Testing system and testing method for efficiency of lubricating oil cooler

Abstract

The invention discloses a testing system and testing method for the efficiency of a lubricating oil cooler. The testing system comprises a lubricating oil loop and an air loop, the lubricating oil loop comprises an oil tank, an electric heater, an oil pump, an oil cooler, an input connecting pipeline and an output connecting pipeline, and the air loop comprises a cooling fan, a rectification distribution segment, an input connecting air duct and an output connecting air duct. According to the testing system, by arranging multiple thermometers, pressure meters and flow meters, data of all links can be fully monitored and recorded, and temperature increasing and cooling are conducted through air, so that the precious water resources are saved; air can be obtained at will, and the address is not limited; the corrosivity of air is low, and therefore the service life of the equipment is long; the structure is compact, and the testing method is accurate and suitable for being applied to places such as an offshore platform which is strict in space limitation.

Description

technical field [0001] The invention relates to the field of oil cooler equipment, in particular to a test system and a test method for the efficiency of a lubricating oil cooler. Background technique [0002] Hydraulic systems and lubrication systems are important components of various mechanical equipment. The hydraulic system needs to maintain a high pressure state continuously when it is working, which will generate a lot of heat. After a long time of work, the oil temperature in the machine will rise rapidly. If the heat cannot be dissipated in time, it will cause oil in the machine. The viscosity of the oil will become lower as the oil temperature rises, and the oil pressure will not reach the normal working state of the machine, and even cause damage to the main sealing elements in the mechanical system, which constitutes a mechanical safety hazard. To ensure that the unit can operate safely To operate in a stable state, the oil temperature must be controlled within ...

AI Technical Summary

Problems solved by technology

The hydraulic system needs to maintain a high pressure state continuously when it is working, which will generate a lot of heat. After a long time of work, the oil temperature in the machine will rise rapidly. If the heat cannot be dissipated in time, it will cause oil in the machine. The viscosity of the oil will become lower as the oil temperature rises, and the oil pressure will not reach the normal working state of the machine, and even cause damage to the main sealing elements in the mechanical system, which constitutes a mechanical safety hazard. To ensure that the unit can operate safely To operate in a stable state, the oil temperature must be controlled within the specified range. Although the main reason for the oil temperature rise in the lubricating system is not exactly the same as that of the hydraulic system, it is also necessary to control the oil temperature within the specified range. The cooler is a kind of lubricating oil cooling equipment commonly used in hydraulic systems and lubrication systems. Using this equipment, two fluid media with a certain temperature difference can realize heat exchange, thereby achieving the purpose of reducing the oil temperature and ensuring the normal operation of the system. Therefore, Efficiency of the oil cooler is critical

[0003] In the prior art, the lubricating oil cooler mostly adopts theoretical calculation values, especially the production and manufacture of the key component of the lubricating oil cooler—the heat exchange tube mostly uses copper fins wound outside the copper tube and internal spoilers, because the heat transfer coefficient Not high, mostly by increasing the heat transfer area, increasing the flow and increasing the air flow to meet the heat transfer requirements, increasing the flow resistance will cause the product to be too large, which cannot meet the resistance requirements of the lubricating oil system

If the resistance and heat transfer effect of the lubricating oil cooler meet the requirements of the lubricating oil system, it is necessary to increase the number of heat exchange tubes and the inner diameter of the tubes, and reduce the flow rate of the medium in the tubes. The problem is that the lubricating oil cooler has a large size and cannot meet the site requirements

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