CN105782102A - Control method for soft starting of fan - Google Patents
Control method for soft starting of fan Download PDFInfo
- Publication number
- CN105782102A CN105782102A CN201610301887.7A CN201610301887A CN105782102A CN 105782102 A CN105782102 A CN 105782102A CN 201610301887 A CN201610301887 A CN 201610301887A CN 105782102 A CN105782102 A CN 105782102A
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- CN
- China
- Prior art keywords
- fan
- catalyst
- control
- soft
- soft initiator
- 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.)
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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
Abstract
The invention discloses a control method for soft starting of a fan, and relates to the technical field of electrical equipment manufacturing. The method comprises the steps that when manual control is required, a shift switch is turned to a manual shift gear, a start button is pressed, a manual control circuit is energized, the fan is started, after internal timing of a soft starter, a bypass control circuit is energized, and the fan is shifted to bypass operation; and when automatic control is required, the shift switch is turned to an automatic gear, when a central control room sends a fan operation instruction, a relay is closed, an automatic control circuit is energized, the fan is started, after internal timing of the soft starter, the bypass control circuit is energized, and the fan is shifted to bypass operation. According to control method for soft starting of the fan, the problem that a relatively high starting current generates serious disturbance for a power grid can be solved.
Description
Technical field
The present invention relates to electrical equipment manufacturing technology field；Especially a kind of control circuit for controlling blower fan.
Background technology
Blower fan is widely used, for instance the application of fire-fighting equipment etc. is a lot, if general blower fan directly initiates, starting current is up to 4～8 times of rated current, and electrical network certainly will be produced severe jamming by bigger starting current.
Summary of the invention
It is an object of the invention to provide a kind of blower fan soft start control method, it can solve the problem that electrical network is produced severe jamming by bigger starting current.
nullIn order to solve the problems referred to above，The technical solution used in the present invention is: this blower fan soft start control method，Blower fan soft start-up control device is adopted to realize，Described blower fan soft start-up control device includes control chamber，First catalyst is installed in the case of described control chamber、Second catalyst、Thermorelay and soft initiator，The chamber door of described control chamber is provided with the switching switch for automatic/hand switching、Stop button and startup button，Described switching switch、Stop button、Start button、First catalyst、Thermorelay and soft initiator series connection form manual control circuit，Described startup button and described first catalyst parallel connection form holding circuit，Described switching switch、Stop button、Start button、First catalyst、Second catalyst and soft initiator series connection form bypass control circuit，Described switching switch、Relay、First catalyst、Thermorelay and soft initiator series connection form automatic control circuit，With described first catalyst after described soft initiator the 8th foot and the 9th foot parallel connection、The series connection of soft initiator the 7th foot forms soft initiator signal circuit，Described soft initiator the 1st foot and the 2nd foot are connected with the two of power supply respectively；
Its implementation is: when needs Non-follow control, gets to manual by described switching switch, presses described startup button, described manual control circuit must electrically connect, fan starting, after the internal clocking of described soft initiator, described bypass control circuit must electrically connect, and blower fan proceeds to bypass and runs；When needs automatically control, described switching switch is got to automatic transmission, when Central Control Room sends fan operation instruction, described relay closes, described automatic control electric rood electrically connects, fan starting, after the internal clocking of described soft initiator, described bypass control circuit must electrically connect, and blower fan proceeds to bypass and runs.
In technique scheme, more specifically scheme is it may also is that be also equipped with green indicating lamp and red led on described chamber door, described first catalyst is connected with green indicating lamp and is formed fan operation indicating circuit, and described thermorelay is connected with red led and formed fan trouble indicating circuit.
Owing to have employed technique scheme, the present invention compared with prior art, has the beneficial effect that owing to adopting soft initiator, when the motor is energized, reduces starting current, so electrical network will not be produced interference.
Accompanying drawing explanation
Fig. 1 is the control chamber front view of the present invention.
Fig. 2 is principles of the invention schematic diagram.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described:
nullBlower fan soft start control method shown in Fig. 1 and Fig. 2，Including control chamber，First catalyst KM1 is installed in the case of control chamber、Second catalyst KM2、Thermorelay FR and soft initiator RQ，The chamber door of control chamber is provided with the switching switch SA for automatic/hand switching、Stop button SB2、Start button SB1、Green indicating lamp HG and red led HR，Switching switch SA、Stop button SB2、Start button SB1、First catalyst KM1、Thermorelay FR and soft initiator RQ series connection forms manual control circuit，Start button SB1 and the first catalyst KM1 parallel connection forms holding circuit，Switching switch SA、Stop button SB2、Start button SB1、First catalyst KM1、Second catalyst KM2 and soft initiator RQ series connection forms bypass control circuit，Switching switch SA、Relay K A、First catalyst KM1、Thermorelay FR and soft initiator RQ series connection forms automatic control circuit，With the first catalyst KM1 after soft initiator RQ the 8th foot and the 9th foot parallel connection、The series connection of soft initiator RQ the 7th foot forms soft initiator signal circuit，Soft initiator RQ the 1st foot and the 2nd foot are connected with the two of power supply respectively.First catalyst KM1 and green indicating lamp HG connects and forms fan operation indicating circuit, and thermorelay FR and red led HR connects and forms fan trouble indicating circuit.
During work, when needs Non-follow control, switching being switched SA and gets to manual, press startup button SB1, manual control circuit must electrically connect, fan starting, after the internal clocking of soft initiator RQ, bypass control circuit must electrically connect, and blower fan proceeds to bypass and runs, now fan operation indicating circuit obtains electric, and green indicating lamp HG lights；When having fault to occur in fan starting process, thermorelay FR disconnects manual control circuit, is also turned on fan trouble indicating circuit, and red led HR lights, and indicates that fault occurs, and reminds staff to process.When needs automatically control, switching is switched SA and gets to automatic transmission, when Central Control Room sends fan operation instruction, relay K A closes, and automatic control electric rood electrically connects, fan starting, after the internal clocking of soft initiator RQ, bypass control circuit must electrically connect, and blower fan proceeds to bypass and runs, now fan operation indicating circuit obtains electric, and green indicating lamp HG lights；When having fault to occur in fan starting process, thermorelay FR disconnects automatic control circuit, is also turned on fan trouble indicating circuit, and red led HR lights, and indicates that fault occurs, and reminds staff to process.
Claims (2)
- null1. a blower fan soft start control method，It is characterized in that: adopt blower fan soft start-up control device to realize，Described blower fan soft start-up control device includes control chamber，First catalyst (KM1) is installed in the case of described control chamber、Second catalyst (KM2)、Thermorelay (FR) and soft initiator (RQ)，The chamber door of described control chamber is provided with switching switch (SA) for automatic/hand switching、Stop button (SB2) and startup button (SB1)，Described switching switch (SA)、Stop button (SB2)、Start button (SB1)、First catalyst (KM1)、Thermorelay (FR) and soft initiator (RQ) series connection form manual control circuit，Described startup button (SB1) and described first catalyst (KM1) formation in parallel holding circuit，Described switching switch (SA)、Stop button (SB2)、Start button (SB1)、First catalyst (KM1)、Second catalyst (KM2) and soft initiator (RQ) series connection form bypass control circuit，Described switching switch (SA)、Relay (KA)、First catalyst (KM1)、Thermorelay (FR) and soft initiator (RQ) series connection form automatic control circuit，With described first catalyst (KM1) after described soft initiator (RQ) the 8th foot and the 9th foot parallel connection、The series connection of soft initiator (RQ) the 7th foot forms soft initiator signal circuit，Described soft initiator (RQ) the 1st foot and the 2nd foot are connected with the two of power supply respectively；Its implementation is: when needs Non-follow control, described switching switch (SA) is got to manual, press described startup button (SB1), described manual control circuit must electrically connect, fan starting, after the internal clocking of described soft initiator (RQ), described bypass control circuit must electrically connect, and blower fan proceeds to bypass and runs；When needs automatically control, described switching switch (SA) is got to automatic transmission, when Central Control Room sends fan operation instruction, described relay (KA) closes, described automatic control electric rood electrically connects, fan starting, after the internal clocking of described soft initiator (RQ), described bypass control circuit must electrically connect, and blower fan proceeds to bypass and runs.
- 2. blower fan soft start control method according to claim 1, it is characterized in that: described chamber door is also equipped with green indicating lamp (HG) and red led (HR), described first catalyst (KM1) is connected with green indicating lamp (HG) and is formed fan operation indicating circuit, and described thermorelay (FR) is connected with red led (HR) and formed fan trouble indicating circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610301887.7A CN105782102A (en) | 2016-05-09 | 2016-05-09 | Control method for soft starting of fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610301887.7A CN105782102A (en) | 2016-05-09 | 2016-05-09 | Control method for soft starting of fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105782102A true CN105782102A (en) | 2016-07-20 |
Family
ID=56401090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610301887.7A Pending CN105782102A (en) | 2016-05-09 | 2016-05-09 | Control method for soft starting of fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105782102A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07287625A (en) * | 1994-04-18 | 1995-10-31 | Fujitsu Ltd | Device with cooling fan and fan controlling method |
| JP3037311B1 (en) * | 1999-01-13 | 2000-04-24 | 群馬日本電気株式会社 | Fan drive circuit |
| CN101882905A (en) * | 2010-06-08 | 2010-11-10 | 上海隧道工程股份有限公司 | Wireless remote soft start electrical cabinet |
| CN202435320U (en) * | 2011-09-28 | 2012-09-12 | 四川瑞能硅材料有限公司 | Protection circuit of soft starter |
| CN203104342U (en) * | 2013-02-05 | 2013-07-31 | 玉溪大红山矿业有限公司 | High-efficiency starting device being capable of effectively protecting motor windings |
| CN203983963U (en) * | 2014-07-14 | 2014-12-03 | 于波涛 | Motor security of operation protective circuit |
| CN104696254A (en) * | 2015-03-06 | 2015-06-10 | 徐家成 | Air feeder control method |
-
2016
- 2016-05-09 CN CN201610301887.7A patent/CN105782102A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07287625A (en) * | 1994-04-18 | 1995-10-31 | Fujitsu Ltd | Device with cooling fan and fan controlling method |
| JP3037311B1 (en) * | 1999-01-13 | 2000-04-24 | 群馬日本電気株式会社 | Fan drive circuit |
| CN101882905A (en) * | 2010-06-08 | 2010-11-10 | 上海隧道工程股份有限公司 | Wireless remote soft start electrical cabinet |
| CN202435320U (en) * | 2011-09-28 | 2012-09-12 | 四川瑞能硅材料有限公司 | Protection circuit of soft starter |
| CN203104342U (en) * | 2013-02-05 | 2013-07-31 | 玉溪大红山矿业有限公司 | High-efficiency starting device being capable of effectively protecting motor windings |
| CN203983963U (en) * | 2014-07-14 | 2014-12-03 | 于波涛 | Motor security of operation protective circuit |
| CN104696254A (en) * | 2015-03-06 | 2015-06-10 | 徐家成 | Air feeder control method |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160720 |