A cable trench water level monitoring alarm and automatic drainage device

Abstract

The present invention discloses a cable trench water level monitoring alarm and automatic drainage device, comprising: a master control device, the master control device comprising a background data monitoring machine and an audible and visual alarm arranged in a duty room, the background data monitoring machine being connected to the audible and visual alarm. The cable trench water level monitoring alarm and automatic drainage device described in the present invention makes up for the shortcomings of the prior art that the cable trench in a snow-covered and icy state cannot measure its liquid level height, resulting in erroneous signal transmission, and can also automatically pump water when water accumulates in the cable trench. In this way, the duty personnel can instantly understand the external conditions in the duty room by using the device. Even in the absence of duty personnel, the system of the present invention can automatically control the water level, thereby saving manpower, and reducing the damage to the submersible pump caused by changes in the internal environment of the cable trench, extending the service life of the submersible pump, and bringing better prospects for use.

Description

Technical Field

[0001] The invention relates to the field of cable trench drainage, and in particular to a cable trench water level monitoring alarm and automatic drainage device. Background Art

[0002] The cable trench is an underground pipeline used for laying and replacing power or telecommunications cable facilities. It is also the enclosure structure of the laid cable facilities. The cable trench is a covered channel. The cover must be opened when laying and repairing cables, which is cumbersome and inconvenient. When it rains or melts snow, the cable trench is prone to water accumulation. It is a common phenomenon in substation management that the water in the cable trench is difficult to drain. This is mainly due to the fact that the drainage method of individual substations is not standardized, and the development and changes of the surrounding environment are not fully considered in the site selection, leaving behind the historical problem that some cable trenches have no way to drain the water, and some have no way to drain the water. If the water in the cable trench is not drained in time, it will cause great safety hazards to the safe operation of the substation. On the one hand, it will make the equipment damp, affecting the insulation and operation stability. Excessive water in the cable trench will corrode the outer protective layer of the cable. Once the outer insulation layer is damaged, the live wire of the cable will come into contact with water, and a single-phase or three-phase grounding fault will occur.

[0003] There are still some problems with the existing substation cable trenches. If the following deficiencies can be solved, the substation cable trenches will have very high product reliability and product quality, and at the same time be able to ensure that they have a wider and more reliable market adaptability:

[0004] 1. Whenever the flood season comes, we must intensify the inspection and take strict precautions. When checking the water accumulation in the cable trench, we need to open multiple cable trench covers to see the specific situation. When inspecting multiple substations, we cannot conduct a comprehensive inspection of the cable trench in time, and there will be omissions. The entire defect handling process is inefficient, which causes many inconveniences to the maintenance of substations.

[0005] 2. The substation cable trench has too much water and cannot be drained by itself, so manual pumping is required. In case of heavy rainfall, staff must be dispatched to each substation to lift the heavy cable trench cover, install water pumps and drainage pipes in the rain, and drain the water manually. To this end, we propose a cable trench water level monitoring alarm and automatic drainage device. Summary of the invention

[0006] The main purpose of the present invention is to provide a cable trench water level monitoring alarm and automatic drainage device, which can effectively solve the problems in the background technology.

[0007] To achieve the above object, the technical solution adopted by the present invention is:

[0008] A cable trench water level monitoring alarm and automatic drainage device, comprising:

[0009] A master control device, the master control device includes a background data monitoring machine and an audible and visual alarm arranged in the duty room, the background data monitoring machine is connected to the audible and visual alarm;

[0010] A measurement and control box, wherein a controller and a distribution box are arranged inside the measurement and control box, the controller is connected to a background data monitoring machine via a wireless module, and the controller is connected to the distribution box via a wire; and

[0011] A cable trench is provided with a submersible pump, a detection device and an ice-breaking device inside the cable trench, and the submersible pump, the detection device and the ice-breaking device are all connected to the distribution box through cables.

[0012] Preferably, the detection device includes a temperature sensor and a water level sensor, the temperature sensor is arranged on the inner bottom surface of the cable trench, the water level sensor is movably installed inside the cable trench, and the water level sensor is provided with a pressure sensor for detecting water pressure.

[0013] Preferably, the ice-breaking device comprises a lifting mechanism and an impact device, the lifting mechanism is arranged on the inner wall of the cable trench, and the submersible pump and the impact device are both arranged on the lifting mechanism.

[0014] Preferably, the lifting mechanism includes a slide rail, a slide frame and a wire-releasing device, the slide rail is fixedly mounted on the inner wall of the cable trench by bolts, the slide frame is provided with a slide groove, and the slide frame is movably mounted on the slide rail through the slide groove.

[0015] Preferably, a cover plate is movably mounted on the upper outer surface of the cable trench, the wire-releasing device comprises a motor seat, a motor and a winding drum, the motor seat is fixedly mounted on the upper outer surface of the cover plate, the motor is fixedly mounted on the motor seat by bolts, and the winding drum is connected to the output shaft of the motor.

[0016] Preferably, a mounting plate and a suspension ring are fixedly mounted on an outer surface of one side of the slide, the suspension ring is located at the upper end of the mounting plate, and the rope on the winding drum passes through the cover plate and is connected to the suspension ring.

[0017] Preferably, the submersible pump is arranged on the upper outer surface of the mounting plate, a drain pipe is provided on the drain outlet of the submersible pump, one end of the drain pipe passes through the slide and extends to one side of the cable trench, and a suction pipe is provided on the water inlet of the submersible pump, one end of the suction pipe passes through the mounting plate.

[0018] Preferably, a limiting frame is fixedly installed on the outer surface of the lower end of the mounting plate, a mounting ring is fixedly installed on the outer surface of the lower end of the limiting frame, an electric heating ring is fixedly installed on the lower end of the mounting ring, and a heating copper tube is arranged inside the electric heating ring.

[0019] Preferably, the impact device includes an electric push rod, a fixed bar and a movable tube, the electric push rod is arranged on the upper outer surface of the mounting plate, the telescopic end of the electric push rod passes through the mounting plate and is connected to the fixed bar, and the movable tube is installed on the lower outer surface of the fixed bar.

[0020] Preferably, a limiting groove is provided on the inner surface of the movable tube, a limiting strip is provided on the outer surface of the water pumping tube, the limiting groove on the movable tube is slidably connected with the limiting strip on the water pumping tube, and an impact head is fixedly installed on the outer surface of the lower end of the movable tube.

[0021] Compared with the prior art, the present invention provides a cable trench water level monitoring alarm and automatic drainage device, which has the following beneficial effects:

[0022] 1. When the present invention is used, the operator can immediately understand the external conditions in the duty room, and the water level can be automatically controlled even when there is no duty personnel, thereby saving manpower and reducing the workload of the operator;

[0023] 2. The present invention can detect the water temperature and water pressure in the cable trench, and has dual monitoring, which has better monitoring effect, and can facilitate people to directly judge the internal state of the cable trench, so that people can make different responses according to different situations;

[0024] 3. The lifting mechanism is set up to change the height of the submersible pump when in use. When not in use, the submersible pump is located on the water surface, which reduces the damage to the submersible pump caused by the changes in the internal environment of the cable trench, prolongs the service life of the submersible pump, and makes it convenient for people to take out the submersible pump and inspect and maintain the submersible pump;

[0025] 4. Through the impact device that is set up, the impact device can impact the ice surface in winter and quickly break the ice surface, so that the cable trench water level monitoring alarm and automatic drainage device can be used in winter, and the use effect is better. Moreover, the structure of the entire cable trench water level monitoring alarm and automatic drainage device is simple, the installation is relatively convenient, it is easy to implement, the use effect is better, and it is more practical.

[0026] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of a cable trench water level monitoring alarm and automatic drainage device of the present invention;

[0028] Figure 2 This is an internal structural diagram of a cable trench in a cable trench water level monitoring alarm and automatic drainage device of the present invention;

[0029] Figure 3 A cable trench water level monitoring alarm and automatic drainage device according to the present invention Figure 2 A magnified view of the structure in the middle;

[0030] Figure 4 This is a structural diagram of a slide in a cable trench water level monitoring alarm and automatic drainage device of the present invention;

[0031] Figure 5 This is a structural diagram of a limit frame in a cable trench water level monitoring alarm and automatic drainage device of the present invention;

[0032] Figure 6 This is a structural diagram of an installation ring in a cable trench water level monitoring alarm and automatic drainage device of the present invention;

[0033] Figure 7 The present invention is a structural diagram of a fixing bar in a cable trench water level monitoring alarm and automatic drainage device.

[0034] In the figure: 1. Background data monitoring machine; 2. Sound and light alarm; 3. Measurement and control box; 4. Controller; 5. Distribution box; 6. Cable trench; 7. Submersible pump; 8. Ice breaking device; 9. Temperature sensor; 10. Water level sensor; 11. Pressure sensor; 12. Slide rail; 13. Slide; 14. Cover plate; 15. Motor; 16. Winding drum; 17. Mounting plate; 18. Suspension ring; 19. Limiting frame; 20. Mounting ring; 21. Electric heating ring; 22. Heating copper tube; 23. Electric push rod; 24. Fixing bar; 25. Movable tube; 26. Limiting groove; 27. Impact head. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] A cable trench water level monitoring alarm and automatic drainage device, such as Figure 1-7 As shown, including:

[0038] The master control equipment includes a background data monitoring machine 1 and an audible and visual alarm 2 arranged in the duty room, and the background data monitoring machine 1 is connected to the audible and visual alarm 2;

[0039] A measurement and control box 3, wherein a controller 4 and a distribution box 5 are arranged inside the measurement and control box 3, wherein the controller 4 is connected to the background data monitoring machine 1 through a wireless module, and the controller 4 is connected to the distribution box 5 through a wire; and

[0040] A cable trench 6, inside of which a submersible pump 7, a detection device and an ice-breaking device 8 are arranged, and the submersible pump 7, the detection device and the ice-breaking device 8 are all connected to the distribution box 5 through cables.

[0041] The detection device includes a temperature sensor 9 and a water level sensor 10. The temperature sensor 9 is arranged on the inner bottom surface of the cable trench 6. The water level sensor 10 is movably installed inside the cable trench 6. The water level sensor 10 is provided with a pressure sensor 11 for detecting water pressure.

[0042] The temperature sensor 9 detects the temperature of the water at the bottom of the cable trench 6 to determine whether the bottom of the cable trench 6 is frozen. The water level sensor 10 is set on the warning line of the cable trench 6. The pressure sensor 11 detects the water pressure at the warning line to determine whether there is snow or ice in the water at the warning line.

[0043] The present invention can also use a high-performance, low-power single-chip microcomputer to automatically control each part to reduce the overall power consumption of the device; the timing part completes the time setting of the monitoring cycle. When the timing time is reached, the self-control circuit inside the instrument will automatically select each analog signal in turn, complete the amplification and A / D conversion, and store the digital signal obtained after the A / D conversion in the RAM (data memory) for storage. The single-chip microcomputer automatically controls the contactor power supply of the submersible pump 7 to turn on or off according to the set algorithm and water level threshold, and starts the communication program at the same time, and sends the result data in the memory to the background data monitoring machine 1 and the sound and light alarm 2 according to the instructions of the communication program, so as to realize the function of alarm prompt.

[0044] The ice-breaking device 8 comprises a lifting mechanism and an impact device. The lifting mechanism is arranged on the inner wall of the cable trench 6. The submersible pump 7 and the impact device are both arranged on the lifting mechanism.

[0045] The lifting mechanism includes a slide rail 12, a slide frame 13 and a wire-releasing device. The slide rail 12 is fixedly mounted on the inner wall of the cable trench 6 by bolts. A slide groove is provided on the slide frame 13, and the slide frame 13 is movably mounted on the slide rail 12 through the slide groove.

[0046] The slide 13 moves up and down along the slide rail 12. When not in use, the submersible pump 7 and the impact device are located above the water surface, and ice on the water surface will not affect the submersible pump 7 and the impact device.

[0047] A cover plate 14 is movably mounted on the upper outer surface of the cable trench 6. The wire-releasing device includes a motor seat, a motor 15 and a winding drum 16. The motor seat is fixedly mounted on the upper outer surface of the cover plate 14. The motor 15 is fixedly mounted on the motor seat by bolts. The winding drum 16 is connected to the output shaft of the motor 15.

[0048] A mounting plate 17 and a suspension ring 18 are fixedly mounted on the outer surface of one side of the slide 13 . The suspension ring 18 is located at the upper end of the mounting plate 17 . The rope on the winding drum 16 passes through the cover plate 14 and is connected to the suspension ring 18 .

[0049] When in use, the motor 15 is started, and the motor 15 drives the winding drum 16 to rotate, so as to lower the rope or reel in the rope, and realize the up and down movement of the slide 13.

[0050] The submersible pump 7 is arranged on the upper outer surface of the mounting plate 17. A drain pipe is arranged on the drain outlet of the submersible pump 7. One end of the drain pipe passes through the slide 13 and extends to one side of the cable trench 6. A suction pipe is arranged on the water inlet of the submersible pump 7. One end of the suction pipe passes through the mounting plate 17.

[0051] When in use, the slide 13 descends, the water pumping pipe and the movable pipe 25 are both located below the water surface, water flows from the movable pipe 25 into the water pumping pipe, and finally is discharged from the drain pipe.

[0052] A limit frame 19 is fixedly mounted on the outer surface of the lower end of the mounting plate 17 , a mounting ring 20 is fixedly mounted on the outer surface of the lower end of the limit frame 19 , an electric heating ring 21 is fixedly mounted on the lower end of the mounting ring 20 , and a heating copper tube 22 is arranged inside the electric heating ring 21 .

[0053] The impact device includes an electric push rod 23, a fixed bar 24 and a movable tube 25. The electric push rod 23 is arranged on the upper outer surface of the mounting plate 17. The telescopic end of the electric push rod 23 passes through the mounting plate 17 and is connected to the fixed bar 24. The movable tube 25 is installed on the lower outer surface of the fixed bar 24.

[0054] When used in winter or extremely cold weather, the electric heating ring 21 contacts the ice surface, and the heat generated by the heating copper tube 22 diffuses to the electric heating ring 21 to melt the ice surface. At the same time, the electric push rod 23 is started to drive the fixed bar 24 to move, so that the impact head 27 at the lower end of the movable tube 25 impacts the ice surface, pierces the ice surface and then pumps out water.

[0055] A limiting groove 26 is provided on the inner surface of the movable tube 25, and a limiting strip is provided on the outer surface of the water pumping pipe. The limiting groove 26 on the movable tube 25 is slidably connected with the limiting strip on the water pumping pipe to prevent the movable tube 25 and the water pumping pipe from being offset. An impact head 27 is fixedly installed on the outer surface of the lower end of the movable tube 25. The impact head 27 is truncated cone-shaped and is a hollow structure that passes through from top to bottom.

[0056] It should be noted that the present invention is a cable trench water level monitoring alarm and automatic drainage device. When in use, as the water level rises to the set value, the water level sensor 10 is turned on, and the signal collected by the water level sensor 10 is transmitted to the controller 4, and the controller 4 feeds back to the background data monitoring machine 1, and the background data monitoring machine 1 controls the sound and light alarm 2 to start an alarm, prompting the duty personnel to have a water level warning. At the same time, the background data monitoring machine 1 controls the controller 4 to start the motor 15 to release the line, and the slide 13 descends so that the suction pipe of the submersible pump 7 enters the water surface, and the submersible pump 7 drains water outward. When the water level drops, the water level sensor 10 is disconnected, and the background data monitoring machine 1 uploads a signal to reset, and controls the controller 4 to shut down the submersible pump 7, so that the duty personnel can immediately understand the external situation in the duty room;

[0057] In winter or extremely cold weather, when water in the cable trench 6 freezes or snow accumulates, the submersible pump 7 should not be operated at this time, and the temperature sensor 9 at the bottom of the cable trench 6 is required to judge the on-site environment;

[0058] When the temperature sensor 9 detects that the external temperature is less than or equal to 0 degrees, the cable trench 6 is covered with snow or ice. At this time, the logic element in the controller 4 makes a judgment, prohibits the submersible pump 7 from operating, and only sends an alarm signal to the background data monitoring machine 1;

[0059] When the temperature sensor 9 detects that the external temperature is greater than 0 degrees, and at the same time, the pressure of the pressure sensor 11 on the water level sensor 10 increases, indicating that there is a certain thickness of snow or ice in the cable trench 6, at this time, the controller 4 controls the motor 15 to release the wire, and the slide 13 descends to contact the ice surface, and at the same time, the heating copper tube 22 inside the electric heating ring 21 starts to heat up, and the electric push rod 23 starts, and drives the movable tube 25 to reciprocate up and down through the fixed bar 24, so that the impact head 27 on the movable tube 25 impacts the ice surface, so that the movable tube 25 enters the water for drainage; at the same time, the alarm signal is sent to the background data monitoring machine 1, and the background data monitoring machine 1 controls the sound and light alarm 2 to remind the on-duty personnel;

[0060] When the present invention is used, the operator can immediately understand the external conditions in the duty room, and the water level can be automatically controlled even when there is no duty personnel, thereby saving manpower and reducing the workload of the operator;

[0061] The present invention can detect the water temperature and water pressure in the cable trench 6, and has dual monitoring, which has a better monitoring effect, and can facilitate people to directly judge the internal state of the cable trench 6, so that people can make different responses according to different situations.

[0062] By means of the provided lifting mechanism, the height of the submersible pump 7 can be changed when in use, and the submersible pump 7 is located on the water surface when not in use, thereby reducing the damage to the submersible pump 7 caused by the change of the internal environment of the cable trench 6, extending the service life of the submersible pump 7, and making it convenient for people to take out the submersible pump 7, so as to facilitate people to inspect and maintain the submersible pump 7;

[0063] By setting up the impact device, the impact device can impact the ice surface in winter and quickly break the ice surface, so that the cable trench 6 water level monitoring alarm and automatic drainage device can be used in winter, and the use effect is better. Moreover, the structure of the entire cable trench water level monitoring alarm and automatic drainage device is simple, the installation is relatively convenient, it is easy to implement, the use effect is good, and it is more practical.

[0064] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A cable trench water level monitoring alarm and automatic drainage device, comprising: A master control device, the master control device comprising a background data monitoring machine (1) and an audible and visual alarm (2) arranged in a duty room, the background data monitoring machine (1) being connected to the audible and visual alarm (2); A measurement and control box (3), wherein a controller (4) and a distribution box (5) are arranged inside the measurement and control box (3), wherein the controller (4) is connected to a background data monitoring machine (1) via a wireless module, and the controller (4) is connected to the distribution box (5) via a wire; and A cable trench (6), wherein a submersible pump (7), a detection device and an ice-breaking device (8) are arranged inside the cable trench (6), and the submersible pump (7), the detection device and the ice-breaking device (8) are all connected to the distribution box (5) via cables; The ice-breaking device (8) comprises a lifting mechanism and an impact device, wherein the lifting mechanism is arranged on the inner wall of the cable trench (6), and the submersible pump (7) and the impact device are both arranged on the lifting mechanism; The lifting mechanism comprises a slide rail (12), a slide frame (13) and a wire-releasing device, wherein the slide rail (12) is fixedly mounted on the inner wall of the cable trench (6) by means of bolts, and a slide groove is provided on the slide frame (13), and the slide frame (13) is movably mounted on the slide rail (12) through the slide groove; A cover plate (14) is movably mounted on the outer surface of the upper end of the cable trench (6); the wire-releasing device comprises a motor seat, a motor (15) and a winding drum (16); the motor seat is fixedly mounted on the outer surface of the upper end of the cover plate (14); the motor (15) is fixedly mounted on the motor seat by bolts; and the winding drum (16) is connected to the output shaft of the motor (15); A mounting plate (17) and a suspension ring (18) are fixedly mounted on an outer surface of one side of the slide (13); the suspension ring (18) is located at the upper end of the mounting plate (17); and the rope on the winding drum (16) passes through the cover plate (14) and is connected to the suspension ring (18); The submersible pump (7) is arranged on the outer surface of the upper end of the mounting plate (17); a drainage pipe is arranged on the drainage outlet of the submersible pump (7); one end of the drainage pipe penetrates the slide (13) and extends to one side of the cable trench (6); a water suction pipe is arranged on the water inlet of the submersible pump (7); one end of the water suction pipe penetrates the mounting plate (17); A limiting frame (19) is fixedly mounted on the outer surface of the lower end of the mounting plate (17); a mounting ring (20) is fixedly mounted on the outer surface of the lower end of the limiting frame (19); an electric heating ring (21) is fixedly mounted on the lower end of the mounting ring (20); a heating copper tube (22) is arranged inside the electric heating ring (21); The impact device comprises an electric push rod (23), a fixing bar (24) and a movable tube (25); the electric push rod (23) is arranged on the upper outer surface of the mounting plate (17); the telescopic end of the electric push rod (23) passes through the mounting plate (17) and is connected to the fixing bar (24); and the movable tube (25) is installed on the lower outer surface of the fixing bar (24).

2. A cable trench water level monitoring alarm and automatic drainage device according to claim 1, characterized in that: The detection device comprises a temperature sensor (9) and a water level sensor (10); the temperature sensor (9) is arranged on the inner bottom surface of the cable trench (6); the water level sensor (10) is movably installed inside the cable trench (6); and a pressure sensor (11) for detecting water pressure is arranged on the water level sensor (10).

3. A cable trench water level monitoring alarm and automatic drainage device according to claim 2, characterized in that: The inner surface of the movable tube (25) is provided with a limiting groove (26), the outer surface of the water pumping tube is provided with a limiting strip, the limiting groove (26) on the movable tube (25) is slidably connected with the limiting strip on the water pumping tube, and an impact head (27) is fixedly mounted on the outer surface of the lower end of the movable tube (25).

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