CN219579780U - Non-pressure-storage suspension type superfine dry powder extinguishing device - Google Patents

Abstract

The utility model provides a non-pressure-storage suspension type superfine dry powder extinguishing device, wherein a guide plate with a certain radian is arranged on the outer surface of a gas generator tube, the guide plate can be inclined at a certain angle, air injection holes arranged on the gas generator tube are inclined at corresponding angles, the filling coefficient of superfine dry powder extinguishing agent and the blasting pressure range of a blasting piece are reasonably selected, after the gas generator is sprayed and before the blasting pressure is not reached, superfine dry powder is blown up and rotated by high-speed air flow, diffuse reflection is generated after the superfine dry powder is sprayed to a fire extinguishing agent storage tank, and the superfine dry powder is uniformly distributed in a storage space. The beneficial effects are that: the superfine dry powder extinguishing agent is sprayed far away, uniformly covers the protection range, uniformly fills the protection space, and improves the extinguishing effect; the residual injection rate of the fire extinguishing agent is reduced, and the utilization rate of the fire extinguishing agent is improved.

Description

Non-pressure-storage suspension type superfine dry powder extinguishing device

Technical Field

The utility model relates to the technical field of fire extinguishing devices, in particular to a suspension type superfine dry powder fire extinguishing device.

Background

The suspension type superfine dry powder automatic fire extinguishing device is mainly applied to industrial and civil buildings, such as an electronic computer room, a data processing center, a telecommunication facility, a process control center, an expensive medical facility, expensive industrial equipment, libraries, museums, artists, clean rooms, anechoic rooms, emergency electric power facilities, inflammable liquid storage areas and the like; the suspension type superfine dry powder automatic fire extinguishing device is generally arranged above the protected object in a hanging or wall-mounted mode. The suspension type superfine dry powder automatic fire extinguisher is divided into a pressure storage type and a non-pressure storage type, wherein the non-pressure storage type is also called gas production driving type, and the solid gas production agent of the trigger generating device generates a large amount of other (mainly nitrogen) gas to drive the fire extinguishing agent to be sprayed out. The non-pressure storage fire extinguishing device has the advantages of non-pressure storage and good safety; the method has wide adaptability to the environment temperature, particularly has good low temperature resistance, and makes up the defects of the pressure storage type product; is particularly suitable for being used in occasions with guarded people and low environmental temperature, and has wide application.

When the fire extinguishing device is actually used, when the superfine dry powder in the fire extinguishing device is released from the nozzle, the concentration below the nozzle is higher, the surrounding fire extinguishing concentration is lower, and the superfine dry powder extinguishing agent mainly plays a role in extinguishing fire through a chemical inhibition mechanism, so that the fire extinguishing efficiency is influenced, and the fire in the surrounding area is not easy to extinguish; the spray residual rate of the superfine dry powder reaches about 5 percent.

Disclosure of Invention

In order to solve the problems, the utility model provides a non-pressure-storage suspension type superfine dry powder extinguishing device with uniform spraying of superfine dry powder and low spraying residual rate. The utility model provides a non-pressure-storage suspension type superfine dry powder extinguishing device which adopts the following technical scheme:

the utility model provides a non-pressure storage suspension type superfine dry powder extinguishing device, includes fire extinguishing agent storage jar, be provided with the installing support on the fire extinguishing agent storage jar, be provided with the gas generator assembly in the fire extinguishing agent storage jar, the gas generator assembly constitute by gas generator, gas generator section of thick bamboo, upper cover, gas generator section of thick bamboo surface is equipped with fumarole, guide plate, gas generator is filled in the gas generator section of thick bamboo, fire extinguishing agent storage jar bottom is provided with the spout assembly, fire extinguishing agent storage jar top is provided with starting drive, signal feedback device, starting drive is used for controlling the gas generator assembly, signal feedback device is used for feeding back the signal that the gas generator erupts, the spout assembly comprises spout external connection, clamping ring, rupture disk etc..

Preferably, the guide plate has a certain radian, high-speed air flow generated by spraying the gas generating agent is sprayed onto the guide plate and sprayed out along the tangential direction of the radian of the guide plate, and the superfine dry powder extinguishing agent is stirred and dispersed in the space of the extinguishing agent storage tank.

Preferably, the filling coefficient of the superfine dry powder extinguishing agent is 0.75-0.85 so as to ensure that the superfine dry powder extinguishing agent can be stirred and uniformly dispersed, and the economy of the device is also considered.

Preferably, the bursting pressure of the bursting disc is 1.2-1.6MPa, so that the superfine dry powder extinguishing agent can be uniformly mixed at the stage before the gas generating agent bursts to reach the bursting pressure; the explosion pressure is reached, the explosion piece is broken, the uniformly mixed superfine dry powder extinguishing agent is sprayed at higher pressure, the spraying distance is larger, the superfine dry powder uniformly covers the protection range, and the protection space is uniformly filled; reducing the residual injection rate of the fire extinguishing agent; meanwhile, the use safety of the fire extinguishing device is ensured.

Preferably, the baffle is inclined at an angle, and the preferred range of inclination is: the high-speed air flow generated by spraying the gas generating agent is oriented to the dry powder direction stored at the bottom of the fire extinguishing agent storage tank at 20-60 degrees, the corresponding air spraying holes are arranged along the inclined direction of the guide plate, the high-speed air flow blows up and rotates the superfine dry powder, and diffuse reflection is generated after the superfine dry powder is sprayed to the fire extinguishing agent storage tank, so that the superfine dry powder is more beneficial to being uniformly distributed in a storage space.

The utility model has the following beneficial technical effects:

1. the surface of the gas generating agent cylinder is provided with guide plates, the gas generating agent spraying holes are arranged according to the installation angle of the guide plates, the high-speed air flow blows up the superfine dry powder, the superfine dry powder rotates and moves, diffuse reflection is generated after the superfine dry powder is sprayed to the fire extinguishing agent storage tank, and the superfine dry powder is uniformly distributed in the storage space; the superfine dry powder extinguishing agent is sprayed in a larger distance, the superfine dry powder uniformly covers the protection range, the protection space is uniformly filled, and the extinguishing effect is improved. 2. The residual injection rate of the fire extinguishing agent is reduced, and the utilization rate of the fire extinguishing agent is improved.

Drawings

Fig. 1 is a schematic overall structure of an embodiment of the present utility model.

Reference numerals illustrate: 1. the fire extinguishing device comprises a starting device wire, a signal feedback device wire, an upper cover, a gas generator cylinder, a guide plate, a gas spraying hole, a fire extinguishing agent storage tank, a nozzle outer interface, a rupture disk, a pressure ring, a nozzle assembly, a bracket interface, a gas generator cylinder upper cover, a mounting bracket and a bracket, wherein the gas generating agent cylinder upper cover is arranged on the upper cover, the gas spraying hole is arranged on the upper cover, the fire extinguishing agent storage tank is arranged on the upper cover, the nozzle outer interface is arranged on the upper cover, the rupture disk is arranged on the upper cover, the pressure ring is arranged on the lower cover, the nozzle assembly is arranged on the lower cover, the bracket is arranged on the bracket, and the gas generator cylinder upper cover is arranged on the upper cover.

Description of the embodiments

The present utility model will be described in further detail with reference to fig. 1.

The embodiment of the utility model discloses a non-pressure storage type suspension superfine dry powder extinguishing device, referring to figure 1, comprising an extinguishing agent storage tank 7,

a bracket interface 12 is arranged on the fire extinguishing agent storage tank 7, and a bracket 16 is welded on the upper cover 3; the gas generating agent cylinder 4 is connected with a boss of the gas generating agent cylinder upper cover 14 through threads, the gas generating agent 13 is arranged inside the gas generating agent cylinder 4, and an electric detonating head connected with the starting device line 1 and a temperature sensing switch connected with the signal feedback device line are in contact with the gas generating agent 13 inside the gas generating agent cylinder 4; the gas generating agent cylinder 4 is provided with a plurality of air holes of a roller, a plurality of guide plates 5 are welded on the gas generating agent cylinder, the plates incline 5 at a certain angle towards the bottom of the fire extinguishing agent storage tank 7, the air holes 6 are arranged along the direction of the incline of the guide plates 5, and the distance between the air holes 6 and the guide plates 5 is required to ensure that the air flow generated by the gas generating agent is sprayed onto the guide plates 5; the upper part of the bracket interface 12 is arranged on the fire extinguishing agent storage tank 7 and is connected with the upper cover 14 of the gas producing cylinder, and the upper cover 3 is connected with the bracket interface 12 through threads; the nozzle assembly 11 comprises a nozzle outer interface 8 and a pressing ring 10, and a rupture disk 9 is arranged on the upper part of the pressing ring 10; after the superfine dry powder extinguishing agent meeting the product standard number is filled in the extinguishing agent storage tank 7, an inner joint arranged at the bottom of the extinguishing agent storage tank 7 is connected with a joint 8 of the nozzle assembly 11 through threads, and the inner joint arranged at the bottom of the extinguishing agent storage tank 7 is tightly sealed by the rupture disk 9; the mounting bracket 15 is arranged at the middle position of the upper bottom of the protection space and is connected with the bracket 16 of the non-pressure-storage suspension type superfine dry powder extinguishing device which is arranged above the protected object.

When the detector sends out alarm signals from other types of fire alarm detectors such as smoke, temperature-sensing fire alarm detectors, combustible gas alarm detectors and the like which are arranged in the protection area, the alarm signals are transmitted to the fire alarm controller; when the alarm signal accords with the condition of confirming fire alarm set by the fire alarm controller, the linkage controller starts the audible and visual alarm, the sent signal for starting the fire extinguishing device is transmitted to an electric detonating head arranged in the gas generating agent cylinder through a starting device wire 1, the gas generating agent in the gas generating agent cylinder 4 is triggered, a large amount of high-pressure gas is generated and is sprayed onto the guide plate 5 through the spraying holes 6, fast rotating air flow is generated in the fire extinguishing agent storage tank 7, the superfine dry powder is driven to rotate and is contacted with the interior of the fire extinguishing agent storage tank 7 to generate reflection, and the superfine dry powder in the fire extinguishing agent storage tank is fully and uniformly mixed until the burst pressure of the burst sheet is reached; when the pressure in the fire extinguishing agent storage tank 1 reaches the bursting pressure, the bursting disc is broken, the evenly mixed superfine dry powder fire extinguishing agent is sprayed at higher pressure, the spraying distance is larger, the superfine dry powder evenly covers the protection range, and the protection space is evenly filled; the residual injection rate of the fire extinguishing agent is reduced, and is less than 2%, so that the standard requirement that the residual injection rate is less than 5% specified in a dry powder extinguishing device (XF 602-2013) is met; meanwhile, the use safety and good economy of the fire extinguishing device are ensured.

The foregoing are examples of the present utility model, and are not intended to limit the scope of the present utility model in any way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (5)

1. The utility model provides a non-pressure storage suspension type superfine dry powder extinguishing device, includes fire extinguishing agent storage jar, be provided with the installing support on the fire extinguishing agent storage jar, be provided with the gas generator assembly in the fire extinguishing agent storage jar, the gas generator assembly constitute by gas generator, gas generator section of thick bamboo, upper cover, gas generator section of thick bamboo surface is equipped with the fumarole, gas generator is filled in the gas generator section of thick bamboo, fire extinguishing agent storage jar bottom is provided with the spout assembly, fire extinguishing agent storage jar top is provided with starting drive, signal feedback device, starting drive is used for controlling the gas generator assembly, signal feedback device is used for feeding back the signal that the gas generator erupts, the spout assembly comprises spout external connection mouth, clamping ring, rupture disc, its characterized in that gas generator section of thick bamboo surface sets up the guide plate.

2. The non-pressure-storage suspension type superfine dry powder fire extinguishing device according to claim 1, wherein the deflector has an arc shape, and the portion of the deflector having the arc shape shields the air injection hole.

3. The non-pressure-storage suspension type superfine dry powder fire extinguishing device according to claim 2, wherein the deflector is inclined at a certain angle, and the air injection holes are inclined at the same angle according to the deflector.

4. The non-pressure-storage suspension type superfine dry powder fire extinguishing device according to claim 1, wherein the filling coefficient of the superfine dry powder fire extinguishing agent is 0.75-0.85.

5. The non-pressure-storage suspension type superfine dry powder fire extinguishing device according to claim 1, wherein the bursting pressure of the bursting disc is 1.2-1.6MPa.