An interlock system for an acetylene storage

Abstract

The application discloses an interlocking system for an acetylene warehouse, which comprises a detection device, an alarm device, an exhaust device and a control device; the detection device is arranged in the acetylene warehouse and is used for detecting the gas concentration in the acetylene warehouse; the alarm device is electrically connected with the detection device and is used for issuing an alarm; the exhaust device is arranged in interlocking with the alarm device and is used for exhausting the gas in the acetylene warehouse when the alarm device issues an alarm; the exhaust device is provided with a plurality of exhaust devices; the control device is arranged outside the acetylene warehouse and is electrically connected with the alarm device and the exhaust device and is used for controlling the opening and closing of the exhaust device. According to the scheme, when the audible and visual alarm issues an alarm, the exhaust device can be quickly opened, so that the probability of accident escalation can be reduced.

Description

Technical Field

[0001] This application generally relates to the field of coal mining technology. More specifically, this application relates to an interlocking system for an acetylene warehouse. Background Technology

[0002] Acetylene is a simple alkyne compound and one of the most important flammable gases in industry. It is highly reactive and can burn in oxygen to produce an oxyacetylene flame at extremely high temperatures (e.g., over 3000 degrees Celsius), making it one of the hottest known gaseous flames. The high-temperature flame produced by acetylene can be used to melt metal joints and welding rods for welding. Furthermore, the high-temperature flame can be used to locally heat metal to its ignition point (approximately 1000 degrees Celsius or higher), and then a high-speed stream of oxygen can be injected, causing the metal to oxidize (burn) violently and blowing away the molten slag, thereby cutting the metal (e.g., cutting thick steel plates). It is important to understand that acetylene is a flammable and explosive gas, and it is prone to decomposition and explosion under high pressure. Therefore, proper precautions must be taken when storing acetylene.

[0003] However, in existing technologies, acetylene warehouses are typically equipped with only one ventilation fan, one gas sensor, and one audible and visual alarm. Therefore, when any of these components malfunctions, acetylene venting can fail, placing the warehouse in a hazardous situation. Furthermore, the coverage of a single sensor is limited, potentially failing to comprehensively monitor the gas concentration within the warehouse, creating blind spots. Additionally, while the audible and visual alarm will sound when the gas sensor detects acetylene, the ventilation fan still needs to be manually turned on, resulting in a slow response time and an inability to control gas diffusion quickly enough, posing a safety hazard.

[0004] In view of this, there is an urgent need to provide an interlocking system for acetylene warehouses so that the exhaust device can be quickly activated when the audible and visual alarm is triggered. Utility Model Content

[0005] In order to at least solve one or more of the technical problems mentioned above, this application proposes a scheme for an interlocking system for acetylene warehouses in one aspect.

[0006] In a first aspect, this application provides an interlocking system for an acetylene warehouse, comprising a detection device, an alarm device, an exhaust device, and a control device; wherein the detection device is disposed inside the acetylene warehouse for detecting the gas concentration inside the acetylene warehouse; the alarm device is electrically connected to the detection device for issuing an alarm; the exhaust device is interlocked with the alarm device for discharging gas from the acetylene warehouse when the alarm device issues an alarm, wherein multiple exhaust devices are disposed; the control device is disposed outside the acetylene warehouse and electrically connected to the alarm device and the exhaust devices for controlling the switching of the exhaust devices.

[0007] In some embodiments, the detection device includes a fixed acetylene gas detector for detecting the concentration of acetylene in an acetylene warehouse.

[0008] In some embodiments, the detection device further includes a multi-gas composite detector for detecting the concentration of one or more gases, including oxygen, acetone, and carbon monoxide, in the acetylene warehouse.

[0009] In some embodiments, the alarm device includes an audible and visual alarm, which includes a red and blue flashing light and a buzzer.

[0010] In some embodiments, multiple audible and visual alarms are provided for redundant protection.

[0011] In some embodiments, multiple detection devices are provided and are located in the first area, the second area, and the entrance / exit of the acetylene warehouse. The first area contains acetylene cylinders, and the second area is equipped with valves for opening and closing the cylinders.

[0012] In some embodiments, the exhaust device includes an axial flow fan, a pneumatic / electric damper, and an air duct.

[0013] In some embodiments, the control device includes a display screen and a central control room, wherein the display screen is used to display parameter information within the acetylene warehouse, and the central control room is used to control the gas supply valves and exhaust devices within the acetylene warehouse.

[0014] In some embodiments, the interlocking system further includes an explosion-proof device, which is disposed on one or more of the detection device, alarm device, venting device, and control device.

[0015] The interlocking system for acetylene warehouses described above enables the rapid activation of the exhaust system when the audible and visual alarm sounds, thus avoiding human error and reducing the probability of escalation. Furthermore, by setting multiple detection devices, the concentration of acetylene gas in different areas can be detected, allowing for more accurate information about acetylene leaks and improving safety. Attached Figure Description

[0016] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application are illustrated by way of example and not limitation, and the same or corresponding reference numerals denote the same or corresponding parts, wherein: Figure 1 Exemplary block diagrams of interlocking systems for acetylene warehouses according to some embodiments are shown. Figure 2a Exemplary structural diagrams of the detection apparatus according to other embodiments of this application are shown; Figure 2b Exemplary structural diagrams of alarm devices according to other embodiments of this application are shown; Figure 2c Exemplary structural diagrams of exhaust devices according to other embodiments of this application are shown. Detailed Implementation

[0017] 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, not all, of the embodiments of this application. 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.

[0018] It should be understood that the terms "comprising" and "including" used in the specification and claims of this application indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0019] It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application. As used in this specification and claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this specification and claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations.

[0020] As used in this specification and claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if [described condition or event] is detected" may be interpreted, depending on the context, as "once determined," "in response to determination," "once [described condition or event] is detected," or "in response to detection of [described condition or event]."

[0021] The specific embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0022] Exemplary application scenarios.

[0023] Figure 1 Exemplary block diagrams of interlocking systems for acetylene warehouses according to some embodiments are shown. Figure 2a Exemplary structural diagrams of detection apparatuses according to other embodiments of this application are shown. Figure 2b Exemplary structural diagrams of alarm devices according to other embodiments of this application are shown. For example... Figure 1 , Figure 2a , Figure 2b As shown, the interlocking system includes a detection device, an alarm device, an exhaust device, and a control device. The detection device is located inside the acetylene warehouse and is used to detect the gas concentration within the warehouse. The alarm device is electrically connected to the detection device and is used to issue an alarm. The exhaust device is interlocked with the alarm device and is used to exhaust gas from the acetylene warehouse when the alarm is triggered. Multiple exhaust devices are provided. The control device is located outside the acetylene warehouse and is electrically connected to the alarm device and the exhaust devices, used to control the switching of the exhaust devices.

[0024] In some embodiments, the detection device includes a fixed acetylene gas detector for detecting the concentration of acetylene in the acetylene warehouse. In some embodiments, the detection device further includes a multi-gas composite detector for detecting the concentration of one or more gases, including oxygen, acetone, and carbon monoxide, in the acetylene warehouse.

[0025] In some embodiments, the detection device may include a fixed acetylene gas detector, which may be an infrared sensor or a catalytic combustion sensor, to detect the concentration of acetylene in the acetylene warehouse.

[0026] Preferably, an infrared sensor can be selected, which can be based on the absorption of specific infrared wavelengths (e.g., 3.0~3.5μm) by acetylene molecules and can operate in a vacuum environment without the need for oxygen. Furthermore, it produces no sparks during detection, while catalytic combustion sensors require oxygen and their internal bridge resistance changes with the combustion of combustible gases, posing a risk of poisoning. Therefore, using an infrared sensor is safer than using a catalytic combustion sensor. In addition, the infrared sensor can accurately capture the acetylene absorption peak using a narrow-band filter (e.g., 3.3μm), is unaffected by acetone (solvent), water vapor, or carbon dioxide, and incorporates a temperature and pressure sensor to automatically correct for measurement drift caused by environmental changes.

[0027] In some embodiments, the gas in the acetylene warehouse may also include gases such as acetone, oxygen, or carbon monoxide. In some embodiments, a multi-gas composite detector can be used to detect the concentration of one or more of the gases, including oxygen, acetone, and carbon monoxide, in the acetylene warehouse. Specifically, the multi-gas composite detector may include an acetone sensor, an electrochemical oxygen / carbon monoxide sensor, etc.

[0028] In some embodiments, the alarm device includes an audible and visual alarm, which includes a red and blue flashing light and a buzzer.

[0029] In some embodiments, the red-blue strobe light can flash red and blue alternately to enhance visual impact, and its light source intensity can be greater than 1000 cd, thereby ensuring high visibility (e.g., 100 meters) in dense smoke / strong light. Furthermore, its flashing frequency can be 1-2 Hz, which can be higher than the persistence of vision (0.1 s), thereby preventing the human eye from perceiving it as a constantly lit light.

[0030] In some embodiments, the sound pressure level of the buzzer can be set to be greater than a preset sound pressure level (e.g., 100 dB) to cover industrial noise (e.g., the sound of a fan operating, equipment operating, etc.), thereby ensuring that workers can hear it both inside and outside the acetylene warehouse. Furthermore, the buzzer can be set to intermittent buzzing and / or continuous high-frequency buzzing.

[0031] In some embodiments, the exhaust system may include an explosion-proof axial flow fan, which can be the main exhaust system for an acetylene warehouse and can be installed at a high position on the roof or side wall of the acetylene warehouse. In some embodiments, the exhaust system may include an explosion-proof centrifugal fan, which can be installed in a long-distance duct system. In some embodiments, the exhaust system may include a universal exhaust arm, which can be installed near areas such as the filling operation table and valve maintenance points.

[0032] In some embodiments, the alarm device can be interlocked with the exhaust system. Specifically, the alarm device may have a relay output that can be connected to the power supply circuit of the exhaust system. When the alarm device sounds an alarm, it can close its contacts to start the explosion-proof fan, thus enabling the alarm device to be interlocked with the exhaust system.

[0033] In some embodiments, the alarm signal of the alarm device can also be connected to the automatic fire alarm system, and the fire linkage controller can uniformly control the linkage exhaust device so that the exhaust device can be automatically activated when an alarm signal is received, thereby achieving interlocking between the two.

[0034] In some embodiments, the control device may be electrically connected to both the alarm device and the exhaust device, and the control device may control the switching on and off of the exhaust device. In still other embodiments, the control device may be configured to control the opening of the exhaust device after the alarm device issues an alarm signal.

[0035] The solution proposed in this application enables the ventilation fan to be turned on quickly when the audible and visual alarm sounds. Furthermore, by setting multiple detection devices, the concentration of acetylene gas in different areas can be detected. When an acetylene leak occurs, the leak information can be obtained more accurately, thereby improving safety performance.

[0036] In some embodiments, multiple audible and visual alarms are provided for redundant protection.

[0037] In some embodiments, multiple audible and visual alarms can be set up and placed in different areas. When one audible and visual alarm malfunctions, the others can continue to work, ensuring that the alarms do not fail under extreme fault conditions, thereby achieving redundant protection.

[0038] In some embodiments, multiple audible and visual alarms can be installed in different areas. For example, they can be installed inside the main door of the acetylene warehouse, facing the internal passageways of the warehouse. Furthermore, they can be installed in the storage area of ​​the acetylene warehouse. The audible and visual alarms can also be installed at corners of emergency exits, with their buzzers pointing in the escape direction. Even further, the audible and visual alarms can be installed in the perimeter boundary post area of ​​the acetylene warehouse.

[0039] Understandably, since multiple audible and visual alarms are set up, the backup equipment will continue to operate when a single alarm fails.

[0040] In some embodiments, multiple detection devices are provided and are located in the first area, the second area, and the entrance / exit of the acetylene warehouse. The first area contains acetylene cylinders, and the second area contains pipeline valves.

[0041] In some embodiments, the detection device may include an acetylene sensor and a multi-gas detector, etc. A first area of ​​the acetylene warehouse may have cylinder storage racks on which acetylene cylinders can be stored. A second area of ​​the acetylene warehouse may be equipped with pipeline valves.

[0042] In some embodiments, infrared sensors or similar devices may be installed around the first area to detect leaks of acetylene and acetone. In some embodiments, multi-gas detectors or similar devices may be installed in the second area to detect small leaks of acetylene and the concentration of oxygen, etc.

[0043] In other embodiments, a vacuum detector can be installed on the filling platform to detect gases escaping during the filling process. Furthermore, an explosion-proof pressure transmitter can be installed in the dissolving tank area to detect liquid level and pressure, etc.

[0044] In some embodiments, oxygen sensors and / or particle counters can be installed in the air inlet area of ​​the acetylene warehouse to detect oxygen concentration and dust. Furthermore, fixed detectors and / or anemometers can be installed on the exhaust ducts of the acetylene warehouse to detect the presence of residual acetylene and its flow rate. Even further, multi-gas detectors can be installed in dead zones and other areas of the acetylene warehouse to detect gases such as oxygen.

[0045] Figure 2c Exemplary structural diagrams of exhaust devices according to other embodiments of this application are shown. In some embodiments, the exhaust device includes an explosion-proof axial flow fan, an explosion-proof centrifugal fan, and a universal exhaust arm.

[0046] In some embodiments, the exhaust system may include an explosion-proof axial flow fan, which can be the main exhaust system for an acetylene warehouse and can be installed at a high position on the roof or side wall of the acetylene warehouse. In some embodiments, the exhaust system may include an explosion-proof centrifugal fan, which can be installed in a long-distance duct system. In some embodiments, the exhaust system may include a universal exhaust arm, which can be installed near areas such as the filling operation table and valve maintenance points.

[0047] In some embodiments, multiple exhaust devices can be configured, allowing for switching to a backup device if a single device fails. Furthermore, different exhaust devices can be located in different areas, eliminating dead zones and reducing the gradient difference in gas concentration within the acetylene warehouse. Additionally, when the leakage is significant, multiple exhaust devices can operate simultaneously to reduce the likelihood of an explosion. Furthermore, exhaust devices with large exhaust volumes (e.g., vacuum jet exhaust devices) can be selected to improve efficiency.

[0048] By installing an exhaust system, the system can be activated quickly when the acetylene content in the acetylene warehouse exceeds the standard, thereby preventing flammable gases from spreading to non-explosion-proof areas.

[0049] In some embodiments, the control device includes a display screen and a central control room, wherein the display screen is used to display parameter information within the acetylene warehouse, and the central control room is used to control the gas supply valves and exhaust devices within the acetylene warehouse.

[0050] In some embodiments, the parameter information may include gas concentration, fan status, alarm records, and valve status. Specifically, the display screen can show the acetylene gas content at various locations and in different areas within the acetylene warehouse. Furthermore, the display screen can also show the operating status of the exhaust device, indicating whether the exhaust device is currently running or stopped, and can also display signals such as the current and frequency of the exhaust device.

[0051] In some embodiments, the display screen may also display alarm records and valve status within a preset period, such as the opening status of the exhaust valve and the closing status of the intake valve.

[0052] In some embodiments, the central control room can be used to control the gas supply valves and exhaust devices within the acetylene warehouse. Furthermore, the central control room can also coordinate the control of the exhaust devices and fire suppression systems, thereby avoiding human error and reducing the probability of an accident escalating.

[0053] In some embodiments, the interlocking system further includes an explosion-proof device, which is disposed on one or more of the detection device, alarm device, venting device, and control device.

[0054] Specifically, for the detection device, an external protective housing can be installed, and the use of copper alloys should be avoided. During installation, the probe can be separated from the transmitter of the detection device, and the transmitter should be placed in a safe area.

[0055] In some embodiments, the alarm device can be an explosion-proof audible and visual device, and its display terminal can also be an explosion-proof touch screen. The exhaust device can be a combination of an explosion-proof motor and an aluminum alloy impeller, which can reduce static electricity. In some embodiments, an explosion-proof cabinet can be installed outside the control device, and the junction box and power supply inside can also be explosion-proof.

[0056] In this application, by interlocking the audible and visual alarm with the exhaust device, the exhaust device can be quickly activated when the alarm is triggered, thus avoiding human error and reducing the probability of escalation. Furthermore, by setting multiple detection devices, the concentration of acetylene gas in different areas can be detected. When an acetylene leak occurs, the leak information can be obtained more accurately, thereby improving the system's safety performance.

[0057] While numerous embodiments of this application have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will arise for those skilled in the art without departing from the spirit and intent of this application. It should be understood that various alternatives to the embodiments of this application described herein may be employed in the practice of this application. The appended claims are intended to define the scope of protection of this application and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. An interlocking system for an acetylene warehouse, characterized in that, The interlocking system includes a detection device, an alarm device, an exhaust device, and a control device; wherein... The detection device is installed inside the acetylene warehouse and is used to detect the gas concentration inside the acetylene warehouse; The alarm device is electrically connected to the detection device and is used to issue an alarm. The exhaust device is interlocked with the alarm device and is used to exhaust the gas in the acetylene warehouse when the alarm device sounds an alarm. Multiple exhaust devices are provided. The control device is located outside the acetylene warehouse and is electrically connected to the alarm device and the exhaust device, and is used to control the switching of the exhaust device; The detection device includes a fixed acetylene gas detector, used to detect the concentration of acetylene in the acetylene warehouse; The detection device also includes a multi-gas composite detector, used to detect the concentration of one or more gases, including oxygen, acetone, and carbon monoxide, in the acetylene warehouse; An exhaust gas detector is installed on the filling workbench, which can detect the gas that escapes during the filling process. Explosion-proof pressure transmitters are installed in the dissolving tank area to detect liquid level and pressure.

2. The interlocking system according to claim 1, characterized in that, The alarm device includes an audible and visual alarm, which includes a red and blue flashing light and a buzzer.

3. The interlocking system according to claim 2, characterized in that, Multiple audible and visual alarms are provided for redundancy protection.

4. The interlocking system according to claim 1, characterized in that, Multiple detection devices are provided and are installed in the first area, the second area, and the entrance / exit of the acetylene warehouse. The first area contains acetylene cylinders, and the second area is equipped with valves for opening and closing the cylinders.

5. The interlocking system according to claim 1, characterized in that, The exhaust device includes an axial flow fan, a pneumatic / electric damper, and an air duct.

6. The interlocking system according to claim 1, characterized in that, The control device includes a display screen and a central control room. The display screen is used to display parameter information inside the acetylene warehouse, and the central control room is used to control the gas supply valves and exhaust devices inside the acetylene warehouse.

7. The interlocking system according to claim 1, characterized in that, The interlocking system also includes an explosion-proof device, which is installed on one or more of the detection device, alarm device, exhaust device, and control device.

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