摘要:
Изобретение относится к нагревательной технике и может быть использовано в области нефтепереработки и нефтехимии для нагрева нефти, нефтепродуктов и других углеводородных смесей. Камера сгорания, с которой соединена горелка, сообщена с камерой теплообмена, в которой расположены продуктовые трубы. Горелка включает газовые стволы и воздуховод с выходными отверстиями на торцах, обращенных в сторону камеры. Концы газовых стволов размещены в камере сгорания вокруг выходного отверстия воздуховода, а на выходе воздуховода в камере сгорания установлен завихритель воздушного потока. Продуктовые трубы представляют собой трубчатый теплообменник с поперечно обтекаемым пучком труб. При этом в коллекторах трубчатого теплообменника установлены перегородки с образованием последовательно-параллельной схемы соединения труб, позволяющей увеличить скорость продукта и предотвратить коксование в случае нагрева нефти и нефтепродуктов. Полнота сгорания топлива обеспечивается за счет интенсивного перемешивания газа и выходящего из воздуховода топлива с помощью завихрителя, что в результате приводит к более интенсивному нагреву жидкости в теплообменнике и к увеличению мощности печи при малых габаритах и массе.
摘要:
L'invention concerne un module de batterie (1), notamment pour véhicule automobile, comprenant un empilement de cellules (3) électrochimiques et un échangeur thermique (5). Selon l'invention, l'échangeur thermique (5) comprend : - une pluralité d'éléments d'échange thermique (13), entre lesquels est positionnée au moins une cellule (3) électrochimique en contact thermique et mécanique contre au moins un élément d'échange thermique (13), et - une pluralité de canaux (15) de circulation d'un fluide caloporteur assemblés mécaniquement aux éléments d'échange thermique (13). L'invention concerne aussi un échangeur thermique (5) pour un tel module de batterie (1).
摘要:
The present disclosure relates to a paver employing hybrid heat exchange for heating a screed assembly towed by a tractor. The present disclosure discloses a paver employing hybrid heat exchange, the paver having a screed assembly for paving asphalt on the road, characterized by comprising: a first heat exchanger for transmitting heat discharged from an exhaust gas after treatment system of a diesel engine mounted in a tractor to a heat exchange medium; a first feed line connected to the first heat exchanger to supply the heat exchange medium; a heating apparatus connected to the first feed line to heat the heat exchange medium passing through the first heat exchanger to reach a predetermined temperature; a second feed line in communication with the first feed line to supply the heat exchange medium passing through the heating apparatus; a second heat exchanger installed in one side of a screed plate equipped in the screed assembly and transmitting heat of the heat exchange medium, which is supplied through the second feed line, to the screed plate; a return line connected to the second heat exchanger to return the heat exchange medium to the first heat exchanger; and a pump installed in the return line to circulate the heat exchange medium in the direction of the first heat exchanger.
摘要:
The invention relates to the electric power industry and may be used in horizontal steam generators of nuclear power plants having a water-cooled, water-modified reactor. Claimed is a primary loop coolant reservoir for a steam generator, which has a horizontal heat exchange bundle with U-shaped tubes and is in the form of a welded, thick-walled vessel having: a perforated middle cylindrical portion capable of having installed and secured therein a bundle of U-shaped heat-exchange tubes which are formed into packets and are separated, within the bundle, by vertical inter-tube corridors; a lower cylindrical portion, capable of being welded to a fitting on the steam generator housing; and an upper cylindrical portion, having a tapered transition to a flanged connection between an access port and a cover. Wherein, apertures for securing the heat-exchange tubes are provided in the middle cylindrical portion of the reservoir, in a checkerboard pattern, in such a way that the horizontal distance between the edges of neighboring apertures on the inner surface of the reservoir is at least 5.5 millimeters. The technical result of the invention consists in providing for the strength of connectors between apertures in a reservoir wall.
摘要:
A heat exchange system comprises at least one object (6; 6'; 7; 8) to be heated or cooled, and a heat exchanger (4). The heat exchanger is connected to the at least one object via a pipe (9)and is also connected to a heat source or a cooling source. The object comprises at least one compartment (3, 13) which is fluidly connected to the heat exchanger(4) via the pipe (9), and the compartment is configured to accommodate a gas; and there is no circulation pump between the heater and the compartment. The object may be a step in a staircase, a walkway/deck element or a cargo deck element. A plurality of objects may be fluidly interconnected. The system is particularly useful as a de-icing system on a marine vessel. Other applications are possible, both on-shore and offshore. If the heat exchanger is connected to a cooling source, the compartments will work as a cooling element, by virtue of the gas-filled, closed volume.
摘要:
Disclosed herein is an article including a path that extends across at least a portion of a surface of the article, the path being defined by at least one channel that traverses at least a portion of the surface or a first plurality of spaced features disposed on or in at least a portion of the surface; the spaced features arranged in a plurality of groupings; the groupings of features comprising repeat units; the spaced features within a grouping being spaced apart at an average distance of about 1 nanometer to about 500 micrometers to define a path that traverses the plurality of spaced features; each feature having a surface that is substantially parallel to a surface on a neighboring feature; each feature being separated from its neighboring feature; the groupings of features being arranged with respect to one another so as to define a tortuous pathway.
摘要:
A stave comprising an outer housing, an inner pipe circuit comprising individual pipes housed within the outer housing, wherein the individual pipes each has an inlet end and an outlet end and wherein each pipe may or may not be mechanically connected to another pipe, and a manifold, integral with or disposed on or in the housing; wherein the inlet and/or outlet ends of each individual pipe is disposed in or housed by the manifold. The manifold may be made of carbon steel while the housing may be made of copper. Each of the inlet and outlet ends of each individual pipe may be surrounded in part by cast copper within a housing of the manifold.