The cylinder body of CFB steam boiler is made of Q245R steel plate, and the head is made of the same kind of steel plate. The bituminous coal steam boilers is provided with a maintenance manhole at both ends of the drum head. In order to prevent the low temperature water supply from directly contacting with the high temperature cylinder wall, the water supply pipe adopts the casing structure. The center line of the normal water level of the boiler is at the center line of the drum.
This series of CFB boiler drum is equipped with two high reading water level gauges, an electric contact water level gauge and a balance vessel for automatic water level control. In order to improve the quality of steam and reduce the salt concentration of furnace water, a continuous sewage pipe and a denting pipe for water treatment in the furnace are installed on the drum, and the continuous sewage discharge rate is 2%. DHL series boiler is a single tube horizontal water tube bulk boiler. Combustion equipment adopts not flake type grate, the boiler adopts the “Π” type is decorated, decorate in the horizontal flue convection heating surface, the boiler tail arrangement pole economizer.
DHL series CFB steam boiler running drum is provided with a baffle plate, the drum is divided into two parts. Drum water supply is introduced from the back of the drum, and the water is evenly sent to the large diameter concentrated drop pipe located on both sides of the drum through the water distribution pipe. The bituminous coal steam boilers water is heated by the heating surface, and the soda mixture enters the outlet collection box of the heating surface (the upper collection box). Here, the water vapor is initially separated, and the steam is led through the steam outlet pipe to the collecting pipe located in the steam space on the upper part of the drum. The pot water is introduced into the upper collection box on the side wall on both sides of the boiler. A part of the pot water flows back to the drum to participate in the next round of circulation. The other part flows into the two descending tubes at the back of the boiler, and is distributed to the lower collection box on the heating surface. The separated steam is introduced into the back of the drum through the steam collecting pipe, and moves on both sides of the drum. It flows into the first half of the drum at both ends of the drum. After further separation by the corrugated plate separator at the upper part of the drum, the steam is led out of the steam pipe in the middle of the drum.
Tubular air preheater is arranged at the tail of bituminous coal boiler. Furnace water wall is natural circulation and economizer water circulation is forced flow. Boiler bulk form factory, site assembly. This type of boiler product has sufficient output, high thermal efficiency; Coal adaptability is strong; Safe and reliable, good smoke and dust removal. Widely used in cogeneration of heat and power and people’s life central heating.
The bituminous coal steam boilers single drum transverse arrangement of forced circulation coal fired boiler. The water wall tube in the furnace adopts the whole membrane wall structure, good sealing and high heat preservation performance. This series of boiler coal widely used, high thermal efficiency, internal dust removal effect is good, set in the furnace dust removal device, reduce the original boiler smoke emissions. Zozen Boilers has rich boiler production experience, strong technical force, professional R & D team, can customize boiler service according to user requirements, welcome to consult and purchase.
[…] The bituminous coal steam boilers single drum transverse arrangement of forced circulation coal fired boiler. […]