Superheater is the heating surface of overheated water vapor under the boiler to heat the saturated water vapor under a certain pressure in the boiler.In the power station, locomotive and ship boilers, in order to improve the circulating thermal efficiency of the entire steam power device, an overheated device is generally installed.
Design
First, the streaming overheat design pairing pupae consist of a series of snake -shaped steel pipes and two or more sets.The snake -shaped tube is made of seamless steel pipe.The hexer tube is often arranged.The heatinger tube is generally a light tube. This tube has the characteristics of less ash, easy to manufacture, and cheap, but if the smoke speed is low, the heat transfer effect of the light tube is poor.In order to strengthen the heat transfer of flue gas, the tube with a vertical rib or a ribs with a ring -shaped circular rib can be used as the overheat, which can reduce the heating surface and size of the overheated device.
Overheater principle
First, the principle of streaming overheat device Matrix is ??composed of a series of snake -shaped steel pipes and two or more sets.The snake -shaped tube is made of seamless steel pipe.The hexer tube is often arranged.The heatinger tube is generally a light tube. This tube has the characteristics of less ash, easy to manufacture, and cheap, but if the smoke speed is low, the heat transfer effect of the light tube is poor.In order to strengthen the heat transfer of flue gas, the tube with a vertical rib or a ribs with a ring -shaped circular rib can be used as the overheat, which can reduce the heating surface and size of the overheated device.
The role of overheated device
1. The overheat device is a device that heated the saturated steam into an overheating steam with a certain temperature.2. After the saturated steam is heated into overheating steam, the steams ability to work in the steam turbine has improved, that is, the useful drop of the steam in the steam turbine increases, thereby improving the cycle efficiency of the thermal machine.3. In addition, the use of overheating steam can also reduce the humidity of the steam turbines, avoid corrosion of the turbines blades, and create favorable conditions for the steam turbine to further reduce the pressure of steam and operate safely.

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