CN213116405U - Detection apparatus for high cycle fatigue test of booster impeller and turbine - Google Patents
Detection apparatus for high cycle fatigue test of booster impeller and turbine Download PDFInfo
- Publication number
- CN213116405U CN213116405U CN202021839824.5U CN202021839824U CN213116405U CN 213116405 U CN213116405 U CN 213116405U CN 202021839824 U CN202021839824 U CN 202021839824U CN 213116405 U CN213116405 U CN 213116405U
- Authority
- CN
- China
- Prior art keywords
- supercharger
- gas
- impeller
- turbine
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Control Of Turbines (AREA)
- Testing Of Engines (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a detection device for high-cycle fatigue test of supercharger impeller and turbine, it includes an adjusting unit and a control unit, the adjusting unit is connected with the supercharger, through producing high temperature, high pressure gas drive supercharger rotation and through adjusting the supercharger rotational speed, changes in the small region near the impeller or turbine blade natural frequency scope of supercharger, makes it sweep the impeller or turbine blade natural frequency rotational speed scope of supercharger with higher frequency; the regulating unit is connected with a gas source, and the gas source inputs high-temperature and high-pressure gas generated after combustion to the regulating unit; the control unit is in control connection with the adjusting unit and is used for controlling the adjusting unit to work at a certain frequency and size. The utility model discloses can effectual detection booster anti high week fatigue ability, can provide higher test frequency for the anti high week fatigue test of booster, can accelerate the test with higher frequency, shorten test time, the energy saving reaches the reduction and discharges.
Description
Technical Field
The utility model relates to a mechanical anti high all fatigue test detects technical field, especially relates to a detection device of high all fatigue test of booster impeller and turbine.
Background
The exhaust gas turbocharging technology is an effective energy-saving emission-reducing and plateau power recovery technology, and is widely applied to the fields of commercial vehicles, passenger vehicles, engineering machinery, fans and the like. With the wide application of turbocharging technology, the reliability requirement of the turbocharger is higher and higher, and the high cycle fatigue resistance of the impeller and the turbine thereof is more and more concerned as an important index of the reliability of the turbocharger, and how to perform the high cycle fatigue test on the impeller and the turbine of the turbocharger is also a problem which needs to be solved urgently at present.
In order to solve the problems, no device and detection means specially used for carrying out high-cycle fatigue test on the supercharger impeller and the turbine wheel exist in China at present, and because each blade of the supercharger impeller or the turbine wheel has slight difference, the natural frequency of the supercharger impeller or the turbine wheel is not a single frequency but a small frequency range, the high-cycle fatigue test needs to be carried out, and the rotating speed of the supercharger is required to be frequently adjusted so that the impeller or the turbine wheel of the supercharger can sweep the natural frequency range of the blade. On a common supercharger examination test bench, due to the reasons of valve idle stroke, sensor reaction lag and the like, the operation is difficult, the difficulty of examination tests is greatly increased, and because the test working condition is slowly adjusted, the test frequency is low, and the acceleration test is not facilitated.
The device is used for carrying out high-cycle fatigue tests on the impeller and the turbine of the supercharger and simultaneously providing data support for the reliability of the supercharger in the use process. The device is used for detecting the high-cycle fatigue resistance of the supercharger by enabling an impeller or a turbine of the supercharger to run back and forth near the natural frequency rotating speed range of the blades of the supercharger, enabling the impeller or the turbine to frequently sweep through the natural frequency rotating speed range of the blades of the supercharger, carrying out an acceleration test, and accelerating the test process so as to judge whether the high-cycle fatigue resistance of the supercharger is qualified.
SUMMERY OF THE UTILITY MODEL
According to the technical problem that will solve, the utility model aims at providing a detection device of high week fatigue test of booster impeller and turbine, its rotational speed that can quick regulation booster changes at the small-range, makes it sweep its impeller or turbine blade natural frequency rotational speed scope with higher frequency to reach and carry out high week fatigue test's purpose with higher speed.
In order to realize the purpose of the utility model, the utility model discloses the technical scheme who adopts as follows:
a detection device for a high-cycle fatigue test of a supercharger impeller and a turbine comprises an adjusting unit and a control unit, wherein the adjusting unit is connected with a supercharger to be detected, and the rotating speed of the supercharger is changed in a small range near the natural frequency range of the impeller or the turbine blade of the supercharger by generating high-temperature and high-pressure gas to drive the supercharger to rotate and adjusting the rotating speed of the supercharger, so that the rotating speed of the supercharger sweeps through the natural frequency rotating speed range of the impeller or the turbine blade of the supercharger at a high frequency; the regulating unit is connected with a gas source, and the gas source inputs high-temperature and high-pressure gas generated after combustion to the regulating unit; the control unit is in control connection with the adjusting unit and is used for controlling the working frequency and the working stroke of the adjusting unit.
In a preferred embodiment of the present invention, the adjusting unit includes a gas adjusting chamber, an actuator, and a gas pressure adjusting valve; the gas inlet of the gas adjusting chamber is connected with the gas source, and the gas outlet of the gas adjusting chamber is connected with the supercharger; the air inlet end of the air pressure regulating valve is connected with a high-pressure air source, the air outlet end of the air pressure regulating valve is connected with the air inlet of the actuator, the actuator is controlled to act by inputting high-pressure air with different flow and pressure into the actuator, and the air pressure regulating valve is in control connection with the control unit; the gas regulating chamber is also provided with a waste gas outlet, the waste gas outlet is provided with a gas release valve, and the actuator controls the gas release valve to be opened and closed circularly at a certain frequency and opening degree so as to control the pressure of high-temperature and high-pressure gas in the gas regulating chamber and further control the rotating speed of the supercharger.
In a preferred embodiment of the present invention, the gas release valve is installed on a valve transmission shaft, the valve transmission shaft is installed on the gas adjustment chamber and connected to one end of a rocker arm, the other end of the rocker arm is connected to one end of a sleeve shaft, and the other end of the sleeve shaft is connected to the driving end of the actuator.
In a preferred embodiment of the present invention, the actuator is mounted on the gas conditioning chamber through an actuator bracket.
In a preferred embodiment of the present invention, the control unit is an industrial control computer.
Since the technical scheme as above is used, the utility model discloses can effectual detection booster anti high week fatigue ability, can provide higher test frequency for the anti high week fatigue test of booster, can accelerate the test with higher frequency, shorten test time, the energy saving reaches the reduction and discharges.
The utility model provides a high all fatigue test's of booster impeller and turbine detection device can provide higher test frequency, easily accelerates the experiment, and convenient operation is simple.
Drawings
Fig. 1 is a schematic diagram of the detection device for the high cycle fatigue test of the supercharger impeller and the turbine of the present invention.
Fig. 2 is a schematic structural diagram of a detecting device for a high cycle fatigue test of a supercharger impeller and a turbine according to an embodiment of the present invention.
Fig. 3 is a schematic diagram illustrating connection between an actuator and a rocker arm in the detection device for a high cycle fatigue test of a supercharger impeller and a turbine shown in fig. 2 according to an embodiment.
Detailed Description
The invention is further described below with reference to the accompanying drawings and the detailed description.
Referring to fig. 1, the detecting device for the high cycle fatigue test of the impeller and the turbine of the supercharger shown in the figure controls the rotating speed of the supercharger in the using process so as to achieve the purpose of detecting the high cycle fatigue resistance of the impeller and the turbine of the supercharger.
The device for detecting the high-cycle fatigue test of the supercharger impeller and the turbine comprises a regulating unit 100 and a control unit 200, wherein the regulating unit 200 is connected with a supercharger 300 to be detected, and the supercharger 300 is driven to rotate by generating high-temperature and high-pressure gas and the rotating speed of the supercharger 300 is regulated to change in a small range near the natural frequency range of the impeller or the turbine blade of the supercharger 300, so that the rotating speed of the supercharger sweeps through the natural frequency rotating speed range of the impeller or the turbine blade of the supercharger 300 at a higher frequency.
The adjusting unit 100 is connected with a gas source 400, and the gas source 400 inputs high-temperature and high-pressure gas generated after combustion to the adjusting unit 100.
The control unit 200 is in control connection with the adjusting unit 100, and is used for controlling the working frequency and the working stroke of the adjusting unit 100.
Referring to fig. 2 and 3, the regulating unit 100 includes a gas regulating chamber 110, an actuator 120, and a gas pressure regulating valve 130; the gas inlet of the gas adjusting chamber 110 is connected with a gas source 400, and the gas outlet is connected with a supercharger 300; the air inlet end of the air pressure regulating valve 130 is connected with a high pressure air source 500, the air outlet end of the air pressure regulating valve 130 is connected with the air inlet of the actuator 120 through an air hose 140, and the actuator 120 is controlled to act by inputting high pressure air with different flow rates and pressures into the actuator 120.
The gas regulating chamber 110 is further provided with a waste gas outlet 111, the waste gas outlet 111 is provided with a gas release valve 150, the gas release valve 150 is mounted on a valve transmission shaft 160, the valve transmission shaft 160 is axially arranged on the gas regulating chamber 110 and is connected with one end of a rocker arm 170, the other end of the rocker arm 170 is connected with one end of a sleeve shaft 180, and the other end of the sleeve shaft 180 is connected with the driving end of the actuator 120.
The actuator 120 is mounted to the gas conditioning chamber 110 by an actuator mount 190. The actuator 120 controls the gas release valve 150 to open and close cyclically at a certain frequency and opening degree, so as to control the pressure of the high-temperature and high-pressure gas in the gas regulating chamber 110, and further control the rotation speed of the supercharger 300.
The air pressure adjusting valve 130 is connected to the control unit 200, and the control unit 200 is an industrial control computer. The industrial control computer is primarily responsible for controlling the air pressure regulator 130 to cyclically vary the operating pressure supplied to the actuator 120 at a certain frequency.
The actuator 120 receives the working pressure which is transmitted by the air pressure regulating valve 130 and changes cyclically at a certain frequency, controls the air release valve 150 according to the frequency, and opens and closes cyclically at a certain opening degree, so that the pressure of the high-temperature and high-pressure gas in the gas regulating chamber 110 changes cyclically back and forth at the same frequency to change the preswirl pressure of the supercharger 300, thereby controlling the rotation speed of the supercharger 300 to change cyclically back and forth, and enabling the rotation speed of the supercharger 300 to sweep through the natural frequency rotation speed range of the impeller or turbine blade at a higher frequency.
The utility model discloses a booster impeller and turbine high cycle fatigue test's detection method, it at first calculates the impeller or turbine blade natural frequency rotational speed scope of waiting to detect booster 300, will wait to detect booster 300 rotational speed and adjust to the operating mode operation that is slightly higher than waiting to detect booster 300 impeller or turbine blade natural frequency rotational speed scope, and count it as the 1 st operating mode, open bleed valve 150 through the control unit 200 control executor 120, open to certain aperture when bleed valve 150, make to detect booster 300 and be less than the range operating mode operation of its impeller or turbine blade natural frequency rotational speed scope at the rotational speed slightly, mark as the 2 nd operating mode, later the control unit 200 control executor 120 opens and closes bleed valve 150 with certain frequency, make to detect booster 300 with same frequency, operate between the 1 st operating mode and the 2 nd operating mode, and sweep impeller or turbine blade natural frequency rotational speed scope, and carrying out a supercharger high-cycle fatigue test.
The specific operation steps are as follows:
the method comprises the following steps: the natural frequency and speed range of the vanes of the impeller or turbine of the supercharger 300 is calculated, and the speed of the supercharger 300 is adjusted to operate the supercharger 300 in a working condition that the speed is slightly higher than the natural frequency and speed range of the vanes or turbine blades of the supercharger.
Step two: the bleed valve 150 of the gas tuning chamber 110 is slowly opened to allow the supercharger to operate at a speed slightly below the natural frequency speed range of its impeller or turbine blades.
Step three: the control unit 200 is set to control the open and close of the air release valve 150 of the gas regulating chamber 110 at a certain frequency, so that the supercharger 300 can be switched back and forth between the two working conditions at the same frequency.
The utility model discloses a high all fatigue test's of booster impeller and turbine detection device, rotational speed variation range is little, and the operating mode switches rapidly, and easy operation is convenient, can detect the anti high all fatigue ability of booster.
Claims (5)
1. The detection device for the high-cycle fatigue test of the impeller and the turbine of the supercharger is characterized by comprising an adjusting unit and a control unit, wherein the adjusting unit is connected with the supercharger to be detected, the supercharger is driven to rotate by generating high-temperature and high-pressure gas and the rotating speed of the supercharger is adjusted to change in a small range near the natural frequency range of the impeller or the turbine blade of the supercharger, so that the rotating speed of the supercharger sweeps through the natural frequency rotating speed range of the impeller or the turbine blade of the supercharger at a higher frequency; the regulating unit is connected with a gas source, and the gas source inputs high-temperature and high-pressure gas generated after combustion to the regulating unit; the control unit is in control connection with the adjusting unit and is used for controlling the working frequency and the working stroke of the adjusting unit.
2. The device for detecting the high cycle fatigue test of the impeller and the turbine of the supercharger as claimed in claim 1, wherein the adjusting unit comprises a gas adjusting chamber, an actuator and a gas pressure adjusting valve; the gas inlet of the gas adjusting chamber is connected with the gas source, and the gas outlet of the gas adjusting chamber is connected with the supercharger; the air inlet end of the air pressure regulating valve is connected with a high-pressure air source, the air outlet end of the air pressure regulating valve is connected with the air inlet of the actuator, the actuator is controlled to act by inputting high-pressure air with different flow and pressure into the actuator, and the air pressure regulating valve is in control connection with the control unit; the gas regulating chamber is also provided with a waste gas outlet, the waste gas outlet is provided with a gas release valve, and the actuator controls the gas release valve to be opened and closed circularly at a certain frequency and opening degree so as to control the pressure of high-temperature and high-pressure gas in the gas regulating chamber and further control the rotating speed of the supercharger.
3. The device for detecting the high cycle fatigue test of the impeller and the turbine of the supercharger according to claim 2, wherein the relief valve is mounted on a valve transmission shaft, the valve transmission shaft is axially arranged on the gas regulating chamber and is connected with one end of a rocker arm, the other end of the rocker arm is connected with one end of a sleeve shaft, and the other end of the sleeve shaft is connected with the driving end of the actuator.
4. The apparatus of claim 2, wherein the actuator is mounted to the gas conditioning chamber by an actuator bracket.
5. The apparatus as claimed in claim 1, wherein the control unit is an industrial control computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021839824.5U CN213116405U (en) | 2020-08-28 | 2020-08-28 | Detection apparatus for high cycle fatigue test of booster impeller and turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021839824.5U CN213116405U (en) | 2020-08-28 | 2020-08-28 | Detection apparatus for high cycle fatigue test of booster impeller and turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213116405U true CN213116405U (en) | 2021-05-04 |
Family
ID=75657035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021839824.5U Active CN213116405U (en) | 2020-08-28 | 2020-08-28 | Detection apparatus for high cycle fatigue test of booster impeller and turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213116405U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049695A (en) * | 2020-08-28 | 2020-12-08 | 湖南天雁机械有限责任公司 | Detection device and method for high-cycle fatigue test of supercharger impeller and turbine |
-
2020
- 2020-08-28 CN CN202021839824.5U patent/CN213116405U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049695A (en) * | 2020-08-28 | 2020-12-08 | 湖南天雁机械有限责任公司 | Detection device and method for high-cycle fatigue test of supercharger impeller and turbine |
| CN112049695B (en) * | 2020-08-28 | 2024-08-09 | 湖南天雁机械有限责任公司 | Device and method for detecting high-cycle fatigue test of supercharger impeller and turbine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102705072B (en) | Method for calibrating a turbocharger | |
| CN101387236B (en) | Variable nozzle turbocharging control method and system | |
| CN103670680B (en) | The control device of exhaust gas by-pass valve of internal-combustion engine | |
| RU2018113492A (en) | Integrated power generation and compression unit and associated method | |
| CN110500295B (en) | Automatic parallel operation method of multi-unit parallel centrifugal compressor unit | |
| CN101535616A (en) | Control device for internal combustion engine with supercharger | |
| CN213116405U (en) | Detection apparatus for high cycle fatigue test of booster impeller and turbine | |
| CN104458238A (en) | Self-circulating type test bed for turbocharger high-low temperature cycling thermal shock testing | |
| WO2007106703A1 (en) | Control for variable geometry compressor | |
| EP2339148A2 (en) | Method and system for controlling a fuel flow to a turbomachine | |
| CN108956183A (en) | Expanding machine experimental rig and its test method | |
| CN111379728A (en) | Closed circulation centrifugal compressor characteristic test device | |
| EP2550440A1 (en) | Pre-installation turbocharger bench test | |
| JP2013083257A (en) | Method and device for adjusting end position of turbine for supercharger having variable turbine geometry | |
| CN112049695A (en) | Detection device and method for high-cycle fatigue test of supercharger impeller and turbine | |
| CN210003339U (en) | expansion generator combined adjusting system | |
| CN111579246A (en) | Supercharger test bench combustion chamber air inflow proportion adjusting device and method | |
| JPH11229898A (en) | Start-up control device of gas turbine | |
| CN208765975U (en) | Expanding machine experimental rig | |
| CN105020006B (en) | A kind of the compressed air auxiliary device and control method of boosting internal combustion engine | |
| CN204851424U (en) | Compressed air auxiliary device of pressure boost internal -combustion engine | |
| GB2337792A (en) | I.c. engine turbocharger with compressor by-pass | |
| CN105424348A (en) | Adaptive tensioning supercharger test device | |
| CN221053947U (en) | High-pressure air driving device for turbine pump experiment | |
| CN212458882U (en) | Engine test bed waste gas utilization system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |