CN112448289A - Fireproof low-voltage power distribution cabinet - Google Patents
Fireproof low-voltage power distribution cabinet Download PDFInfo
- Publication number
- CN112448289A CN112448289A CN202011407709.5A CN202011407709A CN112448289A CN 112448289 A CN112448289 A CN 112448289A CN 202011407709 A CN202011407709 A CN 202011407709A CN 112448289 A CN112448289 A CN 112448289A
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- Prior art keywords
- power distribution
- distribution cabinet
- fire
- main
- cabinet
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- 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
- H02B1/32—Mounting of devices therein
-
- 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
-
- 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
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C99/00—Subject matter not provided for in other groups of this subclass
- A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
- A62C99/0018—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using gases or vapours that do not support combustion, e.g. steam, carbon dioxide
- A62C99/0027—Carbon dioxide extinguishers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a fireproof low-voltage power distribution cabinet, which comprises a main power distribution cabinet, a primary power distribution cabinet and a fire-fighting cabinet, wherein the primary power distribution cabinet and the fire-fighting cabinet are respectively arranged on two sides of the lower part of the main power distribution cabinet; a distribution panel board is arranged on a back plate in the main distribution cabinet, and distribution components are arranged on the distribution panel board; a first temperature sensor, a smoke sensor and a nozzle are arranged on the top wall in the main power distribution cabinet; a main alternating current contactor is arranged in the first-stage distribution box, and power lines enter the main distribution box for distribution after passing through the main alternating current contactor; a fire extinguisher and a controller are arranged in the fire-fighting cabinet, an electric control valve is arranged on an outlet of the fire extinguisher, and an outlet of the electric control valve is communicated to the nozzle through a pipeline; the input end of the controller is electrically connected with the first temperature sensor and the smoke sensor, and the output end of the controller is electrically connected with the electric control valve and the control coil of the main alternating current contactor. The fireproof low-voltage power distribution cabinet can automatically extinguish the fire in the power distribution cabinet and avoid greater fire loss.
Description
Technical Field
The invention relates to the technical field of agricultural irrigation, in particular to a fireproof low-voltage power distribution cabinet.
Background
The AC low-voltage distribution cabinet is a final-stage equipment for distribution system, which distributes the electric energy of a certain circuit of the upper-stage distribution equipment to the nearby load and is widely used in various environments. The rated current of the low-voltage power distribution cabinet is 50Hz, and the power distribution system with the rated voltage of 380v is used for power, illumination and power conversion and control of power distribution.
In the prior art, distribution components and parts such as air circuit breakers, measuring coils and a large amount of electric wires and cables are arranged in the power distribution cabinet, the internal arrangement of most power distribution cabinets is dense, the heat dissipation is poor, if a short circuit or overload condition occurs, the local temperature is caused to be too high, and a fire disaster is easily caused. The switch board does not generally have personnel on duty, is generally difficult for finding extinguishing device around the switch board moreover, has the problem that can not in time put out the fire source.
Therefore, how to provide a fireproof low-voltage power distribution cabinet to solve the above-mentioned drawbacks is a technical problem that needs to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention aims to provide a fireproof low-voltage power distribution cabinet, which can automatically extinguish fire in the power distribution cabinet and avoid greater fire loss.
In view of the above, the invention provides a fireproof low-voltage power distribution cabinet, which comprises a main power distribution cabinet, a primary power distribution cabinet and a fire-fighting cabinet, wherein the primary power distribution cabinet and the fire-fighting cabinet are respectively fixed on two sides of the main power distribution cabinet, and bottom end surfaces of the primary power distribution cabinet and the fire-fighting cabinet are flush with the bottom end surface of the main power distribution cabinet; a distribution panel board is arranged on a back plate in the main distribution cabinet, and distribution components are arranged on the distribution panel board; a first temperature sensor, a smoke sensor and a nozzle are mounted on the top wall inside the main power distribution cabinet; a main alternating current contactor is arranged in the first-stage distribution box, and a power line enters the main distribution box for distribution after passing through the main alternating current contactor; a fire extinguisher and a controller are arranged in the fire-fighting cabinet, an outlet of the fire extinguisher is provided with an electric control valve, and an outlet of the electric control valve is communicated to the nozzle through a pipeline; the input end of the controller is electrically connected with the first temperature sensor and the smoke sensor, and the output end of the controller is electrically connected with the electric control valve and the control coil of the main alternating current contactor.
The invention has the beneficial effects that: set up one-level block terminal and fire control cabinet through the outside both sides at main switch board, the main alternating current contactor in the one-level block terminal controls the input power supply of main switch board, set up the fire extinguisher in the fire control cabinet, the fire extinguisher communicates the nozzle on the inside roof of main switch board through the pipeline, when taking place the condition of a fire in the main switch board, the controller makes the judgement through the signal of first temperature sensor and smoke sensor collection, open automatically controlled valve, the nozzle erupts fire extinguishing material and puts out a fire, cut off main alternating current contactor 201 simultaneously, make 1 outage of main switch board, the risk of after burning has been reduced. The fireproof low-voltage power distribution cabinet can automatically extinguish the fire in the power distribution cabinet and avoid greater fire loss.
Furthermore, a louver used for ventilating and cooling is arranged on the side wall of the main power distribution cabinet, an opening and closing mechanism is arranged on the inner side of the louver, and the opening and closing mechanism can open or close the louver.
Preferably, the opening and closing mechanism comprises an electric push rod and a sealing plate, the electric push rod is fixedly connected to the inner side of the side wall of the main power distribution cabinet through a mounting bottom plate, the working end of the electric push rod is connected with the sealing plate, the sealing plate is pushed out by the electric push rod to seal the shutter, and the electric push rod is controlled by the controller to act.
Preferably, two opposite guide grooves are fixed on the inner side of the side wall of the main power distribution cabinet, the two guide grooves are respectively arranged corresponding to the two sides of the sealing plate, and the sealing plate can slide up and down along the guide grooves.
Preferably, a sealing rubber ring is arranged on the periphery of the louver and used for sealing a gap between the sealing plate and the inner side of the side wall of the main power distribution cabinet.
Furthermore, a second temperature sensor is further pasted on a shell of a power distribution component of the power distribution panel board, and the second temperature sensor is electrically connected to the input end of the controller.
Preferably, a buzzer is arranged on a cabinet door of the fire-fighting cabinet and electrically connected to an output end of the controller.
Furthermore, still be provided with the automatic fire extinguishing treasured in the one-level block terminal.
Further, the fire extinguisher specifically adopts a carbon dioxide fire extinguisher.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural view of a fire-proof low-voltage power distribution cabinet according to the present invention;
fig. 2 is a schematic perspective view of the fireproof low-voltage power distribution cabinet of the invention;
FIG. 3 is a schematic structural view of the inside of the side wall of the main distribution cabinet according to the present invention;
fig. 4 is a schematic diagram of the control principle of the present invention.
The automatic fire extinguishing system comprises a main power distribution cabinet 1, a power distribution panel 101, a shutter 102, a first temperature sensor 103, a second temperature sensor 104, a smoke sensor 105, a nozzle 106, a first-level power distribution panel 2, a main alternating current contactor 201, a fire-fighting cabinet 3, a 4-fire extinguisher 401, an electric control valve 5, a controller 501, a buzzer 501, an electric push rod 6, a mounting bottom plate 601, a sealing plate 7, a guide groove 701 and an automatic fire extinguishing device 8.
Detailed Description
The core of the invention is to provide the fireproof low-voltage power distribution cabinet, which can automatically extinguish the fire in the power distribution cabinet and avoid greater fire loss.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being 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.
Referring to the attached drawings, fig. 1 is a schematic structural view of a fireproof low-voltage power distribution cabinet in a front view; fig. 2 is a schematic perspective view of the fireproof low-voltage power distribution cabinet of the invention; FIG. 3 is a schematic structural view of the inside of the side wall of the main distribution cabinet according to the present invention; fig. 4 is a schematic diagram of the control principle of the present invention.
In a specific embodiment, as shown in fig. 1, fig. 2 and fig. 4, a fire prevention type low-voltage power distribution cabinet includes main power distribution cabinet 1, one-level block terminal 2 and fire control cabinet 3 are fixed in respectively 1 both sides of main power distribution cabinet, just one-level block terminal 2 with the bottom face of fire control cabinet 3 with the bottom face parallel and level of main power distribution cabinet 1.
The main power distribution cabinet 1 is provided with a cabinet door, a power distribution panel board 101 is arranged on an inner back plate, and a plurality of power distribution components for distributing power to various electric equipment are arranged on the power distribution panel board 101; a first temperature sensor 103, a smoke sensor 105 and a nozzle 106 are arranged on the inner top wall of the main power distribution cabinet 1.
A main alternating current contactor 201 and a control circuit board thereof are arranged in the first-stage distribution box 2, and a power line introduced by a power grid firstly passes through the main alternating current contactor 201 and then enters the main distribution box 1 for distribution.
A fire extinguisher 4 and a controller 5 are arranged in the fire-fighting cabinet 3, an outlet of the fire extinguisher 4 is provided with an electric control valve 401, and an outlet of the electric control valve 401 is communicated to the nozzle 106 through a pipeline; the input end of the controller 5 is electrically connected with the first temperature sensor 103 and the smoke sensor 105, and the output end of the controller 5 is electrically connected with the electric control valve 401 and the control coil of the main alternating current contactor 201; the power supply of the controller 5 is independent of the main power distribution cabinet 1 and the first-stage power distribution cabinet 2.
Set up one-level block terminal 2 and fire control cabinet 3 through the outside both sides at main switch board 1, main ac contactor 201 in the one-level block terminal 2 controls main switch board 1's input power, set up fire extinguisher 4 in the fire control cabinet 3, fire extinguisher 4 communicates nozzle 106 on the inside roof of main switch board 1 through the pipeline, when taking place the condition of a fire in main switch board 1, controller 5 makes the judgement through the signal of first temperature sensor 103 and smoke sensor 105 collection, open automatically controlled valve 401, nozzle 106 erupts the fire extinguishing material and puts out a fire, cut off main ac contactor 201 simultaneously, make main switch board 1 outage, the risk of after burning has been reduced. The fireproof low-voltage power distribution cabinet can automatically extinguish the fire in the power distribution cabinet and avoid greater fire loss.
In an embodiment of the present invention, as shown in fig. 1 and fig. 2, a louver 102 for ventilating and cooling is disposed on a side wall of the main power distribution cabinet 1, and two opposite louvers 102 and a wire inlet at the bottom of the main power distribution cabinet 1 can form an air flow, which is convenient for heat dissipation. An opening and closing mechanism is arranged inside the louver 102, and the opening and closing mechanism can open or close the louver 102.
Specifically, as shown in fig. 1 to 3, the opening and closing mechanism includes an electric push rod 6 and a sealing plate 7, the electric push rod 6 is connected to the mounting base plate 601 through a bolt, and is further fixedly connected to the inner side of the side wall of the main power distribution cabinet 1, and the mounting base plate 601 is welded to the inner side wall of the main power distribution cabinet 1. The working end of the electric push rod 6 is connected with the sealing plate 7, the sealing plate 7 is pushed out by the electric push rod 6 to seal the shutter 102, and the electric push rod 6 is controlled by the controller 5 to act. Obviously, the electric push rod 6 can be replaced by an air cylinder or a hydraulic cylinder, and an air source or a pump station is required, and similar modifications fall into the protection scope of the present invention.
Specifically, as shown in fig. 3, two oppositely disposed guide grooves 701 are fixed on the inner side of the side wall of the main distribution cabinet 1, the two guide grooves 701 are respectively arranged corresponding to two sides of the sealing plate 7, and the sealing plate 7 can slide up and down along the guide grooves 701.
Specifically, a sealing rubber ring is arranged on the periphery of louver 102, and the sealing rubber ring seals a gap between sealing plate 7 and the inner side of the side wall of main distribution cabinet 1.
The sealing plate 7 is pushed out and returned by the electric push rod 6, so that the shutter 102 can be closed and opened, the sealing plate 7 is in a returning state at ordinary times, the shutter 102 is opened, good ventilation flowing heat dissipation in the main power distribution cabinet 1 is guaranteed, and the local high-temperature condition is avoided; when an unexpected fire occurs, the nozzle 106 sprays the fire extinguishing material to extinguish the fire, and simultaneously the electric push rod 6 pushes out the sealing plate 7 to seal the shutter 102, so that the fire extinguishing material is not scattered from the shutter 102, and the re-burning after the fire extinguishment is prevented.
In an embodiment of the present invention, as shown in fig. 1, 2 and 4, a second temperature sensor 104 is further attached to a housing of a high-power distribution component of the switchboard panel 101, and the second temperature sensor 104 is electrically connected to an input terminal of the controller 5.
Specifically, a buzzer 501 and an alarm lamp 502 are provided on the cabinet door of the fire fighting cabinet 3, and the buzzer 501 and the alarm lamp 502 are electrically connected to the output end of the controller 5.
Through pasting second temperature sensor 104 on distribution components's shell, the temperature of high-power distribution components and parts is directly gathered to second temperature sensor 104, if overload is serious, and the temperature rise that generates heat exceeds and sets for the upper limit, and controller 5 control bee calling organ 501 and alarm lamp 502 send audible and visual alarm signal, and the operating personnel looks over around the notice.
In a specific embodiment of the present invention, as shown in fig. 2, an automatic fire extinguisher 8 is further disposed in the first-stage distribution box 2. If one-level block terminal 2 takes place unexpected condition of a fire, automatic fire extinguishing is precious 8 to explode the crack automatically after meeting fire, puts out a fire.
In any of the above embodiments, fire extinguisher 4 specifically adopts the carbon dioxide fire extinguisher, and the carbon dioxide erupts to use and has the effect of cooling and isolated air, can put out a fire rapidly, and protection electrical equipment does not receive the pollution moreover, is convenient for protect and restore, has reduced the fire loss.
In any of the above embodiments, as shown in fig. 4, the controller 5 in the present invention may adopt plc having an analog input module as a main control part, the input terminal row is connected to the first temperature sensor 103, the second temperature sensor 104 and the smoke sensor 105, and the output terminal row is connected to the main ac contactor 201, the electric control valve 401, the electric push rod 6, the buzzer 501 and the alarm lamp 502. Of course, the controller 5 may also adopt a special fire linkage alarm controller, providing a remote alarm function.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The fireproof low-voltage power distribution cabinet is characterized by comprising a main power distribution cabinet (1), a primary power distribution cabinet (2) and a fire-fighting cabinet (3), wherein the primary power distribution cabinet (2) and the fire-fighting cabinet (3) are respectively fixed on two sides of the main power distribution cabinet (1), and the bottom end surfaces of the primary power distribution cabinet (2) and the fire-fighting cabinet (3) are flush with the bottom end surface of the main power distribution cabinet (1);
a distribution panel board (101) is installed on a back plate in the main distribution cabinet (1), and distribution components are installed on the distribution panel board (101); a first temperature sensor (103), a smoke sensor (105) and a nozzle (106) are mounted on the top wall of the interior of the main power distribution cabinet (1);
a main alternating current contactor (201) is arranged in the first-stage distribution box (2), and a power line enters the main distribution box (1) through the main alternating current contactor (201) for distribution;
a fire extinguisher (4) and a controller (5) are arranged in the fire-fighting cabinet (3), an outlet of the fire extinguisher (4) is provided with an electric control valve (401), and an outlet of the electric control valve (401) is communicated to the nozzle (106) through a pipeline; the input end of the controller (5) is electrically connected with the first temperature sensor (103) and the smoke sensor (105), and the output end of the controller (5) is electrically connected with the electric control valve (401) and the control coil of the main alternating current contactor (201).
2. The fireproof low-voltage power distribution cabinet according to claim 1, wherein a louver (102) for ventilation and cooling is arranged on a side wall of the main power distribution cabinet (1), and an opening and closing mechanism is arranged inside the louver (102), and the opening and closing mechanism can open or close the louver (102).
3. The fireproof low-voltage power distribution cabinet according to claim 2, wherein the opening and closing mechanism comprises an electric push rod (6) and a sealing plate (7), the electric push rod (6) is fixedly connected to the inner side of the side wall of the main power distribution cabinet (1) through a mounting bottom plate (601), the working end of the electric push rod (6) is connected to the sealing plate (7), the sealing plate (7) is pushed out by the electric push rod (6) to seal the louver (102), and the electric push rod (6) is controlled by the controller (5) to act.
4. A fire-proof low-voltage power distribution cabinet according to claim 3, wherein two opposite guide grooves (701) are fixed on the inner side of the side wall of the main power distribution cabinet (1), the two guide grooves (701) are respectively arranged corresponding to two sides of the sealing plate (7), and the sealing plate (7) can slide up and down along the guide grooves (701).
5. The flameproof low-voltage distribution cabinet according to claim 4, characterized in that a sealing rubber ring is arranged around the louver (102) and used for sealing a gap between the sealing plate (7) and the inner side of the side wall of the main distribution cabinet (1).
6. A fire-proof low-voltage power distribution cabinet according to claim 1, wherein a second temperature sensor (104) is further adhered to the outer casing of the power distribution components of the power distribution panel board (101), and the second temperature sensor (104) is electrically connected to the input end of the controller (5).
7. A fireproof low-voltage distribution cabinet according to claim 5, wherein a buzzer (501) is arranged on the cabinet door of the fire-fighting cabinet (3), and the buzzer (501) is electrically connected to the output end of the controller (5).
8. A fire-proof low-voltage distribution cabinet according to claim 1, wherein a fire extinguisher (8) is further arranged in the first-stage distribution box (2).
9. The fireproof low-voltage power distribution cabinet according to any one of claims 1 to 8, wherein a carbon dioxide fire extinguisher is specifically used as the fire extinguisher (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011407709.5A CN112448289A (en) | 2020-12-04 | 2020-12-04 | Fireproof low-voltage power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011407709.5A CN112448289A (en) | 2020-12-04 | 2020-12-04 | Fireproof low-voltage power distribution cabinet |
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| Publication Number | Publication Date |
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| CN112448289A true CN112448289A (en) | 2021-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011407709.5A Pending CN112448289A (en) | 2020-12-04 | 2020-12-04 | Fireproof low-voltage power distribution cabinet |
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| CN (1) | CN112448289A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113314976A (en) * | 2021-06-21 | 2021-08-27 | 陕西惠齐电力科技开发有限公司 | Intelligent power distribution cabinet based on data monitoring and use method thereof |
| CN113498302A (en) * | 2021-06-22 | 2021-10-12 | 深圳市精致网络设备有限公司 | Inside and outside air circulation evenly cools down self-starting airtight fire extinguishing cabinet |
| CN113650522A (en) * | 2021-08-04 | 2021-11-16 | 深圳市速易宝智能科技有限公司 | Electric motor car intelligence cabinet that trades |
-
2020
- 2020-12-04 CN CN202011407709.5A patent/CN112448289A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113314976A (en) * | 2021-06-21 | 2021-08-27 | 陕西惠齐电力科技开发有限公司 | Intelligent power distribution cabinet based on data monitoring and use method thereof |
| CN113498302A (en) * | 2021-06-22 | 2021-10-12 | 深圳市精致网络设备有限公司 | Inside and outside air circulation evenly cools down self-starting airtight fire extinguishing cabinet |
| CN113498302B (en) * | 2021-06-22 | 2024-04-09 | 深圳市精致网络设备有限公司 | Self-starting airtight fire extinguishing cabinet with uniform cooling of internal and external air circulation |
| CN113650522A (en) * | 2021-08-04 | 2021-11-16 | 深圳市速易宝智能科技有限公司 | Electric motor car intelligence cabinet that trades |
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