Combined pressure rotational flow open type water mist spraying head applied to large cruise ship

Abstract

The invention relates to a combined pressure rotational flow open type water mist spraying head applied to a large cruise ship. The spraying head comprises a connecting part, a filter net cylinder, anozzle base and multiple nozzles, wherein the connecting part comprises a first cylinder part, a second cylinder part and a third cylinder part fixedly connected in sequence and all hollowed; multipleinclined holes are formed in the side wall of the first cylinder part; the filter net cylinder is reversely buckled on the first cylinder part through a tight matching mode for covering the first cylinder part on the inner side; the nozzle base is detachably connected with the third cylinder part, and is provided with multiple nozzle mounting holes; the multiple nozzles are correspondingly mounted in the multiple nozzle mounting holes; first conical holes near the nozzle mounting holes and second conical holes connected with the first conical holes are axially arranged in the nozzles; the diameters of the first conical holes are gradually reduced in a direction of leaving away from the nozzle mounting holes; and the diameters of the second conical holes are gradually increased in a direction of leaving away from the first conical holes. The spraying head conveniently mounts and replaces each part, conveniently stores wearable parts, and meanwhile, is large in coverage area sprayed bythe nozzles and excellent in fire extinguishing effect.

Description

technical field [0001] The invention relates to the technical field of fire-fighting nozzles for large cruise ships, in particular to a combined pressure swirling open-type fine water mist nozzle applied to large cruise ships. Background technique [0002] As a hot spot in the recent market pursuit, large cruise ships have been closely watched by all parties. my country's design and construction of large cruise ships is in a zero-based state. Large cruise ships are luxuriously decorated, with exquisite interiors, densely populated, and a large number of cabins. Therefore, the factors that cause fires are more complex and diverse, and they have higher requirements for fire extinguishing systems. The water mist fire extinguishing system is the best choice for the fire extinguishing system of large cruise ships because of its water-based environment affinity and low water release. Therefore, it is necessary to work hard to promote the application of water mist fire extinguishi...

AI Technical Summary

Problems solved by technology

[0003] For the open nozzle of the water mist fire extinguishing system, there are many related patents in China. Most of the patented nozzle housings in China adopt an integrated structure. The filter screen is installed and fixed by special parts, and the installation and replacement of the nozzle is very inconvenient. At the same time, the working pressure range is small, which limits the use of existing nozzles on large luxury cruise ships

For the above problems, there is still no good solution

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