High-precision adjusting type fireproof valve and production line thereof

Abstract

The invention relates to a high-precision adjusting type fireproof valve and a production line thereof, and relates to the field of fireproof valves, in order to solve the problem that smoke leakage occurs due to the fact that fan blades of an existing fireproof valve are prone to deformation, the high-precision adjusting type fireproof valve comprises a mounting frame and multiple sets of fan blades, and the multiple sets of fan blades are arranged at a ventilation opening in parallel; the two ends of the fan blades are rotationally connected with the side wall of the ventilation opening, the multiple sets of fan blades are matched to be used for opening or closing the ventilation opening, the two sets of reinforcing nets are movably arranged at the ventilation opening and located at the two ends of the ventilation opening correspondingly, and driving assemblies are arranged between the fan blades and the two sets of reinforcing nets correspondingly. The fan blades rotate to drive the reinforcing net to move in the axis direction of the ventilation opening, and when the fan blades close the ventilation opening, the reinforcing net abuts against the fan blades. When the fan blades rotate, the two sets of reinforcing nets can be driven to move through the driving assembly, and when the fan blades close the ventilation opening, the reinforcing nets abut against the fan blades, and the reinforcing nets achieve the reinforcing effect on the fan blades.

Description

technical field [0001] This application relates to the field of fire dampers, in particular to a high-precision adjustable fire damper and its production line. Background technique [0002] The fire damper is usually installed in the exhaust duct system, and it is normally open. When a fire occurs, the smoke can be discharged from the exhaust duct. When the temperature of the flue gas reaches 280°C, the flue gas is on fire. The valve closes automatically to avoid the spread of fire. [0003] Existing fire dampers usually include a rectangular ring-shaped installation frame made of steel plates and multiple sets of fan blades. The effect of temperature control, gravity and tension spring mechanism, when a fire occurs, the flame invades the air duct, the high temperature melts the fusible alloy on the valve, or deforms the memory alloy, so that the fan blades are clamped to each other, Smoke and fire are blocked. [0004] In view of the above-mentioned related technologies,...

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventors found the following defects: after the fan blades are clamped to each other, they form a barrier to block the smoke and fire. Since the fan blades are usually thinner, the air pressure on the side where the fire occurs is relatively high. Large, the fan blades are prone to deformation after a period of time, resulting in smoke leakage, which poses a certain safety hazard

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