CN206874521U - A kind of Double Speed Fan control system - Google Patents
A kind of Double Speed Fan control system Download PDFInfo
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- CN206874521U CN206874521U CN201720302987.1U CN201720302987U CN206874521U CN 206874521 U CN206874521 U CN 206874521U CN 201720302987 U CN201720302987 U CN 201720302987U CN 206874521 U CN206874521 U CN 206874521U
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Abstract
The utility model discloses a kind of Double Speed Fan control system, including near-earth control system and tele-control system, near-earth control system includes hand/automatic change-over SA1, hand/automatic change-over SA1 manual end difference connecting fan low speed controlling brancher and blower fan High-speed Control branch road；Hand/automatic change-over SA1 automatic end is connected to blower fan low speed controlling brancher by auxiliary reclay KA1 normally opened contact, hand/automatic change-over SA1 automatic end is connected to blower fan High-speed Control branch road by auxiliary reclay KA2 normally opened contact, realizes that the start and stop of blower fan low-speed high speed operate by auxiliary reclay KA1 and auxiliary reclay KA2 action；Starting switch and the connection of high/low speed change-over switch in PLC input and tele-control system, starting switch are used for the total enabling signal of input to PLC, and high/low speed change-over switch is used for the input high/low speed control signal to PLC.
Description
Technical field
The utility model belongs to electronic control technology field, and in particular to a kind of Double Speed Fan control system.
Background technology
In the closed laboratory or workshop of air draft is needed, in order to save the energy, double speed exhaust blower is employed.When someone exists
During office work, high speed air draft is opened；When indoor unmanned work, low velocity air exhaust is opened；When the laboratory or windowfree workshop are closed
When closing operation, then exhaust blower is closed.
Traditional Double Speed Fan switch board generally use two ways start and stop blower fan, when local button start and stop, second, passing through
Automatic control background system controls start and stop.Local start and stop need people's frequent start-stop, waste of manpower.Although background system control start and stop are just
Profit, but because cost is too high.
Utility model content
The purpose of this utility model is overcome the deficiencies in the prior art, there is provided a kind of Double Speed Fan control system.
The utility model is achieved through the following technical solutions：
A kind of Double Speed Fan control system, including near-earth control system and tele-control system,
Near-earth control system includes hand/automatic change-over SA1, and hand/automatic change-over SA1 manual end connects respectively
Blower fan low speed controlling brancher and blower fan High-speed Control branch road；
Blower fan low speed controlling brancher structure is：Hand/automatic change-over SA1 manual end is sequentially connected in series low speed stop button
SR1 normally-closed contacts, low rate start button SG1 normally opened contact, high-speed starting button SG2 normally-closed contact, A.C. contactor KM2
Normally closed auxiliary contact, electrothermal relay KH1 normally-closed contact, A.C. contactor KM1 coil contact, then connecting to neutral line；
Blower fan High-speed Control branch structure is：Hand/automatic change-over SA1 manual end is sequentially connected in series high speed stop button
SR2 normally-closed contacts, high-speed starting button SG2 normally opened contact, A.C. contactor KM1 normally closed auxiliary contact, electrothermal relay KH2
Normally-closed contact, A.C. contactor KM2 coil contact, then connecting to neutral line；And A.C. contactor KM3 coil contact with exchange
A.C. contactor KM2 coil contact both ends are attempted by after contactor KM2 normally opened auxiliary contact series connection；
Hand/automatic change-over SA1 automatic end is connected to blower fan low speed control by auxiliary reclay KA1 normally opened contact
Branch road processed, hand/automatic change-over SA1 automatic end are connected to blower fan by auxiliary reclay KA2 normally opened contact and controlled at a high speed
Branch road processed, realize that the start and stop of blower fan low-speed high speed operate by auxiliary reclay KA1 and auxiliary reclay KA2 action；In described
Between relay KA1 and auxiliary reclay KA2 coil be connected to PLC output end, in PLC input and tele-control system
Starting switch SA2 connected with high/low speed change-over switch SS, starting switch SA2 is used for the total enabling signal of input to PLC, control
PLC startup optimizations processed, high/low speed change-over switch SS are used for the input high/low speed control signal to PLC.
In the above-mentioned technical solutions, in near-earth control system, the normally opened auxiliary contact series connection of A.C. contactor KM1 is low
Fast start indicator lamp HG1, the normally opened auxiliary contact series high-speed start indicator lamp HG2 of A.C. contactor KM2；The exchange connects
Tentaculum KM1 normally closed auxiliary contacts series connection low speed stops indicator lamp HR1, and the A.C. contactor KM2 normally closed auxiliary contacts series connection is high
Speed stops indicator lamp HR2.
In the above-mentioned technical solutions, the normally opened auxiliary contact of A.C. contactor KM1 of near-earth control system are connected to long-range control
The long-range low rate start indicator lamp HHG1 of system processed, the normally opened auxiliary contact of A.C. contactor KM2 of near-earth control system are connected to
The remote high-speed start indicator lamp HHG2 of tele-control system.
In the above-mentioned technical solutions, low rate start indicator lamp HG1 and low rate start the button SG1 is integral type, described
High-speed starting indicator lamp HG2 and high-speed starting button SG2 is integral type.
In the above-mentioned technical solutions, PLC is also connected with HMI.
In the above-mentioned technical solutions, U1 of the A.C. contactor KM1 main contacts through overtemperature relay KH1 connection Double Speed Fans,
V1, W1, A.C. contactor KM2 main contacts U2, V2, W2 through overtemperature relay KH2 connection Double Speed Fans, the U1 of Double Speed Fan,
V1, W1 pass through A.C. contactor KM3 main contacts short circuits.
The advantages of the utility model and have the beneficial effect that：
Double Speed Fan control system of the present utility model has control and remote auto control function manually, easy to control
Practicality, wherein remote auto control pass through the software programming to PLC (programmable controller), it is possible to achieve to Double Speed Fan from
High low speed handoff functionality is moved, and the duration of runs can be set, is finally reached the purpose of energy-conservation.
Brief description of the drawings
Fig. 1 is electric-control system circuit diagram of the present utility model.
Fig. 2 is the main circuit connection figure of A.C. contactor main contacts and Double Speed Fan.
Embodiment
The technical solution of the utility model is further illustrated with reference to specific embodiment.
A kind of Double Speed Fan control system involved by the utility model, including near-earth control system and remote control system
System.
Near-earth control system includes hand/automatic change-over SA1, and hand/automatic change-over SA1 manual end connects respectively
Blower fan low speed controlling brancher and blower fan High-speed Control branch road
Blower fan low speed controlling brancher structure is：Hand/automatic change-over SA1 manual end is sequentially connected in series low speed stop button
SR1 normally-closed contacts, low rate start button SG1 normally opened contact, high-speed starting button SG2 normally-closed contact, A.C. contactor KM2
Normally closed auxiliary contact, electrothermal relay KH1 normally-closed contact, A.C. contactor KM1 coil contact, then connecting to neutral line；
Blower fan High-speed Control branch structure is：Hand/automatic change-over SA1 manual end is sequentially connected in series high speed stop button
SR2 normally-closed contacts, high-speed starting button SG2 normally opened contact, A.C. contactor KM1 normally closed auxiliary contact, electrothermal relay KH2
Normally-closed contact, A.C. contactor KM2 coil contact, then connecting to neutral line；And A.C. contactor KM3 coil contact with exchange
A.C. contactor KM2 coil contact both ends are attempted by after contactor KM2 normally opened auxiliary contact series connection；
Hand/automatic change-over SA1 automatic end is connected to blower fan low speed control by auxiliary reclay KA1 normally opened contact
Branch road processed, hand/automatic change-over SA1 automatic end are connected to blower fan by auxiliary reclay KA2 normally opened contact and controlled at a high speed
Branch road processed；The coil of the auxiliary reclay KA1 and auxiliary reclay KA2 are connected to PLC output end, PLC input with
Starting switch SA2 in tele-control system connects with high/low speed change-over switch SS, and PLC is according to the switch of tele-control system
SA2 and SS input signal control auxiliary reclay KA1 and auxiliary reclay KA2 actions, and then control blower fan low-speed high speed fortune
Turn that (starting switch SA2 is used for the total enabling signal of input to PLC, control PLC startup optimization, and high/low speed change-over switch SS is used for
Input high/low speed control signal to PLC, when high/low speed change-over switch SS is closed, PLC makes auxiliary reclay KA1 coils obtain
Electricity, the conducting of blower fan low speed controlling brancher, blower fan low-speed running；When high/low speed change-over switch SS disconnects, relay among PLC orders
Device KA2 coils obtain electric, and the conducting of blower fan High-speed Control branch road, blower fan runs at high speed；And it can be set by the programming inside PLC
It is the time of blower fan low-speed high speed operating, then automatic to close).
In near-earth control system, the normally opened auxiliary contact series connection low rate start indicator lamp HG1 of A.C. contactor KM1,
The normally opened auxiliary contact series high-speed start indicator lamp HG2 of A.C. contactor KM2；The normally closed auxiliary of A.C. contactor KM1
Contact series low speed stops indicator lamp HR1, and the A.C. contactor KM2 normally closed auxiliary contacts series high-speed stops indicator lamp HR2；
Preferably：Low rate start indicator lamp HG1 and low rate start the button SG1 is integral type (i.e. from the button of tape light),
High-speed starting indicator lamp HG2 and high-speed starting the button SG2 is integral type.
The long-range low speed that the normally opened auxiliary contact of A.C. contactor KM1 of near-earth control system are connected to tele-control system opens
Dynamic indicator lamp HHG1, the normally opened auxiliary contact of A.C. contactor KM2 of near-earth control system are connected to the long-range of tele-control system
High-speed starting indicator lamp HHG2.
PLC is also connected with HMI (liquid crystal human interface devices), to be monitored to the running status of all blower fans, with
The various states such as the operation of blower fan, failure, high speed, low speed are grasped at any time.
Fig. 2 is the main circuit connection figure of A.C. contactor main contacts and Double Speed Fan, is such as schemed, and A.C. contactor KM1 master touches
Point U1, V1, W1 through overtemperature relay KH1 connection Double Speed Fans, A.C. contactor KM2 main contacts connect through overtemperature relay KH2
U2, V2, W2 of Double Speed Fan are met, U1, V1, W1 of Double Speed Fan pass through A.C. contactor KM3 main contacts short circuits.
In use, when hand/automatic change-over SA1 is transferred to manual, SG1 is pressed, A.C. contactor KM1 coils obtain electric, friendship
Contactor KM1 main contacts closure is flowed, blower fan low-speed running, now low rate start indicator lamp HG1 is lighted, while long-range low rate start
Indicator lamp HHG1 is also synchronously lighted；Press SG2, A.C. contactor KM2 and KM3 coil obtain it is electric, A.C. contactor KM2's and KM3
Main contacts is closed, and blower fan is run at high speed, and now high-speed starting indicator lamp HG2 is lighted, while remote high-speed start indicator lamp HHG2
Also synchronously light；
After hand/automatic change-over SA1 is transferred to automatically, by PLC according to the defeated of the switch SA2 and SS of tele-control system
Enter signal control auxiliary reclay KA1 and auxiliary reclay KA2 actions, and then control the speed operating of blower fan low-speed high, and pass through
Programming inside PLC can set the time of blower fan low-speed high speed operating, then automatic to close.
Exemplary description is done to the utility model above, it should explanation, do not departing from core of the present utility model
In the case of the heart, any simple deformation, modification or other skilled in the art can not spend creative work etc.
The scope of protection of the utility model is each fallen within replacing.
Claims (6)
- A kind of 1. Double Speed Fan control system, it is characterised in that：Including near-earth control system and tele-control system,Near-earth control system includes hand/automatic change-over SA1, hand/automatic change-over SA1 manual end difference connecting fan Low speed controlling brancher and blower fan High-speed Control branch road；Blower fan low speed controlling brancher structure is：Hand/automatic change-over SA1 manual end is sequentially connected in series low speed stop button SR1 Normally-closed contact, low rate start button SG1 normally opened contact, high-speed starting button SG2 normally-closed contact, A.C. contactor KM2 Normally closed auxiliary contact, electrothermal relay KH1 normally-closed contact, A.C. contactor KM1 coil contact, then connecting to neutral line；Blower fan High-speed Control branch structure is：Hand/automatic change-over SA1 manual end is sequentially connected in series high speed stop button SR2 Normally-closed contact, high-speed starting button SG2 normally opened contact, A.C. contactor KM1 normally closed auxiliary contact, electrothermal relay KH2 The coil contact of normally-closed contact, A.C. contactor KM2, then connecting to neutral line；And A.C. contactor KM3 coil contact is connect with exchanging A.C. contactor KM2 coil contact both ends are attempted by after tentaculum KM2 normally opened auxiliary contact series connection；Hand/automatic change-over SA1 automatic end is connected to blower fan low speed control branch by auxiliary reclay KA1 normally opened contact Road, hand/automatic change-over SA1 automatic end are connected to blower fan High-speed Control branch by auxiliary reclay KA2 normally opened contact Road, realize that the start and stop of blower fan low-speed high speed operate by auxiliary reclay KA1 and auxiliary reclay KA2 action；The centre after Electrical equipment KA1 coil and auxiliary reclay KA2 coil are connected to PLC output end, PLC input and tele-control system In starting switch SA2 connected with high/low speed change-over switch SS, starting switch SA2 is used for the total enabling signal of input to PLC, Control PLC startup optimization, high/low speed change-over switch SS are used for the input high/low speed control signal to PLC.
- 2. Double Speed Fan control system according to claim 1, it is characterised in that：In near-earth control system, the friendship Flow the normally opened auxiliary contact series connection low rate start indicator lamp HG1 of contactor KM1, the normally opened auxiliary contact strings of A.C. contactor KM2 Join high-speed starting indicator lamp HG2；The A.C. contactor KM1 normally closed auxiliary contacts series connection low speed stops indicator lamp HR1, the friendship Flow contactor KM2 normally closed auxiliary contacts series high-speed and stop indicator lamp HR2.
- 3. Double Speed Fan control system according to claim 1, it is characterised in that：The A.C. contactor of near-earth control system The normally opened auxiliary contact of KM1 are connected to the long-range low rate start indicator lamp HHG1 of tele-control system, the exchange of near-earth control system The normally opened auxiliary contact of contactor KM2 are connected to the remote high-speed start indicator lamp HHG2 of tele-control system.
- 4. Double Speed Fan control system according to claim 1, it is characterised in that：The low rate start indicator lamp HG1 and Low rate start button SG1 is integral type, and high-speed starting indicator lamp HG2 and high-speed starting the button SG2 is integral type.
- 5. Double Speed Fan control system according to claim 1, it is characterised in that：PLC is also connected with HMI.
- 6. Double Speed Fan control system according to claim 1, it is characterised in that：A.C. contactor KM1 main contacts passes through U1, V1, W1 of electrothermal relay KH1 connection Double Speed Fans, A.C. contactor KM2 main contacts is through overtemperature relay KH2 connection double speeds U2, V2, W2 of blower fan, U1, V1, W1 of Double Speed Fan pass through A.C. contactor KM3 main contacts short circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720302987.1U CN206874521U (en) | 2017-03-24 | 2017-03-24 | A kind of Double Speed Fan control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720302987.1U CN206874521U (en) | 2017-03-24 | 2017-03-24 | A kind of Double Speed Fan control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206874521U true CN206874521U (en) | 2018-01-12 |
Family
ID=61327333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720302987.1U Expired - Fee Related CN206874521U (en) | 2017-03-24 | 2017-03-24 | A kind of Double Speed Fan control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206874521U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787533A (en) * | 2019-03-05 | 2019-05-21 | 中石化宁波工程有限公司 | A kind of operation control system of two-way double speed motor |
| CN110630549A (en) * | 2019-09-05 | 2019-12-31 | 北方华锦化学工业股份有限公司 | Control method of double-speed fan heating control device of circulating water cooling tower |
| CN110737235B (en) * | 2019-11-01 | 2022-10-21 | 中核核电运行管理有限公司 | Double-speed motor control device and method |
-
2017
- 2017-03-24 CN CN201720302987.1U patent/CN206874521U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787533A (en) * | 2019-03-05 | 2019-05-21 | 中石化宁波工程有限公司 | A kind of operation control system of two-way double speed motor |
| CN109787533B (en) * | 2019-03-05 | 2024-08-06 | 中石化宁波工程有限公司 | Operation control system of bidirectional double-speed motor |
| CN110630549A (en) * | 2019-09-05 | 2019-12-31 | 北方华锦化学工业股份有限公司 | Control method of double-speed fan heating control device of circulating water cooling tower |
| CN110737235B (en) * | 2019-11-01 | 2022-10-21 | 中核核电运行管理有限公司 | Double-speed motor control device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180112 Termination date: 20210324 |
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| CF01 | Termination of patent right due to non-payment of annual fee |