CN106908186A - A kind of pore pressure force probe of hemispherical head four is combed - Google Patents
A kind of pore pressure force probe of hemispherical head four is combed Download PDFInfo
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- CN106908186A CN106908186A CN201710136046.XA CN201710136046A CN106908186A CN 106908186 A CN106908186 A CN 106908186A CN 201710136046 A CN201710136046 A CN 201710136046A CN 106908186 A CN106908186 A CN 106908186A
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- probe
- pressure
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- hole
- combed
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
Abstract
The invention belongs to pressure test technical field, disclose a kind of pore pressure force probe of hemispherical head four comb, comprising probe, pole, pressure guiding pipe, probe is the cylinder that head is hemisphere, quantity determines according to measurement request, at least 3, pole difference is separately fixed to open up to measurement position, the hemisphere summit of probe and side are provided with 4 pressure experience holes altogether, experience hole for 4 to be connected with 4 pressure guiding pipes being encapsulated in probe respectively, passage is provided with inside pole, the other end of pressure guiding pipe is drawn through the passage in pole by probe tails.The present invention is demarcated by calibration wind tunnel, stagnation pressure, static pressure, deflection angle, the angle of pitch and the Mach number that can measure multiple locus simultaneously to flow, it is adaptable to measured subsonic turbine import, exported distribution of the three-dimensional flow field parameter along blade height direction.Compared with the pressure probe of existing measurement three-dimensional flow field, can simultaneously measure multiple locus to flow parameter, farthest shorten time of measuring, reduce experimentation cost.
Description
Technical field
The invention belongs to pressure test technical field, it is related to three-dimensional flow field device for pressure measurement, and in particular to a kind of hemisphere
First four pore pressures force probe comb, it is adaptable to measure subsonic turbine import, outlet three-dimensional flow field come flow the angle of pitch, deflection angle, stagnation pressure,
Static pressure and Mach number along blade height direction distribution.
Compared with the pressure probe of existing measurement three-dimensional flow field, it is not required to, by probe displacement mechanism, change point position,
The angle of pitch, deflection angle, stagnation pressure, static pressure and Mach number edge can be flowed in the import of instantaneous completion subsonic turbine, outlet three-dimensional flow field
The measurement of leaf directional spreding high, and reduce experimentation cost.
Background technology
Subsonic turbine experiment needs measurement import, outlet three-dimensional flow field parameter, including to flow the angle of pitch, deflection angle, total
Pressure, static pressure and Mach number etc. typically use four holes or five pore pressure force probes, by probe at present along the distribution in blade height direction
Displacement mechanism drives probe to different leaf high positions, measures respectively, and due to being spot measurement, it is necessary to traveling probe, ability is complete
Into multimetering, experiment time of measuring is more long, and experimental cost is higher.
And in the experiment of some subsonic turbines, because effective test period is short, only short a few minutes, or even several seconds
Clock, testpieces import, outlet subsonic speed three-dimensional flow field parameter cannot be completed using existing pressure probe in several seconds
Along the measurement of leaf directional spreding high.
The content of the invention
The technical problem to be solved in the present invention is：Subsonics cannot be completed for existing pressure probe in several seconds
The problem that fast turbine inlet, outlet three-dimensional flow field parameter are measured along leaf directional spreding high, invents a kind of pore pressure force of hemispherical head four and visits
Grilling, compared with existing pressure probe, can measure multiple locus to flow parameter simultaneously, can farthest shorten measurement
Time, complete the import of subsonic turbine testpieces, export three-dimensional flow field to flow the angle of pitch, deflection angle, stagnation pressure, static pressure and Mach number
Along the measurement of leaf directional spreding high, experimentation cost is reduced.
Technical solution of the invention is：
1st, the pore pressure force probe of a kind of hemispherical head four comb, it is characterised in that：Comprising probe (1), pole (2), pressure guiding pipe (3),
The probe (1) is the cylinder that head is hemisphere, and quantity determines according to measurement request, at least 3, will according to measurement position
Ask, be separately fixed at pole (2) difference and open up in measurement position, 1 pressure experience is provided with the hemisphere summit of probe (1)
Hole, is mesopore (4), probe (1) hemisphere sphere on be circumferentially uniformly provided with 3 pressure experience holes, respectively go up hole (5),
Left hole (6), right hole (7), mesopore (4), upper hole (5) center line in one plane, left hole (6), right hole (7) are along the plane pair
Claim distribution, one end that each pressure experience hole is encapsulated in probe (1) with a pressure guiding pipe (3) connects alone, pole (2) is internal
Passage is provided with, the other end of each pressure guiding pipe (3) is drawn through the passage in pole (2) by probe tails.
2nd, further, the hemispherical diameter of probe (1) is 1 millimeter to 6 millimeters.
3rd, further, mesopore (4), upper hole (5), left hole (6), a diameter of 0.2 millimeter to 1 millimeter of right hole (7).
4th, further, mesopore (4) and the distance of probe comb pole (2) leading edge are 2 millimeters to 20 millimeters.
5th, further, a diameter of 0.2 millimeter to 1 millimeter of pressure guiding pipe (3).
6th, further, pole (2) can be cylinder, and external diameter is 4 millimeters to 20 millimeters.
7th, further, the cuboid of rounding before and after pole (2) can be, circle external diameter is 2 millimeters to 10 millimeters.
The beneficial effects of the invention are as follows：
The present invention is demarcated by calibration wind tunnel, the stagnation pressure that can multiple locus be measured simultaneously to flow, static pressure, the angle of pitch,
Deflection angle and Mach number, it is adaptable to measure subsonic turbine import, export three-dimensional flow field to flow parameter along blade height direction
Distribution.Compared with the pressure probe of existing measurement three-dimensional flow field, can multiple locus be measured simultaneously to flow parameter, can be maximum
Degree ground shortens time of measuring, completes subsonic turbine import, outlet three-dimensional flow field parameter along the measurement of leaf directional spreding high, drops
Low experimentation cost.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the pore pressure force probe of hemispherical head four comb in embodiments of the invention one.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the A of Fig. 2 to sectional view.
Fig. 4 is in Fig. 2 I partial enlarged drawing.
Fig. 5 is a kind of structural representation of the pore pressure force probe of hemispherical head four comb in embodiments of the invention two.
Fig. 6 is the right view of Fig. 5.
Fig. 7 is the A of Fig. 6 to sectional view.
Fig. 8 is in Fig. 6 II partial enlarged drawing.
Wherein：1- pops one's head in, 2- poles, 3- pressure guiding pipes, 4- mesopores, the upper holes of 5-, 6- left hole, 7- right hole.
Specific embodiment
The present invention will be described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment one
As shown in figure 1, a kind of pore pressure force probe of hemispherical head four comb is described in the present embodiment, comprising probe (1), pole
(2), pressure guiding pipe (3), the probe (1) is the cylinder that head is hemisphere, and quantity is defined as 5 according to measurement request, according to
Measurement position requirement, is separately fixed at pole (2) difference and opens up in measurement position, and 1 is provided with the hemisphere summit of probe (1)
Pressure experience hole, is mesopore (4), is circumferentially uniformly provided with 3 pressure experience holes on the hemisphere sphere of probe (1), respectively
Upper hole (5), left hole (6), right hole (7), mesopore (4), upper hole (5) center line in one plane, left hole (6), right hole (7) edge
The plane symmetry is distributed, and one end that each pressure experience hole is encapsulated in probe (1) with a pressure guiding pipe (3) connects alone, props up
Passage is provided with inside bar (2), the other end of each pressure guiding pipe (3) is drawn through the passage in pole (2) by probe tails.
The hemispherical diameter of probe (1) is 2 millimeters.
Mesopore (4), upper hole (5), left hole (6), a diameter of 0.5 millimeter of right hole (7).
Mesopore (4) is 10 millimeters with the distance of probe comb pole (2) leading edge.
A diameter of 0.5 millimeter of pressure guiding pipe (3).
Pole (2) is cylinder, and external diameter is 7 millimeters.
The present invention is demarcated by calibration wind tunnel, the stagnation pressure that can multiple locus be measured simultaneously to flow, static pressure, the angle of pitch,
Deflection angle and Mach number, it is adaptable to measure subsonic turbine import, export low speed three-dimensional flow field to flow parameter along blade height side
To distribution.
Embodiment two
As shown in figure 5, a kind of pore pressure force probe of hemispherical head four comb is described in the present embodiment, comprising probe (1), pole
(2), pressure guiding pipe (3), the probe (1) is the cylinder that head is hemisphere, and quantity is defined as 5 according to measurement request, according to
Measurement position requirement, is separately fixed at pole (2) difference and opens up in measurement position, and 1 is provided with the hemisphere summit of probe (1)
Pressure experience hole, is mesopore (4), is circumferentially uniformly provided with 3 pressure experience holes on the hemisphere sphere of probe (1), respectively
Upper hole (5), left hole (6), right hole (7), mesopore (4), upper hole (5) center line in one plane, left hole (6), right hole (7) edge
The plane symmetry is distributed, and one end that each pressure experience hole is encapsulated in probe (1) with a pressure guiding pipe (3) connects alone, props up
Passage is provided with inside bar (2), the other end of each pressure guiding pipe (3) is drawn through the passage in pole (2) by probe tails.
The hemispherical diameter of probe (1) is 2 millimeters.
Mesopore (4), upper hole (5), left hole (6), a diameter of 0.4 millimeter of right hole (7).
Mesopore (4) is 10 millimeters with the distance of probe comb pole (2) leading edge.
A diameter of 0.4 millimeter of pressure guiding pipe (3).
Pole (2) is the cuboid of front and rear rounding, and circle external diameter is 6 millimeters, and two centers of circle distance is 8 millimeters..
The present invention is demarcated by calibration wind tunnel, the stagnation pressure that can multiple locus be measured simultaneously to flow, static pressure, the angle of pitch,
Deflection angle and Mach number, it is adaptable to measure subsonic turbine import, export high speed three-dimensional flow field to flow parameter along blade height side
To distribution.
Claims (7)
1. a kind of pore pressure force probe of hemispherical head four is combed, it is characterised in that：It is described comprising probe (1), pole (2), pressure guiding pipe (3)
Probe (1) is the cylinder that head is hemisphere, and quantity determines according to measurement request, at least 3, is required according to measurement position,
It is separately fixed at pole (2) difference to open up in measurement position, 1 pressure experience hole is provided with the hemisphere summit of probe (1), is
Mesopore (4), 3 pressure experience holes are circumferentially uniformly provided with the hemisphere sphere of probe (1), respectively go up hole (5), left hole
(6), right hole (7), mesopore (4), upper hole (5) center line in one plane, left hole (6), right hole (7) are along the plane symmetry point
Cloth, one end that each pressure experience hole is encapsulated in probe (1) with a pressure guiding pipe (3) connects alone, is provided with inside pole (2)
Passage, the other end of each pressure guiding pipe (3) is drawn through the passage in pole (2) by probe tails.
2. a kind of pore pressure force probe of hemispherical head according to claim 1 four is combed, it is characterised in that：The hemisphere of probe (1) is straight
Footpath is 1 millimeter to 6 millimeters.
3. a kind of pore pressure force probe of hemispherical head according to claim 1 four is combed, it is characterised in that：Mesopore (4), upper hole (5),
A diameter of 0.2 millimeter to 1 millimeter of left hole (6), right hole (7).
4. a kind of pore pressure force probe of hemispherical head according to claim 1 four is combed, it is characterised in that：Mesopore (4) is combed with probe
The distance of pole (2) leading edge is 2 millimeters to 20 millimeters.
5. a kind of pore pressure force probe of hemispherical head according to claim 1 four is combed, it is characterised in that：Pressure guiding pipe (3) is a diameter of
0.2 millimeter to 1 millimeter.
6. a kind of pore pressure force probe of hemispherical head according to claim 1 four is combed, it is characterised in that：Pole (2) can be circle
Cylinder, external diameter is 4 millimeters to 20 millimeters.
7. a kind of pore pressure force probe of hemispherical head according to claim 1 four is combed, it is characterised in that：Pole (2) can be preceding
The cuboid of rounding, justifies external diameter for 2 millimeters to 10 millimeters afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710136046.XA CN106908186A (en) | 2017-03-09 | 2017-03-09 | A kind of pore pressure force probe of hemispherical head four is combed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710136046.XA CN106908186A (en) | 2017-03-09 | 2017-03-09 | A kind of pore pressure force probe of hemispherical head four is combed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106908186A true CN106908186A (en) | 2017-06-30 |
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|---|---|---|---|
| CN201710136046.XA Pending CN106908186A (en) | 2017-03-09 | 2017-03-09 | A kind of pore pressure force probe of hemispherical head four is combed |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011148094A1 (en) * | 2010-05-25 | 2011-12-01 | Turbomeca | Device for multipoint acquisition/distribution of fluid, in particular probe for tapping pressure in a turbomachine air inlet |
| CN203940946U (en) * | 2014-07-04 | 2014-11-12 | 北京航空航天大学 | A kind of five-hole probe for full flow directional detection |
| CN105716779A (en) * | 2015-11-02 | 2016-06-29 | 北京航空航天大学 | Dynamic pressure blade type probe |
| CN105716788A (en) * | 2015-11-02 | 2016-06-29 | 北京航空航天大学 | Three-hole transonic speed pressure probe |
-
2017
- 2017-03-09 CN CN201710136046.XA patent/CN106908186A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011148094A1 (en) * | 2010-05-25 | 2011-12-01 | Turbomeca | Device for multipoint acquisition/distribution of fluid, in particular probe for tapping pressure in a turbomachine air inlet |
| CN203940946U (en) * | 2014-07-04 | 2014-11-12 | 北京航空航天大学 | A kind of five-hole probe for full flow directional detection |
| CN105716779A (en) * | 2015-11-02 | 2016-06-29 | 北京航空航天大学 | Dynamic pressure blade type probe |
| CN105716788A (en) * | 2015-11-02 | 2016-06-29 | 北京航空航天大学 | Three-hole transonic speed pressure probe |
Non-Patent Citations (2)
| Title |
|---|
| 南京纳飞特流体技术有限公司: "五孔探针流速测量仪http://www.86mai.com/sell/show-1082826.html", 《中麦网》 * |
| 陈峻 等: "《船舶动力装置测试技术》", 28 February 2015 * |
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Application publication date: 20170630 |
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