CN203067341U - Axial pump guide vane body with adjustable vane inlet angle - Google Patents
Axial pump guide vane body with adjustable vane inlet angle Download PDFInfo
- Publication number
- CN203067341U CN203067341U CN 201320049876 CN201320049876U CN203067341U CN 203067341 U CN203067341 U CN 203067341U CN 201320049876 CN201320049876 CN 201320049876 CN 201320049876 U CN201320049876 U CN 201320049876U CN 203067341 U CN203067341 U CN 203067341U
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- CN
- China
- Prior art keywords
- vane
- guide vane
- adjusting ring
- angle
- adjustable
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- Expired - Fee Related
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Abstract
The utility model provides an axial pump guide vane body with an adjustable vane inlet angle, which belongs to the technical field of hydraulic machinery. The axial pump guide vane body comprises a hub, an outer housing, guide vanes, an adjusting ring and an actuating unit, wherein the guide vanes are connected between the hub and the outer housing; the actuating unit comprises a gear assembly; each guide vane comprises a rear vane and a front vane with the adjustable angle; each rear vane is fixedly connected with the hub and the outer housing; each front vane is hinged with each rear vane; the adjusting ring is arranged around the outer housing; a pull rod is connected with the side surface of the middle part of each front vane; the other end of each pull rod penetrates and extends out of the outer housing and is hinged with the adjusting ring; and the outer side of the adjusting ring is connected with the gear assembly of the actuating unit. The length of each front vane is a quarter or one third of the length of each guide vane. The axial pump guide vane body has reasonable and simple structure as well as novel and skillful conception, and enables the angle of each front vane to be adjusted so as to adjust the inlet angle of each guide vane; and in addition, the pump efficiency can be increased by more than 2 percent compared with the conventional guide vane body applied to an axial pump.
Description
Technical field
The utility model relates to a kind of water pump, relates in particular to the axial-flow pump diffuser, belongs to the hydraulic machinery technical field.
Background technique
Axial-flow pump device is widely used, and in today of energy growing tension, the efficient that further improves axial-flow pump becomes the important content that energy saving in pumping station reduces discharging.The diffuser of axial-flow pump has adjustment from the effect of runner bucket outflow water (flow) direction, has material impact to improving the axial-flow pump hydraulic performance.The blade of traditional axial flow pump diffuser is fixed blade, and the entrance angle of stator blade flows out current by optimum operating condition (design conditions) and water pump runner bucket and realizes not having the requirement design that impact is docked.But, when off-design behaviour moves, the direction that flows out current from runner bucket can change, to no longer mate with fixing guide vane inlet angle, cause producing between the current of guide vane import and the guide vane import certain angle of attack, thereby cause the impact loss at vane inlet place, reduced the efficient of water pump in off-design behaviour.Generally speaking, axial-flow pump operates in the time of off-design behaviour far often more than the time that operates in design conditions.
The model utility content
The purpose of this utility model is exactly the defective at above-mentioned prior art, designed a kind of adjustable axial-flow pump diffuser of inlet blade angle degree that is applied to axial-flow pump, make the entrance angle of guide vane not only at optimum operating condition, and also can be consistent with the angle that enters the diffuser current in off-design behaviour, thereby the impact loss when having avoided off-design behaviour has improved the efficient of water pump off-design behaviour.
The purpose of this utility model is achieved in that the adjustable axial-flow pump diffuser of a kind of inlet blade angle degree, comprise wheel hub, shell and be connected wheel hub and shell between guide vane, it is characterized in that, be provided with Adjusting ring and the power mechanism that comprises gear drive, described guide vane is made up of the anterior leaflet of posterior leaflet and adjustable-angle, posterior leaflet is fixedlyed connected with shell with wheel hub, anterior leaflet is hinged on the posterior leaflet, described Adjusting ring be arranged on described shell around, the side at anterior leaflet middle part is connected with pull bar, the other end of this pull bar passes and stretches out shell and described Adjusting ring is articulated and connected, and the outside of Adjusting ring links to each other with the gear drive of described power mechanism.
Described anterior leaflet is 1/4～1/3 of described guide vane length.
The utility model is rational in infrastructure simple, novel ingenious, is easy to realize.Anterior leaflet is connected through the hinge on posterior leaflet, the angle of anterior leaflet can be regulated, power mechanism drives sense of rotation and the angle of regulating and controlling circle by gear drive, Adjusting ring is regulated the angle of anterior leaflet by the pull bar motion, thereby realizes the adjusting to the guide vane entrance angle.The utility model is compared with the diffuser that routine is applied to axial-flow pump, and the efficient of water pump off-design behaviour can improve more than 2%.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is A-A sectional structure schematic representation among Fig. 1.
Fig. 3 is the structural representation at I place among Fig. 1.
Fig. 4 is the schematic representation that the utility model guide vane inlet angle is regulated.
Fig. 5 is the structural representation at M place among Fig. 2.
Among the figure: 1 wheel hub, 2 shells, 3 anterior leaflet, 4 posterior leaflet, 5 hinges, 6 pull bars, 7 Adjusting rings, 8 power mechanisms.
Embodiment
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, the adjustable axial-flow pump diffuser of inlet blade angle degree, by wheel hub 1, shell 2, guide vane, Adjusting ring 7 and power mechanism 8 formations such as grade that comprise gear drive, guide vane is connected between wheel hub and the shell, described guide vane is made up of the anterior leaflet 3 of posterior leaflet 4 and adjustable-angle, posterior leaflet is fixedlyed connected with shell with wheel hub, anterior leaflet is hinged on the posterior leaflet, described Adjusting ring be arranged on described shell around, the side at anterior leaflet middle part is connected with pull bar 6, the other end of this pull bar passes and stretches out shell and described Adjusting ring is articulated and connected, the outside of Adjusting ring links to each other with the gear drive of described power mechanism, the outside of Adjusting ring and gear drive 8 engagements.Described anterior leaflet is 1/4～1/3 of described guide vane length.Power mechanism is by sense of rotation and the angle of gear drive driving regulating and controlling circle, and Adjusting ring is regulated the angle of anterior leaflet by the pull bar motion, thereby realizes the adjusting to the guide vane entrance angle.
Claims (2)
1. adjustable axial-flow pump diffuser of inlet blade angle degree, comprise wheel hub, shell and be connected wheel hub and shell between guide vane, it is characterized in that, be provided with Adjusting ring and the power mechanism that comprises gear drive, described guide vane is made up of the anterior leaflet of posterior leaflet and adjustable-angle, posterior leaflet is fixedlyed connected with shell with wheel hub, anterior leaflet is hinged on the posterior leaflet, described Adjusting ring be arranged on described shell around, the side at anterior leaflet middle part is connected with pull bar, the other end of this pull bar passes and stretches out shell and described Adjusting ring is articulated and connected, and the outside of Adjusting ring links to each other with the gear drive of described power mechanism.
2. the adjustable axial-flow pump diffuser of inlet blade angle degree according to claim 1 is characterized in that, described anterior leaflet is 1/4～1/3 of described guide vane length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320049876 CN203067341U (en) | 2013-01-30 | 2013-01-30 | Axial pump guide vane body with adjustable vane inlet angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320049876 CN203067341U (en) | 2013-01-30 | 2013-01-30 | Axial pump guide vane body with adjustable vane inlet angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203067341U true CN203067341U (en) | 2013-07-17 |
Family
ID=48766131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320049876 Expired - Fee Related CN203067341U (en) | 2013-01-30 | 2013-01-30 | Axial pump guide vane body with adjustable vane inlet angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203067341U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173460A (en) * | 2019-04-11 | 2019-08-27 | 江苏大学 | A kind of mixed-flow pump for the laying angle self-regulation that becomes a mandarin |
| CN113090577A (en) * | 2021-04-06 | 2021-07-09 | 江苏大学 | Centrifugal pump impeller with adjustable blade outlet angle |
-
2013
- 2013-01-30 CN CN 201320049876 patent/CN203067341U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173460A (en) * | 2019-04-11 | 2019-08-27 | 江苏大学 | A kind of mixed-flow pump for the laying angle self-regulation that becomes a mandarin |
| CN110173460B (en) * | 2019-04-11 | 2020-11-03 | 江苏大学 | Mixed flow pump with self-adjusting inflow placement angle |
| CN113090577A (en) * | 2021-04-06 | 2021-07-09 | 江苏大学 | Centrifugal pump impeller with adjustable blade outlet angle |
| CN113090577B (en) * | 2021-04-06 | 2023-02-17 | 江苏大学 | Centrifugal pump impeller with adjustable blade outlet angle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20160130 |
|
| EXPY | Termination of patent right or utility model |