摘要:
Process for heat transfer between a solid object and a material layer, including the steps of: a) arranging a heat-discharging surface from a heat-receiving surface at a gap (R) for the flow (4); b) generating a speed difference between the surfaces by providing a relative movement thereof; c) increasing the speed (v1) of the flow (4) in the gap (R) compared to the speed of these surfaces (vH and/or vF) by the speed difference; d) maintaining a turbulent flow (4) in the gap (R) and carrying out the heat transfer by this flow (4). In the apparatus, the heat-receiving surface of the solid object (H) is formed on a structural part, e.g. rotor (2), which is relatively movably arranged in a housing (3) compared to the heat-discharging material layer (F). It is provided with a heat-removing unit and/or a heating unit.
摘要:
An apparatus includes an internal and/or an external multiple-stage cooling device arranged coaxially with a drawing orifice of an extruder die and having multilevel tangential outlets for the coolant to stabilize a non-stabilized section of an expanded foil hose by spiral coolant streams. The internal device includes cooling units arranged at axial distances from each other, surrounding the foil section through a gap. Each cooling unit is connected to a coolant supply of selectively adjustable temperature. The external cooling device includes at least two cooling units arranged at an axial distance from each other, surrounding the foil section through a gap. Each cooling unit is provided with tangential inlets and is connected to a coolant supply to supply the coolant of selectively and individually adjustable temperature and/or volume and/or pressure.
摘要:
A filter for cylindrical of flat filter equipment for the mechanical purification of liquids as described which is assembled of several filter elements (4) arranged one above the other which disclose always gap-shaped filter openings between them and which are fastened by rods led through them and locking flanges. The passage openings for the rods are formed as sleeves (7) to which distance holders (8) belong. The filter elements have trapezoidal cross-section, the outer longer base side (16a) of which, together with the height of a filter opening, make out the height of the sleeve (7).
摘要:
Method and apparatus for accumulating and restituting cold, the apparatus comprising a storage vessel containing a heat-exchanging and cold-accumulating liquid mixed with a mass of rigid aggregates of crystals of frozen liquid, the crystals being obtained by freezing the liquid by atomization of a refrigerating fluid contacted directly by the liquid, means to create during the cold accumulation phase a piston composed of a homogeneous, porous and compact mass of rigid aggregates of crystals of the liquid, means to deposit the crystals evenly on top of the piston, and means to resorb the piston from the top.
摘要:
A method and apparatus for generating, by siphon effect, in a housing containing a cold-accumulating and freezable liquid, a current of liquid in a closed hydraulic circuit, the current of liquid comprising at least one ascending current which is located over means for injecting a refrigerating fluid and which contains bubbles of atomized refrigerating fluid, and at least one descending current free of refrigerating fluid in the gaseous phase.
摘要:
Installation for storing continuously generated cold and for the intermittent release of at least a portion of the stored cold, with a storage container for a mixture of cold water and ice, by a cooling device for delivering ice continuously to the storage container, and with means for removing cold water intermittently from the storage container and for cycling it to an apparatus to be cooled and then for recycling it back to the storage container.