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Two-stage sequential turbocharging system basic module test platform and test method

A technology of sequential supercharging and basic modules, applied in the direction of internal combustion engine testing, etc., can solve the problems of increasing the risk and cost of the two-stage sequential supercharging system test, and the system performance and reliability cannot be guaranteed, so as to reduce the test risk and cost , the effect of improving reliability

Pending Publication Date: 2022-05-13
CHONGQING JIANGJIN SHIPBUILDING IND
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Problems solved by technology

If superchargers, valves and other components that have not been fully tested and verified are installed on the two-stage sequential supercharging system of the diesel engine, the performance and reliability of the entire system cannot be guaranteed, which increases the risk and cost of the two-stage sequential supercharging system test

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  • Two-stage sequential turbocharging system basic module test platform and test method

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Embodiment Construction

[0033] See Figure 1 , a two-stage sequential pressurization system basic module test platform, specifically including gas generation system 16, lubricating oil system 9, measurement and control system 17, high-pressure stage supercharger 6, low-pressure stage supercharger 8, intercooler 7, sequential switching valve 12, etc. The measurement control system 17 is connected with each equipment (including all parts that can be controlled) for controlling each equipment and measuring parameters at each measuring point. The platform can simulate the matching performance of two-stage sequential turbocharged diesel engine system and supercharger.

[0034] The gas generation system 16 is composed of burner 14, small air source valve 15, vent valve 1 and self circulation valve 2. It can simulate the gas generation system of diesel engine to produce gas and provide power source for the test platform of two-stage sequential pressurization system. Burner 14 adopts a straight cylinder combustio...

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Abstract

The invention discloses a two-stage sequential turbocharging system basic module test platform and a test method. Comprising a high-pressure-stage gas compressor, a high-pressure-stage variable-geometry turbine, a low-pressure-stage gas compressor and a low-pressure-stage variable-geometry turbine, the high-pressure-stage variable-geometry turbine is connected with the low-pressure-stage variable-geometry turbine in series, the low-pressure-stage variable-geometry turbine is connected with the high-pressure-stage variable-geometry turbine in series, and an intercooler is connected between the low-pressure-stage gas compressor and the high-pressure-stage gas compressor in series. An inlet of the high-pressure-stage variable geometry turbine is connected with an outlet of the gas generation system, an outlet of the high-pressure-stage gas compressor is connected with a main air branch and an auxiliary air branch, the main air branch is connected into an air inlet of the gas generation system, and the auxiliary air branch is connected into a gas outlet of the gas generation system. A fuel gas bypass branch is connected between the high-pressure-stage variable geometry turbine fuel gas inlet pipeline and the high-pressure-stage variable geometry turbine fuel gas outlet pipeline, and a successive switching valve, a flowmeter V4 and a fuel gas bypass valve are arranged on the fuel gas bypass branch.

Description

technical field [0001] The invention relates to the technical field of turbocharger, in particular to a basic module test platform and a test method of two-stage sequential supercharging system. Background technology [0002] With the development of diesel engine technology towards high supercharging, there has been a research on the matching technology of two-stage sequential supercharger system in diesel engine system. The selection of key accessories such as turbocharger, intercooler, switching valve, air bypass valve and gas bypass valve in two-stage sequential supercharging system is directly related to the performance and reliability of two-stage sequential supercharging system of diesel engine. The supercharger, valve and other components that have not been fully tested and verified are installed on the two-stage sequential supercharging system of diesel engine, the performance and reliability of the whole system can not be guaranteed, which increases the test risk and cos...

Claims

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Application Information

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IPC IPC(8): G01M15/05
CPCG01M15/05
Inventor 申华周黎刘扬周东祝磊王强王肖路袁小平王文鼎龙家豪孙瀑云
Owner CHONGQING JIANGJIN SHIPBUILDING IND
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