CN220248371U - Self-priming centrifugal pump - Google Patents
Self-priming centrifugal pump Download PDFInfo
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- CN220248371U CN220248371U CN202321536290.2U CN202321536290U CN220248371U CN 220248371 U CN220248371 U CN 220248371U CN 202321536290 U CN202321536290 U CN 202321536290U CN 220248371 U CN220248371 U CN 220248371U
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- 239000007788 liquid Substances 0.000 claims abstract description 246
- 238000000926 separation method Methods 0.000 claims description 19
- 238000003860 storage Methods 0.000 claims description 18
- 230000007423 decrease Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 description 6
- 238000005086 pumping Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000411 inducer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
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Abstract
The application discloses a self-priming centrifugal pump, which comprises a pump body and an impeller arranged in the pump body, wherein a first liquid inlet channel is formed on the pump body; the two ends of the first liquid inlet channel are respectively provided with a first liquid inlet and a first liquid inlet outlet, and the cross section area of the first liquid inlet channel is smaller as the first liquid inlet outlet is closer; the impeller is provided with a second liquid inlet channel, the second liquid inlet channel is communicated with the first liquid inlet outlet, and the cross section area of the second liquid inlet channel is smaller than or equal to the cross section area of the first liquid inlet channel, which is positioned at the first liquid inlet outlet. In actual use, liquid is sucked into the pump body from the first liquid inlet; the cross-sectional area of the first liquid inlet channel is smaller as the liquid is closer to the second liquid inlet channel, so that the flow speed of the liquid from the first liquid inlet to the second liquid inlet channel is gradually increased, the stability of the liquid flow is enhanced, the generation of turbulence and vortex is prevented, and the formation of cavitation can be reduced.
Description
Technical Field
The utility model relates to the technical field of centrifugal pumps, in particular to a self-priming centrifugal pump.
Background
Centrifugal pumps are operated by utilizing centrifugal motion of water or oil generated by rotation of impellers, and are widely applied to industries such as production in chemical and petroleum departments, agricultural production, mining and metallurgical industries, electric power departments, nuclear power plants, national defense construction, pharmacy, water conservancy and the like. Compared with the common centrifugal pump of the same kind, the self-priming centrifugal pump has a larger pump cavity and a higher water suction port, and can suck liquid to put into normal operation by virtue of the self-action of the self-priming centrifugal pump so as to achieve the function of pumping the liquid, and the self-priming centrifugal pump is widely applied to the transportation of the liquid in the food, fuel and chemical industries.
The liquid in the centrifugal pump can generate cavitation after reaching the vaporization pressure of the liquid at a certain temperature, and the conventional self-priming centrifugal pump is generally provided with an inducer at the front end of an impeller inlet to improve cavitation performance, but the structure increases the axial dimension length, so that the mounting position of the pump is limited.
Disclosure of Invention
The utility model aims at least to overcome one of the problems and provides a self-priming centrifugal pump.
The technical scheme adopted by the utility model is as follows:
the application provides a self-priming centrifugal pump, which comprises a pump body and an impeller arranged in the pump body, wherein a first liquid inlet channel is formed in the pump body;
the two ends of the first liquid inlet channel are respectively provided with a first liquid inlet and a first liquid inlet outlet, and the cross section area of the first liquid inlet channel is smaller as the first liquid inlet outlet is closer;
the impeller is provided with a second liquid inlet channel, the second liquid inlet channel is communicated with the first liquid inlet outlet, and the cross section area of the second liquid inlet channel is smaller than or equal to the cross section area of the first liquid inlet channel, which is positioned at the first liquid inlet outlet.
In actual use, liquid is sucked into the pump body from the first liquid inlet; the cross-sectional area of the first liquid inlet channel is smaller as the liquid is closer to the second liquid inlet channel, so that the flow speed of the liquid from the first liquid inlet to the second liquid inlet channel is gradually increased, the stability of the liquid flow is enhanced, the generation of turbulence and vortex is prevented, and the formation of cavitation can be reduced.
Further, a second liquid inlet and a second liquid inlet outlet are formed at two ends of the second liquid inlet channel respectively, and the second liquid inlet is communicated with the first liquid inlet of the first liquid inlet channel;
the cross-sectional area of the second liquid inlet channel gradually decreases from the second liquid inlet to the second liquid inlet outlet.
The reduced cross-sectional area of the second inlet channel, in combination with the reduced cross-sectional area of the first inlet channel, reduces the flow rate of the liquid at the second inlet and/or the third inlet channel, and further improves the cavitation resistance of the pump.
Further, the longitudinal section of the second liquid inlet channel is trapezoid.
In the present utility model, the cross section mentioned above refers to a plane perpendicular to the main flow direction of the liquid in the first liquid inlet channel or the second liquid inlet channel, and the longitudinal section refers to a plane parallel to or overlapping with the main flow direction of the liquid in the first liquid inlet channel or the second liquid inlet channel.
Further, the second liquid inlet channel is a conical hole.
Further, the impeller comprises a plurality of blades, and the plurality of blades are arranged along the circumferential array of the mounting through holes;
and a third liquid inlet channel is arranged in the blade and is communicated with the second liquid inlet channel, and when the impeller rotates, liquid is thrown out from the third liquid inlet channel.
Further, the third liquid inlet channel comprises a third liquid inlet and a third liquid inlet outlet, and the third liquid inlet is communicated with the second liquid inlet of the second liquid inlet channel; and the closer to the third liquid inlet, the smaller the cross-sectional area of the third liquid inlet channel.
The decreasing cross-sectional area of the third liquid inlet channel facilitates increasing the flow rate of liquid being thrown out of the third liquid inlet outlet.
Further, the self-priming centrifugal pump also comprises a speed increasing box, and the speed increasing box is arranged on one side of the pump body, which is close to the impeller;
the speed increasing box comprises an output shaft, a mounting through hole is formed in the impeller, the shaft end of the output shaft is matched with the mounting through hole, the impeller is fixed on the output shaft, and the impeller rotates along with the output shaft.
The existing common self-priming centrifugal pump has no speed increasing box, runs at the power frequency rotating speed, has low self-priming height, long self-priming time and bigger size; through setting up the speed increasing box, make the rotational speed of impeller promote greatly, the centrifugal force that liquid received at the impeller also increases to increase centrifugal pump's self-priming height, reduce centrifugal pump's self-priming time, make centrifugal pump's self-priming ability obtain reinforcing. Meanwhile, under the condition of reaching the same performance, the sizes of the impeller and the pump body of the pump can be reduced, so that the structure of the pump is smaller and more compact.
Further, the self-priming centrifugal pump further comprises a pump cover, and the speed increasing box further comprises a box body and a box cover;
one side of the pump cover is used for being buckled with the pump body, and one side of the pump cover, which is far away from the pump body, is used for being buckled with the box body;
the box body is used for installing the output shaft, and the box cover is used for being buckled with one side, away from the pump cover, of the box body.
The output shaft of the speed increasing box is directly connected with the impeller, a pump shaft and a coupling are not needed to be additionally arranged, and the pump cover is buckled with the box body and the pump body of the speed increasing box at the same time, so that the transverse size of the self-priming centrifugal pump with speed increasing is greatly reduced, and the structure is more compact.
When in actual use, the pump cover is in sealing connection with the pump body, the pump cover is in sealing connection with the box body, and the box cover is in sealing connection with the box body.
Further, a first hole is formed in the pump cover, and the shaft end of the output shaft connected with the impeller penetrates through the first hole and is arranged in the pump body.
Further, the output shaft is a gear shaft, the speed increasing box further comprises an input shaft and a driving gear, and the input shaft and the driving gear are arranged on the box body;
the driving gear is coaxially sleeved on the input shaft and meshed with gear teeth on the gear shaft;
the number of teeth of the driving gear is larger than the number of teeth on the gear shaft;
the input shaft is used for being connected with a power source and driving the output shaft to rotate through the driving gear.
The gear speed increasing is safe and reliable.
Further, a second hole is formed in the box cover, and the second hole is used for enabling the connecting end of the input shaft and the power source to penetrate out of the box body.
Further, a gas-liquid separation chamber, a liquid storage chamber and an impeller chamber are formed in the pump body, and the gas-liquid separation chamber, the liquid storage chamber and the impeller chamber are communicated with each other;
the impeller chamber is used for installing an impeller and providing a rotating space for the impeller;
the liquid storage cavity is used for storing liquid and assisting the pump body to realize the self-priming function;
the gas-liquid separation chamber is provided with a first port and a second port, and the first port is used for providing an outlet for liquid pumped out of the pump body; the second port is used for receiving liquid thrown out of the third liquid inlet channel, and the gas-liquid separation chamber is used for receiving liquid thrown out of the impeller;
further, a third port is formed in the liquid storage chamber and is used for assisting the impeller in achieving the function of self-sucking liquid in the liquid storage chamber.
Further, the self-priming centrifugal pump further comprises a protection ring, wherein the protection ring is arranged in the impeller cavity and on the outer peripheral side of the impeller, and the protection ring is used for protecting the pump body from being worn by the rotating impeller.
A clamping groove is further formed in the impeller cavity, and the protection ring is clamped in the clamping groove.
The self-priming centrifugal pump provided by the application works according to the following principle:
the speed increasing box increases the speed of the output shaft, and the output shaft drives the impeller to rotate at a high speed; liquid enters from a first liquid inlet of the first liquid inlet channel, flows through the second liquid inlet channel and the third liquid inlet channel in sequence, is thrown to the gas-liquid separation chamber from a third liquid inlet outlet of the third liquid inlet channel, gas is discharged through a first port of the gas-liquid separation chamber, liquid heavy flows into the liquid storage chamber, after the gas is discharged completely, the liquid is sucked into the impeller, is thrown to the gas-liquid separation chamber under the action of high-speed rotation of the impeller and centrifugal force generated by the impeller, and is discharged through the first port, so that the pumping function is realized. After the centrifugal pump finishes one-time pumping, certain liquid is reserved in the liquid storage cavity for the next self-priming.
The beneficial effects of the utility model are as follows:
(1) The cross-sectional area of the first liquid inlet channel is smaller as the liquid is closer to the second liquid inlet channel, so that the flow speed of the liquid from the first liquid inlet to the second liquid inlet channel is gradually increased, the stability of the liquid flow is enhanced, the generation of turbulence and vortex is prevented, and the formation of cavitation can be reduced.
(2) The reduced cross-sectional area of the second inlet channel, in combination with the reduced cross-sectional area of the first inlet channel, reduces the flow rate of the liquid at the second inlet and/or the third inlet channel, and further improves the cavitation resistance of the pump.
(3) Through setting up the speed increasing box, make the rotational speed of impeller promote greatly, the centrifugal force that liquid received at the impeller also increases to increase centrifugal pump's self-priming height, reduce centrifugal pump's self-priming time, make centrifugal pump's self-priming ability obtain reinforcing.
(4) The output shaft of the speed increasing box is directly connected with the impeller, and the pump cover is buckled with the box body and the pump body of the speed increasing box at the same time, so that the transverse size of the self-priming centrifugal pump with speed increasing is greatly reduced, and the structure is more compact.
Drawings
FIG. 1 is a schematic diagram of a self-priming centrifugal pump according to an embodiment of the utility model;
FIG. 2 is a schematic view of a speed increasing box according to an embodiment of the present utility model;
fig. 3 is a schematic structural view of an impeller according to an embodiment of the present utility model.
The reference numerals in the drawings are as follows:
1. a pump body; 11. a first liquid inlet channel; 111. a first liquid inlet; 112. a first liquid inlet; 12. a gas-liquid separation chamber; 121. a first port; 122. a second port; 123. a third port; 13. a liquid storage chamber; 14. an impeller chamber; 2. an impeller; 21. a second liquid inlet channel; 211. a second liquid inlet; 212. a second liquid inlet; 22. mounting through holes; 23. a blade; 24. a third liquid inlet channel; 3. a speed increasing box; 31. an output shaft; 32. a case; 33. a case cover; 34. an input shaft; 35. a drive gear; 4. a pump cover; 5. and (3) protecting the ring.
Detailed Description
The present utility model will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 and 3, the present application provides a self-priming centrifugal pump, which comprises a pump body 1 and an impeller 2 arranged inside the pump body 1, wherein a first liquid inlet channel 11 is formed on the pump body 1;
the two ends of the first liquid inlet channel 11 are respectively provided with a first liquid inlet 111 and a first liquid inlet 112, and the cross section area of the first liquid inlet channel 11 is smaller as the first liquid inlet 112 is closer;
the impeller 2 is provided with a second liquid inlet channel 21, the second liquid inlet channel 21 is communicated with the first liquid inlet outlet 112, and the cross section area of the second liquid inlet channel 21 is smaller than or equal to the cross section area of the first liquid inlet channel 11 at the first liquid inlet outlet 112.
In actual use, liquid is sucked into the pump body 1 from the first liquid inlet 111; the smaller the cross-sectional area of the first liquid inlet passage 11 is, the more the second liquid inlet passage 21 is located, so that the flow rate of the liquid from the first liquid inlet 111 to the second liquid inlet passage 21 is gradually increased, the stability of the liquid flow is enhanced, and the generation of turbulence and vortex is prevented, thereby reducing the formation of cavitation.
In the present embodiment, two ends of the second liquid inlet channel 21 are respectively formed with a second liquid inlet 211 and a second liquid inlet outlet 212, and the second liquid inlet 211 is communicated with the first liquid inlet outlet 112 of the first liquid inlet channel 11;
the cross-sectional area of the second inlet channel 21 gradually decreases from the second inlet 211 to the second inlet 212.
The tapering cross-sectional design of the second feed channel 21, in combination with the tapering cross-sectional area of the first feed channel 11, results in a reduced flow rate of liquid at the inlet of the second feed inlet 211 and/or the inlet of the third feed channel 24 and in a further improved cavitation resistance of the pump.
In this embodiment, the longitudinal section of the second liquid inlet channel 21 is trapezoidal.
In the present utility model, the cross section mentioned above refers to a plane perpendicular to the main flow direction of the liquid in the first liquid inlet passage 11 or the second liquid inlet passage 21, and the longitudinal section refers to a plane parallel to or overlapping with the main flow direction of the liquid in the first liquid inlet passage 11 or the second liquid inlet passage 21.
In this embodiment, the second liquid inlet channel 21 is a tapered hole.
As shown in fig. 3, in the present embodiment, the impeller 2 includes the blades 23, the blades 23 include a plurality of the blades 23, and the plurality of the blades 23 are arranged in a circumferential array along the mounting through hole 22;
the third liquid inlet channel 24 is arranged in the vane 23, the third liquid inlet channel 24 is communicated with the second liquid inlet channel 21, and when the impeller 2 rotates, liquid is thrown out from the third liquid inlet channel 24.
In the present embodiment, the third liquid inlet channel 24 includes a third liquid inlet and a third liquid outlet, and the third liquid inlet is in communication with the second liquid inlet 212 of the second liquid inlet channel 21; and the closer to the third liquid inlet/outlet, the smaller the cross-sectional area of the third liquid inlet channel 24.
The decreasing cross-sectional area of the third inlet channel 24 facilitates increasing the flow rate of liquid being thrown out of the third inlet outlet.
As shown in fig. 2, in the present embodiment, the self-priming centrifugal pump further includes a speed increasing box 3, and the speed increasing box 3 is disposed on one side of the pump body 1 close to the impeller 2;
the speed increasing box 3 comprises an output shaft 31, a mounting through hole 22 is formed on the impeller 2, the shaft end of the output shaft 31 is matched with the mounting through hole 22, the impeller 2 is fixed on the output shaft 31, and the impeller 2 rotates along with the output shaft 31.
The existing common self-priming centrifugal pump is not provided with a speed increasing box 3, runs at the power frequency rotating speed, has low self-priming height, long self-priming time and bigger size; by arranging the speed increasing box 3, the rotating speed of the impeller 2 is greatly increased, and the centrifugal force of liquid received by the impeller 2 is also increased, so that the self-priming height of the centrifugal pump is increased, the self-priming time of the centrifugal pump is shortened, and the self-priming capability of the centrifugal pump is enhanced.
In the present embodiment, the self-priming centrifugal pump further includes a pump cover 4, and the speed increasing box 3 further includes a box body 32 and a box cover 33;
one side of the pump cover 4 is used for being buckled with the pump body 1, and one side of the pump cover 4 away from the pump body 1 is used for being buckled with the box body 32;
the case 32 is used for installing the output shaft 31, and the case cover 33 is used for buckling with the case 32 side that keeps away from the pump cover 4.
The output shaft 31 of the speed increasing box 3 is directly connected with the impeller 2, a pump shaft and a coupling are not needed to be additionally arranged, and the pump cover 4 is buckled with the box body 32 of the speed increasing box 3 and the pump body 1 at the same time, so that the transverse size of the self-priming centrifugal pump with speed increasing is greatly reduced, and the structure is more compact.
In this embodiment, the pump cover 4 is in sealing connection with the pump body 1, the pump cover 4 is in sealing connection with the box 32, and the box cover 33 is in sealing connection with the box 32.
In this embodiment, the pump cover 4 is provided with a first hole, and the shaft end of the output shaft 31 connected to the impeller 2 passes through the first hole and is disposed inside the pump body 1.
In this embodiment, the output shaft 31 is a gear shaft, the speed increasing box 3 further includes an input shaft 34 and a driving gear 35, and the input shaft 34 and the driving gear 35 are mounted on the box body 32;
the driving gear 35 is coaxially sleeved on the input shaft 34 and meshed with gear teeth on the gear shaft;
the number of teeth of the driving gear 35 is larger than the number of teeth on the gear shaft;
the input shaft 34 is for connection to a power source and drives the output shaft 31 for rotation via a drive gear 35.
The gear speed increasing is safe and reliable.
In this embodiment, the case cover 33 is provided with a second hole, and the second hole is used for allowing the connection end of the input shaft 34 and the power source to pass through the case 32.
In the present embodiment, a gas-liquid separation chamber 12, a liquid storage chamber 13 and an impeller chamber 14 are formed in the pump body 1, and the gas-liquid separation chamber 12, the liquid storage chamber 13 and the impeller chamber 14 are mutually communicated;
the impeller chamber 14 is used for installing the impeller 2 and providing a rotation space for the impeller 2;
the liquid storage chamber 13 is used for storing liquid and assisting the pump body 1 to realize the self-priming function;
the gas-liquid separation chamber 12 is formed with a first port 121 and a second port 122, the first port 121 being for providing an outlet for liquid pumped from within the pump body 1; the second port 122 is used for receiving liquid thrown out from the third liquid inlet channel 24, and the gas-liquid separation chamber 12 is used for receiving liquid thrown out from the impeller 2;
in this embodiment, the liquid storage chamber 13 is formed with a third port 123, and the third port 123 is used for assisting the impeller 2 to realize the function of self-sucking the liquid in the liquid storage chamber 13.
In this embodiment, the self-priming centrifugal pump further includes a protection ring 5, where the protection ring 5 is disposed in the impeller chamber 14 and on the outer peripheral side of the impeller 2, and the protection ring 5 is used to protect the pump body 1 from abrasion by the rotating impeller 2.
In this embodiment, a clamping groove is provided in the impeller chamber 14, and the protection ring 5 is clamped in the clamping groove.
The self-priming centrifugal pump provided by the application works according to the following principle:
the speed increasing box 3 increases the speed of the output shaft 31, and the output shaft 31 drives the impeller 2 to rotate at a high speed; liquid enters from a first liquid inlet 111 of the first liquid inlet channel 11, sequentially flows through the second liquid inlet channel 21 and the third liquid inlet channel 24, is thrown to the gas-liquid separation chamber 12 from a third liquid inlet outlet of the third liquid inlet channel 24, gas light is discharged through a first port 121 of the gas-liquid separation chamber 12, liquid heavy flows into the liquid storage chamber 13, after the gas is discharged, the liquid is sucked into the impeller 2, is thrown to the gas-liquid separation chamber 12 under the action of centrifugal force generated by the impeller 2 rotating at a high speed, and is discharged through the first port 121, so that a pumping function is realized. After the centrifugal pump finishes one-time pumping, certain liquid is reserved in the liquid storage chamber 13 for the next self-priming. The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the utility model, but rather is intended to cover all equivalent structures as modifications within the scope of the utility model, either directly or indirectly, as may be contemplated by the present utility model.
Claims (10)
1. The self-priming centrifugal pump comprises a pump body and an impeller arranged in the pump body, and is characterized in that a first liquid inlet channel is formed on the pump body;
the two ends of the first liquid inlet channel are respectively provided with a first liquid inlet and a first liquid inlet outlet, and the cross section area of the first liquid inlet channel is smaller as the first liquid inlet outlet is closer;
the impeller is provided with a second liquid inlet channel, the second liquid inlet channel is communicated with the first liquid inlet outlet, and the cross section area of the second liquid inlet channel is smaller than or equal to the cross section area of the first liquid inlet channel, which is positioned at the first liquid inlet outlet.
2. The self-priming centrifugal pump of claim 1, wherein a second liquid inlet and a second liquid outlet are respectively formed at two ends of the second liquid inlet channel, and the second liquid inlet is communicated with the first liquid inlet of the first liquid inlet channel;
the cross-sectional area of the second liquid inlet channel gradually decreases from the second liquid inlet to the second liquid inlet outlet.
3. The self-priming centrifugal pump of claim 2, wherein said second inlet channel has a trapezoidal longitudinal cross section.
4. The self-priming centrifugal pump of claim 1, further comprising a speed increasing box disposed on a side of said pump body adjacent said impeller;
the speed increasing box comprises an output shaft, a mounting through hole is formed in the impeller, the shaft end of the output shaft is matched with the mounting through hole, the impeller is fixed on the output shaft, and the impeller rotates along with the output shaft.
5. The self-priming centrifugal pump of claim 4, further comprising a pump cover, said speed increasing housing further comprising a housing and a cover;
one side of the pump cover is used for being buckled with the pump body, and one side of the pump cover, which is far away from the pump body, is used for being buckled with the box body;
the box body is used for installing the output shaft, and the box cover is used for being buckled with one side, away from the pump cover, of the box body.
6. The self-priming centrifugal pump of claim 5, wherein said pump cover is provided with a first aperture, and wherein a shaft end of said output shaft connected to said impeller passes through said first aperture and is disposed inside said pump body.
7. The self-priming centrifugal pump of claim 4, wherein said output shaft is a gear shaft, said speed increasing housing further comprising an input shaft and a drive gear, said input shaft and said drive gear being mounted on a housing;
the driving gear is coaxially sleeved on the input shaft and meshed with gear teeth on the gear shaft;
the number of teeth of the driving gear is larger than the number of teeth on the gear shaft;
the input shaft is used for being connected with a power source and driving the output shaft to rotate through the driving gear.
8. The self-priming centrifugal pump of claim 4, wherein said impeller includes a plurality of vanes, said vanes including a plurality of vanes disposed along a circumferential array of said mounting through holes;
and a third liquid inlet channel is arranged in the blade and is communicated with the second liquid inlet channel, and when the impeller rotates, liquid is thrown out from the third liquid inlet channel.
9. The self-priming centrifugal pump of claim 8, wherein a gas-liquid separation chamber, a liquid storage chamber and an impeller chamber are formed in said pump body, and said gas-liquid separation chamber, said liquid storage chamber and said impeller chamber are communicated with each other;
the impeller chamber is used for installing an impeller and providing a rotating space for the impeller;
the liquid storage cavity is used for storing liquid and assisting the pump body to realize the self-priming function;
the gas-liquid separation chamber is provided with a first port and a second port, and the first port is used for providing an outlet for liquid pumped out of the pump body; the second port is used for receiving liquid thrown out of the third liquid inlet channel, and the gas-liquid separation chamber is used for receiving liquid thrown out of the impeller.
10. The self-priming centrifugal pump of claim 1, further comprising a protective ring disposed within said impeller chamber and on an outer peripheral side of said impeller, said protective ring for protecting the pump body from wear by the rotating impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321536290.2U CN220248371U (en) | 2023-06-15 | 2023-06-15 | Self-priming centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321536290.2U CN220248371U (en) | 2023-06-15 | 2023-06-15 | Self-priming centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220248371U true CN220248371U (en) | 2023-12-26 |
Family
ID=89267333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321536290.2U Active CN220248371U (en) | 2023-06-15 | 2023-06-15 | Self-priming centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220248371U (en) |
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2023
- 2023-06-15 CN CN202321536290.2U patent/CN220248371U/en active Active
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