21 MW Water tube hot water boiler adopts the structure of double longitudinal drums and D-type furnace. Water tube design, the economizer and other auxiliary heating surface are fixed in the rear. The combustor is located on the front wall. The convection tube bank and rear heating surface from the back of the furnace, and then into air through the chimney.
For the double drums longitudinal D-type boiler, the pressure body has a good state of stress. Drums and other important pressure parts won't be radiated and eroded by high temperature flame. Pressure parts, with small thermal stress, can stretch out and draw back freely, and can reach higher safety margin.
Auto protect, long-distance control, safety operation
|Output||21MW water tube hot water boiler|
|Outlet water Temperature||95℃/115℃|
|Rated steam pressure||0.7Mpa/1Mpa/1.25Mpa/1.6Mpa/2.45Mpa|
Notice: As the company's products continue to improve parameters of the above products will be continuously updated page listed for reference only.
In order to improve heat efficiency of the boiler, steel tube economizer or steel finned tube economizer is laid in the back of the boiler body.
As the feed water temperature is high enough and flue gas temperature is still high, air preheater can be installed.
All rear heat recovery surfaces are the independent component, convenient to transport and install.
In short, D-type Water tube hot water boiler is featured by small heat storage, quick start, large load change range, short installation period, reliable operation, and little maintenance. And the matched self control part is of certain flexibility. Therefore, it is the ideal small and medium-capacity boiler popular among customers.
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