The world ocean engineering and science and technology development presented by the marine development technology and equipment continues to progress, and promote the comprehensive development and utilization of marine resources, marine energy development and utilization has become an important pillar of the development of various marine countries, and the development of marine biological resources has been the world's competition hotspot, marine pollution control and prevention has been the height of the international community's attention, the sea and land associated engineering and technology in the modern development of the sea plays an Sea and land related engineering and technology play a more and more important role in modern ocean development. So in the ocean engineering using electric heat tracing system need to pay attention to what? Youyu answer for you one by one.

               Firstly, the pipeline three-dimensional drawing should be provided by the piping profession, and the pipeline which needs heating cable should be drawn into the continuous electric heating cable pipeline system schematic drawing according to the classification of different process systems.
　　        Secondly, before selecting and designing, the following parameters must be determined first:
　　        1、Environmental conditions: the installation of winter and summer lower and higher temperature for how much.
　　        2、the installation of laying situation: whether installed in flammable and explosive places, belong to several types of explosion-proof places; is installed indoors or outdoors, outdoors, how much the wind speed; installation place whether there is corrosive gas (liquid) body.


                  3、the nature of the medium in the pipeline; pipeline is what material; medium required process temperature of the upper limit and lower limit of how many degrees.
　　           4、the media pipeline: pipeline length; pipeline materials; pipeline accessories (valves, elbows, flanges, brackets, etc.) the number of.
　　           5、insulation status: what kind of insulation material to be used; the thickness of the insulation layer for how much.
　　           After the above parameters are determined, it can begin to accompany the tropical selection calculation, calculate the heat loss Qv (W / m). The purpose is to make the heat generation of electric heating cable tape is greater than Qv, so as to compensate for its heat loss.
　　          In the marine engineering considering the complexity of the actual environment, so the electric accompanied by the tropical corrosion resistance and the design process of the insulation layer higher requirements.