd D'CylinderDiameter before respectively described cylinder adjustment and after adjustment；
The Adjustable calculation formula of the bulb bottleneck round platform bus is as follows：
X′k=Xk
In formula, XkAnd YkThe coordinate of respectively described k-th X-direction of bulb bottleneck round platform bus and Y-direction, (k
=1,2 ... ..., 11)；X'kAnd Yk' be respectively adjust after k-th X-direction of bulb bottleneck round platform bus and Y-direction
Coordinate, (k=1,2 ... ..., 11)；DCylinderAnd D'CylinderDiameter before respectively described cylinder adjustment and after adjustment；
(7) relative value of each physical dimension of the bulb forward type tubular pump water inlet flow channel is multiplied by into pumping plant to intend adopting
Water pump vane diameter D0The size needed for the pumping plant water inlet flow channel can be obtained, unit is m；
(8) according to each geometric parameter of bulb forward type tubular pump water inlet flow channel after calculating and adjustment, it is drawn
Line chart.
Compared with prior art, the invention has the advantages that：
First, the bulb of big flow pumping plant bulb tubular pump device is moved to feed water flow by the present invention out of water inlet flow channel
In road, overcome because the flow properties of current in water inlet flow channel easily produce the disadvantage of vortex for diverging flow, make full use of
The characteristics of flow properties of current are contraction flow in water inlet flow channel, thoroughly solves when current flow through bulb because of the separation of flow
Produce the chronic illness of vortex；
Second, the bulb forward type tubular pump water inlet flow channel that the present invention is provided is divided into linear along water (flow) direction and entered
Mouth section, bulb flow passing section and bottleneck round platform rectification section；Linear inducer flows work just successive step, bulb to Forebay of Pumping Station
Body flow passing section guiding current are passed through by bulb surrounding in an orderly manner, and current are adjusted to uniform state by bottleneck round platform rectification section
Enter water pump vane room；To the middle dividing pier in water inlet flow channel and water inlet flow channel, bulb, enter manhole, bulb support, bulb bottle
Neck shape round platform etc. have flow-passing surface part optimize Hydraulic design there is provided hydraulic performance it is excellent, using convenient
Three-dimensional body flow-passing surface；
3rd, all physical dimensions of bulb forward type tubular pump water inlet flow channel of the invention are straight to water pump vane
Footpath D0On the basis of the relative value that is worth represent, these relative values are multiplied by water pump vane diameter D0It can obtain the institute at high-capacity pump station
Channel size is needed, the length and width of runner can easily be adjusted within the specific limits according to being actually needed for different pumping plants
Whole, application method is simple, is easy to engineers and technicians to apply；
4th, using the obtained bulb forward type tubular pump water inlet flow channel flow-shape of the present invention smooth out it is uniform,
Streamline is well arranged, and hydraulic performance is excellent, it is ensured that the designing quality of big flow pumping plant bulb tubular pump device water inlet flow channel,
For ensuring that the safe and stable and Effec-tive Function of pumping plant is significant.
Brief description of the drawings
Fig. 1 a are the longitudinal schematic cross-sectional views of bulb forward type tubular pump water inlet flow channel of the present invention；
Fig. 1 b are the horizontal schematic cross-sectional views of bulb forward type tubular pump water inlet flow channel of the present invention；
Fig. 2 a are bulb forward type tubular pump water inlet flow channel member and main geometric schematic diagrames of the present invention；
Fig. 2 b are bulb forward type tubular pump water inlet flow channel member and main geometric schematic diagrames of the present invention；
Fig. 2 c are A-A sectional schematic diagrams in Fig. 2 a and Fig. 2 b；
Fig. 3 a are bulb flow passing section runner cross section place facade direction schematic diagrams of the present invention；
Fig. 3 b are bulb flow passing section runner cross section place in-plane schematic diagrames of the present invention；
Fig. 4 is the bowl-type rotary body bus various point locations schematic diagram of the present invention；
Fig. 5 a are the runner bottleneck round platform bus various point locations schematic diagrames of the present invention；
Fig. 5 b are the bulb bottleneck round platform bus various point locations schematic diagrames of the present invention；
Fig. 6 is bulb forward type tubular pump water inlet flow channel three-dimensional body flow-passing surface schematic diagram of the present invention；
Fig. 7 a are linear entrance length adjustment schematic diagrames of the present invention；
Fig. 7 b are linear inducer admission section width adjustment schematic diagrames of the present invention；
Fig. 8 a are bulb flow passing section cylinder length adjustment schematic diagrames of the present invention；
Fig. 8 b are bulb flow passing section cylinder diameter adjustment schematic diagrames of the present invention；
In figure：1 linear inducer, 2 bulb flow passing sections, 3 bottleneck round platform rectification sections, dividing pier in 4, the rotation of 5 bowl-types
Body, 6 cylinders, 7 enter manhole, the support of 8 bulbs, 9 water inlet flow channel bottleneck round platforms, 10 bulb bottleneck round platforms, 11 vertical profiles
Face upper sideline, 12 vertical section lower sidelines.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
1. a kind of excellent bulb forward type tubular pump water inlet flow channel of hydraulic performance, is divided into along water (flow) direction order
3 sections of linear inducer 1, bulb flow passing section 2 and bottleneck round platform rectification section 3 etc., as illustrated in figs. 1A and ib；
Each physical dimension of the bulb forward type tubular pump water inlet flow channel is used to water pump vane diameter D0For base
The relative value of quasi- value is represented；
Linear inducer 1 is located at the front portion of bulb forward type tubular pump water inlet flow channel, and it is to adapt to pump that it, which is acted on,
The need for room superstructure arrangement and preliminary rectification is carried out to current；As shown in Figure 1 b, dividing pier 4 during portion is set in this paragraph, should
The inwall shape line of section water inlet flow channel is straight line；As shown in Figure 2 a and 2 b, the length L of this section of water inlet flow channelInducer=2.183D0、
Admission section height HInducer import=1.887D0, admission section width BInducer import=2.467D0, Outlet Section height HInducer is exported=
1.714D0, Outlet Section width BInducer is exported=2.130D0, import top plate arc radius RTop plate=1m, the length L of middle dividing pierDividing pier=
2.183D0, thickness BDividing pier=0.8m, head arc radius RDividing pier head=0.4m, afterbody arc radius RDividing pier afterbody=0.4m；
Bulb flow passing section 2 is located at after linear inducer 1, and the section is used to place bulb and its adjunct and to water
Flow into one successive step of traveling；As illustrated in figs. 1A and ib, the bulb of this section is made up of bowl-type rotary body 5 and cylinder 6；As schemed
Shown in 1a and Fig. 1 b, set on the top of the cylinder 6 into manhole 7, it is parallel in the bottom setting two of the cylinder 6
Bulb support 8；The inwall shape line of this section of water inlet flow channel represented using detailed cross section place figure and tables of data, each section position
Put and be shown in Fig. 3 a and Fig. 3 b, tables of data includes the coordinate (X of runner vertical section upper sideline 11Upper i, YUpper i), vertical section lower sideline 12
Coordinate (XLower i, YLower i), profile height Hi, section width Bi, transitional radius Ri, each section numbering i and data are listed in table 1；It is described
The each point numbering j and coordinate of the bus of bowl-type rotary body 5 are listed in table 2, and the bus various point locations are shown in Fig. 4；Such as Fig. 2 a and Fig. 2 b institutes
Show, the length L of the cylinder 6Cylinder=1.131D0, cross section diameter DCylinder=0.926D0；Enter manhole 7 for streamlined cylinder,
Its length LEnter manhole=1.131D0, width BEnter manhole=0.8m, head arc radius Rr1=0.4m, afterbody arc radius Rr2=1.0m；
Bulb support 8 is elongated streamline cylinder, its length LSupport=1.375D0, width BSupport=0.1D0, head arc radius Rc1
=0.05D0, afterbody arc radius Rc2=0.476D0；
Bottleneck round platform rectification section 3 is located at after bulb flow passing section 2, and this section is used to carry out current final rectification,
With ensure uniform fluid flow it is straight enter water pump vane room；This section of water inlet flow channel body is bottleneck round platform, in water inlet flow channel bottle
The bulb bottleneck round platform 10 being connected with the afterbody of cylinder 6 is set in neck shape round platform 9；As shown in Figure 2 a and 2 b, bottleneck
The length L of shape round platform rectification section 3Rectification section=1.251D0, the inlet diameter D of water inlet flow channel bottleneck round platform 9Runner round platform importIt is straight with outlet
Footpath DRunner round platform is exportedRespectively 1.714D0And 0.984D0, the inlet diameter D of bulb bottleneck round platform 10Bulb round platform importAnd outlet diameter
DBulb round platform is exportedRespectively 0.926D0And 0.354D0；The bus and bulb bottleneck round platform of this section of water inlet flow channel bottleneck round platform 9
10 bus is used to impeller diameter D0On the basis of the relative value that is worth represent that each point numbering k and coordinate of both buses are arranged respectively
In table 3 and table 4, the various point locations of both buses are shown in Fig. 5 a and Fig. 5 b；
The water inlet flow channel three-dimensional body flow-passing surface by water inlet flow channel inwall and middle dividing pier 4, bowl-type rotary body 5, cylinder
Body 6, the outer wall composition for entering manhole 7, bulb support 8, bulb bottleneck round platform 10, as shown in Figure 6.
2. a kind of application process of the excellent bulb forward type tubular pump water inlet flow channel of hydraulic performance, including it is following
Step：
(1) each physical dimension of the bulb forward type tubular pump water inlet flow channel is used to impeller diameter D0On the basis of
The relative value of value is represented；
(2) the excellent bulb forward type tubular pump water inlet flow channel of a kind of hydraulic performance, along water (flow) direction order point
For 3 sections of linear inducer 1, bulb flow passing section 2 and bottleneck round platform rectification section 3 etc., as illustrated in figs. 1A and ib；
Linear inducer 1 is located at the front portion of bulb forward type tubular pump water inlet flow channel, and it is to adapt to pump that it, which is acted on,
The need for room superstructure arrangement and preliminary rectification is carried out to current；As shown in Figure 1 b, dividing pier 4 during portion is set in this paragraph, should
The inwall shape line of section water inlet flow channel is straight line；As shown in Figure 2 a and 2 b, the length L of this section of water inlet flow channelInducer=2.183D0、
Admission section height HInducer import=1.887D0, admission section width BInducer import=2.467D0, Outlet Section height HInducer is exported=
1.714D0, Outlet Section width BInducer is exported=2.130D0, import top plate arc radius RTop plate=1m, the length L of middle dividing pierDividing pier=
2.183D0, thickness BDividing pier=0.8m, head arc radius RDividing pier head=0.4m, afterbody arc radius RDividing pier afterbody=0.4m；
Bulb flow passing section 2 is located at after linear inducer 1, and the section is used to place bulb and its adjunct and to water
Flow into one successive step of traveling；As illustrated in figs. 1A and ib, the bulb of this section is made up of bowl-type rotary body 5 and cylinder 6；As schemed
Shown in 1a and Fig. 1 b, set on the top of the cylinder 6 into manhole 7, it is parallel in the bottom setting two of the cylinder 6
Bulb support 8；The inwall shape line of this section of water inlet flow channel represented using detailed cross section place figure and tables of data, each section position
Put and be shown in Fig. 3 a and Fig. 3 b, tables of data includes the coordinate (X of runner vertical section upper sideline 11Upper i, YUpper i), the coordinate of lower sideline 12
(XLower i, YLower i), profile height Hi, section width Bi, transitional radius Ri, each section numbering i and data are listed in table 1；The bowl-type
The each point numbering j and coordinate of the bus of rotary body 5 are listed in table 2, and the bus various point locations are shown in Fig. 4；As shown in Figure 2 a and 2 b, institute
State the length L of cylinder 6Cylinder=1.131D0, cross section diameter DCylinder=0.926D0；Enter manhole 7 for streamlined cylinder, its length
LEnter manhole=1.131D0, width BEnter manhole=0.8m, head arc radius Rr1=0.4m, afterbody arc radius Rr2=1.0m；Bulb
Support 8 is elongated streamline cylinder, its length LSupport=1.375D0, width BSupport=0.1D0, head arc radius Rc1=
0.05D0, afterbody arc radius Rc2=0.476D0；
Bottleneck round platform rectification section 3 is located at after bulb flow passing section 2, and this section is used to carry out current final rectification,
With ensure uniform fluid flow it is straight enter water pump vane room；This section of water inlet flow channel body is bottleneck round platform, in water inlet flow channel bottle
The bulb bottleneck round platform 10 being connected with the afterbody of cylinder 6 is set in neck shape round platform 9；As shown in Figure 2 a and 2 b, bottleneck
The length L of shape round platform rectification section 3Rectification section=1.251D0, the inlet diameter D of water inlet flow channel bottleneck round platform 9Runner round platform importIt is straight with outlet
Footpath DRunner round platform is exportedRespectively 1.714D0And 0.984D0, the inlet diameter D of bulb bottleneck round platform 10Bulb round platform importAnd outlet diameter
DBulb round platform is exportedRespectively 0.926D0And 0.354D0；The bus and bulb bottleneck round platform of this section of water inlet flow channel bottleneck round platform 9
10 bus is used to impeller diameter D0On the basis of the relative value that is worth represent that each point numbering k and coordinate of both buses are arranged respectively
In table 3 and table 4, the various point locations of both buses are shown in Fig. 5 a and Fig. 5 b；
The water inlet flow channel three-dimensional body flow-passing surface by water inlet flow channel inwall and middle dividing pier 4, bowl-type rotary body 5, cylinder
Body 6, the outer wall composition for entering manhole 7, bulb support 8, bulb bottleneck round platform 10, as shown in Figure 6；
(3) the length L of the bulb forward type tubular pump water inlet flow channel linear inducer 1InducerIt is disconnected with import
Face width BInducer importRespectively 2.183D0With for 2.467D0, both of which can on this basis reduce according to the need for pump house arrangement
Or increase；
Shorten or lengthen LInducerMode as shown in Figure 7a, in figure, L "InducerRepresent the linear inducer 1 after shortening
Length, L " 'InducerRepresent the length of the linear inducer 1 after lengthening；
Decrease or increase BInducer importMode as shown in Figure 7b, in figure, B "Inducer importRepresent the linear inducer after reducing
1 admission section width, B " 'Inducer importRepresent the admission section width of the linear inducer 1 after increase；
(4) the length L of the cylinder 6CylinderWith diameter DCylinderRespectively 1.131D0And 0.926D0, both of which can be herein
On the basis of according in the cylinder 6 equipment arrange requirement suitably decrease or increase；
Shorten or lengthen LCylinderMode as shown in Figure 8 a, in figure, L "CylinderThe length of the cylinder 6 after shortening is represented,
L″′CylinderRepresent the length of the cylinder 6 after lengthening；
Reduce or increase DCylinderMode as shown in Figure 8 b, in figure, D "CylinderThe diameter of the cylinder 6 after reducing is represented,
D″′CylinderRepresent the diameter of the cylinder 6 after increasing；
(5) the length L of the cylinder 6CylinderAfter change, the length of the bulb flow passing section 2 changes into L ' therewithFlow passing section
=L 'Cylinder+0.596D0, in formula, L 'Flow passing sectionRepresent the length of the bulb flow passing section 2 after adjustment, L 'CylinderRepresent after adjustment
The length of cylinder 6；
(6) the diameter D of the cylinder 6CylinderAfter change, bowl-type rotary body 5 and bulb the bottleneck round platform 10
Bus is both needed to be adjusted accordingly；
The bus Adjustable calculation formula of the bowl-type rotary body 5 is as follows：
X'j=Xj
In formula, XjAnd YjThe coordinate of respectively described 5 bus of bowl-type rotary body, j-th X-direction and Y-direction, (j=1,
2 ... ..., 11)；X'jAnd Yj' be respectively adjust after 5 bus of bowl-type rotary body, j-th X-direction and Y-direction coordinate, (j
=1,2 ... ..., 11)；DCylinderAnd D'CylinderDiameter before respectively described cylinder adjustment and after adjustment；
According to the bus Adjustable calculation formula of bowl-type rotary body 5, to DCylinderThe bus of bowl-type rotary body 5 when increasing or reducing
It is adjusted, the bus of the bowl-type rotary body 5 after adjustment is as shown in Figure 8 b；
The bus Adjustable calculation formula of the bulb bottleneck round platform 10 is as follows：
X′k=Xk
In formula, XkAnd YkThe respectively coordinate of 10 bus of the bulb bottleneck round platform, k-th X-direction and Y-direction,
(k=1,2 ... ..., 11)；X'kAnd Yk' be respectively adjust after 10 bus of bulb bottleneck round platform k-th X-direction and Y side
To coordinate, (k=1,2 ... ..., 11)；DCylinderAnd D'CylinderDiameter before respectively described cylinder adjustment and after adjustment；
According to the bus Adjustable calculation formula of bulb bottleneck round platform 10, to DCylinderBulb bottleneck when reducing or increasing
The bus of shape round platform 10 is adjusted, and the bus of the bulb bottleneck round platform 10 after adjustment is as shown in Figure 8 b；
(7) relative value of each physical dimension of the bulb forward type tubular pump water inlet flow channel is multiplied by into pumping plant to intend adopting
Water pump vane diameter D0The size needed for the pumping plant water inlet flow channel can be obtained, unit is m；
(8) according to each geometric parameter of bulb forward type tubular pump water inlet flow channel after calculating and adjustment, in AUTO
Its line chart is drawn in CAD software.
Embodiment
The present embodiment big flow pumping plant uses bulb forward type tubular pump, water pump vane diameter D0=3.2m,
Ask using the excellent water inlet flow channel of present invention design hydraulic performance, the need for being arranged according to pumping plant civil engineering and motor device, it is determined that
Linear entrance length and admission section width are respectively 7.25m and 8.0m, cylinder length and diameter be respectively 3.8m and
2.88m。
Using the present invention design the present embodiment big flow pumping plant water inlet flow channel the step of it is as follows：
1. the water inlet flow channel as illustrated in figs. 1A and ib, designed according to the present invention enters along water (flow) direction including linear
3 sections of mouth section 1, bulb flow passing section 2 and bottleneck round platform rectification section 3 etc.；Dividing pier 4 during the middle part of linear inducer 1 is set；
Place in bulb flow passing section 2 bulb and its it is attached enter manhole 7, bulb support 8；Bulb is by bowl-type rotary body 5 and circle
Cylinder 6 is constituted；Set on the top of the cylinder 6 into manhole 7, two parallel lamps are set in the bottom of the cylinder 6
Foam support 8；Bottleneck round platform rectification section 3 is made up of water inlet flow channel bottleneck round platform 9 and bulb bottleneck round platform 10；
Each physical dimension phase of the present embodiment bulb forward type tubular pump water inlet flow channel that will be designed using the present invention
The water pump vane diameter D of the big flow pumping plant is multiplied by value0=3.2m, obtains the pumping plant bulb forward type tubular pump
The size of water inlet flow channel：
(1) the length L of the water inlet flow channel of linear inducer 1Inducer=2.183D0=6.986m, admission section height
HInducer import=1.887D0=6.038m, admission section width BInducer import=2.467D0=7.894m, Outlet Section height
HInducer is exported=1.714D0=5.484m, Outlet Section width BInducer is exported=2.130D0=6.816m, import top plate arc radius
RTop plate=1m, the length L of middle dividing pier 4Dividing pier=2.183D0=6.986m, thickness BDividing pier=0.8m, head arc radius RDividing pier head=
0.4m, afterbody arc radius RDividing pier afterbody=0.4m；
(2) profile data of the water inlet flow channel inwall shape line of bulb flow passing section 2 includes runner vertical section upper sideline 11
Coordinate (XUpper i, YUpper i), the coordinate (X of lower sideline 12Lower i, YLower i), profile height Hi, section width Bi, transitional radius Ri, each section
Numbering i and data are listed in table 5；The each point numbering j and coordinate of the bus of bowl-type rotary body 5 are listed in table 6；The length L of cylinder 6Cylinder
=1.131D0=3.619m, cross section diameter DCylinder=0.926D0=2.964m；Enter the length L of manhole 7Enter manhole=1.131D0=
3.619m, width BEnter manhole=0.8m, head arc radius Rr1=0.4m, afterbody arc radius Rr2=1.0m；Bulb support 8
Length LSupport=1.375D0=4.4m, width BSupport=0.1D0=0.32m, head arc radius Rc1=0.05D0=0.16m,
Afterbody arc radius Rc2=0.476D0=1.523m；
The bulb flow passing section runner profile data table of the present embodiment of table 5
The bowl-type rotary body bus each point numbering and coordinate of the present embodiment of table 6
(3) the length L of bottleneck round platform rectification section 3Rectification section=1.251D0=4.003m, water inlet flow channel bottleneck round platform 9
Inlet diameter DRunner round platform importWith outlet diameter DRunner round platform is exportedRespectively 1.714D0=5.484m and 0.984D0=3.148m, bulb
The inlet diameter D of bottleneck round platform 10Bulb round platform importWith outlet diameter DBulb round platform is exportedRespectively 0.926D0=2.964m and
0.354D0=1.132m；The bus of water inlet flow channel bottleneck round platform 9 and the bus each point numbering k of bulb bottleneck round platform 10
And coordinate is listed in table 7 and table 8 respectively；
The water inlet flow channel bottleneck round platform bus each point numbering and coordinate of the present embodiment of table 7
The bulb bottleneck round platform bus each point numbering and coordinate of the present embodiment of table 8
2. the present embodiment big flow pumping plant requires that the length of linear inducer 1 is 7.25m, according to the 1st big step the (1)
The length L of obtained linear inducer 1 is calculated in stepInducer=6.986m, need to lengthen 0.264m, lengthen mode such as Fig. 7 a institutes
Show；
3. the present embodiment big flow pumping plant requires that the admission section width of linear inducer 1 is 8.0m, according to the 1st big step
The admission section width B of obtained linear inducer 1 is calculated in rapid (1) stepInducer import=7.894m, need to widen 0.106m,
Add wide way is as shown in Figure 7b；
4. the present embodiment big flow pumping plant requires that the length of cylinder 6 is 3.8m, fallen into a trap according to the 1st big step the (2) step
The length L of obtained cylinder 6Cylinder=3.619m, need to lengthen 0.181m, lengthen mode as shown in Figure 8 a；Bulb excessively stream
The length of section 2 changes into L 'Flow passing section=L 'Cylinder+0.596D0=3.8+0.596 × 3.2=5.707m, lengthens mode such as Fig. 8 a institutes
Show；
5. the present embodiment big flow pumping plant requires a diameter of 2.88m of cylinder 6, fallen into a trap according to the 1st big step the (2) step
The diameter D of obtained cylinder 6Cylinder=2.96m, need to reduce 0.08m, reduce mode as shown in Figure 8 b；
Cylinder diameter DCylinderIt is decreased to by 2.96m after 2.88m, the bus of bowl-type rotary body 5 need to be according to bowl-type rotary body
Bus Adjustable calculation formula is adjusted accordingly, and the bus each point numbering j and coordinate of the bowl-type rotary body 5 after adjustment are listed in table 9；
Bowl-type rotary body bus each point numbering and coordinate after the adjustment of the present embodiment of table 9
Cylinder diameter DCylinderIt is decreased to by 2.96m after 2.88m, the bus of bulb bottleneck round platform 10 need to be according to bulb
The bus Adjustable calculation formula of body bottleneck round platform 10 is adjusted accordingly, the bus each point of the bulb bottleneck round platform 10 after adjustment
Numbering k and coordinate are listed in table 10；
Bulb bottleneck round platform bus each point numbering and coordinate after the adjustment of the present embodiment of table 10
6. according to each geometric parameter of the water inlet flow channel after calculating and adjustment, its single line is drawn in AUTO CAD softwares
Figure.
Claims (7)
1. a kind of bulb forward type tubular pump water inlet flow channel, it is characterized in that,
The water inlet flow channel is divided into linear inducer, bulb flow passing section and bottleneck round platform rectification section along water (flow) direction order
3 sections；
Linear inducer is located at the front portion of bulb forward type tubular pump water inlet flow channel, and the effect of linear inducer is suitable
Preliminary rectification is carried out the need for answering pump house superstructure arrangement and to current；Dividing pier in being set in the middle part of linear inducer, directly
The inwall shape line of linear inducer water inlet flow channel is straight line；
Bulb flow passing section is located at after linear inducer, for placing bulb and its adjunct and traveling one being flowed into water
Successive step；The bulb of bulb flow passing section is made up of bowl-type rotary body and cylinder, set on the top of the cylinder into
Manhole, the bottom of cylinder sets two parallel bulb supports；Enter manhole for streamlined cylinder；Bulb support is elongated
Streamlined cylinder；
Bottleneck round platform rectification section is located at after bulb flow passing section, for current to be carried out with final rectification, to ensure current
Uniformly enter water pump vane room straightly；Bottleneck round platform rectification section water inlet flow channel body is bottleneck round platform, in water inlet flow channel
The bulb bottleneck round platform being connected with the cylinder afterbody is set in bottleneck round platform；
The three-dimensional body flow-passing surface of the bulb forward type tubular pump water inlet flow channel by water inlet flow channel inwall and in every
Pier, bowl-type rotary body, cylinder, the outer wall composition for entering manhole, bulb support, bulb bottleneck round platform；
Each physical dimension of the bulb forward type tubular pump water inlet flow channel is used to water pump vane diameter D0On the basis of phase
Value is represented.
2. bulb forward type tubular pump water inlet flow channel according to claim 1, it is characterized in that, the linear enters
The length L of mouth section water inlet flow channelInducer=2.183D0, admission section height HInducer import=1.887D0, admission section width BInducer import
=2.467D0, Outlet Section height HInducer is exported=1.714D0, Outlet Section width BInducer is exported=2.130D0, import top plate circular arc
Radius RTop plate=1m, the length L of middle dividing pierDividing pier=2.183D0, thickness BDividing pier=0.8m, head arc radius RDividing pier head=0.4m, tail
Portion arc radius RDividing pier afterbody=0.4m.
3. bulb forward type tubular pump water inlet flow channel according to claim 1, it is characterized in that, the bulb mistake
The inwall shape line of stream section water inlet flow channel represents that tables of data is sat including runner vertical section upper sideline using cross section place figure and tables of data
Mark (XUpper i, YUpper i), following line coordinates (XLower i, YLower i), profile height Hi, section width Bi, transitional radius Ri, each section numbering i
And data are listed in table 1；The each point numbering j and coordinate of the bowl-type rotary body bus are listed in table 2；The length L of the cylinderCylinder
=1.131D0, cross section diameter DCylinder=0.926D0；Enter manhole for streamlined cylinder, enter the length L of manholeEnter manhole=1.131D0、
Width BEnter manhole=0.8m, head arc radius Rr1=0.4m, afterbody arc radius Rr2=1.0m；Bulb support is elongated stream
Line style cylinder, the length L of bulb supportSupport=1.375D0, width BSupport=0.1D0, head arc radius Rc1=0.05D0, tail
Portion arc radius Rc2=0.476D0；
The bulb flow passing section runner profile data table of table 1
The bowl-type rotary body bus each point of table 2 is numbered and coordinate
4. bulb forward type tubular pump water inlet flow channel according to claim 1, it is characterized in that, the bottleneck circle
The length L of platform rectification sectionRectification section=1.251D0, the inlet diameter D of water inlet flow channel bottleneck round platformRunner round platform importAnd outlet diameter
DRunner round platform is exportedRespectively 1.714D0And 0.984D0, the inlet diameter D of bulb bottleneck round platformBulb round platform importAnd outlet diameter
DBulb round platform is exportedRespectively 0.926D0And 0.354D0；The bus of water inlet flow channel bottleneck round platform and the mother of bulb bottleneck round platform
The each point numbering k and coordinate of line are listed in table 3 and table 4 respectively；
The water inlet flow channel bottleneck round platform bus each point of table 3 is numbered and coordinate
The bulb bottleneck round platform bus each point of table 4 is numbered and coordinate
5. a kind of application process of bulb forward type tubular pump water inlet flow channel, it is characterized in that, comprise the following steps：
(1) the bulb forward type tubular pump water inlet flow channel is divided into linear inducer, bulb along water (flow) direction order
3 sections of body flow passing section and bottleneck round platform rectification section；Each physical dimension of the bulb forward type tubular pump water inlet flow channel is equal
To impeller diameter D0On the basis of relative value represent；Linear inducer is located at bulb forward type tubular pump feed water flow
The front portion in road, linear inducer effect is the need for adapting to pump house superstructure arrangement and carries out preliminary rectification to current；Directly
Dividing pier in being set in the middle part of linear inducer, the inwall shape line of linear inducer water inlet flow channel is straight line；Linear inducer enters
The length L of water flow passageInducer=2.183D0, admission section height HInducer import=1.887D0, admission section width BInducer import=
2.467D0, Outlet Section height HInducer is exported=1.714D0, Outlet Section width BInducer is exported=2.130D0, import top plate circular arc half
Footpath RTop plate=1m, the length L of middle dividing pierDividing pier=2.183D0, thickness BDividing pier=0.8m, head arc radius RDividing pier head=0.4m, afterbody
Arc radius RDividing pier afterbody=0.4m；
Bulb flow passing section is located at after linear inducer, for placing bulb and its adjunct and traveling one being flowed into water
Successive step；The bulb of bulb flow passing section is made up of bowl-type rotary body and cylinder, set on the top of the cylinder into
Manhole, the bottom of the cylinder sets two parallel bulb supports；The inwall shape line of bulb flow passing section water inlet flow channel
Represented using cross section place figure and tables of data, tables of data includes runner vertical section top line coordinates (XUpper i, YUpper i), following line coordinates
(XLower i, YLower i), profile height Hi, section width Bi, transitional radius Ri, each section numbering i and data are listed in table 5；The bowl-type
The each point numbering j and coordinate of rotary body bus are listed in table 6；The length L of the cylinderCylinder=1.131D0, cross section diameter DCylinder
=0.926D0；Enter manhole for streamlined cylinder, enter the length L of manholeEnter manhole=1.131D0, width BEnter manhole=0.8m, head circular arc
Radius Rr1=0.4m, afterbody arc radius Rr2=1.0m；Bulb support is elongated streamline cylinder, the length of bulb support
Spend LSupport=1.375D0, width BSupport=0.1D0, head arc radius Rc1=0.05D0, afterbody arc radius Rc2=0.476D0；
The bulb flow passing section runner profile data table of table 5
The bowl-type rotary body bus each point of table 6 is numbered and coordinate
Bottleneck round platform rectification section is located at after bulb flow passing section, for current to be carried out with final rectification, to ensure current
Uniformly enter water pump vane room straightly；Bottleneck round platform rectification section water inlet flow channel body is bottleneck round platform, in water inlet flow channel
The bulb bottleneck round platform being connected with the cylinder afterbody is set in bottleneck round platform；The length of bottleneck round platform rectification section
LRectification section=1.251D0, the inlet diameter D of water inlet flow channel bottleneck round platformRunner round platform importWith outlet diameter DRunner round platform is exportedRespectively
1.714D0And 0.984D0, the inlet diameter D of bulb bottleneck round platformBulb round platform importWith outlet diameter DBulb round platform is exportedRespectively
0.926D0And 0.354D0；The each point numbering k of the bus of water inlet flow channel bottleneck round platform and the bus of bulb bottleneck round platform and
Coordinate is listed in table 7 and table 8 respectively；
The water inlet flow channel bottleneck round platform bus each point of table 7 is numbered and coordinate
The bulb bottleneck round platform bus each point of table 8 is numbered and coordinate
The three-dimensional body flow-passing surface of the bulb forward type tubular pump water inlet flow channel by water inlet flow channel inwall and in every
Pier, bowl-type rotary body, cylinder, the outer wall composition for entering manhole, bulb support, bulb bottleneck round platform；
(2) the length L of the bulb forward type tubular pump water inlet flow channel linear inducerInducerWith admission section width
BInducer importRespectively 2.183D0With for 2.467D0, both of which can on this basis decrease or increase according to the need for pump house arrangement；
(3) the length L of the cylinderCylinderWith diameter DCylinderRespectively 1.131D0And 0.926D0, both of which can be on this basis
Suitably decreased or increased according to the requirement that the cylinder in-vivo device is arranged；
(4) the length L of the cylinderCylinderChange into L 'CylinderAfterwards, the length L of the bulb flow passing sectionFlow passing sectionChange into therewith
L′Flow passing section=L 'Cylinder+0.596D0
In formula, L 'Flow passing sectionRepresent the length of the bulb flow passing section after adjustment, L 'CylinderRepresent the length of the cylinder after adjustment；
(5) the diameter D of the cylinderCylinderChange into D 'CylinderAfterwards, the mother of bowl-type rotary body and bulb the bottleneck round platform
Line is both needed to be adjusted accordingly；
(6) relative value of each physical dimension of the bulb forward type tubular pump water inlet flow channel is multiplied by pumping plant and intends what is used
Water pump vane diameter D0The size needed for the pumping plant water inlet flow channel can be obtained, unit is m；
(7) according to each geometric parameter of bulb forward type tubular pump water inlet flow channel after calculating and adjustment, its single line is drawn
Figure.
6. a kind of application process of bulb forward type tubular pump water inlet flow channel according to claim 5, its feature
It is that the Adjustable calculation formula of the bowl-type rotary body bus is as follows：
X′j=Xj
In formula, XjAnd YjThe coordinate of respectively described j-th X-direction of bowl-type rotary body bus and Y-direction, (j=1,2 ... ...,
11)；X′jWith Y 'jThe coordinate of j-th X-direction of bowl-type rotary body bus and Y-direction after respectively adjusting, (j=1,
2 ... ..., 11)；DCylinderWith D 'CylinderDiameter before respectively described cylinder adjustment and after adjustment.
7. a kind of application process of bulb forward type tubular pump water inlet flow channel according to claim 5, its feature
It is that the Adjustable calculation formula of the bulb bottleneck round platform bus is as follows：
X′k=Xk
In formula, XkAnd YkThe coordinate of respectively described k-th X-direction of bulb bottleneck round platform bus and Y-direction, (k=1,
2 ... ..., 11)；X′kWith Y 'kThe seat of k-th X-direction of bulb bottleneck round platform bus and Y-direction after respectively adjusting
Mark, (k=1,2 ... ..., 11)；DCylinderWith D 'CylinderDiameter before respectively described cylinder adjustment and after adjustment.
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|---|---|---|---|---|
| US4780052A (en) * | 1986-09-02 | 1988-10-25 | Compagnie General Des Matieres Nucleaires | Rotary blower with guide sleeve |
| CN102182690A (en) * | 2011-06-08 | 2011-09-14 | 扬州大学 | Composite tubular pump device |
| CN202091206U (en) * | 2011-06-08 | 2011-12-28 | 扬州大学 | Combined type tubular pump device of water outlet structure |
| CN202451432U (en) * | 2012-02-22 | 2012-09-26 | 扬州大学 | Improved hybrid type tubular pump device |
| CN203223412U (en) * | 2013-04-27 | 2013-10-02 | 扬州大学 | Spindle type bulb tubular pump device |
| CN104454631A (en) * | 2014-10-30 | 2015-03-25 | 河海大学 | Low-lift high-flow reversible tubular pump with asymmetric SX type blades |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205533430U (en) * | 2016-01-19 | 2016-08-31 | 扬州大学 | Bulb forward type through -flow pump unit water inlet channel that water conservancy performance is excellent |
-
2016
- 2016-01-19 CN CN201610035774.7A patent/CN105715586B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4780052A (en) * | 1986-09-02 | 1988-10-25 | Compagnie General Des Matieres Nucleaires | Rotary blower with guide sleeve |
| CN102182690A (en) * | 2011-06-08 | 2011-09-14 | 扬州大学 | Composite tubular pump device |
| CN202091206U (en) * | 2011-06-08 | 2011-12-28 | 扬州大学 | Combined type tubular pump device of water outlet structure |
| CN202451432U (en) * | 2012-02-22 | 2012-09-26 | 扬州大学 | Improved hybrid type tubular pump device |
| CN203223412U (en) * | 2013-04-27 | 2013-10-02 | 扬州大学 | Spindle type bulb tubular pump device |
| CN104454631A (en) * | 2014-10-30 | 2015-03-25 | 河海大学 | Low-lift high-flow reversible tubular pump with asymmetric SX type blades |
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