摘要:
A method for removing electrostatically charged particles that are difficult to separate from a gas flow within one or more high-voltage fields, wherein only one high-voltage supply source is used for these high-voltage fields. The flows to be cleaned are successively ionized in an ionizing region and the particles are separated in a separating region within the one or more high-voltage fields, wherein the field strength of the ionizing region is weaker than the field strength of the separating region.
摘要:
A regenerative heat-exchanger is disclosed which has a rotor mounted in an enclosing housing, with separation zones radially disposed between the heat exchange media and configured as peripheral and radial barrier chambers, and stationary peripheral and radial seals which are arranged on hot and cold sides of the rotor.
摘要:
A method for a regenerative heat exchanger for the treatment of pollutant-containing waste gases which are in a heat exchange with another medium. The heat exchanger includes stationary or rotating storage masses which are at least partially of catalytic material and to which a reduction agent is supplied from the hot side thereof. A penetration of the reduction agent into the flue gas flow can be prevented by supplying the reduction agent directly to the catalyst separately from the pollutant-containing waste gases and without coming into contact with the remaining heating surfaces. For this purpose, a nozzle arrangement having at least one arm and extending over the entire radius of the heat exchanger may be arranged in both hood sides of the heat exchanger.
摘要:
An incineration plant includes a heat exchanger arranged in a flue gas flow following a reduction stage for nitrogen oxides and in front of a flue gas dust collector, and a heat transfer medium circuit for absorbing heat from the heat exchanger in the flue gas flow. The heat exchanger is connected to the heat transfer medium circuit such that the heat transfer medium conducted in the circuit is admitted to the heat exchanger. The heat transfer medium circuit has at least one additional heat exchanger for absorbing heat from the heat transfer medium. A feed water preheater is arranged in the heat transfer medium circuit.
摘要:
A thrust or journal bearing which is suitable for use in particular in slow-running machines is intended to have as large as possible a bearing surface with a minimum diameter and at the same time to have optimal running properties and long life in normal operation, as well as good emergency running properties in the event of oil deficiency. Here a base body 2, e.g. a ring or a ring sector, bears sliding shoes 3 disposed in a uniform distribution peripherally and radially, on which is supported a plant bearing surface above a supporting film of lubricant. The sliding shoes 3 have an outline at least approximating to that of a square and are located congruently to each other on predetermined pitch circles d.sub.0, d.sub.1, d.sub.2 . . . d.sub.x of the base body 2. The side length of the sliding shoes 3 increases from the interior to the exterior proportionately to the increase in the pitch circle diameter d.sub.0, d.sub.1, d.sub.2 . . . d.sub.x and the adjacent sliding shoes 3 are in each case delimited from each other by fluted or grooved profiles 7, 7', 7". Two groups 7' and 7" of fluted or grooved profiles 7 run spirally, and the directions of curvature of them are counter to each other. They are preferably in each case in the shape of a logarithmic spiral.
摘要:
Heat-transferring elements for regenerative heat exchange in a gas-gas fluidized bed heat exchanger. The elements are in the form of separate, freely movable saddle-shaped bodies. The saddle-shaped elements may have one or more holes, and may also, or alternatively, have one or more hollow spaces or chambers which are filled entirely or partially with materials of high heat-retaining capacity, and/or with latent storage masses.
摘要:
A regenerative air preheater has a heat-exchange sector plate centered on an axis and formed with a multiplicity of axially throughgoing passages with intake and output heating-gas hoods axially flanking the plate and conduits for passing a heating gas from the intake hood through the plate to the output hood for heating the plate. Intake and output secondary heated-gas hoods each within one of the heating-gas hoods and axially flanking the plate are axially aligned with each other and only cover a portion of the plate. Thus the heating gas can pass through the plate only around the plate portion covered by the secondary hoods. Intake and output primary heated-gas hoods within the respective secondary hoods and axially flanking the plate are axially aligned with each other and only cover a subportion of the plate portion covered by the secondary hoods. Thus the secondary gas will be heated at regions of the plate portion not covered by the primary hoods. A drive rotates the secondary hoods synchronously with each other about the axis in a predetermined rotational sense. Thus the heating gas will heat regions of the plate not covered by the secondary hoods so that when same move into alignment with these heated regions the secondary gas stream will be heated. Portions of the primary hoods can be displaced nonaxially within the respective secondary hoods and to vary the heat-exchange between the primary stream and the plate.
摘要:
A sector plate for a regenerative air preheater has an outer support ring centered on an axis and normally of cylindrical shape, an inner support ring centered on the axis, and a plurality of radially extending walls lying generally in axial planes and having outer ends fixed to the outer ring and inner ends and guided on the inner ring. A plurality of angularly extending and radially spaced annular walls extend between the radial walls and form therewith axially throughgoing passages. Thus when hot gases flow in one axial direction through the passages they thermally deform the radial walls so that their ends move into a position at an angle to each other. The ring is thermally deformed to a taper equal to twice the angle for holding the inner ends of the radial walls and the inner ring in the axially level with the outer ring when hot gases flow through the passages. The radial walls are normally--that is when of uniform temperature all over--planar and also rectangular, and the outer ring is similarly normally cylindrical. When the radial walls deform to become arcuate with their ends lying at a predetermined angle to the axis rather than parallel thereto, the outer ring is deformed to be frustoconical, flaring upstream relative to the gas-flow direction, so that the inner ends of the radial walls, while not parallel to the axis, are in the same axial position relative to the outer ring.