CN117547763A - Intelligent fire extinguishing device and method for charging station - Google Patents

Intelligent fire extinguishing device and method for charging station Download PDF

Info

Publication number
CN117547763A
CN117547763A CN202311275737.XA CN202311275737A CN117547763A CN 117547763 A CN117547763 A CN 117547763A CN 202311275737 A CN202311275737 A CN 202311275737A CN 117547763 A CN117547763 A CN 117547763A
Authority
CN
China
Prior art keywords
water
charging
cannon
control module
water outlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311275737.XA
Other languages
Chinese (zh)
Inventor
樊莉昌
郭松
龚国彬
吴龙辉
李喜林
李景渊
王世川
胡在双
周佳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Merchants Testing Vehicle Technology Research Institute Co Ltd
Original Assignee
China Merchants Testing Vehicle Technology Research Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Merchants Testing Vehicle Technology Research Institute Co Ltd filed Critical China Merchants Testing Vehicle Technology Research Institute Co Ltd
Priority to CN202311275737.XA priority Critical patent/CN117547763A/en
Publication of CN117547763A publication Critical patent/CN117547763A/en
Pending legal-status Critical Current

Links

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
    • A62C31/02—Nozzles specially adapted for fire-extinguishing
    • A62C31/03—Nozzles specially adapted for fire-extinguishing adjustable, e.g. from spray to jet or vice versa
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/67—Controlling two or more charging stations
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

The invention provides an intelligent fire extinguishing device and method for a charging station. The device comprises a control module, a thermal imaging device and a water cannon module, wherein the thermal imaging device and the water cannon module are arranged above a charging area, and the thermal imaging device is connected with the control module; the thermal imager detects the temperature condition of the charging area in real time, forms a thermal image and sends the thermal image to the control module; the control module divides the thermal image graph into areas according to the charging positions, and a water outlet water spray angle or a water outlet water spray angle calculation method corresponding to each charging position is stored in the control module; the control module positions a charging position with overhigh temperature according to a thermal image sent by the thermal imager, adjusts the water outlet angle of the water cannon module to the water outlet water spraying angle corresponding to the charging position, and controls the water cannon module to spray water to the charging position. This charging station intelligent fire extinguishing device has improved the angle accuracy when spraying water, and the precision is high, and reaction rate is fast, can aim at the fire point in very short time and put out a fire or cool down.

Description

Intelligent fire extinguishing device and method for charging station
Technical Field
The invention relates to the field of charging station safety, in particular to an intelligent fire extinguishing device and method for a charging station.
Background
With the continuous progress of new energy technology, more and more electric vehicles enter the market, but the situation that the electric vehicles have spontaneous combustion in the charging process is also frequent. Most of existing charging stations are unattended charging stations, monitoring personnel discover fire disasters through monitoring, inform operation and maintenance personnel to arrive at the scene, the operation and maintenance personnel arrive at the scene and can not put out the fire, the vehicles burn out or even ignite nearby vehicles, and huge economic loss and even life loss are caused. Therefore, how to quickly make countermeasures when the electric vehicle is charged and self-ignited is an important link for reducing life and property loss.
To solve this problem, more and more charging station fire extinguishing apparatuses are proposed, but the following problems are common:
1. whether it is lead acid battery or lithium cell, its process of starting a fire is the intensification basically, along with the temperature rise, the peripheral combustible material of intensification point smokes gradually until appearing the open flame, can see from the in-process whether smoke sensor or different grade type flame identification sensor, it is all later to the stage of fire identification, has missed the fine opportunity of putting out a fire, and the lithium cell speed of starting a fire is faster, and the fire situation is fierce, once the fire, and the degree of difficulty of putting out a fire is great.
2. Each charging pile is provided with a set of fire extinguishing device, each fire extinguishing device is required to be powered on or off with a corresponding electromagnetic valve control unit, and the problems of complex pipeline arrangement, high cost, poor reliability and difficult maintenance and headlight later exist.
3. When extinguishing fire, the accuracy is not high enough, the fire can not be accurately aligned, and the fire is delayed.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide an intelligent fire extinguishing device and method for a charging station.
In order to achieve the aim of the invention, the invention provides an intelligent fire extinguishing device of a charging station, which comprises a control module, a thermal imaging instrument and a water cannon module, wherein the thermal imaging instrument is arranged above a charging area and is connected with the control module;
the thermal imager detects the temperature condition of the charging area in real time, forms a thermal image and sends the thermal image to the control module; the control module divides the thermal image graph into areas according to the charging positions, and a water outlet water spray angle or a water outlet water spray angle calculation method corresponding to each charging position is stored in the control module;
the control module positions a charging position with overhigh temperature according to a thermal image sent by the thermal imager, adjusts the water outlet angle of the water cannon module to the water outlet water spraying angle corresponding to the charging position, and controls the water cannon module to spray water to the charging position.
The intelligent fire extinguishing device of the charging station can quickly and accurately find the charging position where the fire possibly occurs before the fire occurs through the thermal imaging instrument, and can cool and even extinguish the fire through the water cannon, thereby reducing the loss of life and property; and each charging position in the charging area is not required to be provided with a fire extinguishing device in the charging station intelligent fire extinguishing device, so that the cost is reduced, a pipeline is simple, the reliability is high, the later maintenance difficulty is low, the fire extinguishing effect is improved by adopting a water cannon to extinguish the fire, the problems that a dry powder fire extinguisher is easily influenced by wind or air circulation and diffuses to the periphery are overcome, and the heat generated in the thermal failure process of a lithium battery can be rapidly absorbed, so that the purposes of rapid cooling and fire extinguishing are achieved. Meanwhile, the intelligent fire extinguishing device of the charging station adjusts the water outlet angle of the water cannon module according to the water outlet water spraying angle corresponding to each charging position, so that the angle accuracy during water spraying is improved, the accuracy is high, the reaction speed is high, and fire extinguishing or cooling can be performed by aiming at a fire point in a very short time.
In an alternative scheme of the intelligent fire extinguishing device of the charging station, the water cannon module comprises a water cannon and a booster pump arranged on a connecting pipeline of the water cannon and a water source;
the water outlet of the water cannon is provided with a flow sensor and a water pressure sensor, the signal output ends of the flow sensor and the water pressure sensor are respectively connected to the signal input ends corresponding to the control module, and the control end of the booster pump is connected with the control signal output end corresponding to the control module; and the control module adjusts the pressure of the booster pump according to the pressure signal acquired by the water pressure sensor so as to adjust the position of the water spray drop point of the water cannon.
According to the alternative scheme, the accuracy of the water spraying drop point is improved, water can be sprayed to the target charging parking space more accurately, and the effectiveness and efficiency of fire extinguishment or cooling are further improved.
In an alternative scheme of the intelligent fire extinguishing device of the charging station, the water cannon module further comprises a driving motor, a driven gear and a switch control valve, wherein the driven gear and the switch control valve are coaxially fixed with a water cannon water outlet; the control end of the driving motor and the control end of the switch control valve are respectively connected with the control signal output end corresponding to the control module, a driving gear is fixedly connected on the output shaft of the driving motor, and the driving gear is meshed with the driven gear.
In an alternative scheme of the intelligent fire extinguishing device of the charging station, a normally closed emergency switch is arranged on a power supply line of each charging pile of each charging station, and a control end of the emergency switch is connected with the control module.
In the alternative scheme, when the temperature of the rechargeable battery of the vehicle at a certain charging position is too high, the control module controls the charging position and the emergency switches of the charging positions at the left side and the right side of the charging position to be opened, and the power supply line is disconnected, so that the safety of the charging station is further ensured.
The application also provides an intelligent fire extinguishing method of the charging station, which comprises the following steps:
collecting a thermal image of a charging area, and partitioning the thermal image according to charging potential;
presetting a water spraying horizontal distance threshold value corresponding to each charging position;
setting or calculating a water spray angle of a water cannon water outlet corresponding to each charging position based on the threshold value;
and positioning a charging position with overhigh temperature according to the thermal image, adjusting the water outlet angle of the water cannon to the water spray angle of the water cannon water outlet corresponding to the charging position, and controlling the water cannon module to spray water to the charging position.
According to the method, charging positions where fire is likely to occur can be quickly and accurately found before the fire occurs through the thermal image, the water outlet angle of the water cannon module is adjusted according to the water outlet water spraying angle corresponding to each charging position, the angle accuracy during water spraying is improved, the accuracy is high, the reaction speed is high, and fire extinguishing or cooling can be performed by aiming at the fire in a very short time.
In an alternative scheme of the intelligent fire extinguishing method of the charging station, the water spray angle alpha of the water cannon water outlet corresponding to the nth charging position is set n Is as follows:wherein S is n And (3) the water spraying horizontal distance threshold value corresponding to the nth charging position is set, and y is the height difference between the water cannon and the vehicle.
In an alternative scheme of the intelligent fire extinguishing method of the charging station, the water spraying horizontal distance threshold setting step is as follows: determining the width x of the parking space, wherein the water spraying horizontal distance threshold value corresponding to the nth parking space is
In an alternative scheme of the intelligent fire extinguishing method of the charging station, after controlling the water cannon module to spray water to the charging station, the intelligent fire extinguishing method further comprises the step of judging the water spray drop point:
calculating the horizontal distance of water spraying;
comparing the water spray horizontal distance with a preset water spray horizontal distance threshold corresponding to the charging position, judging whether the current water spray falling point is accurate, and adjusting the water pressure of the water cannon to enable the water spray horizontal distance to be equal to the preset water spray horizontal distance threshold.
The accuracy of the water cannon water spray landing point is further guaranteed by the aid of the alternative scheme.
The flow velocity of the water outlet is collected, the water spraying horizontal distance is calculated, and the calculation formula is as follows:
wherein S is x For the current water spraying horizontal distance, V 0 The flow rate of the water outlet is g, the gravity acceleration is g, alpha is an included angle of the water cannon water outlet in the vertical direction, and y is the height difference between the water cannon and the vehicle.
In an alternative scheme of the intelligent fire extinguishing method of the charging station, the flow rate and the water pressure of a water outlet are collected, and the pressure of a booster pump is adaptively adjusted according to the flow rate and the water pressure of the water outlet, the water spraying horizontal distance and the water spraying horizontal distance threshold value, so that the water cannon water spraying landing point is located at the fire point.
The accuracy of water cannon water spray landing point and the rapidity of adjustment are further improved by the aid of the alternative scheme.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic block diagram of a first embodiment;
FIG. 2 is a schematic diagram of the installation locations of a thermal imager and a fire suppression water cannon;
FIG. 3 is a schematic diagram of the principle of adjusting the angle of the water cannon water outlet by the driving motor;
FIG. 4 is a schematic diagram of the principle of water spray angle setting at the water outlet;
fig. 5 is a schematic diagram of the included angle of the water cannon water outlet in the vertical direction.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, unless otherwise specified and defined, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, mechanical or electrical, or may be in communication with each other between two elements, directly or indirectly through intermediaries, as would be understood by those skilled in the art, in view of the specific meaning of the terms described above.
Example 1
As shown in fig. 1 to 3, in an embodiment, an intelligent fire extinguishing apparatus for a charging station is provided, in which an excessively high temperature charging location area in the charging station is detected mainly by a thermal imager 2, and a control module 1 controls a water cannon to be aligned to the excessively high temperature charging location area according to a water spraying angle of a water outlet corresponding to the charging location, so as to perform water cannon water spraying cooling or fire extinguishing.
Specifically, this charging station intelligent fire extinguishing apparatus includes control module 1, sets up thermal imaging appearance 2 and water cannon module 3 in charging area top, and thermal imaging appearance 2 is connected with control module 1, and water cannon module 3 also is connected with control module 1.
The thermal imager 2 detects the temperature condition of the charging area in real time, forms a thermal image and sends the thermal image to the control module 1; the control module 1 divides the thermal image according to charging positions, and a water outlet water spray angle or a water outlet water spray angle calculation method corresponding to each charging position is stored in the control module 1. The control module 1 positions a charging position with overhigh temperature according to a thermal image sent by the thermal imager 2, adjusts the water outlet angle of the water cannon module 3 to the water outlet water spraying angle corresponding to the charging position, and controls the water cannon module 3 to spray water to the charging position for cooling or extinguishing fire. In this embodiment, when the temperature of the rechargeable battery of the vehicle at a certain charging level is too high, the control module 1 locates the fire charging level or the potential fire charging level according to the thermal image sent by the thermal imager 2, where the charging level at the too high temperature is the potential fire charging level or the fire charging level, and how to determine whether the temperature is too high is the prior art, such as setting a temperature threshold comparison, etc., which is not described herein.
In this embodiment, as shown in fig. 2 and 3, the water cannon module 3 includes a water cannon 31, a driving motor (not shown), a driving gear 32 fixedly connected to an output shaft of the driving motor, a driven gear 33 coaxially fixed to a water cannon water outlet 34 and engaged with the driving gear 32, and an on-off control valve (not shown). The water cannon 31 is connected to a water source through a connecting pipeline, the connecting pipeline can be a water hose, various water pipes and the like, a booster pump (not shown) is arranged on the connecting pipeline of the water cannon 31 and the water source, and a control end of a driving motor, a control end of the booster pump and a control end of a switch control valve are respectively connected with a control signal output end corresponding to the control module 1.
When the angle of the water cannon water outlet 34 is adjusted, the control module 1 controls the driving motor to rotate, the driving gear 32 drives the driven gear 33 to rotate, so that the angle of the water cannon water outlet 34 is adjusted, in the embodiment, an angle sensor can be arranged at the water cannon water outlet 34 to collect the horizontal angle and the vertical angle of the water cannon water outlet 34, the angle sensor is connected with the control module 1, the control module 1 confirms whether the angle of the water cannon water outlet 34 is adjusted in place according to the angle information fed back by the angle sensor, and the angle sensor is only needed to be adopted in the prior art, for example, a gyroscope; after the angle of the water cannon water outlet 34 is adjusted in place, the control module 1 controls the booster pump and the switch control valve to be opened, so that the water cannon 31 sprays water, and the purposes of cooling and even extinguishing fire are achieved.
In order to improve the accuracy of the water spray drop point, in this embodiment, a flow sensor and a water pressure sensor are disposed at the water cannon water outlet 34, signal output ends of the flow sensor and the water pressure sensor are respectively connected to corresponding signal input ends of the control module 1, and the control module 1 adjusts the pressure of the booster pump according to the pressure signal collected by the water pressure sensor so as to adjust the water cannon water spray drop point position.
In order to improve the charging safety, a normally closed emergency switch 5 is arranged on a power supply line of each charging pile 6 of a charging position, a control end of the emergency switch 5 is connected with the control module 1, and when the temperature of a vehicle charging battery of a certain charging position is too high, the control module 1 controls the charging position and the emergency switches 5 of the charging positions at the left side and the right side of the charging position to be opened, and the power supply line is disconnected. And meanwhile, an alarm module 7 connected with the control module 1 is arranged, and the control module 1 controls the alarm module 7 to give an alarm when the water cannon sprays water or when a fire occurs. The alarm module 7 can be an existing alarm, such as an audible and visual alarm. The control module 1 can also inform the user and the property management department of the alarm information in the modes of short messages, telephones and the like.
In order to further improve the accuracy of alignment of the water cannon 31 with the charging potential, the present embodiment is further provided with an infrared sensor module 4, where the infrared sensor module 4 includes an infrared sensor transmitting end disposed at each charging potential, and an infrared sensor receiving end disposed at the water cannon water outlet 34, where the infrared sensor receiving end and the transmitting end are both connected to the control module 1. When water is to be sprayed, the control module 1 controls the emission end of the infrared sensor on the corresponding charging level to emit infrared signals, the angle of the water cannon water outlet 34 is adjusted, and when the infrared sensor receiving end arranged at the angle of the water cannon water outlet 34 receives the infrared signals, the control module 1 controls the booster pump and the switch control valve to be opened, so that the water cannon sprays water. In order to improve the accuracy of water spraying, the transmitting end of the infrared sensor is arranged on the ground adjacent to the battery of the charging vehicle on the charging level.
Example two
The invention also provides an intelligent fire extinguishing method of the charging station, which can adopt the intelligent fire extinguishing device of the charging station in the implementation, and specifically comprises the following steps:
the thermal imager 2 detects the temperature condition of the charging area in real time to form a thermal image, and the control module 1 receives the thermal image and divides the thermal image into partitions according to charging potential.
And presetting a water spraying horizontal distance threshold corresponding to each charging position. The threshold may be measured directly in situ or calculated.
By calculation, the water spray level distance threshold value in this embodimentThe calculation formula is as follows: water spray level distance threshold corresponding to nth parking spaced is a constant, is an error allowable range value, and x is the parking space width. The national standard prescribes that the height of the electric bicycle is not less than 63.5cm, and the height of most saddle vehicles is about 80cm, and the width of the saddle vehicles except the handlebars is not more than 45cm, so that the water spraying target is positioned in the high-speed range of 45cm width and 80cm in the center of each parking space.
And setting or calculating the water spray angle of the water cannon water outlet corresponding to each charging position based on the water spray horizontal distance threshold value in the control module 1.
The control module 1 positions the charging position with overhigh temperature according to the thermal image, adjusts the angle of the water cannon water outlet 34 to enable the water cannon water outlet to swing to the water spraying angle of the water cannon water outlet corresponding to the charging position in the arrangement direction of the charging position, and controls the water cannon module 3 to spray water to the charging position.
In this embodiment, the water spray angle α of the water cannon outlet corresponding to each charging position may be obtained through an on-site survey measurement simulation test, or may be obtained through calculation. When the calculation is performed, as shown in fig. 4, the water spray angle alpha of the water cannon water outlet corresponding to the nth charging position n The method comprises the following steps:wherein S is n And the water spray horizontal distance threshold value corresponding to the nth charging position is given, and y is the height difference between the water cannon 31 and the vehicle. The water spray angle α of the water cannon outlet in this embodiment refers to the angle between the water cannon outlet 34 and the vertical direction. The nth charge bit here refers to the nth charge bit counted in the charge bit arrangement direction from the 1 st charge bit corresponding downward in the vertical direction of the water cannon 31.
In the adjustment process, the angle between the water cannon water outlet 34 and the vertical direction can be acquired in real time, the control module 1 confirms whether the angle adjustment of the water cannon water outlet 34 is in place according to the angle information fed back in real time, and when the angle information fed back in real time is consistent with the set water spraying angle of the water cannon water outlet, the adjustment is indicated to be in place.
In order to further ensure the accuracy of the water cannon water spray landing point, the water cannon module 3 is controlled to spray water to the charging position, and the water spray landing point judging step is further included, and specifically comprises the following steps:
the water spray level distance is calculated, in this embodiment according to the following steps:
the flow rate of the water outlet is collected, in this embodiment, the flow rate of the water outlet is collected by arranging a flowmeter at the water outlet, so as to obtain the flow rate of the water outlet, and the calculation formula of the water spraying horizontal distance is as follows:
wherein S is x For the current water spraying horizontal distance, V 0 For the flow rate of the water outlet, the water is added with->Q is the water outlet flow, S is the water outlet sectional area, g is the gravitational acceleration, and alpha is the angle of the water cannon water outlet 34 in the vertical direction, as shown in FIG. 5.
Then the water spray is horizontally separated by a distance S x Comparing with a preset water spraying horizontal distance threshold value, judging whether the current water spraying falling point is accurate, namely the current water spraying horizontal distance S x If the water spray level distance threshold corresponding to the current charging position is equal, if the water spray level distance threshold is equal, the current water spray falling point is accurate, if the water spray falling point is unequal, the water pressure of the water cannon 31 is adjusted, when the water spray level distance is adjusted, if the calculated water spray level distance is smaller than the preset water spray level distance threshold, the water pressure of the water cannon 31 is adjusted to be increased, and if the calculated water spray level distance is larger than the preset water spray level distance threshold, the water pressure of the water cannon is adjusted to be reduced until the water spray level distance is equal to or approximately equal to the preset water spray level distance threshold. In this embodiment, each charging position corresponds to a water spraying horizontal distance threshold.
In order to further improve the accuracy of the water cannon water spray landing point and the rapidness of adjustment, the water outlet water pressure is also collected, the pressure of the booster pump is adaptively adjusted according to the water outlet flow speed, the water outlet water pressure, the water spray horizontal distance and the water spray horizontal distance threshold value, so that the water cannon water spray landing point is located at a fire point, and the pressure of the booster pump can be calculated by adopting a P ID algorithm during the self-adaptive adjustment.
When the booster pump cannot increase to the required pressure, the control module 1 adjusts the vertical angle of the water cannon water outlet 34 in a self-adaptive closed-loop mode according to the real-time water outlet flow rate, the water outlet water pressure, the water spraying horizontal distance threshold value and the vertical angle of the water outlet, so that the water cannon water spraying landing point is located at the ignition point.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. The intelligent fire extinguishing device for the charging station is characterized by comprising a control module, a thermal imaging instrument and a water cannon module, wherein the thermal imaging instrument and the water cannon module are arranged above a charging area, and the thermal imaging instrument is connected with the control module;
the thermal imager detects the temperature condition of the charging area in real time, forms a thermal image and sends the thermal image to the control module; the control module divides the thermal image graph into areas according to the charging positions, and a water outlet water spray angle or a water outlet water spray angle calculation method corresponding to each charging position is stored in the control module;
the control module positions a charging position with overhigh temperature according to a thermal image sent by the thermal imager, adjusts the water outlet angle of the water cannon module to the water outlet water spraying angle corresponding to the charging position, and controls the water cannon module to spray water to the charging position.
2. The intelligent fire extinguishing apparatus of claim 1, wherein the water cannon module comprises a water cannon and a booster pump disposed on a connection line of the water cannon and a water source;
the water outlet of the water cannon is provided with a flow sensor and a water pressure sensor, the signal output ends of the flow sensor and the water pressure sensor are respectively connected to the signal input ends corresponding to the control module, and the control end of the booster pump is connected with the control signal output end corresponding to the control module; and the control module adjusts the pressure of the booster pump according to the pressure signal acquired by the water pressure sensor so as to adjust the position of the water spray drop point of the water cannon.
3. The intelligent fire extinguishing apparatus of charging station according to claim 2, wherein the water cannon module further comprises a driving motor, a driven gear coaxially fixed with a water cannon water outlet, and an on-off control valve; the control end of the driving motor and the control end of the switch control valve are respectively connected with the control signal output end corresponding to the control module, a driving gear is fixedly connected on the output shaft of the driving motor, and the driving gear is meshed with the driven gear.
4. The intelligent fire extinguishing apparatus of charging station according to claim 1, wherein the power supply line of each charging pile of the charging station is provided with a normally closed emergency switch, and the control end of the emergency switch is connected with the control module.
5. An intelligent fire extinguishing method for a charging station is characterized by comprising the following steps:
collecting a thermal image of a charging area, and partitioning the thermal image according to charging potential;
presetting a water spraying horizontal distance threshold value corresponding to each charging position;
setting or calculating a water spray angle of a water cannon water outlet corresponding to each charging position based on the threshold value;
and positioning a charging position with overhigh temperature according to the thermal image, adjusting the water outlet angle of the water cannon to the water spray angle of the water cannon water outlet corresponding to the charging position, and controlling the water cannon module to spray water to the charging position.
6. The intelligent fire extinguishing method of charging station according to claim 5, wherein the water gun water outlet water spraying angle alpha corresponding to the nth charging position n The calculation formula of (2) is as follows:wherein S is n And (3) the water spraying horizontal distance threshold value corresponding to the nth charging position is set, and y is the height difference between the water cannon and the vehicle.
7. The intelligent fire extinguishing method of a charging station according to claim 5, wherein the water spray level distance threshold setting step is: determining the width x of the parking space, wherein the water spraying horizontal distance threshold value corresponding to the nth parking space is
8. The intelligent fire extinguishing method of charging station according to claim 5, further comprising the step of determining a water spray landing point after controlling the water cannon module to spray water to the charging station:
calculating the horizontal distance of water spraying;
comparing the water spray horizontal distance with a preset water spray horizontal distance threshold corresponding to the charging position, judging whether the current water spray falling point is accurate, and adjusting the water pressure of the water cannon to enable the water spray horizontal distance to be equal to the preset water spray horizontal distance threshold.
9. The intelligent fire extinguishing method of charging station according to claim 8, wherein the flow rate of the water outlet is collected, and the water spraying horizontal distance is calculated, wherein the calculation formula is as follows:
wherein S is x For the current water spraying horizontal distance, V 0 The flow rate of the water outlet is g, the gravity acceleration is g, alpha is an included angle of the water cannon water outlet in the vertical direction, and y is the height difference between the water cannon and the vehicle.
10. The intelligent fire extinguishing method of the charging station according to claim 8, wherein the flow rate of the water outlet and the water pressure of the water outlet are collected, and the pressure of the booster pump is adaptively adjusted according to the flow rate of the water outlet, the water pressure of the water outlet, the water spraying horizontal distance and the water spraying horizontal distance threshold value, so that the water cannon water spraying landing point is located at the fire point.
CN202311275737.XA 2023-09-28 2023-09-28 Intelligent fire extinguishing device and method for charging station Pending CN117547763A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311275737.XA CN117547763A (en) 2023-09-28 2023-09-28 Intelligent fire extinguishing device and method for charging station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311275737.XA CN117547763A (en) 2023-09-28 2023-09-28 Intelligent fire extinguishing device and method for charging station

Publications (1)

Publication Number Publication Date
CN117547763A true CN117547763A (en) 2024-02-13

Family

ID=89817420

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311275737.XA Pending CN117547763A (en) 2023-09-28 2023-09-28 Intelligent fire extinguishing device and method for charging station

Country Status (1)

Country Link
CN (1) CN117547763A (en)

Similar Documents

Publication Publication Date Title
CN104815407B (en) A kind of electric tunnel inspection robot fire-fighting system interlock method and system
CN101649811B (en) Wind-power engine room automatic fire-fighting monitoring and emergency system
CN206811966U (en) A kind of multifunctional fire-fighting intelligent robot with self-shield
CN201496202U (en) Automatic fire-service measurement, control and emergency system of wind generator nacelle
CN209848181U (en) Full-automatic fire extinguishing system of wind generating set
CN103285540A (en) Suspended type intelligent fire-fighting robot
CN110136391A (en) A kind of energy-accumulating power station fire early-warning system and method
CN111114360B (en) Electric motor car device and system of answering fast that catches fire
CN213555047U (en) Fire-fighting robot with self-explosion fire extinguishing function
CN112915420A (en) Fire scene positioning and fire extinguishing method of warehouse intelligent fire extinguishing robot
CN114712758A (en) Fire detection and automatic fire extinguishing method for whole process of lithium battery energy storage station
CN106875616A (en) A kind of quick early warning of forest fire and long-range suppression system and method
CN213760307U (en) Ground type intelligent fire-extinguishing robot
CN117547763A (en) Intelligent fire extinguishing device and method for charging station
CN114191743A (en) Fire early warning and fire extinguishing system based on risk assessment and automatic fire-fighting server
CN107376162B (en) Vehicle-mounted battery fire extinguishing device
CN219896881U (en) Linkage superfine dry powder fire extinguishing equipment for ground garage
CN205434752U (en) Alert extinguishing device that uses
CN213760292U (en) Unmanned aerial vehicle wisdom fire extinguishing robot
CN208176785U (en) A kind of vcehicular tunnel self-extinguishing machine people
CN114191746A (en) Electric vehicle charging and discharging facility fire-fighting system with electric nozzle
CN216777807U (en) Compressed air foam automatic fire extinguishing system
CN207462524U (en) A kind of fire control smoke exhausting firefighting robot control system
CN201558436U (en) Long-distance intelligent fire fighting vehicle
CN213347560U (en) Large-space mobile intelligent fire-fighting system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination