Explosion-proof flame arrester and tail gas treatment device

Abstract

The utility model relates to the technical field of diesel engine tail gas explosion prevention, in particular to an explosion-proof flame arrester and a tail gas treatment device. The explosion-proof flame arrester comprises an equipment main body, a cover plate and a flame-retardant filler, the equipment main body is provided with anti-explosion combination surfaces which are oppositely arranged, and each anti-explosion combination surface is provided with a plurality of air holes; one end of the equipment main body is open, and a filling cavity is formed inside; the cover plate is hinged to the equipment body and used for opening or closing the open end of the equipment body. And the filling cavity is filled with the fire-retardant filler. By arranging the hinged cover plate on the equipment main body, when the fire-retardant filler in the filling cavity needs to be maintained and replaced, the fire-retardant filler can be taken out by rotating the cover plate to open the open end of the equipment main body, the explosion-proof flame arrester has the characteristics of simple structure and convenience in operation, and compared with the prior art, the maintenance process of the explosion-proof flame arrester is simplified, and the maintenance efficiency is improved. And the operation efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of diesel engine exhaust gas explosion prevention technology, and in particular to an explosion-proof flame arrester and exhaust gas treatment device. Background Technology

[0002] A diesel engine exhaust flame arrester is a safety device used to prevent the propagation of flames or explosions through the exhaust system. Existing flame arresters using bead-based media mostly employ a closed structure, primarily consisting of a housing and bead-based media encapsulated within it, such as steel balls or glass beads.

[0003] This type of flame arrester has significant shortcomings in maintenance. Due to its enclosed structure, cleaning or replacing the internal medium requires complete disassembly of the entire device, a complex process that necessitates the use of multiple tools, and a single maintenance session typically takes 2 to 3 hours. This prolonged maintenance not only affects the continuous operation of the equipment but also reduces overall operational efficiency. Utility Model Content

[0004] (I) The problem to be solved by this utility model is that the maintenance of existing explosion-proof flame arresters is cumbersome and time-consuming.

[0005] (II) Technical Solution

[0006] To address the aforementioned technical problems, one embodiment of this utility model provides an explosion-proof flame arrester, comprising: a main body, a cover plate, and a flame-arresting filler;

[0007] The main body of the equipment has explosion-proof mating surfaces arranged opposite each other, and each explosion-proof mating surface is provided with a number of air holes; one end of the main body of the equipment is open, forming a filling cavity inside; the cover plate is hinged to the main body of the equipment and is used to open or close the open end of the main body of the equipment; the flame-retardant filler is filled in the filling cavity.

[0008] Furthermore, the main body of the device includes a frame and a mesh panel;

[0009] The frame is U-shaped; two mesh panels are provided, which are fixedly installed on the front and back of the frame respectively, and the mesh holes of the mesh panels form the air holes; the frame and the mesh panels together form the filling cavity.

[0010] Furthermore, a latch is provided at the open end of the main body of the equipment for fixing the cover plate when the cover plate closes the open end of the main body of the equipment.

[0011] Furthermore, a plurality of hinges are provided on the side of one of the explosion-proof mating surfaces at the open end of the main body of the equipment, and the cover plate is connected to the hinges;

[0012] The main body of the device also has a first side and a second side that are arranged opposite to each other, the first side and the second side being located between the two explosion-proof mating surfaces; the first side and / or the second side are provided with the latch.

[0013] Furthermore, a handle is fixedly provided on the side of the cover plate facing away from the main body of the equipment.

[0014] Furthermore, the fire-retardant filler includes a plurality of fire-retardant beads.

[0015] Furthermore, the frame comprises three rectangular columns welded together in sequence.

[0016] Another embodiment of this utility model also provides an exhaust gas treatment device, including an exhaust gas treatment box and the above-mentioned explosion-proof flame arrester;

[0017] The exhaust gas treatment box has an exhaust gas outlet;

[0018] The explosion-proof flame arrester is connected to the exhaust gas treatment box, and one of the explosion-proof mating surfaces covers the exhaust gas outlet.

[0019] Furthermore, the exhaust gas treatment box includes a box body and a pressure cover;

[0020] The exhaust port is located on the housing; the pressure cap is detachably mounted on the housing, and the explosion-proof flame arrester is located between the pressure cap and the housing.

[0021] The beneficial effects of this utility model are:

[0022] This utility model provides an explosion-proof flame arrester, comprising: a device body, a cover plate, and a flame-arresting filler; the device body has oppositely arranged explosion-proof mating surfaces, each of which has a plurality of air holes; one end of the device body is open, forming a filling cavity inside; the cover plate is hinged to the device body and is used to open or close the open end of the device body; the flame-arresting filler fills the filling cavity.

[0023] By installing a hinged cover plate on the main body of the equipment, the flame-arresting filler in the filling chamber can be easily removed by rotating the cover plate to open the open end of the main body. This design is simple in structure and easy to operate, simplifying the maintenance process of explosion-proof flame arresters compared to existing technologies and greatly improving operational efficiency. Tests have shown that the maintenance time for explosion-proof flame arresters has been reduced from the current 2-3 hours to 10 minutes. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 A schematic diagram of the structure of the explosion-proof flame arrester provided in the embodiment of this utility model;

[0026] Figure 2 This is a structural schematic diagram of the explosion-proof flame arrester provided in an embodiment of the present utility model. Figure 2 In the middle, the cover is in the open position;

[0027] Figure 3 This is a schematic diagram of the main structure of the equipment;

[0028] Figure 4 This is a schematic diagram of the cover plate structure;

[0029] Figure 5 A schematic diagram of the exhaust gas treatment device provided in another embodiment of this utility model;

[0030] Figure 6 An exploded view of an exhaust gas treatment device provided in another embodiment of this utility model.

[0031] Icons: 100 - Main body of equipment; 110 - Frame; 120 - Mesh panel; 130 - Explosion-proof mating surface; 140 - Filling cavity; 150 - Hinge; 160 - Lock;

[0032] 200 - Cover plate; 210 - Handle;

[0033] 300 - Exhaust gas treatment box; 310 - Box body; 311 - Exhaust gas emission port; 320 - Cover. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0037] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0038] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0039] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0041] One embodiment of this utility model provides an explosion-proof flame arrester, such as... Figures 1 to 4As shown, the device includes: a main body 100, a cover plate 200, and flame-retardant filler. One end of the main body 100 is open, forming a filling cavity 140 for accommodating the flame-retardant filler. The main body 100 has two opposing explosion-proof mating surfaces 130 for contacting the equipment in use. Each explosion-proof mating surface 130 has several vents, with both ends of the vents communicating with the outside and the filling cavity 140, respectively. The flame-retardant filler fills the filling cavity 140. During use, exhaust gas enters the filling cavity 140 through the vents of one of the explosion-proof mating surfaces 130, and after the exhaust gas is extinguished and flame-retarded by the flame-retardant filler, it exits the filling cavity 140 through the vents of the other explosion-proof mating surface 130. The cover plate 200 is hinged to the main body 100 of the equipment, specifically located at the open end of the main body 100. The cover plate 200 is used to open or close the open end of the main body 100 of the equipment. When maintenance of the explosion-proof flame arrester is required, the open end of the main body 100 of the equipment can be opened through the cover plate 200 and the flame arresting filler in the filling cavity 140 can be taken out. When the explosion-proof flame arrester is in normal use, the cover plate 200 closes the open end of the flame arrester to prevent the flame arresting filler from falling out of the filling cavity 140.

[0042] The explosion-proof flame arrester provided in this embodiment features a hinged cover plate 200 on the main body 100. When maintenance or replacement of the flame-arresting filler in the filling cavity 140 is required, the cover plate 200 can be rotated to open the open end of the main body 100, allowing the flame-arresting filler to be removed. This design is simple in structure and easy to operate. Compared to existing technologies, it simplifies the maintenance process of the explosion-proof flame arrester and greatly improves operational efficiency. Tests have shown that the maintenance time for the explosion-proof flame arrester has been reduced from the current 2-3 hours to 10 minutes.

[0043] In the optional technical solutions of this embodiment, such as Figures 1 to 4 As shown, the main body 100 of the equipment includes a frame 110 and a mesh plate 120. The frame 110 has a U-shaped structure, which is formed by welding three rectangular columns in sequence. The open side of the U-shaped structure is the open end of the main body 100. Two mesh plates 120 are provided, and the two mesh plates 120 are fixedly installed on the front and back of the frame 110 respectively, which can be fixed by welding or screwing. Each mesh plate 120 has several mesh holes, which are the air holes mentioned above. The frame 110 and the two mesh plates 120 together enclose the filling cavity 140 mentioned above.

[0044] In this embodiment, the main body 100 of the equipment is formed by connecting the frame 110 and two mesh panels 120. The main body 100 has a simple structure, strong integrity, fewer discrete parts, lower assembly difficulty, and eliminates the risk of parts loss during maintenance. It also improves the overall explosion-proof and pressure-resistant capabilities, resulting in stronger reliability under extreme operating conditions. Preferably, the mesh panels 120 and the frame 110 are laser-welded to form an integral main body 100 of the equipment.

[0045] Optionally, in this embodiment, the cuboid columns used to form the frame 110 can be made of U-shaped steel, so that the two mesh panels 120 can be welded to the inner side of the frame 110, thereby improving the explosion-proof and pressure-resistant capabilities of the main body of the equipment 100 and enhancing its reliability under extreme working conditions.

[0046] In other embodiments, the aforementioned vents can also be formed by opening holes in the steel plate, which can also achieve the purpose of allowing the exhaust gas in this embodiment to enter the filling cavity 140 through the vents, or to be discharged from the filling cavity 140 to the outside.

[0047] In this embodiment, the mesh plate 120 is rectangular, and the mesh holes on the mesh plate 120 are oblong holes. The longitudinal spacing of each oblong hole is preferably 3mm, and the transverse spacing is preferably 4mm.

[0048] In the optional technical solutions of this embodiment, such as Figures 1 to 4 As shown, the open end of the equipment body 100 is also provided with a latch 160. When the cover plate 200 closes the open end of the equipment body 100, the latch 160 can fix the cover plate 200, thereby preventing the cover plate 200 from opening on its own during operation and improving the reliability of the explosion-proof flame arrester.

[0049] In other embodiments, the cover plate 200 can also be mounted on the equipment body 100 via a hinge with high-strength damping, thus achieving self-locking when the cover plate 200 closes the open end of the equipment body 100. However, compared to fixing with the latch 160, its reliability is poor. Therefore, in this embodiment, it is preferred to fix the cover plate 200 with the latch 160.

[0050] Furthermore, in this embodiment, the main body 100 has a cuboid structure with four sides at its open end, two of which are located on two explosion-proof mating surfaces 130. Several hinges 150 are provided on one of the sides at the open end of the main body 100 located on the explosion-proof mating surface 130. All hinges 150 are spaced apart along the extension direction of this side. The cover plate 200 is connected to the hinges 150, thus hinged to the main body 100. Using hinges 150 to install the cover plate 200 results in a simple structure and high reliability. Moreover, the explosion-proof flame arrester in this embodiment is a "flip-top" type, enabling maintenance immediately upon opening the cover, greatly improving operational efficiency. Furthermore, the hinges 150 in this embodiment are preferably heavy-duty hinges to enhance the reliability of the explosion-proof flame arrester.

[0051] The explosion-proof flame arrester provided in this embodiment, such as Figures 1 to 4 As shown, the main body 100 of the equipment also has a first side and a second side that are arranged opposite to each other, and the first side and the second side are located between two explosion-proof mating surfaces 130. The aforementioned latch 160 may be provided on the first side, or on the second side, or the latch 160 may be provided on both the first side and the second side.

[0052] In this embodiment, by setting the latch 160 on the first side and / or the second side, the latch 160 can be prevented from interfering with the contact between the two explosion-proof mating surfaces 130 and the equipment in use, thereby improving the practicality of the explosion-proof flame arrester.

[0053] In a preferred embodiment, latches 160 are provided on both the first and second sides to ensure more even force distribution on the cover plate 200 and extend the service life of the hinge 150. The latch 160 includes a fixed part and a movable part; the fixed part is located on the cover plate 200, and the movable part is located on the device body 100. To improve the stability and installation strength of the latch 160, mounting grooves are provided on both the first and second sides, and the movable part of the latch 160 is fixedly disposed within the mounting groove.

[0054] In the optional implementation of this embodiment, such as Figure 1 , Figure 2 and Figure 4 As shown, the cover plate 200 is also provided with a handle 210 for the operator to hold on, so as to facilitate the operator to flip the cover plate 200.

[0055] In this embodiment, the handle 210 can be welded to the side of the cover plate 200 facing away from the main body 100. The handle 210 has a U-shaped integral structure and has a crossbar and vertical bars on both sides of the crossbar.

[0056] In an optional embodiment of this invention, the flame-retardant filler is flame-retardant beads, specifically stainless steel beads. The flame-retardant beads have a diameter of 5±0.1mm, a surface roughness Ra≤1.6μm, and a filling density of 4.5g / cm3. The use of stainless steel beads provides advantages such as high temperature resistance, optimized heat transfer, stable flame-retardant channels, and short flame quenching time.

[0057] The explosion-proof flame arrester provided in this embodiment of the invention involves inserting flame-arresting beads into the filling cavity 140 and compacting them. Then, the cover plate 200 is flipped to close the open end of the main body 100, and the latch 160 is locked. The explosion-proof flame arrester can then be installed into the equipment in use. Exhaust gas enters the filling cavity 140 through one of the vents on the explosion-proof mating surface 130. Under the action of the flame-arresting beads within the filling cavity 140, the exhaust gas is extinguished and flame-arrested, thus providing an explosion-proof function. When disassembling the explosion-proof flame arrester, the latch 160 is opened, the handle is held to flip the cover plate 200, and the main body 100 is tilted. The flame-arresting beads can then be discharged towards the center of the aggregate under their own weight.

[0058] The explosion-proof flame arrester provided in this embodiment is integrally welded and can be quickly disassembled without tools. This solves the problems of difficult, costly, and risky maintenance of explosion-proof flame arresters. It reduces the maintenance time and the time that operators and personnel are exposed to hazardous environments, significantly reduces annual maintenance costs, and reduces the failure rate of engines due to flame arrester blockage. At the same time, the hinge 150 can achieve 180° stepless hovering and can be opened and closed with one hand.

[0059] Another embodiment of this utility model also provides an exhaust gas treatment device, including an exhaust gas treatment box 300 and the above-mentioned explosion-proof flame arrester.

[0060] In this embodiment, the exhaust gas treatment box 300 has an exhaust gas inlet and an exhaust gas outlet 311. An explosion-proof flame arrester is installed on the exhaust gas treatment box 300, and one of the explosion-proof mating surfaces 130 of the explosion-proof flame arrester covers the exhaust gas outlet 311, so that the exhaust gas from the exhaust gas outlet 311 can enter the filling cavity 140.

[0061] Furthermore, the exhaust gas treatment device provided in this embodiment, such as Figure 5 and Figure 6As shown, the exhaust gas treatment box 300 includes a box body 310 and a pressure cover 320. The exhaust gas inlet and exhaust gas outlet 311 are both located on the box body 310. The pressure cover 320 is detachably installed on the box body 310 via bolts or other structures. An explosion-proof flame arrester is disposed between the pressure cover 320 and the box body 310. One explosion-proof mating surface 130 of the explosion-proof flame arrester faces the box body 310 and covers the exhaust gas outlet 311 on the box body 310. The other explosion-proof mating surface 130 faces the pressure cover 320, and the pressure cover 320 is provided with an exhaust hole corresponding to the explosion-proof mating surface 130. In use, the exhaust gas exits the box body 310 through the exhaust gas outlet 311, enters the filling cavity 140 through one of the explosion-proof mating surfaces 130, undergoes flame extinguishing treatment, exits the filling cavity 140 through the other explosion-proof mating surface 130, and is discharged to the external environment through the exhaust hole.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An explosion-proof flame arrester, characterized in that, The device body (100), the cover plate (200) and the fire blocking filler are included. The device body (100) has oppositely arranged explosion-proof joints (130), each of which is provided with a plurality of air holes; one end of the device body (100) is open, and the inside forms a filling cavity (140); the cover plate (200) is hinged to the device body (100) and is used to open or close the open end of the device body (100); the fire blocking filler is filled in the filling cavity (140). The device body (100) includes a frame (110) and a mesh plate (120).

2. The flame arrestor of claim 1, wherein The frame (110) is U-shaped; two mesh plates (120) are provided, and the two mesh plates (120) are fixedly arranged on the front and back of the frame (110), respectively; the mesh holes of the mesh plate (120) form the air holes; the frame (110) and the mesh plate (120) enclose the filling cavity (140). The open end of the device body (100) is provided with a lock catch (160) for fixing the cover plate (200) when the cover plate (200) closes the open end of the device body (100).

3. The flame arrestor of claim 1, wherein, The open end of the device body (100) is provided with a plurality of hinges (150) on the side of one of the explosion-proof joints (130); the cover plate (200) is connected with the hinges (150); 4. The flame arrestor of claim 3, wherein The device body (100) also has a first side and a second side arranged oppositely, and the first side and the second side are located between the two explosion-proof joints (130); the lock catch (160) is arranged on the first side and / or the second side. The first side and the second side are both provided with mounting grooves, and the lock catch (160) is arranged in each mounting groove.

5. The flame arrestor of claim 4, wherein, The cover plate (200) is fixedly provided with a handle (210) on the side away from the device body (100).

6. The flame arrestor of claim 1, wherein The fire blocking filler includes a plurality of fire blocking beads.

7. The flame arrestor of any one of claims 1 to 6, wherein the flame arrestor is configured to be installed in a housing of an electrical device. The frame (110) includes three cuboid columns welded in sequence.

8. The flame arrestor of claim 2, wherein, The tail gas treatment box (300) and the explosion-proof fire block according to any one of claims 1-8 are included.

9. An exhaust gas treatment device, characterized by The tail gas treatment box (300) has a tail gas discharge port (311). The explosion-proof fire block is connected with the tail gas treatment box (300), and one of the explosion-proof joints (130) covers the tail gas discharge port (311). The tail gas treatment box (300) includes a box body (310) and a gland (320).

10. The exhaust treatment device of claim 9, wherein, The tail gas discharge port (311) is located on the box body (310); the gland (320) is detachably arranged on the box body (310), and the explosion-proof fire block is arranged between the gland (320) and the box body (310). ​

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