CN206023646U - Motor high voltage converter - Google Patents
Motor high voltage converter Download PDFInfo
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- CN206023646U CN206023646U CN201621010650.5U CN201621010650U CN206023646U CN 206023646 U CN206023646 U CN 206023646U CN 201621010650 U CN201621010650 U CN 201621010650U CN 206023646 U CN206023646 U CN 206023646U
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- circuit
- motor
- frequency changer
- contactor
- bypass circuit
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Abstract
The utility model discloses a kind of motor high voltage converter, including：Converter plant, bypass circuit, frequency changer circuit, breaker and motor, the bypass circuit and frequency changer circuit are provided with contactor, wherein described converter plant is connected with the frequency changer circuit, and converter plant is arranged in parallel with bypass circuit, and the motor is connected with breaker；And during the frequency changer circuit contactor closure, the bypass circuit contactor disconnects.The motor high voltage converter that the utility model is provided is while normal production needs are met, power output can be made to change with real time load, more saved electric power energy, improve energy-saving effect, and the service life of the relevant devices such as motor can be extended, abrasion and the noise of bearing is reduced.
Description
Technical field
The utility model more particularly to a kind of be applied to Production in Chemical Plant workshop feedstock transportation and production procedure in height
Medium-voltage Motor frequency converter.
Background technology
All the time, the structure of Chinese tradition type Chemical Manufacture enterprise, construction are limited by self-technique ability, produce car
Between the primary electricity using device such as high energy consumption equipment such as ingredient conveyor, aerator, mixer, supply-water pump, dredge pump, its output work
Rate can not change with the real time load of overall machine set system and change, can only be by the choosing of original baffle plate hand-manipulated or valve
Shelves which results in energy ezpenditure in greatly production being in operation adjusted and switch.Enter last century
After the eighties, the advanced converter technique in west is by domestic progressively import, digestion and absorption, and obtains in many industries and unit quickly
Promotion and application, have received good energy-saving effect and social repercussion.Traditional chemical enterprise high-voltage motor Frequency Conversion Modification is existing
For the ever-increasing green social energy conservation of social production power consumption is met on the basis of development in science and technology reduce discharging demand, its
To improving energy-saving effect, production cost is saved, the Social and economic benef@for improving chemical enterprise has highly important reality meaning
Justice.
Utility model content
For the deficiencies in the prior art, main purpose of the present utility model is to provide a kind of good energy-conserving effect, produces into
This is low, is conducive to the motor high voltage converter of equipment safety operation.
For realizing that aforementioned utility model purpose, the technical solution adopted in the utility model include：
On the one hand the utility model provides a kind of motor high voltage converter, including：Converter plant, bypass circuit, frequency conversion
Circuit, breaker and motor, the bypass circuit and frequency changer circuit are provided with contactor, wherein described converter plant and the change
Frequency circuit is connected, and converter plant is arranged in parallel with bypass circuit, and the motor is connected with breaker；And the frequency changer circuit connects
When tentaculum is closed, the bypass circuit contactor disconnects.
Further, the bypass circuit includes breaker, contactor and the motor being sequentially connected in series；The frequency changer circuit bag
Include converter plant and the contactor of converter plant both sides is set.
Further, the motor high voltage converter includes the first bypass circuit and the second bypass circuit, the first variable-frequency electric
Road and the second frequency changer circuit, the first breaker and the second breaker, the first motor and the second motor.
Further, first bypass circuit includes the first breaker, contactor and the first motor being sequentially connected in series；Institute
State second circuit device, contactor and the second motor that the second bypass circuit includes being sequentially connected in series；First frequency changer circuit and
One bypass circuit in parallel, and when first frequency changer circuit disconnects, the first bypass circuit contactor closure；Described
Two frequency changer circuits are in parallel with the second bypass circuit, when second frequency changer circuit disconnects, the second bypass circuit contactor
Closure.
Further, first frequency changer circuit is in parallel with the second frequency changer circuit.
On the other hand the utility model provides a kind of motor, including above-mentioned motor high voltage converter.
Compared with prior art, advantage of the present utility model includes：The motor high voltage converter that the utility model is provided exists
While meeting normal production needs, power output can be made to change with real time load, more save electric power energy, improve
Energy-saving effect, and the service life of the relevant devices such as motor can be extended, reduce abrasion and the noise of bearing.
Description of the drawings
Fig. 1 is the one-to-one motor high voltage frequency changer structure schematic diagram in one exemplary embodiments of the utility model；
Fig. 2 is the one drag two motor high voltage frequency changer structure schematic diagram in one exemplary embodiments of the utility model；
Description of reference numerals：1- motors；2- converter plants；3- breakers；4- contactors；5- contactors；6- bypass circuits
Contactor；The first motors of 11-；The second motors of 12-；21- converter plants；The first breakers of 31-；The second breakers of 32-；41- connects
Tentaculum；42- contactors；51- contactors；52- contactors；The first bypass contactors of 61-；The second bypass contactors of 62-.
Specific embodiment
In view of deficiency of the prior art, this case utility model people is able to propose this reality through studying for a long period of time and putting into practice in a large number
With new technical scheme.Accompanying drawing will be combined as follows to be further explained the technical scheme, its implementation process and principle etc.
Explanation.
Embodiment 1
Fig. 1 is referred to, in some specific embodiments, applies the aerator and mixer of motor high voltage converter to make
Driving style is one-to-one, and the high voltage converter includes frequency changer circuit and auto by pass circuit, the frequency changer circuit with
Auto by pass circuit in parallel is arranged, and the frequency changer circuit includes the motor 1 being sequentially connected in series, contactor 5, converter plant 2, contactor
4 and breaker 3, the auto by pass is electrically connected to converter plant two ends, and the bypass circuit is provided with contactor 6.
Embodiment 2
Fig. 2 is referred to, in some specific embodiments, is used with raw material transporter with motor high voltage converter
Driving style is one drag two, and the high voltage converter includes the first electric frequency circuit, the second frequency changer circuit, the first auto by pass circuit
With the second auto by pass circuit, first frequency changer circuit and the second auto by pass circuit in parallel, second frequency changer circuit and
Second frequency changer circuit is in parallel；First frequency changer circuit includes the first motor 11, contactor 51, the frequency conversion dress for being sequentially connected in series setting
21, contactor 41 and the first breaker 31 is put, the first bypass circuit is provided with the first bypass circuit contactor 61, is connected to institute
State the two ends of contactor 41 and contactor 51；Second frequency changer circuit is in parallel with the first frequency changer circuit, second variable-frequency electric
Road includes being sequentially connected in series the second motor 12 of setting, contactor 52, converter plant 21, contactor 42, the second breaker 32, described
Second bypass circuit is connected to 42 two ends of contactor 52 and contactor, and the second bypass circuit is provided with the second bypass circuit contactor
62.
After feedstock transportation motor is through Frequency Conversion Modification, its output quantity is while technological requirement is met, moreover it is possible to save a large amount of electricity
Can, concrete saving ratio is shown in following reckoning process.
Work characteristics according to feedstock transportation motor：The flow of feedstock transportation motor is directly proportional to its velocity of rotation pass
System：S2/S1=R2/R1——①.And the motor shaft power of feedstock transportation motor and velocity of rotation cube value also pass in direct ratio
System：P2/P1=(R2/R1)32., understand that its velocity of rotation is also proportional relation with rotational frequency by frequency converter operation principle：
R2/R1=F2/F1——③.Wherein：Formula 1. to formula 3. in, S be flow (m3/h)；R is rotating speed (r/s)；P is shaft power (W)；F
For frequency (Hz).Assume that frequency F declines 20% (50Hz drops to 40Hz), calculate in conjunction with above proportionate relationship as follows：S2=R2/
R1×S14., because：R2/R1=F2/F1, so S2=F2/F1×S15., in the case where F declines 20%：S2=S1
× 80% 6., P2=(R2/R1)3×P17., in the case where F declines 20%：P2=(80%) 3 × P1=P1×
51.2% 8..As can be seen here, when frequency declines 20%, shaft power accounts for 51.2%, so as to save 48.8%.The reckoning shows
Shown is power saving rate ideally, in practical work process, probably due to actual operating state is different, actual work
The effect meeting produced in work and above result of calculation have difference to a certain extent, but calculate that result is come from above-mentioned overall system
See, energy-saving effect is quite obvious, the necessity and importance of Frequency Conversion Modification is very prominent.
Ac high-voltage motor directly initiate of short duration during, often produce extremely violent electric current and torque shock ends
Power, this would generally produce 3 adverse consequences：1) Damper Winding and rotor cage modle winding bear high machinery in this course and answer
Power and thermal stress, the generation for causing cage bar damaged；2) stator winding insulation is caused to wear and tear, so as to cause stator winding insulation to hit
Wear；3) the powerful electric current during this can cause iron core to relax, so as to increase heating.Frequency converter can realize detent torque high and
Do not impact power simultaneously, be conducive to working life and the seeervice cycle for increasing motor, the impact to overall power utilization network
Relatively gentle, so that it is guaranteed that the safety of whole production system is normal running.
Must run always in production operation between aerator and mixer, for ensuring safety in production, aerator and stir
The machine of mixing should adopt one-to-one driving style and band bypass.So when frequency converter breaks down, power frequency can be switched in time.And it is former
Material conveying motor is the using and the reserved mostly, using one drag two driving style and to carry bypass be optimal selection.
It should be appreciated that above-described embodiment is only that technology design of the present utility model and feature are described, its object is to allow ripe
The personage for knowing technique will appreciate that content of the present utility model and implement according to this, can not be limited with this of the present utility model
Protection domain.All equivalence changes that is made according to the utility model Spirit Essence or modification, all should cover of the present utility model
Within protection domain.
Claims (6)
1. a kind of motor high voltage converter, it is characterised in that include：Converter plant, bypass circuit, frequency changer circuit, breaker and electricity
Machine, the bypass circuit and frequency changer circuit are provided with contactor, and wherein described converter plant is connected with the frequency changer circuit, frequency conversion
Device is arranged in parallel with bypass circuit, and the motor is connected with breaker；And during the frequency changer circuit contactor closure, described
Bypass circuit contactor disconnects.
2. motor high voltage converter according to claim 1, it is characterised in that：The bypass circuit includes being sequentially connected in series
Breaker, contactor and motor；The frequency changer circuit includes converter plant and arranges the contactor of converter plant both sides.
3. motor high voltage converter according to claim 1, it is characterised in that：The motor high voltage converter includes first
Bypass circuit and the second bypass circuit, the first frequency changer circuit and the second frequency changer circuit, the first breaker and the second breaker, first
Motor and the second motor.
4. motor high voltage converter according to claim 3, it is characterised in that：First bypass circuit includes going here and there successively
First breaker of connection, contactor and the first motor；Second bypass circuit includes second circuit device, the contact being sequentially connected in series
Device and the second motor；First frequency changer circuit is in parallel with the first bypass circuit, and when first frequency changer circuit disconnects,
The first bypass circuit contactor closure；Second frequency changer circuit is in parallel with the second bypass circuit, when second frequency conversion
When circuit disconnects, the second bypass circuit contactor closure.
5. motor high voltage converter according to claim 3, it is characterised in that：First frequency changer circuit and the second frequency conversion
Circuit in parallel.
6. a kind of motor, including the motor high voltage converter as any one of claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621010650.5U CN206023646U (en) | 2016-08-31 | 2016-08-31 | Motor high voltage converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621010650.5U CN206023646U (en) | 2016-08-31 | 2016-08-31 | Motor high voltage converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206023646U true CN206023646U (en) | 2017-03-15 |
Family
ID=58256429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621010650.5U Active CN206023646U (en) | 2016-08-31 | 2016-08-31 | Motor high voltage converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206023646U (en) |
-
2016
- 2016-08-31 CN CN201621010650.5U patent/CN206023646U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 215600 No.205, Southeast Avenue, Zhangjiagang Economic Development Zone (yangshe town), Suzhou City, Jiangsu Province Patentee after: Willy (Suzhou) Energy Technology Co.,Ltd. Address before: 215000 foreign student entrepreneurship Park, Zhangjiagang Economic Development Zone, Suzhou, Jiangsu Patentee before: SUZHOU HANFENG TECHNOLOGY DEVELOPMENT Co.,Ltd. |