CN204572559U - A kind of open type water inlet pool 1/4 elliptical horn pipe - Google Patents
A kind of open type water inlet pool 1/4 elliptical horn pipe Download PDFInfo
- Publication number
- CN204572559U CN204572559U CN201520194500.3U CN201520194500U CN204572559U CN 204572559 U CN204572559 U CN 204572559U CN 201520194500 U CN201520194500 U CN 201520194500U CN 204572559 U CN204572559 U CN 204572559U
- Authority
- CN
- China
- Prior art keywords
- horn pipe
- elliptical horn
- pipe
- suction sleeve
- oviduct
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a kind of open type water inlet pool 1/4 elliptical horn pipe, belong to open type water inlet pool inside trumpet pipe design field, the suction sleeve comprising oviduct and be connected with oviduct, it is characterized in that: described oviduct is 1/4 elliptical horn pipe, import and the outlet of 1/4 elliptical horn pipe are circle, the tube wall axial cross section of 1/4 elliptical horn pipe is 1/4 ellipse, oval vertical direction major axis is 1/3-1/2 times of suction sleeve diameter, oval substantially horizontal minor axis is 1/2 times of transverse, the outlet diameter of 1/4 elliptical horn pipe and suction sleeve equal diameters, the inlet diameter of 1/4 elliptical horn pipe is 1.5-2 times of suction sleeve diameter.Described elliptical horn pipe and suction sleeve screw thread screw or are welded to connect.By the utility model, have rectification effect good, improve the flow velocity uniformity in pipe, reduce the mouth of pipe hydraulic loss and make suction sleeve suck flow velocity be tending towards uniform effect.
Description
Technical field
The utility model relates to a kind of open type water inlet pool 1/4 elliptical horn pipe, belongs to open type water inlet pool inside trumpet pipe design field.
Background technique
Oviduct is the one section of steel tubing in different shapes water in water inlet pool directly being introduced impeller.Oviduct is nearest apart from water pump vane room, and its shape is the most responsive on the impact of pump performance.Bell-mouthed shape enter directly affecting current the pressure distribution of suction sleeve, flow rate of water flow all with degree etc.Whether the fluidised form of impeller inlet is smooth-going, very large to the performance impact of water pump, if the velocity flow profile that current enter impeller is uneven, will reduces the operational efficiency of water pump, and worsen cavitation performance.Should not produce whirlpool in this external oviduct, whirlpool can cause impeller inlet fluidised form disorderly, causes decrease in efficiency, and produces unit vibration, affect security of operation.
In the small and medium-sized pumping station technical innovation of decades in the past, a large amount of Test And Research Works has been done to open type water inlet flow channel, but the hydraulic characteristic on oviduct and the impact on water pump thereof are also studied not, produce and the problem of all non-pay abundant attention of the department of use.
Model utility content
The utility model is exactly for above-mentioned the deficiencies in the prior art, provide a kind of effectively can improve oviduct in open type water inlet pool fluidised form and the flow condition of impeller, smooth-going current, reduce hydraulic loss and do not bring out the open type water inlet pool 1/4 elliptical horn pipe of new whirlpool.
The technical solution of the utility model is, a kind of open type water inlet pool 1/4 elliptical horn pipe, the suction sleeve comprising oviduct and be connected with oviduct, it is characterized in that: described oviduct is 1/4 elliptical horn pipe, import and the outlet of 1/4 elliptical horn pipe are circle, the tube wall axial cross section of 1/4 elliptical horn pipe is 1/4 ellipse, oval vertical direction major axis is 1/3-1/2 times of suction sleeve diameter, oval substantially horizontal minor axis is 1/2 times of transverse, the outlet diameter of 1/4 elliptical horn pipe and suction sleeve equal diameters, the inlet diameter of 1/4 elliptical horn pipe is 1.5-2 times of suction sleeve diameter.
Described elliptical horn pipe and suction sleeve screw thread screw or are welded to connect.
The utility model rational in infrastructure simple, manufacture easy, easy to use, pass through the utility model, the object arranging 1/4 elliptical horn pipe is the flow velocity uniformity for improving in oviduct, reduce its hydraulic loss, and the guide functions strengthening oviduct makes impeller obtain better flow condition.
When water pump operation, part current enter oviduct from front, part current enter from both sides, some then walks around both sides, enter oviduct from behind, current turn in very short distance, and in order to provide good flow condition to impeller, promote the ride quality of water pump, oviduct is required to be it and provides uniform velocity flow profile.By the rectified action of 1/4 elliptical horn pipe, current flow velocity before entering suction sleeve is tending towards even and hydraulic loss is less.
Advantage of the present utility model:
The fluidised form in oviduct significantly can be improved by 1/4 elliptical horn pipe.1/4 elliptical horn pipe have rectification effect good, improve the flow velocity uniformity in pipe, reduce the mouth of pipe hydraulic loss and make suction sleeve suck flow velocity be tending towards uniform effect.The utility model patent is applied to pumping plant construction and upgrading, can effectively improve pumping station operation efficiency, improve pump-unit cavitation performance.Along with the construction of South-to-North Water Transfer Project and the enforcement of national small and medium-sized pumping station technical innovation, the water inlet pool fluidised form of up to a hundred pumping plants is had to need to improve altogether, by application and the enforcement of the utility model technology, larger economic benefit and social benefit can be obtained, be applicable to designing institute design adopt and in engineered middle enforcement.
Accompanying drawing explanation
Fig. 1 is the 3-D view of whole open type water inlet pool.
Fig. 2 is sectional view of the present utility model.
In figure: 11/4 elliptical horn pipe, 2 suction sleeves, 3 open type water inlet pools, R
1ellipse short shaft, R
2transverse.
Embodiment
Illustrate that the utility model is described in further detail below in conjunction with accompanying drawing and accompanying drawing.
A kind of open type water inlet pool 1/4 elliptical horn pipe, the suction sleeve 2 comprising oviduct and be connected with oviduct, described oviduct is 1/4 elliptical horn pipe 1, import and the outlet of 1/4 elliptical horn pipe 1 are circle, the tube wall axial cross section of 1/4 elliptical horn pipe 1 is 1/4 ellipse, oval vertical direction major axis is 1/3-1/2 times of suction sleeve 2 diameter, oval substantially horizontal minor axis is 1/2 times of transverse, the outlet diameter of 1/4 elliptical horn pipe 1 and suction sleeve 2 equal diameters, the inlet diameter of 1/4 elliptical horn pipe 1 is 1.5-2 times of suction sleeve 2 diameter.Wherein, described elliptical horn pipe 1 screws with suction sleeve 2 screw thread or is welded to connect.During concrete use, 1/4 elliptical horn pipe 1 is arranged in open type water inlet pool 3.
We can set D is suction sleeve 2 diameter, D
lbe the outlet diameter of 1/4 elliptical horn pipe 1, so, open type water inlet pool 1/4 elliptical horn pipe 1 design parameter is: import and outlet are circle; Tube wall axial cross section is 1/4 ellipse, oval vertical direction major axis R
2for 1/3-1/2D, corresponding D
lcan value 1.5-2D.Oval substantially horizontal minor axis R
1for 1/2R
2.
Claims (2)
1. an open type water inlet pool 1/4 elliptical horn pipe, the suction sleeve (2) comprising oviduct and be connected with oviduct, it is characterized in that: described oviduct is 1/4 elliptical horn pipe (1), import and the outlet of 1/4 elliptical horn pipe (1) are circle, the tube wall axial cross section of 1/4 elliptical horn pipe (1) is 1/4 ellipse, oval vertical direction major axis is 1/3-1/2 times of suction sleeve (2) diameter, oval substantially horizontal minor axis is 1/2 times of transverse, the outlet diameter of 1/4 elliptical horn pipe (1) and suction sleeve (2) equal diameters, the inlet diameter of 1/4 elliptical horn pipe (1) is 1.5-2 times of suction sleeve (2) diameter.
2. a kind of open type water inlet pool 1/4 elliptical horn pipe according to claim 1, is characterized in that: described elliptical horn pipe (1) and suction sleeve (2) screw thread screw or be welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520194500.3U CN204572559U (en) | 2015-04-01 | 2015-04-01 | A kind of open type water inlet pool 1/4 elliptical horn pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520194500.3U CN204572559U (en) | 2015-04-01 | 2015-04-01 | A kind of open type water inlet pool 1/4 elliptical horn pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204572559U true CN204572559U (en) | 2015-08-19 |
Family
ID=53865203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520194500.3U Expired - Fee Related CN204572559U (en) | 2015-04-01 | 2015-04-01 | A kind of open type water inlet pool 1/4 elliptical horn pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204572559U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740781A (en) * | 2017-09-28 | 2018-02-27 | 江苏大学 | A kind of single tube vertical long multistage pump water-inlet horn pipe Hydraulic Optimizing Design method |
| CN109185154A (en) * | 2018-09-25 | 2019-01-11 | 珠海凌达压缩机有限公司 | Pump assembly and compressor |
| CN115126446A (en) * | 2021-03-26 | 2022-09-30 | 中国石油化工股份有限公司 | Gas injection and brine discharge process pipe column for salt cavern gas storage |
-
2015
- 2015-04-01 CN CN201520194500.3U patent/CN204572559U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740781A (en) * | 2017-09-28 | 2018-02-27 | 江苏大学 | A kind of single tube vertical long multistage pump water-inlet horn pipe Hydraulic Optimizing Design method |
| CN109185154A (en) * | 2018-09-25 | 2019-01-11 | 珠海凌达压缩机有限公司 | Pump assembly and compressor |
| CN115126446A (en) * | 2021-03-26 | 2022-09-30 | 中国石油化工股份有限公司 | Gas injection and brine discharge process pipe column for salt cavern gas storage |
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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: 20150819 Termination date: 20180401 |