CN216642577U

CN216642577U - Guide vane and centrifugal single-stage self-priming pump

Info

Publication number: CN216642577U
Application number: CN202220099897.8U
Authority: CN
Inventors: 邹志敏; 王师; 邵玉江; 卢威兴
Original assignee: Zhejiang Shimge Pump Co Ltd
Current assignee: Zhejiang Shimge Pump Co Ltd
Priority date: 2022-01-13
Filing date: 2022-01-13
Publication date: 2022-05-31
Anticipated expiration: 2032-01-13

Abstract

The utility model relates to a guide vane and a centrifugal single-stage self-priming pump, which solve the defects that the prior art realizes gas-liquid separation and completes self-priming by discharging a medium into a gas-liquid separation chamber in a pump body through an external mixing structure: the pump body has large volume, the whole machine is not harmonious, the cost is higher and the efficiency is lower. The technical scheme adopted is as follows: including a shaft section of thick bamboo, a backward flow section of thick bamboo, stator apron and stator sleeve, the shaft section of thick bamboo runs through stator apron and stator sleeve's middle part, set up two gas vents and a backward flow mouth on the stator apron, set up a liquid outlet on the stator sleeve, the gas-liquid separation room has in the stator sleeve, backward flow mouth and liquid outlet do respectively the opening at the both ends of a backward flow section of thick bamboo, the inner chamber of a backward flow section of thick bamboo passes through the liquid outlet with the gas-liquid separation room intercommunication. The method has the following effects: and a gas-liquid separation chamber is formed on the guide vane, so that the size of the pump body is reduced, the whole machine is more cooperative, the cost is reduced, and the self-suction efficiency is improved.

Description

Guide vane and centrifugal single-stage self-priming pump

Technical Field

The utility model relates to a guide vane and a centrifugal single-stage self-priming pump, in particular to a guide vane and a centrifugal single-stage self-priming pump.

Background

The existing centrifugal single-stage self-priming pump comprises a volute type pump body and an impeller arranged in the volute type pump body, the self-priming mode of the self-priming pump is a structure comprising a gas-liquid separation chamber in the volute type pump body, liquid enters an outer mixing type structure through an inlet on the pump body and discharges media into the gas-liquid separation chamber in the pump body through the impeller to realize gas-liquid separation and self priming, and the self-priming pump has the defects of large pump body volume, incongruity of the whole pump, high cost and low efficiency.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a guide vane and a centrifugal single-stage self-priming pump.

The technical purpose of the utility model is mainly solved by the following technical scheme: the utility model provides a guide vane, its characterized in that includes a shaft section of thick bamboo, a backward flow section of thick bamboo, guide vane apron and guide vane sleeve, the shaft section of thick bamboo runs through guide vane apron and guide vane telescopic middle part, set up two gas vents and a backward flow mouth on the guide vane apron, set up a liquid outlet on the guide vane sleeve, the gas-liquid separation room has in the guide vane sleeve, backward flow mouth and liquid outlet do respectively the opening at the both ends of a backward flow section of thick bamboo, the inner chamber of a backward flow section of thick bamboo passes through the liquid outlet with gas-liquid separation room intercommunication. And a gas-liquid separation chamber is formed on the guide vane, so that the volume of the pump body is reduced, the whole self-priming pump is more cooperative, the cost is reduced, and the self-priming efficiency is improved.

As a further improvement and supplement to the above technical solution, the present invention adopts the following technical measures: the stator apron deviates from the opening end setting of stator sleeve, the stator apron with stator sleeve interval sets up, the stator apron with interval between the stator sleeve forms gaseous accommodation chamber, the gas vent intercommunication gaseous accommodation chamber.

The backflow cylinder is arranged at a position close to the edge of the guide vane cover plate and the edge of the guide vane sleeve.

The backflow cylinder and the exhaust port are arranged in a deviating mode.

The lateral wall of the guide vane sleeve is provided with two vortex guide walls, the two vortex guide walls form a circumferential surrounding structure, the two ends corresponding to the vortex guide walls surround to form an air outlet channel and a liquid outlet channel respectively, the air outlet channel is communicated with the air outlet, and the liquid outlet channel is communicated with the liquid outlet.

The liquid outlet channel is circumferentially arranged, and the two vortex guide walls are jointed at the tail end of the liquid outlet channel.

The air outlet channel is circumferentially arranged, and the liquid outlet channel separates two corresponding parts of the vortex guide wall.

Set up on the surface of stator apron and spline the arch, spline protruding the setting and be in the backward flow section of thick bamboo corresponds the position, and/or set up on the telescopic lateral wall of stator and spline the rib, spline the rib setting and be in the corresponding position of gas vent also sets up with outlet channel's correspondence.

The shaft cylinder, the backflow cylinder, the guide vane cover plate and the guide vane sleeve are of an integrated structure.

The utility model provides a centrifugal single-stage self priming pump, includes the pump casing, sets up impeller in the pump casing, with impeller complex stator, its characterized in that the stator is foretell a stator.

The utility model has the following beneficial effects: and a gas-liquid separation chamber is formed on the guide vane, so that the size of the pump body is reduced, the whole machine is more cooperative, the cost is reduced, and the self-suction efficiency is improved.

Drawings

Fig. 1 is a schematic structural view of a guide vane according to the present invention.

Fig. 2 is a rear view schematically showing the state of fig. 1.

Fig. 3 is a schematic top view of the state of fig. 1.

Fig. 4 is a schematic perspective view of a guide vane according to the present invention.

Fig. 5 is a schematic view of the structure of fig. 4 from another view angle.

FIG. 6 is a schematic illustration of an exploded construction of a centrifugal single stage self-primer pump in accordance with the present invention.

Fig. 7 is a schematic view of a pump body according to the present invention.

Detailed Description

The technical scheme of the utility model is further specifically described by the following embodiments and the accompanying drawings.

Example (b): as shown in fig. 1-5, a guide vane 8, including an axle barrel 1, a backward flow section of thick bamboo 2, a guide vane apron 3 and a guide vane sleeve 4, axle barrel 1 runs through the middle part of guide vane apron 3 and guide vane sleeve 4, set up two gas vents 31 and a backward flow mouth 32 on the guide vane apron 3, set up a liquid outlet 41 on the guide vane sleeve 4, gas-liquid separation chamber 42 has in the guide vane sleeve, backward flow mouth 32 and liquid outlet 42 do respectively the opening at the both ends of backward flow section of thick bamboo 2, the inner chamber of backward flow section of thick bamboo 2 passes through liquid outlet 42 with gas-liquid separation chamber 41 intercommunication. The gas-liquid separation chamber is formed on the guide vane, and the gas-liquid separation is completed between the periphery of the impeller and the guide vane sleeve 4, so that the volume of the pump body is reduced (in the prior art, the gas-liquid separation chamber is arranged in the pump body, the gas-liquid separation chamber is not arranged on the guide vane, and the volume of the pump body is relatively large), the whole self-priming pump is more cooperative, the cost is reduced, and the self-priming efficiency is improved.

In order to facilitate production, processing and assembly, the shaft cylinder 1, the backflow cylinder 2, the guide vane cover plate 3 and the guide vane sleeve 4 are of an integrated structure.

Further optimize, the stator apron 3 deviates from the open end setting of stator sleeve 4, stator apron 3 with stator sleeve 4 interval sets up, stator apron with interval between the stator sleeve forms gaseous accommodation chamber 5, gas vent 31 intercommunication gaseous accommodation chamber. When the stator is applied to centrifugal single-stage self priming pump, the external diameter of stator and the internal diameter adaptation of the pump body, the pump body and the inner wall that gaseous chamber 5 corresponds the position surround gaseous chamber 5, make the gas in the gaseous chamber 5 only can discharge the cavity of the pump body through gas vent 31 in, discharge outside the pump body by gas outlet 62 on the pump body again.

The backflow cylinder 2 is arranged at a position close to the edge of the guide vane cover plate 3 and the edge of the guide vane sleeve 4. The backflow cylinder 2 is arranged away from the exhaust port 31. When the stator is applied to centrifugal single-stage self priming pump, the axis level of stator is placed, and gas vent 31 is located the top position, and backward flow section of thick bamboo 2 is located the below position.

The lateral wall of the guide vane sleeve is two vortex guide walls 43, the vortex guide walls form a circumferential surrounding structure, two ends corresponding to the vortex guide walls surround to form an air outlet channel 44 and a liquid outlet channel 45 respectively, the air outlet channel 44 is communicated with the air outlet 31, and the liquid outlet channel 45 is communicated with the liquid outlet 41. The telescopic inner chamber of stator is gas, liquid separation chamber, and the telescopic lateral wall of stator is the vortex guide wall, and water vapor mixture is at stator sleeve internal rotation motion, and gas is light, and liquid is heavy, autosegregation, and gas passes through the gas vent discharge stator sleeve of top, and liquid flows back through the backward flow section of thick bamboo of below, passes through the section of thick bamboo of axle and gets into the impeller again.

In further detail, the liquid outlet channel 45 and the gas outlet channel 44 are circumferentially arranged, the liquid outlet channel 45 and the gas outlet channel 44 are perpendicular to the axis of the guide vane sleeve, and the central line of the liquid outlet and the central line of the gas outlet are both parallel to the axis of the guide vane sleeve. Namely:

the liquid outlet channel 45 is circumferentially arranged, and the two vortex guide walls are connected with the tail end of the liquid outlet channel, so that liquid can be conveniently converged at the liquid outlet 41 and flows out of the guide vane through the backflow cylinder.

The air outlet channel 44 is circumferentially arranged, and the liquid outlet channel separates two corresponding parts of the vortex guide wall.

Preferably, in order to limit the rotation stopping and radial displacement of the guide vane, a rotation stopping protrusion 32 is arranged on the outer surface of the guide vane cover plate, the rotation stopping protrusion is arranged at the corresponding position of the backflow cylinder, and/or a rotation stopping rib 46 is arranged on the side wall of the guide vane sleeve, and the rotation stopping rib 46 is arranged at the corresponding position of the air outlet channel.

As shown in fig. 6 and 7, a centrifugal single-stage self-priming pump includes a pump housing 6, an impeller 7 disposed in the pump housing, and a guide vane 8 engaged with the impeller, wherein the guide vane 8 is one of the above-mentioned guide vanes.

The inner wall of the pump housing 7 is provided with a rotation stopping recess 61, the rotation stopping protrusion 32 is inserted into the rotation stopping recess 61, and a guide rib 63 for guiding the air flow to the air outlet 62 is further provided in the pump housing 7

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention. In the above embodiments, the present invention may be variously modified and changed. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a guide vane, its characterized in that includes a shaft section of thick bamboo, a backward flow section of thick bamboo, guide vane apron and guide vane sleeve, the shaft section of thick bamboo runs through guide vane apron and guide vane telescopic middle part, set up two gas vents and a backward flow mouth on the guide vane apron, set up a liquid outlet on the guide vane sleeve, the gas-liquid separation room has in the guide vane sleeve, backward flow mouth and liquid outlet do respectively the opening at the both ends of a backward flow section of thick bamboo, the inner chamber of a backward flow section of thick bamboo passes through the liquid outlet with gas-liquid separation room intercommunication.

2. A guide vane according to claim 1, characterized in that the guide vane cover plate is arranged away from the open end of the guide vane sleeve, the guide vane cover plate and the guide vane sleeve are arranged at intervals, the intervals between the guide vane cover plate and the guide vane sleeve form gas accommodation chambers, and the gas outlet communicates with the gas accommodation chambers.

3. A guide vane according to claim 1, characterized in that the return flow cartridge is arranged close to the rim of the guide vane cover plate and the rim of the guide vane sleeve.

4. A guide vane according to claim 1, 2 or 3, characterized in that the return duct is arranged facing away from the exhaust port.

5. The guide vane according to claim 1, 2 or 3, wherein the side wall of the guide vane sleeve is formed by two vortex guide walls, the two vortex guide walls form a circumferential enclosing structure, two corresponding ends of the two vortex guide walls enclose to form an air outlet channel and a liquid outlet channel, respectively, the air outlet channel is communicated with the air outlet, and the liquid outlet channel is communicated with the liquid outlet.

6. A guide vane according to claim 5, characterized in that the outlet channel is arranged circumferentially and two of the swirl guide walls join at the trailing end of the outlet channel.

7. The guide vane according to claim 5, wherein the outlet channel is circumferentially disposed, and the outlet channel separates two corresponding portions of the vortex guide wall.

8. A guide vane according to claim 1, 2 or 3, characterized in that the guide vane cover plate is provided with a rotation stopping protrusion on the outer surface, the rotation stopping protrusion is provided on the corresponding part of the backflow barrel, and/or the guide vane sleeve is provided with a rotation stopping rib on the side wall, and the rotation stopping rib is provided on the corresponding part of the exhaust port.

9. A guide vane according to claim 1, 2 or 3, characterized in that the shaft cylinder, the return cylinder, the guide vane cover plate and the guide vane sleeve are of one piece construction.

10. A centrifugal single stage self-priming pump comprising a pump casing, an impeller disposed within said pump casing, and a guide vane cooperating with said impeller, wherein said guide vane is a guide vane according to any one of claims 1 to 9.