Self-adaptive adjustment anti-explosion programmable logic control (PLC) device for driller room

Abstract

The invention discloses a self-adaptive adjustment anti-explosion programmable logic control (PLC) device for a driller room. A three-phase line is provided with a breaker; the L1 end of the three-phase line is connected with a contact KA1 of an intermediate relay and a project lamp in sequence; the L2 end of the three-phase line is connected with a power switch SB1; a first way of the power switch SB1 is connected with a contact KM of the intermediate relay; a second way of the power switch SB1 is connected with a power switch SB2; the contact KM and the other end of the power switch SB2 are simultaneously connected to one end of a fluorescent lamp; a third way of the power switch SB1 is connected with a PLC cabinet; the PLC cabinet is simultaneously connected with an indoor optical inductor, an outdoor optical inductor and contacts KM, KA1 and KA2 of the intermediate relay; the L3 end of the three-phase line is connected with the contact KA2 of the intermediate relay and a light source in sequence; and the fluorescent lamp, the contacts KM, KA1 and KA2 of the intermediate relay, the project lamp and the light source are simultaneously connected with a zero line end. The self-adaptive adjustment anti-explosion PLC device for the driller room is capable of automatically adjusting brightness according to ambient light changes.

Description

technical field [0001] The invention belongs to the technical field of mechanical manufacturing, and relates to an explosion-proof PLC control device for adaptive adjustment of a driller's room. Background technique [0002] At present, there are two problems in the lighting and display system of the driller's room commonly used on oil drilling rigs, which cause inconvenience to the normal control of the driller: 1) When the brightness inside the room is too much higher than that outside the room, the driller will not be able to see the work outside. (The glass in front of the driller will become a mirror due to the difference in indoor and outdoor brightness); 2) When the sun outside the room shines at a certain angle, the display screen in the room cannot be seen clearly (the display screen in the driller’s room is not vertical backlight placement, but with a certain inclination). The lighting control devices used on existing oil drilling rigs are all manually controlled,...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of self-adaptive adjustment explosion-proof PLC control device of the driller's room, which solves the problem that when the brightness inside the room is too much higher than that outside the room in the prior art, the driller will not be able to see the working conditions outside; The problem that the display screen in the room cannot be seen clearly when it is illuminated from an angle

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