Emergency stop redundancy control system and control method
A technology of redundant control and control method, applied in general control system, control/adjustment system, instrument, etc., can solve the problem of unreliable cut-off mechanism of emergency stop system, achieve the effect of improving safety level and reducing safety risk
Active Publication Date: 2020-12-18
中油国家油气钻井装备工程技术研究中心有限公司 +2
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[0003] The first object of the present invention is to provide an emergency stop redundant control system, which solves the problem of unreliable cut-off mechanism of the emergency stop system in the prior art
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[0040] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0041] An emergency stop redundant control system of the present invention, such as figure 1 As shown, including the power circuit, the power circuit is connected to the emergency stop control system through the positive terminal X21 and the negative terminal X20;
[0042] The emergency stop control system includes the main safety relay circuit, the output interface of the main safety relay circuit is respectively connected in series with the input interface of the switch value safety relay circuit and the analog value safety relay circuit, and the output interface of the switch value safety relay circuit is connected in series with the switch value module emergency stop control The output loop of the circuit; the output interface of the analog quantity safety relay circuit is connected in series to the output loop of the emergency stop contr...
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The invention discloses an emergency stop redundancy control system which comprises a power supply circuit, wherein the power supply circuit is connected with an emergency stop control system througha positive end X21 and a negative end X20; the emergency stop control system comprises a main safety relay circuit, an output interface of the main safety relay circuit is respectively connected withinput interfaces of a switching value safety relay circuit and an analog quantity safety relay circuit in series, and an output interface of the switching value safety relay circuit is connected withan output loop of the switching value module emergency stop control circuit in series; an output interface of the analog quantity safety relay circuit is connected to an output loop of the analog quantity module emergency stop control circuit in series; according to a control method of the emergency stop redundancy control system, the problem that in the prior art, an emergency stop system cut-offmechanism is unreliable is solved.
Description
technical field [0001] The invention belongs to the technical field of automation control, relates to an emergency stop redundant control system, and also relates to a control method of the emergency stop redundant control system. Background technique [0002] With the extensive use of automation equipment in industrial production, people pay more and more attention to safety issues. The emergency stop system of the equipment is an important means to ensure the safe operation of production. Once the emergency stop button is pressed, the system will trigger an emergency stop. Immediately stop the operation of the equipment to avoid personal injury and equipment damage. At present, there are mainly two ways to realize the emergency stop system of equipment, (1) use the emergency stop button to control the power on and off of the general relay coil and then control the connection and disconnection of the emergency stop circuit; (2) use the emergency stop button and The safety ...
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IPC IPC(8): G05B9/03
CPCG05B9/03Y02P90/02
Inventor 孔永超杨双业王议朱长军寻明李正博范磊
Owner 中油国家油气钻井装备工程技术研究中心有限公司