Emulsion pump station control system and pressure control method and pressure control device for general liquid outlet thereof

Abstract

The invention provides an emulsion pump station control system and a pressure control method and a pressure control device for a general liquid outlet thereof, which are used for solving the problems that in the prior art, the control of the emulsion pump station control system on the pressure of the general liquid outlet lags and causes instable liquid supply of the emulsion pump station and the like, generally with a control host conducting unified treatment by the traditional PID control method. The emulsion pump station control system comprises the control host, and an emergency control extension set, a general liquid outlet pressure control extension set and a plurality of emulsion pump parameter detection control extension sets, which are respectively connected with the control host, wherein the general liquid outlet pressure control extension set is connected with all the emulsion pump parameter detection control extension sets and used for outputting a pressure control signal to all the emulsion pump parameter detection control extension sets. By adopting the technical scheme and fuzzy control theory, the control signal can be output to an unloading valve on the emulsion pump in situ, so as to realize real-time effective monitoring of the pressure of the general liquid outlet and enables the stable liquid supply of the emulsion pump station.

Description

technical field [0001] The invention relates to the field of mine emulsion pump station monitoring, in particular to an emulsion pump station control system and a method and device for controlling the pressure of a total liquid outlet. Background technique [0002] The mining emulsion pump station occupies a very important position in the comprehensive mechanized coal mining operation of coal mines, and is one of the key equipments in the modern high-yield and efficient fully-mechanized mining face of the coal mine. [0003] The emulsion pump station commonly used in China is composed of two emulsion pumps and an emulsion tank, and the corresponding control equipment is also produced on this basis. The force is small, the flow is small, the pulsation is large, the system is unstable, and failures often occur during use, which seriously affects the safe production of the working face. With the development of large-flow electro-hydraulic control hydraulic supports in high-yie...

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Problems solved by technology

[0007] The main purpose of the present invention is to provide a kind of emulsion pumping station control system and its total outlet pressure control method and device, to solve the control system of the emulsion pumping station control system on the total outlet pressure in the prior art. The main engine adopts the traditional PID control method for unified processing, and there are problems such as control lag, real-time and effective monitoring of the emulsion pump station, and the inability of the emulsion pump station to supply liquid stably.

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