Process for evaporating a solution and an evaporator for use in the process
    2.
    发明授权
    Process for evaporating a solution and an evaporator for use in the process 失效
    用于蒸发溶液和蒸发器的方法用于该方法

    公开(公告)号:US06966974B1

    公开(公告)日:2005-11-22

    申请号:US09937904

    申请日:2000-03-31

    IPC分类号: B01D1/00 B01D1/22 B01D3/00

    摘要: The invention relates to a method for evaporating a solution and an evaporator applied to it. The evaporator (1) has parallel plate heat exchanger elements (3) fitted inside a jacket (2), consisting of a flexible plastic film, for example, and a liquid distribution space (4) common to the elements, from where the solution to be evaporated can be spread, through supply channels (6), on the heat transmission surfaces (4) of the elements to run from the top downwards. The solution (10) that has not evaporated on the surfaces is recycled from the bottom of the evaporator back to the liquid distribution space, and from there to the heat transmission surfaces (4) of the elements for re-evaporation. In connection with evaporation, precipitate is separated from the solution as a result of over-saturation, ending up in the recirculation flow with the solution and being separated from the solution in the liquid distribution space (14) that works as a separator for the precipitate. The recirculation flow is fed into the space (14) so that the precipitate in it is separated under the effect of its weight and/or kinetic energy, while the flow of the solution is directed upwards, ending up in the supply channels (6) leading to the heat transmission surfaces (4) of the elements. The space (14) can consist of an elongated duct, the flow being fed to its end from a downward curving recirculation line, or the space can consist of a trough, which is provided with lamellas (16) or a perforated intermediate bottom, which separate the precipitate.

    摘要翻译: 本发明涉及一种蒸发溶液和蒸发器的方法。 蒸发器(1)具有装配在护套(2)内部的平行板式换热器元件(3),其由例如柔性塑料膜和元件共同的液体分配空间(4)组成, 蒸发可以通过供应通道(6)传播,在元件的传热表面(4)上从顶部向下运动。 在表面上没有蒸发的溶液(10)从蒸发器的底部回流到液体分配空间,并从那里再循环到用于再蒸发的元件的传热表面(4)上。 与蒸发有关,由于过度饱和,沉淀物与溶液分离,最后在溶液的再循环流中,并与作为沉淀分离器的液体分配空间(14)中的溶液分离。 。 再循环流被输送到空间14中,使得其中的沉淀物在其重量和/或动能的作用下被分离,同时溶液的流动向上指向,最终在供给通道(6)中, 导致元件的传热表面(4)。 空间(14)可以由细长的管道组成,该流体从向下的弯曲再循环管线输送到其端部,或者该空间可由槽形成,槽设有薄片(16)或穿孔的中间底部, 分离沉淀。

    Heat exchanger and a method for producing the same
    3.
    发明授权
    Heat exchanger and a method for producing the same 失效
    热交换器及其制造方法

    公开(公告)号:US5927383A

    公开(公告)日:1999-07-27

    申请号:US51261

    申请日:1998-04-03

    CPC分类号: B01D1/22 F28D3/00

    摘要: The method relates to a film heat exchanger and a method for constructing the same. The heat exchanger comprises bags (1) made of film material in order to transfer heat from the steam to be condensated inside the bags to the liquid to be evaporated on the outer surfaces (18) thereof, as well as feed channel arrays for distributing steam (10) and liquid onto the internal and external heat transfer surfaces of the bags. According to the invention, inside the top end (2) of each bag (1), there is provided an essentially straight strip (11) bordering the steam channels (10), to which strip the bag is fastened; in connection with the fastening, the top edge of the bag is pulled straight by bending the bag, so that the middle part of the bag is raised in relation to the sides (12) thereof, and the thus straightened edge is then attached to the strip provided inside the bag. Respectively, the bottom edge (3) of the bag can be cut to be upwardly concave and fastened, after straightening, to a strip (15) fitted inside the bottom end of the bag, and comprising condensate removal channels (14). When straightening the top and bottom edges (2, 3) of the bag, there are created horizontal folds (13) in the film material, which folds serve as an inflation margin while pressurizing the bag.

    摘要翻译: PCT No.PCT / FI96 / 00519 Sec。 371日期:1998年4月3日 102(e)1998年4月3日PCT PCT 1996年10月2日PCT公布。 公开号WO97 / 13112 PCT 日期1997年04月10日该方法涉及薄膜热交换器及其构造方法。 热交换器包括由薄膜材料制成的袋(1),以便将热量从袋内的冷凝蒸汽传递到待蒸发的液体在其外表面(18)上,以及用于分配蒸汽的进料通道阵列 (10)和液体到袋的内部和外部传热表面上。 根据本发明,在每个袋(1)的顶端(2)的内部,提供了与蒸汽通道(10)接合的基本上直的条带(11),袋子被紧固到该条带上; 与紧固相关联,袋的顶部边缘通过弯曲袋被拉直,从而袋子的中间部分相对于其侧面(12)升高,然后这样矫正的边缘被附着到 在袋内设置的条。 分别地,袋的底部边缘(3)可以被切割成向上凹入并且在矫直之后被固定到安装在袋的底端内​​部的条带(15),并且包括冷凝物去除通道(14)。 当矫正袋的顶部和底部边缘(2,3)时,在薄膜材料中产生水平折叠(13),折叠用作充气边缘,同时对袋加压。

    Liquid distributor for an evaporator
    4.
    发明授权
    Liquid distributor for an evaporator 失效
    用于蒸发器的液体分配器

    公开(公告)号:US5904807A

    公开(公告)日:1999-05-18

    申请号:US809775

    申请日:1997-05-29

    摘要: A liquid distributor in an evaporator, intended in particular for the evaporation treatment of liquid suspensions which contain fibers or other such solid ingredients. The distributor comprises, located at the upper end of the heat exchange surface, a transverse frame, liquid conduits disposed therein distributing the liquid over the entire width of the heat exchange surface. According to the invention the liquid conduits are made up of feed conduits slanted obliquely downwards and of distribution conduits branching out therefrom and leading to the heat exchange surface. At the branching points of the conduits their wall surfaces on the downstream side with respect to the feed flow are rounded into curved dividing surfaces by means of which the dividing of the flow is carried out. Respectively the branching points on the upstream side with respect to the feed flow are equipped with sharp feeding tips in such a manner that the flow will travel in the feed conduit in a cascade-like manner over the feeding tips to the dividing surfaces, which will cause a division of the flow substantially equally among the distribution conduits.

    摘要翻译: PCT No.PCT / FI95 / 00524 Sec。 371日期1997年5月29日 102(e)日期1997年5月29日PCT提交1995年9月26日PCT公布。 公开号WO96 / 09872 日期1996年4月4日蒸发器中的液体分配器,特别用于蒸发处理含有纤维或其它固体成分的液体悬浮液。 分配器包括位于热交换表面的上端的横向框架,设置在其中的液体导管将液体分配在热交换表面的整个宽度上。 根据本发明,液体管道由倾斜向下倾斜的进料管道和从其分支出的分配导管组成并导致热交换表面。 在导管的分支点处,其相对于进料流的下游侧的壁表面被倒圆成弯曲的分割表面,通过该分隔表面进行流动的分割。 分别相对于进料流的上游侧的分支点装配有尖锐的进料尖端,使得流动在进料管道中以类似级联的方式在进料尖端上行进到分离表面, 导致流体在分配管道中基本相等的分配。

    Liquid distributor for evaporator
    5.
    发明授权
    Liquid distributor for evaporator 失效
    蒸发器液体分配器

    公开(公告)号:US6068730A

    公开(公告)日:2000-05-30

    申请号:US029053

    申请日:1998-07-17

    摘要: A liquid distributor for distributing liquid over the heat transfer surface of an evaporator includes a channel array including one or more supply channels and downwardly deviating distribution channels. Each distribution channel has a step-shaped expansion located downstream with respect to the supply channel and connecting therewith via a sharp point, restricting the liquid suction created in the distribution channel. Sharp points provided in the supply channel or channels further restrict the liquid suction.

    摘要翻译: PCT No.PCT / FI96 / 00449 Sec。 371日期:1998年7月17日 102(e)日期1998年7月17日PCT 1996年8月21日PCT PCT。 公开号WO97 / 07867 日期1997年3月6日用于在蒸发器的传热表面上分配液体的液体分配器包括包括一个或多个供应通道和向下偏离的分配通道的通道阵列。 每个分配通道具有相对于供应通道下游的阶梯形膨胀,并且经由尖锐点与其连接,限制在分配通道中产生的液体吸力。 供应通道或通道中提供的尖锐点进一步限制了液体吸力。

    Heat exchanger
    6.
    发明授权
    Heat exchanger 失效
    热交换器

    公开(公告)号:US5775410A

    公开(公告)日:1998-07-07

    申请号:US809794

    申请日:1997-05-29

    摘要: The invention relates to a heat exchanger wherein the heating vapor is fed onto heat exchange surfaces of membrane material from a vapor distributor, the vapor distributor having parallel conduits for directing vapor over the entire width of the surfaces. According to the invention the vapor distributor is made up of two opposing wall elements which are fastened to each other by means of projections in one element and corresponding recesses in the other element. The upper end of the membrane constituting the heat exchange surface is locked between the projections and recesses that are fastened to each other. Thus, pleats are produced in the membrane as an expansion leeway for the vapor space delimited by the membrane. The heat exchange surfaces may be formed into bags, the ends of which are fastened between the interlinked wall elements in such a manner that the vapor conduits delimited by the elements will direct heating vapor to the inside of the bags and the liquid conduits will direct liquid to be evaporated onto the outer surfaces of the bags.

    摘要翻译: PCT No.PCT / FI95 / 00525 Sec。 371日期1997年5月29日 102(e)日期1997年5月29日PCT提交1995年9月26日PCT公布。 公开号WO96 / 09871 日期1996年4月4日本发明涉及一种热交换器,其中将加热蒸气从蒸气分配器供给到膜材料的热交换表面上,该蒸气分配器具有用于在整个表面宽度上引导蒸气的平行导管。 根据本发明,蒸汽分配器由两个相对的壁元件组成,这两个壁元件通过一个元件中的突起和另一个元件中的相应凹部彼此紧固。 构成热交换表面的膜的上端被锁定在彼此紧固的突起和凹部之间。 因此,在膜中产生褶皱作为由膜限定的蒸气空间的膨胀余地。 热交换表面可以形成为袋,其端部以这样的方式紧固在互连的壁元件之间,使得由元件界定的蒸汽导管将加热蒸气引导到袋的内部,并且液体导管将引导液体 被蒸发到袋的外表面上。

    Heat exchange for a film heat exchanger and a method for manufacturing the same
    7.
    发明授权
    Heat exchange for a film heat exchanger and a method for manufacturing the same 有权
    薄膜热交换器的热交换器及其制造方法

    公开(公告)号:US06547000B1

    公开(公告)日:2003-04-15

    申请号:US09341855

    申请日:2000-11-28

    IPC分类号: F28F314

    摘要: The invention relates to a heat exchange element (1) for a film heat exchanger intended for distillation or for the evaporation of solutions or suspensions, and to a method for manufacturing the same. The substantially bag-like element is formed by bonding from oppositely positioned plastic heat exchange films (2), evaporation of liquid taking place on the exterior surfaces of the films and condensing of the obtained vapor taking place on the interior surfaces. In the bonding the interior (4) of the element is divided into ducts to direct the travel of the vapor, and according to the invention the films are at the same time stretched in the intervals between the bonding points (3) in order to provide leeway for bulging during the pressurization of the interior of the element. The element (1) may be made up of two heat exchange films (2) stretched by means of heat and a pressure differential between the different sides of the film, the films being bonded directly to each other, or there being bonded, between the heat exchange films to be stretched, one or more straight support films to improve the loadbearing capacity of the element.

    摘要翻译: 本发明涉及一种用于蒸发或蒸发溶液或悬浮液的薄膜热交换器的热交换元件(1)及其制造方法。 通过从相对定位的塑料热交换膜(2)的接合形成基本上的袋状元件,在膜的外表面上发生液体的蒸发,并将所获得的蒸气冷凝在内表面上。 在接合中,元件的内部(4)被分成管道以引导蒸汽的行进,并且根据本发明,膜在同时在粘合点(3)之间的间隔中被拉伸,以便提供 在元件内部加压期间膨胀的余地。 元件(1)可以由两个通过加热拉伸的热交换膜(2)和膜的不同侧之间的压力差组成,膜被直接接合在一起,或者粘合在 要拉伸的热交换膜,一个或多个直的支撑膜,以提高元件的承载能力。

    Heat exchange element and a heat exchanger made up of the same
    8.
    发明授权
    Heat exchange element and a heat exchanger made up of the same 有权
    热交换元件和由其组成的热交换器

    公开(公告)号:US06241010B1

    公开(公告)日:2001-06-05

    申请号:US09355097

    申请日:1999-09-23

    IPC分类号: F28D304

    摘要: The invention relates to a heat exchange element (1) which is made up of a bag of a film material, such as plastic film, and to a heat exchanger made up of such heat exchange elements, the heat exchanger being suitable, for example, for the evaporation of effluents which contain solid matter, such as effluents from bleaching. The transfer of heat takes place in the bags (1) from a vapor condensing in the interior (3) of the bags to a liquid evaporating on their exterior surfaces (2). The forming evaporated vapor may be recycled via a compressor to the interior of the bags as heating vapor so that the heat exchanger will function as a distillation apparatus. According to the invention there is bonded inside the bag (1) a planar condensate-removal member, substantially narrower than the bag, for example, a circular disc (9) to which the forming condensate is arranged to flow and in which there is formed a hole (13) and at least one condensate outlet duct (8) leading to it, the film material of the bag being pierced in the area of the hole on each side of the condensate-removal member. In the heat exchanger, which has oppositely positioned bags (9) tied to form a pack, the condensate-removal members (9) are located one against another, and the apertures pierced in the film material form a condensate-collection duct common to them. The condensate-removal members being narrower than the bags enables the solid matter from the suspension being evaporated to be removed by falling through the spaces between the bottoms (10) of adjacent bags.

    摘要翻译: 本发明涉及一种由诸如塑料膜的薄膜材料袋组成的热交换元件(1)和由这种热交换元件组成的热交换器,该热交换器适用于例如, 用于蒸发含有固体物质的污水,例如来自漂白的废水。 在袋(1)中,从袋子内部(3)中冷凝的蒸汽到在其外表面(2)上蒸发的液体发生热量转移。 形成的蒸发蒸气可以通过压缩机再循环到袋的内部作为加热蒸气,使得热交换器将用作蒸馏装置。 根据本发明,粘合在袋(1)内的基本上比袋子窄的平面冷凝物去除构件,例如圆形盘(9),成形冷凝物布置成形成在其中形成 一个孔(13)和至少一个通向其的冷凝物出口管道(8),袋子的薄膜材料被刺穿在冷凝物去除构件的每一侧的孔的区域中。 在具有相对定位的袋(9)的热交换器中,所述袋(9)被捆绑以形成包装,所述冷凝物去除构件(9)彼此相对定位,并且在膜材料中刺穿的孔形成与它们共同的冷凝物收集管 。 冷凝物去除构件比袋子窄,使得悬浮液中的固体物质被蒸发掉,通过掉落在相邻袋子的底部(10)之间的空间中。

    HEAT EXCHANGE ELEMENT, A HEAT EXCHANGER COMPRISING THE ELEMENTS, AND AN EQUIPMENT FOR THE MANUFACTURE OF THE ELEMENTS
    9.
    发明申请
    HEAT EXCHANGE ELEMENT, A HEAT EXCHANGER COMPRISING THE ELEMENTS, AND AN EQUIPMENT FOR THE MANUFACTURE OF THE ELEMENTS 有权
    热交换元件,包含元件的热交换器以及元件的制造设备

    公开(公告)号:US20130146226A1

    公开(公告)日:2013-06-13

    申请号:US13583025

    申请日:2010-03-08

    IPC分类号: F28D9/00

    摘要: A heat exchange element of flexible plastic film, a heat exchanger including such elements, and apparatus for manufacturing the elements are described. The element includes a pair of opposite film sheets bonded by welds to form an expandable bag with inside and outside heat exchange surfaces, an inlet opening for supplying a pressurized heat exchange fluid to the bag, an outlet opening for discharging the fluid from the bag after heat exchange, and an array of welds defining routes for fluid flow inside the bag. There are spot welds in a first zone of the element, parallel extended welds in a second zone of the element, defining fluid flow channels through the second zone, and oblique welds in a third zone of the element, defining channels for fluid flow towards the outlet opening. The heat exchanger includes a pack of adjacent elements for heat exchange between a pressurized first fluid.

    摘要翻译: 描述了柔性塑料膜的热交换元件,包括这些元件的热交换器以及用于制造元件的装置。 该元件包括一对相对的薄膜片,通过焊缝粘合以形成具有内部和外部热交换表面的可膨胀袋,用于向袋提供加压热交换流体的入口,用于从袋中排出流体的出口 热交换器,以及定义用于袋内流体流动的路线的焊接阵列。 在元件的第一区域中存在点焊,在元件的第二区域中平行延伸的焊缝,限定穿过第二区域的流体流动通道,以及在元件的第三区域中的斜焊缝,限定流体向着 出口开口。 热交换器包括一组相邻的元件,用于在加压的第一流体之间进行热交换。