CN107907232A - For measuring the temperature pressure combinations probe of turbomachinery interior flow field - Google Patents
For measuring the temperature pressure combinations probe of turbomachinery interior flow field Download PDFInfo
- Publication number
- CN107907232A CN107907232A CN201711395192.0A CN201711395192A CN107907232A CN 107907232 A CN107907232 A CN 107907232A CN 201711395192 A CN201711395192 A CN 201711395192A CN 107907232 A CN107907232 A CN 107907232A
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- Prior art keywords
- pressure
- temperature
- turbomachinery
- hole
- measuring
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0092—Pressure sensor associated with other sensors, e.g. for measuring acceleration or temperature
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses a kind of temperature pressure combinations probe for being used to measure turbomachinery interior flow field, including feeler lever, temperature sensation portion and pressure experience portion, feeler lever is used to be installed on inside turbomachinery, and stretches into flow field to be measured；Temperature sensation portion includes the flow guide sleeve being connected with feeler lever one end and the temperature-sensitive unit for being arranged on intracavitary in flow guide sleeve, and gas run-in-hole is provided with flow guide sleeve, it is used to be in contact with temperature-sensitive unit behind the inner cavity of air-flow importing flow guide sleeve；Pressure experience portion is positioned close on the feeler lever in temperature sensation portion, it includes three pressure-measuring pipes for being used to place load cell, and the mouth of pipe direction of a pressure-measuring pipe is consistent with the aperture direction of gas run-in-hole.Combination probe provided by the invention, pass through the design consistent with the aperture direction of gas run-in-hole of the mouth of pipe direction of a pressure-measuring pipe, the angle between temperature sensation portion and pressure experience portion and turbomachinery internal gas flow is consistent, greatly improves the precision for the temperature that temperature sensation portion measures.
Description
Technical field
The invention belongs to fields of measurement, and in particular to a kind of temperature pressure combinations for being used to measure turbomachinery interior flow field
Probe.
Background technology
At present, turbomachinery interior flow field is mainly to be measured by Pneumatic pressure probe, traditional, pneumatic pressure
Probe not only have the advantages that it is easy to use, be easy to grasp, price is low, performance is stable and measuring accuracy is high, and its test knot
Fruit can be directly used for the design and research and development of turbomachinery product, therefore Pneumatic pressure probe is constantly subjected to extensively in turbomachinery field
General application.
And traditional, pneumatic pressure probe can only measure stagnation pressure, static pressure, flow angle and the Mach number of measuring point, and in measurement machinery
, it is necessary to be inserted into temperature probe during internal air velocity, then measurement temperature is obtained gas velocity is calculated by temperature probe
Degree, therefore, it is impossible to realize the synchro measure of pressure and temperature.And during due to temperature probe measurement temperature, temperature probe with thoroughly
Angle between flat machine internal air-flow is inconsistent when being demarcated with probe, causes the kinetic energy of air-flow to tend not to full recovery as heat
Can, therefore the temperature of temperature probe measurement is unlikely to be real total temperature, but including the total temperature after its velocity error.Therefore,
, can there are certain error when calculating aerodynamic parameter.
The content of the invention
For in place of above the shortcomings of the prior art, it is used to measure turbomachinery inside stream the present invention provides a kind of
The temperature pressure combinations probe of field.
To achieve the above object, the present invention uses following technical scheme：
A kind of temperature pressure combinations probe for being used to measure turbomachinery interior flow field, including：
Feeler lever, it is used to be installed on inside turbomachinery, and stretches into flow field to be measured；
Temperature sensation portion, it includes the flow guide sleeve being connected with described feeler lever one end and is arranged in the flow guide sleeve
The temperature-sensitive unit of intracavitary, is provided with gas run-in-hole on the flow guide sleeve, it is used for after air-flow is imported the inner cavity of the flow guide sleeve
It is in contact with the temperature-sensitive unit；
Pressure experience portion, it is positioned close on the feeler lever in the temperature sensation portion, it includes three and is used to place
The pressure-measuring pipe of load cell, and the mouth of pipe direction of a pressure-measuring pipe is consistent with the aperture direction of the gas run-in-hole.
Further, three load cells respectively by a pressure-measuring pipe and are arranged on inside the feeler lever
A pressure guiding pipe be connected with pressure measuring unit.
Further, the pressure guiding pipe connects mouth and sebific duct and pressure measuring unit phase by being arranged on the pressure of described feeler lever one end
Even.
Further, one end of three pressure-measuring pipes is arranged on the circumference of same cross section of the feeler lever,
Its other end is directed to the center of circle of the cross section, the mouth of pipe direction of the centrally located pressure-measuring pipe and the air-flow into
The aperture direction in hole is consistent.
Further, the angle between the middle pressure-measuring pipe and the pressure-measuring pipe of its both sides is 45 °.
Further, the probe further includes the angle being connected with one end of the feeler lever away from the temperature sensation portion
Block is spent, the angle block gauge is used to measure the pressure experience portion and temperature sensation portion stream field inside turbomachinery
Measurement angle.
Further, the section of the angle block gauge bottom is rectangle, and the rectangular long side and the mouth of pipe and described
Different surface beeline angulation between the consistent pressure-measuring pipe tube body in the aperture direction of gas run-in-hole is 90 °.
Further, the gas run-in-hole is truncated cone-shaped hole of the bevel angle between 45 ° to 60 °, the truncated cone-shaped hole
Gradually increase along its internal diameter of direction is opened up.
Further, the side of the flow guide sleeve away from the gas run-in-hole is provided with relief hole.
Further, the temperature-sensitive unit is electroheat pair idol head, one end of the electroheat pair idol head and electroheat pair extended line
One end be connected, the other end of the electroheat pair extended line is through the inside of the feeler lever and from away from the electroheat pair idol head
One end be pierced by.
Temperature pressure combinations probe provided by the present invention for measuring turbomachinery interior flow field, passes through a pressure-measuring pipe
The design consistent with the aperture direction of gas run-in-hole of mouth of pipe direction, make temperature sensation portion and pressure experience portion respectively with turbomachinery
Angle between internal gas flow is consistent, and greatly improves the precision for the temperature that temperature sensation portion measures, and then pass through temperature
The accuracy for the calculating aerodynamic parameter that impression portion calculates greatly improves.
Brief description of the drawings
Fig. 1 is that a kind of temperature pressure combinations for being used to measure turbomachinery interior flow field of exemplary embodiment of the present are visited
The front view of pin；
Fig. 2 is that a kind of temperature pressure combinations for being used to measure turbomachinery interior flow field of exemplary embodiment of the present are visited
The top view of pin；
Fig. 3 is the close-up schematic view in the temperature sensation portion of exemplary embodiment of the present；
Fig. 4 be exemplary embodiment of the present pressure-measuring pipe and angle block gauge different surface beeline angulation schematic diagram.
In figure：1- feeler levers, 101- pressure connect mouth；
2- temperature sensations portion, 201- flow guide sleeves, 202- temperature-sensitive units, 203- gas run-in-holes, 204- relief holes, 205- electric heating
Even extended line；
3- pressure experiences portion, the first pressure-measuring pipes of 301-, the second pressure-measuring pipes of 302-, the 3rd pressure-measuring pipes of 303-；
4- angle block gauges.
Embodiment
To overcome deficiency of the prior art, the present invention is provided to measure the temperature, pressure group of turbomachinery interior flow field
Close probe.To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the preferred embodiment of the present invention
Attached drawing, the technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class
As label represent same or similar element or there is same or like element.Described embodiment is the present invention
Part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to uses
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill people
Member's all other embodiments obtained without creative efforts, belong to the scope of protection of the invention.Under
Face is described in detail the embodiment of the present invention with reference to attached drawing.
As shown in Figures 1 to 3, for measuring the temperature pressure combinations probe of turbomachinery interior flow field, including feeler lever 1, temperature
Impression portion 2 and pressure experience portion 3 are spent, feeler lever 1 is used to be installed on inside turbomachinery, and stretches into flow field to be measured；Temperature sensation
Portion 2 includes the flow guide sleeve 201 being connected with 1 one end of feeler lever and the temperature-sensitive unit 202 for being arranged on intracavitary in flow guide sleeve 201, leads
Gas run-in-hole 203 is provided with stream set 201, it is used to behind the inner cavity of air-flow importing flow guide sleeve 201 with temperature-sensitive unit 202 to connect
Touch；Pressure experience portion 3 is positioned close on the feeler lever 1 in temperature sensation portion 2, and temperature sensation portion 2 includes being used to place first respectively
Load cell, the first pressure-measuring pipe 301 of the second load cell and the 3rd load cell, the second pressure-measuring pipe 302 and the 3rd
Pressure-measuring pipe 303, the present embodiment are consistent with the aperture direction of gas run-in-hole 203 for the mouth of pipe direction of the second pressure-measuring pipe 303.Pass through
The design consistent with the aperture direction of gas run-in-hole 203 of the mouth of pipe directions of two pressure-measuring pipes 302, is not only able to measure turbine at the same time
The pressure and temperature of tool internal gas flow, and angle between temperature sensation portion 2 and air-flow and pressure experience portion 3 can also be made gentle
Angle between stream is consistent, and greatly improves the precision for the temperature that temperature sensation portion 2 measures, and then pass through temperature sensation portion
The accuracy of the 2 calculating aerodynamic parameters calculated greatly improves.
As a preferred embodiment, three load cells respectively pass through the first pressure-measuring pipe 301, the second pressure-measuring pipe
302nd, the 3rd pressure-measuring pipe 303 and be arranged on inside feeler lever 1 respectively with the first pressure-measuring pipe 301, the second pressure-measuring pipe the 302, the 3rd
The pressure guiding pipe that pressure-measuring pipe 303 is connected is connected with pressure measuring unit.
Wherein, by being arranged on, the pressure of 1 one end of feeler lever connects mouth 101 to pressure guiding pipe and sebific duct is connected with pressure measuring unit.And
Pressure connects mouth 101 and elects pagoda head as, i.e., beneficial to fast assembling-disassembling sebific duct, is also beneficial to seal with pressure measuring unit.
As another preferred embodiment, the first pressure-measuring pipe 301, the second pressure-measuring pipe 302, one end of the 3rd pressure-measuring pipe 303
It is arranged on the circumference of same cross section of feeler lever 1, the first pressure-measuring pipe 301, the second pressure-measuring pipe 302, the 3rd pressure-measuring pipe 303
The other end be directed to the center of circle of this cross section, the mouth of pipe direction of the second pressure-measuring pipe 302 and the aperture direction one of gas run-in-hole 203
Cause.
Further, the angle between the second pressure-measuring pipe 302 and the first pressure-measuring pipe 301, the 3rd pressure-measuring pipe 303 is 45 °.
When the angle between the second pressure-measuring pipe 302 and the first pressure-measuring pipe 301, the 3rd pressure-measuring pipe 303 is 45° angle, these three pressure-measuring pipes
Interior load cell is to airflow direction sensitiveness highest.
As another preferred embodiment, probe further includes what is be connected with one end of the feeler lever 1 away from temperature sensation portion 2
Angle block gauge 4, angle block gauge 4 are used for the survey for measuring 2 stream field of pressure experience portion 3 and temperature sensation portion being installed on inside turbomachinery
Measuring angle.
Wherein, as shown in figure 4, the section of 4 bottom of angle block gauge is rectangle, and rectangular long side with the mouth of pipe is gentle flows into
The consistent pressure-measuring pipe tube body in the aperture direction in hole 203, i.e., the antarafacial between 302 tube body of rectangular long side and the second pressure-measuring pipe are straight
Line angulation is 90 °.
Further, gas run-in-hole 203 is truncated cone-shaped hole of the bevel angle between 45 ° to 60 °, and truncated cone-shaped hole is along opening
Its internal diameter of set direction gradually increases.Gas run-in-hole 203 can make air-flow through 203 steady flow of gas run-in-hole for the design in truncated cone-shaped hole
Enter in flow guide sleeve 201.
Further, the side of the flow guide sleeve 201 away from gas run-in-hole 203 is provided with relief hole 204.
As another preferred embodiment, temperature-sensitive unit 202 is electroheat pair idol head, one end of electroheat pair idol head and electroheat pair
One end of extended line 205 is connected, and the other end of electroheat pair extended line 205 is through the inside of feeler lever 1 and from away from electroheat pair idol
One end of head is pierced by.
A kind of application method of temperature pressure combinations probe for measuring turbomachinery interior flow field includes the following steps：
(1) before measuring, which is demarcated, draw under different Mach number corresponding air-flow yaw angle, stagnation pressure,
Static pressure, the absolute pressure of load cell, direction calibration coefficient, stagnation pressure calibration coefficient, static pressure calibration coefficient and temperature adjustmemt system
Number；
(2) when measuring, rotating the probe makes the mouth of pipe of the second pressure-measuring pipe be directed at the direction of flow of air-flow, while recording angular
Specific angle between block and benchmark rotation, in three pressure and step (1) by three load cells measured
Data, return the yaw angle drilled between the stagnation pressure that the measuring point is calculated, static pressure, Mach number and air-flow phase and probe, then pass through
The angle and the rotating angle of angle block gauge and benchmark obtain the angle of air-flow and benchmark；
(3) temperature corresponding with pressure experience portion is measured by temperature sensation portion, and the temperature that probe calibration is drawn is repaiied
Positive coefficient, the total moisture content that the measurement position is calculated is drilled by returning, it can be used for obtaining gas to the calculating of air velocity
Flow velocity degree, it can also be used to the calculating of other aerodynamic parameters.
It should be noted last that above embodiment is merely illustrative of the technical solution of the present invention and unrestricted,
Although the present invention is described in detail with reference to example, it will be understood by those of ordinary skill in the art that, can be to the present invention
Technical solution technical scheme is modified or replaced equivalently, without departing from the spirit and scope of technical solution of the present invention, it should all cover
Among scope of the presently claimed invention.
Claims (10)
1. the temperature pressure combinations probe for measuring turbomachinery interior flow field, it is characterised in that including：
Feeler lever (1), it is used to be installed on inside turbomachinery, and stretches into flow field to be measured；
Temperature sensation portion (2), it includes the flow guide sleeve (201) being connected with the feeler lever (1) one end and is arranged on described lead
Stream covers the temperature-sensitive unit (202) of (201) interior intracavitary, and gas run-in-hole (203), the air-flow are provided with the flow guide sleeve (201)
It is in contact behind inner cavity into hole (203) for air-flow to be imported to the flow guide sleeve (201) with the temperature-sensitive unit (202)；
Pressure experience portion (3), it is positioned close on the feeler lever (1) of the temperature sensation portion (2), it includes three and is used for
Place the pressure-measuring pipe of load cell, and the mouth of pipe direction of a pressure-measuring pipe and the aperture direction of the gas run-in-hole (203)
Unanimously.
2. the temperature pressure combinations probe according to claim 1 for being used to measure turbomachinery interior flow field, its feature exist
In three load cells respectively by a pressure-measuring pipe and are arranged on the internal pressure guiding pipe of the feeler lever (1)
It is connected with pressure measuring unit.
3. the temperature pressure combinations probe according to claim 2 for being used to measure turbomachinery interior flow field, its feature exist
In the pressure guiding pipe connects mouth (101) and sebific duct and the pressure measuring unit phase by being arranged on the pressure of the feeler lever (1) one end
Even.
4. the temperature pressure combinations probe according to claim 1 for being used to measure turbomachinery interior flow field, its feature exist
In one end of three pressure-measuring pipes is arranged on the circumference of the same cross section of the feeler lever (1), its other end refers both to
To the center of circle of the cross section, the mouth of pipe direction of the centrally located pressure-measuring pipe and the hole of the gas run-in-hole (203)
Mouth direction is consistent.
5. the temperature pressure combinations probe according to claim 4 for being used to measure turbomachinery interior flow field, its feature exist
In the angle between the middle pressure-measuring pipe and the pressure-measuring pipe of its both sides is 45 °.
6. the temperature pressure combinations probe according to claim 1 for being used to measure turbomachinery interior flow field, its feature exist
In, the probe further includes the angle block gauge (4) being connected with one end of the feeler lever (1) away from the temperature sensation portion (2),
The angle block gauge (4) is used to measure the pressure experience portion (3) being installed on inside turbomachinery and temperature sensation portion (2) convection current
The measurement angle of field.
7. the temperature pressure combinations probe according to claim 6 for being used to measure turbomachinery interior flow field, its feature exist
In the section of, angle block gauge (4) bottom be rectangle, and the rectangular long side and the mouth of pipe and the gas run-in-hole
(203) the different surface beeline angulation between the consistent pressure-measuring pipe tube body in aperture direction is 90 °.
8. the temperature pressure combinations probe according to claim 1 for being used to measure turbomachinery interior flow field, its feature exist
It is truncated cone-shaped hole of the bevel angle between 45 ° to 60 ° in, the gas run-in-hole (203), the truncated cone-shaped hole is along the side of opening up
Gradually increase to its internal diameter.
9. the temperature pressure combinations probe according to claim 1 for being used to measure turbomachinery interior flow field, its feature exist
In the side of the flow guide sleeve (201) away from the gas run-in-hole (203) is provided with relief hole (204).
10. the temperature pressure combinations for being used to measure turbomachinery interior flow field according to claim 1 to 9 any one of them are visited
Pin, it is characterised in that the temperature-sensitive unit (202) is electroheat pair idol head, and one end and the electroheat pair of the electroheat pair idol head extend
One end of line (205) is connected, and the other end of the electroheat pair extended line (205) is through the inside of the feeler lever (1) and from remote
One end from the electroheat pair idol head is pierced by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711395192.0A CN107907232A (en) | 2017-12-21 | 2017-12-21 | For measuring the temperature pressure combinations probe of turbomachinery interior flow field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711395192.0A CN107907232A (en) | 2017-12-21 | 2017-12-21 | For measuring the temperature pressure combinations probe of turbomachinery interior flow field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107907232A true CN107907232A (en) | 2018-04-13 |
Family
ID=61870639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711395192.0A Pending CN107907232A (en) | 2017-12-21 | 2017-12-21 | For measuring the temperature pressure combinations probe of turbomachinery interior flow field |
Country Status (1)
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| CN (1) | CN107907232A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238511A (en) * | 2018-07-19 | 2019-01-18 | 中国航发沈阳发动机研究所 | A kind of temperature test detector probe |
| CN111413004A (en) * | 2020-03-31 | 2020-07-14 | 中国航发湖南动力机械研究所 | Temperature probe and method for measuring temperature of air flow |
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Application publication date: 20180413 |
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