CN113819061A

CN113819061A - Kitchen garbage delivery pump

Info

Publication number: CN113819061A
Application number: CN202111019689.9A
Authority: CN
Inventors: 董文; 陈进; 陈思远; 董洪广; 谷加祥
Original assignee: Shangbaoluo Jiangsu Energy Saving Polytron Technologies Inc
Current assignee: Shangbaoluo Jiangsu Energy Saving Polytron Technologies Inc
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2021-12-21

Abstract

The invention provides a kitchen waste delivery pump, which relates to the technical field of delivery pumps and comprises: the centrifugal pump comprises a pump body, an impeller, a pressurizing screw and a driving device, wherein the impeller is arranged in a volute of the pump body, an inlet and an outlet are formed in the volute, the inlet of the volute is communicated with a feed inlet of the pump body, the outlet of the volute is communicated with a discharge outlet of the pump body, one end of the impeller, which is provided with a centrifugal blade, faces the inlet, when the impeller rotates, fluid media at the inlet can be guided to the outlet, and the driving device can drive the impeller to rotate; the supercharging spiral is fixedly arranged at one end, facing the inlet, of the impeller, the other end of the supercharging spiral extends towards the inlet, a discharging flow channel used for guiding flow is formed on the outer side of the impeller in the circumferential direction in the volute, fluid media can be ejected out along the first direction when the impeller rotates, the wall face, far away from the inlet, of the discharging flow channel is a first wall face, and the first wall face extends along the first direction. The kitchen waste conveying pump provided by the invention can accelerate the conveying efficiency, prevent the inlet of the volute from being blocked and prolong the service life of the volute.

Description

Kitchen garbage delivery pump

Technical Field

The invention relates to the technical field of pumps, in particular to a kitchen waste conveying pump.

Background

The kitchen waste conveying pump is a device for providing conveying power for kitchen waste, and the conventional kitchen waste conveying pump only provides flowing power of a fluid medium through a centrifugal impeller, so that the power is small, and the service life of the conveying pump is influenced by easy blockage and gas accumulation at a feed inlet; in addition, because the inner wall face that feed inlet one end was kept away from to current delivery pump spiral case generally all sets up to vertical terminal surface, and because the fluidic flow direction of following in the impeller possesses the contained angle with vertical face, this just leads to under the great, the faster condition of flow speed of pressure, the impact force of fluid to inner wall of the volute is big, has reduced the life of spiral case, consequently, needs a neotype rubbish from cooking delivery pump to solve above-mentioned problem urgently.

Disclosure of Invention

The invention aims to provide a kitchen waste conveying pump, which is used for solving the problems in the prior art, accelerating the conveying efficiency and prolonging the service life of a volute.

In order to achieve the purpose, the invention provides the following scheme:

the invention provides a kitchen waste delivery pump, comprising: the impeller is arranged in a volute of the pump body, an inlet and an outlet are arranged on the volute, the inlet is communicated with a feed inlet of the pump body, the outlet is communicated with a discharge outlet of the pump body, one end of the impeller, which is provided with centrifugal blades, faces the inlet, when the impeller rotates, fluid media at the inlet can be guided to the outlet, and the driving device can drive the impeller to rotate; the spiral supercharging device comprises an impeller, a pressurizing screw, a spiral shell and a spiral shell, wherein the pressurizing screw is fixedly arranged at one end, facing the inlet, of the impeller, the other end of the impeller extends towards the inlet, a discharge flow channel for guiding flow is formed in the volute on the outer side of the impeller in the circumferential direction, the impeller can eject fluid media in a first direction when rotating, the wall surface, far away from the inlet, of the discharge flow channel is a first wall surface, and the first wall surface extends in the first direction.

Preferably, the wall surface of the discharge channel far away from the impeller is a second wall surface, and the second wall surface is in smooth transition connection with the first wall surface.

Preferably, the impeller is a semi-open centrifugal impeller, the end face of the centrifugal blade fixed on the back cover plate of the impeller is a conical surface, and the first wall surface and the end face of the centrifugal blade fixed on the back cover plate are located on the same conical surface.

Preferably, the impeller is a semi-open centrifugal impeller, the end face of the impeller, on which the centrifugal blades are fixed, of the back cover plate is a curved surface, and the first wall surface and the end face of the back cover plate, on which the centrifugal blades are fixed, are located on the same curved surface.

Preferably, the driving device comprises a rotating shaft and a motor, one end of the rotating shaft is located in the volute, the other end of the rotating shaft is in transmission connection with an output shaft of the motor, the impeller is fixedly connected to one end, located in the volute, of the rotating shaft, and the rotating shaft is provided with the self-circulation cooling device.

Preferably, the volute casing is close to be provided with preceding welt on the inner wall terminal surface of import one end, preceding welt centers on pivot circumference sets up, preceding welt orientation a plurality of cutting grooves have been seted up to circumference on the lateral wall of impeller.

Preferably, the centrifugal blade can drive the fluid medium to flow along a second direction, and the cutting groove extends along the second direction.

Preferably, the booster screw and the impeller are designed integrally.

Compared with the prior art, the invention has the following technical effects:

the impeller of the kitchen waste conveying pump is fixedly provided with the pressurizing screw for conveying and pressurizing the fluid medium, and in the working process, the pressurizing screw provides enough conveying power for the fluid medium at the inlet of the volute, so that the fluid medium is prevented from blocking the inlet, the circulation speed of the fluid medium is increased, the pressure of the fluid medium between the centrifugal blades is increased, and the power of the fluid medium when the fluid medium is ejected from the impeller is increased; in addition, the fluid medium after the mode is adopted has larger impact force on the volute, so that the inclination direction of the first wall surface in the discharging flow channel is set to be the same as the ejection direction of the fluid medium, so that the hydraulic impact of the fluid on the volute is reduced, the hydraulic loss is reduced, the efficiency is improved, and the lift after discharging is increased.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural view of a kitchen waste delivery pump according to the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is a schematic structural view of an impeller and a pressurizing screw in the kitchen waste delivery pump provided by the present invention;

FIG. 4 is a cross-sectional view of a front liner plate of the kitchen waste delivery pump according to the present invention;

FIG. 5 is a schematic structural view of a front liner plate of the kitchen waste delivery pump according to the present invention;

FIG. 6 is a schematic structural view of a cutting groove on a front lining plate of the kitchen waste delivery pump according to the present invention;

FIG. 7 is a schematic structural view of a self-circulation cooling device in the kitchen waste delivery pump according to the present invention;

in the figure: 1-pump body, 2-volute, 3-impeller, 4-discharge port, 5-feed inlet, 6-inlet, 7-front lining plate, 8-centrifugal blade, 9-rotating shaft, 10-self-circulation cooling device, 11-pump cover, 12-rear cover plate, 13-discharge flow channel, 14-first wall surface, 15-second wall surface, 16-pressurizing screw, 71-cutting groove, 101-inner shaft sleeve, 102-outer shaft sleeve, 103-inner screw groove and 104-outer screw groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention aims to provide a kitchen waste conveying pump, which aims to solve the problems in the prior art, accelerate the conveying efficiency and prolong the service life of a volute.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

The invention provides a kitchen waste delivery pump, as shown in figures 1 to 7, comprising: the centrifugal pump comprises a pump body 1, an impeller 3, a pressurizing screw 16 and a driving device, wherein the impeller 3 is arranged in a volute 2 of the pump body 1, the volute 2 is provided with an inlet 6 and an outlet, the inlet 6 is communicated with a feed inlet 5 of the pump body 1, the outlet is communicated with a discharge outlet 4 of the pump body 1, one end of the impeller 3, which is provided with a centrifugal blade 8, faces the inlet 6, when the impeller 3 rotates, fluid media at the inlet 6 can be guided to the outlet, and the driving device can drive the impeller 3 to rotate; the supercharging helix 16 is fixedly arranged at one end of the impeller 3 facing the inlet 6, the other end of the supercharging helix extends towards the inlet 6, a discharge channel 13 for guiding flow is formed at the outer side of the impeller 3 in the volute 2 in the circumferential direction, the impeller 3 can eject fluid media in a first direction when rotating, the wall surface of one end, away from the inlet 6, of the discharge channel 13 is a first wall surface 14, and the first wall surface 14 extends in the first direction.

In the working process, the pressurizing screw 16 provides enough conveying power for the fluid medium at the inlet 6 of the volute 2, so that the fluid medium is prevented from blocking the inlet 6, the circulation speed of the fluid medium is increased, the pressure of the fluid medium between the centrifugal blades 8 is increased, and the power of the fluid medium when the fluid medium is ejected from the impeller 3 is increased; in addition, the fluid medium in the above manner has a large impact force on the volute casing 2, and therefore, the inclination direction of the first wall surface 14 in the discharge channel 13 is set to be the same as the ejection direction of the fluid medium, so that the hydraulic impact of the fluid on the volute casing 2 is reduced, the hydraulic loss is reduced, and the efficiency and the lift after discharge are improved.

Furthermore, the wall surface of the discharge channel 13 away from the impeller 3 is a second wall surface 15, the second wall surface 15 is in smooth transition connection with the first wall surface 14, the second wall surface 15 is annular, the outlet of the fluid medium in the volute 2 is preferably arranged on the second wall surface 15, an arc-shaped guide surface is formed between the second wall surface 15 and the first wall surface 14, and the guide surface is used for guiding the fluid and has a certain buffering effect.

Further, the impeller 3 is a semi-open type centrifugal impeller, the end face of the back cover plate 12 of the impeller 3, on which the centrifugal blades 8 are fixed, is a conical surface, and the first wall surface 14 and the end face of the back cover plate 12, on which the centrifugal blades 8 are fixed, are located on the same conical surface.

Further, the impeller 3 is a semi-open centrifugal impeller, the end face of the back cover plate 12 of the impeller 3, on which the centrifugal blades 8 are fixed, is a curved surface, and the first wall surface 14 and the end face of the back cover plate 12, on which the centrifugal blades 8 are fixed, are located on the same curved surface.

Further, drive arrangement includes pivot 9 and motor, the one end of pivot 9 is located spiral case 2, the other end is connected with the output shaft transmission of motor, 3 fixed connection of impeller are in the one end of spiral case 2 in pivot 9, impeller 3 and pivot 9 are connected through the parallel key, be provided with self-loopa cooling device 10 in the pivot 9, preferably, the one end of impeller 3 and the one end butt from self-loopa cooling device 10, self-loopa cooling device 10 is used for cooling down pivot 9, the life of extension pivot 9.

Further, be provided with preceding welt 7 on the inner wall terminal surface that volute 2 is close to 6 one ends of import, preceding welt 7 sets up around pivot 9 circumference, and a plurality of cut grooves 71 have been seted up to preceding welt 7 circumference on the lateral wall towards impeller 3, and preceding welt 7 sets up in volute 2 through a plurality of fix with screws, cuts long fiber and slice material through cut groove 71, prevents to take place the winding, influences impeller 3's rotation, and then influences the circulation of medium.

Further, the centrifugal blade 8 can drive the fluid medium to flow along the second direction, the cutting groove 71 extends along the second direction, and the cross-sectional shape of the cutting groove 71 is as shown in fig. 6.

Further, a machine seal cavity is arranged in the pump body 1, the rotating shaft 9 passes through the machine seal cavity, the cooling element is located in the machine seal cavity, the cooling element comprises an inner shaft sleeve 101 and an outer shaft sleeve 102, the inner shaft sleeve 101 is coaxially sleeved and fixed on the outer wall of the rotating shaft 9, the inner shaft sleeve 101 can rotate along with the rotating shaft 9 in the rotating process of the rotating shaft 9, the outer wall of the inner shaft sleeve 101 is provided with an inner spiral groove 103, the central axis of the inner spiral groove 103 is overlapped with the central axis of the inner shaft sleeve 101, the inner spiral groove 103 is used for circulation of a cooling medium, the outer shaft sleeve 102 is coaxially sleeved and fixedly connected on the outer wall of the inner shaft sleeve 101, the outer shaft sleeve 102 can rotate along with the inner shaft sleeve 101, the outer wall of the outer shaft sleeve 102 is provided with an outer spiral groove 104, the central axis of the outer spiral groove 104 is overlapped with the central axis of the outer shaft sleeve 102, the outer spiral groove 104 is used for circulation of the cooling medium, preferably, the outer shaft sleeve 102 is fixed with the inner shaft sleeve 101 through a fastening screw, meanwhile, the arrangement of the fastening screws cannot influence the circulation of the cooling medium in the inner spiral groove 103 and the outer spiral groove 104, a mechanical seal cavity is arranged between the pump cover 11 and the rotating shaft 9, both ends of the inner spiral groove 103 and the outer spiral groove 104 are communicated with the mechanical seal cavity and a cooling medium supply device, namely, the inner spiral groove 103 and the outer spiral groove 104 can be communicated with the mechanical seal cavity and the cooling medium supply device, so as to facilitate the circulation of the cooling medium, the spiral directions of the inner spiral groove 103 and the outer spiral groove 104 are opposite, and when the rotating shaft 9 rotates, the circulation directions of the cooling medium in the inner spiral groove 103 and the outer spiral groove 104 are opposite, so that the circulation direction of the cooling medium in the inner spiral groove 103 flows from the cooling medium supply device to the mechanical seal cavity, so as to cool the rotating shaft 9 by using the cooling medium, and the circulation direction of the cooling medium in the outer spiral groove 104 flows from the mechanical seal cavity to the cooling medium supply device, thereby realizing the backflow of the cooling medium in the machine seal cavity, realizing the self-circulation to reduce the production cost and effectively cooling the rotating shaft 9.

Furthermore, the pressurizing screw 16 and the impeller 3 are integrally designed, so that the structural strength is good, and the installation of the pressurizing screw and the impeller is convenient.

The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.

Claims

1. The utility model provides a kitchen garbage transfer pump which characterized in that: the method comprises the following steps: the impeller is arranged in a volute of the pump body, an inlet and an outlet are arranged on the volute, the inlet is communicated with a feed inlet of the pump body, the outlet is communicated with a discharge outlet of the pump body, one end of the impeller, which is provided with centrifugal blades, faces the inlet, when the impeller rotates, fluid media at the inlet can be guided to the outlet, and the driving device can drive the impeller to rotate; the spiral supercharging device comprises an impeller, a pressurizing screw, a spiral shell and a spiral shell, wherein the pressurizing screw is fixedly arranged at one end, facing the inlet, of the impeller, the other end of the impeller extends towards the inlet, a discharge flow channel for guiding flow is formed in the volute on the outer side of the impeller in the circumferential direction, the impeller can eject fluid media in a first direction when rotating, the wall surface, far away from the inlet, of the discharge flow channel is a first wall surface, and the first wall surface extends in the first direction.

2. The kitchen waste delivery pump of claim 1, further comprising: the wall surface of the discharging flow channel, which is far away from the impeller, is a second wall surface, and the second wall surface is in smooth transition connection with the first wall surface.

3. The kitchen waste delivery pump of claim 1, further comprising: the impeller is a semi-open type centrifugal impeller, the end face of the centrifugal blade fixed on the back cover plate of the impeller is a conical surface, and the first wall surface and the end face of the centrifugal blade fixed on the back cover plate are located on the same conical surface.

4. The kitchen waste delivery pump of claim 1, further comprising: the impeller is a semi-open type centrifugal impeller, the end face of the impeller, which is fixed with the centrifugal blades through the back cover plate, is a curved surface, and the first wall face and the end face of the back cover plate, which is fixed with the centrifugal blades, are located on the same curved surface.

5. The kitchen waste delivery pump of claim 1, further comprising: the driving device comprises a rotating shaft and a motor, one end of the rotating shaft is located in the volute, the other end of the rotating shaft is in transmission connection with an output shaft of the motor, the impeller is fixedly connected to one end, located in the volute, of the rotating shaft, and the rotating shaft is provided with a self-circulation cooling device.

6. The kitchen waste delivery pump of claim 5, wherein: the volute casing is close to be provided with preceding welt on the inner wall terminal surface of import one end, preceding welt centers on pivot circumference sets up, preceding welt orientation a plurality of cutting grooves have been seted up to circumference on the lateral wall of impeller.

7. The kitchen waste delivery pump of claim 6, further comprising: the centrifugal blade can drive the fluid medium to flow along a second direction, and the cutting groove extends along the second direction.

8. The kitchen waste delivery pump of claim 1, further comprising: the booster screw and the impeller are designed integrally.