Fire extinguishing device and fire extinguishing method

Abstract

The invention relates to a fire extinguishing device and a fire extinguishing method. The fire extinguishing device comprises a storage cavity, a sealing assembly, a detection assembly and a control module. The sealing assembly is arranged in the storage cavity; the sealing assembly and the detection assembly are electrically connected with the control module. The storage cavity is used for storing a fire-extinguishing medium; the detection assembly is used for detecting fire feature data; the control module is used for controlling the sealing assembly to be opened based on the fire characteristic data meeting the fire extinguishing triggering condition and controlling the sealing assembly to be closed based on the fire characteristic data not meeting the fire extinguishing triggering condition. Thus, the opening and closing opportunity of the sealing assembly can be adjusted in time according to the fire occurrence condition, so that accurate control over the use amount of the fire extinguishing medium is achieved, and waste of the fire extinguishing medium is avoided.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electric power fire safety, and in particular to a fire extinguishing device and a fire extinguishing method. Background Art

[0002] At present, the relevant design standards of fire extinguishing technology are still in an immature stage. For example, the specifications and models of conventional fire extinguishing systems are not unified, and the storage capacity of fire extinguishing media is also different. In some fire extinguishing scenarios, such as when thermal runaway of batteries occurs in the battery compartment, the degree of fire spread varies. When a local fire occurs, conventional fire extinguishing systems usually spray all the fire extinguishing media at one time, resulting in excessive release of fire extinguishing media, thereby wasting fire extinguishing media. Summary of the invention

[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a fire extinguishing device and a fire extinguishing method.

[0004] The present disclosure provides a fire extinguishing device, comprising: a storage chamber, a sealing assembly, a detection assembly, and a control module;

[0005] The sealing component is arranged in the storage cavity; the sealing component and the detection component are electrically connected to the control module respectively;

[0006] The storage cavity is used to store fire extinguishing medium; the detection component is used to detect fire characteristic data; the control module is used to control the sealing component to open based on the fire characteristic data meeting the fire extinguishing trigger condition, and to control the sealing component to close based on the fire characteristic data not meeting the fire extinguishing trigger condition.

[0007] Optionally, the sealing assembly comprises: a sealing membrane, a penetration mechanism and a transmission mechanism;

[0008] The sealing film is wound and fixed on the transmission mechanism; the transmission mechanism and the penetration mechanism are electrically connected to the control module respectively;

[0009] The transmission mechanism is used to drive the sealing film to move along the conveying direction; the penetration mechanism is used at least to release the fire extinguishing medium by penetrating the sealing film.

[0010] Optionally, the penetration mechanism comprises: an electrostrictive portion and a piercing portion;

[0011] The piercing portion is connected to the electrostrictive portion; the electrostrictive portion is electrically connected to the control module.

[0012] Optionally, the fire extinguishing device further comprises: a first chamber, a second chamber and a release pipeline;

[0013] The piercing portion and at least a portion of the sealing film are located in the first chamber; the transmission mechanism and at least a portion of the sealing film are located in the second chamber; and the release pipeline is connected to the first chamber.

[0014] Optionally, the second chamber is loaded with an inert gas.

[0015] Optionally, the fire extinguishing device further comprises: a pressure sensing unit;

[0016] The pressure sensing unit is electrically connected to the control module and fixed to the storage cavity; the pressure sensing unit is used to sense the internal pressure of the storage cavity.

[0017] Optionally, the fire extinguishing device further comprises: a weight sensing portion;

[0018] The weight sensing part is electrically connected to the control module and is located at the bottom of the storage cavity; the weight sensing part is used to sense the weight of the fire extinguishing medium in the storage cavity.

[0019] The present disclosure also provides a fire extinguishing method, which is implemented based on any of the above-mentioned fire extinguishing devices; the method comprises:

[0020] Detect fire characteristic data;

[0021] Based on the fire characteristic data meeting the fire extinguishing trigger condition, the sealing component is controlled to be opened, and based on the fire characteristic data not meeting the fire extinguishing trigger condition, the sealing component is controlled to be closed.

[0022] Optionally, the fire extinguishing triggering condition includes: at least two types of fire characteristic data are abnormal.

[0023] Optionally, the method further comprises:

[0024] detecting the internal pressure of the storage chamber and the weight of the fire extinguishing medium in the storage chamber;

[0025] The internal pressure of the storage chamber is compared with the secondary fire extinguishing driving pressure threshold to obtain a first comparison result, and / or the weight of the fire extinguishing medium in the storage chamber is compared with the secondary fire extinguishing weight threshold to obtain a second comparison result.

[0026] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0027] The fire extinguishing device provided by the embodiment of the present disclosure includes: a storage chamber, a sealing component, a detection component and a control module; the sealing component is arranged in the storage chamber; the sealing component and the detection component are electrically connected to the control module respectively; the storage chamber is used to store the fire extinguishing medium; the detection component is used to detect the fire characteristic data; the control module is used to control the sealing component to open based on the fire characteristic data meeting the fire extinguishing trigger condition, and to control the sealing component to close based on the fire characteristic data not meeting the fire extinguishing trigger condition. In this way, the timing of opening and closing the sealing component can be adjusted in time according to the fire occurrence situation, thereby realizing the precise control of the amount of the fire extinguishing medium and avoiding the waste of the fire extinguishing medium. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0030] Figure 1 A schematic diagram of the structure of a fire extinguishing device provided in an embodiment of the present disclosure;

[0031] Figure 2 A schematic cross-sectional view of a sealing assembly provided in an embodiment of the present disclosure;

[0032] Figure 3 A schematic diagram of a top view of a sealing assembly provided in an embodiment of the present disclosure;

[0033] Figure 4 A schematic diagram of the structure of another fire extinguishing device provided in an embodiment of the present disclosure;

[0034] Figure 5 A flow chart of a fire extinguishing method provided in an embodiment of the present disclosure.

[0035] Among them, 01, electromagnetic structure; 02, spring; 110, storage chamber; 120, sealing assembly; 121, sealing film; 122, penetration mechanism; 1221, electrostrictive part; 1222, piercing part; 123, transmission mechanism; 1231, first rotating shaft; 1232, second rotating shaft; 130, detection assembly; 140, control module; 150, first chamber; 160, second chamber; 170, release pipeline; 180, fastener; 190, sealing rubber ring; 200, sealing film fixing part; 210, pressure sensing part; 220, weight sensing part; 230, housing. DETAILED DESCRIPTION

[0036] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0038] In response to the problems in the background technology, the applicant has found through research that in the initial stage of a battery compartment fire, the scale of the fire is small and only a small amount of fire extinguishing medium needs to be sprayed. However, the valve structure in the conventional fire extinguishing system is simple and cannot be self-closed again after one spraying is completed, making it difficult to achieve the function of reusing the fire extinguishing system, thereby causing unnecessary loss and waste of the fire extinguishing medium. Moreover, after the fire extinguishing medium is fully released, it has a greater impact on the cabin environment, increasing the battery compartment recovery cost. In addition, since the conventional fire extinguishing system is a disposable product, if multiple fire extinguishing operations are required, the overall installation cost is relatively high.

[0039] In response to at least one of the above-mentioned problems, an embodiment of the present disclosure provides a fire extinguishing device, which is capable of timely adjusting the timing of opening and closing of the sealing assembly according to the fire situation, so that the amount of fire extinguishing medium can be controlled, while ensuring the fire extinguishing effect, avoiding the waste of fire extinguishing medium, and further realizing multiple releases of fire extinguishing medium. As a result, the damage to the cabin environment is relatively small, the post-disaster recovery cost is reduced, and the battery cabin recovery cost is significantly reduced.

[0040] The fire extinguishing device and the fire extinguishing method provided in the embodiments of the present disclosure are exemplarily described below in conjunction with the accompanying drawings.

[0041] Figure 1 This is a schematic diagram of the structure of a fire extinguishing device provided in an embodiment of the present disclosure. Figure 1 The fire extinguishing device includes: a storage chamber 110, a sealing component 120, a detection component 130 and a control module 140; the sealing component 120 is arranged in the storage chamber 110; the sealing component 120 and the detection component 130 are electrically connected to the control module 140 respectively; the storage chamber 110 is used to store the fire extinguishing medium; the detection component 130 is used to detect the fire characteristic data; the control module 140 is used to control the sealing component 120 to open based on the fire characteristic data meeting the fire extinguishing trigger condition, and control the sealing component 120 to close based on the fire characteristic data not meeting the fire extinguishing trigger condition.

[0042] Among them, the fire extinguishing medium is a substance used to extinguish fire, including but not limited to: gaseous fire extinguishing medium (such as CO2), liquid fire extinguishing medium (such as water, water-based fire extinguishing agent), solid fire extinguishing medium (such as dry powder), etc., and, in order to safely and reliably store the fire extinguishing medium, the material of the storage cavity 110 is a corrosion-resistant and rust-proof rigid material, which is not limited or elaborated here.

[0043] The sealing assembly 120 is used to control whether the storage chamber 110 is closed based on its own opening and closing state. Specifically, when the sealing assembly 120 is open, there will be an opening on the storage chamber 110, and the storage chamber 110 is in an unclosed state at this time, and the fire extinguishing medium in the storage chamber 110 can be released into the external environment; when the sealing assembly 120 is closed, there will be no opening on the storage chamber 110, and the storage chamber 110 is in a closed state at this time, and the fire extinguishing medium in the storage chamber 110 cannot be released into the external environment, thereby ensuring the sealing of the storage chamber 110.

[0044] Exemplarily, the sealing component 120 may be a pneumatic switch, a mechanical switch or other element with a controlled opening and closing function, and its specific structure may be set according to actual needs and is not limited here.

[0045] Among them, the fire characteristic data is data used to characterize the characteristics of the fire, including but not limited to: temperature data, smoke data (such as smoke concentration, particle size distribution), gas data (such as gas concentration, gas type), humidity data and other data. By obtaining the above-mentioned fire characteristic data, it is possible to determine whether it meets the fire extinguishing trigger conditions, so that when the fire extinguishing trigger conditions are met, the sealing component 120 is controlled to open, and when the fire extinguishing trigger conditions are not met, the sealing component 120 is controlled to close.

[0046] Among them, the fire extinguishing trigger condition is a judgment condition used to measure whether to control the sealing component 120 to open. Specifically, the fire extinguishing trigger condition includes: at least two fire characteristic data abnormalities, for example: if the temperature data for the current environment is detected to reach 80°C, and the concentration of carbon monoxide in the gas data exceeds 30ppm, and the concentration of carbon dioxide exceeds 1000ppm, it indicates that there is a fire in the current environment, which causes the above two fire characteristic data abnormalities, and the fire extinguishing trigger condition is met, and the sealing component 120 is controlled to open automatically so as to put out the fire in time; on the contrary, if only one fire characteristic data abnormality is detected, such as the temperature data for the current environment reaches 80°C, it indicates that there is no fire in the current environment, and the fire extinguishing trigger condition is not met, then the sealing component 120 is controlled to close automatically.

[0047] In addition, by setting the fire extinguishing trigger condition as: at least two fire characteristic data are abnormal, the comprehensiveness and accuracy of fire identification are improved, avoiding the control of opening of the sealing component 120 due to misjudgment of the fire, which in turn leads to waste of fire extinguishing medium.

[0048] Exemplarily, the detection component 130 can be set in multiple target fire extinguishing areas, such as: each detection component 130 is set at a corresponding battery cluster, and the number of detection components 130 can be multiple and arranged in parallel with each other; the detection component 130 can include a temperature sensor, a smoke detector, a gas sensor, a humidity sensor, a thermal imager, etc. The type and quantity of the detection component 130 can be set according to actual detection needs, which is not limited here.

[0049] The fire extinguishing device provided by the embodiment of the present disclosure includes: a storage chamber 110, a sealing component 120, a detection component 130 and a control module 140; the sealing component 120 is arranged in the storage chamber 110; the sealing component 120 and the detection component 130 are electrically connected to the control module 140 respectively; the storage chamber 110 is used to store the fire extinguishing medium; the detection component 130 is used to detect the fire characteristic data; the control module 140 is used to control the sealing component 120 to open based on the fire characteristic data meeting the fire extinguishing trigger condition, and to control the sealing component 120 to close based on the fire characteristic data not meeting the fire extinguishing trigger condition. In this way, the timing of opening and closing the sealing component 120 can be adjusted in time according to the fire occurrence situation, thereby realizing the precise control of the amount of the fire extinguishing medium, avoiding the waste of the fire extinguishing medium, and based on this, reducing the impact on the current environment such as the cabin environment, and retaining the original function of the cabin to the greatest extent possible.

[0050] The following explanation is carried out using the fire extinguishing medium being a gas fire extinguishing medium as an example.

[0051] In some embodiments, Figure 2 A schematic cross-sectional view of a sealing assembly provided in an embodiment of the present disclosure. Figure 1 Based on Figure 2 The sealing assembly 120 includes: a sealing film 121, a penetration mechanism 122 and a transmission mechanism 123; the sealing film 121 is wound and fixed on the transmission mechanism 123; the transmission mechanism 123 and the penetration mechanism 122 are electrically connected to the control module 140 respectively; the transmission mechanism 123 is used to drive the sealing film 121 to move along the transmission direction; the penetration mechanism 122 is at least used to release the fire extinguishing medium by penetrating the sealing film 121.

[0052] The transmission mechanism 123 at least includes a motor (not shown), a first rotating shaft 1231 and a second rotating shaft 1232, and the first rotating shaft 1231 and the second rotating shaft 1232 are spaced apart, one end of the sealing film 121 is wound around the first rotating shaft 1231, and the other end is wound around the second rotating shaft 1232, so as to ensure the flatness and tension of the sealing film 121. On this basis, after the control module 140 starts the motor, the motor can drive the first rotating shaft 1231 and the second rotating shaft 1232 to rotate synchronously along the set direction, and then drive the sealing film 121 to move accordingly, that is, the sealing film 121 can be unfolded from the first rotating shaft 1231 and wound around the second rotating shaft 1232, so as to drive the sealing film 121 to move along the transmission direction. For example, Figure 2 Taking the orientation shown as an example, the transmission direction may be from left to right, or from right to left.

[0053] Specifically, when there is a fire, the sealing assembly 120 needs to be controlled to open, and the control module 140 can control the penetration mechanism 122 to penetrate the sealing film 121 unfolded between the first rotating shaft 1231 and the second rotating shaft 1232, so that the sealing film 121 opens to release the fire extinguishing medium; when the fire extinguishing action is completed, the sealing assembly 120 needs to be controlled to close, and the control module 140 can control the first rotating shaft 1231 and the second rotating shaft 1232 to rotate synchronously for a preset number of times, so that the open area of ​​the sealing film 121 is wound onto the first rotating shaft 1231 or the second rotating shaft 1232, the damaged sealing film 121 is retracted, and the intact part of the sealing film 121 is unfolded and exposed for use in preparation for the next fire extinguishing.

[0054] In this way, by utilizing the transmission mechanism 123 to drive the sealing film 121 to move smoothly along the conveying direction, the opening area and the intact area of ​​the sealing film 121 can be accurately switched in a simple and convenient manner, thereby helping to reduce the complexity of the opening and closing design; in addition, the sealing film 121 is a flexible structure with high plasticity, and can flexibly adapt to the surface of the storage cavity 110 to ensure better sealing. At the same time, the sealing film 121 has low cost, is easy to replace, and has high practicality.

[0055] In some embodiments, Figure 1 Based on this, continue to refer to Figure 2 The penetration mechanism includes: an electrostrictive portion 1221 and a piercing portion 1222; the piercing portion 1222 and the electrostrictive portion 1221 are connected; and the electrostrictive portion 1221 and the control module 140 are electrically connected.

[0056] The electrostrictive portion 1221 is used to drive the piercing portion 1222 to move along a preset direction, and the piercing portion 1222 is used to pierce the sealing film 121 .

[0057] Specifically, the electrostrictive portion 1221 includes an electromagnetic structure 01 and a spring 02, and the piercing portion 1222 is arranged toward the sealing film 121. On this basis, when there is no need for fire extinguishing, the control module 140 can send an electrical signal to the electromagnetic structure 01, and the electromagnetic structure 01 is energized after receiving the electrical signal, thereby generating a magnetic force, forcing the spring to contract, thereby driving the piercing portion 1222 to move away from the sealing film 121 to avoid piercing the sealing film 121; or, when there is a need for fire extinguishing, the control module 140 will not send an electrical signal to the electromagnetic structure 01, so that the electromagnetic structure 01 is powered off, there is no magnetic force on the electromagnetic structure 01, and the spring is stretched, thereby driving the piercing portion 1222 to move toward the sealing film 121 to pierce the sealing film 121 to release the fire extinguishing medium.

[0058] It should be noted that, in the process of using the electrostrictive portion 1221 to drive the piercing portion 1222 to move along the preset direction, the electrostrictive portion 1221 has a fast response speed and good repeatability, which can ensure the consistency and accuracy of each piercing action and improve the working stability of the sealing assembly 120.

[0059] In addition, the degree of expansion and contraction of the spring in the electrostrictive portion 1221 can be controlled by an electrical signal. Specifically, when the electrical signal is strong, the magnetic force generated by the electromagnetic structure 01 is greater, and the degree of contraction of the spring is greater. If the power is cut off on this basis, the magnetic force on the electromagnetic structure 01 disappears, and the degree of stretching of the spring will also increase accordingly, so that the depth of the piercing portion 1222 penetrating the sealing membrane 121 will increase; conversely, when the electrical signal is weak, the magnetic force generated by the electromagnetic structure 01 and the degree of contraction of the spring are smaller. If the power is cut off on this basis, the degree of stretching of the spring will also be smaller, so that the depth of the piercing portion 1222 penetrating the sealing membrane 121 will decrease.

[0060] Exemplarily, the piercing portion 1222 may be a sharp element such as a needle or a blade, and the diameter of the piercing portion 1222 may be set according to the opening requirements of the sealing film 121, for example: the diameter along the set direction is consistent, or the diameter along the set direction increases, or the diameter along the set direction decreases, which is not limited here.

[0061] The disclosed embodiment combines the electrostrictive portion 1221, the piercing portion 1222 and the sealing film 121 together, so that the storage chamber can spray the fire extinguishing medium multiple times for fires of different scales, and the fire extinguishing device can be reused, thereby improving economy and environmental protection.

[0062] In some embodiments, Figure 1 Based on this, continue to refer to Figure 2The fire extinguishing device also includes: a first chamber 150, a second chamber 160 and a release pipe 170; the piercing portion 1222 and at least part of the sealing film 121 are located in the first chamber 150; the transmission mechanism 123 and at least part of the sealing film 121 are located in the second chamber 160; and the release pipe 170 is connected to the first chamber 150.

[0063] The first chamber 150 is at least used to accommodate and protect the piercing portion 1222 and at least a part of the sealing film 121 . Similarly, the second chamber 160 is at least used to accommodate and protect the transmission mechanism 123 and at least a part of the sealing film 121 .

[0064] For example, Figure 2 Taking the orientation and structure shown as an example, for the first chamber 150, the electrostrictive portion 1221 is located above the first chamber 150, the piercing portion 1222 is located at the top of the first chamber 150, and at least a portion of the sealing film 121 is arranged below the piercing portion 1222, and the portion of the sealing film 121 is a sealing film 121 unfolded between the first rotating shaft 1231 and the second rotating shaft 1232; for the second chamber 160, the number of the second chambers 160 is two and they are arranged opposite to each other, the first rotating shaft 1231 and the second rotating shaft 1232 are respectively located in a corresponding second chamber 160, and the first rotating shaft 1231 and the second rotating shaft 1232 are each wrapped with a portion of the sealing film 121.

[0065] Among them, the release pipeline 170 is a pipeline for releasing the fire extinguishing medium to the external environment. One end of the release pipeline 170 is connected to the first chamber 150, and the other end is open. In this way, after the sealing membrane 121 is opened, the fire extinguishing medium in the storage chamber 110 first leaks into the first chamber 150, and then is released to the external environment through the release pipeline 170 to extinguish the fire.

[0066] It is not difficult to understand that by setting up the first chamber 150, it is possible to prevent the fire extinguishing medium in the storage chamber 110 from being released in all directions after the sealing membrane 121 is opened, thereby preventing the fire extinguishing effect from being poor. The first chamber 150 serves to temporarily store the fire extinguishing medium so that the fire extinguishing medium can be released in a concentrated manner through the release pipeline 170 later, guiding the fire extinguishing medium to act on the fire location, thereby significantly improving the fire extinguishing effect.

[0067] In some embodiments, continue to refer to Figure 2 The fire extinguishing device further includes a fastener 180 for fastening the release line 170 and the first chamber 150 together.

[0068] Such an arrangement ensures the airtightness of the first chamber 150, and can prevent the fire extinguishing medium in the first chamber 150 from being released from the connection between the release pipeline 170 and the first chamber 150, thereby reducing the waste of the fire extinguishing medium.

[0069] In some embodiments, the second chamber 160 is loaded with an inert gas.

[0070] The inert gas is used to balance the pressure of the fire extinguishing medium in the storage chamber 110. Specifically, the fire extinguishing medium in the storage chamber 110 may cause changes in internal pressure when the temperature changes or is physically disturbed (such as vibration or impact). Therefore, by loading the inert gas in the second chamber 160, these pressure changes can be balanced by the compression and expansion of the inert gas. For example, when the pressure in the storage chamber 110 increases, the inert gas is compressed; when the pressure in the storage chamber 110 decreases, the inert gas expands, thereby maintaining the air pressure of the entire fire extinguishing device stable. Furthermore, the stable air pressure helps to maintain the sealing of the storage chamber 110, prevent the fire extinguishing medium inside it from leaking due to excessive pressure, and at the same time improve the safety of the fire extinguishing device.

[0071] In some embodiments, continue to refer to Figure 2 The fire extinguishing device further includes a sealing rubber ring 190 , which is located at a connection point where the sealing film 121 in the second chamber 160 extends to the first chamber 150 , and is used to seal the second chamber 160 .

[0072] Such an arrangement ensures the airtightness of the second chamber 160 , thereby isolating the second chamber 160 from the first chamber 150 , thereby avoiding the problems of gas leakage and crosstalk.

[0073] In some embodiments, Figure 3 A schematic diagram of a top view of a sealing assembly provided in an embodiment of the present disclosure. Figure 2 Based on Figure 3 The fire extinguishing device further includes a sealing film fixing member 200 .

[0074] The sealing film fixing member 200 is used to fix the sealing film 121 and seal the storage cavity 110 together with the sealing film 121. Figure 3 For example, the three-dimensional shape of the first chamber 150 may be cylindrical. In its corresponding top view, the cross-section of the first chamber 150 is circular. If the sealing film 121 is rectangular, it cannot completely cover the cross-section of the first chamber 150, and thus cannot seal the storage chamber 110. In this regard, by providing a sealing film fixing member 200, the remaining exposed portion of the cross-section of the first chamber 150 can be covered while tightening the sealing film 121, thereby sealing the storage chamber 110 together with the sealing film 121, thereby significantly improving the sealing effect of the storage chamber 110.

[0075] In some embodiments, Figure 1 Based on this, continue to refer to Figure 2The fire extinguishing device further includes: a pressure sensing unit 210 ; the pressure sensing unit 210 is electrically connected to the control module 140 and fixed to the storage chamber 110 ; the pressure sensing unit 210 is used to sense the internal pressure of the storage chamber 110 .

[0076] For example, the pressure sensing unit 210 may be located in the first chamber 150, specifically, below the sealing film 121 in the first chamber 150. In this way, when the storage chamber 110 releases the fire extinguishing medium, the pressure sensing unit 210 can sense the internal pressure of the storage chamber 110 more quickly and directly, thereby improving the accuracy of pressure sensing. In addition, by arranging the pressure sensing unit 210 in the first chamber 150, it can be integrated with other structures in the first chamber 150, which is more compact, thereby helping to reduce the volume of the fire extinguishing device, and at the same time, the installation is more convenient.

[0077] Specifically, the pressure sensing unit 210 senses the internal pressure of the storage chamber 110 in real time, and then sends the detected pressure data to the control module 140. The control module 140 analyzes and processes the pressure data after receiving it, including: comparing the pressure data with the secondary fire extinguishing drive pressure threshold to obtain a first comparison result, and determining whether the current internal pressure of the storage chamber 110 meets the requirements for secondary use of the fire extinguishing medium. The specific determination process of the pressure data by the control module 140 will be described in detail later.

[0078] In some embodiments, Figure 4 This is a schematic diagram of the structure of another fire extinguishing device provided in an embodiment of the present disclosure. Figure 4 The fire extinguishing device further includes: a weight sensing unit 220 ; the weight sensing unit 220 is electrically connected to the control module 140 and is located at the bottom of the storage cavity 110 ; the weight sensing unit 220 is used to sense the weight of the fire extinguishing medium in the storage cavity 110 .

[0079] The storage chamber 110 is placed horizontally, so that the gravity of the fire extinguishing medium in the storage chamber 110 is evenly distributed, so as to accurately measure the weight of the fire extinguishing medium in the storage chamber 110 and avoid measurement errors caused by uneven distribution of the fire extinguishing medium.

[0080] Specifically, the weight sensing unit 220 senses the weight of the fire extinguishing medium in the storage cavity 110 in real time, and then sends the detected weight data to the control module 140. The control module 140 analyzes and processes the weight data after receiving it, including: comparing the weight data with the secondary fire extinguishing weight threshold to obtain a second comparison result, and determining whether the weight of the fire extinguishing medium in the storage cavity 110 meets the requirements for secondary use of the fire extinguishing medium. The specific determination process of the weight data by the control module 140 will be described in detail later.

[0081] In some embodiments, in combination Figure 2 and Figure 4The fire extinguishing device further includes: a shell 230.

[0082] The housing 230 is used to at least accommodate and integrate the storage chamber 110, the sealing assembly, the first chamber 150, the second chamber 160, and the release pipe 170; the release pipe 170 extends out of the housing 230 to spray and release the fire extinguishing medium. For example, each structure in the housing 230 can be installed and fixed by means of a clamp, a limit hole, etc., which can be set according to actual installation requirements and is not limited here.

[0083] In this way, the shell 230 improves the compactness of the fire extinguishing device by accommodating the above structure to facilitate daily use. At the same time, the shell 230 protects the above structure from being affected and damaged by objective factors such as the external environment, thereby ensuring the reliability of the fire extinguishing device.

[0084] On the basis of the above-mentioned implementation manner, the embodiment of the present disclosure also provides a fire extinguishing method, which is implemented based on any one of the fire extinguishing devices provided in the above-mentioned embodiments and has corresponding beneficial effects; and the fire extinguishing method can be executed by a control device, for example, it can be executed by a control module of the fire extinguishing device, and the control device can be implemented in software and / or hardware.

[0085] In some embodiments, Figure 5 A flow chart of a fire extinguishing method provided in the embodiment of the present disclosure, referring to Figure 5 , the method comprises the following steps:

[0086] S310, detecting fire characteristic data.

[0087] Specifically, by acquiring fire characteristic data, it is convenient to further determine whether it meets the subsequent fire extinguishing trigger conditions, which is equivalent to detecting whether a fire has occurred, so as to achieve precise control of the opening timing (or closing timing) of the sealing assembly 120 based on the judgment result.

[0088] S320: Based on the fire characteristic data meeting the fire extinguishing trigger condition, the sealing component is controlled to be opened; and based on the fire characteristic data not meeting the fire extinguishing trigger condition, the sealing component is controlled to be closed.

[0089] Specifically, if the fire characteristic data meets the fire extinguishing trigger conditions, indicating that there is a fire in the current environment, the sealing assembly is controlled to open, for example: the control module destroys the sealing film through the puncture part to release the fire extinguishing medium through the release pipeline; conversely, if the fire characteristic data does not meet the fire extinguishing trigger conditions, indicating that there is no fire in the current environment, the sealing assembly is controlled to close.

[0090] In some embodiments, Figure 5 On this basis, the fire extinguishing triggering conditions include: at least two types of fire characteristic data are abnormal.

[0091] Among them, abnormal fire characteristic data at least includes: fire characteristic data is greater than or equal to the corresponding threshold. For example, the temperature data of the current environment reaching the temperature threshold is considered abnormal, and the gas data reaching the concentration threshold is considered abnormal, etc. The size of the corresponding threshold can be set according to the actual situation. Specifically, only when two or more fire characteristic data are abnormal can it be determined that there is a fire in the current environment, avoiding the misjudgment of judging that a fire has occurred due to only one type of fire characteristic data being abnormal, but there is actually no fire.

[0092] In some embodiments, Figure 5 On the basis of fire extinguishing methods, they also include:

[0093] Step 1: Detect the internal pressure of the storage chamber and the weight of the fire extinguishing medium in the storage chamber.

[0094] Specifically, by obtaining the internal pressure of the storage chamber and the weight of the fire extinguishing medium in the storage chamber, it is convenient to further determine whether the two meet the secondary use requirements of the fire extinguishing medium, so as to adaptively process the fire extinguishing medium in the storage chamber according to the determination result.

[0095] Step 2: Compare the internal pressure of the storage chamber with the secondary fire extinguishing driving pressure threshold to obtain a first comparison result, and / or compare the weight of the fire extinguishing medium in the storage chamber with the secondary fire extinguishing weight threshold to obtain a second comparison result.

[0096] The secondary fire extinguishing driving pressure threshold is: the pressure that needs to be met inside the storage chamber when the storage chamber drives the remaining fire extinguishing medium to be released again after the last fire extinguishing action is completed.

[0097] Specifically, the internal pressure of the storage chamber is compared with the secondary fire extinguishing driving pressure threshold. If it is determined that the internal pressure of the storage chamber is less than the secondary fire extinguishing driving pressure threshold, it indicates that the internal pressure of the storage chamber is insufficient to drive the remaining fire extinguishing medium to be released again, and the fire extinguishing medium remains in the storage chamber; if it is determined that the internal pressure of the storage chamber is greater than or equal to the secondary fire extinguishing driving pressure threshold, it indicates that the internal pressure of the storage chamber can drive the remaining fire extinguishing medium to be released again.

[0098] Among them, the secondary fire extinguishing weight threshold is: after the last fire extinguishing action is completed, when the remaining fire extinguishing medium in the storage chamber needs to be released again to extinguish the fire, the weight that the fire extinguishing medium needs to meet.

[0099] Specifically, the weight of the fire extinguishing medium in the storage chamber is compared with the secondary fire extinguishing weight threshold. If it is determined that the weight of the fire extinguishing medium in the storage chamber is less than the secondary fire extinguishing weight threshold, it indicates that the remaining fire extinguishing medium in the storage chamber is less than the secondary fire extinguishing weight threshold, which is insufficient for secondary fire extinguishing. If it is determined that the weight of the fire extinguishing medium in the storage chamber is greater than or equal to the secondary fire extinguishing weight threshold, it indicates that the remaining fire extinguishing medium in the storage chamber is more than the secondary fire extinguishing weight threshold, which is sufficient for secondary fire extinguishing.

[0100] It should be noted that the fire extinguishing medium in the storage chamber can be adaptively processed in combination with the first comparison result and the second comparison result. For example, if there is less fire extinguishing medium in the storage chamber but its internal pressure is relatively high, the fire extinguishing medium can be directly released to reduce the scale (or trend) of the fire as much as possible; or, if there is less fire extinguishing medium in the storage chamber and its internal pressure is relatively low, the fire extinguishing medium will be retained in the storage chamber, and the fire extinguishing medium can be manually added to the storage chamber until it is full, so as to reuse the fire extinguishing device, reduce the waste caused by discarding the fire extinguishing device, and then reduce the overall application cost. In this way, the actual capacity of the fire extinguishing medium that can be stored in the fire extinguishing device is larger, and then it can be used for multiple fire extinguishing, which is more economical and practical.

[0101] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0102] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fire extinguishing device, characterized in that: include: A storage chamber, a sealing assembly, a detection assembly, and a control module; The sealing component is arranged in the storage cavity; the sealing component and the detection component are electrically connected to the control module respectively; The storage chamber is used to store fire extinguishing medium; the detection component is used to detect fire characteristic data; The control module is used to control the sealing component to open based on the fire characteristic data meeting the fire extinguishing trigger condition, and to control the sealing component to close based on the fire characteristic data not meeting the fire extinguishing trigger condition.

2. The fire extinguishing device according to claim 1, characterized in that: The sealing assembly comprises: a sealing film, a penetration mechanism and a transmission mechanism; The sealing film is wound and fixed on the transmission mechanism; the transmission mechanism and the penetration mechanism are electrically connected to the control module respectively; The transmission mechanism is used to drive the sealing film to move along the conveying direction; the penetration mechanism is used at least to release the fire extinguishing medium by penetrating the sealing film.

3. The fire extinguishing device according to claim 2, characterized in that: The penetration mechanism comprises: an electrostrictive portion and a piercing portion; The piercing portion is connected to the electrostrictive portion; the electrostrictive portion is electrically connected to the control module.

4. The fire extinguishing device according to claim 3, characterized in that: Also includes: A first chamber, a second chamber, and a release line; The piercing portion and at least a portion of the sealing film are located in the first chamber; the transmission mechanism and at least a portion of the sealing film are located in the second chamber; and the release pipeline is connected to the first chamber.

5. The fire extinguishing device according to claim 4, characterized in that: The second chamber is filled with an inert gas.

6. The fire extinguishing device according to claim 1, characterized in that: Also includes: A pressure sensing unit; The pressure sensing unit is electrically connected to the control module and fixed to the storage cavity; The pressure sensing part is used to sense the internal pressure of the storage chamber.

7. The fire extinguishing device according to claim 1, characterized in that: Also includes: A weight sensing unit; The weight sensing part is electrically connected to the control module and is located at the bottom of the storage cavity; the weight sensing part is used to sense the weight of the fire extinguishing medium in the storage cavity.

8. A fire extinguishing method, characterized in that: The method is implemented based on the fire extinguishing device according to any one of claims 1 to 7; the method comprises: Detect fire characteristic data; Based on the fire characteristic data meeting the fire extinguishing trigger condition, the sealing component is controlled to be opened, and based on the fire characteristic data not meeting the fire extinguishing trigger condition, the sealing component is controlled to be closed.

9. The fire extinguishing method according to claim 8, characterized in that: The fire extinguishing triggering condition includes: at least two types of fire characteristic data are abnormal.

10. The fire extinguishing method according to claim 8, characterized in that: Also includes: detecting the internal pressure of the storage chamber and the weight of the fire extinguishing medium in the storage chamber; The internal pressure of the storage chamber is compared with the secondary fire extinguishing driving pressure threshold to obtain a first comparison result, and / or the weight of the fire extinguishing medium in the storage chamber is compared with the secondary fire extinguishing weight threshold to obtain a second comparison result.

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