The offshore axial fan consists of a wind collector, an impeller, a vane and a diffuser. At present, the installation of the axial flow fan is a switch control, which cannot be automatically controlled according to the indoor temperature, and must be manually controlled by the duty person.
Most of the well group platforms are unattended platforms. The previous installation mode can not meet the ventilation cooling requirements of the transformer room, high voltage distribution room and low voltage distribution room. The reasons are as follows:
(1) The platform staff cannot periodically operate the axial flow fan. The platform is now unattended, that is, the inspection time is not regular, so it is impossible to run the axial fan regularly. Normal ventilation and cooling are not guaranteed every day.
(2) The damage of electrical equipment caused by dust and moisture is also very serious. The ventilation method of the previous blinds has been sealed due to dust and water leakage, which has increased the airtightness of the room and another reason for the indoor temperature to become higher. .
(3) According to the long-term operating temperature of electrical equipment, the current carrying capacity of the cable is reduced by about 10% at 25 °C to 15 °C. If the temperature of the cable is higher, the current carrying capacity of the cable is reduced more, which will overload many cables and other equipment. . The high temperature above 40 °C is seriously destructive to the insulation of the equipment, especially the internal insulation aging speed of the marine cable is accelerated.
(4) There is an axial fan installed in the offshore platform. There is only air exhaust, no air inlet passage, and no air convection. The unreasonable installation makes it impossible to achieve the effect of exhaust air cooling.
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