5, subcritical pressure boiler
Outlet steam pressure of the boiler 15.7-19.6MPa. According to China's current power plant boiler parameters Series, subcritical pressure boiler outlet steam pressure is defined as 16.7MPa, outlet steam temperature of 540 ℃ or 555 ℃, a small number of 570 ℃.
Obtain these honors the nation's largest gas-fired boiler 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.
Boiler commissioning sequence deviations four is what means: For boilers, in addition to those related to the previous knowledge of the contents, do I need to continue to learn to go? The problem, from the degree of learning has now reached a point of view, the answer is yes. So, then, without further ado, to proceed immediately to continue to study and work on the boiler, so we can learn a new harvest, and to make their own progress. 1. Cold and hot commissioning of the boiler, which is generally carried out first? On the boiler, cold and hot commissioning it, is necessary to carry out the work. For cold commissioning thereof, in general, under the boiler without heating, its debugging. And at the same time, see line valve leaks, electrical controls and the like are normal. And hot commissioning, debug is running the boiler at the time of heating, mainly for practical observation debugging parameters. Thus, to sum up, in the boiler, a first cold state debugger, and then the hot commissioning. If, cold debugging a problem, then that can not be hot commissioning, the problem must first be solved.
Forced circulation boiler water or steam only in the difference in density between water and steam as the driving force, and requires a certain power to the pump is circulated in the heating duct. Forced circulation oven due to the good water circulation, speed requirements of Sheung Shui is very low; the working pressure is generally more large, high boiler tube material and wall requirements. Forced circulation boiler drum is no longer necessary, you can have the drum, the drum can not; but for a higher pump head requirements, power consumption is greater. When the pump stops running, the pot of water flow is stopped, the need for a reliable way to prevent moisture pot of water hammer.
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