Accuracy control device of dissolved oxygen content in liquid fuel

Abstract

The present invention discloses an accuracy control device of dissolved oxygen content in the liquid fuel. The device comprises a vacuum pump, a stirrer, an oxygen bottle, an oxygen sensor, a flow controller and a vacuum tank. The vacuum pump is connected with the oxygen bottle through a connection pipeline which is provided with a control valve and the flow controller, the vacuum pump is connected with the vacuum tank through the pipeline, the stirrer is disposed at the lower portion of the vacuum tank, the oxygen sensor is fixed at the top of the vacuum tank, one end of the oxygen sensor is connected with a dissolved oxygen parameter transmitter, the other end of the oxygen sensor is inserted into the vacuum tank, and the top portion of the vacuum tank is provided with a valve. The accuracy control device of dissolved oxygen content in the liquid fuel is simple to operate to greatly improve the deoxygenization efficiency and accuracy, and the deoxygenization process does not need the usage of the chemical medicine so as to avoid the generation of the additional impurity products in the chemical reaction process and realize the accurate input of the dissolved oxygen in the liquid fuel in the oxygenation process.

Description

technical field [0001] The invention relates to a device for adding and removing oxygen content, in particular to a device for precisely controlling dissolved oxygen content in liquid fuel. Background technique [0002] The oxygen content of liquid fuel directly affects the thermal stability and coking characteristics of the fuel. In the preparation of fuels with different oxygen content, it is mainly divided into two processes: deoxygenation and oxygen addition, and the synergistic effect of the two processes can obtain the fuel with the required oxygen content. [0003] At present, the deoxygenation methods of liquid fuels are divided into physical deoxygenation and chemical deoxygenation. Regarding the physical oxygen removal method, it mainly includes the ultrasonic pressure wave method, the inert gas removal method, the semi-permeable membrane filtration method and the vacuum oxygen removal method, but the current physical oxygen removal method has low efficiency and p...

AI Technical Summary

Problems solved by technology

However, there are some difficulties in the use of the deoxidizer, and the operation is more complicated, because the deoxidizer must be completely isolated from the air during storage and deoxidation, otherwise a strong exothermic reaction will occur

Second, studies have shown that while oxygen scavengers react with dissolved oxygen, they also react with other components in the fuel such as heteroatom compounds, thereby reducing their deoxygenation effect

Images