CN104852460A - Inversion circuit of sewage processing equipment power system - Google Patents
Inversion circuit of sewage processing equipment power system Download PDFInfo
- Publication number
- CN104852460A CN104852460A CN201510261398.9A CN201510261398A CN104852460A CN 104852460 A CN104852460 A CN 104852460A CN 201510261398 A CN201510261398 A CN 201510261398A CN 104852460 A CN104852460 A CN 104852460A
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- Prior art keywords
- circuit
- power
- inverter circuit
- control module
- dynamical system
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/539—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency
- H02M7/5395—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses an inversion circuit of a sewage processing equipment power system. The inversion circuit comprises a power tube driving chip and six power tubes. The power tube driving chip is connected with a microprocessor so that the corresponding power tubes can be driven to be alternatively conducted and turned off according to pulse width modulation signals output by the microprocessor. The six power tubes are divided into three groups, and each group of the power tubes control one phase of AC output. The inversion circuit of the sewage processing equipment power system can improve the performance of the power system at least from one aspect of energy conservation and environmental protection, safety, anti-interference property or controllability, low noise and high efficiency and the like.
Description
Technical field
The present invention relates to sewage disposal device, particularly relate to sewage disposal device dynamical system and subsystem thereof or parts.
Background technology
In sewage disposal device dynamical system, the confession electrical switching device that control module is connected to feeder ear connected by blower fan as load equipment, the alternating current that feeder ear exports is converted to alternating current needed for load equipment or direct current by this control module, reaches the control to load equipment thus.
The upper Shortcomings of above-mentioned dynamical system design: adopt single mains-supplied, inadequate environmental protection and energy saving; Lighting Protection Measures is good not, and security of system is poor; Interference protection measure is not ideal enough, causes larger impact to the stable operation of load equipment; It is convenient not to control, and can not meet the demand of user well; Fan vibration noise is large, and efficiency is not high; Etc..In view of this, be necessary to relate to new sewage disposal device dynamical system and subsystem thereof, to make its performance be improved.
Summary of the invention
For the defect that prior art exists, the object of the present invention is to provide sewage disposal device dynamical system and subsystem thereof or parts, so as at least can energy-conserving and environment-protective, fail safe, anti-interference or can handling, low-noise high-efficiency etc. some in the performance of sewage disposal device dynamical system is improved.
For solving above technical problem, the invention provides a kind of inverter circuit of sewage disposal device dynamical system, this sewage disposal device dynamical system comprises the photovoltaic power supply device connected by shielded type cable, mains power supply, for electrical switching device, control module and blower fan, this photovoltaic power supply device comprises photovoltaic cell, photovoltaic controller, storage battery and inverter circuit, photovoltaic controller has charging circuit, discharge circuit and control circuit, charging circuit is connected between photovoltaic cell and storage battery, discharge circuit is connected between storage battery and inverter circuit, control circuit connects charging circuit respectively, discharge circuit and storage battery, inverter circuit is connected to for electrical switching device, this inverter circuit comprises power tube driving chip and six power tubes: power tube driving chip is connected to microprocessor, to drive corresponding power tube alternate conduction and shutoff according to the pulse width modulating signal that microprocessor exports, six power tubes are divided into three groups, and every group power controls a cross streams and exports.
Compared with prior art, the present invention can improve the performance of sewage disposal device dynamical system effectively, and it at least can obtain the advantage of following some aspects:
One, more energy-conserving and environment-protective.Adopt film photovoltaic cell, lightweight, efficient, high-specific-power and consumptive material is few; Controller can effectively lightning protection, improves system safety performance; Storage battery can ensure again the activity of storage battery while carrying out charging, avoid storage battery and deposit, thus extend the life-span of storage battery largely.。
Its two, improve fail safe.Adopt secondary lightning protection, most of thunder-strike current is wherein released by the first earth element of control module input; And control module output arranges the second earth element, make the residual voltage entering load less, be conducive to preventing load to be struck by lightning, improve its safety in utilization, extend its useful life.
Its three, strong interference immunity.Shielded type cable adopts 2 ground connection, limits the size of earth-current or interference, can invariably electric current or burn the danger of shield layer of shielded cable when disturbing excessive.The heart yearn of shielded type cable all devises heart yearn screen, the electromagnetic radiation being conducive to suppressing to produce between heart yearn, electrostatic coupling and electromagnetic induction; Also devise cable shield simultaneously, be conducive to suppressing outside electromagnetic interference.
Its four, can be better handling.Inverter circuit according to the setting signal of man-machine interface circuit, can control power tube by microcontroller circuit output pwm signal, is conducive to neatly by pre-provisioning request output voltage, thus meets the demand of different user.
Its five, fan performance is improved.By improving blade construction, the whirlpool produced during airflow passes trailing edge is smashed, thus effectively reduces flow resistance, reduces vibration & noise, and is conducive to improving fan efficiency.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit will become cheer and bright for those of ordinary skill in the art.Accompanying drawing only for illustrating the object of preferred implementation, and does not think limitation of the present invention.And in whole accompanying drawing, represent identical parts by identical reference symbol.In the accompanying drawings:
Fig. 1 is the block diagram of embodiment of the present invention sewage disposal device dynamical system;
Fig. 2 is the block diagram of embodiment of the present invention photovoltaic power supply device;
Fig. 3 is the structural representation of film photovoltaic cell of the present invention;
Fig. 4 is the schematic block circuit diagram of photovoltaic controller of the present invention;
Fig. 5 is the schematic block circuit diagram of storage battery of the present invention;
Fig. 6 is the schematic block circuit diagram of inverter circuit of the present invention;
Fig. 7 is the electrical principle block diagram of control module of the present invention;
Fig. 8 is shielded type cable ground connection schematic diagram of the present invention;
Fig. 9 is shielded type cable structural representation of the present invention;
Figure 10 a is the left view of fan impeller structure of the present invention;
Figure 10 b is the front view of fan impeller structure of the present invention.
Embodiment
Set forth a lot of detail in the following description so that fully understand the present invention.But the present invention can be much different from alternate manner described here to implement, those skilled in the art can when without prejudice to doing similar popularization when intension of the present invention, therefore the present invention is by the restriction of following public specific embodiment.
See Fig. 1, represent the preferred embodiment of sewage disposal device dynamical system of the present invention.This dynamical system comprise connected by shielded type cable photovoltaic power supply device 100, mains power supply 200, for electrical switching device 300, control module 400 and blower fan 500, photovoltaic power supply device 100 and mains power supply 200, wherein: the exportable 380V alternating current of photovoltaic power supply device 100, it is connected to for electrical switching device 300 together with mains power supply 200, to select different supply power modes; Control module 400, when for electrical switching device 300 output current, can drive the blower fan 500 as AC load to operate; The first earth element 600 and the second earth element 700 is accessed at the two ends of this control module 400 respectively, lightning current is introduced the earth, improves the fail safe of system thus.
The present embodiment comprises secondary lightning protection circuit, and specifically the first earth element 600 is closed spark gap, and between the input being connected to control module 400 and earth terminal, lightning current of can releasing can reach 20KA; Second earth element 700 is discharge tube, between the output being connected to control module 400 and earth terminal, the fraction thunder-strike current flowing through control module 400 is discharged further, namely a current limliting is remake to the residual voltage entering blower fan 500, make it lower than specified safe range.This just can make most of thunder-strike current be released by the first earth element 600 of control module 400 input, the second earth element 700 that control module 400 output is arranged then can make the residual voltage entering load less, thus be conducive to preventing load to be struck by lightning, improve its safety in utilization, extend its useful life.
The first above-mentioned earth element 600, second earth element 700 all can select the earth resistance of Zinc-oxide piezoresistor or other type to replace, and has good lightning protection effect equally.When lightning current is larger, Zinc-oxide piezoresistor is breakdown, and lightning current flows into earth terminal through Zinc-oxide piezoresistor rapidly, and the residual voltage entering blower fan 500 is clamped in preset range.
See Fig. 2, the theory diagram of photovoltaic power supply device of the present invention is shown.This photovoltaic power supply device 100 comprises film photovoltaic cell 110, photovoltaic controller 120, storage battery 130, inverter circuit 140, photovoltaic cell 110 is preferably film photovoltaic cell, photovoltaic controller 120 has charging circuit 121, discharge circuit 123 and control circuit 122, charging circuit 121 is connected between photovoltaic cell 110 and storage battery 130, discharge circuit 123 is connected between storage battery 130 and inverter circuit 140, control circuit 122 connects charging circuit 121, discharge circuit 123 and storage battery 130 respectively, and inverter circuit 140 is connected to for electrical switching device 300.
In Fig. 2, the core of film photovoltaic cell 110 photovoltaic power supply devices 100, its effect is that the radianting capacity of the sun is converted to electric energy, or is sent in storage battery and stores, or promotes blower fan 500 and work.The effect of photovoltaic controller 120 is the operating states controlling whole system, and storage battery is played to the effect of additives for overcharge protection, over.The effect of storage battery 130 is the electrical power storage sent by photovoltaic cell when there being illumination, and it's time to needs to discharge again.Blower fan 500, can speed governing easily as AC load.
See Fig. 3, the structural representation of film photovoltaic cell of the present invention is shown.This film photovoltaic cell 110 comprises the first electro-conductive glass substrate 110, deposit absorbent layer 120, resilient coating 130, conductive silver glue 140 and the second electro-conductive glass substrate 150, wherein: the first electro-conductive glass substrate 110, deposit absorbent layer 120, resilient coating 130, conductive silver glue 140 and the second electro-conductive glass substrate 150 from top to bottom set gradually; Extraction electrode (scheming not shown) in first electro-conductive glass substrate 110 and the second electro-conductive glass substrate 150, be generally that the first electro-conductive glass substrate 110 draws positive electrode above, the second electro-conductive glass substrate 150 draws negative electrode above.
In Fig. 3, the specification of above-mentioned each layer can be: the length of the first electro-conductive glass substrate 110, second electro-conductive glass substrate 150 is 40mm, and width is 15mm, and thickness is 3mm; Deposit absorbent layer 120 is made for semiconductor nano material, and length is 30mm, and width is 15mm, and thickness is 2 × 10
-3mm; Resilient coating 130 is In
2s
3material is made, and length is 25mm, and width is 15mm, and thickness is 4 × 10
-3mm; The length of conductive silver glue 140 is 20mm, and width is 15mm, and thickness is 2 × 10
-3mm.Setting like this, material consumption is few, manufactures energy consumption low, and has excellent effect at the aspect of performance such as voltage improving battery.
See Fig. 4, the schematic block circuit diagram of photovoltaic controller of the present invention is shown.This photovoltaic controller 120 comprises charging circuit 121, discharge circuit 123, control circuit 122 and lightning protection circuit 124, and charging circuit 121, discharge circuit 123 and storage battery 130 are in parallel, and lightning protection circuit 124 and storage battery 130 are connected.Owing to adding lightning protection circuit 124, the thunder-strike current flowing through storage battery 130 greatly reduces.
Lightning protection circuit 124 in the present embodiment is specially lightning protection inductance, and the thunder-strike current flowing through storage battery 130 after adding this lightning protection inductance greatly reduces; Meanwhile, the induction reactance of this lightning protection inductance much larger than accumulator internal resistance, thus at storage battery 130 two ends a point residual voltage also greatly reduce, also enhance the lightning protection capability of system like this.In addition, also can to connect respectively lightning protection inductance in charging circuit 121, discharge circuit 123, to improve lightning protection capability further.
See Fig. 5, the schematic block circuit diagram of storage battery of the present invention is shown.This storage battery 130 comprises accumulator body 131, battery management module 132, data/address bus 133, auxiliary power supply bus 135 and auxiliary charging control line 134, and wherein the positive pole of accumulator body 131 is connected with battery management module 132 respectively with negative pole.Further illustrate as follows.
In Fig. 5, this battery management module 132 comprises the detection control unit 1321 be connected respectively with the positive pole of accumulator body 131 and negative pole and the supplemental charging unit 1322 be connected respectively with negative pole with the positive pole of accumulator body 131, and detection control unit 201 is connected with supplemental charging unit 202; Data/address bus 133 is connected with detection control unit 1321; Auxiliary power supply bus 135 is connected with supplemental charging unit 1322; Auxiliary charging control line 134 is connected with the output of detection control unit 1321; Detection control unit 1321, for detecting the running status of accumulator body 131 in real time, when the real-time voltage of accumulator body 131 is less than threshold voltage, is charged by auxiliary power supply bus 135 pairs of accumulator bodies 131 by supplemental charging unit 1322.
In the present embodiment, detection control unit 1321 can detect the state of accumulator body 131, and carry out discharge and recharge operation to this accumulator body 131 under the coordinative role of supplemental charging unit 1322, thus storage battery entirety is made all to remain on desirable balance of voltage state.Storage battery so both can be made to keep active, the state of the balance of voltage can have been reached again, and be unlikely to occur to overcharge or the state of charge less, which thereby enhance the life-span of storage battery.
See Fig. 6, inverter circuit of the present invention is shown.This inverter circuit 140 comprises power tube driving chip, and this power tube driving chip is connected to microcontroller circuit (MCU/DSP), so that the pulse width modulating signal exported according to microcontroller circuit, drives corresponding power tube alternate conduction and shutoff.Concrete, described inverter circuit 140 comprises six power tube Q1 ~ Q6, and these six power tubes are divided into three groups, and every group power control to cross streams exports.
The concrete connected mode of each power tube is: the source electrode of power tube Q1, Q2, Q3 connects one end of DC power supply jointly, the drain electrode of power tube Q4, Q5, Q6 connects the other end of DC power supply jointly, the drain electrode of power tube Q1 is connected the U phase terminal for electrical switching device with the source electrode of power tube Q4, the drain electrode of power tube Q2 and the source electrode of power tube Q5 are powered and are changed the V phase terminal of dress, and the drain electrode of power tube Q3 and the source electrode of power tube Q6 are powered and changed the W phase terminal of dress; The grid of power tube Q1, Q2, Q3, Q4, Q5, Q6 connects an output of power tube driving chip respectively, and each input of this power tube driving chip controls by output pulse width conditioning signal PWM1, PWM2, PWM3, PWM4, PWM5, PWM6 Zhong mono-tunnel of microcontroller circuit respectively.These six power tube Q1 ~ Q6 source electrode and drain electrode between corresponding access diode D1 ~ D6.
During start, microprocessor produces corresponding 6 road pulse width modulating signals according to the rotation speed of fan of setting, i.e. drive singal PWM1 ~ PWM6; 6 power tube (MOSFET or IGBT) Q1 ~ Q6 of inverter 140 are driven by power tube driving chip; The alternate conduction of these power tubes and shutoff, produce three-phase modulations waveform, output voltage is adjustable, the three-phase alternating current of changeable frequency, inputs to for electrical switching device 300.
See Fig. 7, the electrical principle block diagram of control module of the present invention is shown.In the major loop of this control module 400, three phase mains input line L1, L2, L3 are connected to motor lines U1, V1, W1 of the three phase electric machine of blower fan 500 through major loop circuit breaker Q F1, A.C. contactor KM; In control loop, the input termination three phase mains input line L2 of control loop circuit breaker Q F2, L3, one of control loop circuit breaker Q F2 exports terminals of termination A.C. contactor KM coil, and another output of control loop circuit breaker Q F2 connects another terminals of A.C. contactor KM coil through inching button SB (1-3).Press inching button SB, A.C. contactor KM coil obtains electric adhesive, and the three-phase main contacts of A.C. contactor KM closes, and motor obtains electric operation, driven equipment work.The time pinning inching button SB is motor crawl duration of runs.Unclamp inching button SB, A.C. contactor KM coil blackout discharges, and the three-phase main contacts of A.C. contactor KM disconnects, and motor dead electricity shuts down, and driven equipment stops.
In order to make lightning current flow through safely in the present embodiment, all connected by shielded type cable between each circuit element, its terminals are screwed, and below further illustrate.
See Fig. 8, represent the earthing mode of shielded type cable 800.This shielded type cable 800 is made up of cable core and cable shield, and this cable shield wraps cable core to reduce electromagnetic interference.
Fig. 8 illustrates that shielded type cable 800 is supplying the mode of connection between electrical switching device 300 and control module 400, this shielded type cable 800 is near one end cable shield for electrical switching device 300 by the first earth element 600 ground connection, and shielded type cable 800 is near the direct ground connection of other end cable shield of control module 400.
In practical power systems, the length of shielded type cable 800 is generally greater than 20m, and the first earth element 600 therefore can be made to be connected to the position of distance feeder ear 4m ~ 6m.This first earth element 600 can be earth resistance, and particular type can be (certainly also can be other element) such as Zinc-oxide piezoresistors.The resistance of this earth resistance is equal with the equivalent resistance of the cable shield of shielded type cable 800, also can choose separately according to actual conditions.
Ground connection between blower fan 500 and control module 400 can refer to aforesaid way, that is: shielded type cable 800 is near one end cable shield of control module 400 by the second earth element 700 ground connection, and shielded type cable 800 is near the direct ground connection of other end cable shield of blower fan 500.
In this embodiment, between control module 400 and confession electrical switching device 300, the shielded type cable 800 between blower fan 500 and control module 400 have employed 2 grounding schemes, thus still maintains the good anti-jamming effectiveness of tradition 2 grounding schemes; Because shielded type cable 800 passes through earth element ground connection near one end cable shield for electrical switching device 300, be conducive to earth current or interference current limliting, the danger of screen is burnt when thus avoid earth-current or disturb excessive, also can reach electromagnetic compatibility effect preferably simultaneously, and negative antenna effect can not be caused.
See Fig. 9, represent the concrete structure of shielded type cable.Be provided with many heart yearns 805 in the external protection 801 of this shielded type cable 800, wherein every root heart yearn is enclosed with inner protective layer 803; Especially, in external protection, 801 layers are provided with cable shield 802, and the inner side of inner protective layer 803 is provided with heart yearn screen 804.
Because the heart yearn of shielded type cable 800 and cable self all arrange screen, the interference in interference between heart yearn and the external world can be suppressed, specifically: the heart yearn of shielded type cable all devises heart yearn screen, the electromagnetic radiation being conducive to suppressing to produce between heart yearn, electrostatic coupling and electromagnetic induction; Cable self arranges cable shield, is conducive to suppressing outside electromagnetic interference; These two aspects factor, eliminates the interference that dynamical system shielded type cable produces preferably, is conducive to the accuracy ensureing data.
Preferably, the two ends ground connection respectively of cable shield 802 and heart yearn screen 804, effectively to reduce interference source.More preferably, be make cable shield 802 and heart yearn screen 804 near the one end for electrical switching device 300 by the first earth element 600 ground connection, cable shield 802 and or heart yearn screen 804 near the direct ground connection in one end of blower fan 500.
See Figure 10 a ~ Figure 10 b, fan impeller structure of the present invention is shown.This draught fan impeller comprises left and right end plate 522 (only one end being shown in figure) and more blades 521, wherein: left and right end plate 522 is separately fixed in a rotating shaft (scheming not shown); All blades 521, they to be folded between left and right end plate 522 along the axial distribution of rotating shaft respectively.Especially, blade 521 longitudinally curves curve-like (preferably curving arc-shaped) perpendicular to the cross section edge of rotating shaft, and blade 521 thickness reduces to blade afterbody gradually from root of blade, be conducive to keeping good aerodynamic characteristic and good structural strength.This draught fan impeller improves blade construction, on specifically outside the leading edge of trailing edge outer surface and/or blade, blade small rut or blade sawtooth are set, the whirlpool produced during airflow passes trailing edge is smashed, thus effectively reduce flow resistance, reduce vibration & noise, improve fan efficiency.
Below be only the preferred embodiment of the present invention, it should be pointed out that above-mentioned preferred implementation should not be considered as limitation of the present invention, protection scope of the present invention should be as the criterion with claim limited range.For those skilled in the art, without departing from the spirit and scope of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. the inverter circuit of a sewage disposal device dynamical system, this sewage disposal device dynamical system comprises the photovoltaic power supply device connected by shielded type cable, mains power supply, for electrical switching device, control module and blower fan, this photovoltaic power supply device comprises photovoltaic cell, photovoltaic controller, storage battery and inverter circuit, photovoltaic controller has charging circuit, discharge circuit and control circuit, charging circuit is connected between photovoltaic cell and storage battery, discharge circuit is connected between storage battery and inverter circuit, control circuit connects charging circuit respectively, discharge circuit and storage battery, inverter circuit is connected to for electrical switching device, it is characterized in that, this inverter circuit comprises power tube driving chip and six power tubes: power tube driving chip is connected to microprocessor, to drive corresponding power tube alternate conduction and shutoff according to the pulse width modulating signal that microprocessor exports, six power tubes are divided into three groups, and every group power controls a cross streams and exports.
2. the inverter circuit of sewage disposal device dynamical system as claimed in claim 1, it is characterized in that, power tube is MOSFET or IGBT, corresponding access diode between the source electrode of each power tube and drain electrode.
3. the inverter circuit of sewage disposal device dynamical system as claimed in claim 2, is characterized in that, in the major loop of control module, three phase mains input line is connected to the motor lines of the three phase electric machine of blower fan through major loop circuit breaker, A.C. contactor; In the control loop of control module, the input termination two-phase power supply input line of control loop circuit breaker, one of control loop circuit breaker exports terminals of termination ac contactor coil, and another output of control loop circuit breaker connects another terminals of ac contactor coil through inching button.
4. the inverter circuit of sewage disposal device dynamical system as claimed in claim 3, it is characterized in that, be all connected by shielded type cable between electrical switching device with control module, between control module with blower fan, the screen of shielded type cable wherein is all connected to ground.
5. the inverter circuit of sewage disposal device dynamical system as claimed in claim 4, is characterized in that, be provided with many heart yearns in the external protection of shielded type cable, and wherein every root heart yearn is enclosed with inner protective layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510261398.9A CN104852460A (en) | 2015-05-20 | 2015-05-20 | Inversion circuit of sewage processing equipment power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510261398.9A CN104852460A (en) | 2015-05-20 | 2015-05-20 | Inversion circuit of sewage processing equipment power system |
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|---|---|
| CN104852460A true CN104852460A (en) | 2015-08-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510261398.9A Pending CN104852460A (en) | 2015-05-20 | 2015-05-20 | Inversion circuit of sewage processing equipment power system |
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| CN (1) | CN104852460A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160173A (en) * | 2016-08-25 | 2016-11-23 | 苏州苏宝新能源科技有限公司 | There are charging, control and the solar air-conditioner system of power lightning protection function |
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| CN203645398U (en) * | 2013-12-19 | 2014-06-11 | 湖北歌润新能源有限责任公司 | Regulation and control device capable of realizing complementation usage between solar power and commercial power |
| CN104092386A (en) * | 2014-07-22 | 2014-10-08 | 诸暨市沃思环保技术有限公司 | Inverter circuit of drive module of power supply system of buried sewage treatment equipment ventilator room |
| CN204597603U (en) * | 2015-05-20 | 2015-08-26 | 徐伯琴 | The inverter circuit of sewage disposal device dynamical system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6577513B1 (en) * | 2002-02-01 | 2003-06-10 | Digipower Manufacturing Inc. | Lighting equipment built-in on-line uninterruptible power system capable of outputting AC sinusoidal power from a single DC source |
| CN202617052U (en) * | 2012-03-31 | 2012-12-19 | 中冶南方工程技术有限公司 | Simple and practical squirrel-cage motor heavy load starting device |
| CN203645398U (en) * | 2013-12-19 | 2014-06-11 | 湖北歌润新能源有限责任公司 | Regulation and control device capable of realizing complementation usage between solar power and commercial power |
| CN104092386A (en) * | 2014-07-22 | 2014-10-08 | 诸暨市沃思环保技术有限公司 | Inverter circuit of drive module of power supply system of buried sewage treatment equipment ventilator room |
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| CN106160173A (en) * | 2016-08-25 | 2016-11-23 | 苏州苏宝新能源科技有限公司 | There are charging, control and the solar air-conditioner system of power lightning protection function |
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Application publication date: 20150819 |
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