CN105756986A - Fan control method for glasswork - Google Patents
Fan control method for glasswork Download PDFInfo
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- CN105756986A CN105756986A CN201510745299.8A CN201510745299A CN105756986A CN 105756986 A CN105756986 A CN 105756986A CN 201510745299 A CN201510745299 A CN 201510745299A CN 105756986 A CN105756986 A CN 105756986A
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- converter
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- blower
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Abstract
The invention discloses a fan control method for a glasswork. The fan control method for the glasswork comprises the following steps: (a), arranging a first circuit breaker and a second circuit breaker on a power supply loop of a motor, wherein one end of the power supply loop of the motor is connected with a fan motor and an electric valve motor; further, (b), connecting the first circuit breaker with a commercial-power power supply, and connecting the second circuit breaker with a leading-out terminal of the first circuit breaker. According to the fan control method for the glasswork, which is provided by the invention, the problem that the misoperation is easily caused by manual control is solved, and the process requirements that an electric valve is in a closed state when a fan is initially started and the electric valve is slowly opened after the fan is completely started are met.
Description
Technical field
The present invention relates to mechanical electric and control technical field, particularly relate to a kind of air-blower control for glass factory.
Background technology
At present, the air-blower control of major part glass factory is that common blower fan on off control adds manually-operated gate adjustment, owing to the tonnage of glass factory is increasing, the power of blower fan and the size of valve are also increasing accordingly, and increasing glass enterprise requires to adopt electrically operated valve to control with corresponding fan linkage.
Electrically operated valve need to meet following technological requirement when controlling with corresponding fan linkage.During initial start, electrically operated valve need to be closed, and slowly opens electrically operated valve after blower fan starts completely again；Glass factory's melting furnaces blower fan adopts the using and the reserved system, when switching blower fan, need to close electrically operated valve, restart standby fan.
For above technological requirement, have devised a kind of new practical blower control method, can meet technological requirement again simple and safe reliably.
Summary of the invention
It is contemplated that fill up the blank of existing glass factory air-blower control technology, it is provided that a kind of blower control method for glass factory.
In order to reach above-mentioned purpose, it is provided that a kind of blower control method for glass factory, comprising the steps: that (a) arranges the first chopper and the second chopper on the electric power loop of motor, its one end is connecting fan motor and motors of electric valves respectively；And (b) making described first chopper be connected with mains supply, described second chopper and the first breaker outgoing line end connect.
In some embodiments, arranging converter on each described blower motor, utilize and arrange knob on converter digital input port, being operated by knob to select converter is by long-range DCS speed governing or body panels speed governing.
In some embodiments, converter is run output relay and seals in main relay closing circuit.
In some embodiments, frequency converter failure output relay is sealed in converter parking loop.
In some embodiments, directional contactor is sealed in motors of electric valves major loop.
The blower control method for glass factory according to the present invention, overcomes Non-follow control and easily causes maloperation problem, and when meeting initial start blower fan, electrically operated valve is closed, and slowly opens the technological requirement of electrically operated valve after blower fan starts completely again.
Below in conjunction with accompanying drawing, it is illustrated by way of example the description of present subject matter, to know other aspects of the present invention and advantage.
Accompanying drawing explanation
In conjunction with accompanying drawing, by detailed description below, the above-mentioned and other feature and advantage of the present invention can be more clearly understood that, wherein:
Fig. 1 is the air-blower control schematic diagram of the blower control method for glass factory according to embodiments of the present invention.
Detailed description of the invention
Referring to the accompanying drawing of the specific embodiment of the invention, the present invention is described in more detail.But, the present invention can realize in many different forms, and should not be construed as by restriction of the embodiment of proposition at this.On the contrary, it is proposed to these embodiments are to reach fully and complete disclosure, and make those skilled in the art understand the scope of the present invention completely.
Description describes the blower control method for glass factory according to embodiments of the present invention in detail.
The air-blower control for glass factory according to embodiments of the present invention is used for the blower control method of glass factory, comprising the steps: that (a) arranges the first chopper and the second chopper on the electric power loop of motor, its one end is connecting fan motor and motors of electric valves respectively；And (b) making described first chopper be connected with mains supply, described second chopper and the first breaker outgoing line end connect.
Arranging converter on each described blower motor, utilize and arrange knob on converter digital input port, being operated by knob to select converter is by long-range DCS speed governing or body panels speed governing.Converter is run output relay and seals in main relay closing circuit.Frequency converter failure output relay is sealed in converter parking loop.Directional contactor is sealed in motors of electric valves major loop.
Referring initially to accompanying drawing, the example of blower control method for glass factory according to the present invention is described in detail.
A kind of fan controller for glass factory according to embodiments of the present invention is detailed below.
A kind of blower control method for glass factory according to embodiments of the present invention is detailed below.
First, arranging the first chopper and the second chopper on the electric power loop of motor, its one end is connecting fan motor and motors of electric valves respectively.Secondly so that described first chopper is connected with mains supply, described second chopper and the first breaker outgoing line end connect.
As shown in Figure 1, at present, the air-blower control of major part glass factory is that common blower fan on off control adds manually-operated gate adjustment, owing to the tonnage of glass factory is increasing, the power of blower fan and the size of valve are also increasing accordingly, and increasing glass enterprise requires to adopt electrically operated valve to control with corresponding fan linkage.Electrically operated valve need to meet following technological requirement when controlling with corresponding fan linkage.During initial start, electrically operated valve need to be closed, and slowly opens electrically operated valve after blower fan starts completely again；Glass factory's melting furnaces blower fan adopts the using and the reserved system, when switching blower fan, need to close electrically operated valve, restart standby fan；This control principle can realize that blower fan Central Control Room DCS remotely controls, body MCC controls, scene controls on the spot, and three kinds of control mode switchings are convenient, meet the requirement of different clients, facilitate the demand for security of production management and normal maintenance.Therefore the present invention changes traditional draught fan control circuit, is embodied in circuit aspect, as shown in Figure 1.
In Fig. 1, QL11a is blower fan major loop chopper；L11a is converter reactor；UF11a is converter；KB11a is converter manual operator；QL11a ' is motors of electric valves major loop chopper；KM11aR, KM11aF are motors of electric valves major loop directional contactor；KH11a is motors of electric valves major loop thermorelay；SA11a ' controls/body control permutator for long-range DCS；SA11a is start and stop on the spot/body MCC start and stop/long-range DCS start and stop permutator；SF11a, SS11a be frequency converter cabinet body start and stop manual operation button respectively；SF111a, SS111a respectively converter start and stop manual operation button on the spot；KA11a is converter starting relay；KT11a, KA113a respectively converter runs, fault-signal relay；KA114a is that electrodynamic valve reaches a relay；KA115a is that electrodynamic valve closes the relay that puts in place；SF111aF, SS111aR respectively electrodynamic valve shift knob on the spot.
Utilizing and arrange knob on converter digital input port, being operated by knob to select converter is by long-range DCS speed governing or body panels speed governing；Utilize on motors of electric valves electric power loop, install directional contactor, it is achieved opening or closing of electrodynamic valve；Select control on the spot, body MCC to control by permutator SA11a and remotely DCS controls, facilitate blower fan field adjustable and maintenance；
During in order to meet initial start, electrically operated valve need to be closed, and slowly opens electrically operated valve after blower fan starts completely again, and time-delay relay KT11a can adjust delay time by technological requirement, it is ensured that after blower fan starts completely, then opens electrodynamic valve.
In order to facilitate blower fan field adjustable, overhaul and switch blower fan needs, it is provided with manual start stop operation button SF111a, SS111a in device context, SF111aF, SS111aR, it is ensured that during fault equipment is easy to operate and worker safety, it is to avoid the personal injury that maloperation brings.
Realize this control method and pass through following steps:
(1) check the motor direction of rotation of every Fans, make every motor direction of rotation correct, meet technological requirement；Check that electrodynamic valve directional contactor is forward and reverse to open with electrodynamic valve simultaneously, whether consistent close.
(2) during normal operation, permutator SA11a being switched to long-range DCS and controls position, manual operation main circuit breaker switch QL11a and QL11a ' closes a floodgate, and manual operation knob SA11a ' to long-range DCS controls position, blower fan major loop and electrodynamic valve loop are all energized, and prepare to start.
A. the speed provided according to technique arranges the corresponding frequency of converter in Central Control Room DCS and gives, Central Control Room DCS system provides enabling signal, blower motor starts under transducer drive, when converter reaches DCS set-point, proceed to normal operation, export normal operation signal when converter is properly functioning, drive time-delay relay KT11a timing closing, opening electrodynamic valve, startup completes.
B., when needs adjust rotation speed of fan, only need to change DCS set-point at Central Control Room and can realize fan speed change.
C. when main transmission needs stop or switch blower fan, Central Control Room DCS system provides stop sign, and converter quits work, and time-delay relay KT11a timing closing contact is opened simultaneously, and normally-closed contact closes, and drives electrodynamic valve to close.
D. when converter is properly functioning or during fault, run or fault-signal is delivered to Central Control Room computer system and show, electrodynamic valve reaches position simultaneously, and the pass signal that puts in place is also delivered to Central Control Room computer system and shown.
(3) body MCC start and stop blower fan, permutator SA11a being switched to body MCC and controls position, manual operation main circuit breaker switch QL11a and QL11a ' closes a floodgate, and manual operation knob SA11a ' controls position to body, blower fan major loop and electrodynamic valve loop are all energized, and prepare to start.
A. the speed provided according to technique, by converter manual operator, corresponding frequency is set, manual operation starts button SF11a and closes a floodgate, blower motor starts under transducer drive, when converter reaches setting value, proceeds to normal operation, normal operation signal is exported when converter is properly functioning, driving time-delay relay KT11a timing closing, open electrodynamic valve, startup completes.
B., when needs adjust rotation speed of fan, only need to adjust converter manual operator frequency values and can realize fan speed change.
C. when main transmission needs stop or switch blower fan, manual operation stop button SS11a closes a floodgate, and converter quits work, and time-delay relay KT11a timing closing contact is opened simultaneously, and normally-closed contact closes, and drives electrodynamic valve to close.
D. when converter is properly functioning or during fault, run or fault-signal is delivered to Central Control Room computer system and show, electrodynamic valve reaches position simultaneously, and the pass signal that puts in place is also delivered to Central Control Room computer system and shown.
(4) start and stop blower fan on the spot, being switched to by permutator SA11a and control position on the spot, manual operation main circuit breaker switch QL11a and QL11a ' closes a floodgate, and manual operation knob SA11a ' controls position to body, blower fan major loop and electrodynamic valve loop are all energized, and prepare to start.
A. the speed provided according to technique, by converter manual operator, corresponding frequency is set, manual operation starts button SF111a on the spot and closes a floodgate, blower motor starts under transducer drive, when converter reaches setting value, proceeds to normal operation, normal operation signal is exported when converter is properly functioning, driving time-delay relay KT11a timing closing, open electrodynamic valve, startup completes.
B., when needs adjust rotation speed of fan, only need to adjust converter manual operator frequency values and can realize fan speed change.
C. when main transmission needs stop or switch blower fan, manual operation parking scram button SS111a on the spot closes a floodgate, and converter quits work, and time-delay relay KT11a timing closing contact is opened simultaneously, and normally-closed contact closes, and drives electrodynamic valve to close.
D. when converter is properly functioning or during fault, run or fault-signal is delivered to Central Control Room computer system and show, electrodynamic valve reaches position simultaneously, and the pass signal that puts in place is also delivered to Central Control Room computer system and shown.
E. when blower fan needs to overhaul, the scram button SS111a that need to will stop on the spot presses, and now cabinet or MCC enabling signal all cannot start blower fan Under Repair, and effective defense sector prevents maloperation or human accident from occurring, it is ensured that the safety of maintainer.
A kind of blower control method for glass factory according to the present invention, meets the requirement that glass enterprise requirement adopts electrically operated valve to control with corresponding fan linkage.Electrically operated valve need to meet following technological requirement when controlling with corresponding fan linkage.During initial start, electrically operated valve need to be closed, and slowly opens electrically operated valve after blower fan starts completely again；Glass factory's melting furnaces blower fan adopts the using and the reserved system, when switching blower fan, need to close electrically operated valve, restart standby fan；This control principle can realize that blower fan Central Control Room DCS remotely controls, body MCC controls, scene controls on the spot, and three kinds of control mode switchings are convenient, meet the requirement of different client, facilitate the demand for security of production management and normal maintenance.
The preferred embodiment of the present invention described in detail above.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to the design of the present invention without creative work.All technical staff in the art, all should in the protection domain being defined in the patent claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (5)
1. the blower control method for glass factory, it is characterised in that comprise the steps:
A () arranges the first chopper and the second chopper on the electric power loop of motor, its one end is connecting fan motor and motors of electric valves respectively；And
B () makes described first chopper be connected with mains supply, described second chopper and the first breaker outgoing line end connect.
2. blower control method according to claim 1, it is characterized in that, arranging converter on each described blower motor, utilize and arrange knob on converter digital input port, being operated by knob to select converter is by long-range DCS speed governing or body panels speed governing.
3. blower control method according to claim 1, it is characterised in that converter is run output relay and seals in main relay closing circuit.
4. blower control method according to claim 1, it is characterised in that frequency converter failure output relay is sealed in converter parking loop.
5. blower control method according to claim 1, it is characterised in that directional contactor is sealed in motors of electric valves major loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510745299.8A CN105756986B (en) | 2015-11-05 | 2015-11-05 | Fan control method for glass factory |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510745299.8A CN105756986B (en) | 2015-11-05 | 2015-11-05 | Fan control method for glass factory |
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| CN105756986A true CN105756986A (en) | 2016-07-13 |
| CN105756986B CN105756986B (en) | 2019-12-10 |
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| CN201510745299.8A Active CN105756986B (en) | 2015-11-05 | 2015-11-05 | Fan control method for glass factory |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110985431A (en) * | 2019-12-30 | 2020-04-10 | 中国建材国际工程集团有限公司 | Control circuit based on frequency converter communication control fan |
| CN114439766A (en) * | 2021-12-20 | 2022-05-06 | 中国建材国际工程集团有限公司 | Control method of electric air valve of fan |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110985431A (en) * | 2019-12-30 | 2020-04-10 | 中国建材国际工程集团有限公司 | Control circuit based on frequency converter communication control fan |
| CN114439766A (en) * | 2021-12-20 | 2022-05-06 | 中国建材国际工程集团有限公司 | Control method of electric air valve of fan |
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| CN105756986B (en) | 2019-12-10 |
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