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    Method and apparatus for electrically heating corrosive vapors
    10.
    发明授权
    Method and apparatus for electrically heating corrosive vapors 失效
    电加热腐蚀性蒸气的方法和装置

    公开(公告)号：US4223206A

    公开(公告)日：1980-09-16

    申请号：US872050

    申请日：1978-01-25

    申请人： Anthony Horton ,  Thomas M. McKeon ,  Jack Preston

    发明人： Anthony Horton ,  Thomas M. McKeon ,  Jack Preston

    IPC分类号： C01G23/07 ,  B01D1/00 ,  B01J19/00 ,  B01J19/02 ,  C01G23/02 ,  H05B3/42 ,  F24H3/04 ,  H05B3/02

    CPC分类号： H05B3/42 ,  B01D1/0017 ,  B01J19/02 ,  C01G23/022 ,  B01J2219/0218 ,  B01J2219/0286

    摘要： A heating device for heating corrosive vapours includes a casing defining a vapour flow path having an inlet and an outlet. A tubular metallic electric resistance heating element is disposed in the flow path and arranged such that the vapours being heated successively pass in opposite directions along the interior and exterior of the element in flowing from the inlet to the outlet of the casing. To accomodate thermal expansion and contraction, one end of the element is connected to the casing by means of a flexible coupling there being provision to maintain at least a part of the flexible coupling immersed in a body of an electrically non-conductive liquid capable of shielding the coupling from the corrosive vapours during operation of the device. The non-conductive liquid may be maintained in the liquid state by circulation through a heat exchanger. The heating element may be made, for example, of platinum or a platinum alloy and the flexible coupling, for example, of a braid of such a metal or alloy or of tantalum. Preferably the apparatus is used to preheat titanium tetrachloride vapour for use in the manufacture of titanium dioxide by oxidation thereof. Where titanium tetrachloride vapour is to be heated the non-conductive liquid used is preferably titanium tetrachloride liquid.

    摘要翻译： 用于加热腐蚀性蒸汽的加热装置包括限定具有入口和出口的蒸汽流动路径的壳体。 管状金属电阻加热元件设置在流动路径中并且布置成使得被加热的蒸汽沿元件的内部和外部沿相反方向从入口到出口流动。 为了适应热膨胀和收缩，元件的一端通过柔性联接器连接到壳体，该柔性联接件用于将柔性联接件的至少一部分浸入能够屏蔽的非导电液体的主体中 在设备运行期间与腐蚀性蒸气的耦合。 非导电液体可以通过热交换器循环而保持在液态。 加热元件可以例如由铂或铂合金制成，并且可以例如由诸如这种金属或合金或钽的编织物的柔性耦合制成。 优选地，该装置用于预热用于制造二氧化钛的四氯化钛蒸汽，通过其氧化。 在要加热四氯化钛蒸气的情况下，所用的非导电液体优选为四氯化钛液体。