CN206771871U - Air cooling blower fan control system - Google Patents
Air cooling blower fan control system Download PDFInfo
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- CN206771871U CN206771871U CN201720594674.8U CN201720594674U CN206771871U CN 206771871 U CN206771871 U CN 206771871U CN 201720594674 U CN201720594674 U CN 201720594674U CN 206771871 U CN206771871 U CN 206771871U
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- 238000001816 cooling Methods 0.000 title claims abstract description 30
- 230000005611 electricity Effects 0.000 claims description 20
- 230000036461 convulsion Effects 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000008450 motivation Effects 0.000 claims 1
- 238000010977 unit operation Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 5
- 230000002411 adverse Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000010349 pulsation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
It the utility model is related to power system air cooling blower fan control technology field, it is a kind of air cooling blower fan control system, it includes electrical source of power and control power supply, main circuit of the air blower electrically connects with electrical source of power, draught fan control circuit and control power electric connection, control power supply includes live wire and zero line, draught fan control circuit includes the change-over switch of a distant place/on the spot, enabled instruction transtation mission circuit and halt instruction transtation mission circuit, enabled instruction transtation mission circuit and control instruction transtation mission circuit are electrically connected with a distant place/on the spot between the distant place output end of change-over switch and zero line, enabled instruction transtation mission circuit and control instruction transtation mission circuit are in parallel.The utility model reasonable and compact in structure, it is easy to use, it is independent using electrical source of power and control power supply, electrical source of power and main circuit of the air blower is set voluntarily to start blower fan after failure reset in time rapidly, so as to make unit back pressuce rise is too many to threaten unit operation, time and manpower output are saved simultaneously, improve unit operation and production efficiency.
Description
Technical field
Power system air cooling blower fan control technology field is the utility model is related to, is a kind of air cooling blower fan control system.
Background technology
At present, in electricity generation system, Air-Cooling Blower Variable-Frequency device control power supply is derived from the downside of electrical source of power, i.e. air cooling blower fan master
Loop and control loop are powered by electrical source of power, therefore electrical source of power causes voltage pulsation to decline due to external cause
Or during tripping operation dead electricity, control power supply also can dead electricity, frequency converter enabled instruction be pulse, and enabling signal wants to keep only to lean on secondary
Loop relay is kept, if supply voltage as little as rated voltage less than 65% when, relay electric-loss, contact return, and startup refers to
Order disappears, and supply voltage recovers normally but because enabled instruction disappears, and frequency converter self-starting condition is unsatisfactory for, and frequency converter will be opened no longer
It is dynamic, and frequency converter is not provided with self-starting, when promptly being recurred after blower fan tripping operation, needs operations staff to frequency converter involution on the spot
Send out enabled instruction again afterwards, so as to increase manpower output, waste blower fan and start the time, efficiency is reduced, to unit safety
Operation has an impact.
The content of the invention
The utility model provides a kind of air cooling blower fan control system, overcomes the deficiency of above-mentioned prior art, and it can have
Effect solves the existing control power supply of existing air cooling blower fan control system and electrical source of power is not independent, after electrical source of power dead electricity, starts
The problem of instruction can not be kept.
The technical solution of the utility model is realized by following measures：A kind of air cooling blower fan control system, including
Main circuit of the air blower, draught fan control circuit, electrical source of power and control power supply, the main circuit of the air blower electrically connect with electrical source of power, wind
Machine control circuit electrically connects with control power electric connection, main circuit of the air blower with draught fan control circuit, and the control power supply includes fire
Line and zero line, the draught fan control circuit include a distant place/change-over switch, enabled instruction transtation mission circuit and halt instruction transmission on the spot
Circuit, the distant place input of change-over switch of a distant place/on the spot and input electrically connects with live wire on the spot, the conversion of a distant place/on the spot are opened
The distant place output end of pass electrically connects with zero line, enabled instruction transtation mission circuit and control instruction transtation mission circuit be electrically connected with a distant place/
On the spot between the distant place output end of change-over switch and zero line, enabled instruction transtation mission circuit and control instruction transtation mission circuit are in parallel.
Here is the further optimization and/or improvements to above-mentioned utility model technical scheme：
Above-mentioned enabled instruction transtation mission circuit may include DCS blower fan enabled instructions switch, fan swicth, blower fan starting relay
With blower fan slew relay, the distant place output end of change-over switch of a distant place/on the spot electrically connects with blower fan slew relay normally-closed contact,
Blower fan slew relay normally-closed contact is electrically connected with DCS blower fans enabled instruction switch, and DCS blower fan enabled instruction switches are opened with fan
Powered-down connection, fan swicth electrically connect with blower fan starting relay coil, and blower fan starting relay coil electrically connects with zero line, wind
Machine starting relay normally opened contact is connected in parallel on the both ends of DCS blower fans enabled instruction switch, and is electrically connected with main circuit of the air blower.
Above-mentioned halt instruction transtation mission circuit may include DCS blower fan halt instruction switches and blower fan slew relay, a distant place/just
The distant place output end of ground change-over switch electrically connects with DCS blower fans halt instruction switch, and DCS blower fan halt instruction switches stop with blower fan
Only relay coil electrically connects, and blower fan slew relay coil electrically connects with zero line.
Above-mentioned draught fan control circuit may also include distant place relay and indicator lamp, and the distant place for change-over switch of a distant place/on the spot is defeated
Go out end to electrically connect with distant place relay coil, distant place relay coil electrically connects with zero line, distant place relay normally open contact and wind
Owner's circuit electrically connects, the both ends of indicator lamp parallel connection relay coil in the distance.
Above-mentioned draught fan control circuit may also include blower fan circuit for reversing, and blower fan circuit for reversing includes DCS blower fan toggling commands
Switch, on the spot switch and blower fan reversion relay, the distant place output end of change-over switch of a distant place/on the spot are touched with distant place relay normally open
Point electrical connection, distant place relay normally open contact and DCS blower fans toggling command switch electrically connects, DCS blower fans toggling command switch and
Blower fan reversion relay coil electrical connection, blower fan reversion relay coil electrically connect with zero line, and the change-over switch of a distant place/on the spot is just
Ground output end electrically connects with the input switched on the spot, and the output end switched on the spot electrically connects with blower fan reversion relay coil,
Blower fan reversion relay normally open contact electrically connects with main circuit of the air blower.
Above-mentioned main circuit of the air blower may include the first input switch, input reactance device, frequency converter, output reactance device, second defeated
Go out switch and air cooling blower fan motor, electrical source of power electrically connects with the first input switch, the first input switch and input reactance device
Electrical connection, input reactance device electrically connect with frequency converter, and frequency converter electrically connects with output reactance device, output reactance device and the second output
Switch electrical connection, the second output switch and the electronic mechatronics of air cooling blower fan, the blower fan starting relay normally opened contact, blower fan
Reversion relay normally open contact and distant place relay normally open contact electrically connect with frequency converter.
It is anti-that above-mentioned draught fan control circuit may also include live jerk circuit, operation feedback circuit, fault feedback circuit, power supply
Current feed circuit and reversion feedback circuit, live jerk circuit, operation feedback circuit, fault feedback circuit, power feedback and anti-
The input for turning feedback circuit electrically connects with live wire, and live jerk circuit, operation feedback circuit, fault feedback circuit, power supply are anti-
The output end of current feed circuit and reversion feedback circuit electrically connects with zero line, and live jerk circuit electrically connects with frequency converter.
The utility model reasonable and compact in structure, it is easy to use, it is independent by electrical source of power and control power supply, in power electric
Source is because external cause causes voltage pulsation to decline or during tripping operation dead electricity, control power supply not dead electricity, and draught fan control circuit is still just
Often operation, enabled instruction transtation mission circuit are still kept and send enabled instruction, and the setting in main circuit of the air blower is changed to again
Return self-starting, therefore electrical source of power and main circuit of the air blower voluntarily can start blower fan after failure reset rapidly.Therefore the utility model profit
It is independent with electrical source of power and control power supply, electrical source of power and main circuit of the air blower is voluntarily started wind in time after failure reset rapidly
Machine, so as to make unit back pressuce rise is too many to threaten unit operation, while time and manpower output are saved, improve unit
Operation and production efficiency.
Brief description of the drawings
Accompanying drawing 1 is the electrical source of power electrical schematic of the best embodiment of the utility model.
Accompanying drawing 2 is the control power supply electrical schematic of the best embodiment of the utility model.
Accompanying drawing 3 is the electrical block diagram of the draught fan control circuit of the best embodiment of the utility model.
Accompanying drawing 4 is the electrical block diagram of the main circuit of the air blower of the best embodiment of the utility model.
Coding in accompanying drawing is respectively：L is live wire, and N is zero line, and S1 is a distant place/change-over switch, D1 are DCS blower fans on the spot
Enabled instruction switchs, and QF1 is fan swicth, and KA2 is blower fan starting relay coil, and KA2-1 is that blower fan starting relay is normally opened
Contact, KA3 are blower fan slew relay coil, and KA3-1 is blower fan slew relay normally opened contact, and D2 is that DCS blower fans stop referring to
Order switch, KA8 are distant place relay coil, and KA8-1 is distant place relay normally open contact, and G1 is indicator lamp, and D3 is that DCS blower fans are anti-
Turn command switch, S2 is switchs on the spot, and KA4 is that blower fan inverts relay coil, and KA3-1, which is that blower fan reversion relay is normally closed, to be touched
Point, DK1 are the first input switch, and ACL is input reactance device, and BP is frequency converter, and OCL is output reactance device, and DK2 is the second output
Switch, D is air cooling blower fan motor, and F is cabinet inner blower.
Embodiment
The utility model is not limited by following embodiments, can according to the technical solution of the utility model and actual conditions come
Determine specific embodiment.
The utility model is further described with reference to embodiment and accompanying drawing：
As shown in accompanying drawing 1,2,3,4, the air cooling blower fan control system, including main circuit of the air blower, draught fan control circuit, power
Power supply and control power supply, the main circuit of the air blower electrically connect with electrical source of power, draught fan control circuit and control power electric connection, wind
Owner's circuit electrically connects with draught fan control circuit, and the control power supply includes live wire L and zero line N, the draught fan control circuit bag
Include a distant place/on the spot change-over switch S1, enabled instruction transtation mission circuit and halt instruction transtation mission circuit, the change-over switch S1 of a distant place/on the spot
Distant place input and input electrically connects with live wire L on the spot, the change-over switch S1 of a distant place/on the spot distant place output end and zero line
N is electrically connected, and enabled instruction transtation mission circuit and control instruction transtation mission circuit are electrically connected with the change-over switch S1 of an a distant place/on the spot distant place
Between output end and zero line N, enabled instruction transtation mission circuit and control instruction transtation mission circuit are in parallel.
Here electrical source of power and control power supply be two independent power supplys, electrical source of power is existing known technology, can be three
Cross streams electricity, it is mainly used in as cabinet inner blower F and main circuit of the air blower power supply.It is existing known technology to control power supply, can be UPS electricity
Source, it is mainly used in providing 220V alternating currents for draught fan control circuit.Main circuit of the air blower is mainly used in reception draught fan control circuit and referred to
Order and the operating for carrying out air cooling blower fan.Draught fan control circuit be mainly used in fan main circuit send start or stop, invert or
Rotate forward instruction；The wherein change-over switch S1 of a distant place/on the spot is to be mainly used to carry out distant place end or cutting with regard to ground terminal for staff
Change, generally using distant place end；Enabled instruction transtation mission circuit is used for fan main circuit and sends blower fan enabled instruction；Stop
Instruction issue circuitry is used for fan main circuit and sends blower fan halt instruction.
During work, staff afield holds the change-over switch S1 of a distant place/on the spot switchings, if electrical source of power is due to outside former
When voltage pulsation declines or tripped dead electricity caused by, power supply not dead electricity is controlled, still normal operation, startup refer to draught fan control circuit
Make transtation mission circuit still keep and send enabled instruction, and the setting in main circuit of the air blower is changed to involution self-starting, thus it is dynamic
Power power supply and main circuit of the air blower voluntarily can start blower fan after failure reset rapidly.Therefore the utility model utilizes electrical source of power and control
Power supply processed is independent, electrical source of power and main circuit of the air blower is voluntarily started blower fan in time after failure reset rapidly, so as to make
Unit back pressuce rise is too many to threaten unit operation, while saves time and manpower output, improves unit operation and production effect
Rate.
Above-mentioned air cooling blower fan control system can be made further optimization and/or improvements according to being actually needed：
As shown in accompanying drawing 1,2,3,4, the enabled instruction transtation mission circuit includes DCS blower fans enabled instruction switch D1, fan
Switch QF1, blower fan starting relay and blower fan slew relay, the change-over switch S1 of a distant place/on the spot distant place output end and blower fan
Slew relay normally-closed contact KA3-1 is electrically connected, and blower fan slew relay normally-closed contact KA3-1 and DCS blower fan enabled instructions are opened
D1 electrical connections are closed, DCS blower fans enabled instruction switch D1 electrically connects with fan swicth QF1, and fan swicth QF1 starts relay with blower fan
Device coil KA2 is electrically connected, and blower fan starting relay coil KA2 electrically connects with zero line N, blower fan starting relay normally opened contact KA2-
1 is connected in parallel on DCS blower fans enabled instruction switch D1 both ends, and is electrically connected with main circuit of the air blower.
Enabled instruction transtation mission circuit when being blower fan following current or adverse current here, wherein fan swicth QF1 are wind in switch board
Fan motor is spaced apart, therefore is always in closure state.Enabled instruction transmission process is to be transformed into the change-over switch S1 of a distant place/on the spot far
Side, consistency operation computer send DCS blower fan enabled instructions, switch the enabled instruction of DCS blower fans by existing DCS control systems
D1 is closed, and blower fan starting relay coil KA2 is powered, blower fan starting relay normally opened contact KA2-1 closure self-locking circuits, aweather
Owner's circuit sends the instruction for starting blower fan, and in electrical source of power dead electricity, keeps starting the instruction of blower fan.
As shown in accompanying drawing 1,2,3,4, the halt instruction transtation mission circuit includes DCS blower fans halt instruction switch D2 and blower fan
Slew relay, the change-over switch S1 distant place output end of a distant place/on the spot electrically connect with DCS blower fans halt instruction switch D2, DCS wind
Machine halt instruction switch D2 electrically connects with blower fan slew relay coil KA3, and blower fan slew relay coil KA3 is electrically connected with zero line
Connect.
Halt instruction transtation mission circuit when being blower fan following current or adverse current here, halt instruction transmission process are consistency operation meter
Calculation machine sends DCS blower fan halt instructions, the halt instruction of DCS blower fans is switched D2 closures by existing DCS control systems, blower fan stops
Only relay coil KA3 is powered, and blower fan slew relay normally-closed contact KA3-1 disconnects, and blower fan starting relay coil KA2 loses
Electricity, blower fan starting relay normally opened contact KA2-1 are disconnected by closed, and the instruction for stopping blower fan, wind are sent to main circuit of the air blower
Machine is out of service.
As shown in accompanying drawing 1,2,3,4, the draught fan control circuit also includes distant place relay and indicator lamp G1, and a distant place/just
Ground change-over switch S1 distant place output end electrically connects with distant place relay coil KA8, distant place relay coil KA8 and zero line N electricity
Connection, distant place relay normally open contact KA8-1 electrically connects with main circuit of the air blower, indicator lamp G1 parallel connections relay coil in the distance
KA8 both ends.
Here when a distant place/change-over switch S1 is transformed into a distant place on the spot, distant place relay coil KA8 is powered, distant place relay
Device normally opened contact KA8-1 is closed, and to DCS feedback operations mode, position, indicator lamp G1 are bright in the distance；When the change-over switch of a distant place/on the spot
When S1 is transformed on the spot, distant place relay coil KA8 dead electricity, distant place relay normally open contact KA8-1 is not closed, and is fed back to DCS
Mode of operation does not work with regard to status, indicator lamp G1.
As shown in accompanying drawing 1,2,3,4, the draught fan control circuit also includes blower fan circuit for reversing, and blower fan circuit for reversing includes
DCS blower fans toggling command switch D3, S2 and blower fan reversion relay are switched on the spot, the change-over switch S1 distant place of a distant place/on the spot is defeated
Go out end to electrically connect with distant place relay normally open contact KA8-1, distant place relay normally open contact KA8-1 and DCS blower fan toggling commands
D3 electrical connections are switched, DCS blower fans toggling command switchs D3 and electrically connected with blower fan reversion relay coil KA4, blower fan reversion relay
Device coil KA4 electrically connects with zero line N, and a distant place/change-over switch S1 output end on the spot and the input for switching S2 on the spot are electric on the spot
Connection, the defeated place end for switching S2 on the spot electrically connect with blower fan reversion relay coil KA4, blower fan reversion relay normally open contact
KA4-1 electrically connects with main circuit of the air blower.
Blower fan circuit for reversing when being blower fan adverse current here；When blower fan needs to invert operation, the conversion of a distant place/on the spot is opened
Close S1 and be transformed into a distant place, consistency operation computer sends DCS blower fan toggling commands, makes DCS blower fans by existing DCS control systems
Toggling command switch D3 closures, then consistency operation computer transmission DCS blower fan enabled instructions, make existing DCS control systems
DCS blower fans enabled instruction switch D1 closures, distant place relay coil KA8 is powered, distant place relay normally open contact KA8-1 closures,
Blower fan reversion relay coil KA4 is powered, blower fan reversion relay normally open contact KA4-1 closures, sends and opens to main circuit of the air blower
The instruction of dynamic reversion.Here the S2 of switch on the spot in the distance/use when change-over switch S1 is transformed on the spot on the spot.
As shown in accompanying drawing 3,4, the main circuit of the air blower includes the first input switch DK1, input reactance device ACL, frequency converter
BP, output reactance device OCL, the second output switch DK2 and air cooling blower fan motor D, electrical source of power and the first input switch DK1 electricity
Connection, the first input switch DK1 electrically connect with input reactance device ACL, and input reactance device ACL electrically connects with frequency converter B P, frequency conversion
Device BP electrically connects with output reactance device OCL, and output reactance device OCL electrically connects with the second output switch DK2, the second output switch
DK2 electrically connects with air cooling blower fan motor D, the blower fan starting relay normally opened contact KA2-1, blower fan reversion relay normally open
Contact KA4-1 and distant place relay normally open contact KA8-1 electrically connect with frequency converter B P.Here frequency converter B P can be Siemens
430, input reactance device ACL and output reactance device can be Siemens 6SL3000, and the first input switch DK1 can be switch with knifeshaped fuse,
Second output switch chopper switch.
As shown in accompanying drawing 3,4, it is anti-that the draught fan control circuit also includes live jerk circuit, operation feedback circuit, failure
Current feed circuit, power feedback and reversion feedback circuit, live jerk circuit, operation feedback circuit, fault feedback circuit, power supply
The input of feedback circuit and reversion feedback circuit electrically connects with live wire L, and live jerk circuit, operation feedback circuit, failure are anti-
The output end of current feed circuit, power feedback and reversion feedback circuit electrically connects with zero line N, live jerk circuit and frequency converter B P
Electrical connection.Here live jerk circuit is used for fan main circuit transmission stop command；Run feedback circuit, failure feedback electricity
Road, power feedback and reversion feedback circuit are used to monitor the various running statuses in draught fan control circuit.
Above technical characteristic constitutes most preferred embodiment of the present utility model, and it has stronger adaptability and optimal implementation
Effect, can be according to the non-essential technical characteristic of increase and decrease be actually needed, to meet the needs of different situations.
Claims (9)
1. a kind of air cooling blower fan control system, it is characterised in that including main circuit of the air blower, draught fan control circuit, electrical source of power and control
Power supply processed, the main circuit of the air blower electrically connect with electrical source of power, draught fan control circuit and control power electric connection, main circuit of the air blower
Electrically connected with draught fan control circuit, the control power supply includes live wire and zero line, the draught fan control circuit including a distant place/on the spot
Change-over switch, enabled instruction transtation mission circuit and halt instruction transtation mission circuit, the distant place input of change-over switch of a distant place/on the spot and just
Ground input is electrically connected with live wire, and the distant place output end of change-over switch of a distant place/on the spot electrically connects with zero line, and enabled instruction is sent
Circuit and control instruction transtation mission circuit are electrically connected with a distant place/on the spot between the distant place output end of change-over switch and zero line, start
Instruction issue circuitry and control instruction transtation mission circuit are in parallel.
2. air cooling blower fan control system according to claim 1, it is characterised in that the enabled instruction transtation mission circuit includes
DCS blower fan enabled instructions switch, fan swicth, blower fan starting relay and blower fan slew relay, the change-over switch of a distant place/on the spot
Distant place output end electrically connected with blower fan slew relay normally-closed contact, blower fan slew relay normally-closed contact opens with DCS blower fans
Dynamic command switch electrical connection, DCS blower fan enabled instruction switches electrically connect with fan swicth, fan swicth and blower fan starting relay
Coil electrically connects, and blower fan starting relay coil electrically connects with zero line, and blower fan starting relay normally opened contact is connected in parallel on DCS blower fans
The both ends of enabled instruction switch, and electrically connected with main circuit of the air blower.
3. air cooling blower fan control system according to claim 1 or 2, it is characterised in that the halt instruction transtation mission circuit bag
Include DCS blower fan halt instruction switches and blower fan slew relay, a distant place/the on the spot distant place output end of change-over switch and DCS blower fans
Halt instruction switch electrical connection, DCS blower fan halt instruction switches electrically connect with blower fan slew relay coil, and blower fan stops relay
Device coil electrically connects with zero line.
4. air cooling blower fan control system according to claim 1 or 2, it is characterised in that the draught fan control circuit also includes
Distant place relay and indicator lamp, the distant place output end of change-over switch of a distant place/on the spot electrically connect with distant place relay coil, a distant place after
Electric apparatus coil electrically connects with zero line, and distant place relay normally open contact electrically connects with main circuit of the air blower, indicator lamp parallel connection in the distance after
The both ends of electric apparatus coil.
5. air cooling blower fan control system according to claim 3, it is characterised in that the draught fan control circuit also includes remote
Square relay and indicator lamp, the distant place output end of change-over switch of a distant place/on the spot electrically connect with distant place relay coil, distant place relay
Device coil electrically connects with zero line, and distant place relay normally open contact electrically connects with main circuit of the air blower, indicator lamp parallel connection relay in the distance
The both ends of device coil.
6. air cooling blower fan control system according to claim 4, it is characterised in that the draught fan control circuit also includes wind
Machine circuit for reversing, blower fan circuit for reversing include DCS blower fans toggling command switch, on the spot switch and blower fan reversion relay, a distant place/
The distant place output end of change-over switch electrically connects with distant place relay normally open contact on the spot, distant place relay normally open contact and DCS wind
Machine toggling command switch electrical connection, DCS blower fans toggling command switch with blower fan reversion relay coil electrically connects, blower fan invert after
Electric apparatus coil electrically connects with zero line, and the output end on the spot of change-over switch of a distant place/on the spot electrically connects with the input switched on the spot, wind
Machine reversion relay normally open contact electrically connects with main circuit of the air blower, the defeated place end switched on the spot and blower fan reversion relay coil electricity
Connection.
7. air cooling blower fan control system according to claim 5, it is characterised in that the draught fan control circuit also includes wind
Machine circuit for reversing, blower fan circuit for reversing include DCS blower fans toggling command switch, on the spot switch and blower fan reversion relay, a distant place/
The distant place output end of change-over switch electrically connects with distant place relay normally open contact on the spot, distant place relay normally open contact and DCS wind
Machine toggling command switch electrical connection, DCS blower fans toggling command switch with blower fan reversion relay coil electrically connects, blower fan invert after
Electric apparatus coil electrically connects with zero line, and the output end on the spot of change-over switch of a distant place/on the spot electrically connects with the input switched on the spot, just
The output end of ground switch electrically connects with blower fan reversion relay coil, blower fan reversion relay normally open contact and main circuit of the air blower electricity
Connection.
8. air cooling blower fan control system according to claim 7, it is characterised in that it is defeated that the main circuit of the air blower includes first
Enter switch, input reactance device, frequency converter, output reactance device, the second output switch and air cooling blower fan motor, electrical source of power and the
One input switch electrically connects, and the first input switch electrically connects with input reactance device, and input reactance device electrically connects with frequency converter, frequency conversion
Device electrically connects with output reactance device, and output reactance device electrically connects with the second output switch, the second output switch and air cooling blower fan electricity
Motivation electrically connects, the blower fan starting relay normally opened contact, blower fan reversion relay normally open contact and distant place relay normally open
Contact electrically connects with frequency converter.
9. air cooling blower fan control system according to claim 8, it is characterised in that the draught fan control circuit also includes existing
Field jerk circuit, operation feedback circuit, fault feedback circuit, power feedback and reversion feedback circuit, live jerk circuit,
The input for running feedback circuit, fault feedback circuit, power feedback and reversion feedback circuit electrically connects with live wire, scene
Jerk circuit, operation feedback circuit, fault feedback circuit, power feedback and the output end and zero line electricity that invert feedback circuit
Connection, live jerk circuit electrically connect with frequency converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720594674.8U CN206771871U (en) | 2017-05-25 | 2017-05-25 | Air cooling blower fan control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720594674.8U CN206771871U (en) | 2017-05-25 | 2017-05-25 | Air cooling blower fan control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206771871U true CN206771871U (en) | 2017-12-19 |
Family
ID=60639315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720594674.8U Expired - Fee Related CN206771871U (en) | 2017-05-25 | 2017-05-25 | Air cooling blower fan control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206771871U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113847681A (en) * | 2021-08-31 | 2021-12-28 | 青岛海尔空调电子有限公司 | Air conditioner and control method thereof |
| CN115557171A (en) * | 2022-10-31 | 2023-01-03 | 中核四0四有限公司 | Control system and method of spiral conveyor |
-
2017
- 2017-05-25 CN CN201720594674.8U patent/CN206771871U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113847681A (en) * | 2021-08-31 | 2021-12-28 | 青岛海尔空调电子有限公司 | Air conditioner and control method thereof |
| CN115557171A (en) * | 2022-10-31 | 2023-01-03 | 中核四0四有限公司 | Control system and method of spiral conveyor |
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Granted publication date: 20171219 Termination date: 20180525 |