CN209100319U - Firefighting fan control circuit and firefighting fan system - Google Patents
Firefighting fan control circuit and firefighting fan system Download PDFInfo
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- CN209100319U CN209100319U CN201821637539.8U CN201821637539U CN209100319U CN 209100319 U CN209100319 U CN 209100319U CN 201821637539 U CN201821637539 U CN 201821637539U CN 209100319 U CN209100319 U CN 209100319U
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- control circuit
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- firefighting fan
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Abstract
This application involves a kind of firefighting fan control circuit and firefighting fan systems, wherein firefighting fan control circuit includes power supply supervisory circuit, the first control loop on-off control circuit, the second control loop on-off control circuit and major loop on-off control circuit；One end of power supply supervisory circuit is separately connected one end of one end of the first control loop on-off control circuit, the second control loop on-off control circuit, and external firewire；The external ground wire of the other end of power supply supervisory circuit, and the other end of the first control loop on-off control circuit, the other end of the second control loop on-off control circuit are separately connected by major loop on-off control circuit, firefighting fan control circuit is monitored the main circuit power supply of firefighting fan and the power status of itself, and the signal reporting monitored is given to the fire alarm system connecting in use with firefighting fan control circuit.
Description
Technical field
This application involves control technology fields, more particularly to a kind of firefighting fan control circuit and firefighting fan system
System.
Background technique
Firefighting fan refer to can under 300 DEG C of (degree Celsius) hot conditions continuous operation 60 minutes or more or 100 DEG C of temperature
Continuous 20 hours or more the industrial fans not damaged under the conditions of degree.
The work of firefighting fan is controlled by fire fighting special-purpose fan control cabinet, and still, during realization, inventor has found to pass
At least there are the following problems in system technology: traditional fire fighting special-purpose fan control cabinet can not monitor motor main circuit power supply and
The power status of control loop.
Utility model content
Based on this, it is necessary to for traditional fire fighting special-purpose fan control cabinet can not monitor motor main circuit power supply and
The problem of power status of control loop, provides a kind of firefighting fan control circuit and firefighting fan system.
To achieve the goals above, the embodiment of the present application provides a kind of firefighting fan control circuit, firefighting fan control
Circuit includes power supply supervisory circuit, the first control loop on-off control circuit, the second control loop on-off control circuit and master
Circuit on-off control circuit；
One end of power supply supervisory circuit is separately connected one end of the first control loop on-off control circuit, the second control loop
One end of on-off control circuit, and external firewire；The external ground wire of the other end of power supply supervisory circuit, and pass through the control of major loop on-off
Circuit processed be separately connected the other end of the first control loop on-off control circuit, the second control loop on-off control circuit it is another
End.
Firefighting fan control circuit further includes short-circuit protection circuit in one of the embodiments,；Short-circuit protection circuit connects
Connect major loop on-off control circuit.
Short-circuit protection circuit includes breaker in one of the embodiments,；
Breaker connects major loop on-off control circuit.
Firefighting fan control circuit further includes overload protecting circuit in one of the embodiments,；
Overload protecting circuit connects major loop on-off control circuit.
Overload protecting circuit includes electrothermal relay in one of the embodiments,；
The coil of relay connects major loop on-off control circuit.
Power supply supervisory circuit includes the first intermediate relay in one of the embodiments,；Major loop on-off control circuit
Including contactor；First control loop on-off control circuit includes first switch；
One end of the coil of first intermediate relay is separately connected the stationary contact of first switch, the second control loop on-off control
One end of circuit processed, and external firewire；The external ground wire of the other end of the coil of first intermediate relay, and the line for passing through contactor
Circle is separately connected the other end of the movable contact of first switch, the second control loop on-off control circuit.
The second control loop on-off control circuit is including in the second intermediate relay, third in one of the embodiments,
Between relay, transformer and second switch；
The normal open switch of second intermediate relay is connected between the stationary contact of first switch and movable contact；Among third after
The normal open switch of electric appliance is connected between the stationary contact of first switch and movable contact；
The primary coil of transformer is connected to the other end of the stationary contact of first switch and the coil of the first intermediate relay
Between；One end of the secondary coil of transformer passes sequentially through the coil connection transformer of second switch and the second intermediate relay
The other end of secondary coil.
Firefighting fan control circuit further includes the first indicator light and the second indicator light in one of the embodiments,；
First indicator light is connected between one end and the other end of the first intermediate relay；One end of second indicator light passes through
The movable contact of the normal open switch connection first switch of contactor, the other end connect ground wire.
Firefighting fan control circuit further includes third switch in one of the embodiments,；
One end of the coil of first intermediate relay switchs external firewire by third.
On the other hand, the embodiment of the present application also provides a kind of firefighting fan system, firefighting fan system includes fire report
Alert system, firefighting fan and firefighting fan control circuit as described above；
Fire alarm system is separately connected the power supply supervisory circuit of firefighting fan control circuit, the second control loop on-off control
Circuit and major loop on-off control circuit processed；
The motor of firefighting fan passes through the external three phase mains of major loop on-off control circuit of firefighting fan control circuit.
A technical solution in above-mentioned technical proposal is had the following advantages and beneficial effects:
Use power supply supervisory circuit, the first control loop on-off control circuit, the second control loop on-off control circuit with
And major loop on-off control circuit constructs firefighting fan control circuit, wherein one end of power supply supervisory circuit is separately connected first
One end of control loop on-off control circuit, the second control loop on-off control circuit one end, and external firewire；Power Supply Monitoring
The external ground wire of the other end of circuit, and the first control loop on-off control circuit is separately connected by major loop on-off control circuit
The other end, the second control loop on-off control circuit the other end, in actual application, by firefighting fan control circuit
The motor and fire alarm system of firefighting fan are connected, thus, firefighting fan control circuit can be realized starts firefighting fan on the spot,
Fire system can realize long-range starting firefighting fan by firefighting fan control circuit, in addition, firefighting fan control circuit may be used also
Main circuit power supply and the power status of itself to firefighting fan are monitored, and the signal reporting monitored is being used
The fire alarm system being connect in the process with firefighting fan control circuit.
Detailed description of the invention
By being more particularly described for preferred embodiment of the present application shown in the drawings, the above and other mesh of the application
, feature and advantage will become more fully apparent.Identical appended drawing reference indicates identical part in all the attached drawings, and does not carve
Meaning draws attached drawing by actual size equal proportion scaling, it is preferred that emphasis is shows the purport of the application.
Fig. 1 is the structural schematic diagram of firefighting fan control circuit in one embodiment；
Fig. 2 is that the short-circuit protection circuit of firefighting fan control circuit and the structure of overload protecting circuit are shown in one embodiment
It is intended to；
Fig. 3 is the circuit diagram of the main circuit power supply of firefighting fan in one embodiment；
Fig. 4 is the circuit diagram of firefighting fan control circuit in one embodiment；
Fig. 5 is the structural schematic diagram of firefighting fan system in one embodiment.
Specific embodiment
The application in order to facilitate understanding is described more fully the application below with reference to relevant drawings.In attached drawing
Give the preferred embodiment of the application.But the application can realize in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is make it is more thorough and comprehensive to disclosure of this application.
It should be noted that it can be directly to separately when an element is considered as " connection " another element
One element and it is in combination be integrated, or may be simultaneously present centering elements.Term as used herein " first end ",
" second end " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
The main circuit power supply and control loop of motor can not be monitored in order to solve traditional fire fighting special-purpose fan control cabinet
Power status the problem of, in one embodiment, as shown in Figure 1, providing a kind of firefighting fan control circuit, including power supply
It is logical to monitor circuit 11, the first control loop on-off control circuit 13, the second control loop on-off control circuit 15 and major loop
Disconnected control circuit 17；
One end of power supply supervisory circuit 11 is separately connected one end of the first control loop on-off control circuit 13, the second control
One end of circuit on-off control circuit 15, and external firewire；The external ground wire of the other end of power supply supervisory circuit 11, and by leading back
Road on-off control circuit 17 is separately connected the other end of the first control loop on-off control circuit 13, the second control loop on-off control
The other end of circuit 15 processed.
It should be noted that firefighting fan control circuit connects fire-fighting wind when actually using firefighting fan control circuit
The main circuit power supply and fire alarm system of the motor of machine.
Wherein, fire alarm system (Fire Alarm System, abbreviation FAS system) is people to find as early as possible simultaneously
Be notified to fire, to take effective measure to control and put out the intensity of a fire in time, and be arranged between floors or other places one
Kind automatic fire-fighting facility.Fire alarm system usually by fire detector, local alarm controller and concentrated alarm controller, with
And the composition such as interlocking module.Ground wire and firewire are quoted from three phase mains.
In actual use, power supply supervisory circuit 11 is used to monitor the main current supply circuit and fire-fighting wind of firefighting fan
The power status of machine control circuit itself, specifically, the power supply when any road breaks down, power supply supervisory circuit 11 will be former
Barrier signal reporting gives fire warning system, and related personnel has been notified to repair failure in time.
First control loop on-off control circuit 13 is used to being connected and disconnecting major loop on-off control circuit 17 and firewire
Connection, that realizes control major loop on-off control circuit 17 obtains electric and power loss, to realize the starting on the spot of firefighting fan.
In actual use, the second control loop on-off control circuit 15 is controlled by fire alarm system, fire report
Alert system is connected and is disconnected the company of major loop on-off control circuit 17 and firewire by the second control loop on-off control circuit 15
It connects, that realizes control major loop on-off control circuit 17 obtains electric and power loss, to realize the long-range starting of firefighting fan.
Major loop on-off control circuit 17 is used to be connected and disconnect the main circuit power supply of firefighting fan, realizes firefighting fan
It starts and stops.
In a specific embodiment, as shown in Fig. 2, firefighting fan control circuit further includes short-circuit protection circuit 21；
Short-circuit protection circuit 21 connects major loop on-off control circuit.In actual use, short-circuit protection circuit 21, which is connected to, disappears
Between the motor and three phase mains of anti-blower, when occurring short trouble in circuit, short-circuit protection circuit 21 cuts off three phase mains
To the power supply of the motor of firefighting fan, play the role of short-circuit protection.In one example, as shown in figure 3, short-circuit protection circuit
21 include circuit breaker Q AO；Circuit breaker Q AO connection major loop on-off control circuit 17.
In a specific embodiment, as shown in Fig. 2, firefighting fan control circuit further includes overload protecting circuit 23；
Overload protecting circuit 23 connects major loop on-off control circuit 17.In actual use, overload protecting circuit 23 is connected to
Between the motor and three phase mains of firefighting fan, and fire alarm system is connected, when overloading in circuit, overload protection electricity
Road 23 cuts off three phase mains to the power supply of the motor of firefighting fan, and reports circuit overloads signal to fire alarm system, plays
The effect of overload protection.In one example, as shown in Figure 3 and Figure 4, overload protecting circuit 23 includes electrothermal relay BB；Relay
The coil of device BB connects major loop on-off control circuit 17.It should be noted that the normal open switch of electrothermal relay BB is connected to fire
Calamity alarm system, specifically, accessing fire alarm system by No. X1:11 and X1:12 connecting terminal.
In each embodiment of the application firefighting fan control circuit, using power supply supervisory circuit, the first control loop on-off control
Circuit, the second control loop on-off control circuit and major loop on-off control circuit processed construct firefighting fan control circuit,
In, one end of power supply supervisory circuit is separately connected one end of the first control loop on-off control circuit, the second control loop on-off
One end of control circuit, and external firewire；The external ground wire of the other end of power supply supervisory circuit, and pass through major loop on-off control electricity
Road is separately connected the other end of the other end of the first control loop on-off control circuit, the second control loop on-off control circuit,
In actual application, by the motor and fire alarm system of firefighting fan control circuit connection firefighting fan, thus, fire-fighting
Draught fan control circuit can be realized starts firefighting fan on the spot, and fire system can realize long-range starting by firefighting fan control circuit
Firefighting fan, in addition, firefighting fan control circuit can also main circuit power supply to firefighting fan and the power status of itself into
Row monitoring, and the signal reporting monitored is given to the fire alarm system connecting in use with firefighting fan control circuit
System.
In one embodiment, as shown in figure 4, power supply supervisory circuit 11 includes the first intermediate relay 1KA；Major loop is logical
Disconnected control circuit 17 includes contactor QAC；First control loop on-off control circuit 13 includes first switch SST；
One end of the coil of first intermediate relay 1KA is separately connected the stationary contact of first switch SST, the second control loop
One end of on-off control circuit 15, and external firewire；The external ground wire of the other end of the coil of first intermediate relay 1KA, and it is logical
Cross contactor QAC coil be separately connected the movable contact of first switch SST, the second control loop on-off control circuit 15 it is another
End.
Further, the second control loop on-off control circuit 15 includes the second intermediate relay 2KA, third centre relay
Device 3KA, transformer and second switch K；
The normal open switch of second intermediate relay 2KA is connected between the stationary contact and movable contact of first switch SST；Third
The normal open switch of intermediate relay 3KA is connected between the stationary contact and movable contact of first switch SST；
The primary coil of transformer is connected to the stationary contact of first switch SST and the coil of the first intermediate relay 1KA
Between the other end；The coil that one end of the secondary coil of transformer passes sequentially through second switch K and the second intermediate relay 2KA connects
Connect the other end of the secondary coil of transformer.
Further, firefighting fan control circuit further includes the first indicator light HG and the second indicator light HR；
First indicator light HG is connected between one end and the other end of the first intermediate relay 1KA；Second indicator light HR's
One end connects the movable contact of first switch SST by the normal open switch of contactor QAC, and the other end connects ground wire.
Further, firefighting fan control circuit further includes third switch QA；
One end of the coil of first intermediate relay 1KA passes through the external firewire of third switch QA.
Wherein, as shown in figure 4,1 column: L (firewire), N (ground wire), quoted from three phase mains, as firefighting fan control circuit
Control power supply；Third switch QA is the battery main switch of firefighting fan control circuit, for being connected and disconnecting firefighting fan control
The power supply of circuit processed；
2 column: the first indicator light is used to indicate firefighting fan control circuit and powers on, and in one embodiment, first refers to
Show that lamp is greensignal light (HG)；
3 column: the first intermediate relay (1KA), for monitoring the main circuit power supply of firefighting fan control circuit and motor
Power supply, when main circuit power supply or firefighting fan control circuit lose power supply, the coil losing electricity of the first intermediate relay is located at 12
Normal open switch (1KA) release of first intermediate relay of column, fire alarm system receive the letter of the first intermediate relay power loss
Number, and issuing power failure signal, it should be noted that the normal open switch of the first intermediate relay is connected to fire alarm system
System specifically accesses fire alarm system by No. X1:13 and X1:14 connecting terminal；
4 column: contactor (QAC), function are to turn on and disconnect the main circuit power supply of electric eliminating machine, when pressing the first of this column
When switching (for example, using self-locking type switch), the coil (QAC) of contactor must be electric, and the first normal open switch (QAC) of contactor closes
It closing, motor connects three phase mains, firefighting fan starting, while the second normal open switch (QAC) of the contactor of 5 column is connected, and second
Indicator light is bright, and the third normal open switch (QAC) of the contactor of 9 column is connected, and the signal that firefighting fan starts is returned directly to fire
Calamity alarm system, when pressing this first switch again, firefighting fan control circuit for electrically disconnected, the coil of contactor
(QAC) power loss, firefighting fan stop, it is to be noted that, the third normal open switch of contactor is connected to fire alarm system, tool
Body accesses fire alarm system by No. X1:5 and X1:7 connecting terminal；
5 column: the second indicator light, it acts as prompt blowers to be currently running, and in one embodiment, the second indicator light is green
Chrominance signal lamp (HG)；
6,7 column: 220V control power supply is become 24V power supply, to meet fire alarm system bus to voltage by transformer
Demand；
8 column: the second intermediate relay (2KA), the bus marco of the coil of the second intermediate relay by fire alarm system
The control of module, when fire occurs, fire alarm system control control normal open switch (K) is connected, the second intermediate relay
Coil (2KA) it is electric, 5 column the second intermediate relays normal open switch (2KA) connect, contactor (QAC) it is electric, blower fortune
Row；
10 column: third intermediate relay (3KA), by the control of fire alarm system, when fire occurs, fire alarm system
The linkage controller (manually and automatically) of system issues 24V Active control signal, and the coil (3KA) of third intermediate relay must be electric, and 5
The normal open switch (3KA) of the third intermediate relay of column is connected, and contactor (QAC) obtains electric, fan operation；It should be noted that
The coil of third intermediate relay is connected to fire alarm system, specifically, being accessed by No. X1:6 and X1:7 connecting terminal
Fire alarm system.
- X1 on terminal connection diagram is only terminal block number.
In each embodiment of the application firefighting fan control circuit, the power supply supervisory circuit of firefighting fan control circuit is completed
The monitoring of the power supply of main circuit power supply and firefighting fan control circuit to motor avoids that fire-fighting power supply monitoring system is in addition arranged
System, can save the cost of firefighting fan；And firefighting fan control circuit does not set automatic, manual and stop position change-over switch,
Replaced using a first switch (locking press button SST), is caused so as to avoid when fire since switch positions set mistake
The case where firefighting fan cannot start；The signal that firefighting fan control circuit accesses fire alarm system is two, is greatly saved
About firefighting fan control circuit, makes full use of the function of firefighting fan control circuit, firefighting fan control circuit is remotely controlled
Function processed was changed to manually control and be automatically controlled by manually controlling originally.
In one embodiment, as shown in figure 5, additionally providing a kind of firefighting fan system, firefighting fan system includes fire
Calamity alarm system 51, firefighting fan 53 and such as firefighting fan control circuit firefighting fan control circuit as described in the examples；
It is logical that fire alarm system 51 is separately connected the power supply supervisory circuit 11 of firefighting fan control circuit, the second control loop
Disconnected control circuit 15 and major loop on-off control circuit 17；
The motor of firefighting fan 53 passes through the external three-phase electricity of major loop on-off control circuit 17 of firefighting fan control circuit
Source 55.
In each embodiment of the application firefighting fan system, blower can be started on the spot by firefighting fan control circuit, it can also
Remotely start blower from fire alarm system by firefighting fan control circuit, provides number of ways for starting blower, guarantee
When fire occurs, firefighting fan can be started in time, the intensity of a fire is controlled, avoid bigger loss.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to the application the scope of the patents therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the concept of this application, various modifications and improvements can be made, these belong to the guarantor of the application
Protect range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of firefighting fan control circuit, which is characterized in that the firefighting fan control circuit includes power supply supervisory circuit,
One control loop on-off control circuit, the second control loop on-off control circuit and major loop on-off control circuit；
One end of the power supply supervisory circuit is separately connected one end of the first control loop on-off control circuit, described second
One end of control loop on-off control circuit, and external firewire；The external ground wire of the other end of the power supply supervisory circuit, and pass through
The major loop on-off control circuit is separately connected the other end of the first control loop on-off control circuit, second control
The other end of circuit on-off control circuit processed.
2. firefighting fan control circuit according to claim 1, which is characterized in that the firefighting fan control circuit is also wrapped
Include short-circuit protection circuit；The short-circuit protection circuit connects the major loop on-off control circuit.
3. firefighting fan control circuit according to claim 2, which is characterized in that the short-circuit protection circuit includes open circuit
Device；
The breaker connects the major loop on-off control circuit.
4. firefighting fan control circuit according to claim 1, which is characterized in that the firefighting fan control circuit is also wrapped
Include overload protecting circuit；
The overload protecting circuit connects the major loop on-off control circuit.
5. firefighting fan control circuit according to claim 4, which is characterized in that the overload protecting circuit include heat after
Electric appliance；
The coil of the relay connects the major loop on-off control circuit.
6. firefighting fan control circuit according to any one of claims 1 to 5, which is characterized in that the Power Supply Monitoring electricity
Road includes the first intermediate relay；The major loop on-off control circuit includes contactor；The first control loop on-off control
Circuit processed includes first switch；
One end of the coil of first intermediate relay is separately connected the stationary contact of the first switch, described second controls back
One end of road on-off control circuit, and the external firewire；The other end of the coil of first intermediate relay is external described
Ground wire, and the movable contact of the first switch, the second control loop on-off are separately connected by the coil of the contactor
The other end of control circuit.
7. firefighting fan control circuit according to claim 6, which is characterized in that the second control loop on-off control
Circuit includes the second intermediate relay, third intermediate relay, transformer and second switch；
The normal open switch of second intermediate relay is connected between the stationary contact of the first switch and the movable contact；Institute
The normal open switch for stating third intermediate relay is connected between the stationary contact of the first switch and the movable contact；
The primary coil of the transformer is connected to the stationary contact of the first switch and the coil of first intermediate relay
The other end between；One end of the secondary coil of the transformer passes sequentially through the second switch and the second intermediate relay
The coil of device connects the other end of the secondary coil of the transformer.
8. firefighting fan control circuit according to claim 7, which is characterized in that the firefighting fan control circuit is also wrapped
Include the first indicator light and the second indicator light；
First indicator light is connected between one end and the other end of first intermediate relay；Second indicator light
One end connects the movable contact of the first switch by the normal open switch of the contactor, and the other end connects the ground wire.
9. firefighting fan control circuit according to claim 8, which is characterized in that the firefighting fan control circuit is also wrapped
Include third switch；
One end of the coil of first intermediate relay switchs the external firewire by the third.
10. a kind of firefighting fan system, which is characterized in that the firefighting fan system includes fire alarm system, firefighting fan
And the described in any item firefighting fan control circuits of claim 1 to 9；
It is logical that the fire alarm system is separately connected the power supply supervisory circuit of the firefighting fan control circuit, the second control loop
Disconnected control circuit and major loop on-off control circuit；
The external three-phase electricity of major loop on-off control circuit that the motor of the firefighting fan passes through the firefighting fan control circuit
Source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821637539.8U CN209100319U (en) | 2018-10-09 | 2018-10-09 | Firefighting fan control circuit and firefighting fan system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821637539.8U CN209100319U (en) | 2018-10-09 | 2018-10-09 | Firefighting fan control circuit and firefighting fan system |
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| Publication Number | Publication Date |
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| CN209100319U true CN209100319U (en) | 2019-07-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116879665B (en) * | 2023-09-07 | 2023-11-14 | 应急管理部沈阳消防研究所 | Power on-off control device and method |
-
2018
- 2018-10-09 CN CN201821637539.8U patent/CN209100319U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116879665B (en) * | 2023-09-07 | 2023-11-14 | 应急管理部沈阳消防研究所 | Power on-off control device and method |
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