Explosion suppression device and storage system

Abstract

The utility model belongs to the technical field of flammable and explosive medium storage safety protection, and particularly relates to an explosion suppression device and a storage system.The explosion suppression device comprises a first tank body, a second tank body and a third tank body, the spraying mechanism comprises at least one stage of spraying unit, and each stage of spraying unit is controlled to communicate with the first storage cavity of the first tank body; the pressure compensation mechanism is arranged on the first tank body and is used for adjusting the pressure in the first storage cavity; and the control mechanism is electrically connected with each stage of spraying unit of the spraying mechanism and the pressure compensation mechanism. Based on cooperation between the graded spraying mechanism and the pressure compensation mechanism, in the spraying process, all stages of spraying units can work cooperatively, the pressure compensation mechanism can adjust the pressure in the first storage cavity so as to compensate pressure loss in the first storage cavity, and therefore it can be ensured that the flow of a fire extinguishing agent is stable and distribution is uniform in the whole spraying process; and the explosion suppression effect of the explosion suppression device is greatly improved.

Description

Technical Field

[0001] This application belongs to the field of safety protection technology for the storage of flammable and explosive media, and particularly relates to an explosion suppression device and storage system. Background Technology

[0002] In chemical production, oil storage, and aviation industries, storage equipment for flammable and explosive media (such as chemical reactors, oil storage tanks, and hydrogen fuel storage tanks) faces a high risk of combustion and explosion during storage and transportation. When the ambient temperature around the storage equipment rises or it encounters an external ignition source, the flammable and explosive media inside can easily volatilize and leak, forming an explosive mixture, which can then lead to a combustion and explosion accident, causing huge economic losses and casualties. To reduce such risks, explosion suppression devices are widely used as key safety protection equipment. Their core principle is to rapidly release extinguishing agents when a hazard occurs, reducing the concentration and temperature of flammable gases inside the equipment, thereby suppressing the occurrence or spread of combustion and explosion.

[0003] Existing explosion suppression devices typically consist of a tank, an extinguishing agent storage chamber, and a spraying mechanism. During operation, they rely on the pre-stored pressure within the tank to release the extinguishing agent through the spraying mechanism. However, as the extinguishing agent is continuously sprayed, the pressure inside the tank gradually decreases, resulting in a smaller spray flow rate and uneven distribution of the extinguishing agent within the device. The concentration of the extinguishing agent is excessively high near the spray nozzle, while the concentration is insufficient in areas farther away, thus affecting the explosion suppression effect. Utility Model Content

[0004] This application aims to provide an explosion suppression device and storage system that can maintain stable pressure and achieve uniform release of extinguishing agent throughout the spraying process, thereby significantly improving the explosion suppression effect.

[0005] This application provides a first aspect of an explosion suppression device, comprising: a first tank having a first storage chamber for storing a fire extinguishing agent; a spraying mechanism disposed on the first tank and including at least one spraying unit, wherein each spraying unit is controlled to communicate with the first storage chamber of the first tank for spraying the fire extinguishing agent from the first storage chamber; a pressure compensation mechanism disposed on the first tank for adjusting the pressure within the first storage chamber during spraying; and a control mechanism electrically connected to each spraying unit of the spraying mechanism and the pressure compensation mechanism. The control mechanism is configured to control the operation of each spraying unit and the pressure compensation mechanism based at least on the pressure within the first storage chamber.

[0006] In an optional embodiment of this application, the spraying mechanism includes multi-stage spraying units, which are arranged sequentially along the axial direction of the first tank at the bottom. The control mechanism is configured to control different spraying units to operate according to different spraying pressure thresholds, and to control the pressure compensation mechanism to operate according to a compensation pressure threshold, wherein the compensation pressure threshold is less than the minimum spraying pressure threshold among the spraying pressure thresholds.

[0007] In an optional embodiment of this application, the spraying pressure thresholds corresponding to the multiple spraying units are sequentially reduced along the axial direction of the first tank and in the direction from the first tank toward the spraying mechanism.

[0008] In an optional embodiment of this application, multiple spraying units are sequentially activated along the axial direction of the first tank and in the direction from the first tank toward the spraying mechanism, and when a later spraying unit is activated, the previous spraying unit remains activated.

[0009] In an optional embodiment of this application, each level of the spraying unit includes a spraying body and multiple nozzles. Spray control valves are provided between the spraying body of the spraying unit closest to the first tank and the first tank, as well as between the spraying bodies of the multiple levels of spraying units. These spray control valves are electrically connected to the control mechanism. The spraying body communicates with the first storage chamber of the first tank through a corresponding spray control valve. Multiple nozzles are spaced circumferentially on the spraying body and communicate with it, used to spray the extinguishing agent from the first storage chamber outwards. The control mechanism is configured to open different spray control valves based on different spray pressure thresholds to control the operation of the corresponding spraying unit.

[0010] In an optional embodiment of this application, the spraying mechanism includes two-stage spraying units. The nozzles of each spraying unit have a multi-hole structure, and along the axial direction of the first tank and from the first tank toward the spraying mechanism, the two-stage spraying units are sequentially a first spraying unit and a second spraying unit. The first spraying unit and the second spraying unit have the same number of nozzles, with the orifice diameter increasing sequentially.

[0011] In an optional embodiment of this application, the spraying mechanism includes a three-stage spraying unit. The nozzles of each spraying unit have a multi-hole structure, and along the axial direction of the first tank and from the first tank toward the spraying mechanism, the three-stage spraying unit is sequentially a first spraying unit, a second spraying unit, and a third spraying unit. The number of nozzles corresponding to the first, second, and third spraying units increases sequentially, and the orifice diameter of the corresponding nozzles increases sequentially.

[0012] In an optional embodiment of this application, the pressure compensation mechanism includes: a second tank body disposed outside the first tank body and having a second storage cavity for storing inert gas; a connector disposed between the second tank body and the first tank body and connecting the second tank body and the first tank body; and a gas replenishment control valve disposed on the connector body and electrically connected to the control mechanism. The gas replenishment control valve is configured to, under the control of the control mechanism, connect the second tank body and the first tank body to replenish gas into the first storage cavity or disconnect the connection between the second tank body and the first tank body to stop gas replenishment.

[0013] In an optional embodiment of this application, the control mechanism includes: a pressure sensor disposed on the first tank body for collecting the pressure inside the first storage cavity; a temperature sensor disposed on the first tank body for collecting the ambient temperature around the first tank body; and a controller electrically connected to the pressure sensor and the temperature sensor for controlling the operation of the spraying units and the pressure compensation mechanism at each stage according to the ambient temperature and the pressure inside the first storage cavity.

[0014] A second aspect of this application provides a storage system comprising any of the explosion suppression devices described above and a flammable and explosive storage device, wherein the explosion suppression device is fixedly installed on the flammable and explosive storage device and is capable of spraying extinguishing agent toward the flammable and explosive storage device.

[0015] In summary, the solution provided in this application has at least the following beneficial effects:

[0016] The explosion suppression device provided in this application includes a spraying mechanism comprising at least one spraying unit. The number of spraying units can be specifically set according to actual usage. The working pressure range of the pressure compensation mechanism can be precisely adjusted according to different application scenarios, thus enabling the explosion suppression device of this application to adapt to different types of extinguishing agents and application scenarios, exhibiting strong versatility. Furthermore, based on the cooperation between the graded spraying mechanism and the pressure compensation mechanism, during the spraying process, each spraying unit can work collaboratively. The pressure compensation mechanism can adjust the pressure in the first storage chamber to compensate for pressure loss within the first storage chamber, thereby effectively solving the problem of uneven spraying caused by pressure attenuation during the spraying process in existing explosion suppression devices. This ensures stable flow and uniform distribution of the extinguishing agent throughout the spraying process, greatly improving the explosion suppression effect of the device. In addition, the explosion suppression device of this application has a simple structure, is easy to install and use, and can be widely applied in flammable and explosive locations such as oil storage tanks and chemical reaction vessels, demonstrating good application prospects and promotional value. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the specific embodiments of this application, the drawings used in the specific embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of an explosion suppression device according to an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of another explosion suppression device provided according to an embodiment of this application;

[0020] Figure 3 This is a schematic diagram of the structure of a storage system provided according to an embodiment of this application.

[0021] The attached icons are numbered as follows:

[0022] 00. Storage system;

[0023] 100. Explosion suppression device;

[0024] 1. First tank body; S1. First storage cavity;

[0025] 2. Spraying mechanism; 21. Spraying unit; 211. Spraying body; 212. Nozzle; 213. Spraying control valve; 21A. First spraying unit; 21B. Second spraying unit; 21C. Third spraying unit;

[0026] 3. Pressure compensation mechanism; 31. Second tank; 32. Connecting parts; 33. Gas replenishment control valve; S2. Second storage chamber;

[0027] 4. Control mechanism; 41. Pressure sensor; 42. Temperature sensor; 43. Controller;

[0028] 5. Pressure safety valve; 6. Filling port;

[0029] 200. Flammable and explosive storage equipment; 300. Fixtures. Detailed Implementation

[0030] To make the above and other features and advantages of this application clearer, the application is further described below with reference to the accompanying drawings. It should be understood that the specific embodiments given herein are for the purpose of explanation to those skilled in the art and are exemplary only, not restrictive.

[0031] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "a plurality of" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects.

[0032] This application provides an explosion suppression device that can be widely used in fields such as chemical production and oil storage, for example, in the safety control and explosion suppression of storage equipment for flammable and explosive media (such as oil storage tanks, chemical reaction vessels, etc.).

[0033] Figure 1 This is a schematic diagram of the structure of an explosion suppression device according to an embodiment of this application. Figure 2 This is a schematic diagram of another explosion suppression device provided according to an embodiment of this application.

[0034] Please see Figure 1 and Figure 2 The explosion suppression device 100 may include a first tank 1, a spraying mechanism 2, a pressure compensation mechanism 3, and a control mechanism 4.

[0035] The first tank 1 has a first storage chamber S1 for storing the extinguishing agent. Specifically, the first tank 1 can be made of high-strength stainless steel, and the wall thickness of the first tank 1 can be 3.0mm-4.5mm, so that the first tank 1 can withstand preset working pressure and temperature changes. The volume of the first tank 1 can be 20L-50L, which can be selected according to the volume of the application equipment and the explosion suppression requirements.

[0036] The extinguishing agent stored in the first storage chamber S1 can be a gaseous extinguishing agent or a water-based extinguishing agent, and the specific type of extinguishing agent can be selected according to the application scenario. For example, the gaseous extinguishing agent can be perfluorohexanone or heptafluoropropane, and the water-based extinguishing agent can include 30% ethylene glycol, 10% ammonium bicarbonate, and 60% water by volume percentage. Both types of extinguishing agents can effectively reduce the concentration of combustible gas and the ambient temperature to achieve the purpose of explosion suppression.

[0037] The spraying mechanism 2 is mounted on the first tank 1 and includes at least one spraying unit 21. Specifically, the number of spraying units 21 can be set according to the actual use. For example, the spraying mechanism 2 may include only one spraying unit 21, or it may include two spraying units 21, three spraying units 21, four spraying units 21, five spraying units 21, or more than five spraying units 21.

[0038] Each spraying unit 21 is controlled to communicate with the first storage chamber S1 of the first tank 1, and is used to spray the extinguishing agent in the first storage chamber S1 outward. Specifically, each spraying unit 21 can start working separately to spray the extinguishing agent outward when the pressure in the first storage chamber S1 reaches different spraying pressure thresholds, or it can start working simultaneously to spray the extinguishing agent outward when the pressure in the first storage chamber S1 reaches a certain spraying pressure threshold.

[0039] The pressure compensation mechanism 3 is installed on the first tank 1 and is used to adjust the pressure in the first storage chamber S1 during the spraying process of the spraying mechanism 2. Specifically, when the pressure in the first storage chamber S1 drops to a certain preset threshold, the pressure compensation mechanism 3 can replenish air into the first storage chamber S1 to compensate for the pressure loss in the first storage chamber S1 during the spraying process, until the pressure in the first storage chamber S1 reaches another preset threshold; alternatively, the pressure compensation mechanism 3 can replenish air into the first storage chamber S1 in real time and control the pressure in the first storage chamber S1 to be within a safe range to compensate for the pressure loss in the first storage chamber S1 during the spraying process.

[0040] The control mechanism 4 is electrically connected to the spraying units 21 at each stage of the spraying mechanism 2 and the pressure compensation mechanism 3, and the control mechanism 4 is configured to control the operation of the spraying units 21 at each stage and the pressure compensation mechanism 3 based on the pressure in the first storage chamber S1. Specifically, the control mechanism 4 can control at least one spraying unit 21 to start working based on the pressure in the first storage chamber S1, or it can control all spraying units 21 to start working simultaneously or sequentially. This embodiment of the application does not limit this.

[0041] In the explosion suppression device 100 of this application, the spraying mechanism 2 includes at least one spraying unit 21. The number of spraying units 21 can be specifically set according to actual usage. The working pressure range of the pressure compensation mechanism 3 can be precisely adjusted according to different application scenarios, thus enabling the explosion suppression device 100 of this application to adapt to different types of extinguishing agents and application scenarios, exhibiting strong versatility. Furthermore, based on the cooperation between the graded spraying mechanism 2 and the pressure compensation mechanism 3, during the spraying process of the spraying mechanism 2, each level of spraying unit 21 can work collaboratively. The pressure compensation mechanism 3 can adjust the pressure in the first storage chamber S1 to compensate for the pressure loss in the first storage chamber S1, thereby effectively solving the problem of uneven spraying caused by pressure attenuation during the spraying process of existing explosion suppression devices. This ensures that the flow rate of the extinguishing agent is stable and the distribution is uniform throughout the spraying process, greatly improving the explosion suppression effect of the explosion suppression device 100. In addition, the explosion suppression device 100 of this application has a simple structure, is easy to install and use, and can be widely used in flammable and explosive places such as oil storage tanks and chemical reaction vessels, showing good application prospects and promotional value.

[0042] In some embodiments, please refer to Figure 1 and Figure 2 The spraying mechanism 2 may include multi-stage spraying units 21, which are arranged sequentially along the axial direction of the first tank 1 at the bottom of the tank body 1. Specifically, the spraying units 21 may be set to 2 to 6 stages, that is, the number of spraying units 21 is 2 to 6.

[0043] The control mechanism 4 is configured to control the operation of different spraying units 21 according to different spraying pressure thresholds, and to control the operation of the pressure compensation mechanism 3 according to the compensation pressure threshold, wherein the compensation pressure threshold is less than the minimum spraying pressure threshold among the spraying pressure thresholds.

[0044] Specifically, when the pressure in the first storage chamber S1 reaches the first spray pressure threshold, the control mechanism 4 controls at least one spray unit 21 in the multi-stage spraying unit 21 to operate; when the pressure in the first storage chamber S1 reaches the second spray pressure threshold, the control mechanism 4 controls at least one spray unit 21 in the multi-stage spraying unit 21 to operate, and the second spray pressure threshold corresponds to a different spray unit 21 than the first spray pressure threshold; and so on. The compensation pressure threshold corresponding to the pressure compensation mechanism 3 is less than the smallest of the second spray pressure threshold and the first spray pressure threshold.

[0045] In this embodiment, since the spraying mechanism 2 is composed of multi-stage spraying units 21, different spraying units 21 can start working under different spraying pressure thresholds. When the pressure in the first storage chamber S1 decreases during the spraying process, the spraying mechanism 2 can still spray evenly based on the coordinated work of the multi-stage spraying units 21 and the timely compensation of the pressure compensation mechanism 3. This ensures that the flow rate of the extinguishing agent is stable and the distribution is uniform throughout the spraying process, which greatly improves the explosion suppression effect of the explosion suppression device 100. It can be widely used for safety protection in flammable and explosive places such as oil storage tanks and chemical reaction vessels.

[0046] In some embodiments, along the axial direction of the tank 1 and in the direction from the first tank 1 toward the spraying mechanism 2, the spraying pressure thresholds corresponding to the multi-stage spraying units 21 are sequentially decreased. That is, the spraying pressure threshold corresponding to the previous stage spraying unit 21 is greater than the spraying pressure threshold corresponding to the next stage spraying unit 21.

[0047] For example, in the case where the spraying mechanism 2 includes three spraying units 21 (namely, the first spraying unit 21A, the second spraying unit 21B, and the third spraying unit 21C), when the pressure in the first storage chamber S1 reaches the first spraying pressure threshold, the control mechanism 4 controls the first spraying unit 21A to operate; when the pressure in the first storage chamber S1 reaches the second spraying pressure threshold, the control mechanism 4 controls the second spraying unit 21B to operate, and the second spraying pressure threshold is less than the first spraying pressure threshold, with the first spraying unit 21A being the preceding spraying unit 21 of the second spraying unit 21B; when the pressure in the first storage chamber S1 reaches the third spraying pressure threshold, the control mechanism 4 controls the third spraying unit 21C to operate, and the third spraying pressure threshold is less than the second spraying pressure threshold, with the second spraying unit 21B being the preceding spraying unit 21 of the third spraying unit 21C. The compensation pressure threshold corresponding to the pressure compensation mechanism 3 is less than the third spraying pressure threshold.

[0048] In this embodiment, by successively reducing the spray pressure threshold corresponding to the multi-stage spraying unit 21, the multi-stage spraying unit 21 can be turned on and operated sequentially. By adapting different spraying units 21 to different pressures in the first storage chamber S1, the problem of uneven spraying caused by pressure decay during the spraying process of existing explosion suppression devices can be effectively solved. This ensures that the flow rate of the extinguishing agent is stable and the distribution is uniform throughout the spraying process, greatly improving the explosion suppression effect of the explosion suppression device 100.

[0049] In some embodiments, the multi-stage spraying units 21 are sequentially activated along the axial direction of the tank 1 and in the direction from the first tank 1 toward the spraying mechanism 2, and when the subsequent spraying unit 21 is activated, the previous spraying unit 21 remains activated. That is, when the pressure in the first storage cavity S1 decreases, the previous spraying unit 21 can work in coordination with the subsequent spraying unit 21.

[0050] In this embodiment, the multi-stage spraying unit 21 works in concert to effectively solve the problem of uneven spraying caused by pressure decay during the spraying process of existing explosion suppression devices. It can ensure that the flow rate of the extinguishing agent is stable and the distribution is uniform throughout the spraying process, which greatly improves the explosion suppression effect of the explosion suppression device 100.

[0051] In some embodiments, please refer to Figure 1 and Figure 2 Each spraying unit 21 includes a spraying body 211 and multiple nozzles 212. Spraying control valves 213 are provided between the spraying body 211 of the spraying unit 21 closest to the first tank 1 and between the spraying bodies 211 of the multi-stage spraying units 21. The spraying control valves 213 are electrically connected to the control mechanism 4. Specifically, the spraying control valves 213 can be, but are not limited to, electromagnetic control valves and pressure sensing valves.

[0052] The spraying body 211 is connected to the first storage chamber S1 of the first tank 1 via a corresponding spraying control valve 213. Multiple nozzles 212 are spaced circumferentially on the spraying body 211 and connected to it, used to spray the extinguishing agent from the first storage chamber S1. The nozzles 212 of each spraying unit 21 have a multi-hole structure. The nozzles 212 of the same spraying unit 21 have the same orifice diameter. The number and orifice diameter of the nozzles 212 of different spraying units 21 are adapted according to the design flow rate requirements to ensure uniform spray flow when each spraying unit 21 is activated.

[0053] The control mechanism 4 is configured to open different spray control valves 213 according to different set spray pressure thresholds, so as to control the operation of the corresponding spray unit 21.

[0054] In this embodiment, since the spraying mechanism 2 includes multi-stage spraying units 21, each spraying unit 21 can flexibly set the spraying pressure threshold and the number and aperture of the nozzles 212 according to actual needs. The working pressure range of the pressure compensation mechanism 3 can be precisely set according to different application scenarios to adapt to different types of fire extinguishing agents and application scenarios, and it has strong versatility.

[0055] In some embodiments, please refer to Figure 1 The spraying mechanism 2 may include two-stage spraying units 21. The nozzles 212 of each spraying unit 21 have a multi-hole structure. Along the axial direction of the first tank 1 and from the first tank 1 toward the spraying mechanism 2, the two-stage spraying units 21 are, in sequence, the first spraying unit 21A (i.e., the spraying unit 21 closer to the first tank 1) and the second spraying unit 21B. The first spraying unit 21A and the second spraying unit 21B have the same number of nozzles 212, and the orifice size is arranged to increase sequentially.

[0056] Specifically, both the first spraying unit 21A and the second spraying unit 21B can be equipped with four nozzles 212. The nozzle 212 orifice diameter of the first spraying unit 21A is 3mm, and the nozzle 212 orifice diameter of the second spraying unit 21B is 4mm. The spraying control valve 213 corresponding to the first spraying unit 21A (i.e., the spraying control valve 213 between the first spraying unit 21A and the first tank 1) is a pressure sensing valve, and the opening pressure threshold (i.e., the spraying pressure threshold corresponding to the first spraying unit 21A) is set to 1.5MPa. The spraying control valve 213 of the second spraying unit 21B (i.e., the spraying control valve 213 between the first spraying unit 21A and the second spraying unit 21B) is a pressure sensing valve, and the opening pressure threshold (i.e., the spraying pressure threshold corresponding to the second spraying unit 21B) is set to 1.2MPa. Therefore, the set working pressure range in the first storage chamber S1 of the first tank 1 can be 1.2-1.5MPa. Specifically, when the working pressure inside the first storage chamber S1 reaches 1.1 MPa, the pressure compensation mechanism 3 starts to replenish gas; when the working pressure inside the first storage chamber S1 reaches 1.5 MPa, the pressure compensation mechanism 3 stops replenishing gas. That is, the compensation pressure threshold of the pressure compensation mechanism 3 is 1.1 MPa.

[0057] In this embodiment, the control mechanism 4 first controls the spray control valve 213 corresponding to the first spraying unit 21A to open, and the extinguishing agent is released through the nozzle 212 under a pressure of 1.5 MPa. When the pressure in the first tank 1 drops to 1.2 MPa, the control mechanism 4 controls the spray control valve 213 corresponding to the second spraying unit 21B to open, and sprays in coordination with the first spraying unit 21A. During the spraying process, when the pressure in the first tank 1 drops to 1.1 MPa, the control mechanism controls the pressure compensation mechanism 3 to start working, and the pressure compensation mechanism 3 replenishes air into the first tank 1. When the pressure in the first tank 1 rises back to 1.5 MPa, the pressure compensation mechanism 3 stops replenishing air, and so on, replenishing the pressure in the first tank 1 in a cyclical manner.

[0058] In some embodiments, please refer to Figure 2 The spraying mechanism 2 includes three-stage spraying units 21. The nozzles 212 of each spraying unit 21 have a multi-hole structure. Along the axial direction of the first tank 1 and from the first tank 1 toward the spraying mechanism 2, the three-stage spraying units 21 are, in sequence, a first spraying unit 21A, a second spraying unit 21B, and a third spraying unit 21C. The number of nozzles 212 corresponding to the first spraying unit 21A, the second spraying unit 21B, and the third spraying unit 21C increases sequentially, and the orifice diameter of the corresponding nozzles 212 increases sequentially.

[0059] Specifically, the first spraying unit 21A can be equipped with three nozzles 212, each with an orifice diameter of 2mm. The spray control valve 213 corresponding to the first spraying unit 21A (i.e., the spray control valve 213 between the first spraying unit 21A and the first tank 1) is an electromagnetic control valve, and the opening pressure threshold (i.e., the spray pressure threshold corresponding to the first spraying unit 21A) is set to 1.4MPa. The second spraying unit 21B can be equipped with four nozzles 212, each with an orifice diameter of 3mm. The spray control valve 213 of the second spraying unit 21B (i.e., the spray control valve 213 between the first spraying unit 21A and the first tank 1) is an electromagnetic control valve, and the opening pressure threshold (i.e., the spray pressure threshold corresponding to the first spraying unit 21A) is set to 1.4MPa. The spray control valve 213 between the second spraying unit 21B is an electromagnetic control valve, with an opening pressure threshold (i.e., the spray pressure threshold corresponding to the second spraying unit 21B) set to 1.1 MPa. The third spraying unit 21C can be equipped with 5 nozzles 212, each with a 4 mm orifice. The spray control valve 213 of the third spraying unit 21C (i.e., the spray control valve 213 between the third spraying unit 21C and the second spraying unit 21B) is an electromagnetic control valve, with an opening pressure threshold (i.e., the spray pressure threshold corresponding to the third spraying unit 21C) set to 0.9 MPa. Therefore, the set working pressure range in the first storage chamber S1 of the first tank 1 can be 0.9-1.4 MPa. Specifically, when the working pressure in the first storage chamber S1 reaches 0.8 MPa, the pressure compensation mechanism 3 starts replenishing air; when the working pressure in the first storage chamber S1 reaches 1.4 MPa, the pressure compensation mechanism 3 stops replenishing air. That is, the compensation pressure threshold of the pressure compensation mechanism 3 is 0.8 MPa.

[0060] When the pressure inside the first tank 1 is 1.4 MPa, the control mechanism 4 first controls the spray control valve 213 corresponding to the first spraying unit 21A to open, and the extinguishing agent is released through the nozzle 212 of the first spraying unit 21A. When the pressure inside the first tank 1 drops to 1.1 MPa, the control mechanism 4 controls the spray control valve 213 corresponding to the second spraying unit 21B to open, spraying in coordination with the first spraying unit 21A. When the pressure inside the first tank 1 drops to 0.9 MPa, the control mechanism 4 controls the spray control valve 213 corresponding to the third spraying unit 21C to open, spraying in coordination with the first spraying unit 21A and the second spraying unit 21B. During the spraying process, when the pressure inside the first tank 1 drops to 0.8 MPa, the control mechanism 4 controls the pressure compensation mechanism 3 to start working, and the pressure compensation mechanism 3 replenishes air into the first tank 1. When the pressure inside the first tank 1 rises back to 1.4 MPa, the pressure compensation mechanism 3 stops replenishing air, and so on, replenishing the pressure inside the first tank 1 in a cyclical manner.

[0061] In this embodiment, the nozzle 212 adopts a multi-hole structure. The nozzle 212 of the same spraying unit 21 has the same orifice diameter, which can ensure that the spraying flow rate in the spraying unit 21 is uniform. The orifice diameter of the nozzle 212 of different spraying units 21 can be adapted according to the design flow rate requirements. The orifice diameter of the nozzle 212 of the spraying unit 21 that is opened later is appropriately increased, which can compensate for the flow loss caused by the slight decrease in pressure of the nozzle 212 of the preceding spraying unit 21, thereby improving the overall spraying uniformity.

[0062] In some embodiments, please refer to Figure 1 and Figure 2 The pressure compensation mechanism 3 may include a second tank 31, a connector 32, and a gas replenishment control valve 33.

[0063] The second tank 31 is disposed outside the first tank 1 and has a second storage chamber S2 for storing inert gas. Specifically, the inert gas can be nitrogen, and the initial pressure in the second storage chamber S2 of the second tank 31 is set higher than the working pressure in the first storage chamber S1 to ensure effective pressure replenishment.

[0064] A connector 32 is disposed between the second tank 31 and the first tank 1 and connects the two tanks. A gas replenishment control valve 33 is disposed on the connector 32 and electrically connected to the control mechanism 4. The gas replenishment control valve 33 is configured to, under the control of the control mechanism 4, connect the second tank 31 and the first tank 1 to replenish gas into the first storage chamber S1 or disconnect the connection between the second tank 31 and the first tank 1 to stop gas replenishment.

[0065] In this embodiment, when the pressure inside the first tank 1 reaches the compensation pressure threshold, the control mechanism 4 controls the gas replenishment control valve 33 to open, and the second tank 31 is connected to the first tank 1 to replenish inert gas into the first storage chamber S1 until the pressure inside the first storage chamber S1 rises back to the set upper limit value and then closes, thereby realizing dynamic compensation of the pressure inside the tank and maintaining constant pressure.

[0066] In some embodiments, please refer to Figure 1 and Figure 2 The control mechanism 4 includes a pressure sensor 41, a temperature sensor 42, and a controller 43.

[0067] The pressure sensor 41 is disposed on the first tank 1 and can be installed inside the first storage cavity S1 to collect the pressure inside the first storage cavity S1 and transmit the pressure signal to the controller 43.

[0068] Temperature sensor 42 is installed on the first tank 1 to collect the ambient temperature around the first tank 1 and transmit the temperature signal to controller 43. Temperature sensor 42 can be a high-temperature resistant sensor with a temperature detection range of 50℃-250℃. Temperature sensor 42 can be set with a corresponding activation temperature threshold according to the application scenario, such as 75±2℃. That is, when temperature sensor 42 detects that the ambient temperature reaches the activation temperature threshold, it sends a signal to controller 43, and controller 43 activates the explosion suppression procedure.

[0069] The controller 43 is electrically connected to the pressure sensor 41 and the temperature sensor 42, and is used to control the operation of the spraying units 21 and the pressure compensation mechanism 3 at each stage according to the pressure and temperature in the first storage chamber S1.

[0070] In some embodiments, in order to ensure that the extinguishing agent has sufficient diffusion speed and coverage, the set working pressure range in the first storage chamber S1 of the first tank 1 is 0.8-1.5MPa, which can effectively avoid excessive pressure from causing a load on the structure of the first tank 1 itself.

[0071] In some embodiments, please refer to Figure 1 and Figure 2 A pressure safety valve 5 is installed on the top of the first tank 1. The opening pressure of the pressure safety valve 5 is 1.2 times the upper limit of the working pressure of the first tank 1. The compensation pressure threshold for starting the pressure compensation mechanism 3 is 0.1-0.2 MPa lower than the lower limit of the working pressure of the first tank 1, and the upper limit for stopping the operation is consistent with the upper limit of the working pressure, so as to ensure that the pressure compensation is timely and does not exceed the safe range.

[0072] In some embodiments, please refer to Figure 1 and Figure 2 The first tank 1 is provided with a filling port 6 at the top, and a sealing cap is provided on the filling port 6. Here, fire extinguishing agent can be filled into the first tank 1 through the filling port 6, and the sealing cap is closed after filling is completed.

[0073] Figure 3 For a schematic diagram of the storage system provided according to an embodiment of this application, please refer to [link / reference]. Figure 3 This application embodiment also provides a storage system 00, which includes the explosion suppression device 100 in any of the above embodiments and a flammable and explosive storage device 200. The explosion suppression device 100 is fixedly installed on the flammable and explosive storage device 200 and can spray extinguishing agent toward the flammable and explosive storage device 200.

[0074] Please see Figure 3The explosion suppression device 100 can be fixedly installed on the flammable and explosive storage equipment 200 via the fastener 300. The flammable and explosive storage equipment 200 can be an oil storage tank or a chemical reaction vessel, used to store flammable and explosive media, such as industrial dust, flammable liquid fuels (e.g., liquid hydrogen), and flammable gas fuels. When the media in the flammable and explosive storage equipment 200 leaks and forms an explosive mixture, the explosion suppression device 100 can promptly and quickly release an extinguishing agent to reduce the concentration and temperature of the media inside the equipment, thereby suppressing the occurrence or spread of combustion and explosion.

[0075] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An explosion suppression device, characterized in that, include: The first tank (1) has a first storage chamber (S1) for storing fire extinguishing agent. The spraying mechanism (2) is disposed on the first tank (1) and includes at least one spraying unit (21). Each spraying unit (21) is controlled to communicate with the first storage chamber (S1) of the first tank (1) and is used to spray the extinguishing agent in the first storage chamber (S1) outward. Pressure compensation mechanism (3) is installed on the first tank (1) and is used to adjust the pressure in the first storage chamber (S1) during the spraying process of the spraying mechanism (2); and control mechanism (4) is electrically connected to the spraying units (21) of each level of the spraying mechanism (2) and the pressure compensation mechanism (3). The control mechanism (4) is configured to control the operation of each level of the spraying unit (21) and the pressure compensation mechanism (3) based at least on the pressure in the first storage chamber (S1).

2. The explosion suppression device according to claim 1, characterized in that, The spraying mechanism (2) includes a multi-stage spraying unit (21), which is arranged at the bottom of the first tank (1) and sequentially along the axial direction of the first tank (1). The control mechanism (4) is configured to control the operation of different spraying units (21) according to different spraying pressure thresholds, and to control the operation of the pressure compensation mechanism (3) according to the compensation pressure threshold, wherein the compensation pressure threshold is less than the minimum spraying pressure threshold among the spraying pressure thresholds.

3. The explosion suppression device according to claim 2, characterized in that, Along the axial direction of the first tank (1) and from the first tank (1) toward the spraying mechanism (2), the spraying pressure thresholds corresponding to the multi-stage spraying units (21) are sequentially reduced.

4. The explosion suppression device according to claim 3, characterized in that, Along the axial direction of the first tank (1) and from the first tank (1) toward the spraying mechanism (2), the multiple spraying units (21) are turned on in sequence, and when the next spraying unit (21) is turned on, the previous spraying unit (21) remains in the open state.

5. The explosion suppression device according to claim 2, characterized in that, Each level of the spraying unit (21) includes a spraying body (211) and multiple nozzles (212). Spraying control valves (213) are provided between the spraying body (211) of the spraying unit (21) closest to the first tank (1) and the first tank (1), as well as between the spraying bodies (211) of the multiple levels of the spraying unit (21). The spraying control valves (213) are electrically connected to the control mechanism (4). The spraying body (211) is connected to the first storage chamber (S1) of the first tank (1) through the corresponding spraying control valve (213). A plurality of nozzles (212) are arranged at intervals along the circumference of the spraying body (211) and are connected to the spraying body (211) to spray the extinguishing agent in the first storage chamber (S1) outward. The control mechanism (4) is configured to open different spray control valves (213) according to different spray pressure thresholds, so as to control the operation of the corresponding spray unit (21).

6. The explosion suppression device according to claim 5, characterized in that, The spraying mechanism (2) includes two-stage spraying units (21). The nozzles (212) of each spraying unit (21) are porous structures. Along the axial direction of the first tank (1) and from the first tank (1) toward the spraying mechanism (2), the two-stage spraying units (21) are, in sequence, the first spraying unit (21A) and the second spraying unit (21B). The number of nozzles (212) in the first spraying unit (21A) and the second spraying unit (21B) is the same, and the orifice diameter is arranged to increase sequentially.

7. The explosion suppression device according to claim 5, characterized in that, The spraying mechanism (2) includes three spraying units (21). The nozzles (212) of each spraying unit (21) are porous structures. Along the axial direction of the first tank (1) and from the first tank (1) toward the spraying mechanism (2), the three spraying units (21) are, in sequence, the first spraying unit (21A), the second spraying unit (21B) and the third spraying unit (21C). The number of nozzles (212) corresponding to the first spraying unit (21A), the second spraying unit (21B), and the third spraying unit (21C) increases sequentially, and the orifice diameter of the corresponding nozzles (212) increases sequentially.

8. The explosion suppression device according to any one of claims 1-7, characterized in that, The pressure compensation mechanism (3) includes: The second tank (31) is disposed outside the first tank (1) and has a second storage cavity (S2) for storing inert gas. Connector (32), disposed between the second tank (31) and the first tank (1) and connecting the second tank (31) and the first tank (1); and A gas replenishment control valve (33) is mounted on the connector (32) and electrically connected to the control mechanism (4); The gas replenishment control valve (33) is configured to connect the second tank (31) and the first tank (1) under the control of the control mechanism (4) to replenish gas into the first storage cavity (S1) or disconnect the connection between the second tank (31) and the first tank (1) to stop replenishing gas.

9. The explosion suppression device according to any one of claims 1-7, characterized in that, The control mechanism (4) includes: A pressure sensor (41) is installed on the first tank (1) to collect the pressure inside the first storage cavity (S1); A temperature sensor (42) is disposed on the first tank (1) for collecting the ambient temperature around the first tank (1); and The controller (43), electrically connected to the pressure sensor (41) and the temperature sensor (42), is used to control the operation of the spraying units (21) and the pressure compensation mechanism (3) at each stage according to the ambient temperature and the pressure in the first storage chamber (S1).

10. A storage system, characterized in that, The device includes the explosion suppression device (100) as described in any one of claims 1-9 and the flammable and explosive storage device (200), wherein the explosion suppression device (100) is fixedly installed on the flammable and explosive storage device (200) and is capable of spraying extinguishing agent toward the flammable and explosive storage device.

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