CN203404114U - Curing barn fan directional operation control box controlled by pressure transmitter - Google Patents
Curing barn fan directional operation control box controlled by pressure transmitter Download PDFInfo
- Publication number
- CN203404114U CN203404114U CN201320426475.8U CN201320426475U CN203404114U CN 203404114 U CN203404114 U CN 203404114U CN 201320426475 U CN201320426475 U CN 201320426475U CN 203404114 U CN203404114 U CN 203404114U
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- cpu222
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- pressure transmitter
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- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
A curing barn fan directional operation control box controlled by a pressure transmitter comprises a box body and is characterized in that a control circuit of the curing barn fan directional operation control box is formed by the pressure transmitter, a contactor, a relay, a programmable logic controller, an analog quantity processing module and buttons. On the basis of the principle of motor forward and reverse rotating, no matter how a three-phase four-wire power supply inlet wire phase or a motor wiring changes, a fan can be controlled to always rotate directionally in the same direction through program control, so the normal running of production is guaranteed. Meanwhile, the curing barn fan directional operation control box is simple in structure and safe and convenient to use.
Description
Technical field
The utility model relates to a kind of motor control assembly, particularly a kind of barn blower fan direction operation control box that adopts pressure transmitter to control.
Background technique
The blower of intensive curing barn using in during production process of flue-cured tobacco turns to and does not allow to change, but sometimes unconsciously electric power incoming line phase place or motor wiring are changed unavoidably and motor is changed, turn to, cause the air circulation circuit of barn inside to change, have a strong impact on the baking quality of tobacco leaf.
Summary of the invention
The purpose of this utility model is in order to solve the problems of the technologies described above, and a kind of barn blower fan direction operation control box of not controlling because of the employing pressure transmitter of electric power incoming line phase place or motor wiring change break-in running is provided.
For achieving the above object, the technical solution that the utility model adopts is: a kind of barn blower fan direction operation control box that adopts pressure transmitter to control, comprise casing, and it is characterized in that its control circuit is by pressure transmitter YB, contactor KM1, contactor KM2, relay K A1, relay K A2, programmable controller CPU222, analog amount puocessing module EM235, start button S2, stop button S1, thermorelay KR forms, wherein input power one phase line meet CPU222 connecting end L, 1L and KA1 normally opened contact KA1-1, KM2 normally-closed contact KM2-1, series arm one end of KM1 coil, KA2 normally opened contact KA2-1, KM1 normally-closed contact KM1-1, series arm one end of KM2 coil, the other end of two series arms also meets CPU222 connecting end N, KR normally-closed contact KR-1, KA1, KA2 coil one end, the KR-1 the other end connects zero-power line N, KA1, the KA2 coil the other end connects respectively CPU222 connecting end Q0, Q1, input power triple line A, B, C is connected in series tri-groups of normally opened contact KM1-2 of KM1 successively, after KR coil, connect motor M tri-winding input ends, tri-groups of normally opened contact KM2-2 one end of KM2 respectively with KM1-2 before input power triple line A, B, C connects, and the KM2-2 the other end connects respectively the input power triple line C between KM1-2 and KR coil, B, A, S1, S2 one end connects respectively CPU222 connecting end 10, 11, S1, the S2 the other end also meets CPU222 connecting end L+, EM235 connecting end L+, CPU222 connecting end 1M, M also meets EM235 connecting end M, and YB electric current output plus terminal also meets EM235 connecting end RA, A+, YB electric current output negative terminal connects EM235 connecting end A-, and YB is arranged in the airintake wind-tunnel of barn blower fan, and other element is arranged in casing, on panel, and draw each terminal.
The utility model, owing to adopting above design, utilizes motor positive and inverse principle, by program control, no matter how three-phase four-wire power phase entry or motor wiring change, all can control blower fan same direction direction operation all the time, guarantees to produce and normally carries out.Simple in structure, use safety, convenient.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model electrical schematic diagram.
Embodiment
Now illustrated embodiment is made detailed description to the utility model by reference to the accompanying drawings.
As shown in Figure 2, a kind of barn blower fan direction operation control box that adopts pressure transmitter to control, comprises casing, and its control circuit is by pressure transmitter YB, contactor KM1, contactor KM2, relay K A1, relay K A2, programmable controller CPU222, analog amount puocessing module EM235, start button S2, stop button S1, thermorelay KR forms, wherein after input power phase line C serial connection fus FU and meet CPU222 connecting end L, 1L and KA1 normally opened contact KA1-1, KM2 normally-closed contact KM2-1, series arm one end of KM1 coil, KA2 normally opened contact KA2-1, KM1 normally-closed contact KM1-1, series arm one end of KM2 coil, the other end of two series arms also meets CPU222 connecting end N, KR normally-closed contact KR-1, KA1, KA2 coil one end, the KR-1 the other end connects zero-power line N, KA1, the KA2 coil the other end connects respectively CPU222 connecting end Q0, Q1, input power triple line A, B, C is connected in series tri-groups of normally opened contact KM1-2 of KM1 successively, after KR coil, connect motor M tri-winding input ends, tri-groups of normally opened contact KM2-2 one end of KM2 respectively with KM1-2 before input power triple line A, B, C connects, and the KM2-2 the other end connects respectively the input power triple line C between KM1-2 and KR coil, B, A, S1, S2 one end connects respectively CPU222 connecting end 10, 11, S1, the S2 the other end also meets CPU222 connecting end L+, EM235 connecting end L+, CPU222 connecting end 1M, M also meets EM235 connecting end M, and YB electric current output plus terminal also meets EM235 connecting end RA, A+, YB electric current output negative terminal connects EM235 connecting end A-, and YB is arranged in the airintake wind-tunnel of barn blower fan, and other element is arranged in casing, on panel, and draw each terminal.
The working principle of this direction operation control box is as follows: as shown in Figure 2, three phase mains closes, when blower fan uses as induced draught fan, suction port can keep certain negative pressure, by program setting, presses start button S2, KA1 adhesive, start KM1, when YB output signal being detected lower than setting value, KA1 continues adhesive, blower fan normally moves, when YB output signal is during higher than setting value, KA1 discharges, KA2 adhesive, KM2 adhesive, when YB output signal being detected lower than setting value, KA2 keeps adhesive, guarantees that equally induced draught fan normally moves.
Claims (1)
1. a barn blower fan direction operation control box that adopts pressure transmitter to control, comprises casing, it is characterized in that its control circuit is by pressure transmitter YB, contactor KM1, contactor KM2, relay K A1, relay K A2, programmable controller CPU222, analog amount puocessing module EM235, start button S2, stop button S1, thermorelay KR forms, wherein input power one phase line meet CPU222 connecting end L, 1L and KA1 normally opened contact KA1-1, KM2 normally-closed contact KM2-1, series arm one end of KM1 coil, KA2 normally opened contact KA2-1, KM1 normally-closed contact KM1-1, series arm one end of KM2 coil, the other end of two series arms also meets CPU222 connecting end N, KR normally-closed contact KR-1, KA1, KA2 coil one end, the KR-1 the other end connects zero-power line N, KA1, the KA2 coil the other end connects respectively CPU222 connecting end Q0, Q1, input power triple line A, B, C is connected in series tri-groups of normally opened contact KM1-2 of KM1 successively, after KR coil, connect motor M tri-winding input ends, tri-groups of normally opened contact KM2-2 one end of KM2 respectively with KM1-2 before input power triple line A, B, C connects, and the KM2-2 the other end connects respectively the input power triple line C between KM1-2 and KR coil, B, A, S1, S2 one end connects respectively CPU222 connecting end 10, 11, S1, the S2 the other end also meets CPU222 connecting end L+, EM235 connecting end L+, CPU222 connecting end 1M, M also meets EM235 connecting end M, and YB electric current output plus terminal also meets EM235 connecting end RA, A+, YB electric current output negative terminal connects EM235 connecting end A-, and YB is arranged in the airintake wind-tunnel of barn blower fan, and other element is arranged in casing, on panel, and draw each terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320426475.8U CN203404114U (en) | 2013-07-18 | 2013-07-18 | Curing barn fan directional operation control box controlled by pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320426475.8U CN203404114U (en) | 2013-07-18 | 2013-07-18 | Curing barn fan directional operation control box controlled by pressure transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203404114U true CN203404114U (en) | 2014-01-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320426475.8U Expired - Fee Related CN203404114U (en) | 2013-07-18 | 2013-07-18 | Curing barn fan directional operation control box controlled by pressure transmitter |
Country Status (1)
| Country | Link |
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| CN (1) | CN203404114U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107968395A (en) * | 2017-11-10 | 2018-04-27 | 长沙远大住宅工业集团股份有限公司 | A kind of prefabricated components assembling die power supply unit and method |
-
2013
- 2013-07-18 CN CN201320426475.8U patent/CN203404114U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107968395A (en) * | 2017-11-10 | 2018-04-27 | 长沙远大住宅工业集团股份有限公司 | A kind of prefabricated components assembling die power supply unit and method |
| CN107968395B (en) * | 2017-11-10 | 2023-10-03 | 长沙远大住宅工业集团股份有限公司 | Power supply device and method for prefabricated part combined die |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20140718 |
|
| EXPY | Termination of patent right or utility model |