CN105999600A - Shower nozzle for deck - Google Patents

Abstract

The invention provides a shower nozzle for a deck. The shower nozzle adopts the design of three sleeves, the principles of hydraulic jacking and spring return, and a water distribution structure that multiple water flows splash back through impact, belongs to the field of fire control, and solves the problems that a conventional shower nozzle interfere with the operation of an aircraft and a vehicle, the foam expansion is low, the foam stability is poor, and the coverage is small. A swirler is plugged in an inner sleeve hole. A water distribution plate and an inner sleeve are fastened by a screw. The springs are arranged between a middle sleeve and the inner sleeve. The middle sleeve is screwed in an outer sleeve hole. At ordinary times, the water distribution plate are pushed by the springs, so that the water distribution plate maintains a level with the deck. In spraying, a fire fighting medium enters the swirler, and is sprayed out from a double-ring water outlet in the top of the inner sleeve; besides, the water distribution plate and the inner sleeve compress the springs to move up and come out from the deck under the hydraulic action, and after splashing back through impact of the water distribution plate, the fire fighting medium covers protection areas in a lotus leaf shape; and the shower nozzle comprises an outer sleeve, the inner sleeve, seal gaskets, a snap spring, the swirler, locking buttons, locking nuts, the springs, the middle sleeve, a seal ring and the water distribution plate. The shower nozzle is suitable for protecting flight decks of naval ships, hangars, dangerous cargo wharfs and trestles.

Description

Deck shower nozzle

Technical field

The present invention is novel relates to a kind of deck shower nozzle for fire protection sector, is that patellate covers by firing-fighting medium To protection zone, using three sleeve design, hydraulic pressure jacking, the principle of spring reset, multi-strand flow impact is anti- The cloth water-bound spattered, belongs to fire-fighting fire extinguishing, control fire field.

Background technology

Waterfog head in existing national standards GB5135.5-2003, spray angle 90 °, 120 °, goes out Fire medium spurts higher, big by windage, area coverage is little.

It is not provided with cyclone in current deck shower nozzle flow channels, foam mixing liquid is not carried out in advance Stirring mixing, coefficient of foaming is low, bubble mobility and poor stability；There is no jacking, resetting-mechanism；Spray Head arranges protrusion, and inadequate shielding frequently has the place of aircraft, vehicle pass-through.

Summary of the invention

Protrusion is set in order to solve conventional waterfog head, hinders deck aircraft, the day-to-day operation of vehicle, cover Capping amasss problem little, that coefficient of foaming is low, foam stability is poor.The present invention novel offer one deck shower nozzle, Using three sleeve design, hydraulic pressure jacking, the principle of spring reset, multi-strand flow impacts the cloth water-bound of backwash, Being that patellate covers to protection zone by firing-fighting medium, isolation oxygen suffocates, extinguishing by cooling.

Novel employing three sleeve design that are achieved in that of the present invention, hydraulic pressure jacking, the principle of spring reset, The cloth water-bound of multi-strand flow impact backwash；Deck shower nozzle is by trocar sheath (1), inner sleeve (2), sealing Pad (3), jump ring (4), cyclone (5), tight locking button (6), locking nut (7), spring (8), Middle sleeve (9), sealing ring (10), water distributing tray (11), screw (12) form.Cyclone plug is in interior In collar aperture spacing by jump ring, water distributing tray coordinates with inner sleeve and is fastened by screw, and spring is loaded on middle sleeve with interior Between sleeve pipe, middle sleeve spinning, with overcoat pore, uses sealing gasket to seal, tight locking button fastens；At ordinary times, Spring push inner sleeve, water distributing tray, water distributing tray keeps level with deck, and the trip is positioned by jump ring；Spurt Time, water or foam mixing liquid firing-fighting medium enter cyclone from water main, rotate through cyclone current stabilization and stir in advance Mixing mixing to accelerate, sprayed by the dicyclo apopore at inner sleeve top, water distributing tray, inner sleeve are at hydraulic pressure simultaneously Under effect, deck is exposed in compression spring upwards jacking, and firing-fighting medium impacts backwash through water distributing tray, in patellate Covering protection region.Be suitable to protect big-and-middle-sized surface ship flight-deck, helicopter deck, hangar, danger Product harbour, gas station, trestle, refinery region.

The present invention is novel to be provided the benefit that: at ordinary times by spring push, and on the shower nozzle of deck, plane keeps with deck Level, the landing operation to aircraft does not causes potential safety hazard, does not hinder the current of deck vehicle, during work, Water distributing tray utilizes hydraulic pressure jacking to expose deck, and firing-fighting medium spurts the lowest, and area coverage is relatively big, foaming times Number is stable under each pressure, and bubble mobility is good.

Accompanying drawing explanation

Further illustrate the present invention is novel with embodiment below in conjunction with the accompanying drawings.

Fig. 1 is the section of structure that the present invention is novel.

Fig. 2 is the water distributing tray profile that the present invention is novel.

Fig. 3 is the inner sleeve profile that the present invention is novel.

Fig. 4 is the inner sleeve top view that the present invention is novel.

Fig. 5 is the sprinkling operating mode profile that the present invention is novel.

Detailed description of the invention

Use three sleeve design, hydraulic pressure jacking, the principle of spring reset, the water distribution of multi-strand flow impact backwash Structure, cyclone plug is spacing by jump ring in inner sleeve pore, and sealing ring is loaded in inner sleeve groove, inner sleeve Cylindrical and middle sleeve bore design are matched in clearance, guide at upper and lower two；Water distributing tray coordinate with inner sleeve after by Screw fastens, and spring is loaded between middle sleeve and inner sleeve, and middle sleeve spinning, with overcoat pore, uses and seals Pad seals, tight locking button fasten；Trocar sheath is flush-mounted in the stepped hole of deck, and on trocar sheath, plane is put down with deck Together, trocar sheath bottom and water main straight screw connection, use locking nut, sealing gasket to carry out sealing tightly Gu, to adapt to the alignment error of water main and deck；Spring downward pushing tow inner sleeve, water distributing tray at ordinary times, On water distributing tray, plane keeps level with deck, and the trip is positioned by jump ring；When spurting, water or foam mixing liquid Firing-fighting medium enters cyclone from water main, rotates pre-stirring mixing through cyclone current stabilization and accelerates, by interior Cannula tip dicyclo apopore ejection, water distributing tray, inner sleeve are under hydraulic pressure effect simultaneously, compression spring to Deck is exposed in upper jacking, and the trip is controlled by middle sleeve step, firing-fighting medium through water distributing tray impact backwash, in Patellate covering protection region；Spurting complete stopping to supply water, water distributing tray, inner sleeve are multiple under the pushing tow of spring Position, water distributing tray recovers concordant with deck；Water distributing tray, trocar sheath cylindrical are respectively provided with sealing ring, it is to avoid rainwater, Impurity flows in shower nozzle, prevents from assembling fouling, reduces maintenance workload in the future.The novel solution of the present invention its Technical problem is adopted the technical scheme that: through three dimensional design, repeatedly spray testing improvement, water distributing tray indent Face is made up of 2 road camber lines: inner side is circular arc, and outside is parabola, and outside camber line guides firing-fighting medium and water Horizontal line is that 20 ° of angles upwards spray, and center is shoulder hole, and upper plane outer rim is designed as 15 ° × 1 chamfering, Upper plane keeps consistent through the optical processing of shot-peening Asia, coefficient of friction with deck；Bottom is machined with and coordinates with inner sleeve Dome.Being provided with step and the jump-ring slot of fixing cyclone in inner sleeve duct, duct top design has dicyclo Apopore, interior side ring is straight hole, and outer side ring is inclined hole, and inside and outside side ring hole is in the most uniform, by interior side ring The firing-fighting medium of straight hole ejection camber line impact backwash inside water distributing tray covers closer distance, by outer side ring inclined hole The firing-fighting medium of ejection camber line impact backwash outside water distributing tray covers larger distance, forms patellate and covers Protection zone, stair-stepping external cylindrical surface respectively has the groove installing sealing ring, and inner sleeve is adopted with middle sleeve By matched in clearance, guiding at upper and lower two, top is machined with the counterbore coordinated with water distributing tray.Sealing ring, sealing Pad uses metal material, high temperature resistant, corrosion-resistant；Metal parts uses tin bronze or low carbon stainless steel material.

1) rated operating pressure: 0.35MPa；

2) working pressure range: 0.3MPa-1.0MPa；

3) flow: >=200L/min；

4) coefficient of foaming: >=6；

5) mixing ratio: 3.0%-3.9%；

6) 25% drainage time: >=2.5min；

7) sectional area: >=32m is effectively covered²；

8) setting space: >=5.2m；

9) top lifting height: 12mm；

10) mounting means: upright.

11) Applicable media: clear water, sea water, aqueous foam-forming solution.

Claims (3)

1. a deck shower nozzle, is characterized in that using three sleeve design, hydraulic pressure jacking, the principle of spring reset, many The cloth water-bound of stock water impact backwash；Cyclone plug is spacing by jump ring in inner sleeve pore, water distributing tray with Inner sleeve cooperation is fastened by screw, and spring is loaded between middle sleeve and inner sleeve, middle sleeve spinning and trocar sheath Kong Zhong, uses sealing gasket to seal, tight locking button fastens；At ordinary times, spring push inner sleeve, water distributing tray, Water distributing tray keeps level with deck, and the trip is positioned by jump ring；When spurting, water or foam mixing liquid fire extinguishing Medium enters cyclone from water main, rotates pre-stirring mixing through cyclone current stabilization and accelerates, passes through inner sleeve Pipe top dicyclo apopore ejection, water distributing tray, inner sleeve are under hydraulic pressure effect simultaneously, compression spring to Deck is exposed in upper movement, and firing-fighting medium clashes into backwash through water distributing tray, in patellate covering protection region；Spray Discharging to finish and stop supplying water, water distributing tray, inner sleeve reset under the pushing tow of spring, and water distributing tray recovers with deck Concordant；Deck shower nozzle is by: trocar sheath (1), inner sleeve (2), sealing gasket (3), jump ring (4), rotation Stream device (5), tight locking button (6), locking nut (7), spring (8), middle sleeve (9), sealing ring (10), Water distributing tray (11), screw (12) form.

Deck the most according to claim 1 shower nozzle, is characterized in that inner sleeve, is provided with fixing cyclone in duct Step and jump-ring slot, duct top design has the apopore of dicyclo, interior side ring to be straight hole, and outer side ring is Inclined hole, the hole of inside and outside side ring, in the most uniform, stair-stepping external cylindrical surface respectively have and installs sealing ring Groove, top is machined with the counterbore coordinated with water distributing tray.

Deck the most according to claim 1 shower nozzle, is characterized in that the inner concave of water distributing tray is made up of 2 road camber lines: Inner side is parabola for circular arc, outside, and center is shoulder hole, and upper plane outer rim is designed as 15 ° × 1 Chamfering, outside cylinder has the groove installing sealing ring, and bottom is machined with the dome coordinated with inner sleeve.