CN212225584U - Centrifugal mixed-flow impeller assembly and centrifugal mixed-flow vane pump - Google Patents
Centrifugal mixed-flow impeller assembly and centrifugal mixed-flow vane pump Download PDFInfo
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- CN212225584U CN212225584U CN202020711943.6U CN202020711943U CN212225584U CN 212225584 U CN212225584 U CN 212225584U CN 202020711943 U CN202020711943 U CN 202020711943U CN 212225584 U CN212225584 U CN 212225584U
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Abstract
The utility model discloses a centrifugation mixed flow impeller subassembly and centrifugation mixed flow impeller pump, centrifugation mixed flow impeller subassembly, including the front shroud, the back shroud, wheel hub and blade subassembly, the blade subassembly is connected with wheel hub' S outer periphery and presss from both sides and establishes between front shroud and back shroud, and the outer periphery of front shroud and back shroud is all crooked to the wheel hub direction, forms circular-arc outer edge, and the center department of front shroud is equipped with the inlet, and the periphery of inlet extends outside the back shroud dorsad, forms the arc runner that the longitudinal section is the S type between front shroud and the back shroud. Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses a centrifugation mixed flow impeller subassembly and centrifugation mixed flow impeller pump have the advantage of centrifugal pump and mixed flow pump concurrently, do not need the spiral case structure, and the structure is compacter, and is small, has reduced the civil engineering, has the advantage of higher lift simultaneously.
Description
Technical Field
The utility model belongs to the field of machinery, a impeller pump hydraulic model improves is related to, especially relates to a centrifugation mixed flow impeller subassembly and centrifugation mixed flow impeller pump.
Background
The traditional centrifugal pump has the advantage of high lift, the centrifugal pump comprises main components such as an impeller component and a volute, the whole structure area is large, the outlet of a rotating wheel is basically vertical to a transmission shaft, the outlet flows to the outlet through a guide vane in the volute, the outlet and the transmission shaft are approximately 90 degrees in space, and liquid cannot be directly conveyed along the axis direction.
Although the traditional mixed flow pump can convey liquid along the axis direction and has the advantage of small volume, the pump lift is small, and the requirement of a higher pump lift working condition cannot be met.
There is a great need for developing a water pump structure which has a small volume and a large lift and can convey liquid along the axial direction.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to not enough among the above-mentioned prior art: the traditional centrifugal pump has large lift and large volume, and can not directly convey liquid along the axial direction; although the traditional mixed flow pump can convey liquid along the axial direction and has the advantage of small volume, the traditional mixed flow pump has small lift and cannot meet the requirement of higher-lift working condition; the centrifugal mixed-flow impeller assembly and the centrifugal mixed-flow vane pump have small volume and large lift and can convey liquid along the axial direction.
In order to solve the technical problem, the utility model discloses a technical scheme is:
a centrifugal mixed-flow impeller assembly comprises a front cover plate, a rear cover plate, a hub and a blade assembly, wherein a shaft hole used for connecting a pump shaft is formed in the center of the hub, the blade assembly is connected with the outer circumferential surface of the hub and clamped between the front cover plate and the rear cover plate, the outer circumferential edges of the front cover plate and the rear cover plate are bent towards the hub to form an arc-shaped outer edge, a liquid inlet is formed in the center of the front cover plate, the circumferential edge of the liquid inlet extends outwards back to the rear cover plate, an arc-shaped flow channel with an S-shaped longitudinal section is formed between the front cover plate and the rear cover plate, the arc-shaped flow channel comprises an inlet section, a straight section and an outlet section, the inlet section is connected with a flow channel inlet separated by two blade assemblies, and.
The blade assembly comprises a centrifugal impeller blade and a mixed flow impeller blade, and the mixed flow impeller blade is arranged at one end of the centrifugal impeller blade close to the outlet of the flow channel.
The tail ends of the centrifugal impeller blades and the mixed flow impeller blades are of an integral structure which is arranged integrally, and the tail ends of the centrifugal impeller blades and the mixed flow impeller blades are in smooth transition.
The centrifugal impeller blades extend from the inlet section to the straight section, and the mixed-flow impeller blades are located at the outlet section.
The number and size of the blade assemblies is set according to the operating conditions of the desired operation.
The utility model provides a centrifugation mixed-flow impeller pump, including above-mentioned centrifugation mixed-flow impeller subassembly, still include the motive power, the drive shaft, impeller chamber and drain pipe, centrifugation mixed-flow impeller unit mount is in the drive shaft, the motive power passes through drive shaft drive centrifugation mixed-flow impeller subassembly, centrifugation mixed-flow impeller unit mount is in the impeller chamber, the circular-arc outer edge department of back shroud is connected with the arc transition pipe that is used for the water conservancy diversion, the longitudinal section of arc transition pipe is the splayed, connect the drain pipe on the arc transition pipe, the size and the shape of impeller chamber and the size and the shape looks adaptation of centrifugation mixed-flow impeller subassembly and arc transition pipe, impeller chamber upper portion is connected with the drain pipe.
A liquid guide flow channel is formed between the impeller chamber and the arc-shaped transition pipe, and a liquid outlet flow channel is formed between the liquid outlet pipe and the liquid guide circular pipe.
The pump shaft is positioned in the middle of the liquid guide circular pipe and is positioned through the bearing.
Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses a centrifugation mixed flow impeller subassembly and centrifugation mixed flow impeller pump have the advantage of centrifugal pump and mixed flow pump concurrently, liquid when impeller subassembly is high-speed rotatory, produce speed ability and pressure can, under the combined action of the inside runner of blade subassembly and blade structure, it flows along the axis direction to reach basic formation when exporting, liquid gets into out the liquid runner through leading the liquid runner, realize carrying liquid along the axis direction, do not need the spiral case structure, the structure is compacter, small, civil engineering has been reduced, the advantage that has higher lift simultaneously.
Drawings
Figure 1 is a schematic view of a conventional vertical scroll centrifugal pump,
figure 2 is a schematic view of the structure of a volute,
FIG. 3 is a schematic longitudinal sectional view of the centrifugal mixed-flow impeller assembly of the present invention,
FIG. 4 is a schematic structural view of a centrifugal mixed-flow impeller assembly;
FIG. 5 is a schematic structural view of a centrifugal mixed-flow impeller assembly blade;
fig. 6 is a schematic structural view of a centrifugal mixed-flow vane pump.
The impeller comprises a blade assembly 1, a hub 2, a rear cover plate 3, a front cover plate 4, an inlet section 5, a straight section 6, an outlet section 7, a runner inlet 8, a runner outlet 9, a water pump liquid inlet 10, an impeller chamber 11, a liquid guide runner 12, a pump shaft 13, a liquid outlet pipe 14 and a bearing 15.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
The following components are included in the figure: the device comprises a blade assembly 1, a hub 2, a rear cover plate 3, a front cover plate 4, an inlet section 5, a straight section 6, an outlet section 7, a runner inlet 8, a runner outlet 9, a water pump liquid inlet 10, an impeller chamber 11, a liquid guide runner 12, a pump shaft 13, a liquid outlet pipe 14 and a bearing 15.
As shown in figures 1 and 2, the plane of the outlet of the centrifugal pump of the traditional vertical volute is 90 degrees to the transmission shaft, if the outlet is upward, the outlet needs to be connected by adding an elbow, and the obvious area of the volute structure is larger.
As shown in fig. 3-5, a centrifugal mixed-flow impeller assembly includes a front cover plate, a rear cover plate, a hub and a blade assembly, wherein a shaft hole for connecting a pump shaft is formed in the center of the hub, the blade assembly is connected with the outer circumferential surface of the hub and clamped between the front cover plate and the rear cover plate, the outer circumferential edges of the front cover plate and the rear cover plate are both bent towards the hub to form an arc-shaped outer edge, a liquid inlet is formed in the center of the front cover plate, the circumferential edge of the liquid inlet extends outwards away from the rear cover plate, an arc-shaped flow passage with an S-shaped longitudinal section is formed between the front cover plate and the rear cover plate, the arc-shaped flow passage includes an inlet section, a straight section and an outlet section, the inlet section is connected with a flow passage inlet separated by two blade assemblies.
The blade assembly comprises a centrifugal impeller blade and a mixed flow impeller blade, and the mixed flow impeller blade is arranged at one end of the tail end of the centrifugal impeller blade, which is close to the outlet of the flow channel.
The end of the centrifugal impeller blade is connected with the mixed flow impeller blade, and the two blades are smoothly transited.
The centrifugal impeller blades extend from the inlet section to the straight section, and the mixed-flow impeller blades are located at the outlet section.
The number and size of the blade assemblies is set according to the operating conditions of the desired operation.
As shown in fig. 6, a centrifugal mixed-flow vane pump includes the above-mentioned centrifugal mixed-flow impeller assembly, and further includes a motive power, a driving shaft, an impeller chamber and a liquid outlet pipe, wherein the centrifugal mixed-flow impeller assembly is installed on the driving shaft, the motive power drives the centrifugal mixed-flow impeller assembly through the driving shaft, the centrifugal mixed-flow impeller assembly is installed in the impeller chamber, an arc-shaped transition pipe for guiding flow is connected to the arc-shaped outer edge of the back cover plate, the longitudinal section of the arc-shaped transition pipe is in a shape of a Chinese character ba, a liquid guiding circular pipe is connected to the arc-shaped transition pipe, the size and shape of the impeller chamber are matched with those of the centrifugal mixed-flow impeller assembly and the arc-shaped transition pipe, and.
A liquid guide flow channel is formed between the impeller chamber and the arc-shaped transition pipe, and a liquid outlet flow channel is formed between the liquid outlet pipe and the liquid guide circular pipe.
The pump shaft is positioned in the liquid guide circular tube and is positioned through a bearing.
The principle of operation of the centrifugal mixed-flow impeller assembly is as follows:
an arc-shaped flow passage with an S-shaped longitudinal section is formed between the front cover plate and the rear cover plate, the arc-shaped flow passage comprises an inlet section, a straight section and an outlet section, the inlet section forms a certain included angle with the axis, the straight section is approximately vertical to the axis, the outlet section forms a certain included angle with the axis, forms a certain angle with the straight section, is in smooth transition, the blade assembly comprises a centrifugal impeller blade and a mixed flow impeller blade, the centrifugal impeller blade extends from the inlet section to the straight section, the mixed flow impeller blade is positioned at the outlet section, the unique liquid flow passage structure and the blade structure enable the liquid to generate speed energy and pressure energy when the impeller assembly rotates at high speed, and when the liquid reaches the outlet of the flow channel, the liquid basically runs along the axis direction, and the liquid enters the liquid outlet flow channel through the liquid guide flow channel, so that the liquid is conveyed along the axis direction, a volute structure is not needed, the structure is more compact, the size is small, the civil engineering is reduced, and meanwhile, the centrifugal pump impeller has the characteristic of higher lift.
Claims (8)
1. A centrifugal mixed-flow impeller assembly characterized by: the pump comprises a front cover plate, a rear cover plate, a hub and a blade assembly, wherein a shaft hole used for being connected with a pump shaft is formed in the center of the hub, the blade assembly is connected with the outer circumferential surface of the hub and clamped between the front cover plate and the rear cover plate, the outer circumferential edges of the front cover plate and the rear cover plate are bent towards the direction of the hub to form an arc-shaped outer edge, a liquid inlet is formed in the center of the front cover plate, the circumferential edge of the liquid inlet extends outwards from the back cover plate, an arc-shaped flow channel with an S-shaped longitudinal section is formed between the front cover plate and the rear cover plate, the arc-shaped flow channel comprises an inlet section, a straight section and an outlet section, the inlet section is connected with a flow channel inlet.
2. The centrifugal mixed-flow impeller assembly of claim 1, wherein: the blade assembly comprises a centrifugal impeller blade and a mixed flow impeller blade, and the mixed flow impeller blade is arranged at one end of the centrifugal impeller blade close to the outlet of the flow channel.
3. The centrifugal mixed-flow impeller assembly of claim 2, wherein: the tail ends of the centrifugal impeller blades and the mixed flow impeller blades are of an integral structure which is arranged integrally, and the tail ends of the centrifugal impeller blades and the mixed flow impeller blades are in smooth transition.
4. The centrifugal mixed-flow impeller assembly of claim 2, wherein: the centrifugal impeller blades extend from the inlet section to the straight section, and the mixed-flow impeller blades are located at the outlet section.
5. The centrifugal mixed-flow impeller assembly of claim 1, wherein: the number and size of the blade assemblies is set according to the operating conditions of the desired operation.
6. A centrifugal mixed-flow vane pump is characterized in that: the centrifugal mixed-flow impeller assembly comprises a motive power, a driving shaft, an impeller chamber and a liquid outlet pipe, wherein the centrifugal mixed-flow impeller assembly is installed on the driving shaft, the motive power drives the centrifugal mixed-flow impeller assembly through the driving shaft, the centrifugal mixed-flow impeller assembly is installed in the impeller chamber, an arc-shaped transition pipe for guiding flow is connected to the arc-shaped outer edge of the rear cover plate, the longitudinal section of the arc-shaped transition pipe is in a splayed shape, a liquid guide circular pipe is connected to the arc-shaped transition pipe, the size and the shape of the impeller chamber are matched with those of the centrifugal mixed-flow impeller assembly and the arc-shaped transition pipe, and the upper portion of the impeller chamber is connected with the liquid outlet pipe.
7. The centrifugal mixed-flow vane pump of claim 6, wherein: a liquid guide flow channel is formed between the impeller chamber and the arc-shaped transition pipe, and a liquid outlet flow channel is formed between the liquid outlet pipe and the liquid guide circular pipe.
8. The centrifugal mixed-flow vane pump of claim 6, wherein: the pump shaft is positioned in the middle of the liquid guide circular pipe and is positioned through the bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020711943.6U CN212225584U (en) | 2020-05-06 | 2020-05-06 | Centrifugal mixed-flow impeller assembly and centrifugal mixed-flow vane pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020711943.6U CN212225584U (en) | 2020-05-06 | 2020-05-06 | Centrifugal mixed-flow impeller assembly and centrifugal mixed-flow vane pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212225584U true CN212225584U (en) | 2020-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020711943.6U Active CN212225584U (en) | 2020-05-06 | 2020-05-06 | Centrifugal mixed-flow impeller assembly and centrifugal mixed-flow vane pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212225584U (en) |
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2020
- 2020-05-06 CN CN202020711943.6U patent/CN212225584U/en active Active
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