CN205349775U - Rearmounted lateral recumbent posture shaft extension pump unit of motor - Google Patents
Rearmounted lateral recumbent posture shaft extension pump unit of motor Download PDFInfo
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- CN205349775U CN205349775U CN201620071730.5U CN201620071730U CN205349775U CN 205349775 U CN205349775 U CN 205349775U CN 201620071730 U CN201620071730 U CN 201620071730U CN 205349775 U CN205349775 U CN 205349775U
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Abstract
The utility model discloses a rearmounted lateral recumbent posture shaft extension pump unit of motor belongs to the hydraulic engineering pumping station technology field. Characterized by: water inlet channel, the axial -flow pump pump body and outlet flow channel that rearmounted lateral recumbent posture shaft extension pump unit of motor was arranged by the plane direction constitute, and motor arrangement is in outlet flow channel's the outside, will outlet flow channel designs the arcuation that becomes along the horizontal direction is crooked, and the water pump axle is exported by the diffuser of the pump body and wears out outlet flow channel, with water pump bearing and bearing frame and horizontal motor arrangement in the outlet flow channel outside, in proper order with the water pump hub connection, water inlet channel comprises import straightway, plane bending section and export round platform section, outlet flow channel comprises plane bending section and export straightway. The utility model has the advantages of the structure is comparatively simple, the motor heat dissipation condition is better, the cost is lower.
Description
Technical field
This utility model belongs to hydraulic engineering pumping plant technical field, is specifically related to a kind of motor postposition lateral recumbent posture axle and stretches pump installation, and the motor postposition lateral recumbent posture axle being mainly used in instructing engineers and technicians to design hydraulic performance excellent stretches pump installation.
Background technology
It is many to Chinese society, economic development field of significant impact that large-scale low-lift-head pumping station is widely used in Water Resources Allocation, agricultural drainage and irrigation, water environment treatment and Urban Waterlogging etc..Rated lift commonly uses, at the large-scale low-lift-head pumping station of below 3m, the bulb tubular pump device that hydraulic performance is good.The feature of this tubular pump is: arranges the closed metal housing being commonly called as " bulb " in runner, is arranged therein by the equipment such as motor, gear-box, bearing and bearing block.Bulb size owing to being arranged in runner is very limited, and causes that the bulk that equipment is arranged and maintenance is required is comparatively nervous, also brings the defects such as complicated, the motor radiating condition difference of structure simultaneously.
Utility model content
The purpose of this utility model is aiming at the defect of above-mentioned bulb tubular pump device, it is provided that a kind of motor postposition lateral recumbent posture axle stretches pump installation.Of the present utility model it is characterized by: described motor postposition lateral recumbent posture axle is stretched pump installation and is made up of water inlet flow channel, axial-flow pump body and outlet passage, and motor is arranged in the outside of outlet passage；Described outlet passage is designed to the Curved bent in the horizontal direction, pump shaft is exported by the diffuser of the pump housing and passes outlet passage, the same side with the matching used bearing of described axial-flow pump body and bearing block and horizontal machine are arranged in outlet passage, couples with pump shaft successively；Water inlet flow channel is made up of straightway of intaking, curve transition and outlet round platform section, and the base angle of descent of straightway of wherein intaking, length and entrance width can be adjusted within the specific limits；Outlet passage is made up of plane bend tune and water outlet straightway, and wherein the base angle of climb of water outlet straightway and length can be adjusted within the specific limits；Each physical dimension of described water-in and water-out runner flow-passing surface is all in order to water pump vane diameter D0Relative value for benchmark represents, relative value is multiplied by the water pump vane diameter D that pumping plant is intended adopting0The size that is actually needed of this pumping plant water-in and water-out runner.The equipment such as motor, gear-box, bearing and bearing block are arranged in outside outlet passage by this utility model, have the advantages such as structure is relatively simple, motor radiating condition better, units' installation maintenance is convenient, cost is relatively low.
For realizing the purpose of this utility model, adopt the following technical scheme that
1. the motor postposition lateral recumbent posture axle provided is stretched pump installation and is made up of water inlet flow channel, axial-flow pump body and outlet passage successively；
2. described outlet passage is designed to the Curved bent in the horizontal direction, in order to pump shaft is passed outlet passage by the outlet of pump housing diffuser；
3. it is arranged on the extended line of the pump spindle center line outside outlet passage with the equipment such as the matching used bearing of described axial-flow pump body and bearing block, gear-box and horizontal machine, couples successively with described pump shaft；
4. water inlet flow channel described in is made up of straightway of intaking, curve transition and outlet round platform section, and wherein, the main geometric parameters of water inlet straightway and outlet round platform section provides value and adjusting range, and curve transition provides cross dimensions tables of data；
5. selecting suitable high-performance axial-flow pump according to pumping plant lift, axial-flow pump body is made up of impeller and blade wheel chamber and diffuser；
6. outlet passage described in is made up of plane bend tune and water outlet straightway, and wherein, the main geometric parameters of water outlet straightway provides value and adjusting range, and plane bend tune provides cross dimensions tables of data；
7. pair described water-in and water-out runner carries out studying based on the Optimum Hydraulic Design of CFD respectively, it is ensured that the hydraulic performance of water-in and water-out runner is excellent；
8. each physical dimension of water-in and water-out runner flow-passing surface described in is all in order to water pump vane diameter D0Relative value for benchmark represents, relative value is multiplied by the water pump vane diameter D that pumping plant is intended adopting0The size that is actually needed of this pumping plant water-in and water-out runner, unit is m；
9. described in, the water inlet flow channel water inlet length of straightway, admission section width and the base angle of descent can be adjusted within the specific limits, length and the base angle of climb of described outlet passage water outlet straightway also can be adjusted within the specific limits, to adapt to the practical situation of different pumping plant.
The purpose of this utility model is achieved in that
1. the motor postposition lateral recumbent posture axle provided is stretched pump installation and is made up of water inlet flow channel, axial-flow pump body and outlet passage successively；Axial-flow pump body is made up of impeller and blade wheel chamber and diffuser；
2. described outlet passage is designed to the Curved bent in the horizontal direction, in order to pump shaft can be passed outlet passage by the outlet of pump housing diffuser；Outlet passage can two kinds of bend mode of oriented right and left (from water inlet flow channel to the direction of outlet passage, lower same) in the bending of in-plane；
3. it is arranged on the extended line of the pump spindle center line outside outlet passage with the equipment such as the matching used bearing of described axial-flow pump body and bearing block, gear-box and horizontal machine, couples successively with described pump shaft；
4. it is excellent that the motor postposition lateral recumbent posture axle provided stretches pump installation hydraulic performance, and its main hydraulic performance index is as follows:
(1) water inlet flow channel: Outlet Section water velocity distribution consistency degree Vu>=98%, runner exit current enter the average angle of water pump vane roomLoss of flood peak Δ h≤0.08m during design discharge；
(2) outlet passage: loss of flood peak Δ h≤0.15m during design discharge；
(3) pump installation: pump assembly efficiency η >=80% of design conditions；
5. water inlet flow channel described in is made up of straightway of intaking, curve transition and outlet round platform section, is provided with middle dividing pier in water inlet straightway；
Described water inlet straightway is positioned at the front portion of water inlet flow channel, and the effect of water inlet straightway is meet the requirement that pump house superstructure is arranged on the one hand, is that the current entering water inlet flow channel from Forebay of Pumping Station are made just successive step on the other hand；The length L of described water inlet straightwayWater inlet straightway=1.212D0, angle of descent α=5 °, base, admission section width BWater inlet straightway import=2.364D0, admission section height HWater inlet straightway import=1.782D0, import top board arc radius RImport top board=0.8m；The length L of septum pierDividing pier=1.212D0, width BDividing pier=0.8m, head arc radius RDividing pier head=0.4m, afterbody arc radius RDividing pier afterbody=1.5m；
Curve transition is positioned at into after water straightway, the effect of curve transition is to guide that the water flows gently turns to and uniform shrinkage, in the process, the section configuration of curve transition adopts continually varying straight flange round, in order to described section configuration is faded to circle by rectangle；The length L of described curve transitionChangeover portion=2.121D0, admission section width BChangeover portion import=2.091D0, admission section height HChangeover portion import=1.554D0；The described motor postposition lateral recumbent posture axle containing curve transition cross section place is provided to stretch pump installation elevational schematic view, floor map and cross dimensions tables of data；Cross dimensions includes the facade upper sideline coordinate (X of each section of curve transition1i, Y1i), facade lower sideline coordinate (X2i, Y2i), profile height Hwi, section width BwiWith transitional radius Rwi, each section numbering i and data are listed in table 1；
Table 1 water inlet flow channel curve transition cross dimensions tables of data
After outlet round platform section is positioned at curve transition, the effect of outlet round platform section is that current are done last rectification, thinks that blade wheel chamber's import provides uniform fluidised form；The section configuration of outlet round platform section is circular, the length L of outlet round platform sectionRound platform section=0.394D0, admission section diameter DRound platform section import=1.034D0, Outlet Section diameter DRound platform section exports=0.973D0；
6. described in, axial-flow pump body is between water inlet flow channel and outlet passage, its blade wheel chamber's admission section couples with water inlet flow channel Outlet Section, its diffuser Outlet Section couples with outlet passage admission section, its effect is to provide energy to current, produce lift, can select suitable high-performance axial-flow pump according to pumping plant lift；
7. outlet passage described in is made up of plane bend tune and water outlet straightway；
The admission section of plane bend tune couples with axial pump vane body Outlet Section, and the effect of plane bend tune is to guide current turn in order and spread gently；The section configuration of plane bend tune is a series of continually varying straight flange rounds, in order to described section configuration is faded to rectangle by circle；The length L of plane bend tuneBending section=3.424D0, admission section diameter DBending section import=1.052D0, Outlet Section height HBending section exports=1.853D0, Outlet Section width BBending section exports=1.133D0；The described motor postposition lateral recumbent posture axle containing plane bend tune cross section place is provided to stretch pump installation elevational schematic view, floor map and cross dimensions tables of data；Cross dimensions includes the facade upper sideline coordinate (X ' of each sectionUpper j, Y 'Upper j), facade lower sideline coordinate (X 'Lower j, Y 'Lower j), profile height Hwj, plane left side bearing coordinate (X 'Left j, B 'Left j), plane right side bearing coordinate (X 'Right j, B 'Right j), section width BwjWith transitional radius Rwj, each section numbering j and data are listed in table 2；
Table 2 outlet passage plane bend tune cross dimensions tables of data
After described water outlet straightway is positioned at plane bend tune, the effect of water outlet straightway is to guide the flowing of current direction oblique upper, and continues mild diffusion in the process, and water flow dynamic energy is converted into pressure energy；The length L of described water outlet straightwayWater outlet straightway=2.576D0, angle of climb β=5 °, base, Outlet Section height HWater outlet straightway exports=2.303D0, Outlet Section width BWater outlet straightway exports=1.400D0。
Compared with the conventional method, this utility model has the advantages that
First, the motor postposition lateral recumbent posture axle provided stretches pump installation can realize excellent pump installation hydraulic performance at the rated lift low-lift-head pumping station lower than 3m.
Second, the motor postposition lateral recumbent posture axle of the excellent performance provided stretches that pump installation structure is relatively simple, motor radiating condition better, units' installation maintenance is convenient, cost is relatively low.
3rd, it is simple that the motor postposition lateral recumbent posture axle of the excellent performance provided stretches pump installation application process, it is simple to engineers and technicians' application when low lift and special low lift.
4th, the motor postposition lateral recumbent posture axle of the excellent performance provided is stretched pump installation and be can be applied not only to large-scale low-lift-head pumping station, applies also for medium-sized low-lift-head pumping station, and applicable surface is wider.
Accompanying drawing explanation
Fig. 1 a is that motor postposition lateral recumbent posture axle of the present utility model stretches pump installation elevational schematic view；
Fig. 1 b is that motor postposition lateral recumbent posture axle of the present utility model stretches pump installation floor map (the outlet passage right side is curved)；
Fig. 1 c is that motor postposition lateral recumbent posture axle of the present utility model stretches pump installation floor map (an outlet passage left side is curved)；
Fig. 2 a is that motor postposition lateral recumbent posture axle of the present utility model stretches pump installation facade geometric parameter schematic diagram；
Fig. 2 b is that motor postposition lateral recumbent posture axle of the present utility model stretches pump installation plane geometry parameter schematic diagram；
Fig. 2 c is the A in Fig. 2 a of the present utility model and Fig. 2 bi-AiSectional schematic diagram；
Fig. 2 d is the B in Fig. 2 a of the present utility model and Fig. 2 bj-BjSectional schematic diagram；
Fig. 3 a is curve transition of the present utility model and plane bending section cross section place elevational schematic view；
Fig. 3 b is curve transition of the present utility model and plane bending section cross section place floor map；
Fig. 4 a is that water inlet flow channel of the present utility model water inlet length of straigh line adjusts schematic diagram；
Fig. 4 b is water inlet flow channel of the present utility model water inlet straightway admission section width adjustment schematic diagram；
Fig. 4 c is that the water inlet flow channel of the present utility model water inlet straightway base angle of descent adjusts schematic diagram；
Fig. 4 d is that water inlet flow channel of the present utility model outlet round platform segment length adjusts schematic diagram；
Fig. 5 a is that outlet passage water outlet length of straigh line of the present utility model adjusts schematic diagram；
Fig. 5 b is that the outlet passage water outlet straightway base of the present utility model angle of climb adjusts schematic diagram.
In figure: 1 water inlet flow channel, 2 axial-flow pump bodies, 3 outlet passages, 4 impellers and blade wheel chamber, 5 diffusers, 6 pump shafts, 7 bearings and bearing block, 8 gear-boxes, 9 horizontal motors, 10 water inlet straightways, 11 curve transitions, 12 outlet round platform sections, dividing pier in 13,14 plane bend tunes, 15 water outlet straightways, 16 curve transition facade upper sidelines, 17 curve transition facade lower sidelines, 18 plane bend tune facade upper sidelines, 19 plane bend tune facade lower sidelines, 20 plane bend tune plane left side bearings, 21 plane bend tune plane right side bearings.
Detailed description of the invention
Below in conjunction with drawings and Examples, this utility model is described in further detail.
The purpose of this utility model is achieved in that
1. such as Fig. 1 a, Fig. 1 b and Fig. 1 c, it is provided that described motor postposition lateral recumbent posture axle stretch pump installation and be made up of water inlet flow channel 1, axial-flow pump body 2 and outlet passage 3 successively, axial-flow pump body 2 is made up of impeller and blade wheel chamber 4 and diffuser 5；
2. described outlet passage 3 is designed to the Curved bent in the horizontal direction, in order to pump shaft 6 can be passed outlet passage 3 by the outlet of diffuser 5；As shown in fig. 1b and fig. lc, outlet passage 3 can two kinds of bend mode of oriented right and left (from water inlet flow channel 1 to the direction of outlet passage 3, lower same) in the bending of in-plane；
3. it is arranged on the extended line of pump shaft 6 centrage outside outlet passage 3 with the equipment such as the described matching used bearing of axial-flow pump body 2 and bearing block 7, gear-box 8 and horizontal machine 9, couples successively with pump shaft 6；
4. it is excellent that the motor postposition lateral recumbent posture axle provided stretches pump installation hydraulic performance, and its main hydraulic performance index is as follows:
(1) the Outlet Section water velocity distribution consistency degree V of described water inlet flow channel 1u>=98%, runner exit current enter the average angle of water pump vane room 4Loss of flood peak Δ h≤0.08m during design discharge；
(2) the loss of flood peak Δ h≤0.15m during design discharge of described outlet passage 3；
(3) described motor postposition lateral recumbent posture axle stretches pump assembly efficiency η >=80% of pump installation design conditions；
5., as shown in Fig. 1 a, Fig. 1 b and Fig. 1 c, described water inlet flow channel 1 is made up of water inlet straightway 10, curve transition 11 and outlet round platform section 12, is provided with middle dividing pier 13 in water inlet straightway 10；
Described water inlet straightway 10 is positioned at the front portion of water inlet flow channel 1, and the effect of water inlet straightway 10 is meet the requirement that pump house superstructure is arranged on the one hand, is that the current entering water inlet flow channel 1 from Forebay of Pumping Station are made just successive step on the other hand；As shown in Figure 2 a and 2 b, the length L of described water inlet straightway 10Water inlet straightway=1.212D0, angle of descent α=5 °, base, admission section width BWater inlet straightway import=2.364D0, admission section height HWater inlet straightway import=1.782D0, import top board arc radius RImport top board=0.8m；The length L of septum pier 13Dividing pier=1.212D0, width BDividing pier=0.8m, head arc radius RDividing pier head=0.4m, afterbody arc radius RDividing pier afterbody=1.5m；
Curve transition 11 is positioned at into after water straightway 10, the effect of curve transition 11 is to guide to turn to and uniform shrinkage from the water flows gently, as shown in Figure 2 c, the section configuration of curve transition 11 adopts continually varying straight flange round in the process, in order to described section configuration is faded to circle by rectangle；As shown in Figure 2 a and 2 b, the length L of described curve transition 11Changeover portion=2.121D0, admission section width BChangeover portion import=2.091D0, admission section height HChangeover portion import=1.554D0；As shown in Figure 3 a and Figure 3 b shows, it is provided that the described motor postposition lateral recumbent posture axle of the cross section place containing curve transition 11 stretches the elevational schematic view of pump installation, floor map and cross dimensions tables of data；As shown in Figure 2 c, cross dimensions includes the coordinate (X of the facade upper sideline 16 of each section of curve transition 111i, Y1i), the coordinate (X of facade lower sideline 172i, Y2i), profile height Hwi, section width BwiWith transitional radius Rwi, each section numbering i and data are listed in table 1；
After outlet round platform section 12 is positioned at curve transition 11, the effect of outlet round platform section 12 is that current are done last rectification, thinks that the import of impeller and blade wheel chamber 4 provides uniform fluidised form；The section configuration of outlet round platform section 12 is circular, as shown in Figure 2 a and 2 b, and the length L of described outlet round platform section 12Round platform section=0.394D0, admission section diameter DRound platform section import=1.034D0, Outlet Section diameter DRound platform section exports=0.973D0；
6. as shown in Fig. 1 a, Fig. 1 b and Fig. 1 c, described axial-flow pump body 2 is between water inlet flow channel 1 and outlet passage 3, the admission section of its impeller and blade wheel chamber 4 couples with the Outlet Section of water inlet flow channel 1, the Outlet Section of its diffuser 5 couples with the admission section of outlet passage 3, its effect is to provide energy to current, produce lift, can select suitable high-performance axial-flow pump according to pumping plant lift；
7. outlet passage 3 described in is made up of plane bend tune 14 and water outlet straightway 15, as shown in Fig. 1 a, Fig. 1 b and Fig. 1 c；
The admission section of plane bend tune 14 couples with the Outlet Section of axial pump vane body 5, and the effect of plane bend tune 14 is to guide current turn in order and spread gently；As shown in Figure 2 d, the section configuration of plane bend tune 14 is a series of continually varying straight flange rounds, in order to described section configuration is faded to rectangle by circle；As shown in Figure 2 a and 2 b, the length L of plane bend tune 14Bending section=3.424D0, admission section diameter DBending section import=1.052D0, Outlet Section height HBending section exports=1.853D0, Outlet Section width BBending section exports=1.133D0；As shown in Figure 3 a and Figure 3 b shows, it is provided that the described motor postposition lateral recumbent posture axle of the cross section place containing plane bend tune 14 stretches the elevational schematic view of pump installation, floor map and cross dimensions tables of data；As shown in Figure 2 d, cross dimensions includes the coordinate (X ' of the facade upper sideline 18 of each section of plane bend tune 14Upper j, Y 'Upper j), the coordinate (X ' of facade lower sideline 19Lower j, Y 'Lower j), profile height Hwj, plane left side bearing 20 coordinate (X 'Left j, B 'Left j), the coordinate (X ' of plane right side bearing 21Right j, B 'Right j), section width BwjWith transitional radius Rwj, each section numbering j and data are listed in table 2；
After described water outlet straightway 15 is positioned at plane bend tune 14, the effect of water outlet straightway 15 is to guide the flowing of current direction oblique upper, and continues mild diffusion in the process, and water flow dynamic energy is converted into pressure energy；As shown in Figure 2 a and 2 b, the length L of described water outlet straightway 15Water outlet straightway=2.576D0, angle of climb β=5 °, base, Outlet Section height HWater outlet straightway exports=2.303D0, Outlet Section width BWater outlet rectilinear outlet=1.400D0。
Embodiment
The present embodiment high-capacity pump station adopts motor postposition lateral recumbent posture axle to stretch pump installation, selects TJ04-ZL-06 water pump model, water pump vane diameter D0=3.3m, it is desirable to the pump installation that application this utility model design hydraulic performance is excellent；Needs are arranged according to pumping plant, determine the length of water inlet flow channel water inlet straightway to be 5.5m, admission section width be that 7.6m, the base angle of descent are 2 °, the length of outlet round platform section is 1.5m, it is determined that the length of outlet passage water outlet straightway is 9m, the base angle of climb is 7 °.
The step that the present embodiment high-capacity pump station motor postposition lateral recumbent posture axle of application this utility model design stretches pump installation is as follows:
1. as illustrated in figs. ia and ib, described motor postposition lateral recumbent posture axle is stretched pump installation and is made up of water inlet flow channel 1, axial-flow pump body 2 and outlet passage 3 successively, and axial-flow pump body 2 is made up of impeller and blade wheel chamber 4 and diffuser 5；Described axial-flow pump body 2 is between water inlet flow channel 1 and outlet passage 3, and the import of its blade wheel chamber 4 couples with the Outlet Section of water inlet flow channel 1, and the Outlet Section of its diffuser 5 couples with the admission section of outlet passage 3；
2. described outlet passage 3 is designed to the Curved bent to the right in the horizontal direction, in order to pump shaft 6 can be passed outlet passage 3 by the outlet of diffuser 5, as shown in Figure 1 b；
3. it is arranged on the extended line of pump shaft 6 centrage outside outlet passage 3 with the equipment such as the described matching used bearing of axial-flow pump body 2 and bearing block 7, gear-box 8 and horizontal machine 9, couples successively with pump shaft 6；
4. the relative value that the motor postposition lateral recumbent posture axle of application this utility model design is stretched the pump installation each physical dimension of water-in and water-out runner is multiplied by the water pump vane diameter D at described high-capacity pump station0=3.3m, obtains the present embodiment motor postposition lateral recumbent posture axle and stretches the actual size of pump installation water-in and water-out runner；
5. water inlet flow channel 1 described in is made up of water inlet straightway 10, curve transition 11 and outlet round platform section 12, and as shown in Figure 2 c, the section configuration of curve transition 11 adopts continually varying straight flange round, in order to described section configuration is faded to circle by rectangle；It is provided with middle dividing pier 13, as illustrated in figs. ia and ib in water inlet straightway 10；
The length L of described water inlet straightway 10Water inlet straightway=1.212D0=4.000m, angle of descent α=5 °, base, admission section width BWater inlet straightway import=2.364D0=7.801m, admission section height HWater inlet straightway import=1.782D0=5.881m, import top board arc radius RImport top board=0.8m；The length L of septum pier 13Dividing pier=1.212D0=4.000m, width BDividing pier=0.8m, head arc radius RDividing pier head=0.4m, afterbody arc radius RDividing pier afterbody=1.5m；
The length L of described curve transition 11Changeover portion=2.121D0=6.999m, admission section width BChangeover portion import=2.091D0=6.900m, admission section height HChangeover portion import=1.554D0=5.128m；The cross dimensions of described water inlet flow channel curve transition 11 includes the coordinate (X of the facade upper sideline 16 of each section1i, Y1i), the coordinate (X of facade lower sideline 172i, Y2i), profile height Hwi, section width BwiWith transitional radius Rwi, each section numbering i and data are listed in table 3；
Table 3 the present embodiment water inlet flow channel curve transition cross dimensions tables of data
The length L of described outlet round platform section 12Round platform section=0.394D0=1.300m, admission section diameter DRound platform section import=1.034D0=3.412m, Outlet Section diameter DRound platform section exports=0.973D0=3.211m；
6. outlet passage 3 described in is made up of plane bend tune 14 and water outlet straightway 15, after water outlet straightway 15 is positioned at plane bend tune 14, as illustrated in figs. ia and ib；
As shown in Figure 2 d, the section configuration of plane bend tune 14 is a series of continually varying straight flange rounds, in order to described section configuration is faded to rectangle by circle；The length L of plane bend tune 14Bending section=3.424D0=11.299m, admission section diameter DBending section import=1.052D0=3.472m, Outlet Section height HBending section exports=1.853D0=6.115m, Outlet Section width BBending section exports=1.133D0=3.739m；The cross dimensions of plane bend tune 14 includes the coordinate (X ' of the facade upper sideline 18 of each sectionUpper j, Y 'Upper j), the coordinate (X ' of facade lower sideline 19Lower j, Y 'Lower j), profile height Hwj, plane left side bearing 20 coordinate (X 'Left j, B 'Left j), the coordinate (X ' of plane right side bearing 21Right j, B 'Right j), section width BwjWith transitional radius Rwj, each section numbering j and data are listed in table 4；
Table 4 the present embodiment outlet passage plane bend tune cross dimensions tables of data
The length L of described water outlet straightway 15Water outlet straightway=2.576D0=8.501m, angle of climb β=5 °, base, Outlet Section height HWater outlet straightway exports=2.303D0=7.600m, Outlet Section width BWater outlet straightway exports=1.400D0=4.62m.
Claims (4)
1. motor postposition lateral recumbent posture axle stretches a pump installation, it is characterized in that, described motor postposition lateral recumbent posture axle is stretched pump installation and is made up of water inlet flow channel, axial-flow pump body and outlet passage；Described axial-flow pump body is between water inlet flow channel and outlet passage, and axial-flow pump body blade wheel chamber admission section couples with water inlet flow channel Outlet Section, and axial-flow pump body diffuser Outlet Section couples with outlet passage admission section；Described outlet passage is designed to the Curved bent in the horizontal direction, in order to pump shaft is passed outlet passage by the outlet of pump housing diffuser；Being arranged on the extended line of the pump spindle center line outside outlet passage with the matching used bearing of described axial-flow pump body and bearing block, gear-box and horizontal machine, bearing and bearing block, gear-box and horizontal machine couple successively with described pump shaft；Each physical dimension of described water-in and water-out runner flow-passing surface is all in order to water pump vane diameter D0Relative value for benchmark represents.
2. a kind of motor postposition lateral recumbent posture axle according to claim 1 stretches pump installation, it is characterized in that, described water inlet flow channel is made up of straightway of intaking, curve transition and outlet round platform section, the section configuration of curve transition adopts continually varying straight flange round, in order to described section configuration is faded to circle by rectangle；It is provided with middle dividing pier in water inlet straightway；
Described water inlet straightway is positioned at the front portion of water inlet flow channel, and the effect of water inlet straightway is meet the requirement that pump house superstructure is arranged on the one hand, is that the current entering water inlet flow channel from Forebay of Pumping Station are made just successive step on the other hand；The length L of described water inlet straightwayWater inlet straightway=1.212D0, angle of descent α=5 °, base, admission section width BWater inlet straightway import=2.364D0, admission section height HWater inlet straightway import=1.782D0, import top board arc radius RImport top board=0.8m；The length L of septum pierDividing pier=1.212D0, width BDividing pier=0.8m, head arc radius RDividing pier head=0.4m, afterbody arc radius RDividing pier afterbody=1.5m；
Described curve transition is positioned at into after water straightway, and the effect of curve transition is to guide to turn to and uniform shrinkage from the water flows gently, the length L of curve transitionChangeover portion=2.121D0, admission section width BChangeover portion import=2.091D0, admission section height HChangeover portion import=1.554D0；The described motor postposition lateral recumbent posture axle containing curve transition cross section place is provided to stretch pump installation elevational schematic view, floor map and cross dimensions tables of data；Cross dimensions includes the facade upper sideline coordinate (X of each section of curve transition1i, Y1i), facade lower sideline coordinate (X2i, Y2i), profile height Hwi, section width BwiWith transitional radius Rwi, each section numbering i and data are listed in table 1；
Table 1 water inlet flow channel curve transition cross dimensions tables of data
After outlet round platform section is positioned at curve transition, the effect of outlet round platform section is that current are done last rectification, thinks that blade wheel chamber's import provides uniform fluidised form；The section configuration of outlet round platform section is circular, the length L of outlet round platform sectionRound platform section=0.394D0, admission section diameter DRound platform section import=1.034D0, Outlet Section diameter DRound platform section exports=0.973D0。
3. a kind of motor postposition lateral recumbent posture axle according to claim 1 stretches pump installation, it is characterized in that, described outlet passage is made up of plane bend tune and water outlet straightway；
The admission section of plane bend tune couples with axial pump vane body Outlet Section, and the effect of plane bend tune is to guide current turn in order and spread gently；The section configuration of plane bend tune is a series of continually varying straight flange rounds, in order to described section configuration is faded to rectangle by circle；The length L of plane bend tuneBending section=3.424D0, admission section diameter DBending section import=1.052D0, Outlet Section height HBending section exports=1.853D0, Outlet Section width BBending section exports=1.133D0；The described motor postposition lateral recumbent posture axle containing plane bend tune cross section place is provided to stretch pump installation elevational schematic view, floor map and cross dimensions tables of data；Cross dimensions includes the facade upper sideline coordinate (X ' of each sectionUpper j, Y 'Upper j), facade lower sideline coordinate (X 'Lower j, Y 'Lower j), profile height Hwj, plane left side bearing coordinate (X 'Left j, B 'Left j), plane right side bearing coordinate (X 'Right j, B 'Right j), section width BwjWith transitional radius Rwj, each section numbering j and data are listed in table 2；
Table 2 outlet passage plane bend tune cross dimensions tables of data
After described water outlet straightway is positioned at plane bend tune, the effect of water outlet straightway is to guide the flowing of current direction oblique upper, and continues mild diffusion in the process, and water flow dynamic energy is converted into pressure energy；The length L of described water outlet straightwayWater outlet straightway=2.576D0, angle of climb β=5 °, base, Outlet Section height HWater outlet straightway exports=2.303D0, Outlet Section width BWater outlet straightway exports=1.400D0。
4. a kind of motor postposition lateral recumbent posture axle according to claim 3 stretches pump installation, it is characterized in that, described outlet passage in the bending of in-plane, two kinds of bend mode of oriented right and left from water inlet flow channel to the direction of outlet passage.
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| CN201620071730.5U CN205349775U (en) | 2016-01-25 | 2016-01-25 | Rearmounted lateral recumbent posture shaft extension pump unit of motor |
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| CN201620071730.5U CN205349775U (en) | 2016-01-25 | 2016-01-25 | Rearmounted lateral recumbent posture shaft extension pump unit of motor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465001A (en) * | 2016-01-25 | 2016-04-06 | 扬州大学 | Laterally horizontal type shaft extension pump device with rear motor and application method of laterally horizontal type shaft extension pump device |
| CN106311019A (en) * | 2016-08-30 | 2017-01-11 | 浙江安吉天洋滚塑设备有限公司 | Stirring and filtering tank realizing efficient temperature control, supercharging and intelligent adjustment |
| CN110173432A (en) * | 2019-06-25 | 2019-08-27 | 江苏省太湖水利规划设计研究院有限公司 | A kind of plane S-shaped axis stretches the novel speed regulation device on pump |
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2016
- 2016-01-25 CN CN201620071730.5U patent/CN205349775U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465001A (en) * | 2016-01-25 | 2016-04-06 | 扬州大学 | Laterally horizontal type shaft extension pump device with rear motor and application method of laterally horizontal type shaft extension pump device |
| CN105465001B (en) * | 2016-01-25 | 2017-05-24 | 扬州大学 | Laterally horizontal type shaft extension pump device with rear motor and application method of laterally horizontal type shaft extension pump device |
| CN106311019A (en) * | 2016-08-30 | 2017-01-11 | 浙江安吉天洋滚塑设备有限公司 | Stirring and filtering tank realizing efficient temperature control, supercharging and intelligent adjustment |
| CN110173432A (en) * | 2019-06-25 | 2019-08-27 | 江苏省太湖水利规划设计研究院有限公司 | A kind of plane S-shaped axis stretches the novel speed regulation device on pump |
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