Self-adjusting type flow control valve for fire-fighting spraying

Abstract

The invention provides a self-adjusting type flow control valve for fire-fighting spraying, and belongs to the technical field of flow control valves. The self-adjusting type flow control valve comprises a valve body and an adjusting seat, wherein a partition plate is arranged in the valve body, a driving rod is inserted into the partition plate in a penetrating mode, an annular through hole corresponding to the driving rod is formed in the partition plate, an adjusting pipe seat is fixedly embedded in the annular through hole, an adjusting assembly is slidably embedded in the adjusting pipe seat, an on-off plate corresponding to the annular through hole is arranged on one side, far away from the adjusting pipe seat, of the partition plate, a connecting air bag is arranged in the adjustingseat, and a sealing chamber and a detection reaction air bag communicate with the connecting air bag. According to the self-adjusting type flow control valve for fire-fighting spraying, the detectionreaction air bag, the sealing chamber, the driving rod, a sealing plate and the adjusting assembly are combined to act, so that the water amount of fire-fighting spraying can be automatically adjusted according to the requirement of a fire, a large amount of water resources are saved while the initial fire is effectively extinguished or the spread of the fire is inhibited, and then the utilization rate of resources is improved.

Description

technical field [0001] The invention relates to the technical field of flow control valves, in particular to a self-adjusting flow control valve for fire sprinkler. Background technique [0002] Fire sprinkler is a widely used fixed fire extinguishing device. When a fire occurs, the sprinkler can be automatically turned on to control and extinguish the initial fire in a timely and effective manner, reducing the probability of fire spread or the severity of the fire, and correspondingly improving To ensure the safety of fire sprinkler covered places. [0003] However, the existing fire sprinklers are generally fixed-flow sprays, and the spray volume and spray effect per unit time are fixed. When the fire is small, the spray volume is greater than the spray volume required to extinguish the fire. , causing waste of water resources, and expanding the scope and degree of dampness of the corresponding facilities and items. When the fire is large, the amount of spraying is less t...

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Problems solved by technology

[0003] However, the existing fire sprinklers are generally fixed-flow sprays, and the spray volume and spray effect per unit time are fixed. When the fire is small, the spray volume is greater than the spray volume required to extinguish the fire. , resulting in the waste of water resources, and expanding the scope and degree of dampness of the corresponding facilities and items. When the fire is large, the amount of spraying is less than the amount required to extinguish the fire, which makes it difficult to extinguish the initial fire, which relatively speeds up the fire. The speed at which the spread spreads, which in turn increases the severity of the fire

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