Regulating type hydraulic control butterfly valve executing mechanism
A technology of hydraulically controlled butterfly valves and actuators, applied to valve details, valve devices, mechanical equipment, etc., can solve problems such as slow response speed, affecting equipment safety, and low adjustment accuracy, and achieve fast response and high-precision control.
Inactive Publication Date: 2014-08-13
SHANGHAI HUIYI CONTROL SYST
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Problems solved by technology
[0003] The existing actuators used to adjust the opening of butterfly valves are all purely mechanical structures, with low adjustment accuracy and slow response speed. When the equipment fails, it cannot be closed and opened quickly, which will affect the safety of the equipment.
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[0016] The embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings, but the present embodiments are not intended to limit the present invention, and any similar structures and similar changes of the present invention should be included in the protection scope of the present invention.
[0017] Such as Figure 1-Figure 2 As shown, an adjustable hydraulic control butterfly valve actuator provided by the embodiment of the present invention is characterized in that it includes a transmission box X1, a return spring C3, an actuator cylinder U1, an electro-hydraulic servo valve H3, a quick unloading valve H1, a quick Control solenoid valve H2, oil return check valve H4, oil inlet stop valve H5, damper Z1, first oil port K1, second oil port K2;
[0018] The transmission box X1 is provided with a driven gear C1, the actuator cylinder U1 is installed on the transmission box X1, and the piston rod G1 of the actuator cy...
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The invention provides a regulating type hydraulic control butterfly valve executing mechanism, which relates to the technical field of a valve and solves the technical problems of improving the control precision and accelerating the response speed. The regulating type hydraulic control butterfly valve executing mechanism comprises a transmission box, an executing oil cylinder, an electro-hydraulic servo valve, a fast unloading valve, a fast control electromagnetic valve, a first oil opening and a second oil opening, wherein a driven gear and a reset spring are arranged on the transmission box, a straight rack engaged with the driven gear is arranged on a piston rod of the executing oil cylinder, a displacement sensor is arranged on the straight rack, the reset spring is fixedly connected with the straight rack through a transmission rod, the electro-hydraulic servo valve controls the executing oil cylinder to operate according to the control signals and feedback signals of the displacement sensor, and the fast unloading valve and the fast control electromagnetic valve are used for controlling the fast unloading of the executing oil cylinder. The regulating type hydraulic control butterfly valve executing mechanism provided by the invention is applicable to the opening degree control of a butterfly valve.
Description
technical field [0001] The invention relates to valve technology, in particular to the technology of an adjustable hydraulic control butterfly valve actuator. Background technique [0002] Butterfly valve is a kind of regulating valve with simple structure. The opening and closing part of butterfly valve is a disc-shaped butterfly plate, which rotates around its own axis in the valve body, so as to achieve the purpose of opening and closing or regulating flow. It is usually installed on the pipeline. Cut-off and throttling action. [0003] Existing actuators used to adjust the opening of butterfly valves are all purely mechanical structures, with low adjustment accuracy and slow response speed. When the equipment fails, it cannot be closed and opened quickly, which will affect the safety of the equipment. Contents of the invention [0004] In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide an ...
Claims
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IPC IPC(8): F16K31/122F16K37/00
CPCF16K31/122
Inventor 宋德坤廖井明王孝伟
Owner SHANGHAI HUIYI CONTROL SYST