FIELD: machine engineering.
SUBSTANCE: automatic protecting device of safety systems under emergency modes contains a system of sensors and an electrovalve. A signal controlling the actuating device is transmitted from a control device, designed in the form of an electrovalve. The device for electric start of the electrovalve is assembled on a lock-cushion nut fastened in an upper part of the electrovalve case and contains two contacts: a central contact and a "case" contact. A piston locked by the holder in the standby mode is installed inside the case of the electrovalve. When the electrovalve is actuated, the piston functions as a cutter cutting the holder off, designed in the form of a black-drawn wire with a diametre of 1.0 mm. One end of the holder is secured to the case of the electrovalve, while another end is attached to the end an actuating lever, connected to an actuating spring. The actuating device is actuated with a switch button, which is a part of the acuating device starting system. The actuating device starting system consists of the actuating lever, on one end of which the actuating spring and the holder are fixed, while two openings are made on the other end: an opening for a safety pin and an opening for mounting an acuating lever pin. The actuating lever pin is fixed to a bracket rigidly connected to the case of the actuating device. The electrovalve is connected to a system for probing a hazardous zone, including sensors configured to exceed the maximum permissible concentrations of chemically hazardous substances present in this zone, and a probe tuned to exceed the maximum permissible levels of radioactive substances signals from which are fed to a common microprocessor which processes these signals and gives a control signal to turn on the electrovalve.
EFFECT: increased protection effectiveness of technological equipment from emergencies.
3 dwg
