CN109391176A - A kind of industrial water pump motor work system - Google Patents
A kind of industrial water pump motor work system Download PDFInfo
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- CN109391176A CN109391176A CN201811572257.9A CN201811572257A CN109391176A CN 109391176 A CN109391176 A CN 109391176A CN 201811572257 A CN201811572257 A CN 201811572257A CN 109391176 A CN109391176 A CN 109391176A
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- 239000008235 industrial water Substances 0.000 title claims abstract description 84
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 230000008878 coupling Effects 0.000 claims abstract description 3
- 238000010168 coupling process Methods 0.000 claims abstract description 3
- 238000005859 coupling reaction Methods 0.000 claims abstract description 3
- 230000005611 electricity Effects 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000007257 malfunction Effects 0.000 claims description 2
- 230000008054 signal transmission Effects 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000018199 S phase Effects 0.000 description 1
- 241000242583 Scyphozoa Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
- H02P5/74—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more ac dynamo-electric motors
-
- 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
-
- 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
- F04B49/20—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 by changing the driving speed
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Multiple Motors (AREA)
Abstract
The present invention relates to industrial water pump technical fields, specifically a kind of industrial water pump motor work system, it is equipped with three industrial water pumps, every industrial water pump is connected through shaft coupling with industrial water pump motor respectively, the water outlet of three industrial water pumps is connected through outlet pipe with water delivery main pipe respectively, it is characterized in that three industrial water pump motors are set to No.1 motor, No. two motors and No. three motors, No.1 electric machine controller and No. two electric machine controllers are respectively equipped on No.1 motor and No. two motors, No. three motors are equipped with No. three frequency converters, No. three frequency converters, No.1 electric machine controller and No. two electric machine controllers are connected with PLC controller respectively, water delivery main pipe is equipped with temperature transmitter and pressure transmitter, temperature and pressure situation on temperature transmitter and pressure transmitter one end detection water delivery main pipe, temperature transmitter and pressure transmitter The other end be connected with PLC controller, have many advantages, such as structurally reasonable, energy saving, less convenient for operating, investing.
Description
Technical field
The present invention relates to industrial water pump technical field, specifically it is a kind of it is structurally reasonable, energy saving, convenient for operation,
Invest less industrial water pump motor work system.
Background technique
It is well known that in the Turbo-generator Set in middle-size and small-size power station, it is typically provided three industrial water pump motors, but
When system process designs, the long-term power saving etc. of unit is not considered, if industrial water pump is all run using fixed frequency, is caused big
Measure the waste of electric energy.
Currently, although industrial water pump is star-angle decompression starting, but electric current when starting is still very big, will affect power grid
Power supply safety and other electrical equipments it is stable, but also have following defects that
1. the long-term power frequency operation of industrial water pump motor, belongs to non-economy operation, waste of energy is serious.
It is often checked 2. industrial water pump motor need to change water personnel, controls start and stop, heavy workload.
3. industrial water pump electric motor starting is very big to the impact of equipment, have a significant impact to mechanical life.
4. 3 start and stop as needed of industrial water pump motor, three air compressor machines configure frequency converter simultaneously, and two director's phases, which left unused, makes
At the waste of resource.
Summary of the invention
Present invention aim to address above-mentioned the deficiencies in the prior art, provide it is a kind of it is structurally reasonable, energy saving, convenient for behaviour
Make, invest less industrial water pump motor work system.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of industrial water pump motor work system is equipped with three industrial water pumps, and every industrial water pump is respectively through shaft coupling and industry
Pump motor is connected, and the water outlet of three industrial water pumps is connected through outlet pipe with water delivery main pipe respectively, and described is defeated
One end of jellyfish pipe is connected with three industrial water pumps respectively, and the other end of water delivery main pipe is connected with water system, feature
It is that three industrial water pump motors are set to No.1 motor, No. two motors and No. three motors, the No.1 motor
Be respectively equipped with No.1 electric machine controller and No. two electric machine controllers on No. two motors, No. three motors are equipped with No. three changes
Frequency device, No. three frequency converters, No.1 electric machine controller and No. two electric machine controllers are connected with PLC controller respectively, institute
The water delivery main pipe stated is equipped with temperature transmitter and pressure transmitter, the temperature transmitter and the detection of pressure transmitter one end
The other end of temperature and pressure situation in water delivery main pipe, temperature transmitter and pressure transmitter is connected with PLC controller, leads to
Excess temperature transmitter and pressure transmitter by temperature or pressure signal transmission to PLC controller, then by PLC controller by signal
No.1 electric machine controller, No. two electric machine controllers and No. three frequency converters are delivered separately to, and then realizes and passes through No.1 motor control
Device, No. two electric machine controllers and No. three frequency converters control the work of No.1 motor, No. two motors and No. three motors respectively.
The electric control theory of No. three frequency converters of the present invention is as follows: being equipped with Switching Power Supply, Switching Power Supply inlet wire connects
Total air switch is connect, the control outlet of total air switch is connected with potentiometer, and one end of the potentiometer is opened with total air
The control outlet of pass is connected, and the other end of potentiometer is connected with No. three motors, total air switch and potentiometer it
Between connect No. three converting operation circuits, No. three converting operation circuits are pressed by No. three air switches, start button, stoppings
Button, K4 relay normally open contact, K4 relay normally closed contact, K2 relay normally open contact, K3 relay normally open contact, K1 relay
Device normally-closed contact, K1 relay coil, K2 relay coil, K3 relay coil, K4 relay coil, No. three motor work refer to
Show that lamp, No. three motors close indicator light, the normally opened auxiliary contact of No. three motors work, the normally opened auxiliary contact of No. three electrical faults and three
Number electrical fault indicator lamp groups at, one end of No. three air switches is connected with potentiometer, No. three air switches it is another
One end is connected with start button, and the other end of start button is mutually gone here and there with K1 relay normally closed contact, K3 relay coil respectively
Connection, the K3 relay coil after series connection are connected with another phase of Switching Power Supply, one K3 of start button both ends parallel connection
Relay normally open contact, the stop button are connected with K1 relay coil, stop button and K1 relay line after series connection
Circle is connected in parallel on the both ends of K3 relay coil and start button, the K2 relay coil and No. three normally opened auxiliary of electrical fault
Contact is connected in series, the K2 relay coil and No. three normally opened auxiliary contact of electrical fault after series connection be connected in parallel on stop button and K1 after
The both ends of electric apparatus coil, the K4 relay coil and No. three normally opened auxiliary contact of motors work are connected in series, the K4 after series connection
Relay coil and No. three normally opened auxiliary contact of motors work are connected in parallel on K2 relay coil and No. three normally opened auxiliary of electrical fault
The both ends of contact, No. three motor work lights are connected in series with K4 relay normally open contact, after series connection No. three motor
The both ends of work light and K4 relay normally open contact are connected in parallel on the both ends of K3 relay coil and start button respectively, described
No. three motors close indicator light be connected in series with K4 relay normally closed contact, after series connection No. three motor closing indicator light and K4 after
Electric appliance normally-closed contact be connected in parallel on the both ends of K3 relay coil and start button, No. three electrical fault indicator lights and K2 after
Electric appliance normally opened contact is connected in series, and the both ends of after series connection No. three electrical fault indicator light and K2 relay normally open contact are in parallel respectively
At the both ends of K3 relay coil and start button, the K4 relay normally open contact, K4 relay normally closed contact, K2 relay
Device normally opened contact, K3 relay normally open contact, start button, stop button, the normally opened auxiliary contact of No. three motors work, No. three electricity
The normally opened auxiliary contact of machine failure are connected through same lead with No. three air switches respectively, the K1 relay coil, K2 after
Electric apparatus coil, K3 relay coil, K4 relay coil, No. three motor work lights, No. three motors close indicator light and three
Number electrical fault indicator light is connected through same lead with another phase of Switching Power Supply respectively.
The electric control theory of No.1 electric machine controller of the present invention is as follows: be equipped with Switching Power Supply, Switching Power Supply into
Line connects total air switch, and the control outlet of total air switch is connected with No.1 motor KM1 relay normally open contact, No.1 electricity
Machine KM1 relay normally open contact is connected with No.1 motor, one end of the No.1 motor KM1 relay normally open contact and total
The control outlet of air switch is connected, and the other end of No.1 motor KM1 relay normally open contact is connected with No.1 motor, institute
No.1 motor operation circuit, the No.1 are connected between the total air switch stated and No.1 motor KM1 relay normally open contact
Motor operation circuit is pressed by No.1 air switch, K3 relay normally open contact, K3 relay normally closed contact, start button, stopping
Button, K1 relay normally closed contact, K1 relay coil, K3 relay coil, KM1 relay coil, the work instruction of No.1 motor
Lamp, No.1 motor close indicator lamp groups at, one end of the No.1 air switch is connected with KMI relay normally open contact,
The other end of the No.1 air switch is connected with start button, and the other end of start button is normally closed with K1 relay respectively
Contact, K3 relay coil are connected in series, and the K3 relay coil after series connection is connected with another phase of Switching Power Supply, and described opens
The both ends of a dynamic button K3 relay normally open contact in parallel, the stop button is connected with K1 relay coil, after series connection
Stop button and the both ends of K1 relay coil be connected in parallel on the both ends of start button and K3 relay coil respectively, it is described
KM1 relay coil is connected in series with KI relay normally closed contact and K3 relay normally open contact respectively, the KM1 relay after series connection
Coil, KI relay normally closed contact, K3 relay normally open contact both ends be connected in parallel on stop button and K3 relay coil respectively
Both ends, the No.1 motor work light connects with K3 relay normally open contact, and the No.1 motor work after series connection refers to
Show lamp, the both ends of K3 relay normally open contact are connected in parallel on the both ends of start button and K3 relay coil, the No.1 motor
Indicator light is closed to be connected in series with K3 relay normally closed contact, the No.1 motor indicator light, K3 relay normally closed contact after series connection
Both ends are connected in parallel on the both ends of start button and K3 relay coil respectively, and the K3 relay normally open contact, K3 relay are normal
Closed contact, start button, stop button are connected through same lead with No.1 air switch respectively, the No.1 motor work
Indicator light, No.1 motor close indicator light, K3 relay coil, K1 relay coil and KM1 relay coil respectively through same
Lead is connected with another phase of Switching Power Supply.
The electric control theory of No. two electric machine controllers of the present invention is as follows: be equipped with Switching Power Supply, Switching Power Supply into
Line connects total air switch, and the control outlet of total air switch is connected with No.1 motor KM2 relay normally open contact, No. two electricity
Machine KM2 relay normally open contact is connected with No. two motors, one end of No. two motor KM2 relay normally open contacts and total
The control outlet of air switch is connected, and the other end of No. two motor KM2 relay normally open contacts is connected with No. two motors, institute
No. two motor operation circuits of connection between the total air switch stated and No. two motor KM2 relay normally open contacts, described No. two
Motor operation circuit is pressed by No. two air switches, K3 relay normally open contact, K3 relay normally closed contact, start button, stopping
Button, K1 relay normally closed contact, K1 relay coil, K3 relay coil, KM2 relay coil, No. two motor work instructions
Lamp, No. two motors close indicator lamp groups at, one end of No. two air switches is connected with KM2 relay normally open contact,
The other end of No. two air switches is connected with start button, and the other end of start button is normally closed with K1 relay respectively
Contact, K3 relay coil are connected in series, and the K3 relay coil after series connection is connected with another phase of Switching Power Supply, and described opens
The both ends of a dynamic button K3 relay normally open contact in parallel, the stop button is connected with K1 relay coil, after series connection
Stop button and the both ends of K1 relay coil be connected in parallel on the both ends of start button and K3 relay coil respectively, it is described
KM2 relay coil is connected in series with KI relay normally closed contact and K3 relay normally open contact respectively, the KM1 relay after series connection
Coil, KI relay normally closed contact, K3 relay normally open contact both ends be connected in parallel on stop button and K3 relay coil respectively
Both ends, No. two motor work lights connect with K3 relay normally open contact, and the work of after series connection No. two motor refers to
Show lamp, the both ends of K3 relay normally open contact are connected in parallel on the both ends of start button and K3 relay coil, No. two motors
It closes indicator light to be connected in series with K3 relay normally closed contact, after series connection No. two motor indicator light, K3 relay normally closed contact
Both ends are connected in parallel on the both ends of start button and K3 relay coil respectively, and the K3 relay normally open contact, K3 relay are normal
Closed contact, start button, stop button are connected through same lead with No. two air switches respectively, No. two motors work
Indicator light, No. two motors close indicator light, K3 relay coil, K1 relay coil and KM2 relay coil respectively through same
Lead is connected with another phase of Switching Power Supply.
The No.1 electricity in No. three frequency converters operation circuit, No.1 electric machine controller in No. three frequency converters of the present invention
It is respectively equipped in No. two motor operation circuits in machine operation circuit, No. two electric machine controllers and turns Guan Kaiguan, the conversion is opened
Close one end and start button and be connected to form automatic control loop, turn to close the other end of switch through hand control switch respectively with KI
Relay coil is connected with KI relay normally closed contact, and starting switch in the hand control switch is normal with KI relay
Closed contact is connected, and the shutdown switch in the hand control switch is connected with KI relay coil, by turning Guan Kaiguan
Conversion realize and automatically control and the conversion that manually controls.
The present invention is structurally reasonable, energy saving, less convenient for operating, investing due to using the above structure, having many advantages, such as.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is No. three converter circuit schematic diagrams in the present invention.
Fig. 3 is the circuit diagram of No.1 electric machine controller and No. two electric machine controllers in the present invention.
Specific embodiment
The following further describes the present invention with reference to the drawings:
As shown in the picture, a kind of industrial water pump motor work system is equipped with three industrial water pumps, and every industrial water pump is respectively through joining
Axis device is connected with industrial water pump motor, and the water outlet of three industrial water pumps is connected through outlet pipe with water delivery main pipe 4 respectively
It connects, one end of the water delivery main pipe is connected with three industrial water pumps respectively, the other end and the water system phase of water delivery main pipe
Connection, it is characterised in that three industrial water pump motors are set to 1, No. two motor 2 of No.1 motor and No. three motors 3,
It is respectively equipped with No.1 electric machine controller 5 and No. two electric machine controllers 6 on the No.1 motor 1 and No. two motors 2, described three
Number motor 3 is equipped with No. three frequency converters 7, and No. three frequency converters 7, No.1 electric machine controller 5 and No. two electric machine controllers 6 divide
It is not connected with PLC controller 10, the water delivery main pipe 4 is equipped with temperature transmitter 8 and pressure transmitter 9, the temperature
The temperature and pressure situation on transmitter 8 and 9 one end of pressure transmitter detection water delivery main pipe 4 is spent, temperature transmitter 8 and pressure become
The other end of device 9 is sent to be connected with PLC controller 10, by temperature transmitter 8 and pressure transmitter 9 by temperature or pressure signal
PLC controller 10 is passed to, then signal is delivered separately to by 5, No. two motor controls of No.1 electric machine controller by PLC controller 10
Device 6 and No. three frequency converters 7 processed, and then realize and divided by 5, No. two electric machine controllers 6 of No.1 electric machine controller and No. three frequency converters 7
Not Kong Zhi No.1 motor 1, No. two motor 2 and No. three motors 3 work, the electric control theory of No. three frequency converters 7 is such as
Under: it is equipped with Switching Power Supply, power supply uses AC380V, and Switching Power Supply inlet wire connects total air switch, and the control of total air switch goes out
Line is connected with potentiometer, and one end of the potentiometer is connected with the control outlet of total air switch, potentiometer it is another
End is connected with No. three motors, No. three converting operation circuits of connection between total air switch and potentiometer, and described three
Number converting operation circuit is normally closed by No. three air switches, start button, stop button, K4 relay normally open contact, K4 relay
Contact, K2 relay normally open contact, K3 relay normally open contact, K1 relay normally closed contact, K1 relay coil, K2 relay
Coil, K3 relay coil, K4 relay coil, No. three motor work lights, No. three motors close indicator light, No. three motors
Normally opened auxiliary contact, the normally opened auxiliary contact of No. three electrical faults and No. three electrical fault indicator lamp groups work into described No. three
One end of air switch is connected with potentiometer, and the other end of No. three air switches is connected with start button, start button
The other end is connected in series with K1 relay normally closed contact, K3 relay coil respectively, the K3 relay coil after series connection and switch electricity
Another phase in source is connected, a start button both ends K3 relay normally open contact in parallel, the stop button with
The series connection of K1 relay coil, stop button and K1 relay coil after series connection are connected in parallel on K3 relay coil and start button
Both ends, the K2 relay coil and No. three normally opened auxiliary contact of electrical fault are connected in series, the K2 relay coil after series connection
The both ends of stop button and K1 relay coil, the K4 relay line are connected in parallel on No. three normally opened auxiliary contact of electrical fault
Circle and No. three normally opened auxiliary contact of motors work are connected in series, K4 relay coil and No. three normally opened auxiliary of motors work after series connection
At the both ends of K2 relay coil and No. three normally opened auxiliary contact of electrical fault, No. three motors work to be indicated contact shunt
Lamp is connected in series with K4 relay normally open contact, the both ends of after series connection No. three motor work light and K4 relay normally open contact
It is connected in parallel on the both ends of K3 relay coil and start button respectively, No. three motors close indicator light and K4 relay is normally closed
Contact is connected in series, and after series connection No. three motor closes indicator light and is connected in parallel on K3 relay coil with K4 relay normally closed contact and opens
The both ends of dynamic button, No. three electrical fault indicator lights and K2 relay normally open contact are connected in series, after series connection No. three electricity
The both ends of machine malfunction indicator lamp and K2 relay normally open contact are connected in parallel on the both ends of K3 relay coil and start button, institute respectively
K4 relay normally open contact, K4 relay normally closed contact, K2 relay normally open contact, the K3 relay normally open contact, starting stated
Button, stop button, No. three motors work normally opened auxiliary contact, No. three normally opened auxiliary contact of electrical fault respectively through same lead
It is connected with No. three air switches, the K1 relay coil, K2 relay coil, K3 relay coil, K4 relay line
Circle, No. three motor work lights, No. three motors close indicator lights and No. three electrical fault indicator lights respectively through same lead with
Another phase of Switching Power Supply is connected, and the electric control theory of the No.1 electric machine controller is as follows: being equipped with Switching Power Supply, electricity
Source uses AC380V, and Switching Power Supply inlet wire connects total air switch, the control outlet and No.1 motor KM1 relay of total air switch
Device normally opened contact is connected, and No.1 motor KM1 relay normally open contact is connected with No.1 motor, the No.1 motor KM1
One end of relay normally open contact is connected with the control outlet of total air switch, No.1 motor KM1 relay normally open contact
The other end is connected with No.1 motor, connects one between total air switch and No.1 motor KM1 relay normally open contact
Number motor operation circuit, the No.1 motor operation circuit is by No.1 air switch, K3 relay normally open contact, K3 relay
Normally-closed contact, start button, stop button, K1 relay normally closed contact, K1 relay coil, K3 relay coil, KM1 relay
Device coil, No.1 motor work light, No.1 motor close indicator lamp groups at, one end of the No.1 air switch with
KMI relay normally open contact is connected, and the other end of the No.1 air switch is connected with start button, start button
The other end is connected in series with K1 relay normally closed contact, K3 relay coil respectively, the K3 relay coil after series connection and switch electricity
Another phase in source is connected, the both ends of a start button K3 relay normally open contact in parallel, the stop button
It connects with K1 relay coil, the both ends of stop button and K1 relay coil after series connection are connected in parallel on start button and K3 respectively
The both ends of relay coil, the KM1 relay coil respectively with KI relay normally closed contact and K3 relay normally open contact
It is connected in series, the both ends of KM1 relay coil, KI relay normally closed contact, K3 relay normally open contact after series connection are in parallel respectively
At the both ends of stop button and K3 relay coil, the No.1 motor work light and K3 relay normally open contact string
Connection, the both ends of No.1 motor work light, K3 relay normally open contact after series connection are connected in parallel on start button and K3 relay
The both ends of coil, the No.1 motor close indicator light and are connected in series with K3 relay normally closed contact, the No.1 motor after series connection
Indicator light, K3 relay normally closed contact both ends be connected in parallel on the both ends of start button and K3 relay coil, the K3 respectively
Relay normally open contact, K3 relay normally closed contact, start button, stop button are respectively through same lead and No.1 air switch
It is connected, the No.1 motor work light, No.1 motor close indicator light, K3 relay coil, K1 relay coil
It is connected respectively through same lead with another phase of Switching Power Supply with KM1 relay coil, No. two electric machine controllers
Electric control theory is as follows: being equipped with Switching Power Supply, power supply uses AC380V, and Switching Power Supply inlet wire connects total air switch, total empty
The control outlet of air cock is connected with No.1 motor KM2 relay normally open contact, No. two motor KM2 relay normally open contacts with
No. two motors are connected, one end of No. two motor KM2 relay normally open contacts and the control outlet phase of total air switch
Connection, the other end of No. two motor KM2 relay normally open contacts is connected with No. two motors, total air switch and No. two
No. two motor operation circuits are connected between motor KM2 relay normally open contact, No. two motor operation circuits are by No. two skies
Air cock, K3 relay normally open contact, K3 relay normally closed contact, start button, stop button, K1 relay normally closed contact,
K1 relay coil, K3 relay coil, KM2 relay coil, No. two motor work lights, No. two motors close indicator light
Composition, one end of No. two air switches is connected with KM2 relay normally open contact, No. two air switches it is another
One end is connected with start button, and the other end of start button is mutually gone here and there with K1 relay normally closed contact, K3 relay coil respectively
Connection, the K3 relay coil after series connection are connected with another phase of Switching Power Supply, and the both ends of the start button are one in parallel
K3 relay normally open contact, the stop button are connected with K1 relay coil, stop button and K1 relay after series connection
The both ends of coil are connected in parallel on the both ends of start button and K3 relay coil respectively, the KM2 relay coil respectively with KI
Relay normally closed contact and K3 relay normally open contact are connected in series, KM1 relay coil, the normally closed touching of KI relay after series connection
Point, K3 relay normally open contact both ends be connected in parallel on the both ends of stop button and K3 relay coil, No. two electricity respectively
Machine work light is connected with K3 relay normally open contact, after series connection No. two motor work light, the touching of K3 relay normally open
The both ends of point are connected in parallel on the both ends of start button and K3 relay coil, and No. two motors close indicator light and K3 relay
Normally-closed contact is connected in series, after series connection No. two motor indicator light, K3 relay normally closed contact both ends be connected in parallel on respectively starting by
The both ends of button and K3 relay coil, the K3 relay normally open contact, K3 relay normally closed contact, start button, stopping
Button is connected through same lead with No. two air switches respectively, and No. two motor work lights, No. two motors are closed
Indicator light, K3 relay coil, K1 relay coil and KM2 relay coil are another through same lead and Switching Power Supply respectively
Mutually it is connected, the No.1 motor fortune in No. three frequency converters operation circuit, No.1 electric machine controller in No. three frequency converters
It is respectively equipped in No. two motor operation circuits in row circuit, No. two electric machine controllers and turns Guan Kaiguan, the change-over switch one
End with start button be connected to form automatic control loop, turn close switch the other end through hand control switch respectively with KI relay
Device coil is connected with KI relay normally closed contact, starting switch and the normally closed touching of KI relay in the hand control switch
Point is connected, and the shutdown switch in the hand control switch is connected with KI relay coil, closes turning for switch by turning
Change and realize and automatically control and the conversion that manually controls, the present invention due to using the above structure, have it is structurally reasonable, energy saving,
Convenient for operating, investing the advantages that less.
The electric control theory of No. three frequency converters of the invention is as shown in Figure 2: one end of potentiometer and No. three industrial water pumps
Motor is connected, and the other end of potentiometer is connected through conducting wire with firewire L, and total air switch, the current potential are connected on firewire
No. three air switches, 1 pin of No. three air switches and 1 pin and 3 of change-over switch are connected on the conducting wire that device is connected with firewire
Pin is connected, and 2 pins of change-over switch are connected with 3 pins of start button, 5 pins of start button successively with KI relay
Device normally-closed contact, K3 relay coil are connected in series, and the K3 relay after series connection is connected on zero curve N, and the 4 of the change-over switch
Pin is connected with 9 pins of manual switch, 5 pin phases of the other end started switch in manual switch and start button
Even, the shutdown switch in manual switch is connected with 11 pins of stop button, and the 1 of the other end of stop button and No. three switches
Pin is connected, and 11 pins and the K1 relay coil of the stop button are connected in series, and the K1 relay coil after series connection connects
It connects on zero curve, is connected to No. three air after K4 relay normally open contact and No. three motor work light HL1 series connection and opens
On 1 pin and zero curve closed, K4 relay normally closed contact and No. three motors close after indicator light HL2 connects and are connected to No. three
On 1 pin and zero curve of air switch, it is separately connected after K3 relay normally open contact and No. three electrical fault indicator light HL3 series connection
On 1 pin and zero curve of No. three air switches, the K2 relay coil and No. three normally opened auxiliary contact of electrical fault
NO19 leads ends are connected in series, and the K2 relay coil and No. three normally opened auxiliary contact of electrical fault after series connection are connected to No. three
On 1 pin and zero curve of air switch, the K4 relay coil and No. three normally opened auxiliary contact NO24 pins of motors work
It is connected in series, the normally opened auxiliary contact that work of the K4 relay coil and No. three motors after series connection are connected to No. three air switches
On 1 pin and zero curve, the electric control theory of No.1 electric machine controller of the invention and No. two electric machine controllers as shown in figure 3,
No.1 industrial water pump motor and No. two industrial water pump motors are respectively through KM1 relay coil normally opened contact and KM2 relay coil
Normally opened contact is connected on firewire, and KM1 relay coil normally opened contact or KM2 relay coil normally opened contact are through conducting wire and firewire
It is connected, air switch is connected on conducting wire, 1 pin of air switch is non-Lian Jie not three KM3 relay normally open contacts, one
KM3 relay normally closed contact, 1 pin for turning to close switch and 3 pins, a stop button, one of KM3 relay are normal
Contact is opened to be connected with after No.1 motor work light HL1 or No. two work light HL1 series connection with zero curve respectively, another
KM3 relay normally closed contact is connected on 5 pins of start button, and 3 pins of start button are connected with 2 pins of change-over switch
It connects, 5 pins of the start button are connected with K1 relay normally closed contact, 7 pins and K3 of K1 relay normally closed contact
It is connected after relay series connection with zero curve, the third KM3 relay normally closed contact is connected with K1 relay normally closed contact
It connects, 13 pins of the normally-closed contact of KI relay are connected to zero curve after connecting with KM1 relay coil or KM2 relay coil
On, 4 pins for turning to close switch are connected with manual switch, 5 pins of manual switch started switch with start button
It is connected, the shutdown switch of manual switch is connected with 11 pins of stop button, 11 pins and K1 relay of stop button
It is connected on zero curve after coil series connection.
When in use, No.1 industrial water pump motor, No. two industrial water pump motors and No. three industrial water pump motor power transmissions are complete
Bi Hou opens PLC controller, by the control of # No.1 industrial water pump motor, No. two industrial water pump motors and No. three industrial water pump motors
SS change-over switch in circuit processed is beaten to position is automatically controlled, and industrial water pump system enters automatic operating state, temperature pick-up
Device and pressure transmitter respectively send industrial coolant-temperature gage W and pressure P signal to PLC controller, and the every 10s of PLC controller is to input
Signal is once judged, and then controls the start and stop of #1, #2 industrial water pump and the running frequency that #3 industrial water pump is electrical, if gone out
Existing failure, then output signal control alarm reports failure to PLC controller.
If one, industry water pressure P is lower than the low pressure limit of industry water, PLC controller is controlled in No. three frequency converters
Electric current increases 1mA, increases No. three industrial water pump electric machine frequencies by 2.5Hz, after No. three industrial water pump electric machine frequencies reach 50Hz,
If normally opened touching 9 and 5 terminals between of the industry water pressure P still less than low pressure limit, in No.1 industrial water pump electric machine controller
Point closure, the starting of No.1 industrial water pump；After the operation of No.1 industrial water pump, No. three industrial water pump electric machine frequencies reach 50Hz, industry
Water pressure P then starts No. two industrial water pumps still less than low pressure limit；No.1, No. two and No. three industrial water pump motor power frequency operations
After ten minutes, industrial water pressure P then issues alarm signal still less than low pressure limit.
If two, industry water pressure P is met the requirements, the frequency f of No. three industrial water pump motors, which is calculate by the following formula, to be obtained:
F=(4+16*(W-c)/(d-c)) * 2.5
F:#3 industrial water pump electric machine frequency；
W: industrial coolant-temperature gage；
C: industry water lowest temperature；
D: industry water temperature upper limit；
It is when industrial coolant-temperature gage W is more than industry water temperature upper limit, then normal between 9 and 5 terminals in No.1 industrial water pump controller
Open contact closure, the starting of No.1 industrial water pump；After the starting of No.1 industrial water pump, industrial coolant-temperature gage W is still above on industrial coolant-temperature gage
In limited time, then the normally opened contact closure between 9 and 5 terminals in No. two industrial water pump control cabinets, No. two industrial water pumps start；No.1,
After ten minutes, industrial coolant-temperature gage W is still above industry water temperature upper limit then No. three for No. two and No. three industrial water pump motor power frequency operations
Normally opened contact closure between 1 and 13 terminals in industrial water pump control cabinet, issues alarm signal.
If three, industry water pressure P is greater than the upper pressure limit of industry water, PLC controller controls the electricity of No. three frequency converters
Stream reduces 1mA, and No. three industrial water pump electric machine frequencies is made to reduce 2.5Hz；After No. three industrial water pump electric machine frequencies are down to 0Hz, such as
Fruit industry water pressure P is still greater than upper pressure limit, then the normally-closed contact between 9 and 11 terminals in No. two industrial water pump control cabinets is disconnected
It opens, No. two industrial water pumps are closed；After No. two industrial water pumps are closed, No. three industrial water pump electric machine frequencies are down to 0Hz, industry water again
Pressure P is still greater than upper pressure limit, then the normally-closed contact between 9 and 11 terminals in No.1 industrial water pump controller disconnects, and turns off
No.1 industrial water pump；After No.1, No. two and No. three industrial water pump motors all close 1 minute, then 1 and 13 ends in No. three frequency converters
Normally opened contact closure between son, issues alarm signal.
The utility model has the advantages that being in use, industrial water pump rated head is 60.6m, and lift can minimize according to the actual situation
Lift is 30m, according to the relationship of pump capacity, lift and electric machine frequency and power of motor: 1. Q1/Q2=f1/f2 ② H1/H2=
(f1/f2)2 ③ P1/P2=(f1/f2)3(Q--flow, H--lift, f--frequency), present actual current 50A, practical function
Rate 26.3KW makes industrial water pump lift be down to 30m, output frequency is according to formula after adding frequency converter by adjusting motor speed
2. being f2 =(30/60)-22. 3. 50=35.36HZ, output power and are P according to formula2=(30/60)2/330KW=
18.89KW can be obtained than present actual motion power, it is contemplated that can save energy 7.4 per hour thus according to the theoretical surplus capacity of lift
KWh, by annual operation 8640 hours, can economize on electricity 63726KWh every year.
By Frequency Converter Control motor, it is adjusted to industrial coolant-temperature gage convenient for changing water personnel, is conducive to the fortune of industrial water system
Row, and the service life by that can extend motor and pump after attached with frequency converters, greatly save the consumption of electric energy.
Claims (5)
1. a kind of industrial water pump motor work system is equipped with three industrial water pumps, every industrial water pump is respectively through shaft coupling and work
Industry pump motor is connected, and the water outlet of three industrial water pumps is connected through outlet pipe with water delivery main pipe respectively, described
One end of water delivery main pipe is connected with three industrial water pumps respectively, and the other end of water delivery main pipe is connected with water system, special
Sign is that three industrial water pump motors are set to No.1 motor, No. two motors and No. three motors, the No.1 electricity
No.1 electric machine controller and No. two electric machine controllers are respectively equipped on machine and No. two motors, No. three motors are equipped with No. three
Frequency converter, No. three frequency converters, No.1 electric machine controller and No. two electric machine controllers are connected with PLC controller respectively,
The water delivery main pipe is equipped with temperature transmitter and pressure transmitter, the temperature transmitter and the inspection of pressure transmitter one end
The other end of temperature and pressure situation in survey water delivery main pipe, temperature transmitter and pressure transmitter is connected with PLC controller,
By temperature transmitter and pressure transmitter by temperature or pressure signal transmission to PLC controller, then will letter by PLC controller
No.1 electric machine controller, No. two electric machine controllers and No. three frequency converters number are delivered separately to, and then realizes and passes through the control of No.1 motor
Device, No. two electric machine controllers and No. three frequency converters processed control the work of No.1 motor, No. two motors and No. three motors respectively.
2. a kind of industrial water pump motor work system according to claim 1, it is characterised in that No. three frequency converters
Electric control theory it is as follows: be equipped with Switching Power Supply, Switching Power Supply inlet wire connects total air switch, and the control of total air switch goes out
Line is connected with potentiometer, and one end of the potentiometer is connected with the control outlet of total air switch, potentiometer it is another
End is connected with No. three motors, No. three converting operation circuits of connection between total air switch and potentiometer, and described three
Number converting operation circuit is normally closed by No. three air switches, start button, stop button, K4 relay normally open contact, K4 relay
Contact, K2 relay normally open contact, K3 relay normally open contact, K1 relay normally closed contact, K1 relay coil, K2 relay
Coil, K3 relay coil, K4 relay coil, No. three motor work lights, No. three motors close indicator light, No. three motors
Normally opened auxiliary contact, the normally opened auxiliary contact of No. three electrical faults and No. three electrical fault indicator lamp groups work into described No. three
One end of air switch is connected with potentiometer, and the other end of No. three air switches is connected with start button, start button
The other end is connected in series with K1 relay normally closed contact, K3 relay coil respectively, the K3 relay coil after series connection and switch electricity
Another phase in source is connected, a start button both ends K3 relay normally open contact in parallel, the stop button with
The series connection of K1 relay coil, stop button and K1 relay coil after series connection are connected in parallel on K3 relay coil and start button
Both ends, the K2 relay coil and No. three normally opened auxiliary contact of electrical fault are connected in series, the K2 relay coil after series connection
The both ends of stop button and K1 relay coil, the K4 relay line are connected in parallel on No. three normally opened auxiliary contact of electrical fault
Circle and No. three normally opened auxiliary contact of motors work are connected in series, K4 relay coil and No. three normally opened auxiliary of motors work after series connection
At the both ends of K2 relay coil and No. three normally opened auxiliary contact of electrical fault, No. three motors work to be indicated contact shunt
Lamp is connected in series with K4 relay normally open contact, the both ends of after series connection No. three motor work light and K4 relay normally open contact
It is connected in parallel on the both ends of K3 relay coil and start button respectively, No. three motors close indicator light and K4 relay is normally closed
Contact is connected in series, and after series connection No. three motor closes indicator light and is connected in parallel on K3 relay coil with K4 relay normally closed contact and opens
The both ends of dynamic button, No. three electrical fault indicator lights and K2 relay normally open contact are connected in series, after series connection No. three electricity
The both ends of machine malfunction indicator lamp and K2 relay normally open contact are connected in parallel on the both ends of K3 relay coil and start button, institute respectively
K4 relay normally open contact, K4 relay normally closed contact, K2 relay normally open contact, the K3 relay normally open contact, starting stated
Button, stop button, No. three motors work normally opened auxiliary contact, No. three normally opened auxiliary contact of electrical fault respectively through same lead
It is connected with No. three air switches, the K1 relay coil, K2 relay coil, K3 relay coil, K4 relay line
Circle, No. three motor work lights, No. three motors close indicator lights and No. three electrical fault indicator lights respectively through same lead with
Another phase of Switching Power Supply is connected.
3. a kind of industrial water pump motor work system according to claim 1, it is characterised in that the No.1 motor control
The electric control theory of device processed is as follows: being equipped with Switching Power Supply, Switching Power Supply inlet wire connects total air switch, the control of total air switch
It produces line to be connected with No.1 motor KM1 relay normally open contact, No.1 motor KM1 relay normally open contact and No.1 motor phase
Connection, one end of the No.1 motor KM1 relay normally open contact are connected with the control outlet of total air switch, No.1 electricity
The other end of machine KM1 relay normally open contact is connected with No.1 motor, total air switch and No.1 motor KM1 relay
Between device normally opened contact connect No.1 motor operation circuit, the No.1 motor operation circuit by No.1 air switch, K3 after
Electric appliance normally opened contact, K3 relay normally closed contact, start button, stop button, K1 relay normally closed contact, K1 relay line
Circle, K3 relay coil, KM1 relay coil, No.1 motor work light, No.1 motor close indicator lamp groups at described
One end of No.1 air switch be connected with KMI relay normally open contact, the other end of the No.1 air switch with open
Dynamic button is connected, and the other end of start button is connected in series with K1 relay normally closed contact, K3 relay coil respectively, after series connection
K3 relay coil be connected with another phase of Switching Power Supply, the both ends of a start button K3 relay in parallel is normal
Contact is opened, the stop button is connected with K1 relay coil, the both ends of stop button and K1 relay coil after series connection
It is connected in parallel on the both ends of start button and K3 relay coil respectively, the KM1 relay coil is normally closed with KI relay respectively
Contact and K3 relay normally open contact are connected in series, KM1 relay coil, KI relay normally closed contact, K3 relay after series connection
The both ends of normally opened contact are connected in parallel on the both ends of stop button and K3 relay coil, the No.1 motor work light respectively
It connects with K3 relay normally open contact, the both ends of No.1 motor work light, K3 relay normally open contact after series connection are in parallel
At the both ends of start button and K3 relay coil, the No.1 motor is closed indicator light and is mutually gone here and there with K3 relay normally closed contact
Connection, the both ends of No.1 motor indicator light, K3 relay normally closed contact after series connection are connected in parallel on start button and K3 relay respectively
The both ends of coil, the K3 relay normally open contact, K3 relay normally closed contact, start button, stop button pass through together respectively
One lead is connected with No.1 air switch, and the No.1 motor work light, No.1 motor close indicator light, K3 relay
Device coil, K1 relay coil and KM1 relay coil are connected through same lead with another phase of Switching Power Supply respectively.
4. a kind of industrial water pump motor work system according to claim 1, it is characterised in that No. two motor controls
The electric control theory of device processed is as follows: being equipped with Switching Power Supply, Switching Power Supply inlet wire connects total air switch, the control of total air switch
It produces line to be connected with No.1 motor KM2 relay normally open contact, No. two motor KM2 relay normally open contacts and No. two motor phases
Connection, described one end of No. two motor KM2 relay normally open contacts are connected with the control outlet of total air switch, No. two electricity
The other end of machine KM2 relay normally open contact is connected with No. two motors, total air switch and No. two motor KM2 relays
Between device normally opened contact connect No. two motor operation circuits, No. two motor operation circuits by No. two air switches, K3 after
Electric appliance normally opened contact, K3 relay normally closed contact, start button, stop button, K1 relay normally closed contact, K1 relay line
Circle, K3 relay coil, KM2 relay coil, No. two motor work lights, No. two motors close indicator lamp groups at described
One end of No. two air switches be connected with KM2 relay normally open contact, the other end of No. two air switches with open
Dynamic button is connected, and the other end of start button is connected in series with K1 relay normally closed contact, K3 relay coil respectively, after series connection
K3 relay coil be connected with another phase of Switching Power Supply, the both ends of a start button K3 relay in parallel is normal
Contact is opened, the stop button is connected with K1 relay coil, the both ends of stop button and K1 relay coil after series connection
It is connected in parallel on the both ends of start button and K3 relay coil respectively, the KM2 relay coil is normally closed with KI relay respectively
Contact and K3 relay normally open contact are connected in series, KM1 relay coil, KI relay normally closed contact, K3 relay after series connection
The both ends of normally opened contact are connected in parallel on the both ends of stop button and K3 relay coil, No. two motor work lights respectively
It connects with K3 relay normally open contact, after series connection No. two motor work light, the both ends of K3 relay normally open contact are in parallel
At the both ends of start button and K3 relay coil, No. two motors are closed indicator light and are mutually gone here and there with K3 relay normally closed contact
Connection, the both ends of No. two motor indicator lights, K3 relay normally closed contact after series connection are connected in parallel on start button and K3 relay respectively
The both ends of coil, the K3 relay normally open contact, K3 relay normally closed contact, start button, stop button pass through together respectively
One lead is connected with No. two air switches, and No. two motor work lights, No. two motors close indicator light, K3 relay
Device coil, K1 relay coil and KM2 relay coil are connected through same lead with another phase of Switching Power Supply respectively.
5. a kind of industrial water pump motor work system according to claim 2,3,4, it is characterised in that No. three changes
No. three frequency converters in frequency device run circuit, the No.1 motor operation circuit in No.1 electric machine controller, No. two electric machine controllers
In No. two motor operation circuits in be respectively equipped with and turn Guan Kaiguan, described change-over switch one end is connected to form with start button
Automatic control loop, turn close switch the other end through hand control switch respectively with KI relay coil and the normally closed touching of KI relay
Point is connected, and starting switch in the hand control switch is connected with KI relay normally closed contact, the manual control
Shutdown switch in system switch is connected with KI relay coil, is realized and is automatically controlled and manual control by a turn conversion for pass switch
The conversion of system.
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| CN201811572257.9A CN109391176A (en) | 2018-12-21 | 2018-12-21 | A kind of industrial water pump motor work system |
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