Anti-backfire device for anti-explosion ignition equipment
By designing a fire-back-proof device for explosion-proof ignition equipment, the synergy of components such as riser, fire-back-proof components, etc., the problem of insufficient fire-back-proof capability of the existing fire-back-proof device is solved, and higher fire-back-proof performance and safety guarantee are achieved.
Patent Information
- Application Number
- CN202421306331.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-06-11
AI Technical Summary
The existing anti-fire-return devices have shortcomings in anti-fire-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-return-re
An anti-fire device for explosion-proof ignition equipment is designed, including a riser, anti-fire component, a barrel, an anti-fire chamber, a first ring body, a fixed plate, a first sealing plate, a first sealing ring, a flow guide and other devices. Through the synergy of these components, the anti-fire performance is improved.
The anti-temperature performance of the device is significantly improved, which can more effectively prevent the return of combustible gases, further improving the safety guarantee of the device.
Smart Images
Figure CN222597781U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of safety and environmental protection, in particular to a backfire prevention device for explosion-proof ignition equipment. Background Art
[0002] The electronic ignition device for oil drilling fluid is a device for treating tail gas and vented natural gas in oil drilling, oil refineries and natural gas gathering and transportation stations. The electronic ignition device can ignite and burn the vented combustible and harmful gases to eliminate their harm to the environment and safety. It is a safe and environmentally friendly equipment.
[0003] Existing ignition equipment used to ignite combustible gas in the air is generally equipped with anti-flashback devices to improve the safety performance of the device. However, the existing anti-flashback devices need to be further improved in terms of anti-flashback capabilities. Existing anti-flashback devices generally have an anti-flashback component set inside. The anti-flashback capability of only one anti-flashback component is limited. Existing anti-flashback devices generally use rubber parts for plugging, but combustible gas has a certain corrosive ability to rubber. After long-term use, the rubber parts used for plugging are corroded, which leads to poor anti-flashback capability.
[0004] Therefore, a flashback prevention device for explosion-proof ignition equipment is specially proposed. Summary of the invention
[0005] In view of the shortcomings of the prior art, the utility model provides an anti-flashback device for explosion-proof ignition equipment, which has strong anti-flashback capability. Compared with the existing anti-flashback equipment, the anti-flashback performance of this device has been greatly improved, further providing safety protection for the operation of the device, and solving the problem that the performance of the existing anti-flashback device needs to be improved.
[0006] To achieve the above object, the utility model provides the following technical solutions: a backfire prevention device for explosion-proof ignition equipment, comprising a vertical pipe, a combustion cylinder is fixedly installed on the top of the vertical pipe, an electronic ignition component is fixedly installed on the right side of the vertical pipe at the bottom of the combustion cylinder, and a base is fixedly installed at the bottom of the vertical pipe;
[0007] An anti-backfire component is provided at the bottom of the riser, and the anti-backfire component includes a barrel body, which is fixedly installed at the right side of the bottom of the riser. An anti-backfire bin is opened on the right side of the inside of the barrel body, and a first ring body and a second ring body are fixedly installed on the inner wall of the anti-backfire bin. The first ring body is located at the right side of the second ring body and the two have the same structure.
[0008] Preferably, a fixing plate is fixedly installed inside the anti-return warehouse, the fixing plate is located between the first ring body and the second ring body, a ventilation groove is opened on the surface of the fixing plate, and a limiting ring is fixedly installed at the center position of the fixing plate.
[0009] Preferably, a linkage rod is movably installed inside the fixed plate, and the linkage rod passes through the fixed plate through a limiting ring. A first sealed plate is fixedly installed on the right end of the linkage rod, and a second sealed plate is fixedly installed on the left side of the linkage rod. The surface of the linkage rod is located between the fixed plate and the first sealed plate and is sleeved with a spring.
[0010] Preferably, a first sealing ring is fixedly installed on the right outer ring of the first sealed plate, and a second sealing ring is fixedly installed on the right outer ring of the second sealed plate. The outer end surfaces of the first sealed plate and the second sealed plate are both provided with guide patterns, and the first sealed plate and the second sealed plate are respectively located on the left sides of the first ring body and the second ring body.
[0011] Preferably, a vent bin is opened on the left side inside the barrel body, a pressurizing nozzle is provided between the vent bin and the anti-return bin, and the vent bin and the anti-return bin are communicated through the pressurizing nozzle, and the inner diameter of the vent bin is smaller than the inner diameter of the anti-return bin.
[0012] Preferably, a spiral groove is provided on the inner wall of the ventilation bin, a conical guide block is movably installed inside the ventilation bin, and a guide groove is provided on the outer ring surface of the conical guide block.
[0013] Preferably, a rotating shaft is movably installed at the right center of the conical guide block, and the rotating shaft is movably connected to a linkage rod. The linkage rod passes through the second sealed plate and extends into the ventilation bin and is movably connected to the conical guide block through the rotating shaft.
[0014] Preferably, the left side area of the conical guide block is larger than the right side area, and is in a shape of shrinking toward the right side. The conical guide block can be stuck in the connection between the boost nozzle and the ventilation bin.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] 1. This anti-backfire device for explosion-proof ignition equipment has strong anti-backfire ability by installing risers, anti-backfire components, barrels, anti-backfire bins, first ring bodies, fixed plates, first closed plates, first sealing rings, guide patterns and other devices. Compared with existing anti-backfire equipment, the anti-backfire performance of this device has been greatly improved, further providing safety protection for the operation of the device.
[0017] 2. This anti-backfire device for explosion-proof ignition equipment achieves the purpose of increasing the flow rate of combustible gas and making the flame column of combustible gas higher after ignition by installing devices such as a barrel body, an anti-backfire bin, a ventilation bin, a spiral groove, a booster nozzle, a conical guide block, a guide groove, and a rotating shaft, and further enhances the anti-backfire effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 This is a schematic diagram of the overall structure of the anti-backfire device of the utility model;
[0020] Figure 2 This is a schematic diagram of the internal structure of the anti-backfire device of the utility model;
[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the barrel of the utility model;
[0022] Figure 4 This is a schematic diagram of the overall structure of the anti-backfire component of the utility model.
[0023] Description of reference numerals:
[0024] 1. Vertical pipe; 2. Combustion tube; 3. Electronic ignition component; 4. Base; 5. Anti-backfire component; 51. Barrel body; 52. Anti-backfire chamber; 53. Ventilation chamber; 531. Spiral groove; 54. Booster nozzle; 55. First ring body; 56. Second ring body; 57. Fixed plate; 571. Ventilation groove; 58. Limiting ring; 59. Linkage rod; 510. First sealing plate; 511. First sealing ring; 512. Second sealing plate; 513. Guide pattern; 514. Second sealing ring; 515. Spring; 6. Conical guide block; 61. Guide groove; 62. Rotating shaft. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] See also Figures 1 to 4 , the utility model provides a technical solution:
[0027] A backfire prevention device for explosion-proof ignition equipment, comprising a standpipe 1, a combustion tube 2 is fixedly installed on the top of the standpipe 1, an electronic ignition component 3 is fixedly installed on the right side of the standpipe 1 at the bottom of the combustion tube 2, a base 4 is fixedly installed on the bottom of the standpipe 1, an anti-backfire component 5 is arranged at the bottom of the standpipe 1, the anti-backfire component 5 comprises a barrel 51, the barrel 51 is fixedly installed at the right side of the bottom of the standpipe 1, an anti-backfire bin 52 is opened on the right side of the inside of the barrel 51, a first ring body 55 and a second ring body 56 are fixedly installed on the inner wall of the anti-backfire bin 52, the first ring body 55 is located at the right side of the second ring body 56 and the two have the same structure;
[0028] A fixing plate 57 is fixedly installed inside the anti-return warehouse 52, and the fixing plate 57 is located between the first ring body 55 and the second ring body 56. A ventilation groove 571 is opened on the surface of the fixing plate 57, and a limiting ring 58 is fixedly installed at the center of the fixing plate 57. A linkage rod 59 is movably installed inside the fixing plate 57, and the linkage rod 59 passes through the fixing plate 57 through the limiting ring 58. A first sealing plate 510 is fixedly installed on the right end of the linkage rod 59, and a second sealing plate 510 is fixedly installed on the left side of the linkage rod 59. Plate 512, the surface of the linkage rod 59 is located between the fixed plate 57 and the first sealed plate 510 and is sleeved with a spring 515, the right outer ring of the first sealed plate 510 is fixedly installed with a first sealing ring 511, the right outer ring of the second sealed plate 512 is fixedly installed with a second sealing ring 514, the outer end surfaces of the first sealed plate 510 and the second sealed plate 512 are both provided with guide grooves 513, the first sealed plate 510 and the second sealed plate 512 are respectively located on the left sides of the first ring body 55 and the second ring body 56.
[0029] By adopting the above technical scheme, in use, the left end of the anti-backfire component 5 is first connected to the bottom of the riser 1 through a flange, and then the component for supplying combustible gas is connected to the right end of the anti-backfire component 5 through a flange. When the equipment is ignited, the component for supplying combustible gas supplies combustible gas into the anti-backfire chamber 52. After the combustible gas enters the anti-backfire chamber 52, the first sealed plate 510 is naturally pushed to the left as the air pressure increases. While the first sealed plate 510 moves to the left, the second sealed plate 512 is driven to move to the left through the linkage rod 59. After the first sealed plate 510 and the second sealed plate 512 move to the left, the gaps between the first sealed plate 510 and the first ring body 55, and between the second sealed plate 512 and the second ring body 56 are opened, so that the combustible gas flows to the left through the first sealed plate 510, the second sealed plate 512 and the fixed plate 57. When the first sealed plate 510 moves to the left, At the same time, the spring 515 will be compressed. When the attack on the combustible gas stops, the pressure in the anti-return chamber 52 decreases, which is not enough to push the first sealed plate 510 to move to the left. At this time, the pressure of the spring 515 is released to push the first sealed plate 510 back to its original position. The first sealed plate 510 is sealed through the first sealing ring 511 and the anti-backfire component 5. When the first sealed plate 510 is reset, the second sealed plate 512 is driven to reset through the linkage rod 59. After the second sealed plate 512 is reset, it is sealed with the second ring body 56 through the second sealing ring 514. Through the above-mentioned structural design, the device has two sets of sealed components. The first sealed plate 510 and the second sealed plate 512 can simultaneously complete the sealing, thereby improving the anti-backfire performance. At the same time, the outer surfaces of the second sealed plate 512 and the first sealed plate 510 are provided with the second sealed plate 512, which can provide the efficiency of the combustible gas passing to the left when the combustible gas is supplied.
[0030] Specifically, Figures 2 to 4 As shown, a vent bin 53 is provided on the left side inside the barrel body 51, a boost nozzle 54 is provided between the vent bin 53 and the anti-return bin 52, and the vent bin 53 and the anti-return bin 52 are communicated through the boost nozzle 54, the inner diameter of the vent bin 53 is smaller than the inner diameter of the anti-return bin 52, a spiral groove 531 is provided on the inner wall of the vent bin 53, a conical guide block 6 is movably installed inside the vent bin 53, a guide groove 61 is provided on the outer ring surface of the conical guide block 6, a rotating shaft 62 is movably installed at the right center of the conical guide block 6, the rotating shaft 62 is movably connected to the linkage rod 59, the linkage rod 59 passes through the second closed plate 512, extends into the vent bin 53 and is movably connected to the conical guide block 6 through the rotating shaft 62, the left area of the conical guide block 6 is larger than the right area, and is shrinking toward the right, and the conical guide block 6 can be stuck in the connection between the boost nozzle 54 and the vent bin 53.
[0031] By adopting the above technical scheme, a ventilation bin 53 is opened on the left side inside the barrel body 51, and a booster nozzle 54 is arranged between the ventilation bin 53 and the anti-return bin 52. Because the diameter of the booster nozzle 54 is smaller than the diameter of the anti-return bin 52, when the combustible gas in the anti-return bin 52 enters the ventilation bin 53 through the booster nozzle 54, the flow rate of the combustible gas can be increased by the booster nozzle 54. The left end of the linkage rod 59 is connected to the conical guide block 6 through the rotating shaft 62. When the first closed plate 510 moves to the left, the conical guide block 6 can also move to the left through the linkage rod 59. The conical guide block 6 is connected to the linkage rod 59 through the rotating shaft 62 so that the conical guide block 6 can rotate. A guide groove 61 is opened on the surface of the conical guide block 6. The area on the left side is larger than the area on the right side, and it is shrinking toward the right. When the combustible gas flows to the left, that is, The conical guide block 6 can be rotated by the rotating shaft 62, and the combustible gas can be diverted due to the shape of the conical guide block 6. A spiral groove 531 is provided on the inner wall of the ventilation bin 53. The design of the spiral groove 531 can increase the circulation speed of the combustible gas, stabilize the supply of the combustible gas, and make the flame column of the combustible gas higher after ignition due to the increased flow rate of the combustible gas. At the same time, the overall shape of the conical guide block 6 coincides with the right side of the ventilation bin 53. When the supply of combustible gas stops, the first sealed plate 510 is reset by the spring 515. The first sealed plate 510 drives the linkage rod 59 when it moves. The linkage rod 59 simultaneously drives the second sealed plate 512 and the conical guide block 6 to move, and makes the conical guide block 6 stuck on the right side of the ventilation bin 53, thereby further improving the anti-backfire effect of the device.
[0032] Working principle: When in use, the anti-backfire component 5 is installed at the bottom of the riser 1, and the combustible gas is supplied to the riser 1 through the anti-backfire component 5. When the combustible gas is supplied, the combustible gas enters the barrel body 51 from the anti-backfire bin 52, and the first sealed plate 510 is pushed to the left. While the first sealed plate 510 moves, the second sealed plate 512 and the guide groove 61 are driven to move to the left at the same time through the linkage rod 59, and the spring 515 is compressed. After the first sealed plate 510, the second sealed plate 512 and the conical guide block 6 move to the left, the gaps between the first sealed plate 510 and the first ring body 55, the second sealed plate 512 and the second ring body 56, the conical guide block 6 and the barrel body 51 are opened. The combustible gas can flow to the left, and the conical guide block 6 will be driven to rotate during the gas flow. The conical guide block 6 plays a guiding role through the guide groove 61 opened on its surface while rotating, and the circulation speed of the combustible gas is increased through the spiral groove 531 opened on the inner wall of the ventilation bin 53. Finally, the combustible gas is supplied to the combustion tube 2 through the riser 1 and then ignited by the electronic ignition component 3. When the supply of combustible gas stops, the pressure in the barrel 51 becomes smaller, and the pressure of the spring 515 is released to push the first sealing plate 510 back to its original position, so that it is closed with the first ring body 55, and at the same time, the second sealing plate 512 and the conical guide block 6 are driven to reset through the linkage rod 59 to complete the anti-backfire operation.
[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. A flashback prevention device for explosion-proof ignition equipment, comprising a riser (1), characterized in that: A combustion cylinder (2) is fixedly mounted on the top of the vertical pipe (1), an electronic ignition component (3) is fixedly mounted on the right side of the vertical pipe (1) at the bottom of the combustion cylinder (2), and a base (4) is fixedly mounted on the bottom of the vertical pipe (1); The bottom of the riser (1) is provided with an anti-flashback component (5), the anti-flashback component (5) comprising a barrel (51), the barrel (51) being fixedly mounted on the right side of the bottom of the riser (1), an anti-flashback bin (52) being provided on the right side of the inside of the barrel (51), a first ring body (55) and a second ring body (56) being fixedly mounted on the inner wall of the anti-flashback bin (52), the first ring body (55) being located on the right side of the second ring body (56) and the two having the same structure.
2. The anti-flashback device for explosion-proof ignition equipment according to claim 1, characterized in that: A fixing plate (57) is fixedly installed inside the anti-return bin (52), and the fixing plate (57) is located between the first ring body (55) and the second ring body (56). A ventilation groove (571) is provided on the surface of the fixing plate (57), and a limiting ring (58) is fixedly installed at the center position of the fixing plate (57).
3. The anti-flashback device for explosion-proof ignition equipment according to claim 2, characterized in that: A linkage rod (59) is movably installed inside the fixed plate (57), and the linkage rod (59) passes through the fixed plate (57) through a limiting ring (58). A first sealed plate (510) is fixedly installed on the right end of the linkage rod (59), and a second sealed plate (512) is fixedly installed on the left side of the linkage rod (59). A spring (515) is sleeved on the surface of the linkage rod (59) between the fixed plate (57) and the first sealed plate (510).
4. The anti-flashback device for explosion-proof ignition equipment according to claim 3, characterized in that: A first sealing ring (511) is fixedly installed on the right outer ring of the first sealed plate (510), and a second sealing ring (514) is fixedly installed on the right outer ring of the second sealed plate (512). The outer end surfaces of the first sealed plate (510) and the second sealed plate (512) are both provided with flow guide patterns (513). The first sealed plate (510) and the second sealed plate (512) are respectively located on the left side of the first ring body (55) and the second ring body (56).
5. The anti-flashback device for explosion-proof ignition equipment according to claim 1, characterized in that: A venting bin (53) is provided on the left side of the barrel body (51), a pressurizing nozzle (54) is provided between the venting bin (53) and the anti-return bin (52), and the venting bin (53) and the anti-return bin (52) are communicated with each other through the pressurizing nozzle (54), and the inner diameter of the venting bin (53) is smaller than the inner diameter of the anti-return bin (52).
6. The anti-flashback device for explosion-proof ignition equipment according to claim 5, characterized in that: The inner wall of the ventilation bin (53) is provided with a spiral groove (531), a conical guide block (6) is movably installed inside the ventilation bin (53), and a guide groove (61) is provided on the outer ring surface of the conical guide block (6).
7. The anti-flashback device for explosion-proof ignition equipment according to claim 6, characterized in that: A rotating shaft (62) is movably mounted at the right center of the conical guide block (6), and the rotating shaft (62) is movably connected to a linkage rod (59). The linkage rod (59) passes through the second sealed plate (512), extends into the ventilation chamber (53), and is movably connected to the conical guide block (6) through the rotating shaft (62).
8. The anti-flashback device for explosion-proof ignition equipment according to claim 7, characterized in that: The left side area of the conical guide block (6) is larger than the right side area, and is in a shape of shrinking toward the right side. The conical guide block (6) can be stuck in the connection between the boost nozzle (54) and the ventilation chamber (53).