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Method for producing oxygen by microwave heated oxygen candle and oxygen candle and microwave device

A microwave heating and microwave device technology, applied in the direction of chloric acid, chlorate, etc., can solve the problems of unstoppable decomposition process, small particle diameter, and large smoke generation, so as to save oxygen, increase oxygen content, and increase production The effect of oxygen

Inactive Publication Date: 2007-05-16
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the existence of the fuel component in the oxygen candle formula has the following disadvantages: 1. The weight of the oxygen candle body used as a source of breathing oxygen for many people is generally about 12kg, and the oxygen production is 2~2.8m 3 , once the fuel is ignited and burned, the decomposition process cannot be stopped
3. When the metal fuel in the oxygen candle burns, the amount of smoke is large and the diameter of the particles is small. The oxygen candle oxygen generator must be equipped with a fine filter, and the cost of this filter is high.

Method used

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  • Method for producing oxygen by microwave heated oxygen candle and oxygen candle and microwave device

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Embodiment 1

[0050] A microwave device equipped with a microwave tube with a power of 750W (a microwave tube is a device that converts electrical energy into microwave energy. Because of the conversion efficiency, the power of the microwave device is greater than the power of the microwave tube), the microwave frequency is 2450±50MHz; the weight of the oxygen candle is 20g, cylindrical, diameter 25mm, height 25mm, density 1.6g / cm 3 . Oxygen candle formula (weight percent): sodium chlorate (NaClO 3 )86%, barium peroxide (BaO 2 ) 4%, micron copper oxide (CuO) 10%. It takes 81s for the oxygen candle to absorb microwave energy and be heated in the microwave until it undergoes thermal decomposition to produce oxygen.

Embodiment 2

[0052] A microwave device equipped with a microwave tube with a power of 750W, the microwave frequency is 2450±50MHz, the weight of the oxygen candle is 20g, the diameter is 25mm, the height is 25mm, and the density is 1.6g / cm 3 . Oxygen candle formula (weight percent): sodium chlorate (NaClO 3 )80%, barium peroxide 6% (Ba 2 o 2 ), micron copper oxide (CuO) 10%, kaolin 4%. It takes 68 seconds for the oxygen candle to absorb microwave energy and be heated to produce oxygen by thermal decomposition. Apparently, the presence of kaolin as a binder shortens the microwave exposure time.

Embodiment 3

[0054] In order to increase the microwave power, shorten the action time, and make the microwave field intensity of the whole heater uniform, a microwave device with two power 1500W microwave tubes can be set up, the microwave frequency is 2450±50MHz, and the weight of the oxygen candle is 200g. Pressed into cylindrical shape, diameter 50mm, height 50mm, density 2g / cm 3 . Oxygen candle formula (weight percent): sodium chlorate (NaClO 3 ) 89%, nanoscale copper oxide (CuO) 7%, sodium peroxide (Na 2 o 2 )4%. It takes 55 seconds for the oxygen candle to absorb microwave energy and be heated to produce oxygen by thermal decomposition.

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Abstract

The invention discloses a preparing method of oxygen through microwave heating oxygen candle as well as oxygen candle and microwave device, which comprises the following steps: (1) blending 80-86% chlorate, 4-10% sensitizing catalyst, 0-6% chloride-inhibiting agent and 0-8% adhesive together; pressurizing to prepare oxygen candle with density at 1.5-2g / cm3; (2) placing oxygen candle into microwave device to heat continuously; guiding oxygen from outlet on the microwave device.

Description

technical field [0001] The invention relates to a method for producing oxygen, in particular to a method for producing oxygen by heating an oxygen candle with microwaves, an oxygen candle and a microwave device. Background technique [0002] Since the 1940s, the method of supplying oxygen using oxygen candles based on chlorate has been widely used in the West. Oxygen candles can be divided into two types according to their uses: one is start-up oxygen candles, which are used as start-up devices for superoxide-type self-rescue escape devices. The start-up oxygen candles have short working hours and low oxygen production, and generally only work for 1 minute. , to produce about 6 liters of oxygen in a standard state; the other is an oxygen source oxygen candle for multiple people to breathe, with a long working time and an oxygen production of more than 2000 liters. [0003] At present, there are two main ways to increase the oxygen production of oxygen candles: (1) use chlor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B11/14
Inventor 韩旭
Owner TSINGHUA UNIV
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