CN108871759A - A kind of turbine efficiency measuring device - Google Patents
A kind of turbine efficiency measuring device Download PDFInfo
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- CN108871759A CN108871759A CN201810510831.1A CN201810510831A CN108871759A CN 108871759 A CN108871759 A CN 108871759A CN 201810510831 A CN201810510831 A CN 201810510831A CN 108871759 A CN108871759 A CN 108871759A
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- testing agency
- temperature
- pressure
- measuring device
- gas flow
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
Abstract
The invention discloses a kind of turbine efficiency measuring devices, including：It is set to exhaust gas and enters the first temperature testing organization of pipeline, first pressure testing agency；It is set to second temperature testing agency, the second pressure testing agency in exhaust emission tube road；Gas flow equalization mechanism, gas flow equalization mechanism are set in exhaust emission tube road, for rectifying the exhaust gas of discharge uniformly；Control centre, control centre and the first temperature testing organization, first pressure testing agency, second temperature testing agency, the equal communication connection of second pressure testing agency.Exhaust gas is rectified into the air-flow of temperature, pressure distribution approaches uniformity after gas flow equalization structure by sinuous flow, pressure and temperature when exhaust gas discharge can be accurately obtained by the measurement to the uniform air flow, the efficiency of turbine can be accurately calculated by entering the exhaust gas pressure measured at pipeline, temperature in conjunction with exhaust gas, it is smaller to the change of turbine self structure, it is simple and convenient.
Description
Technical field
The present invention relates to technical field of internal combustion engines, more particularly to a kind of turbine efficiency measuring device.
Background technique
All the time, the efficiency of turbine is always without more accurate easy measuring device, main reason is that turbine
Waste gas outlet at air-flow it is more chaotic, the temperature difference, the pressure difference at air-flow center and edge are larger, if only measurement waste gas outlet
The temperature or pressure for locating certain a part carry out efficiency calculation and then there is large error, and if to the multiple portions at waste gas outlet
It is also infeasible to measure then averagely value, reason is that operator can not can guarantee that repeatedly measurement all has identical reality
Environment is tested, and workload and work difficulty are also relatively high；Therefore, how a kind of easy, accurate turbine efficiency measurement is provided
Device becomes a problem of those skilled in the art's urgent need to resolve.
Summary of the invention
In view of this, the present invention provides a kind of turbine efficiency measuring devices, including：
It is set to exhaust gas and enters the first temperature testing organization of pipeline, first pressure testing agency；
It is set to second temperature testing agency, the second pressure testing agency in exhaust emission tube road；
Gas flow equalization mechanism, the gas flow equalization mechanism are set in exhaust emission tube road, for keeping the exhaust gas of discharge equal
Neat and well spaced stream, and the second temperature testing agency, second pressure testing agency are respectively positioned on the gas flow equalization mechanism and exhaust gas is arranged
Out between pipe outlet；
Control centre, the control centre and the first temperature testing organization, first pressure testing agency, second temperature detect
Mechanism, the equal communication connection of second pressure testing agency.
Beneficial effect by adopting the above technical scheme is：Exhaust gas is rectified into after gas flow equalization structure by strong non-uniform flow
The air-flow of temperature, pressure distribution approaches uniformity can accurately obtain pressure when exhaust gas discharge by the measurement to the uniform air flow
Power and temperature, the exhaust gas pressure measured at pipeline, temperature are entered in conjunction with exhaust gas can accurately calculate the efficiency of turbine, right
The change of turbine self structure is smaller, simple and convenient.
Preferably, the gas flow equalization mechanism is made of porous materials, outer edge and exhaust emission tube road inner edge
Edge is fixedly connected or is detachably connected, and the porosity of the gas flow equalization mechanism is 0.4-0.8.
Further, the porous material can be the good foaming structure metal of thermal conductivity, honeycomb metal, lotus root shape
The combination of one or more of structural metal, foam metal can achieve temperature identical with discharge exhaust gas in a short time；Gas
The length of Ti Junliu mechanism can be adjusted according to test situation, as long as off-gas flows can be made to pass through temperature after the gas flow equalization mechanism
Degree, pressure are uniformly distributed.
Preferably, the gas flow equalization mechanism is an integral structure or hierachical structure.Either integral type or layering
Formula structure is able to achieve the current balance function of gas；About hierachical structure, foam metal can be cut into multiple round pie gold
Belong to piece, the shape of sheet metal is adapted to and is fixedly connected with exhaust emission tube road inner wall shape, is separated by between sheet metal and sheet metal
A distance, the distance between each sheet metal can be the same or different.
It preferably, further include heat insulation loop, the heat insulation loop is set to the gas flow equalization mechanism and the exhaust emission tube
Between road, since gas flow equalization structure is made of metal foam, thermal conductivity is preferable, to prevent the waste-gas heat of discharge to be lost,
It installs the heat insulation loop made of heat-barrier material additional between gas flow equalization structure and exhaust emission tube road, guarantees that exhaust gas temperature will not dissipate
It loses, improves the accuracy of test.
Preferably, first temperature testing organization, second temperature testing agency are temperature sensor.First pressure
Tension detection mechanism, second pressure testing agency are pressure sensor.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 attached drawing is the structural schematic diagram provided by the invention with integrated air Jun Liu mechanism；
Fig. 2 attached drawing is the structural schematic diagram provided by the invention with layer-stepping gas flow equalization mechanism.
Wherein, the first temperature sensor of 1-, 2- first pressure sensor, 3- compressor, 4- turbine, 5- heat insulation loop, 6- gas
Ti Junliu mechanism, 7- second temperature sensor, 8- second pressure sensor, 9- exhaust gas enter pipeline, 10- exhaust emission tube road,
11- exhaust emission tube road junction, A- air intlet, B- air outlet slit, C- exhaust gas inlet, D- waste gas outlet.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Turbine efficiency measuring device according to embodiments of the present invention, including：
It is set to exhaust gas and enters the first temperature testing organization of pipeline 9, first pressure testing agency；
It is set to second temperature testing agency, the second pressure testing agency in exhaust emission tube road 10；
Gas flow equalization mechanism 6,6 structure of gas flow equalization machine are set in exhaust emission tube road 10, for keeping the exhaust gas of discharge equal
Neat and well spaced stream, and second temperature testing agency, second pressure testing agency are respectively positioned on gas flow equalization mechanism 6 and exhaust emission tube road 10
Between outlet；
Control centre, control centre and the first temperature testing organization, first pressure testing agency, second temperature detection machine
Structure, the equal communication connection of second pressure testing agency.
In embodiments of the present invention, gas flow equalization mechanism 6 is made of foam copper, in outer edge and exhaust emission tube road 10
Edge is fixedly connected, and the porosity of foam copper is 0.5.
As shown in Figure 1, in embodiments of the present invention, gas flow equalization mechanism 6 can be an integral structure.
As shown in Fig. 2, in another embodiment, gas flow equalization mechanism 6 can be hierachical structure.
It in embodiments of the present invention, further include heat insulation loop 5, heat insulation loop 5 is set to gas flow equalization mechanism 6 and exhaust emission tube
Between road 10.
The first temperature testing organization is the first temperature sensor 1 in embodiments of the present invention, and second temperature testing agency is
Second temperature sensor 7.First pressure testing agency position first pressure sensor 2, second pressure testing agency are second pressure
Sensor 8.
Specific testing process is as follows：
Start turbine 4, compressor 3 is driven to start to work, air is entered by air intake A, is discharged by air outlet slit B, is given up
Gas enters exhaust gas via exhaust gas entrance C and enters pipeline, and exhaust gas flows to exhaust emission tube road 10 after driving turbine 4, and exhaust gas passes through gas
It is discharged after body current equalizing structure 6 by waste gas outlet D；
After turbine 4 runs a period of time, the temperature of gas flow equalization structure 6 is roughly the same with exhaust gas temperature, at this point, the first temperature
Degree sensor 1 detects exhaust gas and enters exhaust gas total temperature at pipeline：T* Turbine inlet；2 wasted nickel catalyst of first pressure sensor enters at pipeline
Exhaust gas stagnation pressure：P* Turbine inlet；Second temperature sensor 7 detects exhaust gas total temperature at exhaust emission tube road：T* Turbine outletOr static temperature：TTurbine outlet；
Second pressure sensor 8 detects exhaust gas stagnation pressure at exhaust emission tube road：P* Turbine outletOr static pressure：PTurbine outlet；Pass through following public affairs after detection
Formula confirms turbine power：
Always-gross efficiency：
Always-quiet efficiency：
Wherein, T* is total temperature, and P* is stagnation pressure, and T is static temperature, and P is static pressure, and κ is exhaust gas adiabatic exponent.
The present invention provides a kind of turbine efficiency test device, and exhaust gas is rectified after gas flow equalization structure by strong non-uniform flow
The air-flow of approaches uniformity is distributed for temperature, pressure, when can accurately show that exhaust gas is discharged by the measurement to the uniform air flow
Pressure and temperature, the exhaust gas pressure measured at pipeline, temperature are entered in conjunction with exhaust gas can accurately calculate the efficiency of turbine,
It is smaller to the change of turbine self structure, it is simple and convenient.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (8)
1. a kind of turbine efficiency measuring device, which is characterized in that including：
It is set to exhaust gas and enters the first temperature testing organization of pipeline (9), first pressure testing agency；
It is set to second temperature testing agency, the second pressure testing agency in exhaust emission tube road (10)；
Gas flow equalization mechanism (6), the gas flow equalization mechanism (6) are set in exhaust emission tube road (10), for making discharge
Exhaust gas uniformly rectifies, and the second temperature testing agency, second pressure testing agency are respectively positioned on the gas flow equalization mechanism (6)
Between exhaust emission tube road (10) outlet；
Control centre, the control centre and the first temperature testing organization, first pressure testing agency, second temperature detection machine
Structure, the equal communication connection of second pressure testing agency.
2. a kind of turbine efficiency measuring device according to claim 1, which is characterized in that the gas flow equalization mechanism (6)
It is made of porous materials, outer edge is fixedly connected or is detachably connected with exhaust emission tube road (10) inward flange.
3. a kind of turbine efficiency measuring device according to claim 2, which is characterized in that the gas flow equalization mechanism (6)
It is an integral structure or hierachical structure.
4. a kind of turbine efficiency measuring device according to claim 2, which is characterized in that the porosity of the porous material
For 0.4-0.8.
5. a kind of turbine efficiency measuring device according to claim 2, which is characterized in that the porous material is thermal conductivity
The combination of one or more of good foaming structure metal, honeycomb metal, Lotus-type Structure metal.
6. a kind of turbine efficiency measuring device according to claim 2, which is characterized in that it further include heat insulation loop (5), it is described
Heat insulation loop (5) is set between the gas flow equalization mechanism (6) and the exhaust emission tube road (10).
7. a kind of turbine efficiency measuring device according to claim 1, which is characterized in that first temperature detector
Structure, second temperature testing agency are temperature sensor.
8. a kind of turbine efficiency measuring device according to claim 1, which is characterized in that the first pressure detection machine
Structure, second pressure testing agency are pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810510831.1A CN108871759A (en) | 2018-05-24 | 2018-05-24 | A kind of turbine efficiency measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810510831.1A CN108871759A (en) | 2018-05-24 | 2018-05-24 | A kind of turbine efficiency measuring device |
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| CN108871759A true CN108871759A (en) | 2018-11-23 |
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| CN201810510831.1A Pending CN108871759A (en) | 2018-05-24 | 2018-05-24 | A kind of turbine efficiency measuring device |
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Citations (8)
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| CN102095583A (en) * | 2010-12-04 | 2011-06-15 | 芜湖杰锋汽车动力系统有限公司 | Performance test device of mechanical supercharger |
| US20110154821A1 (en) * | 2009-12-24 | 2011-06-30 | Lincoln Evans-Beauchamp | Estimating Pre-Turbine Exhaust Temperatures |
| CN103630353A (en) * | 2013-12-13 | 2014-03-12 | 湖南天雁机械有限责任公司 | Method and device for detecting turbocharger through finished automobile road test |
| US9133792B2 (en) * | 2011-08-17 | 2015-09-15 | GM Global Technology Operations LLC | Unit for estimating the rotational speed of a turbocharger and system and method for controlling an internal combustion engine with a turbocharger |
| CN204705475U (en) * | 2015-06-23 | 2015-10-14 | 常熟理工学院 | The performance testing device of exhaust-driven turbo-charger exhaust-gas turbo charger |
| CN105223008A (en) * | 2015-09-29 | 2016-01-06 | 安徽江淮汽车股份有限公司 | A kind of turbocharger test device |
| CN107490475A (en) * | 2017-09-19 | 2017-12-19 | 福州大学 | A kind of turbocharger performance testing stand and test method with exhaust energy recovery |
| CN107677482A (en) * | 2017-08-10 | 2018-02-09 | 中国北方发动机研究所(天津) | A kind of method of testing of tandem pressure charging system gross efficiency |
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2018
- 2018-05-24 CN CN201810510831.1A patent/CN108871759A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110154821A1 (en) * | 2009-12-24 | 2011-06-30 | Lincoln Evans-Beauchamp | Estimating Pre-Turbine Exhaust Temperatures |
| CN102095583A (en) * | 2010-12-04 | 2011-06-15 | 芜湖杰锋汽车动力系统有限公司 | Performance test device of mechanical supercharger |
| US9133792B2 (en) * | 2011-08-17 | 2015-09-15 | GM Global Technology Operations LLC | Unit for estimating the rotational speed of a turbocharger and system and method for controlling an internal combustion engine with a turbocharger |
| CN103630353A (en) * | 2013-12-13 | 2014-03-12 | 湖南天雁机械有限责任公司 | Method and device for detecting turbocharger through finished automobile road test |
| CN204705475U (en) * | 2015-06-23 | 2015-10-14 | 常熟理工学院 | The performance testing device of exhaust-driven turbo-charger exhaust-gas turbo charger |
| CN105223008A (en) * | 2015-09-29 | 2016-01-06 | 安徽江淮汽车股份有限公司 | A kind of turbocharger test device |
| CN107677482A (en) * | 2017-08-10 | 2018-02-09 | 中国北方发动机研究所(天津) | A kind of method of testing of tandem pressure charging system gross efficiency |
| CN107490475A (en) * | 2017-09-19 | 2017-12-19 | 福州大学 | A kind of turbocharger performance testing stand and test method with exhaust energy recovery |
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Application publication date: 20181123 |