Water pump house slim well liquid level detection device
Through the mechanical level detection device, the combination of level float balls and heavy hammers and combined with camera monitoring, the problem of inaccurate level detection of underground small wells is solved, accurate display and automatic alarm are achieved, and the safety of coal mine drainage system and unattended management are ensured.
Patent Information
- Application Number
- CN202422859856.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-11-22
AI Technical Summary
In the prior art, the underground small well level detection device is easily affected by coal sludge silt, resulting in inaccurate detection and inaccurate control of the start and stop of the main drainage pump, which poses a risk of misoperation or leakage, affecting safety and production.
The mechanical level detection device is adopted, including a level float, a fixed pulley, a wire rope, a heavy hammer, a marking rod, a needle and a camera. The combination of the level float and a heavy hammer is used to drive the indicator needle to move on the marking rod through the wire rope. Combined with the real-time monitoring of the camera and intelligent image recognition, the accurate display and automatic alarm of the liquid level are achieved.
Accurate display and automatic monitoring of the liquid level of the small well, avoiding erroneous operations caused by inaccurate liquid level detection, ensuring the safe operation of the main drainage pump system, and supporting intelligent management of unattended underground water.
Smart Images
Figure CN223283719U_ABST
Abstract
Description
Technical Field
[0001] The utility model discloses a liquid level detection device for a small well in a water pump room, belonging to the technical field of liquid level detection devices. Background Art
[0002] With the development of intelligent mining, many positions in the coal mining industry have become unmanned, and the trend is towards unmanned and automated operations. As coal mining faces deepen, drainage becomes a crucial issue for miners. With the changing natural environment in recent years and the sudden increase in rainfall during the rainy season, underground drainage operations have become particularly important, not only as a line of defense to ensure production, but also as a line of defense to ensure safety. The operation of the main drainage pump is crucial in underground drainage operations. The normal operation of the main drainage pump is currently mainly controlled remotely from the ground. Accurately controlling the liquid level in the underground water tank is a pressing issue.
[0003] Research has revealed that the most critical factors limiting water pump operation are the pump's condition, the coal sludge content in the well, the liquid level monitoring, the integrity of each valve, and finally, the functioning of the starter switch. A single-use, single-standby, and single-maintenance system for the pump is generally sufficient, as are the associated valves and starter switches. Therefore, accurately monitoring the liquid level in the well and water tank is crucial.
[0004] For the main bin and auxiliary bin, since their capacity is large and the bins are cleared every year before the rainy season, there is not much coal slime in the main bin and auxiliary bin. The use of electronic liquid level gauges can fully meet the requirements for water tank liquid level detection, and the liquid level is accurate.
[0005] Currently, electronic level gauges are used for small wells. Based on the liquid level data fed back to the main controller by the electronic level gauge, the main drainage pump is started and stopped to control the liquid level in the small well. However, electronic level gauges are easily restricted by external factors and can only be used when the water quality is good. The underground water tank mainly contains sewage, which has a lot of coal sludge sediment. After entering the small well, the coal sludge accumulates at the bottom of the small well. When the coal sludge accumulates to a certain height, it will bury the electronic level gauge, causing data distortion. The small well liquid level cannot be accurately detected, and the main drainage pump cannot be accurately controlled. This can easily lead to misoperation or omission, and the liquid level may be too high, causing the ventilation section to be blocked, resulting in gas exceeding the limit. In this case, the coal sludge in the small well needs to be cleaned. After cleaning, the electronic level gauge is difficult to reset, and the detection results will still be inaccurate, which will also cause the above-mentioned problems. Therefore, there is currently a lack of a liquid level detection device that can accurately detect the liquid level in the small well. Utility Model Content
[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a mechanical liquid level detection device that can accurately display the liquid level in a small well.
[0007] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a liquid level detection device for a small well in a water pump room, comprising a liquid level float, a fixed pulley, a steel wire rope, a weight, a marking rod, an indicator needle and a camera; the liquid level float floats on the liquid surface in the small well; two fixed pulleys are respectively installed on the inner walls on both sides of the small well; one end of the steel wire rope is connected to the liquid level float, and the other end is connected to the weight suspended above the liquid surface after passing through the two fixed pulleys; the two ends of the marking rod are fixed to the inner walls on both sides of the small well; a liquid level indicating area is provided in the middle of the marking rod; the indicator needle is fixed to the middle of the steel wire rope and is located directly in front of the liquid level indicating area on the marking rod; the camera is installed directly in front of the marking rod, facing the indicator needle and the liquid level indicating area; the camera is connected to the host signal in the control room;
[0008] The weight of the weight hammer is less than the weight of the vacuum float.
[0009] Preferably, the liquid level indicating area includes a safe water level indicating area, a warning water level indicating area and a dangerous water level indicating area. The safe water level indicating area is located in the middle of the marking pole, the two warning water level indicating areas are located on both sides of the safe water level indicating area, and the two dangerous water level indicating areas are located outside the two warning water level indicating areas.
[0010] Preferably, the liquid level float is a vacuum liquid level float.
[0011] Preferably, the density of the weight is greater than the density of the liquid in the small well.
[0012] Preferably, the diameter of the steel wire rope is 4 mm.
[0013] Preferably, an image intelligent recognition module and an alarm module are provided inside the host, the camera is connected to the image intelligent recognition module, and the image intelligent recognition module is connected to the alarm module.
[0014] The liquid in the small well is sewage containing coal slime flowing in from the main and auxiliary water tanks.
[0015] Compared with the prior art, the present invention has the following beneficial effects.
[0016] 1. The liquid level display part of the utility model is fully mechanized. The liquid level float and the weight hammer are coordinated. It is not affected by the water quality of the liquid in the small well. There is no problem of no display or inaccurate display of the liquid level when an electrical problem occurs. It can accurately display the liquid level in the small well, eliminate missed operations and misoperations caused by inaccurate liquid level display, and ensure the safe operation of the main drainage pump system.
[0017] 2. In the present invention, the camera is located in front of the marking pole, takes a picture of the position of the indicator needle, and uploads it to the host computer. The host computer displays the image, and the staff monitors the water level of the small well based on the image, realizing unmanned operation in the well.
[0018] 3. The utility model is simple and convenient to operate, highly practical, safer and more effective, more conducive to the safe development of coal mines, and improves the safety factor of coal mine water pump operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0020] Figure 1 It is a structural diagram of the present utility model.
[0021] Figure 2 This is a schematic diagram of the position of the camera in the present invention.
[0022] Figure 3 Schematic diagram of the equipment layout in the main drainage pump room.
[0023] In the figure: 1 is the liquid level float, 2 is the fixed pulley, 3 is the wire rope, 4 is the heavy hammer, 5 is the marking rod, 6 is the indicator needle, 7 is the camera, 8 is the liquid level indication area, 81 is the safe water level indication area, 82 is the warning water level indication area, 83 is the dangerous water level indication area, 9 is the main engine, 10 is the water pump, 11 is the small well, 12 is the main water tank entrance, 13 is the auxiliary water tank entrance, and 14 is the connecting valve. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present invention are clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0025] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention. It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from other entities, and do not necessarily require or imply any actual relationship or order between these entities.
[0026] like Figure 3 As shown, three water pumps 10 are installed in the main drainage pump room, one for use, one for standby and one for maintenance. The small well 11 is connected with the main and auxiliary water tanks. The sewage is discharged from the working surface to the main and auxiliary water tanks, and then flows into the small well 11 through the connecting valves 14 at the main water tank inlet 12 and the auxiliary water tank inlet 13. When drainage is needed, turn on the water pump 10 to pump out the water in the small well 11, and at the same time, the sewage in the main and auxiliary water tanks is also pumped out and discharged to the ground.
[0027] The utility model provides the following embodiments.
[0028] like Figure 1 、 Figure 2 As shown, a liquid level detection device for a small well in a water pump room includes a liquid level float 1, a fixed pulley 2, a wire rope 3, a weight 4, a marking rod 5, an indicator needle 6 and a camera 7. The liquid level float 1 floats on the liquid surface in the small well 11, and two fixed pulleys 2 are respectively installed on the inner walls on both sides of the small well 11. One end of the wire rope 3 is connected to the liquid level float 1, and the other end is connected to the weight 4 suspended above the liquid surface after passing through the two fixed pulleys 2. Both ends of the marking rod 5 are fixed to the inner walls on both sides of the small well 11. A liquid level indicating area 8 is provided in the middle of the marking rod 5. The indicator needle 6 is fixed to the middle of the wire rope 3 and is located directly in front of the liquid level indicating area 8 on the marking rod 5. The camera 7 is installed directly in front of the marking rod 5, facing the indicator needle 6 and the liquid level indicating area 8. The camera 7 is connected to the host 9 in the control room by signal.
[0029] The weight of the weight hammer 4 is smaller than the weight of the vacuum float 1 .
[0030] The liquid level indication area 8 includes a safe water level indication area 81, a warning water level indication area 82, and a dangerous water level indication area 83. The safe water level indication area 81 is located in the middle of the marking rod 5, the two warning water level indication areas 82 are located on both sides of the safe water level indication area 81, and the two dangerous water level indication areas 83 are located outside the two warning water level indication areas 82. Of the two warning water level indication areas 82, the one close to the weight 4 is the high water level warning area, and the one close to the liquid level float 1 is the low water level warning area. Of the two dangerous water level indication areas 83, the one close to the weight 4 is the high water level danger area, and the one close to the liquid level float 1 is the low water level danger area.
[0031] The safe water level indication area 81 can be painted green and marked as safe water level, the two warning water level indication areas 82 can be painted yellow and marked as warning water level, and the two dangerous water level indication areas 83 can be painted red and marked as dangerous water level.
[0032] The liquid level float 1 is a vacuum liquid level float.
[0033] The density of the weight 4 is greater than the density of the liquid in the well 11 .
[0034] The diameter of the steel wire rope 3 is 4 mm.
[0035] An image intelligent recognition module and an alarm module are provided inside the host 9 , the camera is connected to the image intelligent recognition module, and the image intelligent recognition module is connected to the alarm module.
[0036] The liquid in the small well 11 is sewage containing coal slime flowing in from the main and auxiliary water tanks.
[0037] In the present invention, the liquid level float 1 is responsible for rising and falling with the liquid level; the fixed pulley 2 is responsible for supporting the wire rope 3 so that the wire rope 3 can slide flexibly; the wire rope 3 is responsible for connecting the liquid level float 1 and the weight 4, and driving the indicator needle 6 to move; the weight 4 is responsible for coordinating the rise and fall of the liquid level float 1, and its weight is less than the weight of the liquid level float 1. The liquid level float 1 can drive the weight 4 to rise and fall when the liquid level rises and falls, and can keep the wire rope 3 straight. When the liquid level float 1 rises with the liquid level, the weight 4 falls, and the wire rope 3 drives the indicator needle 6 to move to the high water level area. When the liquid level float 1 falls with the liquid level, the weight 4 rises, and the wire rope 3 drives the indicator needle 6 to move to the low water level area. In addition, the density of the weight 4 is greater than the density of the liquid in the small well 11. In this way, even if the liquid When the level rises, the sinking of the heavy hammer 4 into the liquid does not affect the effect of the utility model; the marking rod 5 is responsible for carrying the liquid level indication area 8, and cooperates with the indicator needle 6 to accurately display the liquid level situation; the indicator needle 6 is responsible for indicating the liquid level situation; the camera 7 is responsible for recording the liquid level situation and transmitting the image signal to the host 9; the host 9 can display the picture taken by the camera 7, and the staff monitors the liquid level in the small well 11 through the picture to control the start and stop of the main drainage pump; in addition, an image intelligent recognition module and an alarm module can be set in the host 9. When the indicator needle 6 indicates that the liquid level has reached the high water level warning area or the low water level warning area, an automatic alarm is issued. When the indicator needle 6 indicates that the liquid level has reached the high water level danger area or the low water level danger area, the alarm level is increased. In this way, automatic monitoring is achieved.
[0038] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.
Claims
1. A pump room small well liquid level detection device, characterized by: The apparatus comprises a liquid level float (1), a fixed pulley (2), a steel wire rope (3), a weight (4), a marking rod (5), an indicator needle (6) and a camera (7). The liquid level float (1) floats on the liquid surface in a small well (11). Two fixed pulleys (2) are respectively installed on the inner walls of both sides of the small well (11). One end of the steel wire rope (3) is connected to the liquid level float (1), and the other end passes around the two fixed pulleys (2) and is connected to the weight (4) suspended above the liquid surface. The two ends of the marking rod (5) are fixed on the inner walls of both sides of the small well (11), a liquid level indicating area (8) is provided in the middle of the marking rod (5), an indicating needle (6) is fixed in the middle of the wire rope (3), and is located in front of the liquid level indicating area (8) on the marking rod (5), a camera (7) is installed in front of the marking rod (5), facing the indicating needle (6) and the liquid level indicating area (8), and the camera (7) is connected to the host (9) in the control room by signal; The weight of the weight hammer (4) is less than the weight of the liquid level float (1).
2. A pump room small well liquid level detection device according to claim 1, characterized in that: The liquid level indication area (8) comprises a safe water level indication area (81), a warning water level indication area (82) and a dangerous water level indication area (83); the safe water level indication area (81) is located in the middle of the marking rod (5); the two warning water level indication areas (82) are located on both sides of the safe water level indication area (81); and the two dangerous water level indication areas (83) are located outside the two warning water level indication areas (82).
3. A pump room small well liquid level detection device according to claim 1 or 2, characterized in that: The liquid level float (1) is a vacuum liquid level float.
4. A pump room small well liquid level detection device according to claim 1 or 2, characterized in that: The density of the weight (4) is greater than the density of the liquid in the small well (11).
5. A pump room small well liquid level detection device according to claim 1 or 2, characterized in that: The diameter of the steel wire rope (3) is 4 mm.
6. A pump room small well liquid level detection device according to claim 1 or 2, characterized in that: An image intelligent recognition module and an alarm module are arranged inside the host (9), the camera is connected to the image intelligent recognition module, and the image intelligent recognition module is connected to the alarm module.
7. A pump room small well liquid level detection device according to claim 1 or 2, characterized in that: The liquid in the small well (11) is sewage containing coal slime flowing in from the main and auxiliary water tanks.