CN217783836U

CN217783836U - Gas-liquid separation structure and self-priming pump used by same

Info

Publication number: CN217783836U
Application number: CN202221777442.3U
Authority: CN
Inventors: 张君波; 杨克; 洪利兵
Original assignee: Ningbo Junhe Intelligent Technology Co ltd
Current assignee: Ningbo Junhe Intelligent Technology Co ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-11-11
Anticipated expiration: 2032-07-12

Abstract

The utility model relates to the technical field of gas-liquid separation, in particular to a gas-liquid separation structure and a self-priming pump used by the same, which solve the problems of more complex structure and lower self-priming efficiency of the self-priming pump in the prior art, and the gas-liquid separation structure comprises a gas-liquid separation assembly and an impeller chamber, wherein the gas-liquid separation assembly comprises a water baffle, the impeller chamber is provided with an impeller and a guide vane disc, the guide vane disc is provided with a plurality of guide vanes, the guide vane disc is arranged outside the impeller, two adjacent guide vanes form a guide channel, a guide vane outlet is arranged on the guide channel, and a labyrinth gas-liquid separation channel is arranged between the guide vane outlet and the water baffle; a self-priming pump comprises a pump body, wherein a pump cavity and the gas-liquid separation structure are arranged in the pump body.

Description

Gas-liquid separation structure and self-priming pump used by same

Technical Field

The disclosure relates to the technical field of gas-liquid separation, in particular to a gas-liquid separation structure and a self-priming pump used by the same.

Background

Centrifugal pumps and self-priming pumps are pump types commonly used in industrial production, and centrifugal pumps are fluid machines which transmit liquid by means of centrifugal force generated by rotation of impellers, and are widely applied to the fields of urban sewage discharge, farmland irrigation, petroleum transportation, marine ships, chemical industry and the like. The self-priming pump and the centrifugal pump discharge water through the operation of an impeller, and the self-priming pump is a special centrifugal pump, has a self-priming function and is also called as a self-priming centrifugal pump. The self-sucking pump has the advantages of compact structure, convenient operation, stable operation, easy maintenance, high efficiency, long service life, strong self-sucking capability and the like, can disperse water into tiny raindrops for spraying, is a good machine tool for farms, nurseries, orchards and vegetable gardens, is mostly matched with an internal combustion engine, is arranged on a movable trolley, and is suitable for field operation.

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 the 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 does not need 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 adopt self-sucking pumps made of different materials.

The self-priming pump in the prior art has a complex structure and low self-priming efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model provides a simple structure, from inhaling efficient gas-liquid separation structure and self priming pump that uses to the problem that self priming pump structure is comparatively complicated among the prior art, self priming efficiency is lower.

The technical scheme adopted by the disclosure for solving the technical problems is as follows: the utility model provides a gas-liquid separation structure, includes gas-liquid separation subassembly and impeller chamber, the gas-liquid separation subassembly includes the breakwater, the impeller chamber is provided with impeller and stator dish, the stator dish is provided with a plurality of stator, the setting of stator dish is outside at the impeller, and two adjacent stator form the water conservancy diversion way, be provided with the stator export on the water conservancy diversion way, be provided with maze gas-liquid separation passageway between stator export and the breakwater.

In some embodiments, the gas-liquid separation assembly further comprises a disc-shaped partition plate, the lower edge of the water baffle is attached to the bottom of a pump cavity to which the gas-liquid separation assembly is applied, 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 baffle plate and a disc-shaped baffle plate, the baffle plate and the water baffle plate are connected through the baffle plate, and the baffle plate, the baffle plate and the water baffle plate form a gas-liquid separation chamber.

Further, the guide vane disc is of a disc shape, the size of the guide vane disc is matched with that of the gas-liquid separation assembly partition plate, and the edge of the guide vane disc is attached to the partition plate.

Furthermore, a first bulge is arranged between the partition plate and the guide vane disc, the first bulge is arranged right opposite to the guide vane disc, a first mounting hole is formed in the guide vane disc, and the first mounting hole is used for mounting an impeller; the guide vane outlet on the guide vane disc is arranged right opposite to the partition plate.

Furthermore, the plurality of first bulges are uniformly distributed along the circumferential direction of the disc shape, and the first bulges are strip-shaped bulges.

In some embodiments, the first protrusion and the separator are fixedly connected.

In some embodiments, the first protrusion and the vane disk are fixedly connected.

Furthermore, an inclined plane is arranged on the guide channel and used for enabling liquid thrown out by the impeller to enter the guide vane outlet through the inclined plane 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.

A self-priming pump comprises a pump body, wherein a pump cavity is arranged in the pump body, and at least part of a gas-liquid separation structure is arranged in the pump cavity.

Further, the gas-liquid separation assembly is arranged in the pump cavity, the impeller chamber is arranged outside the pump cavity, and the gas-liquid separation cavity is provided with an opening close to the upper part of the pump cavity.

Further, be provided with inlet channel in the pump chamber, 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.

Furthermore, a first working hole is formed in the center of 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.

Compared with the existing product, the beneficial effects of the present disclosure are that: the gas-liquid separation structure is provided with a labyrinth gas-liquid separation channel, so that a gas-liquid mixture can be baffled for multiple times in the labyrinth gas-liquid separation channel, and the gas-liquid mixture can be quickly and effectively separated; the self-priming pump is provided with the gas-liquid separation structure, and the gas-liquid mixture in the pump chamber is through collision baffling many times, has improved gas-liquid separation's efficiency greatly for the completion that self-priming pump can be quick is from inhaling.

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 conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.

FIG. 1 is one of the cross-sectional views of a gas-liquid separation arrangement of the present disclosure for use with a self-primer pump;

FIG. 2 is one of the schematic structural views of a gas-liquid separation chamber of the present disclosure;

FIG. 3 is a second schematic view of the gas-liquid separation chamber 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 configuration of the present disclosure;

FIG. 6 is a second cross-sectional view of a gas-liquid separation arrangement of the present disclosure in use on a self-primer pump;

FIG. 7 is a third cross-sectional view of a gas-liquid separation arrangement of the present disclosure in use on a self-primer pump.

Description of 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 discharge port; 8. a first liquid outlet; 9. a pump chamber; 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; 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 in the following 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 to be understood 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 disclosure of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships that are based on those shown in the drawings, which are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the terms described above should not be considered limiting to the present invention.

An embodiment of the present disclosure discloses a gas-liquid separation structure, which is shown in fig. 1 to 6.

A gas-liquid separation structure comprises a gas-liquid separation component and an impeller chamber, wherein the impeller chamber is provided with an impeller 17 and a guide vane disk 4, the impeller is a centrifugal impeller, and the centrifugal impeller applies work by utilizing centrifugal force to improve the pressure of air. Guide vane disk 4 sets up outside the impeller, and the gas-liquid separation subassembly includes breakwater 11, bounding wall 10 and baffle 12, and baffle 12 includes annular bottom surface and the annular arch of winding the peripheral setting of bottom surface, and baffle 12, bounding wall 10 and breakwater 11 form gas-liquid separation chamber 5, and guide vane disk 4 is provided with a plurality of stator 17, forms water conservancy diversion way 22 between two adjacent stator 17, is provided with stator export 21 on the water conservancy diversion way 22, is provided with maze gas-liquid separation passageway between stator export 21 and the breakwater 11.

It is worth to be noted that the guide vane disk 4 is of a disk shape, the size of the guide vane disk 4 is matched with that of the partition plate 12, and the edge of the guide vane disk 4 is attached to the annular protrusion of the partition plate 12. The guide vane outlet 21 is arranged on the guide vane 22, the guide vane outlet 21 is arranged at the tail part of the guide vane 22, the guide vane outlet 21 is uniformly distributed along the circumferential direction, the guide vane outlet 21 is circular, elliptical or polygonal, the shape and the size of each guide vane outlet 21 are consistent, and the specific shape and the size of the guide vane outlet 21 are not limited. 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.

Be provided with 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, and it is noted that, stator export 21 on the stator dish 4 just sets up baffle 12.

In some embodiments, the first protrusion 13 and the partition 12 are fixedly connected.

In some embodiments, the first protrusion 13 and the vane disk 4 are fixedly connected.

The guide flow passage 22 is provided with a downward inclined surface, and the inclined surface is used for enabling liquid thrown out by the impeller to enter the guide vane outlet 21 along the guide flow passage 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 the second protrusion 20 is disposed at the tail of the guide vane outlet 21, 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 collides with the second protrusion 20 and is finally deflected back to the guide vane outlet 21. In addition, the setting of second arch 20 makes liquid through extra collision velocity of flow slower, and the gas velocity of flow is fast not influenced for gas-liquid separation effect is better.

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 gas-liquid separation structure works, a gas-liquid mixture enters the diversion channel 22 under the action of centrifugal force of the impeller, then collides with the second protrusion 20, flows out from the guide vane outlet 21, collides with the partition plate 12, collides with the first protrusion 13, enters the gas-liquid separation cavity 5, and collides with the water baffle 11. Because the flow speed of the gas is faster than that of the liquid, the gas-liquid mixture can be quickly and effectively separated through four times of collision baffling, namely a labyrinth gas-liquid separation channel.

As shown in fig. 7, in another embodiment of the present disclosure, the gas-liquid separation assembly includes a water baffle 11 and a partition 12, the water baffle 11 is fixedly connected to the liquid inlet channel 6, the lower end of the water baffle 11 is attached to the bottom of the pump cavity 9, the partition 12, the water baffle 11 and the bottom of the pump cavity 9 form a gas-liquid separation chamber 5, and other portions are the same as those in the above embodiment.

Another embodiment of this application discloses a self priming pump, as shown in fig. 1 and fig. 6, including the pump body, be provided with pump chamber 9 in the pump body and the above gas-liquid separation structure, wherein gas-liquid separation subassembly sets up in pump chamber 9, and the impeller chamber sets up outside pump chamber 9, and gas-liquid separation chamber 5 is provided with the opening near the upper portion of pump chamber 9 for discharge gas-liquid separation chamber 5 with gas and liquid.

As shown in fig. 2, 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 can form small bubbles in the separation hole, then the small bubbles are gathered into larger bubbles, when the size of the bubbles is large to a certain extent, the bubbles can move upwards, and finally the bubbles are discharged from the first outlet 3, 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.

Still be provided with inlet channel 6 in the pump chamber 9, inlet channel 6 passes the gas-liquid separation subassembly, and inlet channel 6 one end is provided with first inlet 1, and the other end is provided with first liquid outlet 8, and first inlet 1 sets up on the pump body, and the impeller is provided with the second inlet, second inlet and 1 intercommunication of first liquid outlet. A return inlet 16 is provided below the inlet passage 6, the return inlet 16 being located adjacent the lower part of the pumping chamber 9 to facilitate the entry of fluid into the inlet passage 6 from the return inlet 16.

It should be noted that a first working hole 14 is formed in the partition plate 12 of the gas-liquid separation assembly, a second working hole 15 is formed in the water baffle 11, the aperture of the first working hole 14 is larger than that of the second working hole 15, and the liquid inlet channel penetrates through the first working hole 14 and the second working hole 15. The water baffle 11 is U-shaped, the gas-liquid separation cavity 5 is arranged in the pump cavity 9 with an opening facing upwards, and the partition plate 12 is disc-shaped, so that the shape of the gas-liquid separation assembly is adapted to the shape of the pump cavity 9.

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.

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.

When the self-priming pump 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 the water and the air to form high-speed fluid, the high-speed fluid enters the flow 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, then collides with the first protrusion 13, enters the gas-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 to explain that, the gas-liquid mixture is baffled through multiple times of collision, the efficiency of gas-liquid separation is greatly improved, and the self-priming pump can rapidly complete self-priming.

The present application has been described in detail, and the principles and embodiments of the present application have been described herein using specific examples, which are provided only to help understand the present application and its core concept. It should be noted that, for those skilled in the art, without departing from the principle of the present application, the present application can also make several improvements and modifications, and those improvements and modifications also fall into the protection scope of the claims of the present application.

Claims

1. The utility model provides a gas-liquid separation structure, its characterized in that includes gas-liquid separation subassembly and impeller chamber, gas-liquid separation subassembly includes breakwater (11), the impeller chamber is provided with impeller and stator dish (4), stator dish (4) are provided with a plurality of stator (17), stator dish (4) set up in the impeller outside, and two adjacent stator form water conservancy diversion way (22), be provided with stator export (21) on water conservancy diversion way (22), be provided with maze gas-liquid separation passageway between stator export (21) and breakwater (11).

2. The gas-liquid separation structure according to claim 1, wherein the gas-liquid separation assembly further comprises a disc-shaped partition plate (12), the partition plate (12) and the water guard plate (11) are connected through a shroud plate (10), and the partition plate (12), the shroud plate (10) and the water guard plate (11) form a gas-liquid separation chamber (5); or the water baffle (11), the partition plate (12) and the bottom of a pump cavity applied by the gas-liquid separation component form a gas-liquid separation cavity.

3. The gas-liquid separation structure of claim 2, wherein the guide vane disc (4) is of a disc shape, the size of the guide vane disc (4) is matched with that of the partition plate (12), a first bulge (13) is arranged between the partition plate (12) and the guide vane disc (4), the first bulge (13) is arranged opposite to the guide vane disc (4), the guide vane disc (4) is provided with a first mounting hole, and the first mounting hole is used for mounting an impeller; the guide vane outlet (21) on the guide vane disk (4) is arranged right opposite to the partition plate (12).

4. A gas-liquid separating structure according to claim 3, wherein the plurality of first protrusions (13) are uniformly distributed in a circumferential direction of the disk type, and the first protrusions (13) are stripe-shaped protrusions.

5. A gas-liquid separation structure according to claim 4, wherein the first projection (13) and the partition plate (12) are fixedly attached.

6. A gas-liquid separation structure according to claim 4, wherein the first projection (13) and the vane disk (4) are fixedly connected.

7. A self-priming pump, characterized in that, including the pump body, be provided with pump chamber (9) and a gas-liquid separation structure of any one of claims 1-6 in the pump body, gas-liquid separation structure at least part set up in pump chamber (9).

8. A self-primer pump according to claim 7 wherein the gas-liquid separation assembly is disposed within the pump chamber (9), the impeller chamber is disposed outside the pump chamber (9), and the gas-liquid separation chamber (5) is provided with an opening adjacent an upper portion of the pump chamber (9).

9. The self-priming pump according to claim 8, wherein a liquid inlet channel (6) is provided in the pump cavity (9), one end of the liquid inlet channel (6) is provided with a first liquid inlet (1), the other end is provided with a first liquid outlet (8), the first liquid inlet (1) is provided on the pump body, the impeller is provided with a second liquid inlet, and the second liquid inlet is communicated with the first liquid outlet (8); first work hole (14) have been seted up in baffle (12), second work hole (15) have been seted up in breakwater (11), liquid inlet channel (6) pass from first work hole (14) and second work hole (15).

10. A self-primer pump according to claim 7 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.