Repeated flameless relief device

Abstract

The utility model discloses a repeated flameless relief device which comprises a flange plate, a relief opening is formed in the flange plate, a supporting plate is arranged in the relief opening, a mounting groove is formed in the inner wall of the flange plate, a spring is arranged in the mounting groove in a penetrating mode, a rear plate is arranged above the flange plate, the tail end of the spring is arranged at the lower end of the rear plate, and the tail end of the spring is arranged at the lower end of the rear plate. An inlet is formed in the rear plate, a filter cartridge is arranged on the outer side of the spring, an annular groove is formed in the upper end of the filter cartridge, a movable frame is slidably connected into the annular groove and matched with the flange plate, and the rear plate is matched with the filter cartridge. According to the utility model, the plurality of connecting rods push the sealing ring to move, so that the movable frame moves in the annular groove, the distance between the filter cartridge and the movable frame is increased, the main body of the filter cartridge can be automatically adjusted according to actual requirements, the automation degree of the device is improved, and convenience is brought to people.

Description

Technical Field

[0001] This utility model relates to the technical field of flameless venting devices, and in particular to a repetitive flameless venting device. Background Technology

[0002] Flameless venting devices are flame-extinguishing and protective devices used at the end of dust conveying processes. When an explosion occurs at the end of the equipment, the flameless venting device can effectively extinguish the gas flow that is released through the explosion relief disc, thus preventing damage to surrounding equipment and personnel. Flameless venting devices are mainly used in industries such as grain, metallurgy, chemical, power, pharmaceutical, and machinery processing. Specifically, they are used in pipelines connected to equipment such as cyclone separators, dust collectors, dust collectors, cartridge filters, and pneumatic conveying systems.

[0003] Existing flameless venting devices have the following technical defects: after venting, the venting plate is torn and damaged, requiring frequent replacement, thus increasing production costs; after venting, because the venting plate is damaged, external air often flows back into the pipeline; the opening pressure of the venting plate is fixed, therefore it can only meet the venting requirements under specific pressure conditions, resulting in poor versatility. In contrast, CN220833914U discloses a reusable flameless venting device, including a flameless venting device frame, on which a spliced ​​cylindrical flame-retardant layer is mounted, the spliced ​​cylindrical flame-retardant layer including a component fixedly mounted at the bottom of the inner cavity of the flameless venting device frame. The lower annular baffle at the edge of the flameless discharge device frame is fixedly fitted with an upper annular baffle at the top edge of the inner cavity. A spliced ​​stainless steel filter cartridge is snapped between the upper and lower annular baffles. By replacing the ordinary flame-arresting layer with a spliced ​​cylindrical flame-arresting layer, the height of the spliced ​​cylindrical flame-arresting layer can be adjusted by adjusting the compression of the spring. With the above design, it is not necessary to replace the flame-arresting layer after adjusting the compression of the spring, and the flame-arresting effect will not be affected by compression or stretching of the flame-arresting layer, thus reducing production costs. Adjusting the length of the filter cartridge still requires manual addition or reduction of the flame-arresting layer, which is more complicated and cannot achieve automation of the device, thereby reducing the overall linkage and adaptability of the device. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology. By having multiple connecting rods push the sealing ring to move, the moving frame moves within the annular groove, increasing the distance between the filter cartridge and the moving frame. This allows the main body of the filter cartridge to be automatically adjusted according to actual needs, improving the automation level of the device and bringing convenience to people. This is the proposed repetitive flameless venting device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A repetitive flameless venting device includes a flange plate with a vent opening and a support plate inside the vent opening. An installation groove is formed on the inner wall of the flange plate, and a spring passes through the installation groove. A rear plate is located above the flange plate, with the end of the spring positioned at the lower end of the rear plate. An inlet is formed on the rear plate. A filter cartridge is located outside the spring, and an annular groove is formed at the upper end of the filter cartridge. A movable frame is slidably connected within the annular groove. The movable frame cooperates with the flange plate, and the rear plate cooperates with the filter cartridge. A moving mechanism for moving the movable frame is provided within the annular groove, and a sealing mechanism for sealing the annular groove is provided at the lower end of the movable frame.

[0007] Preferably, the moving mechanism includes a plurality of circumferentially arranged moving blocks disposed in an annular groove, and each of the plurality of moving blocks is provided with two symmetrically arranged connecting rods at its upper end.

[0008] Preferably, the sealing mechanism includes a sealing ring disposed at the lower end of the movable frame, the sealing ring being slidably connected to the inner wall of the annular groove, and the upper ends of multiple pairs of connecting rods being connected to the lower end of the sealing ring.

[0009] Preferably, the annular groove is rotatably connected to the lower end of the filter cylinder by a plurality of circumferentially arranged rotating rods, and each of the plurality of rotating rods is provided with a sealing gasket at the rotatable connection point between the plurality of rotating rods and the filter cylinder. Each of the plurality of rotating rods has a threaded area at one end located in the annular groove, and the plurality of moving blocks are respectively disposed in the plurality of threaded areas and threadedly connected thereto.

[0010] Preferably, the lower end of the filter cartridge is rotatably connected to a rotating ring, the lower end of the rotating ring is provided with a toothed ring, and the outer walls of the plurality of rotating rods are provided with transmission wheels that mesh with the toothed ring.

[0011] Preferably, the outer wall of the filter cartridge is provided with a fixing plate, the lower end of the fixing plate is provided with a power motor, the outer wall of the output shaft of the power motor is provided with a drive wheel, and the drive wheel meshes with a gear ring.

[0012] The beneficial effects of this utility model are:

[0013] 1. By having multiple connecting rods push the sealing ring to move, the moving frame moves within the annular groove, increasing the distance between the filter cartridge and the moving frame. This allows the main body of the filter cartridge to be automatically adjusted according to actual needs, improving the automation level of the device and bringing convenience to people.

[0014] 2. By setting the meshing of the driving wheel and the gear ring, as well as the meshing of multiple transmission wheels and the gear ring, when the driving wheel rotates, multiple rotating rods rotate simultaneously, thereby pushing multiple connecting rods simultaneously, ensuring the stability and linkage of the moving frame. Attached Figure Description

[0015] Figure 1This is a front view schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a bottom view of the overall structure of this utility model;

[0017] Figure 3 This is a partial structural cross-sectional schematic diagram of the present invention.

[0018] In the diagram: 1 Flange plate, 2 Support plate, 3 Moving frame, 4 Filter cartridge, 5 Power motor, 6 Drive wheel, 7 Drain port, 8 Rear plate, 9 Inlet, 10 Rotating rod, 11 Transmission wheel, 12 Rotating ring, 13 Gear ring, 14 Mounting groove, 15 Spring, 16 Annular groove, 17 Sealing ring, 18 Threaded area, 19 Moving block, 20 Connecting rod. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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.

[0021] Reference Figure 1-3 A repetitive flameless venting device includes a flange plate 1, a venting port 7 on the flange plate 1, a support plate 2 inside the venting port 7, an installation groove 14 on the inner wall of the flange plate 1, a spring 15 passing through the installation groove 14, a rear plate 8 above the flange plate 1, the end of the spring 15 being located at the lower end of the rear plate 8, an inlet 9 on the rear plate 8, a filter cartridge 4 outside the spring 15, an annular groove 16 at the upper end of the filter cartridge 4, a movable frame 3 slidably connected in the annular groove 16, the movable frame 3 cooperating with the flange plate 1, the rear plate 8 cooperating with the filter cartridge 4, a moving mechanism for moving the movable frame 3 is provided in the annular groove 16, the moving mechanism including multiple circumferentially arranged moving blocks 19 arranged in the annular groove 16, and two symmetrically arranged connecting rods 20 at the upper end of each of the multiple moving blocks 19.

[0022] The lower end of the movable frame 3 is provided with a sealing mechanism for sealing the annular groove 16. The sealing mechanism includes a sealing ring 17 located at the lower end of the movable frame 3. The sealing ring 17 is slidably connected to the inner wall of the annular groove 10. The upper ends of multiple pairs of connecting rods 20 are all connected to the lower ends of the sealing ring 17. By pushing the sealing ring 17 with multiple connecting rods 20, the movable frame 3 moves within the annular groove 16, thereby increasing the distance between the filter cartridge 4 and the movable frame 3. This allows the filter cartridge 4 to be automatically adjusted according to actual needs, improving the automation level of the device and bringing convenience to people.

[0023] A plurality of circumferentially arranged rotating rods 10 are rotatably connected through the annular groove 16 and the lower end of the filter cylinder 4. Each of the multiple rotating rods 10 and the filter cylinder 4 is provided with a sealing gasket. Each of the multiple rotating rods 10 has a threaded area 18 at one end located in the annular groove 16. Multiple moving blocks 19 are respectively arranged in the multiple threaded areas 18 and are threadedly connected to them.

[0024] The lower end of the filter cartridge 4 is rotatably connected to a rotating ring 12, and the lower end of the rotating ring 12 is provided with a toothed ring 13. The outer walls of multiple rotating rods 10 are provided with transmission wheels 11 that mesh with the toothed ring 13.

[0025] The filter cartridge 4 has a fixed plate on its outer wall, and a power motor 5 is provided at the lower end of the fixed plate. The output shaft of the power motor 5 has a drive wheel 6 on its outer wall. The drive wheel 6 meshes with the gear ring 13. By setting the meshing of the drive wheel 6 with the gear ring 13, and the meshing of multiple transmission wheels 11 with the gear ring 13, when the drive wheel 6 rotates, multiple rotating rods 10 rotate simultaneously, thereby pushing multiple connecting rods 20 simultaneously, ensuring the stability and linkage of the movement of the moving frame 3.

[0026] When using this invention, to adjust the length between the movable frame 3 and the filter cartridge 4, the power motor 5 is started, causing the power motor 5 to drive the drive wheel 6 to rotate. The drive wheel 6 meshes with the gear ring 13, and the lower rotating ring 12 of the gear ring 13 is connected to the filter cartridge 4, causing the entire gear ring 13 to rotate. Then, the gear ring 13 meshes with multiple transmission wheels 11, causing the multiple transmission wheels 11 to rotate and drive multiple rotating rods 10 to rotate. This causes the threaded areas 18 on the multiple rotating rods 10 to rotate. The movable blocks 19 are threadedly connected to the threaded areas 18, causing the multiple movable blocks 19 to move along with the two connecting rods 20. This causes the multiple connecting rods 20 to push the sealing ring 17, thus moving the movable frame 3 within the annular groove 16. This increases the distance between the filter cartridge 4 and the movable frame 3, allowing the main body of the filter cartridge 4 to automatically adjust according to actual needs, improving the automation level of the device and bringing convenience to people.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A repetitive flameless venting device, comprising a flange plate (1), characterized in that, The flange plate (1) is provided with a vent (7), and a support plate (2) is provided inside the vent (7). The inner wall of the flange plate (1) is provided with an installation groove (14), and a spring (15) is provided through the installation groove (14). A rear plate (8) is provided above the flange plate (1). The end of the spring (15) is located at the lower end of the rear plate (8). An inlet (9) is provided on the rear plate (8). A filter cylinder (4) is provided outside the spring (15). An annular groove (16) is provided at the upper end of the filter cylinder (4). A movable frame (3) is slidably connected in the annular groove (16). The movable frame (3) cooperates with the flange plate (1). The rear plate (8) cooperates with the filter cylinder (4). A moving mechanism for moving the movable frame (3) is provided in the annular groove (16). A sealing mechanism for sealing the annular groove (16) is provided at the lower end of the movable frame (3).

2. The repeatable flameless venting device according to claim 1, characterized in that, The moving mechanism includes multiple circumferentially arranged moving blocks (19) arranged in an annular groove (16), and each of the multiple moving blocks (19) has two symmetrically arranged connecting rods (20) at its upper end.

3. The repeatable flameless venting device according to claim 2, characterized in that, The sealing mechanism includes a sealing ring (17) disposed at the lower end of the movable frame (3). The sealing ring (17) is slidably connected to the inner wall of the annular groove (16). The upper ends of multiple pairs of connecting rods (20) are all connected to the lower end of the sealing ring (17).

4. The repeatable flameless venting device according to claim 3, characterized in that, The annular groove (16) and the lower end of the filter cylinder (4) are rotatably connected by a plurality of circumferentially arranged rotating rods (10). Each of the plurality of rotating rods (10) and the filter cylinder (4) is provided with a sealing gasket. One end of each of the plurality of rotating rods (10) located in the annular groove (16) is provided with a threaded area (18). The plurality of moving blocks (19) are respectively arranged in the plurality of threaded areas (18) and are threadedly connected to them.

5. The repeatable flameless venting device according to claim 4, characterized in that, The filter cartridge (4) is rotatably connected to a rotating ring (12) at its lower end. The rotating ring (12) is provided with a toothed ring (13) at its lower end. The outer walls of the multiple rotating rods (10) are provided with transmission wheels (11) that mesh with the toothed ring (13).

6. The repeatable flameless venting device according to claim 5, characterized in that, The filter cartridge (4) has a fixing plate on its outer wall, and a power motor (5) is provided at the lower end of the fixing plate. The output shaft of the power motor (5) has a drive wheel (6) on its outer wall, and the drive wheel (6) meshes with the gear ring (13).

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