Smoke detector tester with purge

Abstract

The invention discloses a scavenging smoke detector tester which mainly comprises a base bar and a smoke gun head mounted at the end of the base bar. A smoke generator, a fan, a smoke duct and a control device are disposed in the smoke gun head. A smoke outlet of the smoke duct is located on the upper portion of the smoke gun head. The control device comprises a switch arranged at the top end of the smoke gun head. The scavenging smoke detector tester is characterized in that the fan is a direct-current bidirectional fan, the switch is a two-position microswitch, and the two-position microswitch is in a first on mode to allow the direct-current bidirectional fan to positively rotate and in a second on mode to allow the direct-current bidirectional fan to reversely rotate. The scavenging smoke detector tester is capable of clearing alarm as fast as possible to restore operation of a smoke detector, and field operation is facilitated greatly.

Description

technical field [0001] The invention relates to the detection of a fire-fighting sensor, in particular to a device for performing a smoke test on a smoke detector. Background technique [0002] All kinds of buildings, especially public buildings, are basically equipped with automatic fire alarm and sprinkler systems. In the process of installation, commissioning, acceptance of the system, and in the process of daily maintenance to ensure the normal operation of the system, it is necessary to One of the smoke detectors is tested, including a field smoke test. [0003] When conducting the field smoke test, a smoke detector tester is required. During the test of the smoke detector, due to the poor ventilation conditions of the location, most of them are closed places, which will cause the test smoke to not dissipate in the detection chamber for a long time, resulting in the alarm status of the smoke detector that cannot be eliminated. , as short as 1-2 minutes, and as long as...

AI Technical Summary

Problems solved by technology

During the test of the smoke detector, due to the poor ventilation conditions of the location, most of them are closed places, which will cause the test smoke to not dissipate in the detection chamber for a long time, resulting in the alarm status of the smoke detector that cannot be eliminated. , as short as 1-2 minutes, and as long as 5-10 minutes, due to the wide distribution and large number of smoke detectors, it brings great trouble to the test work. On the one hand, the test time of a single smoke detector is long, On the other hand, due to the existence of fire hazards, the scene must be kept patrolling.

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