CN215608932U

CN215608932U - Foam generator

Info

Publication number: CN215608932U
Application number: CN202121604190.XU
Authority: CN
Inventors: 孙文喜; 孙嘉林; 王雪岩; 许莹莹
Original assignee: Xuzhou Xingshun Fire Technology Co ltd
Current assignee: Xuzhou Xingshun Fire Technology Co ltd
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2022-01-25
Anticipated expiration: 2031-07-15

Abstract

The utility model discloses a foam generator, which comprises a support frame and a foam generator body which is rotatably connected to the support frame, wherein the foam generator body comprises a shell, the bottom of the shell is provided with a mounting hole, a liquid inlet pipe is arranged in the mounting hole, one side of the shell is provided with a jet orifice, the jet orifice is connected with an outlet flange, the shell and the outlet flange are positioned on the upper side of the support frame, the mounting hole at the lower end of the shell is fixedly connected with an outer pipe, the liquid inlet pipe is positioned on the inner side of the outer pipe, the outer pipe can rotate on the periphery of the liquid inlet pipe, the outer pipe is connected with a first gear, the support frame is connected with a motor, the output end of the motor is connected with a second gear, the first gear is meshed with the second gear, and the outer pipe is rotatably connected with the upper part of the support frame. The outer pipe and the shell can be driven to rotate on the support frame through the motor, so that the jet orifice rotates, omnibearing jetting is achieved, and the fire extinguishing efficiency is improved.

Description

Foam generator

Technical Field

The utility model relates to the technical field of fire fighting equipment, in particular to a foam generator.

Background

The foam generator is a device which mixes the foam mixed liquid generated by the proportional mixing device with the sucked air to generate foam, sprays the foam on the surface of the combustion liquid to form a foam layer, isolates the air, and absorbs heat, thereby extinguishing the fire.

But present foam generator all is fixed mounting on external equipment, can only spray the foam towards a direction when taking place the conflagration, can't carry out all-round putting out a fire to all around, greatly reduced the efficiency of putting out a fire.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a foam generator aiming at the defects in the prior art, and aims to solve the problem that the existing foam generator can only spray foam in one direction, so that the fire extinguishing efficiency is low.

In order to achieve the purpose, the utility model provides the following technical scheme:

a foam generator comprises a supporting frame, a foam generator body which is rotatably connected on the supporting frame, the foam generator body comprises a shell, a mounting hole is arranged at the bottom of the shell, a liquid inlet pipe is arranged in the mounting hole, the upper end of the liquid inlet pipe is positioned in the shell, the lower end of the liquid inlet pipe is positioned outside the shell, a jet orifice is arranged on one side of the shell, an outlet flange is connected at the jet orifice, the shell and the outlet flange are positioned on the upper side of a support frame, an outer pipe is fixedly connected at the mounting hole at the lower end of the shell, the liquid inlet pipe is positioned on the inner side of the outer pipe, the outer pipe can rotate on the periphery of the liquid inlet pipe, the first gear is connected to the outer pipe, the motor is connected to the support frame, the second gear is connected to the output end of the motor, the first gear is meshed with the second gear, the outer pipe is rotatably connected with the upper portion of the support frame, and the outer pipe and the shell can be driven to rotate on the support frame through the motor.

Preferably, the support frame includes the base, be fixed in the curb plate of base both sides, be fixed in the roof on the curb plate, outer tube passes through rotation bearing rotatable coupling on the roof, the motor is fixed in on one of them curb plate, has seted up the fixed orifices on another curb plate, can install the support frame on external equipment through the fixed orifices.

Preferably, the lower end of the liquid inlet pipe extends to the outer side of the outer pipe, the lower end of the liquid inlet pipe is connected with an inlet flange, a nozzle is arranged in the liquid inlet pipe, a through hole is formed in the wall of the nozzle, the lower part of the liquid inlet pipe is connected with an air inlet pipe, the outer end of the air inlet pipe is connected with a porous cylinder, and air enters the liquid inlet pipe from the porous cylinder and is mixed with the foam mixed liquid; a sealing gasket is arranged at the position of the mounting hole in the shell and sleeved on the periphery of the liquid inlet pipe, and the sealing gasket plays a role in sealing and prevents generated foam from overflowing from the joint of the liquid inlet pipe and the shell; the inner end of the jet orifice is connected with a pressure plate.

The utility model has the beneficial effects that:

when a fire disaster occurs, the foam mixed liquid enters the shell from the liquid inlet pipe, air enters the shell through the porous cylinder and is mixed with the foam mixed liquid, so that foam is formed, and the foam is sprayed out from the spray opening to play a role in extinguishing the fire. The motor works, and the outer pipe and the shell are driven to rotate under the action of the second gear and the first gear, so that the jet orifice rotates, the omnibearing jet is realized, and the fire extinguishing efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the foam generator body;

in the figure, 1-support frame, 101-base, 102-side plate, 103-top plate, 104-fixing hole, 2-shell, 3-liquid inlet pipe, 4-jet orifice, 5-outlet flange, 6-outer pipe, 7-first gear, 8-motor, 9-second gear, 10-rotary bearing, 11-inlet flange, 12-nozzle, 13-air inlet pipe, 14-porous cylinder, 15-sealing gasket and 16-pressing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, a foam generator comprises a support frame 1, a foam generator body rotatably connected to the support frame 1, the foam generator body comprises a housing 2, a mounting hole is arranged at the bottom of the housing 2, a liquid inlet pipe 3 is arranged in the mounting hole, the upper end of the liquid inlet pipe 3 is arranged in the housing 2, the lower end of the liquid inlet pipe 3 is arranged outside the housing 2, a spray opening 4 is arranged at one side of the housing 2, an outlet flange 5 is connected to the spray opening 4, the housing 2 and the outlet flange 5 are arranged at the upper side of the support frame 1, the foam generator is characterized in that an outer pipe 6 is fixedly connected to the mounting hole at the lower end of the housing 2, the liquid inlet pipe 3 is arranged at the inner side of the outer pipe 6, the outer pipe 6 can rotate at the periphery of the liquid inlet pipe 3, a first gear 7 is connected to the outer pipe 6, a motor 8 is connected to the support frame 1, a second gear 9 is connected to the output end of the motor 8, and the first gear 7 is meshed with the second gear 9, the outer tube 6 is rotatably connected with the upper part of the support frame 1, and the outer tube 6 and the shell 2 can be driven to rotate on the support frame 1 through the motor 8.

The support frame 1 comprises a base 101, side plates 102 fixed on two sides of the base 101, and a top plate 103 fixed on the side plates 102, the outer tube 6 is rotatably connected to the top plate 103 through a rotary bearing 10, the motor 8 is fixed on one of the side plates 102, a fixing hole 104 is formed in the other side plate 102, and the support frame 1 can be mounted on external equipment through the fixing hole 104.

The lower end of the liquid inlet pipe 3 extends to the outer side of the outer pipe 6, the lower end of the liquid inlet pipe 3 is connected with an inlet flange 11, a nozzle 12 is arranged in the liquid inlet pipe 3, the wall of the nozzle 12 is provided with a through hole, the lower part of the liquid inlet pipe 3 is connected with an air inlet pipe 13, the outer end of the air inlet pipe 13 is connected with a porous cylinder 14, and air enters the liquid inlet pipe 3 from the porous cylinder 14 and is mixed with foam mixed liquid; the inner end of the jet opening 4 is connected with a pressure plate 16. Be located mounting hole department in casing 2 and be equipped with sealed 15, sealed 15 covers in the periphery of feed liquor pipe 3 of filling up, and sealed 15 plays sealed effect, prevents that the foam that produces from overflowing by the junction of feed liquor pipe 3 and casing 2.

The using method of the utility model comprises the following steps:

when a fire breaks out, the foam mixed liquid passes through the nozzle 12 from the liquid inlet pipe 3 to form diffused atomized jet flow, negative pressure is generated around the atomized jet flow, so that a large amount of air is sucked from the porous cylinder 14 to form foam which enters the shell 2, and the foam is sprayed out from the spray opening 4 to play a role in extinguishing the fire. When the nozzle 4 is shot in need rotation, motor 8 works, drives second gear 9 and rotates, and second gear 9 drives first gear 7 and rotates to drive outer tube 6 and casing 2 and rotate, thereby make the injection mouth 4 rotatory, in order to realize omnidirectional injection, improve the efficiency of putting out a fire.

The foam generator device design model provides foam mixed liquid through a foam mixing device, forms diffused atomized jet when flowing into an inlet end of the generator and passing through a nozzle, generates negative pressure around the generator, sucks a large amount of air to form foam, inputs the foam into a storage tank through a foam spray pipe or a guide plate, flows down along the wall (a flow guide groove) of the tank, stably covers the combustion liquid level, and achieves the purpose of fire extinguishing by utilizing the cooling and suffocation effects of the foam.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A foam generator comprises a support frame (1) and a foam generator body which is rotatably connected onto the support frame (1), wherein the foam generator body comprises a shell (2), a mounting hole is formed in the bottom of the shell (2), a liquid inlet pipe (3) is arranged in the mounting hole, the upper end of the liquid inlet pipe (3) is positioned in the shell (2), the lower end of the liquid inlet pipe (3) is positioned outside the shell (2), a jet opening (4) is arranged on one side of the shell (2), an outlet flange (5) is connected to the jet opening (4), the shell (2) and the outlet flange (5) are positioned on the upper side of the support frame (1), the foam generator is characterized in that an outer pipe (6) is fixedly connected to the mounting hole at the lower end of the shell (2), the liquid inlet pipe (3) is positioned on the inner side of the outer pipe (6), the outer pipe (6) can rotate on the periphery of the liquid inlet pipe (3), a first gear (7) is connected onto the outer pipe (6), be connected with motor (8) on support frame (1), the output of motor (8) is connected with second gear (9), and first gear (7) and second gear (9) meshing are connected, and outer tube (6) and the upper portion rotatable coupling of support frame (1) can drive outer tube (6) and casing (2) through motor (8) and rotate on support frame (1).

2. The foam generator as claimed in claim 1, wherein the supporting frame (1) comprises a base (101), side plates (102) fixed on two sides of the base (101), and a top plate (103) fixed on the side plates (102), the outer tube (6) is rotatably connected to the top plate (103) through a rotary bearing (10), the motor (8) is fixed on one of the side plates (102), the other side plate (102) is provided with a fixing hole (104), and the supporting frame (1) can be mounted on an external device through the fixing hole (104).

3. The foam generator as claimed in claim 2, characterized in that the lower end of the liquid inlet pipe (3) extends to the outside of the outer pipe (6), the lower end of the liquid inlet pipe (3) is connected with an inlet flange (11), a nozzle (12) is arranged in the liquid inlet pipe (3), the wall of the nozzle (12) is provided with a through hole, the lower part of the liquid inlet pipe (3) is connected with an air inlet pipe (13), and the outer end of the air inlet pipe (13) is connected with a porous cylinder (14).

4. Foam generator according to claim 2, characterized in that a sealing gasket (15) is arranged in the housing (2) at the mounting hole, the sealing gasket (15) being fitted around the liquid inlet pipe (3).

5. Foam generator according to any of claims 1-4, characterized in that a pressure plate (16) is connected to the inner end of the jet opening (4).