company list with boiler in thailand
In operation, the company list with boiler in thailand exhaust gas temperature rise because the heat loss due to heat loss is the largest in a boiler, typically around 6% into the furnace heat, the exhaust gas temperature increasing every 12 ~ 15 ℃, smoke 0.5% increase in heat loss. Therefore, the exhaust gas temperature is one of the most important indicators of boiler operation, must be the focus of monitoring. Several factors has the potential to increase the exhaust gas temperature of the boiler: (1) heating surface slagging, fouling. Whether waterwall slagging furnace fouling, or superheater, convection bank, and economizer preheater heat resistance due to fouling will increase the flue gas side, heat deterioration of the cooling effect of the flue gas becomes difference, resulting in increased exhaust gas temperature. (2) the excess air ratio is too large. Under normal circumstances, the furnace outlet increases as the excess air ratio of the exhaust gas temperature rises. After the excess air ratio increases, while the amount of smoke increases, the speed increase of smoke, heat strengthening of exiled, but less than the degree of increase in heat transfer gas volume increases more. It will be appreciated as the tobacco rate increased, the time to heat to the flue gas working fluid left the heating surface. (3) leakage factor is too large. Tail shaft furnace and boiler flue negative pressure leakage is inevitable, and provides a heating surface allowed leakage coefficient. When the coefficient of air leakage increases, the influence of the exhaust gas temperature is increased and the excess air coefficient is similar. And the closer the leakage furnace, exhaust gas temperature raising effect on the greater. (4) water temperature. When the turbine load is low or high pressure splitting when the heater temperature of the boiler feedwater will decrease. Generally, when the water temperature rises, if the amount of fuel is maintained constant, the temperature difference decreases economizer, economizer heat absorption decreases the exhaust gas temperature rises. (5) the fuel moisture. The fuel in the flue gas to increase the amount of water increases, and therefore the exhaust gas temperature rises. (6) boiler load. Although the boiler load increases, the amount of smoke, the amount of steam to the water, the air amount increases in proportion, but since the furnace exit gas temperature is increased, so that the exhaust gas temperature rises. After the load is increased to increase the furnace outlet temperature, followed by convection heating surface temperature difference increases, an increase in heat absorption, the more so the convection heating surface, the smaller the impact load change of a boiler exhaust gas temperature. (7) The fuel species. When burning low calorific value gas, since the furnace temperature is lowered to reduce the radiation heat transfer in the furnace, the low calorific value gas in a non-combustible components, mainly N2, CO2, H2O more, the amount of flue gas increases, the exhaust gas temperature rise high.
Boiler water treatment method properly, how to solve? There are many business units to be able to save more spending often treated company list with boiler in thailand water will take unscientific methods and tools in boiler water treatment process used, equipment, etc. also do not comply with the relevant provisions, For example, three free, antifouling electronic scale equipment and the like. Speaking from personal interests, this approach not only to minus expenses chemicals can also be removed from water analysis personnel expenses, but not fundamentally solve the problem of boiler scale and corrosion, but not only resulted in a waste of energy also reduces the life of the boiler. Also, if used improperly will play a scale inhibitor for the protection of the boiler opposite effect, accelerate the scaling and corrosion of boilers, to the normal operation of the boiler poses a serious threat. Solution: For the case of improper boiler water treatment method to re-adjust the boiler water treatment, for the use of new technologies to be approved by the relevant departments for the record and to report to the local labor department, before proceeding on a given boiler processing of new technology, if the boiler water treatment to get good results, then the promotion of technical appraisal given by higher authorities after passing the boiler in order to ensure safe use.
4, furnace maintenance methods
In order to make the boiler safe and economic operation lasting, must in daily use, strengthen the maintenance of the boiler, which is to prevent the lower thermal efficiency, an important measure to avoid the use of state of deterioration and boiler accident.
Obtain these honors the nation's largest gas-fired company list with boiler in thailand lab, China's first ultra-low nitrogen boiler FGR, China's first largest shell type boilers are inseparable from the party's determination to quickly adhere to independent innovation and square fast people keep trying. China Industrial Boiler Association statistics show that side quickly clean fuel boiler annual sales amount of the first nation. Last year, the company's sales revenue grew 39%, products in short supply.