CN214232473U

CN214232473U - Fire alarm fire extinguishing system based on lifting type underground transformer

Info

Publication number: CN214232473U
Application number: CN202022959031.3U
Authority: CN
Inventors: 张正国; 隰桂吉; 刘国海; 李念峰; 何亮; 何宏伟; 严文强
Original assignee: NANJING GAOLI ENGINEERING MACHINERY CO LTD
Current assignee: NANJING GAOLI ENGINEERING MACHINERY CO LTD
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-09-21
Anticipated expiration: 2030-12-09

Abstract

The utility model discloses a fire alarm fire extinguishing system based on transformer is buried to over-and-under type relates to electrical technology field. The system comprises a foundation pit, and a controller, a temperature detector, a spark detector, a smoke detector, a fire extinguishing device, an audible and visual alarm and an automatic dialing device which are arranged in the foundation pit; an accommodating groove is formed in the bottom of the foundation pit; the second glass plate is arranged in the accommodating groove, moves upwards to extend out of the accommodating groove, and can divide the foundation pit into a monitoring area and a working area; the controller controls the first fire extinguisher and the second fire extinguisher to work. The utility model discloses whether can detect the conflagration of whether taking place in the foundation ditch to when detecting the conflagration of taking place in the foundation ditch, the control fire extinguisher is put out a fire, still separates in with the foundation ditch through the second glass board in addition, has avoided the condition of a fire to stretch, destroys detection alarm mechanism.

Description

Fire alarm fire extinguishing system based on lifting type underground transformer

Technical Field

The utility model relates to an electrical technology field relates to the fire protection system in electrical field, a bury fire alarm fire extinguishing system of transformer based on over-and-under type.

Background

In order to not occupy urban roads and green areas and not influence urban appearances and pedestrian safety, a transformer structure of a power facility is arranged in an underground foundation pit, and a vertical lifting structure is added to the transformer. When the transformer works, a large number of electronic elements are arranged in the transformer, and a large amount of heat is generated when the transformer works. During normal operation, these heats can distribute out through the louvre on the cabinet body, but, in case when internal component breaks down, will produce a large amount of heats and pressure, the heat of the internal portion of cabinet can't be released very fast to the louvre on the cabinet body, will probably cause the danger that the transformer catches fire, brings huge potential safety hazard and economic loss.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that exists, the utility model provides a bury fire alarm fire extinguishing system of transformer based on over-and-under type, this fire alarm fire extinguishing system can detect whether the conflagration breaks out in the foundation ditch to when detecting the conflagration that breaks out in the foundation ditch, the control fire extinguisher is put out a fire, still separates in with the foundation ditch through the second glass board in addition, has avoided the condition of a fire to stretch, destroys detection alarm mechanism.

In order to achieve the above purpose, the utility model adopts the following scheme,

a fire alarm fire extinguishing system based on a lifting type underground transformer comprises a foundation pit, wherein a lifting device is arranged at the bottom of the foundation pit, the transformer is arranged in the foundation pit and is mounted on the lifting device, the lifting device can lift the transformer above the foundation pit, and a cover plate is further arranged at the top end of the foundation pit; the fire alarm fire extinguishing system further includes:

the detection alarm structure is arranged in the foundation pit, detects a fire in the foundation pit and gives an alarm;

the bottom of the foundation pit is provided with an accommodating groove;

the first fire extinguisher is arranged on the left side of the accommodating groove, and a spray head of the first fire extinguisher is provided with a first electromagnetic valve;

the second fire extinguisher is arranged on the right side of the accommodating groove, and a spray head of the second fire extinguisher is provided with a second electromagnetic valve;

the second glass plate is arranged in the accommodating groove, moves upwards to extend out of the accommodating groove, and can divide the foundation pit into a monitoring area and a working area;

the first threaded rod is arranged on the front side of the second glass plate, and two ends of the first threaded rod are respectively provided with a first bearing seat which is fixed on the inner wall of the accommodating groove;

the second threaded rod is arranged on the rear side of the second glass plate, and two ends of the second threaded rod are respectively provided with a second bearing seat which is fixed on the inner wall of the accommodating groove;

the first threaded sleeve is sleeved on the first threaded rod and fixed on the front side face of the lower end of the second glass plate;

a second threaded bushing; the second threaded rod is sleeved with the second threaded sleeve, and the second threaded sleeve is fixed on the rear side face of the lower end of the second glass plate;

the output shaft of the first motor is connected with the lower end of the first threaded rod;

and the output shaft of the second motor is connected with the lower end of the second threaded rod.

Furthermore, the detection alarm structure comprises a controller, the controller is respectively and electrically connected with the temperature detector, the spark detector, the smoke detector, the fire extinguishing device, the audible and visual alarm and the automatic dialing device, and the controller, the temperature detector and the automatic dialing device are fixed on the inner wall of the foundation pit; the spark detector and the smoke detector are fixed on the bottom surface of the cover plate; and the audible and visual alarm is fixed at the top of the inner wall of the foundation pit.

Still further, a window is formed in the cover plate, a first glass plate is fixed to the window, and the first glass plate is located right above the audible and visual alarm.

Still further, the controller is also connected with a first motor, a second motor, a first electromagnetic valve and a second electromagnetic valve.

Still further, the temperature detector, the spark detector, the smoke detector, the transformer and the lifting device are all located on the right side of the accommodating groove.

Still further, the controller, audible and visual alarm and automatic dialing device are located on the left side of the accommodating groove.

Still further, a camera is fixed on the left side wall of the foundation pit and is opposite to the transformer.

Still further, a standby power supply is also arranged in the foundation pit and is respectively and electrically connected with the controller, the temperature detector, the spark detector, the smoke detector, the fire extinguishing device, the audible and visual alarm, the automatic dialing device, the first motor, the second motor, the first electromagnetic valve and the second electromagnetic valve; and the standby power supply is arranged on the left side of the accommodating groove.

The fire alarm fire extinguishing system based on the lifting type underground transformer has the advantages that when the fire alarm fire extinguishing system works and no fire occurs, the second glass plate is positioned in the accommodating tank; when the temperature detector detects that the temperature in the foundation pit is higher than the normal temperature, or the spark detector detects that sparks occur in the foundation pit, or the smoke detector detects that the smoke concentration in the foundation pit is higher than the normal value, the fire condition occurs in the foundation pit, and at the moment, the controller controls the first motor and the second motor to work to drive the second glass plate to extend out of the accommodating groove to separate the foundation pit; meanwhile, the controller controls the first electromagnetic valve and the second electromagnetic valve to be opened, and the first fire extinguisher and the second fire extinguisher extinguish fire; the controller also controls the audible and visual alarm to work so as to remind people near the foundation pit of generating a fire; the controller also controls the automatic dialing device to dial to connect fire fighters and inform the fire situation position; in addition, the camera can also record the condition of the foundation pit in real time, video information is transmitted to the controller, and the controller stores or transmits the video information to the control terminal.

Bury fire alarm fire extinguishing systems of transformer based on over-and-under type advantage lies in:

1) the temperature detector, the spark detector and the smoke detector of the utility model can detect the temperature, the smoke concentration and the spark in the foundation pit, can find the fire in time when the fire happens, and control the fire extinguisher to extinguish the fire in time through the controller; 2) when the transformer takes place the condition of a fire, the second glass board can be separated the foundation ditch, blocks the condition of a fire of transformer and can't stretch, avoids it to destroy electrical equipment such as camera, controller, audible-visual annunciator, automatic dialing ware, stand-by power supply, guarantees that the detection alarm structure of conflagration normally works.

Drawings

Fig. 1 is the utility model discloses a fire alarm fire extinguishing systems's based on transformer is buried to over-and-under type structure schematic diagram.

FIG. 2 is an enlarged schematic view of a portion of the structure of FIG. 1

Fig. 3 is a schematic view of the structure of the plane a-a in fig. 2.

In the figure: 1-foundation pit, 1.1-accommodating groove, 1.2-monitoring area, 1.3-working area, 1.4-first bearing seat and 1.5-second bearing seat; 2-a transformer; 3-a lifting device; 4-cover plate, 4.1-window, 4.2-first glass plate; 5-a controller; 6-a temperature detector; 7-a spark detector; 8-a smoke detector; 9-fire extinguishing device, 9.1-first fire extinguisher, 9.11-first electromagnetic valve, 9.2-second fire extinguisher, 9.21-second electromagnetic valve; 9.3-a second glass plate, 9.4-a first threaded rod, 9.5-a second threaded rod, 9.6-a first threaded sleeve, 9.7-a second threaded sleeve, 9.8-a first motor, 9.9-a second motor; 10-audible and visual alarm; 11-automatic dialing means; 12-camera, 13-standby power supply.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

In the description of the present application, 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 are used in the orientations and positional relationships indicated in the drawings for convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.

Furthermore, the terms "first", "second", etc. 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. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. 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 being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1 and fig. 2, the embodiment provides a fire alarm fire extinguishing system based on a lifting type underground transformer, which includes a foundation pit 1, wherein a lifting device 3 is arranged at the bottom of the foundation pit 1, a transformer 2 is arranged in the foundation pit 1, the transformer 2 is mounted on the lifting device 3, the lifting device 3 can lift the transformer 2 above the foundation pit 1, and a cover plate 4 is further arranged at the top end of the foundation pit 1; the fire alarm fire extinguishing system further includes:

the detection alarm structure is arranged in the foundation pit 1, detects a fire in the foundation pit and gives an alarm; the detection alarm structure comprises a controller 5, the controller 5 is respectively and electrically connected with a temperature detector 6, a spark detector 7, a smoke detector 8, a fire extinguishing device 9, an audible and visual alarm 10 and an automatic dialing device 11, and the controller 5, the temperature detector 6 and the automatic dialing device 11 are fixed on the inner wall of the foundation pit 1; the spark detector 7 and the smoke detector 8 are fixed on the bottom surface of the cover plate 4; and the audible and visual alarm 10 is fixed at the top of the inner wall of the foundation pit 1.

In this embodiment, the model of the controller in this embodiment is 6ES7216-2BD23-0XB8, a control module, a digital-to-analog conversion module, and a data transmission module are disposed in the controller, and the control module is the CPU 226.

In the embodiment, the model of the temperature detector 6 is JTY-GF-TX6190, the temperature detector 6 detects the temperature of the working environment in the foundation pit 1 in a thermosensitive mode, when the temperature exceeds 55 ℃, the controller controls the audible and visual alarm to work so as to remind people near the foundation pit 1 of generating a fire, and controls the automatic dialing device 11 to dial to connect a fire fighter and inform the fire position.

In the embodiment, the model of the spark detector 7 is hy-001, and the spark detector 7 detects whether infrared radiation emitted by sparks occurs in the foundation pit 1; when the spark detector 7 detects infrared radiation emitted by sparks, the controller controls the audible and visual alarm to work so as to remind people near the foundation pit 1 of a fire, and controls the automatic dialing device 11 to dial to connect fire fighters and inform fire positions.

In this embodiment, the model of the smoke detector 8 is YJ-107, the smoke detector 8 monitors the smoke concentration in the foundation pit 1 in real time, when the smoke concentration is greater than or equal to 5% obs/m, it is determined that a fire occurs, the controller controls the operation of the audible and visual alarm to remind people near the foundation pit 1 of the occurrence of the fire, and controls the automatic dialing device 11 to dial to connect a fire fighter and inform the location of the fire.

The type of the audible and visual alarm 10 in the embodiment is LTE-1101J; in addition, in order to ensure that the alarm sent by the audible and visual alarm 10 can timely draw the attention of people nearby the foundation pit 1, a window 4.1 is formed in the cover plate 4, a first glass plate 4.2 is fixed at the window 4.1, and the first glass plate 4.2 is located right above the audible and visual alarm 10.

It should be noted here that the temperature detector 6, the spark detector 7, and the smoke detector 8 are respectively connected to the digital-to-analog conversion module of the controller 5; the temperature detector 6 detects the temperature in the foundation pit 1 to form a current signal, the spark detector 7 detects the spark in the foundation pit 1 to form a current signal, the smoke detector 8 detects the smoke concentration in the foundation pit 1 to form a current signal, and the current signal is converted into a voltage signal through the digital-to-analog conversion module of the controller 5 and transmitted to the control module of the controller 5. The automatic dialing device 11 is connected with a digital-to-analog conversion module of the controller 5, and the controller 5 transmits a dialed level signal to the digital-to-analog conversion module to convert the dialed level signal into a current signal to control the automatic dialing device 11 to dial an alarm call.

In this embodiment: the bottom of the foundation pit 1 is provided with an accommodating groove 1.1; the first fire extinguisher 9.1 is arranged on the left side of the accommodating groove 1.1, and a spray head of the first fire extinguisher 9.1 is provided with a first electromagnetic valve 9.11; the second fire extinguisher 9.2 is arranged on the right side of the accommodating groove 1.1, and a spray head of the second fire extinguisher 9.2 is provided with a second electromagnetic valve 9.21; the second glass plate 9.3 is arranged in the accommodating groove 1.1, and the second glass plate 9.3 moves upwards to extend out of the accommodating groove 1.1, so that the foundation pit 1 can be divided into a monitoring area 1.2 and a working area 1.3; the first threaded rod 9.4 is arranged on the front side of the second glass plate 9.3, the two ends of the first threaded rod 9.4 are respectively provided with a first bearing block 1.4, and the first bearing blocks 1.4 are fixed on the inner wall of the accommodating groove 1.1; the second threaded rod 9.5 is arranged on the rear side of the second glass plate 9.3, two ends of the second threaded rod 9.5 are respectively provided with a second bearing block 1.5, and the second bearing blocks 1.5 are fixed on the inner wall of the accommodating groove 1.1; the first threaded sleeve 9.6 is sleeved on the first threaded rod 9.4, and the first threaded sleeve 9.6 is fixed on the front side face of the lower end of the second glass plate 9.3; a second threaded sleeve 9.7; the second threaded rod 9.5 is sleeved with the second threaded sleeve 9.7, and the second threaded sleeve 9.7 is fixed on the rear side face of the lower end of the second glass plate 9.3; a first motor 9.8, the output shaft of which is connected with the lower end of the first threaded rod 9.4; and the output shaft of the second motor 9.9 is connected with the lower end of the second threaded rod 9.5.

In this embodiment, the controller 5 is further connected to a first motor 9.8, a second motor 9.9, a first electromagnetic valve 9.11 and a second electromagnetic valve 9.21. When a fire disaster happens, the controller 5 can control the first motor 9.8, the second motor 9.9, the first electromagnetic valve 9.11 and the second electromagnetic valve 9.21 to work; it should be noted here that the controller 5 in this embodiment is a relay output, that is, the controller 5 is connected to a plurality of relays through a switch circuit, and the normally open contacts of the different relays are connected in series between the first motor 9.8 and the power supply, between the second motor 9.9 and the power supply, between the first solenoid valve 9.11 and the power supply, and between the second solenoid valve 9.21 and the power supply.

As the probability of fire of the transformer is the greatest among the electronic components in the foundation pit 1, the temperature detector 6, the spark detector 7, the smoke detector 8, the transformer 2 and the lifting device 3 are all positioned on the right side of the accommodating groove 1.1; it is ensured that these detection elements can also continue to detect fires after the second glass plate 9.3 separates the foundation pit 1. The controller 5, the audible and visual alarm 10 and the automatic dialing device 11 are positioned on the left side of the accommodating groove 1.1; after the second glass plate 9.3 separates the foundation pit 1, the controllers 5, the audible and visual alarm 10 and the automatic dialing device 11 can still work continuously and are not damaged by fire.

In order to further detect the fire condition of the transformer 2, a camera 12 is fixed on the left side wall of the foundation pit 1, and the camera 12 is over against the transformer 2.

When a fire disaster occurs, in order to ensure that the system of the utility model can normally operate, a standby power supply 13 is also arranged in the foundation pit 1, and the standby power supply 13 is respectively and electrically connected with the controller 5, the temperature detector 6, the spark detector 7, the smoke detector 8, the fire extinguishing device 9, the audible and visual alarm 10, the automatic dialing device 11, the first motor 9.8, the second motor 9.9, the first electromagnetic valve 9.11 and the second electromagnetic valve 9.21; and the standby power supply 13 is disposed on the left side of the accommodating groove 1.1.

In the fire alarming and extinguishing system based on the lifting type underground transformer, when the system works and no fire occurs, the second glass plate 9.3 is positioned in the accommodating groove 1.1; when the temperature detector 6 detects that the temperature in the foundation pit 1 is higher than the normal temperature, or the spark detector 7 detects that sparks occur in the foundation pit 1, or the smoke detector 8 detects that the smoke concentration in the foundation pit 1 is higher than the normal value, the fire situation occurs in the foundation pit 1, and at the moment, the controller controls the first motor 9.8 and the second motor 9.9 to work to drive the second glass plate 9.3 to extend out of the accommodating groove 1.1, so that the foundation pit 1 is separated; meanwhile, the controller 5 controls the first electromagnetic valve 9.11 and the second electromagnetic valve 9.21 to be opened, and the first fire extinguisher 9.1 and the second fire extinguisher 9.2 extinguish fire; the controller 5 also controls the audible and visual alarm 10 to work so as to remind people near the foundation pit 1 of a fire; the controller 5 also controls the automatic dialing device 11 to dial to connect the fire fighters and inform the fire position; in addition, the camera 12 can also record the condition of the foundation pit 1 in real time, and transmit video information to the controller, and the controller stores or transmits screen information to the control terminal.

Claims

1. A fire alarm fire extinguishing system based on a lifting type underground transformer comprises a foundation pit (1), wherein a lifting device (3) is arranged at the bottom of the foundation pit (1), a transformer (2) is arranged in the foundation pit (1), the transformer (2) is installed on the lifting device (3), the lifting device (3) can lift the transformer (2) above the foundation pit (1), and a cover plate (4) is further arranged at the top end of the foundation pit (1);

characterized in that, fire alarm fire extinguishing system still includes:

the detection alarm structure is arranged in the foundation pit (1), detects a fire in the foundation pit and gives an alarm;

the foundation pit supporting structure comprises a containing groove (1.1), wherein the containing groove (1.1) is formed in the bottom of the foundation pit (1);

the first fire extinguisher (9.1) is arranged on the left side of the accommodating groove (1.1), and a spray head of the first fire extinguisher (9.1) is provided with a first electromagnetic valve (9.11);

the second fire extinguisher (9.2) is arranged on the right side of the accommodating groove (1.1), and a spray head of the second fire extinguisher (9.2) is provided with a second electromagnetic valve (9.21);

the second glass plate (9.3) is arranged in the accommodating groove (1.1), and the second glass plate (9.3) moves upwards to extend out of the accommodating groove (1.1), so that the foundation pit (1) can be divided into a monitoring area (1.2) and a working area (1.3);

the first threaded rod (9.4) is arranged on the front side of the second glass plate (9.3), first bearing seats (1.4) are mounted at two ends of the first threaded rod (9.4), and the first bearing seats (1.4) are fixed on the inner wall of the accommodating groove (1.1);

the second threaded rod (9.5) is arranged on the rear side of the second glass plate (9.3), two ends of the second threaded rod (9.5) are provided with second bearing seats (1.5), and the second bearing seats (1.5) are fixed on the inner wall of the accommodating groove (1.1);

the first threaded sleeve (9.6) is sleeved on the first threaded rod (9.4), and the first threaded sleeve (9.6) is fixed on the front side surface of the lower end of the second glass plate (9.3);

a second threaded bushing (9.7); the second threaded rod (9.5) is sleeved with the second threaded sleeve (9.7), and the second threaded sleeve is fixed on the rear side face of the lower end of the second glass plate (9.3);

a first motor (9.8), the output shaft of which is connected with the lower end of the first threaded rod (9.4);

and the output shaft of the second motor (9.9) is connected with the lower end of the second threaded rod (9.5).

2. The fire alarming and extinguishing system based on the lifting type underground transformer as claimed in claim 1, wherein: the detection alarm structure comprises a controller (5), wherein the controller (5) is respectively and electrically connected with a temperature detector (6), a spark detector (7), a smoke detector (8), a fire extinguishing device (9), an audible and visual alarm (10) and an automatic dialing device (11), and the controller (5), the temperature detector (6) and the automatic dialing device (11) are fixed on the inner wall of the foundation pit (1); the spark detector (7) and the smoke detector (8) are fixed on the bottom surface of the cover plate (4); and the audible and visual alarm (10) is fixed at the top of the inner wall of the foundation pit (1).

3. The fire alarming and extinguishing system based on the lifting type underground transformer as claimed in claim 2, wherein: a window (4.1) is formed in the cover plate (4), a first glass plate (4.2) is fixed at the window (4.1), and the first glass plate (4.2) is located right above the audible and visual alarm (10).

4. The fire alarming and extinguishing system based on the lifting type underground transformer as claimed in claim 2, wherein: the controller (5) is also connected with a first motor (9.8), a second motor (9.9), a first electromagnetic valve (9.11) and a second electromagnetic valve (9.21).

5. The fire alarming and extinguishing system based on the lifting type underground transformer as claimed in claim 4, wherein: temperature detector (6), spark detector (7), smoke detector (8), transformer (2) and elevating gear (3) all are located the right side of holding tank (1.1).

6. The fire alarming and extinguishing system based on the lifting type underground transformer as claimed in claim 4, wherein: the controller (5), the audible and visual alarm (10) and the automatic dialing device (11) are located on the left side of the accommodating groove (1.1).

7. The fire alarming and extinguishing system based on the lifting type underground transformer as claimed in claim 4, wherein: the left side wall of foundation ditch (1) is fixed with camera (12), just camera (12) are just to transformer (2).

8. The fire alarming and extinguishing system based on the lifting type underground transformer as claimed in claim 7, wherein: a standby power supply (13) is further arranged in the foundation pit (1), and the standby power supply (13) is respectively and electrically connected with the controller (5), the temperature detector (6), the spark detector (7), the smoke detector (8), the fire extinguishing device (9), the audible and visual alarm (10), the automatic dialing device (11), the first motor (9.8), the second motor (9.9), the first electromagnetic valve (9.11) and the second electromagnetic valve (9.21); and the standby power supply (13) is arranged on the left side of the accommodating groove (1.1).