Steam generator with integrated dust separator

Details Steam generator with integrated dust separator Steam generator with integrated dust separator

1998-09-16

1999-11-16

Walberg, Teresa

Liquid heaters and vaporizers

Miscellaneous

110245, F22D 100

Patent

active

059838400

ABSTRACT:
The invention relates to a steam generator, which consists of a combustion chamber (1), a radiation part (2) and a convection part (3) and which has at least two vertical gas passes (4, 5) following the combustion chamber (1), in each case with a 180.degree. deflection of the flue gas (12), the combustion chamber (1) and the gas pass (4) being separated from one another by means of a first partition (14) and the two gas passes (4, 5) being separated from one another by means of a second partition (6). It is defined in that the second partition (6) is designed, at its lower end, in such a way that the passage area for the flue gas (12) from the vertical pass (4) with downward flow to the vertical pass (5) with upward flow has a variable value over the width, the passage area being smaller in the middle than on the outside. The secondary flow occurring during deflection is thereby reinforced, in the wall region the vortices of said secondary flow rotating opposite to the direction of the main flow deflection. The discharge of dust is considerably improved in this way.

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