CN2589983Y - Novel water flow field probe measuring device - Google Patents
Novel water flow field probe measuring device Download PDFInfo
- Publication number
- CN2589983Y CN2589983Y CN 02295672 CN02295672U CN2589983Y CN 2589983 Y CN2589983 Y CN 2589983Y CN 02295672 CN02295672 CN 02295672 CN 02295672 U CN02295672 U CN 02295672U CN 2589983 Y CN2589983 Y CN 2589983Y
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- China
- Prior art keywords
- probe
- flow field
- water flow
- pressure
- support body
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- Expired - Fee Related
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- 239000000523 sample Substances 0.000 title claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 238000005259 measurement Methods 0.000 claims abstract description 18
- 238000009530 blood pressure measurement Methods 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 210000004907 gland Anatomy 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 238000005086 pumping Methods 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 3
- 229910052753 mercury Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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- Measuring Volume Flow (AREA)
Abstract
Novel water flow field probe measuring device belongs to hydraulic power measurement technical field. Constitute by probe survey frame 1, pressure cell board 2, connecting pipe 3 etc, sealed 8 departments between the hole of probe pole and the support body in the probe survey frame 1 are equipped with positioning pad 5 and constitute two sealed locating points, and sealed tightness is adjusted through rotatory support body 9 and gland 11, is equipped with vertical type water column pressure measuring pipe 4 on the pressure cell board 2, and the tail end of every needle tubing of probe is connected through connecting pipe 3 and 4 bottoms of water column pressure measuring pipe on the pressure measuring board 2. The utility model has simple and reasonable structure and easy production and manufacture. The method is suitable for measuring the three-dimensional flow velocity, pressure distribution and pipeline flow of a stable water flow field with the relative pressure P of-0.06 MPa-0.20 MPa and the flow velocity V of less than or equal to 10 m/s. The method has the advantages of convenient measurement, high precision, low cost and good popularization and application value.
Description
Technical field
The utility model relates to the water velocity of water flow field, the measurement mechanism of pressure and other parameters, the particularly measurement mechanism of pipeline water flow field, belongs to hydraulic measurement equipment and instrument technical field.
Background technology
The existing device that is used for the water flow field measurement is surveyed frame, pressure measurement plate, connecting pipe etc. by probe and is constituted, probe rod is inserted in the endoporus of tubular style support body, between endoporus and the probe rod rubber seal is set, the tail end of every needle tubing is connected with differential mercury piezometric tube on the pressure measurement plate by connecting pipe.This water flow field measurement mechanism, owing to there is the gap, only depend on elastic seal ring supporting and sealing between the probe rod in the probe survey frame and the endoporus of support body, probe rod reaches when rotate in self axle center in measurement, easily produce eccentric dislocation, influence probe bearing accuracy and sealing effectiveness.Differential mercury piezometric tube on the pressure measurement plate, because mercury is than great, level change is little, error is big.Probe needle tubing diameter is little, and generally in 0.8 millimeter, the piezometric tube diameter is big, generally more than 10 millimeters.When water flow field was measured, the needle tubing resistance to flow was big, and the water body volume change that level change causes in the piezometric tube is big, and it is slow to measure pin hole pressure reacting condition, and Measuring Time is long, and precision is low.
The utility model content
The purpose of this utility model is that liquid level reaction sensitivity in a kind of piezometric tube, the novel water flow field probe measurement device that measuring speed is fast, precision is high, cost is low will be provided.
The purpose of this utility model is to realize by the improvement to existing water flow field measurement mechanism, novel water flow field probe measurement device, comprise probe survey frame 1, pressure measurement plate 2, connecting pipe 3, O-ring seal 8 places between the probe rod 6 in the described probe survey frame 1 and the endoporus of support body 9 are provided with locating shim 5 and constitute sealed locating points, pressure measurement plate 2 is provided with vertical type water column piezometric tube 4, and the tail end of every needle tubing of probe is connected with water column piezometric tube 4 bottoms on the pressure measurement plate 2 by connecting pipe 3.Described probe needle tubing diameter is 1.4～1.8 millimeters.Water column piezometric tube diameter is 2～6 millimeters.The sealed locating point that is provided with between the endoporus of described probe rod and support body is two, and the sealing tightness is adjusted by rotation support body 9 and gland 11.
The utility model is applicable to relative pressure P=-0.06MPa～0.20MPa, and the three-dimensional flow in flow velocity V≤10m/s stabilize water flow field, pressure distribution and pipeline flow are measured.Be used to measure the measuring point that is on the same straight line, measure whole section mobility status, need outside tube wall, bore the fixing survey of 4～8 apertures frame, insert probe measurement; Pin hole pressure reduction and pressure adopt the water column piezometric tube to measure, and according to the gaging pressure size, piezometric tube top communicating pipe valve are led to atmosphere, inwardly calm the anger, outwards bleeds with medical syringe with inflator, keep the piezometric tube water column water surface in observation scope.
The utility model is simple and reasonable for structure, manufactures easily.Probe needle tubing diameter and water column piezometric tube diameter thickness coupling are suitable, and when measuring water flow field, the needle tubing resistance to flow is little, and the fluid column volume change is little in the piezometric tube, and reaction is fast, Measuring Time weak point, precision height.Be provided with two sealed locating points between the endoporus of probe rod and support body, good sealing effect, the probe rod good stability has improved measuring accuracy equally.The utility model is tested at the flow field and the flow rate test of on-the-spot prototype water pump of more than 10 big-and-middle-sized pumping plant such as Jiangdu, the Jiangsu Province 1.6m of first and second pumping station large-sized vertical-type axial-flow pump, the horizontal axial flow pump of the Qin Huai Xinhe River, Nanjing pumping plant 1.4m, Xuzhou Zheng Ji, Wang Zhuan pumping plant, Wuxi City The Plum Garden water factory clear water pumping plant, Slender West Lake, Yangzhou running water engineering pumping plant and laboratory model pumping unit.The result shows that this measurement mechanism testing is convenient, the precision height, and cost is low, and the excellent popularization using value is arranged.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is that probe of the present utility model is surveyed the shelf structure synoptic diagram;
1 probe is surveyed frame, 2 pressure measurement plates, 3 connecting pipes, 4 water column piezometric tube, 5 locating shims, 6 probe rods, 7 water flow field walls, 8 O-ring seals, 9 support bodys, 10 nuts, 11 glands, 12 scales among the figure.
Embodiment
Survey at probe that nut 10 is welded in water flow field wall 7 outsides in the frame 1, and with the water flow field wall on pre-drilled aperture centering, support body 9 is fixed on the nut 10.O-ring seal 8 sides between the endoporus of probe rod 6 and support body 9 are provided with locating shim 5 and constitute sealed locating point, at the two ends of support body a sealed locating point are set respectively respectively, and the sealing tightness is adjusted by rotation support body 9 and gland 11.Vertical type water column piezometric tube 4 and scale 12 are set on pressure measurement plate 2, and the tail end of every needle tubing of probe is connected with water column piezometric tube 4 bottoms on the pressure measurement plate 2 by connecting pipe 3.Probe needle tubing diameter is 1.6 millimeters.Water column piezometric tube diameter is 3 millimeters.
Claims (4)
1, a kind of novel water flow field probe measurement device, comprise probe survey frame (1), pressure measurement plate (2), connecting pipe (3), it is characterized in that the O-ring seal (8) that probe is surveyed between the endoporus of probe rod (6) and support body (9) in the frame (1) locates to be provided with locating shim (5) formation sealed locating point, pressure measurement plate (2) is provided with vertical type water column piezometric tube (4), and the tail end of every needle tubing of probe is connected with vertical type water column piezometric tube (4) bottom on the pressure measurement plate (2) by connecting pipe (3).
2, novel water flow field probe measurement device according to claim 1 is characterized in that said probe pin (6) pipe diameter is 1.4～1.8 millimeters.
3, novel water flow field probe measurement device according to claim 1 is characterized in that said vertical type water column piezometric tube (4) diameter is 2～6 millimeters.
4, novel water flow field probe measurement device according to claim 1 is characterized in that the sealed locating point that is provided with between the endoporus of said probe rod (6) and support body (9) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02295672 CN2589983Y (en) | 2002-12-31 | 2002-12-31 | Novel water flow field probe measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02295672 CN2589983Y (en) | 2002-12-31 | 2002-12-31 | Novel water flow field probe measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2589983Y true CN2589983Y (en) | 2003-12-03 |
Family
ID=33752580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02295672 Expired - Fee Related CN2589983Y (en) | 2002-12-31 | 2002-12-31 | Novel water flow field probe measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2589983Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148992A (en) * | 2013-03-11 | 2013-06-12 | 南京帝坝工程科技有限公司 | Three-dimensional flow velocity vector energy and mass measurement device |
| CN107247156A (en) * | 2017-07-31 | 2017-10-13 | 长江大学 | A kind of flow rate measuring device and implementation based on pressure sensitive |
| CN113865823A (en) * | 2021-09-27 | 2021-12-31 | 中国人民解放军国防科技大学 | Pneumatic probe supporting and clamping device and method capable of being replaced quickly |
| CN114264222A (en) * | 2021-12-22 | 2022-04-01 | 扬州大学 | Water column diameter measuring instrument |
-
2002
- 2002-12-31 CN CN 02295672 patent/CN2589983Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148992A (en) * | 2013-03-11 | 2013-06-12 | 南京帝坝工程科技有限公司 | Three-dimensional flow velocity vector energy and mass measurement device |
| CN107247156A (en) * | 2017-07-31 | 2017-10-13 | 长江大学 | A kind of flow rate measuring device and implementation based on pressure sensitive |
| CN107247156B (en) * | 2017-07-31 | 2023-09-12 | 长江大学 | Implementation method for flow velocity measurement based on pressure sensing |
| CN113865823A (en) * | 2021-09-27 | 2021-12-31 | 中国人民解放军国防科技大学 | Pneumatic probe supporting and clamping device and method capable of being replaced quickly |
| CN114264222A (en) * | 2021-12-22 | 2022-04-01 | 扬州大学 | Water column diameter measuring instrument |
| CN114264222B (en) * | 2021-12-22 | 2024-05-17 | 扬州大学 | Water column diameter measuring instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |