Device for automatically testing reliability of fire-fighting electromagnetic valve

Abstract

The invention discloses a device for automatically testing reliability of a fire-fighting electromagnetic valve. The device comprises a water pressurization pump, a reservoir, a test box and a bracket, wherein the test box is placed on the bracket; a water leakage sensor pad is arranged in the center position of the bottom in the test box; a fire-fighting electromagnetic valve sample is placed onthe water leakage sensor pad; the inlet end of the fire-fighting electromagnetic valve sample is connected with the water pressurization pump through a connecting pipe, and the outlet end of the fire-fighting electromagnetic valve sample is connected to the reservoir through a drainage pipe; the water outlet of the reservoir is connected with the water inlet of the water pressurization pump through a water pipe so as to form water circulation; a water guide groove is formed around the bottom in the test box, a water guide pipe is arranged at the lowest point of the water guide groove, and thewater outlet of the water guide pipe is connected with the reservoir; PTC ceramic heating devices are arranged at the lower parts of the left and right sides in the test box; and a cooling pipe is arranged on the inner wall of the test box and is connected with a refrigerating machine. The device disclosed by the invention can automatically and continuously complete tests under the conditions of normal temperature, high temperature, low temperature, sealing and the like and can automatically make test conclusions at the time points of all segments.

Description

technical field [0001] The invention belongs to the technical field of fire protection product detection, and in particular relates to an automatic reliability test device for a fire protection solenoid valve. Background technique [0002] The fire solenoid valve used in the automatic sprinkler system shall be subject to spot checks for reliability tests. The fire solenoid valve shall meet the reliability requirements under normal temperature, high temperature and low temperature conditions, and finally shall meet the sealing requirements at normal temperature. During normal temperature, high temperature and low temperature tests, the pressure source is connected to the inlet end of the solenoid valve, and the solenoid valve is positively charged to the rated working pressure, so that the valve is fully opened or closed, and the switching frequency is not more than 30 times / min. Operate 20,000 times at room temperature 20°C±5°C, maximum working pressure and rated working vol...

AI Technical Summary

Problems solved by technology

Now the test is mostly intermittent manual operation, such as disassembling and assembling the solenoid valve for high and low temperature tests after the normal temperature test, etc., there are problems in the test such as high labor intensity, many human interference factors, and low detection quality and efficiency. At present, there is no one installation that can automatically complete the test device under normal temperature, high temperature, low temperature, sealing and other conditions, and automatically make the reliability test conclusion of the fire solenoid valve in a detailed time period

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