CN205154732U - Farmland is mixed flow pump for irrigation - Google Patents
Farmland is mixed flow pump for irrigation Download PDFInfo
- Publication number
- CN205154732U CN205154732U CN201520892145.7U CN201520892145U CN205154732U CN 205154732 U CN205154732 U CN 205154732U CN 201520892145 U CN201520892145 U CN 201520892145U CN 205154732 U CN205154732 U CN 205154732U
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- Prior art keywords
- impeller
- pump
- pump housing
- gear
- box
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- Expired - Fee Related
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Abstract
The utility model relates to a farmland is mixed flow pump for irrigation, including the spiral case formula pump body, the left side wall center of this pump body is equipped with one and advances water pipe connector, and pump body top has a play water pipe connector tangent with pump body inner chamber, and the right side wall center of the pump body is equipped with a gear box flange, its characterized in that: pump body inner chamber center is provided with an impeller, the pump body advance the water pipe connector center be provided with one with the metaplasm leaf of the coaxial setting of impeller, this metaplasm leaf is the radiativity on by the rachis and distributes three back blades and constitute, the one end of rachis is fixed through threaded connection with the impeller center. The utility model has the advantages of: utilize the metaplasm leaf to carry out the drainage to the water that advances the water pipe connector side, improve the pump discharge under the condition that does not promote impeller velocity, this structure is favorable to carrying out the low cost to original old mixed flow pump to be reformed transform, need not the advancing of pump station, the outlet pipe carries out whole transformation, and the transformation cycle is short, does not influence the normal use of pump house.
Description
Technical field
The utility model relates to a kind of mixed flow pump, particularly a kind of irrigation and water conservancy irrigation mixed flow pump.
Background technique
Normally by coming pumping water source at the mixed flow pump of pumping plant during field irrigation, it is a kind of pump between centrifugal pump and axial-flow pump.The pumping plant of current field irrigation is established in 60 mostly, the seventies, because prevailing condition is limited, the inlet tube and outlet tube bore of pumping plant is relatively little, and the large-scale mixed flow pump description of China's production is at that time little, for improving flow during type selecting, usually select the electric drilling match of relatively high power, cause low load with strong power phenomenon, and irrational raising pump rotary speed, the operating conditions of pump and operating point for design are departed from comparatively large, easily occur the cavitation corrosion of pump; Even and if improve rotating speed, due to pump body structure restriction, flow also cannot improve a lot.To tackle the problem at its root, then need to transform the pipeline of pumping plant and pump, required larger cost, and the transformation time is long, affects irrigation water.
Therefore, research and develop a kind ofly transform the time, irrigation and water conservancy irrigation mixed flow pump that flow is large is imperative.
Model utility content
The technical problems to be solved in the utility model be to provide a kind ofly to transform conveniently, irrigation and water conservancy irrigation mixed flow pump that flow is large.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of irrigation and water conservancy irrigation mixed flow pump, comprise the scroll casing type pump housing, the left side wall center of this pump housing is provided with a water inlet tube interface, pump housing top has an outlet pipe interface tangent with pump housing inner chamber, and the right side wall center of the pump housing is provided with a gear-box adpting flange; It is characterized in that: also comprise a gear-box, this gear-box is mounted on pump housing right side wall center by flange arrangement and gear-box adpting flange, the outer end of gear-box has an input shaft, input shaft is set with belt pulley, the inner of gear-box has an output shaft, this output shaft is provided with the impeller being positioned at pump housing lumen centers, a metaplasm leaf coaxially arranged with impeller is provided with at the water inlet tube interface center of the pump housing, this metaplasm leaf is made up of three back blades that rachis distributes in radiativity, and one end of rachis and impeller central are threaded connection fixing.
Preferably, described impeller is formed by arranging several helical twist blade between vane rings and impeller base, and the axis horizontal of vane rings and impeller base is arranged, and vane rings is positioned at the water inlet tube interface side of the pump housing, and impeller base is positioned at the gear-box adpting flange side of the pump housing.
Preferably, the external frame diameter of described metaplasm leaf is less than the external diameter of impeller.
The utility model has the advantage of:
In the utility model, a metaplasm leaf coaxially arranged with impeller is provided with at the water inlet tube interface center of the pump housing, metaplasm leaf is utilized to carry out drainage to the water of water inlet tube interface side, in advance fluid pumps in impeller entering the flowing state in the pump housing by alter fast, improves pump discharge when not promoting wheel speed; This structure is conducive to carrying out rebuilding at low cost to original old mixed flow pump, and without the need to carrying out Overall Reconstruction to the inlet tube and outlet tube of pumping plant, the transformation cycle is short, does not affect the normal use of pump house.It is compared to current emerging multistage mixed flow pump, and it does not adopt the coaxial impeller arranged, and is only increase by metaplasm leaf, and axial overall length is short, is convenient to transformation, can not relate to the adjustment of intake pipe.
The size that metaplasm leaf adopts is less than the diameter of impeller, makes it in drainage process, affect the pumping of rear impeller, guarantees pumping efficiency.
Accompanying drawing explanation
Fig. 1 is the utility model irrigation and water conservancy irrigation mixed flow pump structural representation.
Fig. 2 is blade wheel structure schematic diagram in the utility model.
Embodiment
As shown in Figure 1, comprise the scroll casing type pump housing 1, the left side wall center of this pump housing 1 is provided with a water inlet tube interface a, and the pump housing 1 top has an outlet pipe interface b tangent with the pump housing 1 inner chamber, and the right side wall center of the pump housing 1 is provided with a gear-box adpting flange 11.
This also comprises a gear-box 2, this gear-box 2 to be connected with gear-box adpting flange 11 by flange arrangement and then to be arranged on the pump housing 1 right side wall center, the outer end of gear-box 2 has an input shaft, input shaft is set with belt pulley 3, the inner of gear-box 2 has an output shaft, this output shaft is provided with the impeller 4 being positioned at the pump housing 1 lumen centers, a metaplasm leaf 5 coaxially arranged with impeller is provided with at the water inlet tube interface a center of the pump housing 1, this metaplasm leaf 5 is made up of three back blades that rachis distributes in radiativity, one end and impeller 4 center of rachis are threaded connection fixing.
In the utility model, as shown in Figure 2, impeller 4 is formed by arranging several helical twist blade 43 between vane rings 41 and impeller base 42, vane rings 41 is arranged with the axis horizontal of impeller base 42, and vane rings 41 is positioned at the water inlet tube interface side a of the pump housing 1, impeller base 42 is positioned at the gear-box adpting flange side 11 of the pump housing 1.
In order to avoid metaplasm leaf 5 pairs of impellers 4 cause other influences, the external frame diameter of suggestion metaplasm leaf 5 is less than the external diameter of impeller 4.
The contrast of mixed flow pump and old-fashioned single-stage mixed flow pump and multistage mixed flow pump in the utility model is adopted to be at 1 test pumping plant:
As can be seen from the above table, the mixed flow pump in the utility model and secondary mixed flow pump basically identical in equal-wattage, rotating speed down-off, and compare old-fashioned single-stage mixed flow pump, its flow promotes greatly.
More than show and describe basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. an irrigation and water conservancy irrigation mixed flow pump, comprises the scroll casing type pump housing, and the left side wall center of this pump housing is provided with a water inlet tube interface, and pump housing top has an outlet pipe interface tangent with pump housing inner chamber, and the right side wall center of the pump housing is provided with a gear-box adpting flange; It is characterized in that: also comprise a gear-box, this gear-box is mounted on pump housing right side wall center by flange arrangement and gear-box adpting flange, the outer end of gear-box has an input shaft, input shaft is set with belt pulley, the inner of gear-box has an output shaft, this output shaft is provided with the impeller being positioned at pump housing lumen centers, a metaplasm leaf coaxially arranged with impeller is provided with at the water inlet tube interface center of the pump housing, this metaplasm leaf is made up of three back blades that rachis distributes in radiativity, and one end of rachis and impeller central are threaded connection fixing.
2. irrigation and water conservancy irrigation mixed flow pump according to claim 1, it is characterized in that: described impeller is formed by arranging several helical twist blade between vane rings and impeller base, the axis horizontal of vane rings and impeller base is arranged, and vane rings is positioned at the water inlet tube interface side of the pump housing, impeller base is positioned at the gear-box adpting flange side of the pump housing.
3. irrigation and water conservancy irrigation mixed flow pump according to claim 1, is characterized in that: the external frame diameter of described metaplasm leaf is less than the external diameter of impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520892145.7U CN205154732U (en) | 2015-11-11 | 2015-11-11 | Farmland is mixed flow pump for irrigation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520892145.7U CN205154732U (en) | 2015-11-11 | 2015-11-11 | Farmland is mixed flow pump for irrigation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205154732U true CN205154732U (en) | 2016-04-13 |
Family
ID=55690434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520892145.7U Expired - Fee Related CN205154732U (en) | 2015-11-11 | 2015-11-11 | Farmland is mixed flow pump for irrigation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205154732U (en) |
-
2015
- 2015-11-11 CN CN201520892145.7U patent/CN205154732U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20161111 |