CN210904782U

CN210904782U - Fire-fighting system for urban switching station

Info

Publication number: CN210904782U
Application number: CN201921754432.6U
Authority: CN
Inventors: 林茂盛; 王雷; 郝斐; ***; 赵骁驰
Original assignee: State Grid Corp of China SGCC; Puyang Power Supply Co of State Grid Henan Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; Puyang Power Supply Co of State Grid Henan Electric Power Co Ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-07-03
Anticipated expiration: 2029-10-18

Abstract

The utility model provides a fire control fire extinguishing systems for city switching station, including conflagration automatic alarm subsystem and automatic fire extinguishing subsystem, conflagration automatic alarm subsystem and automatic fire extinguishing subsystem all are connected with the fire control host computer, and conflagration automatic alarm subsystem includes fire alarm controller, and fire alarm controller is connected with fire detector, input module, output module, manual start button, audible-visual annunciator and fire control host computer respectively, fire detector includes first suction detector and second suction detector, and first suction detector and second suction detector all are connected with fire alarm controller through the two buses, and the second suction detector cooperatees with rack, return air pipeline and return air grid respectively through the sampling pipeline. The utility model discloses a suction-type smoke detector can be very early detect the condition of a fire, in time take measures, guarantee switching station safe operation, secondly reduce the unnecessary start-up of the subsystem of putting out a fire, reduce maintenance work volume.

Description

Fire-fighting system for urban switching station

Technical Field

The utility model relates to a city switching station fire alarm's technical field especially relates to a fire extinguishing systems for city switching station.

Background

The city switching station is for fire prevention of general meaning relatively, and the computer lab has self characteristics, mainly embodies in following several: 1. flammable articles are various, a large number of instruments and equipment with complete functions and high prices, wires and cables and various storage media are arranged in a modern electronic communication machine room, wherein components and cable insulation jackets in the equipment are made of flammable materials such as carbolic acid fibers and polyvinyl chloride, and the flammable materials are easy to burn and cause disastrous results. 2. The fire disaster is induced by various mechanisms, and the generated hazards are various, and the fire disaster can be induced by various reasons, including traditional reasons and various reasons based on the characteristics of the electronic equipment room. According to statistics, among various reasons causing machine room fire, 28% of fire is caused by a machine room power supply system (an alternating current/direct current power supply, a battery, a generator, a power supply line and the like), 18% of fire is caused by other electrical equipment in a building where the machine room is located, wherein the electrical equipment comprises an elevator, an air conditioner, a heating device, a lighting system and the like, and 35% of fire is directly caused by components inside electronic equipment in the machine room. Once the equipment in the machine room is in fire, direct damage can be caused to the equipment, and the gas generated by burning special materials in the equipment in the machine room has strong corrosivity and can cause long-term damage to the equipment. 3. The equipment in the machine room is expensive, the sensitivity to fire is extremely high, compared with the prior art, the modern electronic equipment is increasingly advanced and the price is very expensive. Damage to one module will cause a significant loss. Along with the development of science and technology, electronic products are higher in integration degree and smaller in size, so that the fire hazard in a unit space is larger and larger. The equipment cabinet is generally changed from 4 meters to about 2 meters at present, and the equipment originally arranged in a plurality of rooms can be concentrated in one machine room, so that a fire disaster happens to one machine room, and the fire disaster has serious consequences on the facility and the electric power operation. In addition, due to the high integration of the equipment, the requirement of the equipment operation on the environment is higher and higher, and the temperature rise of components and parts till the combustion are easier to cause by the change of any temperature and humidity. 4. Air conditioning facilities are complete, fire detection is difficult, air conditioning systems are widely adopted due to the requirement of machine room environment, and smoke transmission and diffusion become easier.

However, the existing fire detection means in the switching station is insufficient, the traditional point type fire detectors are all in passive detection, and the installation positions are all on the top. Under the influence of air flow of air conditioner operation, smoke particles can be quickly diluted by the air flow, move along with the movement track of the air flow and cannot rise to the top in the initial stage of a fire, so that the point type smoke detector is not suitable for environments with high air flow, such as a machine room area; in summary, in the switching station and the operating environment thereof, the main reason that a fire may be caused is an electrical fire, and generally, the smoke amount is very small at the initial stage of the fire (smoldering fire stage), so that the fire is difficult to be found by the conventional fire alarm equipment, and early warning of the fire cannot be realized; meanwhile, for the alarm equipment which runs in the power station environment for a long time, the alarm equipment has the characteristics of humidity, dustiness, various space changes (narrow space and high space), strong airflow and the like, and brings great challenges for effective and long-term stable detection. Therefore, in the present day era where new technology and new products emerge endlessly, in combination with successful application experience of substations at home and abroad, it is suggested that in such environmental conditions, fire detection and alarm means with better detection effect, more advanced technology and simpler and more convenient maintenance should be adopted to achieve the purposes of comprehensive protection, early warning, early evacuation and disaster prevention, so as to better guarantee the normal operation of the power system and the safe power utilization of people.

SUMMERY OF THE UTILITY MODEL

To the early condition of starting of traditional fire alarm equipment hardly discover the conflagration in present switching station to traditional point type fire detector is passive form and surveys, and the mounted position all is at the top, and detection range and detection precision are difficult to satisfy the technical problem of the conflagration demand of taking precautions against in the current switching station, the utility model provides a fire extinguishing system for city switching station.

In order to solve the above problem, the technical scheme of the utility model is so realized:

the utility model provides a fire control fire extinguishing system for city switching station, includes conflagration autoalarm subsystem and automatic fire extinguishing subsystem, and conflagration autoalarm subsystem and automatic fire extinguishing subsystem all are connected with fire control host computer, and conflagration autoalarm subsystem includes fire alarm control ware, and fire alarm control ware is connected with fire detector, input module, output module, manual start button, audible-visual annunciator and fire control host computer respectively, fire detector includes first suction detector and second suction detector, and first suction detector and second suction detector all are connected with fire alarm control ware through two buses, and second suction detector cooperatees with rack, return air pipeline and return air grid respectively through the sampling pipeline.

Preferably, the first suction detector and the second suction detector both comprise a smoke detector and a suction power base, the smoke detector comprises a shell, a detection cavity is arranged in the shell, an air suction port is formed in the upper portion of the shell and communicated with the detection cavity, the detection cavity is communicated with the suction power base, a suction pump is mounted in the suction power base and connected with an external power supply; and an air suction pipe is arranged outside an air suction port of the smoke detector in the second suction type detector and is communicated with a sampling pipeline.

Preferably, an air speed sensor is arranged between the air suction port and the detection cavity and inside the shell, and the air speed sensor is connected with the fire alarm controller; and a filtering membrane is arranged at the communication part of the air suction port and the detection cavity.

Preferably, a temperature probe is further installed between the air suction port and the detection cavity and inside the shell, and the temperature probe is connected with the fire alarm controller.

Preferably, a laser light source, a laser receiver and an electrochemical CO sensor are arranged in the detection cavity, the laser light source is matched with the laser receiver, and the laser receiver and the electrochemical CO sensor are both connected with the fire alarm controller.

Preferably, the sampling pipeline includes the sampling pipe, and the one end of sampling pipe is linked together and the shape of breathing in the pipeline is L style of calligraphy, I style of calligraphy, T style of calligraphy or H style of calligraphy sampling pipeline with the breathing pipe of second suction type detector, and the end cap is installed to the other end of sampling pipe, has seted up a plurality of sampling point on the sampling pipe, and the sampling point cooperatees with rack, return air pipeline and return air grid respectively.

Preferably, the second suction type detector is installed at the top of the cabinet, the cabinet is communicated with the sampling point through a capillary sampling pipe, or the second suction type detector is installed at one side of the cabinet, and the sampling point is matched with a ventilation grille at the top of the cabinet.

Preferably, the second suction type detector is installed outside the return air pipeline, the sampling pipe penetrates into the return air pipeline and the joint of the sampling pipe and the return air pipeline is provided with the sealing ring, the end of the sampling pipe penetrating into the return air pipeline is provided with a plurality of sampling points, the sampling points are matched with the return air pipeline or the second suction type detector is installed inside the return air pipeline, and the sampling points are matched with the return air pipeline.

Preferably, the second suction detector is installed outside the return air grille, the sampling pipe is arranged on the return air grille in an overlapping mode, and the sampling point and the return air grille are arranged correspondingly.

Preferably, the automatic fire extinguishing subsystem is a dry powder fire extinguishing subsystem or a carbon dioxide fire extinguishing subsystem.

The utility model has the advantages that: the utility model discloses a first suction detector and second suction detector install respectively in mobile base station, communication computer lab, switch board and return air duct department, utilize first suction detector and second suction detector to detect each place fire situation respectively and send the fire alarm information of field collection to fire alarm controller, fire alarm controller transmits alarm information to the fire control host computer, the fire control host computer controls the automatic fire extinguishing subsystem to start according to the alarm position information and carries out the processing of putting out a fire; the first suction detector and the second suction detector have an airflow detection function, can monitor the conditions of falling of a sampling pipeline, blockage of a sampling hole and the like in real time, and are convenient for operation and maintenance personnel to maintain regularly, and meanwhile, a filtering membrane additionally arranged between the air suction port and the detection cavity can filter out particles such as dust, water vapor, mosquitoes and the like so as to avoid product misinformation caused by non-fire factors; and the problem that the traditional detection mode is not suitable for long occasions and cannot be installed and used is solved through the arrangement of the sampling pipeline, the investment of detection equipment is greatly reduced by using the sampling pipeline, and the maintenance cost is reduced.

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 some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the automatic fire alarm subsystem of the present invention.

Fig. 2 is a schematic structural diagram of a first absorption detector according to the present invention.

Fig. 3 is an exploded view of fig. 2.

Fig. 4 is a schematic structural diagram of a second slot-in type detector according to the present invention.

Fig. 5 is a schematic view of the installation of fig. 4.

Fig. 6 is a schematic connection diagram of the external sampling tube in fig. 4.

Fig. 7 is a schematic view (a) of the installation of the second suction probe and the sampling tube.

Fig. 8 is a schematic view (b) of the installation of the second suction probe and the sampling tube.

Fig. 9 is a schematic view (c) of the installation of the second suction probe and the sampling tube.

Fig. 10 is a schematic view (d) of the installation of the second suction detector and the sampling tube.

Fig. 11 is a schematic view of the second suction type probe installed outside the return duct.

Fig. 12 is a schematic view of the second suction detector installed inside the return duct.

Fig. 13 is a schematic view of the second suction detector mounted outside the return air grille.

In the figure, 1 is a fire alarm controller, 2 is a first suction detector, 3 is a second suction detector, 31 is an air suction pipe, 4 is a filtering film, 5 is a manual start button, 6 is an input module, 7 is an output module, 8 is an audible and visual alarm, 9 is an air suction power base, 10 is an air production pipe, 101 is a capillary air production pipe, 102 is a sampling point, 103 is a sealing ring, and 104 is an end cap.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

As shown in fig. 1, a fire-fighting system for an urban switching station comprises an automatic fire alarm subsystem and an automatic fire extinguishing subsystem, wherein the automatic fire alarm subsystem and the automatic fire extinguishing subsystem are both connected with a fire control host, the automatic fire extinguishing subsystem is a dry powder fire extinguishing subsystem or a carbon dioxide fire extinguishing subsystem, the automatic fire alarm subsystem comprises a fire alarm controller 1 which adopts an FGS-BK8000 wall-mounted fire alarm controller, the fire alarm controller 1 is respectively connected with a fire detector, an input module 6, an output module 7, a manual starting button 5, an audible and visual alarm 8 and the fire control host, the manual starting button is a J-SAB-BK8400 alarm button, the audible and visual alarm adopts an SG-BK8010B audible and visual alarm, as shown in fig. 2 and 3, the fire detector comprises a first suction detector 2 and a second suction detector 3, first suction detector and second suction detector all can install at the mobile base station, communication computer lab, the switch board, the air conditioner return air inlet, air pipe, little regional department such as cable intermediate layer, first suction detector is the point type detector, second suction detector is pipeline formula detector, first suction detector 2 and second suction detector 3 all are connected with fire alarm controller 1 through the two buses, second suction detector 3 respectively with the rack through the sampling pipeline, return air pipeline and return air grid cooperate and are used for in the rack, return air pipeline and return air grid department special area carry out the sampling detection, can make the detector setting in any area that needs the early detection of conflagration through the nimble arrangement of sampling pipeline.

The first suction detector 2 and the second suction detector 3 both comprise a smoke detector and a suction power base 9, the smoke detector comprises a shell, a detection cavity is arranged in the shell, a laser light source, a laser receiver and an electrochemical CO sensor are arranged in the detection cavity, the laser light source is matched with the laser receiver, the laser receiver and the electrochemical CO sensor are both connected with the fire alarm controller 1, a large amount of CO gas is generally generated in the stage of fire ignition, the smoke detector detects and analyzes the CO gas introduced into the detection cavity, so that the detector comprehensively detects the concentration of smoke particles and smoke gas, the accuracy and authenticity of the detector for fire judgment are improved, meanwhile, the monitoring of the CO gas can play a role in warning for evacuation and escape of field personnel, an air suction port is arranged on the upper part of the shell, and the air suction port is communicated with the detection cavity, the detection cavity is communicated with the air suction power base 9, an air suction pump is installed in the air suction power base 9 and connected with an external power supply, as shown in fig. 5, the air suction power base is fixed on a pre-buried box, and the pre-buried box is connected with a threading pipe and used for threading a cable; as shown in fig. 4, an air suction pipe 31 is installed outside an air suction port of the smoke detector in the second suction type detector 3, and the air suction pipe 31 is communicated with a sampling pipeline.

Between induction port and the detection chamber and at casing internally mounted have air velocity transducer, air velocity transducer is connected with fire alarm controller 1, utilizes air velocity transducer to monitor smoke detector suction air speed, is convenient for monitor sampling hole whether appear blockking up or the aspirator pump obstacle appears, filtration membrane 4 is installed with the intercommunication department that detects the chamber to the induction port, utilizes filtration membrane can filter particles such as dust, vapor, mosquito to non-fire factor arouses the product wrong report.

And a temperature probe is also arranged between the air suction port and the detection cavity and in the shell, is connected with the fire alarm controller 1, and is used for carrying out temperature compensation on the sensitivity of the detector and also playing an auxiliary role in determining a fire disaster due to the temperature change in the fire disaster occurrence process.

As shown in fig. 6, the sampling line includes a sampling pipe 10, one end of the sampling pipe 10 is communicated with the suction pipe 31 of the second suction detector 3, as shown in fig. 7-10, the sampling pipe is in the shape of L-shaped, I-shaped, T-shaped or H-shaped sampling pipe, the arrangement requirements of various scenes are met through various arrangement modes of the sampling pipelines, the fire detection of various areas is guaranteed, the comprehensive protection of the whole room, the roof, the return air inlet, the cabinet and the cable dense area is guaranteed, the smoke detector can give an early warning in the very early stage of the fire no matter which area is in fire, the service interruption is prevented, meanwhile, the operation and maintenance personnel are convenient to maintain, the end cap 104 is installed at the other end of the sampling pipe 10, a plurality of sampling points 102 are arranged on the sampling pipe 10, and the sampling points 102 are respectively matched with the cabinet, the return air pipeline and the return air grille.

The second suction type detector 3 is arranged at the top of the cabinet, the cabinet is communicated with the sampling point 102 through the capillary sampling pipe 101, or the second suction type detector 3 is arranged at one side of the cabinet, and the sampling point 102 is matched with a ventilation grille at the top of the cabinet.

As shown in fig. 11, the second suction detector 3 is installed outside the return air duct, the sampling pipe 9 penetrates inside the return air duct, and the joint of the sampling pipe 10 and the return air duct is provided with the sealing ring 103, the end of the sampling pipe 9 penetrating into the return air duct is provided with a plurality of sampling points 102, the opening direction of the sampling points is perpendicular to the direction of the airflow and the smoke movement, and the sampling points 102 are matched with the return air duct to be used for detecting the smoke condition in the return air duct, or as shown in fig. 12, if the installation position is limited, the second suction detector 3 can be installed inside the return air duct, and the smoke condition of the return air duct is detected by matching the sampling points 102 with the return air duct.

As shown in fig. 13, the second suction detector 3 is installed outside the return air grille, the sampling pipe 9 is erected on the return air grille, the sampling point 102 is arranged corresponding to the return air grille, so that the airflow or smoke can be conveniently blown into the sampling point, the tail end of the sampling pipe at the grille is required to be closed, the loss of the sucked gas from the tail end of the pipeline is avoided, the end cap is required to be used for closing in this case, and the number of the sampling pipes on the grille is at least two, so that the whole grille can be conveniently covered.

The utility model discloses wholly utilize first suction detector and second suction detector application laser technology, and adopt the inspiratory mode of initiative, consequently can be very early detect the condition of a fire, in time take measures, in order to guarantee that important system can safe work in succession, it can reduce the start-up of automatic fire extinguishing subsystem unnecessary, avoid the secondary loss that automatic fire extinguishing system caused to equipment and refill the gas expensive expense, and can survey the unsuitable occasion installation of mode and use in the tradition, reduce the work load of fortune dimension personnel normal maintenance, reduce the maintenance cost, can fully strive for the time, reduce the loss of equipment and guarantee personnel's safety.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A fire-fighting system for an urban switching station comprises an automatic fire alarm subsystem and an automatic fire extinguishing subsystem, wherein the automatic fire alarm subsystem and the automatic fire extinguishing subsystem are connected with a fire control host, the automatic fire alarm subsystem comprises a fire alarm controller (1), the fire alarm controller (1) is respectively connected with a fire detector, an input module (6), an output module (7), a manual start button (5), an audible and visual alarm (8) and the fire control host, and the fire-fighting system is characterized in that the fire detector comprises a first suction detector (2) and a second suction detector (3), the first suction detector (2) and the second suction detector (3) are respectively connected with the fire alarm controller (1) through two buses, and the second suction detector (3) is respectively connected with a cabinet and a cabinet through sampling pipelines, The return air pipeline is matched with the return air grille.

2. The fire-fighting and fire-extinguishing system for the urban switching station according to claim 1, wherein the first suction detector (2) and the second suction detector (3) each comprise a smoke detector and a suction power base (9), the smoke detectors comprise a housing, a detection cavity is arranged in the housing, an air suction port is formed in the upper portion of the housing and communicated with the detection cavity, the detection cavity is communicated with the suction power base (9), a suction pump is installed in the suction power base (9) and connected with an external power supply; an air suction pipe (31) is installed on the outer side of an air suction port of the smoke detector in the second suction type detector (3), and the air suction pipe (31) is communicated with the sampling pipeline.

3. A fire extinguishing system for urban switchgears according to claim 2, characterized in that an air speed sensor is installed between the air suction port and the detection chamber and inside the housing, the air speed sensor being connected to the fire alarm controller (1); and a filtering membrane (4) is arranged at the communication part of the air suction port and the detection cavity.

4. A fire fighting system for urban switchgears according to claim 2 or 3, characterized in that a temperature probe is also installed between the suction opening and the detection chamber and inside the housing, the temperature probe being connected to the fire alarm controller (1).

5. Fire extinguishing system for urban switching substations according to claim 4, characterized in that a laser light source, a laser receiver and an electrochemical CO sensor are installed in the detection chamber, the laser light source and the laser receiver are matched, and both the laser receiver and the electrochemical CO sensor are connected with the fire alarm controller (1).

6. The fire-fighting fire extinguishing system for the urban switching station according to claim 1 or 2, wherein the sampling pipeline comprises a sampling pipe (10), one end of the sampling pipe (10) is communicated with an air suction pipe (31) of the second suction detector (3), the sampling pipe is L-shaped, I-shaped, T-shaped or H-shaped, an end cap (104) is installed at the other end of the sampling pipe (10), a plurality of sampling points (102) are arranged on the sampling pipe (10), and the sampling points (102) are respectively matched with the cabinet, the return air pipeline and the return air grille.

7. A fire fighting system for urban switchgears according to claim 6, characterized in that the second suction detector (3) is mounted on the top of the cabinet and the cabinet is in communication with the sampling point (102) through a capillary sampling pipe (101) or the second suction detector (3) is mounted on one side of the cabinet and the sampling point (102) is fitted with a ventilation grille on the top of the cabinet.

8. A fire extinguishing system for an urban switching station according to claim 6, wherein the second suction detector (3) is installed outside the return air duct, the sampling pipe (10) penetrates into the return air duct, a sealing ring (103) is installed at the joint of the sampling pipe (10) and the return air duct, a plurality of sampling points (102) are arranged at the end of the sampling pipe (10) penetrating into the return air duct, the sampling points (102) are matched with the return air duct or the second suction detector (3) is installed inside the return air duct, and the sampling points (102) are matched with the return air duct.

9. A fire fighting system for urban switchgears according to claim 6, characterized in that the second suction detector (3) is mounted outside the return air grille on which the sampling pipe (10) is set and the sampling points (102) are arranged in correspondence with the return air grille.

10. A fire fighting system for urban switchgears according to claim 1, characterized in that the automatic fire extinguishing subsystem is a dry powder extinguishing subsystem or a carbon dioxide extinguishing subsystem.