Fire extinguishing agent spraying device

Abstract

Disclosed is a fire extinguishing agent injection apparatus, comprising: an injection container for storing a fire extinguishing agent and comprising an inwardly protruding container bottom portion; and a siphon in the spray container and including a lower end adjacent to the container bottom portion and having an inclination angle with respect to a reference line based on a center of an inner surface of the container bottom portion.

Description

Technical Field

[0001] Embodiments of this disclosure relate to a fire extinguishing agent spraying device capable of reducing or minimizing the amount of fire extinguishing agent remaining. Background Technology

[0002] In the event of a fire, conventional energy storage systems (ESS) employ total flooding gas fire suppression systems that release extinguishing agents into a sealed space. However, with increasing battery capacity, total flooding gas fire suppression systems may become insufficient to effectively extinguish fires. To address this issue, it may be necessary to develop fire suppression systems suitable for large-capacity energy storage systems.

[0003] The information disclosed in this section is provided only to enhance the understanding of the background art of this disclosure and may therefore contain information that does not constitute related art. Utility Model Content

[0004] Embodiments of this disclosure provide a fire extinguishing agent spraying device capable of reducing or minimizing the amount of residual fire extinguishing agent.

[0005] A fire extinguishing agent spraying device according to one or more embodiments of the present disclosure includes: a spray container for storing a fire extinguishing agent and including an inwardly projecting container bottom portion; and a siphon tube in the spray container and including a lower end adjacent to the container bottom portion and having an inclined angle relative to a reference line based on the center of the inner surface of the container bottom portion.

[0006] The extinguishing agent spraying equipment may further include a discharge valve connected to the upper end of the spraying container.

[0007] The siphon tube may include the upper end connected to the discharge valve.

[0008] A siphon can include a hollow tube.

[0009] The baseline can be based on the inner vertices of the bottom part of the container.

[0010] The baseline can be a horizontal line that passes through the inner apex of the bottom part of the container.

[0011] The tilt angle of the lower end of the siphon tube can be approximately 0 degrees or more.

[0012] The distance (h) from the lower end of the siphon to the inner vertex of the bottom of the container can be calculated as follows:

[0013]

[0014] Where r t Let p represent the inner radius of the siphon tube, and p represent the pitch of the thread used to assemble the siphon tube to the discharge valve.

[0015] The tilt angle of the lower end of the siphon tube can be equal to or less than the tilt angle of the bottom of the container.

[0016] The tilt angle of the lower end of the siphon tube can be less than approximately 10 degrees.

[0017] The distance (h) from the lower end of the siphon to the inner vertex of the bottom of the container can be calculated as follows:

[0018]

[0019] Where r t Let represent the inner radius of the siphon tube, where p represents the pitch of the thread used to assemble the siphon tube to the discharge valve, and θ represents the angle of inclination of the lower end of the siphon tube relative to a reference line based on the center of the inner surface of the container bottom portion.

[0020] A fire extinguishing agent spraying device according to one or more embodiments of the present disclosure includes: a spray container for storing a fire extinguishing agent and including an outwardly projecting container bottom portion; and a siphon tube in the spray container and including a lower end adjacent to the container bottom portion and having an inclined angle relative to a reference line based on the center of the inner surface of the container bottom portion.

[0021] The extinguishing agent spraying equipment may further include a discharge valve connected to the upper end of the spraying container.

[0022] The siphon tube may include the upper end connected to the discharge valve.

[0023] A siphon can include a hollow tube.

[0024] The baseline can be based on the inner bottom point of the container's bottom section.

[0025] The baseline can be a horizontal line that passes through the inner bottom point of the bottom part of the container.

[0026] The tilt angle of the lower end of the siphon tube can be approximately 0 degrees or more.

[0027] The distance (h) from the lower end of the siphon tube to the inner bottom point of the container can be calculated as follows:

[0028]

[0029] Where r t Let p represent the inner radius of the siphon tube, and p represent the pitch of the thread used to assemble the siphon tube to the discharge valve.

[0030] The distance from the lower end of the siphon tube to the inner bottom point of the container can be approximately three times the pitch of the thread.

[0031] The extinguishing agent spraying equipment may further include a support for supporting the lower end of the spraying container. Attached Figure Description

[0032] Figure 1 This is a schematic diagram showing a fire extinguishing agent spraying device used in an energy storage system;

[0033] Figure 2 This is a schematic view of a self-supporting jet container according to one or more embodiments of the present disclosure;

[0034] Figure 3 and Figure 4 It is shown in Figure 2 A view showing the form of a siphon tube;

[0035] Figure 5 This is a schematic view of a jet container to which a support structure is attached according to one or more other embodiments of the present disclosure;

[0036] Figure 6 and Figure 7 It is shown in Figure 5 A view showing the form of a siphon tube;

[0037] Figure 8 It is shown in Figure 2 A comparative view between the self-supporting jet container shown and a conventional self-supporting jet container; and

[0038] Figure 9 It is shown in Figure 5 The view shows a comparison between the injection container attached to the support structure shown and the injection container attached to a conventional support structure. Detailed Implementation

[0039] Aspects of some embodiments of this disclosure and their implementation methods can be more readily understood by referring to the detailed description of the embodiments and the accompanying drawings. The described embodiments are provided as examples so that this disclosure will be thorough and complete, and will fully convey aspects of this disclosure to those skilled in the art. Therefore, redundant processes, elements, and techniques that are irrelevant or unrelated to the description of the embodiments or are not essential for a person of ordinary skill in the art to fully understand aspects of this disclosure may be omitted. Unless otherwise stated, the same reference numerals, characters, or combinations thereof indicate the same elements throughout the accompanying drawings and written description, and therefore their repeated description may be omitted.

[0040] The described embodiments may have various variations and may be embodied in different forms, and should not be construed as being limited to the embodiments shown herein. The terms "can," "may," or "may not" used in describing an embodiment correspond to one or more embodiments of this disclosure.

[0041] In view of the entire contents of this disclosure, those skilled in the art will understand that: this disclosure covers all variations, equivalents and substitutions within the spirit and technical scope of this disclosure; each of the features of the embodiments of this disclosure may be combined with each other in part or in whole, and various technical interlocks and operations are possible; and each embodiment may be implemented independently of each other or may be implemented together in an associated manner, unless otherwise stated or implied.

[0042] In the accompanying drawings, the relative dimensions of elements, layers, and regions may be enlarged for clarity and / or descriptive purposes. Various embodiments are described herein with reference to illustrative cross-sectional views as schematic examples and / or intermediate structures. Therefore, variations in the illustrated shapes due to, for example, manufacturing techniques and / or tolerances are to be expected. Furthermore, the specific structural or functional descriptions disclosed herein are merely illustrative for the purpose of describing embodiments according to the concepts of this disclosure. Therefore, the embodiments disclosed herein should not be construed as limited to the shapes of the elements, layers, or regions shown, but should include shape deviations due to, for example, manufacturing processes.

[0043] For ease of explanation, spatial relative terms such as “below,” “under,” “lower,” “below,” “on,” and “above” used herein are used to describe the relationship of one element or feature as shown in the figures to other elements or features. It will be understood that spatial relative terms are intended to encompass different orientations of the device in use or operation besides those depicted in the figures. For example, if the device in the figures is flipped, an element described as “below,” “under,” or “below” other elements or features can be positioned “above” other elements or features. Thus, the example terms “below” and “below” can encompass both above and below orientations. The device can be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein should be interpreted accordingly. Similarly, when a first part is described as being arranged “on” a second part, this means that the first part is arranged above or below the second part, and not limited to the second part being above it based on the direction of gravity.

[0044] The term "facing" can mean that the first object is directly or indirectly opposite the second object. In the case of a third object between the first and second objects, although the first and second objects can be understood as indirectly opposite each other, they are still facing each other.

[0045] It will be understood that when an element, layer, area, or component is referred to as being "formed" on, "on" another element, layer, area, or component, "connected" to, or "(operably or communicatively) coupled to" another element, layer, area, or component, it can be directly formed on, on, connected to, or coupled to another element, layer, area, or component, or it can be indirectly formed on, on, connected to, or coupled to another element, layer, area, or component, or it can be indirectly formed on, on, connected to, or coupled to another element, layer, area, or component, such that one or more intermediary elements, layers, areas, or components may exist. Furthermore, this can be collectively referred to as direct or indirect coupling or connection, and integral or non-integral coupling or connection. For example, when a layer, area, or component is referred to as being "electrically connected" or "electrically coupled" to another layer, area, or component, it can be directly electrically connected or coupled to another layer, area, and / or component, or one or more intermediary layers, areas, or components may exist. One or more intermediary components may include switches, resistors, and / or capacitors, etc. In describing embodiments, the term "connection" indicates an electrical connection unless explicitly described as a direct connection, and "direct connection / direct coupling" or "directly on" means that one component is directly connected to or coupled to another component, or that one component is directly on another component without an intermediary component.

[0046] Furthermore, in this specification, when a portion of a layer, film, region, or plate is formed on another portion, the forming direction is not limited to the upward direction, but also includes forming the portion on a side surface or in the downward direction. Conversely, when a portion of a layer, film, region, or plate is formed "below" another portion, this includes not only the case where the portion is "directly" "below" the other portion, but also the case where there is another portion between the portion and the other portion. Similarly, other expressions describing the relationship between components, such as "between," "directly between," or "adjacent to," and "directly adjacent to," can be interpreted similarly. It will be understood that when an element or layer is referred to as "between" two elements or layers, it can be the only element or layer between the two elements or layers, or one or more intervening elements or layers may be present.

[0047] For the purposes of this disclosure, expressions such as “at least one of…”, “any one of…”, or “one or more of…” that precede a list of elements modify the entire list of elements and do not modify any individual element in the list. For example, “at least one of X, Y, and Z”, “at least one of X, Y, or Z”, “at least one selected from the group consisting of X, Y, and Z”, and “at least one selected from the group consisting of X, Y, or Z” can be interpreted as only X, only Y, only Z, any combination of two or more of X, Y, and Z, such as XYZ, XYY, YZ, and ZZ, or any variations thereof. Similarly, the expressions “at least one of A and B” and “one of A or B” can include A, B, or A and B. As used herein, “or” generally means “and / or”, and the term “and / or” includes any and all combinations of one or more of the associated enumerations. For example, the expression “A and / or B” can include A, B, or A and B. Similarly, when preceding a list of elements, expressions such as “at least one of…”, “multiple of…”, “one of…” and other prepositional phrases modify the entire list of elements, but not individual elements within the list.

[0048] It will be understood that while the terms “first,” “second,” and “third,” etc., are used herein to describe various elements, components, areas, layers, and / or sections, these elements, components, areas, layers, and / or sections should not be limited by these terms. These terms do not correspond to a specific order, position, or superiority, and are used only to distinguish one element, component, area, region, layer, section, or part from another element, component, area, region, layer, section, or part. Therefore, without departing from the spirit and scope of this disclosure, the first element, component, area, layer, or section described below may be referred to as a second element, component, area, layer, or section. Describing an element as a “first” element may not require or imply the presence of a second element or other elements. The terms “first,” “second,” etc., may also be used to distinguish elements of different classes or groups. For the sake of brevity, the terms “first,” “second,” etc., may respectively represent “first class (or first group),” “second class (or second group),” etc.

[0049] The terminology used herein is for the purpose of describing embodiments only and is not intended to limit this disclosure. As used herein, the singular form “a” is also intended to include the plural form, and the plural form is also intended to include the singular form, unless the context clearly indicates otherwise. It will be further understood that, when used in this specification, the terms “comprising,” “having,” and “including” specify the presence of the stated feature, integer, step, operation, element, component, and / or group thereof, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0050] As used herein, the terms “substantially,” “about,” “approximately,” and similar terms are used as approximate terms rather than terms of degree and are intended to take into account the inherent biases in measured or calculated values ​​that would be recognized by one of ordinary skill in the art. For example, “substantially” can include a range of + / - 5% of the corresponding value. “About” or “approximately” as used herein includes the value as well as a value within an acceptable range of deviations for a particular value, determined by one of ordinary skill in the art, taking into account the measurement in question and the errors associated with the measurement of the particular quantity (i.e., limitations of the measurement system). For example, “about” can refer to within one or more standard deviations, or within ±30%, ±20%, ±10%, ±5% of the value. Further, the word “may” as used in describing embodiments of this disclosure refers to “one or more embodiments of this disclosure.”

[0051] Unless otherwise specified, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. It will be further understood that terms such as those defined in common dictionaries shall be interpreted as having the same meaning as they have in the relevant technical and / or content of this specification, and shall not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0052] In the following description, a fire extinguishing agent spraying device according to one or more embodiments of the present disclosure will be described with reference to the accompanying drawings.

[0053] Figure 1 This is a schematic diagram showing a fire extinguishing agent spraying device used in an energy storage system.

[0054] like Figure 1 As shown, the extinguishing agent spraying device for an energy storage system may generally include: a supply unit 30 configured to supply extinguishing agent to the energy storage system (ESS) 10, an extinguishing unit 50 configured to deliver and spray extinguishing agent, and a sensor configured to detect fire.

[0055] In one or more embodiments, the supply unit 30 may include: a spray container 30a configured to store extinguishing agent, a discharge valve 30b for spraying extinguishing agent, a regulator 30c configured to adjust the supply pressure and time of the extinguishing agent, and a controller for controlling the equipment.

[0056] The spray container 30a can be a pressure vessel for storing extinguishing agents. Depending on whether the spray container 30a can be installed independently, it can be classified as self-supporting or attached to a supporting structure. For example, the extinguishing agent may include carbon dioxide, halogenated hydrocarbons, halogenated compounds, or inert gases. Nitrogen can be used as the compressed gas for spraying the extinguishing agent.

[0057] If the controller determines that the extinguishing agent should be sprayed, the discharge valve 30b can be opened to allow the extinguishing agent to be sprayed. The discharge valve 30b can be used to open or close the spray container 30a and can be connected to a siphon pipe, described later. If the discharge valve 30b is open, the extinguishing agent can be discharged and moved to the regulator 30c. The regulator 30c can be used to adjust the spray pressure of the extinguishing agent to the final spray pressure. For this purpose, the regulator 30c can be implemented as a pressure regulator.

[0058] The extinguishing unit 50 may include a main pipe, branch pipes, and spray pipes extending from the supply unit 30 to each of the plurality of battery modules 12 of the ESS10. The plurality of battery modules 12 may be mounted on a plurality of battery racks, and the branch pipes and spray pipes for spraying extinguishing agent may be mounted on each of the battery racks. The extinguishing unit 50 may be used to connect the supply unit 30 to the ESS10.

[0059] In one or more embodiments, if a fire occurs in the battery module 12, a sensor can detect the fire, and extinguishing agent can be discharged from the supply unit 30 to be delivered to the battery module 12 through the extinguishing unit 50. Therefore, the extinguishing agent can be rapidly sprayed into the battery module 12, thereby extinguishing the fire that has occurred in the battery module 12.

[0060] The spray container of the above-mentioned fire extinguishing agent spraying equipment will be described in detail below.

[0061] Figure 2 This is a schematic view of a self-supporting jet container according to one or more embodiments of the present disclosure. Figure 3 and Figure 4 It is shown in Figure 2 A view showing the form of a siphon tube.

[0062] like Figure 2 As shown, the self-supporting spray container 300a can be a container that can be installed independently without requiring a separate structure for supporting the container. The self-supporting spray container 300a may include a cylinder 300, a siphon tube 320 inserted into the cylinder 300, and a discharge valve 340 for discharging the extinguishing agent. The discharge valve 340 may be connected to the upper end of the cylinder 300 (or the spray container 300a).

[0063] The cylinder 300 may include a container side portion 302 having a cylindrical shape and a container bottom portion 304 formed to protrude toward the discharge valve 340. The container side portion 302 and the container bottom portion 304 may be integrally formed with each other. The cylinder 300 may be filled with extinguishing agent and nitrogen. Under pressurized conditions, nitrogen may be contained in the cylinder 300 as a compressed gas. If the discharge valve 340 is opened, the compressed nitrogen may expand and expel the extinguishing agent. The extinguishing agent may move upward along the siphon tube 320 and may be discharged from the cylinder 300 through the discharge valve 340.

[0064] One end (e.g., the upper end) of the siphon 320 may be fixed to the discharge valve 340, and its other end (e.g., the lower end) may be located adjacent to the bottom portion 304 of the container. The siphon 320 may include a hollow tube, or be formed as a hollow tube or hollow conduit. Figure 3 As shown, the siphon 320 may have an end (e.g., a lower end) 322 facing the bottom portion 304 of the container and substantially perpendicular to the side surface of the siphon 320. For example, a reference line L1 passing through the end 322 of the siphon 320 may be substantially parallel to or tangent to the inner vertex of the bottom portion 304 of the container. For example, reference line L2 is a horizontal line passing through the inner vertex of the bottom portion 304 of the container. The distance h from the end 322 of the siphon 320 to the inner vertex of the bottom portion 304 of the container (e.g., the distance between reference lines L1 and L2) can be calculated using Equation 1 below.

[0065] Equation 1

[0066]

[0067] variable r t This indicates the inner radius of the siphon tube (e.g., in mm), and p indicates the pitch (e.g., the distance between threads) of the thread used to assemble the siphon tube to the discharge valve (e.g., in mm). The thread pitch can vary depending on the screw's specifications and size.

[0068] In other embodiments, and see also Figure 4 The siphon 320a may have an end 322a that faces the bottom portion 304 of the container and is inclined at a relatively small angle θ relative to a plane that is substantially perpendicular to the side surface of the siphon 320a. For example, the distance h from the center of the end 322a of the siphon 320a (e.g., the center of the end through which the reference line A passes) to the inner vertex of the bottom portion 304 of the container may be related to the distance between the end 322a and the inner vertex of the container bottom portion 304. Figure 3In one or more embodiments, the distance h is the same, and the tilt angle θ (e.g., the angle formed between reference lines L3 and L4) can be equal to or less than the tilt angle of the container bottom portion 304. For example, reference line L4 is a horizontal line passing through the inner vertex of the container bottom portion 304. The distance h from the center of the end 322a of the siphon 320a to the inner vertex of the container bottom portion 304 can be calculated using Equation 2 below.

[0069] Equation 2

[0070]

[0071] variable r t Let θ represent the inner radius of the siphon tube (e.g., in mm), p represent the thread pitch (e.g., the distance between threads) (e.g., in mm), and θ represent the angle of inclination of the end of the siphon tube relative to a reference line L4 passing through the inner apex of the container bottom portion (e.g., the angle formed between reference lines L3 and L4). In one embodiment, θ represents the angle of inclination of the lower end of the siphon tube relative to a reference line L4 based on the center of the inner surface of the container bottom portion.

[0072] The remaining amount of extinguishing agent Ra (e.g., in kg) can vary depending on the tilt angle of the end 322a of the siphon 320a. The remaining amount of extinguishing agent Ra can be calculated using Equation 3 below.

[0073] Equation 3

[0074]

[0075] variable r c The inner radius of the spray container (e.g., in mm), r t d represents the inner radius of the siphon. r θ represents the relative density of the extinguishing agent (the relative density of water is 1), and θ represents the angle of inclination of the end of the siphon tube relative to the baseline L4 that passes through the inner apex of the bottom portion of the container.

[0076] For example, with the inner diameter of the spray container 300a being approximately 260 mm and the inner diameter of the siphon tube 320a being approximately 40 mm, the remaining amount Ra of the extinguishing agent is shown in Table 1 below, depending on the inclination angle of the end 322a of the siphon tube 320a.

[0077] Table 1

[0078]

[0079]

[0080] If only the remaining amount of extinguishing agent is considered, the smaller the tilt angle θ of the end 322a of the siphon tube 320a, the better. Considering the workability of the end 322a of the siphon tube 320a and the remaining amount of extinguishing agent, the optimal or suitable value of the tilt angle θ of the end 322a of the siphon tube 300a relative to the reference line L4 of the inner apex of the container bottom portion 304 passing through the spray container 300a can be up to about 10 degrees.

[0081] Figure 5 This is a schematic view of a jet container to which a support structure is attached according to one or more other embodiments of the present disclosure. Figure 6 and Figure 7 It is shown in Figure 5 A view showing the form of a siphon tube.

[0082] like Figure 5 As shown, the injection container 300b attached to the support structure can be a container connected to a separate structure for supporting the container. The injection container 300b attached to the support structure may include a cylinder 3000, a siphon tube 3200 inserted into the cylinder 3000, and a discharge valve 3400 for discharging the extinguishing agent. The lower end of the cylinder 3000 may be supported by a support portion 3100. The support portion 3100 may be integrally formed with the cylinder 3000, or it may be provided separately and assembled to the cylinder 3000.

[0083] The cylinder 3000 may include a container side portion 3002 having a cylindrical shape and a container bottom portion 3004 formed to protrude in a direction away from the discharge valve 3400. The container side portion 3002 and the container bottom portion 3004 may be integrally formed with each other. Because the container bottom portion 3004 is formed to protrude in an outward direction, the cylinder 3000 may be suitably connected to a separate support structure. The cylinder 3000 may be supported by a cylindrical support portion 3100 supporting the lower end of the cylinder 3000. The cylinder 3000 may be filled with extinguishing agent and nitrogen. Under pressurized conditions, nitrogen may be contained in the cylinder 3000 as a compressed gas. If the discharge valve 3400 is opened, the compressed nitrogen may expand and expel the extinguishing agent. The extinguishing agent may move upward along the siphon tube 3200 and may be discharged from the cylinder 3000 through the discharge valve 3400.

[0084] One end of the siphon 3200 can be fixed to the discharge valve 3400, and its other end can be located adjacent to the bottom portion 3004 of the container. The siphon 3200 can be formed into a hollow cylindrical shape. Figure 6As shown, the siphon 3200 may have an end (e.g., a lower end) 3220 facing the bottom portion 3004 of the container and substantially perpendicular to the side surface of the siphon 3200. For example, a reference line L5 passing through the end 3220 of the siphon 3200 may be parallel to a reference line L6 passing through the inner bottom point of the bottom portion 3004 of the container. For example, reference line L6 is a horizontal line passing through the inner bottom point of the bottom portion 3004 of the container. The distance h from the end 3220 of the siphon 3200 to the inner bottom point of the bottom portion 3004 of the container (e.g., the distance between reference lines L5 and L6) can be calculated using Equation 1 above.

[0085] In other embodiments, and see also Figure 7 The siphon 3200a may have an end 3220a facing the bottom portion of the container 3004 and inclined at a relatively small angle θ relative to a plane that is substantially perpendicular to the side surface of the siphon 3200a. For example, the distance h from the center of the end 3220a of the siphon 3200a (e.g., the center of the end through which the reference line B passes) to the inner bottom point of the bottom portion of the container 3004 may be related to the distance between the end 3220a and the bottom point of the container 3004. Figure 6 In one or more embodiments, the distance h is the same, and the tilt angle θ (e.g., the angle formed between the reference lines L6 and L7) can be set such that the distance h from the end 3220a of the siphon 3200a to the inner bottom point of the container bottom portion 3004 is three times the pitch of the thread in Equation 1 above (e.g., h = 3p).

[0086] In the following text, the siphon tubes having the above-described structure according to embodiments of the present disclosure will be compared and contrasted with conventional siphon tubes.

[0087] Figure 8 It is shown in Figure 2 The view shown compares the self-supporting jet container with a conventional self-supporting jet container. Figure 9 It is shown in Figure 5 The view shows a comparison between the injection container attached to the support structure shown and the injection container attached to a conventional support structure.

[0088] In respectively Figure 8 and Figure 9The cylinder shown on the left side as the spray container 30a is a comparative example including a conventional siphon tube 3020. The conventional siphon tube 3020 may have an end inclined at an angle of approximately 45 degrees (e.g., the angle formed between the end of the siphon tube 3022 and the reference line L8 passing through the inner apex of the container bottom portion), which is much larger than the inclination angle of the ends of the siphon tubes 320, 3200 according to the embodiments described above. The reason for this structure is to maximize or improve the cross-sectional area of ​​the end of the siphon tube 3020 to completely discharge the extinguishing agent pressurized at tens of bar pressure in a short time (within 10 seconds). Because the inclination angle of the end of the conventional siphon tube 3020 is relatively large, sufficient flow path can be ensured if the discharge valve opens, thereby discharging the extinguishing agent without clogging the siphon tube. If the level of the remaining extinguishing agent drops below the starting point of the opening at the end of the conventional siphon tube 3020 (by... Figure 8 and Figure 9 If the compressed gas is suddenly released (as shown by the first dashed line in each of the tables), the power used to discharge the remaining extinguishing agent through the siphon may be lost, potentially leading to a large amount of extinguishing agent remaining at the bottom of the container. Referring to Table 1 above, approximately 2.4 kg or more of extinguishing agent may remain in the conventional discharge container. This could result in a shortened extinguishing agent discharge time. Furthermore, to meet the appropriate extinguishing agent discharge volume, a relatively expensive large amount of extinguishing agent may need to be properly injected into the conventional discharge container, leading to increased equipment production or maintenance costs.

[0089] like Figure 8 and Figure 9 As shown on the right side of each of them, the starting point of the opening of the end 322 or 3220 of the siphon tube 320 or 3200 according to one or more embodiments of the present disclosure (by... Figure 8 and Figure 9 The second dashed line in each of the following (indicating) may be located at a lower position than a conventional siphon. In some embodiments, the end 322 or 3220 of the siphon 320 or 3200 may be substantially perpendicular to the side surface of the siphon 320 or 3200 (see [reference]). Figure 3 and Figure 6 In other embodiments (e.g., see...), Figure 4 and Figure 7The ends 322a or 3220a of the siphon tubes 320a or 3200a may be inclined at a relatively small angle (e.g., a maximum of about 10 degrees) relative to a plane substantially perpendicular to the side surface of the siphon tubes 320a or 3200a. Therefore, the starting point of the opening at the end of the siphon tubes 320, 3200, 320a, or 3200a according to one or more embodiments of the present disclosure is closer to the bottom surface 304 or 3004 of the spray container than the starting point of the opening at the end of a conventional siphon tube. Because the ends 322, 3220, 322a, or 3220a of the siphon tubes 320, 3200, 320a, or 3200a according to one or more embodiments of the present disclosure are relatively close to the bottom surface 304 or 3004 of the spray container, the extinguishing agent can be discharged in a maximized or improved manner. Therefore, the remaining amount of extinguishing agent can be reduced or minimized (refer to Table 1 above).

[0090] Fire suppression devices for energy storage systems deliver extinguishing agent directly to the battery cell where an event such as ignition occurs at a very low flow rate (e.g., about 4 liters per minute (LPM)). Because the extinguishing agent is delivered directly to the target cell or module, it is not necessary to completely dissipate the extinguishing agent within a short time. Therefore, according to one or more embodiments of this disclosure, the tilt angle of the end of the siphon tube 320, 3200, 320a, or 3200a can be reduced, resulting in a smaller cross-sectional area at the end compared to a conventional siphon tube with an end tilted at an angle of about 45 degrees. Consequently, the extinguishing agent can be sprayed at a relatively low flow rate for a relatively long time (e.g., more than 10 seconds, which is likely the spray time in related art).

[0091] As is evident from the foregoing description, in the fire extinguishing agent spraying device according to one or more embodiments of the present disclosure, the shape of the siphon tube can be modified to fit the shape of the bottom of the spray container, thereby improving or maximizing the amount of fire extinguishing agent sprayed when a fire occurs. Therefore, the amount of fire extinguishing agent remaining in the spray container after spraying can be reduced or minimized. In this way, the fire extinguishing performance of the fire extinguishing agent spraying device can be improved due to more efficient use of the fire extinguishing agent, and the equipment manufacturing or maintenance costs can be reduced.

[0092] The above are merely some embodiments for implementing this disclosure. This disclosure is not limited to the above content, and those skilled in the art should understand that various modifications can be made without departing from the spirit of this disclosure as claimed in the claims, and that functional equivalents are included.

Claims

1. An extinguishing agent spraying apparatus characterized by comprising: include: A spray container for storing extinguishing agent, and includes an inwardly convex container bottom portion; and A siphon tube is included in the spray container, and it includes a lower end adjacent to the bottom portion of the container and having an inclined angle relative to a reference line based on the center of the inner surface of the bottom portion of the container. The tilt angle of the lower end of the siphon tube is greater than 0 degrees and less than 10 degrees, and The distance (h) from the lower end of the siphon tube to the inner vertex of the bottom portion of the container is calculated as follows: wherein r t represents the inner radius of the siphon, wherein p represents the pitch of the threads used to assemble the siphon to a drain valve, and wherein θ represents the angle of inclination of the lower end of the siphon relative to the reference line based on the center of the inner surface of the container bottom.

2. The fire extinguishing agent injection apparatus according to claim 1, characterized by The discharge valve is connected to the upper end of the injection container.

3. The fire extinguishing agent spraying apparatus according to claim 2, wherein The siphon tube includes an upper end connected to the discharge valve.

4. The fire extinguishing agent injection apparatus according to claim 3, characterized by The siphon tube comprises a hollow tube.

5. The fire extinguishing agent injection apparatus according to claim 4, characterized by The baseline is based on the inner vertex of the bottom portion of the container.

6. The fire extinguishing agent spraying apparatus according to claim 5, wherein The baseline is a horizontal line that passes through the inner vertex of the bottom portion of the container.

7. The fire extinguishing agent spraying apparatus according to claim 4, wherein The tilt angle of the lower end of the siphon tube is equal to or less than the tilt angle of the bottom portion of the container.

8. A fire extinguishing agent spraying device, characterized in that, A spray container for storing extinguishing agent, and includes an inwardly convex container bottom portion; A siphon tube is included in the spray container, and it includes a lower end adjacent to the bottom portion of the container and having an inclined angle relative to a reference line based on the center of the inner surface of the bottom portion of the container. The tilt angle of the lower end of the siphon tube is greater than 0 degrees, and The distance (h) from the lower end of the siphon tube to the inner vertex of the bottom portion of the container is calculated as follows: wherein r t represents the inner radius of the siphon, and wherein p represents the pitch of the threads used to assemble the siphon to a drain valve.

9. A fire extinguishing agent spraying device, characterized in that, include: A spray container for storing extinguishing agent, and includes an outwardly protruding bottom portion of the container; and A siphon tube is included in the spray container, and it includes a lower end adjacent to the bottom portion of the container and having an inclined angle relative to a reference line based on the center of the inner surface of the bottom portion of the container. The tilt angle of the lower end of the siphon tube is greater than 0 degrees and less than 10 degrees, and The distance (h) from the lower end of the siphon tube to the inner bottom point of the container bottom portion is calculated as follows: wherein r t represents the inner radius of the siphon, and wherein p represents the pitch of the threads used to assemble the siphon to a drain valve.

10. The fire extinguishant injection apparatus according to claim 9, characterized by It further includes a discharge valve connected to the upper end of the injection container.

11. The fire extinguishant injection apparatus according to claim 10, characterized by The siphon tube includes an upper end connected to the discharge valve.

12. The fire extinguishant injection apparatus according to claim 11, characterized by The siphon tube comprises a hollow tube.

13. The fire extinguishant injection apparatus according to claim 12, characterized by The baseline is based on the inner bottom point of the bottom portion of the container.

14. The fire extinguishant injection apparatus according to claim 13, characterized by The baseline is a horizontal line that passes through the inner bottom point of the bottom portion of the container.

15. The fire extinguishant injection apparatus according to claim 9, characterized by The distance from the lower end of the siphon tube to the inner bottom point of the container bottom portion is three times the pitch of the thread.

16. The fire extinguishant injection apparatus according to claim 9, characterized by It further includes a support portion for supporting the lower end of the spray container.

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