CN117809421B - Spontaneous combustion alarm device of high-low voltage power distribution cabinet - Google Patents
Spontaneous combustion alarm device of high-low voltage power distribution cabinet Download PDFInfo
- Publication number
- CN117809421B CN117809421B CN202410223497.7A CN202410223497A CN117809421B CN 117809421 B CN117809421 B CN 117809421B CN 202410223497 A CN202410223497 A CN 202410223497A CN 117809421 B CN117809421 B CN 117809421B
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- power distribution
- smoke
- distribution cabinet
- guide tube
- low voltage
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 42
- 230000002269 spontaneous effect Effects 0.000 title claims abstract description 22
- 239000000779 smoke Substances 0.000 claims abstract description 155
- 238000004880 explosion Methods 0.000 claims abstract description 29
- 239000007789 gas Substances 0.000 claims description 33
- 238000007599 discharging Methods 0.000 claims description 13
- 238000013016 damping Methods 0.000 claims description 11
- 238000009423 ventilation Methods 0.000 claims description 8
- 229920000742 Cotton Polymers 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 2
- 239000000428 dust Substances 0.000 claims description 2
- 239000003063 flame retardant Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000003517 fume Substances 0.000 claims 1
- 230000001960 triggered effect Effects 0.000 abstract description 7
- 230000003111 delayed effect Effects 0.000 abstract description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 241000287107 Passer Species 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Fire Alarms (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention relates to the field of power distribution cabinet alarm devices, in particular to a spontaneous combustion alarm device for a high-low voltage power distribution cabinet. The invention provides a spontaneous combustion alarm device of a high-low voltage power distribution cabinet, which comprises a smoke guide tube, wherein the smoke guide tube is externally connected to the top of the power distribution cabinet, a folding bag is arranged between the smoke guide tube and a cover plate, explosion impact generated by combustion phenomenon of the power distribution cabinet drives the smoke guide tube to drive the folding bag connected with the cover plate to rise upwards at first time, so that the explosion impact in the power distribution cabinet and carried smoke and sparks can be timely collected into the folding bag upwards, fire-fighting gas is sprayed out to actively extinguish the spontaneous combustion phenomenon in the power distribution cabinet, and a smoke alarm in the smoke exhaust tube is triggered to perform remote alarm work. The technical problems that when the high-low voltage power distribution cabinet has a combustion phenomenon and has explosion impact, not only surrounding passers-by and surrounding equipment can be injured, but also the alarm is damaged and can not normally alarm, and the combustion phenomenon of the high-low voltage power distribution cabinet is delayed to extinguish the work are solved.
Description
Technical Field
The invention relates to the field of power distribution cabinet alarm devices, in particular to a spontaneous combustion alarm device for a high-low voltage power distribution cabinet.
Background
The high-low voltage power distribution cabinet is an important control center in high-low voltage conversion equipment, therefore, great spontaneous combustion potential hazards exist in the high-low voltage power distribution cabinet, when the high-low voltage power distribution cabinet has a combustion phenomenon, the temperature in the high-low voltage power distribution cabinet is rapidly reduced, normal use of other spare parts in the high-low voltage power distribution cabinet is endangered, when the combustion phenomenon in the high-low voltage power distribution cabinet is severe, strong explosion impact is easily generated in the high-low voltage power distribution cabinet, the generated explosion impact can rush out the cabinet door of the high-low voltage power distribution cabinet, and meanwhile, the explosion impact is gushed out to the environment outside the cabinet body, a large amount of combustion sparks carried in the explosion impact at the moment endanger safety of surrounding passers-by and surrounding equipment, so that larger disasters are generated, the explosion impact generated at the same time also easily damages an alarm installed in the high-low voltage power distribution cabinet, alarm cannot normally alarm work after the alarm is damaged, and the gold extinguishing time of the high-low voltage power distribution cabinet with the combustion phenomenon is delayed.
Disclosure of Invention
In order to overcome the defects that when the high-low voltage power distribution cabinet has a combustion phenomenon and has explosion impact, surrounding passers-by and surrounding equipment can be injured, an alarm is easily damaged and cannot normally alarm, and the combustion phenomenon of the high-low voltage power distribution cabinet is delayed to extinguish.
The invention relates to a spontaneous combustion alarm device of a high-low voltage power distribution cabinet, which comprises a mounting plate, a smoke guide tube, a bottom plug, a supporting plate, an inserting rod, a cover plate, a multi-stage telescopic rod, a smoke exhaust tube, a smoke alarm and a folding bag; a smoke guide tube is fixedly connected on the mounting plate; a cover plate is arranged on the smoke guide tube; the mounting plate is fixedly connected with a multi-stage telescopic rod; the telescopic part of the multi-stage telescopic rod is fixedly connected with a cover plate; the cover plate is fixedly connected with a smoke discharging tube, and the bottom of the smoke discharging tube is of a closed structure; the smoke exhaust tube is inserted into the smoke guide tube; the smoke exhaust cylinder is provided with a ventilation groove structure; a mounting ring is connected in the smoke exhaust barrel; a smoke alarm is arranged in the mounting ring; a folding bag is fixedly connected between the smoke guide tube and the cover plate; an annular cavity structure is arranged in the smoke guide tube; a discharge hole structure communicated with the annular cavity is arranged at the bottom of the smoke guide tube; a bottom plug is inserted into each discharge hole of the smoke guide tube; the cover plate is connected with a plug rod in a damping manner; the lower ends of all the inserted bars are fixedly connected with a supporting plate; the supporting plate is tightly attached to each bottom plug; the annular cavity of the smoke guide tube is filled with pressurized fire-fighting gas.
Preferably, the smoke guide tube has a funnel-shaped structure with a middle portion expanding upward and downward respectively.
Preferably, the bottom of the smoke exhaust tube is provided with a concave groove structure which is concave upwards.
Preferably, colored gas with warning function is mixed in the pressurized fire-fighting gas in the annular cavity of the smoke guide tube.
Preferably, the ventilation groove of the smoke exhaust tube is fixedly connected with a gas filtering cotton for filtering harmful smoke dust.
Preferably, an electrically controlled exhaust fan is mounted in the mounting ring.
Preferably, the mounting ring is in sliding connection with the smoke exhaust tube; a damping ring is fixedly connected between the upper side and the lower side of the mounting ring and the smoke discharging cylinder respectively.
Preferably, the bottom side edge of the smoke exhaust tube is provided with a chute structure.
Preferably, a spring is fixedly connected between the cover plate and the fixed shell of the multistage telescopic rod.
Preferably, a fuse is fixedly connected to the lower end of the smoke exhaust tube.
The invention describes a spontaneous combustion alarm device of a high-low voltage power distribution cabinet, which is externally connected to the top of the power distribution cabinet, a folding bag is arranged between a smoke guide tube and a cover plate, the smoke exhaust tube in the cover plate is initially inserted into the smoke guide tube, when the power distribution cabinet has a combustion phenomenon, the smoke guide tube is pushed upwards by explosion impact generated by the combustion phenomenon of the power distribution cabinet to drive the folding bag connected with the cover plate to rise upwards at the first time, so that the explosion impact in the power distribution cabinet and carried smoke and sparks can be timely collected upwards into the folding bag, the situation that cabinet doors in the power distribution cabinet are exploded to hurt surrounding passers and surrounding equipment by explosion impact is avoided, the smoke guide tube is filled with pressurized fire-fighting gas, the pressurized fire-fighting gas in the smoke guide tube is actively triggered to be downwards sprayed into the power distribution cabinet when the cover plate rises upwards, the fire-fighting phenomenon in the power distribution cabinet is timely extinguished, meanwhile, the smoke alarm in the smoke exhaust tube is triggered to perform remote alarm operation, and the fire-fighting gas in the fire-fighting bag is timely entered into the folding bag along with the smoke, sparks in the folding bag are timely extinguished, the sparks are prevented from being sprayed into the outside air to hurt people, and the surrounding people are warned by the surrounding people, and the surrounding people by the fire-fighting gas.
The spontaneous combustion alarm device for the high-low voltage power distribution cabinet solves the technical problems that when the high-low voltage power distribution cabinet has a combustion phenomenon and has explosion impact, surrounding passers-by and surrounding equipment can be injured, an alarm is damaged easily, normal alarm cannot be carried out, and the combustion phenomenon of the high-low voltage power distribution cabinet is delayed to extinguish.
Drawings
Fig. 1 is a perspective view of a structure illustrating the present invention according to an embodiment;
FIG. 2 is a cross-sectional view of a chimney and cover plate depicting the present invention according to an embodiment;
Fig. 3 is a perspective view of a smoke exhaust drum according to an embodiment of the present invention;
fig. 4 is a perspective view illustrating a chimney according to an embodiment of the present invention;
Fig. 5 is a cross-sectional view of a smoke evacuation cartridge according to an embodiment of the present invention.
The reference numerals of the invention illustrate: the smoke alarm device comprises a 1-mounting plate, a 2-smoke guide tube, a 20-annular cavity, a 201-discharge hole, a 21-bottom plug, a 22-supporting plate, a 23-inserting rod, a 3-cover plate, a 31-multi-stage telescopic rod, a 32-spring, a 4-smoke guide tube, a 401-ventilation groove, a 402-groove, a 403-chute, a 41-mounting ring, a 42-smoke alarm, a 43-electric control exhaust fan, a 44-damping ring, a 45-air filter cotton, a 46-fuse wire and a 5-folding bag.
Detailed Description
The invention is further described below with reference to the drawings and the detailed description.
Example 1
1-5, The spontaneous combustion alarm device of the high-low voltage power distribution cabinet comprises a mounting plate 1, a smoke guide tube 2, a bottom plug 21, a supporting plate 22, an inserting rod 23, a cover plate 3, a multi-stage telescopic rod 31, a smoke discharge tube 4, a smoke alarm 42 and a folding bag 5; the mounting plate 1 is connected with a smoke guide tube 2 through bolts; a cover plate 3 is arranged on the smoke guide tube 2; four multi-stage telescopic rods 31 are connected to the mounting plate 1 through bolts, and the multi-stage telescopic rods 31 are all damping telescopic rods, so that the multi-stage telescopic rods 31 are not easy to fall back downwards under the damping effect after rising upwards; the telescopic parts of the four multi-stage telescopic rods 31 are fixedly connected with the cover plate 3; the middle part of the cover plate 3 is fixedly connected with a smoke discharging cylinder 4, and the bottom of the smoke discharging cylinder 4 is of a closed structure; the lower end of the smoke exhaust tube 4 is inserted into the middle part of the smoke guide tube 2; the lower side of the smoke exhaust tube 4 is provided with a plurality of ventilation grooves 401 which penetrate inside and outside; a mounting ring 41 is connected in the smoke exhaust tube 4; a smoke alarm 42 is arranged in the mounting ring 41, and a remote wireless alarm module is arranged in the smoke alarm 42; a folding bag 5 for containing smoke is fixedly connected between the smoke guide tube 2 and the cover plate 3, and the folding bag 5 is made of flame-retardant materials; an annular cavity 20 structure is arranged in the smoke guide tube 2; the bottom of the smoke guide tube 2 is provided with a plurality of discharging holes 201 communicated with the annular cavity 20; each discharging hole 201 of the smoke guide tube 2 is inserted with a bottom plug 21; the bottom of the cover plate 3 is in damping type plug-in connection with a plurality of plug-in rods 23; the lower ends of all the inserted bars 23 are fixedly connected with a supporting plate 22; the supporting plate 22 is closely attached to the bottom of each bottom plug 21; the annular chamber 20 of the chimney 2 is filled with pressurized fire-fighting gas.
As shown in fig. 2, the smoke guide tube 2 is in a funnel-shaped structure with the middle part expanding towards the upper side and the lower side respectively, and most smoke from the interior of the external power distribution cabinet is remained in the upper space of the smoke guide tube 2 after entering the upper space of the smoke guide tube 2 upwards from the lower space of the smoke guide tube 2, so that a large amount of smoke rising upwards into the upper space of the smoke guide tube 2 is prevented from falling back down into the external power distribution cabinet.
As shown in fig. 3, the bottom of the smoke discharging tube 4 is provided with an upward concave groove 402 structure, so that the contact area between the explosion impact force from the external power distribution cabinet and the bottom of the smoke discharging tube 4 is effectively increased, the explosion impact force can push the smoke discharging tube 4 upwards more smoothly, and the smoke alarm 42 can be triggered smoothly.
The spontaneous combustion alarm device of the high-low voltage power distribution cabinet is externally connected to the top of the power distribution cabinet, and the lower space of the smoke guide tube 2 is communicated with the inside of the power distribution cabinet.
When the combustion phenomenon occurs in the externally connected power distribution cabinet and the explosion impact is accompanied, the explosion impact from the power distribution cabinet pushes the smoke exhaust tube 4 to move upwards to the upper space of the smoke guide tube 2, and continuously pushes the smoke exhaust tube 4 to drive the folding bag 5 connected with the cover plate 3 to pull upwards, the cover plate 3 drives the multi-stage telescopic rod 31 to move upwards, and the smoke and sparks generated in the power distribution cabinet enter the space between the folding bag 5 and the smoke exhaust tube 4 upwards through the upward pulled folding bag 5, so that the explosion impact from the power distribution cabinet with the combustion phenomenon and the generated smoke and sparks are collected into the folding bag 5 in time, and the explosion impact is avoided to blow the cabinet door of the power distribution cabinet open to hurt surrounding passers and surrounding equipment.
After the flue gas from the switch board enters the folding bag 5, the flue gas upwards flows through the smoke alarm 42 through the ventilation groove 401 of the smoke exhaust pipe 4, the smoke alarm 42 is triggered by the flowing flue gas and then remotely alarms through the built-in remote wireless alarm module at the first time, and the smoke alarm 42 is arranged in the smoke exhaust pipe 4 instead of being positioned in the external switch board, so that the explosion impact from the switch board can not directly contact with the smoke alarm 42, and the phenomenon that the smoke alarm 42 is damaged due to the influence of the explosion impact is reduced.
When the cover plate 3 moves upwards, the cover plate 3 drives the inserted link 23 to move upwards, but the inserted link 23 and the connected supporting plate 22 are blocked by the bottom plug 21 and kept static, when the upward thrust of explosion impact on the cover plate 3 is larger than the damping force between the cover plate 3 and the inserted link 23, the inserted link 23 kept static is separated from the cover plate 3 which moves upwards, after the inserted link 23 loses the constraint from the cover plate 3, the pressurized fire-fighting gas in the annular cavity 20 of the smoke guide tube 2 pushes the bottom plug 21 downwards to leave the discharge hole 201, meanwhile, the pressurized fire-fighting gas in the annular cavity 20 of the smoke guide tube 2 is sprayed downwards into an external power distribution cabinet through the discharge hole 201, the fire-fighting gas sprayed out timely extinguishes the combustion phenomenon in the external power distribution cabinet, and then the fire-fighting gas in the external power distribution cabinet enters the folding bag 5 upwards along with the smoke, and the fire-fighting gas kills sparks in the folding bag 5 again, so that sparks in the folding bag 5 are prevented from being discharged into the outside air in a large quantity through the smoke guide tube 4 to hurt people.
In addition, colored gas is mixed in the pressurized fire-fighting gas in the annular cavity 20 of the smoke guide tube 2, after the fire-fighting gas is discharged into the outside air through the smoke discharge tube 4, the colored gas in the fire-fighting gas can play a role in warning passers-by, the passers-by is warned to be abnormal, and the passers-by can choose to alarm and actively keep away from when seeing that the colored gas is discharged from the externally connected power distribution cabinet.
Example 2
On the basis of the embodiment 1, as shown in fig. 1 to 5, one air filter 45 is fixedly connected in each ventilation groove 401 of the smoke exhaust barrel 4 of the embodiment; an electric control exhaust fan 43 is connected in the mounting ring 41 through bolts; after the smoke exhaust tube 4 is upwards flushed, after the smoke alarm 42 is triggered by the flowing smoke, the smoke alarm 42 sends a starting signal to the electric control exhaust fan 43 through a circuit system, the electric control exhaust fan 43 starts to perform upward air exhaust work, the smoke entering the folding bag 5 and large-particle smoke in fire-fighting gas are blocked between the smoke exhaust tube 4 and the folding bag 5 by the air filter cotton 45, only colored gas and a small amount of smoke in fire-fighting gas can pass through the air filter cotton 45 and be upwards exhausted into the outside air by the electric control exhaust fan 43, colored gas is exhausted into the outside air to warn passersby, and serious environmental pollution caused by that a large amount of large-particle smoke is exhausted into the outside air is effectively avoided.
The mounting ring 41 is connected with the smoke exhaust tube 4 in a sliding way; a shock absorption ring 44 is fixedly connected between the upper side and the lower side of the mounting ring 41 and the smoke exhaust barrel 4 respectively; when the explosion impact force from the external power distribution cabinet upwards impacts the smoke exhaust tube 4, the smoke exhaust tube 4 timely provides a damping effect for the smoke alarm 42 and the electric control exhaust fan 43 on the mounting ring 41 through the damping ring 44, so that the smoke alarm 42 and the electric control exhaust fan 43 are prevented from being directly affected by the explosion impact to be shocked out, and effective protection is provided for the smoke alarm 42 and the electric control exhaust fan 43; the bottom side edge of the smoke exhaust tube 4 is provided with a plurality of chute 403 structures, and in the process that the smoke exhaust tube 4 is pushed to rise upwards by the explosion impact force in the external power distribution cabinet, the explosion impact in the external power distribution cabinet can be discharged upwards into the upper space of the smoke exhaust tube 2 through the chute 403 at the first time, so that the time that the smoke exhaust tube 4 receives the action of the explosion impact force is effectively reduced, and the smoke alarm 42 and the electric control exhaust fan 43 are further protected.
Example 3
On the basis of the embodiment 1, as shown in fig. 1 to 5, a spring 32 is fixedly connected between the cover plate 3 of the embodiment and the fixed shell of each multi-stage telescopic rod 31; the lower end of the smoke exhaust tube 4 is fixedly connected with a fuse 46, the lower end of the fuse 46 is fixedly connected in an external power distribution cabinet, the smoke exhaust tube 4 is initially kept in a state of being positioned in the middle of the plug-in smoke exhaust tube 2 through the fuse 46 being fixed on the power distribution cabinet, and the spring 32 is initially in a compressed state at the moment; when a combustion phenomenon occurs in an external power distribution cabinet but a large-range explosion impact does not occur, smoke generated in the combustion in the power distribution cabinet cannot directly jack up the smoke discharging cylinder 4 upwards, but the combustion phenomenon in the power distribution cabinet generates high-temperature heat to fuse the fuse wire 46, at the moment, the cover plate 3 is pushed by the spring 32 which is in a compressed state initially to drive the smoke discharging cylinder 4 to jack up upwards, the cover plate 3 which is lifted upwards breaks loose from the inserting rod 23, so that the pressurized fire-fighting gas in the annular cavity 20 of the smoke guiding cylinder 2 can push away the bottom plug 21 to be sprayed into the power distribution cabinet, the combustion phenomenon in the power distribution cabinet is extinguished by the pressurized fire-fighting gas in the first time, and meanwhile, the smoke alarm 42 is triggered by the ascending smoke to remotely alarm, and the colored gas in the power distribution cabinet is discharged into the outside air in time by the electric control exhaust fan 43 to warn passersby.
The foregoing is merely exemplary of the present invention and is not intended to limit the present invention. All equivalents and alternatives falling within the spirit of the invention are intended to be included within the scope of the invention. What is not elaborated on the invention belongs to the prior art which is known to the person skilled in the art.
Claims (10)
1. A spontaneous combustion alarm device of a high-low voltage power distribution cabinet comprises: a mounting plate (1);
it is characterized by also comprising a smoke guide tube (2);
A smoke guide tube (2) is fixedly connected on the mounting plate (1); a cover plate (3) is arranged on the smoke guide tube (2); a multistage telescopic rod (31) is fixedly connected on the mounting plate (1); the telescopic part of the multi-stage telescopic rod (31) is fixedly connected with the cover plate (3); the cover plate (3) is fixedly connected with a smoke exhaust tube (4), and the bottom of the smoke exhaust tube (4) is of a closed structure; the smoke exhaust tube (4) is inserted into the smoke guide tube (2); the smoke exhaust tube (4) is provided with a ventilation groove (401) structure; a mounting ring (41) is connected in the smoke exhaust tube (4); a smoke alarm (42) is arranged in the mounting ring (41); a folding bag (5) is fixedly connected between the smoke guide tube (2) and the cover plate (3), and the folding bag (5) is made of flame-retardant materials; an annular cavity (20) structure is arranged in the smoke guide tube (2); a discharging hole (201) structure communicated with the annular cavity (20) is arranged at the bottom of the smoke guide tube (2); a bottom plug (21) is respectively inserted into the discharge hole (201) of the smoke guide tube (2); the cover plate (3) is inserted with a plug rod (23); the lower ends of all the inserted bars (23) are fixedly connected with a supporting plate (22) together; the supporting plate (22) is closely attached to each bottom plug (21); the annular cavity (20) of the smoke guide tube (2) is filled with pressurized fire-fighting gas; the lower space of the smoke guide tube (2) is communicated with the inside of the power distribution cabinet;
When the upward thrust of explosion impact on the cover plate (3) is larger than the damping force between the cover plate (3) and the inserted link (23), the inserted link (23) which is kept static is separated from the cover plate (3) which moves upwards, after the inserted link (23) loses the constraint from the cover plate (3), the pressurized fire-fighting gas in the annular cavity (20) of the smoke guide tube (2) pushes the bottom plug (21) downwards to leave the discharge hole (201), and meanwhile the pressurized fire-fighting gas in the annular cavity (20) of the smoke guide tube (2) is sprayed downwards into the externally connected power distribution cabinet through the discharge hole (201).
2. The spontaneous combustion alarm device of the high-low voltage power distribution cabinet according to claim 1, wherein the smoke guide tube (2) is of a funnel-shaped structure with the middle part expanding towards the upper side and the lower side respectively.
3. The spontaneous combustion alarm device of the high-low voltage power distribution cabinet according to claim 1, wherein the bottom of the smoke exhaust tube (4) is provided with a concave groove (402) structure which is concave upwards.
4. The spontaneous combustion alarm device of the high-low voltage power distribution cabinet according to claim 1 is characterized in that colored gas with a warning effect is mixed in the pressurized fire-fighting gas in the annular cavity (20) of the smoke guide tube (2).
5. The spontaneous combustion alarm device of the high-low voltage power distribution cabinet according to claim 4, wherein a gas filtering cotton (45) for filtering harmful smoke dust is fixedly connected in a ventilation groove (401) of the smoke exhaust tube (4).
6. The spontaneous combustion alarm device of the high-low voltage power distribution cabinet according to claim 5, wherein the electric control exhaust fan (43) is arranged in the mounting ring (41).
7. A spontaneous combustion alarm device for a high-low voltage power distribution cabinet according to any one of claims 1 to 6, characterized in that the mounting ring (41) is slidingly connected with the fume exhaust tube (4); a damping ring (44) is fixedly connected between the upper side and the lower side of the mounting ring (41) and the smoke exhaust tube (4) respectively.
8. The spontaneous combustion alarm device of the high-low voltage power distribution cabinet according to claim 1, wherein a chute (403) structure is arranged at the side edge of the bottom of the smoke exhaust tube (4).
9. The spontaneous combustion alarm device of the high-low voltage power distribution cabinet according to claim 1, wherein a spring (32) is fixedly connected between the cover plate (3) and a fixed shell of the multistage telescopic rod (31).
10. The spontaneous combustion alarm device of the high-low voltage power distribution cabinet according to claim 9, wherein the lower end of the smoke exhaust tube (4) is fixedly connected with a fuse (46).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410223497.7A CN117809421B (en) | 2024-02-29 | 2024-02-29 | Spontaneous combustion alarm device of high-low voltage power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410223497.7A CN117809421B (en) | 2024-02-29 | 2024-02-29 | Spontaneous combustion alarm device of high-low voltage power distribution cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN117809421A CN117809421A (en) | 2024-04-02 |
| CN117809421B true CN117809421B (en) | 2024-05-10 |
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| CN202410223497.7A Active CN117809421B (en) | 2024-02-29 | 2024-02-29 | Spontaneous combustion alarm device of high-low voltage power distribution cabinet |
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| KR101446890B1 (en) * | 2014-04-16 | 2014-10-01 | 주식회사 라이트 제림 | Antivibration pad and earthquake resistant switchgear provided with the same |
| CN209544994U (en) * | 2019-04-12 | 2019-10-25 | 山东洋利电气有限公司 | A kind of low voltage drawing-out switching carbinet with cooling mechanism |
| CN211428608U (en) * | 2019-11-28 | 2020-09-04 | 上海佩凡电子科技有限公司 | Explosion-proof device of low-voltage weak-current switch cabinet |
| CN111760221A (en) * | 2020-06-01 | 2020-10-13 | 吴波 | Fire-retardant device of switch board with isolated air function |
| CN213584749U (en) * | 2020-11-17 | 2021-06-29 | 重庆朝阳气体有限公司 | Special explosion-proof switch board of gas distribution system pipeline |
| CN215419133U (en) * | 2021-01-20 | 2022-01-04 | 唐山昌硕电器有限公司 | Safe type block terminal |
| CN217812941U (en) * | 2022-04-14 | 2022-11-15 | 阳光电源股份有限公司 | Hinge mechanism and case |
| CN219559643U (en) * | 2023-04-12 | 2023-08-22 | 复盛能源科技(绍兴)有限公司 | Dangerous chemical safety cabinet |
| CN117328388A (en) * | 2023-08-24 | 2024-01-02 | 深圳市综合交通与市政工程设计研究总院有限公司 | Warning device for municipal road turning dangerous area |
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| CN117809421A (en) | 2024-04-02 |
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