阅读说明：本技术 一种可双向泄压的气溶胶灭火装置及其泄压方法 (Aerosol fire extinguishing device capable of bidirectionally relieving pressure and pressure relieving method thereof ) 是由 张俊峰 赵恒� 张晓剑 徐大军 张晋 于 2019-10-31 设计创作，主要内容包括：本发明公开一种可双向泄压的气溶胶灭火装置及其泄压方法,装置部分包括内筒,所述内筒内设有灭火剂药柱,所述内筒顶部与顶盖连接,所述顶盖上开设有多个喷孔,所述内筒外侧设有外筒,外筒顶部设有挡架,外筒底部设有泄放孔；另外本发明还公开相应的泄压方法；本发明的装置结构紧凑简单,可靠性高,安装方便；能够在灭火剂发生爆燃时高效地对其进行泄压过程,避免灭火剂筒体在泄压时因反冲力的作用发生移动的现象,保证了周围设备的安全性。(The invention discloses an aerosol fire extinguishing device capable of bidirectionally relieving pressure and a pressure relieving method thereof, wherein the device part comprises an inner cylinder, a fire extinguishing agent grain is arranged in the inner cylinder, the top of the inner cylinder is connected with a top cover, a plurality of spray holes are formed in the top cover, an outer cylinder is arranged on the outer side of the inner cylinder, a blocking frame is arranged at the top of the outer cylinder, and a discharge hole is formed in the bottom of the outer cylinder; in addition, the invention also discloses a corresponding pressure relief method; the device has the advantages of compact and simple structure, high reliability and convenient installation; the pressure relief process can be efficiently carried out on the fire extinguishing agent when the fire extinguishing agent detonates, the phenomenon that the fire extinguishing agent cylinder moves due to the action of recoil force during pressure relief is avoided, and the safety of surrounding equipment is guaranteed.)

1. The utility model provides an aerosol extinguishing device that can two-way pressure release, includes inner tube (1), be equipped with the fire extinguishing agent grain in inner tube (1), inner tube (1) top is connected with top cap (3), a plurality of orifices (4), its characterized in that have been seted up on top cap (3): an outer barrel (5) is arranged on the outer side of the inner barrel (1), a blocking frame (6) is arranged at the top of the outer barrel (5), and a discharge hole (7) is formed in the bottom of the outer barrel (5).

2. An aerosol fire extinguishing apparatus with bi-directional pressure relief according to claim 1, wherein: the inner tube (1) surface cover is equipped with collar (8), collar (8) tip is equipped with through hole (9), collar (8) periphery installation is hugged closely in urceolus (5).

3. An aerosol fire extinguishing apparatus with bi-directional pressure relief according to claim 2, wherein: the outer cylinder (5) comprises an upper outer cylinder (5.1) and a lower outer cylinder (5.2) which are mutually butted, and the upper outer cylinder (5.1) and the lower outer cylinder (5.2) are sleeved and fixed on the periphery of the mounting ring (8).

4. An aerosol fire extinguishing apparatus with bi-directional pressure relief as claimed in claim 3, wherein: and the bottom of the upper outer barrel (5.1), the top of the lower outer barrel (5.2) and the periphery of the mounting ring (8) are provided with screw holes (10) for penetrating screws.

5. An aerosol fire extinguishing apparatus with bi-directional pressure relief as claimed in claim 3, wherein: go up the position surface of urceolus (5.1) and urceolus (5.2) butt joint down and still be equipped with tight hoop (11), tight hoop (11) include two articulated semicircular hoop (11.1) of connecting, and semicircular hoop (11.1) other end is equipped with mounting panel (11.2), mounting hole (11.3) have been seted up on mounting panel (11.2).

6. An aerosol fire extinguishing apparatus with bi-directional pressure relief according to claim 1, wherein: a separation net (2) is further arranged above the fire extinguishing agent grain, and a cooling agent is arranged on the separation net (2).

7. An aerosol fire extinguishing apparatus with bi-directional pressure relief according to claim 1, wherein: the fire extinguishing agent grain contacts with the initiating end of the starting part, and the starting part is of a heat-sensitive wire structure or an electric ignition head structure.

8. A method for pressure relief of an aerosol fire extinguishing system according to any one of claims 1 to 7, wherein: it comprises the following steps:

step 1): the fire extinguishing agent grain in the inner cylinder (1) is ignited by the starting part to generate hot aerosol gas, and the hot aerosol gas is sprayed out from the top cover (3) through the spray holes (4) to realize the fire extinguishing process;

step 2): when the fire extinguishing agent explosive column is deflagrated, a large amount of hot air flow is generated and accumulated in the inner cylinder, the pressure in the inner cylinder (1) is suddenly increased and the top cover (3) is rushed out, and the top cover (3) is separated from the inner cylinder (1) and then blocked by the blocking frame (6);

step 3): part of hot air flow is sprayed out of the device from the spray hole (4) of the top cover (3) to realize the forward pressure relief process;

step 4): the other part of hot air flow enters a gap between the outer side wall of the inner cylinder (1) and the inner side wall of the outer cylinder (5) along the gap between the top cover (3) and the top of the inner cylinder (1), and then is sprayed out of the device through a discharge hole (7) at the bottom of the outer cylinder (5) to realize a reverse pressure release process.

Technical Field

The invention relates to the technical field of fire fighting, in particular to an aerosol fire extinguishing device capable of bidirectionally relieving pressure and a pressure relieving method thereof.

Background

The occurrence of fire often causes great loss to life and property of people, and timely and effective fire fighting equipment can eliminate the fire in the bud. In modern work and living environment, in the relatively inclosed places such as vehicle, electronic equipment, domestic appliance and kitchen, the problem of putting out a fire can effectively be solved to ordinary portable extinguishing device, but to some unmanned on duty's enclosure space, like city utility tunnel, application places such as small-size unmanned on duty basic station, if use current portable extinguishing device, it often can lead to causing harm to human body or property because of putting out a fire untimely. Consequently, it is indispensable at the fixed automatic fire extinguishing device of this type space installation, however current fixed fire extinguishing device is mostly only to consider to set up the pressure release hole or set up comparatively complicated letting out and explode the structure in one side, if the explosion takes place for the fire extinguishing agent after the detonation, it can not carry out the pressure release process fast to carry out the pressure release through one side pressure release hole alone, make near the pressure release hole region extremely easily produce and burst, and the pressure release in-process fire extinguishing agent barrel extremely easily takes place to remove and damage surrounding equipment because the effect of recoil force, and use comparatively complicated letting out and explode the cost that the structure then can make whole fire extinguishing device expensive, the cost risees.

Disclosure of Invention

The invention aims to overcome the defects and provides an aerosol fire extinguishing device capable of bidirectionally relieving pressure and a pressure relieving method thereof.

In order to solve the technical problems, the invention adopts the technical scheme that: the aerosol fire extinguishing device capable of bidirectionally relieving pressure comprises an inner barrel, wherein a fire extinguishing agent grain is arranged in the inner barrel, the top of the inner barrel is connected with a top cover, a plurality of spray holes are formed in the top cover, an outer barrel is arranged on the outer side of the inner barrel, a blocking frame is arranged at the top of the outer barrel, and a discharge hole is formed in the bottom of the outer barrel.

Preferably, the surface of the inner cylinder is sleeved with a mounting ring, a through hole is formed in the end of the mounting ring, and the outer cylinder is mounted close to the periphery of the mounting ring.

More preferably, the outer cylinder comprises an upper outer cylinder and a lower outer cylinder which are mutually butted, and the upper outer cylinder and the lower outer cylinder are sleeved and fixed on the periphery of the mounting ring.

More preferably, the bottom of the upper outer cylinder, the top of the lower outer cylinder and the periphery of the mounting ring are provided with screw holes for penetrating screws.

More preferably, the surface of the butt joint position of the upper outer cylinder and the lower outer cylinder is further sleeved with a hoop tightening ring, the hoop tightening ring comprises two hinged semicircular hoops, the other end of each semicircular hoop is provided with a mounting plate, and the mounting plate is provided with a mounting hole.

Preferably, a separation net is further arranged above the fire extinguishing agent grain, and a cooling agent is arranged on the separation net.

Preferably, the fire extinguishing agent grain is in contact with an initiating end of an actuating member, and the actuating member is a heat sensitive wire structure or an electric ignition head structure.

In addition, the invention also discloses a pressure relief method of the aerosol fire extinguishing device, which comprises the following steps:

step 1): the fire extinguishing agent grain in the inner cylinder is ignited by the starting part to generate hot aerosol gas, and the hot aerosol gas is sprayed out from the top cover through the spray holes to realize the fire extinguishing process;

step 2): when the fire extinguishing agent explosive column is deflagrated, a large amount of hot air flow is generated and accumulated in the inner cylinder, the pressure in the inner cylinder is suddenly increased and the top cover is rushed out, and the top cover is separated from the inner cylinder and blocked by the blocking frame;

step 3): part of hot air flow is sprayed out of the device from the spray holes of the top cover to realize the forward pressure relief process;

step 4): the other part of hot air flow enters a gap between the outer side wall of the inner barrel and the inner side wall of the outer barrel along the gap between the top cover and the top of the inner barrel, and then is sprayed out of the device through a discharge hole at the bottom of the outer barrel to realize a reverse pressure relief process.

The invention has the beneficial effects that:

1. the device has the advantages of compact and simple structure, high reliability and convenient installation; the pressure relief process can be efficiently carried out on the fire extinguishing agent when the fire extinguishing agent detonates, the phenomenon that the fire extinguishing agent cylinder moves due to the action of recoil force during pressure relief is avoided, and the safety of surrounding equipment is guaranteed.

2. The invention can realize the positive and negative two-way secondary pressure relief process, firstly, when the pressure in the inner cylinder increases suddenly and the top cover is flushed out, the pressure in the inner cylinder can be reduced suddenly at the moment that the top cover falls off, and a part of hot air flow is sprayed out of the air outside the device from the spray hole of the top cover, so that the positive first pressure relief process is realized; the other part of hot air flow enters a gap between the outer side wall of the inner cylinder and the inner side wall of the outer cylinder along the gap between the top cover and the top of the inner cylinder, and then is sprayed out of the device through a discharge hole at the bottom of the outer cylinder, so that the reverse second pressure relief process is realized.

3. Because the device is at the pressure release in-process, forward pressure release and reverse pressure release are gone on simultaneously, and the opposite direction moreover, can offset most kinetic energy each other, are unlikely to whole barrel and take place to remove and fly out the fixed mounting position, greatly increased its security.

Drawings

FIG. 1 is a schematic perspective view of an aerosol fire extinguishing apparatus with bi-directional pressure relief;

FIG. 2 is a schematic perspective view of FIG. 1 viewed obliquely upward from the bottom;

FIG. 3 is an exploded view of the outer barrel and the tightening ring of FIG. 1;

FIG. 4 is a schematic view of a connection structure between the inner cylinder and the mounting ring;

FIG. 5 is a schematic view of the inner structure of the inner cylinder;

FIG. 6 is a schematic cross-sectional view of FIG. 1 taken vertically along a central axis;

in the figure: the device comprises an inner cylinder 1, a separation net 2, a top cover 3, spray holes 4, an outer cylinder 5, an upper outer cylinder 5.1, a lower outer cylinder 5.2, a blocking frame 6, a discharge hole 7, a mounting ring 8, a through hole 9, a screw hole 10, a tightening hoop 11, a semicircular hoop 11.1, a mounting plate 11.2 and a mounting hole 11.3.

Detailed Description

The invention is described in further detail below with reference to the figures and specific embodiments.

As shown in fig. 1 to 6, the aerosol fire extinguishing device capable of bidirectionally relieving pressure comprises an inner cylinder 1, a fire extinguishing agent grain is arranged in the inner cylinder 1, the top of the inner cylinder 1 is connected with a top cover 3, a plurality of spray holes 4 are formed in the top cover 3, an outer cylinder 5 is arranged on the outer side of the inner cylinder 1, a blocking frame 6 is arranged at the top of the outer cylinder 5, and a discharge hole 7 is formed in the bottom of the outer cylinder 5. Keep off frame 6 and can effectively block the fly-out when top cap 3 drops in this embodiment, guarantee the security of device.

Preferably, the surface of the inner cylinder 1 is sleeved with a mounting ring 8, a through hole 9 is formed in the end of the mounting ring 8, and the outer cylinder 5 is tightly attached to the periphery of the mounting ring 8. Can separate urceolus 5 and inner tube 1 through collar 8 for can keep certain gap between urceolus 5 and the inner tube 1, one plays thermal-insulated effect, prevent that the heat from conducting urceolus 5 fast after the inner tube 1 high temperature, the two is convenient for the hot-blast air current after detonation to pass through from the gap, and after 8 tip of collar is equipped with through hole 9, can guarantee that the hot gas flow can not be by 8 separation of collar, make the gap space that 1 lateral wall of inner tube and 5 lateral wall of urceolus formed link up from top to bottom, do not influence the pressure release process.

More preferably, the outer cylinder 5 comprises an upper outer cylinder 5.1 and a lower outer cylinder 5.2 which are butted with each other, and the upper outer cylinder 5.1 and the lower outer cylinder 5.2 are sleeved and fixed on the periphery of the mounting ring 8. The outer cylinder 5 is arranged in a combined mode, so that the installation process of the fire extinguishing device is facilitated.

More preferably, the bottom of the upper outer cylinder 5.1, the top of the lower outer cylinder 5.2 and the periphery of the mounting ring 8 are all provided with screw holes 10 for penetrating screws. After the design, the upper outer cylinder 5.1, the lower outer cylinder 5.2 and the mounting ring 8 can be assembled, mounted and fixed together, and the continuous industrial production and processing process is facilitated.

More preferably, the surface of the position where the upper outer cylinder 5.1 and the lower outer cylinder 5.2 are butted is further sleeved with a hoop fastening ring 11, the hoop fastening ring 11 comprises two semi-circular hoops 11.1 which are hinged, the other end of the semi-circular hoop 11.1 is provided with a mounting plate 11.2, and the mounting plate 11.2 is provided with a mounting hole 11.3. The upper outer cylinder 5.1 and the lower outer cylinder 5.2 can be further tightly hooped on the surface of the mounting ring 8 through the hoop fastening rings 11, and after the two semicircular hoop rings 11.1 are folded, the two semicircular hoop rings can be fastened with objects in a surrounding narrow space through the mounting plate 11.2, so that the mounting process of the whole aerosol fire extinguishing device is facilitated.

Preferably, a separation net 2 is further arranged above the fire extinguishing agent grain, and a cooling agent is arranged on the separation net 2. In this embodiment, the fire extinguishing agent grain is the solid state cylinder structure that the aerosol propellant made, and the coolant can be ceramic ball, can further reduce the temperature that brings when fire extinguishing agent spouts.

Preferably, the fire extinguishing agent grain is in contact with an initiating end of an actuating member, and the actuating member is a heat sensitive wire structure or an electric ignition head structure. In this embodiment, can set up detection device in the extinguishing device outside, detection device's line and controller are connected, the controller output is connected with the start line of initiating part, when conflagration, when the condition such as overheated takes place, detection device (detection device is temperature sensor and/or smoke transducer) detects outside and produces behind the high temperature environment because of the conflagration, signals give the controller (the controller can select for use 51 singlechip in this embodiment, the model is 80C51 singlechip, or select STM32 microprocessor for use, the model is STM32F 103), controller control initiating part directly ignites the fire extinguishing agent grain, begin the fire extinguishing process.

In addition, the invention also discloses a pressure relief method of the aerosol fire extinguishing device, which comprises the following steps:

step 1: the fire extinguishing agent grain in the inner cylinder 1 is ignited by the starting part to generate hot aerosol gas, and the hot aerosol gas is sprayed out from the top cover 3 through the spray holes 4 to realize the fire extinguishing process;

step 2: when the fire extinguishing agent explosive column is deflagrated, a large amount of hot air flow is generated and accumulated in the inner cylinder, the pressure in the inner cylinder 1 is suddenly increased and the top cover 3 is rushed out, and the top cover 3 is separated from the inner cylinder 1 and blocked by the blocking frame 6;

and step 3: part of hot air flow is sprayed out of the device from the spray hole 4 of the top cover 3 to realize the forward pressure relief process;

and 4, step 4: the other part of hot air flow enters a gap between the outer side wall of the inner cylinder 1 and the inner side wall of the outer cylinder 5 along the gap between the top cover 3 and the top of the inner cylinder 1, and then is sprayed out of the device through a discharge hole 7 at the bottom of the outer cylinder 5, so that the reverse pressure relief process is realized.

The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and features in the embodiments and examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.