CN207935104U - A kind of axial-flow pump unit - Google Patents

Abstract

The utility model discloses a kind of axial-flow pump units, including mounting plate, communicating pipe, top plate and double speed salient-pole synchronous motor, it is fixedly connected with top plate at the top of the mounting plate, at the top of top plate be installed communicating pipe, communicating pipe is all fixedly connected with water inlet pipe close to the both sides of top plate one end, the both sides of communicating pipe above water inlet pipe are all fixedly connected with outlet pipe, vertical-type axial-flow pump is installed inside the communicating pipe, communicating pipe, one end far from top plate was fixedly connected with supporting sleeve, the top of supporting sleeve is equipped with double speed salient-pole synchronous motor by bolt, and the output end of double speed salient-pole synchronous motor is fixedly connected with drive shaft, the one end of drive shaft far from double speed salient-pole synchronous motor is fixedly connected by transmission shaft with vertical-type axial-flow pump input terminal.The utility model double speed salient-pole synchronous motor is mating by drive shaft and transmission shaft and vertical-type axial-flow pump direct connection, stabilization of speed, good reliability, and switching is fast, meanwhile, improve unit operation stability.

Description

A kind of axial-flow pump unit

Technical field

The utility model is related to axial-flow pump technical field, specially a kind of axial-flow pump unit.

Background technology

The water drainage operating mode of riverside hinge pumping plant is more important and run time is longer, therefore is positive with operating mode of draining flooded fields and is setting Greater efficiency is obtained under meter lift, allows for the inefficiency under draining and diversion operating condition design lift in this way.Single-speed motor is arranged Efficiency under flooded operating condition design lift can reach 70.4%, and efficiency of the operating mode under rated lift that drains and drain flooded fields is only 53.5% and 57.5%, difference 16.9% or so, but flow at this time is again well beyond design discharge 30m3/s.

But with river pollution getting worse, often adrift bulky grain, long plastic optical fibre, fiber crops are fine in Forebay of Pumping Station The sundries such as dimension, when pumping plant, which is switched on, to be run, these sundries just enter with flow inside pumping plant water inlet structure, hence into axis stream In impeller of pump room, long sundries flexible easily winds axial flow pump blade inner, and the rigid sundries of bulky grain then can directly hit axial-flow pump leaf Wheel reduces axial-flow pump device hydraulic efficiency, increases the output power of axial-flow pump motor, deteriorates the running environment of Axial Flow Pump Station, sternly Important place will cause axial-flow pump unit to generate vibration；Meanwhile pumping plant in low lift section since flow velocity is big, be also easy to produce hydraulic vibration, and The pumping plant is run in low lift section in most cases, therefore there may be safety problems for the pump of single speed operation.

Utility model content

The purpose of this utility model is to provide a kind of axial-flow pump units, to solve mentioned above in the background art ask Topic.

To achieve the above object, the utility model provides the following technical solutions：A kind of axial-flow pump unit, including mounting plate, The top of communicating pipe, top plate and double speed salient-pole synchronous motor, the mounting plate is uniformly equipped with dampening assembly, and dampening assembly is remote One end from mounting plate is fixedly connected with top plate bottom respectively by bolt, and the center position at the top of top plate is equipped with connection Pipe, is all fixedly connected with water inlet pipe, the one end of the water inlet pipe far from communicating pipe is all hinged communicating pipe close to the both sides of top plate one end There is the first protective cover, the first filter box is installed on the water inlet pipe on the inside of the first protective cover, the communicating pipe above the water inlet pipe Both sides are all fixedly connected with outlet pipe, water flow sensor are all equipped on outlet pipe and water inlet pipe, and outlet pipe is far from connection One end of pipe is all hinged with the second protective cover, and the second filter box, the water inlet are all equipped on the outlet pipe on the inside of the second protective cover Vertical-type axial-flow pump is installed inside communicating pipe between pipe and outlet pipe, the output end of vertical-type axial-flow pump is fixedly connected with shaft, The one end of shaft far from vertical-type axial-flow pump is fixedly connected with communicating pipe inner bottom, and mounting base is fixed in shaft, mounting base Outside be uniformly fixedly connected with cutting edge, the communicating pipe one end far from top plate be fixedly connected with supporting sleeve, supporting sleeve The top of pipe is equipped with double speed salient-pole synchronous motor by bolt, and the output end of double speed salient-pole synchronous motor is fixedly connected There is drive shaft, the one end of drive shaft far from double speed salient-pole synchronous motor is fixed by transmission shaft and vertical-type axial-flow pump input terminal to be connected It connects, uniformly annular is equipped with main exhaust hole to the middle position on the outside of the double speed salient-pole synchronous motor, main exhaust hole both sides Auxiliary venthole is all equipped on double speed salient-pole synchronous motor, and on the double speed salient-pole synchronous motor above main exhaust hole uniformly Annular is equipped with air admission hole.

Preferably, four angular positions of the mounting plate are all equipped with location hole.

Preferably, strainer is all detachably installed in the inside of the first filter box and the second filter box.

Preferably, connecting rod, and the interposition at the top of outlet pipe are all fixedly connected between the water inlet pipe and outlet pipe The place of setting all is welded with drop handle.

Preferably, the one end of the cutting edge far from shaft extends to inside water inlet pipe.

Compared with prior art, the utility model has the beneficial effects that：The axial-flow pump unit, double speed salient-pole synchronous motor Mating, stabilization of speed, good reliability, the efficiency under two kinds of speed by drive shaft and transmission shaft and vertical-type axial-flow pump direct connection Height, exciting current is small, and easy-to-connect, and switching is fast, and control is simple, meanwhile, unit operation stability is improved, and motor exists Rotating speed is stablized under high speed and low speed, good reliability, anti-by being respectively set first in the opening of water inlet pipe and outlet pipe Shield and the second protective cover, and is respectively set on the water inlet pipe and outlet pipe on the inside of the first protective cover and the second protective cover One filter box and the second filter box can be hit and be caused the damage of axial-flow pump by sundries winding, sundries to avoid axial-flow pump impeller, to Achieve the purpose that improve axial-flow pump hydraulic efficiency and axial-flow pump anti-cavitation performance, extends the service life of axial-flow pump, in addition, passing through Cutting edge is fixedly connected with by mounting base in the shaft of vertical axial-flow pump output terminal, has the function of Self cleavage, prevents axis stream Impeller of pump is wound by long fibre flexibility sundries, blocking-free performance, is further extended the service life of axial-flow pump impeller, is reduced impeller Maintenance cost, the utility model can effectively mitigate waterpower by being uniformly arranged dampening assembly between mounting plate and top plate Vibrate the damage to axial-flow pump unit, the service life of extending shaft flow pump machine group.

Description of the drawings

Fig. 1 is the main structure diagram of the utility model；

Fig. 2 is the internal structure schematic diagram of the utility model；

Fig. 3 is the partial structural diagram of the utility model.

In figure：1- water inlet pipes；2- water flow sensors；3- second filters box；4- drop handles；5- outlet pipes；6- supporting sleeves；7- Double speed salient-pole synchronous motor；8- communicating pipes；The second protective covers of 9-；10- connecting rods；The first protective covers of 11-；12- first filters box； 13- top plates；14- mounting plates；15- dampening assemblies；16- shafts；17- transmission shafts；18- drive shafts；19- vertical-type axial-flow pumps；20- pacifies Fill seat；21- cutting edges；22- assists venthole；23- air admission holes；24- main exhausts hole.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

- 3 are please referred to Fig.1, a kind of embodiment provided by the utility model：A kind of axial-flow pump unit, including mounting plate 14, company Four angular positions of siphunculus 8, top plate 13 and double speed salient-pole synchronous motor 7, mounting plate 14 are all equipped with location hole, mounting plate 14 Top dampening assembly 15 is uniformly installed, the one end of dampening assembly 15 far from mounting plate 14 by bolt respectively with 13 bottom of top plate Portion is fixedly connected, and the center position at the top of top plate 13 is equipped with communicating pipe 8, communicating pipe 8 both sides close to 13 one end of top plate All it is fixedly connected with water inlet pipe 1, the one end of water inlet pipe 1 far from communicating pipe 8 is all hinged with the first protective cover 11, in the first protective cover 11 First filter box 12 is installed on the water inlet pipe 1 of side, the both sides of the communicating pipe 8 of 1 top of water inlet pipe are all fixedly connected with outlet pipe 5, Connecting rod 10 is all fixedly connected between water inlet pipe 1 and outlet pipe 5, and the middle position at 5 top of outlet pipe is all welded with and carries Water flow sensor 2 is all installed, and the one end of outlet pipe 5 far from communicating pipe 8 is all hinged on ring 4, outlet pipe 5 and water inlet pipe 1 There is the second protective cover 9, the second filter box 3 is all installed on the outlet pipe 5 of second protective cover, 9 inside, the first filter box 12 and second is filtered Strainer is all detachably installed in the inside of box 3, and vertical-type axial-flow pump is equipped with inside the communicating pipe 8 between water inlet pipe 1 and outlet pipe 5 19, the output end of vertical-type axial-flow pump 19 is fixedly connected with shaft 16, the one end of shaft 16 far from vertical-type axial-flow pump 19 and communicating pipe 8 Inner bottom is fixedly connected, and mounting base 20 is fixed in shaft 16, and the outside of mounting base 20 is uniformly fixedly connected with cutting edge 21, the one end of cutting edge 21 far from shaft 16 extends to inside water inlet pipe 1, communicating pipe 8 one end far from top plate 13 be fixedly connected There is supporting sleeve 6, the top of supporting sleeve 6 is equipped with double speed salient-pole synchronous motor 7 by bolt, and double speed salient pole synchronizes electricity The output end of motivation 7 is fixedly connected with drive shaft 18, and the one end of drive shaft 18 far from double speed salient-pole synchronous motor 7 passes through transmission Axis 17 is fixedly connected with 19 input terminal of vertical-type axial-flow pump, and the middle position in 7 outside of double speed salient-pole synchronous motor is uniformly annular Equipped with main exhaust hole 24, auxiliary venthole 22, and main row are all equipped on the double speed salient-pole synchronous motor 7 of 24 both sides of main exhaust hole Uniformly annular is equipped with air admission hole 23 on the double speed salient-pole synchronous motor 7 of 24 top of stomata.

Operation principle：In use, by 14 fixing axle flow pump machine group position of mounting plate, double speed salient-pole synchronous motor 7 is logical Overdrive axis 18 and transmission shaft 17 and 19 direct connection of vertical-type axial-flow pump it is mating, stabilization of speed, improve unit operation stability, work When, the first protective cover 11 and first of water inlet pipe 1 filters the strainer filtering sundries inside box 12, and shaft 16 is in the same of rotation When, it drives cutting edge 21 highly to rotate, has the function of Self cleavage, prevent 19 impeller of vertical-type axial-flow pump from being twined by long fibre flexibility sundries Around, the service life of extending shaft flow pump machine group, in addition, dampening assembly 15 is uniformly arranged between mounting plate 14 and top plate 13, it can The effective damage for mitigating hydraulic vibration to axial-flow pump unit, the service life of further extending shaft flow pump machine group.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this practicality is new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing in the equivalent requirements of the claims will be fallen All changes in justice and range are embraced therein.Any reference numeral in claim should not be considered as limitation Involved claim.

Claims (5)

1. a kind of axial-flow pump unit, including mounting plate (14), communicating pipe (8), top plate (13) and double speed salient-pole synchronous motor (7), it is characterised in that：The top of the mounting plate (14) is uniformly equipped with dampening assembly (15), and dampening assembly (15) is far from peace One end of loading board (14) is fixedly connected with top plate (13) bottom respectively by bolt, and the center position peace at the top of top plate (13) Equipped with communicating pipe (8), communicating pipe (8) is all fixedly connected with water inlet pipe (1), the water inlet pipe close to the both sides of top plate (13) one end (1) one end far from communicating pipe (8) is all hinged with the first protective cover (11), on the water inlet pipe (1) on the inside of the first protective cover (11) First filter box (12) is installed, the both sides of the communicating pipe (8) above the water inlet pipe (1) are all fixedly connected with outlet pipe (5), go out Water flow sensor (2) is all installed, and the one end of outlet pipe (5) far from communicating pipe (8) is all on water pipe (5) and water inlet pipe (1) Be hinged with the second protective cover (9), the second filter box (3) be all installed on the outlet pipe (5) on the inside of the second protective cover (9), it is described into Vertical-type axial-flow pump (19) is installed inside communicating pipe (8) between water pipe (1) and outlet pipe (5), vertical-type axial-flow pump (19) it is defeated Outlet is fixedly connected with shaft (16), and one end and communicating pipe (8) inner bottom far from vertical-type axial-flow pump (19) of shaft (16) are solid Fixed connection, and mounting base (20) is fixed in shaft (16), the outside of mounting base (20) is uniformly fixedly connected with cutting edge (21), The one end of the communicating pipe (8) far from top plate (13) is fixedly connected with supporting sleeve (6), and the top of supporting sleeve (6) passes through spiral shell Bolt is equipped with double speed salient-pole synchronous motor (7), and the output end of double speed salient-pole synchronous motor (7) is fixedly connected with drive shaft (18), the one end of drive shaft (18) far from double speed salient-pole synchronous motor (7) passes through transmission shaft (17) and vertical-type axial-flow pump (19) Input terminal is fixedly connected, and uniformly annular is equipped with main exhaust hole to the middle position on the outside of the double speed salient-pole synchronous motor (7) (24), auxiliary venthole (22), and main exhaust hole are all equipped on the double speed salient-pole synchronous motor (7) of main exhaust hole (24) both sides (24) uniformly annular is equipped with air admission hole (23) on the double speed salient-pole synchronous motor (7) above.

2. a kind of axial-flow pump unit according to claim 1, it is characterised in that：Four Angle Positions of the mounting plate (14) Place is all equipped with location hole.

3. a kind of axial-flow pump unit according to claim 1, it is characterised in that：The first filter box (12) and the second filter box (3) inside is all detachably installed by strainer.

4. a kind of axial-flow pump unit according to claim 1, it is characterised in that：The water inlet pipe (1) and outlet pipe (5) it Between be all fixedly connected with connecting rod (10), and the middle position at the top of outlet pipe (5) is all welded with drop handle (4).

5. a kind of axial-flow pump unit according to claim 1, it is characterised in that：The cutting edge (21) is far from shaft (16) To extend to water inlet pipe (1) internal for one end.