CN213478664U

CN213478664U - Circulating water pump

Info

Publication number: CN213478664U
Application number: CN202021363655.2U
Authority: CN
Inventors: 许建林
Original assignee: Suzhou Tianfa Machinery Co ltd
Current assignee: Suzhou Tianfa Machinery Co ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-06-18
Anticipated expiration: 2030-07-13

Abstract

The utility model relates to a circulating water pump, including pump case and rotating electrical machines, be equipped with spiral case diversion chamber and delivery port in the pump case, the rotating electrical machines is connected with the pump shaft with impeller synchronous revolution, the impeller is equipped with the stator of coaxial setting outward, the rotating electrical machines is equipped with the motor cover outward, be equipped with the grease chamber between motor cover and the pump case, turbine diversion chamber bottom is equipped with the adapter sleeve, the adapter sleeve bottom is equipped with the base, be equipped with the teeter chamber between adapter sleeve and the base, be equipped with the dispersion impeller with pump shaft synchronous revolution in the teeter chamber, the base bottom is equipped with the water inlet, adopt split type motor cover, the pump case, adapter sleeve and base be convenient for the runner take shape and cause overload or burn and lose, bearing support dynamic balance is stable, reduce the vibration noise, avoid medium agglomeration and jam through the teeter chamber dispersion, through impeller and stator centrifugal pumping, circulating water pump Or the use requirement of the mixed medium of water and fiber substances and the like.

Description

Circulating water pump

Technical Field

The utility model relates to a water pump, especially a circulating water pump.

Background

The circulating water pump is widely applied to various occasions needing to circularly provide media, such as raw water conveying, backflow sewage treatment, flood discharge, irrigation, fire protection, condensation, spinning, printing and dyeing, papermaking, chemical pulp conveying and the like, usually does not need to provide too much pressure, and mainly provides circulating media with certain flow to meet the circulating conveying or cooling requirements of a system. The circulating water pump in the prior art generally comprises a pump shell, a rotating motor, an impeller and other components, wherein the impeller is driven to rotate by a direct current or alternating current motor through a pump shaft, the impeller in the pump generates centrifugal force when rotating at high speed, water is pumped into the pump shell to generate certain pressure for water to be pumped out from the pump outlet, when a circulating medium is a suspension with suspended particles or a mixed medium such as water and fiber substances, the impeller or a flow channel is easily blocked by material agglomeration to influence overload damage of the motor, the motor can be burnt under severe conditions, the service life of the water pump is short, equipment is caused to be frequently stopped and repaired, and the use requirement is difficult to meet.

SUMMERY OF THE UTILITY MODEL

The utility model aims at prior art's defect, provide a circulating water pump, adopt split type motor cover, pump case, adapter sleeve and base runner of being convenient for to take shape, avoid the medium to reunite the jam through the teeter chamber dispersion, through impeller and stator centrifugal pumping, improved circulating water pump's life and efficiency, especially satisfied the demand of use when the circulating medium is for having suspension particles's mixed media such as suspension thing, or water and fibrous material.

The utility model discloses a realize through following technical scheme:

a circulating water pump comprises a pump shell and a rotating motor, wherein a volute diversion chamber and a water outlet communicated with the volute diversion chamber are arranged in the pump shell, an impeller is arranged in the volute diversion chamber, a motor shaft of the rotating motor is connected with a pump shaft which penetrates through the pump shell and rotates synchronously with the impeller, a motor cover connected with the top of the pump shell is arranged outside the rotating motor, an oil chamber is arranged between the motor cover and the pump shell, an oil plug is arranged on one side of the oil chamber, a bearing which is positioned between the motor cover and the pump shell and sleeved outside the pump shaft is arranged in the oil chamber, and a sealing ring sleeved outside the pump shaft is arranged between the bearing and the top of the;

a guide vane which is coaxial with the impeller is arranged outside the impeller, a first convex ring is arranged at the top of the impeller, a first annular groove which is in clearance fit with the outer wall of the first convex ring is arranged on the guide vane, at least one positioning opening is arranged on the outer side of the top of the guide vane, and a positioning block which is in clearance fit with the positioning opening is arranged in the pump shell;

the volute diversion chamber is characterized in that a connecting sleeve which is connected with the pump shell and is in clearance fit with the bottoms of the guide vanes and the impeller is arranged at the bottom of the volute diversion chamber, a base is arranged at the bottom of the connecting sleeve, connecting flanges are arranged between the bottom of the pump shell and the connecting sleeve and between the connecting sleeve and the base, second annular grooves are arranged at the bottoms of the pump shell and the connecting sleeve, and second convex rings in clearance fit with the second annular grooves are arranged at the tops of the connecting sleeve and the base;

a stirring chamber is arranged between the connecting sleeve and the base, a dispersion disc which rotates synchronously with the pump shaft is arranged in the stirring chamber, and a water inlet and a plurality of support legs which are communicated with the stirring chamber are arranged at the bottom of the base.

The utility model has the advantages that:

(1) the split type motor cover, the pump shell, the connecting sleeve and the base are adopted, the guide vane is in clearance fit with the first convex ring through the first annular groove, the positioning block is in clearance fit with the positioning opening for positioning, the top of the connecting sleeve is in clearance fit with the impeller and the guide vane to realize the installation of the impeller and the guide vane, the pump shell and the base are connected with the connecting sleeve through the connecting flange to form a volute diversion chamber and a stirring chamber, the runner forming is facilitated, the bearing support dynamic balance is stable, the vibration noise is reduced, and the dismounting connection operation is;

(2) the water is fed into the stirring chamber from the water inlet, the pump shaft drives the dispersion disc to rotate and break up the circulating medium in the stirring chamber, the phenomenon that the impeller and a flow channel are blocked by medium agglomeration to cause overload and even burning loss of a rotating motor is avoided, the impeller generates centrifugal force when rotating at high speed and pumps the medium into the external guide vane, the flow speed is reduced to generate annular quantity and the annular quantity is uniformly diffused into the volute diversion chamber and discharged from a water outlet, the service life and the energy efficiency of the circulating water pump are prolonged, and the use requirement of the circulating medium when the circulating medium is a suspension with suspended particles or a mixed medium of water, fiber substances and the like is particularly.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a cross-sectional view in the direction AA of fig. 2.

The labels in the figure are: pump case 1 and rotating electrical machines 2, spiral case diversion chamber 3, delivery port 4, impeller 5, motor shaft 6, pump shaft 7, motor cover 8, grease chamber 9, oil plug 10, bearing 11, sealing washer 12, stator 13, first bulge loop 14, first annular 15, locating port 16, locating piece 17, adapter sleeve 18, base 19, flange 20, second annular 21, second bulge loop 22, teeter chamber 23, dispersion impeller 24, water inlet 25, stabilizer blade 26, crown plate 27, mounting hole 28.

Detailed Description

The following describes the present invention with reference to the accompanying drawings.

A circulating water pump comprises a pump shell 1 and a rotating motor 2, wherein a volute diversion chamber 3 and a water outlet 4 communicated with the volute diversion chamber 3 are arranged in the pump shell 1, an impeller 5 is arranged in the volute diversion chamber 3, and a motor shaft 6 of the rotating motor 2 is connected with a pump shaft 7 which penetrates through the pump shell 1 and rotates synchronously with the impeller 5, wherein a motor cover 8 connected with the top of the pump shell 1 is arranged outside the rotating motor 2, an oil chamber 9 is arranged between the motor cover 8 and the pump shell 1, an oil plug 10 is arranged on one side of the oil chamber 9, a bearing 11 which is positioned between the motor cover 8 and the pump shell 1 and is sleeved outside the pump shaft 7 is arranged in the oil chamber 9, and a sealing ring 12 sleeved outside the pump shaft 7 is arranged between the bearing 11 and the top;

a guide vane 13 which is coaxial with the impeller 5 is arranged outside the impeller 5, a first convex ring 14 is arranged at the top of the impeller 5, a first annular groove 15 which is in clearance fit with the outer wall of the first convex ring 14 is arranged on the guide vane 13, at least one positioning opening 16 is arranged on the outer side of the top of the guide vane 13, and a positioning block 17 which is in clearance fit with the positioning opening 16 is arranged in the pump shell;

the volute casing diversion chamber is characterized in that a connecting sleeve 18 which is connected with the pump casing 1 and is in clearance fit with the bottoms of the guide vanes 13 and the impeller 5 is arranged at the bottom of the volute casing diversion chamber, a base 19 is arranged at the bottom of the connecting sleeve 18, connecting flanges 20 are arranged between the bottom of the pump casing 1 and the connecting sleeve 18 and between the connecting sleeve 18 and the base 19, second annular grooves 21 are arranged at the bottoms of the pump casing 1 and the connecting sleeve 18, and second convex rings 22 which are in clearance fit with the second annular grooves 21 are arranged at the tops of the connecting sleeve 18 and the base 19;

be equipped with teeter chamber 23 between adapter sleeve 18 and the base 19, be equipped with in the teeter chamber 23 with pump shaft 7 synchronous revolution's

dispersion impeller

24, 19 bottoms of base are equipped with water inlet 25 and a plurality of stabilizer blade 26 with teeter chamber 23 intercommunication, water inlet 25 is L shape structure, and the outer wall links to each other with at least one stabilizer blade 26, and a plurality of stabilizer blades 26 set up around 19 a week intervals of base and the bottom is equipped with the crown plate 27, be equipped with a plurality of mounting holes 28 on the crown plate 27.

The utility model discloses a theory of operation does:

the guide vane 13 is sleeved outside the impeller 5 through a first annular groove 15 and a first convex ring 14 in a clearance fit manner, the impeller 5 is sleeved outside the pump shaft 7 and is integrally installed in a volute diversion chamber of the pump shell 1, the pump shell 1 is provided with the guide vane 13 through a positioning block 17 and a positioning opening 16 of the guide vane 13 in a positioning manner, the connecting sleeve 18 is fixedly connected with the pump shell 1 through a connecting flange 20, and the top of the connecting sleeve 18 is in clearance fit with the impeller 5 and the guide vane 13 to realize the installation of the impeller 5 and the guide vane 13;

the pump shaft 7 is locked with the end part of the dispersion disc 24 through a locking nut, the dispersion disc 24 and the impeller 5 rotate synchronously with the pump shaft 7 through a key groove or other matching, the base 19 is fixed with the bottom of the connecting sleeve 18 through the connecting flange 20 to form a stirring chamber 23, a sealing ring 12 is arranged between the pump shell 1 and the connecting sleeve 18 and between the connecting sleeve 18 and the base 19 through a second ring groove 21 and a second convex ring 22 in clearance fit sealing, the sealing performance between an oil chamber 9 at the position of the pump shaft 7 and a volute casing diversion chamber 3 is improved by arranging a sealing ring 12 between the pump shell 1 and the pump shaft 7, a bearing 11 is sleeved outside the pump shaft 7, the motor cover 8 is connected with the top of the pump shell 1 to form the oil chamber 9, an oil plug 10 is opened to inject lubricating oil into the oil chamber 9;

the mounting holes 28 on the annular plates 27 of the support legs 26 are fixedly connected with the fixed base body to mount the whole water pump, the outer wall of the L-shaped water inlet 25 is connected with at least one support leg 26 to improve the supporting stability, the water inlet 25 and the water outlet 4 are connected into a circulating medium pipeline of a circulating system, water is fed into the stirring chamber 23 from the water inlet 25, the motor shaft 6 of the rotating motor 2 drives the pump shaft 7 to synchronously rotate, the pump shaft 7 drives the dispersion disc 24 to rotate to scatter circulating media in the stirring chamber 23, and the phenomenon that the rotating motor 2 is overloaded or even burnt due to the fact that the impeller 5 and a flow channel are;

the impeller 5 and the pump shaft 7 rotate synchronously, centrifugal force is generated during high-speed rotation, media are pumped into the external guide vane 13, the spiral effect of the guide vane 13 is reduced, the flow velocity is reduced, the circulation volume is generated and is uniformly diffused into the volute diversion chamber 3 and discharged through the water outlet 4, the split motor cover 8, the pump shell 1, the connecting sleeve 18 and the base 19 are adopted, the water pump is convenient to install, the runner is formed, the disassembly, assembly and connection are reliable in operation, the dynamic balance is stable, the service life and the energy efficiency of the circulating water pump are improved, and particularly the use requirement when the circulating media are suspension with suspended particles or mixed media such as water, fiber substances and the like is met.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A circulating water pump comprises a pump shell and a rotating motor, wherein a volute diversion chamber and a water outlet communicated with the volute diversion chamber are arranged in the pump shell, an impeller is arranged in the volute diversion chamber, and a motor shaft of the rotating motor is connected with a pump shaft which penetrates through the pump shell and rotates synchronously with the impeller;

2. The circulating water pump according to claim 1, wherein a motor cover connected to a top of the pump housing is disposed outside the rotating motor, an oil chamber is disposed between the motor cover and the pump housing, an oil plug is disposed on one side of the oil chamber, a bearing disposed between the motor cover and the pump housing and sleeved outside the pump shaft is disposed in the oil chamber, and a sealing ring sleeved outside the pump shaft is disposed between the bearing and the top of the pump housing.

3. The circulating water pump according to claim 1, wherein a first convex ring is arranged at the top of the impeller, a first annular groove in clearance fit with the outer wall of the first convex ring is arranged on the guide vane, at least one positioning opening is arranged on the outer side of the top of the guide vane, and a positioning block in clearance fit with the positioning opening is arranged in the pump shell.

4. The circulating water pump as claimed in claim 1, wherein the connecting flanges are disposed between the bottom of the pump casing and the connecting sleeve and between the connecting sleeve and the base, the pump casing and the connecting sleeve are both provided with second annular grooves, and the connecting sleeve and the base are both provided with second protruding rings in clearance fit with the second annular grooves.

5. The circulating water pump according to any one of claims 1 to 4, wherein the water inlet is of an L-shaped structure, the outer wall of the water inlet is connected with at least one supporting leg, the supporting legs are arranged at intervals around the base, a ring plate is arranged at the bottom of the water inlet, and a plurality of mounting holes are formed in the ring plate.