CN113833664B - Water storage type centrifugal pump - Google Patents
Water storage type centrifugal pump Download PDFInfo
- Publication number
- CN113833664B CN113833664B CN202111004269.3A CN202111004269A CN113833664B CN 113833664 B CN113833664 B CN 113833664B CN 202111004269 A CN202111004269 A CN 202111004269A CN 113833664 B CN113833664 B CN 113833664B
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- China
- Prior art keywords
- water
- guide pipe
- water inlet
- shaft
- centrifugal pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 238000007789 sealing Methods 0.000 claims abstract description 42
- 230000005540 biological transmission Effects 0.000 claims description 33
- 239000004576 sand Substances 0.000 claims description 24
- 238000002955 isolation Methods 0.000 claims description 12
- 239000013049 sediment Substances 0.000 description 13
- 238000007599 discharging Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal 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
- 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
-
- 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
- F04D13/16—Pumping installations or systems with storage reservoirs
-
- 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
- F04D29/007—Details, component parts, or accessories 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
- F04D29/08—Sealings
- F04D29/086—Sealings 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
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A water-storage centrifugal pump comprising: base, pump body, motor; the motor drives the impeller to rotate, the suction pressure is generated in the pump body, after the centrifugal pump is installed, water needs to be added into the pump body when the centrifugal pump is used for the first time, so that the centrifugal pump is guaranteed to be normally started, under the suction pressure of the water inlet of the pump body, negative pressure is generated in the sealing tank, water enters the sealing tank from the upper end of the vertical guide pipe through the water inlet, and then enters the pump body through the water inlet, after the centrifugal pump is closed, the water in the vertical guide pipe flows out through siphoning of the water inlet guide pipe connecting pipeline, water at the lower part of the upper end of the vertical guide pipe is effectively prevented from flowing back into the vertical guide pipe due to the fact that the upper end of the vertical guide pipe is higher than the water inlet, part of water is stored in the sealing tank, and when the centrifugal pump is started again, the water in the sealing tank can directly enter the water inlet without frequent water addition.
Description
Technical Field
The invention relates to the technical field of centrifugal pumps, in particular to a water storage type centrifugal pump.
Background
Centrifugal pumps operate by using rotation of an impeller to cause centrifugal movement of water. Before the water pump is started, the pump shell and the water suction pipe are filled with water, then the motor is started, the pump shaft drives the impeller and the water to do high-speed rotation movement, the water is centrifugally moved and thrown to the outer edge of the impeller, and the water flows into the water pressing pipeline of the water pump through the runner of the volute pump shell.
When the centrifugal pump is applied to pumping water, when the centrifugal pump is stopped, water in the pump cavity of the centrifugal pump can be sucked out from the water inlet due to the siphon action of the water, when the centrifugal pump is started again, the water is required to be added into the pump cavity of the centrifugal pump again, so that the centrifugal pump is prevented from starting up and idling, and the water adding operation is required to be carried out every time the centrifugal pump is started up in a relatively complex mode.
Disclosure of Invention
The invention aims to solve the problem that water needs to be added into a pump cavity every time the centrifugal pump is started, and the operation is complex.
The technical problems to be solved by the invention are realized by adopting the following technical scheme:
a water-storage centrifugal pump comprising:
base, pump body, motor;
the pump body and the motor are both arranged on the base, an impeller shaft is arranged on the pump body, one end of the impeller shaft is provided with an impeller, and the other end of the impeller shaft is connected with an output shaft of the motor;
be equipped with water inlet and delivery port on the pump body, water inlet department connects the seal pot, be fixed with the pipe of intaking on the seal pot, intake pipe one end is located the seal pot outside, and the other end stretches into the lower extreme that is connected with vertical pipe in the seal pot, vertical pipe's upper end is located water inlet upper portion, slidable mounting has the floating plate in the seal pot, floating plate slip ring cover is outside vertical pipe, vertical pipe upper end is equipped with the end cover, be equipped with the water outlet on the end cover, be equipped with the perforation on the floating plate, the end cover lower part is fixed with the non-return spring, the non-return spring lower extreme is fixed with the sealing ring board, the sealing ring board is located perforation upper portion.
Further, a filter screen is arranged at the water inlet.
Further, install the transmission case on the base, the impeller shaft passes the transmission case, install the jackshaft on the transmission case, the impeller shaft passes through gear connection with the jackshaft, the jackshaft lower extreme wears out the transmission case, install the lower extreme on the base, the lower extreme passes through gear connection jackshaft, the transmission shaft is installed in the seal pot bottom rotation, the transmission shaft lower extreme passes through gear connection lower extreme, fixed ring cover has the supporting sleeve on the transmission shaft, the seal pot lower part is equipped with the sediment ejection bucket, the supporting sleeve is located the sediment ejection bucket inside, the supporting sleeve outside is annular array and is provided with the division board, division board outer end side is fixed with the supporting ring, division board upper portion contact seal pot's lower bottom surface, be equipped with the blanking hole on the lower bottom surface of seal pot, the sediment ejection bucket bottom is equipped with the sediment ejection hole, the orbit when two adjacent division boards rotate around the transmission shaft passes through blanking hole and sediment ejection hole, sediment ejection hole and blanking hole setting.
Further, a positioning shaft is fixed on the supporting outer side between two adjacent isolation plates, two deflection plates are hinged to the positioning shaft, a baffle is fixed at the upper end of the positioning shaft, the upper end side of each deflection plate is tightly attached to the lower end face of the baffle, the upper end face of the baffle and the upper end side of each isolation plate are on the same horizontal plane, the outer end side of each deflection plate is tightly attached to the inner side of the supporting ring, a traction spring is arranged between the two deflection plates, guide grooves are respectively arranged on one side, close to each other, of each deflection plate, a movable rod is slidably arranged in each guide groove, a push rod is fixed on each movable rod, the push rods are slidably arranged on the supporting rings, a buffer wheel is fixed at one end, located outside the supporting rings, of each buffer wheel is in contact with the inner side wall of each sand discharge hopper, a top pressing lug is arranged on each inner side wall of each sand discharge hopper, when each buffer wheel is in contact with each top pressing lug, a gap between each two isolation plates and each sand discharge hole are staggered, a one-way valve is arranged on each supporting sleeve between each two adjacent isolation plates, each transmission shaft is hollow inside, each one-way valve is connected with each transmission shaft, and the transmission shaft is hollow, and the upper end of each transmission shaft is higher than the vertical guide pipe.
Furthermore, sealing strips are arranged on the upper end side and the lower end side of the isolation plate.
The beneficial effects of the invention are as follows:
the centrifugal pump is installed, water needs to be added into the pump body when the centrifugal pump is used for the first time, so that the centrifugal pump is normally started, negative pressure is generated in the sealing tank under the action of the suction pressure of the water inlet of the pump body, water enters the sealing tank from the upper end of the vertical guide pipe and then enters the pump body from the water inlet, after the centrifugal pump is closed, the water in the vertical guide pipe flows out due to siphonage of the water inlet guide pipe connection pipeline, and the water at the lower part of the upper end of the vertical guide pipe is effectively prevented from flowing back into the vertical guide pipe due to the fact that the upper end of the vertical guide pipe is higher than the water inlet, and therefore part of water is stored in the sealing tank.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a cross-sectional view of a seal pot of the present invention;
FIG. 3 is a view showing the structure of the sand hopper of the present invention;
FIG. 4 is a schematic view of the deflector plate installation of the present invention;
in the figure: 1. a base; 2. a pump body; 3. a motor; 12. an impeller shaft; 13. an impeller; 21. a water inlet; 22. A water outlet; 23. a sealed tank; 24. a water inlet conduit; 25. a vertical duct; 26. a floating plate; 27. an end cap; 28. a water outlet; 29. perforating; 30. a non-return spring; 31. sealing ring plates; 41. a filter screen; 42. a transmission case; 43. an intermediate shaft; 44. a bottom shaft; 45. a transmission shaft; 46. a support sleeve; 47. a partition plate; 48. A support ring; 49. a blanking hole; 50. a sand discharge hole; 51. a sealing strip; 52. a sand discharge hopper; 61. positioning a shaft; 62. a deflector plate; 63. a baffle; 64. a traction spring; 65. a guide groove; 66. a moving rod; 67. a push rod; 68. a buffer wheel; 69. pushing the convex blocks; 70. a one-way valve.
Detailed Description
The invention is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the invention easy to understand.
Example 1
As shown in fig. 1; a water-storage centrifugal pump comprising:
a base 1, a pump body 2 and a motor 3;
the pump body 2 and the motor 3 are both arranged on the base 1, an impeller shaft 12 is arranged on the pump body 2, one end of the impeller shaft 12 is provided with an impeller 13, and the other end is connected with an output shaft of the motor 3;
the pump body 2 is provided with a water inlet 21 and a water outlet 22, the water inlet 21 is connected with a sealing tank 23, a water inlet guide pipe 24 is fixed on the sealing tank 23, one end of the water inlet guide pipe 24 is positioned outside the sealing tank 23, the other end of the water inlet guide pipe extends into the sealing tank 23 to be connected with the lower end of a vertical guide pipe 25, the upper end of the vertical guide pipe 25 is positioned at the upper part of the water inlet 21, a floating plate 26 is slidably arranged in the sealing tank 23, a sliding ring of the floating plate 26 is sleeved outside the vertical guide pipe 25, the upper end of the vertical guide pipe 25 is provided with an end cover 27, a water falling opening 28 is arranged on the end cover 27, a perforation 29 is arranged on the floating plate 26, a check spring 30 is fixed at the lower part of the end cover 27, a sealing ring plate 31 is fixed at the lower end of the check spring 30, and the sealing ring plate 31 is positioned at the upper part of the perforation 29.
The motor 3 drives the impeller 13 to rotate, the suction pressure is generated in the pump body 2, when the centrifugal pump is installed and used for the first time, water needs to be added into the pump body 2 to ensure that the centrifugal pump is normally started, under the suction pressure of the water inlet 21 of the pump body 2, negative pressure is generated in the sealing tank 23, water enters the sealing tank 23 from the upper end of the water inlet guide pipe 24 through the upper end of the vertical guide pipe 25 and then enters the pump body 2 from the water inlet 21, after the centrifugal pump is closed, the water inlet guide pipe 24 is connected with a pipeline siphon to enable water in the vertical guide pipe 25 to flow out, and because the upper end of the vertical guide pipe 25 is higher than the water inlet 21, water at the lower end of the upper end of the vertical guide pipe 25 is effectively prevented from flowing back into the vertical guide pipe 25, so that part of the water is stored in the sealing tank 23, and when the centrifugal pump is started again, the water in the sealing tank 23 can directly enter the water inlet 21 without frequent water addition.
Example 2
On the basis of example 1, as shown in fig. 1-3; a filter screen 41 is installed at the water inlet 21.
The impeller shaft 12 passes through the transmission box 42, the intermediate shaft 43 is arranged on the transmission box 42, the impeller shaft 12 is connected with the intermediate shaft 43 through a gear, the lower end of the intermediate shaft 43 passes through the transmission box 42, the bottom shaft 44 is arranged on the base 1, the bottom shaft 44 is connected with the intermediate shaft 43 through a gear, the bottom of the sealing tank 23 is rotatably provided with the transmission shaft 45, the lower end of the transmission shaft 45 is connected with the bottom shaft 44 through a gear, a supporting sleeve 46 is sleeved on the transmission shaft 45 in a fixed ring manner, a sand discharge hopper 52 is arranged at the lower part of the sealing tank 23, the supporting sleeve 46 is positioned in the sand discharge hopper 52, a separation plate 47 is arranged outside the supporting sleeve 46 in an annular array manner, a supporting ring 48 is fixed at the outer end side of the separation plate 47, the upper part of the separation plate 47 contacts the lower bottom surface of the sealing tank 23, a blanking hole 49 is arranged on the lower bottom surface of the sealing tank 23, a sand discharge hole 50 is arranged at the bottom of the sand discharge hopper 52, and the sand discharge hole 50 and the blanking hole 49 are arranged in a dislocation manner.
The upper and lower end sides of the partition plate 47 are provided with sealing strips 51.
The water inlet 21 is provided with the filter screen 41, water entering the water inlet 21 in the sealing tank 23 can be filtered, sediment is prevented from entering the pump body 2, the filtered sediment is accumulated in the sealing tank 23, the sediment is deposited at the bottom of the sealing tank 23, the impeller shaft 12 is utilized to drive the intermediate shaft 43 to rotate, the intermediate shaft 43 drives the bottom shaft 44 to rotate, the transmission shaft 45 rotates, the transmission shaft 45 drives the supporting sleeve 46, the separating plates 47 and the supporting ring 48 to rotate together, when a gap between two adjacent separating plates 47 is opposite to the blanking hole 49, the sediment deposited in the sealing tank 23 flows into the gap between the two separating plates 47, along with the movement of the separating plates 47, and when the gap between the two separating plates 47 is moved to the position opposite to the sand discharging hole 50, the sediment flowing into the separating plates 47 is discharged from the sand discharging hole 50, and the lower end of the separating plates 47 contacts the lower bottom surface of the sand discharging hopper 52, so that the sand discharging hole 50 and the blanking hole 49 are mutually isolated, and the tightness in the sealing tank 23 is ensured.
Example 3
On the basis of example 2, as shown in fig. 1-4; the support outside between two adjacent division plates 47 is fixed with location axle 61, install two deflection plates 62 on the location axle 61 articulatedly, location axle 61 upper end is fixed with baffle 63, baffle 63 upper end side hugs closely baffle 63 lower terminal surface setting, baffle 63 upper end face and division plate 47 upper end side are on same horizontal plane, deflection plate 62 outer end side hugs closely support ring 48 medial surface setting, be equipped with traction spring 64 between two deflection plates 62, two deflection plates 62 are close to one side and are equipped with guide way 65 respectively, slidable mounting has movable rod 66 in the guide way 65, be fixed with ejector pin 67 on the movable rod 66, ejector pin 67 slidable mounting is on support ring 48, ejector pin 67 is located the outside one end of support ring 48 and is fixed with buffer wheel 68, buffer wheel 68 contacts the inside wall of sand discharge hopper 52, be equipped with on the inside wall of sand discharge hopper 52 and push up lug 69, when buffer wheel 68 contacted the top and push down lug 69, the clearance between two division plates 47 is misplaced with sand discharge hole 50 and blanking hole 49, be equipped with check valve 70 on the support sleeve 46 between two adjacent division plates 47, the inside hollow of transmission shaft 45, check valve 70 connects transmission shaft 45 inside, the hollow, the inside hollow transmission shaft 45 is higher than vertical end 25 on the upper end.
The isolation plate 47 drives the support ring 48 to rotate, and then drives the ejector rod 67 and the buffer wheel 68 to move together, and in the movement process, the buffer wheel 68 contacts the inner side wall of the sand discharge hopper, when the buffer wheel 68 contacts the ejector projection 69, the buffer wheel is extruded by the ejector projection 69, so that the ejector rod 67 moves towards the center of the support ring 48, the ejector rod 67 pushes the movable rod 66 to move, the movable rod 66 pushes the included angle between the two deflection plates 62 to increase, the deflection plates 62 extrude sediment between the deflection plates 62 and the isolation plate 47, water contained in the sediment is extruded into a hollow structure of the transmission shaft 45 from the one-way valve 70, and then the water flows back into the sealing tank 23 from the upper end of the transmission shaft 45.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. A water storage type centrifugal pump, comprising:
base, pump body, motor;
the pump body and the motor are both arranged on the base, an impeller shaft is arranged on the pump body, one end of the impeller shaft is provided with an impeller, and the other end of the impeller shaft is connected with an output shaft of the motor;
the pump body is provided with a water inlet and a water outlet, the water inlet is connected with a sealing tank, a water inlet guide pipe is fixed on the sealing tank, one end of the water inlet guide pipe is positioned outside the sealing tank, the other end of the water inlet guide pipe stretches into the sealing tank to be connected with the lower end of the vertical guide pipe, the upper end of the vertical guide pipe is positioned at the upper part of the water inlet, a floating plate is slidably arranged in the sealing tank, a sliding ring of the floating plate is sleeved outside the vertical guide pipe, the upper end of the vertical guide pipe is provided with an end cover, a water falling port is arranged on the end cover, a perforation is arranged on the floating plate, a non-return spring is fixed at the lower part of the end cover, a sealing ring plate is fixed at the lower end of the non-return spring, and the sealing ring plate is positioned at the upper part of the perforation;
the device comprises a base, an impeller shaft, a transmission box, a middle shaft, a lower shaft, a transmission shaft, a support sleeve, a sand discharge bucket, a support ring, a baffle plate, a blanking hole, a sand discharge hole and a sand discharge hole, wherein the transmission box is arranged on the base;
a positioning shaft is fixed on the outer side of a supporting sleeve between two adjacent isolation plates, two deflection plates are hinged on the positioning shaft, a baffle is fixed at the upper end of the positioning shaft, the upper end side of each deflection plate is tightly attached to the lower end face of the baffle, the upper end face of each baffle and the upper end side of each isolation plate are arranged on the same horizontal plane, the outer end sides of the deflection plates are tightly attached to the inner side of a supporting ring, a traction spring is arranged between the two deflection plates, guide grooves are respectively arranged on one side, which is close to the two deflection plates, of each support ring, a movable rod is slidably arranged in each guide groove, a push rod is fixedly arranged on each movable rod, each push rod is slidably arranged on each supporting ring, a buffer wheel is fixedly arranged at one end, which is positioned outside the supporting ring, of each buffer wheel is in contact with the inner side wall of a sand discharge hopper, when each buffer wheel is in contact with each push projection, a gap between each two isolation plates and each sand discharge hole are staggered, a one-way valve is arranged on each supporting sleeve between each two adjacent isolation plates, the inside of the transmission shaft is hollow, and the one-way valve is connected with the inside of the transmission shaft, and the upper end of the transmission shaft is higher than the upper end of a guide pipe;
sealing strips are arranged on the upper end side and the lower end side of the isolation plate.
2. A water storage centrifugal pump according to claim 1, wherein a filter screen is mounted at the water inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111004269.3A CN113833664B (en) | 2021-08-30 | 2021-08-30 | Water storage type centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111004269.3A CN113833664B (en) | 2021-08-30 | 2021-08-30 | Water storage type centrifugal pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113833664A CN113833664A (en) | 2021-12-24 |
| CN113833664B true CN113833664B (en) | 2023-11-21 |
Family
ID=78961609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111004269.3A Active CN113833664B (en) | 2021-08-30 | 2021-08-30 | Water storage type centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113833664B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114658665B (en) * | 2022-04-26 | 2023-08-04 | 新界泵业(浙江)有限公司 | Anticorrosive external mixing type self priming pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100063878A (en) * | 2008-12-04 | 2010-06-14 | 권헌실 | Apparatus for preventing blow back of residual water in water pump |
| CN201574946U (en) * | 2009-07-06 | 2010-09-08 | 安徽派雅新能源股份有限公司 | Vehicular solar energy self-priming pump |
| CN207049012U (en) * | 2017-08-17 | 2018-02-27 | 昆山国宝过滤机有限公司 | A kind of Self-priming pump |
| CN109654036A (en) * | 2018-11-12 | 2019-04-19 | 安徽埃斯克制泵有限公司 | It is a kind of outdoor to use anti-clogging blowdown self priming pump |
| CN209324677U (en) * | 2018-11-12 | 2019-08-30 | 安徽埃斯克制泵有限公司 | A kind of blowdown self priming pump for exempting to shut down cleaning |
| CN212508853U (en) * | 2020-05-29 | 2021-02-09 | 江苏罗地亚泵业有限公司 | Non-sealing high-efficiency energy-saving quick vertical self-priming pump |
-
2021
- 2021-08-30 CN CN202111004269.3A patent/CN113833664B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100063878A (en) * | 2008-12-04 | 2010-06-14 | 권헌실 | Apparatus for preventing blow back of residual water in water pump |
| CN201574946U (en) * | 2009-07-06 | 2010-09-08 | 安徽派雅新能源股份有限公司 | Vehicular solar energy self-priming pump |
| CN207049012U (en) * | 2017-08-17 | 2018-02-27 | 昆山国宝过滤机有限公司 | A kind of Self-priming pump |
| CN109654036A (en) * | 2018-11-12 | 2019-04-19 | 安徽埃斯克制泵有限公司 | It is a kind of outdoor to use anti-clogging blowdown self priming pump |
| CN209324677U (en) * | 2018-11-12 | 2019-08-30 | 安徽埃斯克制泵有限公司 | A kind of blowdown self priming pump for exempting to shut down cleaning |
| CN212508853U (en) * | 2020-05-29 | 2021-02-09 | 江苏罗地亚泵业有限公司 | Non-sealing high-efficiency energy-saving quick vertical self-priming pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113833664A (en) | 2021-12-24 |
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