CN104747486A - Control circuit for air feeder - Google Patents
Control circuit for air feeder Download PDFInfo
- Publication number
- CN104747486A CN104747486A CN201510099469.XA CN201510099469A CN104747486A CN 104747486 A CN104747486 A CN 104747486A CN 201510099469 A CN201510099469 A CN 201510099469A CN 104747486 A CN104747486 A CN 104747486A
- Authority
- CN
- China
- Prior art keywords
- circuit
- contactor
- starting
- series
- control circuit
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/50—Control logic embodiments
- F05D2270/52—Control logic embodiments by electrical means, e.g. relays or switches
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The invention discloses a control circuit for an air feeder and relates to the technical field of electrical control equipment manufacturing. The control circuit comprises a star-delta starting circuit composed of a main contactor, an operating contactor, a starting contactor and a time relay and further comprises a PLC, a transformer and a change-over switch, wherein the PLC and a middle relay are connected in series so that an automatic control circuit can be formed, the change-over switch, a stop button, a starting button and the star-delta starting circuit are connected in series so that a manual starting circuit can be formed, and the change-over switch, the middle relay and the star-delta starting circuit are connected in series so that an automatic starting circuit can be formed. The control circuit can become an alternative scheme of a current control circuit for the air feeder.
Description
Technical field
The present invention relates to electrical control equipment manufacturing technology field, especially a kind of gas fan control wiring for gas fan.
Background technique
The use of gas fan is a lot, such as, at the stair case of tall building, when there is fire alarm, fire bed and adjacent upper and lower layers forced draft machine is opened, conveying fresh air also stops the fireproof door of stair case to open to stair case, stop flue gas to enter stair case, be smothered by smoke when preventing people from escaping.Another is the air needed for the burning of supply boiler oil, and the effect of gas fan is in burner hearth, provide the Secondary Air needed for burning and the drying wind needed for coal pulverizer.The control wiring of current gas fan is a lot, respectively has pluses and minuses.
Summary of the invention
The object of this invention is to provide a kind of gas fan control wiring, it can become a kind of replacement scheme of current gas fan control wiring.
In order to solve the problem, the technical solution used in the present invention is: this gas fan control wiring, comprises by main contactor, runs contactor, the star delta starting circuit that starting contactor and the time relay are formed; Also comprise PLC; Transformer, described PLC and auxiliary reclay series connection form automatic control circuit; Throw over switch, stop button, starting button and described star delta starting circuit connected in series form manual starting circuit; Described throw over switch, auxiliary reclay, star delta starting circuit connected in series forms automatic start-up circuit.
In technique scheme, more specifically scheme can also be: red led, and main contactor and the series connection of operation contactor are formed and run indicating circuit; White indicating light, conversion contactor and the series connection of operation contactor form conversion indicating circuit; Green indicating lamp and main contactor series connection are formed and stop indicating circuit.
Owing to have employed technique scheme, compared with prior art, the beneficial effect had is in the present invention: owing to have employed PLC as the element automatically controlled, so control more reliable.
Accompanying drawing explanation
Fig. 1 is electronic schematic diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described: the gas fan control wiring shown in Fig. 1, comprises by main contactor KM1, runs contactor KM2, the star delta starting circuit that starting contactor KM3 and time relay KT is formed; Transformer BK, PLC KP and auxiliary reclay KA connect and form automatic control circuit; Throw over switch SA, stop button 1SB, starting button 2SB and star delta starting circuit connected in series form manual starting circuit; Throw over switch SA, auxiliary reclay KA, star delta starting circuit connected in series forms automatic start-up circuit; Red led HD, main contactor KM1 and operation contactor KM2 series connection are formed and run indicating circuit; White indicating light WD, starting contactor KM3 and operation contactor KM2 series connection form conversion indicating circuit; Green indicating lamp LD and main contactor KM1 connects to be formed and stops indicating circuit.
During normal work, throw over switch SA is got to automatic catch, and circuit is standby; When PLC KP receives starting order, the output contact of PLC KP closes, the automatic control circuit that PLC KP and auxiliary reclay KA series connection is formed makes auxiliary reclay KA coil energized action, the normal opened contact of auxiliary reclay KA closes, throw over switch SA, auxiliary reclay KA, star delta starting circuit connected in series forms automatic start-up circuit and obtains electric, star delta starting circuit obtains electric starting gas fan motor, now green indicating lamp LD and main contactor KM1 connects to be formed and stops indicating circuit dead electricity, and green indicating lamp LD extinguishes; Through time relay KT time delay after 5 ~ 8 seconds, star delta starting circuit forwards operation to, and in the moment of star delta starting circuit conversion, white indicating light WD glimmers, and represent the success of star delta starting circuit conversion, gas fan motor enters running state; After gas fan motor enters running state, the operation indicating circuit that red led HD, main contactor KM1 and operation contactor KM2 series connection are formed obtains electric, and red led HD lights.If want out-of-blast dynamo-electric machine, throw over switch SA is got to retaining catch, and gas fan motor quits work.
When automatic control circuit has fault or need Non-follow control, throw over switch SA is got to manual gear, press starting button 2SB, throw over switch SA, the manual starting circuit that stop button 1SB, starting button 2SB and star delta starting circuit connected in series are formed obtains electric, and star delta starting circuit obtains electric starting gas fan motor, now green indicating lamp LD and main contactor KM1 connects to be formed and stops indicating circuit dead electricity, and green indicating lamp LD extinguishes; Through time relay KT time delay after 5 ~ 8 seconds, star delta starting circuit forwards operation to, and in the moment of star delta starting circuit conversion, white indicating light WD glimmers, and represent the success of star delta starting circuit conversion, gas fan motor enters running state; After gas fan motor enters running state, the operation indicating circuit that red led HD, main contactor KM1 and operation contactor KM2 series connection are formed obtains electric, and red led HD lights.If want out-of-blast dynamo-electric machine, press stop button 1SB, gas fan motor quits work.
Claims (2)
1. a gas fan control wiring, comprises by main contactor (KM1), runs contactor (KM2), the star delta starting circuit that starting contactor (KM3) and the time relay (KT) are formed; It is characterized in that: also comprise PLC (KP); Transformer (BK), described PLC (KP) and auxiliary reclay (KA) series connection form automatic control circuit; Throw over switch (SA), stop button (1SB), starting button (2SB) and described star delta starting circuit connected in series form manual starting circuit; Described throw over switch (SA), auxiliary reclay (KA), star delta starting circuit connected in series forms automatic start-up circuit.
2. gas fan control wiring according to claim 1, is characterized in that: red led (HD), and described main contactor (KM1) and described operation contactor (KM2) series connection are formed and run indicating circuit; White indicating light (WD), described starting contactor (KM3) and described operation contactor (KM2) series connection form conversion indicating circuit; Green indicating lamp (LD) and described main contactor (KM1) series connection are formed and stop indicating circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510099469.XA CN104747486A (en) | 2015-03-06 | 2015-03-06 | Control circuit for air feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510099469.XA CN104747486A (en) | 2015-03-06 | 2015-03-06 | Control circuit for air feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104747486A true CN104747486A (en) | 2015-07-01 |
Family
ID=53587624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510099469.XA Pending CN104747486A (en) | 2015-03-06 | 2015-03-06 | Control circuit for air feeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104747486A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4434934A (en) * | 1981-06-15 | 1984-03-06 | Klockner-Humboldt-Deutz Ag | System for heating the operators cabin of a machine powered by an internal combustion engine |
| CN86207281U (en) * | 1986-09-27 | 1988-04-13 | 沈炳熊 | Multi-function star/delta controller for complete sets of electric motor |
| CN2817139Y (en) * | 2004-12-13 | 2006-09-13 | 珠海泰坦能源电子技术有限公司 | Contactless transformer air-cooling control device |
| JP2006246631A (en) * | 2005-03-03 | 2006-09-14 | Shin Caterpillar Mitsubishi Ltd | Control circuit of electric hydraulic work machine |
| CN201038736Y (en) * | 2007-05-18 | 2008-03-19 | 范永涛 | Motor multifunctional energy-saving intelligent protection and control cabinet |
| CN201242245Y (en) * | 2008-07-15 | 2009-05-20 | 吉林省宝鑫建筑装饰工程有限责任公司 | Intelligent ventilation controller |
| CN201312283Y (en) * | 2008-12-03 | 2009-09-16 | 苏州汉风科技发展有限公司 | High-power intelligent electricity economizer start control device |
| CN202334404U (en) * | 2011-11-23 | 2012-07-11 | 永贵能源开发有限责任公司 | Star type triangular starter of high-power motor |
-
2015
- 2015-03-06 CN CN201510099469.XA patent/CN104747486A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4434934A (en) * | 1981-06-15 | 1984-03-06 | Klockner-Humboldt-Deutz Ag | System for heating the operators cabin of a machine powered by an internal combustion engine |
| CN86207281U (en) * | 1986-09-27 | 1988-04-13 | 沈炳熊 | Multi-function star/delta controller for complete sets of electric motor |
| CN2817139Y (en) * | 2004-12-13 | 2006-09-13 | 珠海泰坦能源电子技术有限公司 | Contactless transformer air-cooling control device |
| JP2006246631A (en) * | 2005-03-03 | 2006-09-14 | Shin Caterpillar Mitsubishi Ltd | Control circuit of electric hydraulic work machine |
| CN201038736Y (en) * | 2007-05-18 | 2008-03-19 | 范永涛 | Motor multifunctional energy-saving intelligent protection and control cabinet |
| CN201242245Y (en) * | 2008-07-15 | 2009-05-20 | 吉林省宝鑫建筑装饰工程有限责任公司 | Intelligent ventilation controller |
| CN201312283Y (en) * | 2008-12-03 | 2009-09-16 | 苏州汉风科技发展有限公司 | High-power intelligent electricity economizer start control device |
| CN202334404U (en) * | 2011-11-23 | 2012-07-11 | 永贵能源开发有限责任公司 | Star type triangular starter of high-power motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150701 |
|
| WD01 | Invention patent application deemed withdrawn after publication |