The distinction between atmospheric pressure and pressure boilers.
In industrial production and daily life, boilers are a common and important piece of equipment. However, according to their characteristics and uses, boilers can be divided into two types: atmospheric boilers and pressure boilers. These two types of boilers have some distinct differences in use, characteristics, and operation. Below, we'll dive into the main differences between these two types of boilers.
First of all, the biggest difference between atmospheric boilers and pressure boilers is their working pressure. The internal pressure of the atmospheric boiler is close to the atmospheric pressure when it is running, i.e., about 01 megapascal. Pressure boilers, on the other hand, are capable of generating higher pressures internally, usually in excess of 01 megapascal, sometimes even tens of megapascals. This difference in pressure places different demands on the design, manufacture, and operation of boilers.
Due to the high pressures experienced inside a pressure boiler, its design, manufacturing, and material selection all need to meet higher strength and pressure requirements. In contrast, atmospheric boilers have more relaxed requirements in these aspects. This is also why the cost of pressure boilers is usually higher than that of atmospheric boilers.
In addition, there are significant differences in the operation of the two boilers due to the different working pressures. Atmospheric boilers usually operate openly, which means that the water can be circulated naturally or with the help of auxiliary equipment after heating. Pressure boilers, on the other hand, need to adopt a closed operation mode, that is, the water is forcibly circulated through external pressure. This difference in the way they operate also affects the efficiency and safety of the two boilers.
In addition to the above basic differences, atmospheric and pressure boilers are also different in the use occasions. Atmospheric boilers are often used for small heating, hot water**, etc., because of its low pressure and relatively simple operation. Pressure boilers, on the other hand, are more used in industrial processes, such as chemicals, pharmaceuticals and other fields, because these fields require higher pressure and temperature conditions.
In addition, in terms of operation and maintenance, atmospheric boilers and pressure boilers are also different due to the difference in working pressure. Atmospheric boilers usually do not require special pressure control equipment and are relatively simple to operate. Pressure boilers, on the other hand, need to be equipped with corresponding pressure control equipment to ensure safe operation. In terms of maintenance, due to the high pressure on the pressure boiler, its maintenance requirements are also relatively high.
To sum up, there are significant differences between atmospheric boilers and pressure boilers in terms of working pressure, design and manufacturing, operation mode, use occasions and operation and maintenance. Understanding these differences can help to better select and use the type of boiler that suits your specific needs. In industrial production and daily life, choosing the right boiler type according to actual needs can not only improve efficiency, but also ensure safety and economic efficiency.