Why doesn't the Olympic torch go out in the wind and rain, so that it can't go out underwater?

The torch design of Beijing Olympic Games has strong China characteristics. Its modeling design comes from the traditional paper scroll in China, and the visual effect of lacquer red originated from the Han Dynasty is very eye-catching. The fuel used by the torch is propane, which will not pollute the environment and keep burning under the condition of strong wind of 65 kilometers per hour and heavy rain of 50 millimeters per hour.

Xiangyun was inspired by China paper scrolls.

The torch of Beijing Olympic Games is 72 cm long and weighs 985 grams. The contrasting colors of red and silver produce striking visual effects, which is beneficial to various forms of media communication. The torch is divided into upper and lower parts, the auspicious cloud pattern and the three-dimensional relief process design make the whole torch elegant and gorgeous, with rich connotations.

The creative inspiration of "Xiangyun" pattern comes from "original symbiosis and harmonious integration". The cultural concept of Xiangyun has a time span of several thousand years in China, and it is a representative cultural symbol of China. The design of the torch was inspired by the traditional paper roll in China. Paper is one of the four great inventions in China. It spread to the west through the Silk Road, and human civilization spread with the appearance of paper.

Aluminum alloy and hollow plastic parts are very light.

The torch of Beijing Olympic Games is designed with lightweight and high-quality aluminum alloy and hollow plastic parts, which is very light, recyclable and environmentally friendly. The torch of Beijing Olympic Games is a product independently designed and developed by China, which has complete intellectual property rights.

The lower part of the torch is red and held by the torchbearer. The Beijing Olympic torch creatively uses rubber leather coatings. The touch of this paint surface is close to human skin. When the torchbearer holds the torch of the Beijing Olympic Games, he will no longer feel the cold metal texture, but seems to hold each other's hands tightly. The use of rubber leather paint also solves the problem of smooth and slippery metal surface.

Propane will not pollute the environment after combustion.

The fuel used for the torch of Beijing Olympic Games is propane, which is a cheap common fuel. Combustion time15min, flame height 25-30cm at zero wind speed. Its main components are carbon and hydrogen. After burning, there are only carbon dioxide and water, and there are no other substances, which will not pollute the environment.

It is understood that the flame color of propane gas combustion is bright yellow, which is convenient for identification, TV broadcast and news photography.

The combustion stability and adaptability of the torch to the external environment have reached a new technical height, and it can keep burning under the conditions of strong wind with a speed of 65 kilometers per hour and rainstorm with a speed of 50 millimeters.

The regeneration tube heats the fuel to generate pressure.

The flare combustion system consists of three parts: burner, pressure stabilizer and gas storage tank. It is the first time in the design of the Olympic torch that the burner adopts an innovative dual-flame scheme, namely the pre-combustion chamber and the main combustion chamber.

When the outside temperature is as low as -20 degrees Celsius, the atmospheric pressure generated by propane fuel is only 2. Under such low atmospheric pressure, how to ensure that the torch's energy supply is continuous? The pressure stabilizing valve and the heat return pipe will solve this problem. The heat pipe used in the torch of Beijing Olympic Games is to heat the fuel by using the heat generated by the torch burning, so that the fuel tank can generate enough pressure to support the torch burning without external heating devices.