Brown gas water-gas isolation explosion-proof device

Abstract

The utility model discloses a Brown gas water-gas isolation explosion-proof device which comprises a gas inlet pipeline, a liquid sealing pipe, a plurality of groups of gas storage pipe row units arranged in parallel, a gas collecting pipe and a gas outlet pipeline which are sequentially communicated in the Brown gas conveying direction, and each gas storage pipe row unit comprises a connecting pipe head and a plurality of groups of gas storage branch pipes. The input end of the connecting pipe head is communicated with the liquid sealing pipe, the output end of the gas storage branch pipe is communicated with the gas collecting pipe, and the end part of at least one group of gas storage branch pipes is provided with an anti-explosion sheet. The Brown gas water-gas isolation explosion-proof device can prevent backfire and ensure the safety of a gas source end, can release pressure in time and prevent overpressure damage, and is good in safety.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel conveying equipment, in particular to a Brown gas and water gas isolation explosion-proof device. Background Art

[0002] In the process of using flammable gas, it is necessary to use a high-efficiency flame arrester, also known as a fire prevention device, which is a safety device used to prevent the spread of flames of flammable gas and flammable liquid vapor, and to prevent the safety hazards caused by flashback of the equipment at the gas source end. Brown's gas refers to a 2:1 ratio of hydrogen and oxygen mixed combustible gas produced by water electrolysis. When Brown's gas is ignited or burned alone, it does not need the help of external oxygen to burn, so there is a safety problem of flashback. Its combustion speed is very high, and it is difficult to cut off the gas source when flashback just occurs. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide a Brown gas-water gas isolation explosion-proof device which can prevent backfire and ensure the safety of the gas source end, and can release pressure in time to prevent overpressure damage and has good safety.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A Brownian gas and water vapor isolation explosion-proof device comprises an air inlet pipeline, a liquid seal pipe, a plurality of gas storage pipe row units arranged in parallel, a gas collecting pipe and a gas outlet pipeline which are sequentially connected along the Brownian gas transmission direction. The gas storage pipe row unit comprises a connecting pipe head and a plurality of gas storage branch pipes. The input end of the connecting pipe head is connected to the liquid seal pipe, and the output end of the gas storage branch pipe is connected to the gas collecting pipe. At least one group of the gas storage branch pipes is provided with an explosion-proof plate at the end.

[0006] As a further improvement of the above technical solution:

[0007] The gas storage pipe row unit is a U-shaped structure, and the number of groups of the gas storage branch pipes is set to two groups, including a first gas storage branch pipe and a second gas storage branch pipe, and the end of the first gas storage branch pipe is provided with the explosion-proof plate.

[0008] A liquid sealing cavity connected to the water path of the liquid sealing pipe is provided in the connecting pipe head, so that a gas path is isolated between the first gas storage branch pipe and the second gas storage branch pipe.

[0009] The liquid seal tube is connected to a liquid level tube, and a liquid level sensor is arranged on the liquid level tube.

[0010] The liquid sealing tube is connected to a drain pipe, the drain pipe is provided with a drain valve, and the drain valve is electrically connected to the liquid level sensor.

[0011] An explosion-proof piece is provided at the end of the gas collecting pipe.

[0012] The gas collecting pipe is provided with a pressure sensor and an exhaust valve.

[0013] The air inlet pipeline is provided with a first valve body for controlling the on-off of the air path, and the air outlet pipeline is provided with a second valve body for controlling the on-off of the air path. The first valve body and the second valve body are electrically connected to the pressure sensor respectively.

[0014] Compared with the prior art, the advantages of the utility model are:

[0015] The Brownian gas and water vapor isolation explosion-proof device of the utility model adopts a structural form in which a liquid sealing pipe, multiple groups of gas storage pipe row units and a gas collecting pipe are connected in sequence. The gas storage pipe row unit is isolated from the air intake pipeline by water vapor through the liquid sealing pipe to prevent the flashback flame from flowing back to the gas source end. At the same time, the multiple groups of gas storage pipe row units are arranged in parallel to divert the Brownian gas transported by the air intake pipeline into multiple groups of gas storage branch pipes. The volume of Brownian gas stored in each group of gas storage branch pipes is small. When flashback occurs, the heat and pressure released by the combustion in the gas storage branch pipes are also small. In addition, an explosion-proof plate is provided at the end of at least one group of gas storage branch pipes in each group of gas storage pipe row units, so that when Brownian gas flashback occurs in the gas storage pipe row unit, the explosion-proof plate can explode at a specified temperature and pressure to release the pressure, thereby preventing the gas storage pipe row unit from being damaged by overpressure, thereby effectively improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of the Brown gas and water gas isolation explosion-proof device.

[0017] Figure 2 It is a schematic diagram of the connection structure of the air intake pipeline, liquid seal pipe and air storage pipe row unit.

[0018] Figure 3 It is a schematic diagram of the connection structure of the gas storage pipe row unit, the gas collecting pipe and the gas outlet pipeline.

[0019] Figure 4 This is a structural schematic diagram of the Brown gas-water gas isolation explosion-proof device from another angle.

[0020] Figure 5 This is a schematic diagram of the principle of the Brown gas and water gas isolation explosion-proof device.

[0021] Figure 6 This is a schematic diagram of the application of Brown gas and water gas isolation explosion-proof device in the anti-backfire system.

[0022] Legend:

[0023] 1. Air inlet pipeline; 101. First valve body; 2. Liquid seal pipe; 201. Liquid level pipe; 202. Liquid level sensor; 203. Drain pipe; 204. Drain valve; 3. Air storage pipe row unit; 301. Connecting pipe head; 3011. Liquid seal chamber; 302. Air storage branch pipe; 3021. First air storage branch pipe; 3022. Second air storage branch pipe; 4. Air collecting pipe; 401. Pressure sensor; 402. Exhaust valve; 5. Air outlet pipeline; 501. Second valve body; 6. Explosion-proof disk. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] like Figures 1 to 6 As shown, the Brownian gas and water gas isolation explosion-proof device of this embodiment includes an air inlet pipeline 1, a liquid seal pipe 2, a plurality of gas storage pipe row units 3 arranged in parallel, a gas collecting pipe 4 and a gas outlet pipeline 5 which are sequentially connected along the Brownian gas transmission direction. The gas storage pipe row unit 3 includes a connecting pipe head 301 and a plurality of gas storage branch pipes 302. The input end of the connecting pipe head 301 is connected to the liquid seal pipe 2, and the output end of the gas storage branch pipe 302 is connected to the gas collecting pipe 4. At least one group of gas storage branch pipes 302 is provided with an explosion-proof plate 6 at the end. The Brownian gas water vapor isolation explosion-proof device adopts a structural form in which a liquid seal tube 2, multiple groups of gas storage pipe row units 3 and a gas collecting pipe 4 are connected in sequence. The gas storage pipe row unit 3 is water-vapor isolated from the air intake pipeline 1 by the liquid seal tube 2 to prevent the backfire flame from flowing back to the gas source end. At the same time, the multiple groups of gas storage pipe row units 3 are arranged in parallel to divert the Brownian gas transported by the air intake pipeline 1 to multiple groups of gas storage branch pipes 302. The volume of Brownian gas stored in each group of gas storage branch pipes 302 is small. When backfire occurs, the heat and pressure released by the combustion in the gas storage branch pipes 302 are also small. In addition, an explosion-proof plate 6 is provided at the end of at least one group of gas storage branch pipes 302 in each group of gas storage pipe row units 3, so that when Brownian gas backfire occurs in the gas storage pipe row unit 3, the explosion-proof plate 6 can explode at the specified temperature and pressure to release the pressure, prevent the gas storage pipe row unit 3 from being damaged by overpressure, and effectively improve safety.

[0026] Preferably, the gas storage pipe row unit 3 is a U-shaped structure, and the number of groups of the gas storage branch pipes 302 is set to two groups, including a first gas storage branch pipe 3021 and a second gas storage branch pipe 3022, and an explosion-proof disc 6 is provided at the end of the first gas storage branch pipe 3021. In this embodiment, the connecting pipe head 301 of the gas storage pipe row unit 3 is a U-shaped elbow with two connecting ports, and the first gas storage branch pipe 3021 and the second gas storage branch pipe 3022 are connected to the two connecting ports respectively, so that the gas storage pipe row unit 3 is a U-shaped structure as a whole. In other embodiments, the connecting pipe head 301 can also be set to have three or more connecting ports, and the number of groups of the gas storage branch pipes 302 is correspondingly set to three or more groups, and an explosion-proof disc 6 is provided at the end of at least one group of gas storage branch pipes 302, so that when the Brown gas flashback phenomenon occurs in the gas storage pipe row unit 3, the explosion-proof disc 6 can explode at a specified temperature and pressure to release the pressure and prevent the gas storage pipe row unit 3 from being damaged by overpressure.

[0027] Preferably, a liquid seal cavity 3011 connected to the liquid seal pipe 2 by water is provided in the connecting pipe head 301, so that a gas path is separated between the first gas storage branch pipe 3021 and the second gas storage branch pipe 3022. In this embodiment, the Brownian gas is transported to each group of gas storage pipe row units 3 through the air intake pipeline 1 and the liquid seal pipe 2. Since the liquid seal cavity 3011 is provided in the connecting pipe head 301, a gas path is separated between the first gas storage branch pipe 3021 and the second gas storage branch pipe 3022, so the Brownian gas is diverted and stored in the first gas storage branch pipe 3021 and the second gas storage branch pipe 3022. The gas volume in a single gas storage branch pipe 302 is small. When the Brownian gas flashback phenomenon occurs, the heat released by combustion and the expanded volume are also small, which can improve safety.

[0028] Preferably, the liquid seal tube 2 is connected to a liquid level tube 201, and a liquid level sensor 202 is provided on the liquid level tube 201. In this embodiment, the liquid level tube 201 and the connecting pipe head 301 form a communicating vessel, so the liquid level in the liquid level tube 201 is level with the liquid level in the connecting pipe head 301. When the liquid level sensor 202 detects that the liquid level is too low, resulting in the gas path between the first gas storage branch pipe 3021 and the second gas storage branch pipe 3022 being connected, a control signal is sent to stop the gas intake pipeline 1 from intake and to prompt the staff to add water so that the liquid level is raised to a normal height.

[0029] Preferably, the liquid seal tube 2 is connected to a drain pipe 203, a drain valve 204 is provided on the drain pipe 203, and the drain valve 204 is electrically connected to the liquid level sensor 202. In this embodiment, when the liquid level sensor 202 detects that the liquid level is too high, a control signal is sent to open the drain valve 204, and water flows back into the water tank through the drain pipe 203. After the liquid level drops to a normal height, the liquid level sensor 202 sends a control signal to close the drain valve 204.

[0030] Preferably, the end of the gas collecting pipe 4 is provided with an explosion-proof disc 6. In this embodiment, the gas collecting pipe 4 is provided with an explosion-proof disc 6, and when Brownian gas flashback occurs, the explosion-proof disc 6 can explode and release pressure to prevent the gas collecting pipe 4 from being damaged by overpressure, thereby further improving safety.

[0031] Preferably, a pressure sensor 401 and an exhaust valve 402 are provided on the gas collecting pipe 4. In this embodiment, when the staff needs to inspect and maintain the Brown's gas and water gas isolation explosion-proof device, the Brown's gas remaining in the device can be emptied through the exhaust valve 402 to prevent safety hazards.

[0032] Preferably, the air inlet pipeline 1 is provided with a first valve body 101 for controlling the on-off of the air path, and the air outlet pipeline 5 is provided with a second valve body 501 for controlling the on-off of the air path, and the first valve body 101 and the second valve body 501 are respectively electrically connected to the pressure sensor 401. In this embodiment, when the explosion-proof disc 6 on the gas collecting pipe 4 or the explosion-proof disc 6 on the gas storage pipe row unit 3 explodes, the pressure in the gas collecting pipe 4 decreases rapidly, and the pressure sensor 401 sends a control signal after detecting the decrease in the pressure in the pipe, so that the first valve body 101 and the second valve body 501 are closed at the same time, and after the exhaust valve 402 is cooperated to exhaust the brown gas, the staff can perform troubleshooting and repair and maintenance on the device.

[0033] It should be noted that if Figure 6 The figure shows a schematic diagram of the application of Brown's gas and water vapor isolation explosion-proof device in the anti-backfire system, in which three sets of Brown's gas and water vapor isolation explosion-proof devices are installed in parallel, and the air intake pipeline 1 transports Brown's gas to three sets of liquid seal tubes 2 respectively through branch pipelines, and three sets of gas collecting pipes 4 collect Brown's gas through a merging pipeline and transport the Brown's gas to the next component, and three sets of drain pipes 203 collect water through a merging pipeline and discharge excess water.

[0034] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art, improvements and changes obtained without departing from the technical concept of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A Brown gas and water gas isolation explosion-proof device, characterized in that: The invention comprises an air inlet pipeline (1), a liquid seal pipe (2), a plurality of gas storage pipe row units (3) arranged in parallel, a gas collecting pipe (4), and an air outlet pipeline (5) which are sequentially connected and arranged along the Brownian gas transmission direction. The gas storage pipe row unit (3) comprises a connecting pipe head (301) and a plurality of gas storage branch pipes (302). The input end of the connecting pipe head (301) is connected to the liquid seal pipe (2), and the output end of the gas storage branch pipe (302) is connected to the gas collecting pipe (4). An explosion-proof plate (6) is provided at the end of at least one group of the gas storage branch pipes (302).

2. The Brown gas and water gas isolation explosion-proof device according to claim 1, characterized in that: The gas storage pipe row unit (3) is a U-shaped structure, the number of groups of the gas storage branch pipes (302) is set to two groups, including a first gas storage branch pipe (3021) and a second gas storage branch pipe (3022), and the end of the first gas storage branch pipe (3021) is provided with the explosion-proof plate (6).

3. The Brown gas and water gas isolation explosion-proof device according to claim 2, characterized in that: The connecting pipe head (301) is provided with a liquid sealing cavity (3011) in water communication with the liquid sealing pipe (2), so as to form a gas path isolation between the first gas storage branch pipe (3021) and the second gas storage branch pipe (3022).

4. The Brown gas and water gas isolation explosion-proof device according to claim 3, characterized in that: The liquid seal tube (2) is connected to a liquid level tube (201), and a liquid level sensor (202) is provided on the liquid level tube (201).

5. The Brown gas and water gas isolation explosion-proof device according to claim 4, characterized in that: The liquid seal tube (2) is connected to a liquid discharge tube (203), a liquid discharge valve (204) is provided on the liquid discharge tube (203), and the liquid discharge valve (204) is electrically connected to the liquid level sensor (202).

6. The Brown gas and water gas isolation explosion-proof device according to claim 5, characterized in that: An explosion-proof plate (6) is provided at the end of the gas collecting pipe (4).

7. The Brown gas and water gas isolation explosion-proof device according to claim 6, characterized in that: The gas collecting pipe (4) is provided with a pressure sensor (401) and an exhaust valve (402).

8. The Brown gas and water gas isolation explosion-proof device according to claim 7, characterized in that: The air inlet pipeline (1) is provided with a first valve body (101) for controlling the on-off of the air path, and the air outlet pipeline (5) is provided with a second valve body (501) for controlling the on-off of the air path. The first valve body (101) and the second valve body (501) are respectively electrically connected to the pressure sensor (401).

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