Alarm device for chemical safety management

Abstract

The utility model discloses a kind of alarm devices for chemical safety management, including the fixed plate of fixed connection in the surface of second pipeline, the side of the fixed plate close to first pipeline is fixedly connected with the detection cover made of flexible material, the connection of first pipeline and second pipeline is exposed after the detection cover folding is gathered, the other end of the detection cover is fixedly connected with end plate, the surface of first pipeline is provided with the connecting piece of end plate fixation. The utility model is made of flexible material by setting detection cover, can in mobile end plate, make it when close to fixed plate detection cover folding is gathered, to make first pipeline and second pipeline exposed in turn, to the leakage place emergency repair, by setting connecting piece, end plate is fixed, in normal state make detection cover the connection of first pipeline and second pipeline is gathered and sealed, improve detection sensitivity and prevent gas diffusion to ambient air, to solve the problem of inconvenient disassembly, delay repair time in prior art.

Description

Technical Field

[0001] This application relates to the field of alarm equipment technology, and in particular to an alarm device for chemical safety management. Background Technology

[0002] In chemical production processes, safety management is crucial due to the presence of hazardous factors such as high temperature, high pressure, flammability, explosiveness, and toxicity. Gas leaks may occur at gas pipe joints during chemical production; therefore, gas sensors need to be installed at these pipe joints for detection and alarm purposes.

[0003] A search revealed that Chinese Patent CN209196563U discloses a leakage safety alarm device for chemical production equipment. This device uses a leakage detection cover fitted onto a gas pipe connector, with a gas sensor embedded within it. When the gas pipe connector leaks, the leaking gas accumulates in the detection cover, facilitating detection and improving sensitivity. However, due to the sealed structure of the detection cover, emergency repairs at leaking pipe connections require disassembly. Disassembly necessitates separating the first and second cylindrical covers and keeping them apart, making disassembly inconvenient and delaying repairs. Therefore, this paper proposes an alarm device for chemical safety management to address these issues. Utility Model Content

[0004] The purpose of this invention is to provide an alarm device for chemical safety management to solve the problems mentioned in the background art.

[0005] The embodiments of this application adopt the following technical solutions:

[0006] An alarm device for chemical safety management is used to alarm for gas leakage at the connection between a first pipeline and a second pipeline. It includes a fixing plate fixedly connected to the surface of the second pipeline. A detection cover made of flexible material is fixedly connected to the side of the fixing plate near the first pipeline. When the detection cover is folded up, the connection between the first pipeline and the second pipeline is exposed. An end plate is fixedly connected to the other end of the detection cover. A connector for fixing the end plate is provided on the surface of the first pipeline.

[0007] Preferably, an opening is provided in the middle of one side of the end plate, and the end plate is coaxially sleeved on the surface of the first pipeline through the opening. A connecting protrusion is formed on the surface of the end plate, and a sliding rod is fixedly connected to one side of the connecting protrusion. A fixing protrusion is formed on the surface of the fixing plate, and a sliding hole is provided on the side of the fixing protrusion. The sliding rod is slidably connected to the inner wall of the sliding hole, and a limit block is fixedly connected to the end of the sliding rod away from the connecting protrusion.

[0008] Preferably, a connecting pipe with external threads on its surface is fixedly connected to the side of the end plate near the connector, and the end plate is fixed to the connector through the connecting pipe.

[0009] Preferably, the connector includes a connecting seat that is rotatably connected to the surface of the first pipeline. The connecting seat has a connecting cavity on the side near the connecting pipe. The inner wall of the outer ring of the connecting cavity has an internal thread that mates with the connecting pipe. The connecting pipe is fixed to the connecting seat by the internal thread.

[0010] Preferably, the inner wall of the connecting cavity has two grooves, and the inner wall of the grooves is fixedly connected with a sealing ring.

[0011] Preferably, a curved pipe communicating with the detection cover is fixedly connected to one side of the fixing plate. The curved pipe is at a 90-degree angle, and a gas sensor and an alarm are respectively installed at the top of the curved pipe.

[0012] Preferably, the surface of the detection cover is provided with a plurality of V-shaped grooves evenly distributed along the axial direction.

[0013] The above-described technical solutions adopted in the embodiments of this application can achieve the following beneficial effects:

[0014] In this invention, a detection cover made of flexible material is provided, which can be folded and retracted when the moving end plate is brought closer to the fixed plate, thereby exposing the first and second pipelines for emergency repairs at the leak points. By providing a connector to fix the end plate, the detection cover can seal the connection between the first and second pipelines under normal conditions, improving detection sensitivity and preventing gas from diffusing into the surrounding air. Thus, this alarm device for chemical safety management solves the problems of inconvenient disassembly and delayed repair time in the prior art. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1 Here is a three-dimensional structural schematic diagram of this utility model;

[0017] Figure 2 Here is a schematic diagram of the orthographic structure of the detection cover of this utility model;

[0018] Figure 3 Here is an exploded structural diagram of the end plate and connector of this utility model;

[0019] Figure 4 See: A cross-sectional structural diagram of the connector of this utility model.

[0020] In the diagram: 1. First pipeline; 2. Second pipeline; 3. Fixing plate; 4. Detection cover; 5. End plate; 6. Connector; 601. Connecting seat; 602. Connecting cavity; 603. Sealing ring; 7. Port; 8. Connecting protrusion; 9. Slide rod; 10. Fixing protrusion; 11. Limiting block; 12. Connecting pipe; 13. Bend; 14. Gas sensor; 15. Alarm; 16. V-groove; 17. Flange; 18. Pneumatic actuator valve. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] The technical solutions provided by the various embodiments of this application are described in detail below with reference to the accompanying drawings.

[0023] Please see Figure 1-4 This utility model provides a technical solution for an alarm device for chemical safety management:

[0024] An alarm device for chemical safety management is used to alarm for gas leakage at the connection between a first pipeline 1 and a second pipeline 2. Flanges 17 are welded to the adjacent ends of both the first pipeline 1 and the second pipeline 2, connecting them via the flanges 17. A sealing gasket is provided between the two flanges 17. The device includes a fixing plate 3 fixedly connected to the surface of the second pipeline 2. A detection cover 4 made of flexible material is fixedly connected to the side of the fixing plate 3 closest to the first pipeline 1. This flexible material is a fluororubber composite laminate film, consisting of three layers: a middle layer of fluororubber, an outer layer of polytetrafluoroethylene coating, and an inner layer of conductive carbon fiber mesh. When the detection cover 4 is folded and closed, the connection between the first pipeline 1 and the second pipeline 2 is exposed, i.e., the connection between the two flanges 17 is exposed. An end plate 5 is fixedly connected to the other end of the detection cover 4. A connector 6 for fixing the end plate 5 is provided on the surface of the first pipeline 1. For ease of maintenance, pneumatic actuators 18 are provided on the surfaces of both the first pipeline 1 and the second pipeline 2.

[0025] Specifically, by setting up a detection cover 4 made of flexible material, the detection cover 4 can be folded and retracted when the moving end plate 5 moves closer to the fixed plate 3, thereby exposing the first pipeline 1 and the second pipeline 2 for emergency repair of leaks. By setting up a connector 6 to fix the end plate 5, the detection cover 4 can seal the connection between the first pipeline 1 and the second pipeline 2 under normal conditions, improving detection sensitivity and preventing gas from diffusing into the surrounding air, thus solving the problems of inconvenient disassembly and delayed repair time in the existing technology of alarm devices for chemical safety management.

[0026] An opening 7 is provided in the middle of one side of the end plate 5, and the end plate 5 is coaxially sleeved on the surface of the first pipeline 1 through the opening 7. The diameter of the opening 7 is greater than or equal to the diameter of the flange 17 so that the end plate 5 can pass through the flange 17. A connecting protrusion 8 is formed on the surface of the end plate 5, and a sliding rod 9 is fixedly connected to one side of the connecting protrusion 8. A fixing protrusion 10 is formed on the surface of the fixing plate 3, and a sliding hole is provided on the side of the fixing protrusion 10. The sliding rod 9 is slidably connected to the inner wall of the sliding hole. The sliding rod 9 is used to support the end plate 5 and ensure that the end plate 5 remains coaxial with the first pipeline when it moves, so that the end plate 5 can pass through the flange 17 smoothly. A limiting block 11 is fixedly connected to the end of the sliding rod 9 away from the connecting protrusion 8. The limiting block 11 prevents the sliding rod 9 from detaching from the fixing protrusion 10. The sliding rod 9 and the limiting block 11 are made of POM plastic.

[0027] The end plate 5 is fixedly connected to the side of the connector 6 with a connecting pipe 12 having external threads on its surface, and the end plate 5 is fixed to the connector 6 through the connecting pipe 12.

[0028] The connector 6 includes a connector 601 that is rotatably connected to the surface of the first pipeline 1. A connecting cavity 602 is provided on the side of the connector 601 near the connecting pipe 12. An internal thread that mates with the connecting pipe 12 is provided on the inner wall of the outer ring of the connecting cavity 602. The connecting pipe 12 is fixed to the connector 601 through the internal thread. The rotatable connector 601 is provided to facilitate rotating the connector 601 and connecting it to the connecting pipe 12.

[0029] Two grooves are respectively opened on the inner wall of the inner ring of the connecting cavity 602, and a sealing ring 603 is fixedly connected to the inner wall of the groove. By setting the sealing ring 603, the sealing performance of the detection cover 4 is improved and gas leakage is prevented.

[0030] A bent pipe 13, which communicates with the detection cover 4, is fixedly connected to one side of the fixed plate 3. The bent pipe 13 is at a 90-degree angle. A gas sensor 14 and an alarm 15 are respectively installed at the top of the bent pipe 13. The gas sensor 14 detects the air inside the detection cover 4. The gas sensor 14 is connected to the alarm 15 so that when a gas leak is detected, the alarm 15 will sound an alarm in time. At the same time, a pressure relief component, a gas safety discharge component, and a pressure holding component are also provided on one side of the fixed plate 3. This part has not been improved and will not affect the technical effect of this embodiment, so it will not be described in detail.

[0031] The surface of the detection cover 4 is provided with multiple V-shaped grooves 16 evenly distributed along the axial direction. By providing the V-shaped grooves 16, it is convenient to fold and retract the detection cover 4. The V-shaped grooves 16 can be formed on the surface of the PTFE layer using laser pre-scribing technology. In this embodiment, all components are treated with anti-static agents.

[0032] Working Principle: During the use of this chemical safety management alarm device, when a gas leak occurs at the connection between the first pipeline 1 and the second pipeline 2, the leaking gas enters the detection hood 4. The gas sensor 14 then collects the gas information and transmits the signal to an external controller. The external controller activates the alarm 15 to alert the staff. Simultaneously, the leaking gas is collected in the detection hood 4, effectively preventing the leaked gas from spreading into the air. At this time, the pneumatic actuator valve 18 on the first pipeline 1 and the second pipeline 2 closes, and the external gas safety emission component activates to release the gas inside the detection hood 4. Then, the connecting seat 601 is rotated to separate the connecting pipe 12 from the connecting seat 601. Then, the end plate 5 is moved towards the fixed plate 3, folding the detection hood 4 to expose the first pipeline 1 and the second pipeline 2 for rapid emergency repair of the leak. This solves the problems of inconvenient disassembly and delayed repair time in the existing technology of chemical safety management alarm devices.

[0033] It should also be noted that 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 limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. An alarm device for chemical safety management, used to alarm for gas leakage at the connection between a first pipeline (1) and a second pipeline (2), characterized in that: The device includes a fixing plate (3) fixedly connected to the surface of the second pipeline (2). A detection cover (4) made of flexible material is fixedly connected to the side of the fixing plate (3) near the first pipeline (1). After the detection cover (4) is folded and closed, the connection between the first pipeline (1) and the second pipeline (2) is exposed. An end plate (5) is fixedly connected to the other end of the detection cover (4). A connector (6) for fixing the end plate (5) is provided on the surface of the first pipeline (1).

2. The alarm device for chemical safety management according to claim 1, characterized in that: The end plate (5) has a through-hole (7) in the middle of one side, and the end plate (5) is coaxially sleeved on the surface of the first pipeline (1) through the through-hole (7). A connecting protrusion (8) is formed on the surface of the end plate (5). A sliding rod (9) is fixedly connected to one side of the connecting protrusion (8). A fixing protrusion (10) is formed on the surface of the fixing plate (3). A sliding hole is formed on the side of the fixing protrusion (10). The sliding rod (9) is slidably connected to the inner wall of the sliding hole. A limit block (11) is fixedly connected to the end of the sliding rod (9) away from the connecting protrusion (8).

3. The alarm device for chemical safety management according to claim 1, characterized in that: The end plate (5) is fixedly connected to a connecting pipe (12) with external threads on its surface on the side near the connector (6), and the end plate (5) is fixed to the connector (6) through the connecting pipe (12).

4. The alarm device for chemical safety management according to claim 3, characterized in that: The connector (6) includes a connector (601) rotatably connected to the surface of the first pipeline (1). The connector (601) has a connecting cavity (602) on the side near the connecting pipe (12). The inner wall of the outer ring of the connecting cavity (602) has an internal thread that mates with the connecting pipe (12). The connecting pipe (12) is fixed to the connector (601) by the internal thread.

5. The alarm device for chemical safety management according to claim 4, characterized in that: The inner wall of the connecting cavity (602) has two grooves respectively, and the inner wall of the grooves is fixedly connected with a sealing ring (603).

6. The alarm device for chemical safety management according to claim 1, characterized in that: A bent pipe (13) connected to the detection cover (4) is fixedly connected to one side of the fixed plate (3). The bent pipe (13) is at a 90-degree angle. A gas sensor (14) and an alarm (15) are respectively installed at the top of the bent pipe (13).

7. The alarm device for chemical safety management according to claim 1, characterized in that: The surface of the detection cover (4) is provided with a plurality of V-shaped grooves (16) evenly distributed along the axial direction.

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