Control system of down-hole hydraulic valve and equipment thereof

Abstract

The invention discloses a downhole hydraulic pressure valve control system, which is arranged on the opening and closing location of large-caliber pipeline valve inside the coal mines; wherein, the hydraulic system comprises a hydraulic station (3), an oil outlet pipeline (6), an oil inlet pipeline (7), a manual stop valve (9), a solenoid directional control valve (2) and a hydraulic control valve (1); the solenoid directional control valve (2) is connected with the hydraulic control valve (1) which is arranged on the controlled process pipe through pipeline; the solenoid directional control valve (2) is connected with the valve control PLC (4); the valve control PLC (4) is connected with the switch control cabinet (10) and connected with the water pump (5) through the switch control cabinet (10); the water pump (5) is connected with the controlled process pipe. The downhole hydraulic pressure valve control system has the advantages of being suitable for a plurality of pipeline valves with caliber larger than DN50, realizing the remote control under the prescribed procedure by controlled valve according to control technological requirements, and realizing the remote opening and closing under the condition that the valve is submerged in the water.

Description

technical field [0001] The invention belongs to a valve control system, and in particular relates to a hydraulic valve control system and equipment for opening large-diameter valves in coal mines. Background technique [0002] At present, most of the large-diameter valves in underground coal mines in China cannot be remotely controlled because there is no relevant control equipment. The main reason is that the underground safety regulations of coal mines require explosion-proof and intrinsically safe requirements for directly controlled equipment. With the improvement of the degree of automation in coal mines, more and more coal mines require the realization of unmanned on-duty systems, which put forward requirements for the automatic opening of related large-diameter valves. At present, there are only electronically controlled large-diameter valves in China. Explosion-proof certification, no MA certification for coal mine systems, and the voltage level does not match the or...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the large-diameter valves in underground coal mines in China cannot realize remote control because there is no relevant control equipment, mainly because the coal mine underground safety regulations require explosion-proof and intrinsically safe requirements for directly controlled equipment.

With the improvement of the degree of automation in coal mines, more and more coal mines require the realization of unmanned on-duty systems, which put forward requirements for the automatic opening of related large-diameter valves. At present, there are only electronically controlled large-diameter valves in China. Explosion-proof certification, no MA certification for coal mine systems, and the voltage level does not match the original voltage submitted for review, the reliability is also relatively poor underground, and cannot be used for underground control systems

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