Portable fire extinguishing water agent adding device for helicopter fire extinguishing system

Abstract

The invention discloses a portable fire extinguishing water agent adding device for a helicopter fire extinguishing system, which comprises a support cylinder and a water bag arranged in the support cylinder. It is detachably fixed on the peripheral edge of the upper port of the support cylinder, and the support cylinder is a ring structure composed of a plurality of strip plates connected end to end and fastened and fixed by a detachable clamping component. The invention has the advantages of simple structure, low cost, good practicability, high safety in use, easy to carry, store and quickly assemble, etc., and can meet the requirements of adding fire extinguishing water to helicopter fire extinguishing systems with various structures such as buckets and belly water absorbing devices and different capacities agent.

Description

technical field [0001] The invention relates to the technical field of mountain fire extinguishing equipment, in particular to a portable fire extinguishing water agent adding device for a helicopter fire extinguishing system. Background technique [0002] Wildfire is a natural disaster that occurs in many countries and regions. It has the characteristics of multiple points, wide area, rapid spread, and extremely high time limit for prevention and control. At present, research on wildfire prevention and control technologies such as man-made wildfire prediction, satellite fire point monitoring, and ground-based efficient fire extinguishing has been carried out in China. However, during periods of high incidence of mountain fires such as Qingming Festival and Spring Festival, there are many people returning home to worship their ancestors, and rural roads are seriously congested. Fire trucks often block urban and rural arteries for 1-2 hours. By the time fire engines arrive at...

AI Technical Summary

Problems solved by technology

[0005] (1) The power of the helicopter is the highest when hovering, and the strong wind generated may easily cause the water belt to roll up, the gravel to rise, and it is easy to swing. However, the inside of the bucket cannot be equipped with equipment that changes the center of gravity of the bucket or is easy to wind the sling, which is prone to safety problems. Usually Under certain circumstances, it is strictly forbidden to stand under the large helicopter;

[0006] (2) The bucket has a large mass, and the helicopter cannot fly up directly, and needs to slide forward and upward, so the horizontal dimension of the bucket must be greater than 4m

[0009] (1) A water bag is placed inside the bucket, an electric water pump is installed inside the water bag, and a control cable is placed on the helicopter to control the start and stop of the electric water pump. However, this method is likely to cause entanglement of the hanging bucket sling, and the risk is relatively high;

[0010] (2) A water tank with fire extinguishing agent is installed on the belly of the helicopter, and the fire extinguishing agent flows from the water tank into the bucket through the water pipe. This method makes the helicopter have two centers of gravity, and the stability risk is extremely high

Due to the narrow space inside the fuselage and the arrangement of a large number of power cables and signal cables, the water tank is placed inside the helicopter fuselage, and installation, maintenance, and leak detection are difficult. If the water tank leaks or corrodes, it will seriously affect the flight safety of the helicopter.

[0012] (4) Digging pits on the ground to fetch water requires the helicopter to have a good start and stop location, the geological conditions are limited, and the location of the fire scene is uncertain, so it is difficult to meet the time limit requirements

[0013] (5) The support device that can replenish the fire extinguishing agent is installed on the ground. Since the power of the helicopter is the largest when it is hovering, the disturbance fluid on the ground is the largest. At this time, a certain swing will be generated, resulting in a hard display on the ground that may cause aircraft instability or damage to the bucket.

[0014] To sum up, the current scheme of temporarily adding fire extinguishing agent has defects such as poor practicability and high risk, and cannot be popularized and applied in engineering

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