After the boiler superheater tube leak cut off, why in the vicinity of the superheater tube is easy to over-temperature? Superheater tube weld leakage or damage due to overheating the superheater tube leak, except in special circumstances, welding or inability to replace the entire root large workload, the approach generally taken damage superheater tubes the two sealed cut . Damage to the superheater tubes because there is no cooling steam, due to severe overheat quickly broken off, so that between two adjacent rows of superheater tubes form a larger flow cross-section a so-called "corridor smoke." Flue gas flow corridor less resistance, high flue gas velocity, so that improved heat transfer coefficient of the exiled fireside; the presence of the flue gas flue gas corridors radiating layer thickness increases, radiation heat transfer coefficient is improved. Since the main thermal resistance of the heat transfer tube side of the superheater in the flue gas, the flue gas side heat transfer coefficient is improved necessarily superheater flue pipe corridor on both sides of heat absorption increases. Superheater absorption heat increases, not only the temperature difference between the wall and the vapor temperature was raised and steam is increased, so that the superheater tube wall temperature of the flue gas on both sides of the corridor significantly increased.
This is because the low-load operation, the boiler efficiency will be reduced. We recommend that the actual running load thermal efficiency of the boiler should not be less than 50%.
Guangdong good gas hot water boiler Which companies? At present, the domestic hot water boiler gas suppliers have their own advantages, depending on the load. People do not need to ask questions to determine whether the gas hot water boiler in question. ? What is included in the following professional standards for everyone to detailed analysis by the Henan fast boiler, with a look: In general, in order to accurately choose our gas hot water boiler, should be aware of the following issues: First, the gas the thermal efficiency of the boiler water; two, gas hot water boiler starts output speed; third, the rated load of the gas hot water boiler; four navigation, gas hot water boiler
In recent years, the country frequent boiler explosion hurts. In order to boiler explosion hazard within the city limits of strangled in the cradle, Tongxiang City, Zhejiang Province Environmental Protection Bureau began efforts to expand the investigation and remediation action on the bathroom boiler.
To strictly implement the ban on burning district requirements, to further improve the quality of urban environment, improve ecological satisfaction, since mid-February this year, Tongxiang City, four environmental protection will be co-related units Indus streets, to carry out this major investigation large heating boilers campaigns, decided to launch a big investigation on urban use hot water bath, foot bath shops, hotels and other business, the use of high-polluting fuel combustion zone ban on large renovation of heating boilers, continuous efforts to fight the "battle of the sky" .
According to preliminary statistics, the use of hot water units to provide services related to nearly 100 within the city limits, as of now, the investigation related to environmental protection has four units of 65, found that the use of biomass boilers 6 sets, 1 small coal-fired boiler units, diesel 1 small boiler units.
According to the investigation objectives edge side of remediation, environmental protection and the use of four pairs of high-polluting fuel boilers Daihatsu small bathroom has been ordered to stop using it immediately; the use of biomass boilers units of gold Water Cube, has been ordered to make corrections, use clean energy heating or hot water outsourced way.
"After a major renovation a few years ago, the small coal-fired boilers have been basically eliminated banned, but there are still dynamic changes and new heating boilers. Next, we will continue to carry out large investigation heating boilers, within city limits investigation and implementation of full coverage, and we will also carry out rectification 'look back', initially planned to be completed this major investigation big campaigns before the end of April. "Zhu Yaming, director of environmental protection four said Tongxiang three cadres of the Conference" seven action "mobilization meeting sounded the full implementation of" urban quality improvement action "horn, as" beautiful Tongxiang "vanguard construction, environmental protection and ecological environment people will be" two upgrade two down "as the goal, create beautiful ecological upgrade urban quality, Tongxiang boost economic and social development of high quality, is to make people's lives better and make unremitting efforts.