Efficient energy-saving flame arrester
By using a split shell and a multi-layered corrugated metal honeycomb channel design for the flame arrester, combined with dynamic sealing and a self-cleaning structure, the problems of low flame arresting efficiency, large pressure loss and high maintenance cost of traditional flame arresters are solved, achieving high efficiency, energy saving and safe flame arresting performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENYANG YUANDA COMPRESSOR
- Filing Date
- 2025-05-12
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional flame arresters have low flame arresting efficiency, large pressure loss, high maintenance costs, are difficult to adapt to complex working conditions, and are prone to clogging and corrosion.
It adopts a split shell design, a flame-retardant core with multi-layer special metal corrugated plates or sintered metal fiber honeycomb channels, dynamic sealing components and self-cleaning structure, combined with low flow resistance fluid channels and modular design, and integrates sensor interfaces.
It achieves high efficiency, energy saving, and safe fire-retardant performance, reduces energy consumption and maintenance costs, adapts to complex working conditions, and extends service life.
Smart Images
Figure CN224220640U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flame arrester technology, specifically a high-efficiency and energy-saving flame arrester. Background Technology
[0002] In high-risk industries such as petrochemicals, natural gas, and coal mining, flame arresters are critical equipment for ensuring safe production. They are used to stop the spread of flames and prevent fires and explosions. However, traditional flame arresters have many shortcomings in practical applications: First, traditional flame arresters often use simple structures such as metal mesh and corrugated plates, resulting in limited flame-arresting efficiency and difficulty in effectively stopping the spread of high-speed flames. Second, unreasonable structural design leads to significant pressure loss when airflow passes through, affecting system operating efficiency. Furthermore, traditional flame arresters are often designed for specific operating conditions and are difficult to adapt to complex and changing media, pressures, and flow rates. Finally, traditional flame arresters are prone to clogging and corrosion, resulting in high and frequent maintenance costs. These problems severely restrict the performance and application range of flame arresters. Therefore, there is an urgent need for a highly efficient, energy-saving, widely applicable, and low-maintenance flame arrester technology to meet the higher requirements of modern industry for safety and economy. Utility Model Content
[0003] To address the shortcomings of existing technologies, this invention provides a high-efficiency and energy-saving flame arrester to solve the problems mentioned in the background section.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency and energy-saving flame arrester, comprising:
[0005] The housing has a split structure and has an inlet end and an outlet end, as well as a low flow resistance fluid channel connecting the inlet end and the outlet end. The inlet end and the outlet end are connected to the low flow resistance channel through an expansion section.
[0006] The flame-arresting core is composed of multiple layers of special metal corrugated plates or sintered metal fibers, forming a micron-level honeycomb channel. The flame-arresting core is located in the low flow resistance channel and at the connection between the two shell sections. The flame-arresting core has a rotating structure and is coaxially arranged with the low flow resistance channel.
[0007] A sealing assembly, which is a high-temperature graphite gasket or a metal spiral wound gasket, is located at the connection between the housing and the flame arrestor core and is tightly abutted against both.
[0008] Preferably, the two sections of the housing are connected by a number of bolts and nuts, and the bolts are arranged in a circular array around the housing.
[0009] Preferably, a self-cleaning structure is provided inside the housing and on the side near the inlet end.
[0010] Preferably, the self-cleaning structure is a dustproof net.
[0011] Preferably, the housing integrates a temperature sensor interface and a pressure sensor interface.
[0012] Preferably, the shell is made of corrosion-resistant alloy or carbon steel.
[0013] Preferably, the flame arrestor core is made of 316L stainless steel or Hastelloy.
[0014] Preferably, the inlet and outlet ends are provided with threaded interfaces or connecting flanges.
[0015] Beneficial effects
[0016] This utility model provides a high-efficiency and energy-saving flame arrester, which has the following beneficial effects:
[0017] The shell adopts a low flow resistance fluid channel design, which minimizes pressure loss when the medium passes through, effectively reducing energy consumption and improving the system's operating efficiency. The flame arrestor core is composed of micron-level honeycomb channels made of multiple layers of special metal corrugated plates or sintered metal fibers. When flames invade, it can divide a single flame into thousands of micro flames and extinguish the fire through multiple mechanisms such as heat conduction effect, free radical blocking and flow rate control, ensuring system safety.
[0018] The sealing assembly uses high-temperature graphite gaskets or metal spiral wound gaskets, combined with dynamic sealing technology, to ensure no leakage during long-term use, avoiding media waste and safety accidents. A self-cleaning structure is set inside the housing near the inlet end to prevent particulate matter from clogging the flame arrestor core, reducing maintenance workload and extending the service life of the flame arrestor.
[0019] The two shell sections are connected by bolts and nuts. The modular design of the flame arrestor core facilitates quick disassembly and installation, and allows for regular inspection and maintenance. It eliminates the need to completely disassemble the flame arrestor, thus reducing maintenance costs. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model.
[0021] In the diagram: 1. Housing; 2. Flame arrestor core; 3. Sealing assembly; 4. Bolt; 5. Nut. Detailed Implementation
[0022] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1 This utility model provides a technical solution: a high-efficiency and energy-saving flame arrester, comprising:
[0024] The housing 1 has a split structure and has an inlet end and an outlet end, as well as a low flow resistance fluid channel connecting the inlet end and the outlet end. The inlet end and the outlet end are connected to the low flow resistance channel through an expansion section.
[0025] The flame-arresting core 2 is composed of multiple layers of special metal corrugated plates or sintered metal fibers, forming a micron-level honeycomb channel. The flame-arresting core 2 is located in the low flow resistance channel and at the connection between the two shell sections 1. The flame-arresting core 2 is a rotating structure and is coaxially arranged with the low flow resistance channel.
[0026] The sealing component 3 is a high-temperature graphite gasket or a metal spiral wound gasket. The sealing component 3 is located at the connection between the housing 1 and the flame arrestor core 2 and is tightly abutted against both of them.
[0027] By adopting the above technical solution, the medium enters from the inlet end, passes through the expansion section into the low flow resistance fluid channel, passes through the flame arrestor core 2, and then exits from the outlet end through the expansion section. Under normal operating conditions, the medium flows smoothly; under flame intrusion conditions, the flame is extinguished by the flame arrestor core 2. The low flow resistance fluid channel design reduces the pressure loss of the medium flow, achieving high efficiency and energy saving; the structure and setting of the flame arrestor core 2 ensures the flame arresting performance; the sealing component 3 ensures the sealing of the connection between the shell 1 and the flame arrestor core 2.
[0028] In this embodiment, the two sections of the housing 1 are connected by a number of bolts 4 and nuts 5, and the bolts 4 are arranged in a ring array around the housing 1.
[0029] By adopting the above technical solution, several bolts 4 and nuts 5 are arranged in a circular array around the shell 1, so that the two sections of the shell 1 are firmly connected, and at the same time, it is easy to disassemble and install, and convenient to inspect and maintain the inside of the flame arrester.
[0030] In this embodiment, a self-cleaning structure is provided inside the housing 1 on the side near the inlet end.
[0031] By adopting the above technical solution, when the medium enters the flame arrester, it may carry some particulate matter. These particulate matter flow with the medium to the flame arrester core 2. The self-cleaning structure can block the particulate matter from entering the flame arrester core 2, avoid the flame arrester core 2 from being blocked, ensure the normal operation of the flame arrester, and reduce the amount of maintenance work.
[0032] In this embodiment, the self-cleaning structure is further configured as a dustproof net.
[0033] By adopting the above technical solution, the dustproof net, as a self-cleaning structure, can effectively filter particulate matter in the medium. It has a simple structure, low cost, and good filtration effect.
[0034] In this embodiment, the housing 1 is further configured to integrate a temperature sensor interface and a pressure sensor interface.
[0035] By adopting the above technical solution, the integration of temperature sensor interface and pressure sensor interface facilitates the installation of temperature sensor and pressure sensor, enabling real-time monitoring of the flame arrester's operating condition and timely detection of potential safety issues.
[0036] In this embodiment, the shell 1 is further configured to be made of corrosion-resistant alloy or carbon steel.
[0037] By adopting the above technical solution, the shell 1 is made of corrosion-resistant alloy or carbon steel, which can improve the corrosion resistance of the shell 1, extend the service life of the flame arrester, and make it suitable for various industrial environments.
[0038] In this embodiment, the flame arrestor core 2 is further configured to be made of 316L stainless steel or Hastelloy.
[0039] By adopting the above technical solution, the flame arrestor core 2 is made of 316L stainless steel or Hastelloy, which has high thermal conductivity and can quickly absorb the heat of the flame, reduce the temperature below the ignition point, and effectively achieve the fire extinguishing function.
[0040] In this embodiment, the inlet end and the outlet end are further provided with threaded interfaces or connecting flanges.
[0041] By adopting the above technical solution, threaded interfaces or connecting flanges are provided at the inlet and outlet ends, which facilitates connection with the pipeline system and improves the convenience and versatility of installation.
[0042] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.
[0043] Example: Metal sheets are processed using precision stamping technology to ensure the dimensional accuracy of microholes and protrusions. A fire-retardant core 2 composed of multi-layer special metal corrugated plates or sintered metal fibers is then manufactured. The fire-retardant core 2 is fixed by welding or bolts 4 to ensure structural strength and stability.
[0044] The housing 1 is made of corrosion-resistant alloy or carbon steel. Low flow resistance fluid channels and expansion sections are machined inside the housing 1, and temperature sensor interface and pressure sensor interface are integrated.
[0045] A high-temperature graphite gasket or metal spiral wound gasket is installed at the connection between the shell 1 and the flame arrestor core 2 as a sealing component 3. Combined with dynamic sealing technology, it ensures that there is no leakage during long-term use. The two sections of the shell 1 are connected with several bolts 4 and nuts 5. A dustproof net is installed inside the shell 1 near the inlet end as a self-cleaning structure to prevent particulate matter from clogging the flame arrestor core 2. The flame arrestor is installed into the pipeline system through a connecting flange or threaded interface.
[0046] 1) Normal operating conditions (no flame)
[0047] The medium (gas / liquid) flows through the flame arrestor core 2 along the optimized flow channel of the shell 1. Due to the pressure drop of the flow channel design being <0.01MPa, energy consumption is reduced by 40% compared to traditional models.
[0048] Built-in self-cleaning structure (such as dust filter) prevents particulate matter from clogging the flame arrestor core 2.
[0049] 2) Flame intrusion condition
[0050] The flame front enters the flame arrester → high-speed airflow drives the flame to impact the flame arrester core 2 → the metal channel divides the single flame into thousands of micro-flames.
[0051] The flame arrestor core 2 extinguishes fires through the following mechanism:
[0052] a. Thermal conduction effect: Metal materials instantly absorb the heat of the flame, causing the temperature to drop below the ignition point.
[0053] b. Free radical blocking: The narrow channel wall quenches the active free radicals required for the combustion chain reaction.
[0054] c. Flow rate control: The channel design ensures that the flame propagation speed is less than the critical quenching speed (usually less than 0.5 m / s).
[0055] 3) Safety Output
[0056] The low-temperature gas after fire extinguishing is discharged through the outlet end, and the system pressure fluctuation is <5% (achieved by setting a buffer chamber in the shell 1).
[0057] An optional linkage system can be added to trigger an alarm or shut down the upstream valve.
[0058] Regularly check the working status of the flame arrester and determine if maintenance is required via the pressure testing interface. Disassemble the flame arrester core module 2 for cleaning or replacement; the entire flame arrester does not need to be disassembled.
[0059] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0060] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high-efficiency and energy-saving flame arrester, characterized in that, include: The housing (1) adopts a split structure and has an inlet end and an outlet end, as well as a low flow resistance fluid channel connecting the inlet end and the outlet end. The inlet end and the outlet end are connected to the low flow resistance channel through an expansion section. The flame arresting core (2) is composed of multiple layers of special metal corrugated plates or sintered metal fibers and forms a micron-level honeycomb channel. The flame arresting core (2) is located in the low flow resistance channel and at the connection of the two shell sections (1). The flame arresting core (2) is a rotating body structure and is coaxially arranged with the low flow resistance channel. The sealing component (3) is a high-temperature graphite gasket or a metal spiral wound gasket. The sealing component (3) is located at the connection between the housing (1) and the flame arrestor core (2) and is pressed against both of them.
2. The high-efficiency energy-saving flame arrester according to claim 1, characterized in that, The two sections of the housing (1) are connected by a number of bolts (4) and nuts (5), and the bolts (4) and nuts (5) are arranged in a ring array around the housing (1).
3. The high-efficiency energy-saving flame arrester according to claim 1, characterized in that, A self-cleaning structure is provided inside the housing (1) and on the side near the inlet end.
4. The high-efficiency energy-saving flame arrester according to claim 3, characterized in that, The self-cleaning structure is a dustproof mesh.
5. A high-efficiency energy-saving flame arrester according to claim 1, characterized in that, The housing (1) integrates a temperature sensor interface and a pressure sensor interface.
6. A high-efficiency energy-saving flame arrester according to any one of claims 1 to 5, characterized in that, The shell (1) is made of corrosion-resistant alloy or carbon steel.
7. A high-efficiency energy-saving flame arrester according to any one of claims 1 to 5, characterized in that, The flame arrestor core (2) is made of 316L stainless steel or Hastelloy.
8. A high-efficiency energy-saving flame arrester according to claim 1, characterized in that, The inlet and outlet ends are equipped with threaded interfaces or connecting flanges.