CN107528501A - Paper machine coating cycle hot blast centrifugal blower control device - Google Patents
Paper machine coating cycle hot blast centrifugal blower control device Download PDFInfo
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- CN107528501A CN107528501A CN201710602865.9A CN201710602865A CN107528501A CN 107528501 A CN107528501 A CN 107528501A CN 201710602865 A CN201710602865 A CN 201710602865A CN 107528501 A CN107528501 A CN 107528501A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/26—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
A kind of paper machine coating cycle hot blast centrifugal blower control device,Including external power source,Threephase asynchronous machine,Single-phase air switch Q and control module,The threephase asynchronous machine and control module are connected on external power source,The control module is provided with input,The input of the control module is connected on external power source by single-phase air switch Q,Control and electrothermal relay KH1 and time relay KT1 is set on module,And time relay KT1 on-delay break contact KT1 1 is attempted by the electrothermal relay KH1 normally-closed contacts KH1 1 of motor control loop,Logical overload thermal relay KH1 protections value is to operation motor input protective effect,And then realize coating cycle hot blast centrifugal blower after paper is coated and can come into operation in time hot-air seasoning,Not only prevent finished paper drop etc. caused by conventional blower fan has influence on paper quality because that can not come into operation in time to occur,And also avoid the motor short time start repeatedly burn out accident appearance,And then favourable guarantee paper machine normally produces.
Description
Technical field
The present invention relates to a kind of centrifugal blower to control control device, more particularly to a kind of paper machine coating cycle hot blast centrifugation wind
Machine control device.
Background technology
It is a kind of high-grade printing to be coated with blank, and it is to apply to coat on body paper, and the paper made has good
Optical property and printing performance etc..Precoating, middle painting will be passed through by being coated with the production process of blank, and the back of the body applies, and face applies this four coatings
Machine, body paper often will have more coating cycle hot blast centrifugal blower bellows to coat to paper into hot blast baking by a coating machine
It is dry, if paper coat after coating cycle hot blast centrifugal blower can not timely hot-air seasoning, idle guide rolls can stick coating have influence on
Paper quality causes finished paper drop etc. to occur, and thus produces a large amount of substandard products finished papers.
In existing control technology, when coating cycle hot blast centrifugal blower motor directly initiates, because of motor overload thermoelectricity device
Protection value, which occurs now and then, can not avoid producing electric current peak-peak when motor directly initiates, and frequently jump electrothermal relay protection, to lead to
Artificial hand-reset is crossed, very inconvenient, there is also the motor short time starts and cause coil to burn out accident repeatedly.If heat
Relay protection value be transferred to it is excessive, electrothermal relay protection value to day-to-day operation motor overload protection does not play in time protection make
With protection value is invalid will to be caused to burn out risk to motor, and fault spread more has influence on paper quality and causes more finished papers
Drop.
The content of the invention
In view of the deficienciess of the prior art, the present invention provides a kind of new paper machine coating cycle hot blast centrifugal blower control
Device processed.
The technical scheme is that：
A kind of paper machine coating cycle hot blast centrifugal blower control device, it is characterised in that：Including external power source, phase asynchronous
Motor, single-phase air switch Q control modules, the threephase asynchronous machine and control module are connected on external power source, the control
Molding group is provided with input, and the input of the control module is connected on external power source by single-phase air switch Q, the control
Molding group include electrothermal relay KH1, the time relay (KT1), enabling signal input point DCS, auxiliary reclay (KA1,
KA2), A.C. contactor (KM1), A.C. contactor KM1 auxiliary contact (KM1-1, KM1-2, KM1-3, KM1-4), change-over switch
SA, start-stop button (SBS, SBF)；The A.C. contactor auxiliary contact KM1-2 and run indicator HW1 is serially connected, series connection
A.C. contactor auxiliary contact KM1-2 and indicator lamp HW1 connect input and connecting to neutral line respectively afterwards；The time relay KT1 and
A.C. contactor auxiliary contact KM1-2 output ends and connecting to neutral line N, the enabling signal input are connect after indicator lamp HW1 parallel connections respectively
Point DCS is linked into input and connecting to neutral line N after being connected with auxiliary reclay KA1 coils；The change-over switch is provided with a, b, c, d tetra-
Individual contact, a and b contact are that one group of M, c and d contact are one group of A, and change-over switch can be converted to automatic control state A groups
With manual state of a control M groups, passage time relay after a contacts of the change-over switch SA are connected with change-over switch SA c contacts
Device KT1-1 delay break contact and KH1 normally-closed contact KH1-1 are parallel with one another and access input, the change-over switch SA
D interfaces by auxiliary reclay KA2 coils connection be followed by zero line N, the b interfaces of the change-over switch SA with start and stop by opening
SBS normally-closed contacts, start stop switch SBF normally opened contacts, A.C. contactor KM1 coils is closed to be sequentially connected in series and be followed by zero line N.The friendship
Flow contactor KM1 auxiliary contact KM1-4 and parallel with one another self-locking action of start stop switch SBF opened points, the change-over switch
SA d interfaces are by connecting and being followed by zero line N with auxiliary reclay KA1 normally opened contacts KA1-1, A.C. contactor KM1 coils
On, described A.C. contactor KM1 coils one end is connected to start stop switch SBF opened points output end and A.C. contactor KM1 is normally opened
On circuit between the normally opened auxiliary contact KA1-1 output ends of auxiliary contact KM1-4 output ends, auxiliary reclay KA1, the exchange
The other end zero line N of contactor KM1 coils.
Further, in addition to current transformer (TAa, TAc), the external power source, circuit breaker Q M, A.C. contactor
KM1 major loops contact KM1-1 is sequentially connected in series.
Further, terminals U, W power line of the threephase asynchronous machine respectively by current transformer (TAa,
TAc) it is connected on A.C. contactor KM1 major loops contact KM1-1, terminals and heat on the current transformer (TAa, TAc)
Relay KH1 main contacts connects, composition electric prospection loop；The terminals V of the threephase asynchronous machine is directly connected in exchange
On contactor KM1 major loops contact KM1-1, terminals U, W of the threephase asynchronous machine also by current transformer (TAa,
TAc) it is connected with A.C. contactor KM1 major loops contact KM1-1.
Further, the control module also includes indicator lamp HG1, the A.C. contactor auxiliary normally-closed contact KM1-3
It is serially connected with stopping indicator lamp HG1, A.C. contactor auxiliary contact KM1-3 and indicator lamp HG1 connect input respectively after series connection
With connecting to neutral line N.
The beneficial effect of paper machine coating cycle hot blast centrifugal blower control device of the present invention is：By setting electrothermal relay
KH1 and time relay KT1, and time relay KT1 on-delay break contact is attempted by the heat of motor control loop
On relay KH1 normally-closed contact KH1-1, lead to overload thermal relay KH1 and set protection value to make operation motor input protection
With, and then realize coating cycle hot blast centrifugal blower after paper is coated and can come into operation in time hot-air seasoning, not only prevent
Finished paper drop etc. occurs caused by conventional blower fan because that can not come into operation in time has influence on paper quality, and also avoid because
Electrothermal relay protection is frequently jumped, causes the motor short time to start repeatedly and burns out accident appearance, and then favorably ensures that paper machine is normally given birth to
Production, reduce company's interest loss.
Brief description of the drawings
Fig. 1 is the circuit diagram of paper machine coating cycle hot blast centrifugal blower control device of the present invention.
Embodiment
In order that technical scheme can more clearly show, the present invention is made below in conjunction with the accompanying drawings further
Explanation.
As shown in figure 1, the present invention provides a kind of paper machine coating cycle hot blast centrifugal blower control device, paper machine coating
Circulating air centrifugal blower control device includes external power source 10, circuit breaker Q M, A.C. contactor KM1, current transformer
(TAa, TAc), electrothermal relay KH1, threephase asynchronous machine 20 and control module 30, the external power source 10, circuit breaker Q M, are handed over
Stream contactor KM1 major loops contact is sequentially connected in series, and terminals U, W of the threephase asynchronous machine 20 pass through electric current respectively
Transformer (TAa, TAc) is connected on A.C. contactor KM1 major loops contact KM1-1, the terminals of the threephase asynchronous machine
V is directly connected on A.C. contactor KM1 major loops contact KM1-1, and terminals U, W of the threephase asynchronous machine pass through electricity
Terminals are connected with electrothermal relay KH1 main contacts on current transformer (TAa, TAc), composition electric prospection loop, the control mould
Group 30 is provided with input 31, and the input 31 of the control module 30 is connected to circuit breaker Q M outputs by single-phase air switch Q
In one phase at end.
The control module includes electrothermal relay KH1, the time relay (KT1), indicator lamp (HG1, HW1), enabling signal
Input point DCS, auxiliary reclay (KA1, KA2), A.C. contactor KM1, A.C. contactor KM1 auxiliary contact (KM1-1, KM1-
2、KM1-3、KM1-4)；Change-over switch SA, start-stop button (SBS, SBF), the A.C. contactor KM1 aid in normally-closed contact
KM1-3 is serially connected with indicator lamp HG1, and A.C. contactor the KM1 auxiliary contact KM1-3 and indicator lamp HG1 after series connection connect respectively
Input 31 and zero line N；The A.C. contactor KM1 auxiliary normally opened contact KM1-2 and time relay KT1 coils are mutually gone here and there
Connection, A.C. contactor KM1 aids in normally opened contact KM1-2 and time relay KT1 coils to connect input 31 and zero respectively after series connection
Line N, the indicator lamp HW1 are connected in parallel on time relay KT1 coils；The enabling signal access point DSC and auxiliary reclay
Input 31 and zero line N are linked into after the series connection of KA1 coils；The change-over switch is provided with the contact of tetra- contacts of a, b, c, d, a and b
The contact for being one group of M, c and d is one group of A, and change-over switch can change automatic control state A groups and manual state of a control M groups, institute
Passage time relay KT1-1 delay break contacts and heat after the c contacts of a contacts and change-over switch of stating change-over switch SA are connected
Input 31 is connected to after relay KH1-1 normally-closed contacts are parallel with one another, the d contacts of the change-over switch SA by centre after
Zero line N, the change-over switch SA b contacts, start stop switch SBS normally-closed contacts, start and stop are connected to after the series connection of electrical equipment KA2 coils
Switch SBF normally opened contacts, A.C. contactor KA1-1, change-over switch SA d interfaces are sequentially connected in series, the A.C. contactor KM1-4
It is parallel on start stop switch SBF normally opened contacts, it is normally opened tactile that described A.C. contactor KM1 coils one end is connected to start stop switch SBF
Point output end exports with A.C. contactor KM1 normally opened contact KM1-4 output ends, the normally opened auxiliary contact KA1-1 of auxiliary reclay KA1
On circuit between end, the other end ground wire of the A.C. contactor KM1 coils.
During work, automatically reset by the electrothermal relay KH1 runback function settings in the control loop of threephase asynchronous machine 20
Effect is come into operation, and time relay KT1 on-delay break contact KT1-1 is simultaneously connected in threephase asynchronous machine 20 and controlled back
On the electrothermal relay KH1-1 normally-closed contacts on road.When change-over switch SA connect this control pattern M (or change-over switch SA connect it is automatic
Control model A), press start button SBF (or DCS signals are connected, and auxiliary reclay KA1 obtains electric), A.C. contactor KM lines
Enclose to obtain electric self-locking, time relay KT1 and run indicator HW1 obtains electric, and time relay KT1 must establish beginning timing by cable, the time after
Electrical equipment KT1-1 on-delay break contact, now functions as the electrothermal relay the control loop of threephase asynchronous machine 20
Short circuit on KH1-1 normally-closed contacts, in order to which electric current causes when avoiding producing peak-peak when threephase asynchronous machine 20 directly initiates
The action of electrothermal relay KH1 protections value influences threephase asynchronous machine 20 and run.Time relay KT timing (is set after reaching the setting time
Machine utilization size of the time being put when starting according to live threephase asynchronous machine 20 come adjustment time length come), now three is different
The full speed running of motor 20 is walked, startup optimization electricity is dropped in normal operation protection value, the control loop of threephase asynchronous machine 20
Electrothermal relay KH1 normally-closed contacts also Self-resetting, now electrothermal relay KH1 normally-closed contacts KH1-1 in parallel time relay KT1 is normal
Closed contact KT1-1 switchs to normally opened contact, and now overload thermal relay KH1 protections value is to the operation input protection of threephase asynchronous machine 20
Effect, be achieved in that paper coat after coating cycle hot blast centrifugal blower can come into operation in time hot-air seasoning paper product.
The beneficial effect of paper machine coating cycle hot blast centrifugal blower control device of the present invention is：By setting electrothermal relay
KH1 and time relay KT1, and time relay KT1 on-delay break contact KT1-1 is attempted by motor control and returned
On the electrothermal relay KH1 normally-closed contacts KH1-1 on road, lead to overload thermal relay KH protections value and protective effect put into operation motor,
And then realize coating cycle hot blast centrifugal blower after paper is coated and can come into operation in time hot-air seasoning, not only prevented with
Finished paper drop etc. occurs caused by having influence on paper quality because that can not come into operation in time toward blower fan, and also avoid because frequently
Electrothermal relay protection is jumped, causes the motor short time to start repeatedly and burns out accident appearance, and then favourable guarantee paper machine normally produces, and subtracts
Few company's interest loss.
Embodiment described above only expresses one embodiment of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (4)
- A kind of 1. paper machine coating cycle hot blast centrifugal blower control device, it is characterised in that：Including external power source, phase asynchronous electricity Machine, single-phase air switch Q control modules, the threephase asynchronous machine and control module are connected on external power source, the control Module is provided with input, and the input of the control module is connected on external power source by single-phase air switch Q, the control Module include electrothermal relay KH1, the time relay (KT1), enabling signal input point DCS, auxiliary reclay (KA1, KA2), A.C. contactor (KM1), A.C. contactor KM1 auxiliary contact (KM1-1, KM1-2, KM1-3, KM1-4), change-over switch SA, open Stop button (SBS, SBF)；The A.C. contactor auxiliary contact KM1-2 and run indicator HW1 is serially connected, and is exchanged after series connection Contactor auxiliary contact KM1-2 and indicator lamp HW1 connect input and connecting to neutral line respectively；The time relay KT1 and indicator lamp Connect respectively after HW1 parallel connections A.C. contactor auxiliary contact KM1-2 output ends and connecting to neutral line N, the enabling signal input point DCS with Input and connecting to neutral line N are linked into after the series connection of auxiliary reclay KA1 coils；The change-over switch is provided with tetra- contacts of a, b, c, d, A and b contact is that one group of M, c and d contact are one group of A, and change-over switch can be converted to automatic control state A groups and control manually State M groups processed, passage time relay KT1-1 after a contacts of the change-over switch SA are connected with change-over switch SA c contacts Delay break contact and KH1 normally-closed contact KH1-1 are parallel with one another and access input, and the d interfaces of the change-over switch SA lead to Cross the connection of auxiliary reclay KA2 coils to be followed by zero line N, the b interfaces of the change-over switch SA pass through normally closed with start stop switch SBS Contact, start stop switch SBF normally opened contacts, A.C. contactor KM1 coils are sequentially connected in series and are followed by zero line N.The A.C. contactor KM1 auxiliary contact KM1-4 and the parallel with one another self-locking action of start stop switch SBF opened points, the d interfaces of the change-over switch SA By connecting and being followed by zero line N with auxiliary reclay KA1 normally opened contacts KA1-1, A.C. contactor KM1 coils, the exchange Contactor KM1 coils one end is connected to start stop switch SBF opened points output end and the normally opened auxiliary contact KM1- of A.C. contactor KM1 On circuit between the normally opened auxiliary contact KA1-1 output ends of 4 output ends, auxiliary reclay KA1, the A.C. contactor KM1 lines The other end zero line N of circle.
- 2. paper machine coating cycle hot blast centrifugal blower control device as claimed in claim 1, it is characterised in that：Also include electric current Transformer (TAa, TAc), the external power source, circuit breaker Q M, A.C. contactor KM1 major loops contact KM1-1 are sequentially connected in series company Connect.
- 3. paper machine coating cycle hot blast centrifugal blower control device as claimed in claim 2, it is characterised in that：Described three is different Terminals U, W power line of step motor are connected to A.C. contactor KM1 major loops by current transformer (TAa, TAc) respectively and touched On point KM1-1, terminals are connected with electrothermal relay KH1 main contacts on the current transformer (TAa, TAc), form electric prospection Loop；The terminals V of the threephase asynchronous machine is directly connected on A.C. contactor KM1 major loops contact KM1-1, and described three Terminals U, W of phase Induction Machines also pass through current transformer (TAa, TAc) and A.C. contactor KM1 major loops contact KM1-1 Connection.
- 4. paper machine coating cycle hot blast centrifugal blower control device as claimed in claim 1, it is characterised in that：The control mould Group also includes indicator lamp HG1, and the A.C. contactor aids in normally-closed contact KM1-3 and stopping indicator lamp HG1 to be serially connected, connected A.C. contactor auxiliary contact KM1-3 and indicator lamp HG1 connects input and connecting to neutral line N respectively afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710602865.9A CN107528501B (en) | 2017-07-21 | 2017-07-21 | Paper machine coating cycle hot wind centrifugal blower control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710602865.9A CN107528501B (en) | 2017-07-21 | 2017-07-21 | Paper machine coating cycle hot wind centrifugal blower control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107528501A true CN107528501A (en) | 2017-12-29 |
| CN107528501B CN107528501B (en) | 2019-08-27 |
Family
ID=60680196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710602865.9A Active CN107528501B (en) | 2017-07-21 | 2017-07-21 | Paper machine coating cycle hot wind centrifugal blower control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107528501B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108357467A (en) * | 2018-02-09 | 2018-08-03 | 马钢(集团)控股有限公司 | A kind of truck highwall salvage stores scavenging machine and its application method |
| CN108571461A (en) * | 2018-05-31 | 2018-09-25 | 河南森源电气股份有限公司 | Fan controller, blower fan system and frequency convertor system |
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| CN108571461B (en) * | 2018-05-31 | 2023-11-21 | 河南森源电气股份有限公司 | Fan control device, fan system and frequency converter system |
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| Publication number | Publication date |
|---|---|
| CN107528501B (en) | 2019-08-27 |
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