CN215761918U

CN215761918U - Supercharger simulation detection system

Info

Publication number: CN215761918U
Application number: CN202122262090.XU
Authority: CN
Inventors: 周余; 龚绍南; 罗源宝; 蒋江
Original assignee: CHONGQING TURBO FLOW MACHINERY MANUFACTURING CO LTD
Current assignee: CHONGQING TURBO FLOW MACHINERY MANUFACTURING CO LTD
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2022-02-08
Anticipated expiration: 2031-09-17

Abstract

The utility model relates to a booster detects technical field, specifically booster simulation detecting system, including the fan, the compressor, the turbine, the fuel unit, the combustion chamber, lubricating oil unit, ignition, the pipeline, the valve, a pressure sensor, a weighing sensor and a control unit, the air inlet pipeline, compressor to combustion chamber pipeline, combustion chamber to turbine pipeline, turbine exhaust pipeline, divide equally on fuel supply pipeline and the lubricating oil pipeline and do not install pressure sensor, the air inlet pipeline, the combustion chamber, divide equally on lubricating oil pipeline and the turbine exhaust pipeline and do not install temperature sensor, speed sensor installs the rotational speed that is used for detecting the booster in the compressor. 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

Supercharger simulation detection system

Technical Field

The utility model relates to the technical field of supercharger detection, in particular to a supercharger simulation detection system.

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.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a supercharger simulation detection system, which is used for testing a supercharger before the supercharger leaves a factory.

In order to achieve the above object, the basic scheme of the utility model is as follows: supercharger simulation detection system, including fan, compressor, turbine, fuel unit, combustion chamber, lubricating oil unit, ignition, a plurality of pipeline and a plurality of valve, still include a plurality of pressure sensor, a plurality of temperature sensor, a plurality of speed sensor and a plurality of control unit, a plurality of the pipeline includes air inlet pipeline, compressor to combustion chamber pipeline, combustion chamber to turbine pipeline, turbine exhaust pipeline, fuel supply pipeline and lubricating oil pipeline, equally divide on air inlet pipeline, compressor to combustion chamber pipeline, combustion chamber to turbine pipeline, turbine exhaust pipeline, fuel supply pipeline and the lubricating oil pipeline and do not install pressure sensor, equally divide on air inlet pipeline, combustion chamber, lubricating oil pipeline and the turbine exhaust pipeline and do not install temperature sensor, a plurality of speed sensor installs the rotational speed that is used for detecting the supercharger in the compressor, the control units are respectively connected with the pressure sensors, the temperature sensors and the rotating speed sensors and used for collecting and processing data information of the pressure sensors, the temperature sensors and the rotating speed sensors.

Further, the device also comprises a vibration sensor and a noise measuring instrument, wherein the vibration sensor is arranged on a plane of the supercharger close to the bearing, and the noise measuring instrument carries out noise test at a position 1m away from the supercharger.

And the air inlet pipeline is provided with a pressure difference sensor and a flow sensor, and the pressure difference sensor and the flow sensor are arranged on the air inlet pipeline.

The air conditioner further comprises a silencer and a plurality of shock absorbers, wherein the silencer is installed on the air inlet pipeline, and the shock absorbers are respectively installed on the air inlet pipeline, the pipeline from the air compressor to the combustion chamber and the pipeline from the combustion chamber to the turbine.

Further, the fuel unit comprises a diesel oil station, a main fuel pump, an auxiliary fuel pump and a fuel injection device, wherein a liquid level sensor is installed in the diesel oil station, and the liquid level sensor is connected with a control unit.

Further, the combustion chamber includes main combustion chamber and vice combustion chamber, just main combustion chamber and vice combustion chamber are connected with ignition respectively.

The beneficial effect of this scheme: 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.

Drawings

FIG. 1 is a connection diagram of an embodiment of the present 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 booster simulation detection system 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.

Vibration sensor 11 installs on the plane that the booster is close to bearing department, noise measurement appearance carries out the noise test at six noise test points 12 around apart from booster 1m, muffler 13 is installed on the air intake pipeline, a plurality of bumper shock absorbers 14 are installed respectively at the air intake pipeline, compressor 2 to the combustion chamber pipeline, the combustion chamber is to 3 pipelines on the turbine, the fuel unit includes diesel oil station 19, main fuel pump 20, vice fuel pump 21 and fueling injection equipment 22, install level sensor 23 in the diesel oil station 19, level sensor 23 is connected with the control unit 10, the combustion chamber includes main combustion chamber 24 and vice combustion chamber 25, and main combustion chamber 24 and vice combustion chamber 25 are connected with ignition 4 respectively.

The specific implementation process is as follows: the method for carrying out the detection test by adopting the supercharger simulation detection system 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, and it will be appreciated by those skilled in the art that the present invention has been made available to those skilled in the art after the filing date or priority date, and that the present invention may be implemented by those skilled in the art by applying ordinary skill in the art, without departing from the spirit and scope of the present invention. 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

1. Booster simulation detecting system, including fan, compressor, turbine, fuel unit, combustion chamber, lubricating oil unit, ignition, a plurality of pipeline and a plurality of valve, its characterized in that: still include a plurality of pressure sensor, a plurality of temperature sensor, a plurality of speed sensor and a plurality of the control unit, it is a plurality of the pipeline includes that air inlet pipeline, compressor to combustion chamber pipeline, combustion chamber to turbine pipeline, turbine exhaust pipeline, fuel supply pipeline and lubricated oil pipe way, equally divide on air inlet pipeline, compressor to combustion chamber pipeline, combustion chamber to turbine pipeline, turbine exhaust pipeline, fuel supply pipeline and the lubricated oil pipe way and do not install pressure sensor, equally divide on air inlet pipeline, combustion chamber, lubricated oil pipe way and the turbine exhaust pipeline and do not install temperature sensor, it is a plurality of speed sensor installs the rotational speed that is used for detecting the booster in the compressor, it is a plurality of the control unit is connected and collects a plurality of pressure sensor, a plurality of temperature sensor, a plurality of speed sensor respectively, Data information of a plurality of temperature sensors and a plurality of rotating speed sensors.

2. The supercharger simulation detection system of claim 1, wherein: the noise testing device is characterized by further comprising a vibration sensor and a noise measuring instrument, wherein the vibration sensor is installed on a plane close to the bearing of the supercharger, and the noise measuring instrument is used for carrying out noise testing at a position 1m away from the supercharger.

3. The supercharger simulation detection system of claim 2, wherein: the air inlet pipeline is characterized by further comprising a differential pressure sensor and a flow sensor, wherein the differential pressure sensor and the flow sensor are installed on the air inlet pipeline.

4. The supercharger simulation detection system of claim 3, wherein: the silencer is installed on an air inlet pipeline, and the plurality of shock absorbers are installed on the air inlet pipeline, the pipeline from the air compressor to the combustion chamber and the pipeline from the combustion chamber to the turbine respectively.

5. The supercharger simulation detection system of claim 4, wherein: the fuel unit comprises a diesel oil station, a main fuel pump, an auxiliary fuel pump and a fuel injection device, wherein a liquid level sensor is installed in the diesel oil station, and the liquid level sensor is connected with a control unit.

6. The supercharger simulation detection system of claim 5, wherein: the combustion chamber comprises a main combustion chamber and an auxiliary combustion chamber, and the main combustion chamber and the auxiliary combustion chamber are respectively connected with an ignition device.