CN105297669A - Draining and irrigating system - Google Patents
Draining and irrigating system Download PDFInfo
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- CN105297669A CN105297669A CN201510650876.5A CN201510650876A CN105297669A CN 105297669 A CN105297669 A CN 105297669A CN 201510650876 A CN201510650876 A CN 201510650876A CN 105297669 A CN105297669 A CN 105297669A
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Abstract
The invention discloses a draining and irrigating system. The draining and irrigating system comprises an irrigating system, a waterlogging draining system, an electricity generating system, a navigation water system, a living water system, an industrial water system and an auxiliary equipment system, wherein the irrigating system comprises a river water pumping guiding system and a river water gravitational flow guiding system; the waterlogging draining system is used for providing a deposited water pumping draining channel; the electricity generating system is used for utilizing the reverse rotating of a reversible generator unit to generate electricity; the navigation water system is used for guaranteeing normal navigation water supply for a navigation course; the living water system is used for guaranteeing living water supply; the industrial water system is used for guaranteeing industrial water supply; and the auxiliary equipment system comprises a water supply system, a water draining system, an oil system, a compressed air system, an ejecting and braking system and a vacuum pumping system. The draining and irrigating system can irrigate land, can drain water, can transfer and guide water across basins, also can utilize the reverse rotating and idle rotating of the water pump to generate electricity and realizes the purposes of irrigating through pumping, draining through pumping and guiding river water through gravitational flow.
Description
Technical field
The present invention relates to a kind of irrigation and drainage system, belong to hydrotechnics field.
Background technology
Water conservancy, as important infrastructure, occupies an important position in modernization of the country construction.How to coordinate the relation of water conservancy and other industry development scales, layout, structure, speed; guarantee that water conservancy and the national economic development obtain dynamic coordinate, the person that is water conservancy working need to plan as a whole rural water conservancy, control flood and drain flooded fields, system engineering that the many factors such as Water Resources Allocation, water environment protection considers.Current, the outstanding problem that water conservancy construction exists comprise flood threat, insufficient water sources can be utilized, agriculture fills with that system supporting rate is lower, exhausting water consumption quota there are differences, the contradiction of supply and demand for the water resource is outstanding, water environment comprehensive load capacity is not high, small hydraulic project lacks overall planning and Water Conservancy Information system Construction such as to fall behind at the many aspects.How reasonable development, efficiency utilization, the comprehensive regulation can be carried out to water resource, to distribute rationally, effectively save, active protection and effectively managing, be the important topic of pendulum in face of vast water conservancy working person.
Existing multiple irrigation emitter unit in prior art, such as document CN202425403U discloses a kind of irrigation emitter unit, comprise base, the close wherein Tiao Bian edge of described base upper surface is provided with the pump housing, base upper surface is provided with bracing frame near a Tiao Bian edge relative with the pump housing, also comprise irrigation and drainage frame, described irrigation and drainage frame is wherein connected with the pump housing by pipeline one end, the irrigation and drainage frame other end is fixed on bracing frame upper surface, base lower surface four angles are provided with universal wheel, and base lower surface is provided with spiral lifting fore-set near the position of universal wheel.Described irrigation and drainage frame comprises the first longitudinal tubule (L tubule) and the second longitudinal tubule (L tubule), and described first longitudinal tubule (L tubule) and the second longitudinal tubule (L tubule) be arranged in parallel, and the first longitudinal tubule (L tubule) is all connected with pipeline with the second longitudinal tubule (L tubule), and the first longitudinal tubule (L tubule) and the second longitudinal tubule (L tubule) are respectively equipped with several transverse tube with nozzle.The pipeline of described connection irrigation and drainage frame wherein one end and the pump housing is provided with one way valve.
Document CN101914909A discloses a kind of multifunctional irrigation and drainage system, and by irrigation and drainage ditch 1, switch lock 2 and switch lock 3 and form, the quarter bend that irrigation and drainage ditch 1 has to protrude into field, switches lock 3 and be positioned at quarter bend bottom by field side, switches lock 2 and is positioned at quarter bend and goes out curved mouth; Irrigation and drainage ditch 1 is laid along isohypse or perpendicular to isohypse at hilly area, and lay along the raised path through fields at Pingba or plains region, irrigation and drainage ditch 1, except situation about laying perpendicular to isohypse, need keep the ratio of 1 ~ 2% to fall, and makes field irrigation, draining is smooth and easy; Irrigation and drainage ditch 1 bottom of trench is at least lower than face, field 20cm (being beneficial to field drainage), and irrigation and drainage ditch 1 ditch top is at least higher than face, field 20cm (to ensure field irrigation).When current are by field, control field irrigation and drainage demand by the switching lock 2,3 arranged in open and close irrigation and drainage system.Channel specification can be increased according to ensurance probability of irrigation water when field irrigation area is larger, when dewatering needs is larger, can suitably increase channel specification according to the standard of drainning off floodwaters, to ensure field irrigation, drainage requirement.
But above prior art does not all consider the correlation of flood and field irrigation, living water use, industrial water use as a whole, the comprehensive utilization of drainage and irrigation equipment is not considered yet, particularly the impact of water yield change on drainage and irrigation equipment of natural rivers Various Seasonal, can not meet the composite request of modernization of water resources.
Summary of the invention
The present invention, in order to solve the problem, provides a kind of novel irrigation and drainage system.
Irrigation and drainage system of the present invention comprises irrigation system, drainage system, electricity generation system, water-use for navigation system, domestic water system, industrial water system and auxiliary equipment system, wherein irrigation system comprises taking out and draws River Drainage gravity flow of unifying and draw river system, described taking out draws river system for drawing water as riparian area provides water source in the Congjiang, and described gravity flow draws river system for when river water level is higher than designated water level, and gravity flow draws river for riparian area field irrigation; Described drainage system is used for providing pump drainage ponding outlet, reduces outer stream stage, accelerates water-break speed, ensures embankment safety; Described electricity generation system is used for meeting under the prerequisite that Irrigation Project Design requires, utilize Reversible Machinery Group to reverse generating, tail water is further used for Irrigation Project Design; Described water-use for navigation system is for ensureing the normal water-use for navigation in navigation channel; Described domestic water system is used for providing living water; Described industrial water system is for ensureing indusqtrial water supply; Described auxiliary equipment system comprises water system, drainage system, oil system, compressed air system, top car and brakes and pumped vacuum systems; Described water system is used for providing unit water, comprises the quench of the water-filling of the pump water inlet after the lubrication water of unit, cooling water, unit maintenance and plant and equipment, cleaning and living water use; Described water system comprises cooling water system and to unify lubrication water system; Described cooling water system is used for providing pressure cooling water for the oil cooler be arranged in main motor oil groove, and oil cooler absorbs heat from the thrust bearing of motor and the lubrication oil of guide bearing, reduces the temperature of lubrication oil and bearing; Described lubrication water system provides lubrication water for unit, comprises the water lubrication of rubber shaft bearing and the water lubrication of water pilot bearing sealing; Described drainage system, for discharging the ponding in unit station, comprises the work backwater of unit, catchmenting and shrinkage joint percolating water in the backwater of percolating water that feed pump produces, the maintenance percolating water of valve, water system, water feeding of water pump runner; Described oil system comprises lubricating oil system, pressure oil system and oil treatment system, wherein lubricating oil system comprises the lubricating oil system of main motor and the lubricating oil system of feed pump, and the lubricating oil system of main motor is for lubricating main motor and dispelling the heat in the thrust bearing shoe of main motor and guide bearing block running because fricative heat passes to oil cooler; The lubricating oil system of feed pump is for lubricating metal oil bearing and the guide bearing of pumps of feed pump; Described pressure oil system provides energy for regulating mechanism for water pump vanes, is made up of oil gear and oil acceptor, and oil gear is made up of pressure oil tank, oil sump tank, electric oil pump and pipeline valve; Oil acceptor is made up of oil head body and distributing valve; Described oil treatment system is used for carrying out centralized and unified evolution process to lubrication oil and insulating oil, utilizes pressure type oil filter elimination mechanical admixture, utilizes vacuum oil filtering device elimination moisture; Lubrication oil and insulating oil are warmed to 70 DEG C by vacuum oil filtering device, utilize pressure atomisation in vacuum cylinder, the moisture in oil is evaporated, utilizes vacuum in vacuum pump holding cylinder, pump moisture simultaneously; Described compressed air system is used for pressure oil tank supply compressed air, and supply makes the compressed air of the brake gear of compressor emergency shutdown; Described top car and brakes utilize oil pump to brake conveying liquid force feed, the rotor of jack-up motor, reduce the frictional resistance of thrust bearing; In the process shut down at unit in addition, utilize brake gear to input the compressed air of 6-8 thousand grams/cm, produce frictional resistance, make the rotor brake of motor; Described pumped vacuum systems is used for the air extracted out before start in outlet pipe, reduces and starts lift, reduce the running time because starting mode of pump seriously cavitates, and makes outlet pipe produce full-section pipe-flow.
The intake pressure of described oil cooler controls 1-2 thousand grams/cm.
Described drainage system comprises drainage pump, and the water inlet pipe entrance of this drainage pump is provided with filter screen, the gate valve that outlet pipe is provided with when supplying maintenance and water inlet pipe is cut off the water supply of this drainage pump.
In described pressure oil tank contain 1/3 pressure oil and 2/3 compressed air, for regulating mechanism for water pump vanes provides pressure energy.
Described oil pump is to the hydraulic oil of brake conveying 100-120 thousand grams/cm.
Described irrigation and drainage system adopts impeller diameter to be that the vertical axial-flow of more than 1560 millimeters regulates water pump entirely, and the full adjusting vane of water pump in the running adjustable range is-12 ° to 8 °.
Described irrigation and drainage system adopts rated power to be greater than the synchronous motor of the rated shaft power of water pump under rated lift and vertical axial-flow regulates water pump supporting entirely, and the staring torque of motor is greater than moment of friction during starting mode of pump.
The Reversible Machinery Group of reversing generating is reversible speed change three-phase synchronous motor, when drawing water, reversible speed change three-phase synchronous motor runs as synchronous motor, and overlook and turn to as clockwise, the active energy that electrical network taken by synchronous motor changes the mechanical energy of drawing water into; When reversing generating, reversible speed change three-phase synchronous motor runs as synchronous generator, and overlook and turn to as counterclockwise, the mechanical energy that arbor transmits is electric energy by synchronous generator.
When described reversible speed change three-phase synchronous motor runs as synchronous motor, capacity is 1600 kilowatts, and specified stator voltage is 6000 volts, and rated current is 186 peaces, rated speed is 250 revs/min, number of magnetic poles is 24 poles, and rated excitation voltage is 168.5 volts, and rated exciting current is 197.2 peaces, rotor maximum permissible temperature is 130 DEG C, staring torque is 70.4 tons of rice, and leading into moment is 71 tons of rice, and flywheel moment is 49.8 tons square metres.
When described reversible speed change three-phase synchronous motor runs as synchronous generator, capacity is 750 kilovolt-amperes, specified stator voltage is 6300 volts, rated current is 68.8 peaces, and rated speed is 125 revs/min, and number of magnetic poles is 48 poles, rated excitation voltage is 148 volts, rated exciting current is 173 peaces, and rotor maximum permissible temperature is 130 DEG C, and flywheel moment is 49.8 tons square metres.
Beneficial effect of the present invention is:
Irrigation and drainage system of the present invention compared with prior art, flood and field irrigation are considered, living water use, the correlation of industrial water use, take into full account the comprehensive utilization of drainage and irrigation equipment, be specially adapted to flood prone areas, and the uneven area of water resource distribution, can irrigate, energy draining, energy distruting water transregionally diversion, irrigate, flood control, water drainage, shipping fully utilizes, water pump can also be utilized to reverse, idle running generates electricity, accomplish multi-purpose water, one lock is multiplex, one station is multiplex, comprehensive utilization, the comprehensive regulation, meet non-irrigated diversion, meet flooded draining, achieve and take out filling, the object in river is drawn in pump drainage and gravity flow.
Accompanying drawing explanation
Fig. 1 is the overall schematic of irrigation and drainage system of the present invention.
Fig. 2 is the schematic diagram of the oil system of irrigation and drainage system of the present invention.
Detailed description of the invention
Be clearly and completely described the technical scheme in the application below in conjunction with accompanying drawing, obviously, described embodiment is only a part of embodiment of the application, instead of whole embodiments.Based on the embodiment in the application, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of the application's protection.
Embodiment one
As shown in Figure 1: irrigation and drainage system of the present invention comprises irrigation system, drainage system, electricity generation system, water-use for navigation system, domestic water system, industrial water system and auxiliary equipment system, wherein irrigation system comprises taking out and draws River Drainage gravity flow of unifying and draw river system, described taking out draws river system for drawing water as riparian area provides water source in the Congjiang, and described gravity flow draws river system for when river water level is higher than designated water level, and gravity flow draws river for riparian area field irrigation; Described drainage system is used for providing pump drainage ponding outlet, reduces outer stream stage, accelerates water-break speed, ensures embankment safety.
It is to be noted, although draw river system name to draw River Drainage gravity flow of unifying as the ingredient of irrigation system above, but those skilled in the art are appreciated that completely, the irrigation and drainage system of the application is not only applicable to riparian area, here " river " should be interpreted broadly, in fact, the natural water such as the river with enough water yields, river, lake naturally existed all can adopt the technical scheme of the application.
Described electricity generation system is used for meeting under the prerequisite that Irrigation Project Design requires, utilize Reversible Machinery Group to reverse generating, tail water is further used for Irrigation Project Design.When natural water (such as river) water is plentiful time, often have a surplus and let out under water, when head is 4 meters, about 3000 kilowatts can be generated electricity, improve unit utilization rate.This scheme is specially adapted to use in rivers intersection, calculates discharge and head by the hydrology, and water pump is reversed and generates electricity, equipment obtains comprehensive utilization.About the design parameter of water pump, will be described in more detail below.
The Reversible Machinery Group that reversing generating adopts is reversible speed change three-phase synchronous motor, when drawing water, reversible speed change three-phase synchronous motor runs as synchronous motor, and overlook and turn to as clockwise, the active energy that electrical network taken by synchronous motor changes the mechanical energy of drawing water into; When reversing generating, reversible speed change three-phase synchronous motor runs as synchronous generator, and overlook and turn to as counterclockwise, the mechanical energy that arbor transmits is electric energy by synchronous generator.
It can thus be appreciated that the Reversible Machinery Group that reversing generating adopts is a kind of special motor.In order to determine the optimum condition of the hydraulic turbine and water pump, design stage applicant, as the optimum condition problem of hydraulic turbine operation, deep test and analog computation are carried out to axial-flow pump, carry out testing and simulating discovery with the water pump model of same impeller diameter and hydraulic turbine model, rotating speed under hydraulic turbine optimum condition is 125 revs/min, is just in time the half of water pump rated speed 250 revs/min.For motor manufacturing, draw water rotating speed 250 revs/min, is hold facile, therefore as preferred embodiment, determines running parameter as described below, simultaneously synchronous motor stator, rotor windings centre tap, to realize speed change during generating with 125 revs/min.
As preferred running parameter, when described reversible speed change three-phase synchronous motor runs as synchronous motor, capacity is 1600 kilowatts, specified stator voltage is 6000 volts, rated current is 186 peaces, and rated speed is 250 revs/min, and number of magnetic poles is 24 poles, rated excitation voltage is 168.5 volts, rated exciting current is 197.2 peaces, and rotor maximum permissible temperature is 130 DEG C, and staring torque is 70.4 tons of rice, leading into moment is 71 tons of rice, and flywheel moment is 49.8 tons square metres.
When described reversible speed change three-phase synchronous motor runs as synchronous generator, capacity is 750 kilovolt-amperes, specified stator voltage is 6300 volts, rated current is 68.8 peaces, and rated speed is 125 revs/min, and number of magnetic poles is 48 poles, rated excitation voltage is 148 volts, rated exciting current is 173 peaces, and rotor maximum permissible temperature is 130 DEG C, and flywheel moment is 49.8 tons square metres.
The rotating speed of reversible speed change three-phase synchronous motor is 250/125 rev/min, and rotating ratio is just 2:1, therefore can realize pole-changing control by fairly simple method.Stator pole-changing can have the absolute coil of different number of pole-pairs by two groups, device in stator slot, also can change the connected mode of coil.
Described water-use for navigation system is for ensureing the normal water-use for navigation in navigation channel; Described domestic water system is used for providing living water; Described industrial water system is for ensureing indusqtrial water supply; Described auxiliary equipment system comprises water system, drainage system, oil system, compressed air system, top car and brakes and pumped vacuum systems; Described water system is used for providing unit water, comprises the quench of the water-filling of the pump water inlet after the lubrication water of unit, cooling water, unit maintenance and plant and equipment, cleaning and living water use; Described water system comprises cooling water system and to unify lubrication water system; Described cooling water system is used for providing pressure cooling water for the oil cooler be arranged in main motor oil groove, and oil cooler absorbs heat from the thrust bearing of motor and the lubrication oil of guide bearing, reduces the temperature of lubrication oil and bearing.Large-scale vertical synchronous motor is in operation process, thrust bearing and guide bearing are because of a part of power of friction consumption, generation heat passes to the lubrication oil in oil groove, cause the continuous rising of oil temperature, as discharged these heats not in time, time to a certain extent, deterioration is gone bad by oil, reduce greasy property, until affect the life-span of bearing, make unit not maintain normal operation.So must manage to discharge from lubrication oil the heat that bearing shell produces because of frictional power loss.Main motor oil groove is built with oil cooler, and the same certain press water, the heat that oil cooler absorbs from lubrication oil, by the transmission of current, reduces the temperature of oil and bearing.General intake pressure is unsuitable excessive in actual use, and excessive not only increasing supplies water capacity, uneconomical, simultaneously large by the pressure of oil cooler, water velocity also corresponding increase in pipe, the wearing and tearing of silt aggravation to pipeline in current, affect its application life, easily water leakage of cooler occurs.But the intake pressure of cooler also can not be made too low, otherwise Long-Time Service, silt is easy to absorption, makes tube wall thickening, affects cooling effect.The intake pressure of the oil cooler described in the present embodiment controls 1-2 thousand grams/cm.
Described lubrication water system provides lubrication water for unit, comprises the water lubrication of rubber shaft bearing and the water lubrication of water pilot bearing sealing.Rubber shaft bearing is by water lubrication, and fricative heat is also walked by lubrication water-band.When drawing water operation, because rubber shaft bearing is soaked in water, water in pump can be leaned on to lubricate, the season of not drawing water, synchronous motor no-load running, because water pump, motor direct-drive, make the independent no-load running of motor, bring the difficulty of motor and water pump split axle shaft coupling, therefore motor and water pump no-load running together during the usual generator operation as synchronous condenser in this area.Because of anhydrous in water pump, just uninterruptedly must supply water to rubber shaft bearing, ensure the lubrication and cooling of rubber shaft bearing.Once interrupt supplying water, rubber and metal dry friction, produce a large amount of heats and cause burning out of bearing shell and journal damage very soon, and therefore lubricating providing of water must be safe and reliable.The water pump of the present embodiment adopts babbit oil bearing, in order to prevent the water in the pump housing from entering in oil bearing, needs sealing device.During generator operation as synchronous condenser, anhydrous in water pump, the lubrication water of leakproof rubber seal must be provided.
Described drainage system, for discharging the ponding in unit station, comprises the work backwater of unit, catchmenting and shrinkage joint percolating water in the backwater of percolating water that feed pump produces, the maintenance percolating water of valve, water system, water feeding of water pump runner.Irrigation and drainage system, when running and overhaul, must discharge intrasystem various water, and these water parts are discharged outside stations, but major part is all pooled to collector drain, is discharged by drainage pump.
As shown in Figure 2, described oil system comprises lubricating oil system, pressure oil system and oil treatment system, wherein lubricating oil system comprises the lubricating oil system of main motor and the lubricating oil system of feed pump, and the lubricating oil system of main motor is for lubricating main motor and dispelling the heat in the thrust bearing shoe of main motor and guide bearing block running because fricative heat passes to oil cooler; The lubricating oil system of feed pump is for lubricating metal oil bearing and the guide bearing of pumps of feed pump; Described pressure oil system provides energy for regulating mechanism for water pump vanes, is made up of oil gear and oil acceptor, and oil gear is made up of pressure oil tank, oil sump tank, electric oil pump and pipeline valve.In described pressure oil tank contain 1/3 pressure oil and 2/3 compressed air, for regulating mechanism for water pump vanes provides pressure energy.Compressed air has elasticity, makes the certain energy of pressure oil contain.
Oil acceptor is made up of oil head body and distributing valve.Pressure oil, by the distribution of distributing valve, is delivered in oil head body, produces the function of adjusting vane.
Described oil treatment system is used for carrying out centralized and unified purified treatment to lubrication oil and insulating oil, utilizes pressure type oil filter elimination mechanical admixture, utilizes vacuum oil filtering device elimination moisture; Lubrication oil and insulating oil are warmed to 70 DEG C by vacuum oil filtering device, utilize pressure atomisation in vacuum cylinder, the moisture in oil is evaporated, utilizes vacuum in vacuum pump holding cylinder, pump moisture simultaneously; Described compressed air system is used for pressure oil tank supply compressed air, and supply makes the compressed air of the brake gear of compressor emergency shutdown.
Described top car and brakes utilize oil pump to brake conveying liquid force feed, the rotor of jack-up motor, reduce the frictional resistance of thrust bearing; In the process shut down at unit in addition, utilize brake gear to input the compressed air of 6-8 thousand grams/cm, produce frictional resistance, make the rotor brake of motor.After unit is stopped using, the oil film between thrust bearing shoe and runner plate can lose gradually, when again carrying out unit starting, because of without oil film between thrust bearing shoe and runner plate, and the bearing shell or increase staring torque and make difficulty in starting of may grinding away.Therefore Large-scale machine set starts Attacking Midfielder and carries out top car, utilize oil pump to brake conveying liquid force feed, the rotor of jack-up motor, thrust bearing shoe and runner plate are thrown off (General Requirements 3-5 millimeter), lubrication oil enters tiling, and then inactive oil pump, the oil-filled frictional resistance decreasing thrust bearing of top car, to unit starting advantageously.Unit is in the process shut down, relation due to inertia force makes unit maintain the running down of certain hour, because rotating speed during running down slowly declines, the time delayed is longer, oil film between easy destruction thrust bearing shoe and runner plate, therefore need to utilize brake gear to input the compressed air of 6-8 thousand grams/cm, produce frictional resistance, make the rotor brake of motor.
Described pumped vacuum systems is used for the air extracted out before start in outlet pipe, reduces and starts lift, reduce the running time because starting mode of pump seriously cavitates, and makes outlet pipe produce full-section pipe-flow.
Described drainage system comprises drainage pump, and because the water of drainage pump position is dirtier, the water inlet pipe entrance of this drainage pump needs to be provided with filter screen, the gate valve that outlet pipe is provided with when supplying maintenance and water inlet pipe is cut off the water supply of this drainage pump.
Described oil pump is to the hydraulic oil of brake conveying 100-120 thousand grams/cm.
Described irrigation and drainage system adopts impeller diameter to be that the vertical axial-flow of more than 1560 millimeters regulates water pump entirely, and the full adjusting vane of water pump in the running adjustable range is-12 ° to 8 °.
Described irrigation and drainage system adopts rated power to be greater than the synchronous motor of the rated shaft power of water pump under rated lift and vertical axial-flow regulates water pump supporting entirely, and the staring torque of motor is greater than moment of friction during starting mode of pump.
Embodiment two
As further preferred embodiment, in the process that unit shuts down, brake gear is utilized to input the compressed air of 7,000 grams/cm; The intake pressure of described oil cooler controls at 1.5 thousand grams/cm; Described oil pump carries the hydraulic oil of 110,000 grams/cm to brake; Described irrigation and drainage system adopts impeller diameter to be that the vertical axial-flow of 2000 millimeters regulates water pump entirely, and the full adjusting vane of water pump in the running adjustable range is-6 °.
Except above content, the structure of the irrigation and drainage system described in embodiment two is identical with the structure of the irrigation and drainage system described in embodiment one.
Embodiment three
As further preferred embodiment, in the process that unit shuts down, brake gear is utilized to input the compressed air of 7.5 thousand grams/cm; The intake pressure of described oil cooler controls at 1.8 thousand grams/cm; Described oil pump carries the hydraulic oil of 105,000 grams/cm to brake; Described irrigation and drainage system adopts impeller diameter to be that the vertical axial-flow of 3000 millimeters regulates water pump entirely, and the full adjusting vane of water pump in the running adjustable range is 4 °.
Except above content, the structure of the irrigation and drainage system described in embodiment three can be identical with the structure of the irrigation and drainage system described in embodiment two with embodiment one, do not repeat them here.
More than show and describe principal character of the present invention and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and manual just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (10)
1. an irrigation and drainage system, it is characterized in that, comprising: irrigation system, drainage system, electricity generation system, water-use for navigation system, domestic water system, industrial water system and auxiliary equipment system, wherein irrigation system comprises taking out and draws River Drainage gravity flow of unifying and draw river system, described taking out draws river system for drawing water as riparian area provides water source in the Congjiang, and described gravity flow draws river system for when river water level is higher than designated water level, and gravity flow draws river for riparian area field irrigation; Described drainage system is used for providing pump drainage ponding outlet, reduces outer stream stage, accelerates water-break speed, ensures embankment safety; Described electricity generation system is used for meeting under the prerequisite that Irrigation Project Design requires, utilize Reversible Machinery Group to reverse generating, tail water is further used for Irrigation Project Design; Described water-use for navigation system is for ensureing the normal water-use for navigation in navigation channel; Described domestic water system is used for providing living water; Described industrial water system is for ensureing indusqtrial water supply; Described auxiliary equipment system comprises water system, drainage system, oil system, compressed air system, top car and brakes and pumped vacuum systems; Described water system is used for providing unit water, comprises the quench of the water-filling of the pump water inlet after the lubrication water of unit, cooling water, unit maintenance and plant and equipment, cleaning and living water use; Described water system comprises cooling water system and to unify lubrication water system; Described cooling water system is used for providing pressure cooling water for the oil cooler be arranged in main motor oil groove, and oil cooler absorbs heat from the thrust bearing of motor and the lubrication oil of guide bearing, reduces the temperature of lubrication oil and bearing; Described lubrication water system provides lubrication water for unit, comprises the water lubrication of rubber shaft bearing and the water lubrication of water pilot bearing sealing; Described drainage system, for discharging the ponding in unit station, comprises the work backwater of unit, catchmenting and shrinkage joint percolating water in the backwater of percolating water that feed pump produces, the maintenance percolating water of valve, water system, water feeding of water pump runner; Described oil system comprises lubricating oil system, pressure oil system and oil treatment system, wherein lubricating oil system comprises the lubricating oil system of main motor and the lubricating oil system of feed pump, and the lubricating oil system of main motor is for lubricating main motor and dispelling the heat in the thrust bearing shoe of main motor and guide bearing block running because fricative heat passes to oil cooler; The lubricating oil system of feed pump is for lubricating metal oil bearing and the guide bearing of pumps of feed pump; Described pressure oil system provides energy for regulating mechanism for water pump vanes, is made up of oil gear and oil acceptor, and oil gear is made up of pressure oil tank, oil sump tank, electric oil pump and pipeline valve; Oil acceptor is made up of oil head body and distributing valve; Described oil treatment system is used for carrying out centralized and unified purified treatment to lubrication oil and insulating oil, utilizes pressure type oil filter elimination mechanical admixture, utilizes vacuum oil filtering device elimination moisture; Lubrication oil and insulating oil are warmed to 70 DEG C by vacuum oil filtering device, utilize pressure atomisation in vacuum cylinder, the moisture in oil is evaporated, utilizes vacuum in vacuum pump holding cylinder, pump moisture simultaneously; Described compressed air system is used for pressure oil tank supply compressed air, and supply makes the compressed air of the brake gear of compressor emergency shutdown; Described top car and brakes utilize oil pump to brake conveying liquid force feed, the rotor of jack-up motor, reduce the frictional resistance of thrust bearing; In the process shut down at unit in addition, utilize brake gear to input the compressed air of 6-8 thousand grams/cm, produce frictional resistance, make the rotor brake of motor; Described pumped vacuum systems is used for the air extracted out before start in outlet pipe, reduces and starts lift, reduce the running time because starting mode of pump seriously cavitates, and makes outlet pipe produce full-section pipe-flow.
2. irrigation and drainage system according to claim 1, is characterized in that, the intake pressure of described oil cooler controls 1-2 thousand grams/cm.
3. irrigation and drainage system according to claim 2, is characterized in that, described drainage system comprises drainage pump, and the water inlet pipe entrance of this drainage pump is provided with filter screen, the gate valve that outlet pipe is provided with when supplying maintenance and water inlet pipe is cut off the water supply of this drainage pump.
4. irrigation and drainage system according to claim 3, is characterized in that, in described pressure oil tank contain 1/3 pressure oil and 2/3 compressed air, for regulating mechanism for water pump vanes provides pressure energy.
5. irrigation and drainage system according to claim 4, is characterized in that, described oil pump is to the hydraulic oil of brake conveying 100-120 thousand grams/cm.
6. irrigation and drainage system according to claim 5, is characterized in that, described irrigation and drainage system adopts impeller diameter to be that the vertical axial-flow of more than 1560 millimeters regulates water pump entirely, and the full adjusting vane of water pump in the running adjustable range is-12 ° to 8 °.
7. irrigation and drainage system according to claim 6, it is characterized in that, described irrigation and drainage system adopts rated power to be greater than the synchronous motor of the rated shaft power of water pump under rated lift and vertical axial-flow regulates water pump supporting entirely, and the staring torque of motor is greater than moment of friction during starting mode of pump.
8. irrigation and drainage system according to claim 7, it is characterized in that, the Reversible Machinery Group of reversing generating is reversible speed change three-phase synchronous motor, when drawing water, reversible speed change three-phase synchronous motor runs as synchronous motor, overlook and turn to as clockwise, the active energy that electrical network taken by synchronous motor changes the mechanical energy of drawing water into; When reversing generating, reversible speed change three-phase synchronous motor runs as synchronous generator, and overlook and turn to as counterclockwise, the mechanical energy that arbor transmits is electric energy by synchronous generator.
9. irrigation and drainage system according to claim 8, it is characterized in that, when described reversible speed change three-phase synchronous motor runs as synchronous motor, capacity is 1600 kilowatts, specified stator voltage is 6000 volts, rated current is 186 peaces, rated speed is 250 revs/min, number of magnetic poles is 24 poles, and rated excitation voltage is 168.5 volts, and rated exciting current is 197.2 peaces, rotor maximum permissible temperature is 130 DEG C, staring torque is 70.4 tons of rice, and leading into moment is 71 tons of rice, and flywheel moment is 49.8 tons square metres.
10. irrigation and drainage system according to claim 9, it is characterized in that, when described reversible speed change three-phase synchronous motor runs as synchronous generator, capacity is 750 kilovolt-amperes, specified stator voltage is 6300 volts, rated current is 68.8 peaces, and rated speed is 125 revs/min, and number of magnetic poles is 48 poles, rated excitation voltage is 148 volts, rated exciting current is 173 peaces, and rotor maximum permissible temperature is 130 DEG C, and flywheel moment is 49.8 tons square metres.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510650876.5A CN105297669B (en) | 2015-10-09 | 2015-10-09 | A kind of irrigation and drainage system |
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| CN106979118A (en) * | 2017-04-20 | 2017-07-25 | 同济大学 | Utilize the energy storage generating system and method for city prevention waterlogging groundwater basin and tunnel |
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