CN210509713U - Novel water pump guide vane impeller structure - Google Patents

Abstract

The utility model relates to a novel water pump stator impeller structure, including the stator, the lower part is equipped with the impeller in the stator, the impeller includes impeller front shroud, the impeller blade, the impeller spacer bush, the impeller back shroud, impeller front shroud, impeller back shroud laser welding respectively is on the impeller blade, the impeller blade is along circumference interval arrangement, the impeller back shroud welding is on the impeller spacer bush, upper portion is equipped with the stator in the stator, the stator is located the impeller top, the stator includes stator guide blade, bearing, internal stay, the internal stay welding is on the bearing, bearing and impeller spacer bush are arranged with one heart, the welding has the stator guide blade along circumference interval arrangement on the internal stay, the welding of internal stay bottom has the lower cover, the lower cover sets up in the impeller periphery, the inlet end of impeller blade, the guide blade all sets up into the cutting edge shape; the utility model discloses can reduce the striking loss of imported rivers and blade, improve hydraulic efficiency and cavitation performance, the noise reduction has solved that blade import hydraulic loss is big, leads to the not high scheduling problem of efficiency.

Description

Novel water pump guide vane impeller structure

[ technical field ]

The utility model belongs to the technical field of the water pump technique and specifically relates to a novel water pump stator impeller structure.

[ background art ]

At present, conventional water pump impeller and stator divide into casting and punching press formula, and casting impeller blade and stator guide vane inlet end are all relatively thicker usually, and punching press pump impeller blade and stator guide vane also have the thickness of panel, so, impeller blade and stator guide vane import department, import rivers and blade formation striking and impact cause water pump hydraulic loss big, and efficiency is not high, causes rivers vortex, takes off a class, noise etc. easily.

[ contents of utility model ]

The utility model aims at solving foretell not enough and provide a novel water pump stator impeller structure, can reduce the striking loss of import rivers and blade, improve hydraulic efficiency and cavitation performance, the noise reduction has solved that blade import hydraulic loss is big, leads to the not high scheduling problem of efficiency.

The novel guide vane impeller structure of the water pump comprises an impeller front cover plate 1, impeller blades 2, an impeller spacer 3, an impeller rear cover plate 4, a guide vane body 5, a lower cover 6, a bearing 7, an inner support 8 and guide vane guide vanes 9, wherein an impeller is arranged at the lower part in the guide vane body 5, the impeller comprises the impeller front cover plate 1, the impeller blades 2, the impeller spacer 3 and the impeller rear cover plate 4, the impeller front cover plate 1 and the impeller rear cover plate 4 are respectively welded on the impeller blades 2 through laser, the impeller blades 2 are arranged along the circumferential direction at intervals, the impeller rear cover plate 4 is welded on the impeller spacer 3, guide vanes are arranged at the upper part in the guide vane body 5 and are positioned above the impeller, the guide vanes comprise the guide vane blades 9, the bearing 7 and the inner support 8, the inner support 8 is welded on the bearing 7, and the bearing 7 and the impeller spacer 3 are arranged concentrically, the welding has the stator guide vane 9 of following circumference interval arrangement on the internal stay 8, the welding of 8 bottom of internal stay has lower cover 6, lower cover 6 sets up in the impeller periphery, the blade shape is all set to impeller blade 2, stator guide vane 9's entrance point.

Further, the impeller blade 2 includes an impeller blade cutting edge inlet 11 and an impeller space curved surface blade 12, the impeller space curved surface blade 12 is in a curved surface shape, the impeller space curved surface blade 12 is manufactured into the impeller blade cutting edge inlet 11 along the inlet edge, the impeller blade cutting edge inlet 11 is in a cutting edge shape, and the impeller blade cutting edge inlet 11 and the impeller space curved surface blade 12 are in smooth transition.

Further, stator guide vane 9 is including leading blade cutting edge import 13 and stator space curved surface blade 14, stator space curved surface blade 14 is the curved surface shape, stator space curved surface blade 14 makes into along the import edge and leads blade cutting edge import 13, it is the cutting edge shape to lead blade cutting edge import 13, lead blade cutting edge import 13 and stator space curved surface blade 14 rounding off.

Further, the impeller front cover plate 1, the impeller rear cover plate 4, the lower cover 6 and the inner support 8 are all circular.

Further, the guide vane body 5 is cylindrical, the inlet end of the guide vane body 5 is semi-closed with a through hole in the center, and the outlet end of the guide vane body 5 is open.

Compared with the prior art, the utility model, novel structure, simple to through reasonable structural layout, and make into the cutting edge shape with impeller blade and stator guide vane entrance point, with the smooth cutting rivers of guide, thereby reduce the striking loss of import rivers and blade, improve hydraulic efficiency and cavitation performance, the noise reduction has solved that blade import hydraulic loss is big, leads to the not high scheduling problem of efficiency, is worth popularizing and applying.

[ description of the drawings ]

Fig. 1 is a schematic view of the internal structure of the present invention;

fig. 2 is an external structural view of the present invention;

FIG. 3 is a schematic structural view of an impeller of the present invention;

FIG. 4 is a schematic structural view of an impeller blade according to the present invention;

FIG. 5 is a schematic structural view of a guide vane of the present invention;

in the figure: 1. the impeller comprises an impeller front cover plate 2, impeller blades 3, an impeller spacer bush 4, an impeller rear cover plate 5, a guide blade body 6, a lower cover 7, a bearing 8, an inner support 9, guide blade guide blades 11, an impeller blade cutting edge inlet 12, impeller space curved surface blades 13, a guide blade cutting edge inlet 14 and guide blade space curved surface blades.

[ detailed description of the invention ]

The invention is further described below with reference to the accompanying drawings:

as shown in the attached drawings, the utility model provides a novel water pump guide vane impeller structure, which comprises an impeller front cover plate 1, impeller blades 2, an impeller spacer 3, an impeller rear cover plate 4, a guide vane body 5, a lower cover 6, a bearing 7, an inner support 8 and guide vane guide vanes 9, wherein the lower part in the guide vane body 5 is provided with an impeller, the impeller comprises the impeller front cover plate 1, the impeller blades 2, the impeller spacer 3 and the impeller rear cover plate 4, the impeller front cover plate 1 and the impeller rear cover plate 4 are respectively welded on the impeller blades 2 by laser, the impeller blades 2 are arranged along the circumferential direction at intervals, the impeller rear cover plate 4 is welded on the impeller spacer 3, the upper part in the guide vane body 5 is provided with guide vanes, the guide vanes are positioned above the impeller, the guide vanes comprise guide vane guide vanes 9, a bearing 7 and an inner support 8, the inner support 8 is welded on the bearing 7, the bearing 7 and the impeller spacer 3 are arranged concentrically, the guide vane guide vanes, the bottom end of the inner support 8 is welded with a lower cover 6, the lower cover 6 is arranged on the periphery of the impeller, and the inlet ends of the impeller blades 2 and the guide vane guide blades 9 are both arranged in a blade shape; the impeller front cover plate 1, the impeller rear cover plate 4, the lower cover 6 and the inner support 8 are all in a circular ring shape, the guide vane body 5 is in a cylindrical barrel shape, the inlet end of the guide vane body 5 is in a semi-closed shape with a through hole in the center, and the outlet end of the guide vane body 5 is open.

As shown in fig. 4, the impeller blade 2 includes an impeller blade cutting edge inlet 11 and an impeller space curved surface blade 12, the impeller space curved surface blade 12 is in a curved surface shape, the impeller space curved surface blade 12 is manufactured into the impeller blade cutting edge inlet 11 along the inlet edge, the impeller blade cutting edge inlet 11 is in a cutting edge shape, and the impeller blade cutting edge inlet 11 and the impeller space curved surface blade 12 are in smooth transition; the blade of the impeller is manufactured into a blade-shaped inlet along the inlet edge and is in smooth transition with the space curved surface blade, so that the impact loss of the water flow at the inlet of the impeller and the blade is reduced, the hydraulic loss is reduced, the hydraulic efficiency and the cavitation performance are improved, and the noise is reduced.

As shown in fig. 5, the guide vane 9 includes a guide vane blade inlet 13 and a guide vane spatial curved surface blade 14, the guide vane spatial curved surface blade 14 is in a curved surface shape, the guide vane spatial curved surface blade 14 is manufactured into a guide vane blade inlet 13 along the inlet edge, the guide vane blade inlet 13 is in a blade shape, and the guide vane blade inlet 13 and the guide vane spatial curved surface blade 14 are in smooth transition; the guide vane is manufactured into a blade-shaped inlet along the inlet edge and is in smooth transition with the guide vane space curved surface vane, so that the impact loss of guide vane inlet water flow and the vane is reduced, the hydraulic loss is reduced, the hydraulic efficiency and the cavitation performance are improved, and the noise is reduced.

In the utility model, the front cover plate 1 and the rear cover plate 4 of the impeller are respectively welded on the blades 2 of the impeller by laser, and the rear cover plate 4 of the impeller is welded on the spacer bush 3 of the impeller to form an integral impeller; the guide vane body 5, the lower cover 6, the inner support 8, the guide vane 9 and other parts are welded into an integral guide vane; the impeller is driven by the pump shaft to rotate at a high speed, the impeller blades 2 force the liquid to rotate, so that the liquid is thrown out to the periphery under the action of centrifugal force, and a vacuum liquid inflow is formed at an impeller inlet, so that water is continuously supplied; the liquid thrown out by the impeller is collected by the guide vane and is sent to the outlet of the next-stage impeller or pump; the inlet ends of the impeller blades 2 and the guide vane guide blades 9 are made into a blade shape to guide and smoothly cut water flow, so that the phenomena of vortex, flow shedding and the like are reduced, the hydraulic efficiency and the cavitation performance are improved, and the noise of the water pump is reduced.

The present invention is not limited by the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and are all included in the protection scope of the present invention.

Claims (5)

1. The utility model provides a novel water pump stator impeller structure which characterized in that: comprises an impeller front cover plate (1), impeller blades (2), an impeller spacer bush (3), an impeller rear cover plate (4), a guide blade body (5), a lower cover (6), a bearing (7), an inner support (8) and guide blade guide blades (9), wherein an impeller is arranged at the inner lower part of the guide blade body (5), the impeller comprises the impeller front cover plate (1), the impeller blades (2), the impeller spacer bush (3) and the impeller rear cover plate (4), the impeller front cover plate (1) and the impeller rear cover plate (4) are respectively welded on the impeller blades (2) in a laser mode, the impeller blades (2) are arranged at intervals along the circumferential direction, the impeller rear cover plate (4) is welded on the impeller spacer bush (3), guide blades are arranged at the inner upper part of the guide blade body (5), the guide blades are positioned above the impeller, the guide blades comprise the guide blades (9), the bearing (7) and the inner support (8) are welded on the bearing (7), bearing (7) and impeller spacer (3) are arranged with one heart, the welding has stator guide vane (9) along circumference interval arrangement on internal stay (8), the welding has lower cover (6) in internal stay (8) bottom, lower cover (6) set up in the impeller periphery, the entrance point of impeller blade (2), stator guide vane (9) all sets the cutting edge shape.

2. The novel water pump guide vane impeller structure of claim 1, characterized in that: impeller blade (2) include impeller blade cutting edge import (11) and wheel space curved surface blade (12), wheel space curved surface blade (12) are the curved surface shape, wheel space curved surface blade (12) are made into impeller blade cutting edge import (11) along the import edge, impeller blade cutting edge import (11) are the cutting edge shape, impeller blade cutting edge import (11) and wheel space curved surface blade (12) rounding off.

3. The novel water pump guide vane impeller structure of claim 2, characterized in that: stator guide vane (9) are including guide vane cutting edge import (13) and stator space curved surface blade (14), stator space curved surface blade (14) are the curved surface shape, stator space curved surface blade (14) are made into guide vane cutting edge import (13) along the import edge, guide vane cutting edge import (13) are the cutting edge shape, guide vane cutting edge import (13) and stator space curved surface blade (14) rounding off.

4. A novel water pump guide vane impeller structure as claimed in claim 1, 2 or 3, characterized in that: the impeller front cover plate (1), the impeller rear cover plate (4), the lower cover (6) and the inner support (8) are all circular.

5. The novel water pump guide vane impeller structure of claim 4, characterized in that: the guide vane body (5) is cylindrical, the inlet end of the guide vane body (5) is arranged to be semi-closed with a through hole in the center, and the outlet end of the guide vane body (5) is arranged to be open.

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