CN2324681Y - Fire-extingurishing electric control cabinet - Google Patents
Fire-extingurishing electric control cabinet Download PDFInfo
- Publication number
- CN2324681Y CN2324681Y CN 96230805 CN96230805U CN2324681Y CN 2324681 Y CN2324681 Y CN 2324681Y CN 96230805 CN96230805 CN 96230805 CN 96230805 U CN96230805 U CN 96230805U CN 2324681 Y CN2324681 Y CN 2324681Y
- Authority
- CN
- China
- Prior art keywords
- control
- fire
- cabinet
- controller
- pump
- 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 - Fee Related
Links
Images
Landscapes
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model provides a fire protecting electric controlling cabinet used for control the start and the stop of fire protecting pumps. The fire protecting electric controlling cabinet comprises a cabinet body provided with an operating panel and a cabinet door, a wiring terminal group arranged in the cabinet body, a relay group, a controller, and an air switch. The utility model is characterized in that the controller is a programmable controller whose input terminal is connected with the control signal of the panel and the communicating terminal of a central control room respectively and output terminal is connected with a contactor. The utility model also comprises an intelligent motor controller whose input terminal is connected with the output terminal of the programmable controller and output terminal is connected with a motor, and according to the commands of the programmable controller, the contactor controls the motor of a pump at right time to be connected with an electric network after the motor achieves a full speed.
Description
The utility model relates to the electric machine speed regulation technical field, relates in particular to a kind of be used to the control start and stop of the motor that drives fire pump work and the fire-fighting electrical control cabinet of speed governing.
There are following two kinds of situations in fire-fighting electrical control cabinet commonly used at present:
One. controller partly adopts relay control circuit.Its controlled function is finished by the relay assembly loop, and there is following defective in it: one is bulky, the wiring complexity, and response speed is slow, and vibration is big with AC noise, and damage and reliability are lower easily; It is two if will increase or when changing logic function, need rewiring and debugging, and quantities greatly and very inconvenient; Its three this relay control circuit can't be realized senior functions such as self check.
Two. the general method that directly starts that adopts of controlled fire pump in the Fire Control Cabinet.Yet the direct startup of motor, its starting current excessive (be about rated current 7 times) make motor windings bear very big electromagnetic force and generate heat, and the situation of long more motor windings heating start-up time is serious more, make the insulation accelerated aging of motor, reduction of service life; Simultaneously, starting current is excessive, can cause the fluctuation of line voltage, influences the normal operation of other electric equipment in the electrical network.In order to improve the startup method of motor, people have adopted Y-△ and autotransformer reduced-voltage starting method, and these methods have obviously been improved the startup effect, but have two shortcomings, one starts with operation and will switch with the contactor that has contact switch, makes it to have influenced its reliability and useful life; Its two function is few, and promptly each startup method has only a kind of starting characteristic, can not satisfy the needs of the different starting characteristics of multiple occasion motor, and it is poor to make it versatility.The Fire Control Cabinet that also has adopts frequency converter to start fire pump, because frequency converter costs an arm and a leg, therefore is difficult to promote.
The purpose of this utility model provides a kind of improved fire-fighting electrical control cabinet, and it can improve the controlled function of system and the reliability that fire pump starts, and eliminates the interference of startup fire pump to electrical network.
The purpose of this utility model is achieved in that a kind of fire-fighting electrical control cabinet that is used to control the start and stop of different occasion fire pump, comprise: a rectangular cabinet, the cabinet front upper is one to which is provided with the guidance panel of each control assembly, and the bottom is one to have the cabinet door of handle; Be provided with in cabinet: be used for the binding post group of signal handing-over, it is made up of with the major loop binding post signal terminal; Be used to realize the relay group controlled, it is made up of thermal relay and contactor and auxiliary relay, can control operation and the controller of realizing each function; Be used for all air switches of being communicated with electrical network; Be characterized in, described controller adopts Programmable Logic Controller, one group input is connected with each control signal on the guidance panel, another group input is connected with the communicator of central control room, joining in order to control the contactor that fire pump links to each other with electrical network in one group output and the relay group; Also comprise: one can control the fire pump soft start and softly stops and making the M curve of fire pump start and stop approach the intelligent motor controller that pump moment is held linearity curve, another group output of its input and Programmable Logic Controller links to each other, and link to each other with power generating facilities and power grids by air switch, its output is connected with motor with thermal relay by contactor.
Controller part of the present utility model is owing to adopted Programmable Logic Controller to replace the relay-operated controller that the reason relay control circuit is formed, not only make simple friction of hardware connection and noise, the fast reliable in function of response speed, not fragile long service life, and can revise software program according to the different needs that uses, and need not to change hardware, convenient quick again, in addition, Programmable Logic Controller also can be finished the Premium Features that can't finish such as relay control circuits such as communication, self checks; Simultaneously, the utility model not only need not contact switch and switches, and can be applicable to the start and stop of all asynchronous machines owing to adopt the intelligent motor controller replacement former in Y-△ and autotransformer or frequency converter etc. in the loop, and versatility is good.
Concrete device of the present utility model is provided by following enforcement.
Fig. 1 is the internal structure schematic diagram according to the fire-fighting electrical control cabinet that the utility model proposes.
Fig. 2 is the guidance panel of cabinet front upper shown in Figure 1 and the cabinet door of bottom.
Fig. 3 is the system block diagram according to the fire-fighting electrical control cabinet that the utility model proposes.
Fig. 4 is the block diagram according to the control flow of Programmable Logic Controller in the fire-fighting electrical control cabinet that the utility model proposes.
Describe details and working condition thereof in detail below in conjunction with accompanying drawing, other purpose, feature and advantage therefrom also of the present utility model as can be seen according to the concrete device of the preferred embodiment that the utility model proposes.
See also Fig. 1 and Fig. 2, label 1 is denoted as the cabinet of fire-fighting electrical control cabinet, and it is surrounded by six faces, wherein, is one to be convenient to the guidance panel 11 of control operation on the top in cabinet 1 front, is provided with each control switch that comprises mains switch on guidance panel.Be one to have handle 12 and rotating cabinet door 13 below the bottom in cabinet 1 front is control panel 11.The bottom is provided with the binding post group 2 that is used for the signal handing-over in cabinet 1, and wherein a row is signal terminal 21, and another row is major loop binding post 22.At binding post group 2 upper left faces is one to be used for the electric bell 3 of signal prompt.The right of electric bell 3 with above be provided with the relay group 4 that can realize the fire-fighting electrical control, wherein, what be positioned at electric bell 3 the right is thermal relay 41, it above electric bell 3 and thermal relay 41 contactor 42 that a row connects the fire pump motor, wherein two contactors are according to the instruction of Programmable Logic Controller 5, control fire pump in good time and reach at full speed that the back breaks away from intelligent motor controller 7 and is connected with electrical network.On the upper left side of contactor 42 are auxiliary relays 43.It above auxiliary relay 43 fuse of establishing for the protection control cubicle 6.Be provided with a controller 5 on the next door of auxiliary relay 43, it has adopted the Programmable Logic Controller 5 that is replaced former relay control circuit by software.One intelligent motor controller 7 is set on the top of cabinet 1, it can control fire pump soft start and soft stopping, and the M curve that can make the fire pump start and stop approaches pump torque factor curve, in the utility model, described intelligent motor controller 7 adopts STC, SMC-2, SMC PLUS, the parts of SMC dialog plus model.Between Programmable Logic Controller 5 and intelligent motor controller 7, be provided with all air switch 8.
Referring to Fig. 3, this is the system block diagram of the utility model fire-fighting electrical control cabinet.One input of Programmable Logic Controller 5 is connected with each control signal on the guidance panel 11, and it also is subjected to the control of central control room, be connected with the communication terminal of central control room, the contactor 41 that links to each other with electrical network in order to the control fire pump in its output and the relay group 4 joins, and another output is connected with the input of intelligent motor controller 7; Described intelligent motor controller 7 is in order to control fire pump soft start and softly stop and making the M curve of fire pump start and stop approach pump torque factor curve, for this reason, it is provided with and can makes pump motor smooth start and the parameter setting end that stops, its output is connected with pump motor with thermal relay 43 by contactor 42, with the soft start and soft the stopping of control pump motor.When Programmable Logic Controller 5 is received an effective control signal from guidance panel 11, or when receiving control signal from central control room, just control contactor 42 is connected corresponding motor with thermal relay 43, start the intelligent motor controller 7 that has configured parameter simultaneously, by contactor 42 and thermal relay 43 control fire pump soft starts.After fire pump reached predetermined speed, Programmable Logic Controller 5 control bypass contactors 43 helped fire pump to break away from the control of intelligent electric machine control 7, and directly are connected with electrical network.
See also Fig. 4, this is the block diagram of the control flow of Programmable Logic Controller 5.
When using the fire-fighting electrical control cabinet, according to each switching operation operation, operational mode or working procedure are set earlier, the air switch that closes, the power turn-on switch makes fire-fighting electrical control cabinet normal operation input.When control cubicle was in program control running status, if the Programmable Logic Controller in the control cubicle is out of order, " program control operation " indicator light went out, if Programmable Logic Controller is normal, " program control operation " indicator light is bright, and Programmable Logic Controller is just monitored the whole system operation situation.The pressure of its first inspection panel, smog, temperature, button, remote button and central control room have not fire-fighting signal.When no fire-fighting signal, judge 720 hours regularly the time of trial run whether arrive, if 720 hour time arrived " timer zero clearing " earlier, main subsequently fire pump trial run, standby fire pump trial run; With this constantly circulation with judged whether " fire-fighting signal ", if the fire-fighting signal is arranged, Programmable Logic Controller 5 control contactor is on one side connected corresponding main fire pump motor, start intelligent motor controller 7 controls that configured start-up parameter simultaneously and start main fire pump, and judge whether main fire-fighting equipment starts and whether startup is finished, after main fire pump startup is finished and is reached at full speed, just controlling motor directly links to each other with electrical network, bypass contactor just helps main fire pump to break away from intelligent motor controller and directly is connected on the electrical network at this moment, and Programmable Logic Controller 5 continues still to monitor whether the operation of main fire pump is normal; When main fire pump does not start or moves when undesired, control at once starts stand-by pump, Programmable Logic Controller 5 control contactor is on one side connected corresponding standby fire pump motor, start intelligent motor controller 7 controls that configured start-up parameter simultaneously and start standby fire pump, and judge whether stand-by pump starts and whether startup is finished, after the stand-by pump startup is finished and is reached at full speed, just controlling motor directly links to each other with electrical network, bypass contactor just helped standby fire pump disengaging intelligent motor controller and directly was connected on the electrical network this moment, Programmable Logic Controller 5 continues still to monitor whether the operation of standby fire pump is normal, operation is undesired if stand-by pump does not start or start the back, and Programmable Logic Controller 5 is just controlled warning circuit work.
The utility model fire-fighting electrical control cabinet is owing to adopted programmable controller and intelligent motor controller, not only improved hardware configuration, more make its have Fire Control Cabinet at present commonly used incomparable Premium Features, especially guarantee the reliable three grades of measures that start of fire pump: first trial run regularly in 720 hours, to prevent the pump corrosion; It two is to start fire pump according to load torque characteristic, guarantees the reliability that starts; It three is when main fire pump can not start, and drops into the stand-by pump operation.Thereby guarantee the reliability that fire pump starts, therefore very practical.
Claims (3)
1. fire-fighting electrical control cabinet that is used to control the start and stop of different occasion fire pump comprises:
One rectangular cabinet (1), cabinet (1) front upper are one to which is provided with the guidance panel (11) of each control assembly, and the bottom is one to have the cabinet door (13) of handle,
In cabinet (1), be provided with:
The binding post group (2) that is used for the signal handing-over, it is made up of signal terminal (21) and major loop binding post (22);
Be used to realize the relay group (4) controlled, it is made up of thermal relay (41) and contactor (42) and auxiliary relay (43);
Energy control operation and the controller (5) of realizing each function;
Be used for all air switches (8) of being communicated with electrical network;
It is characterized in that,
Described controller (5) adopts Programmable Logic Controller (5), and one group input is gone up each control signal with guidance panel (11) and is connected, and another group input is connected with the communication terminal of central control room; The contactor (41) that the control fire pump of using in one group output and the relay group (4) links to each other with electrical network joins;
Described fire-fighting electrical control cabinet also comprises:
One can control the fire pump soft start and softly stops and making the M curve of fire pump start and stop approach the intelligent motor controller (7) of pump torque factor curve, its input links to each other with another output of Programmable Logic Controller (5), and link to each other with power generating facilities and power grids by air switch (8), its output passes through contactor (42) and is connected with motor with thermal relay (43).
2. fire-fighting electrical control cabinet as claimed in claim 1 is characterized in that, described intelligent motor controller (7) adopts STC, SMC-2, SMC PLUS, the parts of SMC dialog plus model.
3. fire-fighting electrical control cabinet as claimed in claim 1 is characterized in that, also is provided with electric bell (3) that is used for signal prompt and the fuse (6) of protecting each parts of control cubicle in described regulator cubicle cabinet (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96230805 CN2324681Y (en) | 1996-09-28 | 1996-09-28 | Fire-extingurishing electric control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96230805 CN2324681Y (en) | 1996-09-28 | 1996-09-28 | Fire-extingurishing electric control cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2324681Y true CN2324681Y (en) | 1999-06-16 |
Family
ID=33908140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96230805 Expired - Fee Related CN2324681Y (en) | 1996-09-28 | 1996-09-28 | Fire-extingurishing electric control cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2324681Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684564A (en) * | 2012-06-13 | 2012-09-19 | 彭勇 | Corrosion prevention device for main shaft of motor of electric water pump |
| CN105604924A (en) * | 2016-02-17 | 2016-05-25 | 苏州中锦电气科技有限公司 | Energy-saving variable frequency pump control cabinet |
| CN107639156A (en) * | 2017-12-13 | 2018-01-30 | 云南九泰建设工程有限公司 | A kind of light steel villa process equipment |
| CN110739886A (en) * | 2018-07-19 | 2020-01-31 | 宜兴市创联自动化设备有限公司 | automatic medicine-adding intelligent control cabinet |
-
1996
- 1996-09-28 CN CN 96230805 patent/CN2324681Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684564A (en) * | 2012-06-13 | 2012-09-19 | 彭勇 | Corrosion prevention device for main shaft of motor of electric water pump |
| CN105604924A (en) * | 2016-02-17 | 2016-05-25 | 苏州中锦电气科技有限公司 | Energy-saving variable frequency pump control cabinet |
| CN107639156A (en) * | 2017-12-13 | 2018-01-30 | 云南九泰建设工程有限公司 | A kind of light steel villa process equipment |
| CN110739886A (en) * | 2018-07-19 | 2020-01-31 | 宜兴市创联自动化设备有限公司 | automatic medicine-adding intelligent control cabinet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104110800A (en) | Air conditioner, and on-off control method and on-off control system for resistive load | |
| CN208401623U (en) | A kind of power plant's emergency diesel engine unit logic control system | |
| CN2324681Y (en) | Fire-extingurishing electric control cabinet | |
| CN110044035A (en) | Fault-tolerant circuit and control method for variable-frequency air conditioner controller | |
| CN1549281A (en) | Transformer cooling fan controlling apparatus | |
| CN112377475A (en) | Automatic control system for pipeline groove | |
| CN218158786U (en) | Water pump starting control system | |
| CN202503466U (en) | Compressor starting circuit and air conditioner | |
| CN210154027U (en) | Fault-tolerant circuit of variable-frequency air conditioner controller | |
| CN213981403U (en) | Automatic control system for pipeline groove | |
| CN113495524A (en) | Integrated control system for transformer cooler | |
| CN209982174U (en) | Parallel AC UPS | |
| CN111338258A (en) | Control circuit and control method for low-voltage alternating-current control loop in power supply voltage abnormity | |
| CN107171599B (en) | Skilled hand's behaviour's type emergency bearing oil pump control device and method | |
| CN2343614Y (en) | Motor speed regulator for automatic constant pressure supplying water and thermostatic ventilation | |
| CN110931311A (en) | VSP5 switch electric control circuit | |
| CN111313370A (en) | Power supply open-phase protection circuit of alternating current servo speed regulation system | |
| CN100334790C (en) | Dynamic unti-theft electric pulling device for beam-pumping unit | |
| CN219220796U (en) | Excitation power cabinet fan control device | |
| CN211478924U (en) | Control circuit for low-voltage alternating-current control loop when power supply voltage is abnormal | |
| CN217769936U (en) | Fan control system with frequency conversion redundancy function | |
| CN216086519U (en) | Production system recovery device | |
| CN217080637U (en) | Full-automatic unit power supply parallel system | |
| CN213235404U (en) | Integrated online soft start intelligent control system of electric mobile air compressor | |
| CN108736766B (en) | Control system suitable for starting and running of motor and implementation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |