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Leaked oil ignition test system based on typical mechanical thermal surface of marine engine room

A test system, hot surface technology, applied in the direction of analyzing materials, material thermal analysis, measuring devices, etc., can solve problems such as inaccuracy

Inactive Publication Date: 2020-10-30
SHANGHAI MARITIME UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the common test platforms and test systems are all based on the oil pool fire test bench in the general cabin, and the test results are not accurate for the characterization of the process of igniting the flowing oil on the hot surface of the actual ship engine room.

Method used

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  • Leaked oil ignition test system based on typical mechanical thermal surface of marine engine room
  • Leaked oil ignition test system based on typical mechanical thermal surface of marine engine room
  • Leaked oil ignition test system based on typical mechanical thermal surface of marine engine room

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] figure 1 A schematic diagram of a test platform for oil leakage and hot surface ignition testing in a ship's engine room designed for the present invention. At the beginning of the experiment, first turn on the main power switch of the measurement and control circuit box and the operating software of the upper computer, select the correct communication COM port on the software interface, and set basic information such as temperature control mode and safety parameters. figure 2 It is a mechanical thermal surface simulation device for ship engine room, and its structure includes components such as image 3 As shown, including the device support base, insulation cover, heating plate, simulated mechanical thermal surface, surface thermocouple, thermocouple connection wire interface, cooling fan, single-chip microcomputer, USB interface, upper machine position, heating status indicator light and power on, The main power switch of the device, the drive board, the relay, the...

Embodiment 2

[0031] The experimental testing system of the above-mentioned embodiment 1 can realize the simulation and collection of characterization parameters for the dynamic process of different leaked oils being ignited on the typical mechanical heat surface of the test ship engine room, as follows:

[0032] Since the high-temperature mechanical heating surface inside the ship’s engine room is usually in a closed or semi-closed cabin environment, when the combustible fuel used in the ship flows in liquid form and touches the high-temperature mechanical heating surface, whether the ignition phenomenon can occur is not related to the high-temperature mechanical heating In addition to the relationship between the surface temperature, it is also closely related to the air velocity inside the ship's engine room near the high-temperature mechanical heat surface, the liquid auto-ignition temperature of the marine oil, the physical parameters of the oil, and the movement of the ship. Therefore,...

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PUM

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Abstract

The invention discloses a leaked oil ignition test system based on a typical mechanical thermal surface of a marine engine room. The leaked oil ignition test system is composed of a hot surface ignition source simulation device, an oil leakage simulation device (a fuel oil barrel, a peristaltic pump and an oil conveying pipe), an oil distribution groove, a flowing surface, an oil discharging groove and the like, wherein the hot surface ignition source simulation device comprises a heating plate assembly box, a measurement and control circuit box, a simulation hot surface, a temperature sensor,a weighing sensor and an upper computer. The invention relates to an existing testing device for oil leakage and ignition in a marine engine room, wherein the testing device can simulate the processthat oil flows to the mechanical hot surface to be heated and ignited while fire source characterization parameters of the hot surface are obtained through testing, so that the designed system has high pertinence, the problem of ignition source energy change testing when the flowing oil is ignited on the mechanical hot surface of the marine engine room is effectively solved, and good application value is achieved.

Description

Technical field: [0001] The invention belongs to the field of ship fire safety, and particularly relates to a test device for oil leakage and ignition in a ship engine room, which can simulate the process of oil flowing to a mechanical heating surface to be heated and ignited, and simultaneously test and obtain the fire source characteristic parameters of the hot surface. Background technique: [0002] With the rapid development of my country's shipping and shipbuilding industry, the market indicators have been in the forefront of the world for many years. However, in recent years, ship fire accidents have occurred frequently, accounting for more than 11% of the total number of maritime disasters, and the losses caused by them rank first among all maritime disasters. As the "heart" of the whole ship, the ship's engine room is equipped with power equipment, electrical devices, complex piping systems and a large amount of marine oil (light diesel, heavy fuel oil, lubricating o...

Claims

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Application Information

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IPC IPC(8): G01N25/00
CPCG01N25/00
Inventor 汪侃何妤如
Owner SHANGHAI MARITIME UNIVERSITY
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