CN205937070U - Air compressor machine group control system - Google Patents
Air compressor machine group control system Download PDFInfo
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- CN205937070U CN205937070U CN201620866141.6U CN201620866141U CN205937070U CN 205937070 U CN205937070 U CN 205937070U CN 201620866141 U CN201620866141 U CN 201620866141U CN 205937070 U CN205937070 U CN 205937070U
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Abstract
The utility model relates to an air compressor machine control field, aim at provide an air compressor machine group control system, air compressor machine group control system and control method, including man -machine interface, PLC operation control unit, frequency conversion air compressor machine, power frequency air compressor unit, pressure sensor, no paper record appearance and gas holder, power frequency air compressor unit is established ties by more than one power frequency air compressor machine and constitutes, man -machine interface is connected with PLC operation control unit electricity, the PLC operation control unit is connected with frequency conversion air compressor machine and power frequency air compressor unit electricity respectively. The utility model has the advantages of can control and adjust pneumatics group of planes output wantonly, avoid the consumption extravagant to frequent starter motor does not reduce energy losses, reduces the impact to the electric wire netting, and this system can adjust the quick -witted load circumstances of compression in pressure range, and machine load rate can reach 95%, reaches the effect of constant voltage air feed and saving electric energy.
Description
Technical field
The utility model is related to air compressor machine control field, particularly to a kind of air compressor machine group control system.
Background technology
Generally air compression station is made up of multiple air compressors, and every air compressor machine, all by a motor drag, is independently controlled.?
In real work, air compression station is designed by maximum working load, so when gas consumption is few, starting 1-2 platform unit, gas consumption
When big, start multiple stage parallel running, in systemic presupposition ductwork pressure value, system by automatically according to default pressure value lower limit with
The upper limit is automatically loaded and is unloaded, for meeting gas consumption.This control mode of air compression station, brings many problems.As：Spiral shell
The supply-demand relationship of rod-type air compressor tolerance is mainly shown as the change of pressure at expulsion, when capacity just meets production gas
When requiring, gas storage pressure keeps constant to amount, but unbalanced due to production air quantity, and installed capacity need to be according to producing maximum using
Air quantity simultaneously leaves surplus design, therefore in actual motion, air compressor wind supply quantity uses air quantity much larger than actual.If air compressor
Still constant speed operating, then the gas pressure in air accumulator is increasing, when pressure inside the tank rises and reaches setting pressure, general employing
Two kinds of methods：One kind is that air compressor off-load runs (closing air inlet valve), does not produce compressed gas, and motor is in unloaded fortune
Turn, its power consumption is still the 30%～50% of full load, also air compressor machine is large rotating inertia load, empty load of motor starts when institute
The power needing is roughly equivalent to consumed 2-3 times of full-load run, and run time is about 5-60S, controls capacity in Fraquent start
When, big to electrical network impact, energy consumption substantially increases, and this part electric energy is also wasted to be destroyed；Another method is off sky
Air compressor runs, but will bring the frequent starting of motor.The No Load Start electric current of air compressor is about specified electricity
5～7 times of stream, larger to electrical network and other electrical equipment impact, so that the service life of air compressor also can be shortened simultaneously.For
Meet production equipment gas requirement, in air accumulator, air operating pressure is typically set to 1.05～1.2MPa, and pressure setting range is too
Big then pipeline high pressure can be formed, high transmission loss, gas leakage, and also air pressure wide fluctuations cannot meet modern production process
Demand.
Utility model content
The purpose of this utility model is to overcome drawbacks described above, provide a kind of can constant pressure air feeding save the pneumatics of electric energy
Machine group control system.
In order to solve above-mentioned technical problem, the technical solution adopted in the utility model is：
A kind of air compressor machine group control system, including man-machine interface, PLC arithmetic and control unit, variable frequency adjustment air compressor machine, power frequency pneumatics
Unit, pressure sensor, recording instrument without paper and air accumulator, described power frequency air-compressor set is connected by more than one power frequency air compressor machine
Composition, described man-machine interface electrically connected with PLC arithmetic and control unit, described PLC arithmetic and control unit respectively with variable frequency adjustment air compressor machine
Electrically connect with power frequency air-compressor set, described variable frequency adjustment air compressor machine is connected with air accumulator after being connected with power frequency air-compressor set respectively,
Described pressure sensor is arranged on air accumulator, and described pressure sensor is electrically connected with recording instrument without paper, described recording instrument without paper
Electrically connect with PLC arithmetic and control unit.
The beneficial effects of the utility model are：Can arbitrarily control and adjust air compressor group power output, it is to avoid power consumption wave
Take, and will not frequent starting motor, reduce electric energy loss, reduce impact to electrical network, the system can be adjusted in pressure limit
Section compressor loads situation, machine LOADING RATES, up to 95%, reaches constant pressure air feeding and the effect of saving electric energy.
Brief description
Fig. 1 is the structure chart of the utility model embodiment air compressor machine group control system.
Label declaration：
1st, man-machine interface；2nd, PLC arithmetic and control unit；3rd, variable frequency adjustment air compressor machine；4th, power frequency air-compressor set；5th, pressure sensing
Device；6th, recording instrument without paper；7th, air accumulator；8th, remote activation end；41st, power frequency air compressor machine.
Specific embodiment
By describing technology contents of the present utility model, structural feature in detail, being realized purpose and effect, below in conjunction with enforcement
Mode simultaneously coordinates accompanying drawing to be explained in detail.
The design of the utility model most critical is：The system passes through the phase of variable frequency adjustment air compressor machine and power frequency air-compressor set
Mutually coordinate, compressor loads situation can be adjusted in pressure limit, machine LOADING RATES, up to 95%, reaches constant pressure air feeding and saving
The effect of electric energy.
Refer to shown in Fig. 1, the air compressor machine group control system of the present embodiment, including man-machine interface 1, PLC arithmetic and control unit 2,
Variable frequency adjustment air compressor machine 3, power frequency air-compressor set 4, pressure sensor 5, recording instrument without paper 6 and air accumulator 7, described power frequency air compressor machine
Group 4 is composed in series by more than one power frequency air compressor machine 41, and described man-machine interface 1 is electrically connected with PLC arithmetic and control unit 2, described
PLC arithmetic and control unit 2 is electrically connected with variable frequency adjustment air compressor machine 3 and power frequency air-compressor set 4 respectively, described variable frequency adjustment air compressor machine 3
It is connected with air accumulator 7 respectively after being connected with power frequency air-compressor set 4, described pressure sensor 5 is arranged on air accumulator 7, described pressure
Force snesor 5 is electrically connected with recording instrument without paper 6, and described recording instrument without paper 6 is electrically connected with PLC arithmetic and control unit 2.
The air compressor machine team control system control method of the present embodiment, comprises the following steps：
Step 1, startup air compressor machine group control system, described air compressor machine group control system includes man-machine interface 1, PLC operation control
Device 2, variable frequency adjustment air compressor machine 3, power frequency air-compressor set 4, pressure sensor 5, recording instrument without paper 6 and air accumulator 7, described power frequency is empty
Press group 4 is composed in series by more than one power frequency air compressor machine 41, and described man-machine interface 1 is electrically connected with PLC arithmetic and control unit 2,
Described PLC arithmetic and control unit 2 is electrically connected with variable frequency adjustment air compressor machine 3 and power frequency air-compressor set 4 respectively, described variable frequency adjustment pneumatics
Machine 3 is connected with air accumulator 7 after being connected with power frequency air-compressor set 4 respectively, and described pressure sensor 5 is arranged on air accumulator 7, described
Pressure sensor 5 is electrically connected with recording instrument without paper 6, and described recording instrument without paper 6 is electrically connected with PLC arithmetic and control unit 2；
Step 2, man-machine interface 1 receive setup pressure value and are transferred to PLC arithmetic and control unit 2, start variable frequency adjustment empty
Press 3 full-load run is pressurizeed to air accumulator 7, and after setting time, pressure sensor 5 measures the actual pressure value in air accumulator 7
And transmitted to PLC arithmetic and control unit 2 by recording instrument without paper 6；
Step 3, contrast setup pressure value and actual pressure value；If setup pressure value is less than actual pressure value, enter step
Rapid 4；If setup pressure value is more than actual pressure value, enter step 5；
Step 4, the startup interior idle power frequency air compressor machine 41 of power frequency air-compressor set 4, after setting time, enter step
Rapid 3；
Step 5, PLC arithmetic and control unit 2 compare actual pressure value and setup pressure value in real time, and are adjusted according to comparing result
Variable frequency adjustment air compressor machine 3 power, until actual pressure value is identical with setup pressure value.
Knowable to foregoing description, the beneficial effects of the utility model are：Can arbitrarily control and adjust air compressor group output
Power, it is to avoid power wastage, and will not frequent starting motor, reduce electric energy loss, reduce impact to electrical network, the system can
Adjust compressor loads situation in pressure limit, machine LOADING RATES, up to 95%, reaches constant pressure air feeding and the effect of saving electric energy
Really.
Further, more than one remote activation end 8, described remote activation end 8 and PLC arithmetic and control unit 2 are also included
Electrical connection.
Seen from the above description, also include more than one remote activation end 8, the remotely control of achievable machine, be easy to
Field management and operation in factory.
Further, in described power frequency air-compressor set 4, the quantity of power frequency air compressor machine 41 is three.
Further, described setting time is 20 seconds.
Refer to shown in Fig. 1, embodiment one of the present utility model is：
A kind of air compressor machine group control system, including man-machine interface 1, PLC arithmetic and control unit 2, variable frequency adjustment air compressor machine 3, power frequency
Air-compressor set 4, pressure sensor 5, recording instrument without paper 6 and air accumulator 7, described power frequency air-compressor set 4 is by more than one power frequency
Air compressor machine 41 is composed in series, and described man-machine interface 1 is electrically connected with PLC arithmetic and control unit 2, described PLC arithmetic and control unit 2 respectively with
Variable frequency adjustment air compressor machine 3 and power frequency air-compressor set 4 electrically connect, after described variable frequency adjustment air compressor machine 3 is connected with power frequency air-compressor set 4
It is connected with air accumulator 7 respectively, described pressure sensor 5 is arranged on air accumulator 7, described pressure sensor 5 and recording instrument without paper 6
Electrical connection, described recording instrument without paper 6 is electrically connected with PLC arithmetic and control unit 2, also includes more than one remote activation end 8, described
Remote activation end 8 is electrically connected with PLC arithmetic and control unit 2, and in described power frequency air-compressor set 4, the quantity of power frequency air compressor machine is three.
In sum, the air compressor machine group control system that the utility model provides, can arbitrarily control and adjust air compressor group output
Power, it is to avoid power wastage, and will not frequent starting motor, reduce electric energy loss, reduce impact to electrical network, the system can
Adjust compressor loads situation in pressure limit, machine LOADING RATES, up to 95%, reaches constant pressure air feeding and the effect of saving electric energy
Really, also include more than one remote activation end, the remotely control of achievable machine, be easy to field management and operation in factory.
The foregoing is only embodiment of the present utility model, not thereby limit the scope of the claims of the present utility model, every
The equivalent structure made using the utility model specification and accompanying drawing content or equivalent flow conversion, or be directly or indirectly used in
Other related technical fields, are all included in the same manner in scope of patent protection of the present utility model.
Claims (3)
1. a kind of air compressor machine group control system it is characterised in that：Including man-machine interface, PLC arithmetic and control unit, variable frequency adjustment pneumatics
Machine, power frequency air-compressor set, pressure sensor, recording instrument without paper and air accumulator, described power frequency air-compressor set is by more than one work
Frequency air compressor machine is composed in series, and described man-machine interface is electrically connected with PLC arithmetic and control unit, described PLC arithmetic and control unit respectively with change
Frequency modulation section air compressor machine and power frequency air-compressor set electrical connection, described variable frequency adjustment air compressor machine be connected with power frequency air-compressor set after respectively with
Air accumulator connects, and described pressure sensor is arranged on air accumulator, and described pressure sensor is electrically connected with recording instrument without paper, described
Recording instrument without paper is electrically connected with PLC arithmetic and control unit.
2. air compressor machine group control system according to claim 1 it is characterised in that：Also include more than one remote activation
End, described remote activation end is electrically connected with PLC arithmetic and control unit.
3. air compressor machine group control system according to claim 1 it is characterised in that：Power frequency pneumatics in described power frequency air-compressor set
The quantity of machine is three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620866141.6U CN205937070U (en) | 2016-08-11 | 2016-08-11 | Air compressor machine group control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620866141.6U CN205937070U (en) | 2016-08-11 | 2016-08-11 | Air compressor machine group control system |
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| CN205937070U true CN205937070U (en) | 2017-02-08 |
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| CN201620866141.6U Active CN205937070U (en) | 2016-08-11 | 2016-08-11 | Air compressor machine group control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050634A (en) * | 2016-08-11 | 2016-10-26 | 福建景丰科技有限公司 | Air compressor group control system and control method thereof |
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2016
- 2016-08-11 CN CN201620866141.6U patent/CN205937070U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050634A (en) * | 2016-08-11 | 2016-10-26 | 福建景丰科技有限公司 | Air compressor group control system and control method thereof |
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