Gas tunnel monitoring and alarming device

Abstract

The utility model belongs to the technical field of tunnel construction monitoring, and particularly relates to a gas tunnel monitoring and alarming device which comprises a monitoring device A. The monitoring device A is fixedly connected to a fixing mechanism B. The monitoring device A comprises a box body which comprises an upper cavity and a lower cavity which are independent from each other. The upper cavity is communicated with an air inlet formed in the box body; a data processor, a storage battery, an oxygen detector and a gas concentration detector are arranged in an inner cavity of the lower cavity; the oxygen detector and the gas concentration detector are respectively communicated with the upper cavity through a gas inlet pipe I and a gas inlet pipe II; a temperature sensor and a switch are arranged on the outer wall of the box body; gas outlets are formed in the oxygen detector and the gas concentration detector; and the data processor is in wired or wireless data connection with an external monitoring platform. Due to the structure, the predictability is improved, the monitoring range is widened, and the use stability is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction monitoring, and relates to a gas tunnel monitoring and alarm device capable of improving predictability, increasing monitoring range and ensuring use stability. Background Art

[0002] my country has built nearly 100 gas tunnels and has formulated relevant construction standards, but gas accidents still occur from time to time during tunnel construction, and the flammable and explosive characteristics of gas can easily cause mass casualties. In actual construction, gas disaster prevention and control management often presents two types of management states: overly conservative "talking about gas" and overly extensive "ignorance and fearlessness". This is mainly due to the rough classification of gas tunnels in the current prevention and control system, and the effects of some prevention and control measures cannot be reflected; at the same time, the various prevention and control measures are poorly targeted and have not been organically combined. The various gas-related data obtained have only been simply recorded and superficially analyzed, and the real effectiveness of the various data has not been brought into play; in addition, the current early warning systems during gas tunnel construction are mostly state evaluation systems, and the early warning systems only respond when disasters occur, and the predictive effect is extremely poor.

[0003] The automatic tunnel gas detection device disclosed in the patent document with Chinese patent announcement number CN219606599U includes a base, a lifting mechanism is provided on the base, a rotating part is provided on the lifting mechanism, a gas detector is also provided on the lifting mechanism, and a first driving mechanism for driving the rotating part to rotate is also provided on the base; when in use, the driving mechanism is used to move in the tunnel, so that the gas detector moves within a certain height and a certain horizontal range to monitor different positions. The automatic tunnel gas detection device is large in size, and only has a single variable monitoring of gas concentration, and has poor predictability. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a gas tunnel monitoring and alarm device that improves predictability, increases monitoring range and ensures stability in use.

[0005] In order to achieve the above object, the utility model provides the following technical solutions:

[0006] The utility model provides a gas tunnel monitoring and alarm device, comprising a monitoring device A, which is fixedly connected to a fixing mechanism B, wherein: the monitoring device A comprises a box body, the box body comprises two independent upper cavities and a lower cavity, the upper cavity is communicated with an air inlet arranged on the box body; a data processor, a storage battery, an oxygen detector and a gas concentration detector are arranged in the inner cavity of the lower cavity; the storage battery, the oxygen detector and the gas concentration detector are all electrically connected to the data processor through a wire, and the oxygen detector and the gas concentration detector are respectively communicated with the upper cavity through an air inlet pipe 1 and an air inlet pipe 2; a temperature sensor and a switch are arranged on the outer wall of the box body, and the temperature sensor and the switch are all electrically connected to the data processor through a wire; an air outlet is arranged on the oxygen detector and the gas concentration detector; the data processor is connected to an external monitoring platform by wired or wireless data.

[0007] To realize real-time alarm, further in the above scheme: an alarm is fixedly provided on the outer wall of the box, and the alarm is electrically connected to the data processor through a wire.

[0008] For the convenience of lighting, further in the above scheme: an LED lamp is fixedly provided on the outer wall of the box, and the LED lamp is electrically connected to the data processor through a wire.

[0009] In order to effectively ensure the stability of the installation of the monitoring equipment, further, in the above scheme: the fixing mechanism B includes a hanging rod, connecting plates fixed at both ends of the hanging rod, a positioning spring integral with it is provided in the middle of the hanging rod, and a positioning button integral with it is fixed at the outer end of the positioning spring, and the positioning button is located in an annular groove, and the annular groove is provided on a sleeve, and the sleeve is located on the top of the box.

[0010] To ensure the safety of the monitoring equipment, further, in the above scheme: the hanging rod is provided with a mounting hole a, the connecting plate is provided with a mounting hole b, and bolts passing through the mounting hole a and the mounting hole b in sequence fix the hanging rod and the connecting plate as a whole;

[0011] The diameter of the mounting hole a is larger than that of the mounting hole b, and the mounting hole a is a strip-shaped hole.

[0012] In order to facilitate fixing the monitoring equipment on the tunnel face, further in the above scheme: positioning and mounting holes are provided on the connecting plate.

[0013] In order to extend the service life of the monitoring equipment and record the alarm matters, further, in the above scheme: the data processor is electrically connected to the output device, the output device includes an alarm, an alarm notepad, a ventilation device and a cooling device, wherein the alarm notepad is located on the data processor, and the ventilation device and the cooling device are arranged on the side wall of the lower cavity of the box body, and the alarm notepad, ventilation device and cooling device are all electrically connected to the data processor through wires.

[0014] The beneficial effects of the utility model are as follows: compared with the prior art, the device is compact and convenient, can be recycled, and can be set in multiple locations on the tunnel face, thereby increasing the monitoring range. The aperture of the mounting hole a set on the suspension rod is larger than that of the mounting hole b, and the mounting hole a is a strip hole. When the device is in use, due to construction vibration, the monitoring device A will exert forces from all directions on the fixing mechanism B, and the forces in all directions are decomposed into directions parallel to the suspension rod 12 and perpendicular to the suspension rod 12, wherein the displacement of the monitoring device A caused by the force parallel to the suspension rod 12 can be released through the reserved space, and the force perpendicular to the suspension rod 12 can be offset by a small swing of the annular groove of the suspension rod 12. In addition, if the rock between the connecting plates 11 is cracked, a lateral displacement space of the connecting plates 11 is reserved, which can ensure that the fixing mechanism B will not be damaged when the rock is cracked, so as to ensure the stability of the use of the monitoring device. Starting from the three elements of gas explosion, the oxygen detector, gas concentration detector and temperature sensor are set for special detection, and real-time monitoring is performed through the system, and the correct response method is provided to the monitoring personnel according to the monitoring data.

[0015] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be described in detail below in conjunction with the accompanying drawings, in which:

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the utility model in a top view;

[0019] Figure 3 This is a control framework diagram of the utility model;

[0020] Figure 4 It is a schematic diagram of the decision tree algorithm of the utility model;

[0021] Figure numerals: A, monitoring equipment; B, fixing mechanism; 1, air inlet pipe 2; 2, air inlet; 3, temperature sensor; 4, alarm; 5, oxygen detector; 6, gas concentration detector; 7, switch; 8, air outlet; 9, battery; 10, LED lamp; 11, connecting plate; 12, hanging rod; 13, sleeve; 14, mounting hole b; 15, bolt; 16, bolt hole; 17, box; 18, air inlet pipe 1; 19, positioning spring; 20, ring groove; 21, positioning button; 22, data processor; 23, data transmission cable; 24, mounting hole a. DETAILED DESCRIPTION

[0022] The following describes the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. The following embodiments and the features in the embodiments can be combined with each other without conflict.

[0023] The accompanying drawings are only used for illustrative purposes and are only schematic diagrams, not physical drawings, and cannot be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; it is understandable to those skilled in the art that some well-known structures and their descriptions in the accompanying drawings may be omitted. In addition, the utility model may repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0024] like Figure 1-4As shown, a gas tunnel monitoring and alarm device described in the utility model includes a monitoring device A, which is fixedly connected to a fixing mechanism B, wherein: the monitoring device A includes a box 17, the box 17 includes two independent upper and lower cavities, the upper cavity is connected to the air inlet 2 arranged on the box 17; a data processor 22, a battery 9, an oxygen detector 5 and a gas concentration detector 6 are arranged in the inner cavity of the lower cavity; the battery 9, the oxygen detector 5 and the gas concentration detector 6 are all electrically connected to the data processor 22 through wires, and the oxygen detector 5 and the gas concentration detector 6 are connected to the upper cavity through an air inlet pipe 1 18 and an air inlet pipe 2 1 respectively; a temperature sensor 3 and a switch 7 are arranged on the outer wall of the box 17, and the temperature sensor 3 and the switch 7 are all electrically connected to the data processor 22 through wires; an air outlet 8 is arranged on the oxygen detector 5 and the gas concentration detector 6; the data processor 22 is connected to the external monitoring platform by wire or wireless data. In this embodiment, a filter screen is installed at the air inlet 2 .

[0025] To realize real-time alarm, further, in the above scheme: an alarm 4 is fixedly provided on the outer wall of the box 17, and the alarm 4 is electrically connected to the data processor 22 through a wire.

[0026] For the convenience of lighting, in the above solution, preferably: an LED lamp 10 is fixedly provided on the outer wall of the box 17, and the LED lamp 10 is electrically connected to the data processor 22 through a wire.

[0027] In order to effectively ensure the stability of the installation of the monitoring equipment, in the above scheme, preferably: the fixing mechanism B includes a hanging rod 12, a connecting plate 11 fixed at both ends of the hanging rod 12, a positioning spring 19 is provided in the middle of the hanging rod 12, and a positioning button 21 is fixed to the outer end of the positioning spring 19, and the positioning button 21 is located in an annular groove 20, and the annular groove 20 is provided on the sleeve 13, and the sleeve 13 is located at the top of the box 17.

[0028] To ensure the safety of the monitoring equipment, in the above scheme, preferably: the hanging rod 12 is provided with a mounting hole a24, the connecting plate 11 is provided with a mounting hole b14, and the bolts 15 passing through the mounting holes a24 and b14 in sequence fix the hanging rod 12 and the connecting plate 11 as a whole;

[0029] The diameter of the mounting hole a24 is larger than that of the mounting hole b14, and the mounting hole a24 is a bar-shaped hole.

[0030] In order to facilitate fixing the monitoring device on the tunnel face, in the above solution, preferably: a positioning installation hole 16 is provided on the connecting plate 11 .

[0031] In order to extend the service life of the monitoring equipment and record the alarm matters, in the above scheme, preferably: the data processor 22 is electrically connected to the output device, and the output device includes an alarm 4, an alarm notepad, a ventilation device and a cooling device, wherein the alarm notepad is located on the data processor 22, and the ventilation device and the cooling device are arranged on the side wall of the lower cavity of the box body 17, and the alarm notepad, the ventilation device and the cooling device are all electrically connected to the data processor 22 through wires.

[0032] The working process of the above structure is as follows: turn on the switch 7, the gas enters the oxygen detector 5 and the gas concentration detector 6 from the air inlet 2, and the oxygen detector 5 and the gas concentration detector 6 respectively detect the oxygen concentration and the gas concentration, the temperature sensor 3 monitors the real-time temperature of the air in the tunnel, the oxygen detector 5, the gas concentration detector 6 and the temperature sensor 3 respectively feed back the three data to the data processor 22, the data processor 22 transmits the monitoring data to the monitoring platform through the data transmission cable 23, the monitoring platform uses the decision tree algorithm to determine the type of alarm content, and sends out the corresponding alarm content through the alarm 4 and records it in the alarm notepad, and reminds the personnel of the correct response method.

[0033] All the above-mentioned components are commercially available products, and the description of program control is provided to help those skilled in the art understand the solution described in the utility model.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. A gas tunnel monitoring and alarm device, comprising a monitoring device (A), wherein the monitoring device (A) is fixedly connected to a fixing mechanism (B), and is characterized in that: The monitoring device (A) comprises a box (17), the box (17) comprising an upper cavity and a lower cavity which are independent of each other, the upper cavity being in communication with an air inlet (2) arranged on the box (17); a data processor (22), a storage battery (9), an oxygen detector (5) and a gas concentration detector (6) are arranged in the inner cavity of the lower cavity; the storage battery (9), the oxygen detector (5) and the gas concentration detector (6) are all electrically connected to the data processor (22) via wires, and the oxygen detector (5) and the gas concentration detector (6) are electrically connected to each other via wires. The oxygen detector (5) and the gas concentration detector (6) are connected to the upper cavity through an air inlet pipe 1 (18) and an air inlet pipe 2 (1) respectively; a temperature sensor (3) and a switch (7) are arranged on the outer wall of the box (17); the temperature sensor (3) and the switch (7) are both electrically connected to a data processor (22) through a wire; an air outlet (8) is arranged on the oxygen detector (5) and the gas concentration detector (6); and the data processor (22) is connected to an external monitoring platform by wire or wireless data.

2. The gas tunnel monitoring and alarm device according to claim 1 is characterized in that: An alarm (4) is fixedly arranged on the outer wall of the box (17), and the alarm (4) is electrically connected to the data processor (22) via a wire.

3. The gas tunnel monitoring and alarm device according to claim 1 or 2, characterized in that: An LED lamp (10) is fixedly arranged on the outer wall of the box (17), and the LED lamp (10) is electrically connected to the data processor (22) via a wire.

4. The gas tunnel monitoring and alarm device according to claim 1 is characterized in that: The fixing mechanism (B) comprises a hanging rod (12), connecting plates (11) fixed at both ends of the hanging rod (12), a positioning spring (19) integral with the hanging rod (12) is arranged in the middle part of the hanging rod (12), a positioning button (21) integral with the hanging rod (12) is fixed at the outer end of the positioning spring (19), the positioning button (21) is located in an annular groove (20), the annular groove (20) is arranged on a sleeve (13), and the sleeve (13) is located at the top of the box body (17).

5. The gas tunnel monitoring and alarm device according to claim 4 is characterized in that: The suspension rod (12) is provided with a mounting hole a (24), and the connecting plate (11) is provided with a mounting hole b (14), and bolts (15) passing through the mounting hole a (24) and the mounting hole b (14) in sequence fix the suspension rod (12) and the connecting plate (11) into one body; The diameter of the mounting hole a (24) is larger than that of the mounting hole b (14), and the mounting hole a (24) is a strip-shaped hole.

6. The gas tunnel monitoring and alarm device according to claim 5 is characterized in that: The connecting plate (11) is provided with a positioning installation hole (16).

7. The gas tunnel monitoring and alarm device according to claim 1 is characterized in that: The data processor (22) is electrically connected to an output device, which includes an alarm (4), an alarm notepad, a ventilation device, and a cooling device, wherein the alarm notepad is located on the data processor (22), and the ventilation device and the cooling device are arranged on the side wall of the lower cavity of the box (17), and the alarm notepad, the ventilation device, and the cooling device are all electrically connected to the data processor (22) through wires.

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