CN114837960A - Shaftless pump pushing device and system with blades capable of completely leaving pipeline and capable of being self-closed - Google Patents
Shaftless pump pushing device and system with blades capable of completely leaving pipeline and capable of being self-closed Download PDFInfo
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- CN114837960A CN114837960A CN202210617132.3A CN202210617132A CN114837960A CN 114837960 A CN114837960 A CN 114837960A CN 202210617132 A CN202210617132 A CN 202210617132A CN 114837960 A CN114837960 A CN 114837960A
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- blades
- shaftless
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- self
- pump pushing
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- 239000012530 fluid Substances 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims description 22
- 238000005086 pumping Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000007788 liquid Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000012876 topography Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0055—Rotors with adjustable blades
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- 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
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
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- 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
- F04D29/18—Rotors
- F04D29/186—Shaftless rotors
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- 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
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- 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/605—Mounting; Assembling; Disassembling specially adapted for liquid pumps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a shaftless pump pushing device and a shaftless pump pushing system, wherein blades can completely leave a pipeline and can be self-closed; the shaftless pump pushing system comprises a power distribution room, a conveying pipeline and two groups of shaftless pump pushing devices; two or more shaftless pump pushing devices are installed in the conveying pipeline in series, and the shaftless pump pushing devices are electrically connected with the power distribution room. By arranging the hydraulic telescopic rod, the paddle can be contracted outside the pipeline when not used, the through-flow continuity of the pipeline is not influenced, and the interference of the paddle on fluid movement is reduced; when in use, the automatic switching can be realized; through shaftless design, the pump pushing equipment is directly connected with a conveying pipeline with the diameter of at least more than 2 meters in an equal-diameter mode, conveying efficiency is greatly improved, capital investment is reduced compared with a traditional booster pump station, and the pump pushing equipment has obvious cost advantages.
Description
Technical Field
The invention relates to the field of gas-liquid pipeline conveying equipment, in particular to a shaftless pump pushing device and system with blades capable of completely leaving a pipeline and capable of being self-closed.
Background
Different resources, including water resources, are distributed over the vast land of China; however, water resources in China are not uniformly distributed, and need to be allocated through a water channel or a water pipeline.
Because the topography of China basically belongs to the high west and the low east, and a plurality of multi-stage pump stations are needed to be arranged on part of long-distance large-diameter conveying pipelines, high-quality water sources with low topography are conveyed to high-topography areas through a plurality of centrifugal pumps in the pump stations, so that the requirements of drinking water, irrigation and production in the areas with high population density are met.
Because the diameter of the inlet and the outlet of the centrifugal pump in the prior art is too small, the centrifugal pump cannot be directly connected with a large-diameter transmission pipeline in an equal diameter mode. For the pressurization technology of long-distance large-diameter water delivery engineering, the existing technology in China is that pipelines are divided into fine parts and then are lifted in a gathering mode through centrifugal pumps, the construction investment of the conveying mode is large, the occupied area is large, each pump station at least needs to occupy several mu of land, and meanwhile, detection management personnel need to be equipped. Therefore, it is desirable to design a large diameter fluid delivery device that can be mounted directly in the middle of a delivery tube at a constant diameter.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a shaftless pump pushing device and a shaftless pump pushing system which can realize self-sealing by completely separating blades from a pipeline, and solve the problems of large capital investment, large occupied area and the like caused by the fact that a conventional pump body cannot be directly communicated with a conveying pipeline in an equal diameter mode.
Therefore, the invention provides a shaftless pump pushing device with blades capable of completely leaving a pipeline and capable of self-sealing, which comprises a fixed cylinder, a rotating cylinder, a driving motor and a gear transmission mechanism, wherein the driving motor drives the rotating cylinder to rotate circumferentially relative to the fixed cylinder through the gear transmission mechanism; the cross section of the rotary cylinder body is L-shaped, and the rotary cylinder body is provided with an annular mounting disc and a circular tube section, wherein the annular mounting disc is provided with a plurality of arc-shaped guide grooves; the annular mounting disc is also provided with a plurality of blades and a plurality of hydraulic telescopic rods I; the blade section of the blade is in a shape of an inclined blade, the rear end of the blade is provided with a limiting column, and the limiting column is arranged in the arc-shaped guide groove; the number of the arc-shaped guide grooves, the number of the blades and the number of the hydraulic telescopic rods are three or more, and the arc-shaped guide grooves, the blades and the hydraulic telescopic rods are distributed in an annular array respectively.
One end of the hydraulic telescopic rod is hinged with the limiting column, and the other end of the hydraulic telescopic rod is hinged with the annular mounting disc; the hydraulic telescopic rod I is used for driving the blades to move in the arc-shaped guide groove, so that the blades are unfolded along with the rotating cylinder in the rotating state and extend into the conveying pipeline for conveying fluid; or the paddle retracts and leaves the conveying pipeline to be in a non-working state.
Further, the gear transmission mechanism comprises a transmission gear and a large gear ring, the transmission gear is installed on a motor shaft of the driving motor, and the large gear ring is arranged on the outer side of the circular tube section of the rotary cylinder body.
Furthermore, the gear transmission mechanism also comprises a gear box, the input end of the gear box is connected with the transmission gear, and the output end of the gear box is connected with the large gear ring.
Furthermore, the outer side of the rotary cylinder body is provided with one or more hydraulic pumps, and the first hydraulic telescopic rod is connected with the hydraulic pumps.
Further, the inboard of fixed barrel is equipped with rigid seal circle and a plurality of hydraulic telescoping rod two, and hydraulic telescoping rod two can drive rigid seal circle axial displacement and laminate with annular mounting disc quotation, seals water or presses close to rotatory paddle, guarantees that rivers are not influenced.
Furthermore, nine blades are arranged on the annular mounting disc, and the blades are arranged in an annular array.
Furthermore, the blade section of the blade is in a shape of an inclined blade, and the projection of the blade section of the blade on the annular mounting disc is in a triangular shape.
Further, the outer side of the fixed cylinder body is provided with a concrete or steel structure fixing seat, and the fixed cylinder body and the driving motor are fixedly installed through the concrete or steel structure fixing seat.
Furthermore, the shaftless pump pushing device also comprises an annular connecting piece II and an annular connecting piece I, wherein the fixed cylinder body is connected with the pipeline II through the annular connecting piece II, and the rotary cylinder body is connected with the pipeline I through the annular connecting piece I. And the contact area of the fixed cylinder body and the first annular connecting piece and the rotating cylinder body is provided with a bearing and an oil sealing device, so that the rotating stability and the water sealing effect of the rotating cylinder body are ensured.
The invention also provides a shaftless pump pushing system which can realize self-sealing of the pipeline when the blades are completely separated from the pipeline, and the shaftless pump pushing system comprises a power distribution room, a conveying pipeline and two groups of shaftless pump pushing devices; two or more shaftless pump pushing devices are arranged in the conveying pipeline in series, and the shaftless pump pushing devices are electrically connected with the power distribution room; one shaftless pump pushing device serves as a main conveying device, and the other shaftless pump pushing device or devices serve as standby conveying devices.
The paddle can completely leave the pipeline and can be self-closed by the shaftless pump pushing device and the system, and the paddle in the shaftless pump pushing device can be collected when not used by arranging the hydraulic driving mechanism, so that the through-flow continuity of the pipeline is not influenced, and the paddle can be mechanically and automatically switched when used; the annular shaftless pump driving the blades to rotate is arranged through the motor and the gear transmission mechanism, so that the blades are driven to rotate at high speed, and liquid in the conveying pipeline is pushed from one end to the other end to complete the liquid conveying function; through shaftless design, make this pump push equipment and diameter at least at the pipeline lug connection more than 2 meters, conveying efficiency improves by a wide margin, for traditional pump station, the land saving, reduce capital construction input, have obvious cost advantage.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of a shaftless pump-pusher of the present invention;
FIG. 2 is a schematic structural view of a mounting plate in the shaftless pumping device of the present invention;
FIG. 3 is a schematic structural view of a blade of the shaftless pumping device according to the present invention in an operating state;
FIG. 4 is a schematic structural view of the shaftless pumping device of the present invention in a blade contracted state;
FIG. 5 is a schematic view of an interference analysis between adjacent blades in the shaftless pumping apparatus of the present invention;
fig. 6 is a schematic structural view of the shaftless pump-driving device of the present invention installed on a conveying pipeline.
Description of the reference numerals
1. A first pipeline; 2. a second pipeline; 3. a first annular connecting piece; 4. a second annular connecting piece; 5. fixing the cylinder; 6. rotating the cylinder; 7. a drive motor; 8. concrete or steel structure fixing seats; 51. a second hydraulic telescopic rod; 52. a rigid seal ring; 61. mounting a disc; 62. an arc-shaped guide groove; 63. a limiting column; 64. a first hydraulic telescopic rod; 65. a paddle; 66. A hydraulic pump; 91. a transmission gear; 92. a large gear ring.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1, the shaftless pumping device capable of self-sealing the paddle completely separated from the pipeline comprises: the device comprises a fixed cylinder body 5, a rotary cylinder body 6, a driving motor 7 and a gear transmission mechanism, wherein the outer end of the fixed cylinder body 5 is connected with a second pipeline 2 through a second annular connecting piece 4, and the rotary cylinder body 6 is connected with a first pipeline 1 through a first annular connecting piece 3.
Wherein, rotatory barrel 6 is for fixed barrel 5 circumferential direction, and fixed barrel 5, annular connecting piece 3 pass through the sealing washer with the junction of rotatory barrel 6 and be connected, play sealed effect. The contact area of the fixed cylinder 5, the annular connecting piece I3 and the rotating cylinder 6 is provided with a bearing and an oil sealing device, so that the rotating stability and the water sealing effect of the rotating cylinder 6 are ensured. In addition, the fixed cylinder 5 and the driving motor 7 are fixedly installed through a concrete or steel structure fixing seat 8.
Specifically, as shown in fig. 2 to 4, the cross section of the rotary cylinder 6 is L-shaped, and has two parts, namely an annular mounting plate 61 and a circular tube section, the annular mounting plate 61 is provided with a plurality of arc-shaped guide grooves 62, and is provided with a plurality of paddles 65 and a plurality of hydraulic telescopic rods 64, and the number of the arc-shaped guide grooves 62, the number of the paddles 65 and the number of the hydraulic telescopic rods 64 are three or more, and the arc-shaped guide grooves, the paddles 65 and the hydraulic telescopic rods 64 are respectively distributed in an annular array.
The blade section of the blade 65 is in an inclined blade shape, the rear end of the blade 65 is provided with a limiting column 63, the limiting column 63 is installed in the arc-shaped guide groove 62, the limiting column 63 is hinged with one end of a first hydraulic telescopic rod 64, and the other end of the first hydraulic telescopic rod 64 is hinged with the annular installation disc 61; the blades 65 are driven to move in the arc-shaped guide grooves 62 through the first hydraulic telescopic rods 64, and the blades 65 are unfolded along with the rotating cylinder in the rotating state and extend into the conveying pipeline to be in a working state or are retracted and separated from the conveying pipeline to be in a non-working state.
Wherein, the outside of rotatory barrel 6 is equipped with one or more hydraulic pump 66, and every hydraulic telescoping rod 64 all is connected with hydraulic pump 66, controls hydraulic telescoping rod 64 work through hydraulic pump 66, and then controls the expansion and the shrink of paddle 65.
As shown in fig. 1, the gear transmission mechanism includes a transmission gear 91 and a large gear ring 92, the large gear ring 92 is arranged on the outer side of the circular tube section of the rotary cylinder 6, a plurality of driving motors 7 are arranged on the radial outer side of the rotary cylinder 6, and the transmission gear 91 is installed on the motor shaft of the driving motor 7; through the gear matching of the transmission gear 91 and the large gear ring 92, the driving motor 7 drives the rotary cylinder 6 to rotate, and further drives the blades 65 to synchronously rotate, so that liquid in the conveying pipeline is pushed from one end to the other end, and the liquid conveying function is completed. The driving motor 7 extends radially along the pipeline, and the transmission gear 91 and the large gear ring 92 both adopt bevel gears to realize transmission through the bevel gears.
Specifically, as shown in fig. 3 and 4, nine paddles 65 are mounted on the annular mounting plate 61, and the paddles 65 are arranged in an annular array; meanwhile, the blade section of the blade 65 is in a slanted blade shape, and the projection of the blade section of the blade 65 on the annular mounting plate 61 is in a triangular shape. When all the blades 65 are in the unfolded state, the projection of all the blades 65 on the annular mounting plate 61 approximately encloses a full circle.
When all the paddles 65 shrink, because the blade sections of the paddles 65 are in the shape of oblique blades, a small-size gap (as shown in fig. 5) is kept between the projections of two adjacent paddles 65, and a large-size gap is kept between two adjacent paddles 65 in the projection direction, so that the two adjacent paddles 65 do not interfere with each other, and the paddles 65 are prevented from colliding during shrinking to affect the service life of the product.
As shown in fig. 1, a rigid sealing ring 52 and a plurality of hydraulic telescopic rods 51 are arranged on the inner side of the fixed cylinder 5. When the paddle 65 is completely contracted to a non-working state, the rigid sealing ring 52 is pushed to move axially through the hydraulic telescopic rod 51, the rigid sealing ring 52 is attached to the side wall of the annular mounting disc 61, at the moment, the fixed cylinder 5 and the rotary cylinder 6 form a cylindrical cavity and an annular cavity which are independent of each other, the annular cavity is used for storing the paddle 65 in a contracted state, the cylindrical cavity is used for conveying and circulating, and the interference effect of the paddle 65 on fluid movement is further reduced.
In an embodiment, the gear transmission mechanism further comprises a gear box, an input end of the gear box is connected with the transmission gear 91, an output end of the gear box is connected with the large gear ring 92, and a rotation speed ratio and a transmission torque ratio of the gear transmission mechanism can be changed by arranging the gear box, so that the rotation of the rotary cylinder 6 is more stable.
The invention also discloses a shaftless pump pushing system which can realize self-sealing of the pipeline when the paddle leaves the pipeline completely, and the shaftless pump pushing system comprises a conveying pipeline, two or more groups of shaftless pump pushing devices and a power distribution room; the method is mainly applied to the pressurization conveying of a large-diameter conveying pipeline with a certain height difference (lift height H) (the diameter of the pipeline is 2.0-2.4 m); the device can also be applied to a conveying pipeline with small diameter and large lift height.
As shown in fig. 6, two sets of shaftless pumping devices are installed in series in the conveying pipeline and are electrically connected with the distribution room respectively, one shaftless pumping device is used as a main conveying device, and the other shaftless pumping device or devices are used as standby conveying devices. The paddle 65 in the shaftless pump pushing device serving as a main driving device is in an expansion working state, and the paddle 65 in the shaftless pump pushing device serving as a standby device is completely contracted to be in a non-working state, so that the paddle 65 is prevented from generating resistance to water flow.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A shaftless pump pushing device with blades capable of completely leaving a pipeline and capable of being self-closed is characterized by comprising a fixed cylinder (5), a rotating cylinder (6), a driving motor (7) and a gear transmission mechanism, wherein the driving motor (7) drives the rotating cylinder (6) to rotate circumferentially relative to the fixed cylinder (5) through the gear transmission mechanism;
the cross section of the rotary cylinder body (6) is L-shaped, and the rotary cylinder body is provided with an annular mounting disc (61) and a circular tube section, wherein the annular mounting disc (61) is provided with a plurality of arc-shaped guide grooves (62); the annular mounting disc (61) is also provided with a plurality of blades (65) and a plurality of hydraulic telescopic rods I (64); the blade section of the paddle (65) is in an inclined blade shape, the rear end of the paddle (65) is provided with a limiting column (63), and the limiting column (63) is installed in the arc-shaped guide groove (62); the number of the arc-shaped guide grooves (62), the number of the blades (65) and the number of the hydraulic telescopic rods I (64) are three or more, and the arc-shaped guide grooves, the blades and the hydraulic telescopic rods are respectively distributed in an annular array;
one end of the first hydraulic telescopic rod (64) is hinged with the limiting column (63), and the other end of the first hydraulic telescopic rod (64) is hinged with the annular mounting disc (61); the first hydraulic telescopic rod (64) is used for driving the limiting column (63) to move in the arc-shaped guide groove (62), so that the blades (65) are unfolded along with the rotating cylinder body (6) in a rotating state and extend into a conveying pipeline for conveying fluid; or the paddle (65) is retracted and moved away from the conveying pipe, and is in a non-working state.
2. Shaftless pumping device capable of self-closing with blades completely separated from the pipe according to claim 1, wherein the gear transmission mechanism comprises a transmission gear (91) and a large gear ring (92), the transmission gear (91) is mounted on the motor shaft of the driving motor (7), and the large gear ring (92) is arranged outside the circular pipe section of the rotating cylinder (6).
3. Shaftless pumping device with self-sealing capability, wherein the paddle can be completely separated from the pipe, according to claim 2, wherein the gear transmission mechanism further comprises a gear box, wherein the input end of the gear box is connected with the transmission gear (91), and the output end of the gear box is connected with the large gear ring (92).
4. Shaftless pumping device capable of self-closing the blades completely separated from the pipeline according to claim 1, wherein one or more hydraulic pumps (66) are arranged outside the rotary cylinder (6), and the hydraulic telescopic rod I (64) is connected with the hydraulic pumps (66).
5. The shaftless pump pushing device with the self-sealing function and the capability of completely separating the blades from the pipeline is characterized in that a rigid sealing ring (52) and a plurality of second hydraulic telescopic rods (51) are arranged on the inner side of the fixed cylinder body (5), and the second hydraulic telescopic rods (51) can drive the rigid sealing ring (52) to axially move and are tightly attached to the surface of the annular mounting disc (61).
6. Shaftless pumping device capable of self-sealing with blades completely separated from the pipe according to claim 1, wherein a total of nine blades (65) are mounted on the annular mounting plate (61), and the blades (65) are arranged in an annular array.
7. Shaftless pumping device capable of self-sealing with the blades completely separated from the pipeline according to claim 1, wherein the blade sections of the blades (65) are in the shape of oblique blades, and the projection of the blade sections of the blades (65) on the annular mounting plate (61) is in the shape of a triangle.
8. The shaftless pump pushing device with the self-sealing function of the blades capable of completely leaving the pipeline according to claim 1 is characterized by further comprising a second annular connecting piece (4) and a first annular connecting piece (3), wherein the second annular connecting piece (4) is used for connecting the fixed cylinder (5) with the second pipeline (2), and the first annular connecting piece (3) is used for connecting the rotary cylinder (6) with the first pipeline (1).
9. Shaftless pumping device capable of self-sealing with the blades completely separated from the pipeline according to claim 8, wherein the contact area of the fixed cylinder (5), the first annular connector (3) and the rotating cylinder (6) is provided with a bearing and an oil seal device.
10. A shaftless pumping system having paddles that are completely removed from a pipe to enable self-sealing of the pipe, comprising: a distribution room, a conveying pipeline and two groups of shaftless pump pushing devices according to claims 1-9; two or more groups of shaftless pump pushing devices are arranged in the conveying pipeline in series, and the shaftless pump pushing devices are electrically connected with the distribution room; one shaftless pump pushing device serves as a main conveying device, and one or more shaftless pump pushing devices serve as standby conveying devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210617132.3A CN114837960A (en) | 2022-06-01 | 2022-06-01 | Shaftless pump pushing device and system with blades capable of completely leaving pipeline and capable of being self-closed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210617132.3A CN114837960A (en) | 2022-06-01 | 2022-06-01 | Shaftless pump pushing device and system with blades capable of completely leaving pipeline and capable of being self-closed |
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| Publication Number | Publication Date |
|---|---|
| CN114837960A true CN114837960A (en) | 2022-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210617132.3A Pending CN114837960A (en) | 2022-06-01 | 2022-06-01 | Shaftless pump pushing device and system with blades capable of completely leaving pipeline and capable of being self-closed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114837960A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2050100U (en) * | 1987-09-05 | 1989-12-27 | 刘希仲 | Rotary centrifugal type axial-flow pump |
| CN109603670A (en) * | 2018-12-29 | 2019-04-12 | 燕山大学 | A kind of electronic mixing duct |
| CN110500287A (en) * | 2019-07-12 | 2019-11-26 | 西安交通大学 | A kind of shaftless pump based on brushless motor |
| CN110552894A (en) * | 2019-09-23 | 2019-12-10 | 扬州大学 | Shaftless pump and using method thereof |
| JP2020169626A (en) * | 2019-04-04 | 2020-10-15 | 株式会社荏原製作所 | Pump comprising swirl restraining device |
-
2022
- 2022-06-01 CN CN202210617132.3A patent/CN114837960A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2050100U (en) * | 1987-09-05 | 1989-12-27 | 刘希仲 | Rotary centrifugal type axial-flow pump |
| CN109603670A (en) * | 2018-12-29 | 2019-04-12 | 燕山大学 | A kind of electronic mixing duct |
| JP2020169626A (en) * | 2019-04-04 | 2020-10-15 | 株式会社荏原製作所 | Pump comprising swirl restraining device |
| CN110500287A (en) * | 2019-07-12 | 2019-11-26 | 西安交通大学 | A kind of shaftless pump based on brushless motor |
| CN110552894A (en) * | 2019-09-23 | 2019-12-10 | 扬州大学 | Shaftless pump and using method thereof |
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