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Explosion-proof hybrid electro-hydraulic integrated actuator for valve

An electro-hydraulic actuator, dual-power technology, applied in engine components, valve details, valve devices, etc., can solve the problems of low integration, poor explosion-proof performance, exposed cables, etc., to achieve reasonable functional layout and improve integration. degree and effect of explosion-proof performance

Active Publication Date: 2015-04-29
CHONGQING CHUANYI AUTOMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The most widely used electro-hydraulic actuator on the market is the servo valve-controlled electro-hydraulic actuator, which adopts an open cycle hydraulic system, and adjusts the flow direction and flow of hydraulic oil by controlling the servo valve to realize the adjustment of the controlled object, but there are Technical problems of exposed cables, low degree of integration, and poor explosion-proof performance

Method used

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  • Explosion-proof hybrid electro-hydraulic integrated actuator for valve
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  • Explosion-proof hybrid electro-hydraulic integrated actuator for valve

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Embodiment Construction

[0021] figure 1 It is a structural schematic diagram of the present invention; figure 2 for figure 1 A-A sectional view of ; image 3 for figure 1 The B-B sectional view of; Figure 4 It is an axonometric drawing of the present invention, Figure 5 It is a schematic diagram of the structure of the hydraulic drive mechanism; Figure 6 for Figure 5 As shown in the figure: the dual-power integrated explosion-proof electro-hydraulic actuator for the valve of this embodiment includes an electrical control box 1, a double-acting cylinder 2 and a hydraulic drive mechanism 3; The displacement sensor 4 of the piston displacement; the double-acting cylinder 2 is driven by the hydraulic drive mechanism 3 for telescopic movement, and is composed of three major modules: the electrical control box 1, the double-acting cylinder 2 and the hydraulic drive mechanism 3. It adopts a modular design and has a reasonable functional layout. The oil cylinder has its own displacement detection...

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Abstract

The invention discloses an explosion-proof hybrid electro-hydraulic integrated actuator for a valve. The actuator comprises electrical control box, double-acting cylinders and hydraulic power unit; with a piston displacement of the displacement sensors and detectors for detecting the pressure of the pressure on the double-acting cylinder sensor, double-acting cylinders driven by a hydraulic power unit telescopic movement; hydraulic power unit according to the motor, pump, manifold, valve blocks flow matching, piping and other integration body, the valve of the invention hybrid integrated electro-hydraulic explosion actuators, cylinders comes with displacement and pressure testing, to create conditions for the realization of high-precision positioning of double-loop control, modular design, functional and reasonable layout, and enhance the degree of integration and explosion-proof performance.

Description

technical field [0001] The invention relates to an electro-hydraulic actuator, in particular to a dual-power integrated explosion-proof electro-hydraulic actuator for valves. Background technique [0002] As a power device, the valve actuator integrates pneumatic, hydraulic, mechanical transmission, control, electromechanical, computer, communication and other technologies, and can quickly and stably control the position of the valve accurately. It has been widely used in petroleum, electric power, The driving parts of valves in water conservancy, metallurgy, papermaking, aerospace, pipeline, petrochemical, industrial equipment, food processing and other fields. Electro-hydraulic actuator is one of the more commonly used actuators. It is generally used in occasions with fast speed, large output and high control precision. The upper control system sends instructions to the actuator, and the actuator controls the hydraulic power system to drive the valve to do linear motion. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/122F16K37/00
CPCF16K31/04F16K31/122F16K37/0041F16K37/005
Inventor 李巧向学院高晞光苏建峰李智勇杨晓峥黄恩涛
Owner CHONGQING CHUANYI AUTOMATION
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