Anti-detonation flame arrester

Abstract

The utility model discloses an anti-detonation flame arrester which comprises a sleeve, a first flame arresting core and a second flame arresting core are arranged in an inner cavity of the sleeve, and the first flame arresting core and the second flame arresting core are the same in structure. The first fire arresting core comprises two discs and channels, through holes are formed in the discs, and the through holes correspond to the channels one to one; a support is arranged in the center of the disc and used for fixing the disc. The diameter of the channel on the second fire-retardant core is smaller than that of the channel on the first fire-retardant core; a cooling channel is arranged between the first fire-retardant core and the second fire-retardant core, a gas inlet pipeline is arranged on the side wall of the sleeve, the gas inlet pipeline is used for introducing a refrigerant, the gas inlet pipeline is communicated with the cooling channel, and the cooling channel is used for cooling gas passing through the first fire-retardant core. According to the flame arrester, the two flame arresting cores are arranged in the flame arrester, and the cooling channel is formed between the two flame arresting cores, so that the flame arrester can adapt to various ignition substances, extinguish fire of the ignition substances and restrain flames according to the detonation principle, and the fire extinguishing efficiency of the flame arrester is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flame arresters, in particular to an anti-detonation flame arrester. Background Art

[0002] Detonation flame arresters are vital safety devices that play a key role in preventing flames from propagating in pipelines and related equipment in the industrial field. The working principle of flame arresters is to allow gas to pass through while using specific physical or chemical mechanisms to prevent the propagation of flames. Detonation, as a special combustion phenomenon, is triggered by the pressure and temperature associated with the shock wave, which propagates at supersonic speeds in the reactants. This propagation is attributed to the compression effect, that is, the shock wave compresses the unreacted gas, causing it to increase its temperature, thereby promoting the combustion reaction. The high pressure and temperature generated by detonation far exceed ordinary deflagrations, making it extremely destructive and dangerous.

[0003] However, there are some technical challenges and limitations facing detonation flame arresters. First, due to the wide variety of flammable substances in industrial applications, the combustion characteristics and detonation conditions of each substance are different. Therefore, it is difficult for flame arresters to ensure effective fire extinguishing effects for every flammable substance. This may lead to a decrease in the performance of flame arresters when dealing with certain specific substances, or even failure to prevent the spread of flames.

[0004] Secondly, when the flame arrester cannot effectively extinguish the fire, the burning material may continue to burn, causing further damage to the equipment and process. This will not only affect the normal progress of the production process, but may also lead to more serious safety accidents. In addition, the continued combustion of the burning material may also produce toxic gases and smoke, posing a threat to the health of workers. Utility Model Content

[0005] The utility model aims to solve the above-mentioned shortcomings and provides a detonation-proof flame arrester, which is expected to improve the problem that the current detonation-proof flame arrester is difficult to effectively extinguish fires of various igniting materials.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A detonation-proof flame arrester comprises a sleeve, wherein a first flame arrester core and a second flame arrester core are arranged in an inner cavity of the sleeve, and the first flame arrester core and the second flame arrester core have the same structure; the first flame arrester core comprises a disc and a channel, and the disc comprises two discs, and the disc is provided with through holes, and the through holes correspond to the channels one by one; a bracket is arranged at the center of the disc, and the bracket is used to fix the disc; the diameter of the channel on the second flame arrester core is smaller than the diameter of the channel on the first flame arrester core; a cooling channel is arranged between the first flame arrester core and the second flame arrester core, and an air inlet pipe is arranged on the side wall of the sleeve, and the air inlet pipe is used to pass a refrigerant, and the air inlet pipe is connected with the cooling channel, and the cooling channel is used to cool the gas passing through the first flame arrester core.

[0008] Furthermore, both ends of the sleeve are connected with pipes, and the pipes are connected to the two ends of the sleeve through a first flange and a second flange.

[0009] Furthermore, a flame retardant layer is provided on the inner wall of the sleeve, and the flame retardant layer is used to limit the combustion range of the ignition material in the sleeve.

[0010] Furthermore, a portion of the air intake pipe located outside the sleeve is provided with an air valve, and the air valve is used to control the opening and closing of the air intake pipe.

[0011] Furthermore, a connecting portion is provided at one end of the air inlet pipe away from the sleeve, and the connecting portion is connected to an external air pipe via a thread.

[0012] Furthermore, the first fire-blocking core and the second fire-blocking core are connected via the bracket, and the first fire-blocking core and the second fire-blocking core are fixed on the inner side wall of the sleeve.

[0013] Furthermore, a third flange is provided on the outer side wall of the sleeve, and the third flange is used to limit the shaking amplitude of the sleeve.

[0014] Furthermore, a cooling medium circulation device is provided in the cooling channel, and the cooling medium circulation device includes a cooling medium inlet pipe, a cooling medium outlet pipe and a cooling medium circulation pump; the cooling medium inlet pipe is connected to the air intake pipe and communicates with an external cooling medium source, and the cooling medium outlet pipe is also provided on the side wall of the sleeve and is used to discharge the heated cooling medium; the cooling medium circulation pump is provided inside the cooling medium circulation device, and is used to drive the cooling medium to circulate in the cooling channel.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model provides two fire arrester cores in the flame arrester and a cooling channel between the two fire arrester cores, so as to adapt to various ignition materials, extinguish the ignition materials, and suppress the flame by utilizing the detonation principle, thereby improving the fire extinguishing efficiency of the flame arrester. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the cross-sectional structure of the flame arrester of the utility model;

[0018] Figure 2 This is a schematic diagram of the fire-retardant core structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the cooling channel of the utility model.

[0021] Label description: 1. Sleeve; 2. First flange; 3. Second flange; 4. Flame retardant layer; 5. First flame retardant core; 51. Disc; 52. Channel; 53. Bracket; 6. Second flame retardant core; 7. Cooling channel; 71. Cooling medium inlet pipe; 72. Cooling medium outlet pipe; 73. Cooling medium circulation pump; 8. Air intake pipe; 9. Air valve; 10. Third flange; 111. Pipeline; 12. Connecting part. DETAILED DESCRIPTION

[0022] The utility model will be further described below in conjunction with the accompanying drawings.

[0023] Example 1.

[0024] like Figure 1 As shown, one embodiment of the utility model is a detonation-proof flame arrester, comprising a sleeve 1, wherein a first flame arrester core 5 and a second flame arrester core 6 are arranged in an inner cavity of the sleeve 1, and the first flame arrester core 5 and the second flame arrester core 6 have the same structure; the first flame arrester core 5 comprises a disc 51 and a channel 52, wherein the disc 51 comprises two discs, and the disc 51 is provided with through holes, and the through holes correspond to the channels 52 one by one; a bracket 53 is arranged at the center of the disc 51, and the bracket 53 is used to fix the disc 51; the diameter of the channel 52 on the second flame arrester core 6 is smaller than the diameter of the channel 52 on the first flame arrester core 5; a cooling channel 7 is arranged between the first flame arrester core 5 and the second flame arrester core 6, and an air inlet pipe 8 is arranged on the side wall of the sleeve 1, and the air inlet pipe 8 is used to pass a refrigerant, and the air inlet pipe 8 is connected with the cooling channel 7, and the cooling channel 7 is used to cool the gas passing through the first flame arrester core 5.

[0025] The sleeve 1 serves as the main shell of the flame arrester, and its internal space is used to accommodate the flame arrester core and other functional components; the first flame arrester core 5 is composed of two discs 51 and a channel 52; each disc is provided with a plurality of through holes. These through holes correspond one-to-one to the channels 52 for gas to pass through; the channel 52 is located between the two discs 51 and is the main path for gas circulation; the bracket 53 is located at the center of the disc 51 and is used to fix the two discs 51 to maintain its stability and structural integrity; the second flame arrester core 6 has a similar structure to the first flame arrester core 5, but the diameter of the channel 52 is smaller than the channel diameter of the first flame arrester core 5. The flame first passes through the first flame arrester core 5 and then enters the cooling channel 7, and then passes through the second flame arrester core 6 after cooling, so as to avoid inconsistent detonation conditions of some ignition materials, which makes it difficult for the flame arrester to achieve a fire extinguishing effect;

[0026] The cooling channel 7 is located between the first flame retardant core 5 and the second flame retardant core 6. Its function is to reduce the temperature of the gas passing through the first flame retardant core 5, further reducing the risk of flame propagation. The air intake pipe 8 is located on the side wall of the sleeve 1 and is connected to the cooling channel 7. The air intake pipe 8 is used to pass the refrigerant to further cool the flame passing through the first flame retardant core 5.

[0027] When the flame enters the flame arrester from the pipe 111, it first passes through the disc 51 and channel 52 of the first flame arrester core 5, where the flame and high-temperature particles are effectively blocked and eliminated; then it enters the cooling channel 7 for cooling treatment. Subsequently, since the channel diameter of the second flame arrester core 6 is smaller, the flow rate of the gas will be further reduced when passing through the second flame arrester core 6, thereby further reducing the risk of flame propagation. The gas after double flame arresting and cooling treatment is finally discharged from the outlet of the flame arrester, achieving the purpose of anti-detonation and flame arresting.

[0028] Example 2.

[0029] Another embodiment of the utility model is that both ends of the sleeve 1 are connected with pipes 111 , and the pipes 111 are connected to both ends of the sleeve 1 through a first flange 2 and a second flange 3 .

[0030] The pipe 111 is located at both ends of the sleeve 1 and is used to connect the flame arrester with external equipment. The diameter and length of the pipe 111 can be adjusted according to actual needs to meet different installation environments and process requirements. The first flange 2 and the second flange 3 are respectively located at both ends of the sleeve 1 and are used to connect with the pipe 111. The flanges are fastened by bolts or other fasteners to ensure the sealing and stability of the connection. The material of the flange is generally carbon steel, stainless steel or other corrosion-resistant materials to adapt to various working environments.

[0031] By using the first flange 2 and the second flange 3 to connect with the sleeve 1, the flame arrester of this embodiment has better sealing and stability, and can adapt to more complex installation environments and process requirements. At the same time, the flange connection method is also convenient for disassembly and maintenance, which improves the service life and safety of the flame arrester.

[0032] Example 3.

[0033] In one embodiment of the utility model, a flame retardant layer 4 is provided on the inner wall of the sleeve 1 , and the flame retardant layer 4 is used to limit the combustion range of the ignition material in the sleeve 1 .

[0034] The flame retardant layer 4 is located on the inner wall of the sleeve 1 and covers the entire inner surface. The flame retardant layer 4 is made of a flame retardant material and has good high temperature resistance and fire resistance, and can effectively prevent the flame from spreading inside the sleeve 1. The material and thickness of the flame retardant layer can be adjusted according to actual needs to meet different fire resistance requirements.

[0035] When the flame enters the flame arrester through the pipe 111, it will be processed inside the flame arrester and will not be released through the side wall of the flame arrester. The design of the flame retardant layer 4 can enhance the safety of the flame arrester during operation, while protecting the flame arrester and extending the service life of the flame arrester.

[0036] By providing a flame retardant layer 4 on the inner wall of the sleeve 1, the flame arrester of this embodiment adds an additional safety measure on the original basis, further improving the flame retardant ability and safety of the flame arrester. The flame retardant layer 4 can effectively limit the combustion range of the ignited material, prevent the fire from spreading, and protect the safety of equipment and personnel.

[0037] Example 4.

[0038] Another embodiment of the utility model is that a portion of the air intake pipe 8 located outside the sleeve 1 is provided with an air valve 9 , and the air valve 9 is used to control the opening and closing of the air intake pipe 8 .

[0039] The air valve 9 is installed at the portion of the air inlet pipe 8 located outside the sleeve 1. The air valve 9 is a controllable valve device. By operating the handle, knob or other control mechanism of the air valve 9, the opening and closing of the air inlet pipe 8 can be flexibly controlled. When the air valve 9 is closed, the air inlet pipe 8 will be completely closed to prevent the gas from entering the flame arrester; when the air valve 9 is opened, the air inlet pipe 8 will remain unobstructed, allowing the gas to enter the flame arrester for flame arresting treatment.

[0040] When the flame arrester needs to be used, the gas valve 9 is first operated to open it so that the air inlet pipe 8 remains unobstructed. External gas enters the flame arrester through the air inlet pipe 8, and then the gas valve 9 is closed; after the reaction in the flame arrester is completed, the gas exhaust channel can be opened to discharge the gas in the cooling channel 7 out of the flame arrester.

[0041] When the flame arrester is not needed or needs to be temporarily closed, the gas valve 9 can be operated to close it. At this time, the air inlet pipe 8 will be completely closed to prevent external gas from entering the flame arrester. In this way, the operating state of the flame arrester can be flexibly controlled to adapt to different usage scenarios and needs.

[0042] By arranging the gas valve 9 on the air inlet pipe 8, the flame arrester of this embodiment provides a more flexible and convenient control method. The user can open or close the flame arrester at any time according to actual needs, thereby improving the use efficiency and safety of the flame arrester.

[0043] Example 5.

[0044] In one embodiment of the present invention, a connecting portion 12 is provided at one end of the air inlet pipe 8 away from the sleeve 1 , and the connecting portion 12 is connected to an external air pipe through a thread.

[0045] The air inlet pipe 8 is located on the side wall of the sleeve 1 and is connected to the external gas source for introducing the gas into the flame arrester. One end of the air inlet pipe 8 is connected to the inside of the sleeve 1, and the other end is connected to the external air pipe through the connecting portion 12; the connecting portion 12 is located at the end of the air inlet pipe 8 away from the sleeve 1 and is designed with a threaded structure. The connecting portion 12 can match the corresponding thread on the external air pipe and achieve a firm connection by rotating and tightening. This connection method is simple and reliable, and is convenient for installation and disassembly.

[0046] When the flame arrester is needed, the air intake pipe 8 is first connected to the external air pipe through the connecting part 12. When connecting, the threaded part of the external air pipe is matched with the thread on the connecting part 12, and then rotated and tightened to ensure that the connection is firm and leak-proof; once the connection is completed, the external gas will enter the air intake pipe 8 through the external air pipe, and then enter the interior of the flame arrester.

[0047] In this way, the air intake pipe 8 is connected to the external air pipe through the connecting portion 12, making the installation and removal of the flame arrester more convenient and quick. At the same time, the threaded connection method also ensures the firmness and sealing of the connection, improving the use effect and safety of the flame arrester.

[0048] Example 6.

[0049] like Figure 2 As shown, another embodiment of the utility model is that the first fire-blocking core 5 and the second fire-blocking core 6 are connected by the bracket 53 , and the first fire-blocking core 5 and the second fire-blocking core 6 are fixed on the inner wall of the sleeve 1 .

[0050] The first fire-blocking core 5 and the second fire-blocking core 6 have the same structure, both comprising a disc 51 and a channel 52. Each disc 51 is provided with a through hole, and the through hole corresponds to the channel 52 one by one. A bracket 53 is provided at the center of the disc 51, and the bracket 53 is not only used to fix the disc 51, but also serves as a bridge connecting the first fire-blocking core 5 and the second fire-blocking core 6. Through the bracket 53, the first fire-blocking core 5 and the second fire-blocking core 6 can be stably connected together.

[0051] By improving the fixing method of the flame arrester core, the flame arrester of this embodiment not only improves the stability and reliability of the flame arrester core, but also simplifies the installation process and improves the overall performance of the flame arrester.

[0052] Example 7.

[0053] like Figure 3 As shown, in one embodiment of the utility model, a third flange 10 is provided on the outer side wall of the sleeve 1 , and the third flange 10 is used to limit the shaking amplitude of the sleeve 1 .

[0054] The third flange 10 is located on the outer wall of the sleeve 1, and its design and size are determined according to the actual application scenario. The third flange 10 is connected to the installation base (such as a pipe, wall, etc.) by bolts, welding or other fasteners, thereby limiting the shaking amplitude of the sleeve 1. This design can ensure that the flame arrester remains relatively stable when subjected to external impact or vibration, avoiding the fire blocking effect or safety hazards caused by shaking.

[0055] When the flame arrester is installed, the third flange 10 is tightly connected to the installation base, thereby limiting the swing amplitude of the sleeve 1. Under normal working conditions, the flame enters the flame arrester through the pipe 111, and after being processed, it is discharged from another pipe 111. Due to the effect of the third flange 10, even if the flame arrester is subjected to external impact or vibration, the sleeve 1 can maintain a relatively stable position, ensuring the consistency and reliability of the flame arresting effect.

[0056] By adding the third flange 10, the flame arrester of this embodiment not only improves its own stability, but also can better adapt to various complex working environments. This design makes the flame arrester more reliable in terms of detonation prevention and fire prevention, and effectively ensures the safety of equipment and personnel.

[0057] Example 8.

[0058] like Figure 4As shown, another embodiment of the utility model is that a cooling medium circulation device is arranged in the cooling channel 7, and the cooling medium circulation device includes a cooling medium inlet pipe 71, a cooling medium outlet pipe 72 and a cooling medium circulation pump 73; the cooling medium inlet pipe 71 is connected to the air intake pipe 8 and communicated with an external cooling medium source, and the cooling medium outlet pipe 72 is also arranged on the side wall of the sleeve 1 and is used to discharge the heated cooling medium; the cooling medium circulation pump 73 is arranged inside the cooling medium circulation device, and is used to drive the cooling medium to circulate in the cooling channel 7.

[0059] The cooling channel 7 is located between the first fire-blocking core 5 and the second fire-blocking core 6, and is used to cool the gas passing through the first fire-blocking core 5. A cooling medium circulation device is arranged inside the cooling channel 7.

[0060] Cooling medium circulation device:

[0061] The cooling medium inlet pipe 71 is connected to one end of the cooling channel 7 and communicates with an external cooling medium source, and is used to introduce the cooling medium into the cooling channel 7. The cooling medium outlet pipe 72 is also provided on the side wall of the sleeve 1, and is located at the other end of the cooling channel 7, and is used to discharge the heated cooling medium. The cooling medium circulation pump 73 is provided inside the cooling medium circulation device, and is used to drive the cooling medium to circulate in the cooling channel 7, so as to ensure that the cooling medium can fully contact with the high-temperature gas and improve the cooling effect.

[0062] The air inlet pipe 8 is located on the side wall of the sleeve 1 and communicates with the cooling channel 7 to introduce external gas into the flame arrester. Other related components, such as the air valve 9, the connecting part 12, the third flange 10, etc., can be configured according to actual needs.

[0063] Before the flame enters the flame arrester through the pipe 111, the first cooling medium circulation device starts to work, and the cooling medium circulation pump 73 drives the cooling medium to circulate in the cooling channel 7. The cooling medium enters the cooling channel 7 through the cooling medium inlet pipe 71. The cooling medium is used to exchange heat with the high-temperature gas, absorb the heat in the gas, and reduce the gas temperature. Before the flame is released from the flame arrester through another pipe 111, the heated cooling medium is discharged from the outside of the flame arrester through the cooling medium outlet pipe 72.

[0064] By adding a cooling medium circulation device, the flame arrester of this embodiment has significantly improved the cooling effect. The cooling medium can continuously and stably cool the high-temperature flame, ensuring that the flame reaches a lower temperature before entering the second flame arrester core 6, thereby improving the flame arresting effect and safety. At the same time, the design of the cooling medium circulation device also makes the flame arrester more energy-saving and environmentally friendly.

[0065] Example 9.

[0066] On the basis of the above-mentioned embodiments, the present invention may also adopt the following configuration mode, in order to improve the automation degree of the flame arrester, the flame arrester is inspected and cleaned by configuring an automatic maintenance and cleaning program, and the program is recorded.

[0067] Cleaning device: including brushes, nozzles, etc., used to automatically clean the dust and impurities inside the flame arrester; Maintenance reminder system: automatically reminds users to perform maintenance and servicing based on the usage and maintenance cycle of the flame arrester; Maintenance record system: records the maintenance history and repair records of the flame arrester to facilitate user query and management.

[0068] Its working principle is: the cleaning device automatically cleans the inside of the flame arrester regularly or as needed, removes accumulated dust and impurities, and keeps the flame arrester in good working condition; the maintenance reminder system automatically calculates and reminds users to perform maintenance and servicing based on the usage and maintenance cycle of the flame arrester to ensure the long-term stable operation of the flame arrester; the maintenance record system automatically records the maintenance history and repair records of the flame arrester, which is convenient for users to query and manage, and provides a reference for subsequent maintenance and servicing.

[0069] Example 10.

[0070] On the basis of the aforementioned embodiments, the present invention can also adopt the following setting mode. In order to monitor the internal working state of the flame arrester in real time, temperature sensors, pressure sensors, etc. are arranged at key positions inside and around the flame arrester to monitor the working state of the flame arrester in real time; wherein the data acquisition and processing unit is responsible for collecting sensor data, performing preliminary processing and analysis; an alarm device is also provided. Under abnormal circumstances, such as when the temperature or pressure exceeds the set threshold, the alarm device is triggered to emit an audible and visual alarm signal; the real-time data is transmitted to the remote monitoring center through a network connection to realize remote monitoring and management.

[0071] Its working principle is as follows: the sensor network monitors the temperature, pressure and other parameters inside the flame arrester and the surrounding environment in real time; the data acquisition and processing unit analyzes the sensor data to determine whether the flame arrester is in normal working condition; if an abnormal situation occurs, such as temperature or pressure exceeding the set threshold, the alarm device is immediately triggered and an audible and visual alarm signal is issued to alert on-site personnel; at the same time, after the remote monitoring center receives the abnormal data, it can immediately perform remote intervention and control to ensure the safe and stable operation of the flame arrester.

[0072] The "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when a specific feature, structure or characteristic is described in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the utility model.

[0073] Although the utility model is described herein with reference to a plurality of illustrative embodiments of the utility model, it should be understood that those skilled in the art may devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the disclosure, drawings, and claims of the present application, various modifications and improvements may be made to the components and / or layout of the subject combination layout. In addition to modifications and improvements to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A detonation flame arrester, comprising a sleeve (1), characterized in that: A first fire-blocking core (5) and a second fire-blocking core (6) are arranged in the inner cavity of the sleeve (1), and the first fire-blocking core (5) and the second fire-blocking core (6) have the same structure; The first fire-blocking core (5) comprises a disc (51) and a channel (52), wherein the disc (51) comprises two discs, and through holes are provided on the disc (51), and the through holes correspond to the channels (52) one by one; a bracket (53) is provided at the center of the disc (51), and the bracket (53) is used to fix the disc (51); The diameter of the channel (52) on the second fire-blocking core (6) is smaller than the diameter of the channel (52) on the first fire-blocking core (5); A cooling channel (7) is provided between the first flame retardant core (5) and the second flame retardant core (6); an air intake pipe (8) is provided on the side wall of the sleeve (1); the air intake pipe (8) is used to introduce a refrigerant; the air intake pipe (8) is connected to the cooling channel (7); and the cooling channel (7) is used to cool the gas passing through the first flame retardant core (5).

2. A detonation flame arrester according to claim 1, characterized in that: Both ends of the sleeve (1) are connected to a pipe (111), and the pipe (111) is connected to both ends of the sleeve (1) via a first flange (2) and a second flange (3).

3. A detonation flame arrester according to claim 1, characterized in that: The inner wall of the sleeve (1) is provided with a flame retardant layer (4), and the flame retardant layer (4) is used to limit the combustion range of the ignited material in the sleeve (1).

4. A detonation flame arrester according to claim 1, characterized in that: The portion of the air intake pipeline (8) located outside the sleeve (1) is provided with an air valve (9), and the air valve (9) is used to control the opening and closing of the air intake pipeline (8).

5. A detonation flame arrester according to claim 4, characterized in that: A connecting portion (12) is provided at one end of the air intake pipe (8) away from the sleeve (1), and the connecting portion (12) is connected to an external air pipe via a thread.

6. A detonation flame arrester according to claim 1, characterized in that: The first fire-blocking core (5) and the second fire-blocking core (6) are connected via the bracket (53), and the first fire-blocking core (5) and the second fire-blocking core (6) are fixed on the inner side wall of the sleeve (1).

7. A detonation flame arrester according to claim 1, characterized in that: A third flange (10) is provided on the outer side wall of the sleeve (1), and the third flange (10) is used to limit the shaking amplitude of the sleeve (1).

8. The detonation flame arrester according to claim 1, characterized in that: A cooling medium circulation device is provided in the cooling channel (7), and the cooling medium circulation device comprises a cooling medium inlet pipe (71), a cooling medium outlet pipe (72) and a cooling medium circulation pump (73); the cooling medium inlet pipe (71) is connected to the air intake pipe (8) and communicates with an external cooling medium source, and the cooling medium outlet pipe (72) is also provided on the side wall of the sleeve (1) and is used to discharge the heated cooling medium; the cooling medium circulation pump (73) is provided inside the cooling medium circulation device and is used to drive the cooling medium to circulate in the cooling channel (7).

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