Electro-hydraulic integrated control device applied to valve control

Abstract

The invention discloses an electro-hydraulic integrated control device applied to valve control. The electro-hydraulic integrated control device applied to valve control comprises an actuator connected with the valve (1) and adjusting the valve location. The actuator is connected to a control assembly controlling the operation of the actuator. The control assembly is a hydraulic control mechanism packaged in a cabinet structure. The control assembly is provided with a pipeline connecting with the actuator. The electro-hydraulic integrated control device applied to valve control is reasonable in design. The control assembly is designed into a control cabinet mode, and the control assembly of a filter, a manual pump and the like is arranged reasonably in the control cabinet structurally. The electro-hydraulic integrated control device applied to valve control is simple in operation, can avoid damages to the control assembly from the valve vibration effectively, can increase cleanliness capacity on site and is suitable for the regulation control and the on-off control of devices with any lineal travel movement and angular travel movement.

Description

technical field [0001] The invention relates to the field of valve control, in particular to an electro-hydraulic integrated control device applied to valve control. Background technique [0002] For valve control, the actuator can be used to control the valve at any position of fully open or fully closed. During its application, hydraulic oil, gas, electricity or other energy can be used to move it through a motor, cylinder or other device. Converted into actuation action, precisely make the valve go to any position. In the existing field of valve control, existing products integrate control accessories (such as proportional valves, servo valves, etc.) figure 1 Shown: [0003] (1) When there is vibration in the control pipeline, it will cause the internal wiring of the hydraulic control servo valve installed on the valve actuator to loosen. Of course, the electronic components may even be damaged under high-frequency vibration. Use hydraulic control to prevent panting Ta...

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Problems solved by technology

[0003] (1) When there is vibration in the control pipeline, it will cause the internal wiring of the hydraulic control servo valve installed on the valve actuator to loosen. Of course, the electronic components may even be damaged under high-frequency vibration. Use hydraulic control to prevent panting Take the vibration valve as an example. During its working process, due to the large vibration of the valve, the damage to the control accessories integrated on the actuator is also large, which seriously affects its service life.

[0004] (2) In the actual application process, the hydraulic control servo valve has very high requirements on the cleanliness of the hydraulic oil. In the existing technology, the hydraulic control servo valve is often stuck due to impurities inside the hydraulic oil and cannot work normally. Therefore, the site provides The cleanliness also needs to meet the corresponding hydraulic oil pollution level (ie: NAS1638 class 7) or oil particle size standard (ie: ISO4406 class - / 16 / 13 of 9-10Mpa) hydraulic oil source

[0005] (3) For the existing control accessories such as: hydraulic parts, the pressure oil source provided by the outside is required, which causes the complexity of the equipment structure and cumbersome operation steps. At the same time, the size of the pressure oil source is not easy to control and adjust , which is more inconvenient for the control of the executive structure

[0006] (4) There is no manual control device in the prior art, which is inconvenient for valve installation and manual adjustment of valve position in case of failure

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