Coal seam floor water disaster monitoring and early warning device
By adopting floating structure and secondary sensors in coal seam bottom water damage monitoring equipment, combined with float and distance sensors, real-time monitoring of water level changes is achieved, and the problem of low safety of existing equipment in corrosive and explosive environments is solved. , improves the monitoring and early warning safety performance of coal mine base water and structural water.
Patent Information
- Application Number
- CN202420639165.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-03-29
AI Technical Summary
The existing coal seam bottom water damage monitoring equipment uses electronic sensors in corrosive vulcanized gas and explosive gas environments, which has low safety problems, making it difficult to effectively monitor and early warning of emergencies in coal mine bottom water and structural water. .
A coal seam bottom water damage monitoring and early warning device was designed, using a floating structure and a secondary connection sensor, which drove the piston rod to move through the float, and liquid entered or flowed out of the liquid collection chamber through the pipe. The water level changes were monitored in real time by flowmeters and sensors to avoid Direct contact with water or gas, increase safety performance, and install distance sensors at the flexible clamp head to assist in verifying the piston rod movement distance.
It effectively avoids direct contact between monitoring and early warning devices and water or gas, reduces the risks of corrosion and explosion, and improves safety performance. At the same time, the structure is simple and easy to use, which is suitable for the monitoring and early warning needs of coal mine base water and structural water.
Smart Images
Figure CN222208015U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of monitoring equipment, in particular to a coal seam floor water hazard monitoring and early warning device. Background Art
[0002] my country is rich in coal resources, and the amount of coal produced and consumed is large, but it is easily affected by water damage during the coal production process. The floor is the rock layer directly under the coal seam in the normal sequence of coal-bearing strata. Common coal seam floor rocks include claystone, mudstone and siltstone. Floor claystone is sometimes refractory clay with industrial value. Floor rock can also be sandstone, conglomerate or limestone. Coal seam is a layered coal body in the coal-bearing rock system. It is a peat layer transformed from plant remains in peat swamps by peatification, and is formed by coalification after being buried. Coal mine floor water and structural water damage will seriously affect the mining of coal resources, the safety of underground work, the production efficiency and economic benefits of enterprises. Coal mine floor water inrush is a common and prominent problem in the mining of coal resources. The factors affecting the occurrence of water inrush in the coal mine floor are complex and changeable. Moreover, its harm is serious and is a more serious geological disaster in coal mines. It is the most important safety production hazard for coal mine safety production. The prevention and control of coal mine floor water and structural water is a problem that must be solved in advance before coal mining. Existing water hazard monitoring equipment mostly uses electronic components and sensors to monitor water levels, and then transmits electronic signal lights to achieve early warning functions. However, there are corrosive sulfide gases and explosive gas in the coal seam, so the electronic sensor and electromagnetic wave signal transmission method are less safe. Utility Model Content
[0003] The purpose of the utility model is to provide a coal seam floor water hazard monitoring and early warning device, which detects water level changes through a floating structure and then collects signals through a secondary connected sensor, which can effectively avoid direct contact between the monitoring and early warning device and water or gas to cause corrosion or explosion, and has higher safety performance.
[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a coal seam floor water hazard monitoring and early warning device, comprising a shell, the shell is a hollow structure, a flexible clamping head is installed at the upper end of the shell, and a fixed seat is installed at the lower end, a circular groove is provided on the bottom surface of the flexible clamping head, and the fixed seat is fastened to the bottom surface of the shell by bolts, and a pump body is also provided between the flexible clamping head and the fixed seat, a piston column is slidably connected in the pump body, and a downward piston rod is fixedly connected to the lower end of the piston column, a circular hole is provided on the bottom surface of the shell, and the piston rod extends outward after passing through the circular hole, and a float is also fixedly connected to the end of the piston rod, and a liquid inlet pipe and a liquid return pipe connected to the pump body are also provided on one side of the shell, and the other ends of the liquid inlet pipe and the liquid return pipe are connected to the early warning device, and a distance sensor is also provided on the top surface of the shell.
[0005] Furthermore, the early warning device includes an upper box body and a lower box body, and a liquid collecting bin, a connecting pipe, a flow meter, a sensor and a valve switch are arranged in the upper box body. The bottom of the liquid collecting bin is connected to the liquid inlet pipe through a connecting pipe, and a flow meter and a valve switch are installed between the two. The sensor is located in the liquid collecting bin to detect the liquid level status in real time.
[0006] Furthermore, the lower box body is provided with a liquid collecting bin, a connecting pipe, a flow meter, a sensor and a valve switch. The bottom of the liquid collecting bin is connected to the liquid inlet pipe through a connecting pipe, and a flow meter and a valve switch are installed between the two. The sensor is located in the liquid collecting bin to detect the liquid level status in real time.
[0007] Furthermore, the liquid collecting bin is also provided with a liquid filling port and an observation window.
[0008] Furthermore, the distance sensor is sealed and installed in the flexible clamping head.
[0009] The beneficial effects of the utility model are: 1) the utility model drives the piston rod to move by the float, so that the liquid filled in the pump body enters or flows out of the liquid collecting bin through the pipeline. During the process, the flow meter and the sensor are used for real-time monitoring to judge the moving distance of the float. After calculation, the distance change of the water level at the float can be obtained, thereby avoiding direct contact between the monitoring and early warning device and water or gas to cause corrosion or explosion, and the safety performance is higher. Secondly, a distance sensor is also installed at the flexible clamping head to assist in verifying the moving distance of the piston column, which is convenient for correction processing. The structure is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a structural schematic diagram of the utility model.
[0011] Figure 2 It is a partial structural sectional view of the utility model.
[0012] In the figure: 1. Shell; 2. Flexible clamping head; 3. Fixed seat; 4. Pump body; 5. Piston column; 6. Piston rod; 7. Float; 8. Liquid inlet pipe; 9. Liquid return pipe; 10. Early warning device; 11. Distance sensor; 12. Liquid collecting bin; 13. Connecting pipe; 14. Flow meter; 15. Sensor; 16. Valve switch; 17. Liquid filling port; 18. Observation window. DETAILED DESCRIPTION
[0013] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.
[0014] Embodiment: As shown in the figure, the utility model of a coal seam floor water hazard monitoring and early warning device comprises:
[0015] The shell 1 has a hollow structure, a flexible clamping head 2 is installed at the upper end of the shell 1, and a fixed seat 3 is installed at the lower end. A circular groove is provided on the bottom surface of the flexible clamping head 2, and the fixed seat 3 is fastened to the bottom surface of the shell 1 by bolts. A pump body 4 is also provided between the flexible clamping head 2 and the fixed seat 3. A piston column 5 is slidably connected in the pump body 4, and a downward piston rod 6 is fixedly connected to the lower end of the piston column 5. A circular hole is provided on the bottom surface of the shell 1, and the piston rod 6 extends outward after passing through the circular hole. A float 7 is also fixedly connected to the end of the piston rod 6. A liquid inlet pipe 8 and a liquid return pipe 9 connected to the pump body 4 are also provided on one side of the shell 1. The other ends of the liquid inlet pipe 8 and the liquid return pipe 9 are connected to the early warning device 10. A distance sensor 1511 is also provided on the top surface of the shell 1.
[0016] The early warning device 10 includes an upper box body and a lower box body, wherein a liquid collecting bin 12, a connecting pipe 13, a flow meter 14, a sensor 15 and a valve switch 16 are arranged in the upper box body, the bottom of the liquid collecting bin 12 is connected to the liquid inlet pipe 8 through the connecting pipe 13, and a flow meter 14 and a valve switch 16 are installed between the two, and the sensor 15 is located in the liquid collecting bin 12 to detect the liquid level status in real time.
[0017] A liquid collecting bin 12, a connecting pipe 13, a flow meter 14, a sensor 15 and a valve switch 16 are arranged in the lower box body. The bottom of the liquid collecting bin 12 is connected to the liquid inlet pipe 8 through the connecting pipe 13, and a flow meter 14 and a valve switch 16 are installed between the two. The sensor 15 is located in the liquid collecting bin 12 to detect the liquid level status in real time.
[0018] The liquid collecting bin 12 is also provided with a liquid injection port 17 and an observation window 18. Liquid is poured in or discharged through the liquid injection port 17. At the same time, the liquid injection port 17 is arranged at the top of the liquid collecting bin 12 and can also be connected to the external atmosphere to facilitate the maintenance of air pressure balance and prevent the negative state from affecting the movement of the piston rod 5; the observation window 18 can directly observe the internal liquid level changes, which is convenient for later maintenance and replenishment of liquid.
[0019] The distance sensor 1511 is sealed and installed in the flexible clamping head 2, and the upper end is connected to the controller, and the controller is fixed on the top surface of the shell 1. The distance sensor 1511 is isolated from the pump body 4. The distance sensor 1511 detects the liquid level change in the pump body 4 so as to correct the error caused by the movement of the liquid level in real time, thereby accurately calculating the water level position.
[0020] The utility model drives the piston rod to move by the float, so that the liquid filled in the pump body enters or flows out of the liquid collecting bin through the pipeline. The process is monitored in real time by the flow meter and the sensor, so as to judge the moving distance of the float. After calculation, the distance change of the water level at the float can be obtained, so as to avoid direct contact between the monitoring and early warning device and water or gas to cause corrosion or explosion, and the safety performance is higher. Secondly, a distance sensor is also installed at the flexible clamping head to assist in verifying the moving distance of the piston column, which is convenient for correction processing. The structure is simple and easy to use.
[0021] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.
Claims
1. A coal seam floor water hazard monitoring and early warning device, characterized in that: The invention comprises a shell, which has a hollow structure. A flexible clamping head is installed at the upper end of the shell, and a fixed seat is installed at the lower end. A circular groove is provided on the bottom surface of the flexible clamping head, and the fixed seat is fastened to the bottom surface of the shell by bolts. A pump body is also provided between the flexible clamping head and the fixed seat. A piston column is slidably connected in the pump body, and a downward piston rod is fixedly connected to the lower end of the piston column. A circular hole is provided on the bottom surface of the shell, and the piston rod extends outward after passing through the circular hole. A float is also fixedly connected to the end of the piston rod. A liquid inlet pipe and a liquid return pipe connected to the pump body are also provided on one side of the shell, and the other ends of the liquid inlet pipe and the liquid return pipe are connected to the early warning device. A distance sensor is also provided on the top surface of the shell.
2. The coal seam floor water hazard monitoring and early warning device according to claim 1 is characterized by: The early warning device includes an upper box body and a lower box body. A liquid collecting bin, a connecting pipe, a flow meter, a sensor and a valve switch are arranged in the upper box body. The bottom of the liquid collecting bin is connected to the liquid inlet pipe through a connecting pipe, and a flow meter and a valve switch are installed between the two. The sensor is located in the liquid collecting bin to detect the liquid level status in real time.
3. A coal seam floor water hazard monitoring and early warning device according to claim 2, characterized in that: The lower box body is provided with a liquid collecting bin, a connecting pipe, a flow meter, a sensor and a valve switch. The bottom of the liquid collecting bin is connected to the liquid inlet pipe through the connecting pipe, and a flow meter and a valve switch are installed between the two. The sensor is located in the liquid collecting bin to detect the liquid level status in real time.
4. A coal seam floor water hazard monitoring and early warning device according to any one of claims 2 or 3, characterized in that: The liquid collecting bin is also provided with a liquid injection port and an observation window.
5. The coal seam floor water hazard monitoring and early warning device according to claim 1 is characterized by: The distance sensor is sealed and mounted in the flexible clamping head.