The economizer of the boiler is generally arranged in the tail flue, and the flue gas temperature is low. When the industrial boiler is started or operated under low working conditions, it is easy to cause the flue gas temperature to be low, thus causing low-temperature corrosion of the tail heating
In recent years, with the expansion of coal application scope and the enhancement of people's environmental protection awareness, circulating fluidized bed boiler, as a main "clean combustion" device, has been widely used, which shows its strong development momentum. For the selection of wear-resist
In view of this problem, Jiangsu Sifang boiler suggests:1. Vacuumize the kettle to reduce the oxygen content in the steamTry to shorten the time of entering and leaving the material truck; The vacuum shall be evacuated and the vacuum degree shall be properly increased before the steam is introduced.
In view of this problem, Jiangsu Sifang boiler suggests:1) When the distance from the site to the control room is long and the resistance of the connecting wire is large, if the voltage source signal is used for remote transmission, a large error will occur due to the voltage division between the wi
In response to this question, Jiangsu Sifang boiler replied:The PVC valve is mainly opened automatically according to the set pressure when the main steam pressure is high. The function is direct. The superheated steam is directly discharged to the atmosphere without temperature reduction. The metho
Established in 1998, Jiangsu Sifang Boiler Co., Ltd. is the first special equipment manufacturer certified by ASME of China special equipment testing and Research Institute. Through technology guidance, innovation and development, the enterprise has become the leader of China's boiler industry. Boil
The thermal efficiency of the boiler can be calculated by the positive and negative balance methods respectively.1. Positive balance methodThe method of calculating the thermal efficiency by the ratio of the heat used by the boiler to the total heat released by the fuel is called the positive balanc
If the furnace pressure is too low, the air leakage in the furnace and the flue will be intensified, the combustion will deteriorate, the combustion loss will increase, and even the combustion will be unstable until the fire is extinguished; If the furnace pressure is too high, the flame and high-te
① Thermal typeThermal NOx is mainly generated during combustion. Nitrogen in combustion supporting air is oxidized under high-temperature flame. It is mainly generated in the area with temperature higher than 1800K. Temperature, excess air coefficient and residence time in high-temperature zone will
A) phenomenon of economizer damage accident (1) the water level of the drum drops abnormally, the water supply volume increases significantly, and is larger than the steam volume, and the water pressure at the economizer inlet decreases; (2) The exhaust gas temperature decreases and the water temper
NOx generation of natural gas boiler is mainly thermal NOx, which can be controlled by controlling combustion temperature. The main control methods are as follows:A) staged combustionStaged combustion refers to the combustion technology in which the air and fuel required for combustion are fed into
The cracking of smoke pipe is generally caused by insufficient cooling of pipe section. This problem is mainly caused by the following three points, which need to be implemented one by one.① The length of the pipe section protruding from the weld exceeds the standardGB / t16508 shell and tube boiler
