Chiyoda Seiki (President: Yoshihiro Taniguchi) developed a new CO2 vaporizer which employs a direct heating system by electric heater instead of hot water to heat the pipe of heat exchanger. 　

In general, CO2 vaporizers adopt a system to evaporate gas by heating the coil-formed line of heat exchanger through the hot water heated by an electric heater provided in the water tank. However, it is inevitable to cause corrosion of the copper pipeline which is immersed in water all the time, and even if voluntary safety checks are implemented once a year, it is necessary to repair or replace the parts in 7 to 10 years. It has turned out to be a burden for both manufacturers and users.

The new type of vaporizer developed by Chiyoda Seiki is provided with a few units of electric heater and a system to heat the coil directly, keeping the thermal efficiency as it is, so that the structure excluding the heating tank has been realized. With the heat-exchange component having a vaporing capacity of 50kg/h as one bloc, according to the number of blocs, four lineups (50, 100, 150 and 200kg) are available.

As the product is now being monitored in the own and other plants, it is not known when it is launched into the market. However, just like the conventional small-sized vaporizer, we guess it will be sold mainly to welding factories. The company told that it would determine the timing to launch into the market while seeking to reduce costs by enhancement of production efficiency.