A flood-proof vortex well

Abstract

The present invention provides a flood-proof vortex well, comprising a vortex well, a water diversion main pipe, an on-site power distribution box and a lifting pump, wherein the bottom of the vortex well is a sedimentation tank; a plurality of lifting pumps are arranged above the sedimentation tank, the water diversion main pipe can replenish water into the lifting pump, the lifting pump is connected to the on-site power distribution box through a circuit, the water inlet of the lifting pump extends into the sedimentation tank, and the lifting pump can pump water out of the sedimentation tank. The flood-proof vortex well has a simple structure and is easy to use. The flood-proof vortex well has a variety of emergency treatment methods to control the water level to prevent flooding.

Description

Technical Field

[0001] The invention relates to the technical field of vortex well safety protection, and in particular to a flood-proof vortex well. Background Art

[0002] The vortex well on the wide and thick plate rolling line of Laigang is a vortex sedimentation tank. A part of the turbid water on the rolling line flushes the iron oxide scale in the ditch into the vortex well, where it settles and then is grabbed out with a grab bucket; the other part of the turbid water is used for descaling, roller cooling, and roller cooling. The amount of turbid water used is balanced with the total water supply of the lifting pump in the vortex well. When the main lifting pump fails during operation, its water supply capacity is weakened or cannot supply water. When the operator fails to find it in time or the standby lifting pump fails to start the pump and fill the water successfully, since the lifting pump is a sealless self-priming pump, the lifting pump must meet certain conditions to start the pump and start the pump to fill the water slowly, which makes the water level of the turbid water in the vortex well rise quickly. After the turbid water floods the lifting pump motor, the lifting pump cannot work, which will cause the water system of the entire rolling line to be paralyzed, the rolling line downtime is relatively long, and the economic loss is large. Secondly, when operating the standby lift pump on-site in case of flooding, due to the water on the ground, the distribution box used to start the pump is near the lift pump, and the operator is in danger of electric shock. It is also inconvenient to check and add water to the pump, which poses a high safety risk. Thirdly, when the production is stopped for maintenance, the flow regulating pipeline used for regulating the flow of the lift pump in production is welded to the middle and lower part of the water outlet main of the lift pump, and the electric valve in the flow regulating pipeline has been sealed for a long time and is not closed tightly, causing the water in the water outlet main of the lift pump and the pump cavity of the lift pump to be emptied. After the maintenance is completed and production resumes, the lift pump cannot be started normally, and the water backflow in the vortex well is fast, causing the well to flood. Summary of the invention

[0003] The purpose of the present invention is to provide a flood-proof vortex well, which has a simple structure and is easy to use. The flood-proof vortex well has multiple emergency treatment methods to control the water level to prevent flooding.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] A flood prevention vortex well comprises a vortex well, a water diversion main pipe, an on-site power distribution box and a lifting pump, wherein the bottom of the vortex well is a sedimentation tank; a plurality of lifting pumps are arranged above the sedimentation tank, the water diversion main pipe can replenish water into the lifting pumps, the lifting pumps are connected to the on-site power distribution box through a circuit, the water inlet of the lifting pump extends into the sedimentation tank, and the lifting pump can pump water out of the sedimentation tank.

[0006] Furthermore, in the above-mentioned flood-proof vortex well, a negative first floor and a negative second floor are arranged in the vortex well and located above the sedimentation tank, the negative first floor is located above the negative second floor, the ground of the negative first floor is the top plate of the negative second floor, the ground of the negative second floor is located above the sedimentation tank, the lifting pump is arranged on the ground of the negative second floor; the on-site distribution box is arranged under the top plate of the negative second floor.

[0007] Furthermore, in the above-mentioned flood-proof vortex well, two water diversion branch pipes are arranged between each of the lifting pumps and the water diversion main pipe, and the lifting pumps are connected to the water diversion main pipe through the two water diversion branch pipes respectively. One of the water diversion branch pipes is provided with a local water diversion ball valve, and the local water diversion ball valve is located in the second negative floor; a remote water diversion ball valve is provided on the other water diversion branch pipe, and the remote water diversion ball valve is located in the first negative floor.

[0008] Furthermore, in the above-mentioned anti-flooding vortex well, the lift pump is connected to one end of an exhaust pipe, and the other end of the exhaust pipe is placed in the vortex well; preferably, an exhaust ball valve is provided on the exhaust pipe; preferably, the exhaust pipe is a hose.

[0009] Furthermore, in the above-mentioned flood-proof vortex well, a long-axis deep-well pump is also provided in the vortex well, the motor of the long-axis deep-well pump is arranged on the negative first floor, the bottom end of the transmission long shaft of the long-axis deep-well pump extends below the ground of the negative second floor, an impeller is arranged at the bottom end of the transmission long shaft, the impeller is located in the sedimentation tank, and the water lifting pipe of the long-axis deep-well pump is arranged on the negative first floor; a water accumulation alarm is arranged on the ground of the negative second floor, and the long-axis deep-well pump is self-starting interlocked with the water accumulation alarm; when the liquid level of the turbid ring water in the sedimentation tank rises to 6 meters, the water accumulation alarm alarms, and the long-axis deep-well pump automatically starts and pumps water.

[0010] Furthermore, in the above-mentioned flood prevention vortex well, the distance between the water accumulation alarm and the ground of the second negative floor is 1cm-2cm.

[0011] Furthermore, in the above-mentioned flood-proof vortex well, the water main is supplied with water separately by an industrial new water pipeline.

[0012] Furthermore, in the above-mentioned flood-proof vortex well, a liquid level detection alarm is also included. The negative second floor is provided with a liquid level observation port, and the liquid level detection alarm is arranged at the liquid level observation port; when the vortex well is working normally, the liquid level height of the turbid circulating water in the sedimentation tank is 4m; when the liquid level of the turbid circulating water in the sedimentation tank rises to 4.5m, the liquid level detection alarm alarms a high liquid level; when the liquid level of the turbid circulating water in the sedimentation tank rises to 5m, the liquid level detection alarm alarms a high-high liquid level.

[0013] Furthermore, in the above-mentioned flood-proof vortex well, there are multiple lifting pumps, and the water outlets of the multiple lifting pumps are connected to the water outlet main, the water outlet main is connected to the flow regulating pipe, the flow regulating pipe is connected to the upper end of the water outlet main, and an electric valve is arranged on the flow regulating pipe, and the lifting pump is a sealless self-priming pump.

[0014] Furthermore, in the above-mentioned flood prevention vortex well, the water diversion main pipe is arranged in the basement floor and surrounds the basement floor in a circle.

[0015] Analysis shows that the present invention discloses a flood-proof vortex well, which adopts a high-placed local power distribution box to ensure that operators will not be electrocuted when the well is flooded, and can operate safely and reliably; a lifting pump is used to draw water for local and remote filling to ensure emergency safety operations of operators when the well is flooded; water is replenished to the lifting pump on the one hand to improve the vacuum degree, and exhaust is continuously discharged at the outlet of the lifting pump on the other hand to shorten the water filling time of the lifting pump and ensure successful starting of the lifting pump to fill water: a flow regulating pipe is adopted that is higher than the height of the lifting pump pump chamber to ensure that the water in the lifting pump outlet main pipe and the lifting pump pump chamber will not be emptied; multiple methods are used to ensure that the lifting pump is started and filled with water normally; a water accumulation alarm is adopted to promptly notify the on-duty personnel of the pump station to respond to emergencies, and at the same time, the long-axis deep well pump is electrically interlocked to start automatically. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. Among them:

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the present invention.

[0018] Figure 2 The figure is a schematic diagram of the connection between the flow regulating pipe and the water outlet main pipe according to an embodiment of the present invention.

[0019] Explanation of the reference numerals in the accompanying drawings: 1 vortex well; 2 sedimentation tank; 3 lifting pump; 4 water diversion main pipe; 5 water diversion branch pipe; 6 local distribution box; 7 remote water diversion ball valve; 8 local water diversion ball valve; 9 exhaust ball valve; 10 exhaust pipe; 11 long-axis deep well pump; 12 water accumulation alarm; 13 flow regulating pipe; 14 electric valve; 15 underground first floor; 16 underground second floor; 17 water inlet pipe; 18 wellhead; 19 water outlet main pipe. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present invention and does not limit the present invention. In fact, it will be clear to those skilled in the art that modifications and variations may be made in the present invention without departing from the scope or spirit of the present invention. For example, a feature shown or described as a part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desired that the present invention encompasses such modifications and variations within the scope of the appended claims and their equivalents.

[0021] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. The terms "connected", "connected" and "set" used in the present invention should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate component; it can be a wired electrical connection, a radio connection, or a wireless communication signal connection. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0022] like Figure 1 to Figure 2 As shown, according to an embodiment of the present invention, a flood-proof vortex well is provided, comprising a vortex well 1, a water diversion main pipe 4, an on-site distribution box 6 and a lifting pump 3, wherein the bottom of the vortex well 1 is a sedimentation tank 2, a wellhead 18 is arranged in the vortex well 1, a grab grabs the oxidized iron sheet in the vortex well 1 through the wellhead 18, a plurality of lifting pumps 3 are arranged above the sedimentation tank 2, the water diversion main pipe 4 can replenish water into the lifting pump 3, the lifting pump 3 is connected to the on-site distribution box 6 through a circuit, the water inlet of the lifting pump 3 extends into the sedimentation tank 2, and the lifting pump 3 can pump water out of the sedimentation tank 2.

[0023] The outlet of the water inlet pipe 17 is located above the sedimentation tank 2. The turbid water on the rolling line flushes the oxidized iron scale from the water inlet pipe 17 into the sedimentation tank 2 for precipitation. The grab bucket grabs the oxidized iron scale from the wellhead 18. The turbid water in the sedimentation tank 2 is pumped out by the lifting pump 3. Part of the turbid water pumped out by the lifting pump 3 is used to flush the oxidized iron scale, and the other part enters the environmental protection equipment for treatment and recycling. The water main 4 can replenish water into the lifting pump 3, increase the vacuum degree of the pump cavity of the lifting pump 3, shorten the water supply time of the lifting pump 3, and ensure the successful start of the lifting pump 3. It is preferred to extend the outlet of the water inlet pipe 17 into the wellhead 18, which is conducive to the formation of vortex and helps the precipitation of impurities in the water. The exposure amount of the water inlet pipe 17 in the wellhead 18 is based on the premise that it does not affect the work of the grab bucket.

[0024] Furthermore, a negative first floor 15 and a negative second floor 16 are arranged in the vortex well 1. The negative second floor 16 is located above the sedimentation tank 2. The negative first floor 15 is located above the negative second floor 16. The ground of the negative first floor 15 is the top plate of the negative second floor 16. The negative first floor 15 and the negative second floor 16 have equal and separated spaces, which is safer. The negative first floor 15 is used to place water treatment dosing equipment and a long-axis deep well pump 11. The total depth of the negative first floor 15 and the negative second floor 16 is about -13 meters.

[0025] The ground of the second negative floor 16 is located above the sedimentation tank 2, and the lifting pump 3 is arranged on the ground of the second negative floor 16; the maximum liquid level of the vortex well 1 is 6 meters, and the ground of the second negative floor 16, i.e., the lifting pump platform, is -13.00m away from the ground plane. The local distribution box 6 is arranged under the top plate of the second negative floor 16, and there are multiple groups of local distribution boxes 6, each group of local distribution boxes 6 controls a lifting pump 3, and an operating platform is built under the local distribution box 6 and connected to the stairs of the second negative floor 16, so that the operator can operate the local distribution box 6 through the operating platform to start the lifting pump 3, and the on-site situation can be safely observed through the operating platform.

[0026] Since the total amount of turbid water on the rolling line will not make the water level in the vortex well 1 reach the top plate of the negative second floor 16, the local distribution box 6 is set below the top plate of the negative second floor 16. When the vortex well 1 is flooded, the turbid water can be prevented from flooding the local distribution box 6 and causing leakage accidents, thereby improving safety. In addition, if the water floods the motor, a short circuit will occur, and the cause needs to be found and the production needs to be stopped urgently, and all lifting pumps 3 need to be stopped. The pool of turbid water used for descaling, roller cooling, and roller cooling will also alarm at a low level, affecting the production progress.

[0027] In the prior art, the local distribution box 6 is located near the lift pump 3 on the negative second floor 16 of the vortex well. The present application moves the local distribution box 6 to the floor slab (top plate) of the negative second floor 16, builds an operating platform under the local distribution box 6 and connects it to the upstairs and downstairs stairs, which is convenient for starting the pump and can safely observe the on-site situation. In the early stage of flooding, when the water level does not exceed the motor junction box of the lift pump 3, the lift pump 3 can be started on-site to protect the safety of the operator.

[0028] Furthermore, the water main pipe 4 is arranged in the negative first floor 15 and surrounds the negative first floor 15. The water main pipe 4 is arranged in the negative first floor 15, which can keep the water main pipe 4 away from the water surface of the vortex well 1, prevent the water main pipe 4 from being rusted due to high air humidity, and further prevent the water main pipe 4 from leaking and splashing onto the motor of the lift pump 3, thereby damaging the motor of the lift pump 3; it is convenient to lay the water main pipe 4 without affecting the smoothness of the inspection route; and it can also realize the local water diversion and remote water diversion and filling of the lift pump 3.

[0029] In the prior art, the water diversion main pipe 4 is located at the negative second floor 16 of the vortex well. The present application moves the water diversion main pipe 4 to the negative first floor 15 and makes a circle. Each lifting pump 3 welds two water diversion branch pipes 5 from the opening of the water diversion main pipe 4. One water diversion branch pipe 5 is remotely controlled by a remote water diversion ball valve 7 on the negative first floor 15, and the other water diversion branch pipe 5 is locally controlled by a local water diversion ball valve 8 near the lifting pump 3 on the negative second floor 16.

[0030] Furthermore, two water diversion branches 5 are arranged between each lifting pump 3 and the water diversion main pipe 4, and the water diversion branch pipes 5 are connected to the lifting pump 3 and the water diversion main pipe 4 by welding, and the two water diversion branch pipes 5 can be connected to the lifting pump 3 respectively. Preferably, the two water diversion branch pipes 5 are connected to the lifting pump 3 after being combined, and the parallel connection mode of connecting the two water diversion branch pipes 5 to the lifting pump 3 after being combined can save pipelines and facilitate filling and diversion. One of the water diversion branch pipes 5 is provided with an on-site water diversion ball valve 8, and the on-site water diversion ball valve 8 is located in the negative second floor 16, and the other water diversion branch pipe 5 is provided with a remote water diversion ball valve 7, and the remote water diversion ball valve 7 is located in the negative first floor 15. Preferably, the material of the two water diversion branch pipes 5 is stainless steel to ensure that the water diversion branch pipes 5 will not rust and leak. During routine inspection, if it is necessary to add water to the lifting pump 3, the local water diversion ball valve 8 is used for local control of the filling; when the water level of the vortex well 1 does not exceed the motor junction box of the lifting pump 3 at the initial stage of flooding, the standby lifting pump 3 can be remotely filled with water through the remote water diversion ball valve 7 on the negative first floor 15. In the process of starting the standby lifting pump 3, the lifting pump 3 is continuously filled with water through the local water diversion ball valve 8 or the remote water diversion ball valve 7, so that the vacuum degree of the pump chamber of the lifting pump 3 is continuously improved, thereby shortening the pump start time and ensuring that the lifting pump 3 is successfully started and pumped with water.

[0031] Furthermore, the water main 4 is supplied with water independently by the industrial new water pipeline. The independent water supply by the industrial new water pipeline (tap water pipe) can ensure that the water main 4 has water at any time and will not lack water.

[0032] Furthermore, the lift pump 3 is connected to one end of the exhaust pipe 10, and the other end of the exhaust pipe 10 is provided with an exhaust ball valve 9. The setting of the exhaust ball valve 9 can conveniently exhaust when starting the lift pump 3. Such a setting can improve the vacuum degree of the pump chamber of the lift pump 3 and shorten the time of starting the lift pump 3. The exhaust ball valve 9 is connected to one end of the exhaust pipe 10, and the other end of the exhaust pipe 10 is placed in the vortex well 1. The gas and water discharged from the lift pump 3 return to the vortex well 1 through the exhaust pipe 10 to keep the site clean. The exhaust pipe 10 is preferably a hose. Preferably, the diameter of the hose is 8mm-10mm. The diameter of the hose is small, and it will not affect the flow rate of the lift pump 3 when it is always open. The hose is convenient for laying pipelines, and the material of the hose can be rubber, plastic, etc.

[0033] An exhaust pipeline is welded at the outlet of each lifting pump 3 and an exhaust ball valve 9 is installed. A small-diameter exhaust hose is installed behind the exhaust ball valve 9 and led to the ditch.

[0034] Furthermore, a long-axis deep-well pump 11 is also provided in the vortex well 1. The motor of the long-axis deep-well pump 11 is provided on the negative first floor 15. The bottom end of the transmission long shaft of the long-axis deep-well pump 11 extends below the ground of the negative second floor 16. An impeller is provided at the bottom end of the transmission long shaft. The impeller is located in the sedimentation tank 2. The water-lifting pipe of the long-axis deep-well pump 11 is provided on the negative first floor 15. A water accumulation alarm 12 is provided on the ground of the negative second floor 16. The distance between the water accumulation alarm 12 and the ground of the negative second floor 16 is 1cm-2cm. The long-axis deep-well pump 11 is electrically self-starting interlocked with the water accumulation alarm 12. When the water accumulation alarm 12 is activated, the long-axis deep-well pump 11 is activated at the same time. When the liquid level of the turbid ring water in the vortex well 1 rises to 6 meters, the water accumulation alarm 12 alarms, and the long-axis deep-well pump 11 automatically starts and pumps water.

[0035] Furthermore, it also includes a liquid level detection alarm. A liquid level observation port is provided on the ground of the negative second floor 16. The liquid level detection alarm is provided at the liquid level observation port. The liquid level detection alarm is an electronic detection device that can monitor the height of the liquid level in real time. The liquid level detection alarm is connected to the duty room of the pump station. The liquid level detection alarm is used to sound an alarm when a well is flooded. The operator can observe the well flooding situation by observing the real-time monitoring of the vortex well 1 on site, notify the production dispatcher, and coordinate the maintenance personnel to go to the vortex well 1 for emergency response as soon as possible.

[0036] The liquid level detection alarm and the water accumulation alarm 12 can realize multiple alarms. According to different alarms, corresponding measures can be taken for emergency treatment. First, the liquid level detection alarm will give an alarm prompt and start the standby lift pump. If the effect is not good and the water floods the ground of the negative second floor, the water accumulation alarm 12 will sound an alarm, and the long-axis deep well pump 11 will start automatically through electrical interlocking. Quick processing will help the standby lift pump to start successfully. If the standby lift pump fails to start successfully, after the water accumulation alarm 12 sounds an alarm, the electrical interlock long-axis deep well pump 11 also fails to start successfully. Under extreme conditions where both lines of defense fail, the motor of the lift pump 3 will be submerged, but the motor of the long-axis deep well pump 11 will not be submerged. The motor position is designed according to the highest water level, and the pump can be started manually.

[0037] Furthermore, there are multiple lift pumps 3, which are evenly arranged around the wellhead 18. Preferably, there are four lift pumps 3, and the outlet of each lift pump 3 is connected to the outlet pipe 19, which is connected to the flow regulating pipe 13, which is connected to the upper end of the outlet pipe 19. An electric valve 14 is arranged on the flow regulating pipe 13. The lift pump 3 is a sealless self-priming pump. One of the lift pumps 3 can be selected as the main lift pump, and the other three lift pumps 3 are standby lift pumps. When the main lift pump fails during operation, its water supply capacity is weakened or cannot supply water, and the standby lift pump is activated. The electric valve 14 is used to adjust and control the flow of the lift pump, maintain the balance of water inlet and outlet, and keep the water volume of the turbid circulating water entering the vortex well from the water inlet pipe 17 balanced with the water discharge volume of the lift pump 3. The flow rate of the water outlet main 19 is related to the water pumping volume of the lifting pump 3. The water pumping volume of the lifting pump 3 can be adjusted by the electric valve 14. During the production process, it is dynamically adjusted according to the demand for water consumption on site to maintain the water level balance in the vortex well 1.

[0038] The electric valve 14 is normally open in the working state. In the prior art, the flow regulating pipe is welded and placed in the middle and lower part of the outlet pipe 19 of the lifting pump 3. When the production is stopped for maintenance, the water in the outlet pipe 19 and the pump chamber of the lifting pump 3 is easily emptied; even if the electric valve 14 is closed, the seal will be deteriorated due to the scouring of the water flow for a long time, causing leakage, and the water in the outlet pipe 19 and the pump chamber of the lifting pump 3 will also be emptied. When the maintenance is completed and the production is resumed, it is difficult or impossible to start the lifting pump 3 to fill the water, and the fast production return water will cause flooding of the well. In the present invention, the flow regulating pipe 13 is welded to the upper end of the outlet pipe 19 of the lifting pump 3, and the electric valve 14 adjusts and controls the flow; the height of the flow regulating pipe 13 is higher than the height of the pump chamber of the lifting pump 3. Such a setting can prevent the water in the outlet pipe 19 of the lifting pump 3 and the pump chamber of the lifting pump 3 from being emptied, and a part of the water will always be retained to ensure the normal start of the lifting pump 3.

[0039] A water accumulation alarm 12 is installed on the ground of the negative second floor 16 of the vortex well 1; a long-axis deep well pump 11 is installed at the negative first floor 15, and the long-axis deep well pump 11 is automatically interlocked with the water accumulation alarm 12; in the prior art, the flow regulating pipe 13 of the lifting pump 3 is welded to the middle and lower part of the water outlet main pipe 19, and the present application welds the flow regulating pipe 13 to the top of the water outlet main pipe 19, and the flow is regulated and controlled by the electric valve 14. The water outlet of the long-axis deep well pump 11 is also connected to the water outlet main pipe 19, and the electric valve 14 is also used to adjust and control the flow of the long-axis deep well pump 11 to maintain the balance of water inlet and outlet. The long-axis deep well pump 11 is mainly used in emergency situations.

[0040] Specifically, when the vortex well 1 works normally, the liquid level of the turbid circulating water in the vortex well 1 is 4m (-15.00m from the ground level). When the main lift pump 3 fails during operation, its water supply capacity is weakened or it cannot supply water, causing the vortex well 1 to be flooded. When flooding occurs, there are several emergency treatment methods:

[0041] 1) When the liquid level of the turbid ring water in the vortex well 1 rises to 4.5m (-14.50m from the ground level), the liquid level detection alarm sounds a high liquid level alarm. The water level does not exceed the ground level of the second negative floor. The operator checks whether the standby lift pump 3 has the conditions to start and whether the standby lift pump 3 has sufficient water (there is a water diversion inspection ball valve on the pump body of each lift pump 3). Then, the local water diversion ball valve 8 is used to supplement water to the standby lift pump 3 to ensure that the standby lift pump 3 is successfully started and water is supplied.

[0042] 2) When the liquid level of the turbid ring water in the vortex well 1 rises to 5m (-14.00m from the ground level), the liquid level detection alarm will sound a high liquid level alarm. When the water level reaches the ground of the second negative floor, in order to prevent the operator from being electrocuted (part of the motor transmission line of the lifting pump 3 is on the ground of the second negative floor), the operator can use the remote water diversion ball valve 7 to divert water to the standby lifting pump 3, increase the vacuum degree of the pump chamber of the standby lifting pump 3, shorten the water filling time of the standby lifting pump 3, and ensure the successful start of the standby lifting pump 3.

[0043] 3) When the standby lifting pump 3 cannot be started or the liquid level continues to rise to 6 meters (-13.00m from the ground level) after starting, water first accumulates on the ground of the negative second floor 16, the water accumulation alarm 12 sounds, and the long-axis deep well pump 11 and the water accumulation alarm 12 are electrically interlocked and automatically start to pump water.

[0044] Example 1

[0045] Four lifting pumps 3, a long-axis deep well pump 11 and their supporting power supply and monitoring facilities are installed in the vortex well 1 of a steel rolling mill. Any one of the four lifting pumps 3 can be used as a main lifting pump 3 to operate alone. The main lifting pump 3 sends one path of the turbid circulating water collected in the ditch to the rare earth magnetic disk for water treatment, and the other path is used to flush all the oxidized iron scale into the vortex well 1 during steel rolling, and then grab the oxidized iron scale through the grab bucket; the electric valve 14 on the flow regulating pipe 13 adjusts the flow to maintain the balance of water in and out of the vortex well 1. During normal production, the liquid level of vortex well 1 is 4m (-15.00m from the ground level). When the liquid level rises to 4.5m (-14.50m from the ground level), the liquid level detection alarm will give a high liquid level alarm; when the liquid level rises to 5m (-14.00m from the ground level), the liquid level detection alarm will give a high-high liquid level alarm; when the liquid level rises to 6m (-13.00m from the ground level), the ground water accumulation alarm will give an alarm, and a well flooding accident will occur. The pump station staff on duty should do the following emergency treatment:

[0046] 1. When the duty personnel of the pump station hear the high liquid level alarm of the liquid level detection alarm or the computer control screen shows that the liquid level reaches 4.5m (-14.50m from the ground level) or above, they should immediately confirm the actual liquid level and check whether the main lifting pump 3 of the vortex well 1 is operating normally. If it is a false alarm, notify the maintenance personnel to conduct on-site inspection of the cause of the false alarm and troubleshoot equipment problems. The operator should check whether the standby lifting pump 3 has the conditions for starting and whether the water diversion of the standby lifting pump 3 is sufficient (there is a water diversion inspection ball valve on the pump body of each lifting pump 3), and then use the local water diversion ball valve 8 to supplement the main standby lifting pump 3 with water to ensure that the standby lifting pump 3 is successfully started.

[0047] 2. When the liquid level continues to rise and reaches 5m (-14.00m from the ground level), the liquid level detection alarm will sound a high liquid level alarm, and the main lifting pump 3 that is in operation has a problem. The on-site operator first selects the spare lifting pump 3 that needs to be started, opens the remote water diversion ball valve 7 of the spare lifting pump 3 on the negative first floor 15, remotely fills and diverts water to the lifting pump 3, and goes to the negative second floor 16 to operate the local distribution box 6. Based on the sound and the current of the local distribution box 6, it is determined whether the lifting pump 3 has been successfully started and water is supplied. On the operating platform, observe whether there is water accumulation on the ground of the negative second floor 16 of the vortex well 1.

[0048] 3. If the standby lift pump 3 cannot be started or the liquid level continues to rise after starting, continue to start the remaining standby lift pumps 3.

[0049] 4. When the liquid level reaches 6m (-13.00m from the ground level), the ground water alarm 12 will sound. At this time, the dispatching room should be used to immediately notify the rolling mill operation station to "stop production in an emergency", shut down all turbid water supply pumps on the rolling line, and notify the relevant personnel in the workshop to go to the scene to deal with the equipment problem in an emergency. The long-axis deep well pump 11 and the water alarm 12 will be electrically interlocked and started automatically to control the water level in the vortex well.

[0050] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0051] 1. The local power distribution box 6 is placed high to ensure that operators will not be injured by electricity when the well is flooded, and the operation is safe and reliable.

[0052] 2. Use lifting pump 3 to divert water for local filling and remote filling to realize emergency safety operation of operators when the well is flooded.

[0053] 3. While supplying water to the lifting pump 3 to improve the vacuum degree, the exhaust is continuously discharged at the outlet of the lifting pump 3 to shorten the water filling time of the pump and ensure the successful start-up of the pump.

[0054] 4. The flow regulating pipe 13 is higher than the pump chamber height of the lifting pump 3, so that the water outlet main pipe of the lifting pump 3 and the water inlet of the pump chamber of the lifting pump 3 will not be drained.

[0055] 5. Through the alarm of the water accumulation alarm 12, the on-duty personnel of the pump station can be notified in time for emergency. At the same time, the water accumulation alarm 12 and the long-axis deep well pump 11 are electrically interlocked and automatically started to control the water level to prevent flooding of the well.

[0056] 6. Multiple methods are used to ensure that the start-up and water supply of the lifting pump 3 are normal.

[0057] 7. Multiple emergency response methods.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flood prevention vortex well, characterized in that: It includes a vortex well, a water diversion main, a local distribution box and a lifting pump, among which: The bottom of the cyclone well is a sedimentation tank; A plurality of lift pumps are arranged above the sedimentation tank, the water main can replenish water into the lift pumps, the lift pumps are connected to the local power distribution box through a circuit, the water inlet of the lift pumps extends into the sedimentation tank, and the lift pumps can pump water out of the sedimentation tank. A negative first floor and a negative second floor are arranged in the vortex well and above the sedimentation tank, the negative first floor is located above the negative second floor, the ground of the negative first floor is the top plate of the negative second floor, the ground of the negative second floor is located above the sedimentation tank, and the lifting pump is arranged on the ground of the negative second floor; The local distribution box is arranged under the top plate of the negative second floor. The water diversion main pipe is arranged in the basement floor and surrounds the basement floor. The water diversion main pipe is far away from the water surface of the vortex well. A long-shaft deep-well pump is also provided in the vortex well, the motor of the long-shaft deep-well pump is provided on the negative first floor, the bottom end of the transmission long shaft of the long-shaft deep-well pump extends below the ground of the negative second floor, an impeller is provided at the bottom end of the transmission long shaft, the impeller is located in the sedimentation tank, and the water lifting pipe of the long-shaft deep-well pump is provided on the negative first floor; A water accumulation alarm is arranged on the ground of the negative second floor, and the long-axis deep well pump is interlocked with the water accumulation alarm for self-starting; When the liquid level of the turbid circulating water in the sedimentation tank rises to 6 meters, the water accumulation alarm sounds, and the long-axis deep well pump automatically starts to pump water.

2. The flood prevention vortex well according to claim 1, characterized in that: Two water diversion branch pipes are arranged between each of the lifting pumps and the water diversion main pipe, and the lifting pumps are connected to the water diversion main pipe through the two water diversion branch pipes respectively. A local water diversion ball valve is arranged on one of the water diversion branch pipes, and the local water diversion ball valve is located in the second negative floor; a remote water diversion ball valve is arranged on the other water diversion branch pipe, and the remote water diversion ball valve is located in the first negative floor.

3. The flood prevention vortex well according to claim 1, characterized in that: The lift pump is connected to one end of an exhaust pipe, and the other end of the exhaust pipe is placed in the vortex well.

4. The flood prevention vortex well according to claim 3, characterized in that: An exhaust ball valve is arranged on the exhaust pipe.

5. The flood prevention vortex well according to claim 3, characterized in that: The exhaust pipe is a hose.

6. The flood prevention vortex well according to claim 1, characterized in that: The distance between the water accumulation alarm and the ground of the negative second floor is 1cm-2cm.

7. The flood prevention vortex well according to claim 1, characterized in that: The water main is supplied with water separately by the new industrial water pipeline.

8. The flood prevention vortex well according to claim 1, characterized in that: It also includes a liquid level detection alarm. The negative second floor is provided with a liquid level observation port, and the liquid level detection alarm is arranged at the liquid level observation port; When the vortex well is working normally, the liquid level of the turbid circulating water in the sedimentation tank is 4m; When the liquid level of the turbid circulating water in the sedimentation tank rises to 4.5m, the liquid level detection alarm will sound a high liquid level alarm; When the liquid level of the turbid circulating water in the sedimentation tank rises to 5m, the liquid level detection alarm will sound a high liquid level alarm.

9. The flood prevention vortex well according to claim 1, characterized in that: There are multiple lifting pumps, and the water outlets of the multiple lifting pumps are all connected to the water outlet main pipe, the water outlet main pipe is connected to the flow regulating pipe, the flow regulating pipe is connected to the upper end of the water outlet main pipe, and an electric valve is arranged on the flow regulating pipe. The lifting pump is a sealless self-priming pump.

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