CN104776061B - Fixed guide vane body inlet angle adjustable axial flow pump - Google Patents
Fixed guide vane body inlet angle adjustable axial flow pump Download PDFInfo
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- CN104776061B CN104776061B CN201510223771.1A CN201510223771A CN104776061B CN 104776061 B CN104776061 B CN 104776061B CN 201510223771 A CN201510223771 A CN 201510223771A CN 104776061 B CN104776061 B CN 104776061B
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Abstract
The invention relates to the technical field of water pumps, in particular to a fixed guide vane body inlet angle adjustable axial flow pump which comprises an impeller chamber (9), a water inlet horn mouth (8), an impeller body (10), a guide vane body (1) and a pump shaft (2). The guide vane body (1) comprises a plurality of guide vanes (3) and a dispersing pipe. The axial flow pump further comprises an adjusting system which comprises a control unit, a middle unit and an executing unit. According to different working conditions, a proper guide vane inlet angle is adjusted, so that the guide vane inlet angle is matched with an impeller flow-out angle, the circular rector of the fixed guide vane body is changed, accordingly, stress is improved, then, hydraulic loss such as impact and streaming around is lowered, energy loss is lowered, the operation stability of the pump is improved, and finally the purpose of axial flow pump performance improving is achieved.
Description
Technical field
The present invention relates to pump technology field, the adjustable axial-flow pump of more particularly to a kind of fixed guide vane body inlet angle.
Background technology
Axial-flow pump is a kind of extremely wide Hydromotive machine apparatus of purposes, and it has the characteristics of flow is big, lift is low, is extensively transported
For in large area farmland discharging-irrigating and water diversion project.Using in a large number for axial-flow pump, also certainly will increasingly increase the demand of the energy,
Therefore, reduce the hydraulic loss of axial-flow pump, improve its efficiency, energy-saving and emission-reduction work is had great importance.
In order to improve the efficiency of axial-flow pump, the methods such as the structure design of optimization impeller and runner, but this method can be adopted
What is typically consumed is relatively costly.There is certain circumferential speed component in view of axial-flow pump impeller outlet absolute velocity, if not making
Process, the circumferential speed component can bring certain energy loss, therefore, at present conventional method is that after the impeller face arranges many
The kinetic energy of rotary motion is converted into pressure energy by individual stator to eliminate the rotary motion from impeller trickle, so as to reach energy
The purpose that amount is reclaimed.
But traditional axial pump vane is all to be designed and be fixed on certain laying angle to lead according to declared working condition
On leaf body wheel hub, it is impossible to be turned into corresponding regulation with the change of operating mode.And when axial-flow pump runs under off-design behaviour, diffuser
There is the angle of attack between import laying angle and impeller outlet fluid flow angle, be also easy to produce impact loss.Meanwhile, according to design experiences, stator enters
Mouth is parallel while typically with impeller outlet, and its spacing should be (0.05～0.1) D, if distance design is unreasonable, is easily caused axle stream
Pump operation job insecurity, so as to affect its efficiency.
The method for designing of generally axial pump vane is first to determine aerofoil profile circular arc bone line, then it is thickeied, stator
Inlet side answers cavetto, afterbody to answer retapering, is beneficial to liquid and streams.The change of stator leading edge locus is substantially aerofoil profile circular arc bone line
The change of length, the carrying out of this change is according to different operating conditions；The rotating speed of pump it is constant, flow changes when, leaf
The relative fluid flow angle of wheel outlet is constant, and absolute fluid flow angle changes；And match in order to be able to go out stream with impeller, vane inlet angle also will
Make corresponding changes so that vane inlet angle and the absolute fluid flow angle approximately equal of impeller outlet.
The content of the invention
Go out to flow direction for the impeller under different pump operation operating modes, it is an object of the invention to provide a kind of fixed guide vane body
The adjustable axial-flow pump of inlet angle, the vane inlet angle of its fixed guide vane body can adjust in time so that vane inlet angle and leaf
Take turns out Liu Jiao to match, to change the circular rector of fixed guide vane body, so as to improve its stress, and then reduce impact and the waterpower such as stream
Loss, improves the efficiency of axial-flow pump.
In order to achieve the above object, the invention provides following technical scheme：
A kind of adjustable axial-flow pump of fixed guide vane body inlet angle, including blade wheel chamber 9, water-inlet horn mouth 8, impeller body 10,
Diffuser 1 and pump shaft 2, the diffuser 1 includes multiple stators 3 and anemostat, and the axial-flow pump also includes regulating system, institute
Regulating system is stated including control unit, temporary location and performance element；
Described control unit includes the first control unit and the second control unit；
First control unit is disposed with the first cylinder bottom including a first movable screw thread stock piston 211, bottom
The first Oil preserving piston cylinder 191 and the first end cover 201 in Oil Guide duct 221；The first Oil preserving piston cylinder 191 is located at stator
In body 1, the first screw thread stock piston 211 is located in the first Oil preserving piston cylinder 191；
Second control unit is disposed with the second cylinder bottom including a second movable screw thread stock piston 212, bottom
The second Oil preserving piston cylinder 192 and the second end cover 202 in Oil Guide duct 222；The second Oil preserving piston cylinder 192 is located at stator
In body 1, the second screw thread stock piston 212 is located in the second Oil preserving piston cylinder 192；
The temporary location includes the first pipeline and the second pipeline；
First pipeline includes oil guide pipe 171 on first, first annular point of oily pipe 41, first time and of oil guide pipe 161
It is arranged in Oil Guide duct 151 in the first stator in diffuser 1 and stator 3；The import of described first annular point oily pipe 41 is led to
Cross oil guide pipe 171 on first to connect with the first cylinder bottom Oil Guide duct 221 of the bottom of the first Oil preserving piston cylinder 191, first annular point
The outlet of oily pipe 41 is connected by first time oil guide pipe 161 with Oil Guide duct 151 in the first stator；
Second pipeline includes the oily pipe 42 of the annular point of oil guide pipe 172, second, second time and of oil guide pipe 162 on second
It is arranged in Oil Guide duct 152 in the second stator in diffuser 1 and stator 3；The import of the second annular point oil pipe 42 is led to
Cross oil guide pipe 172 on second to connect with the second cylinder bottom Oil Guide duct 222 of the bottom of the second Oil preserving piston cylinder 192, the second annular point
The outlet of oily pipe 42 is connected by second time oil guide pipe 162 with Oil Guide duct 152 in the second stator；
The performance element includes stator inner carrier cylinder 14 and piston slider body 12；The stator inner carrier cylinder 14 is located at and leads
In leaf 3, bottom is connected by oil guiding hole with Oil Guide duct 151 in the first stator of temporary location；The piston slider body 12 can
It is embedded in dynamicly in the front end cavity of stator 3, it includes Slipper and piston portion；Wherein, relative the two of the Slipper
Side is embedded in respectively in the corresponding chute 11 of diffuser 1, and the chute 11 is located in the front end of stator 3 and diffuser 1 crosses water flow passage
Inside and outside wall junction；The piston portion is located in stator inner carrier cylinder 14, the side of the thread ending cover 13 of stator inner carrier cylinder 14
Face is provided with aperture, connects with Oil Guide duct 152 in the second stator of temporary location.
The blade wheel chamber 9 is water-inlet horn mouth 8 and the junction space of diffuser 1, and the diffuser 1 is fixed on blade wheel chamber 9
Rear end, pump shaft 2 is rotatably mounted to the cental axial position of diffuser 1 by bearing, and water-inlet horn mouth 8 connects with diffuser 1
Connect, be fixed on the front end of blade wheel chamber 9, impeller body 10 is fixed on the pump shaft 2 near one end of water-inlet horn mouth 8, and is located at
In the blade wheel chamber 9.
The top of the first Oil preserving piston cylinder 191 is sealed by the first end cover 201 and oil seal ring, the first end cover
With the screw thread matched with the first screw thread stock piston 211 on 201；The top of the second Oil preserving piston cylinder 192 is by second
End cover 202 and oil seal ring are sealed, with the spiral shell matched with the second screw thread stock piston 212 on the second end cover 202
Line.
The described first annular point oily annular point of pipe 41 and second oil pipe 42 is respectively around the circle of the periphery of diffuser 1
Pipe.
On the first cylinder bottom Oil Guide duct 191 and first between oil guide pipe 171, first time oil guide pipe 161 lead with first
Sealed using the first Oil Guide pipe joint 181 and oil seal ring between Oil Guide duct 151 in leaf；The second cylinder bottom Oil Guide duct
Second is adopted on 192 and second between oil guide pipe 172, in second time stator of oil guide pipe 162 and second between Oil Guide duct 152
Oil Guide pipe joint 182 and oil seal ring are sealed.
The cylinder body of the stator inner carrier cylinder 14 is sealed by the oil seal ring 131 of thread ending cover 13 and first, piston
Partial connecting rod passes through thread ending cover 13, and is sealed by the second oil seal ring 132 between thread ending cover 13.
Be provided with waterproof gasket 111 between the Slipper and chute 11 and the front end chamber portion of stator 3, it is described before
End chamber portion refers to the space that the Slipper of the piston slider body 12 in the front end of stator 3 is occupied.
Compared with prior art, the beneficial effects of the present invention is：
The present invention improves the fluidised form that current enter diffuser by changing the vane inlet angle of axial pump vane body, so as to
Reach the purpose for recovering energy.When pump runs under off-design behaviour, this method can adjust in good time vane inlet angle and
Spacing of vane inlet while with impeller outlet, to eliminate circumferential speed component to greatest extent and reduce impact loss, so as to carry
Rise the operational efficiency and job stability of pump.Axial pump vane body simple structure provided by the present invention, it is easily achieved, and adopts
Good stability, maneuverable hydraulic drive, without the need for providing extra power drive device, reduce use cost.
Description of the drawings
Fig. 1 is the entirety sectional view of the adjustable axial-flow pump of fixed guide vane body inlet angle of the present invention；
Fig. 1 a are discharge velocity triangle schematic diagram；
Fig. 1 b are stator aerofoil profile bone line chart；
Fig. 1 c are O in Fig. 1 b1' point aerofoil profile bone line vane inlet speed triangle schematic diagram；
Fig. 1 d are O in Fig. 1 b1The vane inlet speed triangle schematic diagram of the aerofoil profile bone line of point；
Fig. 1 e are O in Fig. 1 b1" the vane inlet speed triangle schematic diagram of the aerofoil profile bone line of point；
Fig. 2 is the partial enlarged drawing of I part in Fig. 1；
Fig. 3 is the partial enlarged drawing of II part in Fig. 1；
Fig. 4 is the partial enlarged drawing of III part in Fig. 1；
Fig. 5 is diffuser F-F sections and the oily pipe front view of annular point in Fig. 1；
Fig. 6 is the partial sectional view of stator；
Fig. 7 is the partial enlarged drawing of I part in Fig. 6；
Fig. 8 is stator E-E section wing figures in Fig. 6；
Fig. 9 is the partial enlarged drawing of wing type head in Fig. 8.
【Primary clustering symbol description】
1 diffuser
2 pump shafts
3 stators
41 first annular points of oily pipes
The oily pipe of 42 second annulars point
5 bolts
6 packing rings
7 nuts
8 water-inlet horn mouths
9 blade wheel chamber
10 impeller bodies
11 chutes
111 waterproof gaskets
12 piston slider bodies
13 thread ending covers
131 first oil seal rings
132 second oil seal rings
14 stator inner carrier cylinders
Oil Guide duct in 151 first stators
Oil Guide duct in 152 second stators
161 first time oil guide pipe
162 second time oil guide pipe
Oil guide pipe on 171 first
Oil guide pipe on 172 second
181 first Oil Guide pipe joints
182 second Oil Guide pipe joints
191 first Oil preserving piston cylinders
192 second Oil preserving piston cylinders
201 first end covers
202 second end covers
211 first screw thread stock pistons
212 second screw thread stock pistons
221 first cylinder bottom Oil Guide ducts
222 second cylinder bottom Oil Guide ducts
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment of the present invention is explained in detail.Following instance is used for
The present invention is illustrated, but is not limited to the scope of the present invention.
Fig. 1 is the entirety sectional view of the adjustable axial-flow pump of fixed guide vane body inlet angle of the present invention；Fig. 1 a go out for impeller
Mouth speed triangle schematic diagram；Fig. 1 b are stator aerofoil profile bone line chart；Fig. 1 c, Fig. 1 d and Fig. 1 e are respectively O in Fig. 1 b1' point, O1Point
And O1" the vane inlet speed triangle schematic diagram of the aerofoil profile bone line of point；Fig. 2 is the partial enlarged drawing of I part in Fig. 1；Fig. 3 is
The partial enlarged drawing of II part in Fig. 1；Fig. 4 is the partial enlarged drawing of III part in Fig. 1；Fig. 5 is diffuser F-F sections in Fig. 1
And the oily pipe front view of annular point；Fig. 6 is the partial sectional view of stator；Fig. 7 is the partial enlarged drawing of I part in Fig. 6；Fig. 8 is
Stator E-E section wing figures in Fig. 6；Fig. 9 is the partial enlarged drawing of wing type head in Fig. 8.
The adjustable axial-flow pump of fixed guide vane body inlet angle of the present invention, is that the leading edge of stator 3 is designed as into movable cunning
Block, makes the spacing of vane inlet angle and vane inlet while with impeller outlet change by the telescopic moving of slide block, enters
And the efficiency of pump is affected, its theoretical foundation is as follows：
As illustrated in figs. ia and ib, respectively discharge velocity triangle schematic diagram and stator aerofoil profile bone line chart, Fig. 1 b
In L be stator aerofoil profile bone line, according to impeller outlet and the inlet velocity triangle of stator 3, can try to achieve vane inlet angle is：
In formula, vm--- vane inlet axis plane velocity,D、dhRespectively impeller outer diameter and wheel hub are straight
Footpath；
vu2--- the circumferential components of liquid absolute velocity at vane inlet, typically approximately recognize and be taken as the absolute liquid stream of impeller outlet
The circumferential components of speed；
ψ --- the excretion coefficient at vane inlet, can be calculated by following formula
In formula, Su--- the thickness of circumferencial direction at vane inlet,Wherein S is true for entrance stator
Thickness；The pitch of t --- stator；zd--- the stator number of blade；
Vane inlet angle α2Need to be iterated, Approach by inchmeal is calculated.
According to said method, the vane inlet angle that can be tried to achieve under low discharge, design discharge, the operating mode of big flow is respectively
α2'、α2、α2", and the stator leading edge point position O under correspondence operating mode is found out on stator aerofoil profile bone line using the angle1'、O1、
O1", i.e. arc O1'O2For the stator aerofoil profile bone line under low flow rate condition, arc O1O2For the stator aerofoil profile bone line under design discharge operating mode,
Arc O1"O2For the stator aerofoil profile bone line under big flow operating mode；Arc O1'O1O1" it is the length change section of stator aerofoil profile bone line, namely
The motion track of stator leading edge movable slide, wherein, the O in Fig. 1 b1' point position aerofoil profile bone line vane inlet speed triangle
Shape as illustrated in figure 1 c, O in Fig. 1 b1Put the vane inlet speed triangle of aerofoil profile bone line of position as shown in Figure 1 d, O in Fig. 1 b1"
The vane inlet speed triangle of the aerofoil profile bone line of point position is as shown in fig. le.
As shown in figure 1, the adjustable axial-flow pump of fixed guide vane body inlet angle of the present invention includes blade wheel chamber 9, water-inlet horn
Mouth 8, impeller body 10, diffuser 1, pump shaft 2 and regulating system, the blade wheel chamber 9 is connected for water-inlet horn mouth 8 with diffuser 1
Place space, the regulating system includes control unit, temporary location and performance element.
The diffuser 1 is fixed on the rear end of blade wheel chamber 9, including multiple stators 3 and anemostat, the plurality of stator 3 around
The center line of pump shaft 2 is distributed in the mistake water flow passage of diffuser 1.Pump shaft 2 is rotatably mounted to the center of diffuser 1 by bearing
Shaft position.Water-inlet horn mouth 8 is connected by bolt 5, packing ring 6, nut 7 with diffuser 1, is fixed on the front end of blade wheel chamber 9.Impeller
Body 10 is fixed on the pump shaft 2 near one end of water-inlet horn mouth 8, and in the blade wheel chamber 9.
As shown in figure 1, described control unit is the part that can be controlled to oil pressure by manual operation, the control unit
Including the first control unit and the second control unit.
First control unit is disposed with the first cylinder bottom including a first movable screw thread stock piston 211, bottom
The first Oil preserving piston cylinder 191 and the first end cover 201 in Oil Guide duct 221.Wherein, 191, the first Oil preserving piston cylinder
In diffuser 1, the first screw thread stock piston 211 is located in the first Oil preserving piston cylinder 191.As shown in Fig. 2 the first Oil preserving piston
The top of cylinder 191 is sealed by the first end cover 201 and oil seal ring, is carried and the first screw thread stock on the first end cover 201
The screw thread that piston 211 matches so that the first screw thread stock piston 211 is in the cylinder body optional position of the first Oil preserving piston cylinder 191
Positioning can be realized.So, the first screw thread stock piston 211 can be moved up and down in cylinder body, oil mass in master cylinder, while by power
Pass.
Similarly, second control unit includes that second movable screw thread stock piston 212, bottom is disposed with the
The second Oil preserving piston cylinder 192 and the second end cover 202 in two cylinder bottom oil guiding hole roads 222.Wherein, the second Oil preserving piston cylinder
192 are located in diffuser 1, and the second screw thread stock piston 212 is located in the second Oil preserving piston cylinder 192.Second Oil preserving piston cylinder 192
Top sealed by the second end cover 202 and oil seal ring, carry and the second screw thread stock piston on the second end cover 202
212 screw threads for matching so that the second screw thread stock piston 212 can in the cylinder body optional position of the second Oil preserving piston cylinder 192
Realize positioning.So, the second screw thread stock piston 212 can be moved up and down in cylinder body, oil mass in master cylinder, while power is transmitted
Go out.
As shown in Fig. 3, Fig. 5, Fig. 6 and Fig. 7, the temporary location for Oil Guide pipeline, including the first pipeline and second pipe
Road, wherein the first pipeline corresponds to the first control unit, the second pipeline corresponds to the second control unit.
First pipeline includes oil guide pipe 171 on first, first annular point of oily pipe 41, first time and of oil guide pipe 161
Oil Guide duct 151 in first stator.Wherein, described first annular point oily pipe 41 is the pipe around the periphery of diffuser 1, first
The import of the oily pipe 41 of annular point passes through the first cylinder bottom Oil Guide of the bottom of 171 and first Oil preserving piston cylinder of oil guide pipe 191 on first
Duct 221 connects, and receives the oil from the first Oil preserving piston cylinder 191；The outlet of first annular point of oily pipe 41 passes through under first
Oil guide pipe 161 is connected with Oil Guide duct 151 in the first stator；Oil Guide duct 151 is arranged in the He of diffuser 1 in first stator
In stator 3, connect with stator inner carrier cylinder 14.
Similarly, second pipeline includes the oily pipe 42 of the annular point of oil guide pipe 172, second, second time Oil Guide on second
Oil Guide duct 152 in the stator of pipe 162 and second.Wherein, the oily pipe 42 of second annular point is the circle around the periphery of diffuser 1
Pipe, the import of the oily pipe 42 of the second annular point passes through the second cylinder of the bottom of 172 and second Oil preserving piston cylinder of oil guide pipe 192 on second
Bottom Oil Guide duct 222 connects, and receives the oil from the second Oil preserving piston cylinder 192；The outlet of the oily pipe 42 of the second annular point passes through
Second time oil guide pipe 162 is connected with Oil Guide duct 152 in the second stator；Oil Guide duct 152 is arranged in and leads in second stator
In leaf body 1 and stator 3, connect with stator inner carrier cylinder 14.
Wherein, on the first cylinder bottom Oil Guide duct 191 and first between oil guide pipe 171, first time oil guide pipe 161 and
Sealed using the first Oil Guide pipe joint 181 and oil seal ring between Oil Guide duct 151 in one stator；The second cylinder bottom oil guiding hole
Using the between Oil Guide duct 152 on road 192 and second between oil guide pipe 172, in second time stator of oil guide pipe 162 and second
Two Oil Guide pipe joints 182 and oil seal ring are sealed.
As shown in Figures 6 to 9, the performance element includes stator inner carrier cylinder 14 and piston slider body 12.The stator
Inner carrier cylinder 14 is located in stator 3, and bottom is connected by oil guiding hole with Oil Guide duct 151 in the first stator of temporary location.
The piston slider body 12 is movably embedded in the front end cavity of stator 3, including Slipper and piston portion.Its
In, the opposite sides of the Slipper is embedded in respectively in the corresponding chute 11 of diffuser 1, and the chute 11 is located at before stator 3
The inside and outside wall junction of water flow passage is crossed in end and diffuser 1；As shown in figure 4, Slipper and chute 11 and the front end of stator 3
Waterproof gasket 111 is provided between chamber portion, to prevent the infiltration of the water during pump operation.The front end chamber portion is referred to
The space that the Slipper of the piston slider body 12 is occupied in the front end of stator 3.The piston portion is located at living in stator
In plug cylinder 14.As shown in fig. 7, the cylinder body of stator inner carrier cylinder 14 carried out by the oil seal ring 131 of thread ending cover 13 and first it is close
Envelope, the connecting rod of piston portion passes through thread ending cover 13, and is carried out by the second oil seal ring 132 between thread ending cover 13 close
Envelope；The side of thread ending cover 13 is provided with aperture and connects with Oil Guide duct 152 in the second stator of temporary location, additionally, the end of thread
Lid 13 also has the effect that piston portion skids off cylinder body that limits.
So, the first pipeline connection of the bottom of the stator inner carrier cylinder 14 and temporary location, stator inner carrier cylinder 14
Top and temporary location the second pipeline connection；I.e. the first pipeline of temporary location introduces oil in stator inner carrier cylinder 14
Oil is introduced the upside cavity of piston portion, the second pipeline of temporary location the downside of the piston portion in stator inner carrier cylinder 14
Cavity；The pipelines of oily Jing first and the second pipeline turnover stator inner carrier cylinder 14, cause on the piston portion of stator inner carrier cylinder 14
Lower both sides produce oil pressure difference and move up and down, so as to drive piston slider body 12 to be stretched.
The adjustable axial-flow pump of fixed guide vane body inlet angle of the present invention is when in use：
To reduce vane inlet angle, the second screw thread stock piston 212 of the second control unit is adjusted, make the second oil storage live
Move on piston in plug cylinder 192；The first screw thread stock piston 211 of the first control unit is adjusted simultaneously, makes the first Oil preserving piston
Piston in cylinder 191 is moved down.So on the one hand, the oily Jing temporary locations in the first Oil preserving piston cylinder 191 of the first control unit
The first pipeline enter the bottom of stator inner carrier cylinder 14, promote piston slider body 12 to extend to the cephalad direction of stator 3 so that
The aerofoil profile bone line of stator 3 is elongated；On the other hand, in stator inner carrier cylinder 14, positioned at piston slider body 12 piston portion with
The oil in cavity between Slipper under the promotion of the piston portion of piston slider body 12, the second pipeline of Jing temporary locations
Into in the second Oil preserving piston cylinder 192 of the second control unit.
In the same manner, to increase vane inlet angle, then the first screw thread stock piston 211 of the first control unit is adjusted, makes the
Move on piston in one Oil preserving piston cylinder 191；Simultaneously the second screw thread stock piston 212 of regulation unit, makes the second oil storage
Piston in piston cylinder 192 is moved down.So on the one hand, in the middle of the oily Jing in the second Oil preserving piston cylinder 192 of the second control unit
Second pipeline of unit enters the top of stator inner carrier cylinder 14, promotes caudal directions indentation of the piston slider body 12 to stator 3,
So that the aerofoil profile bone line of stator 3 shortens；On the other hand, in stator inner carrier cylinder 14, positioned at the piston portion of piston slider body 12
Point and the first stator in oil in cavity between Oil Guide duct 151 under the promotion of the piston portion of piston slider body 12, Jing
First pipeline of temporary location is entered in the first Oil preserving piston cylinder 191 of the first control unit.
The present invention drives the adjustable leading portion of diffuser 1 using the flexible of hydraulic pressure drive control system piston slider body 12, so as to
Change vane inlet angle.For different operating modes, suitable vane inlet angle is adjusted so as to go out Liu Jiao with impeller and match, to change
Become the circular rector of fixed guide vane body, so as to improve its stress, and then reduce impact and stream and wait hydraulic loss, reduction energy loss,
Improve the operation stability of pump, the final purpose for realizing improving axial-flow pump performance.
The preferred embodiments of the present invention are the foregoing is only, not to limit the present invention, all spirit in the present invention
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (7)
1. the adjustable axial-flow pump of a kind of fixed guide vane body inlet angle, including blade wheel chamber (9), water-inlet horn mouth (8), impeller body
(10), diffuser (1) and pump shaft (2), the diffuser (1) is including multiple stators (3) and anemostat, it is characterised in that：Institute
Stating axial-flow pump also includes regulating system, and the regulating system includes control unit, temporary location and performance element；
Described control unit includes the first control unit and the second control unit；
First control unit is disposed with the first cylinder bottom and leads including the first movable screw thread stock piston (211), a bottom
The first Oil preserving piston cylinder (191) in oilhole road (221) and the first end cover (201)；First Oil preserving piston cylinder (191) position
In diffuser (1), the first screw thread stock piston (211) is in the first Oil preserving piston cylinder (191)；
Second control unit is disposed with the second cylinder bottom and leads including the second movable screw thread stock piston (212), a bottom
The second Oil preserving piston cylinder (192) in oilhole road (222) and the second end cover (202)；Second Oil preserving piston cylinder (192) position
In diffuser (1), the second screw thread stock piston (212) is in the second Oil preserving piston cylinder (192)；
The temporary location includes the first pipeline and the second pipeline；
First pipeline includes oil guide pipe (171) on first, first annular point of oily pipe (41), first time oil guide pipe (161)
With Oil Guide duct (151) in the first stator being arranged in diffuser (1) and stator (3)；Described first annular point oily pipe
(41) import passes through the first cylinder bottom Oil Guide duct of oil guide pipe (171) and the first Oil preserving piston cylinder (191) bottom on first
(221) connect, the outlet of first annular point of oily pipe (41) is by first time oil guide pipe (161) and Oil Guide duct in the first stator
(151) connect；
Second pipeline includes oil guide pipe (172) on second, the oily pipe (42) of the second annular point, second time oil guide pipe (162)
With Oil Guide duct (152) in the second stator being arranged in diffuser (1) and stator (3)；The second annular point oil pipe
(42) import passes through the second cylinder bottom Oil Guide duct of oil guide pipe (172) and the second Oil preserving piston cylinder (192) bottom on second
(222) connect, the outlet of the oily pipe (42) of the second annular point is by second time oil guide pipe (162) and Oil Guide duct in the second stator
(152) connect；
The performance element includes stator inner carrier cylinder (14) and piston slider body (12)；The stator inner carrier cylinder (14) is located at
In stator (3), bottom is connected by oil guiding hole with Oil Guide duct (151) in the first stator of temporary location；The piston slider
Body (12) is movably embedded in the front end cavity of stator (3), and it includes Slipper and piston portion；Wherein, the slide section
Point opposite sides be embedded in respectively in the corresponding chute (11) of diffuser (1), the chute (11) positioned at stator (3) front end with lead
The inside and outside wall junction of water flow passage is crossed in leaf body (1)；The piston portion is located in stator inner carrier cylinder (14), stator inner carrier
The side of the thread ending cover (13) of cylinder (14) is provided with aperture, connects with Oil Guide duct (152) in the second stator of temporary location.
2. the adjustable axial-flow pump of fixed guide vane body inlet angle as claimed in claim 1, it is characterised in that：The blade wheel chamber
(9) it is water-inlet horn mouth (8) and diffuser (1) junction space, the diffuser (1) is fixed on the rear end of blade wheel chamber (9), pump
Axle (2) is rotatably mounted to the cental axial position of diffuser (1) by bearing, and water-inlet horn mouth (8) is with diffuser (1) even
Connect, be fixed on the front end of blade wheel chamber (9), impeller body (10) is fixed on the pump shaft (2) near water-inlet horn mouth (8)
End, and in the blade wheel chamber (9).
3. the adjustable axial-flow pump of fixed guide vane body inlet angle as claimed in claim 1 or 2, it is characterised in that：Described first
The top of Oil preserving piston cylinder (191) is sealed by the first end cover (201) and oil seal ring, and the first end cover is carried on (201)
The screw thread matched with the first screw thread stock piston (211)；The top of the second Oil preserving piston cylinder (192) is by the second sealed end
Lid (202) and oil seal ring sealing, with the spiral shell matched with the second screw thread stock piston (212) on the second end cover (202)
Line.
4. the adjustable axial-flow pump of fixed guide vane body inlet angle as claimed in claim 1 or 2, it is characterised in that：Described first
The oily pipe (41) of annular point and the oily pipe (42) of the second annular point are respectively around the pipe of diffuser (1) periphery.
5. the adjustable axial-flow pump of fixed guide vane body inlet angle as claimed in claim 1 or 2, it is characterised in that：Described first
On cylinder bottom Oil Guide duct (221) and first between oil guide pipe (171), first time oil guide pipe (161) and oil guiding hole in the first stator
Sealed using the first Oil Guide pipe joint (181) and oil seal ring between road (151)；The second cylinder bottom Oil Guide duct (222) with
Using the between Oil Guide duct (152) on second between oil guide pipe (172), in second time oil guide pipe (162) and the second stator
Two Oil Guide pipe joints (182) and oil seal ring are sealed.
6. the adjustable axial-flow pump of fixed guide vane body inlet angle as claimed in claim 1 or 2, it is characterised in that：The stator
The cylinder body of inner carrier cylinder (14) is sealed by thread ending cover (13) and the first oil seal ring (131), the connection of piston portion
Bar passes through thread ending cover (13), and is sealed by the second oil seal ring (132) between thread ending cover (13).
7. the adjustable axial-flow pump of fixed guide vane body inlet angle as claimed in claim 1 or 2, it is characterised in that：The slide block
Waterproof gasket (111), the front end chamber portion are provided between part and the front end chamber portion of chute (11) and stator (3)
Refer to the space that the Slipper of the piston slider body (12) in the front end of stator (3) is occupied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510223771.1A CN104776061B (en) | 2015-05-05 | 2015-05-05 | Fixed guide vane body inlet angle adjustable axial flow pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510223771.1A CN104776061B (en) | 2015-05-05 | 2015-05-05 | Fixed guide vane body inlet angle adjustable axial flow pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104776061A CN104776061A (en) | 2015-07-15 |
| CN104776061B true CN104776061B (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510223771.1A Expired - Fee Related CN104776061B (en) | 2015-05-05 | 2015-05-05 | Fixed guide vane body inlet angle adjustable axial flow pump |
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| CN (1) | CN104776061B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113153821B (en) * | 2021-04-28 | 2022-04-26 | 江苏大学 | Flow self-adaptation stator adjusting device based on hydraulic drive |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09310695A (en) * | 1996-05-20 | 1997-12-02 | Mitsubishi Heavy Ind Ltd | Mixed flow pump and axial flow pump |
| US7108569B2 (en) * | 2003-03-19 | 2006-09-19 | Cornell Donald E | Axial flow pump or marine propulsion device |
| CN101709706A (en) * | 2009-09-17 | 2010-05-19 | 武汉大学 | Guide vane adjustable axial flow pump |
| CN103557186A (en) * | 2013-11-14 | 2014-02-05 | 武汉大学 | Adjustable axial flow pump with front guide vanes |
| CN103711726B (en) * | 2013-12-04 | 2016-02-24 | 中国农业大学 | The through-flow pump that part of guide vane body is adjustable |
| CN204163995U (en) * | 2014-10-23 | 2015-02-18 | 扬州大学 | A kind of two-way management of replaceable stator |
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2015
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| CN104776061A (en) | 2015-07-15 |
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Granted publication date: 20170510 Termination date: 20190505 |