Sodium combustion experimental device and method for obtaining sodium aerosol with extreme low concentration

An experimental device, sodium gas technology, applied in the field of reactors, can solve the problems of uncontrollable reaction, difficult operation, and extremely violent reaction of sodium water, etc., to avoid the generation of large-concentration aerosol, simple operation process, and small action area Effect

Pending Publication Date: 2020-01-21
CHINA INSTITUTE OF ATOMIC ENERGY
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Problems solved by technology

According to previous experimental experience, to ignite metal sodium in an air atmosphere, it needs to be heated to above 200°C or even higher. The reaction of sodium in air is not easy to control. When the temperature is low, an oxide film will be formed on the surface of sodium to prevent further reaction. If you want to obtain the continuous burning state of sodium, you need to contin

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  • Sodium combustion experimental device and method for obtaining sodium aerosol with extreme low concentration
  • Sodium combustion experimental device and method for obtaining sodium aerosol with extreme low concentration
  • Sodium combustion experimental device and method for obtaining sodium aerosol with extreme low concentration

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Embodiment Construction

[0028] In order to illustrate the technical solution of the present disclosure more clearly, the following describes in detail in conjunction with specific implementation methods:

[0029] The sodium combustion experimental device of the present disclosure is characterized in that the device comprises: a sodium combustion reactor 3 and an igniter 5; wherein the igniter 5 is for the sodium combustion reactor 3 to ignite;

[0030] The sodium combustion reactor 3 is designed as a cylindrical structure, made of stainless steel, and has a conical groove and a cylindrical groove at the bottom as a sodium pool. The sodium pool is heated by a ceramic electric heater, which can preheat the metal sodium 6 placed therein and melt it into a liquid state. The heating temperature is controlled and monitored by the thermocouple 10 and the temperature control circuit installed under the sodium pool. The top of the cylinder is a quartz window, which can be used for combustion state observation...

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Abstract

The invention belongs to the technical field of reactors, and particularly relates to a sodium combustion experimental device and a method for obtaining a sodium aerosol with extreme low concentration. The device includes a sodium combustion reactor and an igniter; the igniter is sodium combustion reactor ignition; the sodium combustion reactor is of a cylinder-shaped structure, a cylindrical groove is formed in the bottom of the cylinder, and a conical groove is formed in the bottom of the cylindrical groove; a heating device and a thermocouple are arranged at the bottom of the cylinder outside of the sodium combustion reactor; and a quartz window is formed above a cylinder body of the sodium combustion reactor. The method performs obtaining by using the device and comprises the steps that a, the experimental device is prepared according to the device; b, the heating device is turned on, and the experimental device in the step a is heated to 115 DEG C to 125 DEG C; c, the melting of metal sodium into liquid is observed through the quartz window, and the high-energy pulsed laser igniter is turned on; d, a sodium aerosol detector is used for sampling; and e, the sodium aerosol withthe predetermined concentration is collected. The sodium combustion experimental device and the method for obtaining the sodium aerosol with the extreme low concentration are provided.

Description

technical field [0001] The disclosure belongs to the technical field of reactors, and in particular relates to a small amount of sodium combustion experimental device and a method for obtaining extremely low concentration sodium aerosol. Background technique [0002] In the research of sodium aerosol detection technology, it is necessary to carry out the detector response experiment in the real sodium aerosol environment. Common ways to obtain sodium aerosol include sodium combustion, sodium water reaction, etc. According to previous experimental experience, to ignite metal sodium in an air atmosphere, it needs to be heated to above 200°C or even higher. The reaction of sodium in air is not easy to control. When the temperature is low, an oxide film will be formed on the surface of sodium to prevent further reaction. If you want to obtain the continuous burning state of sodium, you need to continuously stir the burning, which is difficult to operate, and the concentration o...

Claims

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Application Information

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IPC IPC(8): G01N1/44
CPCG01N1/44
Inventor 杜海鸥周培德段忆翔朴君申凤阳谢淳王荣东王国芝石文涛韩新梅
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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