Early warning and alarming device for chemical safety management

Abstract

The invention relates to an early warning alarm device for chemical safety management, and belongs to the technical field of chemical installation equipment, the early warning alarm device comprises an installation rack for installing all sensing alarms in an annular array, the installation rack comprises an outer ring, a middle ring and an inner ring which are concentrically arranged and are all of an annular structure, and a radial arrangement, the elastic telescopic arms are slidably mounted on the outer ring and the inner ring, mounting plates are fixed to the ends, extending out of the outer ring, of the telescopic arms, and friction pads in extrusion contact with the pipe wall of the chemical pipeline are fixed to the ends, extending into the inner side of the inner ring, of the telescopic arms; when the inner ring rotates, the plane threads drive the telescopic arms to slide so as to be fixed with the chemical pipeline into a whole. Conductive elements are arranged on the outer ring and the mounting plate; the distances between each pair of conducting elements facing each other are different, and one conducting element of each pair of conducting elements is of an elastic telescopic structure so that the sensing alarm on the corresponding mounting plate can be started. All sensing alarms can be installed at a time, and a plurality of alarms can be flexibly selected to be started.

Description

Technical Field

[0001] This invention relates to the field of chemical safety equipment technology, specifically to an early warning and alarm device for chemical safety management. Background Technology

[0002] As a vital pillar of the national economy, the chemical industry involves numerous hazardous chemicals and complex processes, posing potential safety risks such as fires, explosions, and leaks. Despite increased investment in safety management by chemical companies in recent years, various safety accidents still occur frequently, causing serious casualties, property damage, and environmental pollution. These accidents not only devastate the companies themselves but also negatively impact social stability and sustainable development. Traditional early warning and alarm devices mostly possess only single parameter detection and alarm functions, such as monitoring only flammable gas concentration or equipment temperature. However, safety hazards in chemical production are often the result of multiple interacting factors, and single-function devices cannot comprehensively assess the safety situation. For example, in a process involving the mixing and reaction of multiple hazardous chemicals, it is necessary not only to monitor the leakage of each chemical but also to comprehensively consider factors such as reaction heat and pressure changes. Single-function devices are insufficient to meet the safety early warning needs of such complex scenarios.

[0003] To achieve simultaneous detection and early warning of multiple objects, multiple sensors or alarm elements need to be installed. These elements are mostly purchased individually from the market and installed separately on-site, requiring multiple installation sites and being time-consuming. Furthermore, during detection, it's impossible to flexibly switch between detection objects; each sensor must be manually turned on or off individually, which is prone to accidental activation. This can result in some sensors in the originally configured alarm group not being the ones that need to be activated, leading to detection errors. While existing technologies allow for flexible activation of multiple alarm elements after installation, such as through program control, automatic control is far less reliable than mechanical control in chemical environments. This is why many critical situations still use or have a backup set of mechanical switches. For example, in some chemical plants, critical valves, in addition to electrically controlled valves, must also have a manual valve to maintain reliability even in extreme environments. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide an early warning and alarm device for chemical safety management, so as to solve the problems of low integration of the installation structure of the existing early warning and alarm equipment, which makes it impossible to install quickly and centrally, and lacks a reliable design for mechanical switching control of the detected and warned objects.

[0005] This invention is achieved through the following technical solution:

[0006] A chemical safety management early warning alarm device includes several different types of sensor alarms, and a mounting frame for mounting all the sensor alarms in a ring array. The mounting frame includes an outer ring, a middle ring, and an inner ring, all concentrically arranged in a ring structure, and a telescopic arm that is radially arranged along the outer ring and slidably mounted on the outer ring and the inner ring. The telescopic arm is an elastic telescopic structure. A mounting plate is fixed to one end of the telescopic arm extending out of the outer ring. The mounting plate is used to mount the sensor alarms. A friction pad that presses against the wall of a chemical pipeline is fixed to one end of the telescopic arm extending into the inner ring. The telescopic arm has a planar thread along its length, and the inner ring faces the telescopic arm. One end is also provided with a planar thread. The inner ring is rotatably installed inside the outer ring. When the inner ring rotates, it drives the telescopic arm to slide through the planar thread, so that all the friction pads of the ring array are tightly attached to the chemical pipeline and fixed as one piece. A first conductive element is also installed on the outer side of the outer ring. A second conductive element is provided on the mounting plate opposite to the first conductive element. The spacing between each pair of opposite conductive elements is different. One of the conductive elements in each pair is an elastic telescopic structure, so that when the friction pad is fixed to the chemical pipeline, continued rotation of the middle ring can cause each pair of conductive elements to contact in sequence, thereby activating the sensor alarm on their respective mounting plates.

[0007] Furthermore, the telescopic arm has a rectangular columnar structure, and the upper end face of the outer ring has an installation groove for the middle ring to be rotatably installed. The inner part of the outer ring near the bottom end face is provided with several rectangular sliding grooves, through which the telescopic arm slides.

[0008] Furthermore, the top surface of the inner ring is connected to an operating wheel via several connecting rods, and rotating the operating wheel causes the middle ring to rotate.

[0009] Furthermore, a locking bolt is vertically screwed into the operating wheel, the bottom end of the locking bolt abutting against the fixed end face of the outer ring to fix the middle ring on the outer ring.

[0010] Furthermore, the telescopic arm includes an outer arm and an inner arm. The inner arm is slidably inserted into the outer arm and connected to the outer arm via a pressure-resistant spring. The friction pad is fixed to the end of the inner arm, and the upper surface of the outer arm is provided with the planar thread.

[0011] Furthermore, the top surface of the outer ring has a scale line on the inner side, and the top surface of the inner ring has an arrow mark. When the arrow mark points to the corresponding scale line, it means that the power of several of the sensor alarms is turned on.

[0012] Furthermore, the first conductive element includes a conductive sleeve, a return spring, and a sliding post. Both the conductive sleeve and the sliding post are conductive. The conductive sleeve is fixedly connected to the outer ring in an insulated manner. The sliding post is axially slidably installed inside the conductive sleeve and connected to the return spring to achieve sliding conductive contact. One end of the conductive post extending out of the conductive sleeve is directly opposite the second conductive element.

[0013] Furthermore, the second conductive element and the sliding column each include an insulated mounting column, and an insulated column shell is fixedly mounted on the outside of the conductive sleeve; a conductive core column is axially embedded in all the mounting columns, and when two opposing conductive core columns come into contact, the corresponding sensor alarm is activated.

[0014] Furthermore, all the second conductive elements are exactly the same, but the lengths of the sliding post protruding from the conductive sleeve of all the first conductive elements are different.

[0015] Furthermore, all the first conductive elements are exactly the same, and all the second conductive elements are also exactly the same, but the insulating cylindrical shell of the first conductive element is screwed into the outer ring in the form of a threaded connection so that its length screwed into the outer ring can be adjusted during use.

[0016] The beneficial effects of this invention are as follows:

[0017] This early warning and alarm device for chemical safety management primarily focuses on the installation structure of the sensor alarms. It integrates installation and centralized mechanical control for practical application. Multiple telescopic arms in a ring array allow for the rapid and centralized installation of various sensor alarms or sensor elements in a single setup. After fixing the device to the corresponding components in the chemical workshop, the central ring can be rotated to flexibly switch between different sensor alarm groups. The entire operation relies solely on the drive of a single central ring, making it extremely convenient. It also allows for highly flexible adjustment and selection of the desired detection targets, enabling the activation of different combinations of sensor alarm groups. Furthermore, these early warning and alarm elements in this invention, based on their own remote on / off program control, serve as a backup mechanical control system, providing assurance for the mechanical activation or deactivation of corresponding sensor alarms under certain conditions.

[0018] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0019] Figure 1 This is a top view of a cross-section of the present invention;

[0020] Figure 2 This is a radial sectional view of the outer ring and inner ring mating structure of the present invention;

[0021] Figure 3 This is a partial structural schematic diagram of the telescopic arm of the present invention;

[0022] Figure 4 for Figure 1 Enlarged view of the structure shown within the elliptical region;

[0023] Figure 5 This is a top view of a cross-section of the first conductive element of the present invention when it is threaded onto the outer ring.

[0024] Figure 6 When the first conductive element is threaded onto the outer ring via an insulating cylindrical shell... Figure 2 Another structural diagram of the structure shown.

[0025] In the diagram: Outer ring 1, Middle ring 2, Inner ring 3, Telescopic arm 4, Arrow marker 5, Mounting plate 6, Friction pad 7, Chemical pipeline 8, Connecting rod 9, Operating wheel 10, Locking bolt 11, Rectangular slide 12, Outer arm 13, Return spring 14, Inner arm 15, Second conductive element 16, First conductive element 17, Sliding column 1701, Conductive sleeve 1702, Pressure-resistant spring 1703, Mounting column 18, Conductive core column 19, Insulating column shell 20, Protrusion 21, Threaded hole 2101. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] Please see Figure 1-2This invention provides a technical solution: a warning and alarm device for chemical safety management, comprising several different types of sensors and alarms, such as commonly used combustible gas sensors, smoke sensors, temperature sensors, pressure sensors, etc., and existing integrated alarm systems. The difference is that in this embodiment, these alarm sensors or alarms are integrated into one device, facilitating simultaneous fixed installation and flexible selection of alarm target types. Specifically, it also includes a mounting frame for mounting all sensors and alarms in a ring array. This mounting frame includes an outer ring 1, a middle ring 2, and an inner ring 3, all concentrically arranged in a ring structure, and a telescopic arm 4 radially arranged along the outer ring 1 and simultaneously slidably mounted on the outer ring 1 and inner ring 3. The telescopic arm 4 passes through both the outer ring 1 and inner ring 3 during installation, and is required to be an elastic telescopic structure, for example, capable of telescopic extension and retraction along its length, ensuring that all telescopic arms 4 have a certain compressibility when in contact with chemical pipelines 8 or other installed cylindrical components. To install the aforementioned series of sensor alarms, a mounting plate 6 is fixed to one end of the telescopic arm 4 extending from the outer ring 1. The mounting plate 6 can be a fan-shaped plate. Specifically, to install the sensor alarms, a friction pad 7 is fixed to one end of the telescopic arm 4 extending into the inner ring 3, which presses against the wall of the chemical pipeline 8. In this embodiment, the telescopic arm 4 has a planar thread along its length, and the inner ring 3 also has a planar thread at one end facing the telescopic arm 4, forming a planar thread mating structure. The inner ring 3 is rotatably mounted inside the outer ring 1, allowing the inner ring 3 to rotate, driving the telescopic arm 4 to slide via the planar thread. This means all telescopic arms 4 move synchronously, ensuring all friction pads 7 in the annular array are tightly pressed against the chemical pipeline 8. This, in turn, clamps the chemical pipeline 8, fixing it as a single unit to the cylindrical components, such as the chemical pipeline 8, achieving flexible installation of the early warning alarm device. Installation carriers can be found in many locations within a chemical plant workshop. Furthermore, during manufacturing, if... Figure 1 The outer ring 1 is further equipped with a first conductive element 17, and the mounting plate 6 is provided with a second conductive element 16 directly opposite the first conductive element 17. Initially, the two are not in contact. The spacing D between each pair of directly opposite conductive elements is different. One of the conductive elements in each pair is an elastically expandable structure, meaning it can be elastically compressed. This allows the middle ring 2 to continue rotating even after the friction pad 7 and the chemical pipeline 8 are fixed together, thus ensuring that each pair of conductive elements contacts sequentially. The larger the D, the later the contact, meaning the later the power is applied. This causes the corresponding sensors on the mounting plate 6 to activate one by one. By controlling the number of rotations of the middle ring 2, different types of sensors can be activated, allowing for the activation of different sensors for detection in different situations.

[0030] In this embodiment, as Figures 2-3The telescopic arm 4 is a rectangular columnar structure. The upper end face of the outer ring 1 has an annular mounting groove for the rotatable installation of the middle ring 2. The inner surface of the outer ring 1 near the bottom end face has several rectangular sliding grooves 12. The telescopic arm 4 slides through the rectangular sliding grooves 12 to achieve sliding installation. To rotate the middle ring 2, an operating wheel 10 is connected to the top end face of the inner ring 3 by several connecting rods 9. Rotating the operating wheel 10 causes the middle ring 2 to rotate. In addition, to fix the middle ring 2 after it has rotated into place, a locking bolt 11 can be vertically screwed into the operating wheel 10. The bottom end of the locking bolt 11 abuts against the fixed end face of the outer ring 1, fixing the middle ring 2 to the outer ring 1 and thus preventing the middle ring 2 from rotating accidentally.

[0031] In this embodiment, as Figure 3 As shown, specifically, the telescopic arm 4 includes an outer arm 13 and an inner arm 15. The inner arm 15 is slidably inserted into the outer arm 13 and connected to the outer arm 13 through a pressure-resistant spring 1703. The friction pad 7 is fixed to the end of the inner arm 15. The upper surface of the outer arm 13 is provided with a planar thread, which can achieve elastic extension and retraction in a simple and reliable manner.

[0032] To visually determine which types of sensor alarms are activated, such as Figure 1 As shown, there is a scale line on the inner side of the top surface of the outer ring 1, and an arrow mark 5 on the top surface of the inner ring 3. When the arrow mark 5 points to the corresponding scale line, the position of the middle ring 2 indicates that the power of several of the sensor alarms is turned on.

[0033] In this embodiment, as Figure 4 The first conductive element 17 includes a conductive sleeve 1702, a return spring 14, and a sliding post 1701. Both the conductive sleeve 1702 and the sliding post 1701 are conductive, forming a combined conductor. The conductive sleeve 1702 is fixedly and insulatedly connected to the outer ring 1 to prevent the outer ring 1 from conducting electricity. The sliding post 1701 is axially slidably installed inside the conductive sleeve 1702 and connected to the return spring 14 to achieve sliding conductive contact. One end of the conductive post extending out of the conductive sleeve 1702 faces the second conductive element 16. Both the second conductive element 16 and the conductive sleeve 1702 are connected to a power supply circuit. This power supply circuit corresponds to the power supply of a sensor alarm. Therefore, when the contact is made conductive, the corresponding sensor alarm will be powered on and turned on.

[0034] As a specific implementation structure, such as Figure 4As shown, the second conductive element 16 and the sliding post 1701 each include an insulated mounting post 18. The sliding post 1701 and the mounting post 18 are designed to adapt to the required length. During installation, an insulating post shell 20 is fixedly installed on the outside of the conductive sleeve 1702 to prevent accidental contact and leakage. At the same time, a conductive core post 19 is axially embedded in all the mounting posts 18. That is, the power supply circuit is actually connected through the contact of the conductive core post 19. In other words, when two conductive core posts 19 facing each other come into contact, the corresponding sensor alarm will be activated.

[0035] In this embodiment, as Figure 1 As shown, all the second conductive elements 16 are exactly the same, while the lengths of the sliding post 1701 of all the first conductive elements 17 protruding from the conductive sleeve 1702 are different, resulting in different D values. Thus, the sensor alarm can be activated one by one along the circumference of the ring array.

[0036] As a preferred embodiment, in practical applications, the types of sensor alarms required for different occasions often vary. To maximize flexibility in detecting and alarming the desired target, it is possible to make all the first conductive elements 17 identical, such as... Figure 5 As shown, all the second conductive elements 16 are made exactly the same. However, the insulating shell 20 of the first conductive element 17 must be screwed into the outer ring 1 in a threaded connection. This allows the length or depth of each insulating shell 20 screwed into the outer ring 1 to change the aforementioned D value, enabling the combined activation of any number of sensors in all the sensor alarms. To increase the length of the insulating shell and facilitate the expansion of the distribution range of the aforementioned D value, the bottom end of the outer ring 1 can be machined as follows. Figure 6 The diagram shows several protrusions 21, with corresponding threaded holes 2101 machined inside each protrusion 21.

[0037] In the above description of the present invention, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is conventionally placed during use. These terms are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0038] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A chemical safety management early warning alarm device, comprising several different types of sensor alarms, characterized in that: It also includes a mounting bracket for mounting all the sensor alarms in a ring array. The mounting bracket includes an outer ring (1), a middle ring (2) and an inner ring (3) arranged concentrically, each with a ring structure. It also includes a telescopic arm (4) that is radially arranged along the outer ring (1) and slidably mounted on the outer ring (1) and the inner ring (3). The telescopic arm (4) is an elastic telescopic structure. One end of the telescopic arm (4) extending out of the outer ring (1) is fixed with a mounting plate (6). The mounting plate (6) is used to mount the sensor alarms. One end of the telescopic arm (4) extending into the inner side of the inner ring (3) is fixed with a friction pad (7) that is in contact with the wall of the chemical pipeline (8). The telescopic arm (4) has a planar thread along its length. The inner ring (3) also has a planar thread at one end facing the telescopic arm (4). The inner ring (3) is rotatably mounted inside the outer ring (1). When the inner ring (3) rotates, the telescopic arm (4) is driven to slide through the planar thread so that all the friction pads (7) of the ring array are tightly attached to the chemical pipeline (8) and fixed as one piece. A first conductive element (17) is also installed on the outer side of the outer ring (1), and a second conductive element (16) is provided on the mounting plate (6) opposite to the first conductive element (17). The spacing between each pair of conductive elements is different. One of the conductive elements in each pair is an elastic telescopic structure so that when the friction pad (7) is fixed to the chemical pipeline (8), the continued rotation of the middle ring (2) can make each pair of conductive elements contact in sequence and turn on the sensor alarm on their respective mounting plate (6).

2. The early warning alarm device for chemical safety management according to claim 1, characterized in that: The telescopic arm (4) is a rectangular columnar structure. The upper end face of the outer ring (1) has an installation groove for the middle ring (2) to be rotatably installed. The inner side of the outer ring (1) near the bottom end face is provided with several rectangular sliding grooves (12). The telescopic arm (4) slides through the rectangular sliding grooves (12).

3. The early warning alarm device for chemical safety management according to claim 2, characterized in that: The top surface of the inner ring (3) is connected to an operating wheel (10) by several connecting rods (9). Rotating the operating wheel (10) causes the middle ring (2) to rotate.

4. The early warning alarm device for chemical safety management according to claim 3, characterized in that: A locking bolt (11) is screwed vertically into the operating wheel (10), the bottom end of the locking bolt (11) abutting against the fixed end face of the outer ring (1) to fix the middle ring (2) on the outer ring (1).

5. The early warning alarm device for chemical safety management according to claim 1, characterized in that: The telescopic arm (4) includes an outer arm (13) and an inner arm (15). The inner arm (15) is slidably inserted into the outer arm (13) and connected to the outer arm (13) by a pressure-resistant spring (1703). The friction pad (7) is fixed to the end of the inner arm (15). The upper surface of the outer arm (13) is provided with the planar thread.

6. The early warning alarm device for chemical safety management according to claim 1, characterized in that: The outer ring (1) has a scale line on the inner side of its top surface, and the inner ring (3) has an arrow mark (5) on its top surface. When the arrow mark (5) points to the corresponding scale line, it means that the power supply of several of the sensor alarms is turned on.

7. The early warning alarm device for chemical safety management according to claim 1, characterized in that: The first conductive element (17) includes a conductive sleeve (1702), a return spring (14), and a sliding post (1701). Both the conductive sleeve (1702) and the sliding post (1701) are conductive. The conductive sleeve (1702) is fixedly connected to the outer ring (1) in an insulated manner. The sliding post (1701) is axially slidably installed inside the conductive sleeve (1702) and connected to the return spring (14) to achieve sliding conductive contact. One end of the conductive post extending out of the conductive sleeve (1702) is directly opposite the second conductive element (16).

8. The early warning alarm device for chemical safety management according to claim 7, characterized in that: The second conductive element (16) and the sliding column (1701) each include an insulated mounting column (18), and an insulated column shell (20) is fixedly mounted on the outside of the conductive sleeve (1702); a conductive core column (19) is axially embedded in all the mounting columns (18), and when two conductive core columns (19) facing each other come into contact, the corresponding sensor alarm is activated.

9. The early warning alarm device for chemical safety management according to claim 7, characterized in that: All the second conductive elements (16) are exactly the same, but the lengths of the sliding post (1701) of all the first conductive elements (17) protruding from the conductive sleeve (1702) are different.

10. The early warning alarm device for chemical safety management according to claim 8, characterized in that: All first conductive elements (17) are exactly the same, and all second conductive elements (16) are also exactly the same, but the insulating shell (20) of the first conductive element (17) is screwed into the outer ring (1) in the form of a threaded connection so that the length of the insulating shell (20) screwed into the outer ring (1) can be adjusted during use.

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