Fire-retardant assembly with explosion-proof and water-filtering functions for hydrogen and oxygen electrolysis device

Abstract

The utility model belongs to but not limited to the technical field of fire prevention, and particularly relates to a flame-retardant component with explosion-proof and water-filtering functions for an electrolytic oxyhydrogen device, which comprises an inlet and outlet flange sealing cover and a flame-retardant element and can be opened and closed to realize gas discharge and water input. The flame-retardant assembly with the explosion-proof and water-filtering functions for the hydrogen and oxygen electrolysis device can be used for gas-water separation, flame retardance and explosion suppression. The flame-retardant assembly with the explosion-proof and water-filtering functions for the hydrogen and oxygen electrolysis device has the following three functions: 1, a gas-water separation function; 2, a water-blocking and flame-retardant function; and 3, the explosion-proof function is realized.

Description

Technical Field

[0001] The utility model belongs to but is not limited to the field of fire prevention technology, and in particular relates to a fire-retardant component with explosion-proof and water-filtering functions for an electrolytic hydrogen and oxygen device. Background Art

[0002] A flame arrester is a safety device used to prevent the spread of flames from flammable gases and flammable liquid vapors. It is typically installed in pipelines conveying flammable gases or on ventilated tanks to prevent the spread of flames (deflagration or detonation). The device consists of a flame arrester core, a flame arrester housing, and accessories.

[0003] Chinese patent application number CN2564185Y discloses a plate-mesh flame arrester consisting of a flame arrester housing, flanged covers at both ends, and a flame arrester core within the housing. The two flanged covers are connected to the housing, and the flame arrester core is installed within the housing. The flame arrester core is composed of alternating layers of corrugated plate and six layers of metal mesh, with the alternating arrangement consisting of one corrugated plate layer followed by one metal mesh layer. Three parallel bolts, arranged at a 60° angle, pass through the flame arrester core, are first tightened with nuts, and then inserted into bolt holes in three ears on the inner wall of the housing and secured with nuts.

[0004] In view of the above analysis, the technical problem that urgently needs to be solved in the existing technology is: in actual production, the flame arrester core needs to be inserted into the shell first, the long bolt needs to be passed through the bolt hole of the ear, and then the nut needs to be tightened, which is inconvenient to install. Summary of the Invention

[0005] In view of the problems existing in the prior art, the utility model provides a fire-retardant component with explosion-proof and water-filtering functions for an electrolytic hydrogen-oxygen device.

[0006] The present invention is achieved by providing a flame-retardant assembly for an electrolytic hydrogen-oxygen device with explosion-proof and water-filtering functions. The assembly comprises an inlet and outlet flange covers and a flame-retardant element. The inlet and outlet flange covers are bolted to the rest of the electrolytic hydrogen-oxygen device to provide a seal, enabling gas discharge and water input. The flame-retardant element is welded to the flange covers. The flame-retardant element is composed of a stainless steel seamless tube and a flame-retardant core. The flame-retardant core is installed within the stainless steel tube. The flame-retardant core is composed of a corrugated metal layer and a flat metal layer rolled around a central axis and compressed within the stainless steel tube.

[0007] Furthermore, the fire-blocking assembly includes inlet and outlet flange covers and a fire-blocking element. The inlet and outlet flange covers are sealed and connected to other parts of the electrolytic hydrogen and oxygen device by bolts. The fire-blocking element is welded and fixed to the flange covers. The fire-blocking element is composed of a stainless steel seamless pipe and a fire-blocking core installed in the stainless steel pipe.

[0008] Furthermore, the fire-retardant core is formed by rolling a metal corrugated plate layer and a metal flat plate layer around a central axis, and the metal corrugated plate layer and the metal flat plate layer are pressed against each other and fixed in the stainless steel tube.

[0009] Furthermore, the metal corrugated plate layer is used to improve the fire resistance and prevent the spread of flames, and the metal flat plate layer is used to enhance the structural strength and explosion-proof function.

[0010] Furthermore, the fire-retardant core provided in the stainless steel seamless pipe can capture water vapor or tiny droplets in the hydrogen and oxygen gas passing through and cause them to condense and drip, thereby achieving separation of gas and water.

[0011] Furthermore, the inlet and outlet flange covers have a gas outlet and a water inlet, and the sealed connection between the inlet and outlet flange covers and the fire-blocking element can ensure smooth gas discharge and prevent liquid leakage.

[0012] Furthermore, the structural design of the fire-blocking element takes into account the explosion-proof requirements in extreme situations. The combination of the metal corrugated plate layer and the metal flat plate layer can effectively reduce the explosion pressure and curb the spread of flames and explosion chain reactions.

[0013] In combination with the above technical solutions and the technical problems solved, the advantages and positive effects of the technical solutions to be protected by the present utility model are as follows:

[0014] First, the three functions of the fire-blocking component:

[0015] Gas-water separation function

[0016] The flame arrester is designed with an effective gas-water separation mechanism. As gas passes through the flame arrester, the internal material captures water vapor or tiny droplets carried in the gas, causing them to condense and drip, thus achieving gas-water separation. This is crucial for preventing moisture from entering subsequent equipment, reducing corrosion and malfunction.

[0017] Fire retardant function

[0018] This is one of the core functions of a flame arrester. In flammable and explosive environments, such as those found in coal mines, flame arresters effectively prevent the propagation and spread of flames. When flames are mixed with hydrogen or oxygen, the unique structure of the flame arrester creates dense channels and a barrier layer, rapidly reducing the flame temperature and dissipating its energy. Through heat absorption and dissipation, the flame is extinguished, thereby preventing explosions. Furthermore, flame arresters prevent backfire, safeguarding the safe operation of equipment such as diesel engines.

[0019] Explosion-proof function

[0020] In extreme cases, such as an explosion within the system, the flame arrester assembly can also act as a flameproof barrier. Its robust structure and sealed design effectively block the shock wave and flames generated by the explosion, preventing them from propagating to other parts of the system or the external environment, thereby protecting surrounding equipment and personnel.

[0021] Second, the technical solution of this utility model solves the technical problems that people have been eager to solve but have never been able to solve successfully:

[0022] The electrolysis of water to produce hydrogen and oxygen places extremely high demands on equipment safety due to the high flammability of hydrogen and the combustion-supporting properties of oxygen. While traditional devices incorporate flame arresters to prevent flashback, the potential impact of water vapor and water droplets generated during the electrolysis process on equipment performance and safety is often overlooked. Through innovative structural design and material selection, this utility model successfully addresses the technical challenges of combining explosion isolation and water filtration in hydrogen and oxygen electrolysis devices, improving equipment safety and resolving the technical challenges of traditional devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a cross-sectional view of a fire-retardant assembly with explosion-proof and water-filtering functions for an electrolytic hydrogen-oxygen device provided by an embodiment of the present utility model;

[0024] Figure 2 It is a top view of a fire-retardant assembly with explosion-proof and water-filtering functions for an electrolytic hydrogen-oxygen device provided by an embodiment of the present utility model.

[0025] In the figure: 1. Flange cover; 2. Fire-blocking element; 3. Stainless steel seamless pipe; 4. Fire-blocking core. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] The present invention provides a flame-proof, water-filtering flame-retardant assembly for an electrolytic hydrogen-oxygen device. The assembly comprises an inlet and outlet flange cover 1 and a flame-retardant element 2. The inlet and outlet flange cover 1 is bolted to the rest of the electrolytic hydrogen-oxygen device to provide a seal, enabling gas discharge and water input. The flame-retardant element 2 is welded to the flange cover 1 and is comprised of a stainless steel seamless tube 3 and a flame-retardant core 4. The flame-retardant core 4 is mounted within the stainless steel tube. The core 4 is formed by rolling a corrugated metal layer and a flat metal layer around a central axis and is compressed within the stainless steel tube.

[0028] The flame arrester component is an important part of the electrolytic hydrogen and oxygen device. Its working principle can be divided into the following three aspects:

[0029] First, the flame arrester assembly is tightly connected to the rest of the oxyhydrogen electrolysis device via the inlet and outlet flange covers 1. When the device is operating normally, the oxyhydrogen gas generated during electrolysis enters the flame arrester element 2. During this process, the internal material of the flame arrester element 2 captures water vapor or tiny droplets carried in the gas, causing them to condense and drip, thereby achieving efficient separation of gas and water. This ensures smooth gas flow and improves the overall operating efficiency of the device.

[0030] Secondly, flame retardancy is a key component of this component. Safety is paramount during the hydrogen-oxygen electrolysis process due to the flammability of hydrogen. The flame retardant component utilizes a special flame retardant material, consisting of a corrugated metal layer and a flat metal layer rolled around a central axis. This material effectively blocks the spread of flames, preventing fires caused by hydrogen leaks. Furthermore, its flame retardant properties can effectively contain the spread of fire at critical moments, providing additional safety protection for the device.

[0031] Finally, the flame arrester assembly effectively reduces explosion pressure in extreme situations, effectively providing explosion isolation. This assembly's design fully considers its ability to respond to extreme events like explosions. Its robust structure and sophisticated sealing effectively contain the chain reaction of explosions. The flame arrester's specialized materials and structure disrupt the flame's propagation chain, further enhancing its explosion isolation capabilities.

[0032] The three functions of the fire-retardant component with explosion-proof and water-filtering function used in the electrolytic hydrogen and oxygen device are:

[0033] 1. Gas-water separation function.

[0034] 2. Water-resistant and flame-retardant function.

[0035] 3. Explosion-proof function.

[0036] Implementation case: flame-retardant components for industrial electrolytic hydrogen and oxygen devices

[0037] The fire-blocking assembly in this embodiment is used in an electrolytic hydrogen-oxygen device, primarily to ensure the safe discharge of high-yield hydrogen and oxygen, and has higher water-blocking, flame-retardant, and explosion-proof capabilities. The assembly includes an inlet and outlet flange cover 1 and a fire-blocking element 2.

[0038] 1. Inlet and outlet flange cover 1: Made of stainless steel, capable of withstanding high pressure and temperature conditions. The inlet of flange cover 1 is connected to the gas outlet of the electrolysis unit, and the outlet of flange cover 1 is connected to the gas treatment system.

[0039] 2. Fire arrester element 2: Made of a layer of corrugated metal and a layer of flat metal rolled around a central axis and compressed tightly inside the metal tube, it effectively blocks flames and filters moisture, has excellent pressure and corrosion resistance, improves gas dryness, and ensures gas purity.

[0040] The application of this flame arrester component in industrial hydrogen and oxygen electrolysis equipment significantly improves the safety and reliability of the equipment. It ensures the purity of hydrogen and oxygen, avoids the risk of flame backflow and explosion, and adapts to the needs of industrial applications under high-volume and high-pressure conditions.

[0041] The above-mentioned specific implementation cases demonstrate that the flame-retardant assembly of this utility model provides important safety features in industrial hydrogen-oxygen electrolysis equipment. Its gas-water separation, flame-retardant, and explosion-proof design not only improves equipment safety but also ensures the quality of gas output, thus having significant implications for industrial applications.

[0042] The flame arrester of the utility model has the function of explosion-proof and water filtering. Its application fields are mainly concentrated in industrial environments with extremely high requirements for safety and stability, especially industrial fields with high explosion-proof requirements and involving the treatment of flammable and explosive gases, such as underground coal mines, natural gas extraction and processing, chemical raw material production, etc., all of which require flame arresters with similar functions to ensure production safety.

[0043] The flame arrester of the utility model is mainly used in industrial electrolytic hydrogen and oxygen devices.

[0044] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] The above is only a specific implementation method of the present invention, but the scope of protection of the present invention is not limited to this. Any modifications, equivalent substitutions and improvements made by any technician familiar with this technical field within the technical scope disclosed by the present invention and within the spirit and principles of the present invention should be covered by the scope of protection of the present invention.

Claims

1. A fire-retardant assembly with explosion-proof and water-filtration functions for an electrolytic hydrogen and oxygen device, characterized in that: The fire-stop assembly includes an inlet and outlet flange cover and a fire-stop element. The inlet and outlet flange cover is sealed with other parts of the electrolytic hydrogen and oxygen device by bolts. The fire-stop element is welded and fixed to the flange cover. The fire-stop element is composed of a stainless steel seamless pipe and a fire-stop core installed in the stainless steel pipe.

2. The fire-stop assembly according to claim 1, characterized in that The fire-retardant core is formed by rolling a metal corrugated plate layer and a metal flat plate layer around a central axis. The metal corrugated plate layer and the metal flat plate layer are pressed against each other and fixed in the stainless steel tube.

3. The fire-stop assembly according to claim 2, characterized in that The metal corrugated plate layer is used to improve the fire-retardant performance and prevent the spread of flames, and the metal flat plate layer is used to enhance the structural strength and explosion-proof function.

4. The fire-stop assembly according to claim 1, wherein: The fire-retardant core arranged in the stainless steel seamless pipe can capture water vapor or tiny droplets in the hydrogen and oxygen gas passing through, and make them condense and drip, so as to achieve separation of gas and water.

5. The fire-stop assembly according to claim 1, wherein: The inlet and outlet flange covers have a gas outlet and a water inlet, and the sealed connection between the inlet and outlet flange covers and the fire-blocking element can ensure smooth gas discharge and prevent liquid leakage.

6. The fire-stop assembly according to claim 2, wherein: The structural design of the fire-blocking element takes into account the explosion-proof requirements in extreme situations. The combination of the metal corrugated plate layer and the metal flat plate layer can effectively reduce the explosion pressure and curb the spread of flames and explosion chain reactions.

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