CN1215452A - Turbomachinery driving apparatus and method of controlling the same - Google Patents
Turbomachinery driving apparatus and method of controlling the same Download PDFInfo
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- CN1215452A CN1215452A CN96180230A CN96180230A CN1215452A CN 1215452 A CN1215452 A CN 1215452A CN 96180230 A CN96180230 A CN 96180230A CN 96180230 A CN96180230 A CN 96180230A CN 1215452 A CN1215452 A CN 1215452A
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- transducer
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
- F04D15/029—Stopping of pumps, or operating valves, on occurrence of unwanted conditions for pumps operating in parallel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/84—Redundancy
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The aim of the invention is to simplify exchanging of mutual signals as a dual inverter, logic simplify for complex exchanging and omit an external communication control device. First and second leakage breakers (ELB1, ELB2), inverters (INV1, INV2), pumps (4-1, 4-2) and motors (5-1, 5-2) constitute a full duplex feed water system. The inverters INV1, INV2 are mutually connected by a signal line to correlate signals for transmission failure and operation conditions. Signals among a group of sensors for detecting a load condition is directly connected with the inverters. Accordingly, complex communication circuit part outside is made unnecessary. Thereby, the size, weight, manufacturing cost and the number of parts of the apparatus are reduced, the system is simplified, and reliability is increased.
Description
Technical field
The present invention relates to drive a plurality of transducers and the application apparatus thereof of a plurality of turbo machines.
Background technique
In the turbo machine of turbine pump, turbo type gas fan etc., confluent, air quantity and motion speed are proportional, give the square proportional of hydraulic pressure, blast and motion speed, and the cube of their output and motion speed are proportional.This expression is along with the decline of carrying capacity, and its motion speed also can descend, and therefore has the advantage that can realize saving energy etc.
Used a plurality of transducers in the past, carried out speed controlling,, carried out the operation order and the platform numerical control system of these a plurality of transducers, turbo machine simultaneously so that the outlet side pressure of above-mentioned a plurality of turbo machines keeps certain stable relations.
Therefore,, carry out speed controlling and operation platform numerical control system, can control its confluent, air quantity expeditiously, give hydraulic pressure, blast according to load change with comparalive ease so if drive above-mentioned a plurality of turbo machine with a plurality of transducers.Therefore, can think, utilize transducer to carry out speed controlling from now on and still can popularize.
Wherein, in water supply device, use the example of transducer with Fig. 1～Fig. 3 explanation.Fig. 1 is the structural drawing of water supply device, the 1st, the tap water distribution pipe, 2-1,2-2 are the distribution pipe arms, and 3-1,3-2,3-3,3-4 are gate valves, and 4-1,4-2 are pumps, 5-1,5-2 are motor, 6-1,6-2 are safety check, the 7th, and supply pipe, the 8th, the pressurized tank of airtrapping is arranged in inside, 9,10 is respectively the pressure transducer that testing pump suction side and pump are discharged side, according to the pressure generation electrical signal of test section.FS1, FS2 are flow switches, make flow switch open (ON) when Fig. 2 described later, very few water yield QS shown in Figure 3 are following.CNU is a control gear, is made of power current circuit part and the R of relay circuit portion and controller CU, and power current circuit partly comprises transducer INV1, the INV2 of variable speed drive motor 5-1,5-2 and carries out earth leakage protective RCCB ELB1, ELB2.Relay circuit R is furnished with the interface I/O of transistor T R, stabilized power supply Z, relay 52X1,52X2 and they and controller CU.
Controller CU be furnished with arithmetic processing apparatus CPU (being designated hereinafter simply as CPU), the A/D converter that converts digital signal from the signal (analog amount) of pressure transducer 9,10 to, to transducer INV1, INV2 send make water supply system meet the requirements of speed command signal N1, N2 instruction D/A converter, the power supply terminal E of power supply is provided and sends the delivery outlet PIO-1 of signal S4 to the interface I/O that drives above-mentioned relay 52X1,52X2 to controller CU.In addition, also be furnished with: be used to read in the setting value set by setting device C so that similarly according to the inlet opening PIO-2 of Fig. 2, pump operation characteristic operation shown in Figure 3, RCCB ELB1, ELB2 be at contact ELBAL1, the ELBAL2 of the time action of opening circuit that causes because of electric leakage etc. separately, and contact INVAL1, the inlet opening PIO-3 of INVAL2 state of the action when being used to read in transducer INV1, INV2 and opening circuit because of excess load etc. produces.That is to say that CPU stops this pump according to these fault states, sends the instruction of replacing operation to other pump that is in time-out, and it is controlled.
Fig. 2 is the water supply installation that expression utilizes above explanation, the roadability figure when pump of isolated operation or alternate run two pumps, and the longitudinal axis is represented pressure H, transverse axis is represented water withdrawal Q.Curve A is the motion speed N3 that is produced by transducer, promptly uses the Q-H performance curve under the situation of 100% motion speed driven pump.Q-H performance curve when similarly, curve B, C, D are respectively motion speed driven pumps with N2, N1, N0.Have, curve F is the pipe impedance curve again, for example, makes water consumption when water yield Q1 changes to water yield Q0, if in the pressure feedwater by this curve F of the discharge side 2 of pump, be illustrated in the available desired pressure of water supply system on the terminal water bolt so.Also have, which type of condition above-mentioned transducer INV1, INV2 are in, for example the acceleration and deceleration time, whether rotate with V/F (output voltage and output frequency characteristic etc.), carry out external setting-up by operating console CONS1, CONS2.That is to say that water supply installation is along 03 → 02 → 01 → 00 process pump on the curve F.
And, in Fig. 1, if drop into RCCB ELB1, ELB2, drop into the circuit breaker CB of control power supply, establish the power supply of control gear CU so, CPU is according to program stored in advance in storage M, carry out initial setting, C reads in set information from setting device, reads in the state (fault-free) of transducer and RCCB by inlet opening PIO-3, and reads in the signal of pressure transducer 9,10 by A/D converter.In addition, storing predetermined pipe impedance curve F under the situation that load condition changes, corresponding to the variation of motion speed, changes feed pressure, so that change by this impedance curve F.Like this, finishing operation prepares.Under this state, if water, feed pressure descends so, if drop to below the breakout pressure HON shown in Figure 2, CPU is by delivery outlet PIO-1 so, export the signal that is applied on the relay 52 to interface I/O, simultaneously by D/A converter, to the signal of transducer INV1 output motion speed N1.Thus, start transducer INV1, drive motor 5-1.After the operation, control, make feed pressure get back to curve F according to the signal of pressure transducer 10.If water consumption reduces, the pump stop condition is established, so CPU remove current output relay 52X1 apply signal and to the speed command signal N1 of transducer INV1.Stop pump 4-1 thus.If reuse water, establish the starting conditions that becomes below the feed pressure HON, send the signal of relay 52X, motion speed N2 so, drive other transducer INV2, motor 5-2 specifically, make pump 4-2 operation.Subsequently, similarly, replace the alternate run of control.
Performance plot when Fig. 3 is the parallel running two pumps, the part of using the label identical with Fig. 2 to represent has identical meaning.That is to say, alternately move two pumps shown in Figure 2, and under the situation that water consumption is increased, pump 4-1,4-2 are moved simultaneously.If water consumption is changed to more than the Q3, because motion speed N3 reaches maximum speed, so capacity of water supply deficiency, feed pressure descends to HL so.Therefore, CPU sends the signal of relay 52X1,52X2, speed N1, N2 simultaneously.Like this, transducer INV1, INV2, motor 5-1,5-2 just become operation simultaneously, make pump 4-1,4-2 become parallel running.After the operation, control, make feed pressure get back to curve F according to the signal of pressure transducer 10.
If water consumption is reduced, motion speed becomes N4+N3, and feed pressure becomes HH, so just makes one in two to stop, and becomes isolated operation.
As these known examples, can open flat 5-231332 communique with reference to the spy.
Like this, in order to drive two transducers, the master control set of control change device must be arranged on its high position in the past.
In above-mentioned prior art, the problem points below existing.That is to say that (1) is in existing systems, even two transducers are all normal, if but master control set become under unusual and be failure to actuate, so just have the problem of the defective of cutting off the water supply that the system failure causes.
(2) under the situation with the reversible transducer construction system, owing to have the control function separately, even under a situation about breaking down, another still can carry out the reinforcement operation.But, owing to have the control function separately, thereby be difficult to transmit mutual state of a control, want to make transducer alternate run and parallel running, at the outside necessary mutual interlocking that obtains of transducer, detect these states, send operating instruction.In addition, the signal of reciprocal interlocking is many, becomes the system of control logic complexity.
Disclosure of an invention
In view of the above problems, the object of the present invention is to provide not additional peripheral device, just can carry out handshaking simply, realize small-sized light weight, reversible transducer and its application apparatus cheaply.
To achieve these goals, turbomachinery driving apparatus of the present invention carries out described turbine speed control, be furnished with two turbines, drive two transducers of described turbo machine and a plurality of sensors of the load condition that detects described turbo machine are housed respectively, it is characterized in that, described transducer is connected by four kinds of exchange signals of the mutual running state of expression, described two transducers are taken into the signal of described a plurality of sensors jointly, and described two transducers utilize described exchange signal to obtain interlocking on one side mutually, Yi Bian carry out the speed controlling of described turbo machine; In addition, controlling method as turbomachinery driving apparatus, it is characterized in that, is being furnished with two turbines, each drives two transducers of a described turbo machine, with the load condition that the described turbo machine of detection is housed, export a plurality of sensors of its testing signal simultaneously to described transducer, carry out in the device of described turbo machine control, when described sensor goes out predetermined starting state, transducer starting as preferential machine setting in advance, if the parallel running starting conditions is measured in described preferential machine examination, transducer by this preferential machine of driving proposes start request to the transducer in suspending so, make the transducer starting in the time-out and carry out the described preferential machine of variable-speed operation with transducer, so that the discharge side highest goal pressure when becoming by an operation is discharged the constant control of side pressure, till second starter motor that the transducer by parallel starting drives reaches parallel constant speed state; If described second starter motor of parallel starting becomes parallel constant speed state operation, so described preferential machine variable-speed operation, so that the mark of the discharge sidelong glance in the time of can be by two parallel runnings pressure, reach and infer the constant control of terminal pressure, if described sensor goes out predetermined too small load condition, described preferential machine is stopped.
The simple declaration of accompanying drawing
Fig. 1 is the structural drawing of existing turbomachinery driving apparatus.
Roadability figure when Fig. 2 is independent or alternate run pump.
Roadability figure when Fig. 3 is the two pumps parallel running.
Fig. 4 is the entire system structural drawing of illustration as the water supply installation of turbo machine of the present invention.
Fig. 5 represents the explanation of reversible transducer terminal details of the present invention and exchange signal.
Fig. 6 is the sequential chart of expression according to the power supply rising treatment step of the present invention's device shown in Figure 4.
Fig. 7 is the sequential chart of expression according to the parallel running controlling method of the present invention's device shown in Figure 4.
Fig. 8 realizes the flow chart that Fig. 6, Fig. 7 handle according to the present invention.
The preferred embodiment that carries out an invention
Below, the summary description embodiments of the invention.
Make the required signal content of handshaking of special-purpose transducer reach inferior limit as possible, ground that can dual-purpose makes things convenient for dual-purpose.The I/O mouth that certain general transducer had in the past continues to utilize.Only cross make pump operation in advance, stop, the transducer of the detection of the detection of parallel running starting, releasing detects, can simplify exchange signal complicated between the mutual transducer, make mutual interlocking signal minimum signal, preferably two outputs are connected with two input signals, carry out giving and accepting of signal mutually.And, utilize and preestablish portion, make these transducers set how to move transducer, or the operating mode of assumed load, set the preferential machine of operation earlier of selecting.Like this, can replace and parallel running, reruning with reinforcement when unusual are moved.RCCB carries out the short-circuit protection of main circuit and the earth leakage protective of primary side, and main circuit opens circuit.Transducer drives turbo machine, is made of doublet system, and each signal of the pressure transducer of detection load state, too small load condition detection device, suction side pressure sensor is taken into by the same level of direct parallel connection.In transducer, be equipped with and write down the software program of the microcomputer work of predetermined control method, program separately, according to the input signal operation of sensor etc.At the use initial stage, if drop into RCCB, the power supply of two transducers is established so, carries out standby operation as the side by external setting-up who is scheduled to preferential machine.If the pressure transducer of detection load state is preestablished, detect certain starting pressure, a so standby side's transducer is starting just.Go out this state if detect the sensor of too small load condition, predefined certain stop condition Cheng Ding, this transducer stops so, and the stop signal of machine becomes running state but the transducer utilization in the time-out is gone ahead of the rest, and starts, stops according to above-mentioned spare part.And, the pressure transducer of detection load state, if detect predefined parallel running pressure state, so operating transducer requires signal for the transducer output parallel running in suspending, but the transducer in the time-out begins parallel running from running state.Have again,, utilize the signaling line that connects between two transducers connecting opening circuit of the opening circuit of RCCB, transducer when taking place, transmit this state mutually, from stopping to the operation of normal side conversion of unusual generation side, anomalous lateral is carried out the generation of internal signal, reruns.And the card display unit at transducer shows this state with error code, sends signal to the outside.In addition, utilize this display unit, show the value of pressure, electric current, voltage, frequency.
Below, utilize accompanying drawing to illustrate in greater detail one embodiment of the invention.
Fig. 4 is that expression is applied in the overall structure figure of the embodiment in the water supply installation to the present invention, owing to use the label identical to represent identical part with Fig. 1 of being quoted in the DESCRIPTION OF THE PRIOR ART, so omit its explanation.
In the figure, control gear CNU is furnished with RCCB ELB1, ELB2, transducer INV1, INV2 and noise filter ZCL0, ZCL1, ZCL2.This is because R of relay circuit portion shown in Figure 1 and control gear (hardware and software) CU are assembled among above-mentioned transducer INV1, the INV2.
That is to say that this transducer INV1, INV2 by signaling line S1, S2, export to the control panel outside terminal to the break signal AL of RCCB ELB1, ELB2 as the ELB break signal.
By signaling line S4 or S5, the signal FS1b of flow switch FS1 or FS2 or FS2b are input on the terminal DI4-COM, by signaling line S6, S7, the signal of pressure transducer 9,10 is input on terminal AN0, AN1, the L respectively.And, because this pressure transducer 9,10 common use transducer INV1, INV2, so connect with signaling line S8 between the two.
Connect with signaling line S3 between terminal DI1, the DI2 of transducer INV1, INV2, D01, the D02, carry out the exchange of signals such as running state, fault state, service condition.The DI3 terminal is as the selection signal of preferential machine, transducer INV1 and COM short circuit.
And signaling line S9, S10 are used for the signal to the fault of output translator INV1, INV2 such as central monitoring dish.
The details of the exchange signal S3 of Fig. 5 and table 1 expression transducer INV1, INV2.Have, table 1 is that expression is according to the output state of the exchange signal of reversible transducer of the present invention and the label table of state of a control again.
The interlocking signal of transducer 1, transducer 2 has two outputs, two inputs respectively, by making this signal of two open (ON) and closing (OFF), can know four kinds of states by the other side.
In Fig. 5, if hypothesis represents to export the state of D01, D02 with the A shown in the table 1 ~ D state, D01, D02 open (ON) both sides if the pump of operation in advance oneself is arranged under the state so, just expression of state A " parallel start request " signal.
(table 1)
| State signal | Terminal | Content | |
| ????D01 | ????D02 | ||
| ????A | Open (ON) | Open (ON) | The parallel fast state (during second starter motor) of parallel start request when machine (in advance) |
| ????B | Open (ON) | Close (OFF) | Automatically alternately (walking abreast) is in service |
| ????C | Close (OFF) | Open (ON) | During automatic alternately (walking abreast) is standby |
| ????D | Close (OFF) | Close (OFF) | Electric power disconnection, during automatically independent failure stops, manually |
If oneself has back priming pump, be illustrated in so and represent output " parallel constant speed state " signal when reaching predefined the most at a high speed certain state.Be in automatic mode both sides, produce sort signal when setting parallel running.State B represents that D01 is in out (ON), the state of " alternately (walking abreast) is in service automatically " when D02 is in pass (OFF) state.State C represents that D01 is in pass (OFF), the state of " alternately (walking abreast) is standby automatically " when D02 is in out (ON) state.The state of " isolated operation pattern ", " manual mode " when state D represents that D01, D02 both sides are in pass (OFF) state, " fault stop in " or " in the electric power disconnection ", the state of representing own isolated operation, or expression can not be by alternately and the state of parallel running.Utilize above signal, can realize alternately, the exchange of the reinforcement operation during parallel, fault etc.
Below, the exchange details of this signal is described with the sequential chart of Fig. 6, Fig. 7.At first use the sequential chart of Fig. 6, alternate run action after power supply raises and the action when unusual are described.In the drawings the moment 1, the power supply of transducer 1 raises, and state changes to C from D.At this moment, because the also rising of the power supply of the other side's transducer 2, so still be the D state.Because but the transducer of process pump has only transducer 1, so transducer 1 automatically moves work individually.In the moment 2, transducer 1 testing pump starting conditions makes transducer 1 operation.At this moment, transducer 1 is by C state output B state, and expression is in service.In the moment 3, the testing pump stop condition, transducer 1 stops, by B state output C state.Subsequently, in the moment 4, because the rising of the power supply of transducer 2, so transducer 2 is by D state output C state.Because transducer 2 becomes the C state, make alternately or parallel running becomes possibility, so transducer 1 convert to from isolated operation replace, the parallel running state.At the moment 5, testing pump starting conditions.At this moment, because transducer 1 and transducer 2 all are taken into the signal of same sensor, so starting conditions is set up simultaneously, but because transducer 1 is set at preferential machine, so transducer 1 starting earlier, by state C output B.Because transducer 1 is in the C state, so transducer 2 becomes alternate mode in the power supply rising, even but utilize is not that the side detection starting conditions of preferential machine also has the delay in the operation, even thereby starting conditions is set up simultaneously, but owing at first move as the transducer 1 of preferential machine, output B state is so transducer 2 is out of service.Like this, by the sequential that staggers, prevent to start simultaneously.After the moment 5, because machine, second starter motor become clear in advance, thus stop in the moment 6, in 7 starting conditions establishment constantly, transducer 2 operations.After, carry out same alternate run.In the moment 10, under situation about breaking down on the transducer 1, the state of transducer 1 becomes D by B.At this moment, the transducer 2 in stopping to be changed to D because of the state of transducer 1 by B, thereby makes fault judgement, in addition, owing to detect starting conditions, so bring into operation, state is exported to B by C.Under the situation of the fault recovery of the moment 11 o'clock transducers 1 that transducer 2 is in operation,, become normal alternate run pattern, so transducer 1 becomes stand-by state because state is exported to C by D.At 12 o'clock constantly, transducer 2 stopped, and carried out normal alternate run after the moment 13.
Below, the sequential chart of use Fig. 7 illustrates the parallel running action.The moment 1 in the figure is the state identical with moment 4 of Fig. 6, and in the moment 2 in the figure, if detected starting conditions, the same with the moment 5 of Fig. 6 so, the transducer 1 that is set to preferential machine at first brings into operation.At 3 o'clock constantly, if parallel starting conditions is set up, if transducer 2 is in running state C automatically, transducer 1 was just to transducer 2 outputs " parallel start request " A so.Exported state A through affirmation transducer 1, transducer 2 brings into operation.At this moment, transducer 2 is constantly gathered way, up to the speed of setting (preferably MAX speed) by state C output B.From constantly 3 to constantly 4, transducer 1 as desired value, carries out variable-speed operation with 03 (first point of discharging the highest goal pressure of side) of F curve among Fig. 3, so as to make discharge press certain.In the moment 4, if transducer 2 reaches setting speed, output just becomes " the parallel constant speed state " to A by state B so.If confirmed the state A of transducer 2, so transducer 1 just with F curve among Fig. 3 03 ~ 05 on desired value, according to the variation of the water yield, carry out variable-speed operation according to inferring the certain control of terminal pressure.In the moment 5,, export the state that pump 4-1 is stopped to C by A so if transducer 1 detects parallel condition subsequent.Through confirming that transducer 1 becomes the C state, transducer 2 just with F curve among Fig. 3 00 ~ 03 on desired value, according to the variation of the water yield, carry out variable-speed operation according to inferring the certain control of terminal pressure.Like this, by above handshaking, can detect and have only starting, parallel import, walk abreast releasing, the stop condition of machine in advance, that can control is unified.In addition, according to this mode, the variation in pressure that can start walking abreast be suppressed to very little, can the switchover operation machine by walking abreast.
Below, use the flowchart text of Fig. 8 to be used to realize the flow process of the sequential chart control of Fig. 6, Fig. 7.The symbol of " zero " expression output oneself state among this figure.The symbol that " " expression is moved to the state that is called the other side's state.In 800, determine preferential machine by the outside terminal of predetermined map device.In 801, if drop into power supply, in 802, forcibly preferential machine is set at machine in advance so, a side of no preferential machine is set at second starter motor.In 803, before starting conditions is set up the state in standby, if starting conditions is set up, move on to processing in 804 so, at this, handle respectively by the setting of the go ahead of the rest machine or second starter motor.
Under the situation of the machine of going ahead of the rest, in 805, whether starting beginning confirms faults itself in 806, if it is normal, so in 807, with the F curve among Fig. 3 00 ~ 03 on desired value, carry out the terminal press fit control that the corresponding water yield changes, betwixt 808 in confirm very few water yield condition, if condition is set up, so in 809, enter and stop to handle.Under situation about stopping, in 822, switch to the setting of second starter motor from machine in advance, prepare alternate run.In 808, do not detect very few water yield condition, in 810, confirm under the situation of parallel condition that in 811, confirm the other side's state, if " in standby automatically ", in 812, to the other side's output " parallel start request ", starting walks abreast so.In 813, confirm the other side's state, in 814 ~ 816, become " parallel constant speed state " up to the other side, in 814, be desired value with 03 (first point of discharging the highest goal pressure of side) of F curve among Fig. 3, necessarily control by discharging pressure.Be " parallel constant speed state " if can confirm the other side's state, so in 818, with the F curve among Fig. 3 03 ~ 05 on desired value, carry out second the terminal that makes that the corresponding water yield changes and press certain control.In 820, confirm parallel condition subsequent, if condition is set up, in 821, making in advance, machine stops so.Betwixt 817 ~ 820 in, if the second starter motor fault stops, returning 807 so, have only one terminal to press certain control.In 819, confirm the fault state of machine (self) in advance.Under the situation that machine stops in advance under fault or parallel the releasing, detect with the very few water yield and to stop equally, in 822, cut for being the setting of second starter motor from machine in advance, prepare the alternate run of back.It more than is the go ahead of the rest processing of machine of the conduct that is used to realize the sequential chart of Fig. 6, Fig. 7.
Subsequently,, in 804, under the situation of setting second starter motor, confirm that in 823 the other side's machine has in advance moved, still move for the processing of second starter motor.Under situation about moving, in 824, confirm to have or not parallel requirement, having under the situation of requirement, in 826, starting walks abreast.If starting in 829, stops up to the machine of going ahead of the rest so, all press the certain speed operation.Quicken if started also, in 828,, then just notify machine in advance " parallel constant speed state " so if reach predefined certain speed.In 829, if machine stops in advance, in 830, second starter motor is cut for being the setting of machine in advance so, later on just as the machine of going ahead of the rest, move on in 806 and handle, carry out the control of terminal press fit.In addition, in 823 ~ 824, in the parallel state that requires (in standby automatically) is arranged, under the situation that machine hinders for some reason or the detection of the very few water yield stops in advance, in 825, cut and replace, second starter motor is set for machine in advance, prepare the starting of back.It more than is the processing of conduct second starter motor that is used to realize the sequential chart of Fig. 6, Fig. 7.
According to above embodiment, two transducers by a two turbines and a turbo machine of each driving constitute, these transducers are furnished with the computer of loading, the configuration part of state display part and control constant, be taken into the sensor group's who detects described turbo machine load condition signal, set predetermined described control constant configuration part according to load condition, move, interconnect with the minimum signaling line of representing running state and fault state, two mutual interlockings of transducer, simultaneously under the situation of inferring the fixing control of terminal pressure, in the control when parallel starting, in the exchange signal, be provided with " parallel start request " signal, if the parallel running starting conditions is measured in machine examination in advance, so just the transducer in suspending is exported parallel start request signal, make the transducer starting in the time-out, if the starting of the transducer in suspending, so just export " in service automatically " signal, if improve speed gradually by predefined acceleration, until reaching predetermined certain speed (preferably maximum speed), so just to machine output in advance " parallel constant speed state " signal, machine carries out variable-speed operation control in advance, so that the transducer of parallel starting is in that change to " parallel constant speed state " from " in service automatically " preceding, first goal pressure of discharging side becomes necessarily; Machine carries out variable-speed operation control in advance, if so that second starter motor of parallel starting becomes " parallel constant speed state " operation, so just can discharge sidelong glance mark pressure by second, becomes and infers the constant control of terminal pressure; In addition, in the control during parallel the releasing, in parallel running, because second starter motor carries out constant-speed operation, so fix the in advance machine of variable-speed operation inferring terminal pressure one, utilize the rotating speed of self and the pressure of load side, can detect predefined parallel condition subsequent; As parallel condition subsequent, if machine reaches minimum speed in advance,, stop pressure if become so with regard to monitor pressures, the machine of going ahead of the rest is stopped, second starter motor is exported; If second starter motor of constant-speed operation has received " in standby automatically " signal, so because variable-speed operation, make it discharge sidelong glance mark pressure by predefined first and infer the constant control of terminal pressure from constant-speed operation, even so reversible transducer only just makes the starting, the stop condition that detect parallel running become possibility with a transducer in advance.
In addition, in the transition state control when parallel starting, if the parallel running starting conditions is measured in machine examination in advance, so start request is proposed the transducer in suspending, make the transducer starting in the time-out, machine carries out variable-speed operation in advance, carry out the constant control of head pressure by first highest goal pressure of discharging side, transducer up to parallel starting reaches parallel constant speed state, if second starter motor of parallel starting becomes parallel constant speed state operation, because discharging sidelong glance mark pressure change by second on one side, the machine of going ahead of the rest discharges goal pressure so, one side variable-speed operation, it can be become infer the constant control of terminal pressure, so, when the transition state when parallel starting is unstable, become steady state up to second starter motor, just upgrade the discharge sidelong glance mark pressure of machine in advance, thereby have and suppress to stablize state of a control and disperse, can carry out pressure controlled effect.
In addition, in connecting the signal of two transducers, can comprise the signal that barrier for some reason stops, by making this signal list the identical state of state that opens circuit and export because of inverter power supply is shown, need not to be taken into separately the break signal of RCCB, carry out the fault jump and become possibility.
In addition, be provided with mode switch, manual-Qie-automatic signal is connected on external input terminals of two transducers; In Fig. 4, by DI5 for opening (ON), DI6 is to be " automatically " when closing (OFF), DI5 is for closing (OFF), DI6 is " manually " when opening (ON), DI5, DI6 both are the meanings of " cutting " when closing (OFF) or being out (ON), make the state of a control of two transducer equally become possibility.
In addition, certain external input terminals by either party in two transducers of short circuit for example is as " preferential machine ", just can prevent when power supply from dropping into or the misoperation of the recovery of power failure time time operation, utilize outside terminal, can easily carry out the setting of preferential machine.
In addition, owing to constitute complete doublet system, obtain the fault reinforcement, so can further improve reliability with first system and second system.
In addition, in predetermined transducer, being mounted with can be by the program of load operation mode operation, according to this program, setting section by described transducer is set operation, when the load condition detection device has detected starting pressure, as the transducer starting that preferential machine is set, very few load detection device detects very few load condition, if stop condition is set up, so owing to can stop, so in the exchange of two transducers, additionally added communications circuit part and complicated exchange logic are owing to can carry out alternate run or alternately and parallel running, institute can implement small-sized light weight and cost degradation so that control gear is simplified.Have, owing to can subdue part number, reliability improves again.In addition, because the short circuit and the electric leakage of main circuit depend on RCCB, the fault state of load side in addition monitors transducer self by in the variation of transducer internal state amount, and institute becomes possibility so that carry out cutting for moving when unusual simple and reliablely.And, but because with the predetermined preferential machine of transducer external setting-up, the starting sequential that staggers, so the operation order can be not chaotic (during service restoration etc.).
Have again, reset action owing to add when fault is arranged, so can the reliable detection fault state.
Also having, is that two transducers are common owing to can make the pressure transducer of detection load state, the pressure transducer of detection suction side pressure, so become simple and cheap.
The industrial possibility of utilizing
According to the present invention, because the signal that enough two converters of energy carry out between converter with the signal exchange of minimum is given and accepted, the operation of interlocking is so can obtain to need not additionally to add turbomachinery driving apparatus and its application apparatus control device, simple, small-size light-weight, cost degradation.
Claims (13)
1. turbomachinery driving apparatus carries out described turbine speed control, and this turbomachinery driving apparatus is furnished with: two turbines at least; Drive at least two transducers of described turbo machine respectively; With a plurality of sensors that the described turbo machine load condition of detection is housed, described transducer connects by at least four kinds of exchange signals of the mutual running state of expression, at least described two transducers are taken into the signal of described a plurality of sensors jointly, and described at least two transducers are mutually by described exchange signal, at least move stop, the judgement of isolated operation, alternate run, parallel running, carry out the speed controlling of described turbo machine.
2. turbomachinery driving apparatus as claimed in claim 1 is characterized in that, described turbo machine is a turbine shape pump.
3. turbomachinery driving apparatus as claimed in claim 1 is characterized in that, described turbo machine is a turbine shape gas fan.
4. turbomachinery driving apparatus as claimed in claim 1 is characterized in that, described four kinds of exchange signals are two output signals and two input signals, are received transmission mutually between described transducer.
5. turbomachinery driving apparatus as claimed in claim 1, it is characterized in that, described four kinds of exchange signals comprise: an operating transducer proposes start request to another transducer in suspending from described transducer, makes the parallel start request signal of the transducer starting in the described time-out; At the operating described transducer that continues, reach predetermined certain speed after described another transducer starting in the time-out before, from the automatic in service signal of described another transducer to described transducer output; When described another transducer moves with predetermined certain speed, from the parallel constant speed state signal of described another transducer to described transducer output; When being in halted state, from the transducer of this halted state signal to the stopping automatically of another transducer output with a described transducer or another transducer folk prescription or both sides.
6. turbomachinery driving apparatus as claimed in claim 5, it is characterized in that, described stop automatically in signal comprise that the described transducer of expression hinders the signal that is in stopping for some reason and the described inverter power supply of expression opened circuit and be in signal in stopping as the signal of same state.
7. turbomachinery driving apparatus as claimed in claim 5, it is characterized in that, described transducer is furnished with the variable-speed operation device, control continues described another transducer of parallel starting, so that, make the discharge sidelong glance mark pressure of the described turbo machine that drives by a described transducer certain from sending behind the described automatic signal in service to sending described parallel constant speed state signal; Make the device of described turbo machine variable-speed operation, if described another transducer has sent described parallel constant speed state signal, the described turbo machine of variable-speed operation so so that discharge sidelong glance mark pressure can be by two parallel runnings the time, is inferred the constant control of terminal pressure; Detection device, by the turbo machine constant-speed operation that described another transducer drives, in parallel running, at described another transducer, the discharge side pressure is certain, according to the rotating speed of described turbo machine and the pressure of load side, detects predefined parallel condition subsequent; And output unit, when detecting described parallel condition subsequent, stop middle signal automatically to described another transducer output is described; Described another transducer is furnished with the variable-speed operation device, in parallel running, when receive described stop automatically in during signal, carry out variable-speed operation, replace constant-speed operation control, so that the discharge sidelong glance mark pressure can be by a predefined operation time is inferred the constant control of terminal pressure.
8. turbomachinery driving apparatus as claimed in claim 1, it is characterized in that, by manual-Qie-automatic mode switch is being connected on external input terminals of two transducers simultaneously, make its input terminal become pattern and cut, realize making the mode state of two transducers always in same level for dedicated terminals.
9. turbomachinery driving apparatus as claimed in claim 1, it is characterized in that, when described sensor goes out predetermined starting state, on described transducer, be respectively equipped with preferentially external input terminals of operation in advance of which platform of decision in described two transducers, the turbo machine that is driven by the transducer of this terminal of short circuit as preferential machine.
10. turbomachinery driving apparatus as claimed in claim 1 is characterized in that, constitutes doublet system by first system and second system.
11. the controlling method of a turbomachinery driving apparatus is characterized in that, described turbomachinery driving apparatus is furnished with: two turbines at least; Each drives at least two transducers of a described turbo machine; With the load condition that the described turbo machine of detection is housed, export a plurality of sensors of its testing signal simultaneously to described transducer, in the control of carrying out described turbo machine, when described sensor has gone out predetermined starting state, the transducer starting of setting as preferential machine in advance, if the parallel running starting conditions is measured in described preferential machine examination, transducer by this preferential machine of driving proposes start request to the transducer in suspending so, second starter motor starting that transducer in the time-out is driven, described preferential machine utilizes transducer to carry out variable-speed operation, so that the constant control of discharge side pressure of the discharge side highest goal pressure when carrying out by an operation, till reaching parallel constant speed state to second starter motor that utilizes the parallel transducer that starts to drive, if described second starter motor of parallel starting becomes parallel constant speed state operation, so described preferential machine variable-speed operation, so that the mark of the discharge sidelong glance in the time of can be by two parallel runnings pressure, infer the constant control of terminal pressure, the testing signal of described sensor during according to parallel running, if detect parallel condition subsequent, stop the operation of described preferential machine so, and described preferential machine is set at machine in advance as second starter motor and described second starter motor; If described sensor goes out predetermined too small load condition, described machine is in advance stopped, and replace the relation of the described machine in advance and second starter motor.
12. the controlling method of a turbomachinery driving apparatus, it is characterized in that, this turbomachinery driving apparatus is furnished with: two turbines, each drives two transducers of a described turbo machine, with the load condition that the described turbo machine of detection is housed, export a plurality of sensors of its testing signal simultaneously to described transducer, in the control of carrying out described turbo machine, a transducer operation is only arranged in two, when another is in the time-out, operating transducer is set at preferential machine, if the parallel running starting conditions is measured in machine examination in advance, transducer by this machine of going ahead of the rest of driving proposes start request to the transducer in suspending so, second starter motor that is driven by the transducer in suspending starts, described in advance machine carries out variable-speed operation, so that the discharge side highest goal pressure during by an operation is discharged the constant control of side pressure, till parallel second starter motor of walking about reaches parallel constant speed state; If described second starter motor of parallel starting becomes parallel constant speed state operation, so described machine variable-speed operation in advance is so that the discharge sidelong glance mark pressure during by two parallel runnings is inferred the constant control of terminal pressure; The testing signal of described sensor during according to parallel running if detect parallel condition subsequent, just stops the described operation of machine in advance, and replace the relation of the described machine in advance and second starter motor so; If described sensor goes out predetermined too small load condition, the transducer that is set at the machine of going ahead of the rest is stopped, and replace the relation of the described machine in advance and second starter motor.
13. a turbomachinery driving apparatus is furnished with many turbo machines, drives many transducers of described turbo machine respectively and detects a plurality of sensors of described turbo machine load condition, carries out the speed controlling of described turbo machine; Described transducer is connected by the multiple exchange signal of the mutual running state of expression, described many transducers are taken into the signal of described a plurality of sensors simultaneously, and described many transducers are by mutual described exchange signal, at least to operation stop, isolated operation, alternate run, parallel running judge, and carries out the speed controlling of described turbo machine.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15013/1996 | 1996-01-31 | ||
| JP1501396 | 1996-01-31 | ||
| JP15013/96 | 1996-01-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1215452A true CN1215452A (en) | 1999-04-28 |
| CN1168899C CN1168899C (en) | 2004-09-29 |
Family
ID=11877004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB961802308A Expired - Fee Related CN1168899C (en) | 1996-01-31 | 1996-03-22 | Turbomachinery driving apparatus and method of controlling the same |
Country Status (4)
| Country | Link |
|---|---|
| JP (2) | JP3758191B2 (en) |
| KR (1) | KR100290496B1 (en) |
| CN (1) | CN1168899C (en) |
| WO (1) | WO1997028370A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101925706B (en) * | 2008-01-24 | 2014-04-09 | 株式会社荏原制作所 | Water supply |
| CN103899559A (en) * | 2012-12-27 | 2014-07-02 | 北京谊安医疗系统股份有限公司 | High-performance turbine controller of respirator |
| CN104373158A (en) * | 2014-05-30 | 2015-02-25 | 门冉 | Novel turboset driven through boiler and control method thereof |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6853954B2 (en) * | 2002-09-24 | 2005-02-08 | John K. Apostolides | Methods and systems for collecting and processing data in association with machine operation and maintenance |
| JP5140237B2 (en) * | 2004-05-10 | 2013-02-06 | 株式会社荏原製作所 | Water supply equipment |
| JP4812275B2 (en) * | 2004-09-22 | 2011-11-09 | 株式会社荏原製作所 | Water supply equipment |
| KR100900409B1 (en) | 2009-01-30 | 2009-06-02 | 주식회사 두크 | One-heatsink booster pump multi-inverter with change drive function using loss power estimation |
| JP5775791B2 (en) * | 2011-10-25 | 2015-09-09 | 株式会社日立産機システム | Water supply apparatus and operation method of water supply apparatus |
| KR101408675B1 (en) | 2014-03-20 | 2014-06-18 | 주식회사 두크 | Booster pump system and its control method |
| US9937990B2 (en) | 2014-08-01 | 2018-04-10 | Circor Pumps North America, Llc | Intelligent sea water cooling system |
| TWI727729B (en) * | 2020-03-30 | 2021-05-11 | 普新氣體股份有限公司 | Pressure control equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59115497A (en) * | 1982-12-23 | 1984-07-03 | Mitsubishi Heavy Ind Ltd | Operation method of turbo blower |
| JPH0816478B2 (en) * | 1988-05-07 | 1996-02-21 | 大平洋機工株式会社 | How to calibrate pump head characteristics |
| JP2548973B2 (en) * | 1988-09-22 | 1996-10-30 | 二國機械工業株式会社 | Automatic alternating parallel operation system |
| JP2872475B2 (en) * | 1992-02-20 | 1999-03-17 | 株式会社日立製作所 | Water supply system |
| JP2933249B2 (en) * | 1992-02-28 | 1999-08-09 | 株式会社日立製作所 | Water supply device and its pump control method |
| JP3662605B2 (en) * | 1994-07-11 | 2005-06-22 | 株式会社川本製作所 | Pump control method |
-
1996
- 1996-03-22 WO PCT/JP1996/000760 patent/WO1997028370A1/en active IP Right Grant
- 1996-03-22 JP JP52747697A patent/JP3758191B2/en not_active Expired - Fee Related
- 1996-03-22 CN CNB961802308A patent/CN1168899C/en not_active Expired - Fee Related
- 1996-03-22 KR KR1019980705923A patent/KR100290496B1/en not_active IP Right Cessation
-
2009
- 2009-12-14 JP JP2009282386A patent/JP5286238B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101925706B (en) * | 2008-01-24 | 2014-04-09 | 株式会社荏原制作所 | Water supply |
| CN103899559A (en) * | 2012-12-27 | 2014-07-02 | 北京谊安医疗系统股份有限公司 | High-performance turbine controller of respirator |
| CN103899559B (en) * | 2012-12-27 | 2016-04-20 | 北京谊安医疗系统股份有限公司 | A kind of high-performance respiratory machine Turbine controller |
| CN104373158A (en) * | 2014-05-30 | 2015-02-25 | 门冉 | Novel turboset driven through boiler and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100290496B1 (en) | 2001-11-15 |
| JP2010065703A (en) | 2010-03-25 |
| KR19990082198A (en) | 1999-11-25 |
| CN1168899C (en) | 2004-09-29 |
| WO1997028370A1 (en) | 1997-08-07 |
| JP5286238B2 (en) | 2013-09-11 |
| JP3758191B2 (en) | 2006-03-22 |
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