CN201118519Y - Packet car frequency converter controller for steel making - Google Patents
Packet car frequency converter controller for steel making Download PDFInfo
- Publication number
- CN201118519Y CN201118519Y CNU2007200974131U CN200720097413U CN201118519Y CN 201118519 Y CN201118519 Y CN 201118519Y CN U2007200974131 U CNU2007200974131 U CN U2007200974131U CN 200720097413 U CN200720097413 U CN 200720097413U CN 201118519 Y CN201118519 Y CN 201118519Y
- Authority
- CN
- China
- Prior art keywords
- frequency converter
- frequency
- relay
- steel
- making
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model discloses a steelmaking chartered vehicle frequency conversion controller. A frequency converter 1 and a frequency converter 2 are arranged on the connected-in-parallel lines of a steelmaking large chartered vehicle control cabinet and a frequency conversion cabinet; the input ends and the output ends of the frequency converters 1, 2 are respectively connected with the normally closed contacts of a relay; the normally open contacts of the input relays of the frequency converters 1, 2 are connected in parallel and then connected with a three-phase power supply through a breaker; the normally open contacts of the output relays of the frequency converters 1, 2 are connected in parallel and then connected with a controlled motor; the frequency converters 1, 2 are alternatively chosen for work by a select switch SW. The frequency conversion controller has the advantages that the controlled motor is accelerated and decelerated more stably; the relay is self-locked, can not sends out instructions of going forwards or backwards and instructions of quick speed or low speed to the steelmaking large chartered vehicle motor; the chartered vehicle can automatically stop under the monitoring of the frequency converters when the parking stall is out of limit. The frequency conversion controller of the utility model can reduce the cost, extend the service life of the device, save energy and reduce consumption, and guarantee more convenient and safer operation.
Description
Technical field
The utility model relates to a kind of variable frequency control cabinet, particularly relates to the big hired car frequency-variable controller of a kind of steel-making.
Background technology
The motor ac variable speed technology is current economize on electricity, improve technological process to improve the quality of products and to improve environment, promote a kind of main means of technological progress.Frequency control is with its excellent speed governing and rise, braking ability, high efficiency, High Power Factor and power savings, the scope of application and other many advantages and be known as the most rising mode of speed regulation both at home and abroad widely.Wherein the high-voltage frequency conversion and speed-adjusting technology more and more widely be applied in all trades and professions, it not only can improve technology, prolong service life of equipment, increase work efficiency etc., the most important thing is that it can " save energy and reduce the cost ", this point is approved by users, and is paid close attention to deeply.Motor is the crucial powerful device of industrial enterprise's operation, and their power consumption occupies very big ratio in whole enterprise operation cost, therefore how reasonably to reduce the power consumption of motor and has listed in the routine work of many enterprises at present.Along with being extensive use of of low-voltage variable frequency technology, its remarkable power savings is admitted by vast user, but because power of motor is limited, though therefore power saving rate is higher, proportion is compared in the electricity charge of being saved with the total energy consumption of power plant be very little really.Therefore, if large-size machine can be carried out reducing energy consumption, whole enterprise will have the tangible range of decrease from power consumption rate.
Development along with large scale integrated circuit and Computer Control Technology, and the application of modern control theory, make the alternating electromotive force dragging system progressively possess the speed adjustable range of broad, high speed stabilizing scope, high steady speed precision, fast dynamic response and make good technical performance such as reversible operation, aspect speed adjusting performance, can drag and match in excellence or beauty with direct current power at four-quadrant.In ac speed control technology, frequency control has absolute predominance, and along with its speed adjusting performance and reliability constantly perfect, price constantly reduces, particularly frequency control power savings is obvious, and is easy to the implementation procedure automation, is subjected to the favor of industrial trade deeply.The method of ac variable frequency speed regulation is the most rising speed regulating method of asynchronous machine, continuous development along with power electronic technology, dependable performance, perfect, the low-cost frequency converter of coupling can constantly occur, and this technology can obtain more extensive, general application.
The shortcoming of prior art is at present: automation degree of equipment is low, useful life is low, inefficiency, the most important thing is that power consumption is big, is difficult for realizing Long-distance Control.
Summary of the invention
Technical problem to be solved in the utility model is, overcomes the prior art shortcoming, provides a kind of and realizes the synchronous coordination operation of motor through frequency converter timing, and it is accurate that the gait of march that guarantees truck changes with stop position, and realization scene and Long-distance Control.
The technical scheme that the utility model adopted is: a kind of steel-making hired car frequency-variable controller, steel-making is provided with frequency converter 1 and frequency converter 2 with the big hired car control cubicle circuit in parallel with frequency conversion tank, the input of described frequency converter 1 and frequency converter 2, output is connected to the normally-closed contact of relay respectively, be connected with three phase mains by circuit breaker after the normally opened contact parallel connection of the described frequency converter 1 and the input relay of frequency converter 2, be connected with controlled motor after the normally opened contact parallel connection of the described frequency converter 1 and the output relay of frequency converter 2, make frequency converter 1 or frequency converter 2 select one work by selector switch SW, the input cable of controlled motor passes through circuit breaker, instrument transformer connects the voltage dial gauge.
Described frequency converter is made up of A1, A2 and three circuit units of B4, control steel-making by relay and use moving backward and forward of big hired car for 8,9 in the A1 circuit unit, 14,15 by relay control steel-making with big hired car at a slow speed and operation fast, 16 is reduction point; 21,22 in the A2 circuit unit is the fault alarm point, and 24,25 is overtemperature alarm; 3,4 in the B4 circuit unit are connected with frequency meter by relay, and 5,6 are connected with ammeter by relay.
Minimum range between motor cable and other cable routing is 500mm.
The beneficial effects of the utility model are: compare when using the utility model and not adopting frequency converter, controlled motor acceleration, deceleration are more steady, because the self-locking action of relay, can not send the instruction of advancing and retreating simultaneously, pass to steel-making with the motor of hiring a car greatly with the low speed instruction fast, when transfinite in the parking stall, can under the monitoring of frequency converter, stop automatically yet, the utility model can reduce cost, the useful life of prolongation equipment, energy-saving and cost-reducing, make more convenient to operate, safety.
Description of drawings
Fig. 1 is a circuit control schematic diagram of the present utility model;
Fig. 2 is a circuit connection diagram of the present utility model;
Fig. 3 is the control loop winding diagram of frequency converter 1;
Fig. 4 is the control loop winding diagram of frequency converter 2;
Fig. 5 to Fig. 9 is the circuit connection diagram of control loop;
Figure 10, Figure 11 are the display circuit schematic diagrames;
Figure 12 is that frequency converter is selected circuit diagram.
Embodiment
Fig. 1 is the big hired car control device schematic diagram of steel-making, as shown in Figure 1, L1, L2, L3 are three phase mains.Q52.1 is a circuit breaker.G03.1, G03.2 are frequency converter 1 and frequency converter 2, and all may command steel-making is with big hired car operation for they, and K01.1, K01.3 are the auxiliary normally opened contacts that starts the frequency converter coil, K01.1 adhesive, then frequency converter 1 work; The K01.3 closure, then frequency converter 2 work.When No. 1 frequency converter goes wrong, switch to frequency converter 2 controls, be the using and the reserved.K01.4, K01.5 are the normally opened contact of steel-making with the big operation coil of hiring a car, and closed back is by the big hired car operation of Frequency Converter Control steel-making.Frequency converter output is by the voltage dial gauge instructed voltage of T11.1 voltage transformer by the P80.1 frequency converter, and Q16.01 is a circuit breaker.
Fig. 2 is a circuit connection diagram of the present utility model, as shown in Figure 2, Q16.1 is a circuit breaker, power supply is given transformer T05.1 in the back of closing, and the 220V power supply of being sent by T05.1 can offer Q16.3 can be standby with, Q16.4, the power supply of Q16.5 relay logic mains switch, Q08.1 cabinet blower fan/gate light mains switch, external alert and demonstration.Q16.2 is a circuit breaker, and the back T05.2 transformer that closes is charged, power supply is provided can for 24V relay and alarm unit.
Fig. 3 is the control loop winding diagram of frequency converter 1, Fig. 4 is the control loop winding diagram of frequency converter 2, as shown in Figure 3, Figure 4, and K15.43, K15.31, K15.33, K15.35, K15.37 are the normally opened contact of relay, the control steel-making operation of big hired car respectively, operation forward, operation backward, at a slow speed, fast operation.S09.1 is a reset button, when frequency converter failure, can press and resets.Can represent fault at 21,22 of frequency converter.Can represent excess temperature at 24,25.In the B4 module, available 3,4 connect a frequency meter, show the frequency converter operating frequency, and 5,6 connect an ammeter, show the frequency converter operating current.K10.2 in the frequency converter 1 is the normally opened contact of relay, when closed, ammeter, frequency meter can show electric current, the frequency of frequency converter 1, and the K10.3 in the frequency converter 2 is the normally opened contact of relay, when closed, ammeter, frequency meter can show electric current, the frequency of frequency converter 2.
Fig. 5 adopts the 24V DC power supply, and as shown in Figure 5, when the frequency converter fault-free, then 21,22 is close point, and coil K04.1 can get.When frequency converter 1 or frequency converter 2 were overheated, 24,25 of frequency converter was made war and can be disconnected, then K15.1 no longer electric, need press reset button, just can make and continue battle of K15.1 closure.
Fig. 6 adopts the 24V DC power supply, and as shown in Figure 6, K15.11 is the coil that moves forward, charged after, it is closed that K15.11 is made war, then steel-making can move forward with big hired car.K15.12 is the coil that moves backward, charged after, it is closed that K15.12 is made war, then steel-making can move backward with big hired car.K15.13 is the coil of slow running, charged after, it is closed that K15.13 is made war, but then steel-making with the slow running of big hired car.K15.14 is the quick coil of operation, charged after, K15.14 is made war closed, then makes steel and can move fast with big hired car.
Fig. 7 adopts the 220V power supply, and as shown in Figure 7, K10.1 suddenly stops coil, and when pressing scram button, K10.1 is no longer charged, then its all disconnections of making war, and steel-making is stopped with big the hired car.When condition all is fit to, promptly frequency converter is ready to, temperature just often, then the K15.29 coil is charged.
Fig. 8 adopts the 220V power supply, as shown in Figure 8, when the K15.29 coil is charged, normal make war closed, at this moment, steel-making with big hired car can be forward, backward, fast, slow running.K15.33, the close point of K15.31 forms self-locking, selects a ground and sends and advance and retreat instruction.K15.35, K15.37 also form self-locking, select a ground and send fast and instruction at a slow speed.
Fig. 9 adopts the 220V power supply, and as shown in Figure 9, after conditions permit, K15.29 is made war can be closed, and this moment, the K21.1 coil was charged, can be selected the relay that will start by SW.At this moment, K21.2 is charged, and by the time of delay that its control starts, after the startup, the K15.43 coil gets electric, and all make war closed, and steel-making just can be moved by Frequency Converter Control with big hired car, during operation, and the running of cabinet inner blower.
Figure 10, Figure 11 are the display circuit schematic diagrames, and as Figure 10, shown in Figure 11, the K15.29 coil is charged when driving is ready for, and the battle of K15.29 this moment also can be closed, then is ready for signal and produces, and the L4 signal lamp is bright.After the K15.43 coil was charged, K15.43 was made war closed, produced control response, and the L5 signal lamp is bright, the operation of expression motor.When pressing scram button, the K10.1 coil no longer electric, then anxious feedback signal of stopping produces.When frequency converter is ready to, the K04.1 closing of contact, then the L1 signal lamp is bright.When frequency converter is overheated, K15.1 meeting dead electricity, then the normally closed point of K15.1 recovers closed, and the L2 signal lamp is bright.
Figure 12 is that frequency converter is selected circuit diagram, and as shown in figure 12, SW is a selector switch, selects the frequency converter that will use.When selecting frequency converter 1, the K01.4 coil is charged, and close point disconnects, and self-locking has prevented misoperation, and frequency converter 1 and frequency converter 2 are selected a job.At this moment, the K10.2 coil is also charged, and K10.2 is made war closed, and then ammeter and frequency meter show electric current, the frequency of frequency converter 1.When SW selected frequency converter 2, self-locking had equally.This moment, the K10.3 coil got electricly, and K10.3 is made war closed, the K10.2 coil losing electricity, and the contact disconnects, electric current, the frequency of ammeter and frequency meter demonstration this moment frequency converter 2.
Because frequency converter inside is powerful electronic component, very easily is subjected to the influence of working temperature,, be preferably in below 40 ℃ so the peripheral physical environment of this frequency conversion tank is unsuitable overheated.According to drawing the outside inlet wire of cupboard is connected, note, line bits, especially metal fillings, short broken end and screw rod, nut that must not live wire drop in frequency converter inside.Cable between frequency conversion tank and motor should be lacked as far as possible, can reduce the direct-to-ground capacitance of cable like this, reduces the emission source that disturbs.Motor cable should be independent of other cable routing, and its minimum range is 500mm.Should avoid the parallel cabling of the long distance of motor cable and other cable simultaneously, could reduce frequency converter output voltage like this and change and the electromagnetic interference of generation fast.If control cable and feed cable intersect, should they be intersected by an angle of 90 degrees.The analog signals line relevant with frequency converter separates cabling with the major loop line, even also want so in control cubicle.It is tentative preferably not have material when operation is on probation, lacks the material operation again, last commencement of commercial operation, and the control truck advances, retreats, and quick, low cruise are with the fail safe of protection equipment and control cubicle.The parameter of frequency converter is a lot, has some mistakes that its work can not normally be moved, or damages instrument, so, but have only just setup parameter of professional.
The utility model frequency conversion tank is to form with big hired car control cubicle with steel-making to use.Operating personnel are as long as control is made steel with the hired car control cubicle, and execution is advanced, and retreats, and at a high speed, low speed gets final product.When frequency conversion tank is ready to, drive when being ready to, send advancement commands, forward Yun Hang coil can get electric, frequency converter work, control steel-making moves forward with big hired car; Send and retreat instruction, Yun Hang coil is charged backward, and Frequency Converter Control steel-making moves backward with big hired car.Around here, if operation instruction is fast then made steel and is moved fast with big hired car.Send the low speed instruction, then the big hired car low cruise of steel-making.Halt instruction is sent, and steel-making is out of service with big hired car.Adopt the operation of Frequency Converter Control steel-making with big hired car, compare when not adopting frequency converter, acceleration and deceleration are more steady, and because the self-locking action of relay, can not produce the situation that has the instruction of advancing and retreating to send simultaneously, can not have simultaneously fast with the low speed instruction yet and pass to steel-making with the motor of hiring a car greatly.If, also can under the monitoring of frequency converter, stop voluntarily because personnel's carelessness is transfinited the parking stall.
If frequency converter breaks down, having reports to the police occurs, and this moment, the operator should press reset button, carried out reset operation.By selector switch, select another frequency converter work.Operating personnel also need write down the electric current of frequency converter operation, and frequency values is with the operation under normal circumstances always of assurance equipment.
When being in an emergency, can not stop steel-making with big hired car by Frequency Converter Control, directly press scram button, to stop the machine operation.
The utility model can be realized many control modes, many defencive functions, and we are at control built-in frequency converter in the cabinet, air circuit, brake resistance, frequency meter, ammeter, relay, devices such as contactor.Adopt dual frequency converter, switch and use, accurately stable more, guaranteed the true(-)running of motor.It is reliable and stable that installing device adopts screw to guarantee.Be easy to the implementation procedure automation.
Claims (3)
1. a steel-making is with the hired car frequency-variable controller, it is characterized in that: steel-making is provided with frequency converter 1 and frequency converter 2 with the big hired car control cubicle circuit in parallel with frequency conversion tank, the input of described frequency converter 1 and frequency converter 2, output is connected to the normally-closed contact of relay respectively, be connected with three phase mains by circuit breaker after the normally opened contact parallel connection of the described frequency converter 1 and the input relay of frequency converter 2, be connected with controlled motor after the normally opened contact parallel connection of the described frequency converter 1 and the output relay of frequency converter 2, make frequency converter 1 or frequency converter 2 select one work by selector switch SW, the input cable of controlled motor passes through circuit breaker, instrument transformer connects the voltage dial gauge.
2. steel-making according to claim 1 hired car frequency-variable controller, it is characterized in that: described frequency converter is made up of A1, A2 and three circuit units of B4, control steel-making by relay and use moving backward and forward of big hired car for 8,9 in the A1 circuit unit, 14,15 by relay control steel-making with big hired car at a slow speed and operation fast, 16 is reduction point; 21,22 in the A2 circuit unit is the fault alarm point, and 24,25 is overtemperature alarm; 3,4 in the B4 circuit unit are connected with frequency meter by relay, and 5,6 are connected with ammeter by relay.
3. steel-making according to claim 1 hired car frequency-variable controller, it is characterized in that: the minimum range between motor cable and other cable routing is 500mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200974131U CN201118519Y (en) | 2007-11-01 | 2007-11-01 | Packet car frequency converter controller for steel making |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200974131U CN201118519Y (en) | 2007-11-01 | 2007-11-01 | Packet car frequency converter controller for steel making |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201118519Y true CN201118519Y (en) | 2008-09-17 |
Family
ID=39993113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200974131U Expired - Lifetime CN201118519Y (en) | 2007-11-01 | 2007-11-01 | Packet car frequency converter controller for steel making |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201118519Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107539323A (en) * | 2017-09-19 | 2018-01-05 | 中冶京诚（湘潭）重工设备有限公司 | A kind of blast furnace casting traction locomotive |
| CN108923691A (en) * | 2018-08-06 | 2018-11-30 | 浙江冠南能源科技有限公司 | Carried displacement air compressor and its operating method |
| CN109867206A (en) * | 2019-03-05 | 2019-06-11 | 邯郸钢铁集团有限责任公司 | Overhead traveling crane translation mechanism redundancy control apparatus and method |
-
2007
- 2007-11-01 CN CNU2007200974131U patent/CN201118519Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107539323A (en) * | 2017-09-19 | 2018-01-05 | 中冶京诚（湘潭）重工设备有限公司 | A kind of blast furnace casting traction locomotive |
| CN108923691A (en) * | 2018-08-06 | 2018-11-30 | 浙江冠南能源科技有限公司 | Carried displacement air compressor and its operating method |
| CN108923691B (en) * | 2018-08-06 | 2023-08-11 | 浙江冠南能源科技有限公司 | Volumetric air compressor and method of operating the same |
| CN109867206A (en) * | 2019-03-05 | 2019-06-11 | 邯郸钢铁集团有限责任公司 | Overhead traveling crane translation mechanism redundancy control apparatus and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101383590B (en) | Dragging device with high starting performance induction motor and frequency transformer cooperatively running | |
| CN201525701U (en) | Intelligent speed regulation and control device of crown block | |
| CN201118519Y (en) | Packet car frequency converter controller for steel making | |
| CN208142843U (en) | Auto-parallel power supply system based on diesel generating set | |
| CN205319992U (en) | Frequency conversion, power frequency unperturbed switched systems | |
| CN201118520Y (en) | Steel making frequency conversion case | |
| CN112151287B (en) | High-voltage circuit breaker | |
| CN103457277A (en) | 1140V special intelligent control cabinet | |
| CN203250653U (en) | Electric mechanism driven by servo motor | |
| CN202713224U (en) | Crane special-purpose motor stator pressure regulation speed regulation controller | |
| CN201976064U (en) | Variable-frequency energy-saving electrical control cabinet | |
| CN101817473A (en) | Frequency conversion system of rotor of alternating current mine hoist | |
| CN104803262A (en) | Intelligent construction hoist | |
| CN201539394U (en) | Energy-saving control system of air compressor | |
| CN104104289B (en) | IGCT reversible dc speed-adjusting and control system peculiar to vessel | |
| CN202205077U (en) | Self-adaptive PID (Proportion Integration Differentiation) control system applied to active front end | |
| CN204046482U (en) | A kind of novel alternating-current crane rotor thyristor speed setting controller | |
| CN206268048U (en) | Air compressor machine frequency conversion system with standby frequency converter | |
| CN210469157U (en) | Frequency conversion control system of oil pumping unit | |
| CN1904781A (en) | Electric control system for control box | |
| CN111313370A (en) | Power supply open-phase protection circuit of alternating current servo speed regulation system | |
| CN215010101U (en) | Intelligent drawer type pressure regulating starting device | |
| CN203466768U (en) | Phase advancer capable of automatically regulating voltage | |
| CN2690365Y (en) | Hoister positioning control circuit | |
| CN202475360U (en) | Adaptive controller for three-phase asynchronous motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TIANJIN AGV TECHNOLOGY DEVELOPMENT CO., LTD. Free format text: FORMER OWNER: TIANJIN ZHANFUSI TECHNOLOGY CO., LTD. Effective date: 20111110 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20111110 Address after: 300384 Tianjin Alex Hua Tian Nankai District Huayuan Industrial District Road No. 8 Haitai Information Plaza D block, room 612-2 Patentee after: TIANJIN AGV ROBOT MANUFACTURING CO., LTD. Address before: 300384 Tianjin City, Nankai District Huayuan Industrial District Torch Hotel, room 4026 Patentee before: Tianjin General Facility Service Science & Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080917 |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: TIANJIN AGV ROBOT MANUFACTURING CO., LTD. Document name: Notification of Expiration of Patent Right Duration |