CN110985432A - Magnetic suspension air blower multi-machine operation intelligent control system - Google Patents
Magnetic suspension air blower multi-machine operation intelligent control system Download PDFInfo
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- CN110985432A CN110985432A CN202010077449.3A CN202010077449A CN110985432A CN 110985432 A CN110985432 A CN 110985432A CN 202010077449 A CN202010077449 A CN 202010077449A CN 110985432 A CN110985432 A CN 110985432A
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- magnetic suspension
- blower
- suspension blower
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- control system
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- 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
- F04D27/007—Conjoint control of two or more different functions
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- 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
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
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- 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
- F05D2270/30—Control parameters, e.g. input parameters
- F05D2270/313—Air temperature
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The invention relates to a magnetic suspension blower multi-machine operation intelligent control system, which comprises a plurality of magnetic suspension blowers, an electrical control cabinet, an upper computer and a mains supply loop; a cooling system and an HMI system interface are arranged in the fan cabinet body; an electric control cabinet device UPS, a storage battery, a frequency converter, a magnetic bearing controller, a PLC, a contactor, a relay and the like; the PLC realizes the functions of magnetic suspension blower operation control, cooling system control, power supply signal display, fault signal display and the like, and feeds back the operation state to the upper computer; the upper computer is internally provided with an optimal configuration method for calculating the number of optimally configured blowers and the optimal air output of each blower, and the optimal configuration method and the PLC realize the automatic operation of the whole system together, save human resources and achieve the purposes of saving energy and reducing consumption. The control system not only can realize the optimal configuration and intelligent operation control of a plurality of magnetic suspension air blowers, but also can realize the cooling and cooling of the magnetic suspension air blowers and the uninterrupted power supply of the whole system.
Description
Technical Field
The invention relates to the technical field of air blowers, in particular to operation control of a plurality of magnetic suspension air blowers. The invention can achieve the purposes of saving labor cost, saving energy and reducing consumption by optimizing the operation and intelligently controlling a plurality of magnetic suspension blowers.
Background
The magnetic suspension blower is a high-air-volume and low-pressure blower device, adopts core technologies such as a high-speed permanent magnet motor, an electromagnetic suspension bearing and a direct-connected high-speed three-dimensional flow impeller, has the advantages of high efficiency, low maintenance cost and the like, and is widely applied to the fields of sewage treatment, petrochemical industry, cement building materials, desulfurization, environmental protection, food sanitation and the like at present. In the real life production, often need with many air-blowers use with unified place, and among the prior art, to the operation control of many magnetic suspension air-blowers mostly all need artifical manual operation, open or close the fan, adjust certain fan output flow etc. so not only increase the human cost, still probably increase electric energy consumption. Therefore, it is necessary to improve the prior art to save labor cost and improve energy utilization.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an intelligent control system for multi-machine operation of a magnetic suspension blower.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
1. the intelligent control system for the multi-machine operation of the magnetic suspension blowers is characterized by comprising a plurality of magnetic suspension blowers, an electrical control cabinet, an upper computer and a mains supply loop; the magnetic suspension blower device is arranged in the fan cabinet body, and the fan cabinet body is also provided with a cooling system and an HMI system interface; the electrical control cabinet device comprises a UPS, a storage battery, a frequency converter, a magnetic bearing controller, a PLC, a contactor, a relay and the like; the upper computer automatically controls the operation of the whole system, one end of the upper computer is connected with acquisition equipment applying site environment index semaphore, and the other end of the upper computer is connected with the PLC; the on-site environment index refers to a DO value of dissolved oxygen in the aeration tank, and the acquisition equipment is a dissolved oxygen meter for detecting oxygen content in sewage; the upper computer is internally provided with an optimized configuration method to realize system optimized configuration and optimized operation; the commercial power refers to power frequency alternating current, namely 380/220V and 50Hz alternating current.
2. On the basis of the scheme, uninterrupted power supply such as other power consumption equipment, PLC, host computer of magnetic suspension air-blower and the fan cabinet body is realized to UPS and battery, and when the commercial power supply was interrupted, the battery discharged and maintained UPS's power output, ensured that magnetic suspension air-blower and other power consumption equipment of the fan cabinet body, PLC, host computer etc. normally supply power in certain time.
3. On the basis of the scheme, the frequency converter can change the power supply frequency, and the rotating speed of the magnetic suspension blower is changed by changing the power supply frequency.
4. On the basis of the scheme, the cooling system comprises a cooling fan, a fan control unit and an ambient temperature detection unit, and the cooling fan is automatically started and closed through a PLC according to the operating ambient temperature of the magnetic suspension blower, so that the operating ambient temperature of the blower is reduced.
5. On the basis of the scheme, the HMI system interface is a human-computer interaction operation interface and comprises six functions of initial picture display, frequency converter parameter display, temperature display, pressure display, alarm display and system parameter setting.
6. On the basis of the scheme, the PLC realizes the functions of magnetic suspension blower operation control, cooling system control, power supply signal display, fault signal display and the like, and feeds back the operation state to the upper computer.
7. On the basis of the scheme, the optimal configuration method is used for calculating the number of the optimally configured blowers and the optimal air output of each blower so as to achieve the purposes of saving energy and reducing consumption.
Further, the optimization goal of the optimal configuration method is as follows:
min Cc＝Cin+Cm+Ce(1)
wherein: ccThe total cost of the system; cinIs an initial securityThe assembly cost; cmFor operating maintenance costs; ceWhich is an energy consumption cost.
The initial installation cost is the expense for converting the one-time investment cost of the magnetic suspension blower into each moment:
wherein: n is the total number of the magnetic suspension blowers; ciThe one-time investment cost of the ith magnetic suspension air blower is saved; r is a reference discount rate; liThe average life of the i of the magnetic suspension blower is shown; d is the total time of the year; delta TiAnd the operation time of the ith magnetic suspension blower is shown.
The operation and maintenance cost is as follows:
wherein αiThe operation and maintenance cost of unit electric energy of the ith magnetic suspension blower is saved; pi,tThe power of the ith magnetic suspension blower at the moment t; delta TiAnd the operation time of the ith magnetic suspension blower is shown.
Energy consumption cost:
wherein: lambda is the electricity purchasing unit price; pi,tThe power of the ith magnetic suspension blower at the moment t; delta TiAnd the operation time of the ith magnetic suspension blower is shown.
Further, the constraint conditions of the optimal configuration method are as follows:
1) installed scale constraint
1≤i≤n (5)
Wherein: n is the total number of the magnetic suspension blowers; and i is the ith magnetic suspension blower.
2) System air volume restriction
∑Vi,min≤V≤∑Vi,max(6)
Wherein: v is the air quantity required by the system; vi,minAnd Vi,maxRespectively showing the lower limit and the upper limit of the air volume of the ith magnetic suspension blower.
3) Single machine air quantity restraint
νiVi,min≤Vi≤νiVi,max(7)
νiIs a 0-1 state variable, vi0 and νi1 represents the shutdown state and the startup state of the ith magnetic suspension blower respectively; viOutputting air volume for the ith magnetic suspension blower; vi,minAnd Vi,maxRespectively showing the lower limit and the upper limit of the air volume of the ith magnetic suspension blower.
4) Stand-alone power constraint
νiPi,min≤Pi≤νiPi,max(8)
νiIs a 0-1 state variable, vi0 and νi1 represents the shutdown state and the startup state of the ith magnetic suspension blower respectively; pi,minAnd Pi,maxRespectively representing the lower power limit and the upper power limit of the ith magnetic suspension blower.
The magnetic suspension blower multi-machine operation intelligent control system has the following beneficial effects: the optimal configuration and intelligent operation control of a plurality of magnetic suspension blowers are realized, the manpower resource is saved, and the purposes of energy conservation and consumption reduction are achieved.
Drawings
The invention has the following drawings:
FIG. 1 is a schematic structural diagram of a magnetic suspension blower multi-machine operation intelligent control system.
Fig. 2 is a schematic diagram of a magnetic suspension blower multi-machine operation intelligent control process.
Fig. 3 is a schematic structural diagram of an electrical control cabinet according to the present invention.
In fig. 3, ① is a magnetic bearing controller, ② is an ac power supply region, ③ is a dc power supply region, ④ is a relay, ⑤ is a contactor, ⑥ is a PLC, ⑦ is a UPS, and ⑧ is a battery.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, fig. 2 and fig. 3, the magnetic suspension blower multi-machine operation intelligent control system comprises a plurality of magnetic suspension blowers, an electrical control cabinet, an upper computer and a mains supply loop; the magnetic suspension blower device is arranged in the fan cabinet body, and the fan cabinet body is also provided with a cooling system and an HMI system interface; the electrical control cabinet device comprises a UPS, a storage battery, a frequency converter, a magnetic bearing controller, a PLC, a contactor, a relay and the like; the upper computer automatically controls the operation of the whole system, one end of the upper computer is connected with acquisition equipment applying site environment index semaphore, and the other end of the upper computer is connected with the PLC; the commercial power refers to power frequency alternating current, namely 380/220V and 50Hz alternating current; the HMI system interface is a human-computer interaction operation interface and is divided into a state information area, an interface information area and an interface selection area, and the HMI system interface comprises six functions of initial picture display, frequency converter parameter display, temperature display, pressure display, alarm display and system parameter setting; the UPS and the storage battery realize uninterrupted power supply of the magnetic suspension blower, other electric equipment of the fan cabinet body, the PLC, the upper computer and the like, when the mains supply is interrupted, the storage battery discharges to maintain the power output of the UPS, and normal power supply of the magnetic suspension blower, other electric equipment of the fan cabinet body, the PLC, the upper computer and the like in a certain time is ensured; the cooling system comprises a cooling fan, a fan control unit and an ambient temperature detection unit, and the cooling fan can be automatically started and closed through a PLC (programmable logic controller) according to the operating ambient temperature of the magnetic suspension blower; the PLC realizes the functions of magnetic suspension blower operation control, cooling system control, power supply signal display, fault signal display and the like, and feeds back the operation state to the upper computer; the on-site environment index refers to a DO value of dissolved oxygen in the aeration tank, and the acquisition equipment is a dissolved oxygen meter for detecting oxygen content in sewage; the optimal configuration method is used for calculating the number of optimally configured blowers and the optimal air output of each blower so as to achieve the purposes of saving energy and reducing consumption.
Further, the optimization goal of the optimal configuration method is as follows:
min Cc＝Cin+Cm+Ce(9)
wherein: ccThe total cost of the system; cinInitial installation costs; cmFor operating maintenance costs; ceWhich is an energy consumption cost.
The initial installation cost is the expense for converting the one-time investment cost of the magnetic suspension blower into each moment:
wherein: n is the total number of the magnetic suspension blowers; ciThe one-time investment cost of the ith magnetic suspension air blower is saved; r is a reference discount rate; liThe average life of the i of the magnetic suspension blower is shown; d is the total time of the year; delta TiAnd the operation time of the ith magnetic suspension blower is shown.
The operation and maintenance cost is as follows:
wherein αiThe operation and maintenance cost of unit electric energy of the ith magnetic suspension blower is saved; pi,tThe power of the ith magnetic suspension blower at the moment t; delta TiAnd the operation time of the ith magnetic suspension blower is shown.
Energy consumption cost:
wherein: lambda is the electricity purchasing unit price; pi,tThe power of the ith magnetic suspension blower at the moment t; delta TiAnd the operation time of the ith magnetic suspension blower is shown.
Further, the constraint conditions of the optimal configuration method are as follows:
1) installed scale constraint
1≤i≤n (13)
Wherein: n is the total number of the magnetic suspension blowers; and i is the ith magnetic suspension blower.
2) System air volume restriction
∑Vi,min≤V≤∑Vi,max(14)
Wherein: v is the air quantity required by the system; vi,minAnd Vi,maxRespectively showing the lower limit and the upper limit of the air volume of the ith magnetic suspension blower.
3) Single machine air quantity restraint
νiVi,min≤Vi≤νiVi,max(15)
νiIs a 0-1 state variable, vi0 and νi1 represents the shutdown state and the startup state of the ith magnetic suspension blower respectively; viOutputting air volume for the ith magnetic suspension blower; vi,minAnd Vi,maxRespectively showing the lower limit and the upper limit of the air volume of the ith magnetic suspension blower.
4) Stand-alone power constraint
νiPi,min≤Pi≤νiPi,max(16)
νiIs a 0-1 state variable, vi0 and νi1 represents the shutdown state and the startup state of the ith magnetic suspension blower respectively; pi,minAnd Pi,maxRespectively representing the lower power limit and the upper power limit of the ith magnetic suspension blower.
The magnetic suspension blower multi-machine operation intelligent control system provided by the invention realizes the optimal configuration and intelligent operation control of a plurality of magnetic suspension blowers, saves manpower resources and achieves the purposes of energy conservation and consumption reduction.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Those not described in detail in this specification are within the skill of the art.
Claims (10)
1. The intelligent control system for the multi-machine operation of the magnetic suspension blowers is characterized by comprising a plurality of magnetic suspension blowers, an electrical control cabinet, an upper computer and a mains supply loop; the magnetic suspension blower device is arranged in the fan cabinet body, and the fan cabinet body is also provided with a cooling system and an HMI system interface; the electrical control cabinet device comprises a UPS, a storage battery, a frequency converter, a magnetic bearing controller, a PLC, a contactor, a relay and the like; the upper computer automatically controls the operation of the whole system, one end of the upper computer is connected with acquisition equipment applying site environment index semaphore, and the other end of the upper computer is connected with the PLC; the on-site environment index refers to a DO value of dissolved oxygen in the aeration tank, and the acquisition equipment is a dissolved oxygen meter for detecting oxygen content in sewage; the upper computer is internally provided with an optimized configuration method to realize system optimized configuration and optimized operation; the commercial power refers to power frequency alternating current, namely 380/220V and 50Hz alternating current.
2. The intelligent control system for multi-machine operation of the magnetic suspension blower according to claim 1, wherein the UPS and the storage battery realize uninterrupted power supply of the magnetic suspension blower and other electric equipment of the blower cabinet body, the PLC, the upper computer, and the like, and when the mains power supply is interrupted, the storage battery discharges to maintain the power output of the UPS, thereby ensuring that the magnetic suspension blower and other electric equipment of the blower cabinet body, the PLC, the upper computer, and the like can normally supply power within a certain time.
3. The magnetic suspension blower multi-machine operation intelligent control system as claimed in claim 1, wherein the cooling system comprises a cooling fan, a fan control unit and an ambient temperature detection unit, and the cooling fan is automatically started and stopped by the PLC according to the magnetic suspension blower operation ambient temperature, so as to reduce the fan operation ambient temperature.
4. The intelligent control system for multi-machine operation of magnetic suspension blowers according to claim 1, wherein the HMI system interface is a human-machine interactive operation interface and comprises six functions of initial picture display, frequency converter parameter display, temperature display, pressure display, alarm display and system parameter setting.
5. The intelligent control system for multi-machine operation of the magnetic suspension blowers according to claim 1, wherein the PLC realizes the functions of magnetic suspension blower operation control, cooling system control, power supply signal display, fault signal display and the like, and feeds back the operation state to the upper computer.
6. The magnetic suspension blower multi-machine operation intelligent control system as claimed in claim 1, wherein the optimal configuration method is used for calculating the optimal configuration blower number and the optimal air output of each blower, and the optimization goal of the optimal configuration method is as follows:
minCc＝Cin+Cm+Ce(1)
wherein: ccThe total cost of the system; cinInitial installation costs; cmFor operating maintenance costs; ceWhich is an energy consumption cost.
7. The intelligent control system for multi-machine operation of magnetic suspension blowers according to claim 6, wherein the initial installation cost is the one-time investment cost of the magnetic suspension blower converted to the cost expenditure at each moment:
wherein: n is the total number of the magnetic suspension blowers; ciThe one-time investment cost of the ith magnetic suspension air blower is saved; r is a reference discount rate; liThe average life of the i of the magnetic suspension blower is shown; d is the total time of the year; delta TiAnd the operation time of the ith magnetic suspension blower is shown.
8. The magnetic suspension blower multi-machine operation intelligent control system as claimed in claim 6, wherein the operation and maintenance cost calculation method is as follows:
wherein αiThe operation and maintenance cost of unit electric energy of the ith magnetic suspension blower is saved; pi,tThe power of the ith magnetic suspension blower at the moment t; delta TiAnd the operation time of the ith magnetic suspension blower is shown.
9. The magnetic suspension blower multi-machine operation intelligent control system as claimed in claim 6, wherein the energy consumption cost calculation method is as follows:
wherein: lambda is the electricity purchasing unit price; pi,tThe power of the ith magnetic suspension blower at the moment t; delta TiAnd the operation time of the ith magnetic suspension blower is shown.
10. The magnetic suspension blower multi-machine operation intelligent control system as claimed in claim 6, wherein the constraint conditions of the optimal configuration method are as follows:
1) installed scale constraint
1≤i≤n (5)
Wherein: n is the total number of the magnetic suspension blowers; and i is the ith magnetic suspension blower.
2) System air volume restriction
∑Vi,min≤V≤∑Vi,max(6)
Wherein: v is the air quantity required by the system; vi,minAnd Vi,maxRespectively showing the lower limit and the upper limit of the air volume of the ith magnetic suspension blower.
3) Single machine air quantity restraint
νiVi,min≤Vi≤νiVi,max(7)
νiIs a 0-1 state variable, vi0 and νi1 represents the shutdown state and the startup state of the ith magnetic suspension blower respectively; viOutputting air volume for the ith magnetic suspension blower; vi,minAnd Vi,maxRespectively showing the lower limit and the upper limit of the air volume of the ith magnetic suspension blower.
4) Stand-alone power constraint
νiPi,min≤Pi≤νiPi,max(8)
νiIs a 0-1 state variable, vi0 and νi1 represents the shutdown state and the startup state of the ith magnetic suspension blower respectively; pi,minAnd Pi,maxRespectively representing the lower power limit and the upper power limit of the ith magnetic suspension blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010077449.3A CN110985432A (en) | 2020-02-01 | 2020-02-01 | Magnetic suspension air blower multi-machine operation intelligent control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010077449.3A CN110985432A (en) | 2020-02-01 | 2020-02-01 | Magnetic suspension air blower multi-machine operation intelligent control system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622975A (en) * | 2020-07-28 | 2020-09-04 | 山东天瑞重工有限公司 | Multistage magnetic suspension air blower adjusting system and control method thereof |
| CN111947428A (en) * | 2020-08-13 | 2020-11-17 | 东北大学 | Metal plate strip heat treatment drying device |
| CN111980953A (en) * | 2020-09-03 | 2020-11-24 | 北京北排水环境发展有限公司 | Parallel operation control method and system for blower set group |
| CN116505701A (en) * | 2023-06-28 | 2023-07-28 | 北京格瑞拓动力设备有限公司 | Water-cooling composite internal circulation air-cooling magnetic suspension motor and intelligent monitoring system thereof |
-
2020
- 2020-02-01 CN CN202010077449.3A patent/CN110985432A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622975A (en) * | 2020-07-28 | 2020-09-04 | 山东天瑞重工有限公司 | Multistage magnetic suspension air blower adjusting system and control method thereof |
| CN111947428A (en) * | 2020-08-13 | 2020-11-17 | 东北大学 | Metal plate strip heat treatment drying device |
| CN111947428B (en) * | 2020-08-13 | 2022-12-06 | 东北大学 | Metal plate strip heat treatment drying device |
| CN111980953A (en) * | 2020-09-03 | 2020-11-24 | 北京北排水环境发展有限公司 | Parallel operation control method and system for blower set group |
| CN116505701A (en) * | 2023-06-28 | 2023-07-28 | 北京格瑞拓动力设备有限公司 | Water-cooling composite internal circulation air-cooling magnetic suspension motor and intelligent monitoring system thereof |
| CN116505701B (en) * | 2023-06-28 | 2023-08-25 | 北京格瑞拓动力设备有限公司 | Water-cooling composite internal circulation air-cooling magnetic suspension motor and intelligent monitoring system thereof |
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Address after: 050800 No.12, jiaojiaopu street, North District, high tech Development Zone, Zhengding County, Shijiazhuang City, Hebei Province Applicant after: DUNSHI MAGNETIC ENERGY TECHNOLOGY Co.,Ltd. Address before: 050093 DUNSHI Magnetic Energy Technology Co., Ltd., Xisanhuan auxiliary road, Qiaoxi District, Shijiazhuang City, Hebei Province Applicant before: DUNSHI MAGNETIC ENERGY TECHNOLOGY Co.,Ltd. |
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