CN2582661Y

CN2582661Y - Liquid atomization spray nozzle for fire-extinguishing

Info

Publication number: CN2582661Y
Application number: CN 02245559
Authority: CN
Inventors: 秦俊; 廖光煊; 范维澄; 陆强; 余明高
Original assignee: University of Science and Technology of China USTC
Current assignee: University of Science and Technology of China USTC
Priority date: 2002-12-17
Filing date: 2002-12-17
Publication date: 2003-10-29
Anticipated expiration: 2012-12-17

Abstract

The utility model relates to a liquid atomization spray head for fire-extinguishing, which belongs to a fire-fighting fire-extinguishing apparatus and specifically relates to a pivotal part which is the liquid atomization spray head for fire-extinguishing with high efficiency of cleanness and without environmental pollution. The liquid atomization spray head for fire-extinguishing is composed of a spray nozzle core and a spray nozzle seat. The utility model is characterized in that the spray nozzle seat is a cylinder; the middle part and the lower part of the spray nozzle seat are hollow; the outside of the lower part of the spray nozzle seat is provided with external connection screw threads; the inside of the lower part of the spray nozzle seat is provided with inner screw threads; the upper part of the spray nozzle seat is provided with an axial through hole which is a spray hole; the outside of the spray hole is provide with an outer tapered angle; the inside of the spray hole is provided with an inner tapered angle; the appearance of the spray nozzle core also forms a cylindrical shape; the periphery of the lower part of the spray nozzle core is provided with outer screw threads; both sides of the middle part of the spray nozzle core are symmetrically provided with two transversal grooves; the bottom of the spray nozzle core is provided with an axial blind hole; the connection part of the top of the axial blind hole and two transversal grooves form an opening; the upper part of the spray nozzle core is provided with an inclined groove along the side; the outer screw threads of the spray nozzle core is connected with the inner screw threads of the spray nozzle seat.

Description

Fire-fighting atomization of liquid shower nozzle

One, technical field

The utility model belongs to the fire-fighting fire extinguishing equipment, is specifically related to the critical component fire-fighting atomization of liquid shower nozzle of the extinguishing device of clean and effective, non-environmental-pollution.

Two, background technology

Existing water spray fire-fighting system shower nozzle sprayed is the bulky grain globule of diameter greater than 1mm, take a large amount of injection waters of long-time continuous, stamp out a fire with the critical value that reaches fire extinguishing.This not only needs to consume great amount of water resources, and fire extinguishing is renderd a service lower; Because of the waste that a large amount of water sprays bring water resource, can not adapt to the fire extinguishing needs of various fire hazard environments; A large amount of uses of water can damage object of protection simultaneously, also can pollute to environment; The thin water smoke generation systems of existing ultrasonic wave, the superfine spray particle diameter of generation are about 20 μ m, and its speed low-momentum is little, are used for suppressing and when stamping out a fire, droplet is difficult to arrive the flame combustion district; The heavy pressure fine spray shower nozzle need just can produce thin water smoke under the effect of high pressure very, because the pressure height, momentum is big, during the category-B fire such as oil product easily boiled over inhibition, shower nozzle must not be suitable for suppressing and putting out the closely category-B fire of (in 4 meters) away from combustion flame.

Three, technology contents

1, technical problem

The purpose of this utility model is to provide a kind of just can produce mist particle diameter Dv in low pressure (pressure is at 1.2Mpa) scope _0.99Fire-fighting atomization of liquid shower nozzle about 200 μ m.

2, technical scheme

A kind of fire-fighting atomization of liquid shower nozzle, formed by nozzle core and nozzle carrier, it is characterized in that nozzle carrier is the cylinder that a middle part and bottom are hollow shape, the outside in the nozzle carrier bottom is provided with external connection screw, the inboard is provided with internal thread, it is spray orifice that top in nozzle carrier is provided with an axially extending bore, and there is an outside cone angle in the outside of spray orifice, and the inboard of spray orifice is provided with interior cone angle; The external form of nozzle core also be one cylindric, its underpart periphery is provided with two transverse grooves that are provided with of external screw thread, the both sides symmetry in the middle part of it, be provided with an axial blind hole in the bottom of nozzle core, the intersection of the top of this axial blind hole and two transverse grooves forms opening, is provided with oblique slot on the top of nozzle core along the side; The external screw thread of nozzle core is connected with the internal thread spiral of nozzle carrier, the direction of the oblique slot on the nozzle core becomes the angle of 40-50 degree with the axis of nozzle core, the outside cone angle of nozzle carrier and interior cone angle are the cone angle about 90 degree, with nozzle core with after nozzle carrier is connected, outer connecting thread with nozzle carrier is connected with multi-jet nozzle boss again, forms many head-type structure.This thin water smoke generation nozzle can be installed on the fine mist spray head seat of different shape according to various layout, as can be respectively by 1,3,7,12 thin water smoke generation nozzle, install according to certain regular layout, constitute different fine mist spray heads, fine mist spray head is installed in the end of extinguishing chemical penstock, constitute fine water mist fire-extinguishing system, extinguishing chemical arrives nozzle cavity by pressure connection tube and sprays thin water smoke and put out incipient fire in the shower nozzle sphere of action.

3, technique effect

In sum, the utility model is that the mode that adopts single fluid to spray makes extinguishing chemical produce thin water smoke from thin water smoke generation nozzle with vaporific ejection, and the fire-fighting efficiency height is saved extinguishing chemical.The utility model can be applicable to the most of clean liquid extinguishing chemicals that comprise water.Owing to adopt vaporific extinguishing chemical fire extinguishing, the effect of the oxygen at rapid cooling and isolated burning object place is evaporated, played to tiny liquid pearl in a large number, can suppress and put out incipient fire at short notice; And, replace the liquid extinguisher fire extinguishing that big flow directly waters pouring with the extinguishing chemical of atomizing shape, the consumption of extinguishing chemical is significantly reduced; Simultaneously, the extinguishing chemical of atomizing shape can not conduct electricity yet, can not make oil product floating and splash, so can be used for putting out charged fire and oil fire.The effective range of extinguishing chemical can reach 4-5m.The utility model is flexible; make simple; easy to assembly; clean and effective; the fire extinguishing cost is low; be applicable to and suppress to put out inside fire; especially charged; the incipient fire of band wet goods danger; can be according to actual needs different with object of protection, dress up various fine mist spray head with this thin water smoke generation nozzle sets, and carry out layout with differing heights and azimuth fine mist spray head is installed; be used to put out the larger area fire; as the oil storage tank fire; the power transformer fire; automobile fire and building fire especially are fit to suppress and put out ship fire, can be used for the cooling of high temp objects.

Four, description of drawings

Fig. 1 is a general structure schematic diagram of the present utility model.Nozzle carrier 1, internal thread 11, spray orifice 12, outside cone angle 13, interior cone angle 14, outer connecting thread 15 are wherein arranged; Nozzle core 2, external screw thread 21, transverse groove 22, axial blind hole 23, opening 24, oblique slot 25.

Fig. 2 is the general structure schematic diagram of nozzle carrier 1.

Fig. 3 is the structural representation of nozzle core 2.Fig. 4 be nozzle core 2 vertical view.Fig. 5 be nozzle core 2 left view.

Fig. 7 is the distribution schematic diagram of many nozzle structures.Fig. 6 is that the A-A of Fig. 7 is to cutaway view.Nozzle boss 3, Connection Block 4 are wherein arranged.

Fig. 9 is the distribution schematic diagram of another kind of many nozzle structures, and Fig. 8 is that the B-B of Fig. 9 is to cutaway view.

Five, specific embodiments

Embodiment 1:

Fire-fighting is made up of nozzle core 2 and nozzle carrier 1 with atomization of liquid shower nozzle, promptly is made up of the M3 external screw thread 21 of nozzle core 2 and M3 internal thread 11 connections of nozzle carrier 1; The fire-fighting of combining form comprises nozzle boss 3, Connection Block 4 and nozzle three parts composition with atomization of liquid shower nozzle, n fire-fighting is installed in respectively in n the screwed hole of nozzle boss 3 with atomization of liquid shower nozzle, and it is the composition fine mist spray heads that are threaded with M42 with the nozzle boss 3 of atomization of liquid shower nozzle and Connection Block 4 that n fire-fighting is housed.

The internal thread of Connection Block 4 is directly installed on the terminal external screw thread of extinguishing chemical pressure transmission pipeline, with forming fine water mist fire-extinguishing system for the extinguishing chemical transfer pipeline.

Described nozzle carrier 1, one end is M12 external screw thread and M8 internal thread, the long 8mm of external screw thread, the long 10mm of M8 internal thread hole; The outside of the other end of nozzle carrier 1 is 6 square toes and chamfering, vertically with end face opens dark 1mm, the spray orifice 12 of diameter phi 1.8mm, and the outer end of spray orifice is the cone angles of 90 degree, bores high 1mm; The inboard in hole is the cone angle of 90 degree, and the awl height is 3mm, and the awl end and M8 internal thread hole join.

Described nozzle core 2 is high 10mm, and the cylinder of external diameter φ 8mm, an end of post are the high M8 external screw thread of 3mm, the dark straight trough of bilateral symmetry ground cutting 2mm at post middle part, dark 5mm is bored along axis in the bottom of nozzle core, the axial blind hole 23 of diameter phi 4mm, and hole depth is to transverse groove 22 tops; The other end symmetry of post is opened two oblique slots 25 that the wide 1.5mm of 1.5mm is dark, and the direction of groove and the axis of post and end face are all in angle of 45 degrees; Nozzle core 2 is screwed in the nozzle carrier 1 forms nozzle; 7 nozzles are threaded with the M42 of shower nozzle Connection Block 4 and form the fine mist spray head of 7 shower nozzles from nozzle boss 3 outsides are packed 7 M8 holes into.

Described shower nozzle Connection Block 4 one end interior diameters are 28mm, inner chamber and the M42 * 2 external screw thread cylinders of dark 8mm, external screw thread is used for being connected with nozzle boss, the post height is 13mm, the other end is high 10mm, the cylinder of external diameter 30mm, middle part have the M20 internal thread hole, are used for joining with the terminal external screw thread of extinguishing chemical pressure transmission pipeline.

Described nozzle boss 3 is high 33mm; the cylinder of diameter 50mm; the one end is the internal thread of dark 13mmM42 * 2; be used for being connected with Connection Block 4; the middle part of the other end is used to install nozzle with the internal thread hole 9 of the parallel M8 of having of axis; around mesopore, become 30 degree angles evenly to have 6 M8 internal thread holes with mesopore; be used to install 6 mist-generating nozzles; the thin water fog particle of its generation is moderate, and droplet speed is about 2m/s, and the mist field structure is reasonable; can be used for suppressing and putting out the category-B incipient fire; do not damage protected object, environmentally safe is green fire-fighting---the critical component of fine water mist fire-extinguishing system

Embodiment 2:

Fire-fighting uses atomization of liquid nozzle structure and size with embodiment 1; Fine mist spray head comprises nozzle boss 3, Connection Block 4 and nozzle three parts composition, 12 thin water smoke generation nozzles are installed in respectively in 12 screwed holes of nozzle boss 3, the nozzle boss 3 of 12 thin water smoke generation nozzles and Connection Block 4 are housed are the composition fine mist spray head that is threaded with M80.

Described shower nozzle Connection Block 4 one end interior diameters are 60mm, inner chamber and the M80 * 2 external screw thread cylinders of dark 8mm, external screw thread is used for being connected with nozzle boss, the post height is 13mm, the other end is high 10mm, the cylinder of external diameter 30mm, middle part have the M20 internal thread hole, are used for joining with the terminal external screw thread of extinguishing chemical pressure transmission pipeline.

Described nozzle boss 3 is high 41mm, the cylinder of diameter 100mm, the one end is the internal thread of dark 15mm M80 * 2, be used for being connected with Connection Block 4, the middle part of the other end and axis fold 20 degree, the internal thread hole that triangularity evenly has a centre-to-centre spacing 30mm3 M8 is used to install 3 nozzles, evenly has 9 M8 internal thread holes in angle of 45 degrees with central shaft on every side in three holes, is used to install 9 mist-generating nozzles; The thin water smoke spray angle that this fine mist spray head produces reaches 120 degree, and the protection area is big.

Claims

1, a kind of fire-fighting atomization of liquid shower nozzle, formed by nozzle core (2) and nozzle carrier (1), it is characterized in that nozzle carrier (1) is the cylinder that a middle part and bottom are hollow shape, the outside in nozzle carrier (1) bottom is provided with external connection screw (15), the inboard is provided with internal thread (11), it is spray orifice (12) that top in nozzle carrier (1) is provided with an axially extending bore, and there is an outside cone angle (13) in the outside of spray orifice (12), and the inboard of spray orifice (12) is provided with interior cone angle (14); The external form of nozzle core (2) also be one cylindric, its underpart periphery be provided with external screw thread (21), its middle part the both sides symmetry be provided with two transverse grooves (22), be provided with an axial blind hole (23) in the bottom of nozzle core, the intersection of the top of this axial blind hole (23) and two transverse grooves (22) forms opening (24), is provided with oblique slot (25) along the side on the top of nozzle core (2); The external screw thread (21) of nozzle core (2) is connected with internal thread (11) spiral of nozzle carrier (1).

2, fire-fighting according to claim 1 atomization of liquid shower nozzle, the direction that it is characterized in that the oblique slot (25) on the nozzle core (2) becomes the angle of 40-50 degree with the axis of nozzle core (2).

3, fire-fighting according to claim 1 atomization of liquid shower nozzle is characterized in that the outside cone angle (13) of nozzle carrier (1) and interior cone angle (14) are the cone angle about 90 degree.

4, according to claim 1 or 2 or 3 described fire-fighting atomization of liquid shower nozzles, it is characterized in that nozzle core (2) with after nozzle carrier (1) is connected, outer connecting thread (15) with nozzle carrier (1) is connected with multi-jet nozzle boss (3) again, forms many head-type structure.