CN102507202B - Turbocharger self-circulation low-cycle fatigue testing device and test method - Google Patents
Turbocharger self-circulation low-cycle fatigue testing device and test method Download PDFInfo
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- CN102507202B CN102507202B CN201110307881.8A CN201110307881A CN102507202B CN 102507202 B CN102507202 B CN 102507202B CN 201110307881 A CN201110307881 A CN 201110307881A CN 102507202 B CN102507202 B CN 102507202B
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- 238000009673 low cycle fatigue testing Methods 0.000 title claims abstract description 13
- 238000010998 test method Methods 0.000 title abstract description 8
- 238000002485 combustion reaction Methods 0.000 claims abstract description 11
- 239000002737 fuel gas Substances 0.000 claims abstract description 9
- 239000000446 fuel Substances 0.000 claims description 26
- 239000002184 metal Substances 0.000 claims description 18
- 239000003638 chemical reducing agent Substances 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 12
- 239000010687 lubricating oil Substances 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 7
- 239000003921 oil Substances 0.000 claims description 6
- 239000000295 fuel oil Substances 0.000 claims description 3
- 230000002045 lasting effect Effects 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000000889 atomisation Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 238000002156 mixing Methods 0.000 claims 1
- 238000003556 assay Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000009661 fatigue test Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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Abstract
A kind of turbocharger self-circulation low-cycle fatigue testing device and test method, it includes combustion system, high temperature shift valve assembly, oil supply system and air inlet system and exhaust system, and said system is connected by pipe.A number turbocharger and No. two turbocharger use tandem arrangement, on the one hand it is possible to prevent turbocharger air compressor inlet air flow interference-free, on the other hand turbocharger whirlpool end exhaustor can be made to keep vertical with turbocharger exhaust flange face, thus ensure smooth in exhaust, final two strands of exhaust streams are combined into one and pass through exhaust main, air exhauster discharge.Assay device can be under the impact of 700 DEG C of high-temperature fuel gas, direction of rotation is periodically changed to regulate the rotating speed of supercharger through high temperature shift valve, and then the throughput entering combustor is adjusted according to compressed air pressure size by compressor delivery pressure control valve, solve superchargers and low cycle fatigue testing stand and realize a difficult problem for self-loopa, it is achieved turbocharger self-circulation fatigue experimental is tested.
Description
Technical field
The present invention relates to turbo-charger technical field, particularly a kind of vehicle turbocharger self-circulation fatigue experimental examination
Experiment device and test method.
Background technology
Improving constantly the enhancing day by day with people's environmental consciousness along with automobile emissions standards, supercharging technology has become as and carries
One of most effective measure of high automobile engine dynamic property, economy and reduction exhaust emission.This technology is again plateau simultaneously
The important means that area engine power is recovered, makes electromotor adapt to the service requirement of different altitude height.Turbocharger
Extensively application make the reliability of turbocharger seem to become more and more important, as the compressor impeller of turbocharger core part
With turbine, particularly high speed, high pressure ratio impeller, low-cycle fatigue failure is its dominant failure mode.The conditions that are put to the test etc. limit, mesh
Front turbocharger manufacturer is also in development to Vehicle Turbocharger Centrifugal Compressor low-cycle fatigue experiment.
Chinese patent CN 1793819A discloses a kind of self-circulation fatigue experimental bench for turbocharger, but according to this
Self-loopa framework described by patent is it can be seen that wherein lower-speed state ought be in temporarily and at another supercharger by a supercharger
When fast state, high-speed boosting device pressure at expulsion is higher, and compressed air enters combustor by pipeline, and meanwhile low speed increases
Depressor pressure at expulsion is relatively low, is affected by high-speed boosting device high pressure at expulsion, and its aerofluxus is obstructed, and causes arbitrary supercharger being in
During lower-speed state, compressed air all cannot realize self-loopa, even makes compressor surge occur due to compressed air blocking, by
This, introduce other destructive factor in low cycle fatigue test to impeller, this purpose damaged with monitoring impeller low-cycle fatigue
Disagree.
Test it addition, existing low cycle fatigue test device Chang Yici installs two superchargers simultaneously, by regulation height
The aperture of temperature switching valve makes wherein supercharger gas inlet amount less and is in lower-speed state temporarily, meanwhile, and remaining
Major part high-temperature fuel gas enters another supercharger, and is at fast state, and so forth.Supercharger is from being changed at a high speed
Low speed, being changed into the whole change-over period at a high speed the most again is generally 10-25s.Due to will be in the increasing of two speed alternate runs
Realizing self-loopa between depressor, self-loopa difficulty is bigger so that the test of existing superchargers and low cycle fatigue all uses hot blow mode,
Experimentation cost is greatly improved.
Summary of the invention
It is an object of the invention to overcome the above-mentioned deficiency of prior art to provide a kind of turbocharger self-loopa low week tired
Labor assay device and test method.
The technical scheme is that a kind of turbocharger self-circulation low-cycle fatigue testing device, it includes burning system
System, high temperature shift valve assembly, oil supply system and air inlet system and exhaust system.
Described combustion system includes combustor, conducting rod and fuel nozzle, uses electromotor burner, utilizes conduction
Bar ignites the atomized fuel mixed with external compressed air, produces high-temperature high-pressure fuel gas, thus promotes turbocharger to rotate.
Described high temperature shift valve assembly includes Horizontal speed-reducer, motor base assembly, high temperature shift valve, valve seat, manually
Gate valve and cooling air intake duct.High temperature shift valve is arranged on valve seat, mainly uses heat-resistance stainless steel inside high temperature shift valve
Make, be resistant to 700 DEG C of high temperature；Horizontal speed-reducer is arranged on motor base assembly, driven by motor on motor base assembly crouch
Formula reductor, is adjusted controlling high temperature shift valve, and then regulation turbine by the additional travel control switch of Horizontal speed-reducer
The rotating speed of supercharger and rotating；Owing to the ball bearing thermal stress resistance on high temperature shift valve assembly is limited in one's ability, shaft bearing
Place introduces compressed air by external cooling air intake duct and cools down, and hand sluice valve is located at external cooling air intake duct
On, the acoustic filter on high temperature shift valve of the gas after cooling ball bearing is discharged, to reduce aerodynamic noise.
Described oil supply system includes lubricating oil system and fuel system, and fuel system is provided for fuel nozzle by pipeline
Fuel, the lubricating oil of lubricating oil system is divided into two strands by three-way valve, the bearing body of a respectively turbocharger and No. two
The bearing body of turbocharger provides lubrication.
Described air inlet system and exhaust system include No. two turbocharger whirlpool end exhaustors, a turbocharger whirlpool end aerofluxus
Pipe, a turbocharger circle become square joint assembly, turbocharger air inlet pipe, exhaust main, a band metal bellow
A turbocharger pressure side exhaustor, turbocharger pressure control valve, compressed air inlet valve, No. two turbines increase
Depressor circle becomes square joint assembly, No. two turbocharger pressure control valves, No. two turbocharger air inlet pipe, turbochargings
Device, No. two turbocharger, No. two turbocharger pressure side exhaustors of band metal bellow and compressed air inlet pipe.
Exhaust flange and one end of a turbocharger whirlpool end exhaustor in a number turbocharger connect, a whirlpool
The other end of wheel supercharger whirlpool end exhaustor is connected with exhaust main.The inlet end of a number turbocharger is increased by a turbine
Depressor circle becomes square joint assembly and a turbocharger air inlet pipe connects, and the other end of a turbocharger air inlet pipe is with high
Temperature switching valve connects.The air end of booster of a number turbocharger and a turbocharger pressure side exhaustor of band metal bellow
Connecting, a turbocharger pressure side exhaustor of band metal bellow is provided with a turbocharger pressure control valve.
Exhaust flange and one end of No. two turbocharger whirlpool end exhaustors in No. two turbocharger connect, No. two whirlpools
The other end of wheel supercharger whirlpool end exhaustor is connected with exhaust main.The inlet end of No. two turbocharger is increased by No. two turbines
Depressor circle becomes square joint assembly and No. two turbocharger air inlet pipe connect, and the other end of No. two turbocharger air inlet pipe is with high
Temperature switching valve connects.The air end of booster of No. two turbocharger and No. two turbocharger pressure side exhaustors of band metal bellow
Connecting, No. two turbocharger pressure side exhaustors of band metal bellow are provided with No. two turbocharger pressure control valves.
One end of combustor is connected with high temperature shift valve by flange, and the other end of combustor is with compressed air inlet pipe even
Connecing, compressed air inlet pipe is provided with fuel nozzle and compressed air inlet valve, compressed air inlet pipe by pipeline respectively with
Number turbocharger pressure control valve, No. two turbocharger pressure control valves connect.
The further technical scheme of the present invention is: a turbocharger and No. two turbocharger use tandem
Arrangement, is so on the one hand possible to prevent turbocharger air compressor inlet air flow interference-free；On the other hand No. one can be made
Turbocharger whirlpool end exhaustor and a turbocharger exhaust flange face keep vertical, No. two turbocharger whirlpool end aerofluxuss
Managing and keep vertical with No. two turbocharger exhaust flange faces, thus ensure smooth in exhaust, final two strands of exhaust streams are combined into one
By exhaust main, air exhauster discharge.
The present invention further technical scheme is: two turbocharger supercharged air each flow through the length of pipeline should
Roughly equal, to ensure lasting, the stable operation of self-loopa.
Present invention also offers a kind of turbocharger self-circulation fatigue experimental test method, its concrete test method is such as
Under:
Compressed air compressed air inlet valve enters combustor and blows a turbocharger and No. two turbocharger
Rotate (also known as cold blowing), and fuel oil delivers to fuel nozzle atomization from fuel system, uniformly mixes with compressed air, through conducting rod point
Combustion burning in a combustion chamber produces high-temperature fuel gas and enters high temperature shift valve, and Horizontal speed-reducer then drives high temperature shift valve to rotate, logical
The aperture crossing high temperature switching valve periodically to control to enter a turbocharger and the gas quantity of No. two turbocharger.
When a turbocharger is in fast state, No. two turbocharger are then in lower-speed state, a turbine
Charger boost air delivers to a turbocharger pressure control valve through a turbocharger pressure side exhaustor, due to No. one
Turbocharger is at a high speed, and after supercharging air, pressure is relatively big, then push a turbocharger pressure control valve open and enter burning
Room, and enter air without a turbocharger pressure side exhaustor；Meanwhile, No. two turbocharger supercharged air are through two
Number turbocharger pressure side exhaustor delivers to No. two turbocharger pressure control valves, owing to pressure is relatively low, it is impossible to promote No. two
Turbocharger pressure control valve enters combustor, and sends into air through No. two turbocharger pressure side exhaustors.
When No. two turbocharger are in fast state, a turbocharger is then in lower-speed state, No. two turbines
Charger boost air delivers to No. two turbocharger pressure control valves through No. two turbocharger pressure side exhaustors, due to No. two
Turbocharger is at a high speed, and after supercharging air, pressure is relatively big, then push No. two turbocharger pressure control valves open and enter burning
Room, and enter air without No. two turbocharger pressure side exhaustors；Meanwhile, a turbocharger supercharged air is through one
Number turbocharger pressure side exhaustor delivers to a turbocharger pressure control valve, owing to pressure is relatively low, it is impossible to promote No. one
Turbocharger pressure control valve enters combustor, and sends into air through a turbocharger pressure side exhaustor.
When a turbocharger is in fast state, No. two turbocharger are in lower-speed state, when No. two turbines
When supercharger is in fast state, a turbocharger is in lower-speed state, thus realizes the self-loopa of turbocharger, its
Self-loopa is to be adjusted controlling high temperature shift valve by the additional travel control switch of Horizontal speed-reducer, and then regulation turbine increases
The rotating speed of depressor and rotating, the final result of regulation is rotating speed is another supercharger speed the 35 of a wherein supercharger
～45%, vice versa.
The present invention compared with prior art has a characteristic that
The turbocharger self-circulation low-cycle fatigue testing device that the present invention provides can be in the impact of 700 DEG C of high-temperature fuel gas
Under, periodically change direction of rotation to regulate the rotating speed of supercharger through high temperature shift valve, and then pass through compressor delivery pressure
The throughput entering combustor is adjusted by control valve according to compressed air pressure size, solves superchargers and low cycle fatigue examination
Test platform and realize a difficult problem for self-loopa, it is achieved turbocharger self-circulation fatigue experimental is tested.
Below in conjunction with the drawings and specific embodiments, the detailed construction of the present invention is further described.
Accompanying drawing explanation
Accompanying drawing is the structural representation of the present invention.
Detailed description of the invention
A kind of turbocharger self-circulation low-cycle fatigue testing device, it includes combustion system, high temperature shift valve assembly, confession
Oil system and air inlet system and exhaust system.
Described combustion system includes combustor 14, conducting rod 15 and fuel nozzle 16, uses electromotor burner, profit
Ignite the atomized fuel mixed with external compressed air with conducting rod 15, produce high-temperature high-pressure fuel gas, thus promote turbocharging
Device rotates.
Described high temperature shift valve assembly includes Horizontal speed-reducer 7, motor base assembly 8, high temperature shift valve 10, valve seat
11, hand sluice valve 22 and cooling air intake duct 23.High temperature shift valve 10 is arranged on valve seat 11, and high temperature shift valve 10 is internal main
Heat-resistance stainless steel to be used makes, and is resistant to 700 DEG C of high temperature；Horizontal speed-reducer 7 is arranged on motor base assembly 8, by motor bottom
Driven by motor Horizontal speed-reducer 7 on seat assembly 8, is adjusted controlling height by the additional travel control switch of Horizontal speed-reducer 7
Temperature switching valve 10, and then regulate rotating speed and the rotating of turbocharger；Owing to the ball bearing on high temperature shift valve assembly resists
Thermal stress is limited in one's ability, introduces compressed air by external cooling air intake duct 23 and cool down at shaft bearing, manual brake
Valve 22 is located on external cooling air intake duct 23, and the gas after cooling ball bearing is discharged through high temperature shift valve 10, to reduce
Aerodynamic noise.
Described oil supply system includes lubricating oil system 1 and fuel system 2, and fuel system 2 is fuel nozzle by pipeline
16 provide fuel, and the lubricating oil of lubricating oil system 1 is divided into two strands by three-way valve, the respectively bearing of a turbocharger 24
The bearing body of body and No. two turbocharger 25 provides lubrication.
Described air inlet system and exhaust system include 3, the turbocharger whirlpool end aerofluxus of No. two turbocharger whirlpool end exhaustors
4, turbocharger circle of pipe becomes square joint assembly 5, turbocharger air inlet pipe 6, exhaust main 9, a band wavy metal
A turbocharger pressure side exhaustor 12, turbocharger pressure control valve 17, compressed air inlet valve for flexible pipe 13
18, No. two turbocharger circle change square joint assembly 20, No. two turbocharger of 19, No. two turbocharger pressure control valves are entered
Trachea 24, No. two turbocharger 25 of 21, turbocharger, No. two turbocharger pressure sides of band metal bellow 26
Exhaustor 27 and compressed air inlet pipe 28.
Exhaust flange and one end of a turbocharger whirlpool end exhaustor 4 in a number turbocharger 24 connect, and one
The other end of number turbocharger whirlpool end exhaustor 4 is connected with exhaust main 9.The inlet end of a number turbocharger 24 passes through one
Number turbocharger circle becomes square joint assembly 5 and is connected with a turbocharger air inlet pipe 6, a turbocharger air inlet pipe 6
The other end be connected with high temperature shift valve 10.The air end of booster of a number turbocharger 24 and a whirlpool of band metal bellow 13
Wheel supercharger pressure side exhaustor 12 connects, and a turbocharger pressure side exhaustor 12 of band metal bellow 13 is provided with one
Number turbocharger pressure control valve 17.
Exhaust flange and one end of No. two turbocharger whirlpool end exhaustors 3 in No. two turbocharger 25 connect, and two
The other end of number turbocharger whirlpool end exhaustor 3 is connected with exhaust main 9.The inlet end of No. two turbocharger 25 passes through two
Number turbocharger circle becomes square joint assembly 19 and is connected with No. two turbocharger air inlet pipe 21, No. two turbocharger air inlet pipe
The other end of 21 is connected with high temperature shift valve 10.No. two of the air end of booster of No. two turbocharger 25 and band metal bellow 26
Turbocharger pressure side exhaustor 27 connects, and No. two turbocharger pressure side exhaustors 27 of band metal bellow 26 are provided with
No. two turbocharger pressure control valves 20.
One end of combustor 14 is connected with high temperature shift valve 10 by flange, and the other end of combustor 14 enters with compressed air
Trachea 28 connects, and compressed air inlet pipe 28 is provided with fuel nozzle 16 and compressed air inlet valve 18, compressed air inlet pipe
28 are connected with 17, No. two turbocharger pressure control valves 20 of a turbocharger pressure control valve respectively by pipeline.
In the present embodiment, a turbocharger 24 and No. two turbocharger 25 use tandem layout side
Formula, is so on the one hand possible to prevent turbocharger air compressor inlet air flow interference-free；On the other hand a turbine can be made to increase
Depressor whirlpool end exhaustor 4 keeps vertical with turbocharger exhaust flange face, No. two turbocharger whirlpool end exhaustors 3 and
No. two turbocharger exhaust flange faces keep vertical, thus ensure smooth in exhaust, and final two strands of exhaust streams are combined into one to be passed through
Exhaust main 9, is discharged by air exhauster.Two turbocharger supercharged air each flow through the length of pipeline should be roughly equal, with
Ensure lasting, the stable operation of self-loopa.
The present embodiment additionally provides the above-mentioned turbocharger self-circulation low-cycle fatigue testing device of a kind of employing and increases turbine
Depressor carries out the method for self-circulation fatigue experimental test, and its concrete test method is as follows:
Compressed air compressed air inlet valve 18 enters combustor 14 and blows a turbocharger 24 and No. two turbines
Supercharger 25 rotates (also known as cold blowing), and fuel oil is delivered to fuel nozzle 16 from fuel system 2 and is atomized, and uniformly mixes with compressed air
Closing, light burning in combustor 14 through conducting rod 15 and produce high-temperature fuel gas entrance high temperature shift valve 10, Horizontal speed-reducer 7 then carries
Dynamic high temperature shift valve 10 rotates, and periodically to control to enter a turbocharger 24 and two by the aperture of high temperature shift valve 10
The gas quantity of number turbocharger 25.
When a turbocharger 24 is in fast state, No. two turbocharger 25 are then in lower-speed state, No. one
Turbocharger 24 pressurized air delivers to a turbocharger pressure control valve through a turbocharger pressure side exhaustor 12
17, owing to a turbocharger 24 is at a high speed, after supercharging air, pressure is relatively big, then push a turbocharger pressure control open
Valve 17 processed enters combustor 14, and enters air without a turbocharger pressure side aerofluxus bank of tubes 12；Meanwhile, No. two turbines
Supercharger 25 pressurized air delivers to No. two turbocharger pressure control valves 20 through No. two turbocharger pressure side exhaustors 27, by
Relatively low in pressure, it is impossible to promote No. two turbocharger pressure control valves 20 to enter combustor 14, and through No. two turbocharger
Air sent into by pressure side exhaustor 27.
When No. two turbocharger 25 are in fast state, a turbocharger 24 is then in lower-speed state, No. two
Turbocharger 25 pressurized air delivers to No. two turbocharger pressure control valves through No. two turbocharger pressure side exhaustors 27
20, owing to No. two turbocharger 25 are at a high speed, after supercharging air, pressure is relatively big, then push No. two turbocharger pressure controls open
Valve 20 processed enters combustor 14, and enters air without No. two turbocharger pressure side exhaustors 27；Meanwhile, a turbine
Supercharger 24 pressurized air delivers to a turbocharger pressure control valve 17 through a turbocharger pressure side exhaustor 12, by
Relatively low in pressure, it is impossible to promote a turbocharger pressure control valve 17 to enter combustor 14, and through a turbocharger
Air sent into by pressure side exhaustor 17.
When a turbocharger 24 is in fast state, No. two turbocharger 25 are in lower-speed state, when No. two
When turbocharger 25 is in fast state, a turbocharger 24 is in lower-speed state, thus realizes turbocharger
Self-loopa, its self-loopa is to be adjusted controlling high temperature shift valve 10 by the additional travel control switch of Horizontal speed-reducer 7, enters
And regulate rotating speed and the rotating of turbocharger, the final result of regulation be the rotating speed of a wherein supercharger be another increase
The 35～45% of depressor rotating speed, vice versa.
Claims (5)
1. a turbocharger self-circulation low-cycle fatigue testing device, is characterized in that: it includes combustion system, high temperature shift valve
Assembly, oil supply system and air inlet system and exhaust system；
Described combustion system includes combustor, conducting rod and fuel nozzle, uses electromotor combustor, utilizes conducting rod to draw
The atomized fuel that combustion mixes with external compressed air, produces high-temperature high-pressure fuel gas, thus promotes turbocharger to rotate；
Described high temperature shift valve assembly includes Horizontal speed-reducer, motor base assembly, high temperature shift valve, valve seat, hand sluice valve
With cooling air intake duct；High temperature shift valve is arranged on valve seat, and Horizontal speed-reducer is arranged on motor base assembly, by motor
Driven by motor Horizontal speed-reducer in base assembly, is adjusted controlling high temperature by the additional travel control switch of Horizontal speed-reducer
Switching valve, and then regulate rotating speed and the rotating of turbocharger；Owing to the ball bearing heat resistanceheat resistant on high temperature shift valve assembly should
Power is limited in one's ability, introduces compressed air by external cooling air intake duct and cool down at shaft bearing, and hand sluice valve is located at
On external cooling air intake duct, the acoustic filter on high temperature shift valve of the gas after cooling ball bearing is discharged, to reduce gas
Moving noise；
Described oil supply system includes lubricating oil system and fuel system, and fuel system provides combustion by pipeline for fuel nozzle
Material, the lubricating oil of lubricating oil system is divided into two strands by three-way valve, the bearing body of a respectively turbocharger and No. two whirlpools
The bearing body of wheel supercharger provides lubrication；
Described air inlet system and exhaust system include No. two turbocharger whirlpool end exhaustors, turbocharger whirlpool end exhaustor, one
Number turbocharger circle become square joint assembly, turbocharger air inlet pipe, exhaust main, No. one of band metal bellow
Turbocharger pressure side exhaustor, turbocharger pressure control valve, compressed air inlet valve, No. two turbocharger circles
Become square joint assembly, No. two turbocharger pressure control valves, No. two turbocharger air inlet pipe, turbocharger, two
Number turbocharger, No. two turbocharger pressure side exhaustors of band metal bellow and compressed air inlet pipe；
Exhaust flange and one end of a turbocharger whirlpool end exhaustor in a number turbocharger connect, and a turbine increases
The other end of depressor whirlpool end exhaustor is connected with exhaust main；The inlet end of a number turbocharger passes through a turbocharger
Circle becomes square joint assembly and a turbocharger air inlet pipe connects, and the other end of a turbocharger air inlet pipe turns with high temperature
Change valve to connect；The air end of booster of a number turbocharger connects with a turbocharger pressure side exhaustor of band metal bellow
Connecing, a turbocharger pressure side exhaustor of band metal bellow is provided with a turbocharger pressure control valve；
Exhaust flange and one end of No. two turbocharger whirlpool end exhaustors in No. two turbocharger connect, and No. two turbines increase
The other end of depressor whirlpool end exhaustor is connected with exhaust main；The inlet end of No. two turbocharger passes through No. two turbocharger
Circle becomes square joint assembly and No. two turbocharger air inlet pipe connect, and the other end of No. two turbocharger air inlet pipe turns with high temperature
Change valve to connect；The air end of booster of No. two turbocharger connects with No. two turbocharger pressure side exhaustors of band metal bellow
Connecing, No. two turbocharger pressure side exhaustors of band metal bellow are provided with No. two turbocharger pressure control valves；
One end of combustor is connected with high temperature shift valve by flange, and the other end of combustor is connected with compressed air inlet pipe,
Compressed air inlet pipe is provided with fuel nozzle and compressed air inlet valve, compressed air inlet pipe by pipeline respectively with No. one
Turbocharger pressure control valve, No. two turbocharger pressure control valves connect.
A kind of turbocharger self-circulation low-cycle fatigue testing device the most according to claim 1, is characterized in that: a whirlpool
Wheel supercharger and No. two turbocharger use tandem arrangement, are so on the one hand possible to prevent turbocharger pressure
Mechanism of qi inlet air flow is interference-free；On the other hand a turbocharger whirlpool end exhaustor and a turbocharger exhaust can be made
Flange face keeps vertical, and No. two turbocharger whirlpool end exhaustors keep vertical with No. two turbocharger exhaust flange faces, from
And ensureing smooth in exhaust, final two strands of exhaust streams are combined into one and pass through exhaust main, air exhauster discharge.
A kind of turbocharger self-circulation low-cycle fatigue testing device the most according to claim 1 and 2, is characterized in that: two
The turbocharger supercharged air of platform each flows through the length of pipeline should be roughly equal, to ensure lasting, the stable operation of self-loopa.
4. one kind uses turbocharger self-circulation low-cycle fatigue testing device as claimed in claim 1 to enter turbocharger
The method of row self-circulation fatigue experimental test, is characterized in that: compressed air compressed air inlet valve enters combustor and blows one
Number turbocharger and No. two turbocharger rotate, and fuel oil delivers to fuel nozzle atomization from fuel system, with compressed air
Uniformly mixing, lights burning in a combustion chamber through conducting rod and produces high-temperature fuel gas entrance high temperature shift valve, and Horizontal speed-reducer then carries
Dynamic high temperature shift valve rotates, and periodically to control to enter a turbocharger and No. two turbines by the aperture of high temperature shift valve
The gas quantity of supercharger；
When a turbocharger is in fast state, No. two turbocharger are then in lower-speed state, a turbocharging
Device pressurized air delivers to a turbocharger pressure control valve through a turbocharger pressure side exhaustor, due to a turbine
Supercharger is at a high speed, and after supercharging air, pressure is relatively big, then push a turbocharger pressure control valve open and enter combustor, and
Air is entered without a turbocharger pressure side exhaustor；Meanwhile, No. two turbocharger supercharged air are through No. two whirlpools
Wheel supercharger pressure side exhaustor delivers to No. two turbocharger pressure control valves, owing to pressure is relatively low, it is impossible to promote No. two turbines
Supercharger pressure control valve enters combustor, and sends into air through No. two turbocharger pressure side exhaustors；
When No. two turbocharger are in fast state, a turbocharger is then in lower-speed state, No. two turbochargings
Device pressurized air delivers to No. two turbocharger pressure control valves through No. two turbocharger pressure side exhaustors, due to No. two turbines
Supercharger is at a high speed, and after supercharging air, pressure is relatively big, then push No. two turbocharger pressure control valves open and enter combustor, and
Air is entered without No. two turbocharger pressure side exhaustors；Meanwhile, a turbocharger supercharged air is through a whirlpool
Wheel supercharger pressure side exhaustor delivers to a turbocharger pressure control valve, owing to pressure is relatively low, it is impossible to promote a turbine
Supercharger pressure control valve enters combustor, and sends into air through a turbocharger pressure side exhaustor.
A kind of employing turbocharger self-circulation low-cycle fatigue testing device the most according to claim 4 is to turbocharger
The method carrying out self-circulation fatigue experimental test, is characterized in that: when a turbocharger is in fast state, No. two turbines
Supercharger is in lower-speed state, and when No. two turbocharger are in fast state, a turbocharger is in lower-speed state,
Thus realizing the self-loopa of turbocharger, its self-loopa is to be adjusted by the additional travel control switch of Horizontal speed-reducer
Control high temperature shift valve, and then regulate rotating speed and the rotating of turbocharger, the final result of regulation is a wherein supercharging
The rotating speed of device is the 35～45% of another supercharger speed, and vice versa.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110307881.8A CN102507202B (en) | 2011-10-12 | 2011-10-12 | Turbocharger self-circulation low-cycle fatigue testing device and test method |
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| CN201110307881.8A CN102507202B (en) | 2011-10-12 | 2011-10-12 | Turbocharger self-circulation low-cycle fatigue testing device and test method |
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| CN102507202A CN102507202A (en) | 2012-06-20 |
| CN102507202B true CN102507202B (en) | 2016-09-14 |
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| CN104155114B (en) * | 2014-08-07 | 2016-08-24 | 哈尔滨工程大学 | Multi-functional combined supercharging pilot system |
| CN104359680B (en) * | 2014-12-08 | 2017-06-06 | 湖南天雁机械有限责任公司 | Variable-area turbocharger flow detection and the method and device demarcated |
| CN104458238B (en) * | 2014-12-15 | 2017-05-17 | 北京理工大学 | Self-circulating type test bed for turbocharger high-low temperature cycling thermal shock testing |
| CN105090952A (en) * | 2015-09-08 | 2015-11-25 | 上海为默机械科技有限公司 | High-precision combustor for fatigue testing of exhaust system |
| CN105203330B (en) * | 2015-09-11 | 2019-02-19 | 北京理工大学 | A device for start-stop shock test of turbocharger |
| CN105043779B (en) * | 2015-09-11 | 2018-07-27 | 北京理工大学 | A kind of turbocharger start/stop impact experimental rig |
| CN105203288B (en) * | 2015-09-11 | 2018-07-27 | 北京理工大学 | A kind of turbocharger start/stop impact testing stand |
| CN105115720B (en) * | 2015-10-12 | 2018-03-02 | 凤城市时代龙增压器制造有限公司 | Bi-turbo property test platform with gases at high pressure part flow arrangement |
| CN106644536A (en) * | 2016-09-14 | 2017-05-10 | 北京理工大学 | Tank armored vehicle air filter and supercharger performance matching test system |
| CN106706327A (en) * | 2017-01-19 | 2017-05-24 | 浙江大学 | Experimental research device for engine combustion process |
| CN110455509B (en) * | 2019-08-07 | 2021-05-11 | 中国北方发动机研究所(天津) | Turbocharger test bench |
| CN111610032B (en) * | 2020-05-06 | 2021-07-16 | 湖南汉能科技有限公司 | Pipeline and valve system of aero-engine combustion chamber test bed |
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| US6209390B1 (en) * | 1999-05-14 | 2001-04-03 | Larue Gerald Duane | Turbocharger fatigue life monitor |
| US7231291B2 (en) * | 2005-09-15 | 2007-06-12 | Cummins, Inc. | Apparatus, system, and method for providing combined sensor and estimated feedback |
| CN1793819A (en) * | 2005-12-30 | 2006-06-28 | 北京理工大学 | Self-circulation fatigue experimental bench for turbocharger |
| US7757549B2 (en) * | 2008-02-21 | 2010-07-20 | Cummins Ip, Inc | Apparatus, system, and method for predictive control of a turbocharger |
| CN101793619A (en) * | 2010-03-12 | 2010-08-04 | 北京理工大学 | Test bench with double combustion chambers, double superchargers and low cycle fatigue based on self-circulation mode |
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