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Online continuous dehydration and deoxidation method for aviation fuel oil

An aerospace and fuel technology, applied in separation methods, chemical instruments and methods, liquid degassing, etc., can solve the problems of reducing heat exchange wall heat exchange, long time, affecting engine oil supply, etc., and achieves good mixing performance and operation. High elasticity and compact structure

Active Publication Date: 2014-05-28
TIANJIN UNIV
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Deposits bring the following problems to aircraft engines: (1) clogging fuel nozzles and metering valves, affecting engine oil supply, making the engine unable to start or stop; (2) reducing heat exchange on the heat exchange wall, which is for high Mach number Especially important in aircraft, where fuel is needed as a coolant for airframe and engine components
However, this device is mainly aimed at the deoxidation and dehydration treatment of the fuel remaining in the servo valve of the combat readiness missile, and uses a nitrogen spray bath to replace the dissolved water and dissolved oxygen in the fuel. This patent is aimed at the treatment of small batches of fuel, and there are three problems: small Batch intermittent operation, small processing capacity; nitrogen spray bath replacement takes a long time; fuel will be lost due to nitrogen entrainment
When it is necessary to carry out continuous dehydration and deoxidation treatment on large quantities of aerospace fuel oil, the treatment device and treatment method of this patent are obviously not competent

Method used

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  • Online continuous dehydration and deoxidation method for aviation fuel oil
  • Online continuous dehydration and deoxidation method for aviation fuel oil
  • Online continuous dehydration and deoxidation method for aviation fuel oil

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Embodiment Construction

[0023] The invention is further illustrated by the following examples. The embodiments are illustrative only, not restrictive.

[0024] use figure 1 The described procedure was carried out for experimentation. The aerospace fuels to be treated are aviation kerosene (RP-3), high-density hydrocarbon HD-01 and rocket kerosene, which contain dissolved oxygen and dissolved water. The dissolved oxygen and dissolved water before treatment are shown in Table 1.

[0025] After the aerospace fuel to be processed is pressurized by the fuel inlet pump 9, the fuel is atomized into mist droplets through the atomizing nozzle 7 after flowing through the liquid flow meter 8 to measure the flow rate, and sprayed into the static pipeline mixer 6 . At the same time, the nitrogen gas 1 is decompressed by the pressure reducing valve 2, and then flows through the gas dryer to reduce the water content carried in the nitrogen gas to less than 50ppm. Then, after adjusting the nitrogen flow rate with...

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Abstract

The invention discloses an online continuous dehydration and deoxidation method for aviation fuel oil. The method comprises the following steps: step a, forcefully mixing aviation fuel oil containing dissolved oxygen and dissolved water with dry nitrogen gas in a static pipeline mixer to dissolve the nitrogen gas so as to replace the dissolved oxygen and dissolved water with the dissolved nitrogen; step b, introducing the oil-gas mixture obtained in the step a into a swirling separator so as to carry out primary oil-gas separation, discharging tail gas containing some aviation fuel oil from the outlet in the top part of the swirling separator, and discharging the dehydrated and deoxidized aviation fuel oil from the bottom of the swirling separator. Preferably, in the step a, the aviation fuel oil containing dissolved oxygen and dissolved water is pressurized and atomized into spray through an atomizing nozzle, and then the fuel oil spray is forcefully mixed with dry nitrogen gas in the static pipeline mixer.

Description

technical field [0001] The invention relates to the field of aerospace fuel refining. Background technique [0002] Aerospace fuel is fuel oil used in aircraft and spacecraft, including but not limited to aviation kerosene, rocket kerosene, high-density hydrocarbon fuel, etc. The oxidation stability of aerospace fuels is of increasing importance for aerospace vehicles. Oxidation stability of fuel refers to the tendency of fuel to react with oxygen dissolved in fuel to form solid deposits during long-term storage or heating. Deposits bring the following problems to aircraft engines: (1) clogging fuel nozzles and metering valves, affecting engine oil supply, making the engine unable to start or stop; (2) reducing heat exchange on the heat exchange wall, which is for high Mach number This is especially important in aircraft, where fuel is required as a coolant for airframe and engine components. Dissolved water in aerospace fuel is a key factor affecting its low temperature ...

Claims

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Application Information

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IPC IPC(8): B01D17/035B01D19/00
Inventor 邹吉军张香文王莅王庆法
Owner TIANJIN UNIV
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