Drawer type anti-explosion flame arrester

Abstract

The utility model discloses a drawer type explosion-proof flame arrester in the field of flame arresters, which comprises a main body, a plurality of beads and a gland, the beads are filled in the main body, the gland is mounted at an opening of the main body in a matched manner, and vent holes are formed in the gland and the opposite surface of the opening of the main body; the main body is arranged between the flame arrester pressing plate and the tail gas treatment box, the flame arrester pressing plate is connected with the tail gas treatment box through a connecting piece, and gas in the tail gas treatment box enters the main body through a vent hole in the main body and then enters an exhaust channel in the flame arrester pressing plate through a vent hole in the gland. And finally exhausting from an exhaust channel outlet. The main body of the flame arrester is arranged between the tail gas treatment box and the flame arrester pressing plate, when beads in the main body need to be cleaned, only the flame arrester pressing plate needs to be loosened, the main body is pulled out, the overall structure is simple, and disassembly and assembly are convenient.

Description

Technical Field

[0001] This utility model relates to the field of flame arresters, and in particular to a drawer-type explosion-proof flame arrester. Background Technology

[0002] Currently, there are two types of flame arresters for explosion-proof diesel engines: grid-type and bead-type. The commonly used grid-type flame arrester has a complex manufacturing process and high cost. After carbon buildup and blockage, it requires complete disassembly, individual cleaning of the grid plates, and reassembly. Although the blockage cycle is longer than that of the bead-type, it still involves significant workload and is very inconvenient to use. Bead-type flame arresters are less commonly used, mainly due to their short service life. If the beads are not cleaned or replaced promptly, carbon buildup will quickly cause caking, greatly affecting the diesel engine's performance and emissions. Existing bead-type flame arresters (utility model, patent number: ZL200920103430.0 "Bead-type Flame Arrester for Explosion-proof Diesel Engines in Mining") use a circular structure, and the embedded installation still presents inconvenience in installation and use. Utility Model Content

[0003] The purpose of this utility model is to provide a drawer-type explosion-proof flame arrester with a simple structure and convenient disassembly and assembly.

[0004] To solve the above technical problems, the following technical solution is adopted:

[0005] This utility model provides a drawer-type explosion-proof flame arrester, including a main body, beads and a pressure cap. A plurality of the beads are filled inside the main body, and the pressure cap is fitted into the opening of the main body. Ventilation holes are provided on the pressure cap and on the opposite side of the opening of the main body.

[0006] The main body is located between the flame arrester pressure plate and the exhaust gas treatment box. The flame arrester pressure plate and the exhaust gas treatment box are connected by a connector. The gas in the exhaust gas treatment box enters the main body through the vent on the main body, then enters the exhaust channel on the flame arrester pressure plate through the vent on the pressure plate, and finally exits from the exhaust channel outlet.

[0007] Optionally, the main body includes an outer frame, a handle, and a bottom mesh plate. The bottom mesh plate is provided with the vent hole, which is elongated. The bottom mesh plate is welded to the outer frame, and the handle is welded to the outer wall of the outer frame.

[0008] Optionally, the outer frame is a frame structure formed by welding four rectangular stainless steel blocks.

[0009] Optionally, the main body is provided with a fixing seat inside, the outer edge of the fixing seat is provided with a baffle, the fixing seat is provided with a mounting hole, the pressure cap is installed at the opening of the main body by a fixing bolt, one end of the fixing bolt located inside the main body is connected to the mounting hole, and the fixing seat is reserved with space for the height of the baffle and the thickness of the pressure cap in the direction of the pressure cap.

[0010] Optionally, after the fixing bolt installs the gland at the opening of the main body, the height of one end of the fixing bolt on the outer surface of the gland is lower than the surface of the main body.

[0011] Optionally, the cover includes a cover mesh plate and a fixing groove on the cover mesh plate. The cover mesh plate has a rectangular structure and the fixing groove is provided at the four top corners. The cover mesh plate is installed at the opening of the main body by fixing bolts cooperating with the fixing groove.

[0012] Optionally, the connector includes a pin.

[0013] Optionally, the exhaust gas treatment box has a through hole on its surface for mounting the main body, and a plurality of pins are provided on the outer edge of the through hole. The flame arrester pressure plate has a round hole that cooperates with the pins. The pins and the round hole cooperate to press the flame arrester pressure plate tightly above the main body.

[0014] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0015] The main body of the flame arrester of this utility model is set between the exhaust gas treatment box and the flame arrester pressure plate. When it is necessary to clean the beads inside the main body, simply loosen the flame arrester pressure plate and pull out the main body. The overall structure is simple and easy to disassemble and assemble.

[0016] The upper and lower end faces of the main body of this utility model are in close contact with the exhaust gas treatment box and the flame arrester pressure plate. The upper and lower end faces are provided with long strip-shaped vent holes, which can increase the size of the vent holes, avoid clogging of the vent holes, and improve the service life. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the installation status of the drawer-type explosion-proof flame arrester in an embodiment of this utility model;

[0018] Figure 2 This is a split view of the installation structure of the drawer-type explosion-proof flame arrester in this embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the disassembly structure of the drawer-type explosion-proof flame arrester in this embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the disassembled structure of the drawer-type explosion-proof flame arrester in an embodiment of this utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the drawer-type explosion-proof flame arrester in this embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the cover structure of the drawer-type explosion-proof flame arrester in an embodiment of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Main body; 11. Outer frame; 12. Handle; 13. Fixing base; 14. Baffle; 15. Bottom mesh plate; 2. Beads; 3. Pressure cap; 31. Pressure cap mesh plate; 32. Fixing groove; 4. Fixing bolts; 5. Exhaust gas treatment box; 51. Through hole; 6. Flame arrester pressure plate; 7. Vent hole; 8. Exhaust passage. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use.

[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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. Example 1

[0027] like Figure 1 , Figure 2 , Figure 4 As shown, this embodiment provides a drawer-type explosion-proof flame arrester, including a main body 1, beads 2 and a pressure cap 3. A plurality of the beads 2 are filled inside the main body 1, and the pressure cap 3 is fitted into the opening of the main body 1. Ventilation holes 7 are provided on the pressure cap 3 and on the opposite side of the opening of the main body 1.

[0028] The main body 1 is disposed between the flame arrester pressure plate 6 and the exhaust gas treatment box 5, and the flame arrester pressure plate 6 and the exhaust gas treatment box 5 are connected by a connector.

[0029] The exhaust gas treatment box 5 has a through hole 51 with the same shape as the main body 1 on its upper surface. The through hole 51 connects to the inside of the exhaust gas treatment box 5. The bottom of the main body 1 is set in the through hole 51. After the gas in the exhaust gas treatment box 5 enters the main body 1 through the vent hole 7 on the main body 1, it enters the exhaust channel 8 on the flame arrester pressure plate 6 through the vent hole 7 on the pressure cover 3, and finally exits from the outlet of the exhaust channel 8. Example 2

[0030] This embodiment provides a drawer-type explosion-proof flame arrester based on Embodiment 1, with the following differences:

[0031] like Figure 2 , Figure 5 As shown, the main body 1 includes an outer frame 11 and a bottom mesh plate 15. The outer frame 11 is a frame-like structure formed by welding four rectangular stainless steel pieces. The outer edge surfaces at the top and bottom openings are flat, allowing it to contact the exhaust gas treatment box 5 and the flame arrester pressure plate 6 smoothly, preventing gas from overflowing from the connection between the exhaust gas treatment box 5 and the flame arrester pressure plate 6. A bottom mesh plate 15 is welded to the bottom of the outer frame 11. Ventilation holes 7 are evenly distributed on the bottom mesh plate 15, and their shape can be elongated. Ventilation holes 7 are also evenly arranged on the pressure cap 3 installed on the main body 1. The ventilation holes 7 on the bottom mesh plate 15 and the pressure cap 3 are the same in size and distribution. Gas enters and exits the main body 1 through the ventilation holes 7 on the main body 1 and the pressure cap 3. A handle 12 is welded to one side of the outer frame 11. After pulling the main body 1 out of the exhaust gas treatment box 5 and the flame arrester pressure plate 6 using the handle 12, the beads 2 inside the main body 1 can be cleaned. The beads 2 inside the main body 1 are closely arranged. The beads can be made of metal, ceramic or composite materials. After the gas passes through the internal bead 2, the gas comes into contact with the surface of the bead 2 and the temperature drops, thus achieving the effect of explosion-proof and fire-retardant.

[0032] Fixing seats 13 are welded at the four apex corners inside the main body 1. The fixing seats 13 are triangular structures and are tightly attached between the two inner walls. The fixing seats 13 are provided with mounting holes. The outer edge of the fixing seats 13 is provided with baffles 14. The fixing seats 13 are located at the end of the main body 1 near the upper surface. The distance between the fixing seats 13 and the edge of the upper surface is sufficient to install the baffles 14 and the pressure cap 3. The pressure cap 3 is installed on the main body 1 by fixing bolts 4. The end of the fixing bolts 4 located inside the main body is connected to the mounting hole. The highest position of the end located outside the main body does not exceed the upper edge of the outer frame 11, so as to achieve close contact between the edge of the outer frame 11 of the main body 1 and the lower surface of the flame arrester pressure plate 6. The gas inside the main body 1 enters the exhaust channel 8 on the flame arrester pressure plate 6 directly through the vent hole 7 on the pressure cap 3, preventing the gas from overflowing from the connection between the flame arrester pressure plate 6 and the main body 1.

[0033] like Figure 5 , Figure 6 As shown, the cover 3 includes a cover mesh plate 31. The cover mesh plate 31 has a fixing groove 32 welded at its four corners. One end of the fixing bolt 4 passes through the fixing groove 32 and engages with the mounting hole on the fixing seat 13 to install the cover mesh plate 31 at the opening of the main body 1.

[0034] like Figure 2 , Figure 3 , Figure 5 As shown, the exhaust gas treatment box 5 has an air inlet on its side wall, through which gas enters the exhaust gas treatment box for treatment. A rectangular through-hole 51 is formed on the upper surface of the exhaust gas treatment box 5, used for mounting the main body 1. An exhaust channel 8 is provided on the upper surface of the flame arrester pressure plate 6. The connection between the exhaust gas treatment box 5 and the flame arrester pressure plate is a pin. Several pins are provided on three sides of the outer edge of the through-hole 51. The edge of the flame arrester pressure plate 6 has round holes that mate with the pins. When the round holes mate with the pins, the flame arrester pressure plate 6 is pressed tightly against the main body 1. A handle 12 welded to the outside of the main body 1 is provided on one side of the outer edge of the through-hole 51 where no pins are provided. During disassembly, the flame arrester pressure plate 6 is moved upwards from the pins, and the main body 1 is pulled out from the surface of the exhaust gas treatment box 5 using the handle for cleaning. When in use, the gas enters the exhaust gas treatment box 5 through the air inlet and is then treated. It then enters the main body 1 through the vent 7. After being cooled by the beads 2 inside the main body 1, the gas is discharged through the exhaust channel 8 on the flame arrester pressure plate 6.

[0035] The drawer-type explosion-proof flame arrester provided in this embodiment has a simple structure. The main body 1 is installed between the exhaust gas treatment box 5 and the flame arrester pressure plate 6, making it easy to install and disassemble. It uses densely packed beads 2 to reduce gas temperature for flame arrest and explosion prevention. The outer frame 11 is welded as a whole, resulting in a simple structure and reduced component costs. The elongated vent holes 7 on the bottom mesh plate 15 and the pressure cover mesh plate 31 can be enlarged to reduce the probability of carbon buildup and increase the effective service life. Installation and disassembly are very convenient during use. The components can be quickly removed, replaced, or cleaned after cleaning within a short service life. This ensures that the engine exhaust clearance remains in good condition and reduces the labor intensity and skill requirements for drivers and workers cleaning the flame arrester.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A drawer-type explosion-proof flame arrestor characterized by comprising: The application relates to a device for preventing gas leakage, which comprises a main body, beads and a cover, a plurality of the beads are filled in the main body, the cover is matchedly installed at the opening of the main body, and air holes are formed on the cover and the opposite side of the opening of the main body. The main body is arranged between a fire arrester pressing plate and a tail gas treatment box, the fire arrester pressing plate and the tail gas treatment box are connected through a connecting piece, gas in the tail gas treatment box enters the main body through the air holes on the main body, then enters an exhaust passage on the fire arrester pressing plate through the air holes on the cover, and finally is discharged from the outlet of the exhaust passage.

2. The drawer-type explosion-proof flame arrestor according to claim 1, characterized in that, The main body comprises an outer frame, a handle and a bottom net plate, the bottom net plate is provided with the air holes, the air holes are long strip-shaped, the bottom net plate is welded on the outer frame, and the handle is welded on the outer side wall of the outer frame.

3. The drawer-type explosion-proof flame arrestor according to claim 2, characterized in that, The outer frame is a frame-shaped structure formed by welding four cuboid stainless steels.

4. The drawer-type explosion-proof flame arrestor according to claim 1, wherein The main body is internally provided with a fixing seat, the outer edge of the fixing seat is provided with a baffle, the fixing seat is provided with a mounting hole, the cover is mounted at the opening of the main body through a fixing bolt, one end of the fixing bolt in the main body is connected with the mounting hole in a matched mode, and the fixing seat is reserved with a space with the height of the baffle and the thickness of the cover in the direction of the cover.

5. The drawer-type explosion-proof flame arrestor according to claim 4, characterized in that, After the cover is mounted at the opening of the main body through the fixing bolt, the height of one end of the fixing bolt on the outer surface of the cover is lower than the surface of the main body.

6. The drawer-type explosion-proof flame arrestor according to claim 1, wherein The cover comprises a cover net plate and fixing grooves on the cover net plate, the cover net plate is a rectangular structure, the fixing grooves are arranged at four corners, and the cover net plate is mounted at the opening of the main body through the fixing bolt and the fixing grooves.

7. The drawer-type explosion-proof flame arrestor according to claim 1, wherein The connecting piece comprises a pin rod.

8. The drawer-type explosion-proof flame arrestor according to claim 7, characterized in that The surface of the tail gas treatment box is provided with a through hole for mounting the main body, the outer edge of the through hole is provided with a plurality of pin rods, the fire arrester pressing plate is provided with round holes matched with the pin rods, the pin rods and the round holes are matched, and the fire arrester pressing plate is pressed on the top of the main body.

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