CN107762956A - The testing stand and test method that high-temperature steam influences on Stability of Axial compressors - Google Patents
The testing stand and test method that high-temperature steam influences on Stability of Axial compressors Download PDFInfo
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- CN107762956A CN107762956A CN201710809874.5A CN201710809874A CN107762956A CN 107762956 A CN107762956 A CN 107762956A CN 201710809874 A CN201710809874 A CN 201710809874A CN 107762956 A CN107762956 A CN 107762956A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
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Abstract
The testing stand and test method influenceed the invention discloses a kind of high-temperature steam on Stability of Axial compressors, including high-temperature steam generator, admission line, axial flow compressor, discharge duct, choke valve and the motor set gradually from front to back；By adjusting pressure and electromagnetic valve aperture in high-temperature steam generator, different pressures, the high-temperature steam of flow are produced；Using the flow of the throttle valve adjustment axial flow compressor of discharge duct, axial flow compressor operating point is moved to stability boundaris, obtain the stability boundaris of axial flow compressor；The rotating speed line such as uniform air inlet and high-temperature steam suction condition Axial-flow Compressor is measured, obtains influence of the high-temperature steam suction to Stability of Axial compressors.The present invention is simple in construction, easy to operate, securely and reliably, rule of the high-temperature steam suction on Stability of Axial compressors influence is obtained by accurate simulation and contrast experiment, can be that the safe operation of aero-engine provide safeguard.
Description
Technical field
The testing stand and test method influenceed the present invention relates to a kind of high-temperature steam on Stability of Axial compressors, belongs to leaf
Wheel mechanical technical field.
Background technology
Carrier-borne aircraft is in carrier-based, if substantial amounts of high using steam catapult, the suction of aeroplane engine chance
Warm steam, engine unstability can be caused when serious.From aircraft in appearance, the engine unstability as caused by sucking high-temperature steam
Can be that nozzle exports to form obvious flame in airplane tail group.Unstability can not only reduce the thrust of aero-engine,
Also make its cyclically-varying of the internal part in pneumatic and structure, reduce the safe to use and life-span.Steam catapult makes
Its sealing can be caused worse and worse by being increased with the time, and the high-temperature steam of leakage increases, and the influence to aero-engine is more aobvious
Write.Compression member of the compressor as aero-engine, the quality of engine stabilization is directly determined, therefore high-temperature steam is inhaled
Enter the influence to aero-engine and be mainly reflected in its influence to compressor.Therefore, it is highly desirable to carry out high-temperature steam pair
The experiment that Stability of Axial compressors influences, so as to be provided safeguard for the safe to use of aero-engine.At present, do not have both at home and abroad
There is the testing stand established and influenceed dedicated for the suction of researching high-temperature steam on Compressor Stability, also without the experiment side of correlation
Method.
The content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, the present invention provides a kind of high-temperature steam to axle stream pressure
The testing stand and test method of mechanism of qi stability influence, there is simple in construction, easy to operate, safe and reliable, Neng Goutong
Cross contrast experiment and obtain high-temperature steam soakage, high-temperature steam respiratory time and high-temperature steam spatial distribution form and axle stream is calmed the anger
The rule of machine stability influence.
Technical scheme：To achieve the above object, the technical solution adopted by the present invention is：
The testing stand that a kind of high-temperature steam influences on Stability of Axial compressors, including the high temperature set gradually from front to back
Steam generator, admission line, axial flow compressor, discharge duct and motor；
Wherein, high-temperature steam generator includes high-pressure boiler, high-temperature steam conveyance conduit and high-temperature steam fan nozzle,
The gas outlet of high-pressure boiler is connected by high-temperature steam conveyance conduit with high-temperature steam fan nozzle, and fan-shaped by high-temperature steam
Nozzle conveys high-temperature steam into admission line, and quick response magnetic valve is provided with high-temperature steam conveyance conduit；
The admission line is connected by axial flow compressor with discharge duct, and axial flow compressor front end is set in admission line
The radome fairing for the air-flow that smoothly transits is equipped with, radome fairing is fixed on by pole on the casing of axial flow compressor front end；
The exhaust ports of the discharge duct are provided with hydraulic throttle valve, and discharge duct tail end is provided with choke valve liquid
Pressure control system, axial location of the choke valve along discharge duct is adjusted by choke valve hydraulic control system, to realize axle stream
The flow control of compressor；The output shaft of the motor is connected with the rotating shaft of axial flow compressor, is realized by motor
The rotating speed control of axial flow compressor.
Preferably, the air inlet flare of the admission line, so as to improve the air inlet effect of admission line.
Preferably, the section of the choke valve is triangular in shape, by adjust axial location of the choke valve along discharge duct come
Change the circulation area between the choke valve conical surface and discharge duct wall, so as to adjust the flow of axial flow compressor.
Preferably, the high-temperature steam fan nozzle is removably connected with high-temperature steam conveyance conduit, and high-temperature steam
The segment angle of fan nozzle is respectively adopted 30 degree, 45 degree, 60 degree and 90 degree.
Preferably, the high-pressure boiler uses electrical heating or fuel Heating, its discharge quantity of steam be 500-1000 kilograms/it is small
When, and steam pressure is 0.1-1.0Mpa.
The test method that a kind of high-temperature steam influences on Stability of Axial compressors, comprises the following steps：
Step 1：Preparation
Quick response magnetic valve is in power-off closed mode during beginning, starts high-pressure boiler and by the steam in high-pressure boiler
High-temperature steam fan nozzle is placed in front of the air inlet of admission line by pressure, temperature adjustment to pressure, temperature is set, and
The throttle valve position of discharge duct is adjusted by choke valve hydraulic control system, makes exhaust ports in full open position；
Step 2：Variable Control
Start motor, and realize that the rotating speed of axial flow compressor controls by motor；By adjusting high-pressure boiler
Steam discharge valve door aperture adjust high-temperature steam conveying capacity of the high-temperature steam fan nozzle to admission line, realize axle stream pressure
The control of mechanism of qi high-temperature steam soakage；By quick response magnetic valve cut-off realize axial flow compressor high-temperature steam suck when
Between control, and realize by the replacing of high-temperature steam fan nozzle the control of high-temperature steam spatial distribution form in admission line
System；
Step 3：Parameter measurement
Admission line being measured using steady state pressure measuring system (such as DTC net pressure scannings valve system produced in USA)
Air inlet static pressure, using dynamic pressure measurement instrument (as Belgium production the dynamic pressure measurement instrument of LMS Scada III) measure into
The transient state stagnation pressure of gas port and exhaust outlet, and the transient state stagnation temperature of air inlet and exhaust outlet is measured using fast thermocouple, to obtain
Obtain instantaneous delivery, overall pressure tatio and the efficiency of axial flow compressor；
Axial location of the choke valve along discharge duct is adjusted by choke valve hydraulic control system, changes the choke valve conical surface
With the circulation area between discharge duct wall, to adjust the flow of axial flow compressor, make compressor operatlng polnt to stability boundaris
It is mobile, so as to obtain compressor stability boundaris；The grade for measuring uniform air inlet and high-temperature steam suction condition Axial-flow Compressor turns
Fast line, so as to obtain influence of the high-temperature steam suction to Stability of Axial compressors.
Beneficial effect：The testing stand and experiment that a kind of high-temperature steam provided by the invention influences on Stability of Axial compressors
Method, relative to prior art, there is advantages below：1st, it is simple in construction, it is easy to operate, securely and reliably, it can be repeated, and
Result of the test is directly perceived, comprehensive, reliable；2nd, high-temperature steam soakage can be obtained by accurate simulation and contrast experiment, high temperature steams
The rule that vapour respiratory time and high-temperature steam spatial distribution form influence on Stability of Axial compressors, to the peace of aero-engine
Full reliability service has important directive significance.
Brief description of the drawings
Fig. 1 is the structural representation for the testing stand that a kind of high-temperature steam of the present invention influences on Stability of Axial compressors；
Fig. 2 (a)~(d) is the fan-shaped spray of high-temperature steam that segment angle is respectively 30 degree, 45 degree, 60 degree and 90 degree in the present invention
The structural representation of mouth；
Figure includes：1st, high-pressure boiler, 2, quick response magnetic valve, 3, high-temperature steam conveyance conduit, 4, air inlet, 5, enter
Feed channel, 6, radome fairing, 7, pole, 8, stator, 9, discharge duct, 10, choke valve, 11, rotating shaft, 12, motor, 13, high
Warm steam fan nozzle, 14, casing, 15, rotor, 16, choke valve hydraulic control system.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is further described to the present invention.
The testing stand influenceed as shown in Figure 1 on Stability of Axial compressors for a kind of high-temperature steam, including from front to back according to
High-temperature steam generator, admission line 5, axial flow compressor, discharge duct 9 and the motor 12 of secondary setting；
Wherein, the high-temperature steam generator includes high-pressure boiler 1, high-temperature steam conveyance conduit 3 and high-temperature steam fan
Shape nozzle 13, the gas outlet of high-pressure boiler 1 is connected by high-temperature steam conveyance conduit 3 with high-temperature steam fan nozzle 13, and is led to
Cross high-temperature steam fan nozzle 13 and high-temperature steam is conveyed into admission line 5, and be provided with high-temperature steam conveyance conduit 3 quick
Respond magnetic valve 2；
The admission line 5 is connected by axial flow compressor with discharge duct 9, and in admission line 5 before axial flow compressor
End is provided with radome fairing 6, and radome fairing 6 is fixed on the casing 14 of axial flow compressor front end by four poles 7；
The exhaust ports of the discharge duct 9 are provided with hydraulic throttle valve 10, and the tail end of discharge duct 9 is provided with throttling
Valve hydraulic control system 16, axial location of the choke valve 10 along discharge duct 9 is adjusted by choke valve hydraulic control system 16；Institute
State that the section of choke valve 10 is triangular in shape, change choke valve 10 by adjusting axial location of the choke valve 10 along discharge duct 9
Circulation area between the conical surface and the wall of discharge duct 9, realize the flow control of axial flow compressor；The motor 12 it is defeated
Shaft is connected with the level of rotating shaft 11 of axial flow compressor, and the rotating speed for realizing axial flow compressor by motor 12 controls.
In the present embodiment, the flare of air inlet 4 of the admission line 5；The axial flow compressor is two-layer configuration, bag
Include the two-stage rotor 15 being connected with rotating shaft 11 and the two-stage stator 8 being fixed on casing 14.
In the present embodiment, the high-temperature steam fan nozzle 13 is removably connected with high-temperature steam conveyance conduit 3, and high
The segment angle of warm steam fan nozzle 13 is respectively adopted 30 degree, 45 degree, 60 degree and 90 degree, as shown in Fig. 2 (a)~(d)；The height
Boiler 1 is pressed to use electrical heating or fuel Heating, it is 500-1000 kgs/hour that it, which discharges quantity of steam, and steam pressure is 0.5-
1.0Mpa。
The test method that a kind of high-temperature steam influences on Stability of Axial compressors, comprises the following steps：
Step 1：Preparation
Quick response magnetic valve 2 is in power-off closed mode during beginning, starts high-pressure boiler 1 and by high-pressure boiler 1
High-temperature steam fan nozzle 13 is placed on the air inlet 4 of admission line 5 by steam pressure, temperature adjustment to pressure, temperature is set
Front, and the position of choke valve 10 of discharge duct 9 is adjusted by choke valve hydraulic control system 16, make exhaust ports in beating completely
Open state；
Step 2：Variable Control
Start motor 12, and realize that the rotating speed of axial flow compressor controls by motor 12；Pass through high-pressure boiler 1
Steam discharge valve door aperture adjust high-temperature steam conveying capacity of the high-temperature steam fan nozzle 13 to admission line 5, realize axle
The control of flow air compressor high-temperature steam soakage；Axial flow compressor high-temperature steam is realized by cut-offfing for quick response magnetic valve 2
The control of respiratory time, and high-temperature steam spatial distribution in admission line 5 is realized by the replacing of high-temperature steam fan nozzle 13
The control of form；
Step 3：Parameter measurement
Admission line 5 is measured using steady state pressure measuring system (DTC net pressure scannings valve system such as produced in USA)
The static pressure of air inlet 4, using dynamic pressure measurement instrument (as Belgium production the dynamic pressure measurement instrument of LMS Scada III) measurement
The transient state stagnation pressure of air inlet 4 and exhaust outlet, and the transient state stagnation temperature of fast thermocouple measurement air inlet 4 and exhaust outlet is used, with
Obtain instantaneous delivery, overall pressure tatio and the efficiency of axial flow compressor；
Axial location of the choke valve 10 along discharge duct 9 is adjusted by choke valve hydraulic control system 16, realizes axle stream pressure
The flow control of mechanism of qi, makes compressor operatlng polnt be moved to stability boundaris, so as to obtain compressor stability boundaris；Measurement is uniformly entered
Gas and high-temperature steam suction condition Axial-flow Compressor etc. rotating speed line, it is steady to axial flow compressor so as to obtain high-temperature steam suction
Qualitatively influence.
The testing stand and test method that a kind of high-temperature steam provided by the invention influences on Stability of Axial compressors can be with
Carry out tests below research：
(A) experiment that high-temperature steam soakage influences on Stability of Axial compressors；
(B) experiment that high-temperature steam respiratory time influences on Stability of Axial compressors；
(C) experiment that high-temperature steam spatial distribution form influences on Stability of Axial compressors.
Wherein, the experiment that high-temperature steam soakage influences on Stability of Axial compressors specifically includes following steps：
Quick response magnetic valve 2 is in power-off closed mode when A1) starting, and starts high-pressure boiler 1 and by high-pressure boiler 1
Steam pressure, temperature adjustment are to setting pressure, temperature, such as 1Mpa, 393K；
A2) high-temperature steam fan nozzle 13 is placed on to the front of air inlet 4 of admission line 5；
A3 the position of choke valve 10 of discharge duct 9) is adjusted by choke valve hydraulic control system 16, make exhaust ports in
Full open position；
A4) start motor 12, and adjusted axial flow compressor to setting speed by motor 12；
A5) the steam discharge valve door of high-pressure boiler 1 is adjusted to setting aperture, and connects quick response magnetic valve 2, is led to
Cross high-temperature steam fan nozzle 13 and convey high-temperature steam into admission line 5；
A6 axial location of the choke valve 10 along discharge duct 9) is adjusted by choke valve hydraulic control system 16, reduces row
Gas port circulation area, reduce the flow of axial flow compressor；
A7) using the static pressure of air inlet 4 of steady state pressure measuring system measurement admission line 5, using dynamic pressure measurement instrument
The transient state stagnation pressure of air inlet 4 and exhaust outlet is measured, and it is total using the transient state of fast thermocouple measurement air inlet 4 and exhaust outlet
Temperature, to obtain the instantaneous delivery of axial flow compressor, overall pressure tatio and efficiency；
A8) repeat step A6-A7, the flow of axial flow compressor is adjusted by choke valve 10, makes axial flow compressor operating point
Moved to stability boundaris, until axial flow compressor unstability, last stable operating point is exactly the compressor under current rotating speed
Stability boundaris point；
A9) sucked by adjusting the steam discharge valve door aperture of high-pressure boiler 1 to adjust the high-temperature steam of axial flow compressor
Amount, and repeat step A5-A8, so as to obtain the rotating speed lines such as the compressor of different high-temperature steam soakages；
A10 the rotating speed of axial flow compressor, and repeat step A5-A9) are adjusted by motor 12, so as to obtain difference
Compressor flow, overall pressure tatio and the efficiency of different high-temperature steam soakages under speed conditions；
A11 the characteristic of compressor under uniform air inlet and different high-temperature steam soakage inlet air conditions) is contrasted, high temperature is obtained and steams
Influence of the vapour soakage to Stability of Axial compressors.
And the experiment that high-temperature steam respiratory time influences on Stability of Axial compressors specifically includes following steps：
Quick response magnetic valve 2 is in power-off closed mode when B1) starting, and starts high-pressure boiler 1 and by high-pressure boiler 1
Steam pressure, temperature adjustment are to setting pressure, temperature, such as 1Mpa, 393K；
B2) high-temperature steam fan nozzle 13 is placed on to the front of air inlet 4 of admission line 5；
B3 the position of choke valve 10 of discharge duct 9) is adjusted by choke valve hydraulic control system 16, make exhaust ports in
Full open position；
B4) start motor 12, and adjusted axial flow compressor to setting speed by motor 12；
B5) the steam discharge valve door of high-pressure boiler 1 is adjusted to setting aperture；
B6 quick response magnetic valve 2) is connected, magnetic valve is quickly opened, and is powered off and closed after setting time section；
B7 axial location of the choke valve 10 along discharge duct 9) is adjusted by choke valve hydraulic control system 16, reduces row
Gas port circulation area, reduce the flow of axial flow compressor；
B8) using the static pressure of air inlet 4 of steady state pressure measuring system measurement admission line 5, using dynamic pressure measurement instrument
The transient state stagnation pressure of air inlet 4 and exhaust outlet is measured, and it is total using the transient state of fast thermocouple measurement air inlet 4 and exhaust outlet
Temperature, to obtain the instantaneous delivery of axial flow compressor, overall pressure tatio and efficiency；
B9) repeat step B7-B8, the flow of axial flow compressor is adjusted by choke valve 10, makes compressor operatlng polnt to steady
Determine Boundary Moving, until compressor instability, then last stable operating point is exactly stabilization of the compressor under current rotating speed
Boundary point；
B10) adjust quick response magnetic valve 2 connect, closes between time interval, repeat step B6-B8, obtain difference
The rotating speed line such as compressor of high-temperature steam respiratory time；
B11 the rotating speed of axial flow compressor) is adjusted by motor 12, and repeats B6-B9 steps, obtains different rotating speeds
Under the conditions of different high-temperature steam respiratory times compressor flow, overall pressure tatio and efficiency；
B12 the characteristic of compressor under uniform air inlet and different high-temperature steam respiratory time inlet air conditions) is contrasted, obtains high temperature
Influence of the steam respiratory time to Stability of Axial compressors.
Finally, the experiment that high-temperature steam spatial distribution form influences on Stability of Axial compressors specifically includes following step
Suddenly：
Quick response magnetic valve 2 is in power-off closed mode when C1) starting, and starts high-pressure boiler 1 and by high-pressure boiler 1
Steam pressure, temperature adjustment are to setting pressure, temperature, such as 1Mpa, 393K；
C2) to select segment angle be 30 degree, 45 degree, one kind in the high-temperature steam fan nozzles 13 of 60 degree and 90 degree is arranged on
On high-temperature steam conveyance conduit 3, and place it in the front of air inlet 4 of admission line 5；
C3 the position of choke valve 10 of discharge duct 9) is adjusted by choke valve hydraulic control system 16, make exhaust ports in
Full open position；
C4) start motor 12, and adjusted axial flow compressor to setting speed by motor 12；
C5) the steam discharge valve door of high-pressure boiler 1 is adjusted to setting aperture, and connects quick response magnetic valve 2, is led to
Cross high-temperature steam fan nozzle 13 and convey high-temperature steam into admission line 5；
C6 axial location of the choke valve 10 along discharge duct 9) is adjusted by choke valve hydraulic control system 16, reduces row
Gas port circulation area, reduce the flow of axial flow compressor；
C7) using the static pressure of air inlet 4 of steady state pressure measuring system measurement admission line 5, using dynamic pressure measurement instrument
The transient state stagnation pressure of air inlet 4 and exhaust outlet is measured, and it is total using the transient state of fast thermocouple measurement air inlet 4 and exhaust outlet
Temperature, to obtain the instantaneous delivery of axial flow compressor, overall pressure tatio and efficiency；
C8) repeat step C6-C7, the flow of axial flow compressor is adjusted by choke valve 10, makes compressor operatlng polnt to steady
Determine Boundary Moving, until compressor instability, last stable operating point is exactly stable side of the compressor under current rotating speed
Boundary's point；
C9 high-temperature steam fan nozzle 13, repeat step C5-C8) are changed, obtains different high-temperature steam spatial distribution forms
Under the rotating speed line such as compressor；
C10 the rotating speed of axial flow compressor) is adjusted by motor 12, and repeats C5-C9 steps, obtains different rotating speeds
Under the conditions of compressor flow, overall pressure tatio and efficiency under different high-temperature steam spatial distribution forms；
C11 the characteristic of compressor under uniform air inlet and different high-temperature steam spatial distribution form inlet air conditions) is contrasted, is obtained
Influence of the high-temperature steam spatial distribution form to Stability of Axial compressors.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (5)
1. the testing stand that a kind of high-temperature steam influences on Stability of Axial compressors, it is characterised in that including from front to back successively
High-temperature steam generator, admission line (5), axial flow compressor, discharge duct (9) and the motor (12) of setting；
Wherein, the high-temperature steam generator includes high-pressure boiler (1), high-temperature steam conveyance conduit (3) and high-temperature steam fan
Shape nozzle (13), the gas outlet of high-pressure boiler (1) pass through high-temperature steam conveyance conduit (3) and high-temperature steam fan nozzle (13) phase
Even, and by high-temperature steam fan nozzle (13) high-temperature steam, and high-temperature steam conveyance conduit are conveyed into admission line (5)
(3) quick response magnetic valve (2) is provided with；
The admission line (5) is connected by axial flow compressor with discharge duct (9), and axial flow compressor front end is provided with rectification
Cover (6)；The exhaust ports of the discharge duct (9) are provided with choke valve (10), and discharge duct (9) tail end is provided with choke valve
Hydraulic control system (16), axial direction of the choke valve (10) along discharge duct (9) is realized by choke valve hydraulic control system (16)
Position adjustment；The output shaft of the motor (12) is connected with the rotating shaft (11) of axial flow compressor, passes through motor (12)
Control the rotating speed of axial flow compressor.
2. the testing stand that a kind of high-temperature steam according to claim 1 influences on Stability of Axial compressors, its feature exist
In the section of the choke valve (10) is triangular in shape, is changed by adjusting axial location of the choke valve (10) along discharge duct (9)
Circulation area between variable throttle valve (10) and discharge duct (9) wall.
3. the testing stand that a kind of high-temperature steam according to claim 1 influences on Stability of Axial compressors, its feature exist
In the high-temperature steam fan nozzle (13) is removably connected with high-temperature steam conveyance conduit (3), and the fan-shaped spray of high-temperature steam
The segment angle of mouth (13) is respectively adopted 30 degree, 45 degree, 60 degree and 90 degree.
4. the testing stand that a kind of high-temperature steam according to claim 1 influences on Stability of Axial compressors, its feature exist
In the high-pressure boiler (1) uses electrical heating or fuel Heating, and it is 500-1000 kgs/hour that it, which discharges quantity of steam, and steam
Pressure is 0.1-1.0Mpa.
5. the test method that a kind of high-temperature steam influences on Stability of Axial compressors, it is characterised in that comprise the following steps：
Step 1：Preparation
Quick response magnetic valve (2) is in power-off closed mode during beginning, starts high-pressure boiler (1) and by high-pressure boiler (1)
Steam pressure, temperature adjustment to pressure, temperature is set, high-temperature steam fan nozzle (13) is placed on admission line (5)
In front of air inlet (4), and the choke valve of discharge duct (9) (10) position is adjusted by choke valve hydraulic control system (16),
Make exhaust ports in full open position；
Step 2：Variable Control
Start motor (12), the rotating speed for realizing axial flow compressor by motor (12) controls；Pass through high-pressure boiler (1)
High-temperature steam conveying capacity from steam discharge valve door aperture regulation high-temperature steam fan nozzle (13) to admission line (5), realize
The control of axial flow compressor high-temperature steam soakage；Pass through cut-offfing to realize axial flow compressor height for quick response magnetic valve (2)
The control of warm steam respiratory time, and realize that the interior high temperature of admission line (5) steams by the replacing of high-temperature steam fan nozzle (13)
The control of air space distribution form；
Step 3：Parameter measurement
Using air inlet (4) static pressure of steady state pressure measuring system measurement admission line (5), measured using dynamic pressure measurement instrument
The transient state stagnation pressure of air inlet (4) and exhaust outlet, and it is total using fast thermocouple to measure the transient state of air inlet (4) and exhaust outlet
Temperature, to obtain the instantaneous delivery of axial flow compressor, overall pressure tatio and efficiency；Adjusted and throttled by choke valve hydraulic control system (16)
Axial location of the valve (10) along discharge duct (9), the flow control of axial flow compressor is realized, makes axial flow compressor operating point to steady
Boundary Moving is determined, so as to obtain axial flow compressor stability boundaris；Measure uniform air inlet and high-temperature steam suction condition lower axle stream pressure
Mechanism of qi waits rotating speed line, so as to obtain influence of the high-temperature steam suction to Stability of Axial compressors.
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| CN111894745A (en) * | 2020-06-28 | 2020-11-06 | 东风汽车集团有限公司 | Gas quantity control method and device of exhaust gas turbocharging system |
| CN113753992A (en) * | 2021-09-07 | 2021-12-07 | 武伟 | High-efficiency vacuum sublimation evaporation cold and heat energy separation system and separation method and application thereof |
| CN114235263A (en) * | 2021-11-30 | 2022-03-25 | 中国航发沈阳发动机研究所 | Static pressure measuring device and method for measuring static pressure in aircraft engine flow passage |
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| CN113753992A (en) * | 2021-09-07 | 2021-12-07 | 武伟 | High-efficiency vacuum sublimation evaporation cold and heat energy separation system and separation method and application thereof |
| CN114235263A (en) * | 2021-11-30 | 2022-03-25 | 中国航发沈阳发动机研究所 | Static pressure measuring device and method for measuring static pressure in aircraft engine flow passage |
| CN114235263B (en) * | 2021-11-30 | 2024-03-19 | 中国航发沈阳发动机研究所 | Static pressure measuring device and method for measuring static pressure in flow passage of aero-engine |
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