boiler operator interview questions
Poor water quality adverse effect on the industrial boiler operator interview questions water quality caused by adverse negative impact on the industrial boiler caused by (1) the formation of scale. Most likely to form a variety of adverse water quality scale, this will affect the performance of industrial boilers. The reason for the formation of scale, mainly because the steam can release a lot of energy, which energy is transferred to the water, if poor water quality, the boiler heating surface will therefore have a scale, whereby the thermal conductivity will reduce the boiler, the boiler energy consumption greatly increased. The size of the thermal conductivity can be used to measure the thermal conductivity of the object, the thermal conductivity of the scale will be a lot lower than the thermal conductivity of steel, which will definitely affect the thermal conductivity of industrial boilers. (2) boiler corrosion. Poor water quality can also lead to corrosion problems boiler. Especially waterwall, economizer and other metal parts of the drum will thus deformed more weak, and even the formation of leakage, destroy the original structure, reducing the strength of the metal. In this case, the boiler corrosion problems increasingly serious about the safety of the boiler severely affected, can not function properly. Boiler heating surface there will be metal corrosion products, which is more likely to lead to more serious quality problems boiler. Under the scale, cracks, leaks and other problems emerge, a number of difficult to effectively remove debris, clogging pipes, greatly enhance the difficulty of maintenance of the boiler. In addition, during maintenance, due to difficult, it takes more time and effort, improve maintenance costs. (3) induced accidents. Due to poor water quality-induced accidents abound. According to statistics, the scale accidents caused by condensation caused by about 20%. After the accident, the device will not only suffer losses, but also cause great risk to the personal safety of staff. Therefore, to reduce accidents, improve economic efficiency, on the need to strengthen water boiler.
steam boiler operator interview questions fittings and accessories
A steam boiler refers to an industrial boiler that heats water to a certain parameter and produces high-temperature steam. The water is heated into steam in the drum, and the heat is emitted from the furnace, which is the principle of the steam boiler. The steam boiler belongs to special equipment. The design, processing, manufacture, installation and use of the boiler must be supervised by the technical supervision department. The user can only use the steam boiler if he obtains the boiler use certificate.
Definition and high-pressure boiler operator interview questions pressure boiler? First of all we need to know that the two pressure boiler is completely different definitions, because the high-pressure boiler in the category of industrial boilers, power station boilers, of course, belongs to pressure boiler equipment, boilers and pressure has always been without pressure, a pressure , a no pressure, in fact, is not contrasting, but also very necessary as we reiterate types of boilers distinguished by boiler pressure.
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