CN116637316A - Electrochemical energy storage station battery cabinet fire control system - Google Patents
Electrochemical energy storage station battery cabinet fire control system Download PDFInfo
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- CN116637316A CN116637316A CN202310642314.0A CN202310642314A CN116637316A CN 116637316 A CN116637316 A CN 116637316A CN 202310642314 A CN202310642314 A CN 202310642314A CN 116637316 A CN116637316 A CN 116637316A
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- Prior art keywords
- carbon dioxide
- sub
- battery
- battery compartment
- controller
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Links
- 238000012983 electrochemical energy storage Methods 0.000 title claims abstract description 38
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 252
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 126
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 126
- 239000000779 smoke Substances 0.000 claims abstract description 66
- 238000002347 injection Methods 0.000 claims abstract description 61
- 239000007924 injection Substances 0.000 claims abstract description 61
- 239000000523 sample Substances 0.000 claims abstract description 38
- 238000005507 spraying Methods 0.000 claims description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 238000001931 thermography Methods 0.000 claims description 18
- 239000007921 spray Substances 0.000 claims description 17
- 239000011521 glass Substances 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 10
- 230000006698 induction Effects 0.000 claims description 8
- 230000005856 abnormality Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 abstract description 11
- 238000012544 monitoring process Methods 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 89
- 230000001276 controlling effect Effects 0.000 description 15
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 208000001034 Frostbite Diseases 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000002144 chemical decomposition reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- UKACHOXRXFQJFN-UHFFFAOYSA-N heptafluoropropane Chemical compound FC(F)C(F)(F)C(F)(F)F UKACHOXRXFQJFN-UHFFFAOYSA-N 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/005—Delivery of fire-extinguishing material using nozzles
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
- A62C37/10—Releasing means, e.g. electrically released
- A62C37/11—Releasing means, e.g. electrically released heat-sensitive
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
- A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
-
- 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
Abstract
The invention discloses a fire control system of a battery cabinet of an electrochemical energy storage station, and relates to the technical field of fire safety. The fire control system of the battery cabinet of the electrochemical energy storage station divides the battery cabinet into a plurality of independent sub-battery cabins, avoids the problem that all battery modules are damaged due to ignition of one battery module caused by stacking all battery modules in the same space, judges that combustible gas exists in the sub-battery cabins through a plurality of combustible gas sensor modules, judges that smoke exists in the sub-battery cabins through a plurality of smoke sensing probes, avoids the problem of false alarm, sends out abnormal gas alarm when judging that the combustible gas exists in the sub-battery cabins, controls the carbon dioxide injection device to inject carbon dioxide gas of a first preset quantity when judging that the smoke exists in the battery cabins, and controls the carbon dioxide injection device to inject carbon dioxide gas of a second preset quantity when detecting short circuit signals exceeding a fourth number of temperature sensing cables, thereby realizing hierarchical abnormal state monitoring and fire control of the battery cabins.
Description
Technical Field
The invention relates to the technical field of fire safety, in particular to a fire control system of a battery cabinet of an electrochemical energy storage station.
Background
Along with the development of an electric power system, the scale of an electrochemical energy storage station is larger and larger, the safe and reliable operation of a battery compartment in the station is more important, particularly, in the electrochemical energy storage station in an unattended remote area, the combustible gas decomposed by a battery fault threatens the safe and reliable operation of the whole energy storage station, explosion can occur in severe cases, the life and property safety of surrounding residents is threatened, and the development of the energy storage substation is restricted.
The battery compartment of the electrochemical energy storage station is integrated with a large number of storage batteries, and fire accidents are easy to occur due to temperature rise when the storage batteries run, so that a fire extinguishing device is generally configured for the battery compartment, whether the battery compartment is in fire or not is detected in time, and heptafluoropropane gas is sprayed out to extinguish fire when the fire is detected. But the fire control logic of the existing battery compartment fire extinguishing device is simple, and can generate an alarm as long as smoke is detected by the smoke sensing probe and control the sprayed fire extinguishing gas, so that the fire extinguishing gas is easily sprayed by mistake due to the false alarm of the smoke sensing probe, and the control mode is not flexible enough, so that the layering abnormal state monitoring and fire control of the battery compartment can not be realized.
Disclosure of Invention
The invention provides a fire control system for a battery cabinet of an electrochemical energy storage station, which is used for solving the technical problems that the existing fire control logic of the battery compartment of the electrochemical energy storage station is simple, the fire extinguishing gas is easily sprayed by mistake due to false alarm of a smoke sensing probe, and the control mode is not flexible enough, and the hierarchical abnormal state monitoring and fire control of the battery compartment cannot be realized.
In view of the above, the invention provides a fire control system of a battery cabinet of an electrochemical energy storage station, which comprises a battery cabinet, a combustible gas sensor module, a smoke sensing probe, a temperature sensing cable, a carbon dioxide injection device and a controller;
the battery cabinet comprises more than two sub-battery cabins, and the more than two sub-battery cabins are arranged side by side and are isolated from each other;
a first number of combustible gas sensor modules, a second number of smoke sensing probes, a third number of temperature sensing cables and a carbon dioxide injection device are arranged in each sub-battery cabin, and the first number, the second number and the third number are all larger than 1;
all the combustible gas sensor modules, the smoke sensing probe, the temperature sensing cable and the carbon dioxide injection device are connected with the controller;
the combustible gas sensor module, the smoke sensing probe and the carbon dioxide spraying device are respectively arranged on the inner side wall of the sub-battery compartment;
the temperature sensing cable is arranged at the inner top of the sub-battery compartment;
the controller is used for:
when any flammable gas sensor module is monitored to detect flammable gas, judging whether all the flammable gas sensor modules detect the flammable gas within a first preset time period, if so, judging that the flammable gas exists in the sub-battery compartment, and giving out a gas abnormality alarm;
when any smoke sensing probe detects smoke in the sub-battery compartment, judging whether all the smoke sensing probes detect the smoke in the sub-battery compartment within a second preset time period, if so, judging that the smoke in the sub-battery compartment exists, and controlling a carbon dioxide injection device to inject a first preset amount of carbon dioxide;
and when the short-circuit signals exceeding the fourth number of temperature sensing cables are detected, controlling the carbon dioxide injection device to inject the second preset amount of carbon dioxide, wherein the fourth number is smaller than the third number.
Optionally, a temperature sensor is also included;
the temperature sensor is arranged on the inner side wall of the sub-battery compartment;
the temperature sensor is connected with the controller;
the controller is further configured to:
and when the temperature detected by the temperature sensor is greater than a first threshold value and the smoke in the sub battery compartment is judged to be smokeless, a high-temperature alarm is sent out.
Optionally, the controller is further configured to:
when the controller monitors that the temperature detected by the temperature sensor is greater than a second threshold value and monitors the short-circuit signals of a fifth number of temperature sensing cables, the controller controls the carbon dioxide injection device to inject all carbon dioxide, wherein the fifth number is greater than the fourth number but not greater than the third number, and the second threshold value is greater than the first threshold value.
Optionally, the third number is less than 10;
when the controller monitors short-circuit signals of less than the fifth number of temperature sensing cables, the calculation formula of the second preset quantity is as follows:
D 2 ＝A 4 ×10％×D
wherein D is 2 For a second preset amount A 4 D is the total carbon dioxide gas amount for the fourth amount.
Optionally, the human body induction module is also included;
the human body induction module is arranged on a cabin door of the sub-battery cabin;
the human body induction module is connected with the controller;
the controller is further configured to:
before controlling the carbon dioxide injection device to inject all carbon dioxide gas, starting a first time countdown, judging whether the human body induction module induces personnel information or not in the first time countdown, if so, extending the first time countdown to a second time countdown, sending out a voice alarm to remind personnel to evacuate the scene, controlling the carbon dioxide injection device to inject all carbon dioxide gas according to a first injection speed when the second time countdown is finished, and if not, controlling the carbon dioxide injection device to inject all carbon dioxide gas according to a second injection speed when the first time countdown is finished, wherein the first injection speed is lower than the second injection speed.
Optionally, the camera also comprises a common camera, a thermal imaging camera and a water spraying device;
the water spraying device is arranged on the inner side wall of the sub-battery compartment;
the front face of each sub battery compartment is provided with a glass observation window;
the water spraying device, the common camera and the thermal imaging camera are respectively connected with the controller;
the front of the battery cabinet is provided with a sliding rod which spans across the front of the battery cabinet, the installation height of the sliding rod corresponds to the central height of the glass observation window, and the common camera and the thermal imaging camera are respectively and slidably installed on the sliding rod;
the controller is further configured to:
after the carbon dioxide spraying device is controlled to spray all carbon dioxide gas, the common camera and the thermal imaging camera are controlled to slide to the glass observation window of the sub-battery compartment to shoot pictures in the sub-battery compartment, whether flames exist in the pictures is judged, and if yes, after all electric loops of the sub-battery compartment are cut off, the water spraying device is controlled to spray water to extinguish the fire.
Optionally, the controller is further configured to:
and regularly controlling the common camera and the thermal imaging camera to slide to the glass observation window to shoot pictures in the sub-battery compartment, judging whether flames exist in the pictures, and if yes, controlling the carbon dioxide spraying device to spray a third preset amount of carbon dioxide according to a third spraying speed.
Optionally, the intelligent air conditioner further comprises an air outlet capable of intelligently controlling opening and closing;
the air outlet is arranged at the back of the sub-battery compartment;
the controller is further configured to:
and after the carbon dioxide injection device injects the second preset amount of carbon dioxide, controlling the air outlet to be opened.
Optionally, the device also comprises an explosion-proof pressure relief port;
the explosion-proof pressure relief opening is arranged on the back of the sub-battery compartment, and is provided with a pressure relief action joint which is connected with the control;
the controller is further configured to:
when the pressure relief action is detected, all the explosion-proof pressure relief openings and the air outlets are controlled to be closed, the countdown of the third duration is started, whether a command for manually locking all the explosion-proof pressure relief openings and the air outlets to be closed is received in the countdown of the third duration is judged, if yes, the countdown of the third duration is automatically ended, if not, all the electric loops of the sub-battery compartment are cut off when the countdown of the third duration is ended, and the water spraying device is controlled to spray water to extinguish the fire.
Optionally, a cooling tube is also included;
the cooling pipe is closely attached to the battery module in the sub-battery compartment.
According to the technical scheme, the control method and the control system for the electrochemical energy storage power station of the anti-electromagnetic ring network have the following advantages:
according to the fire control system for the battery cabinet of the electrochemical energy storage station, the battery cabinet is divided into the plurality of independent sub-battery cabins, the problem that all battery modules are damaged due to ignition of one battery module caused by stacking all battery modules in the same space is avoided, the combustible gas in the sub-battery cabins is judged through the plurality of combustible gas sensor modules, smoke in the sub-battery cabins is judged through the plurality of smoke sensing probes, the problem of false alarm is avoided, when the combustible gas in the sub-battery cabins is judged, abnormal gas alarm is sent out, when smoke in the battery cabins is judged, the carbon dioxide injection device is controlled to inject carbon dioxide gas of a first preset quantity, when short-circuit signals exceeding a fourth number of temperature sensing cables are monitored, the carbon dioxide injection device is controlled to inject carbon dioxide gas of a second preset quantity, and the layered abnormal state monitoring and fire control of the battery cabins are realized. The control method solves the technical problems that the existing electrochemical energy storage station battery compartment fire control logic is simple, the fire extinguishing gas is easily sprayed by mistake due to false alarm of the smoke sensing probe, and the control mode is not flexible enough, so that the layering abnormal state monitoring and fire control of the battery compartment cannot be realized.
Drawings
For a clearer description of embodiments of the invention or of solutions according to the prior art, the figures which are used in the description of the embodiments or of the prior art will be briefly described, it being obvious that the figures in the description below are only some embodiments of the invention, from which, without the aid of inventive efforts, other relevant figures can be obtained for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a fire control system for a battery cabinet of an electrochemical energy storage station provided by the invention;
FIG. 2 is a front view of the electrochemical energy storage station battery cabinet fire control system provided in the present invention;
fig. 3 is a schematic diagram of a fire control strategy based on a temperature sensing cable of the fire control system for the battery cabinet of the electrochemical energy storage station provided by the invention;
FIG. 4 is a schematic overall control diagram of the electrochemical energy storage station battery cabinet fire control system provided by the invention;
wherein, the reference numerals are as follows:
1. a battery cabinet; 2. a temperature sensing cable; 3. a cooling tube; 4. a combustible gas sensor module; 5. a carbon dioxide injection device; 6. a smoke sensing probe; 7. a temperature sensor; 8. an emergency button; 9. a fixing member; 10. a slide bar; 11. a common camera; 12. a thermal imaging camera; 13. a cabin door; 14. an observation window; 15. and the human body induction module.
Detailed Description
In order to make the present invention better understood by those skilled in the art, the following description will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
For easy understanding, referring to fig. 1 to 4, an embodiment of a fire control system for a battery cabinet 1 of an electrochemical energy storage station is provided in the present invention, which includes a battery cabinet 1, a combustible gas sensor module 4, a smoke sensing probe 6, a temperature sensing cable 2, a carbon dioxide injection device 5 and a controller;
the battery cabinet 1 comprises more than two sub-battery cabins, and the more than two sub-battery cabins are arranged side by side and are isolated from each other;
a first number of combustible gas sensor modules 4, a second number of smoke sensing probes 6, a third number of temperature sensing cables 2 and a carbon dioxide spraying device 5 are arranged in each sub-battery cabin, and the first number, the second number and the third number are all larger than 1;
all the combustible gas sensor modules 4, the smoke sensing probes 6, the temperature sensing cables 2 and the carbon dioxide spraying devices 5 are connected with a controller;
the combustible gas sensor module 4, the smoke sensing probe 6 and the carbon dioxide spraying device 5 are respectively arranged on the inner side wall of the sub-battery compartment;
the temperature sensing cable 2 is arranged at the inner top of the sub-battery compartment;
the controller is used for:
when any flammable gas sensor module 4 is monitored to detect flammable gas, judging whether all the flammable gas sensor modules 4 detect the flammable gas within a first preset time period, if so, judging that the flammable gas exists in the sub-battery compartment, and giving out a gas abnormality alarm;
when any smoke sensing probe 6 detects smoke in the sub-battery compartment, judging whether all the smoke sensing probes 6 detect the smoke in the sub-battery compartment within a second preset time period, if so, judging that the smoke in the sub-battery compartment exists, and controlling the carbon dioxide spraying device 5 to spray a first preset amount of carbon dioxide;
when a short-circuit signal exceeding a fourth number of temperature sensing cables 2 is detected, the carbon dioxide injection device 5 is controlled to inject the second preset amount of carbon dioxide gas, wherein the fourth number is smaller than the third number.
In the embodiment of the invention, the battery cabinet 1 is divided into a plurality of mutually isolated sub-battery cabins arranged side by side, and each sub-battery cabin is internally provided with a first number of combustible gas sensor modules 4, a second number of smoke sensing probes 6, a third number of temperature sensing cables 2 and a carbon dioxide spraying device 5, wherein the first number, the second number and the third number are all larger than 1. All the combustible gas sensor modules 4, the smoke sensing probes 6, the temperature sensing cables 2 and the carbon dioxide spraying devices 5 are connected with a controller. Thus, fire isolation control of the single sub-battery compartment can be achieved.
The combustible gas sensor module 4 contains a sensor capable of detecting combustible gases such as carbon monoxide, hydrogen, sulfur dioxide, methane and the like, and can collect various combustible gases which are chemically decomposed during the combustion and failure of the lithium battery. The plurality of combustible gas sensor modules 4 may be arranged at different levels of the inner side walls of the sub-battery compartment, for example two combustible gas sensor modules 4 at one level and two further combustible gas sensor modules 4 at the other level.
The installation interval of the smoke sensing probe 6 is preferably between 4 CM and 8CM, so that the smoke sensing probe can be basically collected at the same time when smoke contacts.
A plurality of temperature sensing cables 2 are arranged on the inner side of the top of the sub-battery compartment, and the number of the temperature sensing cables 2 is preferably between 6 and 9. Each temperature sensing cable 2 is in data butt joint with the controller through an RS485 data line, when the temperature sensing cable 2 is in contact with flame or smoke temperature exceeding the short circuit temperature, the resistance value between two wires in the temperature sensing cable 2 can be reduced to the short circuit, and therefore whether fire exists below each temperature sensing cable 2 is monitored independently.
The carbon dioxide injection device 5 is provided with a fixed amount of liquid carbon dioxide, and when the liquid carbon dioxide is injected, the liquid carbon dioxide is converted into carbon dioxide gas to extinguish the fire. The carbon dioxide spraying device 5 can be started and stopped in a remote manual control mode.
The cooling pipe 3 can be arranged in the fire control system of the battery cabinet 1 of the electrochemical energy storage station, the cooling pipe 3 is tightly attached to the battery module in the sub-battery cabin, and cooling liquid in the cooling pipe 3 can cool the battery module. The cooling power of the cooling pipe 3 can be regulated and controlled, and can be regulated according to the temperature in the sub-battery compartment.
The working principle of the fire control system of the battery cabinet 1 of the electrochemical energy storage station in the embodiment of the invention is as follows:
the controller monitors the states of all the combustible gas sensor modules 4, the smoke sensing probes 6 and the temperature sensing cables 2 in each sub-battery cabin in real time, when the controller monitors that any of the combustible gas sensor modules 4 detects the combustible gas, the controller judges whether all the combustible gas sensor modules 4 detect the combustible gas in a first preset time period, if all the combustible gas sensor modules 4 detect the combustible gas in the first preset time period, the controller judges that the combustible gas exists in the sub-battery cabin, at the moment, the controller sends out a gas abnormality alarm, and if all the combustible gas sensor modules 4 do not detect the combustible gas in the first preset time period, the controller considers that the combustible gas sensor modules 4 generate false alarm, and the controller does not act. When the controller monitors that any smoke sensing probe 6 detects smoke in the sub-battery compartment, judging whether all the smoke sensing probes 6 detect smoke in the sub-battery compartment in a second preset time period, if all the smoke sensing probes 6 detect smoke in the sub-battery compartment in the second preset time period, judging that the sub-battery compartment has smoke, at the moment, controlling the carbon dioxide spraying device 5 to spray carbon dioxide gas of a first preset amount, and if all the smoke sensing probes 6 do not detect smoke in the sub-battery compartment in the second preset time period, judging that the smoke sensing probes 6 have false alarms and the controller does not act. When the controller monitors a short-circuit signal exceeding a fourth number of temperature sensing cables 2, the carbon dioxide injection device 5 is controlled to inject a second preset amount of carbon dioxide gas, wherein the fourth number is smaller than the third number.
According to the fire control system of the electrochemical energy storage station battery cabinet 1, the battery cabinet 1 is divided into the plurality of independent sub-battery cabins, the problem that all battery modules are damaged due to ignition of one battery module caused by stacking all battery modules in the same space is avoided, the combustible gas in the sub-battery cabins is judged by the plurality of combustible gas sensor modules 4, smoke in the sub-battery cabins is judged by the plurality of smoke sensing probes 6, the problem of false alarm is avoided, when the combustible gas is judged in the sub-battery cabins, abnormal gas alarm is sent out, when the smoke in the battery cabins is judged, the carbon dioxide injection device 5 is controlled to inject carbon dioxide gas of a first preset quantity, and when short-circuit signals exceeding the fourth number of temperature sensing cables 2 are monitored, the carbon dioxide injection device 5 is controlled to inject carbon dioxide gas of a second preset quantity, so that the layering abnormal state monitoring and fire control of the battery cabins are realized. The technical problems that the existing battery compartment fire control logic of the electrochemical energy storage station is simple, the fire extinguishing gas is prone to being sprayed by mistake due to false alarm of the smoke sensing probe 6, and the control mode is not flexible enough and the layering abnormal state monitoring and fire control of the battery compartment cannot be achieved are solved.
As a further improvement, in one embodiment, the fire control system of the electrochemical energy storage station battery cabinet 1 further comprises a temperature sensor 7, wherein the temperature sensor 7 is mounted on the inner side wall of the sub-battery compartment, and the temperature sensor 7 is connected with the controller.
Accordingly, the controller is further configured to:
and when the temperature detected by the temperature sensor 7 is detected to be larger than a first threshold value and the smoke in the sub battery compartment is judged to be smokeless, a high-temperature alarm is sent out.
When the temperature sensor 7 in the sub-battery compartment detects that the temperature in the compartment is greater than the first threshold, the controller determines whether smoke exists in the compartment according to the state of the smoke sensing probe 6 in the sub-battery compartment, and if not, only sends out a high temperature alarm. If smoke exists, the carbon dioxide injection device 5 is controlled to inject a first preset amount of carbon dioxide gas. When the controller monitors that the temperature detected by the temperature sensor 7 is greater than the second threshold value and monitors the short-circuit signal of the fifth number of temperature sensing cables 2, the carbon dioxide injection device 5 is controlled to inject all carbon dioxide, wherein the fifth number is greater than the fourth number but not greater than the third number, the second threshold value is greater than the first threshold value, and the second threshold value is preferably 200 ℃. The fifth number is 6 optimal. When the short-circuit signals of more than 6 temperature sensing cables 2 are detected and the temperature detected by the temperature sensor 7 is more than 200 ℃, the carbon dioxide injection device 5 is controlled to inject all carbon dioxide.
When the fifth number of temperature sensing cables 2 are switched on and off instantaneously, the controller judges that the temperature sensing cables 2 are abnormal, and the carbon dioxide spraying device 5 is not started to spray carbon dioxide to extinguish the fire.
As a further improvement, in one embodiment, the third number is smaller than 10, and when the controller detects a short-circuit signal of less than the fifth number of temperature sensing cables 2, the second preset amount is calculated according to the following calculation formula:
D 2 ＝A 4 ×10％×D
wherein D is 2 For a second preset amount A 4 In a fourth amount, D is the total dioxygenCarbon dioxide amount.
For example, if the fourth number is 1, the carbon dioxide gas amount D injected by the carbon dioxide injection device 5 2 10% of the total carbon dioxide gas amount of the carbon dioxide injection device 5. The fourth quantity is 2, the carbon dioxide gas quantity D injected by the carbon dioxide injection device 5 2 20% of the total carbon dioxide gas amount of the carbon dioxide injection device 5. The fourth amount is 3, and the carbon dioxide amount D is injected by the carbon dioxide injection device 5 2 30% of the total carbon dioxide gas amount of the carbon dioxide injection device 5. The fourth quantity is 4, and the carbon dioxide gas quantity D is injected by the carbon dioxide injection device 5 2 40% of the total carbon dioxide gas amount of the carbon dioxide injection device 5, and the fourth amount of the carbon dioxide gas is 5, the carbon dioxide gas amount D injected by the carbon dioxide injection device 5 2 50% of the total carbon dioxide gas amount of the carbon dioxide injection device 5. The carbon dioxide is sprayed into a small amount to fill the gas in the sub-battery compartment, so that the possible combustible gases such as C0, hydrogen, methane and the like can be diluted, and the possible small flame can be eliminated by the small amount of carbon dioxide. The spraying of a small amount of carbon dioxide gas does not cause any threat to operators who check for abnormalities, nor does the normal operation of the equipment be affected.
As a further improvement, in one embodiment, the fire control system of the electrochemical energy storage station battery cabinet 1 is further provided with a human body sensing module 15. The human body sensing module 15 is installed on the cabin door 13 of the sub-battery cabin, and the human body sensing module 15 is connected with the controller.
Accordingly, the controller is further configured to:
before controlling the carbon dioxide injection device 5 to inject all carbon dioxide gas, starting a first time countdown, which may be 20s, judging whether the human body sensing module 15 senses personnel information in the first time countdown, if yes, extending the first time countdown to a second time countdown, which may be 1min, and sending out a voice alarm to remind personnel to evacuate the scene, and controlling the carbon dioxide injection device 5 to inject all carbon dioxide gas according to a first injection speed when the second time countdown is finished, if not, controlling the carbon dioxide injection device 5 to inject all carbon dioxide gas according to a second injection speed when the first time countdown is finished, wherein the first injection speed is lower than the second injection speed. When detecting that there is operating personnel in the sub-battery cabin, the extension countdown can give operating personnel escape time, then adjusts down the injection velocity of carbon dioxide, can prevent that too much carbon dioxide of blowout from being full of fast in the sub-battery cabin from leading to the oxygen deficiency in the cabin to threaten operating personnel's life safety, also prevent to spout the carbon dioxide frostbite operating personnel's skin fast.
As a further improvement, in one embodiment, as shown in fig. 2, the fire control system of the battery cabinet 1 of the electrochemical energy storage station is further provided with a common camera 11, a thermal imaging camera 12 and a water spraying device. The water spraying device is arranged on the inner side wall of each sub battery compartment, the front face of each sub battery compartment is provided with a glass observation window 14, the water spraying device, the common camera 11 and the thermal imaging camera 12 are respectively connected with the controller, a slide bar 10 crossing the front face of the battery cabinet 1 is arranged on the front face of the battery cabinet 1, the slide bar 10 is arranged on the battery cabinet 1 through a fixing piece 9, the installation height of the slide bar 10 corresponds to the central height of the glass observation window 14, and the common camera 11 and the thermal imaging camera 12 are respectively and slidably arranged on the slide bar 10. The mounting positions of the common camera 11, the thermal imaging camera 12 and the slide bar 10 meet the requirement of not affecting the opening and closing of the cabin door 13 of the sub-battery cabin.
Accordingly, the controller is further configured to:
after the carbon dioxide spraying device 5 is controlled to spray all carbon dioxide gas, the common camera 11 and the thermal imaging camera 12 are controlled to slide to the position of the glass observation window 14 of the sub-battery compartment to shoot pictures in the sub-battery compartment, whether flames exist in the pictures is judged, and if yes, after all electric loops of the sub-battery compartment are cut off, the water spraying device is controlled to spray water to extinguish the fire. No light exists in the sub-battery compartment, and if flame occurs, the flame can be easily found through the thermal imaging camera 12 or the common camera 11.
The controller can also periodically control the common camera 11 and the thermal imaging camera 12 to slide to the glass observation window 14 to shoot pictures in the sub-battery compartment, judge whether flame exists in the pictures, and if yes, control the carbon dioxide spraying device 5 to spray carbon dioxide gas with a third preset amount according to a third spraying speed. The water spraying device can be started and stopped in a remote manual control mode.
As a further improvement, in one embodiment, the fire control system of the battery cabinet 1 of the electrochemical energy storage station may further be provided with an air outlet capable of intelligently controlling opening and closing, and the air outlet is arranged on the back of the sub-battery compartment.
Accordingly, the controller is further configured to:
after the carbon dioxide injection device 5 injects the second preset amount of carbon dioxide, the air outlet is controlled to be opened for exhausting.
In one embodiment, the fire control system of the battery cabinet 1 of the electrochemical energy storage station can be further provided with an explosion-proof pressure relief opening, the explosion-proof pressure relief opening is arranged on the back surface of the sub-battery compartment, and the explosion-proof pressure relief opening is provided with a pressure relief action joint which is connected with the control
Accordingly, the controller is further configured to:
when the pressure relief action is detected, all the explosion-proof pressure relief openings and the air outlets are controlled to be closed, the third time countdown is started, whether a command for manually locking all the explosion-proof pressure relief openings and the air outlets to be closed is received in the third time countdown is judged, if yes, the third time countdown is automatically ended, if not, all the electric loops of the sub-battery compartment are cut off when the third time countdown is ended, the water spraying device is controlled to spray water to extinguish fire, and the sub-battery compartment is automatically isolated. Can extinguish fire and reduce the chemical decomposition speed of the battery modules in the sub-battery bins after fire extinguishing, and can minimize the content of combustible gas which can be fused into water. The control method is a self-protection isolation method of the highest-level battery cabinet 1, and is used for soaking type isolation of the out-of-control battery. In addition, an emergency button 8 can be arranged on the sub-battery compartment, and when the emergency button 8 is pressed, all electric loops of the sub-battery compartment are automatically cut off, and the water spraying device automatically sprays water to extinguish the fire.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The fire control system of the battery cabinet of the electrochemical energy storage station is characterized by comprising a battery cabinet, a combustible gas sensor module, a smoke sensing probe, a temperature sensing cable, a carbon dioxide injection device and a controller;
the battery cabinet comprises more than two sub-battery cabins, and the more than two sub-battery cabins are arranged side by side and are isolated from each other;
a first number of combustible gas sensor modules, a second number of smoke sensing probes, a third number of temperature sensing cables and a carbon dioxide injection device are arranged in each sub-battery cabin, and the first number, the second number and the third number are all larger than 1;
all the combustible gas sensor modules, the smoke sensing probe, the temperature sensing cable and the carbon dioxide injection device are connected with the controller;
the combustible gas sensor module, the smoke sensing probe and the carbon dioxide spraying device are respectively arranged on the inner side wall of the sub-battery compartment;
the temperature sensing cable is arranged at the inner top of the sub-battery compartment;
the controller is used for:
when any flammable gas sensor module is monitored to detect flammable gas, judging whether all the flammable gas sensor modules detect the flammable gas within a first preset time period, if so, judging that the flammable gas exists in the sub-battery compartment, and giving out a gas abnormality alarm;
when any smoke sensing probe detects smoke in the sub-battery compartment, judging whether all the smoke sensing probes detect the smoke in the sub-battery compartment within a second preset time period, if so, judging that the smoke in the sub-battery compartment exists, and controlling a carbon dioxide injection device to inject a first preset amount of carbon dioxide;
and when the short-circuit signals exceeding the fourth number of temperature sensing cables are detected, controlling the carbon dioxide injection device to inject the second preset amount of carbon dioxide, wherein the fourth number is smaller than the third number.
2. The electrochemical energy storage station cell cabinet fire control system of claim 1, further comprising a temperature sensor;
the temperature sensor is arranged on the inner side wall of the sub-battery compartment;
the temperature sensor is connected with the controller;
the controller is further configured to:
and when the temperature detected by the temperature sensor is greater than a first threshold value and the smoke in the sub battery compartment is judged to be smokeless, a high-temperature alarm is sent out.
3. The electrochemical energy storage station cell cabinet fire control system of claim 2, wherein the controller is further configured to:
when the controller monitors that the temperature detected by the temperature sensor is greater than a second threshold value and monitors the short-circuit signals of a fifth number of temperature sensing cables, the controller controls the carbon dioxide injection device to inject all carbon dioxide, wherein the fifth number is greater than the fourth number but not greater than the third number, and the second threshold value is greater than the first threshold value.
4. The electrochemical energy storage station cell chest fire control system of claim 3 wherein the third number is less than 10;
when the controller monitors short-circuit signals of less than the fifth number of temperature sensing cables, the calculation formula of the second preset quantity is as follows:
D 2 ＝A 4 ×10％×D
wherein D is 2 For a second preset amount A 4 D is the total carbon dioxide gas amount for the fourth amount.
5. The electrochemical energy storage station cell cabinet fire control system of claim 3, further comprising a human body sensing module;
the human body induction module is arranged on a cabin door of the sub-battery cabin;
the human body induction module is connected with the controller;
the controller is further configured to:
before controlling the carbon dioxide injection device to inject all carbon dioxide gas, starting a first time countdown, judging whether the human body induction module induces personnel information or not in the first time countdown, if so, extending the first time countdown to a second time countdown, sending out a voice alarm to remind personnel to evacuate the scene, controlling the carbon dioxide injection device to inject all carbon dioxide gas according to a first injection speed when the second time countdown is finished, and if not, controlling the carbon dioxide injection device to inject all carbon dioxide gas according to a second injection speed when the first time countdown is finished, wherein the first injection speed is lower than the second injection speed.
6. The electrochemical energy storage station cell cabinet fire control system of claim 5, further comprising a conventional camera, a thermal imaging camera, and a water spray device;
the water spraying device is arranged on the inner side wall of the sub-battery compartment;
the front face of each sub battery compartment is provided with a glass observation window;
the water spraying device, the common camera and the thermal imaging camera are respectively connected with the controller;
the front of the battery cabinet is provided with a sliding rod which spans across the front of the battery cabinet, the installation height of the sliding rod corresponds to the central height of the glass observation window, and the common camera and the thermal imaging camera are respectively and slidably installed on the sliding rod;
the controller is further configured to:
after the carbon dioxide spraying device is controlled to spray all carbon dioxide gas, the common camera and the thermal imaging camera are controlled to slide to the glass observation window of the sub-battery compartment to shoot pictures in the sub-battery compartment, whether flames exist in the pictures is judged, and if yes, after all electric loops of the sub-battery compartment are cut off, the water spraying device is controlled to spray water to extinguish the fire.
7. The electrochemical energy storage station cell cabinet fire control system of claim 6, wherein the controller is further configured to:
and regularly controlling the common camera and the thermal imaging camera to slide to the glass observation window to shoot pictures in the sub-battery compartment, judging whether flames exist in the pictures, and if yes, controlling the carbon dioxide spraying device to spray a third preset amount of carbon dioxide according to a third spraying speed.
8. The fire control system of the electrochemical energy storage station battery cabinet of claim 4, further comprising an air outlet capable of intelligently controlling opening and closing;
the air outlet is arranged at the back of the sub-battery compartment;
the controller is further configured to:
and after the carbon dioxide injection device injects the second preset amount of carbon dioxide, controlling the air outlet to be opened.
9. The electrochemical energy storage station cell cabinet fire control system of claim 8, further comprising an explosion-proof pressure relief vent;
the explosion-proof pressure relief opening is arranged on the back of the sub-battery compartment, and is provided with a pressure relief action joint which is connected with the control;
the controller is further configured to:
when the pressure relief action is detected, all the explosion-proof pressure relief openings and the air outlets are controlled to be closed, the countdown of the third duration is started, whether a command for manually locking all the explosion-proof pressure relief openings and the air outlets to be closed is received in the countdown of the third duration is judged, if yes, the countdown of the third duration is automatically ended, if not, all the electric loops of the sub-battery compartment are cut off when the countdown of the third duration is ended, and the water spraying device is controlled to spray water to extinguish the fire.
10. The electrochemical energy storage station cell cabinet fire control system of claim 1, further comprising a cooling tube;
the cooling pipe is closely attached to the battery module in the sub-battery compartment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310642314.0A CN116637316A (en) | 2023-06-01 | 2023-06-01 | Electrochemical energy storage station battery cabinet fire control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310642314.0A CN116637316A (en) | 2023-06-01 | 2023-06-01 | Electrochemical energy storage station battery cabinet fire control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116637316A true CN116637316A (en) | 2023-08-25 |
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|---|---|---|---|
| CN202310642314.0A Pending CN116637316A (en) | 2023-06-01 | 2023-06-01 | Electrochemical energy storage station battery cabinet fire control system |
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| Country | Link |
|---|---|
| CN (1) | CN116637316A (en) |
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2023
- 2023-06-01 CN CN202310642314.0A patent/CN116637316A/en active Pending
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