CN209016959U - A kind of dedusting main air blower frequency conversion and power frequency automatic switching control equipment - Google Patents
A kind of dedusting main air blower frequency conversion and power frequency automatic switching control equipment Download PDFInfo
- Publication number
- CN209016959U CN209016959U CN201821762215.7U CN201821762215U CN209016959U CN 209016959 U CN209016959 U CN 209016959U CN 201821762215 U CN201821762215 U CN 201821762215U CN 209016959 U CN209016959 U CN 209016959U
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- China
- Prior art keywords
- contactor
- cabinet
- frequency
- breaker
- frequency converter
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- Control Of Multiple Motors (AREA)
Abstract
The utility model discloses a kind of dedusting main air blower frequency conversions and power frequency automatic switching control equipment, belong to dedusting fan running technology field, the high-tension switch cabinet of device passes through that high-voltage solid-state is soft to open cabinet and frequency converter is connected to motor respectively, high-tension switch cabinet and high-voltage solid-state soft open set contactor I between cabinet, breaker I and contactor II are set between high-tension switch cabinet and frequency converter, contactor III and breaker II are set between frequency converter and motor, PLC control cabinet respectively with high-tension switch cabinet, motor, frequency converter, contactor I, contactor II, contactor III, breaker I and breaker II connect.The frequency conversion of the utility model/power frequency automatic switchover technology frequency converter passes through automatic fault detection, frequency converter failure signal is accessed into PLC Background control program by signal wire, after PLC Background control program is connected to frequency converter failure signal, it sends signal and realizes that frequency conversion, power frequency are automatically switched, reduce manpower waste, ensure dust removing effects, meet the requirement of environmental protection.
Description
Technical field
The utility model belongs to dedusting fan running technology field, and in particular to a kind of dedusting main air blower frequency conversion and power frequency from
Dynamic switching device.
Background technique
Existing dedusting frequency converter is manual one-to-one frequency conversion, but the sensitive shutdown phenomenon of defencive function of this frequency converter takes place frequently
Seriously affect production, and but frequency converter on the one hand dedusting patrol officer's real-time tracking is needed just to can know that, separately when breaking down
On the one hand it needs to notify that maintenance electrician reaches site inspection after dedusting patrol officer has found the failed shutdown of frequency converter true
Recognize rear manual frequency conversion, power frequency switching overlong time influences environmental protection even mineral hot furnace load down.
Utility model content
It is existing to solve the purpose of the utility model is to provide a kind of dedusting main air blower frequency conversion and power frequency automatic switching control equipment
Break down can not timely automated the problem of switching to power frequency for frequency converter in technology.
In order to achieve the above object, the technical solution adopted in the utility model are as follows:
A kind of dedusting main air blower frequency conversion and power frequency automatic switching control equipment, including high-tension switch cabinet, frequency converter, motor and with
The blower of motor connection, further includes power frequency switching device and automatic control device, the power frequency switching device includes high pressing
State is soft to open cabinet and contactor I, and the high-tension switch cabinet passes through that high-voltage solid-state is soft to open cabinet and frequency converter is connected to motor respectively, high
Compress switch cabinet and high-voltage solid-state is soft opens between cabinet setting contactor I, and breaker I is set gradually between high-tension switch cabinet and frequency converter
With contactor II, contactor III and breaker II are set gradually between frequency converter and motor, contactor I and contactor II connect
It is latched between tentaculum III for electric appliance, for preventing three to be closed at；The automatic control device includes PLC control cabinet, PLC control
Cabinet processed respectively with high-tension switch cabinet, motor, frequency converter, contactor I, contactor II, contactor III, breaker I and breaker
II connection, for controlling the transmission of signal and feedback signal.
The fault-signal output end of the frequency converter is connected to the signal input part of PLC control cabinet, the control of PLC control cabinet
Signal output end is connected with the signal receiving end of contactor I, contactor II, contactor III, breaker I and breaker II respectively
It is logical；The fault-signal output end of the motor is connected to the signal input part of PLC control cabinet, the control signal of PLC control cabinet
Output end is connected to the signal input part of high-tension switch cabinet.
The contactor I, contactor II and contactor III are all made of vacuum contactor.
The contactor I is high-pressure vacuum contactor.
The contactor II is inlet wire vacuum contactor.
The contactor III is outlet vacuum contactor.
The utility model having the beneficial effect that compared to the prior art
The frequency conversion of the utility model/power frequency automatic switchover technology frequency converter is by automatic fault detection, i.e., by frequency converter event
Hinder signal and PLC Background control program is accessed by signal wire, after PLC Background control program is connected to frequency converter failure signal, sends
Signal realizes that frequency conversion, power frequency are automatically switched, and reduces manpower waste.
The utility model transform dedusting fan as automatic one-to-one by manual one-to-one frequency conversion, power frequency startup mode and becomes
Frequently, power frequency startup system is realized and automatically switches to power frequency when frequency converter breaks down, safe cuts motor thus fast and reliable
Power frequency operation situation is shifted to, guarantees to switch under the non-stop-machine situation of equipment, shortens frequency conversion/power frequency switching time, reduces and become
Frequently/power frequency fugitive dust in handoff procedure guarantees that power frequency is opened in the dedusting fan short time, is met dust removing effects, is reached environmental protection and want
It asks.
The utility model guarantees the normal converting operation of dedusting fan and frequency conversion failure horse back automatically switching power frequency
Operation, it is ensured that dust removing effects, with meet the requirement of environmental protection." energy conservation ", " environmental protection " are realized in the case where self-protection function is improved
In the operational effect of one, it is made preferably to serve mineral hot furnace production.
The frequency converter of the utility model and switch are there are chain, when contactor is in variable mode, under power frequency mode
Contactor is necessary for off-state, and when contactor is in power frequency state and closes a floodgate, variable mode is necessary for off-state, this
It is chain mainly for guarantee existing equipment protection and safe operation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Appended drawing reference meaning is as follows: 1, high-voltage solid-state is soft opens cabinet；2, contactor I；3, high-tension switch cabinet；4, frequency converter；5,
Motor；7, breaker I；8, contactor II；9, contactor III；10, breaker II；11, PLC control cabinet；12, blower.
Specific embodiment
The utility model is described further with reference to the accompanying drawings and detailed description.
As shown in Figure 1, a kind of dedusting main air blower frequency conversion and power frequency automatic switching control equipment, including high-tension switch cabinet 3, frequency converter
4, motor 5 and the blower 12 connecting with motor further include power frequency switching device and automatic control device, the power frequency switching
Device, which includes that high-voltage solid-state is soft, opens cabinet 1 and contactor I 2, and the high-tension switch cabinet 3 opens cabinet 1 and change by the way that high-voltage solid-state is soft respectively
Frequency device 4 is connected to motor 5, and contactor I 2,3 He of high-tension switch cabinet is arranged in high-tension switch cabinet 3 and high-voltage solid-state soft open between cabinet 1
Breaker I 7 and contactor II 8 are set gradually between frequency converter 4, and contactor III 9 is set gradually between frequency converter 4 and motor 5
With breaker II 10, it is latched between contactor I 2 and contactor II 8, contactor III 9 for electric appliance, for preventing three while closing
It closes；The automatic control device includes PLC control cabinet 11, PLC control cabinet 11 respectively with high-tension switch cabinet 3, motor 5, frequency conversion
Device 4, contactor I 2, contactor II 8, contactor III 9, breaker I 7 and breaker II 10 connect, for controlling signal and feedback
The transmission of signal.
The fault-signal output end of the frequency converter 4 is connected to the signal input part of PLC control cabinet 11, PLC control cabinet 11
Control signal output respectively with contactor I 2, contactor II 8, contactor III 9, breaker I 7 and breaker II 10 signal
Receiving end is connected；The fault-signal output end of the motor 5 is connected to the signal input part of PLC control cabinet 11, PLC control
The control signal output of cabinet 11 is connected to the signal input part of high-tension switch cabinet 3.
The contactor I 2, contactor II 8 and contactor III 9 are all made of vacuum contactor.
The contactor I 2 is high-pressure vacuum contactor.
The contactor II 8 is inlet wire vacuum contactor.
The contactor III 9 is outlet vacuum contactor.
When blower normal operating condition, breaker I 7 and breaker II 10 close a floodgate, and contactor II 8 and contactor III 9 are closed,
Motor drives blower to operate normally under frequency conversion state.
When frequency converter breaks down, fault-signal is transmitted to PLC control cabinet 11 by the fault-signal output end of frequency converter
Signal input part is judged whether to need to switch power frequency by the background logic of PLC control cabinet 11, when switching to power frequency if necessary,
The control signal output of PLC control cabinet 11 will control signal be transmitted separately to contactor I 2, contactor II 8, contactor III 9,
The signal receiving end of breaker I 7 and breaker II 10 disconnects inlet wire vacuum contactor II 8 and outlet vacuum contactor III 9,
Inlet wire vacuum contactor II 8 and outlet vacuum contactor III 9 respectively to PLC control cabinet 11 send frequency conversion failure, stopping signal and
5 operation conditions signal of motor, PLC control cabinet 11 are believed after receiving 5 operation conditions signal of motor to the transmission control of contactor I 2
Number, contactor I 2 is closed a floodgate, the success of frequency converter automatically switching power frequency.
Claims (6)
1. a kind of dedusting main air blower frequency conversion and power frequency automatic switching control equipment, including high-tension switch cabinet, frequency converter, motor and with electricity
The blower of motivation connection, it is characterised in that: further include power frequency switching device and automatic control device, the power frequency switching device packet
Include that high-voltage solid-state is soft to open cabinet (1) and contactor I (2), the high-tension switch cabinet (3) respectively by high-voltage solid-state it is soft open cabinet (1) and
Frequency converter (4) is connected to motor (5), and contactor I (2) are arranged between cabinet (1) in high-tension switch cabinet (3) and high-voltage solid-state soft open,
Breaker I (7) and contactor II (8), frequency converter (4) and motor are set gradually between high-tension switch cabinet (3) and frequency converter (4)
(5) contactor III (9) and breaker II (10), contactor I (2) and contactor II (8), contactor III (9) are set gradually between
Between for electric appliance be latched, for preventing three to be closed at；The automatic control device includes PLC control cabinet (11), PLC control
Cabinet (11) respectively with high-tension switch cabinet (3), motor (5), frequency converter (4), contactor I (2), contactor II (8), contactor III
(9), breaker I (7) and breaker II (10) connection, for controlling the transmission of signal and feedback signal.
2. dedusting main air blower frequency conversion as described in claim 1 and power frequency automatic switching control equipment, it is characterised in that: the frequency converter
(4) fault-signal output end is connected to the signal input part of PLC control cabinet (11), and the control signal of PLC control cabinet (11) is defeated
Signal of the outlet respectively with contactor I (2), contactor II (8), contactor III (9), breaker I (7) and breaker II (10) connects
Receiving end is connected；The fault-signal output end of the motor (5) is connected to the signal input part of PLC control cabinet (11), PLC control
The control signal output of cabinet (11) processed is connected to the signal input part of high-tension switch cabinet (3).
3. dedusting main air blower frequency conversion as claimed in claim 1 or 2 and power frequency automatic switching control equipment, it is characterised in that: described to connect
Tentaculum I (2), contactor II (8) and contactor III (9) are all made of vacuum contactor.
4. dedusting main air blower frequency conversion as claimed in claim 3 and power frequency automatic switching control equipment, it is characterised in that: the contactor
I (2) are high-pressure vacuum contactor.
5. dedusting main air blower frequency conversion as claimed in claim 4 and power frequency automatic switching control equipment, it is characterised in that: the contactor
II (8) are inlet wire vacuum contactor.
6. dedusting main air blower frequency conversion as claimed in claim 5 and power frequency automatic switching control equipment, it is characterised in that: the contactor
III (9) are outlet vacuum contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821762215.7U CN209016959U (en) | 2018-10-29 | 2018-10-29 | A kind of dedusting main air blower frequency conversion and power frequency automatic switching control equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821762215.7U CN209016959U (en) | 2018-10-29 | 2018-10-29 | A kind of dedusting main air blower frequency conversion and power frequency automatic switching control equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209016959U true CN209016959U (en) | 2019-06-21 |
Family
ID=66840541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821762215.7U Expired - Fee Related CN209016959U (en) | 2018-10-29 | 2018-10-29 | A kind of dedusting main air blower frequency conversion and power frequency automatic switching control equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209016959U (en) |
-
2018
- 2018-10-29 CN CN201821762215.7U patent/CN209016959U/en not_active Expired - Fee Related
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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: 20190621 Termination date: 20191029 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |