Ultrahigh-pressure fire-fighting hose

Abstract

The invention discloses an ultrahigh-pressure fire-fighting hose, belonging to the technical field of fire-fighting instruments, especially relating to a production technology of a fire-fighting hose. The hose has a structure of an inner layer, a middle layer and an outer layer, and a polyurethane rubber tube, a two-upper and one-lower twilled woven tube and a two-upper and two-lower twilled woven tube respectively serve as the inner layer, the middle layer and the outer layer. By adopting the three-layer structure, the pressure resistance of a product can be greatly enhanced, and the ultrahigh-pressure fire-fighting hose can bear a 6.0MPa ultrahigh-pressure fire-fighting water source, and is mainly applied onto high-pressure fire-fighting vehicles for extinguishing fire of an urban high-rise building and being capable of delivering water to the height of more than 300m. By adopting the two-upper and one-lower twilled woven tube and the two-upper and two-lower twilled woven tube as the middle layer and the outer layer respectively, besides the pressure resistance, the product has certain flexibility and wear resistance, thereby being beneficial to turning, folding and converting for use, and facilitating extension to different positions so as to improve the fire-fighting efficiency and reduce the labor intensity of operating staffs, and favorably prolong the service life of the product.

Description

technical field [0001] The invention belongs to the technical field of fire-fighting equipment, and in particular relates to the production technology of a fire-fighting hose. Background technique [0002] At present, the highest design working pressure of the fire hose national standard is 2.5MPa. The fire hose is composed of two layers. In the process of use, its pressure resistance is poor, and high-pressure water cannot be added. Therefore, it is not suitable for fire extinguishing of high-rise buildings, which is not conducive to shortening the fire extinguishing time and reducing the loss of people and property. Contents of the invention [0003] The purpose of the present invention is to propose an ultra-high pressure fire hose especially suitable for high-rise buildings. [0004] The hose of the present invention is composed of three layers, the inner layer is a polyurethane hose, the middle layer is a 2 up and 1 down twill weave tube, and the outer layer is a 2 u...

AI Technical Summary

Problems solved by technology

[0002] At present, the highest design working pressure of the fire hose national standard is 2.5MPa. The fire hose is composed of two layers. Its pressure resistance is poor during use, and high-pressure water cannot be used. Therefore, it is not suitable for fire extinguishing of high-rise buildings, which is not conducive to shortening the fire extinguishing time and reducing the loss of people and property.

Images