Dynamic balance type large-flow proportional valve control mechanism

Abstract

The invention discloses a dynamic balance type large-flow proportional valve control mechanism. The dynamic balance type large-flow proportional valve control mechanism comprises a base, a valve cover, a movable magnetic valve element, an elastic piece and an electromagnetic component, wherein a flow channel and a flow channel nozzle are arranged on the base, the valve cover is arranged on the base, and the elastic piece is arranged in the valve cover; and a sealing sleeve structure is arranged at the upper side of the valve cover, and the upper end of the movable magnetic valve element penetrates through the elastic piece and enters the sealing sleeve structure. According to the scheme, the valve cover is designed into a form with a sleeve structure, so that the movable magnetic valve element is sealed in the valve cover, and the air tightness and the opening stability are ensured; a balance channel is designed on the movable magnetic valve element, so that the pressure of the movable magnetic valve element is stabilized up and down, negative pressure resistance for opening does not exist, and the ratio of the inner diameter of the sealing sleeve structure to the aperture of the flow channel nozzle is selected according to the flow to be controlled so as to adapt to the requirements of different customers; and the whole is more stable, hysteresis is small, starting voltage and energy consumption are reduced, the service life of a valve is prolonged, the performance of the valve is improved, and the flow within the range of 0-50000 LPM can be accurately controlled.

Description

technical field [0001] The invention relates to a dynamic balance type large-flow proportional valve control mechanism, which belongs to the technical field of flow control. Background technique [0002] Solenoid valve is the main part of fluid flow control. Solenoid valve generally attracts the magnetic core through electromagnetic components, and controls the flow through the opening of the magnetic core. precision. [0003] In order to solve the above problems, the applicant recently applied for a double-elastic precision flow control mechanism. This structure reduces the starting voltage and energy consumption to a certain extent, and makes the valve opening and closing more stable, with small hysteresis. However, there is a problem with the airtightness of the magnetic core, which affects the stability of opening, and the maximum flow rate that can be controlled is still small, and the structure still needs to be optimized. Contents of the invention [0004] The obj...

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Problems solved by technology

[0002]Solenoid valve is the main component of fluid flow control. Solenoid valve generally attracts the magnetic core through electromagnetic components, and controls the flow through the opening of the magnetic core; the existing solenoid valve The structure is not reasonable enough, which leads to the instability of the intake structure and affects the accuracy of flow control

[0003] In order to solve the above problems, the applicant recently applied for a double-elastic precision flow control mechanism. This structure reduces the starting voltage and energy consumption to a certain extent, and makes the valve opening and closing more stable, with small hysteresis. However, there is a problem with the airtightness of the magnetic core, which affects the stability of opening, and the maximum flow rate that can be controlled is still small, and the structure still needs to be optimized

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