CN207976777U - A kind of air blower ventilation of constant pressure electric-control system - Google Patents
A kind of air blower ventilation of constant pressure electric-control system Download PDFInfo
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- CN207976777U CN207976777U CN201820281878.0U CN201820281878U CN207976777U CN 207976777 U CN207976777 U CN 207976777U CN 201820281878 U CN201820281878 U CN 201820281878U CN 207976777 U CN207976777 U CN 207976777U
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Abstract
The utility model discloses a kind of air blower ventilation of constant pressure electric-control system, the electric-control system includes：Wind pressure power transmitter, SFD signal isolators, INTELLIGENT PID REGULATOR, switching power unit, change-over switch, electromagnetic relay and variable frequency starting switch, the wind pressure power transmitter is mounted in air blower air duct, and SFD signal isolators, INTELLIGENT PID REGULATOR, switching power unit, change-over switch and electromagnetic relay are by electrical control circuit integrated installation in distribution box.The utility model can according to air volume on-line intelligence active perception, automatically analyze, quickly handle after signal transmission to Roots blower frequency converter, frequency converter will be according to the power of input signal, the height of frequency is adjusted, ensures system air feed under pressure constant state.
Description
Technical field
The utility model is related to Roots blower air feed electronic control technology fields, and in particular to a kind of air blower ventilation of constant pressure electricity
Control system.
Background technology
Roots blower gives flotation cell air feed in floatation system, with air force according to the variation need of mill head grade
The steam supply valve adjusted on flotation cell is completed, and when steam supply valve is adjusted to smaller air quantity gas supply, can make Roots blower wind
Pressure rises, and Roots blower is run in the case where high wind pressure feels suffocated overload industrial and mineral, and air blast can be burnt out long lasting for running overload
Owner's motor will cause ore-sorting system to stop production after main motor failure.
Utility model content
The purpose of this utility model is to provide a kind of air blower ventilation of constant pressure electric-control systems, to solve current Roots's drum
Wind turbine is unable to ventilation of constant pressure and the operation in the case where high wind pressure feels suffocated overload industrial and mineral of Roots blower long-time is caused to burn out air blast owner
The technical issues of motor.
To achieve the above object, the utility model provides a kind of air blower ventilation of constant pressure electric-control system, the automatically controlled system
System includes：Wind pressure power transmitter, SFD signal isolators, INTELLIGENT PID REGULATOR, switching power unit, change-over switch, electromagnetism after
Electric appliance and variable frequency starting switch, the wind pressure power transmitter are mounted in air blower air duct, SFD signal isolators, intelligent PID
Adjuster, switching power unit, change-over switch, electromagnetic relay and variable frequency starting switch by electrical control circuit integrated installation with
In electronic box, the INTELLIGENT PID REGULATOR, the switching power unit, the change-over switch and the variable frequency starting switch in parallel
It is connected between electrical control circuit L, N power line, the electromagnetic relay is connected in series with the change-over switch, the switch
The DC output end of supply unit respectively with the DC input of the wind pressure power transmitter and the SFD signal isolators
DC input connection, the feedback signal output of the wind pressure power transmitter is connected to the SFD signal isolators
Pick-up feedback signal input terminal, the pick-up feedback signal output of the SFD signal isolators are connected to the intelligent PID and adjust
The pick-up feedback signal output of the pick-up feedback signal input terminal of device, the INTELLIGENT PID REGULATOR is connected to blower variable frequency
The control switch of the pick-up feedback signal input terminal of device, the electromagnetic relay connects institute by variable frequency starting switch control
Blower variable frequency device is stated, the pick-up feedback signal input terminal and pick-up feedback signal output of the INTELLIGENT PID REGULATOR are logical
It crosses signal shielding line and is connected to the INTELLIGENT PID REGULATOR.
Further, the electrical control circuit is externally provided with connecting terminal block, and the connecting terminal block is provided with device electricity
Source input interface, wind pressure pick-up feedback signal interface, wind pressure power transmitter power supply interface, frequency converter are to stationary interface and frequency converter
Start interface, described device power input interface is connect with electrical control circuit L, N power line input terminal, the Switching Power Supply dress
The DC output end set passes through the wind pressure power transmitter power supply interface external connection to the direct current of the wind pressure power transmitter
The feedback signal output of electrical input, the wind pressure power transmitter is connected to by the wind pressure pick-up feedback signal interface
The pick-up feedback signal output of the pick-up feedback signal input terminal of the SFD signal isolators, the INTELLIGENT PID REGULATOR is logical
The pick-up feedback signal input terminal that the frequency converter is connected to the blower variable frequency device to stationary interface is crossed, the variable frequency starting is opened
It closes and the interface connection blower variable frequency device is started by the frequency converter.
Further, described device power input interface includes that the L power line interfaces of 220V alternating currents and N power lines connect
Mouthful, the L power line interfaces and N power line interfaces are respectively connected to electrical control circuit L power lines and the power supply of N power lines is defeated
Enter end.
Further, the wind pressure pick-up feedback signal interface includes spare interface, control line IN interfaces and control line
GND interfaces, the control line IN interfaces and the control line GND interfaces are connected to by control line IN and control line GND respectively
The control line IN input terminals and control line GND input terminals of the SFD signal isolators.
Further, the wind pressure power transmitter power supply interface includes+24VM interfaces and GND the interfaces ,+24VM interfaces
With the GND interfaces be internally respectively connected to the switching power unit+24VM DC output ends and GND direct currents it is defeated
Go out the terminal ,+24VM interfaces and the GND interfaces external connection to the wind pressure power transmitter+24VM power supply terminals and
GND power supply terminals.
Further, the frequency converter includes D/A signal feedings interface and CM2 signal feeding interfaces to stationary interface, described
D/A signal feedings interface and the CM2 signal feedings interface are internally respectively connected to the D/A signals of the INTELLIGENT PID REGULATOR
Leading-out terminal and CM2 signal output terminals.
Further, it includes FWD interfaces and CM1 interfaces that the frequency converter, which starts interface, the FWD interfaces and the CM1
Interface is internally respectively connected to the FWD connection terminals and CM1 connection terminals of the variable frequency starting switch ends.
Further, the pick-up feedback signal output of the SFD signal isolators includes that the first pick-up feedback signal is defeated
Go out terminal and the second pick-up feedback signal output, several reserved connecting terminals, institute are provided on the SFD signal isolators
The pick-up feedback signal input terminal for stating INTELLIGENT PID REGULATOR includes the first pick-up feedback signal input terminal, the second pick-up feedback
Signal input terminal and reserved pick-up feedback signal input terminal, the first pick-up feedback letter of the SFD signal isolators
Number leading-out terminal and the second pick-up feedback signal output are inputted with the control line IN of the SFD signal isolators respectively
Terminal and control line GND input terminals are connected to and pass through the first pick-up of signal transmssion line and the INTELLIGENT PID REGULATOR respectively
Feedback signal input terminal is connected with the second pick-up feedback signal input terminal, the reserved change of the INTELLIGENT PID REGULATOR
Send reserved connecting terminal and the wind pressure pick-up feedback signal of feedback signal input terminal by the SFD signal isolators
The spare interface of interface is connected to.
Further, the electric-control system further includes controlling line voltmeter, power supply indicator and converting operation indicator light,
The control line voltmeter and the power supply indicator are connected in parallel to respectively between electrical control circuit L, N power line, institute
Converting operation indicator light is stated to be connected in series with variable frequency starting switch.
The invention also discloses a kind of electric-control method of air blower ventilation of constant pressure electric-control system, the electric-control method packets
It includes：It is powered for electrical control circuit L, N power line by the installation's power source input interface on connecting terminal block using 220V alternating currents；Electricity
Control circuit L, N power line is respectively INTELLIGENT PID REGULATOR, switching power unit, change-over switch and the variable frequency starting being connected in parallel
Switch provides 220V alternating currents；Switching power unit 220V alternating currents are converted to after 24V direct currents as wind pressure power transmitter and
SFD signal isolators are powered, wherein the switching power unit is via the wind pressure power transmitter power supply interface on connecting terminal block
Externally power for wind pressure power transmitter；By on change-over switch, electromagnetic relay, variable frequency starting switch and connecting terminal block
Frequency converter starts interface co- controlling blower variable frequency device and connects power supply circuit startup；Wind pressure power transmitter is in air blower air duct
Interior acquisition is for wind pressure and is converted into 4-20mA current signals；4-20mA current signals are become by the wind pressure on connecting terminal block
The pick-up feedback signal input terminal for sending feedback signal interface to be input to SFD signal isolators；SFD signal isolators are to 4-20mA electricity
Stream signal handle and pick-up feedback signal is input to intelligent PID adjusting by pick-up feedback signal output by treated
The pick-up feedback signal input terminal of device；After INTELLIGENT PID REGULATOR receives the practical air feed pressure signal of air blower air duct, according to
Pre-set target air feed pressure value SV and the practical air feed pressure value P V received carry out operation comparison, obtain feedback regulation
Value；Based on the pick-up feedback signal of feedback regulation value by the pick-up feedback signal output of INTELLIGENT PID REGULATOR and via connecing
Line terminals row's upconverter is transferred to stationary interface on blower variable frequency device Analog control terminal；And blower variable frequency device according to
The pick-up feedback signal control air blower ventilation of constant pressure received；Wherein, the blower variable frequency device is connected power supply circuit and is started
Control method include：It is controlled by change-over switch and connects electromagnetic relay connection power supply circuit；Electromagnetic relay connects power supply
Circuit control variable frequency starting switch connection power supply circuit；And variable frequency starting switch connection power supply circuit is via on connecting terminal block
Frequency converter starts Interface Controller blower variable frequency device and connects power supply circuit startup.
The utility model has the following advantages that：
It, can be according to air quantity the utility model proposes a kind of air blower ventilation of constant pressure electric-control system and its electric-control method
Size on-line intelligence active perception, automatically analyze, quickly handle after signal transmission to Roots blower frequency converter, frequency converter will
According to the power of input signal, the height of frequency is adjusted, ensures system air feed under pressure constant state.
Description of the drawings
Fig. 1 is a kind of electrical connection schematic diagram of air blower ventilation of constant pressure electric-control system of the utility model.
Fig. 2 is a kind of electrical control circuit figure of air blower ventilation of constant pressure electric-control system of the utility model.
Fig. 3 is the terminals that a kind of electrical control circuit of air blower ventilation of constant pressure electric-control system of the utility model is externally arranged
Schematic diagram is arranged in the interface of son row.
Fig. 4 is a kind of connecting terminal of the SFD signal isolators of air blower ventilation of constant pressure electric-control system of the utility model
Schematic diagram.
Fig. 5 is a kind of flow chart of the electric-control method of air blower ventilation of constant pressure electric-control system of the utility model.
Specific implementation mode
The following examples illustrate the utility model, but is not intended to limit the scope of the present invention.
Embodiment 1
With reference to figure 1, a kind of air blower ventilation of constant pressure electric-control system disclosed in the present embodiment, wherein air blower is mostly golden
Belong to the Roots blower for flotation cell air feed in the floatation system of ore dressing plant, including：Wind pressure power transmitter 01, SFD signal isolators
02, INTELLIGENT PID REGULATOR 03, switching power unit 04, change-over switch 05, electromagnetic relay 06 and variable frequency starting switch 07, wind
Pressure transmitter 01 is mounted in air blower discharge pipe, SFD signal isolators 02, INTELLIGENT PID REGULATOR 03, switching power unit
04, change-over switch 05, electromagnetic relay 06 and variable frequency starting switch 07 by 08 integrated installation of electrical control circuit in distribution box, it is excellent
Selection of land, distribution box are installed close to blower variable frequency device 09, with reference to figure 2, INTELLIGENT PID REGULATOR 03, switching power unit 04, conversion
Switch 05 and variable frequency starting switch 07 are connected in parallel between electrical control circuit L, N power line, electromagnetic relay 06 and change-over switch
05 is connected in series with, and electrical control circuit 08 is externally provided with connecting terminal block 10, and with reference to figure 4, connecting terminal block 10 is provided with device electricity
Source input interface 11, wind pressure pick-up feedback signal interface 12, wind pressure power transmitter power supply interface 13, frequency converter are to stationary interface 14
Starting interface 15 with frequency converter, installation's power source input interface 11 is connect with electrical control circuit L, N power line input terminal, referring to figs. 1 to
4, the DC output end 16 of switching power unit 04 respectively with wind pressure power transmitter power supply interface 13 and SFD signal isolators 02
DC input 17 connect, the direct current of the DC output end 16 and SFD signal isolators 02 of switching power unit 04
Input terminal 17 connect, in particular to ,+24VM DC output ends 161 of the DC output end 16 of switching power unit 04
With GND DC output ends 162 respectively with the+24VM DC supply inputs of the DC input of SFD signal isolators 02 17
Terminal 171 and GND DC supply inputs terminal 172 connect, 13 external connection of wind pressure power transmitter power supply interface to wind pressure pick-up
The feedback signal output of the DC input of device 01, wind pressure power transmitter 01 passes through wind pressure pick-up feedback signal interface 12
It is connected to the pick-up feedback signal input terminal 18 of SFD signal isolators 02, the pick-up feedback signal output of SFD signal isolators 02
End 19 is connected to the pick-up feedback signal input terminal 20 of INTELLIGENT PID REGULATOR 03, the pick-up feedback signal of INTELLIGENT PID REGULATOR 03
Output end 21 is connected to the pick-up feedback signal input terminal of blower variable frequency device 09, electromagnetism relay by frequency converter to stationary interface 14
The control switch ends of device 06 are connected to the both ends of variable frequency starting switch 07, and the both ends of variable frequency starting switch 07 are opened by frequency converter
Mobile interface 15 connects blower variable frequency device 09, the pick-up feedback signal input terminal 20 and pick-up feedback letter of INTELLIGENT PID REGULATOR 03
Number output end 21 is connected to INTELLIGENT PID REGULATOR 03 by signal shielding line.
Referring to figs. 2 to 4, further, installation's power source input interface 11 includes the L power line interfaces 111 of 220V alternating currents
With N power line interfaces 112, L power line interfaces 111 and N power line interfaces 112 are respectively connected to electrical control circuit L power lines and N electricity
The power input of the line of force.Wind pressure pick-up feedback signal interface 12 includes control line IN interfaces 121 and control line GND interfaces
122, control line IN interface 121 and control line GND interfaces 122 are connected to SFD signals by control line IN and control line GND respectively
The control line IN input terminals 181 and control line GND input terminals 182 of isolator 02, it is preferable that wind pressure pick-up feedback signal
Interface 12 is additionally provided with spare interface 123.Wind pressure power transmitter power supply interface 13 includes+24VM interfaces 131 and GND interfaces 132 ,+
24VM interfaces 131 and GND interfaces 132 are to the interior sub 161 Hes of+24VM DC output ends for being respectively connected to switching power unit 04
GND DC output ends 162 ,+24VM interfaces 131 and 132 external connection of GND interfaces to wind pressure power transmitter 01+24VM
Power supply terminal and GND power supply terminals.Frequency converter includes D/A signal feedings interface 141 and CM2 signal feeding interfaces to stationary interface 14
142, D/A signal feeding interfaces 141 and CM2 signal feedings interface 142 are to the interior D/A for being respectively connected to INTELLIGENT PID REGULATOR 03
Signal output terminal 211 and CM2 signal output terminals 212.It includes FWD interfaces 151 and CM1 interfaces that frequency converter, which starts interface 15,
152, FWD interfaces 151 and CM1 interfaces 152 are to interior 22 He of FWD connection terminals for being respectively connected to 07 both ends of variable frequency starting switch
CM1 connection terminals 23.The pick-up feedback signal output 19 of SFD signal isolators 02 includes the first pick-up feedback signal output
Son 191 and the second pick-up feedback signal output 192, it is preferable that in the present embodiment, also set up on SFD signal isolators 02
There are the first and second reserved connecting terminals 24 and 25, the pick-up feedback signal input terminal 20 of INTELLIGENT PID REGULATOR 03 includes first
Pick-up feedback signal input terminal 201 and the second pick-up feedback signal input terminal 202, it is preferable that pick-up feedback signal inputs
End 20 further includes reserved pick-up feedback signal input terminal 203, the first pick-up feedback signal output of SFD signal isolators 02
Son 191 and second pick-up feedback signal output 192 respectively with the control line IN input terminals 181 of SFD signal isolators 02
It is connected to control line GND input terminals 182 and is fed back respectively by the first pick-up of signal transmssion line and INTELLIGENT PID REGULATOR 03
Signal input terminal 201 and the second pick-up feedback signal input terminal 202 connect, and the reserved pick-up of INTELLIGENT PID REGULATOR 03 is anti-
Feedback signal input terminal 203 is become by the first and second reserved connecting terminals 24 and 25 of SFD signal isolators 02 with wind pressure
The spare interface 123 of feedback signal interface 12 is sent to be connected to.
With reference to figure 2, it is preferable that electric-control system further includes control line voltmeter 26, power supply indicator 27 and converting operation
Indicator light 28, controls line voltmeter 26 and power supply indicator 27 is connected in parallel to respectively between electrical control circuit L, N power line, becomes
Frequency run indicator 28 is connected in series with variable frequency starting switch 07.
With reference to figure 5, a kind of electric-control method of air blower ventilation of constant pressure electric-control system disclosed in the present embodiment includes：It utilizes
220V alternating currents are powered by the installation's power source input interface 11 on connecting terminal block 10 for electrical control circuit L, N power line；It is automatically controlled
Circuit L, N power line is respectively INTELLIGENT PID REGULATOR 03, switching power unit 04, change-over switch 05 and the frequency conversion being connected in parallel
Starting switch 07 provides 220V alternating currents；Switching power unit 04 is wind pressure after 220V alternating currents are converted to 24V direct currents
Transmitter 01 and SFD signal isolators 02 are powered, wherein switching power unit 04 becomes via the wind pressure on connecting terminal block 10
Device power supply interface 13 is sent externally to power for wind pressure power transmitter 01；It is opened by change-over switch 05, electromagnetic relay 06, variable frequency starting
It closes the frequency converter on 07 and connecting terminal block 10 and starts 15 co- controlling blower variable frequency device 09 of interface connection power supply circuit 11
Start；Wind pressure power transmitter 01 acquires for wind pressure in air blower air duct and is converted into 4-20mA current signals；4-20mA
Current signal is input to the change of SFD signal isolators 02 by the wind pressure pick-up feedback signal interface 12 on connecting terminal block 10
Send feedback signal input terminal 18；SFD signal isolators 02 to 4-20mA current signals handle and pick-up is anti-by treated
Feedback signal is input to the pick-up feedback signal input terminal 20 of INTELLIGENT PID REGULATOR 03 by pick-up feedback signal output 19；Intelligence
After energy PID regulator 03 receives the practical air feed pressure signal of air blower air duct, according to pre-set target for wind pressure
Value SV and the practical air feed pressure value P V received carry out operation comparison, obtain feedback regulation value；Change based on feedback regulation value
Send feedback signal by the pick-up feedback signal output 21 of INTELLIGENT PID REGULATOR 03 and via 10 upconverter of connecting terminal block
It is transferred on 09 Analog control terminal of blower variable frequency device to stationary interface 14；And blower variable frequency device 09 is according to the change received
Feedback signal is sent to control air blower ventilation of constant pressure；Wherein, blower variable frequency device 09 connects the control method packet that power supply circuit starts
It includes：It is controlled by change-over switch 05 and connects the connection power supply circuit of electromagnetic relay 06；Electromagnetic relay 06 connects power supply circuit 11
It controls variable frequency starting switch 07 and connects power supply circuit 11；And variable frequency starting switch 07 connects power supply circuit 11 via connecting terminal block
Frequency converter on 10 starts interface 15 and controls the 09 connection startup of power supply circuit 11 of blower variable frequency device.
The utility model acquires pre-set target for wind pressure and wind pressure power transmitter by INTELLIGENT PID REGULATOR
To it is practical carry out operation comparison online for wind pressure, as the practical air feed pressure value P V of the collected air duct of wind pressure power transmitter
When target air feed pressure value SV pre-set more than INTELLIGENT PID REGULATOR, INTELLIGENT PID REGULATOR will close after calculating relatively
Suitable feedback signal is defeated by blower variable frequency device Analog control terminal, and blower variable frequency device is connected to after signal frequency reducing rate to intelligence
The pre-set target air feed pressure value SV values operation of energy PID regulator, conversely, working as the collected air duct of wind pressure power transmitter
When practical air feed pressure value P V is less than INTELLIGENT PID REGULATOR pre-set target air feed pressure value SV, INTELLIGENT PID REGULATOR warp
It crosses calculating more suitable feedback signal is defeated by blower variable frequency device Analog control terminal, blower variable frequency device is connected to
Raising frequency rate is to the pre-set target air feed pressure value SV values operation of INTELLIGENT PID REGULATOR after signal, according to above-mentioned negative-feedback original
It manages to control Roots blower ventilation of constant pressure operation with closed ring.It puts into operation after debugging, when floatation system is mounted on flotation cell
On air-valve when, Roots blower frequency converter constantly at pre-set target air feed pressure value SV carry out followability reduction
Frequency increases frequency operation, and air blower or else can occur and cause superpressure to feel suffocated running overload due to closing air-valve, to
Ore-dressing technique and mineral processing index are stabilized, has also saved power consumption to greatest extent.
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention, belong to the utility model and want
Seek the range of protection.
Claims (9)
1. a kind of air blower ventilation of constant pressure electric-control system, which is characterized in that the electric-control system includes：Wind pressure power transmitter, SFD
Signal isolator, INTELLIGENT PID REGULATOR, switching power unit, change-over switch, electromagnetic relay and variable frequency starting switch, it is described
Wind pressure power transmitter is mounted in air blower air duct, and SFD signal isolators, switching power unit, turn INTELLIGENT PID REGULATOR
Switch, electromagnetic relay and variable frequency starting switch are changed by electrical control circuit integrated installation in distribution box, the intelligent PID is adjusted
Device, the switching power unit, the change-over switch and the variable frequency starting switch in parallel are connected to electrical control circuit L, N power line
Between, the electromagnetic relay is connected in series with the change-over switch, the DC output end difference of the switching power unit
It is connect with the DC input of the DC input of the wind pressure power transmitter and the SFD signal isolators, the wind
The feedback signal output of pressure transmitter is connected to the pick-up feedback signal input terminal of the SFD signal isolators, the SFD
The pick-up feedback signal output of signal isolator is connected to the pick-up feedback signal input terminal of the INTELLIGENT PID REGULATOR, institute
The pick-up feedback signal output for stating INTELLIGENT PID REGULATOR is connected to the pick-up feedback signal input terminal of blower variable frequency device, institute
The control switch for stating electromagnetic relay connects the blower variable frequency device, the intelligence by variable frequency starting switch control
The pick-up feedback signal input terminal and pick-up feedback signal output of PID regulator are connected to the intelligence by signal shielding line
It can PID regulator.
2. a kind of air blower ventilation of constant pressure electric-control system according to claim 1, which is characterized in that the electrical control circuit pair
It is provided with connecting terminal block outside, the connecting terminal block is provided with installation's power source input interface, wind pressure pick-up feedback signal connects
Mouth, wind pressure power transmitter power supply interface, frequency converter start interface to stationary interface and frequency converter, described device power input interface with
Electrical control circuit L, N power line input terminal connects, and the DC output end of the switching power unit passes through the wind pressure pick-up
Device power supply interface external connection is to the DC input of the wind pressure power transmitter, the feedback signal of the wind pressure power transmitter
The pick-up feedback signal that output end is connected to the SFD signal isolators by the wind pressure pick-up feedback signal interface inputs
End, the pick-up feedback signal output of the INTELLIGENT PID REGULATOR are connected to the air blast by the frequency converter to stationary interface
The pick-up feedback signal input terminal of machine frequency converter, the variable frequency starting switch start interface by the frequency converter and connect the drum
Fan frequency converter.
3. a kind of air blower ventilation of constant pressure electric-control system according to claim 2, which is characterized in that described device power supply is defeated
Incoming interface includes the L power line interfaces and N power line interfaces of 220V alternating currents, and the L power line interfaces and the N power lines connect
Mouth is respectively connected to the power input of electrical control circuit L power lines and N power lines.
4. a kind of air blower ventilation of constant pressure electric-control system according to claim 2, which is characterized in that the wind pressure pick-up
Feedback signal interface includes spare interface, control line IN interfaces and control line GND interfaces, the control line IN interfaces and the control
Line GND interfaces processed are connected to the control line IN input terminals of the SFD signal isolators by control line IN and control line GND respectively
Son and control line GND input terminals.
5. a kind of air blower ventilation of constant pressure electric-control system according to claim 2, which is characterized in that the wind pressure pick-up
Device power supply interface includes+24VM interfaces and GND interfaces, and+24VM the interfaces and the GND interfaces are internally respectively connected to described
+ 24VM DC output ends and GND DC output end of switching power unit ,+24VM the interfaces and the GND connect
Mouthful external connection to the wind pressure power transmitter+24VM power supply terminals and GND power supply terminals.
6. a kind of air blower ventilation of constant pressure electric-control system according to claim 2, which is characterized in that the frequency converter is given
Interface includes D/A signal feedings interface and CM2 signal feeding interfaces, the D/A signal feedings interface and the CM2 signal feedings
Interface is internally respectively connected to the D/A signal output terminals and CM2 signal output terminals of the INTELLIGENT PID REGULATOR.
7. a kind of air blower ventilation of constant pressure electric-control system according to claim 2, which is characterized in that the frequency converter starts
Interface includes FWD interfaces and CM1 interfaces, and the FWD interfaces and the CM1 interfaces are internally respectively connected to the variable frequency starting and open
Close the FWD connection terminals and CM1 connection terminals at both ends.
8. a kind of air blower ventilation of constant pressure electric-control system according to claim 1, which is characterized in that the SFD signals every
Pick-up feedback signal output from device includes the first pick-up feedback signal output and the second pick-up feedback signal output
Son is provided with several reserved connecting terminals, the pick-up feedback signal of the INTELLIGENT PID REGULATOR on the SFD signal isolators
Input terminal includes the first pick-up feedback signal input terminal, the second pick-up feedback signal input terminal and reserved pick-up feedback signal
Input terminal, the first pick-up feedback signal output of the SFD signal isolators and the second pick-up feedback letter
Number leading-out terminal is connected to simultaneously with the control line IN input terminals of the SFD signal isolators and control line GND input terminals respectively
Pass through the first pick-up feedback signal input terminal and described second of signal transmssion line and the INTELLIGENT PID REGULATOR respectively
Pick-up feedback signal input terminal connects, and reserved pick-up feedback signal input terminal of the INTELLIGENT PID REGULATOR is described in
The reserved connecting terminal of SFD signal isolators is connected to the spare interface of the wind pressure pick-up feedback signal interface.
9. a kind of air blower ventilation of constant pressure electric-control system according to claim 1, which is characterized in that the electric-control system is also
Refer to including control line voltmeter, power supply indicator and converting operation indicator light, the control line voltmeter and the power supply
Show that lamp is connected in parallel to respectively between electrical control circuit L, N power line, the converting operation indicator light is switched with the variable frequency starting
It is connected in series with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820281878.0U CN207976777U (en) | 2018-02-28 | 2018-02-28 | A kind of air blower ventilation of constant pressure electric-control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820281878.0U CN207976777U (en) | 2018-02-28 | 2018-02-28 | A kind of air blower ventilation of constant pressure electric-control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207976777U true CN207976777U (en) | 2018-10-16 |
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ID=63767973
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820281878.0U Expired - Fee Related CN207976777U (en) | 2018-02-28 | 2018-02-28 | A kind of air blower ventilation of constant pressure electric-control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107932A (en) * | 2018-02-28 | 2018-06-01 | 巴彦淖尔西部铜业有限公司 | A kind of air blower ventilation of constant pressure electric-control system and its electric-control method |
-
2018
- 2018-02-28 CN CN201820281878.0U patent/CN207976777U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107932A (en) * | 2018-02-28 | 2018-06-01 | 巴彦淖尔西部铜业有限公司 | A kind of air blower ventilation of constant pressure electric-control system and its electric-control method |
| CN108107932B (en) * | 2018-02-28 | 2023-12-05 | 巴彦淖尔西部铜业有限公司 | Constant-pressure air supply power control system of blower and electric control method thereof |
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Granted publication date: 20181016 Termination date: 20200228 |