Automatic Control System of Sand Mixer

Abstract

The invention discloses an automatic control system of a fracturing blender truck. The automatic control system comprises a display control panel, a controller, a data acquisition system and a control actuator. The data acquisition system comprises a mixing cylinder liquid level sensor, a discharge pressure sensor, a sand density sensor and an additive density sensor; the control actuator includes a suction hydraulic motor, a manifold exhaust hydraulic motor, a sand inlet hydraulic motor and an additive hydraulic motor, oil ports of the four hydraulic motors are communicated with a hydraulic pump through an electromagnetic valve; and the controller is, through a line, connected with the display control panel, the electromagnetic valve, the mixing cylinder liquid level sensor, the discharge pressure sensor, the sand density sensor and the additive density sensor. The beneficial effects of the invention are that: the automatic control system and the method of the fracturing blender truck are suitable for various harsh environment conditions, and are simple in operation and reliable in performance; the automatic control operation reduces the labor intensity of workers and improves the work efficiency; the real-time collection and analysis of all data are realized; the control is accurate, highly efficient, greatly real-time; and the safety of operators is guaranteed.

Description

technical field [0001] The invention relates to the technical field of petroleum drilling equipment, in particular to an automatic control system of a sand mixing vehicle and a control method thereof. Background technique [0002] The sand mixing truck is mainly used to uniformly mix the liquid, proppant, and additives in a certain proportion during sand fracturing operations. It is conceivable that the sand mixing truck in construction sends fracturing fluids with different sand ratios and viscosities to the motor at a certain pressure for fracturing. Fracturing operation, used for fracturing and acidizing construction operations of large and medium-sized oil wells. The existing sand mixing vehicles have the problems of untimely and incomplete collection of production data and imperfect automatic control functions. The existing control system has a short transmission distance and little transmission data, so it cannot observe and monitor the on-site working conditions in t...

AI Technical Summary

Problems solved by technology

The existing control system has a short transmission distance and little transmission data, so it cannot observe and monitor the on-site working conditions in time. Although each sand mixer has a corresponding status and fault indicator instrument, it can only be read by front-line operators. Data monitoring , collection workload is heavy

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