Water evaporation process
    1.
    发明授权
    Water evaporation process 失效
    水蒸发过程

    公开(公告)号:EP0034920B1

    公开(公告)日:1984-09-26

    申请号:EP81300686.3

    申请日:1981-02-19

    摘要: An energy-efficient water evaporation process uses a falling film evaporator having a plurality of substantially vertical and equidistant heat exchange elements made of a synthetic polymeric material. Each evaporating surface is in contact with a liquid spreading means, and each heat exchange element is heated by steam having a condensation temperature slightly higher than the boiling point of the aqueous solution from which water is being evaporated. Steam formed by evaporation of water either is recompressed and reintroduced as heating steam in a single-stage process or is used as heating steam for another stage, operating at a lower temperature and pressure, in a multistage process. Heating steam condenses to fresh water, which is recovered. This process is operated at a low feed rate, preferably below 45 Kg of incoming aqueous solution per linear meter of horizontal width of each evaporating surface, and is capable of providing a 50% fresh water recovery per pass from sea water. Higher recoveries are possible in the case of brackish waters and various industrial waters. The process is useful in water desalination and purification.

    Thermoplastic heat exchanger element and heat exchanger comprising said element
    2.
    发明公开
    Thermoplastic heat exchanger element and heat exchanger comprising said element 失效
    热塑性换热器元件和包含标准元件的热交换器

    公开(公告)号:EP0018823A3

    公开(公告)日:1981-01-07

    申请号:EP80301414

    申请日:1980-04-30

    IPC分类号: F28F21/06 F28F03/12

    摘要: A thermoplastic heat exchanger which comprises individual elements made of two sheets of thermoplastic film sealed together at the edges of the sheets, either directly or with edge septa, there being protuberances extending from one of the sheets toward the second sheet and which may join to the second sheet. Optionally, the interior of the element may be divided into a plurality of channels by channel septa joined to both sheets. Two openings in the element provide access to the interior of the element for introduction and removal of a first fluid to and from the inside of the element. The device is adapted to exchange heat between the firstfluid conducted within the sheets and a second fluid in contact with the exterior faces of the sheets.

    Fluid heater and process of heating a fluid
    3.
    发明公开
    Fluid heater and process of heating a fluid 失效
    Flüssigkeitserhitzer和Verfahren zum Erhitzen einerFlüssigkeit。

    公开(公告)号:EP0018824A1

    公开(公告)日:1980-11-12

    申请号:EP80301415.8

    申请日:1980-04-30

    IPC分类号: F24H1/10 F28F21/06

    CPC分类号: F28F21/065 F24H1/107

    摘要: A high efficiency heater for air or water is disclosed in which the combustion products from a flame are forced through water in a contacting device (10) in a manner to transfer aimost all of the useable heat of the combustion products to the water, and to heat the water to a temperature of about 50 to 85°C. The cooled waste gases are vented to the atmosphere, and the heated water is passed through a heat exchanger (14) to heat air or water such as for a home heating system. As the heated water passed from the contacting device (10) to the heat exchanger (14) is at a temperature below the normal boiling point of water, a plastic heat exchanger can be used, which is low enough in costto permit using a large unit for maximum heat utilization.

    摘要翻译: 公开了一种用于空气或水的高效率加热器,其中来自火焰的燃烧产物以接触装置(10)中的水强迫通过水,以将燃烧产物的几乎所有可用的热量转移到水中,并且 将水加热到约50至85℃的温度。将冷却的废气排放到大气中,并将加热的水通过热交换器(14)以加热空气或水,例如用于家庭加热系统。 当从接触装置(10)流到热交换器(14)的加热水的温度低于水的正常沸点时,可以使用塑料热交换器,其成本低到允许使用大的 最大热利用单位。

    Water evaporation process
    5.
    发明公开
    Water evaporation process 失效
    一种用于水的蒸发方法。

    公开(公告)号:EP0034920A1

    公开(公告)日:1981-09-02

    申请号:EP81300686.3

    申请日:1981-02-19

    摘要: An energy-efficient water evaporation process uses a falling film evaporator (5) having a plurality of substantially vertical and equidistant heat exchange elements made of a synthetic polymeric material. Each evaporating surface is in contact with a liquid spreading means, and each heat exchange element is heated by steam (5) having a condensation temperature slightly higher than the boiling point of the aqueous solution from which water is being evaporated. Steam formed by evaporation of water either is recompressed (8) and reintroduced as heating steam in a single-stage process or is used as heating steam for another stage, operating at a lower temperature and pressure, in a multistage process. Heating steam condenses to fresh water, (10) which is recovered. This process is operated at a low feed rate, preferably below45 Kg of incoming aqueous solution per linear meter of horizontal width of each evaporating surface, and is capable of providing a 50% fresh water recovery per pass from sea water. Higher recoveries are possible in the case of brackish waters and various industrial waters. The process is useful in water desalination and purification.

    Thermoplastic heat exchanger
    6.
    发明公开
    Thermoplastic heat exchanger 失效
    热塑塑料瓦斯

    公开(公告)号:EP0018823A2

    公开(公告)日:1980-11-12

    申请号:EP80301414.1

    申请日:1980-04-30

    IPC分类号: F28F21/06 F28F3/12

    摘要: A thermoplastic heat exchanger which comprises individual elements made of two sheets of thermoplastic film sealed together at the edges of the sheets, either directly or with edge septa, there being protuberances extending from one of the sheets toward the second sheet and which may join to the second sheet. Optionally, the interior of the element may be divided into a plurality of channels by channel septa joined to both sheets. Two openings in the element provide access to the interior of the element for introduction and removal of a first fluid to and from the inside of the element. The device is adapted to exchange heat between the firstfluid conducted within the sheets and a second fluid in contact with the exterior faces of the sheets.

    摘要翻译: 一种热塑性热交换器,其包括由片材边缘密封在一起的两片热塑性薄膜制成的单独元件,直接或具有边缘隔片,其中突出物从片材中的一个朝向第二片材延伸,并且可以连接到 第二张。 可选地,元件的内部可以通过连接到两个片材的通道隔片分成多个通道。 元件中的两个开口提供了进入元件内部的通道,用于将元件的内部引入和移出第一流体。 该装置适于在片材内传导的第一流体和与片材的外表面接触的第二流体之间进行热交换。