CN117438735A

CN117438735A - Magnetic attraction control method and related device for risk prevention and control of energy storage container

Info

Publication number: CN117438735A
Application number: CN202311744174.4A
Authority: CN
Inventors: 李智; 彭锋
Original assignee: Wanzhen Fire Technology Guangdong Co ltd
Current assignee: Wanzhen Fire Technology Guangdong Co ltd
Priority date: 2023-12-19
Filing date: 2023-12-19
Publication date: 2024-01-23
Anticipated expiration: 2043-12-19
Also published as: CN117438735B

Abstract

The application discloses a magnetic attraction control method and a related device for risk prevention and control of an energy storage container, wherein the method comprises the following steps: receiving a target covering instruction from a main control module; and controlling the cover plate assembly to close the ventilation channel according to the target covering instruction, and adjusting the magnetic attraction of the magnetic attraction module to a target value, wherein the target value is larger than a preset threshold, the preset threshold is a magnetic attraction threshold for meeting the pressure maintenance requirement of the energy storage container in a water immersion state and an explosion venting state, the water immersion state is a state that the energy storage container starts a water immersion mode to extinguish fire, and the explosion venting state is a state that the energy storage container starts an explosion venting plate to discharge abnormal gas in the energy storage container. The application is favorable to improving energy storage system and carries out stability and success rate of fire control safety control to energy storage container through fire control measures such as water logging fire extinguishing or explosion venting board exhaust.

Description

Magnetic attraction control method and related device for risk prevention and control of energy storage container

Technical Field

The application relates to the technical field of battery energy storage systems, in particular to a magnetic attraction control method and a related device for risk prevention and control of an energy storage container.

Background

The energy storage container is a common energy storage device, and an internal energy storage unit of the energy storage container can generate abnormal gas when in abnormal operation, and can trigger a fire under the condition of temperature runaway, so that a large threat is generated to the energy storage unit in the energy storage container, and even the risk of explosion exists. At present, the ventilation device of the energy storage container mainly realizes the cooling function, and the ventilation device is fixedly connected with the energy storage container and a space or an air cooling device outside the energy storage container, so that the fire risk cannot be effectively controlled.

Disclosure of Invention

The embodiment of the application provides a magnetic attraction control method and a related device for risk prevention and control of an energy storage container, so as to improve the stability and success rate of fire safety control of an energy storage system on the energy storage container through fire measures such as water immersion fire extinguishing or explosion venting plate exhaust.

In a first aspect, an embodiment of the present application provides a magnetic attraction control method for risk prevention and control of an energy storage container, which is applied to a control module of a ventilation device in an energy storage system, where the energy storage system includes a main control module, an energy storage container, the ventilation device, and an explosion venting plate, the ventilation device includes a housing, the control module, a fan module, a cover plate assembly, and a magnetic attraction module, the housing is mounted on the energy storage container and forms a ventilation channel in communication with the energy storage container, the fan module is mounted in the ventilation channel, the cover plate assembly is connected with the housing and can rotate relative to the housing to conduct or close one end of the ventilation channel facing away from the energy storage container, and the magnetic attraction module is mounted on the housing and can adsorb the cover plate assembly;

The method comprises the following steps:

receiving a target covering instruction from the main control module;

and controlling the cover plate assembly to close the ventilation channel according to the target closing instruction, and adjusting the magnetic attraction of the magnetic attraction module to a target value, wherein the target value is larger than a preset threshold value, the preset threshold value is a magnetic attraction threshold value for meeting the pressure maintenance requirement of the energy storage container in a water immersion state and an explosion venting state, the water immersion state is a state that the energy storage container is in a water immersion starting mode for extinguishing fire, and the explosion venting state is a state that the energy storage container is in a water immersion starting mode and the explosion venting plate is in a discharging abnormal gas state in the energy storage container.

In one possible example, the preset threshold is determined by:

acquiring installation position information of the ventilation device, wherein the installation position information is used for representing the relative position relation between the ventilation device and the energy storage container;

acquiring water logging information, wherein the water logging information is data information used for representing the association between the energy storage container and a water logging state;

determining a first pressure value corresponding to the ventilation device according to the water immersion information and the installation position information;

Acquiring explosion venting information, and determining a second pressure value corresponding to the ventilation device according to the explosion venting information, wherein the explosion venting information is data information used for representing the association between the energy storage container and the explosion venting state;

comparing the first pressure value with the second pressure value to obtain a comparison result;

determining the larger value of the first pressure value and the second pressure value as a target pressure value according to the comparison result;

and determining the preset threshold according to the target pressure value.

In one possible example, the cover plate assembly includes a driving module and a cover plate, the driving module is used for driving the cover plate to rotate so as to conduct or close one end of the ventilation channel, which is away from the energy storage container, and the magnetic attraction module is used for adsorbing the cover plate;

the determining the preset threshold according to the target pressure value comprises the following steps:

acquiring a plurality of pre-installation positions of the magnetic attraction module, wherein the pre-installation positions are any positions surrounding the circumferential side surface of the cover plate;

determining static tension of the driving module for the plurality of pre-installation positions, wherein the static tension is used for representing maximum tension of the driving module for the pre-installation positions in a non-running state of the ventilation device;

Determining the minimum value in the static tension corresponding to each of the plurality of pre-installation positions as a target tension value;

and determining the preset threshold according to the target pressure value and the target tension value, and determining a pre-installation position corresponding to the target tension value as a target installation position of the magnetic module.

In one possible example, the driving module includes a driving member and a rotation shaft;

the determining the static tension of the driving module for the plurality of pre-installation positions includes:

the following is performed for a single pre-installed location:

acquiring a static acting force threshold of the driving piece for the rotating shaft, wherein the static acting force threshold is used for representing the maximum limiting force of the driving piece on the rotating shaft in the non-running state of the ventilation device;

determining the distance between the pre-installation position and the rotating shaft;

and determining the static tension corresponding to the pre-installation position according to the static acting force threshold and the distance.

In one possible example, the determining the preset threshold according to the target pressure value and the target tension value includes:

and determining a difference value between the target pressure value and the target tension value, and determining the difference value as the preset threshold value.

In one possible example, the determining the first pressure value corresponding to the ventilation device according to the water immersion information and the installation position information includes:

acquiring the soaking height and the soaking quantity according to the soaking information;

determining the installation height of the ventilation device according to the installation position information;

comparing the immersion height with the installation height to determine whether the ventilation device is immersed in a liquid;

if yes, determining the first pressure value according to the installation height and the water immersion quantity;

if not, determining that the first pressure value is zero.

In one possible example, the method further comprises:

receiving a target opening instruction from the main control module;

adjusting the magnetic attraction force of the magnetic attraction module to zero according to the target opening instruction; and controlling the cover plate assembly to be opened according to the opening instruction so as to conduct one end of the ventilation channel, which is far away from the energy storage container.

In a second aspect, an embodiment of the present application provides a magnetic attraction control device for risk prevention and control of an energy storage container, which is applied to a control module of a ventilation device in an energy storage system, where the energy storage system includes a main control module, an energy storage container, the ventilation device, and an explosion venting plate, the ventilation device includes a housing, the control module, a fan module, a cover plate assembly, and a magnetic attraction module, the housing is mounted on the energy storage container and forms a ventilation channel in communication with the energy storage container, the fan module is mounted in the ventilation channel, the cover plate assembly is connected with the housing and can rotate relative to the housing to conduct or close one end of the ventilation channel away from the energy storage container, and the magnetic attraction module is mounted on the housing and can adsorb the cover plate assembly;

The magnetic attraction control device for risk prevention and control of the energy storage container comprises:

the receiving unit is used for receiving a target covering instruction from the main control module;

the control unit is used for controlling the cover plate assembly to close the ventilation channel according to the target covering instruction, adjusting the magnetic attraction of the magnetic attraction module to a target value, wherein the target value is larger than a preset threshold, the preset threshold is a magnetic attraction threshold for meeting the pressure maintenance requirement of the energy storage container in a water immersion state and an explosion venting state, the water immersion state is a state that the energy storage container is started in a water immersion mode to extinguish fire, and the explosion venting state is a state that the energy storage container is started in the water immersion mode to vent abnormal gas in the energy storage container.

In a fourth aspect, embodiments of the present application provide a computer storage medium storing a computer program for electronic data exchange, wherein the computer program causes a computer to perform some or all of the steps as described in the first aspect of the present embodiment.

It can be seen that this embodiment is applied to ventilation unit's among the energy storage system control module, the energy storage system includes main control module, the energy storage container, ventilation unit, and let out and explode the board, ventilation unit includes the casing, control module, the fan module, the apron subassembly, and magnetism inhale the module, the casing is installed in the energy storage container, and be formed with the ventilation passageway that switches on with the energy storage container, the fan module is installed in ventilation passageway, apron subassembly and casing are connected, and can rotate with switching on or close the one end that the ventilation passageway deviates from the energy storage container with relative casing, magnetism inhale the module and install in the casing, and adsorbable apron subassembly. In this example, if produce abnormal gas in the energy storage container, main control module can send to control module and open the instruction in order to instruct the apron subassembly to open in order to switch on the one end that ventilation channel deviates from the energy storage container to start the fan module, thereby take out abnormal gas in the energy storage container to ventilation channel in the follow energy storage container through the fan module, again deviate from energy storage container one end from ventilation unit and discharge outside the energy storage container, in order to reduce the abnormal gas concentration in the energy storage container, reduce the risk of firing.

The application also receives a target covering instruction from the main control module; and controlling the cover plate assembly to close the ventilation channel according to the target covering instruction, and adjusting the magnetic attraction of the magnetic attraction module to a target value, wherein the target value is larger than a preset threshold, the preset threshold is a magnetic attraction threshold for meeting the pressure maintenance requirement of the energy storage container in a water immersion state and an explosion venting state, the water immersion state is a state that the energy storage container starts a water immersion mode to extinguish fire, and the explosion venting state is a state that the energy storage container starts an explosion venting plate to discharge abnormal gas in the energy storage container. Therefore, when the ventilation device cannot meet the abnormal gas emission requirement and needs to discharge ventilation through the explosion venting plate, the electric control cover plate of the ventilation device can be prevented from being flushed due to overlarge internal pressure in the process of gradually rising the internal pressure of the energy storage container, so that the gas in the energy storage container is partially discharged to gradually reach the internal and external pressure balance of the energy storage container, and the explosion venting plate cannot act. Therefore, the potential safety hazard caused by the fact that a large amount of abnormal gas still exists in the energy storage container when the internal pressure and the external pressure of the energy storage container are balanced can be further avoided. Simultaneously, this scheme can also prevent that liquid in the energy storage container from punching the cover plate subassembly and leading to liquid leakage in the scene of putting out a fire in the water logging, influences the effect of putting out a fire to can further improve the intelligent and the reliability to the fire control safety control of energy storage container level. And the stability and success rate of the energy storage system for carrying out fire safety control on the energy storage container through fire-fighting measures such as water immersion fire extinguishing or explosion venting plate exhaust are improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic architecture diagram of an energy storage system according to an embodiment of the present disclosure;

fig. 2 is an application scenario diagram of an energy storage system provided in an embodiment of the present application;

fig. 3 is a schematic structural view of a ventilation device according to an embodiment of the present application;

fig. 4 is a schematic view of a part of a structure of a ventilation device according to an embodiment of the present application;

FIG. 5 is a cross-sectional view of a ventilation device provided in an embodiment of the present application;

fig. 6 is a schematic flow chart of a magnetic attraction control method for risk prevention and control of an energy storage container according to an embodiment of the present application;

fig. 7 is a diagram illustrating a composition example of an electronic device according to an embodiment of the present application;

fig. 8 is a functional unit block diagram of a first magnetic control device for risk prevention and control of an energy storage container according to an embodiment of the present application;

Fig. 9 is a functional unit block diagram of a second magnetic attraction control device for risk prevention and control of an energy storage container according to an embodiment of the present application.

Reference numerals: 200. a ventilation device; 201. a housing; 201a, a first installation space; 201b, a second installation space; 201c, ventilation channels; 201d, a first tuyere; 202. a fan module; 203. a cover plate assembly; 2031. a driving module; 20311. a driving member; 20312. a rotating shaft; 2032. a cover plate; 204. a control module; 205. a magnetic attraction module; 400. an energy storage container; 500. explosion venting plate.

Detailed Description

In order to make the present application solution better understood by those skilled in the art, the following description will clearly and completely describe the technical solution in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

The terms first, second and the like in the description and in the claims of the present application and in the above-described figures, are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

Embodiments of the present application are described below with reference to the accompanying drawings.

The technical solution of the present application may be applied to the energy storage system 10 as shown in fig. 1. Referring to fig. 1 and 2 in combination, the energy storage system 10 includes a main control module 100, at least one ventilation device 200, an anomaly detector 300, an energy storage container 400, and an explosion venting plate 500. The main control module 100 may be communicatively connected to the ventilation device 200 and the anomaly detector 300, respectively.

The main control module 100 may be a server or a local device. The cloud server can be a cloud server for providing cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, CDNs, basic cloud computing services such as big data and artificial intelligent platforms. Servers include, but are not limited to, servers hosting IOS systems, android systems, microsoft systems, or other operating systems, and are not limited herein. The local device may be a handheld device, an in-vehicle device, a wearable device, a computing device, or other processing device connected to a wireless modem, as well as various forms of user equipment (UserEquipment, UE), mobile stations (MobileStation, MS), terminal devices (terminally), etc. The technical scheme of the application can be applied to a main control module of the energy storage container or a control module of the ventilation device.

The anomaly detector 300 is used for detecting the concentration of an anomaly gas (such as a combustible gas) in the energy storage container. The abnormality detector 300 may be a semiconductor detector, an infrared detector, or the like, and is not further limited herein. The abnormality detector 300 may be installed at any position in the energy storage container 400 or in the ventilation device 200, and is not limited thereto, so long as it can detect the concentration of the abnormal gas in the energy storage container 400.

In one possible example, referring to fig. 2, the ventilation device 200, the explosion venting plate 500 is mounted to the energy storage container 400, and the ventilation device 200 is used to activate when an abnormality is detected by the abnormality detector 300 to vent the gas within the energy storage container out of the energy storage container 400. The ventilation device 200 (which may be a different ventilation device than that described above) may also be used to blow air outside the energy storage container 400 into the energy storage container to balance the air pressure inside and outside the energy storage container 400. The explosion venting plate 500 is used for being activated when an explosion venting condition is reached, wherein the explosion venting condition is that the internal pressure of the energy storage container 400 reaches a preset internal pressure threshold value, so as to vent the gas in the energy storage container 400 to the outside of the energy storage container 400. Specifically, after the main control module 100 detects that the abnormal gas in the energy storage container 400 cannot be completely exhausted through the ventilation device 200, the cover plate of the ventilation device 200 may be closed to increase the internal pressure of the energy storage container 400 to activate the explosion venting plate 500.

Referring to fig. 3 to 5, the ventilation device 200 includes a housing 201, a fan module 202, a cover plate assembly 203, and a magnetic attraction module 205, the housing 201 is mounted to the energy storage container 400 and is formed with a ventilation channel 201c in communication with the energy storage container 400, the fan module 202 is mounted in the ventilation channel 201c, the cover plate assembly 203 is connected to the housing 201 and is capable of rotating relative to the housing 201 to conduct or close one end of the ventilation channel 201c facing away from the energy storage container 400, and the magnetic attraction module 205 is mounted to the housing 201 and is capable of attracting the cover plate assembly 203.

The fan module 202 can adjust the operation rotation speed based on the control of the main control module. The magnetic attraction module 205 may be a magnet, a winding, or a combination of a magnet and a winding, and is not limited thereto.

Specifically, the housing 201 is formed with a first installation space 201a and a second installation space 201b which are separately provided, the ventilation channel 201c is located in the first installation space 201a, and two ends of the ventilation channel 201c are formed with a first air port 201d and a second air port located at two opposite sides of the housing 201, and the second air port is communicated with the interior of the energy storage container 400. It can be seen that, in this example, by mounting the control module 204 and the fan module 202 separately, the influence of environmental factors on the control module 204 can be reduced, thereby reducing the loss of the control module 204.

Specifically, the ventilation device 200 further includes a control module 204, where the control module 204 is installed in the second installation space 201b, and the control module 204 is communicatively connected to the main control module. Specifically, the cover assembly 203 includes a driving module 2031 and a cover 2032, the driving module 2031 is configured to drive the cover 2032 to rotate to open or close an end of the ventilation channel 201c facing away from the energy storage container 400, and the magnetic attraction module 205 is configured to attract the cover 2032. Further, the driving module 2031 includes a driving element 20311 and a rotating shaft 20312, the driving element 20311 is installed in the second installation space 201b, the rotating shaft 20312 is installed in the first installation space 201a and can extend into the second installation space 201b to be connected with the driving element 20311, the cover plate 2032 is connected with the rotating shaft 20312, and the driving element 20311 can drive the rotating shaft 20312 to rotate so as to drive the cover plate 2032 to turn over to conduct or close the first air port 201d. The driving member 20311 may be a motor or other axial driving structure without further limitation herein.

In a specific implementation, the control module 204 is configured to receive an instruction from the main control module, and control the ventilation device 200 to operate according to the instruction. For example, if the ventilation device 200 receives the target covering instruction from the main control module after being started, the control module 204 may control the driving member 20311 to rotate the rotating shaft 20312 according to the starting instruction, so as to drive the cover plate 2032 to turn over and close towards the fan module 202 through the rotating shaft 20312. The control module 204 may also control the fan module 202 to stop rotating according to the target capping command. The control module 204 may also adjust the magnetic attraction force of the magnetic attraction module 205 to a target value according to the target capping command. The target value is greater than a preset threshold, the preset threshold is a magnetic attraction threshold for meeting pressure maintenance requirements of the energy storage container 400 in a water immersion state and an explosion venting state, the water immersion state is a state that the energy storage container 400 starts a water immersion mode to extinguish a fire, and the explosion venting state is a state that the energy storage container 400 starts the explosion venting plate 500 to discharge abnormal gas in the energy storage container 400.

It can be seen that, in this example, the magnetic attraction module 205 provided for the ventilation device 200 can increase the force of the cover 2032 being attracted to the housing 201, so as to reduce the possibility that the cover 2032 is opened abnormally, thereby improving the reliability of the application of the ventilation device 200.

Referring to fig. 6, fig. 6 is a flowchart of a magnetic attraction control method for risk prevention and control of an energy storage container according to an embodiment of the present application, where the method may be applied to a control module in a ventilation device 200 of an energy storage system 10 shown in fig. 1, and as shown in fig. 6, the magnetic attraction control method for risk prevention and control of an energy storage container includes:

step S610, receiving a target covering instruction from the main control module.

The target covering instruction is used for indicating the ventilation device to close the cover plate assembly and starting the magnetic attraction module to adsorb so as to lock the cover plate assembly.

Specifically, if the target closing instruction is an instruction for the explosion venting state. After the main control module instructs to control the ventilation device to run at the maximum rotation speed to exhaust air, the concentration of the abnormal gas is detected to continuously increase, and the abnormal gas exhausted by the ventilation device is indicated to be lower than the increment of the abnormal gas, namely, the condition that the abnormal gas cannot be restrained from increasing by the ventilation device is indicated, at the moment, the main control module can send the target closing instruction to the control module so as to stop the exhaust of the abnormal gas, so that the internal pressure of the energy storage container is increased while the abnormal gas is further increased, the internal pressure of the energy storage container is increased to the explosion venting threshold value of the explosion venting plate, and the abnormal gas is exhausted through the explosion venting plate.

Specifically, if the target closing instruction is an instruction for a water immersion state. When the main control module detects that the energy storage container has fire (under the condition of no fire extinguishing device), or when the main control module detects that the fire extinguishing device in the energy storage container cannot control the fire, the main control module can send the target covering instruction to the control module so as to instruct the control module to control the cover plate of the covering ventilation device. Meanwhile, the main control module can also control the water immersion equipment to inject water into the energy storage container so as to control fire in a water immersion mode, thereby achieving the aim of extinguishing fire.

Step S620, controlling the cover plate assembly to close the ventilation channel according to the target covering instruction, and adjusting the magnetic attraction force of the magnetic attraction module to a target value, wherein the target value is greater than a preset threshold, and the preset threshold is a magnetic attraction force threshold for meeting the pressure maintenance requirements of the energy storage container in a water immersion state and an explosion venting state.

The water immersion state is a state that the energy storage container starts a water immersion mode to extinguish fire, and the explosion venting state is a state that the energy storage container starts an explosion venting plate to vent abnormal gas in the energy storage container.

Specifically, when the control module controls the magnetic attraction module to adsorb with a preset threshold value, the pressure in the energy storage container born by the cover plate is the same as the sum of the magnetic attraction born by the cover plate and the static resistance of the rotating shaft to the cover plate. And setting the target value larger than a preset threshold value to ensure the closing reliability of the cover plate. Further, the target value can be close to a preset threshold value, so that the target value can ensure the closing reliability of the cover plate, and meanwhile, the magnetic attraction requirement on the magnetic attraction module is reduced, and the cost is reduced.

In the specific implementation, if the magnetic attraction module is not electrified, the target value is the magnetic attraction of the magnetic attraction module. After the control module controls the cover plate assembly to be closed, the magnetic attraction module can automatically adsorb the cover plate assembly to ensure the closing firmness of the cover plate assembly. Under the condition, when the ventilation device is started to exhaust air, the driving force of the driving piece in the cover plate assembly to the rotating shaft is larger than the magnetic attraction force of the magnetic attraction module, so that the driving piece can smoothly open the cover plate through the rotating shaft to conduct the inner space and the outer space of the energy storage container.

Or in the specific implementation, if the magnetic attraction module is electrified, the magnitude of the magnetic attraction can be adjusted. The target value may be the magnitude of the magnetic attraction force possessed by the magnetic attraction module itself, or may be the magnitude of the magnetic attraction force to which the magnetic attraction module is adjusted after the energization adjustment.

The target value may be the magnetic attraction of the magnetic attraction module, so that even if the magnetic attraction module is electrified, the magnetic attraction threshold value of the pressure maintenance requirement of the energy storage container in the water immersion state and the explosion release state can be met if the power failure occurs in the water immersion or explosion release process of the energy storage container, so as to smoothly achieve the aim of extinguishing or exhausting, thereby improving the risk resistance of the energy storage system and further improving the success rate of executing control on the fire-extinguishing measures.

In one possible example, the preset threshold is determined by: acquiring installation position information of the ventilation device, wherein the installation position information is used for representing the relative position relation between the ventilation device and the energy storage container; acquiring water logging information, wherein the water logging information is data information used for representing the association between the energy storage container and a water logging state; determining a first pressure value corresponding to the ventilation device according to the water immersion information and the installation position information; acquiring explosion venting information, and determining a second pressure value corresponding to the ventilation device according to the explosion venting information, wherein the explosion venting information is data information used for representing the association between the energy storage container and the explosion venting state; comparing the first pressure value with the second pressure value to obtain a comparison result; determining the larger value of the first pressure value and the second pressure value as a target pressure value according to the comparison result; and determining the preset threshold according to the target pressure value.

The water immersion information comprises information contents such as water immersion height and the like required by enabling water immersion fire extinguishing. The immersion height is the height of the liquid which is needed to be injected into the energy storage container when the energy storage container achieves the aim of fire extinguishment. The explosion venting information includes information content such as a pressure threshold value required to activate the explosion venting panel. The immersion height and the pressure threshold value may be set by simulation experiments or by empirical values.

The first pressure value refers to the pressure value from the energy storage container born by the cover plate of the ventilation device in the water immersion state. The second pressure value refers to the maximum pressure value from the energy storage container that the cover plate of the venting device is subjected to in the explosion venting state.

In a specific implementation, after determining a first pressure value corresponding to the water immersion state and a second pressure value corresponding to the explosion venting state of the ventilation device, the magnitudes of the first pressure value and the second pressure value can be compared. And determining the larger one of the two as a target pressure value, so as to determine a preset threshold value corresponding to the magnetic attraction force of the magnetic attraction module according to the target pressure value.

It can be seen that, in this example, by determining a larger value between the first pressure value and the second pressure value as the target pressure value for determining the preset threshold value, it is possible to ensure that the cover plate is not opened by the internal pressure impact even when the internal pressure of the energy storage container is maximum, and thus the reliability of the determined preset threshold value can be ensured.

In particular, when the energy storage container is provided with a plurality of ventilation devices (e.g., as shown in fig. 2), the following actions may be performed separately for the respective ventilation devices. In one possible example, the determining the first pressure value corresponding to the ventilation device according to the water immersion information and the installation position information includes: acquiring the soaking height and the soaking quantity according to the soaking information; determining the installation height of the ventilation device according to the installation position information; comparing the immersion height with the installation height to determine whether the ventilation device is immersed in a liquid; if yes, determining the first pressure value according to the installation height and the water immersion quantity; if not, determining that the first pressure value is zero.

Wherein, the water immersion amount can be directly recorded in the water immersion information. Alternatively, the immersion amount may be scaled according to the immersion height and the size of the energy storage container.

In the specific implementation, the immersion height and the immersion amount can be obtained firstly, the installation height of the installation position of the ventilation device relative to the energy storage container can be obtained according to the installation position information, and then the immersion height and the installation height are compared, so that whether the ventilation device enters the liquid or not can be determined. And when the ventilation device is determined to be immersed in the liquid, the first pressure value is directly determined according to the immersion quantity and the installation height, so that the efficiency is improved. If it is determined that the venting device is not immersed in the liquid, the first pressure value may be determined directly to be zero. It should be noted that, when it is determined that the ventilation device is not immersed in the liquid, the first pressure value is determined to be zero, and the pressure value from the energy storage container born by the cover plate of the ventilation device is not actually zero, but the cover plate of the ventilation device does not affect the water immersion effect when the ventilation device is not affected by the water pressure, so that the first pressure value is marked as zero, so that the influence on the magnitude of the preset threshold value is avoided.

Or in specific implementation, the immersion height relative to the energy storage container can be obtained according to the immersion information, the installation height of the installation position of the ventilation device relative to the energy storage container can be obtained according to the installation position information, and then the immersion height and the installation height are compared, so that whether the ventilation device enters the liquid or not can be determined. If it is determined that the ventilation device is immersed in the liquid, the amount of immersion water and the installation height may be retrieved to determine the first pressure value. If it is determined that the venting device is not immersed in the liquid, the first pressure value may be determined directly to be zero. Determining whether the ventilation device is immersed in the liquid may reduce the likelihood of acquiring redundant data (i.e., when not immersed) as compared to simultaneously acquiring the immersion height and the immersion amount, thereby improving the efficiency and accuracy of determining the first pressure value.

Specifically, the water immersion information also includes the density of the liquid. When the first pressure value is determined according to the immersion amount and the installation height, the water pressure required to be born by the installation position of the ventilating device can be calculated according to pascal's law, so that the water pressure is determined as the first pressure value.

It can be seen that, in this example, whether the ventilation device can receive the water pressure influence under the water logging state can be accurately determined through comparing the immersion height and ventilation device's installation height earlier to improve the accuracy of the first pressure value of determining.

In one possible example, the cover plate assembly includes a driving module and a cover plate, the driving module is used for driving the cover plate to rotate so as to conduct or close one end of the ventilation channel, which is away from the energy storage container, and the magnetic attraction module is used for adsorbing the cover plate; the determining the preset threshold according to the target pressure value comprises the following steps: acquiring a plurality of pre-installation positions of the magnetic attraction module, wherein the pre-installation positions are any positions surrounding the circumferential side surface of the cover plate; determining static tension of the driving module for the plurality of pre-installation positions, wherein the static tension is used for representing maximum tension of the driving module for the pre-installation positions in a non-running state of the ventilation device; determining the minimum value in the static tension corresponding to each of the plurality of pre-installation positions as a target tension value; and determining the preset threshold according to the target pressure value and the target tension value, and determining a pre-installation position corresponding to the target tension value as a target installation position of the magnetic module.

The pre-installation position can be a pre-selected position designed according to the structure of the ventilation device and used for installing the magnetic attraction module. The pre-installation position is set to be around any position of the circumferential side face of the cover plate, so that the installation of the magnetic module is facilitated, and the firmness of butt joint of the cover plate and the shell is guaranteed.

When the ventilation device is not operated, namely when the ventilation device is static, the cover plate is in limit connection with the driving module, so that the cover plate is prevented from rotating randomly. The static tension is used to indicate the limit tension (i.e., the maximum tension) of the driving module that the pre-installation position is subjected to.

Specifically, the magnetic module may be mounted to the housing to be attracted when the cover plate is covered. Alternatively, the adsorption module may be provided on the cover plate to be adsorbed to the housing when the cover is closed, which is not limited herein.

Specifically, in one possible example, the driving module includes a driving member and a rotating shaft; the determining the static tension of the driving module for the plurality of pre-installation positions includes: the following is performed for a single pre-installed location: acquiring a static acting force threshold of the driving piece for the rotating shaft, wherein the static acting force threshold is used for representing the maximum limiting force of the driving piece on the rotating shaft in the non-running state of the ventilation device; determining the distance between the pre-installation position and the rotating shaft; and determining the static tension corresponding to the pre-installation position according to the static acting force threshold and the distance.

Specifically, the static acting force threshold (namely, limit moment) of the driving piece for the rotating shaft is determined by the structural characteristics of the driving piece, and the driving piece can be directly called for acquisition.

Specifically, the distance relationship of each pre-installed location and the spindle may be stored in a database to be directly invoked for retrieval. Alternatively, each pre-installation position is provided with a distance sensor to measure the distance between the pre-installation position and the rotating shaft.

In the specific implementation, the static tension corresponding to the pre-installation position determined according to the static acting force threshold value and the distance is the limit acting force which can be born by the rotating shaft and the cover plate under the action of the driving piece. Specifically, it is known from the lever principle that:wherein M represents a static acting force threshold (namely a limit moment), F represents a limit acting force which can be born by the pre-installation position under the action of the tensile force of the driving piece and the rotating shaft, and L represents the distance between the pre-installation position and the rotating shaft. Because the internal pressure received by each pre-installation position is approximately the same under the influence of the internal pressure in the water immersion state or the explosion venting state, the pre-installation position corresponding to the minimum static tension can be determined as the target installation position, so that the cover plate can be ensured not to be opened under the action of the internal pressure.

In this example, under the action of the same target pressure value, the position corresponding to the minimum value of the static tension in the plurality of pre-installation positions is selected as the target installation position, that is, the position with the highest requirement on the magnetic attraction is determined as the target installation position, and the magnetic attraction module with the preset threshold determined according to the minimum value of the target pressure value and the minimum value of the static tension is arranged at the position, so that the reliability of the adsorption of the cover plate can be improved, the size of the magnetic attraction module can be reduced, and the cost corresponding to the magnetic attraction module is reduced.

Specifically, in one possible example, the determining the preset threshold according to the target pressure value and the target tension value includes: and determining a difference value between the target pressure value and the target tension value, and determining the difference value as the preset threshold value.

Specifically, as can be seen from the above description, the static tension corresponding to the target installation position is the smallest, and the internal pressures received by the respective pre-installation positions are approximately the same (i.e., the target pressure values), so that the difference between the target pressure value and the target tension value can be determined as a preset threshold, and at this time, the sum of the target value and the target tension value can be ensured to be greater than the target pressure value by the target value being greater than the preset threshold, thereby ensuring the adsorption strength of the cover plate.

It can be seen that, in the present example, the adsorption strength of the cover plate can be ensured by determining the difference between the target pressure value and the target pressure value as a preset threshold value, avoiding the cover plate from being opened under the impact of the target pressure value.

Therefore, in this example, the target installation position and the corresponding preset threshold value determined in the above manner can ensure the adsorption strength of the position with the weakest bearing capacity of the cover plate, so as to improve the stability of the cover plate integrally adsorbed on the shell, and thus, the internal pressure maintenance requirement of the energy storage container in the water immersion state and the explosion venting state can be met.

In one possible example, the method further comprises: receiving a target opening instruction from the main control module; adjusting the magnetic attraction force of the magnetic attraction module to zero according to the target opening instruction; and controlling the cover plate assembly to be opened according to the opening instruction so as to conduct one end of the ventilation channel, which is far away from the energy storage container.

In the specific implementation, when the ventilation device is required to be started to discharge abnormal gas in the energy storage container, the main control module can send a target opening instruction to the control module, and after the control module receives the target opening instruction, the magnetic attraction of the magnetic attraction module can be adjusted to zero, and the cover plate is opened by the control driving module, so that the conduction of the inner space and the outer space of the energy storage container is realized.

Specifically, if the magnetic attraction of the magnetic attraction module is zero in the non-energized state, the driving module can be directly controlled to open the cover plate. Or if the magnetic attraction force of the magnetic attraction module is not zero when the target opening instruction is received, the current passing through the magnetic attraction module can be controlled to adjust the magnetic attraction force of the magnetic attraction module to zero.

It can be seen that, in this example, the driving force for driving the cover plate to rotate by the driving module can be reduced by adjusting the magnetic attraction force of the magnetic attraction module to zero when the ventilation device is started, so that the energy consumption is reduced.

The composition structure of the electronic device in the application may be as shown in fig. 7, and the electronic device may be a main control module or a control module. The electronic device may comprise a processor 710, a memory 720, a communication interface 730, and one or more programs 721, wherein the one or more programs 721 are stored in the memory 720 and configured to be executed by the processor 710, the one or more programs 721 comprising instructions for performing any of the above-described method embodiments.

Wherein communication interface 730 is used to support communication between an electronic device and other devices. The processor 710 may be, for example, a central processing unit (CentralProcessingUnit, CPU), a general purpose processor, a digital signal processor (DigitalSignalProcessor, DSP), an Application-specific integrated circuit (Application-SpecificIntegratedCircuit, ASIC), a field programmable gate array (FieldProgrammableGateArray, FPGA) or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various exemplary logic blocks, units and circuits described in connection with the disclosure of embodiments of the present application. The processor may also be a combination that performs the function of a computation, e.g., a combination comprising one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

Memory 720 may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (programmableROM, PROM), an erasable programmable read-only memory (erasablePROM, EPROM), an electrically erasable programmable read-only memory (electricallyEPROM, EEPROM), or a flash memory, among others. The volatile memory may be Random Access Memory (RAM) which acts as an external cache. By way of example, and not limitation, many forms of Random Access Memory (RAM) are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (synchronousDRAM, SDRAM), double data rate synchronous DRAM (doubledatarateSDRAM, DDRSDRAM), enhanced synchronous DRAM (enhancedSDRAM, ESDRAM), synchronous link DRAM (synchlinkDRAM, SLDRAM), and direct memory bus RAM (directrambusRAM, DRRAM).

In particular implementations, the processor 710 is configured to perform any of the steps performed by the electronic device in the method embodiments described above, and when performing data transmission, such as sending, the communication interface 730 is optionally invoked to perform a corresponding operation.

It should be noted that the above schematic structural diagram of the electronic device is merely an example, and more or fewer devices may be specifically included, which is not limited only herein.

The present application may divide functional units of an electronic device according to the above method examples, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated in one processing unit. The integrated units may be implemented in hardware or in software functional units. It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice.

Fig. 8 is a functional unit block diagram of a first magnetic attraction control device for risk prevention and control of an energy storage container according to an embodiment of the present application. The first magnetic attraction control device 80 for risk prevention and control of the energy storage container comprises:

A receiving unit 810, configured to receive a target covering instruction from the main control module;

the control unit 820 is configured to control the cover plate assembly to close the ventilation channel according to the target covering instruction, and adjust the magnetic attraction of the magnetic attraction module to a target value, where the target value is greater than a preset threshold, the preset threshold is a magnetic attraction threshold for meeting a pressure maintenance requirement of the energy storage container in a water immersion state and an explosion venting state, the water immersion state is a state in which the energy storage container is activated to extinguish a fire in a water immersion mode, and the explosion venting state is a state in which the energy storage container is activated to vent abnormal gas in the energy storage container.

In one possible example, the preset threshold is determined by:

and determining the preset threshold according to the target pressure value.

the following is performed for a single pre-installed location:

if not, determining that the first pressure value is zero.

In one possible example, the receiving unit is further configured to receive a target opening instruction from the main control module; the control unit is also used for adjusting the magnetic attraction force of the magnetic attraction module to zero according to the target opening instruction; and controlling the cover plate assembly to be opened according to the opening instruction so as to conduct one end of the ventilation channel, which is far away from the energy storage container.

In the case of adopting an integrated unit, the functional unit composition block diagram of the second magnetic attraction control device for risk prevention and control of the energy storage container provided in the embodiment of the present application is shown in fig. 9. In fig. 9, a second magnetic attraction control device 90 for risk prevention and control of an energy storage container includes: a processing module 920 and a communication module 910. The processing module 920 is configured to control and manage actions of the first magnetic attraction control device for risk prevention and control of the energy storage container, e.g., steps performed by the receiving unit 810, the control unit 820, and/or other processes for performing the techniques described herein. The communication module 910 is configured to support interaction between the second magnetic attraction control device 90 and other devices for risk prevention and control of the energy storage container. As shown in fig. 9, the second magnetic control device 90 for risk prevention and control of an energy storage container may further include a storage module 930, where the storage module 930 is configured to store program codes and data of the second magnetic control device 90 for risk prevention and control of an energy storage container.

The processing module 920 may be a processor or controller, such as a central processing unit (CentralProcessingUnit, CPU), a general purpose processor, a digital signal processor (DigitalSignalProcessor, DSP), an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various exemplary logic blocks, modules and circuits described in connection with the disclosure of embodiments of the present application. The processor may also be a combination that performs the function of a computation, e.g., a combination comprising one or more microprocessors, a combination of a DSP and a microprocessor, and the like. The communication module 910 may be a transceiver, an RF circuit, or a communication interface, etc. The storage module 930 may be a memory.

All relevant contents of each scenario related to the above method embodiment may be cited to the functional description of the corresponding functional module, which is not described herein. The first magnetic attraction control device and the second magnetic attraction control device for risk prevention and control of the energy storage container can execute the steps in the magnetic attraction control method for risk prevention and control of the energy storage container shown in fig. 6.

The embodiment of the application also provides a computer storage medium, where the computer storage medium stores a computer program for electronic data exchange, where the computer program causes a computer to execute part or all of the steps of any one of the methods described in the embodiments of the method, where the computer includes a server.

It should be noted that, for simplicity of description, the foregoing method embodiments are all expressed as a series of action combinations, but it should be understood by those skilled in the art that the present application is not limited by the order of actions described, as some steps may be performed in other order or simultaneously in accordance with the present application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required in the present application.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, such as the above-described division of units, merely a division of logic functions, and there may be additional manners of dividing in actual implementation, such as multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, or may be in electrical or other forms.

The units described above as separate components may or may not be physically separate, and components shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units described above, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable memory. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a memory, including several instructions for causing a computer device (which may be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the above-mentioned method of the various embodiments of the present application. And the aforementioned memory includes: a U-disk, a Read-only memory (ROM), a random access memory (RAM, randomAccessMemory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.

Those of ordinary skill in the art will appreciate that all or a portion of the steps in the various methods of the above embodiments may be implemented by a program that instructs associated hardware, and the program may be stored in a computer readable memory, which may include: flash disk, read-only memory (ROM), random Access Memory (RAM), magnetic disk or optical disk.

The foregoing has outlined rather broadly the more detailed description of embodiments of the present application, wherein specific examples are provided herein to illustrate the principles and embodiments of the present application, the above examples being provided solely to assist in the understanding of the methods of the present application and the core ideas thereof; meanwhile, as those skilled in the art will have modifications in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.

Claims

1. The magnetic attraction control method for risk prevention and control of the energy storage container is characterized by being applied to a control module of a ventilation device in the energy storage system, wherein the energy storage system comprises a main control module, the energy storage container, the ventilation device and an explosion venting plate, the ventilation device comprises a shell, the control module, a fan module, a cover plate assembly and a magnetic attraction module, the shell is arranged on the energy storage container and is provided with a ventilation channel communicated with the energy storage container, the fan module is arranged in the ventilation channel, the cover plate assembly is connected with the shell and can rotate relative to the shell to conduct or close one end of the ventilation channel away from the energy storage container, and the magnetic attraction module is arranged on the shell and can adsorb the cover plate assembly;

The method comprises the following steps:

receiving a target covering instruction from the main control module;

2. The method of claim 1, wherein the preset threshold is determined by:

and determining the preset threshold according to the target pressure value.

3. The method of claim 2, wherein the cover plate assembly comprises a drive module and a cover plate, the drive module is used for driving the cover plate to rotate so as to conduct or close one end of the ventilation channel away from the energy storage container, and the magnetic attraction module is used for adsorbing the cover plate;

4. A method according to claim 3, wherein the drive module comprises a drive member and a spindle;

the following is performed for a single pre-installed location:

5. The method of claim 3 or 4, wherein said determining the preset threshold value from the target pressure value and the target tension value comprises:

6. The method of claim 2, wherein determining a first pressure value for the ventilation device based on the water immersion information and the installation location information comprises:

if not, determining that the first pressure value is zero.

7. The method of claim 1, wherein the method further comprises:

receiving a target opening instruction from the main control module;

8. The magnetic attraction control device for risk prevention and control of the energy storage container is characterized by comprising a control module applied to a ventilation device in the energy storage system, wherein the energy storage system comprises a main control module, the energy storage container, the ventilation device and an explosion venting plate, the ventilation device comprises a shell, the control module, a fan module, a cover plate assembly and a magnetic attraction module, the shell is mounted on the energy storage container and is provided with a ventilation channel communicated with the energy storage container, the fan module is mounted in the ventilation channel, the cover plate assembly is connected with the shell and can rotate relative to the shell to conduct or close one end of the ventilation channel away from the energy storage container, and the magnetic attraction module is mounted on the shell and can adsorb the cover plate assembly;

9. An electronic device comprising a processor, a memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in the method of any of claims 1-7.

10. A computer-readable storage medium, characterized in that a computer program for electronic data exchange is stored, wherein the computer program causes a computer to perform the steps in the method according to any one of claims 1-7.