Free supervisory inspection principles and characteristics of small steam hot water central heating boiler for hotel as the country increasingly stringent security checks on special equipment, many users are in for acceptance steam boiler to worry about, then there a boiler inspection and acceptance does not require it? The answer is yes, this is the free acceptance boiler steam boiler, supervisory inspector now free to receive more and more small steam boiler users of all ages, so check the small steam boiler-free monitoring What are the principles and characteristics of it? Then we explain for everyone. First small steam boiler uses a very broad, such as industry, food processing, school canteens, washing rooms, hospital disinfection, hotels, district heating, etc., there are coal, oil and gas heating, where coal-fired steam boilers currently in my company alone this one domestic production, steam boilers do not build a separate boiler room, small size, light weight, easy to move, can be placed in the basement, roof, etc., the Boilermakers do not need to operate licensed fireman, replacing every year dealing with government departments, small steam boiler-free acceptance than conventional boiler safety, this boiler will not explode, it is composed of a coil, burning very fast start, whether it is coal, oil or gas to ensure 3 minutes to a steam, does not require inspection and monitoring of the subject. Overpressure, over-temperature combustion, water and other multiple protection, ultra-safe, non-explosive, can greatly reduce the burden on the user.
To support employee innovation, the company took out more than 5% of sales each year for technical innovation and product transformation, and the establishment of the Innovation Award and a special incentive fund, for practical gizmos and patented the invention of employees monthly reward. Today, the company has obtained 107 national patents.
Boiler is how the classification? Press export steam parameters of how to classify? Classification of the hot water central heating boiler for hotel is very extensive concept from different angles have different classification, can be classified by application area, according to the export media classification, but also by the pressure of the boiler classification. If the classification parameters according to the steam outlet, then find out which parameters steam boiler, wherein the boiler comprises evaporation, steam pressure, steam temperature etc., and is classified according to the main points of the outlet steam pressure: low pressure boiler (P <2.5MPa ), pressure in the boiler (22.5
In the national standard of water quality standard, the water quality index of hot water hot water central heating boiler for hotel stipulates that the total hardness of water supply for chemical treatment outside furnace is less than 0.6 mmol / L. In recent years, in order to reduce the operating cost of heating units, some hot water gas-fired steam boilers have been overloaded due to the use of class Ⅲ bituminous coal as fuel instead of class Ⅱ bituminous coal designed to replace the designed type Ⅱ bituminous coal. During the maintenance in summer, it is found that the overloading boiler water wall tube fouling problem is more prominent, some boilers even occur tube burst accident. Why is heating hot water boiler overloaded, scale and even burst tube? Because the calorific value of class Ⅲ bituminous coal is higher, the type Ⅲ bituminous coal of the same weight is burned instead of the designed class Ⅱ bituminous coal. Bituminous coal increases the circulation of boiler riser is not absolute equilibrium, the geometric difference of riser and the heat load are different, so there is inevitably the deviation of flow rate between the risers. Due to the overloading operation of the boiler, some riser tubes are easy to overheat boiling because the flow rate is small, and the wall temperature is higher than the designed wall temperature, so that the scale and even the tube burst are easy to occur. How to prevent the boiler from scaling when overloaded? The heating hot water boiler operates under overload because of the scaling after the superheated boiling. Steam is produced in the process of superheated boiling. The water quality requirement of gas steam boiler is less than 0.03 mmol / L, which is much lower than that of hot water boiler. Water quality requirements. Based on the above reasons, the feed water hardness of heating hot water boiler is reduced, and the scaling phenomenon is eliminated by reducing 0.6mmol/L to 0.03mmol/L.
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