Device for testing low-temperature low-air-pressure starting and operating characteristics of engine

Abstract

The invention discloses a device for testing low-temperature low-air-pressure starting and operating characteristics of an engine and a testing method by utilizing the device. The device comprises a low-temperature low-air-pressure case, an engine testing case, a circulating system and an engine intake pipe, wherein the low-temperature low-air-pressure case and the engine testing case are respectively communicated with the engine intake pipe through the circulating system; the low-temperature low-air-pressure case comprises a refrigeration system and a low-air-pressure system inside; and the refrigeration system comprises a refrigeration compressor and a temperature controller, and the low-air-pressure system comprises a vacuum pump. According to the device for testing the low-temperature low-air-pressure starting and operating characteristics of the engine, disclosed by the invention, the low-temperature low-air-pressure case and the engine testing case can be assembled and disassembled according to different requirements of a user and can be applied to a test experiment of other devices under low temperature and low air pressure environment at the same time; the resource is saved; and under the conditions that the power of the refrigeration system is not enough and the air temperature is not reduced to be a temperature required by the experiment, liquid nitrogen and liquid oxygen can be placed in the low-temperature low-air-pressure case, and the device disclosed by the invention can also simulate a low-temperature environment of the south pole by matching with the refrigeration system.

Description

technical field [0001] The invention relates to a device for testing the low-temperature and low-pressure starting and running characteristics of an engine and a testing method using the device. Background technique [0002] Automatic astronomical observations and other scientific exploration activities in Antarctica require a scientific expedition support platform to provide energy power, remote telemetry and remote control, massive scientific data storage, communication and data transmission, and environmental protection. Among them, continuous and stable energy power is the key to ensure the long-term and reliable independent operation of the platform in the plateau low temperature and low pressure environment. In the special environment of the polar region, the fuel engine is the preferred choice of energy power. [0003] The starting and running characteristics of the fuel engine in the Antarctic low-temperature and low-pressure environment are very different from thos...

AI Technical Summary

Problems solved by technology

To modify the engine, it is necessary to test the starting and running characteristics of the engine in the Antarctic low temperature and low pressure environment. However, the structure and performance indicators of the existing low temperature and low pressure tanks are difficult to meet the requirements of the engine test. Therefore, it is necessary to design a set that can simulate the Antarctic low temperature and low pressure environment. Air pressure environment, a device suitable for the engine to run inside it, used to test the starting and running characteristics of the engine in this environment, and provide a basis for modifying the engine

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