Gas monitoring device

Abstract

The utility model relates to the technical field of gas detection, and discloses a device for monitoring gas, which comprises a box body, one side of the box body is provided with a via hole, the other side of the box body is provided with a sleeve, and the box body can be arranged on a drill rod of a drilling tool through the via hole and the sleeve; a drilling source detection assembly is arranged in the box body, and a gas sensor, an audible and visual alarm and a negative pressure fan are mounted at the outer top of the box body; the drilling source detection assembly is connected to the end part of the sleeve; the gas sensor is fixedly arranged in the middle of the top end of the box body, and the gas sensor is provided with a gas inlet channel connected with the drilling source detection assembly; and the negative pressure fan is fixedly arranged at the rear part of the top end of the box body and is connected with the inner cavity of the gas sensor. The gas monitoring device can be installed on a drill rod of a drilling tool. The drill rod penetrates through the box body and the sleeve to normally rotate for underground excavation operation; and gas at the drilling hole sequentially passes through the sleeve and the drilling source detection assembly under the action of the negative pressure fan and then enters the gas sensor, so that the gas concentration at the drilling hole is monitored in real time.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection, and particularly relates to a device for monitoring gas. Background Art

[0002] In flammable and explosive environments such as underground tunneling operation spaces, the monitoring of gas is extremely important. The existing gas monitoring technologies mainly rely on fixed or portable gas detectors. Most of these detectors detect the gas concentration in the environment through electrochemical sensors or infrared sensors. These devices are usually installed in key areas of the mine or carried by workers to monitor the gas concentration in real time. When the detected gas concentration exceeds the safety threshold, the monitoring device will trigger an audible and visual alarm to warn workers and take corresponding safety measures.

[0003] Although the existing gas monitoring technologies can achieve real-time monitoring of gas, due to the fact that traditional gas detectors are usually fixedly installed or need to be carried manually, to a certain extent, this limits their monitoring range and the gas concentration at the construction site cannot be accurately detected. Content of the Utility Model

[0004] To solve the above problems, the utility model provides a device for monitoring gas.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A device for monitoring gas, which includes a box body. One side of the box body is provided with a through hole, and the other side is installed with a sleeve. The box body can be installed on the drill pipe of a drill through the through hole and the sleeve; a drill source detection component is arranged inside the box body, and a gas sensor, an audible and visual alarm and a negative pressure fan are installed on its outer top; the drill source detection component is fixedly arranged in the inner cavity of the box body and is connected to the end of the sleeve; the gas sensor is fixedly arranged in the middle of the top of the box body, and the gas sensor is provided with an air inlet channel connected to the drill source detection component; the negative pressure fan is fixedly arranged at the rear of the top of the box body and is connected to the inner cavity of the gas sensor.

[0007] Further, the gas sensor is internally provided with a ZigBee transmission module and an optical fiber transmission module, and it is communicatively connected to the audible and visual alarm through the ZigBee transmission module and is communicatively connected to the ground monitoring host through the optical fiber transmission module.

[0008] Further, the drill source detection component includes a detection box, a first air inlet channel and a filter layer; the detection box is fixedly installed in the inner cavity of the box body and is located at the end of the sleeve. The bottom end of the detection box is open, and the top is provided with a first air inlet channel communicated with the air inlet channel of the gas sensor; a filter layer is arranged at the bottom of the first air inlet channel.

[0009] Further, a cleaning component capable of cleaning the filter layer is also provided inside the detection box. The cleaning component includes a driving ring rotatably installed on the inner wall of the detection box and coaxially arranged with the sleeve. The driving ring can be sleeved on the drill pipe of the drill tool. One side of the driving disc is connected to the cleaning frame through a connecting rod. The cleaning frame rotates through the driving ring, and cleaning strips capable of contacting the filter layer are installed on the cleaning frame.

[0010] Further, an external detection component is also installed outside the box body. The external detection component includes an extension pipe communicated with the air inlet channel of the gas sensor, a universal metal hose installed at the end of the extension pipe, and a support component installed on the outer wall of the box body to support the extension pipe.

[0011] Further, the support component includes a slide rail installed on the outer wall of the box body, a slider slidably installed on the slide rail, a first support rod with one end hinged to the slider, a second support rod telescopically installed inside the first support rod, and a fastening buckle fixed to the extension pipe at the end of the second support rod.

[0012] Further, a slag storage box is communicated with the bottom of the box body, and a slag discharge port is formed on one side of the slag storage box.

[0013] The beneficial effects of the present utility model are as follows:

[0014] The device for monitoring gas can monitor the gas concentration at the drilling hole in real time and ensure the accuracy of gas concentration detection through the box body with through holes and the sleeve that can be installed on the drill pipe of the drill tool. The drill pipe passes through the box body and the sleeve and rotates normally for underground tunneling operations. The gas at the drilling hole enters the gas sensor after passing through the sleeve and the drill source detection component in turn under the action of the negative pressure fan.

[0015] In addition, the device for monitoring gas is also provided with an external detection component. Under the action of the negative pressure fan, the external gas enters the gas sensor through the external detection component, thereby expanding the monitoring range of the gas concentration, ensuring the safety of underground tunneling operations, and providing safety guarantees for on-site operators and miners. Description of the Drawings

[0016] Figure 1 is the overall structural schematic diagram of the device for monitoring gas of the present utility model;

[0017] Figure 2 is the front view of the device for monitoring gas of the present utility model;

[0018] Figure 3 is Figure 2 the partial enlarged view at A in

[0019] Figure 4 is the structural schematic diagram of the cleaning component in the present utility model;

[0020] Figure 5 This is the module diagram of the gas sensor in the present utility model;

[0021] Figure 6 This is the structural schematic diagram of the external detection component in the present utility model;

[0022] In the figure: 1, box body; 2, sleeve; 3, drill pipe; 4, drill source detection component; 5, gas sensor; 6, sound and light alarm; 7, negative pressure fan; 8, detection box; 9, first air inlet channel; 10, filter layer; 11, drive ring; 12, connecting rod; 13, cleaning frame; 14, cleaning strip; 15, extension pipe; 16, universal metal hose; 17, slide rail; 18, slider; 19, first support rod; 20, second support rod; 21, fastening buckle; 22, slag storage box; 23, slag discharge port. Specific implementation manners

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Embodiment 1

[0024] This embodiment provides a device for monitoring gas, as shown in Figure 1 and Figure 2 . The gas monitoring device includes a box body 1 with a hollow interior. A through hole is provided on one side of the box body 1, and a sleeve 2 is installed on the other side. The box body 1 can be installed on the drill pipe 3 of the drill tool through the through hole and the sleeve 2. The drill pipe 3 of the drill tool passes through the box body 1 and the sleeve 2 and rotates normally for underground tunneling operations. The box body 1 is used to collect and monitor the gas source during the underground tunneling process in the coal-bearing strata, and the sleeve 2 provides an inlet channel for the gas source and drill slag. To facilitate understanding of the internal structure of the box body 1, Figure 1 the box board on one side of the box body 1 is removed in Figure 1 and Figure 2 . As shown in

[0025] The working principle of the device for monitoring gas is as follows:

[0026] Install the device for monitoring gas on the drill pipe 3 of the drill tool through the through-hole and the sleeve 2; the drill pipe 3 of the drill tool passes through the box body 1 and the sleeve 2 and rotates normally for underground tunneling operations; during the operation, activate the negative pressure fan 7 at the top of the box body 1 and hold the box body 1 by hand; the gas at the drilling hole enters the gas sensor 5 successively through the sleeve 2 and the drill source detection component 4 under the action of the negative pressure fan 7; when the concentration of the gas exceeds the standard, the sound and light alarm 6 gives an alarm, so as to realize the real-time monitoring of the gas concentration at the drilling hole and ensure the accuracy of the gas concentration detection.

[0027] In this embodiment, the function of the drill source detection component 4 is to separate the gas source from the drill cuttings. The gas source enters the gas sensor 5 through the drill source detection component 4, and the drill cuttings are separated and enter the box body 1 through the drill source detection component 4. Therefore, the drill source detection component 4 in this embodiment adopts the following structure:

[0028] As Figure 2 and Figure 3 shown, the drill source detection component 4 includes a detection box 8, a first air inlet channel 9, a filter layer 10, a cleaning frame 13 and a driving disc. Among them, the detection box 8 is fixedly installed in the inner cavity of the box body 1, and is located at the end of the sleeve 2 and communicates with the sleeve 2; the bottom end of the detection box 8 is open, and a first air inlet channel 9 communicating with the air inlet channel of the gas sensor 5 is provided at the top. A hole for the drill pipe 3 of the drill tool to pass through is also provided on the rear side wall of the detection box 8; the gas source enters the detection box 8 from the sleeve 2 under the action of the negative pressure fan 7, and then enters the air inlet channel of the gas sensor 5 through the first air inlet channel 9 of the detection box 8; after the drill cuttings enter the detection box 8 through the drill pipe 3 of the drill tool, since the bottom end of the detection box 8 is open, the drill cuttings can fall into the box body 1. In order to prevent the drill cuttings from entering the first air inlet channel 9 and blocking the gas path or damaging the gas sensor 5 and the negative pressure fan 7, as Figure 3 shown, a filter layer 10 is also provided at the bottom of the first air inlet channel 9 in this embodiment.

[0029] Furthermore, as a preferred technical solution of this embodiment, in order to prevent the drill cuttings from adhering to the filter layer 10 and affecting the gas path, as Figure 3 and Figure 4As shown, in this embodiment, a cleaning component capable of cleaning the filter layer 10 is further installed in the detection box 8. The cleaning component includes a driving ring 11 rotatably installed at the hole on the inner wall of the detection box 8 and coaxially arranged with the drill pipe 3 of the drill tool. The driving ring 11 can be sleeved on the drill pipe 3 of the drill tool. One side of the driving disk is connected to the cleaning frame 13 through a connecting rod 12. The cleaning frame 13 rotates through the driving ring 11, and cleaning strips 14 capable of contacting the filter layer are installed on the cleaning frame 13. When the drill pipe 3 of the drill tool rotates, the driving ring 11 rotates accordingly, and then the cleaning frame 13 rotates to make the cleaning strips 14 on it clean the filter layer.

[0030] As Figure 5 shown, the gas sensor 5 in this embodiment is built-in with a ZigBee transmission module and an optical fiber transmission module. These two modules provide communication and alarm functions for this device. The ZigBee transmission module is a short-distance and low-power wireless communication technology, which can realize information transmission between devices. Here, when the gas sensor 5 detects that the gas concentration exceeds the standard, this information is wirelessly transmitted to the audible and visual alarm 6 through the ZigBee transmission module. After receiving the signal, the audible and visual alarm 6 will immediately issue an alarm to remind the on-site personnel to evacuate as soon as possible, thus greatly improving the safety of miners. The optical fiber transmission module is a long-distance and high-speed communication technology that transmits data by utilizing the characteristics of light. The optical fiber transmission module transmits the detection result of the gas sensor 5 to the ground monitoring host in real time. The operators on the ground can understand the gas situation in the mine in real time and make timely responses, thereby effectively preventing the gas from accumulating to a dangerous level. Through this gas monitoring device, not only can the gas be monitored in real time and automatically, but also an alarm can be issued in time when the gas concentration exceeds the standard, and the monitoring result can be transmitted to the ground in real time, so that both miners and ground operators can timely understand the gas situation in the mine. Embodiment 2

[0031] On the basis of Embodiment 1, in addition to being able to monitor the gas concentration at the drilling hole in real time and ensure the accuracy of gas concentration detection, in order to expand the monitoring range of the gas concentration, as Figure 1 shown, this embodiment also installs an external detection component outside the box body 1.

[0032] As Figure 1 and Figure 6As shown in the figure, the external detection component includes an extension pipe 15 communicated with the air inlet channel of the gas sensor 5, a universal metal hose 16 installed at the end of the extension pipe 15, and a support component installed on the outer wall of the box body 1 to support the extension pipe 15. The support component includes a slide rail 17 installed on the outer wall of the box body 1, a slider 18 slidably installed on the slide rail 17, a first support rod 19 with one end hinged to the slider 18, a second support rod 20 telescopically installed in the first support rod 19, and a fastening buckle 21 located at the end of the second support rod 20 and fixed to the extension pipe 15; the position of the extension pipe 15 and the universal metal hose 16 can be adjusted through the support component, making the external gas collection position more flexible.

[0033] During the operation, the negative pressure fan 7 at the top of the box body 1 is enabled. Under the action of the negative pressure fan 7, the external gas enters the extension pipe 15 through the universal metal hose 16, and then enters the gas sensor 5 through the extension pipe 15; when the gas concentration of either the gas source at the drilling site or the external gas source exceeds the standard, the sound and light alarm 6 will give an alarm, thereby expanding the monitoring range of the gas concentration, ensuring the safety of the underground excavation operation construction, and providing safety protection for the on-site operators and miners. Embodiment 3

[0034] On the basis of Embodiment 1 and Embodiment 2, considering the further collection and treatment of the drill cuttings after they enter the box body 1 through the drill pipe 3 of the drill tool, as Figure 1 shown in the figure, in this embodiment, a slag storage box 22 is communicated with the bottom of the box body 1; a funnel is provided at the bottom inside the box body 1, and it is connected to the slag storage box 22 through the funnel; when the drill cuttings enter the box body 1 through the drill pipe 3 of the drill tool, they enter the slag storage box 22 through the funnel. When a certain amount of slag is stored in the slag storage box 22, the slag is discharged through the slag discharge port 23 on one side of the slag storage box 22.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for monitoring gas, characterized in that: The device for monitoring gas includes a box body. There is a through hole on one side of the box body, and a sleeve is installed on the other side. The box body can be installed on the drill pipe of the drill tool through the through hole and the sleeve. Inside the box body, there is a drill source detection component, and a gas sensor, an audible and visual alarm, and a negative pressure fan are installed on its outer top. The drill source detection component is fixedly arranged in the inner cavity of the box body and is connected to the end of the sleeve. The gas sensor is fixedly arranged in the middle of the top of the box body, and the gas sensor is provided with an air inlet channel connected to the drill source detection component. The negative pressure fan is fixedly arranged at the rear of the top of the box body and is connected to the inner cavity of the gas sensor.

2. The device for monitoring gas according to claim 1, wherein: The gas sensor is internally provided with a ZigBee transmission module and an optical fiber transmission module. It is communicatively connected to the audible and visual alarm through the ZigBee transmission module, and is communicatively connected to the ground monitoring host through the optical fiber transmission module.

3. The device for monitoring gas according to claim 1, wherein: The drill source detection component includes a detection box, a first air inlet channel, and a filter layer. The detection box is fixedly installed in the inner cavity of the box body and is located at the end of the sleeve. The bottom of the detection box is open, and a first air inlet channel communicating with the air inlet channel of the gas sensor is provided at the top. A filter layer is provided at the bottom of the first air inlet channel.

4. The device for monitoring gas according to claim 3, characterized in that: A cleaning component capable of cleaning the filter layer is further provided inside the detection box. The cleaning component includes a driving ring rotatably installed on the inner wall of the detection box and coaxially arranged with the sleeve. The driving ring can be sleeved on the drill pipe of the drill tool. One side of the driving disc is connected to a cleaning frame through a connecting rod. The cleaning frame rotates through the driving ring, and cleaning strips capable of contacting the filter layer are installed on the cleaning frame.

5. The device for monitoring gas according to claim 1, characterized in that: An external detection component is further installed outside the box body. The external detection component includes an extension pipe communicating with the air inlet channel of the gas sensor, a universal metal hose installed at the end of the extension pipe, and a support component installed on the outer wall of the box body to support the extension pipe.

6. The device for monitoring gas according to claim 5, wherein: The support component includes a slide rail installed on the outer wall of the box body, a slider slidably installed on the slide rail, a first support rod hinged to the slider at one end, a second support rod telescopically installed inside the first support rod, and a fastening buckle fixed to the extension pipe at the end of the second support rod.

7. The device for monitoring gas according to claim 1, wherein: The bottom of the box body is communicated with a slag storage box, and a slag discharge port is formed on one side of the slag storage box.

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