Self-inspection type intelligent electric actuator for valve
An electric actuator, intelligent technology, applied in valve details, valve devices, engine components, etc., can solve the problems of high labor intensity, loss, low efficiency, etc.
Active Publication Date: 2010-12-08
TEFULONG SHANGHAI TECH CO LTD
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Problems solved by technology
This long-term non-action working method is likely to cause the valve and actuator to fail to open and close normally, that is, when the valve is in the open or closed state for a long time, it is easy to get stuck, and this failure may cause immeasurable losses
In order to avoid this situation, enterprises usually need to arrange personnel to make regular inspections, but this method is labor-intensive, the functional working environment is harsh, and the efficiency is low
Method used
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[0016] The self-inspection intelligent valve electric actuator includes a mechanical part and an electronic part. The mechanical parts such as figure 1 — Figure 5 As shown, it includes a box body 1, a motor 2, a hand wheel 3, a drive shaft 4, a manual electric disengagement mechanism, a worm gear 5, and a worm 6 adapted to the worm gear 5. The worm 6 is linked with the output shaft of the motor 2, and the The hand wheel 3 is set on one end of the drive shaft 4, the worm gear 5 is sleeved on the drive shaft 4 and a gap is provided between the worm wheel 5 and the drive shaft 4, and the electric actuator also includes an analysis device and a display device, so The display device described includes an electric control main board 7 and a liquid crystal display 71 connected to the electric control main board 7 , electronic components are installed on the electric control main board 7 , and the described motor 2 is controlled by the control circuit on the electric control main bo...
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The invention relates to an electric actuator for a valve, in particular to a self-inspection type intelligent electric actuator for the valve with the self-inspection function. A speed and position detection unit and a torque detection unit are arranged in a control circuit and can regularly send a self-inspection signal for self-inspection under the control of a central processing unit. An actuating mechanism driving unit drives the valve to act, and the torque detection unit detects the load torque on a motor output shaft in the process of actuating the valve; and if the load torque on the motor output shaft is greater than a certain value, the valve is considered to be locked, a display device displays the fault information and reports the fault information to a monitoring center through a remote data communication port so as to notify a maintenance man to overhaul or replace the valve. The electric actuator for the valve has the advantages of avoiding manual inspection, reducing the labor intensity, guaranteeing that the electric actuator and the valve are positioned in a normal state at all times, and ensuring safety production.
Description
technical field [0001] The invention relates to an electric actuator for valves, in particular to a self-inspection, self-inspection, self-inspection, self-inspection, intelligent electric actuator for valves with a self-inspection function. Background technique [0002] Electric actuators are powered by electric energy and receive standard signals (analog and data) from regulators. Electric actuators are usually valve electric actuators, including a box, a motor, a hand wheel, a drive shaft, a hand-operated disengagement mechanism, a worm gear and a worm adapted to the worm gear. The worm is linked with the output shaft of the motor, and one end of the drive shaft is directly connected to the The control end and the other end of the valve are equipped with the above-mentioned hand wheel, but both are only fixed in the longitudinal direction, and can move separately on the circumference. The worm wheel is sleeved on the drive shaft and there is a gap between the worm wheel a...
Claims
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Login to View More IPC IPC(8): F16K31/05F16K31/53F16K37/00
Inventor 房保平李锦硕曹永明
Owner TEFULONG SHANGHAI TECH CO LTD