CN108225614B - A kind of temperature probe reducing strut blockage effect using strut air-breathing - Google Patents
A kind of temperature probe reducing strut blockage effect using strut air-breathing Download PDFInfo
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- CN108225614B CN108225614B CN201710480065.4A CN201710480065A CN108225614B CN 108225614 B CN108225614 B CN 108225614B CN 201710480065 A CN201710480065 A CN 201710480065A CN 108225614 B CN108225614 B CN 108225614B
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- strut
- air
- circular hole
- probe
- intake duct
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
- G01K13/022—Suction thermometers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
- G01K13/024—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow of moving gases
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- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention belongs to flow field temperature test technical fields.The invention discloses a kind of temperature probes for reducing strut blockage effect using strut air-breathing, it is characterised in that: comprising end of probe, strut, air intake duct, connects mouth；The end of probe and strut weld, built-in temperature sensor；The cable of the temperature sensor is packaged in inside strut, is drawn from strut top or side, and obturage；The strut is enclosed construction, and towards incoming flow, multiple row circular hole is opened at shoulder or back, and hole is connected or communicates with air intake duct；The air intake duct is connect with the mouth that connects being welded on strut；The mouth that connects is cylindrical-shaped structure, is welded on the surface of strut, seals.By controlling the inspiratory capacity of strut, interference of the insertion probe to tested flow field can be weakened.Compared with existing probe, the present invention reduces blockage effect caused by probe strut tail by the circular hole air-breathing on strut surface.
Description
Technical field
The invention belongs to flow field temperature test technical fields, are related to the measuring device of flow field temperature, and in particular to Yi Zhongli
Reduce the temperature probe of strut blockage effect with strut air-breathing.
Background technique
At present inside in stream experimental test, such as between air-flow the imports such as compressor, turbine, fan, blower, outlet, grade
The measurement of static temperature, total temperature, through obtaining above-mentioned performance parameter and flow field characteristic frequently with plug-type temperature probe.
Since temperature probe needs strut support in measurement, and strut can generate certain interference to tested flow field, make
At flowing mixing loss, flowing blocking, the normal operation of testpieces is even influenced when serious.For example, when probe is inserted into small size
When compressor inlet measures, probe strut tail will cause relatively serious blocking, causes compressor and shifts to an earlier date stall even
Surge.When measuring turbine internal flow field parameters using plug-in type temperature probe, strut tail can generate blockage effect, and interference is tested
The flow behavior in flow field influences the measurement of downstream flow field parameter.
Summary of the invention
The present invention solves the technical problem of: when using plug-in type temperature probe measurement turbine flow field temperature,
Strut tail can generate blockage effect, interfere the flow behavior in tested flow field, influence the measurement of downstream flow field parameter.The present invention is
A kind of temperature probe being reduced strut blockage effect using strut air-breathing is sucked out gas by the circular hole on strut surface, reduces and visit
The blockage effect of needle strut weakens interference of the insertion probe to tested flow field.
In order to solve above-mentioned technical problem, design scheme of the invention are as follows:
1. a kind of temperature probe for reducing strut blockage effect using strut air-breathing, it is characterised in that: include end of probe
(1), strut (2), air intake duct (5), connect mouth (6)；The end of probe (1) and strut (2) are welded, built-in temperature sensor；Institute
The cable (3) for stating temperature sensor is packaged in strut (2) inside, draws from strut (2) top or side, and obturage；The branch
Bar (2) is enclosed construction, and towards incoming flow, shoulder or back are opened multiple row circular hole (4), and hole (4) are connected with air intake duct (5) or phase
It is logical；The air intake duct (5) connect with the mouth (6) that connects being welded on strut (2)；Described connect mouth (6) are cylindrical-shaped structure, are welded on
The surface of strut (2), seals.
2. further, probe strut (2) section can be circle, kidney-shaped, wedge shape structure.
3. the angle between two column hole (4) is 0 °~180 ° further, if strut (2) back is opened multiple row circular hole (4).
4. further, a column circular hole (4) on probe strut (2) surface, aperture is 0.1~3mm, the aperture of each hole (4)
It can be the same or different.
5. further, a column circular hole (4) on probe strut (2) surface, the distance between two holes (4) are 0~20mm, circular hole
(4) along axially can uniformly arrange or unevenly arrange, the number of each column hole (4) can be long according to the measurement of strut (2)
Depending on degree.
6. further, air intake duct (5) extend into strut (2) inside, diameter is 0~3mm, and air intake duct (5) can be single
Or more.
7. further, air intake duct (5) is connected with circular hole (4), and corresponds；Air intake duct (5) is communicated with circular hole (4),
Air intake duct (5) suction end can be located at any position of strut (2) top to bottom.
8. further, it is 0 °~90 ° with strut angle that strut (2) side can be welded on by, which connecing mouth (6), can also be vertical
It is welded on strut (2) top, length is 0~30mm.
The present invention passes through calibration experiments, under conditions of known temperature of incoming flow, can control gas suction amount, reduces probe
The blockage effect of strut weakens interference of the insertion probe to tested flow field.
Compared with conventional art, what the present invention can achieve is had the technical effect that
In the measurement of turbomachine internal flow field parameters, the present invention can weaken strut tail by strut suction gas and be made
At blockage effect, weaken interference of the insertion probe to tested flow field, improve the measurement accuracy of downstream flow field probe.
It can be applied to the measurement of the turbines interior flow field temperature such as compressor, turbine, fan, blower, it can also be used to pipeline,
The measurement for the flow field temperature that outflows.
Detailed description of the invention
Fig. 1 is a kind of main view for the temperature probe embodiment one for reducing strut blockage effect using strut air-breathing of the present invention
Figure；
Fig. 2 is a kind of right view for the temperature probe embodiment one for reducing strut blockage effect using strut air-breathing of the present invention
Figure；
Wherein: 1. probes；2. probe strut；3. temperature sensor cable；4. the circular hole on strut surface；5. air intake duct；
6. connecing mouth.
Specific embodiment
The present invention will be described in detail with reference to the accompanying drawings and examples.
Embodiment
As shown in Figure 1, a kind of temperature probe for reducing strut blockage effect using strut air-breathing is described in the present embodiment,
It is characterized by: comprising end of probe (1), strut (2), air intake duct (5), connecing mouth (6)；The end of probe (1) and strut (2)
Welding, built-in temperature sensor；The cable (3) of the temperature sensor is packaged in strut (2) inside, draws from strut (2) top
Out, it and obturages；The strut (2) is enclosed construction, and towards incoming flow, shoulder opens two column circular holes (4), hole (4) and air intake duct (5)
It is connected；The air intake duct (5) connect with the mouth (6) that connects being welded on strut (2)；Described connect mouth (6) are cylindrical-shaped structure, welding
On the surface of strut (2), seal.
In this example, strut (1) section is circle, diameter 7mm；Circular hole (4) diameter is 0.6mm, each hole (4) size
Unanimously；The distance between two holes are 6mm, and are uniformly arranged；5 holes (4) are opened altogether in strut back；Air intake duct (5) diameter is
0.6mm；Be welded on strut (2) side connects mouth (6), is 60 ° with strut angle, length 15mm.
The present embodiment can control the inspiratory capacity in each hole, being capable of effectively speed caused by polishing strut blockage effect
Degree loss, weakens the interference of strut tail convection current field characteristic.
The present invention passes through calibration experiments, under conditions of known temperature of incoming flow, can control gas suction amount, reduces probe
The blockage effect of strut weakens interference of the insertion probe to tested flow field.
Claims (8)
1. it is a kind of using strut air-breathing reduce strut blockage effect temperature probe, it is characterised in that: comprising end of probe (1),
Strut (2), connects mouth (6) at air intake duct (5)；The end of probe (1) and the strut (2) are welded, built-in temperature sensor；Institute
The cable (3) for stating temperature sensor is packaged in the strut (2) inside, draws from strut (2) side, and obturage；The strut
(2) be enclosed construction, towards incoming flow, shoulder is opened multiple row circular hole (4), the circular hole (4) be connected with the air intake duct (5) or
It communicates, gas is sucked out by the circular hole (4) on strut (2) surface；The air intake duct (5) be welded on connecing on the strut (2)
Mouth (6) connection；Described connect mouth (6) are cylindrical-shaped structure, are welded on the surface of the strut (2), seal.
2. a kind of temperature probe for being reduced strut blockage effect using strut air-breathing according to claim 1, feature are existed
In: strut (2) section is circle, kidney-shaped, wedge shape structure.
3. a kind of temperature probe for being reduced strut blockage effect using strut air-breathing according to claim 1, feature are existed
In: strut (2) shoulder is opened multiple row circular hole (4), and the angle between two column circular holes (4) is 0 °~180 °.
4. according to claim 1 or a kind of temperature for reducing strut blockage effect using strut air-breathing as claimed in claim 3 is visited
Needle, it is characterised in that: a column circular hole (4) on strut (2) surface, aperture are 0 .1~3mm, the aperture of each circular hole (4)
It is same or different.
5. according to claim 1 or a kind of temperature for reducing strut blockage effect using strut air-breathing as claimed in claim 3 is visited
Needle, it is characterised in that: a column circular hole (4) on strut (2) surface, the distance between two circular holes (4) are 0~20mm, circular hole
(4) along axial uniformly arrangement or uneven arrangement, the number of each column circular hole (4) is depending on the measurement length of strut (2).
6. a kind of temperature probe for being reduced strut blockage effect using strut air-breathing according to claim 1, feature are existed
In: the air intake duct (5) extend into the strut (2) inside, and diameter is 0~3mm, and the air intake duct (5) is single or more.
7. according to claim 1 or a kind of temperature for reducing strut blockage effect using strut air-breathing as claimed in claim 6 is visited
Needle, it is characterised in that: the air intake duct (5) is connected with the circular hole (4), and corresponds；The air intake duct (5) with it is described
Circular hole (4) communicates, and air intake duct (5) suction end is located at any position of the strut (2) top to bottom.
8. a kind of temperature probe for being reduced strut blockage effect using strut air-breathing according to claim 1, feature are existed
In: the side for connecing mouth (6) and being welded on the strut (2), is 0 °~90 ° with strut angle, or is vertically welded in described
Strut (2) top, length are 0~30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710480065.4A CN108225614B (en) | 2017-06-21 | 2017-06-21 | A kind of temperature probe reducing strut blockage effect using strut air-breathing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710480065.4A CN108225614B (en) | 2017-06-21 | 2017-06-21 | A kind of temperature probe reducing strut blockage effect using strut air-breathing |
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| CN108225614A CN108225614A (en) | 2018-06-29 |
| CN108225614B true CN108225614B (en) | 2019-09-10 |
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Citations (10)
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| DE102004016033A1 (en) * | 2004-03-30 | 2005-10-20 | Alstom Technology Ltd Baden | Measuring device, for measuring flow parameters in flow channel in turbo-engine, e.g. gas turbine, has rake/comb with support and measuring heads protruding radially from it |
| CN102937458A (en) * | 2011-08-15 | 2013-02-20 | 中国科学院工程热物理研究所 | Steady-state entropy probe |
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| CN104034532A (en) * | 2014-06-09 | 2014-09-10 | 中国航空工业集团公司沈阳发动机设计研究所 | Total temperature and total pressure wing-shaped sensing part |
| CN104280183A (en) * | 2014-09-29 | 2015-01-14 | 南京航空航天大学 | Flow collection type comb-shaped total pressure probe |
| EP2937677A1 (en) * | 2014-04-25 | 2015-10-28 | KIMA Echtzeitsysteme GmbH | Temperature measuring device |
| CN105987773A (en) * | 2015-01-27 | 2016-10-05 | 成都凯天电子股份有限公司 | Retardant total temperature sensor |
| CN106840459A (en) * | 2017-03-24 | 2017-06-13 | 北京航空航天大学 | A kind of total temperature measurement probe in ten holes |
| CN107131974A (en) * | 2017-05-08 | 2017-09-05 | 北京航空航天大学 | A kind of temperature probe comb with air-breathing branching rod structure |
| CN108225613A (en) * | 2017-05-31 | 2018-06-29 | 北京航空航天大学 | A kind of blown using strut reduces the temperature probe of strut blockage effect |
-
2017
- 2017-06-21 CN CN201710480065.4A patent/CN108225614B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004016033A1 (en) * | 2004-03-30 | 2005-10-20 | Alstom Technology Ltd Baden | Measuring device, for measuring flow parameters in flow channel in turbo-engine, e.g. gas turbine, has rake/comb with support and measuring heads protruding radially from it |
| CN102937458A (en) * | 2011-08-15 | 2013-02-20 | 中国科学院工程热物理研究所 | Steady-state entropy probe |
| CN202974619U (en) * | 2012-11-30 | 2013-06-05 | 沈阳鼓风机集团安装检修配件有限公司 | Total pressure probe |
| EP2937677A1 (en) * | 2014-04-25 | 2015-10-28 | KIMA Echtzeitsysteme GmbH | Temperature measuring device |
| CN104034532A (en) * | 2014-06-09 | 2014-09-10 | 中国航空工业集团公司沈阳发动机设计研究所 | Total temperature and total pressure wing-shaped sensing part |
| CN104280183A (en) * | 2014-09-29 | 2015-01-14 | 南京航空航天大学 | Flow collection type comb-shaped total pressure probe |
| CN105987773A (en) * | 2015-01-27 | 2016-10-05 | 成都凯天电子股份有限公司 | Retardant total temperature sensor |
| CN106840459A (en) * | 2017-03-24 | 2017-06-13 | 北京航空航天大学 | A kind of total temperature measurement probe in ten holes |
| CN107131974A (en) * | 2017-05-08 | 2017-09-05 | 北京航空航天大学 | A kind of temperature probe comb with air-breathing branching rod structure |
| CN108225613A (en) * | 2017-05-31 | 2018-06-29 | 北京航空航天大学 | A kind of blown using strut reduces the temperature probe of strut blockage effect |
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| CN108225614A (en) | 2018-06-29 |
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