EGR cooler heat exchange efficiency detection system

A technology of EGR cooler and detection system, which is applied in the direction of machine/structural component testing, instruments, measuring devices, etc., can solve the problems of high cost and large floor space, and achieve the effect of high feasibility, low cost and simple operation

Inactive Publication Date: 2016-10-12
WUXI LONGSHENG TECH
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Problems solved by technology

Although there are many devices for testing the heat exchange effici

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  • EGR cooler heat exchange efficiency detection system
  • EGR cooler heat exchange efficiency detection system

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[0017] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0018] An EGR cooler heat exchange efficiency detection system, including engine 1, dynamometer 2, fuel supply system 3, intake system 5, exhaust manifold 7, cooling circulating water controller 11, exhaust back pressure valve 17, control Device 18 and display device 19, the controlled end of the engine 1 is connected to the dynamometer 2, the engine 1 is connected to the fuel supply system and the intake system respectively, and the exhaust outlet of the engine is connected to the EGR cooler 10 to be tested through the exhaust manifold 7. The intake port, the controlled end of the EGR cooler to be tested is connected to the cooling circulating water controller 11, and the exhaust port of the EGR cooler to be tested is equipped with an exhaust back pressure valve 17; the control device is respectively connected with the dynamometer, the intake system, ...

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Abstract

The invention discloses an EGR cooler heat exchange efficiency detection system which comprises an engine, a dynamometer, an air inlet system, a fuel supply system, a cooling circulation water controller, a fuel consumption meter, an air flow meter, a temperature sensor, a pressure sensor, and a control device. The controlled end of the engine is connected to the dynamometer. The engine is connected to the fuel supply system and the air inlet system. The exhaust port of the engine is connected to an EGR cooler to be detected through an exhaust main pipe. The controlled end of the EGR cooler to be detected is connected to the cooling circulation water controller. The control device is connected to the dynamometer, the air inlet system, the fuel supply system, and the controlled end of the cooling circulation water controller. The data collection end of the control device is connected to the fuel consumption meter, the air flow meter, the temperature sensor and the pressure sensor. The system has the advantages of high feasibility, simple operation and low cost, the temperature of exhaust gas is controllable in the detection process, the EGR cooler heat transfer efficiency which is in accordance with an EGR cooler actual use condition can be tested, and a basis can be provided for the engine reasonable matching and engine efficiency improvement.

Description

technical field [0001] The invention relates to the technical field of engine exhaust emission recirculation, in particular to a test system for detecting the performance of an EGR cooler. Background technique [0002] In the engine exhaust gas recirculation system (EGR system), the EGR valve is used to return a part of the exhaust gas to the cylinder to participate in the combustion again. The exhaust gas contains a large amount of inert gas, which increases the specific heat ratio in the cylinder and can absorb more combustion heat. And to reduce the oxygen concentration, thereby reducing the combustion temperature and combustion speed in the cylinder, further reducing NO x emissions to meet emission standards. [0003] The EGR cooler is used to reduce the temperature of the exhaust gas introduced into the cylinder to participate in the combustion. The reduction of the exhaust gas temperature can not only reduce the maximum combustion temperature, but also increase the ch...

Claims

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Application Information

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IPC IPC(8): G01M99/00G01N25/20
CPCG01M99/002G01N25/20
Inventor 于政
Owner WUXI LONGSHENG TECH
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