CN218636516U

CN218636516U - Thermosensitive wire assembly and fire extinguishing device

Info

Publication number: CN218636516U
Application number: CN202122003571.9U
Authority: CN
Inventors: 田雷
Original assignee: Xi'an J & R Fire Fighting Equipment Co ltd
Current assignee: Hubei Jiandun Fire Technology Co Ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2023-03-17
Anticipated expiration: 2031-08-24

Abstract

The utility model relates to a heat-sensitive wire component and a fire extinguishing device, wherein the heat-sensitive wire component comprises a heat-sensitive wire; the fire retardant shell is provided with a first inlet, a second inlet and a Tesla valve structure for communicating the first inlet with the second inlet, one end of the thermosensitive wire is matched and connected with the first inlet, and the second inlet is communicated with the outside; wherein the Tesla valve structure is in one-way communication from the second inlet to the first inlet. The utility model provides a temperature sensing line subassembly and extinguishing device sets up tesla valve structure, and when the spontaneous combustion of temperature sensing sinle silk in the fire sleeve, flame will get into tesla valve structure from first import, and tesla valve structure need not inside carry out mechanical motion, utilizes spatial structure can block the flame blowout to eliminate flame, prevented externally to the ignition of combustible gas, detonated even, the event has improved the security that the temperature sensing line used under the combustible gas environment.

Description

Thermosensitive wire assembly and fire extinguishing device

Technical Field

The utility model relates to a fire control technical field especially relates to a temperature sensing line subassembly and extinguishing device.

Background

The fire extinguishing device generally adopts two starting modes of electricity and heat, the heat starting mode is usually the fire extinguishing device which is naturally started through temperature sensing of a heat-sensitive wire, and the burning of the heat-sensitive wire is accompanied with naked flame and sparks.

When the fire extinguishing apparatus is used in a space environment filled with combustible gas, the hot start mode may cause ignition of the combustible gas and even an explosion.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a heat-sensitive wire assembly and a fire extinguishing apparatus capable of preventing the heat-sensitive wire from igniting and exploding the combustible gas, aiming at the problem that the existing heat-sensitive wire can ignite the combustible gas in a hot starting mode and even explode when the fire extinguishing apparatus is used in a space environment filled with the combustible gas.

In one aspect of the present application, there is provided a heat-sensitive wire assembly including:

a heat-sensitive wire; and

the flame retardant device comprises a flame retardant shell, a first heat-sensitive wire and a second heat-sensitive wire, wherein the flame retardant shell is provided with a first inlet, a second inlet and a Tesla valve structure for communicating the first inlet with the second inlet;

wherein the Tesla valve structure is in one-way communication from the second inlet to the first inlet.

Above-mentioned heat-sensitive line subassembly sets up tesla valve structure, and when the heat-sensitive sinle silk spontaneous combustion in fire sleeve, flame will get into tesla valve structure from first import, and tesla valve structure need not inside mechanical motion that carries on, utilizes spatial structure can block flame blowout to eliminate flame, prevented externally to the ignition of combustible gas, even detonate, the event has improved the security that the heat-sensitive line used under the combustible gas environment.

In one embodiment, the Tesla valve structure comprises a plurality of flame traps arranged at intervals along a first direction;

the flame extinguishing portion is provided with a flame inlet, flame outlets arranged at intervals along the first direction and the flame inlet, a first channel and a circuitous channel, the flame inlets are communicated with the flame outlets, and the flame outlets of two adjacent flame extinguishing portions are communicated with the flame inlets.

In one embodiment, the heat-sensitive wire comprises a fire-proof sleeve and a heat-sensitive wire core arranged in the fire-proof sleeve, and one end of the heat-sensitive wire core, facing the fire-proof shell, extends into the first channel directly connected with the first inlet from the first inlet.

In one embodiment, the first channel is linear, and the first channels of the flame traps are on the same straight line; or

The first channels of two adjacent flame-extinguishing parts are arranged at an angle.

In one embodiment, the circuitous channel is curved.

In one embodiment, the circuitous channel comprises a first linear channel, an arc-shaped channel and a second linear channel which are sequentially connected from the flame inlet to the flame outlet.

In one embodiment, the tesla valve arrangement comprises a first group of flame trap portions and a second group of flame trap portions each having at least one of the flame trap portions, the first group of flame trap portions and the second group of flame trap portions being located on either side of an axially central plane of the firestop housing.

In one embodiment, the fire barrier shell is made of steel.

This application on the other hand still provides a extinguishing device, including device body and foretell heat-sensitive line subassembly, keeping away from of heat-sensitive line the one end of back-fire relief casing with the device body links to each other.

Above-mentioned extinguishing device sets up tesla valve structure, and when the spontaneous combustion of heat-sensitive sinle silk in fire sleeve, flame will get into tesla valve structure from first import, and tesla valve structure need not inside mechanical motion that carries on, utilizes spatial structure can block flame blowout to eliminate flame, prevented externally to the ignition of combustible gas, even detonate, the event has improved the security that the heat-sensitive sinle silk used under the combustible gas environment.

Drawings

Fig. 1 is a schematic structural view of a fire extinguishing apparatus according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of a thermal wire assembly according to an embodiment of the present invention.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms different from those described herein and similar modifications may be made by those skilled in the art without departing from the spirit and scope of the invention and, therefore, the invention is not to be limited to the specific embodiments disclosed below.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Furthermore, the figures are not 1:1, and the relative sizes of the various elements in the drawings are drawn for illustration only and not necessarily to true scale.

In order to facilitate understanding of the technical solution of the present invention, prior to the detailed description, the conventional heat-sensitive wire will be described first.

The heat-sensitive line comprises heat-sensitive sinle silk and fire prevention sleeve pipe usually, and the one end of heat-sensitive line is located extinguishing device body outside for respond outside environment temperature, and the other end of heat-sensitive line links to each other with the extinguishing device body, is used for igniting gas production agent or fire extinguishing agent etc. in it, thereby starts extinguishing device body and sprays the fire extinguishing substance and put out a fire.

And the fire protection sleeve pipe both ends usually have the opening in order to show the heat-sensitive sinle silk, show that this internal heat-sensitive sinle silk of extinguishing device can ignite gas production agent or fire extinguishing agent etc. and deviate from the one end opening of extinguishing device body, can regard the gas vent to release because of heat production in the heat-sensitive sinle silk combustion process causes the gas inflation's in the fire protection sleeve pressure, consequently, can avoid the heat-sensitive line to explode and split and influence the function of the start-up extinguishing device body of heat-sensitive line.

So when extinguishing device was arranged in having combustible gas's scene, can have combustible gas to get into in the fire prevention cover pipe from the opening, perhaps the condition that the star that the heat-sensitive sinle silk burnt got into external environment from the opening, so, can make combustible gas be ignited, the huge hidden danger that explodes even threatens life and property safety on every side seriously.

Fig. 1 shows a schematic structural view of a fire extinguishing apparatus according to an embodiment of the present invention; fig. 2 shows a cross-sectional structural schematic view of the thermal wire assembly of fig. 1. For the purpose of illustration, the drawings show only the structures associated with embodiments of the invention.

Referring to the drawings, an embodiment of the present invention provides a heat-sensitive wire assembly 100 including a heat-sensitive wire 10 and a fire retardant housing 20. The heat-sensitive wire assembly 100 of the present application may be applied to the fire extinguishing apparatus 200, and may also be applied to other apparatuses to which the heat-sensitive wire assembly 100 is applied, without limitation.

Specifically, the heat-sensitive wire 10 includes a fire-resistant sleeve 11 and a heat-sensitive wire core 12. A thermally sensitive core 12 is disposed within the fire sleeve 11, the thermally sensitive core 12 being configured to be self-igniting in response to an external ambient temperature. In particular, the fire-proof sleeve 11 may be a glass fiber tube, and in other embodiments, may be coated with a fire-retardant coating.

The fire retardant housing 20 is provided with a first inlet 21, a second inlet 22 and a tesla valve structure 23 communicating the first inlet 21 and the second inlet 22, one end of the thermal wire 10 is connected with the first inlet 21 in a matching manner, the second inlet 22 is communicated with the outside, and the tesla valve structure 23 is communicated with the first inlet 21 from the second inlet 22 in a one-way manner. In this way, after the heat-sensitive wire core 20 is ignited, the gas in the fireproof sleeve 11 is heated and expanded, and can be discharged through the second inlet 22 of the fireproof housing 20 in time without bursting the heat-sensitive wire assembly 100.

Through setting up tesla valve structure 23, when heat-sensitive sinle silk 12 spontaneous combustion in fire sleeve 11, flame will get into tesla valve structure 23 from first import 21, and tesla valve structure 23 does not need inside to carry out mechanical motion, utilizes spatial structure can block flame blowout to eliminate flame, prevented externally to the ignition of combustible gas, even explode, the security that the heat-sensitive sinle silk 10 used under the combustible gas environment has been improved to the event.

It should be noted that the principle of the tesla valve structure 23 is well known to those skilled in the art and will not be described in detail herein.

Specifically, in one embodiment of the present application, the tesla valve structure 23 includes a plurality of flame trap portions 231, the plurality of flame trap portions 231 are spaced apart along the first direction, the flame trap portions 231 have flame inlets 2311, flame outlets 2312 spaced apart from the flame inlets 2311 along the first direction, and first passages 2313 and detour passages 2314 both communicating the flame inlets 2311 with the flame outlets 2312, and the flame outlets 2312 of two adjacent flame trap portions 231 communicate with the flame inlets 2311. In particular, the first direction may be lengthwise of the firestop housing 20, and in other embodiments, may be other directions, without limitation.

Thus, the flame is divided into a first flame discharged from the flame outlet 2312 after passing through the bypass passage 2314 from the flame inlet 2311, that is, a second flame discharged from the flame outlet 2312 after passing through the first passage 2313 from the flame inlet 2311, and in the process, the first flame can change the direction to flow back to collide with the second flame due to the existence of the bypass passage, so that the energy consumption of the flame can prevent the flame from continuing to go back, and the flame extinguishing effect can be achieved after the flame passes through the plurality of flame extinguishing portions 231.

In some embodiments, the tesla valve arrangement 23 includes first and second groups of flame trap portions, each having at least one flame trap 231, located on either side of an axially central plane of the firestop housing 20. Therefore, the structure is compact, and the flame-extinguishing effect is stable.

The shape of the circuitous channel 2314 can be curved, and the curved shape enables the flame to flow more smoothly. In other embodiments, the circuitous path 2314 comprises a first linear path, an arc-shaped path, and a second linear path sequentially connected from the flame inlet 2311 to the flame outlet 2312. The setting of arc passageway can make flame turn smoothly, and the setting of first straight line passageway and second straight line passageway is shorter than the passageway of other shapes for flame can pass through more fast, has improved flame efficiency that disappears.

In some embodiments, the first channels 2313 are linear, and the first channels 2313 of the flame traps 231 are collinear. In this manner, the molding of the plurality of first channels 2313 is simpler and the tesla valve structure 23 is simplified.

In other embodiments, the first channels 2313 of two adjacent flame traps 231 may be disposed at an angle. Thus, the difficulty of flame transmission between the flame-extinguishing portions 231 can be increased, and the stability of flame-extinguishing can be improved.

In some embodiments, to facilitate the smooth entry of a fireworks into the tesla valve structure 23, the end of the heat sensitive core 12 facing the firestop housing 20 extends from the first inlet 21 into the first passageway 2313 that is directly connected to the first inlet 21. Of course, in other embodiments, the heat-sensitive wire core 12 may not extend into the first inlet 21, but the heat-sensitive wire core 12 needs to be communicated with the first inlet 21, and the specific manner is not limited herein.

In some embodiments, firestop housing 20 is made of steel. Since steel has a high melting point and high mechanical strength, the steel material has a stable structure, and the tesla valve structure 23 can be ensured to have a stable shape when subjected to an external force.

Referring to fig. 1 again, based on the same inventive concept, the present application further provides a fire extinguishing apparatus 200, which includes an apparatus body 210 and the above-mentioned heat-sensitive wire assembly 100, wherein an end of the heat-sensitive wire 200 away from the fire retardant housing 20 is connected to the apparatus body 210.

Referring to fig. 2 again, based on the same inventive concept, the present application further provides a fire retardant device 300, which includes a fire retardant housing 20, wherein the fire retardant housing 20 is provided with a first inlet 21, a second inlet 22 and a tesla valve structure 23 communicating the first inlet 21 and the second inlet 22, the first inlet 21 is adapted to be connected to one end of the thermal sensitive wire 10, the second inlet 22 is communicated with the outside, and the tesla valve structure 23 is communicated with the first inlet 21 from the second inlet 22 in a one-way manner.

The embodiment of the utility model provides a temperature sensing line subassembly 100 and extinguishing device 200 compares in prior art, has following beneficial effect:

the Tesla valve structure 23 is arranged, when the thermosensitive wire core 12 is spontaneously combusted in the fireproof sleeve 11, flame enters the Tesla valve structure 23 from the first inlet 21, the Tesla valve structure 23 does not need to perform internal mechanical movement, the flame can be blocked from being sprayed out by utilizing a space structure, the flame is eliminated, ignition and even detonation of combustible gas outside are prevented, and therefore the safety of the thermosensitive wire 10 in use under the environment of the combustible gas is improved.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, without departing from the inventive concept, several variants and modifications can be made, which all fall within the scope of the invention. Therefore, the scope of fire protection of the present invention shall be subject to the appended claims.

Claims

1. A thermal wire assembly (100) comprising:

a heat-sensitive wire (10); and

the flame retardant device comprises a flame retardant shell (20), wherein the flame retardant shell (20) is provided with a first inlet (21), a second inlet (22) and a Tesla valve structure (23) for communicating the first inlet (21) with the second inlet (22), one end of a thermosensitive wire (10) is matched and connected with the first inlet (21), and the second inlet (22) is communicated with the outside;

wherein the Tesla valve structure (23) is unidirectionally conducted from the second inlet (22) to the first inlet (21).

2. The temperature-sensitive wire assembly (100) of claim 1, wherein the tesla valve structure (23) comprises a plurality of flame traps (231), the plurality of flame traps (231) being spaced apart in a first direction;

the flame arrester (231) has a flame inlet (2311), a flame outlet (2312) spaced from the flame inlet (2311) along the first direction, and a first channel (2313) and a bypass channel (2314) both communicating the flame inlet (2311) and the flame outlet (2312), wherein the flame outlets (2312) of two adjacent flame arrester (231) are communicated with the flame inlet (2311).

3. A temperature-sensitive wire assembly (100) according to claim 2, wherein the temperature-sensitive wire (10) comprises a flame sleeve (11) and a temperature-sensitive wire core (12) arranged therein, the temperature-sensitive wire core (12) protruding from the first inlet (21) into the first channel (2313) directly connected to the first inlet (21) towards the end of the flame retardant housing (20).

4. The heat-sensitive wire assembly (100) according to claim 2, wherein the first channel (2313) is linear, and the first channels (2313) of the flame traps (231) are collinear; or

The first channels (2313) of two adjacent flame traps (231) are arranged at an angle.

5. The thermal wire assembly (100) of claim 2 wherein said circuitous channel (2314) is curvilinear.

6. The heat-sensitive wire assembly (100) according to claim 2, wherein the detour channel (2314) comprises a first straight channel, an arc-shaped channel and a second straight channel which are connected in sequence from the flame inlet (2311) to the flame outlet (2312).

7. The temperature-sensitive wire assembly (100) according to claim 2, wherein the tesla valve structure (23) comprises a first and a second group of flame traps each having at least one of the flame traps (231), the first and second groups of flame traps being located on either side of an axial central plane of the flame trap housing (20).

8. The temperature-sensitive wire assembly (100) of claim 1, wherein the firestop housing (20) is steel.

9. A fire extinguishing apparatus (200) comprising an apparatus body (210) and a heat-sensitive wire assembly (100) as claimed in any one of claims 1 to 8, wherein the end of the heat-sensitive wire (10) remote from the fire retardant housing (20) is connected to the apparatus body (210).