CN115182883A - Self-priming pump - Google Patents
Self-priming pump Download PDFInfo
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- CN115182883A CN115182883A CN202210811966.8A CN202210811966A CN115182883A CN 115182883 A CN115182883 A CN 115182883A CN 202210811966 A CN202210811966 A CN 202210811966A CN 115182883 A CN115182883 A CN 115182883A
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- 239000007788 liquid Substances 0.000 claims abstract description 154
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 238000000926 separation method Methods 0.000 claims abstract description 59
- 238000005192 partition Methods 0.000 claims description 33
- 238000003973 irrigation Methods 0.000 claims description 3
- 230000002262 irrigation Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 description 17
- 230000037452 priming Effects 0.000 description 7
- 238000007599 discharging Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002420 orchard Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 235000013311 vegetables Nutrition 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
- F04D9/00—Priming; Preventing vapour lock
- F04D9/02—Self-priming 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
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The self-priming pump comprises a pump body, wherein a pump cavity and an impeller chamber are arranged in the pump body, the impeller chamber is provided with an impeller and a guide vane disc, the guide vane disc is arranged outside the impeller, the guide vane disc is provided with a plurality of guide vanes, two adjacent guide vanes form a guide flow channel, a guide vane outlet is arranged on the guide flow channel, and a labyrinth gas-liquid separation channel is arranged between the guide vane outlet and the pump cavity; a liquid inlet channel is arranged in the pump cavity, a backflow inlet is arranged on the liquid inlet channel, and the pump cavity is communicated with the liquid inlet channel through the backflow inlet; the gas-liquid separation assembly is arranged in the pump cavity and comprises a water baffle, and the labyrinth gas-liquid separation channel is arranged between the guide vane outlet and the water baffle.
Description
Technical Field
The present disclosure relates to water pump technology, and is especially one kind of self sucking pump.
Background
The centrifugal pump is a fluid machine which transfers liquid by means of centrifugal force generated by rotation of an impeller, is widely applied to the fields of urban sewage disposal, farmland irrigation, petroleum transportation, marine ships, chemical engineering and the like, and is a special centrifugal pump which has a self-suction function and is also called as a self-suction centrifugal pump. Centrifugal pump and self priming pump all are the pump type that often uses in industrial production, and self priming pump and centrifugal pump all discharge water through the operation of impeller, and the self priming pump has compact structure, convenient operation, operate steadily, it is easy to maintain, high efficiency, long-lived to have advantages such as stronger self-priming ability, the self priming pump can be scattered into tiny raindrop with water and spray, is farm, nursery, orchard, the good machines and tools in vegetable garden, the self priming pump major part is supporting with the internal-combustion engine, adorns on mobilizable dolly, is suitable for field work.
The self-priming pump comprises suction chamber, liquid storage chamber, volute chamber, liquid return hole, gas-liquid separation room etc. and its theory of operation is: before the water pump is started, the pump shell is filled with water (or the water is stored in the pump shell), after the water pump is started, the impeller rotates at a high speed to enable water in the impeller channel to flow to the volute, at the moment, the inlet forms vacuum, the water inlet check valve is opened, air in the suction pipe enters the pump and reaches the outer edge through the impeller channel, a bottom valve is not needed to be installed on a pipeline, only quantitative liquid guiding is required to be stored in the pump body before work, and different liquids can be self-sucking pumps made of different materials.
Chinese patent with publication number CN209483617U discloses a gas-liquid separation device of self priming pump, has the pump body, is equipped with pump water inlet, perpendicular delivery port and parallel delivery port on the pump body, is equipped with impeller chamber and inner chamber in the pump body, is equipped with the impeller in the impeller chamber, and the inner chamber is separated into inlet channel and outlet channel through the partition panel, its characterized in that: one end of the water inlet channel is connected with a water inlet of the pump, and the other end of the water inlet channel is connected with a water inlet of the impeller chamber; one end of the water outlet channel is connected with the water outlet of the impeller chamber, the other end of the water outlet channel is connected with the vertical water outlet and the parallel water outlet, a gas-liquid separation partition plate is arranged at the bottom of the parallel water outlet in the water outlet channel, the gas-liquid separation partition plate extends to the vertical water outlet along the bottom of the parallel water outlet and divides the water outlet channel into two parts with mutually communicated tops, and the gas-liquid separation partition plate can enable liquid thrown out of the water outlet of the impeller chamber to naturally fall back into the impeller chamber due to gravity after being blocked by the gas-liquid separation partition plate under the condition that the parallel water outlet is not closed, so that the self-priming function is rapidly completed, and the installation condition of the self-priming pump is improved. However, since the liquid thrown away by the impeller naturally falls back into the impeller chamber by gravity, the efficiency of the whole gas-liquid separation process is not high enough.
Disclosure of Invention
Aiming at the problem that the gas-liquid separation efficiency of a self-priming pump is lower in the prior art, the self-priming pump with the advantages of simple structure and high gas-liquid separation efficiency is provided.
The technical scheme adopted by the disclosure for solving the technical problems is as follows: a self-priming pump comprises a pump body, wherein a pump cavity and an impeller chamber are arranged in the pump body, the impeller chamber is provided with an impeller and a guide vane disc, the guide vane disc is arranged outside the impeller, the guide vane disc is provided with a plurality of guide vanes, two adjacent guide vanes form a guide flow channel, a guide vane outlet is arranged on the guide flow channel, and a labyrinth gas-liquid separation channel is arranged between the guide vane outlet and the pump cavity; the liquid inlet passage is arranged in the pump cavity, a backflow inlet is arranged on the liquid inlet passage, and the pump cavity is communicated with the liquid inlet passage through the backflow inlet.
Compared with the existing products, the beneficial effects of the present disclosure are: the self-priming pump is provided with a labyrinth gas-liquid separation channel, and because the flow speed of gas is faster than that of liquid, and the speed of gas is hardly influenced by the labyrinth, the flow speed of liquid is greatly reduced, and a gas-liquid mixture can be quickly and effectively separated; the liquid inlet channel is provided with a backflow inlet, a gas-liquid mixture in the pump cavity enters the liquid inlet channel through the backflow inlet, negative pressure is formed in the liquid inlet channel, liquid can enter the liquid inlet channel through the first liquid inlet, and the self-priming process of the self-priming pump is accelerated.
Further, a gas-liquid separation assembly is arranged in the pump cavity and comprises a water baffle, and the labyrinth gas-liquid separation channel is arranged between the guide vane outlet and the water baffle.
In some embodiments, the gas-liquid separation assembly further comprises a partition plate, the partition plate is of a disc shape, the lower edge of the water baffle is attached to the bottom of the pump cavity, and the water baffle, the partition plate and the bottom of the pump cavity form a gas-liquid separation cavity.
In some embodiments, the gas-liquid separation assembly further comprises a partition plate and a surrounding plate, the partition plate is of a disc shape, the partition plate and the water baffle are connected through the surrounding plate, and the partition plate, the surrounding plate and the water baffle form a gas-liquid separation cavity.
Furthermore, an opening is formed in the gas-liquid separation cavity close to the upper part of the pump cavity.
Furthermore, the guide vane disc is a disc, the size of the guide vane disc is matched with that of the partition plate, a first mounting hole is formed in the guide vane disc, and the first mounting hole is used for mounting the impeller.
Further, be provided with a plurality of first archs between baffle and the stator dish, first arch is just to the stator dish setting, the circumferencial direction evenly distributed of a plurality of first archs along the disc type, stator export on the stator dish is just to the baffle setting.
Furthermore, the first protrusion is a strip-shaped protrusion.
In some embodiments, the baffle and the first projection are fixedly coupled.
In some embodiments, the vane disk and the first projection are fixedly connected.
Furthermore, the guide channel is provided with an inclined plane, and the inclined plane is used for enabling liquid thrown out by the impeller to enter the guide vane outlet smoothly along the guide channel and flow out from the guide vane outlet.
Furthermore, the inclined plane is arranged on one side, close to the impeller, of the guide vane outlet, and a second protrusion is arranged on the other side of the guide vane outlet.
Further, inlet channel one end is provided with first inlet, and the other end is provided with first liquid outlet, first inlet sets up on the pump body, the impeller is provided with the second inlet, the second inlet with first liquid outlet intercommunication.
Further, the backward flow entry sets up in the inlet channel below, the position that inlet channel is close to first inlet is provided with the lug, the lug is arranged in preventing that the liquid in the inlet channel from overflowing from first inlet, the bore of backward flow entry is less than the diameter of any of inlet channel.
Furthermore, a first working hole is formed in the partition plate, a second working hole is formed in the water baffle plate, and the liquid inlet channel penetrates through the first working hole and the second working hole.
Further, the first working hole has a larger diameter than the second working hole.
Furthermore, a first outlet and a water outlet are arranged on the pump body, the first outlet is arranged above the pump body and used for discharging liquid and gas, the water outlet is used for discharging the liquid in the pump cavity, and the water outlet is arranged at the bottom of the pump body.
Furthermore, the first outlet and the first liquid inlet are vertically arranged.
Further, a cover plate is arranged on one side, away from the pump cavity, of the impeller chamber and used for separating the impeller chamber from the external environment, and a driving mechanism is arranged on one side, away from the impeller chamber, of the cover plate and used for providing driving force for the impeller.
Furthermore, the cover plate is provided with a second mounting hole, the driving mechanism is a motor, the motor is connected with the impeller through a driving shaft, and the driving shaft of the motor penetrates through the second mounting hole to be connected with the impeller.
Furthermore, the pump body is also provided with a water filling opening which is communicated with the pump cavity.
Drawings
The present application will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of illustrating the preferred embodiments and therefore should not be taken as limiting the scope of the present application. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on the concept of a composition or construction of the object being described and may include exaggerated displays and are not necessarily drawn to scale.
FIG. 1 is one of the cross-sectional views of a self-primer pump of the present disclosure;
FIG. 2 is a second cross-sectional view of a self-primer pump of the present disclosure;
FIG. 3 is a third cross-sectional view of a self-primer pump of the present disclosure;
FIG. 4 is one of the vane disk structures schematic diagrams of the present disclosure;
FIG. 5 is a second schematic view of a vane disk structure of the present disclosure;
FIG. 6 is one of the schematic structural views of the gas-liquid separation chamber of the present disclosure;
fig. 7 is a second schematic structural view of the gas-liquid separation chamber of the present disclosure.
Description of the reference numerals:
1. a first liquid inlet; 2. a water filling port; 3. a first outlet; 4. a guide vane disk; 5. a gas-liquid separation chamber; 6. a liquid inlet channel; 7. a water outlet; 8. a first liquid outlet; 9. a pump cavity; 10. enclosing plates; 11. a water baffle; 12. a partition plate; 13. a first protrusion; 14. a first working hole; 15. a second working hole; 16. a reflux inlet; 17. a guide vane; 18. a separation well; 19. a bump; 20. a second protrusion; 21. a guide vane outlet; 22. and a flow guide channel.
Detailed Description
In order to make the technical solutions of the present disclosure better understood by those skilled in the art, the present disclosure will be described in detail, clearly and completely with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the disclosure and are not intended to limit the disclosure.
In the description of the present invention, if there are first and second descriptions for distinguishing technical features, they are not interpreted as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, the above terms should not be construed as limiting the present invention.
One embodiment of the present disclosure discloses a self-priming pump, as shown in FIGS. 1-7.
The utility model provides a self priming pump, which comprises a pump body, be provided with pump chamber 9 and impeller chamber in the pump body, the impeller chamber is provided with impeller and stator 4, impeller here is centrifugal impeller, it utilizes centrifugal force acting to make the air improve pressure, stator 4 sets up outside the impeller, stator 4 is provided with a plurality of stator 17, two adjacent stator 17 form water conservancy diversion way 22, be provided with stator export 21 on the water conservancy diversion way 22, be provided with maze gas-liquid separation passageway between stator export 21 and the pump chamber 9, be provided with inlet channel 6 gas-liquid separation subassembly in the pump chamber 9.
In some embodiments, the gas-liquid separation assembly comprises a water baffle 11 and a partition plate 12, the water baffle 11 is fixedly connected with the liquid inlet channel 6, the lower edge of the water baffle 11 is attached to the bottom of the pump cavity 9, and the water baffle 11, the partition plate 12 and the bottom of the pump cavity 9 form a gas-liquid separation cavity.
In some embodiments, the gas-liquid separation assembly includes a baffle 11, a shroud 10, and a partition 12, the shroud 10, and the baffle 11 forming the gas-liquid separation chamber 5. Specifically, baffle 12 is the disc type, including annular bottom surface and around the annular arch of bottom surface periphery setting, stator dish 4 is the disc type, stator dish 4's size and baffle 12's size phase-match, stator dish 4's edge and the protruding laminating of annular of baffle 12, stator export 21 sets up the afterbody at water conservancy diversion way 22, stator export 21 is along circumferencial direction evenly distributed, stator export 21 is circular or oval or polygon, the shape and the size of every stator export 21 are unanimous, do not limit here to the concrete shape and the size of stator export 21. The shape of the water baffle 11 is U-shaped, the opening of the gas-liquid separation cavity 5 in the pump cavity 9 is arranged upwards, and the shape of the gas-liquid separation component is adapted to the shape of the pump cavity 9 through the disc-shaped partition plate 12. A gap is formed between the bottom of the gas-liquid separation cavity 5 and the bottom of the pump cavity, so that the vibration of the gas-liquid separation cavity 5 caused by the rotation of the impeller is prevented from further rubbing the bottom of the pump cavity 9 and generating noise, and an opening is formed in the upper part, close to the pump cavity 9, of the gas-liquid separation cavity 5 and used for discharging gas and liquid out of the gas-liquid separation cavity 5.
It can be understood that a first mounting hole is formed in the center of the guide vane disk 4, the first mounting hole is used for mounting an impeller, the impeller continuously rotates in an impeller chamber to generate centrifugal force, and the gas-liquid mixture is ejected from the guide vane outlet 21 along the flow guide channel 22. Set up a plurality of banding first archs 13 between baffle 12 and the stator dish 4, a plurality of first archs 13 are along the circumferencial direction evenly distributed of disc type, and it is noted that, stator export 21 on the stator dish 4 just sets up baffle 12 for the gas-liquid mixture who flows out by stator export 21 can strike on the baffle 12.
In some embodiments, the baffle 12 and the first protrusion 13 are fixedly connected, so that the gas-liquid mixture can be better separated from the liquid by the collision of the gas-liquid mixture through the first protrusion 13.
In some embodiments, the vane disk 4 and the first protrusion 13 are fixedly connected, so that the gas-liquid mixture can be collided by the first protrusion 13 to better separate the gas from the liquid.
In some embodiments, the guide vane 22 is provided with a downward slope, and the slope is configured to enable the liquid thrown out by the impeller to enter the guide vane outlet 21 along the guide vane 22 more quickly and to flow out from the guide vane outlet 21. It can be appreciated that, the impeller throws away the back with gas-liquid mixture, gets into water conservancy diversion way 22, and the gas flow velocity can spread soon, and liquid gets into stator export 21 through decurrent inclined plane again along water conservancy diversion way 22, and the setting up on inclined plane makes liquid more smooth and quick flow out by stator export 21.
It should be noted that, a second protrusion 20 is disposed at the tail of the guide vane outlet 21, and the second protrusion 20 is disposed to prevent the liquid flowing down from the inclined plane from rushing out of the guide vane disk 4, and the liquid flowing down from the inclined plane partially collides with the second protrusion 20 and finally is deflected back to the guide vane outlet 21. In addition, the arrangement of the second protrusion 20 makes the liquid flow slower through additional collision, and the gas flow rate is hardly influenced, so that the gas-liquid separation effect is better.
It is worth mentioning that a return inlet 16 is provided below the inlet channel 6, the return inlet 16 being provided near the lower part of the pump chamber 9 to facilitate the entry of fluid from the return inlet 16 into the inlet channel 6. The pump cavity is communicated with the liquid inlet channel 6 through the backflow inlet 16, the liquid inlet channel 6 is in an arc-shaped trend, the diameter of the liquid inlet channel 6 is not constant in the pump cavity 9, and the diameter of the backflow inlet 16 is smaller than the diameter of any position of the liquid inlet channel 6. Liquid in the pump cavity 9 enters the liquid inlet channel 6 through the backflow inlet 16 and then enters the impeller, the liquid is thrown into the guide channel 22 under the action of centrifugal force of the impeller, the pressure of the liquid inlet channel 6 is smaller than that in the pump cavity 9, the liquid is convenient to enter the liquid inlet channel 6 through the first liquid inlet 1, meanwhile, the flow speed of the liquid entering the liquid inlet channel 6 through the backflow inlet 16 is increased due to the fact that the caliber of the backflow inlet 16 is smaller than the diameter of the liquid inlet channel 6, the pressure in the liquid inlet channel 6 is further reduced, and the liquid is favorable for entering through the first liquid inlet 1.
The liquid inlet channel 6 is provided with a bump 19 at a position close to the first liquid inlet 1, and the bump 19 is arranged on the inner wall below the liquid inlet channel 6 and used for preventing the liquid in the liquid inlet channel 6 from overflowing from the first liquid inlet 1, so that the liquid inlet channel 6 has a higher water level.
The pump body is provided with a first outlet 3 and a water outlet 7, the first outlet 3 is arranged above the pump body, the first outlet 3 is used for discharging air and a small amount of liquid out of the pump cavity 9, and the water outlet 7 is arranged at the bottom of the pump body and used for discharging the liquid in the pump cavity 9.
It will be appreciated that the side of the impeller chamber remote from the pump chamber 9 is provided with a cover plate for separating the impeller chamber from the external environment, the side of the cover plate remote from the impeller chamber is provided with a motor for providing a driving force to the impeller, the cover plate is provided with a second mounting hole, the motor is connected to the impeller via a drive shaft, and the motor drive shaft is connected to the impeller via the second mounting hole.
Preferably, the water baffle 11 is further provided with a separation hole 18, when the gas-liquid mixture enters the gas-liquid separation chamber 5, the gas-liquid mixture forms small bubbles in the separation hole, then the small bubbles are gathered into larger bubbles, and when the size of the bubbles is large to a certain extent, the bubbles move upwards and are finally discharged from the first outlet 3, and meanwhile, a part of liquid flows out from the separation hole 18, so that the gas-liquid separation effect is achieved, the pressure in the gas-liquid separation chamber 5 is reduced, and the self-priming efficiency of the self-priming pump is further improved.
The pump body is also provided with a water filling opening 2, the water filling opening 2 is communicated with the pump cavity 9, and water enters from the water filling opening 2.
It can be understood that the labyrinth gas-liquid separation channel is a channel formed by the second protrusion 20, the partition plate 12, the first protrusion 13 and the water baffle 11 in sequence, when the self-priming pump just starts to work, water needs to be injected into the pump cavity 9 through the water injection port 2, a mixture of water and air in the pump cavity 9 enters the impeller, the impeller generates centrifugal force to enable the mixture of water and air to form high-speed fluid, the high-speed fluid enters the guide channel 22, then flows out from the guide vane outlet 21 through the collision of the second protrusion 20, collides with the partition plate 12 and then collides with the first protrusion 13, and converges and collides with the water-liquid separation cavity 5 and then collides with the water baffle 11. In the process, the gas-liquid mixture is subjected to collision and baffling for four times, namely a labyrinth is formed, namely a gas-liquid separation channel, and the gas flow speed is higher than that of the liquid and is hardly influenced, so that the liquid flow speed is greatly reduced, and the gas-liquid mixture can be quickly and effectively separated. The air is discharged from the first outlet 3, and the circulation is repeated, the water and the air are continuously separated until the air in the liquid channel 6 and the pump cavity 9 is exhausted, negative pressure is formed in the pump cavity 9, and self-suction is completed under the action of the atmospheric pressure. It is worth explaining that the gas-liquid mixture is baffled through multiple times of collision, the gas-liquid separation efficiency is greatly improved, and the self-priming pump can rapidly complete self-priming. In addition, in the process, the gas-liquid mixture in the pump cavity 9 enters the liquid inlet channel 6 from the backflow inlet 16, and negative pressure is formed in the liquid inlet channel 6, so that liquid can enter the liquid inlet channel 6 from the first liquid inlet 1.
The present application has been described in detail above, and specific examples thereof are used herein to explain the principles and implementations of the present application, which are presented solely to aid in understanding the present application and its core concepts. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
Claims (17)
1. The self-priming pump is characterized by comprising a pump body, wherein a pump cavity (9) and an impeller chamber are arranged in the pump body, the impeller chamber is provided with an impeller and a guide vane disc (4), the guide vane disc (4) is arranged outside the impeller, the guide vane disc (4) is provided with a plurality of guide vanes (17), two adjacent guide vanes (17) form a guide flow channel (22), a guide vane outlet (21) is arranged on the guide flow channel (22), and a labyrinth gas-liquid separation channel is arranged between the guide vane outlet (21) and the pump cavity (9); be provided with inlet channel (6) in pump chamber (9), be provided with backflow inlet (16) on inlet channel (6), pump chamber (9) communicate with each other with inlet channel (6) through backflow inlet (16).
2. The self-primer pump of claim 1 wherein a gas-liquid separation assembly is disposed within the pump chamber (9), the gas-liquid separation assembly including a water dam (11), the labyrinth gas-liquid separation passage being disposed between the vane outlet (21) and the water dam (11).
3. The self-primer pump of claim 2 wherein, the gas-liquid separation assembly further comprises a partition plate (12) and a shroud plate (10), the partition plate (12) is of a disk shape, the partition plate (12) and the water baffle plate (11) are connected through the shroud plate (10), and the partition plate (12), the shroud plate (10) and the water baffle plate (11) form a gas-liquid separation chamber (5).
4. The self-primer pump according to claim 2, wherein the gas-liquid separation assembly further comprises a partition plate (12), the partition plate (12) is of a disc shape, the lower edge of the water baffle (11) is attached to the bottom of the pump cavity (9), and the water baffle (11), the partition plate (12) and the bottom of the pump cavity (9) form a gas-liquid separation cavity (5).
5. The self-priming pump of any one of the claims 3 or 4, wherein the partition plate (12) is provided with a first working hole (14), the water baffle plate (11) is provided with a second working hole (15), and the liquid inlet channel (6) penetrates through the first working hole (14) and the second working hole (15); the first working hole (14) has a larger diameter than the second working hole (15).
6. A self-primer pump according to claim 3 wherein the bottom portion of the gas-liquid separation chamber (5) adjacent to the pump chamber (9) is closed, a gap is provided between the bottom of the gas-liquid separation chamber (5) and the bottom of the pump chamber (9), and an opening is provided in the gas-liquid separation chamber (5) adjacent to the upper portion of the pump chamber (9).
7. The self-priming pump of claim 1, wherein the vane guide disc (4) is a disc, the size of the vane guide disc (4) is matched with that of the partition plate (12), and the vane guide disc (4) is provided with a first mounting hole for mounting an impeller.
8. The self-priming pump of claim 7, wherein a plurality of first protrusions (13) are arranged between the partition plate (12) and the guide vane disk (4), the first protrusions (13) are uniformly distributed along the circumferential direction of the disk shape, and guide vane outlets (21) on the guide vane disk (4) are arranged opposite to the partition plate (12).
9. The self-primer pump of claim 8 wherein said first projection (13) is a bar-like projection, said first projection (13) being disposed opposite said vane disk (4).
10. A self-primer pump according to claim 9 wherein the baffle (12) is fixedly attached to said first boss (13).
11. A self-primer pump according to claim 9 wherein the vane disk (4) is fixedly attached to said first boss (13).
12. A self-primer pump according to claim 1, characterized in that the flow guide (22) is provided with an inclined surface, and the inclined surface is used for enabling the liquid thrown out by the impeller to enter the guide vane outlet (21) more smoothly along the flow guide (22) and to flow out from the guide vane outlet (21).
13. A self-primer pump according to claim 12 wherein the ramp is provided on the side of the vane outlet (21) adjacent the impeller, and the vane outlet (21) is provided on the other side with the second projection (20).
14. A self-primer pump according to claim 1, wherein the inlet channel (6) is provided with a first inlet (1) at one end and a first outlet (8) at the other end, the first inlet (1) is provided on the pump body, the impeller is provided with a second inlet, and the second inlet is communicated with the first outlet (1).
15. A self-priming pump according to claim 14, characterized in that the return inlet (16) is arranged below the inlet channel (6), a protrusion (19) is arranged at a position of the inlet channel (6) close to the first inlet (1), the protrusion (19) is used for preventing the liquid in the inlet channel (6) from overflowing from the first inlet (1), and the diameter of the return inlet (16) is smaller than the diameter of any inlet channel (6).
16. A self-primer pump according to claim 1 wherein the pump body is provided with a first outlet (3) and a drain (7), the first outlet (3) being disposed above the pump body, the first outlet (3) being for the discharge of liquid and gas, the drain (7) being for the discharge of liquid from the pump chamber (9), the drain (7) being disposed at the bottom of the pump body.
17. The self-priming pump of claim 1, wherein the pump body is further provided with an irrigation port (2), and the irrigation port (2) is communicated with the pump cavity (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210811966.8A CN115182883B (en) | 2022-07-12 | 2022-07-12 | Self-priming pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210811966.8A CN115182883B (en) | 2022-07-12 | 2022-07-12 | Self-priming pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115182883A true CN115182883A (en) | 2022-10-14 |
| CN115182883B CN115182883B (en) | 2024-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210811966.8A Active CN115182883B (en) | 2022-07-12 | 2022-07-12 | Self-priming pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115182883B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5100289A (en) * | 1989-06-07 | 1992-03-31 | Ebara Corporation | Self-priming centrifugal pump |
| CN205669508U (en) * | 2016-06-02 | 2016-11-02 | 江苏大学 | A kind of stator improving jet-type centrifugal pump self-priming performance |
| CN108661919A (en) * | 2018-06-26 | 2018-10-16 | 中国计量大学 | Jet pump with gas-liquid separation device |
| CN113357159A (en) * | 2021-07-05 | 2021-09-07 | 陈荣国 | Self-suction type composite shield pump based on direct-current permanent magnet motor |
| CN217783836U (en) * | 2022-07-12 | 2022-11-11 | 宁波君禾智能科技有限公司 | Gas-liquid separation structure and self-priming pump used by same |
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2022
- 2022-07-12 CN CN202210811966.8A patent/CN115182883B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5100289A (en) * | 1989-06-07 | 1992-03-31 | Ebara Corporation | Self-priming centrifugal pump |
| CN205669508U (en) * | 2016-06-02 | 2016-11-02 | 江苏大学 | A kind of stator improving jet-type centrifugal pump self-priming performance |
| CN108661919A (en) * | 2018-06-26 | 2018-10-16 | 中国计量大学 | Jet pump with gas-liquid separation device |
| CN113357159A (en) * | 2021-07-05 | 2021-09-07 | 陈荣国 | Self-suction type composite shield pump based on direct-current permanent magnet motor |
| CN217783836U (en) * | 2022-07-12 | 2022-11-11 | 宁波君禾智能科技有限公司 | Gas-liquid separation structure and self-priming pump used by same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115182883B (en) | 2024-01-02 |
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