CN2805823Y

CN2805823Y - Rotating sieve type large-flow fire-extinguishing nozzle

Info

Publication number: CN2805823Y
Application number: CN 200520091525
Authority: CN
Inventors: 张维顶; 郭树林
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-06-28
Filing date: 2005-06-28
Publication date: 2006-08-16
Anticipated expiration: 2015-06-28

Abstract

The utility model relates to an extinguishing device fitting for fire extinguishing, particularly a rotating sieve type large-flow fire-extinguishing nozzle in buildings. The utility model is suitable for installing in a building with large space, and is used for spraying water to extinguish. The rotary screen type big-flow fire extinguishing nozzle is composed of a pipe seat, a support frame, a current divider, a water dividing wheel of a bearing axle seat, and swirl vanes, wherein the pipe seat at the upper part and a fire-extinguishing water supply pipeline are connected and fixed; the lower part is matched with the bearing axle seat in rotation; the tapered current divider is arranged on the upper part of the center of the water dividing wheel of a bearing axle seat, and is connected and fixed by the support frame; the top end of the tapered current divider is over against the center of the pipe seat; a plurality of bar-shaped screen mouths are arranged on the water dividing wheel; the bar-shaped screen mouths are emitted outward from an axle center; more bar-shaped screen mouths are arranged at the inner side, and a few bar-shaped screen mouths are arranged at the outer side; the swirl vanes are also arranged on the water dividing wheel. The rotary screen type big-flow fire extinguishing nozzle, a high altitude flame detector and an electromagnetic valve do linkage control, which solves the problems of an old fire extinguishing nozzle of small sprinkling radius and inopportune opening.

Description

Rotary screen type big-flow fire extinguishing sprayer

Technical field

The utility model relates to a kind of fire-fighting extinguishing device accessory, particularly a kind of rotary screen type big-flow fire extinguishing sprayer device that is used in the structures, and it is applicable in the structure building that is installed in large space, as the usefulness of fire-fighting sprinkling fire.

Background technology

The fire extinguishing sprayer that is using on the market has old-fashioned temperature-sensitive automatic sprinkler, the centrifugal energy nozzle of open type etc. now.The temperature-sensitive automatic sprinkler is to utilize the glass vacuoles of 68 degree to absorb the temperature of fire combustion-gas flows, and making begins to explode when expansion of liquids reaches critical point in the vacuole opens the valve plug sprinkling fire, and its shortcoming is that the time of vacuole blast significantly lags behind fire; The deadly defect of the centrifugal energy nozzle of open type is, two side-thrust spout moments of torsion of its centrifugal energy nozzle are very little, water stain in addition corrosion to the part that is rotatably assorted, in case do not change the function that has just lost the sheet fire extinguishing, its spray radius is little in addition, the layout density of shower nozzle is big, is difficult for being provided with installation and fixing again, the construction costs height.

Summary of the invention

The purpose of this utility model is to propose a kind of rotary screen type big-flow aqueous fluid fire extinguishing sprayer that adopts round rotary return wheel as the watering parts, with the control that links of high-altitude flame detector and magnetic valve, solve that the fire extinguishing sprayer spray radius was little in the past, open untimely problem.

The purpose of this utility model is achieved by the following technical solution:

Rotary screen type big-flow fire extinguishing sprayer is made up of base, support, current divider, bearing wheel axle bed, branch water wheels, swirl vane, the top base of described rotary screen type big-flow fire extinguishing sprayer is connected to a fixed with the fire extinguishing supply channel, bottom and bearing wheel axle bed are rotatably assorted, its minute, the central upper of water wheels was provided with a taper current divider, be connected and fixed by support, the top of the current divider of this taper is over against the center of base.

Rotary screen type big-flow fire extinguishing sprayer, water wheels were provided with several with interior few outer many bar shapeds sieve mouth that outwards radiate in the axle center in described minute, divided on the water wheels also to be provided with swirl vane.

Rotary screen type big-flow fire extinguishing sprayer, water wheels formed revolute pair by bearing wheel axle bed and base in described minute, and bearing is equipped with in inside.

Rotary screen type big-flow fire extinguishing sprayer, the diameter of described base are between 20 millimeters to 100 millimeters, and the diameter that divides water wheels is between 60 millimeters to 500 millimeters.

Advantage of the present utility model and good effect are:

1. this fire extinguishing sprayer has adopted the branch water wheels of round rotation as the watering parts, simple in structure in light weight, utilize the opening cylindrical void of current divider and sieve shape that the water of mouth of pipe ejection is splashed, under the effect of minute water wheels, form big raindrop, and to be sprayed at diameter uniformly be in 20 meters the space, can produce big flow in vertical high-altitude, and the coverage rate that forms big raindrop is to the lower space fire extinguishing water.

Since the branch water wheels that adopted circular rotation as the watering parts, spray radius is bigger, the layout density of shower nozzle is little, is provided with easily to install and fixing, has reduced construction costs.

3. this shower nozzle and high-altitude flame detector and the magnetic valve control that links, in case breaking out of fire in monitoring range, its detector is just opened the fire extinguishing that discharges water of water pump and magnetic valve, reaction speed is fast.

Description of drawings

Fig. 1 is the utility model embodiment 1 rotary screen type big-flow fire extinguishing sprayer structural representation;

Fig. 2 is 1 fen water wheels parts of the utility model embodiment front views;

Fig. 3 is the utility model embodiment 2 rotary screen type big-flow fire extinguishing sprayer structural representations;

Fig. 4 is 2 fens water wheels parts of the utility model embodiment front views;

Fig. 5 is system's fire-fighting work schematic diagram.

The specific embodiment

Embodiment 1

The base of rotary screen type big-flow fire extinguishing sprayer (1) and system's fire extinguishing pipeline are connected, and are provided with magnetic valve (9) in its upper end, and magnetic valve (9) is opened by flame detector (10) control.As shown in Figure 1 and Figure 2, the current divider (3) of base (1) lower end is connected to a fixed by support (2), the tip of the current divider of taper (3) is over against the center, lower end of base (1), the one circular water wheels (6) that divide are housed below current divider (3), be evenly equipped with a plurality of bar shapeds sieves mouthful (8) that outwards radiate with the axle center on this minute water wheels (6), also have two swirl vanes (7) simultaneously, this minute water wheels (6) form revolute pair by bearing wheel axle bed (4) and base (1), and bearing is equipped with in inside.

Embodiment 2

As shown in Figure 3, Figure 4, embodiment 2 and embodiment 1 are roughly the same, and just shape, the structure of two swirl vanes change to some extent, the spray radius the when change of this shape, structure can change fire extinguishing.

This big-flow fire extinguishing sprayer is when the fire extinguishing system project installation, as shown in Figure 5, this project large space place is 30 meters high, sprinkler tip (11), (12), (13), (14) are vertically mounted on indoor canopy top, occupy downwards high, form one group, at its front end separately a magnetic valve (9) is installed, they are by a flame detector (10) control and the unlatching of moving simultaneously; Sprinkler tip (11), (12), (13), (14) are communicated with water system and fire pump (15), and flame detector (10) is connected with bus switch board (16) motor-driven valve (9).(above-mentioned sprinkler tip (11), (12), (13), (14) all are DN50).

Describe rotary screen type big-flow sprinkler tip (11) in detail below in conjunction with Fig. 5, (12), (13), (14) and magnetic valve (9), the course of work of flame detector (10): at first system is in holding state, flame detector (9) monitoring in real time in 30 meters high-altitudes, at this moment in the scope of monitoring point of origin (5) has taken place suddenly, meanwhile flame detector (10) receives the optical signal that fire sends immediately, after relatively judgement is confirmed to be fire, export the signal of telecommunication immediately, arrive bus switch board (16) through bus transfer, bus switch board this moment (16) control magnetic valve (9) is opened, fire pump (15) starts water supply, current enter fire extinguishing sprayer (11) through magnetic valve (9), (12), (13), (14) in, current are distributed uniformly via taper current divider (3) therebetween, be falling on the branch water wheels (6) of fan-shaped, almost most water is splashed in the bar shaped sieve mouthful (8) simultaneously, also have current also to splash simultaneously on the swirl vane (7), make support (2), bearing wheel axle bed (4), current divider (3), branch water wheels (6) are subjected to the effect of torsional forces and rotate, impel of the route operation of the current of big flow by sieve mouthful (8) regulation, form continuous big raindrop uniformly, drop on the point of origin (5) from 30 meters high-altitudes, four fire extinguishing sprayers do not have drawback in the scope of its monitoring simultaneously, all cover not have and block, the raindrop penetration power is strong, watering effect highly significant.Wherein no matter point of origin (5) occurs in any orientation of protection area, and the water under spilling can both put out point of origin (5), and can send alarm signal simultaneously, stops water spray after fire goes out automatically.

Claims

1. rotary screen type big-flow fire extinguishing sprayer, it is characterized in that dividing water wheels (6), swirl vane (7) to form by base (1), support (2), current divider (3), bearing wheel axle bed (4), the top base (1) of described rotary screen type big-flow fire extinguishing sprayer is connected to a fixed with the fire extinguishing supply channel, bottom and bearing wheel axle bed (4) are rotatably assorted, the central upper of its minute water wheels (6) is provided with a taper current divider (3), be connected and fixed by support (2), the top of the current divider of this taper (3) is over against the center of base (1).

2. rotary screen type big-flow fire extinguishing sprayer as claimed in claim 1, it is characterized in that described minute water wheels (6) be provided with several with the outside interior few outer many bar shapeds sieve mouthful (8) of radiation in axle center, divide that (6) also are provided with swirl vane (7) on the water wheels.

3. rotary screen type big-flow fire extinguishing sprayer as claimed in claim 1, it is characterized in that described minute water wheels (6) form revolute pair by bearing wheel axle bed (4) and base (1), bearing is equipped with in inside.

4. rotary screen type big-flow fire extinguishing sprayer as claimed in claim 1, the diameter that it is characterized in that described base (1) are between 20 millimeters to 100 millimeters, and the diameter that divides water wheels (6) is between 60 millimeters to 500 millimeters.