A quick-change flame arrester
By using an inclined nozzle and inert gas pulse backflushing to remove dust and oil from the surface of the flame arrestor core, the problem of reduced ventilation efficiency and complicated replacement caused by impurity accumulation in traditional flame arrestors is solved, achieving the effect of rapid replacement of the flame arrestor core.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU ZHIKE PETROCHEMICAL EQUIPMENT CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-02
AI Technical Summary
When traditional flame arresters handle gases containing dust and oil, impurities tend to accumulate on the surface of the flame arrestor core, leading to a decrease in ventilation efficiency. Furthermore, replacing the flame arrestor core requires the complete disassembly of the pipe connection components, which is time-consuming and complex, affecting production continuity.
A quick-replacement flame arrester was designed, which uses inclined nozzles to spray high-speed airflow onto the flame arrester core. The pulse backflushing of inert gas removes dust and oil impurities, and the collected impurities are collected by a collection box. At the same time, the connecting pipe does not need to be disassembled when replacing the flame arrester core. High-pressure inert gas is provided for cleaning using an electromagnetic pulse valve and an inert gas storage tank.
It effectively removes dust and oil stains from the surface of the flame arrestor core, maintains ventilation efficiency and flame arrestor performance, simplifies the replacement process of the flame arrestor core, reduces operation time, and improves production continuity.
Smart Images
Figure CN224307720U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of flame arrester equipment technology, and in particular to a quick-replacement flame arrester. Background Technology
[0002] In industrial production, flame arresters are key equipment used to prevent the spread of flames and ensure the safety of pipeline systems. They are widely used in flammable and explosive fields such as petrochemicals, gas transmission, and dust treatment.
[0003] When traditional flame arresters handle gases containing dust and oil, impurities tend to accumulate on the surface of the flame arrestor core, leading to decreased ventilation efficiency and increased pressure loss in the equipment. Furthermore, replacing the flame arrestor core requires the complete disassembly of the pipeline connection components, which is time-consuming and complex, severely impacting production continuity. Utility Model Content
[0004] This application provides a quick-replacement flame arrester to solve the problems of traditional flame arresters when handling gases containing dust and oil, where impurities easily accumulate on the surface of the flame arrester core, leading to decreased ventilation efficiency and increased pressure loss in the equipment. At the same time, replacing the flame arrester core requires the complete disassembly of the pipeline connection components, which is time-consuming and complicated, seriously affecting the continuity of production.
[0005] This application provides a quick-change flame arrester, including a flame arrester housing and two connecting pipes, the two connecting pipes being fixedly installed on the left and right sides of the flame arrester housing respectively, and further including:
[0006] A flame arrester core housing, wherein the flame arrester core housing is inserted into the flame arrester housing, a flame arresting core is provided inside the flame arrester core housing, support rods are fixedly installed inside the flame arrester core housing and on both sides of the flame arresting core, a connecting rod is slidably installed inside the flame arresting core, one end of the connecting rod passes through one of the support rods and is threaded with a nut, and a handle is fixedly installed on the top of the flame arrester core housing.
[0007] A cover plate, wherein the cover plate is disposed on the top of the flame arrester housing;
[0008] A flushing assembly, located on one of the connecting pipes, is used to clean the flame arrester core housing.
[0009] Preferably, the rinsing assembly includes:
[0010] A connecting pipe is sleeved on one of the connecting pipes. Several nozzles are fixedly installed on the inner side of the connecting pipe, and one end of each nozzle extends through the outer wall of the connecting pipe into the interior.
[0011] An inert gas storage tank is provided, which is located on one side of the flame arrester housing. An electromagnetic pulse valve is connected between the inert gas storage tank and the connecting pipe.
[0012] Preferably, several of the nozzles are connected to a connecting pipe, and the inlet and outlet of the electromagnetic pulse valve are respectively connected to an inert gas storage tank and a connecting pipe, and the connecting pipe and the connecting pipe are fixed together by several bolts.
[0013] Preferably, a collection box is fixedly installed at the bottom of the inner cavity of the flame arrester housing, near one of the connecting pipes, and a collection container is inserted into the bottom of the collection box. Flanges are fixedly installed at the ends of the two connecting pipes that are far apart from each other.
[0014] Preferably, the collection box is fixed to the collection container by a number of bolts.
[0015] Preferably, the cover plate is fixed to the flame arrester housing by a number of bolts.
[0016] Preferably, the nozzle has an inclined structure, and the nozzle is made of 304 stainless steel.
[0017] Beneficial effects:
[0018] Considering that traditional flame arresters, when handling gases containing dust and oil, easily accumulate impurities on the surface of the flame arrestor core, leading to decreased ventilation efficiency and increased pressure loss, and that replacing the flame arrestor core requires complete disassembly of pipe connections, which is time-consuming, complex, and severely impacts production continuity, this device addresses these issues. It uses multiple nozzles to spray high-speed airflow onto the flame arrestor core. The angled nozzles allow the airflow to cover the porous surface of the flame arrestor core, and the impact force strips away dust and oil impurities. The airflow carries the impurities into the flame arrestor housing along the gas flow direction and causes them to settle downwards. Under the influence of gravity, the settled impurities fall along the inner wall of the flame arrestor housing into a collection box. Pulse backflushing with inert gas effectively removes the accumulated dust and oil from the flame arrestor core surface, preventing channel blockage and maintaining the flame arrestor core's ventilation efficiency and flame-arresting performance. With this device, replacing the flame arrestor core housing does not require disassembling the connecting pipes, saving time.
[0019] The above description is merely an overview of the technical solutions of the embodiments of this application. In order to better understand the technical means of the embodiments of this application and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this application more obvious and understandable, specific implementation methods of this application are described below. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the overall structure of a quick-replacement flame arrester according to this utility model. Figure 1 .
[0022] Figure 2 This is a schematic diagram of the overall structure of a quick-replacement flame arrester according to this utility model. Figure 2 .
[0023] Figure 3 This is a cross-sectional structural diagram of the flame arrester housing of a quick-replacement flame arrester according to this utility model.
[0024] Figure 4 This is a schematic diagram of the flame arrester core shell structure of a quick-replacement flame arrester according to this utility model.
[0025] Figure 5 This is a schematic diagram of the connecting pipe and nozzle structure of a quick-replacement flame arrester according to this utility model.
[0026] Explanation of reference numerals in the attached figures:
[0027] 1. Flame arrester housing; 2. Connecting pipe; 3. Flame flange; 4. Flame arrester core housing; 5. Flame arrester core; 6. Nut; 7. Connecting rod; 8. Support rod; 9. Handle; 10. Collection box; 11. Collection container; 12. Cover plate; 14. Connecting pipe; 15. Nozzle; 16. Electromagnetic pulse valve; 17. Inert gas storage tank. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.
[0030] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0031] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are used only for the convenience of describing this application 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 application.
[0032] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection, such as a fixed connection, for example, a connection fixed by fasteners, such as a connection fixed by screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0033] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.
[0034] This utility model provides, for example Figure 1-5 The quick-change flame arrester shown includes a flame arrester housing 1 and two connecting pipes 2, which are respectively fixedly installed on the left and right sides of the flame arrester housing 1. It also includes:
[0035] The flame arrester core housing 4 is inserted into the flame arrester housing 1. The flame arrester core housing 4 is provided with a flame arrester core 5. Support rods 8 are fixedly installed inside the flame arrester core housing 4 and on both sides of the flame arrester core 5. A connecting rod 7 is slidably installed inside the flame arrester core 5. One end of the connecting rod 7 passes through one of the support rods 8 and is threaded with a nut 6. A handle 9 is fixedly installed on the top of the flame arrester core housing 4.
[0036] Cover plate 12 is disposed on the top of flame arrester housing 1;
[0037] A flushing assembly is located on one of the connecting pipes 2 and is used to clean the flame arrester core housing 4.
[0038] The system is first connected to the pipeline via two flanges 3. When the gas in the pipeline burns or explodes, the flame spreads with the airflow through one of the connecting pipes 2 toward the flame arrester housing 1. After the flame enters the narrow channel of the flame arrester core 5, the flame temperature drops sharply, thereby achieving the purpose of extinguishing the fire. When dust and oil accumulate on the surface of the flame arrester core 5 and need to be cleaned, the flushing component effectively removes the dust and oil accumulated on the surface of the flame arrester core 5, prevents the channel from being blocked, and maintains the ventilation efficiency and flame arresting performance of the flame arrester core 5.
[0039] When it is necessary to replace the flame arrestor core 5, open the cover plate 12, grasp the handle 9 and lift it upwards to pull the flame arrestor core housing 4 out of the flame arrestor housing 1. At this time, the connecting rod 7 and nut 6 are taken out together with the housing. Align the new flame arrestor core housing 4 with the slot of the flame arrestor housing 1, insert it to the bottom, ensure a seal, tighten the bolts of the cover plate 12, and the core replacement is completed. The whole process does not require disassembling the connecting pipe 2, saving time.
[0040] The rinsing components include:
[0041] A connecting pipe 14 is sleeved on one of the connecting pipes 2. Several nozzles 15 are fixedly installed on the inner side of the connecting pipe 14, and one end of each nozzle 15 extends through the outer wall of the connecting pipe 2 into the interior.
[0042] An inert gas storage tank 17 is located on one side of the flame arrester housing 1, and an electromagnetic pulse valve 16 is connected between the inert gas storage tank 17 and the connecting pipe 14.
[0043] When the gas in the pipeline burns or explodes, the flame spreads with the airflow through one of the connecting pipes 2 towards the flame arrester housing 1. After the flame enters the narrow channel of the flame arrester core 5, the flame temperature drops sharply, thereby achieving the purpose of extinguishing the fire. When the surface of the flame arrester core 5 is covered with dust and oil and needs to be cleaned, the electromagnetic pulse valve 16 is activated. The electromagnetic pulse valve 16 opens instantly, and high-pressure inert gas quickly enters the connecting pipe 14 from the inert gas storage tank 17 through the electromagnetic pulse valve 16. It is then sprayed onto the flame arrester core 5 in the form of high-speed airflow through multiple nozzles 15. The inclined nozzles 15 cover the porous surface of the flame arrester core 5 with airflow. The impact force strips off the dust, oil and impurities. The airflow carries the impurities into the flame arrester housing 1 along the gas flow direction and settles downward.
[0044] Several nozzles 15 are connected to the connecting pipe 14. The air inlet and outlet of the electromagnetic pulse valve 16 are connected to the inert gas storage tank 17 and the connecting pipe 14, respectively. The connecting pipe 14 and the connecting pipe 2 are fixed by several bolts.
[0045] Specifically, the inert gas in the inert gas storage tank 17 can enter the connecting pipe 14 through the electromagnetic pulse valve 16, and then be sprayed out through several nozzles 15 of the connecting pipe 14 to spray and clean the flame arrestor core 5; this facilitates the removal of the connecting pipe 14 from the connecting pipe 2.
[0046] A collection box 10 is fixedly installed at the bottom of the inner cavity of the flame arrester housing 1 and near one of the connecting pipes 2. A collection box 11 is inserted into the bottom of the collection box 10. Flanges 3 are fixedly installed at the ends of the two connecting pipes 2 that are far apart.
[0047] The settled impurities fall along the inner wall of the flame arrester housing 1 under the action of gravity into the collection box 10 inside the collection box 11.
[0048] The collection box 11 is fixed to the collection container 10 by several bolts.
[0049] The included bolts allow the collection box 11 to be removed from the collection container 10, facilitating the cleaning of impurities inside the collection box 11.
[0050] The cover plate 12 is fixed to the flame arrester housing 1 by several bolts.
[0051] The cover plate 12 is designed to be easily disassembled using several bolts.
[0052] The nozzle 15 has an inclined structure and is made of 304 stainless steel.
[0053] The inclined nozzle 15 allows the airflow to cover the porous surface of the flame arrestor core 5, and the impact force removes dust, oil and impurities. The nozzle 15 is made of 304 stainless steel, ensuring that the nozzle 15 has strong high temperature resistance and corrosion resistance.
[0054] Working Principle: This quick-change flame arrester is initially connected to a pipeline via two flanges 3. When combustion or explosion occurs in the pipeline, the flame propagates with the airflow through one of the connecting pipes 2 towards the flame arrester housing 1. Once the flame enters the narrow channel of the flame arrestor core 5, its temperature drops rapidly, thus extinguishing the fire. When dust and oil accumulate on the surface of the flame arrestor core 5 and need cleaning, the electromagnetic pulse valve 16 is activated. The electromagnetic pulse valve 16 opens instantaneously, allowing high-pressure inert gas to rapidly enter the connecting pipe 1 from the inert gas storage tank 17 through the electromagnetic pulse valve 16. 4. The airflow is sprayed onto the flame arrestor core 5 in the form of high-speed airflow through multiple nozzles 15. The inclined nozzles 15 cover the porous surface of the flame arrestor core 5 with airflow. The impact force strips off dust, oil and impurities. The airflow carries the impurities into the flame arrestor housing 1 along the gas flow direction and settles downward. The settled impurities fall into the collection box 10 in the collection box 11 under the action of gravity. The dust and oil accumulated on the surface of the flame arrestor core 5 are effectively removed by the pulse backflushing of inert gas, preventing the channel from being blocked and maintaining the ventilation efficiency and flame arresting performance of the flame arrestor core 5.
[0055] When it is necessary to replace the flame arrestor core 5, the bolts on the cover plate 12 are turned with an auxiliary tool to release the restriction on the cover plate 12. Then, the cover plate 12 is removed from the flame arrester housing 1. Hold the handle 9 and lift it upward to pull the flame arrestor core housing 4 out of the flame arrester housing 1. At this time, the connecting rod 7 and nut 6 are removed together with the housing. Align the new flame arrestor core housing 4 with the slot of the flame arrester housing 1 and insert it to the bottom to ensure a seal. Tighten the bolts on the cover plate 12 to complete the core replacement. The whole process does not require disassembling the connecting pipe 2, saving time.
[0056] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A quick-change core-type flame arrester comprising a flame arrester housing (1) and two connecting pipes (2), the two connecting pipes (2) being respectively fixedly installed on the left and right sides of the flame arrester housing (1), characterized in that, Also includes: A flame arrester core housing (4) is inserted into a flame arrester housing (1). A flame arrester core (5) is provided inside the flame arrester core housing (4). Support rods (8) are fixedly installed inside the flame arrester core housing (4) and on both sides of the flame arrester core (5). A connecting rod (7) is slidably installed inside the flame arrester core (5). One end of the connecting rod (7) passes through one of the support rods (8) and is threaded with a nut (6). A handle (9) is fixedly installed on the top of the flame arrester core housing (4). A cover plate (12) is disposed on top of the flame arrester housing (1); A flushing assembly is located on one of the connecting pipes (2) and is used to clean the flame arrester core housing (4).
2. A quick-change core fire arrester according to claim 1, characterized in that: The flushing assembly includes: A connecting pipe (14) is sleeved on one of the connecting pipes (2). Several nozzles (15) are fixedly installed on the inner side of the connecting pipe (14), and one end of each nozzle (15) extends through the outer wall of the connecting pipe (2) into the interior. An inert gas storage tank (17) is provided on one side of the flame arrester housing (1), and an electromagnetic pulse valve (16) is connected between the inert gas storage tank (17) and the connecting pipe (14).
3. A quick-change flame arrester according to claim 2, characterized in that: Several nozzles (15) are connected to a connecting pipe (14). The inlet and outlet of the electromagnetic pulse valve (16) are connected to an inert gas storage tank (17) and a connecting pipe (14), respectively. The connecting pipe (14) and the connecting pipe (2) are fixed by several bolts.
4. A quick-change flame arrester according to claim 1, characterized in that: A collection box (10) is fixedly installed at the bottom of the inner cavity of the flame arrester housing (1) and near one of the connecting pipes (2). A collection box (11) is inserted into the bottom of the collection box (10). Flanges (3) are fixedly installed at the ends of the two connecting pipes (2) that are far apart from each other.
5. A quick-change flame arrester according to claim 4, characterized in that: The collection box (11) is fixed to the collection container (10) by several bolts.
6. A quick-change flame arrester according to claim 1, characterized in that: The cover plate (12) is fixed to the flame arrester housing (1) by several bolts.
7. A quick-change flame arrester according to claim 2, characterized in that: The nozzle (15) has an inclined structure and is made of 304 stainless steel.