CN105698008A - Accelerated flow energy dissipation and energy feedback device of iron concentrate slurry pipeline and control method of device - Google Patents
Accelerated flow energy dissipation and energy feedback device of iron concentrate slurry pipeline and control method of device Download PDFInfo
- Publication number
- CN105698008A CN105698008A CN201610101474.4A CN201610101474A CN105698008A CN 105698008 A CN105698008 A CN 105698008A CN 201610101474 A CN201610101474 A CN 201610101474A CN 105698008 A CN105698008 A CN 105698008A
- Authority
- CN
- China
- Prior art keywords
- energy
- energy dissipating
- main pipeline
- controller
- pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 239000002002 slurry Substances 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000012141 concentrate Substances 0.000 title claims abstract description 18
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 18
- 230000021715 photosynthesis, light harvesting Effects 0.000 title claims abstract description 15
- 230000001360 synchronised effect Effects 0.000 claims abstract description 29
- 230000008878 coupling Effects 0.000 claims description 20
- 238000010168 coupling process Methods 0.000 claims description 20
- 238000005859 coupling reaction Methods 0.000 claims description 20
- 230000005856 abnormality Effects 0.000 claims description 12
- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 abstract description 4
- 230000008859 change Effects 0.000 description 5
- 238000004146 energy storage Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000013055 pulp slurry Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000002547 anomalous effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/14—Conveying liquids or viscous products by pumping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/20—Arrangements or systems of devices for influencing or altering dynamic characteristics of the systems, e.g. for damping pulsations caused by opening or closing of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Control Of Eletrric Generators (AREA)
- Pipeline Systems (AREA)
Abstract
The invention relates to an accelerated flow energy dissipation and energy feedback device of an iron concentrate slurry pipeline and a control method of the device, and belongs to the technical field of fluid accelerated flow energy dissipation and energy feedback equipment. An auxiliary pipeline is mounted beside a main pipeline, an energy dissipation baffle is mounted on the auxiliary pipeline, and the energy dissipation baffle, an electric knife pulling valve I, an electric knife pulling valve II, a pressure transmitter I, a pressure transmitter II and a gearbox are connected with a controller, and a centrifugal pump is mounted on the main pipeline; the centrifugal pump is connected with the gearbox through a coupler I, and the gearbox is connected with a synchronous generator through a coupler II; the electric energy output end of the synchronous generator is connected with the rectifying input end of a rectifier stack, and the output of the rectifier stack is connected with a charging terminal of a storage battery; the input end of a battery detection module is connected with the output end of the storage battery, and the output end of the battery detection module is connected into the controller; and the rectifier stack is connected with an inverter, and the inverter outputs redundant electric energy to an enterprise inner power network in a grid-connection manner. According to the device and method, long-distance accelerated flow energy dissipation and energy feedback of the iron concentrate slurry pipeline can be achieved.
Description
Technical field
The present invention relates to a kind of iron ore concentrate slurry pipeline and accelerate stream energy dissipating and energy back feed device and control method thereof, belong to fluid and accelerate stream energy dissipating energy feedback equipment technical field。
Background technology
Long-distance slurry pipe-line transportation system is often laid in the mountain area that landform is rugged。Due to the depth displacement of beginning and end or when batch feed the reason such as the difference in specific gravity of ore pulp and water, a kind of FAQs in slurry water mechanical analysis can be caused, namely slurry pipeline accelerates stream。This accelerate producing to be actually and being caused most by unnecessary of stream, the slack flow of a kind of similar open channel would generally be formed when full-section pipe-flow and automatically consumed。This speed accelerating stream can exceed that about order of magnitude of flow velocity of normal full-section pipe-flow, thus causing pipeline erosion to aggravate, is greatly shortened the pipeline life-span。The landform that slurry pipeline is passed, generally all nothing more than being kame-and-kettle topography。Both landform are all likely to produce to accelerate stream。Solve this acceleration flow problem at present mainly to adopt:
1, pipe protection: this method mainly increase wall thickness of pipeline, pipeline are lined。The method effect of energy dissipation is inconspicuous, and adds cost, inconspicuous for long-distance pipe effect of energy dissipation。
2, eliminate and slow down acceleration stream: mainly slowing down the pipeline laying gradient, change conveying process conditions, reduce caliber energy dissipating etc.。The laying pipeline landform of early stage is required height by the method, is difficult to reduce in long-distance transportation through pipeline some gradient along the line and changes conveying technique it is difficult to ensure that the transfer efficiency of pipeline。The reduction of caliber certainly will increase the slurry abrasion to pipeline。
3, back pressure is provided to carry out energy dissipating: this is to eliminate now the main method accelerating stream。The method is the method that energy dissipating is more satisfactory, but the method wastes major part energy, and the energy of energy dissipating is not well reclaimed, and this is a kind of uneconomic mode。
In the middle of long-distance pipe slurry pipeline steel engineering, pipeline is work round-the-clock in normal working conditions, and it is that twenty four hours uninterruptedly carries out that pipeline accelerates stream energy dissipating, and traditional method energy dissipating year in year out wastes substantial amounts of energy。
Summary of the invention
It is an object of the invention to provide a kind of iron ore concentrate slurry pipeline and accelerate stream energy dissipating and energy back feed device and control method thereof, accelerate stream energy dissipating and energy feedback for realizing long-distance iron ore concentrate slurry pipeline。
The technical scheme is that a kind of iron ore concentrate slurry pipeline accelerates stream energy dissipating and energy back feed device, including main pipeline 1, secondary duct 2, electric knives pulls valve I 3, electric knives pulls valve II 4, centrifugal pump 5, pressure transmitter I 6.1, pressure transmitter II 6.2, shaft coupling I 7.1, shaft coupling II 7.2, gearbox 8, synchronous generator 9, commutator group 10, accumulator battery 11, battery detecting module 12, energy dissipating baffle plate 13, controller 14, inverter 15, enterprises electrical network 16；
It is other that described secondary duct 2 is arranged on main pipeline 1, energy dissipating baffle plate 13 is arranged in secondary duct 2, the control input line of energy dissipating baffle plate 13 receives controller 14, electric knives pulls valve I 3, electric knives pulls the keying control line access controller 14 of valve II 4, pressure transmitter I 6.1, the pressure signal of pressure transmitter II 6.2 is input to controller 14, the gearshift adjustment input of gearbox 8 is connected with controller 14, centrifugal pump 5 is arranged on main pipeline 1, the rotating shaft of centrifugal pump 5 is connected by shaft coupling I 7.1 with the driving shaft of gearbox 8, the driven shaft of gearbox 8 is connected by shaft coupling II 7.2 with the rotor shaft of synchronous generator 9, the electric energy output end of synchronous generator 9 connects commutator group 10 rectification input, the output of commutator group 10 connects the charging terminal of accumulator battery 11, the outfan of battery detecting module 12 input and accumulator battery 11 connects, battery detecting module 12 outfan access controller 14, commutator group 10 connects inverter 15 and grid-connected to enterprises electrical network 16 by 15 unnecessary electric energy outputs of inverter。
Described accumulator battery 11 adopts the cell parallel after organizing the series connection of multiple accumulator to form more。
A kind of iron ore concentrate slurry pipeline accelerates the control method of stream energy dissipating and energy back feed device, the charge power P of the accumulator battery 11 that described controller 14 is detected by battery detecting module 12cAccording to efficiency factor η=η1η2Calculate actual energy dissipating power in pulp conveying Calculate energy dissipation ratio again
IfThen main pipeline 1 is under normal energy dissipating operating mode；IfThen main pipeline 1 is under energy dissipating abnormality:
If main pipeline 1 is under energy dissipating abnormality, the head pressure that pressure transmitter II 6.2 records is within positive and negative the 10 of M value, then controller 14 thinks that the devices for dissipation of energy of main pipeline 1 breaks down, controller 14 controls to open the electric knives of secondary duct 2 and pulls valve II 4, starting energy dissipating baffle plate 13 device, the electric knives closing main pipeline 1 pulls valve I 3；
If main pipeline 1 is under energy dissipating abnormality, the head pressure that pressure transmitter II 6.2 records is within positive and negative the 10 of N value, then controller 14 thinks that main pipeline 1 blocks, controller 14 controls to open the electric knives of secondary duct 2 and pulls valve II 4, the electric knives closing main pipeline 1 pulls valve I 3, pulls out all energy dissipating baffle plates 13 of secondary duct 2 simultaneously；
In formula, η1It is the efficiency factor of centrifugal pump 5, η2It is the efficiency factor of synchronous generator 9, PzBeing normally give energy dissipating power, M is feature head pressure during devices for dissipation of energy fault, and N is the main pipeline 1 feature head pressure when blocking。
The operation principle of the present invention is:
From the viewpoint of preservation of energy, the energy dissipator of traditional ore pulp slurry transportation pipeline also corresponds to consume the electric energy of induction system while eliminating ore pulp slurry acceleration stream。This device adopts energy dissipating electrification energy storage mode to carry out energy dissipating and feedback energy。
When nominal situation, controller 14 remotely controls that electric knives pulls valve I 3, electric knives pulls valve II 4 so that electric knives pulls that valve I 3 leaves, electric knives is pulled valve II 4 and closed, and main pipeline 1 is for the feedback accelerating stream energy dissipating and energy of slurry, and now secondary duct 2 is bypassed。When controller 14 detects the special circumstances such as main pipeline 1 breaks down, controller 14 remotely controls that electric knives pulls valve I 3, electric knives pulls valve II 4, electric knives is pulled, and valve I 3 closes, electric knives is pulled valve II 4 and opened, now secondary duct 2 is for accelerating stream energy dissipating passage and not having energy feedback function, and main pipeline 1 is bypassed。The increase of the baffle number of energy dissipating baffle plate 13 and reduce the real-time control of controlled device 14, reaches the real-time energy dissipating power to secondary duct 2 and is adjusted。Pressure transmitter I 6.1, pressure transmitter II 6.2 accelerate the change of pressure head before and after stream energy dissipating for detecting, the high-order pressure head of pressure transmitter I 6.1 detection, and pressure transmitter II 6.2 detects position, end pressure head, head pressure input controller 14。When only using secondary duct 2 energy dissipating, the baffle number that controller 14 can implement to control energy dissipating baffle plate 13 according to the head pressure that the pressure transmitter I 6.1 of input, pressure transmitter II 6.2 record is added and reduces energy dissipating energy dynamically to be controlled。Centrifugal pump 5 impeller adopts ceramic wear-resisting assembly。Centrifugal pump 5 is for reducing the mechanical energy of motion slurry in the big discrepancy in elevation pipeline of distance。The ore pulp of high-speed motion washes away the impeller of centrifugal pump 5 and drives the axle of centrifugal pump 5 to rotate, and the mechanical energy of high pressure ore pulp is converted to the kinetic energy of centrifugal pump 5 impeller。Under ensureing rate of flow of fluid steady-state conditions, weaken ore pulp in pipeline and accelerate stream, reduce the ore pulp abrasion to duct wall, play protective conduit and the effect recovered energy。Centrifugal pump 5 axle is connected by shaft coupling I 7.1 with the driving shaft of gearbox 8, the driven shaft of gearbox 8 is connected by shaft coupling II 7.2 with the rotor shaft of synchronous generator 9, gearbox 8 receives the control signal of controller 14 to change the gear ratio of variator, thus changing centrifugal pump 5 and the rotating ratio of synchronous generator 9, it is ensured that the output voltage of synchronous generator 9 and electric current are in rational interval。When only using main pipeline 1 energy dissipating, controller 14 implements to control the speed increasing ratio of gearbox 8 according to the charge power of input and the difference of the given energy dissipating power of engineering, thus playing the purpose regulating energy dissipating power。The input of the output termination commutator group 10 of synchronous generator 9, the three-phase alternating current that 10 synchronous generators 9 of commutator group export is rectified into direct current, and commutator group 10 adopts three-phase bridge rectification assembly to constitute。
1, energy dissipating method
The energy dissipating part of main pipeline is mainly the part compositions such as centrifugal pump 5, synchronous generator 9 and controller 14。Main pipeline energy dissipating method is as follows: controller 14 pulls valve I 3 unlatching by control electric knives and electric knives is pulled valve II 4 closedown and enabled main pipeline 1 and closedown secondary duct 2, and main pipeline 1 enters energy dissipating pattern。Manual setting controller 14 is the energy dissipating power of main pipeline under energy dissipating pattern。By detecting the charge power of accumulator battery 11, the difference utilizing the charge power of given energy dissipating power and accumulator battery 11 carries out PI and controls the rotating ratio of gearbox, so that the ore pulp energy that centrifugal pump 5 absorbs follows the tracks of the expectation energy dissipating power of manual setting, and then control synchronous generator 9 generates electricity when invariable power, it is achieved synchronous generator 9 generates electricity under given energy dissipating power。So far main pipeline energy dissipating terminates。As shown in Fig. 3 energy dissipating schematic diagram。
The autognostic protection mechanism of main pipeline energy dissipator: learnt by hydrodynamics, constant at internal diameter of the pipeline, during pipeline full-section pipe-flow, when flow is constant, the flow velocity of fluid is constant, and slurry pressure head is subject to frictional resistance, the impact of the factors such as the discrepancy in elevation and change。Pressure transmitter I 6.1, pressure transmitter II 6.2 pressure head parameter reflect the running status of device。Centrifugal pump 5 works long hours and is likely to produce fault, and other equipment also can produce fault simultaneously。Furthermore when blocking occurs pipeline, main pipeline 1 just should be bypassed timely, to avoid line clogging to bring heavy losses。These fault main manifestations be the charge power of actual accumulator battery less than presetting power, the parameter fluctuation of pressure transmitter is relatively big, is namely that energy dissipation ratio diminishes。Main pipeline generation Novel presentation is two aspects once: one is main pipeline devices for dissipation of energy fault, have ore pulp to flow through centrifugal pump, but electromotor does not have generated output to export；Two is that pipeline blocks, and main pipeline devices for dissipation of energy does not have ore pulp to flow through, and electromotor does not have generated output to export。Operating process when summary main pipeline energy dissipator breaks down is: controller is according to the charge power of actual accumulator battery less than presetting energy dissipating power, and the feature of pressure transmitter II 6.2 parameter changes, it is judged that abnormal for main pipeline energy dissipation。
When detecting that main pipeline 1 devices for dissipation of energy is abnormal, now enabling secondary duct 2 energy dissipating, bypass main pipeline 1, the electric knives opening secondary duct 2 pulls valve II 4, the electric knives closing main pipeline 1 pulls valve I 3, and controller 14 adds automatically according to energy dissipating size requirements and reduces the quantity of energy dissipating baffle plate 13。
When detecting that main pipeline 1 blocks, now enable secondary duct 2, bypass main pipeline 1, open electric knives and pull II 4, valve, close electric knives and pull valve I 3, and farthest to reduce the use of pipeline energy dissipation means。When enabling secondary duct 2, controller 14 controls energy dissipating baffle plate 13 and all pulls out, and reduces the pipe-line equipment energy dissipating to slurry as far as possible, is so conducive to the carrying out carrying out getting rid of blocking work。
Sum up according to practical experience, to sum up: as the charge power P checking actual accumulator batterycThe actual energy dissipating power P less than in pulp conveyingsTime, takeIt is necessary to enable secondary duct 2 energy dissipating time (boundary condition of α should be determined according to the efficiency factor of field apparatus and actual operating mode), bypassing main pipeline 1, the electric knives closing main pipeline 1 pulls valve I 3；If Pc< < PsAnd the numerical value difference of pressure transmitter is less, takes α ≈ 0, then pipeline is blocked state, and secondary duct can not energy dissipating。
2, energy feedback method
Energy feedback part includes rectification and energy storage two aspect。Rectification refers to that the alternating current sent forms unidirectional current after commutator after centrifugal pump band engine alternator generates electricity。Energy storage refer to rectification after unidirectional current accumulator battery is charged。The feedback storage of energy depends on the controller 14 current electric quantity to energy storage battery group 11 and is analyzed。Analyzing result is that the next stage to put into the selection of charging and discharging energy storage battery。The constituted mode of accumulator battery adopts following form: be connected into, by polylith accumulator, the battery that capacity is bigger, charging voltage meets the set of cells of rectifier output voltage, such set of cells constitutes an independent charge/discharge unit, then is used parallel by organizing individual battery cells more。As shown in Figure 4, controller 14 can control the rechargeable battery switching of accumulator battery and the switching of discharge battery。Fig. 5 is the logical flow chart that controller 14 controls set of cells。Accumulator so can be protected to be unlikely to overcharge and normal supplying power for outside。
The invention has the beneficial effects as follows: achieve long-distance iron ore concentrate slurry pipeline and accelerate stream energy dissipating and energy feedback, improve the stability accelerating the stream on-line monitoring ability of energy dissipating, control ability and energy feedback, and good economic benefit can be obtained。
Accompanying drawing explanation
Fig. 1 is assembly of the invention structural representation；
Fig. 2 is the system construction drawing of the present invention；
Fig. 3 is energy dissipating schematic flow sheet of the present invention；
Fig. 4 is energy feedback structure chart of the present invention；
Fig. 5 is that accumulator battery of the present invention controls process schematic；
Each label in figure: 1-main pipeline, 2-secondary duct, 3-electric knives pull valve I, 4-electric knives pulls valve II, 5-centrifugal pump, 6.1-pressure transmitter I, 6.2-pressure transmitter II, 7.1-shaft coupling I, 7.2-shaft coupling II, 8-gearbox, 9-synchronous generator, 10-commutator group, 11-accumulator battery, 12-battery detecting module, 13-energy dissipating baffle plate, 14-controller, 15-inverter, 16-enterprises electrical network。
Detailed description of the invention
Embodiment 1: as Figure 1-5, a kind of iron ore concentrate slurry pipeline accelerates stream energy dissipating and energy back feed device, and including main pipeline 1, secondary duct 2, electric knives pulls valve I 3, electric knives pulls valve II 4, centrifugal pump 5, pressure transmitter I 6.1, pressure transmitter II 6.2, shaft coupling I 7.1, shaft coupling II 7.2, gearbox 8, synchronous generator 9, commutator group 10, accumulator battery 11, battery detecting module 12, energy dissipating baffle plate 13, controller 14, inverter 15, enterprises electrical network 16；
It is other that described secondary duct 2 is arranged on main pipeline 1, energy dissipating baffle plate 13 is arranged in secondary duct 2, the control input line of energy dissipating baffle plate 13 receives controller 14, electric knives pulls valve I 3, electric knives pulls the keying control line access controller 14 of valve II 4, pressure transmitter I 6.1, the pressure signal of pressure transmitter II 6.2 is input to controller 14, the gearshift adjustment input of gearbox 8 is connected with controller 14, centrifugal pump 5 is arranged on main pipeline 1, the rotating shaft of centrifugal pump 5 is connected by shaft coupling I 7.1 with the driving shaft of gearbox 8, the driven shaft of gearbox 8 is connected by shaft coupling II 7.2 with the rotor shaft of synchronous generator 9, the electric energy output end of synchronous generator 9 connects commutator group 10 rectification input, the output of commutator group 10 connects the charging terminal of accumulator battery 11, the outfan of battery detecting module 12 input and accumulator battery 11 connects, battery detecting module 12 outfan access controller 14, commutator group 10 connects inverter 15 and grid-connected to enterprises electrical network 16 by 15 unnecessary electric energy outputs of inverter。
Described accumulator battery 11 adopts the cell parallel after organizing the series connection of multiple accumulator to form more。
A kind of iron ore concentrate slurry pipeline accelerates the control method of stream energy dissipating and energy back feed device, the charge power P of the accumulator battery 11 that described controller 14 is detected by battery detecting module 12cAccording to efficiency factor η=η1η2Calculate actual energy dissipating power in pulp conveying Calculate energy dissipation ratio again
IfThen main pipeline 1 is under normal energy dissipating operating mode；IfThen main pipeline 1 is under energy dissipating abnormality:
If main pipeline 1 is under energy dissipating abnormality, the head pressure that pressure transmitter II 6.2 records is within positive and negative the 10 of M value, then controller 14 thinks that the devices for dissipation of energy of main pipeline 1 breaks down, controller 14 controls to open the electric knives of secondary duct 2 and pulls valve II 4, starting energy dissipating baffle plate 13 device, the electric knives closing main pipeline 1 pulls valve I 3；
If main pipeline 1 is under energy dissipating abnormality, the head pressure that pressure transmitter II 6.2 records is within positive and negative the 10 of N value, then controller 14 thinks that main pipeline 1 blocks, controller 14 controls to open the electric knives of secondary duct 2 and pulls valve II 4, the electric knives closing main pipeline 1 pulls valve I 3, pulls out all energy dissipating baffle plates 13 of secondary duct 2 simultaneously；
In formula, η1It is the efficiency factor of centrifugal pump 5, η2It is the efficiency factor of synchronous generator 9, PzBeing normally give energy dissipating power, M is feature head pressure during devices for dissipation of energy fault, and N is the main pipeline 1 feature head pressure when blocking。
Embodiment 2: as Figure 1-5, a kind of iron ore concentrate slurry pipeline accelerates stream energy dissipating and energy back feed device, and including main pipeline 1, secondary duct 2, electric knives pulls valve I 3, electric knives pulls valve II 4, centrifugal pump 5, pressure transmitter I 6.1, pressure transmitter II 6.2, shaft coupling I 7.1, shaft coupling II 7.2, gearbox 8, synchronous generator 9, commutator group 10, accumulator battery 11, battery detecting module 12, energy dissipating baffle plate 13, controller 14, inverter 15, enterprises electrical network 16；
It is other that described secondary duct 2 is arranged on main pipeline 1, energy dissipating baffle plate 13 is arranged in secondary duct 2, the control input line of energy dissipating baffle plate 13 receives controller 14, electric knives pulls valve I 3, electric knives pulls the keying control line access controller 14 of valve II 4, pressure transmitter I 6.1, the pressure signal of pressure transmitter II 6.2 is input to controller 14, the gearshift adjustment input of gearbox 8 is connected with controller 14, centrifugal pump 5 is arranged on main pipeline 1, the rotating shaft of centrifugal pump 5 is connected by shaft coupling I 7.1 with the driving shaft of gearbox 8, the driven shaft of gearbox 8 is connected by shaft coupling II 7.2 with the rotor shaft of synchronous generator 9, the electric energy output end of synchronous generator 9 connects commutator group 10 rectification input, the output of commutator group 10 connects the charging terminal of accumulator battery 11, the outfan of battery detecting module 12 input and accumulator battery 11 connects, battery detecting module 12 outfan access controller 14, commutator group 10 connects inverter 15 and grid-connected to enterprises electrical network 16 by 15 unnecessary electric energy outputs of inverter。
A kind of iron ore concentrate slurry pipeline accelerates the control method of stream energy dissipating and energy back feed device, the charge power P of the accumulator battery 11 that described controller 14 is detected by battery detecting module 12cAccording to efficiency factor η=η1η2Calculate actual energy dissipating power in pulp conveying Calculate energy dissipation ratio again
IfThen main pipeline 1 is under normal energy dissipating operating mode；IfThen main pipeline 1 is under energy dissipating abnormality:
If main pipeline 1 is under energy dissipating abnormality, the head pressure that pressure transmitter II 6.2 records is within positive and negative the 10 of M value, then controller 14 thinks that the devices for dissipation of energy of main pipeline 1 breaks down, controller 14 controls to open the electric knives of secondary duct 2 and pulls valve II 4, starting energy dissipating baffle plate 13 device, the electric knives closing main pipeline 1 pulls valve I 3；
If main pipeline 1 is under energy dissipating abnormality, the head pressure that pressure transmitter II 6.2 records is within positive and negative the 10 of N value, then controller 14 thinks that main pipeline 1 blocks, controller 14 controls to open the electric knives of secondary duct 2 and pulls valve II 4, the electric knives closing main pipeline 1 pulls valve I 3, pulls out all energy dissipating baffle plates 13 of secondary duct 2 simultaneously；
In formula, η1It is the efficiency factor of centrifugal pump 5, η2It is the efficiency factor of synchronous generator 9, PzBeing normally give energy dissipating power, M is feature head pressure during devices for dissipation of energy fault, and N is the main pipeline 1 feature head pressure when blocking。
Embodiment 3: as Figure 1-5, estimates according to iron ore concentrate slurry pipeline (diameter 100mm) the actual shipment situation of certain company operation, and every 100m pressure head can produce 23KW energy, reclaims electric energy 23 η KW (efficiency factor η)。This system has the unnecessary slurry pressure head of 500m, can produce the energy of 115KW, generated output 115 η KW。The Pulp pump (efficiency 70%) of the 80DFZ-520A type produced by Dongfanghong industrial pump factory, Shijiazhuang selected by centrifugal pump 5。Controller 14 adopts Micrologic1400PLC and the 1762-IQ16 of Rockwell company of the U.S., 1762-IF2OF2 expansion I/O module。Electric knives pulls valve I 3, electric knives is pulled valve II 4 and be can be selected for being pulled valve by the DZW10 series cutter of Yangzhou Xin Neng power equipment company limited system production。Gearbox (8) can be selected for the planet gear speeder that Shanghai Science and Technology Ltd. of Ji You automatization produces, continuous duty, ratio coverage 5-5000rpm, power bracket 0.1KW-200KW。The motor that synchronous generator 9 selects generated output to be 150KW。Commutator group 10 adopts the commutator of IGBT control mode, inputs as three-phase alternating current, maximum voltage 450V, frequency 30 50HZ, output 12V, electric current 0 13000A。
Main pipeline 1 energy dissipating:
The value recorded at normal pressure transmitter II 6.2 is 100m ore pulp pressure head, so C takes 100。In the actually detected process of controller 14, the detected value of pressure transmitter II 6.2 is 100 ± 10, then differentiate main pipeline 1 normal operation。Controller 14 sends control instruction cut out electric knives and pulls valve II 4, opens electric knives and pulls valve I 3。Given controller 14 energy dissipating power is required according to engineering energy dissipating, the gear ratio of gearbox 8 is controlled so that synchronous generator 9, with output-constant operation, ensures that under steady-state operation the stabilization of speed of synchronous generator 9 is thus ensureing generating voltage by closed loop PI, electric current, frequency stable。Guarantee that the voltage after commutator group 10 reaches the charging requirement of accumulator battery 11。Battery detecting module 12 predominantly detects the charge capacity of accumulator each group independent in accumulator battery 11, the accumulator current capacities that detection is obtained sends controller 14 to, judged which the Battery pack charging being currently up in accumulator battery 11 again by controller 14, which block battery discharges。Simultaneously the unnecessary power of commutator output can also be transported in factory network system by inverter。
Secondary duct 2 energy dissipating:
If the ANOMALOUS VARIATIONS of slurry pressure head being detected in controller 14, detection rule is implemented according to the method in claims。At the ore pulp pressure head that value is 450m that devices for dissipation of energy failure condition downforce transmitter II 6.2 records, so M takes 450, the detected value of pressure transmitter II 6.2 is 450 ± 45, then differentiate main pipeline device fails: when controller 14 detects that main pipeline 1 breaks down, then secondary duct energy dissipating baffle plate 13 proceeds by energy consumption throttling, and now the energy dissipator of main pipeline can carry out maintaining。
Value that stopping state downforce transmitter II 6.2 records occur more than 700m at pipeline, so N goes bail for keeps value 700, the detected value of pressure transmitter II 6.2 is more than 700, then differentiate that main pipeline 14 blocks。Sending instruction according to testing result controller 14, electric knives is pulled valve I 3 and is closed, and electric knives is pulled valve II 4 and opened, and when controller 14 detects line clogging to enterprises electrical network 16, energy dissipating baffle plate 13 baffle plate is all actively pulled out。
Above in conjunction with accompanying drawing, the specific embodiment of the present invention is explained in detail, but the present invention is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, it is also possible to make various change under the premise without departing from present inventive concept。
Claims (3)
1. an iron ore concentrate slurry pipeline accelerates stream energy dissipating and energy back feed device, it is characterized in that: include main pipeline (1), secondary duct (2), electric knives pulls valve I (3), electric knives pulls valve II (4), centrifugal pump (5), pressure transmitter I (6.1), pressure transmitter II (6.2), shaft coupling I (7.1), shaft coupling II (7.2), gearbox (8), synchronous generator (9), commutator group (10), accumulator battery (11), battery detecting module (12), energy dissipating baffle plate (13), controller (14), inverter (15), enterprises electrical network (16)；
It is other that described secondary duct (2) is arranged on main pipeline (1), energy dissipating baffle plate (13) is arranged in secondary duct (2), the control input line of energy dissipating baffle plate (13) receives controller (14), electric knives pulls valve I (3), electric knives pulls keying control line access controller (14) of valve II (4), pressure transmitter I (6.1), the pressure signal of pressure transmitter II (6.2) is input to controller (14), the gearshift adjustment input of gearbox (8) is connected with controller (14), centrifugal pump (5) is arranged on main pipeline (1), the rotating shaft of centrifugal pump (5) is connected by shaft coupling I (7.1) with the driving shaft of gearbox (8), the driven shaft of gearbox (8) is connected by shaft coupling II (7.2) with the rotor shaft of synchronous generator (9), the electric energy output end of synchronous generator (9) connects commutator group (10) rectification input, the output of commutator group (10) connects the charging terminal of accumulator battery (11), the outfan of battery detecting module (12) input and accumulator battery (11) connects, battery detecting module (12) outfan access controller (14), commutator group (10) connects inverter (15) and by inverter (15) grid-connected to enterprises electrical network (16) for unnecessary electric energy output。
2. iron ore concentrate slurry pipeline according to claim 1 accelerates stream energy dissipating and energy back feed device, it is characterised in that: described accumulator battery (11) adopts the cell parallel after organizing the series connection of multiple accumulator to form more。
3. an iron ore concentrate slurry pipeline according to claim 1 and 2 accelerates to flow the control method of energy dissipating and energy back feed device, it is characterised in that:
Described controller (14) is the charge power P of the accumulator battery (11) detected by battery detecting module (12)cAccording to efficiency factor η=η1η2Calculate actual energy dissipating power in pulp conveyingCalculate energy dissipation ratio again
IfThen main pipeline (1) is under normal energy dissipating operating mode；IfThen main pipeline (1) is under energy dissipating abnormality:
If main pipeline (1) is under energy dissipating abnormality, the head pressure that pressure transmitter II (6.2) records is within positive and negative the 10 of M value, then controller (14) thinks that the devices for dissipation of energy of main pipeline (1) breaks down, controller (14) controls to open the electric knives of secondary duct (2) and pulls valve II (4), starting energy dissipating baffle plate (13) device, the electric knives closing main pipeline (1) pulls valve I (3)；
If main pipeline (1) is under energy dissipating abnormality, the head pressure that pressure transmitter II (6.2) records is within positive and negative the 10 of N value, then controller (14) thinks that main pipeline (1) blocks, controller (14) controls to open the electric knives of secondary duct (2) and pulls valve II (4), the electric knives closing main pipeline (1) pulls valve I (3), pulls out all energy dissipating baffle plates (13) of secondary duct (2) simultaneously；
In formula, η1It is the efficiency factor of centrifugal pump (5), η2It is the efficiency factor of synchronous generator (9), PzBeing normally give energy dissipating power, M is feature head pressure during devices for dissipation of energy fault, and N is feature head pressure during main pipeline (1) blocking。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610101474.4A CN105698008B (en) | 2016-02-24 | 2016-02-24 | A kind of iron ore concentrate slurry pipeline accelerates stream energy dissipating and energy back feed device and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610101474.4A CN105698008B (en) | 2016-02-24 | 2016-02-24 | A kind of iron ore concentrate slurry pipeline accelerates stream energy dissipating and energy back feed device and its control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105698008A true CN105698008A (en) | 2016-06-22 |
| CN105698008B CN105698008B (en) | 2018-05-11 |
Family
ID=56222458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610101474.4A Active CN105698008B (en) | 2016-02-24 | 2016-02-24 | A kind of iron ore concentrate slurry pipeline accelerates stream energy dissipating and energy back feed device and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105698008B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757280A (en) * | 2018-05-18 | 2018-11-06 | 辽宁工程技术大学 | Slurry accelerates stream power generator |
| CN109812707A (en) * | 2019-03-27 | 2019-05-28 | 西安长庆科技工程有限责任公司 | Enter the station decompression method, apparatus and system for a kind of oil field gathering and transportation station |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005090636A (en) * | 2003-09-17 | 2005-04-07 | Ebara Corp | Transportation system for liquefied hydrogen |
| CN201269407Y (en) * | 2008-10-06 | 2009-07-08 | 洛阳栾川钼业集团股份有限公司 | Pressure regulation apparatus for ore slurry delivery high-pressure pipe |
| CN101691906A (en) * | 2009-03-26 | 2010-04-07 | 云南大红山管道有限公司 | Method and system for eliminating accelerated flow in transportation process of long-distance slurry pipeline |
| CN104989958A (en) * | 2015-07-30 | 2015-10-21 | 云南大红山管道有限公司 | Positioning method for blocking position of ore slurry conveying pipeline |
| CN205579158U (en) * | 2016-02-24 | 2016-09-14 | 昆明理工大学 | Thick liquid pipeline accelerating flow energy dissipation of iron concentrate and energy feedback device |
-
2016
- 2016-02-24 CN CN201610101474.4A patent/CN105698008B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005090636A (en) * | 2003-09-17 | 2005-04-07 | Ebara Corp | Transportation system for liquefied hydrogen |
| CN201269407Y (en) * | 2008-10-06 | 2009-07-08 | 洛阳栾川钼业集团股份有限公司 | Pressure regulation apparatus for ore slurry delivery high-pressure pipe |
| CN101691906A (en) * | 2009-03-26 | 2010-04-07 | 云南大红山管道有限公司 | Method and system for eliminating accelerated flow in transportation process of long-distance slurry pipeline |
| CN104989958A (en) * | 2015-07-30 | 2015-10-21 | 云南大红山管道有限公司 | Positioning method for blocking position of ore slurry conveying pipeline |
| CN205579158U (en) * | 2016-02-24 | 2016-09-14 | 昆明理工大学 | Thick liquid pipeline accelerating flow energy dissipation of iron concentrate and energy feedback device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757280A (en) * | 2018-05-18 | 2018-11-06 | 辽宁工程技术大学 | Slurry accelerates stream power generator |
| CN109812707A (en) * | 2019-03-27 | 2019-05-28 | 西安长庆科技工程有限责任公司 | Enter the station decompression method, apparatus and system for a kind of oil field gathering and transportation station |
| CN109812707B (en) * | 2019-03-27 | 2024-03-01 | 西安长庆科技工程有限责任公司 | Method, device and system for reducing pressure of entering station of oilfield gathering and transportation station |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105698008B (en) | 2018-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103470434B (en) | A kind of power generation device from sea current with self-regulating function | |
| CN104018987A (en) | Method for controlling yaw system of wind turbine | |
| CN205579158U (en) | Thick liquid pipeline accelerating flow energy dissipation of iron concentrate and energy feedback device | |
| CN103343725A (en) | Composite rainwater power generation device based on mini water bucket and PVDF film piezoelectric technology | |
| CN105356505A (en) | Multi-source distributed power generation system suitable for micro electrical network and control method | |
| CN201443471U (en) | Circular horizontal axis wind generating set | |
| CN111237129A (en) | Wind-solar hybrid off-line power generation driving block oil production system | |
| CN105698008A (en) | Accelerated flow energy dissipation and energy feedback device of iron concentrate slurry pipeline and control method of device | |
| CN112636321A (en) | Direct-current transmission power system of petroleum drilling machine | |
| CN102373973A (en) | Low-medium temperature heat energy recovery power generation device | |
| CN101586530A (en) | A kind of hydraulic transduction device that is used for wind-power electricity generation | |
| CN104734165B (en) | Reactive power control method for low voltage ride-through of full-power converter of wind generation set | |
| CN103248082A (en) | Fuel cell standby power supply system provided with hydrogen circulation device | |
| CN101994652B (en) | Universal horizontal-shaft wind generating unit | |
| CN111441895A (en) | Miniature hydraulic residual pressure generating device | |
| CN104092246B (en) | A kind of electric energy distribution method of the compound network system utilizing marine tidal-current energy to generate electricity | |
| CN114678897B (en) | Coordination control method for hybrid hydropower and photovoltaic | |
| CN101962959B (en) | Grabbing device for movable grating trash cleaning machine | |
| CN203091280U (en) | Wear-resistant anti-blocking chute device for powder concentrator | |
| CN201809797U (en) | Grab bucket of movable grid trash cleaning machine | |
| CN202885588U (en) | Coal power plant circulating water system energy conservation device | |
| CN204497753U (en) | A kind of electricity generation system of comprehensive energy | |
| CN210974885U (en) | Power generation and hydrogen production device utilizing surplus pressure of cooling water supply system of hydropower station | |
| CN204205618U (en) | Overbottom pressure utilizes retracting device | |
| Ji et al. | Collaborative Control of Integrated Generation and Storage for Offshore Wind Turbines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |