CN207246018U - A kind of frequency conversion type screw air compressor automatic control system - Google Patents
A kind of frequency conversion type screw air compressor automatic control system Download PDFInfo
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- CN207246018U CN207246018U CN201721112893.4U CN201721112893U CN207246018U CN 207246018 U CN207246018 U CN 207246018U CN 201721112893 U CN201721112893 U CN 201721112893U CN 207246018 U CN207246018 U CN 207246018U
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- air compressor
- programmable controller
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Abstract
The utility model discloses a kind of frequency conversion type screw air compressor automatic control system, including host computer unit, display unit, programmable controller unit, touch screen unit, frequency converter unit, sensor unit, host computer unit is connected with programmable controller unit, host computer unit and programmable controller unit communication, realize the function for monitoring to empty neat compressor operation parameters；Programmable controller unit realizes the communication of host computer unit and programmable controller, realizes remote control of the host computer unit to air compressor by function expanding module of the communication function plate module with configuration in a communication network；Touch screen unit is arranged on automatic control cabinet, touch screen unit by with programmable controller unit communication, realize and programmable controller cell parameters set and on-site supervision to equipment operating parameter；Frequency converter unit is the arrangements for speed regulation of air compressor, and the adjusting to air compressor rotating speed is realized by programmable controller unit.
Description
Technical field
A kind of air compressor technical field is the utility model is related to, it is empty more specifically to a kind of frequency conversion type screw rod
Air compressor automatic control system.
Background technology
Air pressure transmits medium with its energy（Air）Can use everywhere, resource without cost, transmission energy is big, distance is remote,
Safe to use, the features such as facilitating, be widely used as the power source of mine working developing or stope.Serve as the air pressure for supply of calming the anger
Contracting machine (lower abbreviation air compressor machine) station is typically found at the ground surface plant in mine nearby (also having fraction to build underground in), is
One of computer room is mainly fixed in mine.Under normal conditions, several air compressor machines are installed, single motor capacity is generally in air compressor plant
Tens to hundreds of kilowatts, an air compressor plant total installation of generating capacity reaches hundreds to thousands kilowatt, it consumes total electricity and accounts for full ore deposit
30% or so, occupy first of the capital equipment energy consumption of mine.The gases at high pressure of air compressor plant compression are delivered to gas by supply air line
Point, endlessly power is provided for pneumatic equipment.Continuously-running duty when Mine Air Compressor is usually 24 small, part mine enterprise
Industry allows in period temporary stoppage of relieving to save energy consumption.The air compressor machine that mine uses mainly has piston type and screw two
Kind, but now with the development of screw air compressor manufacturing technology, it is with operational efficiency is high, operate steadily the advantage such as low with failure rate
The first choice of user is become, Piston Air Compressor is progressively eliminated.
Screw air compressor mainly has two kinds of control modes of power frequency and frequency conversion.In recent years, with frequency conversion and automatic control technology
Continuous development, more and more barghs actively promote and apply air compressor machine frequency conversion automatic control technology.But due to past portion
Dividing enterprise, using frequency control, there is the difference in understanding for screw air compressor, it is believed that " screw air compressor has had in itself
Standby energy-saving effect, then install frequency control additional and have little significance ", automatic control equipment producer in part is to screw air compressor frequency control in addition
Technically and immature, its product is there is energy-saving effect is undesirable and the problems such as high failure rate, or even burns out often
Phenomena such as air compressor host or motor, seriously constrain the development of this technology, existing technical problem：
1）Manual operation is complicated, and the operation number of units of air compressor is more, low production efficiency；
2）Traditional frequency conversion control device of air compressor is control form using the independent dispersion of each air compressor, therefore structure
Complicated, pressure controls not accurate low with fractional energy savings；
3）Traditional air compressor frequency-converting control device is using control mode on the spot, and the degree of automation is low, to air pressure
Based on the start-up and shut-down control of contracting machine is thrown away in a manner of manually；
In conclusion establish it is a kind of easy to automation, it is energy saving and improve work efficiency and configure rational air screw
Compressor control system has important practical significance, and how to provide a kind of frequency conversion type screw air compressor automatic control system,
It is a problem to be solved by those skilled in the art.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of frequency conversion type screw air compressor automatic control system,
To achieve these goals, the utility model provides following technical solution：
A kind of frequency conversion type screw air compressor automatic control system, including host computer unit, display unit, programming
Controller unit, touch screen unit, frequency converter unit, sensor unit
Wherein, the host computer unit is connected with programmable controller unit, the host computer unit and programming Control
Device unit communication, realizes the function for monitoring to empty neat compressor operation parameters；
The programmable controller unit includes communication function extension plate module and function expanding module, is led to by described
Telecommunication function plate module and configuration function expanding module in a communication network, realize the logical of host computer unit and programmable controller
Letter, realizes remote control of the host computer unit to air compressor；
The touch screen unit is arranged on automatic control cabinet, the touch screen unit by with programmable controller list
Member communication, realizes the on-site supervision set to programmable controller cell parameters and to equipment operating parameter；
The frequency converter unit is the arrangements for speed regulation of air compressor, passes through the programmable controller unit realization pair
The adjusting of air compressor rotating speed；
Sensor unit, the sensor unit include pressure sensor assembly, temperature sensor assembly, current sense
Device assembly and voltage sensor device assembly, the force sensor module, temperature sensor assembly, current sense device assembly and voltage
Measured parameter is sent to programmable controller unit by sensor component to the on-line checking of air compressor operating parameter,
The programmable controller unitary operation and processing, realize real-time control and the display of operating parameter to air compressor；
Further, the frequency conversion type screw air compressor automatic control system further includes communication and passes the utility model
Defeated line, the communications line for set of twisted pair into.
Further the programmable controller unit is provided with deformation PID regulating devices, the change to the utility model
Shape PID devices are programmed programmable controller unit, and the air compressor rotating speed is adjusted for 0 ~ 50Hz scopes.
Further, the frequency conversion type screw air compressor automatic control system further includes printer to the utility model
Unit, the printer unit are host computer unit information output block.
A kind of frequency conversion type screw air compressor automatic control system provided by the utility model, first, air compressor plant realizes
Automatic Control, alleviates operating personnel's burden or saves operating personnel；Second, the safety and reliability of air compressor plant obtain
Improved to comprehensive, inherently ensured the safety of equipment, improved quality of filling gas, improved the work efficiency of gas equipment；
Third, realize air compressor energy-saving operation.Project has fractional energy savings height, and the big advantage of energy saving total amount, becomes current mine economize on electricity effect
One of most significant project of fruit；Fourth, the operating condition of air compressor machine is improved, to improving service life of equipment and reducing equipment fortune
Row cost is extremely advantageous.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is new frequency conversion type screw air compressor automatic control system schematic diagram provided by the utility model；
Fig. 2 is new frequency conversion type screw air compressor automatic control system schematic diagram provided by the utility model；
Fig. 3 is new frequency conversion type screw air compressor automatic control system schematic diagram provided by the utility model；
In figure 1 above -3：
1st, host computer unit；2nd, display unit；3rd, printer unit；4th, programmable controller unit；5th, touch-screen list
Member；6th, sensor unit；61st, temperature sensor unit；62nd, current sense device assembly；63rd, pressure sensor assembly；64th, voltage
Sensor component；7th, frequency converter unit；8th, air compressor
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical scheme in the embodiment of the utility model is carried out clear
Chu, be fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole realities
Apply example.Based on the embodiment in the utility model, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, belongs to the scope that this practicality is newly protected.
Please refer to Fig.1 to Fig. 3, a kind of frequency conversion type screw air compressor automatic control system, including host computer unit 1,
Display unit 2, programmable controller unit 4, touch screen unit 5, frequency converter unit 7, sensor unit 6
Wherein, the host computer unit 1 is connected with programmable controller unit 4, and the host computer unit 1 is controlled with programming
Device unit 4 processed communicates, and realizes the function for monitoring to empty neat compressor operation parameters, and the host computer unit receives programmable control
The signal that device unit 4 processed transmits, by the way that alarm signal is shown or sent after processing on display unit 2, while can
The operational order of operating personnel or operating parameter are sent to the control to programmable controller unit 4, realized to each equipment, and can
Related data is stored, realizes the record to information such as equipment operating parameter and device failure alerts and inquiry.
In addition, the host computer unit has network savvy, monitoring information can be uploaded to enterprise's too net, so with it is mutual
Networking is connected, and enterprise administrator can understand the operation conditions of each air compressor by way of browsing webpage.
Preferably, host computer unit selects brand industrial personal computer, while configures big screen width display unit 2, and configuration software is adopted
With domestic advanced " Zijin bridge software ".
The programmable controller unit 4 includes communication function extension plate module and function expanding module, by described
Function expanding module of the communication function plate module with configuration in a communication network, realizes host computer unit 1 and programmable controller list
The communication of member 4, realizes remote control of the host computer unit to air compressor.
The touch screen unit 5 is arranged on automatic control cabinet, the touch screen unit 5 by with programmable controller
Unit 4 communicates, and realizes the on-site supervision to 4 parameter setting of programmable controller unit and to equipment operating parameter, realizes live people
The operation of machine dialog interface, it is preferable that the touch-screen is with technology maturation, reliability is high, acquisition cost is low.
The frequency converter unit 7 is the arrangements for speed regulation of air compressor, is realized by the programmable controller unit 4
Adjusting to air compressor rotating speed；To realize to air compressor 0 ~ rated speed wide scope rotational speed regulation, consider at the same time
Air compressor is heavy load starting, and the present embodiment uses 2 quadrant universal frequency converter unit 7 of vector type.In order to realize that air compresses
Air compressor unit 8 " full frequency conversion covering " operational mode, the frequency converter unit 7 are matched somebody with somebody in all operations in 8 station of machine unit
Put number of units to determine by with air compressor unit 8 " one-to-one " control mode, it is preferable that selected 1# to 6# frequency converters is corresponded
The 1# is controlled it using a frequency conversion frequency converter to 6# air compressors, i.e., running each air compressor
System, while switching device is configured, the mode switched over to frequency conversion, realizes frequency converter unit 7 to air compressor unit 8
" one-to-one " control.
Sensor unit 6, the sensor unit 6 include pressure sensor assembly 61, temperature sensor assembly 62, electricity
Flow sensor component 63 and voltage sensor device assembly 64, the pressure sensor assembly 61, temperature sensor assembly 62, electric current
Measured parameter is passed the on-line checking of air compressor operating parameter by sensor component 63 and voltage sensor device assembly 64
Send to programmable controller unit 4,4 computing of programmable controller unit and processing, realize the real-time control to air compressor
The display of system and operating parameter；
Wherein, the frequency conversion type screw air compressor automatic control system further includes communications line, and described is logical
Transmission medium of the letter transmission line as communication system, has transmission reliably and laying is convenient, it is preferable that the communications line
It is set of twisted pair into its maximum transmission distance is 100m, when the certainly described transmission range is farther, repeater can be used to extend logical
Communication distance, its length is up to 500m.
Wherein, the programmable controller unit 4 is provided with deformation PID regulating devices, the deformation PID regulating devices
It is adjusted according to the rotating speed of how many pairs of air compressors of gas equipment gas consumption in air supply system, deformation PID dresses
Put and programmable controller unit 4 is programmed, the air compressor rotating speed is adjusted for 0 ~ 50Hz scopes, when gas equipment
During gas consumption increase, reduction trend is presented in the pressure in gas transmission pipeline net work, then frequency conversion type screw air compressor automatic control system
Control the rotating speed of air compressor to improve, make the air demand of air compressor increase, conversely, then frequency conversion type screw air compressor
The rotating speed of automatic control system control compressor reduces, and reduces the air demand of air compressor, this adjusting process ensure that
Supply gas pressure in gas transmission pipeline net work is basically unchanged, and is realized constant pressure and energy control for need function, is also reduced air compressor unit
Failure rate.
A kind of frequency conversion type screw air compressor automatic control system provided by the utility model, which can be real
Now the entirety of air compressor is controlled, each component of control system is designed to an entirety, and the utility model is with whole air
Compressor object in order to control, brings all air compressors into same control system and is controlled, realize the connection of equipment
Control is closed, simplifies the structure of system hardware and software, accurate to the governing speed of supply gas pressure, energy-saving effect substantially carries
It is high.Meanwhile the utility model is provided with host computer unit, and the application network communication technology is by field control equipment and host computer list
Member is coupled, and realizes the remote monitoring of air compressor unit, and air compressor station is not required to set " manually on duty " post again.
Embodiment 1：
Hunan Province Ma Tian mining industry Co., Ltd nova colliery is the mine that a production capacity is 210,000 tons.The coal mine ground
Air compressor plant is mounted with 3 model SAV250-8W screw-rod air compressors（The specified tolerance of separate unit is 30.1m3, nominal pressure
0.8MPa, power of motor 186KW, voltage 380V）.Before frequency-changing control system is installed additional, air compressor machine uses traditional relay control
Device processed, using manual hand manipulation, power frequency operation mode, long-term existence operation hours length, and equipment operating environment is poor,
The problems such as power consumption is more, and high failure rate and quality of filling gas cannot be guaranteed.In December, 2016, the colliery have installed change additional to the pressure wind station
After frequency automatic control system, the operation conditions of air compressor machine is significantly improved.Through statistical testing of business cycles, following application effect is reached：
1. air compressor machine realizes fully automatic operation, the automatic adjustment of automatic start-stop and pressure is realized, eliminates artificial hand
Dynamic operation.
2. the operation number of units of air compressor machine is reduced, 1~2 is kept to by original 2~3.
3. delivery temperature during compressor operation declines more than 10 DEG C than original.
4. the stability bandwidth of supply gas pressure is down to less than 2% by past 25%, the work efficiency of gas equipment is improved.
5. realize energy-saving run.The daily electricity consumption total amount of air compressor plant drops to 2500Kwh by original 4100Kwh,
Power saving rate reaches 39%.
6. the total oil consumption of air compressor plant monthly drops to 26L by past 55L.
7. the noise ratio of air compressor plant declines more than 10 decibels originally.
8. improving the security reliability at whole pressure wind station, the failure rate of equipment is reduced.Since equipment investment is run, not
Generation air compressor machine or control device failure, while avoid maloperation and control device malfunction phenomenon.
Embodiment 2：
Gold Zhushan County of Hunan Province mining industry Co., Ltd Tang Chong collieries are the mines that a production capacity is 300,000 tons.The colliery
Face air compressor plant is mounted with 5 model OLGC-200W type single-screw air compressors（Rated discharge amount is 34.7m3/min, volume
Determine air pressure 0.8MPa, necessary electromotor power 200KW, voltage class 380V）, three is standby with two under normal circumstances.Carrying out frequency conversion control
Before the system reform processed, which is mounted with 2 frequency converters, and using " incomplete frequency conversion " control mode, i.e., 3 are run in air compressor machines
1 converting operation, another 2 are power frequency operation, its actual energy-saving effect is bad.And the air compressor machine of the ore deposit uses artificial hand for a long time
Dynamic operation, its management difficulty is big, and long-term existence operation hours length, and equipment operating environment is poor, high failure rate and for makings
The problems such as amount cannot be guaranteed.2 months 2017, which carried out upgrading to the control system at the pressure wind station, is mounted with
Frequency conversion automatic control system.Through statistical testing of business cycles, following application effect is reached：
1. air compressor machine realizes fully automatic operation, the automatic adjustment of automatic start-stop and pressure is realized, eliminates artificial hand
Dynamic operation.
2. the operation number of units of air compressor machine is reduced, 2 are kept to by original 3.
3. the delivery temperature of power frequency operation air compressor machine declines more than 10 DEG C than original.
4. the stability bandwidth of supply gas pressure is down to less than 2% by past 15%, the work efficiency of gas equipment is improved.
5. realize energy-saving run.The daily electricity consumption total amount of air compressor plant drops to 3540Kwh by original 5230Kwh,
Power saving rate reaches up to 32%.
6. the total oil consumption of pressure wind station monthly drops to 39L by past 68L.
7. the noise ratio of air compressor plant declines more than 8 decibels originally.
8. improving the security reliability at whole pressure wind station, the failure rate of equipment is reduced, has not been occurred since putting into operation
Air compressor machine or control device failure, while avoid maloperation and control device malfunction phenomenon.
Compared with traditional control system of air compressor, this control system has larger in the application aspect of structure and new technology
Breakthrough, represent the advanced level of current air compressor machine frequency conversion control technique.To sum up mainly have the advantage that：It is first, empty
Press station realizes Automatic Control, alleviates operating personnel's burden or saves operating personnel；Second, the safety of air compressor plant
Unfailing performance is improved comprehensively, has inherently been ensured the safety of equipment, has been improved quality of filling gas, has improved gas equipment
Work efficiency；Third, realize air compressor energy-saving operation.Project has fractional energy savings high, and the big advantage of energy saving total amount, becomes current
One of most significant project of mine power savings；Fourth, improve the operating condition of air compressor machine, to improve service life of equipment and
It is extremely advantageous to reduce equipment operating cost.Due to there are above-mentioned advantage, then this technology great popularization.
It is provided by the utility model it is a kind of have low with cost, added value height, resource circulation utilization, had both saved state's family property
Source, meets circular economy, the environmental protection policy of country's promotion, and reduces production cost, improves economic benefit and social benefit.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (4)
1. a kind of frequency conversion type screw air compressor automatic control system, it is characterised in that including host computer unit, display
Unit, programmable controller unit, touch screen unit, frequency converter unit, sensor unit,
Wherein, the host computer unit is connected with programmable controller unit, the host computer unit and programmable controller list
Member communication, realizes the function for monitoring to empty neat compressor operation parameters；
The programmable controller unit includes communication function extension plate module and function expanding module, passes through the communication work(
Function expanding module of the energy plate module with configuration in a communication network, realizes the communication of host computer unit and programmable controller, real
Remote control of the existing host computer unit to air compressor；
The touch screen unit is arranged on automatic control cabinet, and the touch screen unit with programmable controller unit by leading to
Letter, realizes the on-site supervision set to programmable controller cell parameters and to equipment operating parameter；
The frequency converter unit is the arrangements for speed regulation of air compressor, is realized by the programmable controller unit to air
The adjusting of compressor rotary speed；
The sensor unit includes pressure sensor assembly, temperature sensor assembly, current sense device assembly and voltage and passes
Sensor component, the force sensor module, temperature sensor assembly, current sense device assembly and voltage sensor device assembly are to sky
The on-line checking of air compressor operating parameter, while measured parameter is sent to programmable controller unit, the programming Control
Device unitary operation and processing, realize real-time control and the display of operating parameter to air compressor.
2. a kind of frequency conversion type screw air compressor automatic control system according to claim 1, it is characterised in that described
The frequency conversion type screw air compressor automatic control system further include communications line, the communications line is double
Twisted wire forms.
3. a kind of frequency conversion type screw air compressor automatic control system according to claim 2, it is characterised in that described
Range controller unit be provided with deformation PID regulating devices, the deformation PID devices compile programmable controller unit
Journey, the air compressor rotating speed are adjusted for 0 ~ 50Hz scopes.
4. a kind of frequency conversion type screw air compressor automatic control system according to claim 3, it is characterised in that described
Frequency conversion type screw air compressor automatic control system further include printer unit, the printer unit is host computer list
Metamessage output block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721112893.4U CN207246018U (en) | 2017-09-01 | 2017-09-01 | A kind of frequency conversion type screw air compressor automatic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721112893.4U CN207246018U (en) | 2017-09-01 | 2017-09-01 | A kind of frequency conversion type screw air compressor automatic control system |
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| Publication Number | Publication Date |
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| CN207246018U true CN207246018U (en) | 2018-04-17 |
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ID=61884855
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| CN201721112893.4U Expired - Fee Related CN207246018U (en) | 2017-09-01 | 2017-09-01 | A kind of frequency conversion type screw air compressor automatic control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2017
- 2017-09-01 CN CN201721112893.4U patent/CN207246018U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180417 Termination date: 20180901 |