CN209385323U - A kind of frequency conversion air compression system - Google Patents
A kind of frequency conversion air compression system Download PDFInfo
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- CN209385323U CN209385323U CN201821601245.XU CN201821601245U CN209385323U CN 209385323 U CN209385323 U CN 209385323U CN 201821601245 U CN201821601245 U CN 201821601245U CN 209385323 U CN209385323 U CN 209385323U
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- air compressor
- compressor machine
- air
- frequency
- frequency conversion
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Abstract
The utility model discloses a kind of frequency conversion air compression systems, including 1 group or more air compressor machine control unit, frequency converter, pressurized tank, pressure sensor, frequency converter and PLC；The air compressor machine control unit by motor and air-compressor set at.PLC controls air compressor machine by control frequency converter, and PLC compares the pressure and preset value in pressure sensor detection pressurized tank, controls the running frequency of air compressor, switch air compressor between power frequency and frequency conversion, realize the purpose of Isobarically Control.The utility model avoids the switching between air compressor power frequency and frequency conversion, both the waste of the energy can have been reduced, the electrical equipment degree of wear can reduce plus unload again caused by can make air compressor operation more stable in this way, reduce the probability that failure occurs.The switching that it is manually controlled and automatically controlled using rotary switch, improves reliability of operation, provides artificial guarantee for the appearance of failure.
Description
Technical field
The utility model relates to a kind of air compression system more particularly to a kind of frequency conversion air compression systems, belong to industry
Control technology field.
Background technique
Air compression plant, as the term suggests it is exactly to compress the air of nature, thus as many other machinery
Power source a kind of equipment, application range is very extensive, and small to arrive tyre inflating, building drives the rivets, carbon dioxide in beverage
The bottling of gas operates, and greatly to pneumatic pick of opening a mine, metal smelt, sea floor petroleum exploration, even weapon system can all use air
Compression set, it can be seen that air compression plant has very valuable research significance.The existing air compression dress such as air compressor machine
It sets by switching loading and unloads mode of loading to reconcile air pressure, be shut off air inlet when pressure reaches the air pressure upper limit
Valve opens pressure reducing valve.The case where motor is by dallying in this way, it is low to result in air compression plant utilization efficiency, air pressure
Disorder, a large amount of compressed air waste, and the energy of waste can even account for the 15% ~ 20% of air compressor full-load run.
And this working method can not continuously adjust, and air demand will receive plus the influence of unloading switching, generates unstable fluctuation, nothing
The quality of method guarantee output gas.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of frequency conversion air compression systems.
In order to solve the above technical problems, the technical solution adopted in the utility model is:
A kind of frequency conversion air compression system, including 1 group or more air compressor machine control unit, frequency converter, pressurized tank, pressure sensing
Device, frequency converter and PLC；The air compressor machine control unit by motor and air-compressor set at；The output of motor terminates air compressor machine
Input terminal；The output end of the input termination PLC of frequency converter, corresponding output end connects electronic in each air compressor machine control unit respectively
The input terminal of machine, the output end of air compressor machine connects the respective input of pressurized tank respectively in each air compressor machine control unit；Pressure sensing
Device is mounted on pressurized tank, for measuring the pressure of air in pressurized tank；The corresponding input of the output termination PLC of pressure sensor
End.
The frequency conversion air compression system further includes and the same number of rotary switch of air compressor machine control unit；The rotation
Each gear for turning on pass is respectively equipped with a pair of and concatenated normally opened contact of air compressor machine.
Having the technical effect that acquired by by adopting the above technical scheme
1, the utility model can use programmable controller PLC and control frequency converter, avoid frequency conversion air compressor
The big starting current Starting mode with regard to full-load run is run at the beginning, and cutting between air compressor power frequency and frequency conversion may be implemented
It changes, wants the pressure value kept to reach and preset one, air compressor machine is come with a kind of constant motor speed
Realize that constant pressure generates the task of gas supply；
2, the utility model can not only reduce the waste of the energy, but also can reduce plus unload caused electrical equipment abrasion
Degree can make air compressor operation more stable in this way, reduce the probability that failure occurs；
3, the switching that the utility model is manually controlled and automatically controlled using rotary switch improves the reliable of operation
Property, artificial guarantee is provided for the appearance of failure.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the principles of the present invention block diagram.
Specific embodiment
Embodiment 1
A kind of frequency conversion air compression system, including 1 group or more air compressor machine control unit, frequency converter, pressurized tank, pressure sensing
Device, frequency converter and PLC；The air compressor machine control unit by motor and air-compressor set at；The output of motor terminates air compressor machine
Input terminal；The output end of the input termination PLC of frequency converter, corresponding output end connects electronic in each air compressor machine control unit respectively
The input terminal of machine, the output end of air compressor machine connects the respective input of pressurized tank respectively in each air compressor machine control unit；Pressure sensing
Device is mounted on pressurized tank, for measuring the pressure of air in pressurized tank；The corresponding input of the output termination PLC of pressure sensor
End.
The frequency conversion air compression system further includes and the same number of rotary switch of air compressor machine control unit；The rotation
Each gear for turning on pass is respectively equipped with a pair of and concatenated normally opened contact of air compressor machine.
In the present embodiment, frequency conversion air compression system includes 3 groups or more air compressor machine control units.After starting starting, by electricity
Motivation 1 and No. 1 beginning converting operation of air compressor machine, if the pressure detection value of pressure sensor acquisition does not reach sets requirement
When, just start motor No. 2 and air compressor machine 2, if still ineligible, is then turned on motor No. 3 and air compressor machine 3.Such as
When fruit multiple air compressors co-operation causes pressure in excess of the quota such as 1.0MPa, and each air compressor machine of low-frequency operation makes not yet
Pressure in pressurized tank drops to limit hereinafter, will stop a wherein air compressor machine, and so on, until item required for meeting
Until part, Isobarically Control is realized.
Under automatic mode:
After bringing into operation, No. 1 beginning converting operation of air compressor machine, while frequency conversion lamp is bright, display working condition is frequency conversion state,
After 10 seconds, air compressor machine 1 runs to power frequency state by 0HZ, if the pressure in pressurized tank does not reach preset pressure
Force value starts air compressor machine 2 after keeping current state to run 10 seconds, is brought into operation by frequency conversion state, First power frequency refers at this time
Show that lamp is bright, second frequency conversion indicator light lights, and air compressor machine 2 run to power frequency by 0HZ after 10 seconds, and the pressure in pressurized tank is real
When compared with setting value, if not up to restarting air compressor machine 3, while air compressor machine No. 1 and air compressor machine 2 power frequency indicator light is bright
It rises, air compressor machine 3 frequency conversion lamps are bright, and after pressure reaches preset value, each air compressor machine keeps current state operation.If three
When platform air compressor machine is run simultaneously, when the pressure value of generation is more than pressure limit, then No. 3 beginning converting operations of air compressor machine, after 10s
30HZ operation is become from power frequency, after operation 10 seconds, if the pressure in pressurized tank is still higher than pressure limit, closes air compressor machine
No. 3, No. 2 beginning converting operations of air compressor machine, if the pressure in pressurized tank is still higher than pressure limit, turn off after operation 10 seconds
Air compressor machine 2, No. 1 beginning converting operation of air compressor machine, until meeting condition.
Under manual mode:
Field Force manually controls the working condition of each air compressor machine, each air compressor machine can be examined by artificial start and stop whether
Can work normally, with check each air compressor machine whether equipment there are failures.
Claims (1)
1. a kind of frequency conversion air compression system, it is characterised in that: including 1 group or more air compressor machine control unit, frequency converter, pressure
Tank, pressure sensor, frequency converter and PLC；The air compressor machine control unit by motor and air-compressor set at；The output of motor
Terminate the input terminal of air compressor machine；The output end of the input termination PLC of frequency converter, corresponding output end connect each air compressor machine control respectively
The input terminal of motor in unit, the output end of air compressor machine connects the corresponding input of pressurized tank respectively in each air compressor machine control unit
End；Pressure sensor is mounted on pressurized tank, for measuring the pressure of air in pressurized tank；The output of pressure sensor terminates
The respective input of PLC；Frequency conversion air compression system further include with the same number of rotary switch of air compressor machine control unit, it is described
Each gear of rotary switch is respectively equipped with a pair of and concatenated normally opened contact of air compressor machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821601245.XU CN209385323U (en) | 2018-09-29 | 2018-09-29 | A kind of frequency conversion air compression system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821601245.XU CN209385323U (en) | 2018-09-29 | 2018-09-29 | A kind of frequency conversion air compression system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209385323U true CN209385323U (en) | 2019-09-13 |
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ID=67866133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821601245.XU Expired - Fee Related CN209385323U (en) | 2018-09-29 | 2018-09-29 | A kind of frequency conversion air compression system |
Country Status (1)
| Country | Link |
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| CN (1) | CN209385323U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111502969A (en) * | 2020-04-08 | 2020-08-07 | 上海优耐特斯压缩机有限公司 | Constant-pressure control system and method for air compression station |
| CN114483557A (en) * | 2022-02-10 | 2022-05-13 | 宁波中科绿色电力有限公司 | Air compression system and method |
-
2018
- 2018-09-29 CN CN201821601245.XU patent/CN209385323U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111502969A (en) * | 2020-04-08 | 2020-08-07 | 上海优耐特斯压缩机有限公司 | Constant-pressure control system and method for air compression station |
| CN114483557A (en) * | 2022-02-10 | 2022-05-13 | 宁波中科绿色电力有限公司 | Air compression system and method |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190913 Termination date: 20210929 |
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| CF01 | Termination of patent right due to non-payment of annual fee |