摘要:
A cooling system comprises a compressor, a condenser, an expansion valve, and a heat exchanger. The latter comprises a vessel for containing a refrigerant, the vessel having an inner space bounded by a closed surface of a vessel wall, the vessel comprising an inlet and an outlet for transport of refrigerant into and out of the inner space through the vessel wall. A tube is disposed at least partly inside the inner space, wherein a first end of the tube is fixed to a first orifice of the vessel wall and a second end of the tube is fixed to a second orifice of the vessel wall to enable fluid communication into and/or out of the tube through the first orifice and the second orifice. A pressure control means controls a pressure in the inner space based on a target temperature.
摘要:
A turbulence generating device for generating turbulence and vortices in a fluid inside a fluid transfer pipe, which acts as a heat transfer pipe, such that, by increasing the area of contact of the fluid with the pipe and the time of contact, not only sufficient heat exchange and heat radiation are conducted, but alien substances and the like, which accumulate inside the corresponding pipe, can also be removed.
摘要:
In an embodiment, a method of producing a carbonate comprises reacting carbon monoxide and chlorine in a phosgene reactor in the presence of a catalyst to produce a first product comprising phosgene; wherein carbon tetrachloride is present in the first product in an amount of 0 to 10 ppm by volume based on the total volume of phosgene; and reacting a monohydroxy compound with the phosgene to produce the carbonate; wherein the phosgene reactor comprises a tube, a shell, and a space located between the tube and the shell; wherein the tube comprises one or more of a mini-tube section and a second tube section; a first concentric tube concentrically located in the shell; a twisted tube; an internal scaffold; and an external scaffold.
摘要:
A thermal management system includes a plurality of thermal management assemblies. Each of the thermal management assemblies has a monolithic foil structure having a body with an external surface and a differently shaped and opposing internal surface. The external surface forms an outer profile and the internal surface forming an internal conduit with the outer profile and the internal conduit having different shapes. The monolithic foil structure is configured to physically isolate a first fluid flowing along the external surface from a second fluid flowing in the internal conduit. The body is configured to transfer thermal energy between the first fluid flowing along the external surface and the second fluid flowing in the internal conduit.
摘要:
In a seal structure for a heat exchanger, the seal structure being mounted on a baffle plate disposed in a shell included in the heat exchanger and being partially in contact with a wall surface on an inner surface side of the shell, the seal plate is composed of a plurality of thin plates which are laminated; the thin plates are in contact with the wall surface while being curved by an elastic deformation; a contact thin plate serving as one of the thin plates located on an outermost side of the curve is in contact with the wall surface; and an outer surface of the contact thin plate serving as a surface on an outside of the curve among surfaces arranged in a thickness direction of the contact thin plate is in contact with the wall surface so as to restrain seal performance from deteriorating.
摘要:
In a matrix for a heat exchanger to exchange heat between a first fluid and a second fluid, the first fluid being for instance air and the second fluid being for instance oil, the matrix includes a channel for the first fluid, an array of passages for the second fluid, the passages extending in the channel. The array supports at least two cooling fins. The matrix is made by a process of additive manufacturing. The fins are inclined with respect to each other along the direction of the flow of the first fluid. The array defines rectangular corridors for the first fluid.
摘要:
A turbulence generating device for generating turbulence and vortices in a fluid inside a fluid transfer pipe, which acts as a heat transfer pipe, such that, by increasing the area of contact of the fluid with the pipe and the time of contact, not only sufficient heat exchange and heat radiation are conducted, but alien substances and the like, which accumulate inside the corresponding pipe, can also be removed.
摘要:
A heat exchanger includes a plurality of fins spaced apart from each other such that gas flows therebetween, and a plurality of heat transfer tubes extending through the plurality of fins and joined to the plurality of fins by tube expansion. The heat transfer tubes are arranged in five or more columns along a flow direction of the gas and staggered in a row direction intersecting the flow direction of the gas. Each of the plurality of fins is flat and plate-shaped and continuously extends between the heat transfer tubes in the flow direction of the gas. The plurality of heat transfer tubes satisfy relationships of 1.055 D≦Da≦1.068 D and 1.56 Da≦L≦2.58 Da, where D is an unexpanded outside diameter of the heat transfer tubes, Da is an expanded outside diameter thereof, and L is a distance between centers of adjacent two heat transfer tubes.
摘要:
A heat exchanging coil that has at least one straight length of tube and at least one bend in the tube where fins are attached to the tube with unequal fin densities based upon tube orientation, and the fin density is different for straight lengths of tube than at bends in the tube.
摘要:
Heat exchanger comprising at least one pipe bundle (5, 27, 31) for a first fluid, a jacket (1, 17) surrounding said pipe bundle (5, 27, 31), closed at each end by end pieces (2, 23, 24) through which the pipes (5, 27, 31) extend, and with at least one entrance (3, 29, 33) and one exit (4, 30, 32) for a second fluid, with baffle walls (6, 39) between the entrance and exit, perpendicular to the pipes (5, 27, 31), for reversing the direction of flow of the second fluid, whereby said baffle walls leave a passage (10) for said second fluid alternately on one side and the other of the jacket (1, 17), characterised in that the baffle walls (6, 39) are formed by at least one baffle plate (7, 28, 34) and at least one wall (8, 37, 38) extending over part of the inner circumference of the jacket (1, 17) and pointing inwards, to which is connected the outer edge of the baffle plate (7, 28, 34), so that where there is no wall (8, 37, 38), the passage (10) for the second fluid remains open.