A sinking well water suction pumping device and a pumping method thereof

Abstract

The present application belongs to the technical field of mine water supply, and particularly relates to a sinking well water suction pumping device and a pumping method thereof. A water tank bottom is fixed with a support column, a water tank right side is connected with a water suction pipe, a water tank center framework is fixed with an impeller, the impeller is opposite to the water suction pipe, the other end of the water suction pipe is connected with a water inlet end of a centrifugal water pump, a first communication device is connected between the water suction pipe and the centrifugal water pump, a flushing pipe is connected with the water tank bottom, the other end of the flushing pipe is connected with a water outlet end of the centrifugal water pump, an electric flushing valve is arranged on the flushing pipe, a water supply pipe is connected with the water outlet end of the centrifugal water pump, the water supply pipe is connected with a first sedimentation tank, a water outlet of the first sedimentation tank is connected with a second sedimentation tank through an overflow pipe, the second sedimentation tank is connected with a first clean water tank through the overflow pipe, the first clean water tank is connected with a second clean water tank through the overflow pipe, and a water outlet pipe is connected with a side wall center of the second clean water tank. The device realizes logical programming and intelligent control, and automatically and intelligently controls the centrifugal water pump flow and pressure according to liquid level and concentration sensing.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of mine water supply, and particularly relates to a sinking well water suction pumping device and a pumping method thereof. BACKGROUND

[0002] The wet grinding and beneficiation process is an important process in the beneficiation process, and both processes require a large amount of industrial water. Currently, industrial water is pumped from the downstream of a river by a deep underground vacuum pump, a centrifugal water pump station or a pump house. Both the deep underground vacuum pump and the centrifugal water pump have the problem of insufficient suction at the suction end, which causes cavitation and turbulence of the centrifugal water pump, and auxiliary vacuum pumps need to be added to ensure the vacuum degree at the suction end of the centrifugal water pump to meet the full water suction at the suction end. However, it still cannot meet the large industrial water production. At the same time, if the vacuum degree is insufficient, the centrifugal water pump and the pipeline will be blocked, and accidents such as cavitation and turbulence will occur. SUMMARY

[0003] The present application aims to provide a sinking well water suction pumping device and a pumping method thereof, which solves the problem that the existing deep underground vacuum pump and the centrifugal water pump need to be vacuumized at the suction end to meet the full water suction, and even if the suction end is full of water, it still cannot meet the large industrial water production.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0005] The utility model provides a kind of sinking well water suction pumping device, including filtering mechanism, pumping mechanism, sedimentation separation mechanism and controller, the filtering mechanism is placed in river water, and river water is provided with river water concentration detection sensor and river water liquid level detection sensor in, the pumping mechanism is placed in sinking well, the filtering mechanism includes water tank, the pumping mechanism includes centrifugal water pump, the sedimentation separation mechanism includes first sedimentation pool and second sedimentation pool, the water tank is equipped with water inlet hole on tank wall, and water tank is welded with channel section steel in frame, and water tank is fixed with screen outside by bolt and pressing plate, and water tank bottom is fixed with support column, the bottom plate is fixed at the bottom end of support column, water tank right side is connected with water suction pipe, impeller is fixed on water tank center frame, and impeller is opposite water suction pipe, and the other end of water suction pipe is connected with the water inlet end of centrifugal water pump, and first intercommunicator is connected between water suction pipe and centrifugal water pump, the number of water suction pipe is consistent with the number of first intercommunicator left side pipeline, the number of centrifugal water pump is consistent with the number of first intercommunicator right side water pipe, electric ball valve and electric butterfly valve are equipped on the left side of first intercommunicator, and right side is equipped with manual butterfly valve and electric butterfly valve, flushing pipe is connected at water tank bottom, and the other end of flushing pipe is connected with the water outlet end of centrifugal water pump, and electric flushing valve is equipped on flushing pipe, and water supply pipe is connected at the water outlet end of centrifugal water pump, and water supply pipe is connected with first sedimentation pool, check valve and concentration detection sensor are equipped at the water inlet of first sedimentation pool, liquid level detection sensor is equipped in first sedimentation pool, and blow-off pipe is equipped at the bottom of first sedimentation pool, and overflow pipe is connected between the water outlet of first sedimentation pool and second sedimentation pool, concentration detection sensor is equipped at the water inlet of second sedimentation pool, liquid level detection sensor is equipped in second sedimentation pool, blow-off pipe is equipped at the bottom of second sedimentation pool, and first clear water pool is connected between second sedimentation pool and first clear water pool through overflow pipe, liquid level detection sensor is equipped in first clear water pool, blow-off pipe is equipped at the bottom of first clear water pool, concentration detection sensor is equipped at the water outlet of first clear water pool, second clear water pool is connected between first clear water pool and second clear water pool through overflow pipe, liquid level detection sensor is equipped in second clear water pool, blow-off pipe is equipped at the bottom of second clear water pool, and water outlet pipe is connected at the center of the side wall of second clear water pool, concentration detection sensor is equipped at the end of water outlet pipe in second clear water pool, and the frequency conversion motor of electric butterfly valve, electric ball valve and centrifugal water pump is connected with controller, electric butterfly valve, electric ball valve, centrifugal water pump and each concentration detection sensor, liquid level detection sensor PLC interlock, realize logic programming and intelligent control, and automatic intelligent control is realized to centrifugal water pump flow and pressure size according to liquid level and concentration perception.

[0006] Preferably, the impeller, flushing pipe, water suction pipe and centrifugal water pump are multiple groups.

[0007] Preferably, the water suction pipe is poured in the inner wall of sinking well.

[0008] Preferably, the flushing pipe end is uniformly arranged with spray head.

[0009] Preferably, the centrifugal water pump outlet is connected with the water supply pipe in sequence with a check valve, a manual butterfly valve, an electric butterfly valve, a second communication device and a third communication device, the check valve is connected with the controller, the check valve is connected with each concentration detection sensor and liquid level detection sensor PLC interlocking, realizing logic programming and intelligent control.

[0010] Preferably, the first communication device is provided with a manual butterfly valve between the left two pipes and the right four pipes.

[0011] Preferably, the second communication device is connected with the third communication device, the second communication device is provided with a manual butterfly valve between the left four pipes and the right two pipes, the third communication device is provided with two manual butterfly valves between the left two pipes and the right one pipe, the right side of the second communication device is connected with the left side of the third communication device, and the right side pipe of the third communication device is connected with the water supply pipe.

[0012] Preferably, the water supply angle of the water supply pipe is less than 90 degrees.

[0013] Based on the pumping method of the sinking well water suction pumping device, the specific steps are as follows:

[0014] S1: The impeller is automatically rotated by the strong suction of the centrifugal water pump without the need of motor driving, the river water enters the water tank through the impeller and the centrifugal water pump, is filtered through the screen, and is stirred by the impeller;

[0015] S2: The river water enters the water suction pipe, the water supply pipe, the check valve, the first sedimentation tank, the second sedimentation tank, the first clean water tank and the second clean water tank in sequence through the pumping action of the impeller and the centrifugal water pump, and provides industrial water through the water outlet pipe, with the increase of the pumping capacity and the pressure of the centrifugal water pump, the water enters the first clean water tank and the second clean water tank from the top overflow pipe of the first sedimentation tank and the second sedimentation tank, and the concentration detection sensor, the liquid level detection sensor, the electric ball valve, the electric butterfly valve, the centrifugal water pump, the check valve and the controller are interlocked to drive the automatic intelligent sinking well water suction pumping production intelligent logic programming PLC control line of river water—filtration—stirring—water suction—pumping—sedimentation—overflow, and the whole process of filtering, conveying, sedimentation, separation and overflow of river water is an automatic detection and perception intelligent logic programming PLC control process.

[0016] S3: According to the first sedimentation tank and the second sedimentation tank liquid level, automatic intelligent pump water: liquid level detection sensor automatic detection perception and intelligent control of the first sedimentation tank and the second sedimentation tank liquid level, and set the centrifugal water pump variable frequency motor operating parameters and the first sedimentation tank, the second sedimentation tank liquid level detection sensor PLC interlock, realize logic programming and intelligent control; When the liquid level detection sensor automatic detection perception and intelligent control of the first sedimentation tank and the second sedimentation tank liquid level is between the overflow pipe up and down, keep the existing operating frequency of the centrifugal water pump, automatic normal frequency pump water; When the liquid level detection sensor automatic detection perception and intelligent control of the first sedimentation tank and the second sedimentation tank liquid level is below the position of the overflow pipe, automatically increase the frequency and operating speed of the centrifugal water pump variable frequency motor, automatically increase the water supply (speed and water supply are proportional), until the first sedimentation tank and the second sedimentation tank liquid level gradually rises to the position of the overflow pipe; When the liquid level detection sensor automatic detection perception and intelligent control of the first sedimentation tank and the second sedimentation tank liquid level is higher than the position of the overflow pipe, automatically reduce the frequency and operating speed of the centrifugal water pump variable frequency motor, reduce the water supply, until the first sedimentation tank, the second sedimentation tank liquid level gradually decreases to close to the position of the overflow pipe, and then restore normal frequency operation; In addition, when the production water demand increases, automatically increase the frequency and operating speed of 2-6 centrifugal water pump variable frequency motors through computer instructions, increase the water supply, until the overflow water of the first sedimentation tank and the second sedimentation tank increases, further increase the production water supply;

[0017] S4: According to the first sedimentation tank and the second sedimentation tank liquid level, automatic intelligent pump water: concentration detection sensor automatic detection perception and intelligent control of the first sedimentation tank and the second sedimentation tank liquid level, and set the centrifugal water pump variable frequency motor operating parameters and the first sedimentation tank and the second sedimentation tank liquid concentration detection sensor PLC interlock, realize logic programming and intelligent control; When the first sedimentation tank and the second sedimentation tank liquid concentration detection sensor automatic detection perception and intelligent control to the water concentration of the first sedimentation tank and the second sedimentation tank inlet <5%, stabilize the existing operating frequency of the centrifugal water pump, normal frequency pump water; When the concentration detection sensor automatic detection perception and intelligent control to the water concentration of the first sedimentation tank and the second sedimentation tank inlet 5% <8%, send an alarm signal, and manually determine whether to stop pumping water; When the concentration detection sensor detects that the water concentration of the first sedimentation tank and the second sedimentation tank inlet is >8%, send an alarm signal and automatically stop after 60 seconds;

[0018] S5: According to the river water level, automatic intelligent pump water: river water level detection sensor automatic detection and intelligent control river water level high and low position, and set the centrifugal water pump variable frequency motor operation parameters and river water level detection sensor PLC interlock, realize logic programming and intelligent control, when the river water level detection sensor automatic detection and intelligent control river water level is higher than the top of the water tank, keep the existing centrifugal water pump frequency, normal frequency pump water; When the river water level detection sensor automatic detection and intelligent control river water level is lower than the top of the water tank 100-300mm, automatically reduce the centrifugal water pump variable frequency motor frequency and running speed, reduce the water supply, until the river water level gradually rises to the top of the centrifugal water pump position, and inform the upstream gate; When the river water level detection sensor automatic detection and intelligent control river water level is lower than the top of the water pipe 10-50mm, automatically stop the centrifugal water pump operation, and inform the upstream gate, increase the water discharge;

[0019] S6: According to the river water concentration, automatic intelligent pump water: river water concentration detection sensor automatic detection and intelligent control water tank near river water concentration, and set the centrifugal water pump variable frequency motor operation parameters and river water concentration detection sensor PLC interlock, realize logic programming and intelligent control, when the river water concentration detection sensor automatic detection and intelligent control to the water tank inlet hole water concentration <5%, stable centrifugal water pump existing running frequency, normal frequency pump water; When the river water concentration detection sensor automatic detection and intelligent control to the water tank inlet hole 5% < river water concentration <8%, send alarm signal, whether artificial judge need to stop pumping; When the river water concentration detection sensor detects the water tank inlet hole river water concentration >8%, send alarm signal 60 seconds after automatic stop;

[0020] S7: When the river water concentration detection sensor automatic detection and intelligent control to the water tank inlet hole river water concentration >5%, and set the electric flushing valve, centrifugal water pump variable frequency motor and river water concentration detection sensor PLC interlock, realize logic programming and intelligent control, automatically open the electric flushing valve of the flushing pipe at the bottom of the water tank, realize the automatic flushing of the nozzle at the head of the flushing pipe under high pressure water; In addition, when the system is stopped for maintenance, the sludge under the water tank is periodically flushed to ensure that the bottom of the water tank is clean and free of sludge.

[0021] Compared with the prior art, the beneficial effects obtained by the present application are as follows:

[0022] (1) The space is separated by the water tank, the impeller and the centrifugal water pump in the caisson in the river water, the centrifugal water pump suction power is automatically rotated to stir the water tank and the suction pipe, the pipeline blockage, cavitation and turbulence accidents are eliminated, the equipment failures and hidden dangers such as large vibration of the centrifugal water pump, impeller fracture and flying out, pump shell cracking and short service life of spare parts are avoided; At the same time, the centrifugal water pump suction can be full of water without vacuum suction at the water suction end;

[0023] (2) the water supply angle of the water supply pipe is less than 90 degrees, the wear of the bend is reduced, the water supply resistance is greatly reduced, the cavitation and turbulence accidents are avoided, the pipe leakage is effectively reduced, the water pumping efficiency is improved, the large flow, high efficiency and low energy consumption targets are achieved, the water pumping cost is reduced, and the service life of the centrifugal water pump and main spare parts is prolonged;

[0024] (3) the safety of water pumping is improved, the pipe wear is reduced, the technical problems of unstable pressure, low pumping efficiency, pipe blockage, high energy consumption, pump emptying, cavitation and turbulence in the previous production process are solved, and the problem that the water suction end is full of water but still cannot meet the water demand of large industrial production is avoided;

[0025] (4) the frequency conversion motor of the electric butterfly valve, the electric ball valve and the centrifugal water pump is connected with the PLC interlocking of each concentration detection sensor and liquid level detection sensor, logic programming and intelligent control are realized, and the automatic intelligent control of the centrifugal water pump flow and pressure is realized according to the liquid level and concentration sensing;

[0026] (5) the blowdown pipe of the first sedimentation tank, the second sedimentation tank, the first clean water tank and the second clean water tank is convenient for regular flushing and mud discharge;

[0027] (6) the internal structure (integrated sensor + actuator + control system etc.) of the electric ball valve, the electric butterfly valve, the check valve and the motor of the centrifugal water pump is intelligently controlled by the PLC, the electric structure, various valves, motors and other equipment are realized machine side and remote precise control and intelligent management, and the running state of the electric structure, various valves, motors and other equipment is realized real-time monitoring; the automatic control operation parameters of the centrifugal water pump are realized according to the liquid level and concentration sensing. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 it is the structural schematic view of the embodiment of the application;

[0029] Figure 2 it is the structural schematic view of the first communication pipe in the embodiment of the application;

[0030] Figure 3 it is the connection relationship schematic view of the second communication pipe and the third communication pipe in the embodiment of the application;

[0031] Figure 4 it is the structural schematic view between the water tank and the water supply pipe in the embodiment of the application.

[0032] Explanation of reference numerals in the attached drawings: 1. Support column; 2. Water tank; 3. Impeller; 4. River water concentration sensor; 5. River water; 6. River water level sensor; 7. Flushing pipe; 8. Suction pipe; 9. Riverbank; 10. Caisson; 11. First electric butterfly valve; 12. Electric ball valve; 13. First connector; 14. First manual butterfly valve; 15. Second electric butterfly valve; 16. Centrifugal water pump; 17. Electric flushing valve; 18. First check valve; 19. Second manual butterfly valve; 20. Third electric butterfly valve; 21. Second connector; 22. Third connector; 23. Water supply pipe; 24. First sewage pipe; 25. Second check valve; 26. First concentration sensor; 27. First sedimentation tank; 28. First level sensor; 29. ​​First overflow pipe; 30. Second concentration sensor; 31. Second sedimentation tank 32. Second liquid level sensor; 33. Second overflow pipe; 34. Third liquid level sensor; 35. First clear water tank; 36. Third concentration sensor; 37. Third overflow pipe; 38. Fourth liquid level sensor; 39. Second clear water tank; 40. Water outlet pipe; 41. Fourth concentration sensor; 42. Third manual butterfly valve; 43. Fourth manual butterfly valve; 44. Fifth manual butterfly valve; 45. Sixth manual butterfly valve; 46. Second drain pipe; 47. Third drain pipe; 48. Fourth drain pipe. Detailed Implementation

[0033] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings and embodiments.

[0034] like Figure 1 As shown, a caisson-driven water pumping device is designed based on the existing river water suction pipe conditions, production water demand, and pressure requirements. A water tank 2 is installed in the river water 5, and a caisson 10 is installed on the riverbank 9 150-200m away from the water tank. The inner diameter of the caisson is 20-30m, the depth is 20-26m, the bottom elevation of the caisson is 1109m, and the top elevation of the caisson is 1133m. The caisson is made of reinforced concrete 450mm thick, with a thickness of 600-1000mm. A Φ20-Φ30mm steel mesh is installed inside, and a waterproof material is applied to the outside to prevent a large amount of river water from seeping into the caisson. Based on the caisson's water suction, water supply speed, and water volume, the diameter of the water supply pipe is calculated to be Ф1100mm using empirical formulas. A first sedimentation tank and a second sedimentation tank are installed on the hilltop at the end of the water supply pipe.

[0035] like Figure 1As shown, a caisson water suction pumping device, comprising a filtering mechanism, a pumping mechanism and a sediment separation mechanism, the filtering mechanism is placed in the river water 5, the river water concentration detection sensor 4 and the river water level detection sensor 6 are arranged in the river water 5, the river water level and the river water turbidity are detected, the pumping mechanism is placed in the caisson 10, the filtering mechanism comprises a water tank 2, the pumping mechanism comprises a centrifugal water pump 16, the sediment separation mechanism comprises a first sediment pool 27 and a second sediment pool 31, the water tank 2 is a cuboid, the length, width and height are 12 m, 4 m and 5 m respectively, the distance from the water surface is 10-20 m, the water tank 2 is provided with an inlet hole on the tank wall, the water tank 2 is welded with a 30#-40# channel steel frame, the welding is continuous and the welding height is greater than 12 mm, the water tank 2 is fixed with a screen outside through bolts and pressing plates, the screen is made of 304 stainless steel and is rectangular, the mesh size is (10-20) x (5-11) mm, the screen filters the sundries in the river water and prevents the fish in the river from being sucked into the pipeline; the water tank 2 is fixed with a support column 1 at the bottom, the support column is welded with a 40#-60# wide I-beam, the bottom end of the support column 1 is fixed with a bottom plate to ensure the reliable fixation of the water tank, two water suction pipes 8 are connected to the right side of the water tank 2, the diameter of the water suction pipe 8 is φ1400-φ1600 mm, the length is 150-200 m, the thickness is 14-16 mm, the water suction pipe 8 is inserted into the water tank 2 by 100-300 mm, the water suction pipe 8 is designed as a spiral double-face welded pipe, the length of each pipe is 12 m, the material is Q235, the connection mode is that a quick flange joint is welded at the joint every 12 m, the flanges are connected by M24x100 bolts, the flanges are welded with a 30° bevel and continuous welding, the welding height is greater than 15 mm; and 3-5 mm wear-resistant rubber plates are pasted inside the water suction pipe to prolong the service life of the water suction pipe, the water suction pipe is poured into the inner wall of the caisson, which aims to ensure the reliable fixation of the water suction pipe and eliminate the resonance caused by cavitation and turbulence; an impeller 3 is fixed on the central frame of the water tank 2, the impeller 3 faces the water suction pipe 8, the thickness of the blades in the impeller is 1-3 mm, the number of the blades is 6-12 groups, the rotation direction is left-handed, and the material of the blades is corrosion-resistant aluminum-magnesium alloy; the other end of the water suction pipe 8 is connected to the water inlet end of the centrifugal water pump 16, the pump body of the centrifugal water pump is made of ZG230-450 material, the design is double volute, the flow channel is smooth and flawless, all the water flow parts are free of sharp corners, the flow velocity and flow direction change are balanced, the flow parts are treated with anticorrosive coating, the cross section of the channel is large enough to ensure that the sundries with the required particle size can pass through, the pump body structure of the centrifugal water pump is linear, the appearance is beautiful, the structure is compact, the support distance of the two ends of the pump body is shortened, the rigidity of the shaft is increased, the installation is facilitated, and the pump cover is automatically corrected; the shaft sleeve of the centrifugal water pump is made of 304 stainless steel, the impeller ring of the centrifugal water pump is made of ZG230-450 material, according to the different river water turbidity, the service life of the main spare parts is 20000 h-30000 h at least, the service life and pumping efficiency of the centrifugal water pump are improved, and the equipment failure is reduced.In the process of centrifugal water pump water suction, the impeller 3 is automatically rotated due to the strong suction of the centrifugal water pump 16, without the need of motor driving. The impeller 3 is automatically rotated under the rotational hydraulic impact of the water suction pipe 8, automatically agitates the water flow, generates water sound, turbulence and vibration, prevents the fish in the river from approaching the water tank 2, and agitates the turbid particles in the water tank, which are filtered out of the water tank through the filter hole with the size of (10-20) x (5-11) mm of the water tank 2, especially the turbid particles are filtered out of the bottom of the water tank 2 under the action of gravity, and the particles are effectively prevented from blocking the water suction pipe 8.

[0036] As Figures 1-4As shown, the water suction pipe 8 is connected with the first communication device 13 between the centrifugal water pump 16, the left side of the first communication device 13 is connected with the water suction pipe 8 through two pipes, and the right side is provided with the third manual butterfly valve 42 through four pipes; the centrifugal water pump 16 is connected in parallel with four pumps, the left side of the first communication device 13 is provided with the electric ball valve 12 and the first electric butterfly valve 11 on the two pipes, the right side is provided with the first manual butterfly valve 14 and the second electric butterfly valve 15 on the four pipes, the right side of the first communication device 13 is connected with the water inlet end of the centrifugal water pump 16 through the four pipes, the first communication device 13 makes two sets of water suction pipes 8 not affect the production when one set is repaired, such as replacing any valve, without stopping production, the four pumps do not affect each other and do not interfere with each other, and do not affect the production; the bottom of the water tank 2 is connected with the flushing pipe 7, the end of the flushing pipe 7 is uniformly arranged with the spray head, the number of the spray head is 5-12 groups, the other end of the flushing pipe 7 is connected with the water outlet end of the centrifugal water pump 16, the electric flushing valve 17 is arranged on the flushing pipe 7, the electric flushing valve 17 is interlocked with the concentration detection sensor PLC, realizes the logic programming and intelligent control, realizes the automatic flushing of the water tank sludge and other targets, flushes the sludge under the water tank 2, ensures that the space 5-10m under the water tank 2 is free of sludge, the water outlet end of the centrifugal water pump 16 is connected with the water supply pipe 23, the water outlet end of the centrifugal water pump 16 is sequentially connected with the first check valve 18, the second manual butterfly valve 19, the third electric butterfly valve 20, the second communication device 21 and the third communication device 22 between the water supply pipe 23, the second communication device 21 is connected with the third communication device 22, the left side of the second communication device 21 is provided with the fourth manual butterfly valve 43 through four pipes, the right side is provided with two pipes, the middle is provided with the fifth manual butterfly valve 44 and the sixth manual butterfly valve 45, the left side of the second communication device 21 is connected with the water outlet end of the centrifugal water pump 16 through the four pipes, the left side of the third communication device 22 is provided with two pipes, the right side is provided with one pipe, the middle is provided with the fifth manual butterfly valve 44 and the sixth manual butterfly valve 45, the right side of the second communication device 21 is connected with the left side of the third communication device 22 through the two pipes, the right side of the third communication device 22 is connected with the water supply pipe 23, the second communication device 21 and the third communication device 22 are provided with a plurality of pipes, which do not affect each other and do not interfere with each other when any one of the first check valve 18, the second manual butterfly valve 19 and the third electric butterfly valve 20 is repaired, and do not affect the production; in order to replace the water pump impeller 3 and the shaft sleeve, all the valves of the water suction pipe 8 need to be closed, if one of the electric ball valves or the electric butterfly valves is broken, the manual butterfly valve needs to be closed, the water pipe is ensured to be free of water, the water pump is convenient to disassemble and repair, and the work of replacing the vulnerable parts is realized; the third manual butterfly valve 42 is closed to make two water suction pipes independently suck water, which do not affect each other, such as one of the water suction pipes 8 independently supplies water, realizes the water supply of the 1# and 2# centrifugal water pumps, and the 3# and 4# centrifugal water pumps are repaired; the third manual butterfly valve 42 is opened to realize the water supply of any one of the 1#-4# centrifugal water pumps, the third manual butterfly valve 42 is closed to prevent water from flowing back to the centrifugal water pump, the fourth manual butterfly valve 43, the fifth manual butterfly valve 44 and the sixth manual butterfly valve 45 have similar functions to the third manual butterfly valve 42.

[0037] As Figure 1 shown, the water supply pipe 23 is connected to the first sedimentation tank 27, the first sedimentation tank 27 inlet is provided with a second check valve 25 and a first concentration detection sensor 26, the first sedimentation tank 27 is provided with a first liquid level detection sensor 28, the first concentration detection sensor 26 is convenient for detecting the concentration, turbidity and turbidity particle distribution of the first sedimentation tank 27; the first liquid level detection sensor 28 is convenient for detecting the high and low of the first sedimentation tank liquid level; the first sedimentation tank 27 bottom is provided with a first sewage pipe 24, the first sedimentation tank 27 outlet is connected to the second sedimentation tank 31 through the first overflow pipe 29, the second sedimentation tank 31 inlet is provided with a second concentration detection sensor 30, the second sedimentation tank 31 is provided with a second liquid level detection sensor 32, the second sedimentation tank 31 bottom is provided with a second sewage pipe 46, the second concentration detection sensor 30 is convenient for detecting the concentration, turbidity and turbidity particle distribution of the second sedimentation tank 31; the second liquid level detection sensor 32 is convenient for detecting the high and low of the second sedimentation tank 31 liquid level; the second sedimentation tank 31 is connected to the first clear water tank 35 through the second overflow pipe 33, the first clear water tank 35 is provided with a third liquid level detection sensor 34, the first clear water tank 35 bottom is provided with a third sewage pipe 47, the first clear water tank 35 outlet is provided with a third concentration detection sensor 36, the third liquid level detection sensor 34 is convenient for detecting the high and low of the first clear water tank 35 liquid level, the third concentration detection sensor 36 is convenient for detecting the concentration, turbidity and turbidity particle distribution of the first clear water tank 35 outlet; the first clear water tank 35 is connected to the second clear water tank 39 through the third overflow pipe 37, the front end of the first overflow pipe 29, the second overflow pipe 33 and the third overflow pipe 37 is provided with a screen, the screen material is 304 stainless steel screen, the installation angle is 30°-60°, the screen hole size is 5x3mm, the screen is convenient for filtering and separating sundries; the second clear water tank 39 is provided with a fourth liquid level detection sensor 38, the second clear water tank 39 bottom is provided with a fourth sewage pipe 48, the second clear water tank 39 side wall center is connected to the water outlet pipe 40, the second clear water tank water outlet pipe 40 end is provided with a fourth concentration detection sensor 41, the fourth liquid level detection sensor 38 is convenient for detecting the high and low of the second clear water tank 39 liquid level, the fourth concentration detection sensor 41 is convenient for detecting the concentration, turbidity and turbidity particle distribution of the second clear water tank 39 outlet, the water outlet pipe 40 is used for providing industrial production water or on-site water; the first sewage pipe 24, the second sewage pipe 46, the third sewage pipe 47 and the fourth sewage pipe 48 are convenient for regular flushing and mud discharge, the first clear water tank 35 and the second clear water tank 39 are cleaned and flushed once a year, the first sedimentation tank 27 and the second sedimentation tank 31 are cleaned and flushed once a quarter, the cycle is different.

[0038] Based on the above-mentioned sinking well water suction pumping device pumping method, the specific steps are as follows:

[0039] S1: impeller 3 is automatically rotated by strong suction of centrifugal water pump 16 without motor driving, river water 5 enters water tank 2 through impeller 3 and centrifugal water pump 16, is filtered through screen, and impeller 3 is agitated;

[0040] S2: river water 5 enters suction pipe 8, water supply pipe 23, second check valve 25, first sediment tank 27, second sediment tank 31, first clean water tank 35 and second clean water tank 39 in sequence through pumping action of impeller 3 and centrifugal water pump 16, and provides industrial water through water outlet pipe 40, with increase of pumping amount and pressure of centrifugal water pump 16, water enters first clean water tank 35 and second clean water tank 39 from first overflow pipe 29 and second overflow pipe 33 at top of first sediment tank 27 and second sediment tank 31 in sequence, and interlocking is performed in combination of river water concentration detection sensor 4, river water liquid level detection sensor 6, first concentration detection sensor 26, first liquid level detection sensor 28, second concentration detection sensor 30, second liquid level detection sensor 32, third concentration detection sensor 36, third liquid level detection sensor 34, fourth concentration detection sensor 41, fourth liquid level detection sensor 38, electric ball valve 12, first electric butterfly valve 11, second electric butterfly valve 15, third electric butterfly valve 20, centrifugal water pump 16, first check valve 18, second check valve 25 and controller, to drive automatic intelligent caisson water suction pumping production intelligent logic programming PLC control line of river water—filtration—agitation—water suction—pumping—sedimentation—overflow, and the whole process of filtering, conveying, sedimentation, separation and overflow of river water is an automatic detection and perception intelligent logic programming PLC control process; the pumping concentration of river water is 1-5%, the impurity is 1-5%, the pumping flow is Q=3000-15000 m³ / h, the pumping pressure is 0.5-0.8 Mpa, the average specific gravity of river water is 1.01-1.09 t / m³, after implementation, the continuity of river water pumping is ensured, the river water conveying pressure is stabilized, and the problems of blockage, wear, turbulence, large vibration and additional load of water supply pipe are prevented;

[0041] S3: According to the liquid level of the first and second sedimentation tanks 27 and 31, the water is automatically pumped intelligently: the first and second liquid level detection sensors 28 and 32 automatically detect and intelligently control the liquid level of the first and second sedimentation tanks 27 and 31, and set the variable frequency motor operating parameters of the centrifugal water pump 16 and the liquid level detection sensor PLC interlocking of the first and second sedimentation tanks 27 and 31, realize logic programming and intelligent control; when the first and second liquid level detection sensors 28 and 32 automatically detect and intelligently control the liquid level of the first and second sedimentation tanks 27 and 31 between the first and second overflow pipes 29 and 33, maintain the existing operating frequency of the centrifugal water pump 16, and automatically pump water at normal frequency; when the first and second liquid level detection sensors 28 and 32 automatically detect and intelligently control the liquid level of the first and second sedimentation tanks 27 and 31 below the position of the first and second overflow pipes 29 and 33, automatically increase the frequency and operating speed of the centrifugal water pump 16 variable frequency motor, automatically increase the water supply (speed is proportional to water supply), until the liquid level of the first and second sedimentation tanks 27 and 31 gradually rises to the position of the first and second overflow pipes 29 and 33; when the first and second liquid level detection sensors 28 and 32 automatically detect and intelligently control the liquid level of the first and second sedimentation tanks 27 and 31 above the position of the first and second overflow pipes 29 and 33, automatically reduce the frequency and operating speed of the centrifugal water pump 16 variable frequency motor, reduce the water supply, until the liquid level of the first and second sedimentation tanks 27 and 31 gradually decreases to approach the position of the first and second overflow pipes 29 and 33, and then restore normal frequency operation; in addition, when the production water demand increases, the frequency and operating speed of the four centrifugal water pumps 16 variable frequency motors are automatically increased by computer instructions to increase the water supply, until the overflow water of the first and second sedimentation tanks 27 and 31 increases, further increasing the production water supply;

[0042] S4: According to the concentration of the liquid in the first and second sedimentation tanks 27 and 31, the automatic intelligent pump water: the first and second concentration detection sensors 26 and 30 automatically detect and intelligently control the concentration of the liquid in the first and second sedimentation tanks 27 and 31, and set the variable frequency motor operating parameters of the centrifugal water pump 16 in interlock with the PLC of the first and second concentration detection sensors in the first and second sedimentation tanks 27 and 31, realize logic programming and intelligent control; When the first and second concentration detection sensors 26 and 30 automatically detect and intelligently control the water concentration at the inlet of the first and second sedimentation tanks 27 and 31 <5%, the existing operating frequency of the centrifugal water pump 16 is stable, and the normal frequency pumping is carried out; When the first and second concentration detection sensors 26 and 30 automatically detect and intelligently control the water concentration at the inlet of the first and second sedimentation tanks 27 and 31 5% < river water concentration <8%, an alarm signal is sent, and whether it needs to stop pumping is determined by artificial; When the first and second concentration detection sensors 26 and 30 detect the river water concentration at the inlet of the first and second sedimentation tanks 27 and 31 >8%, an alarm signal is sent, and the machine is automatically stopped after 60 seconds, preventing the centrifugal water pump 16 from sucking high-concentration river water, clogging the pipeline and valve, wearing the pump shell and impeller 3, and prolonging the service life of spare parts;

[0043] S5: According to the height of the river water 5 liquid level, the automatic intelligent pump water: the river water level detection sensor 6 automatically detects and intelligently controls the height of the river water level, and sets the variable frequency motor operating parameters of the centrifugal water pump 16 in interlock with the PLC of the river water level detection sensor 6, realizes logic programming and intelligent control, when the river water level detection sensor 6 automatically detects and intelligently controls the river water level higher than the top of the water tank 2, the existing operating frequency of the centrifugal water pump 16 is maintained, and the normal frequency pumping is carried out; When the river water level detection sensor 6 automatically detects and intelligently controls the river water 5 liquid level lower than the top of the water tank 2 by 100-300 mm, the frequency and operating speed of the variable frequency motor of the centrifugal water pump 16 is automatically reduced, the water supply is reduced, and the upstream is notified to open the water release until the river water 5 liquid level gradually rises to the top position of the centrifugal water pump 16; When the river water level detection sensor 6 automatically detects and intelligently controls the river water level lower than the top of the water suction pipe 8 by 10-50 mm, the centrifugal water pump 16 is automatically stopped, the early failure safety accidents such as large equipment vibration, impeller rupture and pump body cracking caused by centrifugal water pump 16 suction, cavitation and turbulence are eliminated, and the upstream is notified to open more gates to increase the water release;

[0044] S6: According to the concentration of river water, the automatic intelligent pump water: the river water concentration detection sensor 4 automatically detects the concentration of river water near the water tank and intelligently controls the variable frequency motor operation parameters of the centrifugal water pump 16 and the PLC interlocking of the river water concentration detection sensor 4, realizes logic programming and intelligent control, when the river water concentration detection sensor 4 automatically detects and intelligently controls the water concentration of the water tank 2 inlet hole <5%, the existing running frequency of the centrifugal water pump 16 is stable, and the normal frequency pump water is realized; When the river water concentration detection sensor 4 automatically detects and intelligently controls the water concentration of the water tank 2 inlet hole 5% < river water concentration < 8%, an alarm signal is sent, whether the pump water needs to be stopped is determined by manual; When the river water concentration detection sensor 4 detects the water concentration of the water tank 2 inlet hole > 8%, an alarm signal is sent after 60 seconds, and the centrifugal water pump 16 is automatically stopped to prevent the centrifugal water pump 16 from sucking high-concentration river water, clogging the pipeline and valve, wearing the pump shell and impeller 3, and prolonging the service life of the spare parts;

[0045] S7: When the river water concentration detection sensor 4 automatically detects and intelligently controls the water concentration of the water tank 2 inlet hole > 5%, and sets the variable frequency motor of the electric flushing valve 17 and the centrifugal water pump 16 and the PLC interlocking of the river water concentration detection sensor 4, realizes logic programming and intelligent control, automatically opens the electric flushing valve 17 of the flushing pipe 7 at the bottom of the water tank 2, realizes the automatic flushing of the nozzle at the head of the flushing pipe 7 under high-pressure water; In addition, when the system is stopped for maintenance, the sludge under the water tank 2 is periodically flushed to ensure that the area 5-10m under the water tank is clean and free of sludge.

Claims

1. A caisson water suction pumping device, characterized in that, The system includes a filtration mechanism, a pumping mechanism, a sedimentation separation mechanism, and a controller. The filtration mechanism is placed in river water, and river water concentration and level sensors are installed within the water. The pumping mechanism is placed in a well. The filtration mechanism includes a water tank, and the pumping mechanism includes a centrifugal water pump. The sedimentation separation mechanism includes a first sedimentation tank and a second sedimentation tank. The water tank has an inlet hole on its wall, and a steel frame is welded inside. A screen is fixed to the outside of the tank using bolts and pressure plates. A support column is fixed to the bottom of the tank, and a base plate is fixed to the bottom of the support column. A suction pipe is connected to the right side of the tank, and an impeller is fixed to the central frame of the tank. The impeller faces the suction pipe, the other end of which is connected to the inlet of the centrifugal water pump. A first connector connects the suction pipe and the centrifugal water pump. The number of suction pipes matches the number of pipes on the left side of the first connector, and the number of centrifugal water pumps matches the number of pipes on the right side of the first connector. The left side of the first connector is equipped with an electric ball valve and an electric butterfly valve, while the right side is equipped with a manual butterfly valve and an electric butterfly valve. A flushing pipe is connected to the bottom of the water tank, the other end of which is connected to the outlet of the centrifugal water pump. An electric flushing valve is installed on the flushing pipe. The outlet of the centrifugal water pump is connected to a water supply pipe, which is connected to a first sedimentation tank. The inlet of the first sedimentation tank is equipped with a check valve and a concentration detector. The first sedimentation tank is equipped with a level sensor and a drain pipe at its bottom. The outlet of the first sedimentation tank is connected to the second sedimentation tank via an overflow pipe. The second sedimentation tank has a concentration sensor at its inlet. The second sedimentation tank also has a level sensor and a drain pipe at its bottom. The second sedimentation tank is connected to the first clear water tank via an overflow pipe. The first clear water tank also has a level sensor and a drain pipe at its bottom. The outlet of the first clear water tank is equipped with a concentration sensor. The first clear water tank is connected to the second clear water tank via an overflow pipe. The second clear water tank has a level sensor and a drain pipe at its bottom. The second clear water tank is connected to the second clear water tank via an overflow pipe. The system includes a sewage pipe and an outlet pipe connected to the center of the side wall of the second clear water tank. A concentration sensor is installed at the end of the outlet pipe in the second clear water tank. The variable frequency motors of the electric butterfly valve, electric ball valve, and centrifugal water pump are all connected to the controller. The electric butterfly valve, electric ball valve, centrifugal water pump, and each concentration sensor and liquid level sensor are interlocked with the PLC to achieve logic programming and intelligent control. Based on the liquid level and concentration sensing, the system can automatically and intelligently control the flow rate and pressure of the centrifugal water pump. The impeller rotates automatically due to the strong suction of the centrifugal water pump, without the need for a motor drive. River water enters the water tank through the impeller and centrifugal water pump, is filtered through a screen, and is agitated by the impeller.

2. The caisson water suction pumping device according to claim 1, characterized in that, The impeller, flushing pipe, suction pipe, and centrifugal water pump are all in multiple sets.

3. The caisson water suction pumping device according to claim 2, characterized in that, The water suction pipe is poured into the inner wall of the caisson.

4. The caisson water suction pumping device according to claim 3, characterized in that, The nozzles are evenly spaced at the end of the flushing pipe.

5. A caisson water suction pumping device according to claim 4, characterized in that, The centrifugal water pump outlet is connected to the water supply pipe in sequence by a check valve, a manual butterfly valve, an electric butterfly valve, a second connector, and a third connector. The check valve is connected to the controller and interlocked with each concentration detection sensor and liquid level detection sensor PLC.

6. The caisson water suction pumping device according to claim 5, characterized in that, The first connector has two pipes on the left and four pipes on the right, with a manual butterfly valve in the middle.

7. A caisson water suction pumping device according to claim 6, characterized in that, The second connector is connected to the third connector. The second connector has four pipes on the left and two pipes on the right, with a manual butterfly valve in the middle. The third connector has two pipes on the left and one pipe on the right, with two manual butterfly valves in the middle. The right side of the second connector is connected to the left side of the third connector, and the right side pipe of the third connector is connected to the water supply pipe.

8. A caisson water suction pumping device according to claim 7, characterized in that, The water supply angle of the water supply pipe is <90°.

9. A pumping method based on the caisson water suction pumping device according to claim 8, characterized in that, The specific steps are as follows: S1: The impeller rotates automatically due to the strong suction of the centrifugal water pump, without the need for a motor drive. River water enters the water tank through the impeller and the centrifugal water pump, is filtered through the screen, and is agitated by the impeller. S2: River water is pumped sequentially by an impeller and a centrifugal pump into the suction pipe, supply pipe, check valve, first sedimentation tank, second sedimentation tank, first clear water tank, and second clear water tank. Industrial water is supplied by the outlet pipe. As the pumping volume and pressure of the centrifugal pump increase, water overflows from the top of the first and second sedimentation tanks into the first and second clear water tanks. The system is interlocked with concentration sensors, level sensors, electric ball valves, electric butterfly valves, centrifugal pumps, check valves, and controllers to drive an automatic intelligent well suction pumping production line that controls the entire process of filtering, conveying, settling, separating, and overflowing river water. The entire process of filtering, conveying, settling, separating, and overflowing river water is an automatic detection and sensing process controlled by an intelligent logic programming PLC. S3: Automatic intelligent water pumping based on the liquid levels of the first and second sedimentation tanks: The liquid level detection sensor automatically detects and intelligently controls the liquid levels of the first and second sedimentation tanks, and sets the variable frequency motor operating parameters of the centrifugal water pump to interlock with the PLC of the liquid level detection sensors of the first and second sedimentation tanks, realizing logic programming and intelligent control; when the liquid level detection sensor automatically detects and intelligently controls the liquid levels of the first and second sedimentation tanks to be between the overflow pipe and the above and below, the centrifugal water pump maintains its existing operating frequency and automatically pumps water at the normal frequency; when the liquid level detection sensor automatically detects and intelligently controls the liquid levels of the first and second sedimentation tanks to be below the overflow pipe, it automatically raises the pump. The frequency and operating speed of the centrifugal water pump variable frequency motor automatically increase the water supply until the liquid levels in the first and second sedimentation tanks gradually rise to the overflow pipe position. When the liquid level detection sensor automatically detects and intelligently controls the liquid levels in the first and second sedimentation tanks to be higher than the overflow pipe position, the frequency and operating speed of the centrifugal water pump variable frequency motor are automatically reduced to decrease the water supply until the liquid levels in the first and second sedimentation tanks gradually decrease to approach the overflow pipe position, at which point normal frequency operation is resumed. In addition, when the production water demand increases, the frequency and operating speed of 2 to 6 centrifugal water pump variable frequency motors are automatically increased through computer commands to increase the water supply until the overflow water in the first and second sedimentation tanks increases, further increasing the production water supply. S4: Based on the liquid concentration in the first and second sedimentation tanks, automatic intelligent water pumping is implemented: Concentration detection sensors automatically detect and intelligently control the liquid concentration in the first and second sedimentation tanks, and the variable frequency motor operating parameters of the centrifugal water pump are interlocked with the PLC of the liquid concentration detection sensors in the first and second sedimentation tanks to achieve logic programming and intelligent control; when the liquid concentration detection sensors detect and intelligently control that the water concentration at the inlet of the first and second sedimentation tanks is <5%, the centrifugal water pump stabilizes its existing operating frequency and pumps water at normal frequency; when the concentration detection sensors detect and intelligently control that the river water concentration at the inlet of the first and second sedimentation tanks is 5% < < 8%, an alarm signal is issued, and manual judgment is required to stop pumping; when the concentration detection sensors detect that the river water concentration at the inlet of the first and second sedimentation tanks is >8%, an alarm signal is issued, and the pump automatically stops after 60 seconds. S5: Automatic intelligent water pumping based on river water level: The river water level detection sensor automatically detects and intelligently controls the river water level, and sets the variable frequency motor operating parameters of the centrifugal pump to interlock with the PLC of the river water level detection sensor to achieve logic programming and intelligent control. When the river water level detection sensor detects and intelligently controls the river water level to be higher than the top of the water tank, the centrifugal pump maintains its existing operating frequency and pumps water at the normal frequency. When the river water level detection sensor detects and intelligently controls the river water level to be 100-300mm lower than the top of the water tank, the variable frequency motor frequency and operating speed of the centrifugal pump are automatically reduced to decrease the water supply, and the upstream gate is notified to open to release water until the river water level gradually rises to the top of the centrifugal pump. When the river water level detection sensor detects and intelligently controls the river water level to be 10-50mm lower than the top of the suction pipe, the centrifugal pump is automatically stopped, and the upstream gate is notified to open more gates to increase the water release. S6: Automatic intelligent water pumping based on river water concentration: The river water concentration detection sensor automatically detects and intelligently controls the river water concentration near the water tank, and sets the variable frequency motor operating parameters of the centrifugal water pump to interlock with the PLC of the river water concentration detection sensor to achieve logic programming and intelligent control. When the river water concentration detection sensor detects and intelligently controls the water concentration at the water tank inlet to <5%, the centrifugal water pump stabilizes its existing operating frequency and pumps water at the normal frequency. When the river water concentration detection sensor detects and intelligently controls the water concentration at the river inlet to 5% < < 8%, an alarm signal is issued, and manual judgment is required to stop pumping. When the river water concentration detection sensor detects that the river water concentration at the water tank inlet is >8%, an alarm signal is issued, and the pump automatically stops after 60 seconds. S7: When the river water concentration detection sensor automatically detects and intelligently controls the water inlet of the water tank to a concentration greater than 5%, and sets up an electric flushing valve, a variable frequency motor for the centrifugal water pump, and a PLC for the river water concentration detection sensor to interlock, logic programming and intelligent control are achieved. The electric flushing valve on the flushing pipe at the bottom of the water tank is automatically opened, so that the nozzle at the head of the flushing pipe is automatically flushed under high pressure water. In addition, when the system is shut down for maintenance, the sludge at the bottom of the water tank is flushed regularly to ensure that the bottom 5-10m of the water tank is clean and free of sludge.

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