Device for transmitting control signal by pipeline fluid

Abstract

The invention discloses a device for transmitting a control signal through pipeline fluid. The device comprises the fluid pipeline, a controller and a receiver, wherein the controller and the receiverare connected through the fluid pipeline, and the controller comprises a hollow box body which is connected into the fluid pipeline in series through a flow inlet and a flow outlet; a rotary disc isrotatably mounted in the box body through a rotary shaft, and a gear is arranged on the outer edge of the rotary disc; a plurality of communication tubes are arranged on the rotary disc at intervals,all the communication tubes are located on a circle with the rotary shaft as the circle center, a rotary impeller composed of the rotary shaft and blades is arranged in each communication tube, and the blades in different communication tubes are different in shape and / or number; the flow inlet of the box body is equipped with a flow inlet tube which extends into the box body and is in contact withthe side surface of the rotary disc; a gap is formed between the box body side wall in which the flow outlet is formed and the side surface of the rotary disc; an operation mechanism for controllingaction of the rotary disc for connecting the needed communication tube to the flow inlet is arranged outside the box body; and the receiver is an orifice plate flow meter connected to the fluid pipeline.

Description

technical field [0001] The invention belongs to the technical field of automatic control, and in particular relates to a device for transmitting control signals by pipeline fluid. Background technique [0002] With the rapid development of science and technology, people's requirements for automation control technology are getting higher and higher. In the field of automatic control technology, the current control of equipment is mainly realized by using circuits, networks (wired or wireless) and other methods. Generally speaking, the use of circuits, networks (wired or wireless), etc. to implement control functions usually requires the configuration of precision instruments and equipment such as signal generation, signal detection, signal conversion, signal transmission, signal processing, and control drives. These precision instruments and equipment usually A larger investment is required. In the case of fluid pipelines, if the pipeline fluid is used to realize the releva...

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Problems solved by technology

[0003] In addition, in some occasions (such as electric leakage is prone to explosion, communication lines are easily corroded, wireless signals are difficult to transmit, and wired lines are difficult to repair after faults, etc.), the control function is realized by using circuits and networks (wired or wireless) There will be more restrictions, and even difficult to implement

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