An active cooling device for power devices in an explosion-proof box

Abstract

The invention discloses an initiative heat dissipation device for a power device in an anti-explosion box. The initiative heat dissipation device comprises an in-box radiator arranged in the closed anti-explosion box and an external radiator arranged outside the closed anti-explosion box, the in-box radiator is tightly attached to a heating surface of the power device in the closed anti-explosionbox, and a U-shaped heat exchange liquid circulation pipe is arranged in the in-box radiator; the two ends of the heat exchange liquid circulation pipe are connected with the two ends of a U-shaped external heat exchange liquid circulation pipe in the external radiator through circulation hoses, an in-box radiator temperature sensor of the in-box radiator is connected with a heat dissipation device controller through a signal cable, and an external anti-explosion fan which is arranged outside the closed anti-explosion box is connected to the heat dissipation device controller through an external anti-explosion fan cable. The problem is solved that in the prior art, heat generated by the large-power device in the anti-explosion closed box in the site of an oil field cannot be diffused in time or transmitted out of the box, and accordingly the device is frequently burnt due to overheating.

Description

technical field [0001] The invention belongs to the technical field of petroleum drilling equipment control, and relates to an active cooling device for power devices in an explosion-proof box. Background technique [0002] In the field of oil drilling and production equipment, with the continuous improvement of energy saving, environmental protection, high efficiency and other requirements, mechanical and hydraulic drive methods are gradually being replaced by electric drives. As we all know, during the working process of electronic devices, part of the energy will be converted into heat energy, which will be released by the heat dissipation on the surface of the device, such as: IGBT, thyristor, servo driver, stepper motor driver, etc. For general application environments, heat sinks or fans can be used to dissipate heat away, and high-power devices can be dissipated by air conditioning or water cooling. But these are only for non-airtight cabinets, where the air in the c...

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Problems solved by technology

[0004] The purpose of the present invention is to provide an active cooling device for power devices in an explosion-proof box, which solves the problem in the prior art that the heat generated by high-power devices in an explosion-proof airtight box in an oil field cannot be diffused in time and cannot be transferred outside the box. The problem of frequent burnout of devices due to overheating

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