蒸汽锅炉是一种利用燃料燃烧后释放的热能或工业生产中的余热传递给容器内的水，使水达到所需要的温度（热水）或一定压力蒸汽的热力设备。
它是由“锅”（即蒸汽锅炉本体承压部分）、“炉”（即燃烧设备部分）、附件仪表及附属设备构成的一个完整体。
A steam boiler is a type of thermal equipment that utilizes the heat released from the combustion of fuel or waste heat from industrial production to heat water in a container, reaching the desired temperature (hot water) or producing steam at a certain pressure. It consists of a complete system including the "boiler" (the pressurized part of the steam boiler), the "furnace" (the combustion device part), as well as auxiliary instruments and additional equipment.蒸汽锅炉的工作原理基于将燃料燃烧产生的热能传递给水，使水加热并最终转化为蒸汽。
这个过程主要涉及以下几个步骤：The working principle of a steam boiler is based on transferring the heat energy generated from fuel combustion to water, heating it and ultimately converting it into steam. This process mainly involves the following steps:1.燃料燃烧：在锅炉的燃烧室（炉）中，燃料（如煤、天然气、油、生物质等）被点燃并燃烧，释放出大量的热能。
Fuel Combustion: In the furnace (combustion chamber) of the boiler, fuel (such as coal, natural gas, oil, biomass, etc.) is ignited and burned, releasing a large amount of heat energy.2.热能传递：燃烧产生的热量通过锅炉的受热面（如水管、炉管等）传递给水。
这些受热面通常位于锅炉的“锅”部分。
Heat Transfer: The heat generated from combustion is transferred to the water through the boiler’s heating surfaces (such as water tubes, fire tubes, etc.). These heating surfaces are typically located in the "boiler" part.3.水的加热：水在锅炉内部吸收热量后，温度逐渐升高。
当水温达到沸点时，水开始转化为蒸汽。
Water Heating: The water inside the boiler absorbs heat and its temperature gradually increases. When the water temperature reaches the boiling point, it begins to turn into steam.4.蒸汽的生成：随着热量的持续输入，水不断蒸发，形成蒸汽。
蒸汽在锅炉内部积累，达到一定的压力和温度。
Steam Generation: With the continuous input of heat, water continuously evaporates, forming steam. The steam accumulates within the boiler, reaching a certain pressure and temperature.5.蒸汽的输出：当锅炉内的蒸汽达到设计的额定压力和温度时，可以被引出锅炉，用于各种工业过程或供暖系统。
Steam Output: When the steam inside the boiler reaches the design-rated pressure and temperature, it can be extracted from the boiler for various industrial processes or heating systems.6.循环利用：在蒸汽被引出使用的同时，锅炉内的水循环系统会补充新的水进入锅炉，以维持水位和热能的持续转换。
Recycling: As the steam is extracted and used, the water circulation system in the boiler will replenish new water into the boiler to maintain the water level and continuous conversion of heat energy.蒸汽锅炉在运行中由于水的循环流动，不断地将受热面吸收的热量全部带走，不仅使水升上温或汽化成为蒸汽，而且使受热面得到良好的冷却，从而保证了蒸汽锅炉受热面在高温条件下安全的工作。
During operation, the boiler continuously absorbs the heat from the heating surfaces through the circulating water, not only raising the water temperature or converting it into steam but also ensuring good cooling of the heating surfaces. This guarantees safe operation of the heating surfaces under high-temperature conditions.整个过程中，锅炉的运行需要严格控制，以确保安全和效率。
这包括监控和调节燃料的供应、水的流量、蒸汽的压力和温度等。
同时，为了防止过热和压力过高，锅炉通常配备有安全阀和其他安全装置。
Throughout the process, the operation of the boiler needs to be strictly controlled to ensure safety and efficiency. This includes monitoring and adjusting fuel supply, water flow, steam pressure, and temperature. Additionally, to prevent overheating and excessive pressure, boilers are usually equipped with safety valves and other safety devices.主要参数：1. 额定蒸发量；2. 额定蒸汽压力；3. 额定蒸汽温度Key Parameters:1. Rated evaporation capacity2. Rated steam pressure3. Rated steam temperature关于锅炉参数内容，后续会单独出一篇文章。
Further details on boiler parameters will be covered in a separate article.