CN103207083A - Turbine efficiency analyzing method and device - Google Patents
Turbine efficiency analyzing method and device Download PDFInfo
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- CN103207083A CN103207083A CN2012105852390A CN201210585239A CN103207083A CN 103207083 A CN103207083 A CN 103207083A CN 2012105852390 A CN2012105852390 A CN 2012105852390A CN 201210585239 A CN201210585239 A CN 201210585239A CN 103207083 A CN103207083 A CN 103207083A
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- 238000004088 simulation Methods 0.000 claims description 22
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Abstract
An embodiment of the invention discloses a turbine efficiency analyzing method and device. The turbine efficiency analyzing method includes: selecting a diesel engine of any type; performing bench testing for a booster of any type matched with the diesel engine to obtain a test turbine efficiency value; performing simulated analysis and calculation for the booster according to a one-dimensional thermodynamic simulation tool to obtain a simulated turbine efficiency value; calculating the ratio of the simulated turbine efficiency value and the test turbine efficiency value, and leading the ratio to be the turbine efficiency correction factor; and performing turbine efficiency correction for the test turbine efficiency value of the boosters of other types and matched with the diesel engine by aid of the turbine efficiency correction factor. The turbine efficiency analyzing method and device can save analyzing time and improve turbine analyzing efficiency.
Description
Technical field
The present invention relates to mechanical field, particularly relate to a kind of method and device of analyzing turbine efficiency.
Background technology
Turbosupercharger is one of critical component of engine, and it is made up of pneumatic plant and two parts of turbine, and wherein, the quality of turbine coupling can produce fundamental influence to the performance of engine.In the diesel engine that adopts pulse type gas exhausting, because the influence of pulse effects, the test data that obtains according to bench test has increased the pulse energy part, and the turbine efficiency value that causes utilizing this test data further to calculate is inaccurate, even can the substantial deviation actual value.When utilizing inaccurate turbine efficiency value and turbine MAP figure relatively, also can't accurately determine the turbine matching effect, and then also can influence the performance of engine.So-called turbine MAP figure be turbosupercharger producer after exploitation according to different flow, different die swell ratio and corresponding efficient and the curve map of the generation of the relation between the rotating speed.
At present by the mode of one dimension thermodynamics emulation tool with mathematical modeling, can analyze the characteristic of diesel engine overall performance and each subsystem, calculate the turbine efficiency value by software then, the turbine efficiency value that calculates in this manner can be got rid of the influence of pulse effects.And, when this turbine efficiency value and turbine MAP figure are compared, also can judge this turbine matching effect exactly.
Yet, turbine at each turbosupercharger of mating on the identical diesel engine, all to carry out analytical calculation in the mode of mathematical modeling by one dimension thermodynamics emulation tool and just can obtain useful turbine efficiency value, because whole mathematical modeling and simulation process need manual maintenance, and the analytical calculation process is consuming time longer, will be a very huge expensive engineering consuming time so adopt prior art that the turbine efficiency value of turbosupercharger in enormous quantities is detected analysis.
Summary of the invention
In order to address the above problem, the object of the invention is to provide a kind of method and device of analyzing turbine efficiency, can solve to detect at the turbine efficiency value of turbosupercharger in enormous quantities to analyze, and expensive problem consuming time has improved the analysis efficiency of turbine efficiency.
The invention provides a kind of method of analyzing turbine efficiency, comprising:
Choose the diesel engine of any one type, from the supercharger of each type of described diesel engine coupling choose one type supercharger arbitrarily;
Supercharger to selected type carries out bench test, calculates the test turbine efficiency value of the supercharger of selected type;
According to one dimension thermodynamics emulation tool the supercharger of selected type is carried out simulation analysis, calculate the emulation turbine efficiency value of the supercharger of selected type;
Calculate described emulation turbine efficiency value and the ratio of testing the turbine efficiency value, described ratio is the turbine efficiency correction factor;
Utilize described turbine efficiency correction factor that the test turbine efficiency value of the supercharger of other type except selected type is revised.
Preferably, describedly utilize described turbine efficiency correction factor that the test turbine efficiency value of the supercharger of other type except selected type is carried out the turbine efficiency correction, comprising:
Supercharger to other type except selected type carries out bench test, calculates the test turbine efficiency value of the supercharger of other type;
Calculate the test turbine efficiency value of supercharger of described other type and the product value between the described turbine efficiency correction factor successively, described product value is revised turbine efficiency value.
Preferably, the described utilization after described turbine efficiency correction factor revises the test turbine efficiency value of the supercharger of other type except selected type also comprises:
Revised turbine efficiency value and turbine MAP figure are analyzed, judge the matching effect of turbine.
The present invention also provides a kind of device of analyzing turbine efficiency, comprising:
Choose module, be used for choosing the diesel engine of any one type, from the supercharger of each type of described diesel engine coupling choose one type supercharger arbitrarily;
The bench test module is used for the supercharger of selected type is carried out bench test, calculates the test turbine efficiency value of the supercharger of selected type;
The simulation analysis module is used for according to one dimension thermodynamics emulation tool the supercharger of selected type being carried out simulation analysis, calculates the emulation turbine efficiency value of the supercharger of selected type;
Computing module is used for calculating described emulation turbine efficiency value and the ratio of testing the turbine efficiency value, and described ratio is the turbine efficiency correction factor;
Correcting module is used for utilizing described turbine efficiency correction factor that the test turbine efficiency value of the supercharger of other type except selected type is revised.
Preferably, described correcting module comprises:
The bench test submodule is used for the supercharger of other type except selected type is carried out bench test, calculates the test turbine efficiency value of the supercharger of other type;
Calculating sub module, for the test turbine efficiency of the supercharger that calculates described other type successively and the product value between the described turbine efficiency correction factor, described product value is revised turbine efficiency value.
Preferably, also comprise:
Judge module is used for revised turbine efficiency value and turbine MAP figure are analyzed, and judges the matching effect of turbine.
A kind of method of analyzing turbine efficiency provided by the invention can be by choosing the diesel engine of any one type as can be seen by above-described embodiment, from the supercharger of each type of described diesel engine coupling choose one type supercharger arbitrarily; Supercharger to selected type carries out bench test, calculates the test turbine efficiency value of the supercharger of selected type; According to one dimension thermodynamics emulation tool the supercharger of selected type is carried out simulation analysis, calculate the emulation turbine efficiency value of the supercharger of selected type; Calculate described emulation turbine efficiency value and the ratio of testing the turbine efficiency value, described ratio is the turbine efficiency correction factor; Just only need to carry out simulation analysis and repeatedly bench test calculate, just can realize the supercharger of other and same engine coupling is carried out the turbine efficiency analysis, saved the plenty of time, improved the turbine analysis efficiency.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
A kind of method flow diagram of analyzing turbine efficiency that Fig. 1 discloses for the embodiment of the invention one;
A kind of method flow diagram of analyzing turbine efficiency that Fig. 2 discloses for the embodiment of the invention two;
A kind of apparatus structure synoptic diagram of analyzing turbine efficiency that Fig. 3 discloses for the embodiment of the invention three;
A kind of apparatus structure synoptic diagram of analyzing turbine efficiency that Fig. 4 discloses for the embodiment of the invention four;
Fig. 5 is for adopting the turbine efficiency of not eliminating pulse energy calculating of prior art and the comparison synoptic diagram of turbine MAP figure;
Fig. 6 is for adopting method of the present invention through the comparison synoptic diagram of revised turbine efficiency and turbine MAP figure.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawing the embodiment of the invention is described in detail.
Need to prove that turbosupercharger is one of critical component of engine, comprise two parts of pneumatic plant and turbine, exhaust energy is converted into the energy of turbine rotation by the expansion of waste gas in turbine, and further by the axle drive pneumatic plant rotation between pneumatic plant and the turbine, thereby reach the increase admission pressure, and then the increase air inflow is improved diesel engine performance.
Pneumatic plant MAP figure and the MAP figure of turbine are that its performance can be made the curve that the efficient that comprises different flow, different die swell ratio correspondences and rotating speed are made mutual correspondence usually by supercharger producer after supercharger has been developed.
Embodiment one
The invention provides a kind of method of analyzing turbine efficiency, concrete method flow diagram as shown in Figure 1 comprises:
Step 101: choose the diesel engine of any one type, from the supercharger of each type of described diesel engine coupling choose one type supercharger arbitrarily;
Step 102: the supercharger to selected type carries out bench test, calculates the test turbine efficiency value of the supercharger of selected type;
Step 103: according to one dimension thermodynamics emulation tool the supercharger of selected type is carried out simulation analysis, calculate the emulation turbine efficiency value of the supercharger of selected type;
Step 104: calculate described emulation turbine efficiency value and the ratio of testing the turbine efficiency value, described ratio is the turbine efficiency correction factor;
Step 105: utilize described turbine efficiency correction factor that the test turbine efficiency value of the supercharger of other type except selected type is revised.
Step 105A: the supercharger to other type except selected type carries out bench test, calculates the test turbine efficiency value of the supercharger of other type;
Step 105B: calculate the test turbine efficiency value of supercharger of described other type and the product value between the described turbine efficiency correction factor successively, described product value is revised turbine efficiency value.
By above-described embodiment one as can be seen: a kind of method of analyzing turbine efficiency provided by the invention, only need be by any one supercharger that the diesel engine with any one type is mated, utilize one dimension thermodynamics emulation tool to carry out simulation analysis one time, calculate emulation turbine efficiency value, just can obtain testing the turbine efficiency value in conjunction with bench test, calculate the turbine efficiency correction factor, utilize the correction factor just can be to revising with other any a superchargers of diesel oil and coupling.Method provided by the invention has avoided carrying out repeatedly simulation analysis, saves analysis time, improves analysis efficiency.
Embodiment two
Can utilize the revised turbine efficiency value that obtains among the embodiment one, the quality of turbine match is judged, with the convenient data that the improvement of turbine provided usefulness.For this reason, the invention provides and implement two, concrete another kind is as described in Figure 2 analyzed the method for turbine efficiency, comprising:
Step 201: choose the diesel engine of any one type, from the supercharger of each type of described diesel engine coupling choose one type supercharger arbitrarily;
Step 202: the supercharger to selected type carries out bench test, calculates the test turbine efficiency value of the supercharger of selected type;
Step 203: according to one dimension thermodynamics emulation tool the supercharger of selected type is carried out simulation analysis, calculate the emulation turbine efficiency value of the supercharger of selected type;
Step 204: calculate described emulation turbine efficiency value and the ratio of testing the turbine efficiency value, described ratio is the turbine efficiency correction factor;
Step 205: utilize described turbine efficiency correction factor that the test turbine efficiency value of the supercharger of other type except selected type is revised.
Step 205 can comprise: step 205A and step 205B,
Step 206: revised turbine efficiency value and turbine MAP figure are analyzed, judge the matching effect of turbine.
For example specifically comprise: with revised turbine efficiency value described point on turbine MAP figure, then with MAP figure on efficiency value be analyzed, judge the effect of turbine coupling.
In order to contrast the technique effect that method of the present invention produces more significantly, with the comparison synoptic diagram of not eliminating turbine efficiency that pulse energy calculates and turbine MAP figure of employing prior art shown in Figure 5 and employing method of the present invention shown in Figure 6 through the later turbine efficiency of correction and the comparison synoptic diagram of turbine MAP figure.The turbine efficiency of quite a few operating point is greater than 1 as shown in Figure 5, by the definition of turbine efficiency as can be known, efficient obviously is impossible greater than 1, this phenomenon has comprised the pulse energy that the gas exhaust piping form causes just because of the air-flow as molecule in the process of calculating turbine efficiency in the actual work by turbine, and be not actual turbine efficiency, so the cooperation line of the efficient of calculating gained separates with the efficient line among the MAP, is difficult to judge quality and improvement direction by the distributing position of efficient on MAP.The efficient of turbine has returned to more normal position as shown in Figure 6, turbine efficiency has obtained approximate correction, removed by the method that calculates the pulse correction factor after the influence of pulse effects, the efficient travel line of turbine directly can be put on the MAP figure of turbine and compare, understand the matching effect of diesel engine and this turbine better.
By above-described embodiment two, as can be seen: the another kind of method of analyzing turbine efficiency provided by the present invention, embodiment one basic on, according to the revised turbine efficiency value that obtains, be analyzed with normal turbine efficiency value among the MAP figure, analyze the quality of turbine coupling, actual engineering is had very important meaning.
Embodiment three
The invention provides a kind of device of analyzing turbine efficiency, specifically shown in the structural representation of Fig. 3, comprising: choose module 301, bench test module 302, simulation analysis module 303, computing module 304, correcting module 304.
Choose module 301, be used for choosing the diesel engine of any one type, from the supercharger of each type of described diesel engine coupling choose one type supercharger arbitrarily;
Correcting module 305 is used for utilizing described turbine efficiency correction factor that the test turbine efficiency value of the supercharger of other type except selected type is revised.
Preferably, correcting module 305 comprises: bench test submodule 305A and calculating sub module 305B,
Bench test submodule 305A is used for the supercharger of other type except selected type is carried out bench test, calculates the test turbine efficiency value of the supercharger of other type;
Calculating sub module 305B, for the test turbine efficiency of the supercharger that calculates described other type successively and the product value between the described turbine efficiency correction factor, described product value is revised turbine efficiency value.
By embodiment three as can be seen: adopt a kind of device of analyzing turbine efficiency provided by the present invention, carry out analyzing and processing one time by the simulation analysis module, test calculating in conjunction with the engine bench test module again, calculate the turbine efficiency correction factor by computing module, by correcting module the supercharger of other types is carried out the turbine efficiency correction at last.Thereby only just can realize turbine efficiency analysis to a large amount of turbines improving analysis efficiency by simulation analysis, save experimentation cost.
Embodiment four
The present invention also provides the device of another kind of analysis turbine efficiency, can realize the effect of turbine match is detected, specifically shown in the structural representation of Fig. 4, comprising: choose module 401, bench test module 402, simulation analysis module 403, computing module 404, correcting module 405 and judge module 406.
Choose module 401, be used for choosing the diesel engine of any one type, from the supercharger of each type of described diesel engine coupling choose one type supercharger arbitrarily;
Correcting module 405 is used for utilizing described turbine efficiency correction factor that the test turbine efficiency value of the supercharger of other type except selected type is revised.
Preferably, correcting module 405 comprises: bench test submodule 405A and calculating sub module 405B,
Bench test submodule 405A is used for the supercharger of other type except selected type is carried out bench test, calculates the test turbine efficiency value of the supercharger of other type;
Calculating sub module 405B, for the test turbine efficiency of the supercharger that calculates described other type successively and the product value between the described turbine efficiency correction factor, described product value is revised turbine efficiency value.
By embodiment four as can be seen: adopt the another kind of device of analyzing turbine efficiency provided by the present invention, carry out analyzing and processing one time by the simulation analysis module, test calculating in conjunction with the engine bench test module again, calculate the turbine efficiency correction factor by computing module, by correcting module the supercharger of other types is carried out the turbine efficiency correction at last, utilizing judge module that revised turbine efficiency is carried out matching effect at last judges, not only realize the turbine efficiency analysis to a large amount of turbines, improve analysis efficiency, save experimentation cost, can also analyze data for practical engineering application improves certain turbine matching effect, so that testing crew is more in depth understood the improved direction of turbine.
More than a kind of turbine efficiency analytical approach provided by the present invention and device are described in detail, used specific embodiment herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (6)
1. a method of analyzing turbine efficiency is characterized in that, comprising:
Choose the diesel engine of any one type, from the supercharger of each type of described diesel engine coupling choose one type supercharger arbitrarily;
Supercharger to selected type carries out bench test, calculates the test turbine efficiency value of the supercharger of selected type;
According to one dimension thermodynamics emulation tool the supercharger of selected type is carried out simulation analysis, calculate the emulation turbine efficiency value of the supercharger of selected type;
Calculate described emulation turbine efficiency value and the ratio of testing the turbine efficiency value, described ratio is the turbine efficiency correction factor;
Utilize described turbine efficiency correction factor that the test turbine efficiency value of the supercharger of other type except selected type is revised.
2. method according to claim 1 is characterized in that, describedly utilizes described turbine efficiency correction factor that the test turbine efficiency value of the supercharger of other type except selected type is carried out the turbine efficiency correction, comprising:
Supercharger to other type except selected type carries out bench test, calculates the test turbine efficiency value of the supercharger of other type;
Calculate the test turbine efficiency value of supercharger of described other type and the product value between the described turbine efficiency correction factor successively, described product value is revised turbine efficiency value.
3. method according to claim 1 is characterized in that, the described utilization after described turbine efficiency correction factor revises the test turbine efficiency value of the supercharger of other type except selected type also comprises:
Revised turbine efficiency value and turbine MAP figure are analyzed, judge the matching effect of turbine.
4. a device of analyzing turbine efficiency is characterized in that, comprising:
Choose module, be used for choosing the diesel engine of any one type, from the supercharger of each type of described diesel engine coupling choose one type supercharger arbitrarily;
The bench test module is used for the supercharger of selected type is carried out bench test, calculates the test turbine efficiency value of the supercharger of selected type;
The simulation analysis module is used for according to one dimension thermodynamics emulation tool the supercharger of selected type being carried out simulation analysis, calculates the emulation turbine efficiency value of the supercharger of selected type;
Computing module is used for calculating described emulation turbine efficiency value and the ratio of testing the turbine efficiency value, and described ratio is the turbine efficiency correction factor;
Correcting module is used for utilizing described turbine efficiency correction factor that the test turbine efficiency value of the supercharger of other type except selected type is revised.
5. device according to claim 4 is characterized in that, described correcting module comprises:
The bench test submodule is used for the supercharger of other type except selected type is carried out bench test, calculates the test turbine efficiency value of the supercharger of other type;
Calculating sub module, for the test turbine efficiency of the supercharger that calculates described other type successively and the product value between the described turbine efficiency correction factor, described product value is revised turbine efficiency value.
6. device according to claim 4 is characterized in that, also comprises:
Judge module is used for revised turbine efficiency value and turbine MAP figure are analyzed, and judges the matching effect of turbine.
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| CN110543715A (en) * | 2019-08-28 | 2019-12-06 | 东风汽车集团有限公司 | Two-stage supercharging system matching method based on simulation calculation |
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