Engine simulation test device capable of achieving ultrahigh compression temperature and pressure

Abstract

The invention provides an engine simulation test device capable of achieving ultrahigh compression temperature and pressure, and belongs to the field of diesel engine high-temperature and high-pressure systems. The problems that an existing engine simulation test cannot achieve ultrahigh compression temperature and pressure, and the temperature and the pressure cannot be adjusted are solved. The device comprises a compressed air inlet mechanism, a nitrogen inlet mechanism, a pressure stabilizing mechanism, a circulating heating mechanism, an air inlet mechanism and a rapid compressor mechanism, and the compressed air inlet mechanism and the nitrogen inlet mechanism are both connected with the air inlet end of a pressure stabilizing tank in the pressure stabilizing mechanism, the compressed air inlet mechanism and the nitrogen inlet mechanism respectively introduce air and nitrogen into the surge tank, the surge tank is connected with the cyclic heating mechanism, the cyclic heating mechanism heats the air in the surge tank, the air outlet end of the surge tank is connected with the rapid compressor mechanism, and an air inlet mechanism is connected between the surge tank and the quick compressor mechanism. The device is mainly used for engine simulation tests.

Description

technical field [0001] The invention belongs to the field of high temperature and high pressure systems of diesel engines, in particular to an engine simulation test device capable of realizing ultrahigh compression temperature and pressure. Background technique [0002] Normally, the compression end of a two-stroke low-speed engine has relatively high temperature and pressure, and the temperature at the compression end can reach 893K and the pressure can reach 150bar. In general, it is difficult for constant volume bomb test systems to achieve such high temperatures and pressures. In order to simulate the test conditions at the end of engine compression, it is usually necessary to use compression test instruments to meet the test requirements. However, two-stroke low-speed engines often have relatively large strokes, and the materials and equipment needed to simulate long-stroke engines under test conditions are relatively large and complicated. Therefore, short-stroke fas...

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Problems solved by technology

[0003] At present, most of the commonly used gas supply equipment only provide a certain pressure and cannot meet the higher temperature at the same time, or can only provide lower temperature and pressure at the same time. After the initial intake air is compressed by the fast compressor, the temperature and The pressure is far from meeting the test requirements

And the temperature, pressure and gas composition provided cannot be adjusted flexibly

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