A plate heat exchanger includes a first plate having a first heat transfer region through which a first fluid flows, a first inlet into which the first fluid flows, and a first discharge portion through which the first fluid is discharged, and a second plate having a second heat transfer region through which a second fluid flows, a second inlet into which the second fluid flows, and a second discharge portion through which the second fluid is discharged, and stacked on the first plate. The first plate further includes a flat portion disposed to surround the first inlet portion, and the flat portion has an asymmetrical shape with respect to the first inlet.

A heat exchanger includes a plurality of fins each having an opening formed in an upper portion thereof and an opening formed in a lower portion thereof to allow a refrigerant to flow and being provided therein with a flow path through which the refrigerant flows, the plurality of fins being arranged at intervals in one direction; and a header formed at each of the upper portions and lower portions of the plurality of fins, the header being in communication with the flow path. At least one fin, among the plurality of fins, is configured such that at least one of the opening in the upper portion and the opening in the lower portion is closed.

The present invention relates to a gasket arrangement for sealing between two corrugated heat transfer plates of a plate heat exchanger. The heat transfer plates each comprising a pair of port holes. The gasket arrangement comprising an annular sealing part being arranged to enclose the pair of portholes of the heat transfer plates and define a flow path between the port holes of the pair of port holes. The gasket arrangement further comprising an attachment part connected to an inside of the annular sealing part and extending in an inwards direction relative to the annular sealing part. The attachment part defining a gasket attachment surface arranged to attach by an adhesive to a corresponding plate attachment surface of one of the heat transfer plates.

A heat dissipation device includes a heat dissipation piece, heat conduction plates, a rod piece and a switch. The heat conduction plates are connected to the heat dissipation piece and spaced apart from and arranged parallel to each other so as to define accommodating spaces. Each heat conduction plate has a free end away from the heat dissipation piece, and the free end has a through hole. The rod piece has a first end and a second end opposite to each other, the rod piece penetrates through the through holes, and the second end has a limitation portion. The switch has a cam portion pivoted to the first end. When the switch is pivoted with respect to the heat conduction plates, the cam portion drives the rod piece to move among the through holes, making the limitation portion to press against or be separated from the heat conduction plates.

A heat exchanger and a manufacturing method therefor. The heat exchanger comprises a plurality of working fluid channel sheets (1) stacked in the 0-Z direction. The working fluid channel sheets (1) each comprise an inlet (2), an outlet (3), and a heat exchange region (4) located between the inlet (2) and the outlet (3): the heat exchange regions (4) are provided with a plurality of microstructures (5) formed by stamping; center points of the microstructures (5) on adjacent working fluid channel sheets (1) are aligned in the 0-XY direction, and the shape of the microstructures (5) on adjacent working fluid channel sheets (1) are different. In the present invention, a part of a region of each microstructure (5) does not correspond to a recess in the adjacent working fluid channel sheet (1) and overlaps a region on a periphery of the recess, thereby realizing atomic diffusion bonding.

Potentially off-grid grain conditioners that can be operably connected to an aeration grain bin or silo to blow heated air through the crop to dry the crop or to blow ambient temperature air through the crop to cool it are disclosed. A fan is powered by a motor that may be mounted inside the air stream to allow the heat from the motor to be collected and forced into the airstream that is blown into the grain bin. The engine exhaust may be routed through an air exchanger to remove heat from the exhaust and direct heat into the grain bin, or the exhaust may be put into the atmosphere without capturing any of the heat, which allows the fan to operate in a cooling mode. The motor may be mounted inline or mounted to the side for a centrifugal aeration fan.

A heat exchanger includes a first plate and a second plate, the first plate includes a first base plate and first protrusions, and the second plate includes a second base plate and second protrusions, where the first base plate has a thickness of H1, the first protrusion has a height of h1, where 0.2?H1/h1?1; the second base plate has a thickness of H2, the second protrusion has a height of h2, where 0.2?H2/h2?1; the thickness of a first protrusion top portion is less than that of a first protrusion side portion; the thickness of a second protrusion top portion is less than that of a second protrusion side portion; and the first protrusion top portion is fixed to the second protrusion top portion.

A plate heat exchanger that includes a first, second, and third heat-exchange compartment is disclosed. The heat-exchange compartments include circulation paths in which heat-transfer fluids circulate. The heat-exchange compartments are fluidly connected to allow the heat-transfer fluids to circulate between them. The first and second heat-exchange compartments are stacked. The first and third heat-exchange compartments are arranged side by side.

The invention relates to a condenser of stacked plate design, having a first flow channel for a refrigerant and a second flow channel for a coolant, wherein a plurality of plate elements is provided, which form channels adjacent to each other between the plate elements when the plate elements are stacked on top of each other.

Process for depositing a corrosion-protection coating on at least one portion of the surfaces of a metallic substrate having at least one cavity with an equivalent diameter e.sub.mm<2 mm and a length/width ratio of greater than 150, using an aqueous suspension comprising powder of the metal to be deposited on the substrate combined with an agent for protecting the surface of the metal powder, a diluent, and at least one additive, the particles of the suspension each having an equivalent diameter d such that de.sub.mm/10.