CN113654787A - Supercharger working state inspection test method - Google Patents
Supercharger working state inspection test method Download PDFInfo
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- CN113654787A CN113654787A CN202111095060.2A CN202111095060A CN113654787A CN 113654787 A CN113654787 A CN 113654787A CN 202111095060 A CN202111095060 A CN 202111095060A CN 113654787 A CN113654787 A CN 113654787A
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- 238000010998 test method Methods 0.000 title claims abstract description 15
- 238000007689 inspection Methods 0.000 title claims description 14
- 238000012360 testing method Methods 0.000 claims abstract description 40
- 239000010687 lubricating oil Substances 0.000 claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 238000005520 cutting process Methods 0.000 claims abstract description 4
- 238000002485 combustion reaction Methods 0.000 claims description 18
- 239000000446 fuel Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 17
- 239000003921 oil Substances 0.000 claims description 16
- 239000000295 fuel oil Substances 0.000 claims description 6
- 238000002474 experimental method Methods 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000010926 purge Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 2
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 12
- 239000002283 diesel fuel Substances 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000003584 silencer Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Supercharger (AREA)
Abstract
The patent relates to the technical field of supercharger detection, in particular to a supercharger working state detection test method, which adopts a supercharger test bed to test and comprises the following steps: s1: preparing in an early stage; s2: testing the pipeline at a low speed; s3: adjusting the turbine inlet pressure and igniting; s4: establishing self-circulation; s5: collecting test data; s6: and cooling and shutting down, opening the fan, opening the air source deflation valve, the turbine air inlet valve and the compressor deflation valve, closing the self-circulation valve, stopping the fan after the temperature of the turbine inlet is reduced to 60-70 ℃, and cutting off the lubricating oil supply after the fan is stopped. According to the scheme, the supercharger is directly connected to the supercharger test bed, the real working condition of the supercharger is simulated through the work of the supercharger test bed, under the condition, the detection result of the supercharger is closer to the real working result, and the acquired data are more real and reliable.
Description
Technical Field
The invention relates to the technical field of supercharger detection, in particular to a supercharger working state inspection test method.
Background
Exhaust gas turbocharging is the most important and most widely used technique for improving the dynamic performance of automobile engines. And turbochargers are an essential element in exhaust gas turbocharging technology. Air tightness and functionality detection for a turbocharger are one of the main ways to judge the quality of the turbocharger. At present, an offline sampling detection mode is adopted for a detection test of the turbocharger, detection gas mainly used in the mode is compressed air output by an air pump, the method cannot accurately simulate the actual practical working condition of the turbocharger, and the detection result is inconsistent with the output parameter of the turbocharger under the actual working condition.
Disclosure of Invention
The invention aims to provide a supercharger working state inspection test method, which is used for carrying out test on a supercharger before the supercharger leaves a factory.
In order to achieve the above object, the basic scheme of the invention is as follows:
the supercharger working state inspection test method adopts a supercharger test bed to carry out a test, and comprises the following steps:
s1: early-stage preparation, namely mounting the supercharger on a supercharger test bed, and checking whether the supercharger test bed meets the driving requirement;
s2: the method comprises the following steps of (1) checking a pipeline in a low-speed test run, checking the state of a valve after a supercharger test run platform meets a driving requirement, starting a fan, and adjusting a turbine air inlet valve to enable a supercharger to operate at 10% -20% of the highest rotating speed;
s3: adjusting the inlet pressure of the turbine, igniting, opening the inlet valve of the turbine to make the inlet pressure of the turbine reach 1.3-1.4KPa, closing the air release valve of the air source, closing the accelerator switch to the minimum, opening the fuel pump, and igniting after the fuel oil pressure reaches 5bar and stabilizes for 10 s;
s4: establishing self-circulation, opening the self-circulation valve, closing a gas compressor bleed valve, closing a turbine gas inlet valve, and opening a wind source bleed valve;
s5: acquiring test data, adjusting the supercharger to flow and pressure ratio with definite performance points after running for at least 2min in a self-circulation stable mode, storing data twice after the performance points are stable, increasing the oil injection amount to the maximum rotating speed of the supercharger, and stabilizing the recorded data for 1min to ensure that the oil temperature data is correct;
s6: and cooling and shutting down, opening the fan, opening the air source deflation valve, the turbine air inlet valve and the compressor deflation valve, closing the self-circulation valve, stopping the fan after the temperature of the turbine inlet is reduced to 60-70 ℃, and cutting off the lubricating oil supply after the fan is stopped.
Further, the method also comprises a coasting experiment step between the steps S5 and S6, wherein the coasting experiment step is specifically to open the turbine air inlet valve to reduce the rotating speed of the supercharger to 60%, cut off the fuel supply after the stable operation is carried out for 1min, start timing after the fuel supply is cut off, and end timing after the rotating speed of the supercharger disappears.
Further, in step S1, the driving requirement is specifically that no foreign object enters the air passage, the oil passage, the water passage and the supercharger housing, the oil passage returns oil smoothly, and the fuel is sufficient.
Further, in step S2, checking the valve state specifically includes ensuring that the air source purge valve is 60% open, the compressor purge valve is 50% open, and the turbine intake valve and the self-circulation valve are completely closed.
Further, in step S3, whether ignition is successful or not is determined by the ignition sound and the temperature of the combustion chamber, if ignition is unsuccessful for three times, ignition is stopped to remove the fault, and ignition is performed after cold air is blown for 5 min.
Further, in step S4, if it is found that the supercharger rotation speed is decreased too fast, the ignition switch is pressed.
Further, in step S4, in the self-circulation state, the compressor bleed valve is closed, the turbine intake valve is closed, the wind source bleed valve is opened by 50-60%, and the self-circulation valve is opened by 60-70%.
Further, the pressure of the lubricating oil in the step S2 is 2.5bar, the pressure of the lubricating oil in the steps S3 and S4 is increased to 3-3.5bar, and the pressure of the lubricating oil in the step S5 is increased to 4-4.5 bar.
The beneficial effect of this scheme: (1) according to the scheme, the supercharger is directly connected to the supercharger test bed, the real working condition of the supercharger is simulated through the work of the supercharger test bed, under the condition, the detection result of the supercharger is closer to the real working result, and the acquired data are more real and reliable.
(2) The scheme is used for testing the supercharger before leaving the factory, whether the factory performance index of the supercharger meets the design index can be monitored, the time of the whole testing process is short, and the detection test on the supercharger can be efficiently completed.
Drawings
FIG. 1 is a flow chart of an embodiment of the present invention;
fig. 2 is a connection diagram of a booster test bed in the embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Reference numerals in the drawings of the specification include: the device comprises a fan 1, a compressor 2, a turbine 3, an ignition device 4, a pressure sensor 5, a temperature sensor 6, a rotating speed sensor 7, a differential pressure sensor 8, a flow sensor 9, a control unit 10, a vibration sensor 11, a noise test point 12, a silencer 13, a damper 14, an air source deflation valve 15, a compressor deflation valve 16, a turbine air inlet valve 17, a self-circulation valve 18, a diesel oil station 19, a main fuel pump 20, a secondary fuel pump 21, an oil injection device 22, a liquid level sensor 23, a main combustion chamber 24 and a secondary combustion chamber 25.
Examples
Substantially as shown in figure 1: the supercharger working state inspection test method adopts a supercharger test bed to carry out tests, and as shown in a combined figure 2, the supercharger test bed comprises a fan 1, a gas compressor 2, a turbine 3, a fuel unit, a combustion chamber, a lubricating oil unit, an ignition device 4, a plurality of pipelines, a plurality of valves, a plurality of pressure sensors 5, a plurality of temperature sensors 6, a plurality of rotating speed sensors 7, a differential pressure sensor 8, a flow sensor 9, a plurality of control units 10, a vibration sensor 11, a noise measuring instrument, a silencer 13 and a plurality of shock absorbers 14; the pipelines comprise an air inlet pipeline, a pipeline from the air compressor 2 to the combustion chamber, a pipeline from the combustion chamber to the turbine 3, an exhaust pipeline from the turbine 3, a fuel oil supply pipeline and a lubricating oil pipeline; the valves include an air bleed valve 15, a compressor bleed valve 16, a turbine air intake valve 17, and a self-circulating valve 18.
The air inlet pipeline, the pipeline from the air compressor 2 to the combustion chamber, the pipeline from the combustion chamber to the turbine 3, the exhaust pipeline of the turbine 3, the fuel oil supply pipeline and the lubricating oil pipeline are respectively provided with a pressure sensor 5, the air inlet pipeline, the combustion chamber, the lubricating oil pipeline and the exhaust pipeline of the turbine 3 are respectively provided with a temperature sensor 6, a plurality of rotating speed sensors 7 are arranged in the air compressor 2 and used for detecting the rotating speed of a supercharger in the air compressor 2, a differential pressure sensor 8 and a flow sensor 9 are arranged on the air inlet pipeline, the control units 10 are respectively connected with the pressure sensors 5, the temperature sensors 6, the rotating speed sensors 7, the differential pressure sensors 8 and the flow sensors 9 and collect and process data information of the pressure sensors 5, the temperature sensors 6, the rotating speed sensors 7, the differential pressure sensors 8 and the flow sensors 9.
The method for carrying out the detection test by adopting the supercharger test bed comprises the following steps:
s1: the method comprises the following steps of preparing at an early stage, mounting a supercharger on a supercharger test bed, and checking whether the supercharger test bed meets a driving requirement, wherein the driving requirement is that no foreign matter enters an air passage, an oil passage, a water passage and a supercharger shell, oil return of the oil passage is smooth, and fuel oil is sufficient;
s2: the method comprises the following steps of (1) checking a pipeline in a low-speed test run, checking the state of a valve after a booster test run platform meets the start requirement, ensuring that an air source air release valve is 60% opened, a compressor air release valve is 1650% opened, an air inlet valve of a turbine 3 and a self-circulation valve 18 are completely closed, starting a fan 1, and adjusting the air inlet valve of the turbine 3 to enable a booster to operate at 10% -20% of the highest rotating speed, wherein the pressure of lubricating oil is 2.5 bar;
s3: adjusting the air inlet pressure of a turbine 3, igniting, opening an air inlet valve of the turbine 3 to enable the air inlet pressure of the turbine 3 to reach 1.3-1.4KPa, closing an air source air release valve, closing an accelerator switch to be minimum, opening a fuel pump, igniting after the fuel oil pressure reaches 5bar and stabilizes for 10s, judging whether the ignition is successful or not through ignition sound and the temperature of a combustion chamber, if the ignition is unsuccessful for three times, stopping the ignition to discharge faults, blowing cold air for 5min, then igniting, and increasing the pressure of lubricating oil to 3-3.5 bar;
s4: establishing self-circulation, opening a self-circulation valve 18, closing a compressor air release valve 16, closing a turbine air inlet valve 17, opening an air source air release valve, pressing an ignition switch if the rotating speed of the supercharger is reduced too fast, closing the compressor air release valve 16, closing the turbine air inlet valve 17, opening the air source air release valve by 50-60%, opening the self-circulation valve 18 by 60-70% and maintaining the pressure of lubricating oil at 3-3.5bar in a self-circulation state;
s5: acquiring test data, after running-in for at least 2min by self-circulation stable operation, increasing the pressure of lubricating oil to 4-4.5bar, adjusting a supercharger to a flow rate and a pressure ratio with definite performance points, storing data twice after the performance points are stable, increasing the oil injection amount to the highest rotating speed of the supercharger, and stably recording the data for 1min to ensure that the oil temperature data is correct, wherein the data comprises various data acquired by a plurality of pressure sensors 5, a plurality of temperature sensors 6, a plurality of rotating speed sensors 7, a differential pressure sensor 8, a flow sensor 9, a vibration sensor 11 and a noise measuring instrument;
s6: in the idling experiment, the turbocharger rotating speed is reduced to 60% by opening the turbine air inlet valve 17, the fuel supply is cut off after the stable operation is carried out for 1min, the timing is started after the fuel supply is cut off, and the timing is finished after the supercharger rotating speed disappears;
s7: and (3) cooling and shutting down, opening the fan 1, opening the air source deflation valve 15, the turbine air inlet valve 17 and the compressor deflation valve 16, closing the self-circulation valve 18, stopping the fan 1 after the inlet temperature of the turbine 3 is reduced to 60-70 ℃, and cutting off the lubricating oil supply after the fan 1 is stopped.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or prior to the priority date of the application, so that those skilled in the art can now appreciate that all of the above-described techniques in this field and have the ability to apply routine experimentation before this date can be combined with one or more of the present teachings to complete and implement the present invention, and that certain typical known structures or known methods do not pose any impediments to the implementation of the present invention by those skilled in the art. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (8)
1. A supercharger working state inspection test method adopts a supercharger test bed for testing, and is characterized in that: the method comprises the following steps:
s1: early-stage preparation, namely mounting the supercharger on a supercharger test bed, and checking whether the supercharger test bed meets the driving requirement;
s2: the method comprises the following steps of (1) checking a pipeline in a low-speed test run, checking the state of a valve after a supercharger test run platform meets a driving requirement, starting a fan, and adjusting a turbine air inlet valve to enable a supercharger to operate at 10% -20% of the highest rotating speed;
s3: adjusting the inlet pressure of the turbine, igniting, opening the inlet valve of the turbine to make the inlet pressure of the turbine reach 1.3-1.4KPa, closing the air release valve of the air source, closing the accelerator switch to the minimum, opening the fuel pump, and igniting after the fuel oil pressure reaches 5bar and stabilizes for 10 s;
s4: establishing self-circulation, opening the self-circulation valve, closing a gas compressor bleed valve, closing a turbine gas inlet valve, and opening a wind source bleed valve;
s5: acquiring test data, adjusting the supercharger to flow and pressure ratio with definite performance points after running for at least 2min in a self-circulation stable mode, storing data twice after the performance points are stable, increasing the oil injection amount to the maximum rotating speed of the supercharger, and stabilizing the recorded data for 1min to ensure that the oil temperature data is correct;
s6: and cooling and shutting down, opening the fan, opening the air source deflation valve, the turbine air inlet valve and the compressor deflation valve, closing the self-circulation valve, stopping the fan after the temperature of the turbine inlet is reduced to 60-70 ℃, and cutting off the lubricating oil supply after the fan is stopped.
2. The supercharger operation state inspection test method according to claim 1, wherein: and a step of idling experiment is further included between the steps S5 and S6, the idling experiment is specifically that the speed of the supercharger is reduced to 60% by opening the air inlet valve of the turbine, the fuel supply is cut off after the stable operation is carried out for 1min, the timing is started after the fuel supply is cut off, and the timing is ended after the revolution of the supercharger disappears.
3. The supercharger operation state inspection test method according to claim 1, wherein: in the step S1, the driving requirement is that no foreign object enters the air passage, the oil passage, the water passage and the supercharger shell, the oil passage returns oil smoothly, and the fuel is sufficient.
4. The supercharger operation state inspection test method according to claim 3, wherein: in step S2, the checking of the valve state specifically includes ensuring that the air source purge valve is 60% open, the compressor purge valve is 50% open, and the turbine intake valve and the self-circulation valve are completely closed.
5. The supercharger operation state inspection test method according to claim 2, wherein: in the step S3, whether ignition is successful or not is judged according to the ignition sound and the temperature of the combustion chamber, if ignition is unsuccessful for three times, ignition is stopped to discharge faults, and ignition is performed after cold air is blown for 5 min.
6. The supercharger operation state inspection test method according to claim 2, wherein: in step S4, if the supercharger rotation speed is found to have dropped too fast, the ignition switch is pressed.
7. The supercharger operation state inspection test method according to claim 6, wherein: in the step S4, in the self-circulation state, the compressor air release valve is closed, the turbine air inlet valve is closed, the air source air release valve is opened by 50-60%, and the self-circulation valve is opened by 60-70%.
8. The supercharger operation state inspection test method according to claim 7, wherein: the pressure of the lubricating oil in the step S2 is 2.5bar, the pressure of the lubricating oil in the steps S3 and S4 is increased to 3-3.5bar, and the pressure of the lubricating oil in the step S5 is increased to 4-4.5 bar.
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| CN202111095060.2A CN113654787B (en) | 2021-09-17 | 2021-09-17 | Supercharger working state test method |
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| CN202111095060.2A CN113654787B (en) | 2021-09-17 | 2021-09-17 | Supercharger working state test method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2206955Y (en) * | 1994-07-29 | 1995-09-06 | 铁道部大连内燃机车研究所 | Energy-saving leaving factroy testing device for waste gas turbine booster |
| RU2009123615A (en) * | 2009-06-19 | 2010-12-27 | Закрытое акционерное общество "Группа "А.Д.Д." (RU) | AUTOMATED COMBINED PLANT FOR INTEGRATED DISPOSAL OF THERMAL ENERGY OF DIESEL ENGINE |
| CN102798520A (en) * | 2012-08-10 | 2012-11-28 | 任彦领 | Comprehensive test bench of turbocharger |
| CN113375944A (en) * | 2021-06-03 | 2021-09-10 | 哈尔滨工程大学 | Comprehensive test bed system of exhaust gas turbocharger |
-
2021
- 2021-09-17 CN CN202111095060.2A patent/CN113654787B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2206955Y (en) * | 1994-07-29 | 1995-09-06 | 铁道部大连内燃机车研究所 | Energy-saving leaving factroy testing device for waste gas turbine booster |
| RU2009123615A (en) * | 2009-06-19 | 2010-12-27 | Закрытое акционерное общество "Группа "А.Д.Д." (RU) | AUTOMATED COMBINED PLANT FOR INTEGRATED DISPOSAL OF THERMAL ENERGY OF DIESEL ENGINE |
| CN102798520A (en) * | 2012-08-10 | 2012-11-28 | 任彦领 | Comprehensive test bench of turbocharger |
| CN113375944A (en) * | 2021-06-03 | 2021-09-10 | 哈尔滨工程大学 | Comprehensive test bed system of exhaust gas turbocharger |
Non-Patent Citations (2)
| Title |
|---|
| 侯懂: "DF系列内燃机车增压器试验系统的研究", 中国优秀硕士学位论文全文数据库工程科技Ⅱ辑, no. 03, pages 2 * |
| 彭文: "汽油机涡轮增压器试验台技术的研究", 中国优秀硕士学位论文全文数据库工程科技Ⅱ辑, no. 1, pages 5 * |
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