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    • 84. 发明授权
    • HEAT EXCHANGER
    • 热交换器
    • EP0375691B1
    • 1992-11-19
    • EP88905861.6
    • 1988-07-07
    • RACERT OY
    • RAUNIO Pentti
    • F28F3/04F28F13/06
    • F28F3/046F28D9/00F28F3/083Y10S165/394
    • The invention concerns a method of constructing a heat exchanger as well as a heat exchanger constructed in accordance with said method. The method comprises piling of essentially similar corrugated thermal transmission plates (1) to cover each other and connecting the spaces between the plates from their edges to inlet and outlet conduits (5, 6, 7, 8) for the mediums participating in thermal transmission so that through every second space between the plates is passed a flow of heat giving medium and through every second space between the plates a flow of heat receiving medium. Essential to the present invention is that the pressure losses of flows and the thermal transmission coefficient of the exchanger are established by piling the thermal transmission plates (1) one over another so that the grooves (11, 12) in different plates are placed at a selected angle with each other. To make this possible the invention uses essentially circular thermal transmission plates (1) or regular polygonal thermal transmission plates in which the direction of the grooves is such that the grooves in plates piled on top of each other may cross selectively at least in two different angles with each other.
    • 85. 发明公开
    • PLATE EVAPORATOR
    • 板式蒸发器
    • EP0485555A1
    • 1992-05-20
    • EP91909728.0
    • 1991-04-29
    • ALFA-LAVAL THERMAL AB
    • HALLGREN, Leif
    • F28D9B01D1F28F3
    • F28F3/046B01D1/221F28D2021/0066F28F3/083F28F2215/04Y10S165/903
    • Dans un échangeur de chaleur pour l'évaporation Kestner du film d'un fluide, des plaques (1, 2) de transfert de chaleur disposées verticalement délimitent entre elles des passages d'évaporation (4) et des passages de condensation (7). Chaque passage d'évaporation (4) comporte dans sa partie basse une entrée (5) pour le fluide et dans sa partie haute une sortie (6) pour le fluide concentré et la vapeur produite, laquelle sortie (6) est située sur un côté vertical des plaques de transfert de chaleur. Pour obtenir la répartition souhaitée du fluide et de la vapeur dans chaque passage d'évaporation (4), au moins une plaque (1) sur deux, dans sa partie basse (17A) la plus proche de l'entrée (5) du fluide, est munie d'un certain nombre de zones (23A-26A) constituées de crêtes et de gorges formant des cannelures de différents types. Les crêtes et gorges forment différents angles par rapport à la direction principale de circulation du fluide dans les passages d'évaporation (4), lesquels angles sont choisis de façon que les crêtes et gorges des plaques de transfert de chaleur (1, 2), en fonction de leurs orientations différentes, coopèrent pour, dans chaque passage d'évaporation, opposer une résistance au fluide dans sa direction principale de circulation, résistance qui diminue progressivement des côtés verticaux aux autres côtés verticaux des plaques de transfert de chaleur (1, 2). La résistance variable à l'écoulement qui s'applique latéralement aux passages d'évaporation (4) se concentre de préférence sur la partie basse des passages d'évaporation.
    • 在用于Kestner蒸发流体膜的热交换器中,垂直设置的传热板(1,2)在它们之间界定蒸发通道(4)和冷凝通道(7)。 每个蒸发通道(4)在其下部具有用于流体的入口(5)并且在其上部具有用于浓缩流体和所产生的蒸汽的出口(6),该出口(6)位于一侧 垂直传热板。 为了在每个蒸发通道(4)中获得流体和蒸汽的期​​望分布,在其最靠近流体入口(5)的下部(17A)中的两个中的至少一个板(1) 设置有多个区域(23A-26A),所述区域由形成不同类型凹槽的脊和凹槽组成。 脊和凹槽相对于蒸发通道(4)中的流体的主流动方向形成不同的角度,该角度被选择为使得传热板(1,2)的峰和凹槽 根据它们的不同的取向,在每个蒸发通道中配合以抵抗沿其主要循环方向的流体,从传热板(1,2)的垂直侧向垂直侧逐渐减小的阻力 )。 侧向施加到蒸发通道(4)的可变流动阻力优选集中在蒸发通道的下部。
    • 88. 发明授权
    • PLATTENWÄRMEAUSTAUSCHER
    • EP0321480B1
    • 1990-11-07
    • EP87905565.5
    • 1987-08-28
    • FISCHER, Gerhard
    • FISCHER, Gerhard
    • F28F3/08F28D9/00
    • F28F3/046F28D9/005
    • Plate-type heat exchanger, having at least three superimposed heat exchange plates (1, 2), whereby each pair of successive plates (1, 2) forms a through-passage (3, 4). The heat exchange plates (1, 2) consist of sheet metal and, in order to form through-ducts between the plates (1, 2) and to provide mutual support between the latter, are provided with a pressed-in wave pattern which covers the through-passage (3, 4), said pattern forming grooves (9, 10) which run transversely to the wave direction (11) and obliquely to the through-passage centre-line (7). The surface of the wave pattern (5) of each exchange plate consists of a number of mutually-adjacent partial regions (5a, 5c) whereby the grooves (9, 10) form in the individual partial areas (5a, 5c) groove sections (12) running parallel to one another in each group, said sections ending at the limits (14) of said partial area; the groups of the groove sections (12) of different partial areas (5a, 5c) run transversely to one another. Directly facing each partial area (5a, 5c) of the wave pattern (5) of one heat exchange plate (1, 2) is an equally-sized partial area (5a, 5c) of the wave pattern (5) of another heat exchange plate (1, 2) which forms with the first-mentioned plate (1, 2) a through-passage (3, 4). In at least one pair of exchange plates (1, 2) forming mutually a through-passage (3, 4) the wave vertices (17) of one plate (1, 2) are supported, only in the region of the ends (21) of the groove sections (12) of this plate (1, 2), on the wave vertices (18) of the other plate (1, 2) of the pair, and similarly in the region of the ends of the groove sections (12) of said other plate (1, 2), and freely pass over the distance between these support points (20). In particular, the wave vertices (17) of one plate (1, 2) of a pair of plates (1, 2) forming with one another a through-passage (3, 4) are supported by one of their ends on the end of one of the wave vertices (18), facing this plate, of the other plate (1, 2) and by their other end on the end of one of the parallel wave vertices (18), adjacent to the last wave vertex (18), of the other plate (1, 2) and freely pass over the intervening depression in the wave pattern (5) of the other plate (1, 2).
    • 具有至少三个叠置的热交换板(1,2)的板式热交换器,其中每对相继的板(1,2)形成贯通通道(3,4)。 热交换板(1,2)由金属板构成,并且为了形成板(1,2)之间的通道并在其之间提供相互支撑,设置有压入式波形,其覆盖 (3,4),所述图案形成槽(9,10)横向于所述波浪方向(11)延伸并且相对于所述通道中心线(7)倾斜。 每个交换板的波形图案(5)的表面由多个相互相邻的局部区域(5a,5c)组成,由此在各个局部区域(5a,5c)中形成沟槽(9,10) 12)在每个组中彼此平行延伸,所述部分在所述部分区域的极限(14)处结束; 不同局部区域(5a,5c)的凹槽部分(12)的组相互横向延伸。 直接面对一个热交换板(1,2)的波形(5)的每个局部区域(5a,5c)是另一个热交换器(1,2)的波形(5)的等尺寸局部区域(5a,5c) 与所述第一板(1,2)形成通路(3,4)的板(1,2)。 在至少一对相互形成贯通通道(3,4)的交换板(1,2)中,一个板(1,2)的波顶点(17)仅在端部(21)的区域 )在这对板(1,2)的另一个板(1,2)的波顶点(18)上,并且类似地在这些槽部分(12)的端部区域中 所述另一个板(1,2)的一部分(图12)自由地通过这些支撑点(20)之间的距离。 特别地,一对板(1,2)中的一个板(1,2)的一个板(1,2)的波形顶点(17)彼此形成一个通道(3,4),其端部之一在端部 (18)中的一个面向该板的一个波顶点(18),并且通过它们的另一端位于一个平行波顶点(18)的末端上,与最后一个波顶点(18)相邻 )与另一板(1,2)的波形(5)中的中间凹陷自由地通过。