Automatic compensation controller for fluid

Abstract

The invention relates to a fluid automatic compensate controller, which comprises a flow channel, wherein the invention is characterized in that: the flow channel is arranged with an adjuster that axially moves by the fluid function; the section difference between the flow channel and the adjuster changes with the motion of adjuster; the adjuster will generate function force balanced with fluid force in the moving process. The invention has simple structure, wide application and sensitive control. The invention can control the speed, pressure and flux of output fluid quickly.

Description

technical field [0001] The invention relates to the field of fluid control, in particular to a fluid control device that can automatically compensate and adjust with changes in fluid parameters at an input end and an output end. Background technique [0002] Traditional fluid control technology mainly relies on various valve bodies to control and adjust various fluid parameters, and its control methods are mainly divided into two types: manual control and electric control. Its working principle is to rely on external force to change the position of the spool to adjust the effective area of ​​the fluid passing through the valve body, so as to achieve the purpose of changing the fluid parameters such as the pressure or flow rate or flow rate of the output fluid. [0003] However, this control method inevitably has the disadvantages of low control efficiency and poor control effect. First of all, because it relies entirely on the external driving force to control the movement ...

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Problems solved by technology

[0003] However, this control method inevitably has the disadvantages of low control efficiency and poor control effect.

First of all, because it relies entirely on the external driving force to control the movement of the spool, the spool itself cannot automatically adjust with changes in fluid parameters, so the existing valve technology cannot quickly adjust itself according to real-time changes in fluid parameters; secondly , the existing valve technology without exception is a valve body that only has the function of adjusting one fluid parameter, such as a pressure regulating valve and a speed regulating valve. In practical applications, the fluid parameters at both ends of the flow channel, For example, the pressure, flow rate or flow may change very complicated at the same time. In such a complex working environment, it is difficult for this single-parameter control valve to adapt to actual needs.

For example, in production practice, it may be necessary to maintain or increase the output flow while reducing the output pressure, or one or more fluid parameters at the input or output end have continuous and irregular changes, such as pumping water, oil, etc. from the ground. In the case of fluid substances such as natural gas or natural gas, the parameters of the fluid located underground cannot be accurately predicted due to the complex and changeable related factors

Such working environment and requirements for the traditional control valve body can only be completed by a complex and huge valve body system composed of a huge number of valve bodies, which will inevitably greatly increase the cost of the valve body system and the maintenance and operation of the system the cost of

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