Battery device water injection system

Abstract

The present invention relates to a battery device water injection system and, more specifically, to a battery device water injection system that enables efficient fire suppression by: forcibly discharging gas generated from a battery module to the outside when the temperature of the battery module rises, so as to enable rapid fire detection before the occurrence of thermal runaway; and injecting fire-extinguishing water through a water injection port in a module housing that accommodates the battery module, and simultaneously discharging fire-extinguishing water through a discharge port at the upper end of the module housing, so as to keep supplying fresh fire-extinguishing water while maintaining the battery module in a fully submerged state without the need for additional equipment or control.

Description

Battery device injection system

[0001] The present invention relates to a battery device water injection system, and more particularly, to a battery device water injection system that detects a fire by forcibly discharging gas generated from a battery module to the outside when the temperature of the battery module rises, thereby enabling rapid fire detection before a thermal runaway phenomenon occurs, and that injects fire extinguishing water through a water injection port of a module housing in which a battery module is accommodated and discharges the fire extinguishing water through a discharge port at the top of the module housing, thereby enabling the battery module to be completely submerged without the need for separate equipment and control while allowing new fire extinguishing water to be supplied, thereby enabling efficient fire suppression.

[0002] With the increase in eco-friendly power generation such as solar and wind power, the use of battery devices such as ESS to store generated power is also rapidly increasing.

[0003] Typically, battery devices are configured by connecting battery cells in series and parallel to form battery modules, stacking the battery modules within a battery rack, and installing multiple battery racks together in a certain space.

[0004] In these battery devices, if an abnormality such as a short circuit occurs in some battery cells and the temperature continuously rises, causing the temperature of the battery cells to exceed the critical temperature, a thermal runaway phenomenon occurs, and if a fire occurs due to the thermal runaway phenomenon occurring in some battery cells, this can rapidly increase the temperature of adjacent battery cells, causing the thermal runaway phenomenon to spread to adjacent cells in a short period of time.

[0005] Ultimately, if the thermal runaway phenomenon occurring in some battery cells is not quickly addressed, it may lead to disasters such as fire or explosion of the battery module or battery rack where the battery cells are assembled.

[0006] Accordingly, a fire suppression method that injects fire extinguishing water into the battery module and floods it, as in the patent document below, is being used, but it is difficult to quickly detect and suppress a fire, and there are problems such as requiring separate sensors and valves to lower the temperature of the fire extinguishing water, making normal operation difficult in the event of a fire, and making it difficult to maintain the water level inside the battery module at a normal level.

[0007] (Patent Document) Patent Publication No. 10-2529018 (registered on April 28, 2023) "Freshwater Battery Pack Fire Extinguishing Device"

[0008] The present invention has been devised to solve the above problems.

[0009] The purpose of the present invention is to provide a battery device injection system that detects fire by forcibly discharging gas generated from a battery module to the outside when the temperature of the battery module rises, thereby enabling rapid fire detection before a thermal runaway phenomenon occurs.

[0010] The purpose of the present invention is to provide a battery device injection system that can prevent secondary fires and accidents caused by gas by simultaneously discharging gas generated from a battery module to a fire detection unit and discharging it outside the space where the battery pack is housed.

[0011] The purpose of the present invention is to provide a battery device water injection system that enables efficient fire suppression by injecting fire extinguishing water through a water inlet of a module housing that accommodates a battery module and discharging the fire extinguishing water through a discharge port at the top of the module housing, thereby allowing the battery module to be completely submerged without separate equipment and control and supplying new fire extinguishing water.

[0012] The purpose of the present invention is to provide a battery device injection system that enables faster fire detection by detecting fire through gas discharged from a battery module at the top of a pipe communicating with a discharge port.

[0013] The purpose of the present invention is to provide a battery device water injection system that automatically closes the air conditioning unit of a module housing by the fire extinguishing water injected into the module housing, thereby preventing the outflow of the fire extinguishing water and maintaining the battery module in a completely submerged state.

[0014] The purpose of the present invention is to provide a battery device water injection system that automatically sprays fire extinguishing water on a battery module in which a fire has occurred due to destruction of a glass valve caused by a rise in temperature within the battery module, thereby enabling efficient and rapid fire extinguishment and minimizing damage to the battery module.

[0015] The purpose of the present invention is to provide a battery device injection system that can check the operation of each component of the system when a fire is detected by gas or temperature, so that the operation of each of the injection unit, gas discharge unit, fire detection unit, and temperature measurement system can be quickly checked at once.

[0016] In order to achieve the above-mentioned purpose, the present invention is implemented by an embodiment having the following configuration.

[0017] According to one embodiment of the present invention, a battery device injection system according to the present invention includes a module housing for accommodating each battery module, an injection unit for injecting fire extinguishing water into each module housing when a fire occurs, a gas discharge unit for discharging gas generated within a battery module, a fire detection unit for detecting fire occurrence due to gas generated within a battery module, and a control unit for controlling the operation of the injection system, wherein the control unit is characterized in that it operates the gas discharge unit when the temperature of the battery device exceeds a set temperature, thereby promoting detection of fire occurrence through the fire detection unit.

[0018] According to another embodiment of the present invention, in the battery device injection system according to the present invention, the control unit is characterized by including a temperature information monitoring module that monitors temperature information of the battery device, a gas discharge operation module that initiates operation of the gas discharge unit when the temperature of the battery device exceeds a set temperature, a detection information receiving module that receives information that a fire is detected through the fire detection unit, and a injection operation module that operates the injection unit when fire detection information is received by the detection information receiving module or the temperature of the battery device exceeds a fire occurrence temperature.

[0019] According to another embodiment of the present invention, in the battery device main system according to the present invention, the gas discharge unit is characterized by including a rack fan that discharges gas generated within the battery module toward the fire detection unit, and an external fan that discharges gas passing through the rack fan to the outside of a space where the battery rack is accommodated.

[0020] According to another embodiment of the present invention, in the battery device injection system according to the present invention, the module housing includes a injection port through which fire extinguishing water is supplied from the injection unit into the module housing, and a discharge port formed through a point at the top of the module housing to discharge fire extinguishing water within the module housing, and the fire detection unit is characterized in that it is connected to the top of a pipe connected to the discharge port of each battery module so as to detect a fire through gas generated within the battery module.

[0021] According to another embodiment of the present invention, in the battery device injection system according to the present invention, the module housing includes an air conditioning unit that supplies air to the battery module to control the temperature, the air conditioning unit includes an inlet housing that forms a passage for introducing air and has a through-hole through which air is introduced from the bottom to a certain height; an opening / closing ball formed at the bottom of the inlet housing and rising in accordance with the injection of fire extinguishing water into the module housing; and an inlet fan that allows air to be introduced through the inlet housing; wherein the opening / closing ball rises in accordance with the injection of fire extinguishing water and is fitted into the inlet housing at the top of the through-hole to block the fire extinguishing water from being discharged to the outside through the inlet housing.

[0022] According to another embodiment of the present invention, in the battery device water injection system according to the present invention, the water injection unit includes a water injection pipe formed vertically along the rear surface of the battery rack to form a passage through which fire extinguishing water is supplied to the water injection port of each battery module, a water storage tank for storing the fire extinguishing water supplied to the water injection pipe, a supply module for supplying the fire extinguishing water in the water storage tank through the water injection pipe, and an injection module formed to be connected to the water injection port and for injecting the fire extinguishing water into the battery module, wherein the injection module includes a sprinkler inserted into a module housing through the water injection port to spray the fire extinguishing water; and a glass valve for blocking the sprinkler and being destroyed when a temperature exceeds a certain level to allow the fire extinguishing water to be sprayed through the sprinkler.

[0023] According to another embodiment of the present invention, in the battery device injection system according to the present invention, the control unit includes an operation inspection unit that inspects the operation status of the injection system, and the operation inspection unit includes a gas standard inspection unit that inspects the operation status according to gas generation, and a temperature standard inspection unit that inspects the operation status according to temperature.

[0024] According to another embodiment of the present invention, in the battery device injection system according to the present invention, the gas reference inspection unit is characterized by including a fire detection receiving module that receives fire detection information by the fire detection unit, an injection operation confirmation module that confirms whether the gas discharge unit is operating when a fire is detected, a temperature information confirmation module that confirms temperature information of a battery module when the gas discharge unit is not operating, an injection abnormality notification module that notifies an abnormality of the gas discharge unit when the temperature of the battery module exceeds a set temperature at which the gas discharge unit operates but the gas discharge unit is not operating, a temperature abnormality notification module that instructs confirmation of an abnormality in temperature measurement when the temperature of the battery module does not exceed the set temperature or the temperature is not confirmed as a result of the temperature information confirmation, a injection operation confirmation module that confirms the operation of the injection unit when a fire is detected, and an injection abnormality notification module that notifies an abnormality of the injection unit when the supply of fire extinguishing water by the injection unit is not performed.

[0025] According to another embodiment of the present invention, in the battery device injection system according to the present invention, the temperature reference inspection unit is characterized by including a temperature information receiving module for receiving temperature information of a battery module, a gas discharge confirmation module for confirming the operation of a gas discharge unit when a temperature that can be determined as a fire occurrence is exceeded, an exhaust failure notification module for notifying a failure of the gas discharge unit when the gas discharge unit does not operate, a fire detection confirmation module for confirming the detection of a fire by a fire detection unit, a detection abnormality notification module for determining that there is a problem with the fire detection unit when a fire is not detected by the fire detection unit and notifying this, a injection confirmation module for confirming whether the injection unit is operating, and a injection failure notification module for determining that there is a problem with the injection unit when the injection unit does not operate and notifying this.

[0026] The present invention can obtain the following effects through the combination and use of the configuration described above and the following examples.

[0027] The present invention has the effect of enabling rapid fire detection before a thermal runaway phenomenon occurs by forcibly discharging gas generated in a battery module to the outside when the temperature of the battery module rises to detect a fire.

[0028] The present invention has the effect of preventing secondary fires and accidents caused by gas by discharging gas generated from a battery module to a fire detection unit and simultaneously discharging it outside the space where the battery pack is housed.

[0029] The present invention has the effect of enabling efficient fire suppression by allowing new fire water to be supplied while maintaining the battery module in a completely submerged state without separate equipment or control by injecting fire extinguishing water through the inlet of the module housing in which the battery module is accommodated and discharging the fire extinguishing water through the discharge port at the top of the module housing.

[0030] The present invention has the effect of enabling faster detection of fire by detecting fire through gas discharged from a battery module at the top of a pipe communicating with a discharge port.

[0031] The present invention has the effect of automatically closing the air conditioning unit of the module housing by the fire extinguishing water injected into the module housing, thereby preventing the fire extinguishing water from leaking out and maintaining the battery module in a completely submerged state.

[0032] The present invention has the effect of enabling efficient and rapid fire extinguishing and minimizing damage to the battery module by automatically spraying fire extinguishing water on the battery module in which a fire has occurred due to destruction of the glass valve as the temperature inside the battery module rises.

[0033] The present invention has the effect of enabling the operation of each component of the system to be checked when a fire is detected by gas or temperature, thereby enabling the operation of each of the main unit, gas discharge unit, fire detection unit, and temperature measurement system to be checked quickly and at once.

[0034] Figure 1 is a reference drawing showing an example of installation of a battery device.

[0035] Figure 2 is a configuration diagram of a fire extinguishing water supply system of a battery device main system according to one embodiment of the present invention.

[0036] Figure 3 is a rear view of the battery device (a), a cross-sectional view (b) taken along line A-A' of the rear view, and an enlarged view of B.

[0037] Figure 4 is a configuration diagram of the module housing (a) and a front view of the inlet housing (b).

[0038] Figure 5 is a reference diagram showing the process of supplying and discharging fire extinguishing water to the module housing.

[0039] Figure 6 is a rear view of the module housing (a) and a reference drawing (b) showing the discharge status of fire extinguishing water and gas through the discharge port.

[0040] Figure 7 is a reference diagram showing the configuration and operating status of the gas discharge unit.

[0041] Figure 8 is a block diagram showing the configuration of the control unit.

[0042] Figure 9 is a block diagram showing the configuration of the fire suppression unit.

[0043] Figure 10 is a block diagram showing the configuration of the gas standard inspection unit.

[0044] Figure 11 is a block diagram showing the configuration of the temperature reference inspection unit.

[0045] * Explanation of symbols used in drawings

[0046] 1: Main water supply 11: Reservoir 12: Supply module

[0047] 13: Injection pipe 14: Injection module 141: Sprinkler

[0048] 142: Glass valve 2: Module housing 21: Air conditioning unit

[0049] 211: Inlet housing 211a: Through hole 212: Opening ball

[0050] 213: Inlet fan 22: Inlet 23: Outlet

[0051] 3: Gas discharge port 31: Pipe 32: Rack fan

[0052] 33: External fan 4: Fire detection unit 5: Control unit

[0053] 51: Fire suppression department 52: Operation inspection department 521: Gas standard inspection department

[0054] 522: Temperature Standard Inspection Department

[0055] 100: Battery module 200: Battery rack W: Fire extinguishing water

[0056] Hereinafter, preferred embodiments of a battery device injection system according to the present invention will be described in detail with reference to the attached drawings. In the following description of the present invention, if a detailed description of a known function or configuration is determined to unnecessarily obscure the gist of the present invention, the detailed description will be omitted. Throughout the specification, when a part is said to "include" a certain component, this does not mean that other components are excluded, but rather that other components can be further included, unless specifically stated otherwise. In addition, terms such as "... part", "... module", etc. described in the specification mean a unit that processes at least one function or operation, and this can be implemented by hardware, software, or a combination of hardware and software.

[0057]

[0058] Referring to FIGS. 1 to 11, a battery device injection system according to one embodiment of the present invention includes a module housing (2) that accommodates a battery module, an injection unit (1) that injects fire extinguishing water into each module housing (2) when a fire occurs, a gas discharge unit (3) that discharges gas generated within a battery module (100), a fire detection unit (4) that detects a fire caused by gas generated within a battery module (100), and a control unit (5) that regulates the operation of the injection system.

[0059] The above battery device water supply system relates to a system that supplies fire extinguishing water in the event of a fire in the battery device to extinguish the fire. As illustrated in FIG. 1, the battery device may include a battery module (100) in which a plurality of cells are connected in series or parallel to store power, and a battery rack (200) in which the battery modules (100) are vertically stacked and accommodated. At this time, a plurality of battery racks (200) in which the battery modules (100) are accommodated may be accommodated in a closed space to minimize the influence of the external environment and to ensure stable storage and supply of power.

[0060] In particular, the battery device water supply system supplies fire extinguishing water to each vertically stacked battery module (100) to submerge the battery module (100) so as to enable effective fire extinguishing, and discharges and supplies fire extinguishing water while the battery module (100) is completely submerged to lower the temperature of the fire extinguishing water, thereby effectively suppressing fire and preventing battery thermal runaway.

[0061] In addition, the battery device main system operates the gas discharge unit (3) when the battery module (100) rises above a certain temperature to forcibly discharge the gas generated from the battery module (100), and detects a fire using the forcibly discharged gas, thereby enabling rapid and accurate detection of a fire.

[0062] The above-mentioned main water supply unit (1) is configured to supply fire extinguishing water to the battery modules (100) in the event of a fire to extinguish the fire, and supplies fire extinguishing water to each battery module (100) where a fire has occurred to submerge the battery modules (100). To this end, the main water supply unit (1) may include a reservoir (11), a supply module (12), a main water supply pipe (13), and an injection module (14).

[0063] The above reservoir (11) is configured to store fire extinguishing water, and a certain space may be formed outside the battery rack (200) to store the fire extinguishing water. In this case, water is preferably used as the fire extinguishing water, but various liquid substances capable of being extinguished may also be used.

[0064] The above supply module (12) is configured to supply fire fighting water stored in a reservoir (11) to a battery module (100), and can be formed with a pump, a pressure gauge, etc. to supply fire fighting water to the battery module (100) at a constant pressure.

[0065] The above-mentioned water supply pipe (13) is configured to form a passage through which fire extinguishing water is supplied to the battery module (100), is connected to the water tank (11) to receive fire extinguishing water, and can be formed vertically along the rear of the battery rack (200). The above-mentioned water supply pipe (13) is formed to be connected to the water supply port (22) of each module housing (2) in which the battery module (100) is accommodated, and an injection module (14) is formed at each point connected to the water supply port (22) to allow fire extinguishing water to be injected into each module housing (2).

[0066] The above injection module (14) is formed at each point where the injection pipe (13) and the injection port (22) of each module housing (2) are connected, and is configured to inject fire extinguishing water into the module housing (2), and may include a sprinkler (141) and a glass valve (142) as shown in Fig. 3(c).

[0067] The above sprinkler (141) is configured to spray fire extinguishing water into the module housing (2), and can spray fire extinguishing water at a constant speed through the spray nozzle. Normally, it is closed by the glass valve (142), but when the glass valve (142) is damaged due to high temperature, it opens to allow fire extinguishing water to be injected into the module housing (2).

[0068] The above glass valve (142) is configured to block the sprinkler (141), and is formed to block the outlet through which fire extinguishing water is injected into the module housing (2) from the sprinkler (141). The glass valve (142) is formed of a material that is destroyed at a certain temperature or higher, so that when a fire occurs, it is automatically destroyed, thereby allowing fire extinguishing water to be injected into the module housing (2) where the fire occurred. The glass valve (142) can be formed to be automatically destroyed at a temperature high enough to be certain that a fire has occurred, thereby preventing accidental damage and enabling the fire to be quickly extinguished without separate operation.

[0069] The above module housing (2) is configured to accommodate a battery module (100), and is formed in a number corresponding to the number of battery modules (100) and vertically stacked while accommodating each battery module (100) in a sealed space. Air for temperature control is introduced into the module housing (2) so that the battery module (100) can maintain a constant temperature as much as possible, and in the event of a fire, fire extinguishing water is supplied through the water inlet (1) so that the battery module (100) can be completely immersed in the fire extinguishing water. In addition, the fire extinguishing water supplied to the module housing (2) is discharged at a certain height so that it is continuously replaced with new fire extinguishing water, thereby lowering the temperature of the fire extinguishing water. To this end, the module housing (2) may include an air conditioning unit (21), a water inlet (22), and an outlet (23).

[0070] The above air conditioning unit (21) is configured to supply air for temperature control within the module housing (2), and can be formed on one side of the module housing (2) to supply air for cooling or heating. In particular, the air conditioning unit (21) has a unique structure to block the escape of fire extinguishing water (W), thereby allowing the battery module (100) to be completely immersed in the fire extinguishing water (W), thereby enhancing the fire suppression effect. To this end, the air conditioning unit (21) may include an inlet housing (211), an opening / closing ball (212), and an inlet fan (213), as illustrated in FIG. 4.

[0071] The above inlet housing (211) is configured to form a space into which air for temperature control is introduced, and can be formed to form a space whose cross-sectional area increases from the top to the bottom on one side of the module housing (2). The upper end of the inlet housing (211) is connected to the outside of the module housing (2) so that air for temperature control can be introduced, and the lower end accommodates the opening / closing ball (212). In addition, a through hole (211a) is formed through a certain height on the inlet housing (211) so that air for temperature control can be supplied into the interior of the module housing (2). Accordingly, in normal times, air for temperature control is introduced into the module housing (2) through the through hole (211a), and when a fire occurs, when fire extinguishing water (W) is injected into the module housing (2), the opening / closing ball (212) rises as shown in Fig. 5 to close the inlet housing (211), thereby preventing the fire extinguishing water (W) inside the module housing (2) from escaping to the outside through the air conditioning unit (21).

[0072] The above-mentioned opening / closing ball (212) is configured to be accommodated inside the inlet housing (211), is normally located at the bottom of the inlet housing (211), and rises in response to the injection of fire extinguishing water (W) into the module housing (2) to close the inlet housing (211). The opening / closing ball (212) may have a cross-sectional shape corresponding to the internal cross-section of the inlet housing (211), and may be formed in the shape of a sphere when the inlet housing (211) has a circular internal cross-section. In addition, the opening / closing ball (212) is formed in a size that can be fitted into the inside of the inlet housing (211) at the upper end where the through-hole (211a) is formed, thereby blocking the fire extinguishing water (W) from escaping through the through-hole (211a).

[0073] The above-mentioned intake fan (213) is configured to introduce air for temperature control through the intake housing (211), and is formed at the top of the intake housing (211) that is connected to the outside of the module housing (2) so that air for temperature control can be introduced into the module housing (2) as it rotates.

[0074] The above-mentioned injection port (22) is configured to form a passage through which fire extinguishing water (W) is injected into the module housing (2), and may preferably be formed to penetrate a point at the rear of the module housing (2). The above-mentioned injection port (22) is connected to the injection pipe (13) to receive the fire extinguishing water (W), and an injection module (14) is formed to enable the injection of the fire extinguishing water (W) into the module housing (2).

[0075] The above discharge port (23) is configured to form a passage through which the fire extinguishing water (W) inside the module housing (2) is discharged, and may preferably be formed to penetrate a point at the rear of the module housing (2), and may be formed on the opposite side to the water inlet (22) as illustrated in Fig. 6(a). In particular, the discharge port (23) is formed at a position higher than the top of the battery module (100) so that the battery module (100) can be maintained in a completely submerged state, and the fire extinguishing water (W) injected through the water inlet (22) is discharged through the discharge port (23) so that new fire extinguishing water (W) at a low temperature is continuously supplied inside the module housing (2), thereby enabling effective fire suppression and prevention of thermal runaway. The above discharge port (23) is connected to a pipe pipe (31) to be described later so that the fire extinguishing water (W) discharged from the module housing (2) can be discharged to the outside through the pipe pipe (31), and as shown in Fig. 6(b), gas generated from the battery module (100) is discharged through the discharge port (23) and transmitted to the fire detection unit (4) through the pipe pipe (31), so that rapid fire detection can be achieved.

[0076] Referring to Fig. 5, the process of injecting fire extinguishing water (W) into the above module housing (2) for extinguishing will be described. When fire extinguishing water (W) is injected through the inlet (22), the opening / closing ball (212) rises as shown in Fig. 5(a) to block the through hole (211a) and prevent the fire extinguishing water (W) from escaping through the inlet housing (211). Then, as the fire extinguishing water (W) continues to be injected through the inlet (22), the water level rises, and as shown in Fig. 5(b), the battery module (100) is completely submerged, and eventually, as shown in Fig. 5(c), the water level of the fire extinguishing water (W) rises to the discharge port (23) and is discharged through the discharge port (23). Through this, the fire extinguishing water (W) inside the module housing (2) is continuously discharged and newly supplied, thereby lowering the temperature, and during this process, the battery module (100) is maintained in a state completely immersed in the fire extinguishing water (W). Therefore, this system can lower the temperature of the fire extinguishing water (W) while maintaining the battery module (100) in a state immersed in the fire extinguishing water (W) simply by continuously supplying the fire extinguishing water (W) without a separate operation, thereby preventing thermal runaway of the battery module (100) and ensuring effective fire extinguishing.

[0077] The above gas discharge unit (3) is configured to forcibly discharge gas generated from the battery module (100), and is activated when the temperature of the battery module (100) rises above a certain temperature, thereby enabling rapid fire detection. When detecting a fire by temperature and / or gas, it is necessary to set a fairly high temperature and gas amount as the standard to prevent false detection of the fire, making rapid fire detection difficult. In particular, in the case of gas, it takes a certain amount of time for it to reach the fire detection unit (4), which makes rapid fire detection even more difficult. In particular, the battery module (100) has a risk of explosion due to thermal runaway when a fire occurs, and if it waits until the temperature and gas generation amount are sufficiently high, the risk of explosion increases rapidly. Therefore, in the present system, when the temperature of the battery module (100) rises above a certain level, the gas discharge unit (3) is activated to forcibly move the gas generated from the battery module (100) to the fire detection unit (4), thereby enabling rapid fire detection. In addition, the gas generated from the battery module (100) is discharged to the outside from the internal space where the battery rack (200) is accommodated, thereby preventing secondary accidents caused by the gas. To this end, the gas discharge unit (3) may include a piping pipe (31), a rack fan (32), and an external fan (33), as illustrated in FIG. 7.

[0078] The above pipe pipe (31) is configured to form a passage through which gas generated from the battery module (100) is discharged, and is formed along the rear of the battery rack (200) so as to be connected to the discharge port (23) of each module housing (2). Accordingly, gas generated within each module housing (2) is discharged through the pipe pipe (31), and the rack fan (32) is formed at the top of the pipe pipe (31) so as to forcibly discharge the gas within the module housing (2) to the top of the battery rack (200). A fire detection unit (4) is formed at the top of the pipe pipe (31) so as to enable fire detection through gas, and rapid fire detection can be achieved by forcibly discharging the gas through the rack fan (32). The pipe pipe (31) is formed to extend to the outside so as to enable gas to be discharged to the outside. In addition, since the above-mentioned pipe (31) is connected to the discharge port (23), the fire extinguishing water (W) injected into the module housing (2) is discharged, and the lower end thereof is extended to the outside so that the fire extinguishing water (W) can be discharged to the outside.

[0079] The above rack fan (32) is formed on the pipe pipe (31) and is configured to forcibly discharge gas generated from the battery module (100). Preferably, it is formed on the upper part of the pipe pipe (31) so that gas is discharged toward the fire detection unit (4) according to its rotation. The rack fan (32) operates when the temperature of the battery module (100) rises above a certain temperature, thereby allowing gas generated from the battery module (100) to quickly reach the fire detection unit (4), thereby enabling rapid detection of a fire.

[0080] The above external fan (33) is configured to discharge gas generated from the battery module (100) to the outside, and is formed on a pipe (31) extending to the outside from the point where the fire detection unit (4) is formed, so that gas is discharged to the outside. The above external fan (33) can be made to operate automatically simultaneously with the rack fan (32), and immediately discharges gas generated by a fire to the outside, thereby preventing secondary accidents caused by gas, fire, etc.

[0081] The above fire detection unit (4) is configured to detect a fire occurring in a battery module (100), and can detect the fire using gas generated by the fire. The above fire detection unit (4) is formed to be connected to the upper end of a pipe (31), and can detect the fire using gas forcibly discharged by a rack fan (32), thereby enabling more rapid detection of the fire.

[0082] The above control unit (5) is a component that controls the operation of the system, and can control the injection of fire extinguishing water through fire detection and check the operating status of each component of the system. To this end, the control unit (5) may include a fire suppression unit (51) and an operation inspection unit (52).

[0083] The above fire suppression unit (51) is configured to control the injection of fire extinguishing water through fire detection. When the battery module (100) reaches a certain temperature, the gas discharge unit (3) is activated to enable rapid fire detection, and when a fire is detected, the fire extinguishing unit (1) supplies fire extinguishing water to enable effective fire extinguishing. To this end, the fire suppression unit (511) may include a temperature information monitoring module (511), a gas discharge operation module (512), a detection information receiving module (513), and a water injection operation module (514).

[0084] The above temperature information monitoring module (511) is configured to detect the temperature of the battery module (100), and can receive temperature information measured through a temperature sensor formed in the battery module (100) to enable real-time monitoring.

[0085] The above gas discharge operation module (512) is configured to operate the gas discharge unit (3) when the temperature of the battery module (100) monitored by the temperature information monitoring module (511) exceeds a set temperature, thereby forcibly discharging the gas inside the module housing (2) toward the fire detection unit (4) to enable rapid detection of a fire. Here, the temperature at which the gas discharge unit (3) is set to operate is set to a lower temperature than a high temperature at which a fire is certain to occur, and for example, it can be set to a middle value between the temperature when a fire occurs and the normal temperature.

[0086] The above detection information receiving module (513) is configured to receive fire detection information from the fire detection unit (4), and when a fire is detected, it operates the fire main unit (1) by the fire main operation module (514).

[0087] The above-mentioned water injection operation module (514) operates the water injection unit (1) to inject fire extinguishing water into the battery module (100), and can be configured to operate automatically when fire detection information is received by the detection information reception module (513). The water injection operation module (514) operates the supply module (12) to supply fire extinguishing water through the water injection pipe (13), and in the battery module (100) where a fire has occurred, the glass valve (142) of the module housing (2) is destroyed, so that the fire extinguishing water is automatically injected only into the battery module (100) where a fire has occurred. Therefore, the present system can inject fire extinguishing water only into the battery module (100) where a fire has occurred without a separate operation, thereby enabling accurate and efficient fire extinguishing and minimizing damage to the battery module (100) where a fire has not occurred. In addition, the above-mentioned main operation module (514) can operate the main operation module (1) when the temperature information monitoring module (511) detects that the temperature of the battery module (100) rises to the temperature at the time of fire even if the fire detection unit (4) does not detect a fire, thereby enabling the fire in the battery module (100) to be detected and automatically extinguished even if the fire detection unit (4) does not operate normally.

[0088] The above operation inspection unit (52) is a component that checks the operation status of each component of the system, and can check the operation status of the gas discharge unit (3), fire detection unit (4), water main unit (1), and temperature information monitoring module (511). Therefore, the operation inspection unit (52) can quickly recognize and notify an abnormal state in which each component does not operate normally, thereby enabling a quick response to the abnormal state. In particular, the operation inspection unit (52) can automatically check the operation status of all components of the gas discharge unit (3), fire detection unit (4), water main unit (1), and temperature information monitoring module (511) when a fire caused by gas is detected by the fire detection unit (4) or when the temperature of the battery module (100) is detected to have risen to the temperature at which a fire occurred by the temperature information monitoring module (511). For this purpose, the operation inspection unit (52) may include a gas standard inspection unit (521) and a temperature standard inspection unit (522).

[0089] The above gas standard inspection unit (521) is configured to check the operating status of each other component when a fire is detected by the fire detection unit (4) through gas, and can check whether the gas discharge unit (3), temperature information monitoring module (511), and water supply unit (1) are operating normally. To this end, the gas standard inspection unit (521) may include a fire detection receiving module (521a), a discharge operation confirmation module (521b), a temperature information confirmation module (521c), a discharge abnormality notification module (521d), a temperature abnormality notification module (521e), a water supply operation confirmation module (521f), and a water supply abnormality notification module (521g).

[0090] The above fire detection receiving module (521a) is configured to receive fire detection information from the fire detection unit (4), and receives fire information detected according to gas generation from the battery module (100).

[0091] The above discharge operation confirmation module (521b) is configured to confirm whether the gas discharge unit (3) is operating, and when fire detection information is received by the fire detection receiving module (521a), it confirms whether the gas discharge unit (3) is operating normally. The control unit (5) first operates the gas discharge unit (3) when the temperature of the battery module (100) rises above the set temperature, thereby enabling rapid fire detection. Therefore, when a fire is detected by the fire detection unit (4), it is possible to first confirm whether the gas discharge unit (3) is operating, and thus confirm whether the gas discharge unit (3) is operating normally.

[0092] The above temperature information confirmation module (521c) is configured to confirm the temperature of the battery module (100) monitored by the temperature information monitoring module (511). If the gas discharge unit (3) is not operating as confirmed by the discharge operation confirmation module (521b), the temperature information of the battery module (100) is checked to determine whether there is a malfunction in the gas discharge unit (3) or a malfunction in the temperature information monitoring module (511). In other words, if a fire is detected but the gas discharge unit (3) is not operating, it may be because there is a malfunction in the gas discharge unit (3) or the temperature monitoring is not performed properly. Therefore, the temperature is checked to determine the configuration in which the abnormality occurred.

[0093] The above-mentioned emission abnormality notification module (521d) is configured to notify that an abnormality has occurred in the gas discharge unit (3). If the temperature information confirmation module (521c) confirms that the temperature has exceeded the set temperature at which the gas discharge unit (3) operates, it determines that an abnormality has occurred in the operation of the gas discharge unit (3) and notifies the user of this.

[0094] The above temperature abnormality notification module (521e) is configured to notify that an abnormality has occurred in the temperature measurement system. If the temperature does not exceed the set temperature at which the gas discharge unit (3) operates or the temperature is not confirmed as a result of the confirmation by the temperature information confirmation module (521c), it determines that an abnormality has occurred in the temperature information monitoring module (511), temperature sensor, etc. and notifies the user of this.

[0095] The above-mentioned main water operation confirmation module (521f) is configured to confirm whether the main water unit (1) is operating, and when fire detection information is received by the fire detection receiving module (521a), it confirms whether the main water unit (1) is operating normally. The above-mentioned main water operation confirmation module (521f) can confirm whether the supply module (12) is operating or can measure the flow rate of fire extinguishing water flowing through the main water pipe (13) to confirm whether it is operating.

[0096] The above-mentioned main water abnormality notification module (521g) is configured to notify when the main water unit (1) is not operating as confirmed by the main water operation confirmation module (521f). In this way, when a fire is detected by the fire detection unit (4) but extinguishing water is not supplied, it immediately confirms and notifies this, thereby enabling a quick response even if an abnormality occurs in the main water unit (1).

[0097] The above temperature reference inspection unit (522) is configured to check the operation of each component when the temperature of the battery module (100) reaches the temperature at which a fire occurs when the temperature information monitoring module (511) detects that the temperature has reached the temperature at which a fire has occurred. Since the injection operation module (514) operates not only when gas is detected by the fire detection unit (4) but also when the temperature of the battery module (100) reaches the temperature at which a fire has occurred, the operation status of each component can be checked even when a failure of the fire detection unit (4) occurs. To this end, the temperature reference inspection unit (522) may include a temperature information receiving module (522a), a gas discharge confirmation module (522b), a discharge failure notification module (522c), a gas detection confirmation module (522d), a detection abnormality notification module (522e), a injection confirmation module (522f), and a injection failure notification module (522g).

[0098] The above temperature information receiving module (522a) is configured to receive temperature information of a battery module (100) monitored by a temperature information monitoring module (511), and can receive the corresponding temperature information when the temperature of the battery module (100) reaches a temperature set to operate the main operation module (514) when it is determined that a fire has occurred.

[0099] The above gas discharge confirmation module (522b) is configured to confirm whether the gas discharge unit (3) is operating, and when information that the temperature of the battery module (100) has reached the fire occurrence temperature is received by the temperature information receiving module (522a), it can confirm whether the gas discharge unit (3) is operating.

[0100] The above-mentioned exhaust failure notification module (522c) is configured to notify of a failure of the gas exhaust unit (3), and if the gas exhaust unit (3) is not operating as confirmed by the gas exhaust confirmation module (522b), it determines that the gas exhaust unit (3) is broken and notifies of this. In other words, since the gas exhaust unit (3) is set to operate by the gas exhaust operation module (512) at a temperature lower than the fire occurrence temperature, if it does not operate even when it is confirmed by the temperature information reception module (522a) that the fire occurrence temperature has been reached, it can be determined that the gas exhaust unit (3) is broken.

[0101] The above gas detection confirmation module (522d) is configured to confirm whether a fire has been detected by the fire detection unit (4), and if the operation of the gas discharge unit (3) is confirmed by the gas discharge confirmation module (522b), it confirms whether a fire has been detected by the fire detection unit (4). The present system is characterized in that it can quickly detect a fire by operating the gas discharge unit (3) in advance when the temperature of the battery module (100) reaches a temperature set lower than the fire occurrence temperature, thereby allowing the fire to be detected by the fire detection unit (4). If the temperature of the battery module (100) rises to the fire occurrence temperature and the gas discharge unit (3) is operated but the fire is not detected by the fire detection unit (4), it can be regarded as a problem with the fire detection unit (4), and this is checked.

[0102] The above detection abnormality notification module (522e) is configured to notify an abnormality in the fire detection unit (4), and if fire detection is not confirmed by the gas detection confirmation module (522d), it can determine that there is an abnormality in the fire detection unit (4) and notify the user of this.

[0103] The above-mentioned water supply confirmation module (522f) is configured to confirm whether the water supply unit (1) is operating, and when the temperature of the battery module (100) reaches the fire temperature by the temperature information receiving module (522a), it confirms whether the water supply unit (1) is operating normally. The above-mentioned water supply confirmation module (522f) can confirm whether the supply module (12) is operating or can measure the flow rate of fire extinguishing water flowing through the water supply pipe (13) to confirm whether it is operating.

[0104] The above-mentioned main water failure notification module (522g) is configured to notify when the main water unit (1) is not operating as confirmed by the main water confirmation module (522f). In this way, when the fire temperature is detected by the temperature information monitoring module (511) but extinguishing water is not supplied, it immediately confirms and notifies this, thereby enabling a quick response even if a problem occurs in the main water unit (1).

[0105] The above-mentioned discharge abnormality notification module (521d), temperature abnormality notification module (521e), water abnormality notification module (521g), discharge failure notification module (522c), detection abnormality notification module (522e), water failure notification module (522g), etc. can generate a notification to the system itself or transmit a notification signal to a separate administrator terminal so that each component can quickly respond to an abnormal state.

[0106]

[0107] In the above, the applicant has described various embodiments of the present invention, but such embodiments are only examples of implementing the technical idea of ​​the present invention, and any change or modification that implements the technical idea of ​​the present invention should be interpreted as falling within the scope of the present invention.

Claims

1. In a battery device water injection system that extinguishes a fire by injecting fire extinguishing water into a battery device including a battery module in which multiple cells are connected in series or parallel to store power and a battery rack in which the battery modules are vertically stacked and accommodated, It includes a module housing that accommodates each battery module, a water injector that injects fire extinguishing water into each module housing when a fire occurs, a gas discharge unit that discharges gas generated within the battery module, a fire detection unit that detects a fire caused by gas generated within the battery module, and a control unit that regulates the operation of the water injector system. The above control unit, A battery device injection system characterized in that, when the temperature of the battery device exceeds a set temperature, the gas discharge unit is operated to facilitate detection of a fire occurrence through the fire detection unit.

2. In the first paragraph, the control unit A battery device injection system characterized by including a temperature information monitoring module that monitors temperature information of a battery device, a gas discharge operation module that initiates operation of the gas discharge unit when the temperature of the battery device exceeds a set temperature, a detection information receiving module that receives information that a fire is detected through the fire detection unit, and a injection operation module that operates the injection unit when fire detection information is received by the detection information receiving module or the temperature of the battery device exceeds a fire occurrence temperature.

3. In the first paragraph, the gas discharge part A battery device injection system characterized by including a rack fan that discharges gas generated within the battery module toward the fire detection unit, and an external fan that discharges gas passing through the rack fan to the outside of a space in which the battery rack is accommodated.

4. In the first paragraph, the module housing It includes a water inlet that penetrates into the module housing to supply fire fighting water from the main body, and a discharge port formed through a point at the top of the module housing to discharge fire fighting water within the module housing. A battery device water supply system characterized in that the above fire detection unit is connected to the upper part of the pipe connecting to the discharge port of each battery module, thereby detecting fire through gas generated within the battery module.

5. In the fourth paragraph, the module housing Includes an air conditioning unit that supplies air to the battery module to control the temperature, The above-mentioned air conditioning unit, It comprises an inlet housing having a through hole through which air is introduced from the bottom to a certain height, which forms a passage for introducing air; an opening / closing ball formed at the bottom of the inlet housing and rising according to the injection of fire extinguishing water into the module housing; and an inlet fan for introducing air through the inlet housing. A battery device water injection system characterized in that the above opening / closing ball rises according to the injection of fire extinguishing water and is inserted into the inlet housing at the top of the through hole to block the fire extinguishing water from being discharged to the outside through the inlet housing.

6. In paragraph 4, the main body It includes a water pipe formed vertically along the rear surface of the battery rack to form a passage through which fire extinguishing water is supplied to the water inlet of each battery module, a reservoir for storing the fire extinguishing water supplied to the water pipe, a supply module for supplying the fire extinguishing water from the reservoir through the water pipe, and an injection module formed to be connected to the water inlet for injecting the fire extinguishing water into the battery module. The above injection module, A battery device water injection system characterized by including: a sprinkler that is inserted into a module housing through the above-mentioned water inlet and sprays fire extinguishing water; and a glass valve that blocks the sprinkler and is destroyed when a certain temperature or higher is reached to allow fire extinguishing water to be sprayed through the sprinkler.

7. In the second paragraph, the control unit Includes an operation inspection unit that checks the operating status of the main system, The above operation inspection unit is, A battery device injection system characterized by including a gas standard inspection unit that checks the operating status according to gas generation and a temperature standard inspection unit that checks the operating status according to temperature.

8. In paragraph 7, the gas standard inspection unit A battery device water injection system, characterized by comprising: a fire detection receiving module for receiving fire detection information by the fire detection unit; a discharge operation confirmation module for confirming whether the gas discharge unit is operating when a fire detection is received; a temperature information confirmation module for confirming temperature information of a battery module when the gas discharge unit is not operating; a discharge abnormality notification module for notifying an abnormality of the gas discharge unit when the temperature of the battery module exceeds the set temperature at which the gas discharge unit operates but the gas discharge unit is not operating; a temperature abnormality notification module for instructing confirmation of an abnormality in temperature measurement when the temperature of the battery module does not exceed the set temperature or the temperature is not confirmed as a result of the temperature information confirmation; a water injection operation confirmation module for confirming the operation of the water injection unit when a fire is detected; and a water injection abnormality notification module for notifying an abnormality of the water injection unit when the water injection unit does not supply fire extinguishing water.

9. In paragraph 7, the temperature standard inspection unit A battery device injection system characterized by including a temperature information receiving module for receiving temperature information of a battery module, a gas emission confirmation module for confirming the operation of a gas discharge unit if a temperature that can be determined as a fire occurrence is exceeded, an emission failure notification module for notifying a failure of the gas discharge unit if the gas discharge unit is not operating, a fire detection confirmation module for confirming fire detection by a fire detection unit, a detection abnormality notification module for determining that there is a problem with the fire detection unit if a fire is not detected by the fire detection unit and notifying the same, a water supply confirmation module for checking whether the water supply unit is operating, and a water supply failure notification module for determining that there is a failure of the water supply unit if the water supply unit is not operating and notifying the same.

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