Fault monitoring system for ventilation valve

Abstract

The invention discloses a fault monitoring system for a ventilation valve, which comprises remote general control equipment, a central processing unit, a valve actuating mechanism, a valve coupling connecting rod and a plurality of groups of valve blade rotating shafts, the central processing unit is electrically connected with the valve executing mechanism and the angle position sensors, the valve executing mechanism is mechanically connected with the valve coupling connecting rod, each valve blade rotating shaft is provided with a valve blade, and each valve blade rotating shaft is provided with an angle position sensor. The monitoring system measures whether each valve blade is executed in place or not by directly monitoring the rotating shaft of each valve blade, so that the problem that a valve executing mechanism is unhooked from each valve blade is effectively solved, and the safe operation of a ventilation valve system is ensured; especially in the process of linkage between a ventilation valve actuating mechanism feedback signal and other systems such as a fan, damage to equipment and personnel caused by equipment misoperation due to the fact that other systems receive false signals is prevented.

Description

technical field [0001] The invention belongs to the technical field of valve ventilation safety control, and in particular relates to a fault monitoring system for ventilation valves. Background technique [0002] like figure 1 As shown, the current existing ventilation valves are mainly composed of remote master control equipment, valve actuators, valve couplings and connecting rods, valve blade rotation shafts, etc. The remote master control equipment is electrically connected to the valve actuators and is responsible for providing For power supply and communication, it can remotely send operation instructions to the valve actuator and receive the action feedback signal of the valve actuator; The actuator drives the valve coupling and connecting rod to control the rotation of the valve blade rotation shaft. When the valve actuator is in place according to the instruction, it will provide a feedback signal to the remote main control device according to whether the valve ac...

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Problems solved by technology

[0002] like figure 1 As shown, the current existing ventilation valves are mainly composed of remote master control equipment, valve actuators, valve couplings and connecting rods, valve blade rotation shafts, etc. The remote master control equipment is electrically connected to the valve actuators and is responsible for providing For power supply and communication, it can remotely send operation instructions to the valve actuator and receive the action feedback signal of the valve actuator; The actuator drives the valve coupling and connecting rod to control the rotation of the valve blade rotation shaft. When the valve actuator is in place according to the instruction, it will provide a feedback signal to the remote main control device according to whether the valve actuator is in place; however, due to the processing quality of the ventilation valve , Loose installation, equipment aging and other reasons may lead to disconnection between the valve actuator and the valve coupling rod, or the connection between the valve coupling rod and the valve blade rotation shaft, resulting in the remote main control device receiving the valve actuator to perform in place The normal feedback signal of the valve blade, but the rotation axis of the valve blade is not in place precisely; this process only indicates whether the valve actuator is in place, but cannot determine whether the rotation axis of the valve blade is in place

It affects the accuracy of the valve operation, and it cannot be found and solved in time when the valve fails, so it needs to be improved

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