CN114887257B - Transformer substation direct-current fire escape method based on lithium iron phosphate storage battery - Google Patents
Transformer substation direct-current fire escape method based on lithium iron phosphate storage battery Download PDFInfo
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- CN114887257B CN114887257B CN202210521200.6A CN202210521200A CN114887257B CN 114887257 B CN114887257 B CN 114887257B CN 202210521200 A CN202210521200 A CN 202210521200A CN 114887257 B CN114887257 B CN 114887257B
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- 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
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/04—Control of fire-fighting equipment with electrically-controlled release
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
A transformer substation direct-current fire escape method based on a lithium iron phosphate storage battery is characterized in that when a fire controller sends out a fire or a fire is started, a life detector on an escape detection and guidance device rapidly scans and detects a direct-current load chamber and a storage battery chamber through multi-axis rotation positioning, whether a person exists in the storage battery chamber is checked, if the person exists, a laser guidance generator sends out a laser light beam to irradiate the human body, the laser light beam moves to escape channels in two laser lamp strips at the shortest distance from the position of the human body, escape guidance is carried out on the person, and the escape direction error of indoor personnel caused by smoke is prevented. Utilize the fire control controller and personnel to flee and guide the communication linkage of controller for when the battery room takes place the condition of a fire and starts the fire control, can detect the location and flee for one's life and guide to the personnel rapidly, make abundant time of fleing fully shorten, and can provide fine fire control effect.
Description
Technical Field
The invention relates to the technical field of direct current systems of transformer substations, in particular to a direct current fire escape method of a transformer substation based on a lithium iron phosphate storage battery.
Background
The P-O bond in the lithium iron phosphate crystal is stable and difficult to decompose, and the structure of the lithium iron phosphate crystal does not collapse and generate heat or form a strong oxidizing substance like lithium cobaltate even at high temperature or during overcharge, so the lithium iron phosphate crystal has good safety. The cycle life of the long-life lead-acid battery is about 300 times, namely 500 times of lithium iron phosphate batteries, while the cycle life of the lithium iron phosphate power battery reaches more than 2000 times, and the standard charging (5 hour rate) can reach 2000 times. The lead-acid battery with the same quality is a new half year, an old half year, and a half year after maintenance, namely 1-1.5 years at most, and the theoretical life of the lithium iron phosphate battery can reach 7-8 years when the lithium iron phosphate battery is used under the same condition. Comprehensively considered, the cost performance is more than 4 times of that of the lead-acid battery theoretically.
Due to the characteristics, the lithium iron phosphate battery is widely applied to new energy power batteries, and the cost advantage of the lithium iron phosphate battery is fully exerted. However, in a direct current system of a transformer substation, a lead-acid storage battery is always used in a storage battery part due to technical inheritance, the self-discharge rate of the lead-acid storage battery is high, the self-discharge current is 1 mA/Ah, and the full capacity is ensured only through long-term floating charge. The lithium iron phosphate battery has low self-discharge rate, basically does not need to supplement self-discharge capacity, and can cause overcharge of the lithium battery if floating charge is carried out for a long time, so that the danger of the lithium iron phosphate battery is increased, therefore, the lithium iron phosphate battery cannot be directly replaced by a lithium iron phosphate storage battery in a direct current system, and the safety of matching the lithium iron phosphate storage battery with the direct current system of a transformer substation also needs to be subjected to long-term experimental study.
In order to ensure the application of the lithium iron phosphate storage battery in a direct current system of a transformer substation, the lithium iron phosphate storage battery needs to be subjected to complete fire protection, when the storage battery is short-circuited, leaks and the like to cause thermal runaway, the fire potential can be expanded to be uncontrollable within 5 to 10 seconds, when maintenance workers or inspection workers and other personnel exist in a direct current system, when fire protection operation is carried out, escape of personnel needs to be preferentially guaranteed, the escape time of the personnel and the fire protection and rescue time of fire hazard become a spear shield body, when the fire protection system is started, the direction and the path of the indoor personnel cannot be identified due to the fact that fire smoke, fire protection powder or gas exists, and therefore the escape of the personnel becomes abnormally difficult.
Disclosure of Invention
The invention aims to provide a transformer substation direct-current fire escape method based on a lithium iron phosphate storage battery, which can be used for rapidly organizing internal personnel to escape when a fire disaster occurs or fire fighting operation is carried out.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a transformer substation direct-current fire escape method based on a lithium iron phosphate storage battery is characterized in that a direct-current system comprises a power supply direct-current bus KM & lt- & gt, the power supply direct-current bus KM & lt- & gt is connected with a direct-current charging screen CHC, a lithium iron phosphate storage battery screen BAT and a direct-current feed screen DISC, the direct-current charging screen CHC and the direct-current feed screen DISC are placed in a direct-current load chamber, the lithium iron phosphate storage battery screen BAT is placed in a storage battery chamber, a partition wall is arranged between the direct-current load chamber and the storage battery chamber, the power supply direct-current bus KM & lt- & gt penetrates through the partition wall to connect screens on two sides, a system partition door is arranged on the partition wall, a direct-current system access door is arranged on the direct-current load chamber or the storage battery chamber, and a mechanical door closer and a door body magnetic attraction device are arranged on the system partition door and the direct-current system access door, laser lamp belts are arranged on two sides of the ground of an opening and closing channel of a system partition door and a direct current system entrance door, laser transmitters distributed at intervals are arranged on the laser lamp belts and can emit upward laser, a plurality of spaced escape guidance belts are arranged between the two laser lamp belts, an escape direction light belt is arranged on the escape guidance belts, an escape control cabinet is arranged in a direct current load chamber and is in communication connection with a fire-fighting controller on a lithium iron phosphate storage battery panel BAT, the escape control cabinet controls the starting and stopping of the laser transmitters, the escape direction light belt and a door body magnetic attraction device, an outdoor escape completion confirmation key is arranged outside the direct current system entrance door, and the outdoor escape completion confirmation key is electrically connected with the escape control cabinet;
the upper ends of the inner side walls of the direct-current load chamber and the storage battery chamber in the vertical direction are provided with escape detection and guidance devices, the escape detection and guidance devices can rotate at least two shafts, life detectors and laser guidance generators are arranged on the escape detection and guidance devices, the directions of the life detectors and the laser guidance generators are consistent, and the escape detection and guidance devices are controlled by an escape control cabinet;
an indoor escape broadcaster is arranged in the direct current load chamber or the storage battery chamber, an outdoor escape finishing broadcaster is arranged outside an entrance of the direct current system entering the door, and the indoor escape broadcaster and the outdoor escape finishing broadcaster are controlled by an escape control cabinet;
the escape method specifically comprises the following steps:
the method comprises the steps that firstly, a system is initialized, and initial parameters of a person escape guidance controller are set, wherein the initial parameters comprise size parameters of a direct current load chamber and a storage battery chamber, position information of a laser lamp strip, a scanning path of an escape detection and guidance device, induction sensitivity of a life detector, laser intensity of a laser guidance generator and size information of a light beam;
step two, the fire-fighting controller detects the state in a lithium iron phosphate storage battery panel BAT, and when one or more lithium iron phosphate storage batteries are detected to be out of control due to heat, an alarm signal is sent to the personnel escape guidance controller, and the personnel escape guidance controller starts a fire-fighting escape program;
step three, the personnel escape guidance controller controls all the laser transmitters, the escape direction light band, the indoor escape broadcaster and the outdoor escape finishing broadcaster to be in working states;
step four, controlling a rotating shaft of the escape detection and guidance device through a driver to carry out scanning detection on the direct current load chamber and the storage battery chamber according to a set personnel detection scanning path, and detecting whether a person exists in the chambers through a life detector;
step five, when the escape detection and guidance device detects that people exist in the direct current load chamber or/and the storage battery chamber, stopping scanning, controlling the laser guidance generator to emit laser light beams to irradiate the human body, and moving the laser light beams to the laser lamp strip according to the shortest path;
moving the indoor personnel along with the laser light beams emitted by the laser guide generator until the indoor personnel enter the two laser light bands, and then escaping according to the direction marked by the escaping direction light bands;
and step seven, counting the escape personnel after the indoor personnel escape from the room, pressing an outdoor escape completion confirmation button when confirming that all the escape personnel escape, controlling the door body magnetic attraction device to work by the personnel escape guidance controller, and locking the system compartment door and the direct current system entering door to prevent the fire from spreading.
The back surfaces of the direct current feed screen DISC, the direct current charging screen CHC and the direct current feed screen DISC are arranged close to a wall, and the escape detection and guidance device is prevented from being arranged at 1/2 of the distance between the edge of a cabinet body of a direct current system and the edge of the laser lamp strip closest to the cabinet body.
The scanning range M of the escape detection and guidance device in the fourth step is rectangular, the length of the rectangle is the length of a room where the escape detection and guidance device is located, one end of the width where the escape detection and guidance device is located is based on the outer edge of the screen cabinet, the distance between the other end of the width and the nearest laser lamp strip is D, and D is a distance boundary value where the laser lamp post can be seen under smoke with maximum concentration.
The personnel detection scanning path of the escape detection and guidance device in the fourth step is as follows:
defining the range of the smallest square area occupied by a human body as K, wherein the length of the side of the K is L, dividing a rectangle of a scanning range M into a plurality of adjacent square areas K, dividing the part of the scanning range M which cannot be completely covered by the square areas K into two sides of the area formed by the K in equal length and equal width, starting a scanning path from one corner far away from an escape exit, scanning along the length after the starting point position is in the range of L multiplied by L at a variable angle point, returning along the length to scan after reaching the side line of the last square area K and approaching the laser lamp strip in the width direction for L distance, and repeating the steps until reaching the square area K of the laser lamp strip close to the escape exit;
if the rectangle in the scanning range M can be completely divided by the square area K, starting from the center of the square area K with the scanning starting point far away from one corner of the laser lamp strip, and making a straight S-shaped route along the adjacent square area K until the square area K of the laser lamp strip reaches the escape exit;
the alignment point of the escape detection and guidance device is at the starting point of the scanning path at ordinary times.
And in the sixth step, whether the escape direction of the personnel is correct or not is judged according to the sequence of human body time sensed by the escape guide belt on which the human body sensor searches, and if not, the indoor escape broadcaster is controlled to remind.
The direct current load chamber and the wall body at the top of the storage battery chamber are provided with emergency illuminating lamps, and the emergency illuminating lamps are electrically connected with the escape control cabinet.
Foretell escape control cabinet is equipped with personnel and flees and guide the controller, personnel flee and guide the controller and be connected with the driver communication, the driver is to the rotation of axle of detection and director of fleing, life detection and laser emission control, personnel flee and guide the output and the laser emitter of controller, the direction light area of fleing, the device is inhaled to door body magnetism, indoor broadcast ware of fleing, outdoor flee and accomplish broadcast broadcaster and emergency lighting lamp electricity and be connected, personnel flee and guide the input of controller and flee outdoors and accomplish and confirm the keying electricity and be connected, personnel flee and guide the controller and be connected with the fire control ware communication.
The escape detection and guidance device is provided with two rotating shafts, and the structure is as follows:
the base is fixedly connected with the wall body, a first rotating shaft is arranged on the base and fixedly connected with the connecting column, a second rotating shaft which is rotatably connected with the connecting column is arranged on the connecting column, the second rotating shaft is fixedly connected with the ball body, and a life detector and a laser guide generator are arranged on the ball body.
Foretell switch board of fleing is placed and is keeping away from direct current charging screen CHC and direct current feed screen DISC one side, and personnel flee and guide controller, laser emitter, the direction light band of fleing, human inductor, outdoor flee and accomplish the broadcast ware, outdoor flee and accomplish confirm the button, indoor flee broadcast ware, flee and detect and guide ware, emergency lighting lamp and door body magnetism device are supplied power by uninterrupted power supply UPS alone.
The personnel escape guidance controller is in communication connection with the escape man-machine interaction screen.
According to the transformer substation direct-current fire escape method based on the lithium iron phosphate storage battery, the communication linkage of the fire-fighting controller and the personnel escape guidance controller is utilized, so that when the storage battery chamber is in a fire situation to start fire fighting, personnel can be rapidly detected, positioned and guided for escape, the sufficient escape time is fully shortened, and a good fire fighting effect can be provided.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
fig. 1 is a first plan view (front view) of a dc system;
FIG. 2 is a schematic plan view (top view) of a DC system;
FIG. 3 is an enlarged partial schematic view of FIG. 2;
fig. 4 is a schematic plan view of a lithium iron phosphate battery panel BAT;
FIG. 5 is a schematic diagram of the electrical principle of the battery module;
FIG. 6 is a schematic view of an escape detection and guidance device;
FIG. 7 is an electrical schematic diagram of the escape control cabinet;
FIG. 8 is a plan view of a preferred DC system illustrating a second (top view);
FIG. 9 shows a first escape detection and guidance device scanning path;
FIG. 10 shows a second escape detection and indexer scan path.
In the figure: the system comprises a direct current load chamber 1, a storage battery chamber 2, a partition wall 3, a fire-fighting controller 4, a storage battery communication management machine 5, a storage battery screen man-machine interaction screen 6, a temperature detector 7, an entrance guard management server 8, an entrance guard communication server 9, an intelligent key 10, a key adapter 11, an intelligent entrance guard lock 12, a personnel escape guidance controller 13, a system partition 14, a direct current system entrance door 15, a laser lamp strip 16, a laser emitter 161, an escape guidance strip 17, an escape direction light strip 171, an outdoor escape completion broadcaster 18, an outdoor escape completion confirmation button 19, an indoor escape broadcaster 20, an escape detection and guidance device 21, a base 211, a first revolving shaft 212, a connecting column 213, a second revolving shaft 214, a sphere 215, a life detector 216, a laser guidance generator 217, a fire-fighting device 22, a driver 23, an escape man-machine interaction screen 24, an emergency illuminating lamp 25, an escape control cabinet 26 and a door body device 27.
Detailed Description
As shown in fig. 1-10, a direct current fire escape method for a transformer substation based on a lithium iron phosphate storage battery includes that a direct current system includes a power supply direct current bus KM +, KM-, the power supply direct current bus KM +, KM-is connected with a direct current charging screen CHC, a lithium iron phosphate storage battery screen BAT and a direct current feed screen DISC, the direct current charging screen CHC and the direct current feed screen DISC are placed in a direct current load chamber 1, the lithium iron phosphate storage battery screen BAT is placed in a storage battery chamber 2, a partition wall 3 is arranged between the direct current load chamber 1 and the storage battery chamber 2, the power supply direct current bus KM +, KM-passes through the partition wall 3 to connect the screens at the two sides, a system partition door 14 is arranged on the partition wall 3, a direct current system entrance door 15 is arranged on the direct current load chamber 1 or the storage battery chamber 2, a mechanical door closer and a door magnetic attraction device 27 are arranged on the system partition door 14 and the direct current system entrance door 15, laser light belts 16 are arranged on two sides of the ground of an opening and closing channel of a system partition door 14 and a direct current system entrance door 15, laser emitters 161 distributed at intervals are arranged on the laser light belts 16 and can emit upward laser, a plurality of spaced escape guidance belts 17 are arranged between the two laser light belts 16, escape direction light belts 171 are arranged on the escape guidance belts 17, an escape control cabinet 26 is arranged in a direct current load chamber 1, the escape control cabinet 26 is in communication connection with a fire controller 4 on a lithium iron phosphate storage battery panel BAT, the escape control cabinet 26 controls the laser emitters 161, the escape direction light belts 171 and a door body magnetic attraction device 27 to start and stop, an outdoor escape completion confirmation key 19 is arranged outside the direct current system entrance door 15, and the outdoor escape completion confirmation key 19 is electrically connected with the escape control cabinet 26.
The system partition door 14 and the direct current system entrance door 15 are made of fireproof materials, a mechanical door closer on the mechanical door closer can automatically close two doors, and plays a role of physical isolation when a fire disaster occurs, so as to prevent the fire from spreading, but in consideration of personnel escape, the mechanical door closer does not lock the doors, and the doors can still be opened by manpower, under the condition that the fire disaster occurs or a fire system is started, the fire controller 4 sends a fire signal or a fire starting signal to the escape control cabinet 26, the escape control cabinet 26 controls the laser emitter 161 and the escape direction light band 171 to be started, laser can form a light column, an escape passage where the doors are located can be identified, and the escape control cabinet 26 controls the door body device 27 to hold the two doors by the strong penetrability of laser, particularly, the light column phenomenon of the laser in light smoke at the initial stage of the fire disaster is more obvious, the passage can be identified well, the escape direction light band 171 can guide the personnel in the escape direction in smoke, and after the personnel escape from the outdoor escape and press the outdoor escape completion confirmation button 19, the door body can be opened to prevent the direct current load caused by the overlarge magnetic attraction of the fire.
The upper ends of the vertical directions of the inner side walls of the direct current load chamber 1 and the storage battery chamber 2 are provided with escape detection and guidance devices 21, the escape detection and guidance devices 21 can rotate at least two shafts, the escape detection and guidance devices 21 are provided with life detectors 216 and laser guidance generators 217, the directions of the life detectors 216 and the laser guidance generators 217 are consistent, and the escape detection and guidance devices 21 are controlled by an escape control cabinet 26.
When fire control controller 4 sends out the conflagration emergence or the fire control starts, life detection appearance 216 on the detection and director of fleing 21 scans through multiaxis rotational positioning in direct current load room 1 and the battery room 2 fast and detects, whether someone exists in the check room, if detect someone, laser guide generator 217 sends laser light column and shines the human body, laser light column moves to the escape route department in two laser lamp areas 16 with the shortest distance from the human body position, the people flee and guide, it is wrong to prevent that indoor personnel from taking place to escape when disorderly because of smog.
An indoor escape broadcasting device 20 is arranged in the direct current load room 1 or the storage battery room 2, an outdoor escape completion broadcasting device 18 is arranged outside an entrance of the direct current system entrance door 15, and the indoor escape broadcasting device 20 and the outdoor escape completion broadcasting device 18 are controlled by an escape control cabinet 26.
When fire fighting is started, the indoor escape broadcaster 20 is started indoors to broadcast escape methods and escape cautions, people are guided to escape according to the guidance of laser, the outdoor escape completion broadcaster 18 broadcasts to people who have escaped outdoors to remind people to check whether all people have escaped, and if yes, the outdoor escape completion confirmation key 19 is pressed down to lock the door body.
The escape method specifically comprises the following steps:
step one, initializing a system, and setting initial parameters of a person escape guidance controller 13, wherein the initial parameters comprise size parameters of a direct current load chamber 1 and a storage battery chamber 2, position information of a laser lamp strip 16, a scanning path of an escape detection and guidance device 21, induction sensitivity of a life detector 216, laser intensity of a laser guidance generator 217 and light beam size information;
secondly, the fire-fighting controller 4 detects the state in the lithium iron phosphate storage battery panel BAT, when one or more lithium iron phosphate storage batteries are detected to be out of thermal control, an alarm signal is sent to the personnel escape guidance controller 13, and the personnel escape guidance controller 13 starts a fire-fighting escape program;
step three, the personnel escape guidance controller 13 controls all the laser transmitters 161, the escape direction light band 171, the indoor escape broadcaster 20 and the outdoor escape completion broadcaster 18 to be in a working state;
step four, controlling a rotating shaft of the escape detection and guidance device 21 through a driver 23, scanning and detecting the interior of the direct current load room 1 and the interior of the storage battery room 2 according to a set personnel detection scanning path, and detecting whether people exist in the room through a life detector 216;
step five, when the escape detection and guidance device 21 detects that people exist in the direct current load room 1 or/and the storage battery room 2, stopping scanning, controlling the laser guidance generator 217 to emit laser light beams to irradiate the human body, and moving the laser light beams to the laser light strip 16 according to the shortest path;
step six, indoor personnel move along the laser light beam emitted by the laser guide generator 217 until entering the two laser light strips 16, and then escape according to the direction marked by the escape direction light strip 171;
and step seven, after indoor personnel escape from the room, checking the escape personnel, when the personnel are confirmed to completely escape, pressing down an outdoor escape completion confirmation button 19, controlling the door body magnetic suction device 27 to work by the personnel escape guidance controller 13, and locking the system partition door 14 and the direct current system entrance door 15 to prevent the fire from spreading.
The back surfaces of the direct current feed screen DISC, the direct current charging screen CHC and the direct current feed screen DISC are arranged close to the wall, and the escape detection and guidance device 21 is prevented from being arranged at 1/2 of the distance between the edge of the cabinet body of the direct current system and the edge of the laser lamp strip 16 closest to the cabinet body.
Through the placement of the screen cabinet, the area where the personnel are located is fixed, and the escape detection and guidance device 21 is arranged at 1/2 position between the edge of the cabinet body and the laser lamp strip 16, so that the scanning search area of the life detector 216 is minimized, and the position of the personnel in the room can be detected in the shortest time.
In the fourth step, the scanning range M of the escape detection and guidance device 21 is rectangular, the length of the rectangle is the length of the room, one end of the width of the rectangle is based on the outer edge of the cabinet, the distance between the other end of the rectangle and the nearest laser lamp strip 16 is D, and D is the boundary value of the distance for seeing the laser lamp post under the smoke with the maximum concentration.
The personnel detection scanning path of the escape detection and guidance device 21 in the fourth step is as follows:
as shown in fig. 10, a range where a square area occupied by a human body is the smallest is defined as K, the length of the side of K is L, a rectangle of a scanning range M is divided into a plurality of adjacent square areas K, a part of the scanning range M, which is not completely covered by the shape of the square areas K, is arranged on both sides of the area formed by K in equal-length and equal-width rows, a scanning path starts from a corner far away from an escape exit, the starting point is positioned in a variable-angle point L × L range, scanning is performed along the length, the scanning path returns along the length after reaching the side line of the last square area K and moving to the laser lamp strip 16 in the width direction for L distance, and the scanning is repeated until reaching the square area K of the laser lamp strip 16 near the escape exit;
as shown in fig. 9, if the rectangle of the scanning range M can be completely divided by the square area K, the scanning starting point is far from the center of the square area K at one corner of the laser light strip 16, and a straight "S" shaped route is made along the adjacent square area K until reaching the square area K of the laser light strip 16 at the exit of the escape;
the alignment point of the escape detection and guidance device 21 is at the beginning of the scanning path at normal times.
The escape detection and guidance device comprises a scanning path, a servo motor, an escape detection and guidance device 21, a servo motor, a laser, a safety position and a guidance mode, wherein the scanning path is used for scanning, the escape detection and guidance device does not leak any range, the most convenient path is used for scanning, a shaft of the escape detection and guidance device 21 is controlled by the servo motor at ordinary times, the whole path can be quickly scanned in 1S, when a human body is scanned, the escape detection and guidance device enters the guidance mode, if a person does not travel according to the guidance route, the person follows the human body, and the laser is continuously used for quickly swinging to the safety position repeatedly to indicate that the person needs to follow.
And in the sixth step, whether the escape direction of the personnel is correct is judged according to the time sequence of the human body sensed by the human body sensors on the escape guide belt 17 in the search, and if not, the indoor escape broadcaster 20 is controlled to remind.
The escape guidance belt 17 is further provided with a human body sensor, and the human body sensor is connected with an escape control cabinet 26.
Whether the escape direction of the indoor personnel is correct or not is automatically judged by the sequence of the human body passing through the escape guidance belt 17 through the human body inductor, and the indoor escape broadcaster 20 is used for reminding.
And emergency illuminating lamps 25 are arranged on the top wall bodies of the direct current load chamber 1 and the storage battery chamber 2, and the emergency illuminating lamps 25 are electrically connected with an escape control cabinet 26.
Be equipped with personnel in foretell escape control cabinet 26 and flee and guide controller 13, personnel flee and guide controller 13 and driver 23 communication connection, driver 23 is to the rotation of the axle of detection and director 21 of fleing, life detection and laser emission control, personnel flee and guide controller 13's output and laser emitter 161, escape direction light area 171, door body magnetism device 27, indoor broadcast ware 20 of fleing, outdoor flee and accomplish broadcaster 18 and emergency lighting lamp 25 electricity and be connected, personnel flee and guide controller 13's input and outdoor flee and accomplish confirm that button 19 is electric to be connected, personnel flee and guide controller 13 and fire control controller 4 communication connection.
The escape detection and guidance device 21 has two rotating shafts, and the structure thereof is as follows:
the base 211 is fixedly connected with a wall body, a first rotating shaft 212 is arranged on the base 211, the first rotating shaft 212 is fixedly connected with a connecting column 213, a second rotating shaft 214 which is rotatably connected is arranged on the connecting column 213, the second rotating shaft 214 is fixedly connected with a ball 215, and a life detector 216 and a laser guide generator 217 are arranged on the ball 215.
The escape control cabinet 26 is placed at one side far away from the direct current charging screen CHC and the direct current feed screen DISC, and the personnel escape guidance controller 13, the laser emitter 161, the escape direction light band 171, the human body sensor, the outdoor escape completion broadcaster 18, the outdoor escape completion confirmation button 19, the indoor escape broadcaster 20, the escape detection and guidance device 21, the emergency lighting lamp 25 and the door magnetic attraction device 27 are independently powered by the uninterruptible power supply UPS.
The independent power supply of the escape equipment and the UPS can still work normally to guide people to escape under the condition that the whole direct current system is broken down.
The person escape guidance controller 13 is in communication connection with the escape man-machine interaction screen 24.
The escape parameters can be set through the escape man-machine interaction screen 24.
Claims (9)
1. A transformer substation direct-current fire escape method based on a lithium iron phosphate storage battery is characterized by comprising the following specific steps of:
the method comprises the steps that firstly, a system is initialized, and initial parameters of a person escape guidance controller (13) are set, wherein the initial parameters comprise size parameters of a direct current load chamber (1) and a storage battery chamber (2), position information of a laser lamp strip (16), a scanning path of an escape detection and guidance device (21), induction sensitivity of a life detector (216), laser intensity of a laser guidance generator (217) and size information of a light column;
secondly, the fire-fighting controller (4) detects the state in a lithium iron phosphate storage battery panel BAT, when one or more lithium iron phosphate storage batteries are detected to be out of thermal control, an alarm signal is sent to the personnel escape guidance controller (13), and the personnel escape guidance controller (13) starts a fire-fighting escape program;
thirdly, the personnel escape guidance controller (13) controls all the laser transmitters (161), the escape direction light band (171), the indoor escape broadcaster (20) and the outdoor escape completion broadcaster (18) to be in working states;
fourthly, controlling a rotating shaft of the escape detection and guidance device (21) through a driver (23) to carry out scanning detection on the direct current load room (1) and the storage battery room (2) according to a set personnel detection scanning path, and detecting whether people exist in the rooms through a life detector (216);
step five, when the escape detection and guidance device (21) detects that people exist in the direct current load room (1) or/and the storage battery room (2), stopping scanning, controlling the laser guidance generator (217) to emit laser light beams to irradiate the human body, and moving the laser light beams to the laser light band (16) according to the shortest path;
sixthly, indoor personnel move along with the laser light beams emitted by the laser guide generator (217) until entering the two laser light strips (16), and then escape according to the direction marked by the escape direction light strip (171);
step seven, counting the escape personnel after the indoor personnel escape from the room, pressing an outdoor escape completion confirmation button (19) when confirming that all the escape personnel escape, controlling a door body magnetic suction device (27) to work by a personnel escape guidance controller (13), locking a system partition door (14) and a direct current system entrance door (15), and preventing the fire from spreading;
the direct current system comprises power supply direct current buses KM and KM-, the power supply direct current buses KM and KM-are connected with a direct current charging screen CHC, a lithium iron phosphate storage battery screen BAT and a direct current feed screen DISC, the direct current charging screen CHC and the direct current feed screen DISC are placed in a direct current load chamber (1), the lithium iron phosphate storage battery screen BAT is placed in a storage battery chamber (2), a partition wall (3) is arranged between the direct current load chamber (1) and the storage battery chamber (2), the power supply direct current buses KM and KM-penetrate through the partition wall (3) to connect screens on two sides, a system partition door (14) is arranged on the partition wall (3), a direct current system entrance door (15) is arranged on the direct current load chamber (1) or the storage battery chamber (2), a mechanical escape device and a door body device (27) are arranged on the system partition door (14) and the direct current system entrance door (15), a laser escape device and a door body control device (27) are arranged on an open-close passage of the system partition door (14) and the direct current system entrance door (15), a laser escape door control device (17) is arranged in a laser escape cabinet, a laser escape control device (17) which is arranged between the laser escape cabinet and a laser escape door control emitter (17) which is arranged on the laser escape cabinet, the escape control cabinet (26) controls the starting and stopping of the laser emitter (161), the escape direction light band (171) and the door body magnetic attraction device (27), an outdoor escape completion confirmation key (19) is arranged outside the direct current system entrance door (15), and the outdoor escape completion confirmation key (19) is electrically connected with the escape control cabinet (26);
the upper ends of the inner side walls of the direct current load chamber (1) and the storage battery chamber (2) in the vertical direction are provided with escape detection and guidance devices (21), the escape detection and guidance devices (21) are provided with two rotating shafts, life detectors (216) and laser guidance generators (217) are arranged on the escape detection and guidance devices (21), the directions of the life detectors (216) and the laser guidance generators (217) are consistent, and the escape detection and guidance devices (21) are controlled by an escape control cabinet (26);
an indoor escape broadcaster (20) is arranged in the direct current load chamber (1) or the storage battery chamber (2), an outdoor escape finishing broadcaster (18) is arranged outside an entrance of the direct current system entrance door (15), and the indoor escape broadcaster (20) and the outdoor escape finishing broadcaster (18) are controlled by an escape control cabinet (26);
the escape control cabinet (26) is internally provided with a person escape guide controller (13), the person escape guide controller (13) is in communication connection with a driver (23), and the driver (23) controls the shaft rotation, life detection and laser emission of the escape detection and guide device (21).
2. The substation direct-current fire escape method based on the lithium iron phosphate storage battery according to claim 1, wherein the back surfaces of the direct-current feed screen DISC, the direct-current charging screen CHC and the direct-current feed screen DISC are arranged against a wall, and the escape detection and guidance device (21) is prevented from being positioned at 1/2 of the distance between the edge of a cabinet body of a direct-current system and the edge of a closest laser lamp strip (16).
3. The transformer substation direct-current fire escape method based on the lithium iron phosphate storage battery is characterized in that in the fourth step, the scanning range M of the escape detection and guidance device (21) is rectangular, the length of the rectangle is the length of a room, one end of the width of the rectangle is based on the outer edge of a screen cabinet, the distance between the other end of the rectangle and the nearest laser lamp strip (16) is D, and D is the boundary value of the distance of the laser lamp column which can be seen under smoke with the maximum concentration.
4. The substation direct-current fire escape method based on the lithium iron phosphate storage battery as claimed in claim 3, wherein the personnel detection scanning path of the escape detection and guidance device (21) in the fourth step is as follows:
defining the minimum range of the square area occupied by a human body as K, wherein the side length of K is L, dividing a rectangle of a scanning range M into a plurality of adjacent square areas K, dividing the part of the scanning range M which cannot be completely covered by the square areas K into equal-length equal-width scanning parts on two sides of the area formed by K, starting from one corner far away from an escape exit, scanning along the length after the starting point position is in the range of L multiplied by L at a variable angle point, returning along the length for scanning after reaching the side line of the last square area K and moving to the laser lamp strip (16) along the width direction for the distance L, and repeating the steps until reaching the square area K of the laser lamp strip (16) close to the escape exit;
if the rectangle in the scanning range M can be completely divided by the square area K, starting from the center of the square area K with the scanning starting point far away from one corner of the laser lamp strip (16), and making a straight S-shaped route along the adjacent square area K until the square area K of the laser lamp strip (16) at the escape exit is reached;
the alignment point of the escape detection and guidance device (21) is at the starting point of the scanning path at ordinary times.
5. The transformer substation direct-current fire escape method based on the lithium iron phosphate storage battery is characterized in that a human body sensor is further arranged on the escape guidance belt (17) and connected with the escape control cabinet (26), in the sixth step, whether the escape direction of people is correct or not is judged according to the sequence of human body time sensed by the human body sensor on the escape guidance belt (17) in search, and if not, an indoor escape broadcaster (20) is controlled to remind.
6. The substation direct-current fire escape method based on the lithium iron phosphate storage battery is characterized in that emergency illuminating lamps (25) are arranged on top wall bodies of the direct-current load chamber (1) and the storage battery chamber (2), and the emergency illuminating lamps (25) are electrically connected with an escape control cabinet (26).
7. The substation direct-current fire escape method based on the lithium iron phosphate storage battery as claimed in claim 6, wherein the escape detection and guidance device (21) has two rotating shafts, and the structure thereof is as follows:
the base (211) is fixedly connected with a wall body, a first rotating shaft (212) is arranged on the base (211), the first rotating shaft (212) is fixedly connected with a connecting column (213), a second rotating shaft (214) which is rotatably connected is arranged on the connecting column (213), the second rotating shaft (214) is fixedly connected with a ball body (215), and a life detector (216) and a laser guide generator (217) are arranged on the ball body (215).
8. The transformer substation direct-current fire escape method based on the lithium iron phosphate storage battery is characterized in that the escape control cabinet (26) is placed at one side far away from the direct-current charging screen CHC and the direct-current feeding screen DISC, and the personnel escape guidance controller (13), the laser transmitter (161), the escape direction light band (171), the human body sensor, the outdoor escape completion broadcaster (18), the outdoor escape completion confirmation key (19), the indoor escape broadcaster (20), the escape detection and guidance device (21), the emergency lighting lamp (25) and the door magnetic attraction device (27) are independently powered by the uninterruptible power supply UPS.
9. The substation direct-current fire escape method based on the lithium iron phosphate storage battery as claimed in claim 8, wherein the personnel escape guidance controller (13) is in communication connection with an escape man-machine interaction screen (24).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210521200.6A CN114887257B (en) | 2022-05-13 | 2022-05-13 | Transformer substation direct-current fire escape method based on lithium iron phosphate storage battery |
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| CN202210521200.6A CN114887257B (en) | 2022-05-13 | 2022-05-13 | Transformer substation direct-current fire escape method based on lithium iron phosphate storage battery |
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| CN114887257B true CN114887257B (en) | 2022-12-09 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201230148Y (en) * | 2008-07-22 | 2009-04-29 | 夏曙光 | Ground buried type transforming station having escape duct |
| CN201791279U (en) * | 2010-05-13 | 2011-04-13 | 付少华 | Laser-guided emergency evacuation device |
| CN112891768A (en) * | 2021-02-17 | 2021-06-04 | 宁夏安之信工程设计有限公司 | Monitoring and emergency fire extinguishing system based on Internet of things |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090066522A1 (en) * | 2007-09-11 | 2009-03-12 | Il- Won Tech Co., Ltd | Emergency guidance lamp system for guiding to nearest exit in the event of fire |
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2022
- 2022-05-13 CN CN202210521200.6A patent/CN114887257B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201230148Y (en) * | 2008-07-22 | 2009-04-29 | 夏曙光 | Ground buried type transforming station having escape duct |
| CN201791279U (en) * | 2010-05-13 | 2011-04-13 | 付少华 | Laser-guided emergency evacuation device |
| CN112891768A (en) * | 2021-02-17 | 2021-06-04 | 宁夏安之信工程设计有限公司 | Monitoring and emergency fire extinguishing system based on Internet of things |
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