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
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- 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
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 210000003101 oviduct Anatomy 0.000 claims 3
- 230000008676 import Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005086 pumping Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 230000009466 transformation Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
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Abstract
本实用新型涉及一种开敞式进水池1/4椭圆形喇叭管，属于开敞式进水池内喇叭管设计技术领域，包括喇叭管和与喇叭管连接的吸水管，其特征是：所述喇叭管为1/4椭圆形喇叭管，1/4椭圆形喇叭管的进口和出口均为圆形，1/4椭圆形喇叭管的管壁轴向截面为1/4椭圆，椭圆竖直方向长轴为吸水管直径的1/3-1/2倍，椭圆水平方向短轴为椭圆长轴的1/2倍，1/4椭圆形喇叭管的出口直径与吸水管直径相等，1/4椭圆形喇叭管的进口直径为吸水管直径的1.5-2倍。所述椭圆形喇叭管与吸水管螺纹旋紧或焊接连接。通过本实用新型，具有整流效果好、改善管中流速均匀度、减小管口的水力损失、并使吸水管吸入流速趋于均匀的作用。
The utility model relates to a 1/4 elliptical horn tube of an open water inlet pool, which belongs to the technical field of horn tube design in an open water inlet pool, and comprises a horn tube and a water suction pipe connected with the horn tube, and is characterized in that: The horn tube is a 1/4 oval horn tube, the inlet and outlet of the 1/4 oval horn tube are circular, the axial section of the wall of the 1/4 oval horn tube is a 1/4 ellipse, and the vertical direction of the ellipse The long axis is 1/3-1/2 times the diameter of the suction pipe, the short axis of the ellipse in the horizontal direction is 1/2 times the long axis of the ellipse, the outlet diameter of the 1/4 elliptical horn pipe is equal to the diameter of the suction pipe, 1/4 The inlet diameter of the elliptical trumpet pipe is 1.5-2 times the diameter of the suction pipe. The oval trumpet pipe is screwed or welded to the suction pipe. The utility model has the effects of good rectification effect, improved uniformity of the flow velocity in the pipe, reduced hydraulic loss at the mouth of the nozzle, and uniform suction flow velocity of the water suction pipe.
Description
技术领域technical field
本实用新型涉及一种开敞式进水池1/4椭圆形喇叭管，属于开敞式进水池内喇叭管设计技术领域。The utility model relates to a 1/4 oval trumpet tube of an open water inlet pool, which belongs to the technical field of trumpet tube design in an open water inlet pool.
背景技术Background technique
喇叭管是将进水池中的水直接引入叶轮的一段异型管。喇叭管距水泵叶轮室最近，其形状对水泵性能的影响最为敏感。喇叭口的形状将直接影响水流进入吸水管的压力分布、水流流速的均与度等。叶轮进口的流态是否平顺，对水泵的性能影响很大，若水流进入叶轮的流速分布不均，将会降低水泵的运行效率，并且恶化汽蚀性能。此外在喇叭管中不应产生漩涡，漩涡会造成叶轮进口流态紊乱，导致效率下降，并且产生机组振动，影响运行安全。The trumpet pipe is a special-shaped pipe that directly introduces the water in the inlet pool into the impeller. The trumpet tube is the closest to the impeller chamber of the water pump, and its shape has the most sensitive influence on the performance of the water pump. The shape of the bell mouth will directly affect the pressure distribution of the water flow into the suction pipe, the uniformity of the water flow velocity, etc. Whether the flow state at the impeller inlet is smooth or not has a great impact on the performance of the pump. If the flow velocity of the water entering the impeller is unevenly distributed, the operating efficiency of the pump will be reduced and the cavitation performance will be deteriorated. In addition, there should be no vortex in the trumpet tube. The vortex will cause the flow state at the inlet of the impeller to be disturbed, resulting in a decrease in efficiency, and vibration of the unit, which will affect the safety of operation.
在过去几十年的中小型泵站技术改造中，对开敞式进水流道做了大量的试验研究工作，然而对喇叭管的水力特性及其对水泵的影响还研究不够，生产和使用部门都未充分重视的问题。In the technical transformation of small and medium-sized pumping stations in the past few decades, a lot of experimental research work has been done on the open water inlet flow channel. However, the hydraulic characteristics of the trumpet tube and its influence on the water pump have not been studied enough. The production and use departments issues that have not been given sufficient attention.
实用新型内容Utility model content
本实用新型就是针对上述现有技术的不足，提供一种能有效改善开敞式进水池中喇叭管的流态以及叶轮的进水条件、平顺水流、减少水力损失、且不诱发新的漩涡的开敞式进水池1/4椭圆形喇叭管。The utility model aims at the deficiencies of the above-mentioned prior art, and provides a device that can effectively improve the flow state of the trumpet pipe in the open water inlet pool and the water inlet conditions of the impeller, smooth the water flow, reduce hydraulic loss, and not induce new vortexes. Open water inlet pool 1/4 oval trumpet tube.
本实用新型的技术方案是，一种开敞式进水池1/4椭圆形喇叭管，包括喇叭管和与喇叭管连接的吸水管，其特征是：所述喇叭管为1/4椭圆形喇叭管，1/4椭圆形喇叭管的进口和出口均为圆形，1/4椭圆形喇叭管的管壁轴向截面为1/4椭圆，椭圆竖直方向长轴为吸水管直径的1/3-1/2倍，椭圆水平方向短轴为椭圆长轴的1/2倍，1/4椭圆形喇叭管的出口直径与吸水管直径相等，1/4椭圆形喇叭管的进口直径为吸水管直径的1.5-2倍。The technical scheme of the present utility model is an open water inlet pool 1/4 elliptical horn tube, including a horn tube and a water suction pipe connected to the horn tube, characterized in that: the horn tube is a 1/4 elliptical horn The inlet and outlet of the 1/4 oval horn tube are circular, the axial section of the tube wall of the 1/4 oval horn tube is 1/4 ellipse, and the long axis of the ellipse in the vertical direction is 1/ of the diameter of the suction pipe 3-1/2 times, the minor axis of the ellipse in the horizontal direction is 1/2 times the major axis of the ellipse, the outlet diameter of the 1/4 oval horn tube is equal to the diameter of the water suction pipe, and the inlet diameter of the 1/4 oval horn tube is the water absorption 1.5-2 times the diameter of the tube.
所述椭圆形喇叭管与吸水管螺纹旋紧或焊接连接。The oval trumpet pipe is screwed or welded to the suction pipe.
本实用新型结构合理简单、生产制造容易、使用方便，通过本实用新型，设置1/4椭圆形喇叭管的目的是为改善喇叭管中的流速均匀度，减少其水力损失，并且增强喇叭管的导流作用使得叶轮获得更好的进水条件。The utility model has a reasonable and simple structure, is easy to manufacture, and is convenient to use. Through the utility model, the purpose of setting a 1/4 elliptical horn tube is to improve the uniformity of flow velocity in the horn tube, reduce its hydraulic loss, and enhance the strength of the horn tube. The diversion effect makes the impeller obtain better water inlet conditions.
在水泵运行时，一部分水流从正面进入喇叭管，一部分水流从两侧进入，还有一部分则绕过两侧，从后面进入喇叭管，水流在很短的距离内进行了转向，并且为了给叶轮提供较好的进水条件，提升水泵的运行性能，喇叭管需为其提供均匀的流速分布。通过1/4椭圆形喇叭管的整流作用，水流在进入吸水管前流速趋于均匀且水力损失较小。When the water pump is running, part of the water flow enters the horn tube from the front, part of the water flow enters from both sides, and some water flows around the sides and enters the horn tube from the back. To provide better water inlet conditions and improve the operating performance of the pump, the horn tube needs to provide it with a uniform flow velocity distribution. Through the rectification effect of the 1/4 oval trumpet tube, the flow rate of the water flow tends to be uniform and the hydraulic loss is small before entering the suction pipe.
本实用新型的优点：Advantage of the utility model:
通过1/4椭圆形喇叭管可显著改善喇叭管中的流态。1/4椭圆形喇叭管具有整流效果好、改善管中流速均匀度、减小管口的水力损失、并使吸水管吸入流速趋于均匀的作用。本实用新型专利应用于泵站建设与改造，可有效提高泵站运行效率，改善泵装置汽蚀性能。随着南水北调东线工程的建设和国家中小型泵站技术改造的实施，共计有上百座泵站的进水池流态需要改善，通过本实用新型技术的应用和实施，可取得较大的经济效益和社会效益，适用于设计院设计采用以及在工程改造中实施。The flow pattern in the horn tube can be significantly improved by the 1/4 oval horn tube. The 1/4 ellipse trumpet tube has good rectification effect, improves the uniformity of the flow velocity in the tube, reduces the hydraulic loss of the nozzle, and makes the suction flow rate of the suction pipe tend to be uniform. The utility model patent is applied to the construction and renovation of the pumping station, which can effectively improve the operating efficiency of the pumping station and improve the cavitation performance of the pumping device. With the construction of the east route project of the South-to-North Water Diversion Project and the implementation of the national small and medium-sized pumping station technical transformation, there are a total of hundreds of pumping stations whose water inlet tanks need to be improved. Through the application and implementation of the technology of the utility model, greater economic benefits can be achieved. Benefits and social benefits are applicable to design adoption by design institutes and implementation in engineering transformation.
附图说明Description of drawings
图1是整个开敞式进水池的三维视图。Figure 1 is a three-dimensional view of the entire open water inlet tank.
图2是本实用新型的截面图。Fig. 2 is a sectional view of the utility model.
图中：11/4椭圆形喇叭管、2吸水管、3开敞式进水池、R1椭圆短轴、R2椭圆长轴。In the figure: 11/4 elliptical trumpet pipe, 2 suction pipes, 3 open water inlet tanks, R 1 ellipse minor axis, R 2 ellipse major axis.
具体实施方式Detailed ways
下面结合附图和附图说明对本实用新型作进一步说明。Below in conjunction with accompanying drawing and description of drawings, the utility model will be further described.
一种开敞式进水池1/4椭圆形喇叭管，包括喇叭管和与喇叭管连接的吸水管2，所述喇叭管为1/4椭圆形喇叭管1，1/4椭圆形喇叭管1的进口和出口均为圆形，1/4椭圆形喇叭管1的管壁轴向截面为1/4椭圆，椭圆竖直方向长轴为吸水管2直径的1/3-1/2倍，椭圆水平方向短轴为椭圆长轴的1/2倍，1/4椭圆形喇叭管1的出口直径与吸水管2直径相等，1/4椭圆形喇叭管1的进口直径为吸水管2直径的1.5-2倍。其中，所述椭圆形喇叭管1与吸水管2螺纹旋紧或焊接连接。具体使用时，1/4椭圆形喇叭管1是设置在开敞式进水池3内的。A 1/4 elliptical horn tube of an open water inlet pool, comprising a horn tube and a water suction pipe 2 connected to the horn tube, the horn tube is a 1/4 elliptical horn tube 1, and a 1/4 elliptical horn tube 1 The inlet and outlet of the pipe are circular, the axial section of the pipe wall of the 1/4 elliptical trumpet pipe 1 is 1/4 ellipse, and the major axis of the ellipse in the vertical direction is 1/3-1/2 times of the diameter of the suction pipe 2, The minor axis in the horizontal direction of the ellipse is 1/2 times the major axis of the ellipse, the outlet diameter of the 1/4 oval horn tube 1 is equal to the diameter of the water suction pipe 2, and the inlet diameter of the 1/4 ellipse horn tube 1 is the diameter of the water suction tube 2 1.5-2 times. Wherein, the oval trumpet pipe 1 is screwed or welded to the water suction pipe 2 . During specific use, the 1/4 oval trumpet tube 1 is arranged in the open water inlet pool 3 .
我们可以设定D为吸水管2直径，DL为1/4椭圆形喇叭管1的出口直径，那么，开敞式进水池1/4椭圆形喇叭管1具体参数为：进口和出口均为圆形；管壁轴向截面为1/4椭圆，椭圆竖直方向长轴R2为1/3-1/2D，相应的DL可取值1.5-2D。椭圆水平方向短轴R1为1/2R2。We can set D to be the diameter of the water suction pipe 2, and D L to be the outlet diameter of the 1/4 elliptical horn tube 1. Then, the specific parameters of the 1/4 elliptical horn tube 1 of the open water inlet pool are: both the inlet and the outlet are Circular; the axial section of the pipe wall is a 1/4 ellipse, the major axis R 2 of the ellipse in the vertical direction is 1/3-1/2D, and the corresponding DL can take a value of 1.5-2D . The horizontal minor axis R 1 of the ellipse is 1/2 R 2 .
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| 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 |
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| CN201520194500.3U CN204572559U (en) | 2015-04-01 | 2015-04-01 | A kind of open type water inlet pool 1/4 elliptical horn pipe |
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| CN204572559U true CN204572559U (en) | 2015-08-19 |
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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 body subassembly and compressor |
| CN115126446A (en) * | 2021-03-26 | 2022-09-30 | 中国石油化工股份有限公司 | A kind of pipe string for gas injection and brine discharge of 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 body subassembly and compressor |
| CN115126446A (en) * | 2021-03-26 | 2022-09-30 | 中国石油化工股份有限公司 | A kind of pipe string for gas injection and brine discharge of salt cavern gas storage |
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| 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: 20150819 Termination date: 20180401 |
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| CF01 | Termination of patent right due to non-payment of annual fee |