CN110173461B - Water outlet section structure of low-lift pump - Google Patents
Water outlet section structure of low-lift pump Download PDFInfo
- Publication number
- CN110173461B CN110173461B CN201910485420.6A CN201910485420A CN110173461B CN 110173461 B CN110173461 B CN 110173461B CN 201910485420 A CN201910485420 A CN 201910485420A CN 110173461 B CN110173461 B CN 110173461B
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- Prior art keywords
- outlet section
- water outlet
- pump
- section body
- arc
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 103
- 241000270708 Testudinidae Species 0.000 claims abstract description 29
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 230000008676 import Effects 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000004323 axial length Effects 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of pumps, in particular to a water outlet section structure of a low-lift pump, which comprises an S-shaped water outlet section body, wherein a medium inlet and a medium outlet with opposite opening directions are formed at two ends of the water outlet section body, the inlet end face of the medium inlet is parallel to the outlet end face of the medium outlet, a tortoise back hole is formed in the middle of the water outlet section body, the edge of the tortoise back hole extends in the direction opposite to the medium inlet to form a bracket mounting part, the central line of the bracket mounting part coincides with the central line of the medium inlet, and a mounting bottom plate is arranged around the middle of the water outlet section body. The invention is suitable for various vertical submerged pumps, shortens the axial length of the pump shaft of the water pump, improves the rigidity of the pump shaft, prolongs the service life of the water pump, and reduces the production and manufacturing cost of the water pump; in addition, the operation vibration and noise of the pump set are reduced, the operation and maintenance cost of the pump is reduced, and the operation safety and reliability of the pump are improved.
Description
Technical Field
The invention relates to the technical field of pumps, in particular to a water outlet section structure of a low-lift pump.
Background
In the existing low-lift pump technology (refer to fig. 4), the water outlet section 27 of the pump is not provided with a bracket mounting position, a motor bracket is arranged above the water outlet section 27 after passing through the bearing bracket 29, a water lifting pipe 24 is additionally arranged below the medium inlet 25, the distance between the end surface of the medium inlet 25 and the vertical axis of the mounting position of the bearing bracket 29 is large, the length of the pump shaft is intangibly increased, the rigidity of the pump shaft is reduced, the running vibration of the water pump is promoted to be increased, the damage speed of the sliding bearing is increased, the service life of the water pump is reduced, and the manufacturing cost of the water pump is also increased; in the prior art, the medium outlet 26 of the water outlet section 27 is in a horizontal fixed direction, so that the water pump is not applicable to various flow pipeline processes, has a single application range and limits the use occasions of the water pump; when the process pipeline technology requires that the medium outlet 26 of the water outlet section is vertically upwards to the mounting bottom plate 28, the structure in the prior art is provided with a 90-degree elbow 30, and the water lifting pipe 24 is arranged below the water outlet section, so that the pipeline resistance is high, the hydraulic loss of the water pump is increased, the operation efficiency of the pump is reduced, the operation energy consumption and the operation vibration value of the water pump are increased, and the service life of the pump is shortened.
Disclosure of Invention
The invention aims to provide a water outlet section structure of a low-lift pump, which is beneficial to reducing the distance between a medium inlet and a vertical axis of a motor, prolonging the service life of the pump and reducing the operation vibration, noise and operation cost of the pump.
In order to achieve the above purpose, the invention provides a water outlet section structure of a low-lift pump, which comprises an S-shaped water outlet section body, wherein two ends of the water outlet section body form a medium inlet and a medium outlet with opposite opening directions, the inlet end face of the medium inlet is parallel to the outlet end face of the medium outlet, a tortoise back hole is formed in the middle of the water outlet section body, the edge of the tortoise back hole extends in the direction opposite to the medium inlet to form a bracket mounting part, the center line of the bracket mounting part coincides with the center line of the medium inlet, and a mounting bottom plate is arranged in the middle of the water outlet section body in a surrounding manner.
Optionally, the water outlet section body includes first arc portion and second arc portion, the first end opening of first arc portion forms the medium import, the first end of second arc portion forms the medium export, the second end of first arc portion and the second end smooth butt joint of second arc portion, the contained angle between tangent line and the central line of medium import of the second end of first arc portion and the second end of second arc portion 15 degree is less than or equal to phi and is less than or equal to 90 degrees.
Optionally, the water outlet section body further comprises a linear part, two ends of the linear part are respectively and smoothly butted with the first arc-shaped part and the second arc-shaped part, and an included angle between the central line of the medium inlet and the central line of the linear part is 15 degrees or more and 90 degrees or less.
Optionally, the relationship between the radius R1 of the first arc portion and the radius R2 of the second arc portion is r1=r2.
Optionally, the support comprises an end cover and a guide tortoise back, wherein the end cover is sunk into the support mounting part and is fixedly connected with the upper end face of the guide tortoise back, and the edge of the lower end face of the guide tortoise back is attached to the edge of the tortoise back hole.
Optionally, a tortoise back reinforcing rib extending along the central line of the water outlet section body is arranged on the lower end surface of the diversion tortoise back.
Optionally, a guide rib extending along the central line of the water outlet section body is arranged on the inner side surface of the water outlet section body.
Optionally, the mounting plate is provided with a bottom plate reinforcing rib, and one side end face of the bottom plate reinforcing rib is attached to the surface of the water outlet section.
Optionally, the water outlet section body and the mounting bottom plate are integrally formed.
Optionally, the device further comprises an outlet elbow, and one end of the outlet elbow is connected with the medium outlet in a circumferential rotation mode.
The embodiment of the invention has the following technical effects:
The invention is suitable for various vertical submerged pumps, and the water outlet section body and the mounting bottom plate do not need to be additionally provided with bearing brackets, so that a medium inlet formed by the opening of the water outlet section body is sunk below the mounting bottom plate, the water outlet section body is used as a water pumping pipe of the water pump, the structure is simple, the installation is convenient, the axial length of the pump shaft of the water pump is shortened, the rigidity of the pump shaft is improved, the service life of the water pump is prolonged, and the production and manufacturing cost of the water pump is reduced;
In addition, because the axial length of the pump is reduced, when the motor is installed on the bracket installation part through the motor bracket, the distance between the motor and the installation bottom plate is reduced, thereby being beneficial to reducing the operation vibration and noise of the pump set, reducing the operation and maintenance cost of the pump and improving the operation safety and reliability of the pump.
Drawings
Fig. 1 is a schematic structural view of a preferred embodiment of the present invention.
Fig. 2 is a front view of the outlet section of the preferred embodiment of the present invention.
Fig. 3 is a top view of the water outlet segment in the preferred embodiment of the present invention.
Fig. 4 is a schematic diagram of the structure of the water outlet section of the pump in the background art.
Reference numerals illustrate:
1. The water outlet section body, 11, a first arc-shaped part, 111, a medium inlet, 12, a second arc-shaped part, 121, a medium outlet, 13, a straight line part, 14, a tortoise back hole, 16, a bracket mounting part, 17, a mounting bottom plate, 171, a drain pipe through hole, 172, a residual drain pipe through hole, 173, a mounting hole, 18, a flow guiding rib, 19, a bottom plate reinforcing rib, 2, an end cover, 3, a flow guiding tortoise back, 31, a tortoise back reinforcing rib, 4, an outlet elbow, 5 and a motor bracket.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
Referring to fig. 1-3, the present embodiment provides a water outlet section structure of a low lift pump, including an S-shaped water outlet section body 1, two ends of the water outlet section body 1 form a medium inlet 111 and a medium outlet 121 with opposite opening directions, an inlet end surface of the medium inlet 111 is parallel to an outlet end surface of the medium outlet 121, a tortoise back hole 14 is provided in the middle of the water outlet section body 1, an edge of the tortoise back hole 14 extends in a direction opposite to the medium inlet 111 to form a bracket mounting portion 16, a center line of the bracket mounting portion 16 coincides with a center line of the medium inlet 111, and a mounting bottom plate 17 is provided around the middle of the water outlet section body 1. The invention is suitable for various vertical submerged pumps, and bearing brackets are not required to be additionally arranged on the water outlet section body 1 and the mounting bottom plate 17, so that a medium inlet 111 formed by the opening of the water outlet section body 1 is sunk below the mounting bottom plate 17, the water outlet section body 1 is used as a water pumping pipe of the water pump, the structure is simple, the installation is convenient, the axial length of a pump shaft of the water pump is shortened, the rigidity of the pump shaft is improved, the service life of the water pump is prolonged, and the production and manufacturing cost of the water pump is also reduced;
In addition, because the axial length of the pump is reduced, when the motor is mounted on the bracket mounting part 16 through the motor bracket 5, the distance between the motor and the mounting bottom plate 17 is reduced, thereby being beneficial to reducing the operation vibration and noise of the pump set, reducing the operation and maintenance cost of the pump and improving the operation safety and reliability of the pump.
Referring to fig. 2, further, the water outlet section 1 includes a first arc-shaped portion 11 and a second arc-shaped portion 12, a first end of the first arc-shaped portion 11 is opened to form a medium inlet 111, a first end of the second arc-shaped portion 12 is formed to form a medium outlet 121, a second end of the first arc-shaped portion 11 is smoothly abutted with a second end of the second arc-shaped portion 12, and an included angle between a tangent line of an abutting point of the second end of the first arc-shaped portion 11 and the second end of the second arc-shaped portion 12 and a center line of the medium inlet 111 is 15 degrees less than or equal to 90 degrees.
The water outlet section body 1 of this embodiment further includes a straight line portion 13, two ends of the straight line portion 13 are respectively and smoothly butted with the first arc portion 11 and the second arc portion 12, an included angle phi between a center line of the medium inlet 111 and a center line of the straight line portion 13 is not less than 15 degrees and not more than 90 degrees, in this embodiment, an included angle phi=45 degrees, it can be understood that two ends of the water outlet section body 1 of this embodiment are opposite in opening direction and an outlet end face is parallel to an inlet end face, in the prior art, when the process pipeline technology requires that the medium outlet 121 of the water outlet section is vertically upward, a 90-degree elbow is required to be installed, and a water pumping pipe is arranged below the water outlet section, so that pipeline resistance is large, hydraulic loss of the water pump is increased, and in this embodiment, the outlet end face of the medium outlet 121 and the inlet end face of the medium inlet 111 are mutually parallel through the first arc portion, thereby shortening the path of the water outlet section, improving the operation efficiency of the pump, reducing the operation energy consumption and operation vibration value of the pump, and prolonging the service life of the pump.
In the present embodiment, the relationship between the radius R1 of the first arc-shaped portion 11 and the radius R2 of the second arc-shaped portion 12 is r1=r2.
Referring to fig. 1, further, the air conditioner further comprises an end cover 2and a diversion tortoise back 3, wherein the end cover 2 is sunk into the bracket mounting part 16 and fixedly connected with the upper end face of the diversion tortoise back 3, so that when the motor bracket 5 is connected with the end cover 2, the distance between the motor and the medium inlet 111 is further reduced, the vibration and noise of the operation of the pump set are reduced, the edge of the lower end face of the diversion tortoise back 3 is attached to the edge of the tortoise back hole 14, and the smooth transition of the water outlet section is ensured.
Referring to fig. 1 and 2, a tortoise back reinforcing rib 31 extending along the central line of the water outlet section body 1 is arranged on the lower end surface of the diversion tortoise back 3, so that the deformation resistance of the diversion tortoise back 3 is further enhanced, and the working stability of the diversion tortoise back 3 is improved.
The inner side of the water outlet section body 1 is provided with a diversion rib 18 extending along the central line of the water outlet section body 1, so that on one hand, the diversion effect is achieved on the medium passing through the water outlet section body 1, and on the other hand, the deformation resistance of the water outlet section body 1 is enhanced, and the working stability is improved.
Further, the mounting base plate 17 is provided with a base plate reinforcing rib 19, one side end surface of the base plate reinforcing rib 19 is attached to the surface of the water outlet section body 1, and the strength of connection between the mounting base plate 17 and the water outlet section body 1 is improved.
Referring to fig. 2 and 3, the water outlet section 1 in the present embodiment is integrally formed with a mounting base plate 17, and the mounting base plate 17 is provided with a drain pipe via hole 171, a residual drain pipe via hole 172, and a plurality of mounting holes 173, each of which has an axis parallel to the axis of the medium inlet 111.
Referring to fig. 1, the embodiment further includes an outlet elbow 4, one end of the outlet elbow 4 is rotationally connected with the medium outlet 121 circumferentially, the direction of the medium outlet can be adjusted, and the outlet elbow 4 can horizontally rotate 270 °, so as to adapt to different installation environments.
In summary, the invention is suitable for various vertical-type installed submerged pumps, the water outlet section body 1 and the installation bottom plate 17 do not need to be additionally provided with bearing brackets, the bearing brackets enable the water inlet end surface formed by the opening of the water outlet section body 1 to sink below the installation bottom plate 17, the water outlet section body 1 is used as a water pumping pipe of the water pump, the structure is simple, the installation is convenient, the axial length of a pump shaft of the water pump is shortened, the rigidity of the pump shaft is improved, the service life of the water pump is prolonged, and the production and manufacturing cost of the water pump is also reduced;
In addition, because the axial length of the pump is reduced, when the motor is mounted on the bracket mounting part 16 through the motor bracket 5, the distance between the motor and the mounting bottom plate 17 is reduced, thereby being beneficial to reducing the operation vibration and noise of the pump set, reducing the operation and maintenance cost of the pump and improving the operation safety and reliability of the pump.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used herein to describe various information, but such information should not be limited to these terms, which are merely used to distinguish one type of information from another. For example, a "first" message may also be referred to as a "second" message, and similarly, a "second" message may also be referred to as a "first" message, without departing from the scope of the invention.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.
Claims (8)
1. The utility model provides a low-lift pump' S play water section structure, its characterized in that includes the play water section body that is the S type, go out the both ends of water section body and form medium import and the medium export that open direction is opposite, just the entry face of medium import with the export terminal surface of medium export is parallel, go out the middle part of water section body and seted up the tortoise back hole, the tortoise back hole edge extends the direction that is away from the medium import and forms support mounting portion, the central line of support mounting portion coincides with the central line of medium import, go out water section body middle part and enclose and be equipped with mounting plate;
The water outlet section body comprises a first arc-shaped part and a second arc-shaped part, the first end opening of the first arc-shaped part forms the medium inlet, the first end of the second arc-shaped part forms the medium outlet, the second end of the first arc-shaped part is in smooth butt joint with the second end of the second arc-shaped part, and an included angle between a tangent line of a butt joint point of the second end of the first arc-shaped part and the second end of the second arc-shaped part and a central line of the medium inlet is not less than 15 degrees and not more than 90 degrees;
The water outlet section body further comprises a linear part, two ends of the linear part are respectively and smoothly butted with the first arc-shaped part and the second arc-shaped part, and an included angle between the central line of the medium inlet and the central line of the linear part is 15 degrees or more and is less than or equal to 90 degrees.
2. The low head pump outlet section structure of claim 1, wherein the relationship between the radius R1 of the first arcuate portion and the radius R2 of the second arcuate portion is r1=r2.
3. The water outlet section structure of the low-lift pump according to claim 1, further comprising an end cover and a diversion tortoise back, wherein the end cover is sunk into the bracket mounting part and fixedly connected with the upper end surface of the diversion tortoise back, and the edge of the lower end surface of the diversion tortoise back is attached to the edge of the tortoise back hole.
4. The low lift pump water outlet section structure according to claim 3, wherein the lower end surface of the back of the deflector is provided with a back reinforcing rib extending along the central line of the water outlet section body.
5. The structure of the water outlet section of the low lift pump according to claim 1, wherein the inner side surface of the water outlet section body is provided with a diversion rib extending along the center line of the water outlet section body.
6. The water outlet section structure of the low-lift pump according to claim 1, wherein the mounting base plate is provided with a base plate reinforcing rib, and one side end surface of the base plate reinforcing rib is attached to the surface of the water outlet section.
7. The low lift pump outlet section structure of claim 1, wherein the outlet section body is integrally formed with the mounting base plate.
8. The low lift pump outlet section structure of claim 1 further comprising an outlet elbow, one end of the outlet elbow being in circumferential rotational connection with the media outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910485420.6A CN110173461B (en) | 2019-06-05 | 2019-06-05 | Water outlet section structure of low-lift pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910485420.6A CN110173461B (en) | 2019-06-05 | 2019-06-05 | Water outlet section structure of low-lift pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110173461A CN110173461A (en) | 2019-08-27 |
| CN110173461B true CN110173461B (en) | 2024-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910485420.6A Active CN110173461B (en) | 2019-06-05 | 2019-06-05 | Water outlet section structure of low-lift pump |
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| Country | Link |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1754047A (en) * | 2003-02-21 | 2006-03-29 | Ksb股份公司 | Oscillation-optimised tubular pump |
| CN201310486Y (en) * | 2008-12-04 | 2009-09-16 | 石家庄强大泵业集团有限责任公司 | Seawater desulfuration vertical diagonal flow pump |
| CN109707661A (en) * | 2019-01-08 | 2019-05-03 | 扬州大学 | A kind of pump installation of band abnormal shape water guide cone |
| CN210799494U (en) * | 2019-06-05 | 2020-06-19 | 广州市昕恒泵业制造有限公司 | Water outlet section structure of low-lift pump |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203348091U (en) * | 2013-07-05 | 2013-12-18 | 杭州金氏泵业有限公司 | Marine lifting axial flow pump |
| CN107489625A (en) * | 2017-09-26 | 2017-12-19 | 扬州大学 | Plane L-shaped shaft extension type pump installation |
| CN107725378A (en) * | 2017-10-17 | 2018-02-23 | 巢国平 | Vertical-type axial-flow pump |
-
2019
- 2019-06-05 CN CN201910485420.6A patent/CN110173461B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1754047A (en) * | 2003-02-21 | 2006-03-29 | Ksb股份公司 | Oscillation-optimised tubular pump |
| CN201310486Y (en) * | 2008-12-04 | 2009-09-16 | 石家庄强大泵业集团有限责任公司 | Seawater desulfuration vertical diagonal flow pump |
| CN109707661A (en) * | 2019-01-08 | 2019-05-03 | 扬州大学 | A kind of pump installation of band abnormal shape water guide cone |
| CN210799494U (en) * | 2019-06-05 | 2020-06-19 | 广州市昕恒泵业制造有限公司 | Water outlet section structure of low-lift pump |
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| Publication number | Publication date |
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| CN110173461A (en) | 2019-08-27 |
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