Online monitoring device for coal mine gas sampling pipeline

Abstract

The invention discloses an on-line monitoring device for a coal mine gas sampling pipeline, which belongs to the technical field of pipeline monitoring and comprises a monitoring device body and a remote monitoring host. The monitoring device body comprises a plurality of pressure information detectors, a signal acquisition module, a digital quantity control module, a CPU (Central Processing Unit) control module, a touch screen and a network transmission module, and the number of the pressure information detectors is determined according to the number of gas sampling pipelines needing to be monitored; each pressure information detector is correspondingly installed on a gas sampling pipeline needing to be monitored and communicated with the gas sampling pipeline, and the signal transmission end of each pressure information detector is connected with the signal acquisition module and the digital quantity control module. The signal acquisition module, the digital quantity control module, the touch screen and the network transmission module are respectively connected with the CPU control module, and the network transmission module is connected with the remote monitoring host. The state of the coal mine gas sampling pipeline can be monitored on line in real time, and intelligence and high efficiency are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline monitoring, and in particular relates to an online monitoring device for a coal mine gas sampling pipeline. Background Art

[0002] In the long-distance gas monitoring process of coal mining enterprises, the gas sampling pipelines laid from the installation of gas analysis equipment to various monitoring points are a key component to ensure safety and effective monitoring. Due to the complex and changeable environment of coal mines, the laid gas sampling pipelines not only need to withstand certain physical pressures, but also need to cope with challenges such as chemical corrosion and temperature changes. Especially when the total laying length reaches 30KM, small-diameter pipelines made of non-metallic materials are more susceptible to external factors and slight damage, resulting in tiny leaks or blockages. This not only leads to inaccurate gas analysis data, but may also cause safety hazards.

[0003] Traditional troubleshooting methods rely on manual pressure testing section by section, which is time-consuming and labor-intensive, especially when faced with long-distance, multi-branch pipeline systems. Maintenance personnel need to carry professional tools to check one by one along the pipeline, which is extremely labor-intensive and inefficient. In addition, traditional methods make it difficult to monitor the status of pipelines in real time, and it is impossible to detect and deal with potential problems in a timely manner, which in turn affects production efficiency and safety. Therefore, in order to solve the above problems, it is particularly urgent to develop an intelligent and efficient coal mine gas sampling pipeline online monitoring device that can monitor the status of coal mine gas sampling pipelines in real time online. Summary of the invention

[0004] The present invention aims at the above-mentioned problems, remedies the deficiencies of the prior art, and provides an intelligent and efficient coal mine gas sampling pipeline online monitoring device capable of real-time online monitoring of the status of the coal mine gas sampling pipeline.

[0005] To achieve the above purpose, the present invention adopts the following technical solution.

[0006] The present invention provides an online monitoring device for coal mine gas sampling pipelines, comprising a monitoring device body and a remote monitoring host; the monitoring device body comprises a pressure information detector, a signal acquisition module, a digital quantity control module, a CPU control module, a touch screen, and a network transmission module, a plurality of pressure information detectors are provided, and the number of pressure information detectors is determined according to the number of gas sampling pipelines to be monitored, each pressure information detector is correspondingly installed on each gas sampling pipeline to be monitored and is connected to the gas sampling pipeline, the signal transmission end of each pressure information detector is respectively connected to the signal acquisition module and the digital quantity control module, the signal acquisition module, the digital quantity control module, the touch screen, and the network transmission module are respectively connected to the CPU control module, and the network transmission module is connected to the remote monitoring host.

[0007] As a preferred solution of the present invention, the pressure information detector includes an air inlet connector, a pressure sensor, a two-way solenoid valve, a filter, and an air outlet connector. The air inlet connector, the pressure sensor, the two-way solenoid valve, the filter, and the air outlet connector are connected in sequence through pipelines. An electronic water level gauge is provided in the filter. The drain port of the filter is connected to a drain solenoid valve. The air inlet connector and the air outlet connector are respectively used for installation with a gas sampling pipeline; the signal transmission ends of the two-way solenoid valve and the drain solenoid valve are connected to a digital control module through a control line, and the two-way solenoid valve and the drain solenoid valve are both controlled to open and close through a remote monitoring host and a touch screen.

[0008] Furthermore, the remote monitoring host and touch screen are used to display the values ​​of the pressure sensor and the electronic water level gauge, and to display the switch status of the two-way solenoid valve and the drainage solenoid valve.

[0009] As another preferred embodiment of the present invention, the pressure information detector includes an air inlet connector, a pressure sensor, a three-way solenoid valve, a filter, and an air outlet connector; one interface of the three-way solenoid valve is connected to the output port of the air inlet connector via a pipeline, another interface of the three-way solenoid valve is connected to the gas circuit interface of the pressure sensor via a pipeline, the third interface of the three-way solenoid valve is connected to the input port of the filter via a pipeline, and the output port of the filter is connected to the input port of the air outlet connector via a pipeline; an electronic water level gauge is provided in the filter, the drain port of the filter is connected to a drain solenoid valve, the input port of the air inlet connector and the output port of the air outlet connector are respectively used for installation with a gas sampling pipeline; the signal transmission ends of the three-way solenoid valve and the drain solenoid valve are connected to the digital control module via a control line, and the three-way solenoid valve and the drain solenoid valve are both controlled to open and close by a remote monitoring host and a touch screen.

[0010] Furthermore, the remote monitoring host and touch screen are used to display the values ​​of the pressure sensor and the electronic water level gauge, and to display the switch status of the three-way solenoid valve and the drain solenoid valve.

[0011] As another preferred solution of the present invention, the signal transmission ends of the pressure sensor and the electronic water level gauge are connected to the signal acquisition module through signal lines.

[0012] As another preferred embodiment of the present invention, the measuring range of the pressure sensor is -0.01 MPa to 5 MPa, and the transmission signal includes RS485 differential voltage signal, 4-20 mA current signal, DC 0-10 V voltage signal, and DC 0-5 V voltage signal.

[0013] As another preferred solution of the present invention, the signal acquisition module processes the collected pressure sensor and electronic water level count value information through the CPU control module, displays it on the touch screen, and uploads it to the remote monitoring host through the network transmission module.

[0014] As another preferred embodiment of the present invention, when the water level in the filter reaches the threshold set by the electronic water level meter, the CPU control module sends control information to the digital control module to open the drain solenoid valve to drain the water stored in the filter and record the number of times the drain solenoid valve drains water.

[0015] Beneficial effects of the present invention:

[0016] The present invention provides an online monitoring device for coal mine gas sampling pipelines, which can display the pressure information inside each section of the gas sampling pipeline in real time on a remote monitoring host and a touch screen, can judge the state of the gas sampling pipeline according to the change of the pressure information in the gas sampling pipeline, and can monitor a certain section of the gas sampling pipeline separately according to the actual situation; the present invention can provide users with accurate pipeline status and effectively reduce the maintenance workload of industrial and mining enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a structural schematic diagram of an online monitoring device for coal mine gas sampling pipelines according to Embodiment 1 of the present invention.

[0019] Figure 2 This is a schematic diagram of the gas path connection between the Nth and N+1th coal mine gas sampling pipeline online monitoring devices.

[0020] Figure 3 This is a structural schematic diagram of a coal mine gas sampling pipeline online monitoring device according to Embodiment 2 of the present invention.

[0021] Markings in the figure: 1 is the monitoring device body, 101 is the air inlet connector, 102 is the pressure sensor, 103 is the two-way solenoid valve, 104 is the filter, 105 is the electronic water level gauge, 106 is the drain solenoid valve, 107 is the air outlet connector, 108 is the three-way solenoid valve, 201 is the signal acquisition module, 202 is the digital quantity control module, 203 is the CPU control module, 204 is the touch screen, 205 is the network transmission module, 301 is the remote monitoring host, and 4 is the gas sampling pipeline. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] Embodiment 1:

[0024] like Figure 1 and Figure 2 As shown, an online monitoring device for coal mine gas sampling pipelines provided in Embodiment 1 of the present invention includes a monitoring device body 1 and a remote monitoring host 301; the monitoring device body 1 includes a pressure information detector, a signal acquisition module 201, a digital quantity control module 202, a CPU control module 203, a touch screen 204, and a network transmission module 205. There are multiple pressure information detectors, and the number of pressure information detectors is determined according to the number of gas sampling pipelines 4 that need to be monitored. Each pressure information detector is correspondingly installed on each gas sampling pipeline 4 that needs to be monitored and is connected to the gas sampling pipeline 4. The signal transmission end of each pressure information detector is respectively connected to the signal acquisition module 201 and the digital quantity control module 202. The signal acquisition module 201, the digital quantity control module 202, the touch screen 204, and the network transmission module 205 are respectively connected to the CPU control module 203, and the network transmission module 205 is connected to the remote monitoring host 301.

[0025] Specifically, the pressure information detector includes an air inlet connector 101, a pressure sensor 102, a two-way solenoid valve 103, a filter 104, and an air outlet connector 107. The air inlet connector 101, the pressure sensor 102, the two-way solenoid valve 103, the filter 104, and the air outlet connector 107 are connected in sequence through pipelines. An electronic water level gauge 105 is provided in the filter 104. The drain port of the filter 104 is connected to a drain solenoid valve 106. The air inlet connector 101 and the air outlet connector 107 are respectively used for installation with the gas sampling pipeline 4; the signal transmission ends of the two-way solenoid valve 103 and the drain solenoid valve 106 are connected to the digital control module 202 through a control line, and the two-way solenoid valve 103 and the drain solenoid valve 106 are both controlled to open and close through the remote monitoring host 301 and the touch screen 204.

[0026] Specifically, the remote monitoring host 301 and the touch screen 204 are used to display the values ​​of the pressure sensor 102 and the electronic water level gauge 105, and to display the switch status of the two-way solenoid valve 103 and the drain solenoid valve 106. The signal transmission end of the pressure sensor 102 and the electronic water level gauge 105 is connected to the signal acquisition module 201 through a signal line. The measurement range of the pressure sensor 102 is -0.01MPa to 5MPa, and the transmission signal includes RS485 differential voltage signal, 4-20mA current signal, DC 0-10V voltage signal, and DC 0-5V voltage signal. The signal acquisition module 201 processes the collected numerical information of the pressure sensor 102 and the electronic water level gauge 105 through the CPU control module 203, displays it on the touch screen 204, and uploads it to the remote monitoring host 301 through the network transmission module 205.

[0027] Specifically, when the water level in the filter 104 reaches the threshold set by the electronic water level meter 105, the CPU control module 203 sends control information to the digital control module 202 to open the drain solenoid valve 106 to drain the water stored in the filter 104 and record the number of times the drain solenoid valve 106 drains water.

[0028] Embodiment 1 describes in detail an online monitoring device for coal mine gas sampling pipelines designed based on a two-way solenoid valve 103. The core of the device is to achieve accurate monitoring of the internal pressure conditions of each section of the gas sampling pipeline 4 through a pressure information detector. Specifically, each pressure information detector includes an air inlet connector 101, a pressure sensor 102, a two-way solenoid valve 103, a filter 104, an electronic water level gauge 105 and a drain solenoid valve 106, and these components are connected in sequence through pipelines to form a complete pressure information detector. Among them, the air inlet connector 101 and the air outlet connector 107 are respectively used to connect to the actual gas sampling pipeline, so that the entire system can be seamlessly integrated into the existing pipeline layout.

[0029] It is worth noting that in order to ensure the quality of the gas sample, an electronic water level meter 105 is set in the filter 104 to monitor and control the moisture content in the filter element to prevent excessive humidity from affecting the measurement accuracy. At the same time, once the moisture content exceeds the standard, the CPU control module 203 will automatically trigger the action of the drainage solenoid valve 106 to drain the excess moisture and record the drainage times for subsequent analysis.

[0030] In addition, the signal acquisition module 201 in this embodiment is responsible for collecting data from each pressure information detector and transmitting it to the CPU control module 203 for processing. The processed data can not only be intuitively displayed on the touch screen 204 for on-site operators to view, but can also be synchronously sent to the remote monitoring host 301 through the network transmission module 205, realizing the function of local and remote dual monitoring. This design greatly improves the flexibility and practicality of the system, allowing managers to grasp the latest pipeline operation status at any time no matter where they are.

[0031] Embodiment 2:

[0032] In order to meet the use requirements of different users, the second embodiment of the present invention provides an online monitoring device for coal mine gas sampling pipelines, such as Figure 1 and Figure 3 As shown, it includes a monitoring device body 1 and a remote monitoring host 301; the monitoring device body 1 includes a pressure information detector, a signal acquisition module 201, a digital quantity control module 202, a CPU control module 203, a touch screen 204, and a network transmission module 205. There are multiple pressure information detectors, and the number of pressure information detectors is determined according to the number of gas sampling pipelines 4 that need to be monitored. Each pressure information detector is correspondingly installed on each gas sampling pipeline 4 that needs to be monitored and is connected to the gas sampling pipeline 4. The signal transmission end of each pressure information detector is respectively connected to the signal acquisition module 201 and the digital quantity control module 202. The signal acquisition module 201, the digital quantity control module 202, the touch screen 204, and the network transmission module 205 are respectively connected to the CPU control module 203, and the network transmission module 205 is connected to the remote monitoring host 301.

[0033] Specifically, the pressure information detector includes an air inlet connector 101, a pressure sensor 102, a three-way solenoid valve 108, a filter 104, and an air outlet connector 107; one interface of the three-way solenoid valve 108 is connected to the output port of the air inlet connector 101 through a pipeline, another interface of the three-way solenoid valve 108 is connected to the air circuit interface of the pressure sensor 102 through a pipeline, the third interface of the three-way solenoid valve 108 is connected to the input port of the filter 104 through a pipeline, and the output port of the filter 104 is connected to the air outlet connector 107. 07 are connected by pipelines; an electronic water level gauge 105 is provided in the filter 104, and the drain port of the filter 104 is connected to a drain solenoid valve 106, and the input port of the air inlet connector 101 and the output port of the air outlet connector 107 are respectively used for installation with the gas sampling pipeline 4; the signal transmission ends of the three-way solenoid valve 108 and the drain solenoid valve 106 are connected to the digital quantity control module 202 through a control line, and the three-way solenoid valve 108 and the drain solenoid valve 106 are both controlled to open and close through the remote monitoring host 301 and the touch screen 204.

[0034] Specifically, the remote monitoring host 301 and the touch screen 204 are used to display the pressure sensor 102, the electronic water level counter value, and the switch status of the three-way solenoid valve and the drain solenoid valve. The signal transmission end of the pressure sensor 102 and the electronic water level gauge 105 is connected to the signal acquisition module 201 through a signal line. The measurement range of the pressure sensor 102 is -0.01MPa to 5MPa, and the transmission signal includes RS485 differential voltage signal, 4-20mA current signal, DC 0-10V voltage signal, and DC 0-5V voltage signal. The signal acquisition module 201 processes the collected numerical information of the pressure sensor 102 and the electronic water level gauge 105 through the CPU control module 203, displays it on the touch screen 204, and uploads it to the remote monitoring host 301 through the network transmission module 205.

[0035] Specifically, when the water level in the filter 104 reaches the threshold set by the electronic water level meter 105, the CPU control module 203 sends control information to the digital control module 202 to open the drain solenoid valve 106 to drain the water stored in the filter 104 and record the number of times the drain solenoid valve 106 drains water.

[0036] The second embodiment is optimized and upgraded on the basis of the first embodiment, and the design of the three-way solenoid valve 108 is particularly introduced to further improve the functionality and adaptability of the system. Compared with the two-way solenoid valve 103, the three-way solenoid valve 108 provides more fluid path options, which is particularly important for gas sampling under complex working conditions. For example, in some cases, it may be necessary to temporarily adjust the gas flow direction or cut off the flow of a specific section, and the advantages of the three-way solenoid valve 108 are reflected at this time.

[0037] In this embodiment, one interface of the three-way solenoid valve 108 is connected to the output port of the gas inlet connector 101, another interface is connected to the gas circuit interface of the pressure sensor 102, and the third interface is connected to the input port of the filter 104. Such a layout ensures that the normal gas sampling process will not be disturbed even when performing special operations, thereby ensuring the continuity and accuracy of data collection.

[0038] In addition, this embodiment continues to use the application of the electronic water level meter 105 and the drainage solenoid valve 106 in the first embodiment, which is also to maintain a good gas sample quality. At the same time, the status information of all key components, such as the reading of the pressure sensor 102, the value of the electronic water level meter 105, the switch status of the three-way solenoid valve 108 and the drainage solenoid valve 106, etc., will be uploaded to the remote monitoring host 301 in real time, providing detailed data support for decision makers.

[0039] To sum up, in the present invention, whether the two-way solenoid valve 103 or the three-way solenoid valve 108 is used, the pressure information inside each section of the gas sampling pipeline 4 can be displayed in real time on the remote monitoring host 301 and the touch screen 204, and the state of the gas sampling pipeline 4 can be judged according to the change of the pressure information in the gas sampling pipeline 4, and a certain section of the gas sampling pipeline 4 can be monitored separately according to the actual situation, which can provide the user with accurate pipeline status and effectively reduce the maintenance workload of industrial and mining enterprises.

[0040] It can be understood that the above specific description of the present invention is only used to illustrate the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Those skilled in the art should understand that the present invention can still be modified or replaced by equivalents to achieve the same technical effects; as long as the use requirements are met, they are within the protection scope of the present invention.

Claims

1. An online monitoring device for coal mine gas sampling pipeline, characterized in that: It includes a monitoring device body and a remote monitoring host; the monitoring device body includes a pressure information detector, a signal acquisition module, a digital quantity control module, a CPU control module, a touch screen, and a network transmission module. There are multiple pressure information detectors, and the number of pressure information detectors is determined according to the number of gas sampling pipelines that need to be monitored. Each pressure information detector is installed on each gas sampling pipeline that needs to be monitored and is connected to the gas sampling pipeline. The signal transmission end of each pressure information detector is respectively connected to the signal acquisition module and the digital quantity control module. The signal acquisition module, the digital quantity control module, the touch screen, and the network transmission module are respectively connected to the CPU control module, and the network transmission module is connected to the remote monitoring host.

2. The coal mine gas sampling pipeline online monitoring device according to claim 1 is characterized in that: The pressure information detector includes an air inlet connector, a pressure sensor, a two-way solenoid valve, a filter, and an air outlet connector. The air inlet connector, the pressure sensor, the two-way solenoid valve, the filter, and the air outlet connector are connected in sequence through pipelines. An electronic water level gauge is provided in the filter. The drain port of the filter is connected to a drain solenoid valve. The air inlet connector and the air outlet connector are respectively used for installation with a gas sampling pipeline; the signal transmission ends of the two-way solenoid valve and the drain solenoid valve are connected to a digital control module through a control line, and the two-way solenoid valve and the drain solenoid valve are both controlled to open and close through a remote monitoring host and a touch screen.

3. The coal mine gas sampling pipeline online monitoring device according to claim 2 is characterized in that: The remote monitoring host and touch screen are used to display the values ​​of the pressure sensor and the electronic water level gauge, and to display the switch status of the two-way solenoid valve and the drainage solenoid valve.

4. The coal mine gas sampling pipeline online monitoring device according to claim 1, characterized in that: The pressure information detector includes an air inlet joint, a pressure sensor, a three-way solenoid valve, a filter, and an air outlet joint; one interface of the three-way solenoid valve is connected to the output port of the air inlet joint through a pipeline, another interface of the three-way solenoid valve is connected to the gas circuit interface of the pressure sensor through a pipeline, the third interface of the three-way solenoid valve is connected to the input port of the filter through a pipeline, and the output port of the filter is connected to the input port of the air outlet joint through a pipeline; an electronic water level gauge is provided in the filter, the drain port of the filter is connected to a drain solenoid valve, the input port of the air inlet joint and the output port of the air outlet joint are respectively used for installation with a gas sampling pipeline; the signal transmission ends of the three-way solenoid valve and the drain solenoid valve are connected to the digital control module through a control line, and the three-way solenoid valve and the drain solenoid valve are both controlled to open and close through a remote monitoring host and a touch screen.

5. The coal mine gas sampling pipeline online monitoring device according to claim 4 is characterized in that: The remote monitoring host and touch screen are used to display the values ​​of the pressure sensor and the electronic water level gauge, and to display the switch status of the three-way solenoid valve and the drainage solenoid valve.

6. A coal mine gas sampling pipeline online monitoring device according to claim 2 or 4, characterized in that: The signal transmission ends of the pressure sensor and the electronic water level gauge are connected to the signal acquisition module through signal lines.

7. A coal mine gas sampling pipeline online monitoring device according to claim 2 or 4, characterized in that: The measuring range of the pressure sensor is -0.01MPa to 5MPa, and the transmission signal includes RS485 differential voltage signal, 4-20mA current signal, DC 0-10V voltage signal, and DC 0-5V voltage signal.

8. The coal mine gas sampling pipeline online monitoring device according to claim 2 or 4, characterized in that: The signal acquisition module processes the collected information of the pressure sensor and the electronic water level count value through the CPU control module, displays it on the touch screen, and uploads it to the remote monitoring host through the network transmission module.

9. A coal mine gas sampling pipeline online monitoring device according to claim 2 or 4, characterized in that: When the water level in the filter reaches the threshold set by the electronic water level gauge, the CPU control module sends control information to the digital control module to open the drain solenoid valve to drain the water stored in the filter and record the number of times the drain solenoid valve drains water.

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