Pipeline gas monitoring and alarming device

Abstract

The utility model relates to the technical field of mine pipeline gas monitoring, and discloses a pipeline gas monitoring alarm device. The pipeline gas monitoring and alarming device comprises a supporting frame, a shell is movably installed above the supporting frame, a receiving and transmitting antenna is fixedly installed above the shell, a wireless serial port receiving and transmitting module and a logic controller are fixedly installed on the front side of the top face of the supporting frame, and the logic controller is connected with the wireless serial port receiving and transmitting module through the wireless serial port receiving and transmitting module. The devices are not connected through a signal transmission cable, and in the installation process, the upper end of the fixing bolt exerts certain pressure on the protection pad by adjusting the tightness of the fixing bolt, so that the relative static friction force between the protection pad and the gas pipeline is increased, and the relative position between the supporting frame and the gas pipeline is limited; and after the installation is completed, the storage battery is connected to a power supply line in the mine through the cable, so that the step of applying a signal transmission cable connecting device is omitted, and the installation operation is quicker.

Description

Technical Field

[0001] The utility model relates to the technical field of mine pipeline gas monitoring, in particular to a pipeline gas monitoring alarm device. Background Art

[0002] The main component of gas is alkane, of which methane accounts for the vast majority. It does not support combustion and cannot maintain breathing. When it reaches a certain concentration, it can cause people to suffocate due to lack of oxygen, and can cause combustion or explosion, directly threatening the lives of miners. Therefore, in the mining area, whether in the mining area or around the gas pipeline, gas detection alarms are installed to monitor the gas concentration in real time. Once the concentration exceeds the standard, an alarm will be sounded immediately to prevent accidents. Generally speaking, since the density of gas is only 0.554 of that of air, gas alarms are generally installed at high places.

[0003] The existing referenceable Chinese utility model patent has a publication number of CN209655052U, which discloses a pipeline gas monitoring and alarm device to solve the shortcoming of the prior art that it is difficult to identify the leakage location. The device comprises a bracket, a pipeline and a top cover. Connecting rings are respectively integrally provided at both ends of the bracket, and a notch is provided on the side of the connecting ring away from the bracket. The connecting ring is sleeved on the upper part of the pipeline. A horizontal connecting frame is integrally provided on the top of the bracket, and a top cover is integrally provided on the other end of the connecting frame. The top cover is an arc-shaped structure with a high middle part and a low edge, and the width of the top cover is greater than the diameter of the pipeline. A mounting frame is integrally provided on the lower side of the top cover, and a gas sensor is installed on the upper part of the mounting frame. The utility model has a simple structure and is easy to load and unload. Alarm devices are respectively provided on the upper side of each section of the pipeline, and the top cover can play a gathering role. The gas sensor can timely monitor gas leakage, and the alarm is timely and the alarm position is clear.

[0004] The mine gas monitoring and alarm device is installed on the mine gas loose pipe. In order to achieve remote monitoring effect, the monitoring data is mostly transmitted by wired transmission. This method requires the use of cables to connect the monitoring device, which is costly and has cumbersome installation steps. When the fixed detection device is connected to the power supply, it is also necessary to connect and fix the signal transmission cable. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a pipeline gas monitoring alarm device, which has the advantages of reducing signal transmission costs and being easy to install, thereby solving the above-mentioned technical problems.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pipeline gas monitoring and alarm device, comprising: a support frame, a shell is movably installed on the top of the support frame, a transceiver antenna is fixedly installed on the top of the shell, a wireless serial port transceiver module and a logic controller are fixedly installed on the front side of the top of the support frame, a methane sensor is fixedly installed on the top of the support frame, a limit tube is fixedly installed on the top of the methane sensor, a fixing frame is fixedly installed inside the limit tube, a drive motor is inserted into the inside of the fixing frame, a fan blade is fixedly installed on the outside of the rotating shaft of the drive motor, a battery is fixedly installed on the rear side of the top surface of the support frame, a connecting ring is fixedly installed on the bottom of the support frame, a protective pad is fixedly installed on the inner side of the connecting ring, a fixing ring is movably installed below the connecting ring, and connecting bolts and fixing bolts are inserted into the bottom of the fixing ring; the support frame can support the shell.

[0009] As a preferred technical solution of the utility model, the shell is movably connected to the support frame by screws, the lower end of the transceiver antenna vertically penetrates the shell and is connected to the wireless serial port transceiver module, the wireless serial port transceiver module is electrically connected to the logic controller, and the logic controller is electrically connected to the methane sensor; the transceiver antenna can facilitate signal transmission.

[0010] As a preferred technical solution of the utility model, an open hole structure matching the methane sensor is arranged at the center of the support frame, the limiting tube vertically penetrates the outer shell, and the fixing frame is fixedly installed on the top of the limiting tube; the limiting tube can limit the air flow direction.

[0011] As the preferred technical solution of the utility model, the driving motor is fixedly connected with the limiting tube through a fixing frame, and the fan blades are installed in a ring shape on the outside of the driving motor shaft at equal angles with the axis of the driving motor shaft as a reference; the driving motor can drive the fan blades to rotate.

[0012] As an optimal technical solution of the utility model, a protective pad is also fixedly installed on the inner side of the fixing ring, and the connecting bolts are symmetrically installed on the left and right sides of the fixing ring front and back and left and right with the center of the fixing ring as the reference; the fixing ring can fix the support frame.

[0013] As the preferred technical solution of the utility model, the connecting ring is symmetrically installed on the front and rear sides of the bottom surface of the support frame with the center of the support frame as the reference, and the connecting bolt vertically penetrates the fixing ring and the connecting ring from bottom to top; the connecting bolt can facilitate the connection between the fixing ring and the connecting ring.

[0014] As the preferred technical solution of the utility model, the fixing bolt is installed at the center of the bottom surface of the fixing ring through a threaded structure, and the fixing bolt vertically penetrates the fixing ring from the bottom of the fixing ring, and the top of the fixing bolt contacts the bottom surface of the protective pad; the fixing bolt can increase the relative pressure between the protective pad and the pipeline.

[0015] Compared with the prior art, the utility model provides a pipeline gas monitoring alarm device, which has the following beneficial effects:

[0016] 1. The utility model is provided with a methane sensor, which can detect whether there is methane in the air flowing through it. The detection data of the methane sensor is transmitted to the logic controller in real time. The logic controller performs logical operations on the detection data of the methane sensor and controls the signal sent by the wireless serial port transceiver module according to the operation result. The wireless serial port transceiver module can send or receive signals through the transceiver antenna, so that the alarm devices installed equidistantly form a wireless series connection. When a monitoring alarm device at a certain place detects that the air contains methane components, it can transmit the signal to the adjacent detection alarm device, and transmit the alarm signal to the surface after multi-stage transmission. This method does not use wired connection, can ensure the signal transmission speed while ensuring the signal strength, and also reduces the signal transmission cost.

[0017] 2. The utility model sets a wireless serial port transceiver module so that the devices are not connected through signal transmission cables. During the installation process, the support frame is placed above the gas pipe through the connecting ring, the fixing ring and the connecting ring are connected by connecting bolts, and the tightness of the fixing bolts is adjusted so that the upper end of the fixing bolts applies a certain pressure to the protective pad to increase the relative static friction between the protective pad and the gas pipe, thereby preventing the device from rotating with the axis of the gas pipe as a reference, thereby limiting the relative position between the support frame and the gas pipe. After the installation is completed, the battery can be connected to the power supply line in the mine through a cable. This method omits the step of using a signal transmission cable connection device, making the installation operation faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the connection structure between the support frame and the housing of the utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the support frame and the limiting pipe of the utility model;

[0021] Figure 4 This is a schematic diagram of the installation structure of the fixing ring and the connecting ring of the utility model;

[0022] Among them: 1. Support frame; 11. Shell; 12. Transceiver antenna; 13. Wireless serial port transceiver module; 14. Logic controller; 15. Methane sensor; 16. Limiting tube; 17. Fixed frame; 18. Drive motor; 19. Fan blade; 110. Battery; 111. Connecting ring; 112. Protective pad; 113. Fixed ring; 114. Connecting bolt; 115. Fixing bolt. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0024] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] See also Figure 1 - Figure 4In this embodiment, a pipeline gas monitoring and alarm device includes: a support frame 1, a shell 11 is movably installed on the top of the support frame 1, a transceiver antenna 12 is fixedly installed on the top of the shell 11, a wireless serial port transceiver module 13 and a logic controller 14 are fixedly installed on the front side of the top of the support frame 1, a methane sensor 15 is fixedly installed on the top of the support frame 1, a limit tube 16 is fixedly installed on the top of the methane sensor 15, a fixing frame 17 is fixedly installed inside the limit tube 16, a driving motor 18 is inserted inside the fixing frame 17, a fan blade 19 is fixedly installed outside the rotating shaft of the driving motor 18, a battery 110 is fixedly installed on the rear side of the top surface of the support frame 1, a connecting ring 111 is fixedly installed below the support frame 1, a protective pad 112 is fixedly installed on the inner side of the connecting ring 111, a fixing ring 113 is movably installed below the connecting ring 111, and a connecting bolt 114 and a fixing bolt 115 are inserted below the fixing ring 113.

[0027] The outer shell 11 is movably connected to the support frame 1 through screws, the lower end of the transceiver antenna 12 vertically penetrates the outer shell 11 and is connected to the wireless serial port transceiver module 13, the wireless serial port transceiver module 13 and the logic controller 14 are electrically connected, and the logic controller 14 and the methane sensor 15 are electrically connected.

[0028] An opening structure matching the methane sensor 15 is provided at the center of the support frame 1 , a limiting tube 16 vertically penetrates the housing 11 , and a fixing frame 17 is fixedly installed on the top of the limiting tube 16 .

[0029] The driving motor 18 is fixedly connected to the limiting tube 16 via the fixing frame 17 , and the fan blades 19 are installed in a ring shape at equal angles on the outside of the rotating shaft of the driving motor 18 with the axis of the rotating shaft of the driving motor 18 as a reference.

[0030] A protection pad 112 is also fixedly mounted on the inner side of the fixing ring 113 , and the connecting bolts 114 are symmetrically mounted on the left and right sides of the fixing ring 113 with the center of the fixing ring 113 as a reference.

[0031] The connecting ring 111 is symmetrically installed on the front and rear sides of the bottom surface of the support frame 1 with the center of the support frame 1 as the reference. The connecting bolt 114 vertically penetrates the fixing ring 113 from bottom to top and is connected to the connecting ring 111 .

[0032] The fixing bolt 115 is installed at the center of the bottom surface of the fixing ring 113 through a threaded structure, and the fixing bolt 115 vertically penetrates the fixing ring 113 from the bottom of the fixing ring 113 , and the top end of the fixing bolt 115 contacts the bottom surface of the protection pad 112 .

[0033] Specifically, the support frame 1 can support the shell 11, the shell 11 can protect the logic controller 14, the transceiver antenna 12 can facilitate signal transmission, the model of the wireless serial port transceiver module 13 is RS232-LORA, the wireless serial port transceiver module 13 can send signals through the transceiver antenna 12, the model of the logic controller 14 is FX3U-4AD, the model of the methane sensor 15 is FS01201, the methane sensor 15 can detect whether there is methane in the air, the limit tube 16 can limit the air flow direction, and the fixing frame 17 can The drive motor 18 can be fixed, the drive motor 18 can drive the fan blades 19 to rotate, the fan blades 19 can generate an airflow blowing toward the inside of the limiting tube 16, the battery 110 can power the drive motor 18, the connecting ring 111 can limit the relative position between the support frame 1 and the pipeline, the protection pad 112 can protect the pipeline, the fixing ring 113 can fix the support frame 1, the connecting bolts 114 can facilitate the connection between the fixing ring 113 and the connecting ring 111, and the fixing bolts 115 can increase the relative pressure between the protection pad 112 and the pipeline.

[0034] When in use, due to the setting of the wireless serial port transceiver module 13, the devices are not connected through signal transmission cables. During the installation process, the support frame 1 is placed above the gas pipe through the connecting ring 111, and the fixing ring 113 and the connecting ring 111 are connected through the connecting bolt 114. The tightness of the fixing bolt 115 is adjusted so that the upper end of the fixing bolt 115 applies a certain pressure to the protective pad 112 to increase the relative static friction between the protective pad 112 and the gas pipe, so as to prevent the device from rotating with the axis of the gas pipe as the reference, thereby limiting the relative position between the support frame 1 and the gas pipe. After the installation is completed, the battery 110 can be connected to the power supply line in the mine through a cable. This method omits the step of using a signal transmission cable to connect the device, making the installation operation faster. The methane sensor 15 can detect whether there is methane in the air flowing through. By driving the electric The machine 18 drives the fan blades 19 to rotate, so that the gas at the top of the tunnel enters the limit tube 16, and the gas will flow through the methane sensor 15, and then be discharged from the bottom of the support frame 1 through the opening in the center of the support frame 1. The detection data of the methane sensor 15 is transmitted to the logic controller 14 in real time. The logic controller 14 will perform logical operations on the detection data of the methane sensor 15, and control the signal sent by the wireless serial port transceiver module 13 according to the operation results. The wireless serial port transceiver module 13 can send or receive signals through the transceiver antenna 12, so that the alarm devices installed at equal distances form a wireless series connection. When a monitoring alarm device at a certain location detects that the air contains methane components, it can transmit the signal to the adjacent detection alarm device, and transmit the alarm signal to the surface after multi-stage transmission. This method does not use wired connection, can ensure signal transmission speed while ensuring signal strength, and also reduces signal transmission costs.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipeline gas monitoring and alarm device, characterized in that: include: A support frame (1), a housing (11) is movably mounted above the support frame (1), a transceiver antenna (12) is fixedly mounted above the housing (11), a wireless serial port transceiver module (13) and a logic controller (14) are fixedly mounted on the front side of the top of the support frame (1), a methane sensor (15) is fixedly mounted above the support frame (1), a limit tube (16) is fixedly mounted above the methane sensor (15), a fixing frame (17) is fixedly mounted inside the limit tube (16), and the fixing frame (17) is fixedly mounted inside the fixing frame (17). A driving motor (18) is inserted and installed in the support frame (1); a fan blade (19) is fixedly installed on the outer side of the rotating shaft of the driving motor (18); a storage battery (110) is fixedly installed on the rear side of the top surface of the support frame (1); a connecting ring (111) is fixedly installed below the support frame (1); a protective pad (112) is fixedly installed on the inner side of the connecting ring (111); a fixing ring (113) is movably installed below the connecting ring (111); and a connecting bolt (114) and a fixing bolt (115) are inserted and installed below the fixing ring (113).

2. A pipeline gas monitoring and alarm device according to claim 1, characterized in that: The housing (11) is movably connected to the support frame (1) by means of screws; the lower end of the transceiver antenna (12) vertically penetrates the housing (11) and is connected to the wireless serial port transceiver module (13); the wireless serial port transceiver module (13) is electrically connected to the logic controller (14); and the logic controller (14) is electrically connected to the methane sensor (15).

3. A pipeline gas monitoring and alarm device according to claim 1, characterized in that: An opening structure matching the methane sensor (15) is arranged at the center of the support frame (1), the limiting tube (16) vertically penetrates the housing (11), and the fixing frame (17) is fixedly mounted on the top of the limiting tube (16).

4. A pipeline gas monitoring and alarm device according to claim 1, characterized in that: The drive motor (18) is fixedly connected to the limit tube (16) via a fixing frame (17), and the fan blades (19) are annularly mounted on the outside of the drive motor (18) shaft at equal angles with the axis of the drive motor (18) shaft as a reference.

5. A pipeline gas monitoring and alarm device according to claim 1, characterized in that: A protection pad (112) is also fixedly mounted on the inner side of the fixing ring (113), and the connecting bolts (114) are symmetrically mounted on the left and right sides of the fixing ring (113) with the center of the fixing ring (113) as a reference.

6. A pipeline gas monitoring and alarm device according to claim 1, characterized in that: The connecting ring (111) is symmetrically mounted on the front and rear sides of the bottom surface of the support frame (1) with the center of the support frame (1) as a reference, and the connecting bolt (114) vertically penetrates the fixing ring (113) from bottom to top and is connected to the connecting ring (111).

7. A pipeline gas monitoring and alarm device according to claim 2, characterized in that: The fixing bolt (115) is installed at the center of the bottom surface of the fixing ring (113) through a threaded structure, and the fixing bolt (115) vertically penetrates the fixing ring (113) from the bottom of the fixing ring (113), and the top end of the fixing bolt (115) contacts the bottom surface of the protection pad (112).

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