CN106593841B - A kind of centralized control system and method about air compression system - Google Patents

A kind of centralized control system and method about air compression system Download PDF

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Publication number
CN106593841B
CN106593841B CN201611189304.2A CN201611189304A CN106593841B CN 106593841 B CN106593841 B CN 106593841B CN 201611189304 A CN201611189304 A CN 201611189304A CN 106593841 B CN106593841 B CN 106593841B
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control system
relay
module
touch screen
main website
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CN106593841A (en
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涂天明
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Zhejiang Geely Holding Group Co Ltd
Hunan Geely Automobile Parts Co Ltd
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Zhejiang Geely Holding Group Co Ltd
Hunan Geely Automobile Parts Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06Control using electricity

Abstract

The invention discloses a kind of centralized control systems and method about air compression system.It includes main website control system, from station control system and touch screen, the touch screen is connect with main website control system, the main website control system and optoelectronic transceivers are equipped with from station control system, the optoelectronic transceivers in the main website control system are connect with from the optoelectronic transceivers on station control system by multimode fibre.The beneficial effects of the invention are as follows:By to the one-touch operation on touch screen, realizing and carrying out real-time control to more complete equipments, the labor intensity of employee is greatly reduced, while effectively reducing the energy consumption of equipment;Lifting means service life, while later stage overhaul being facilitated to maintain;The management to work operating personnel convenient for administrative staff;The authentic and valid record of alarm logging on touch screen simultaneously preserves lower equipment fault history and fundamental cause;There is touch screen very strong mobile working ability, the range for operating monitoring to greatly promote.

Description

A kind of centralized control system and method about air compression system
Technical field
The present invention relates to air compression system correlative technology fields, refer in particular to a kind of centralized control system about air compression system With method.
Background technology
The pneumatics control system having at present on the market is generally combined by controller with PC machine, and control system is general only Including air compressor machine, and not comprising valve, water pump, the cooling driers on each air compression pipeline.In order to ensure to produce, operating personnel must carry Before set aside some time to open the air compressor machine that is welded because operating personnel on duty only have a people, at a distance back and forth have the regular hour Difference, another air compression station will be removed open by ending one side air compression station also, so labor intensity is caused to greatly increase, equipment energy consumption increases greatly Add, work at the same time efficiency and also reduce, cost directly increases, and control range has only only included air compressor machine, while PC machine is general It is not easy to moving operation, field device cannot be adjusted in real time.
Chinese patent Authorization Notice No.:CN 203560070U, authorized announcement date on April 23rd, 2014 disclose a kind of embedding Enter formula air compressor machine Centralized Controller, including integrated touch screen, analog quantity conversion module, pressure sensor, pressure sensor peace Mounted in user on gas main line, pressure sensor sends the operation data for the air compressor machine being collected into analog quantity modulus of conversion Pressure signal is converted to and sends integrated touch screen after digital signal to by block, analog quantity conversion module, on integrated touch screen Equipped with air compressor machine communication interface, air compressor machine communication interface carries out data transmission with several air compressor machines, and each air compressor machine is supplied gas Pipeline is connected to user on gas main line.The utility model is disadvantageous in that control range has only only included pneumatics Machine cannot carry out entire air compression system orderly control, increase so as to cause equipment energy consumption, and service life reduces, and increases The expense of later maintenance.
Invention content
The present invention is in order to overcome the above deficiencies in the prior art, it is high and use to provide a kind of capacity utilization The centralized control system and method about air compression system of long lifespan.
To achieve the goals above, the present invention uses following technical scheme:
A kind of centralized control system about air compression system, including main website control system, from station control system and touch screen, The touch screen is connect with main website control system, the main website control system and photoelectricity receipts is equipped with from station control system Device is sent out, the optoelectronic transceivers in the main website control system are connected with from the optoelectronic transceivers on station control system by multimode fibre It connects.
The present invention realizes one between different air compression systems by main website control system and from the setting of station control system Body formula operates, and ensures that whole equipment can be orderly run, improves the utilization rate of equipment;Setting by touch screen simultaneously There is very strong mobile working ability, the range for operating monitoring to greatly promote, realize the operating in a key of air compression system for meter, And real time monitoring is realized to whole service equipment, the labor intensity of operating personnel is greatly reduced, effectively reduces and set Standby energy consumption, while the service life of equipment is improved, reduce the cost of later maintenance.
Preferably, the main website control system includes the first D.C. regulated power supply, the second D.C. regulated power supply, main mould Analog quantity module, main digital module, host CPU, main relay group, primary pressure sensor and AC power, the touch screen and Optoelectronic transceivers are connect with host CPU, and one end of first D.C. regulated power supply connects AC power, and first direct current is steady The other end of voltage source is separately connected main analog module and main digital module, and one end of second D.C. regulated power supply connects AC power is connect, the other end of second D.C. regulated power supply is separately connected host CPU and main relay group, and the main mould is quasi- Amount module, main digital module and main relay group are connect with host CPU, the primary pressure sensor and main analog module Connection.
Preferably, the main relay group includes several air compressor machine relays, several cooling driers relays, several follows Ring water pump relay and several electronic valve relays, the air compressor machine relay, cooling driers relay, water circulating pump relay Include coil and normally opened contact with electronic valve relay, one end of the coil connects the second D.C. regulated power supply, the line The output end and main digital module of the other end connection host CPU of circle, the input of one end connection host CPU of the normally opened contact End, the other end ground connection of the normally opened contact.
Preferably, it is described from station control system include third D.C. regulated power supply, the 4th D.C. regulated power supply, from mould Analog quantity module, from digital module, from CPU, from relay group, from pressure sensor and AC power, the optoelectronic transceiver Device is connect with from CPU, and one end of the third D.C. regulated power supply connects AC power, the third D.C. regulated power supply it is another One end is separately connected from analog module and from digital module, and one end of the 4th D.C. regulated power supply connects alternating current Source, the other end of the 4th D.C. regulated power supply are separately connected from CPU and from relay groups, it is described from analog module, It is connect with from CPU from digital module and from relay group, it is described to be connect from pressure sensor with from analog module.
Preferably, described include several air compressor machine relays, several cooling driers relays, several follow from relay group Ring water pump relay and several electronic valve relays, the air compressor machine relay, cooling driers relay, water circulating pump relay Include coil and normally opened contact with electronic valve relay, one end of the coil connects the 4th D.C. regulated power supply, the line From the output end of CPU and from digital module, one end of the normally opened contact connects the input from CPU for the other end connection of circle End, the other end ground connection of the normally opened contact.
Preferably, further including alarm module, memory module and USB interface, the report are equipped in the touch screen Alert module is connect with touch screen, and the optoelectronic transceivers are equipped with reserved port.It, can be real-time by the design of alarm module Abnormal signal is informed to operating personnel, can take timely measure to eliminate failure;It, can by the design of memory module The data of real time monitoring are preserved, in order to carry out the data analysis of whole system, while by the design of USB interface come Downloading data is used for the long-term preservation of data.
The present invention also provides a kind of control methods of the centralized control system about air compression system, specifically include following step Suddenly:
(1) operating personnel are by touch screen one-key start main website control system and from station control system, main website control system Operation enters in step (2), is entered in step (5) from station control system operation;
(2) the air compressor machine relay, cooling driers relay of main website control system, water circulating pump relay and motor-driven valve relay Normally opened contact is closed on device, and electric signal is fed back to the input terminal of host CPU;
(3) host CPU is handled it by reading the electric signal of input terminal, and handling result is shown on the touchscreen, It informs the operating status of equipment in operating personnel's current master station control system, and the electric signal of processing is stored in depositing for touch screen It stores up in module;
(4) primary pressure sensor detects the operating status of equipment in main website control system in real time, and electric signal is passed through mould Analog quantity module carries out data conversion, while being sent to host CPU and carrying out operation, obtains current actual pressure value and passes through touch screen It is shown, and the pressure value of processing is stored in the memory module of touch screen, and return to step (2);
(5) from the air compressor machine relay of station control system, cooling driers relay, water circulating pump relay and motor-driven valve relay Normally opened contact is closed on device, and electric signal is fed back to the input terminal from CPU;
(6) it is handled from CPU by reading the electric signal of input terminal, handling result by from station control system Optoelectronic transceivers send the optoelectronic transceivers of main website control system to through multimode fibre, and host CPU receives corresponding signal and later will Its show inform on the touchscreen operating personnel currently from station control system equipment operating status, and by the telecommunications of processing It number is stored in the memory module of touch screen;
(7) it detects the operating status of equipment in main website control system in real time from pressure sensor, and electric signal is passed through into mould Analog quantity module carries out data conversion, while being sent to from CPU and carrying out operation, obtains current actual pressure value by from stand control system The optoelectronic transceivers of system send the optoelectronic transceivers of main website control system to through multimode fibre, host CPU receive corresponding signal it Afterwards it will be shown on touch screen, and the pressure value of processing is stored in the memory module of touch screen, and returns to step (5)。
Preferably, in step (3), when host CPU receives unit exception signal in main website control system, host CPU By the processing to abnormal signal, handling result is exported by the output end and digital module of host CPU, the control of control main website The air compressor machine relay of system, the coil of cooling driers relay, water circulating pump relay and electronic valve relay, main website is controlled Corresponding equipment is closed in system, and by touch screen output abnormality signal, is carried out alarm by alarm module and is informed operation Personnel.
Preferably, in step (6), when receiving unit exception signal in main website control system from CPU, from CPU By the processing to abnormal signal, handling result is exported by output end from CPU and digital module, control is from stand control The air compressor machine relay of system, the coil of cooling driers relay, water circulating pump relay and electronic valve relay, will be from stand control Corresponding equipment is closed in system, and by touch screen output abnormality signal, is carried out alarm by alarm module and is informed operation Personnel.
Preferably, in step (4) and step (7), when primary pressure sensor or the pressure received from pressure sensor When force value exception, by touch screen output abnormality signal, alarm is carried out by alarm module and informs operating personnel.
The beneficial effects of the invention are as follows:By to the one-touch operation on touch screen, realizing and being carried out in fact to more complete equipments When control, greatly reduce the labor intensity of employee, while effectively reducing the energy consumption of equipment;Operating personnel can pass through touch screen Monitored results, field device is adjusted in real time;It ensure that every equipment can uniformly come into operation, lifting means uses the longevity Life, while later stage overhaul being facilitated to maintain;Log on touch screen can be authentic and valid record equipment start-stop time point, just In the management that administrative staff work to operating personnel;The authentic and valid record of alarm logging on touch screen and preserve lower equipment therefore Hinder history and fundamental cause;There is touch screen very strong mobile working ability, the range for operating monitoring to greatly promote.
Description of the drawings
Fig. 1 is the circuit diagram of the present invention.
In figure:1. host CPU, 2. main digital modules, 3. main analog modules, 4. first D.C. regulated power supplies, 5. second D.C. regulated power supply, 6. touch screens, 7. from CPU, and 8. from digital module, and 9. from analog module, and 10. third DC voltage-stabilizings are electric Source, 11. the 4th D.C. regulated power supplies, 12. AC powers, 13. main relay groups, 14. from relay group, 15. optoelectronic transceivers, 16. multimode fibre.
Specific implementation mode
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment:
The present invention will be further described with reference to the accompanying drawings and detailed description.
In embodiment as described in Figure 1, a kind of centralized control system about air compression system, including main website control system, From station control system and touch screen 6, touch screen 6 is connect with main website control system, main website control system and from station control system Be equipped with optoelectronic transceivers 15, the optoelectronic transceivers 15 in main website control system with from the optoelectronic transceivers 15 on station control system It is connected by multimode fibre 16.Wherein:Further include alarm module, memory module and USB interface are equipped in touch screen 6, mould of alarming Block is connect with touch screen 6, and optoelectronic transceivers 15 are equipped with reserved port.
Main website control system includes the first D.C. regulated power supply 4, the second D.C. regulated power supply 5, main analog module 3, master Digital module 2, host CPU 1, main relay group 13, primary pressure sensor and AC power 12, touch screen 6 and optoelectronic transceivers 15 connect with host CPU 1, and one end of the first D.C. regulated power supply 4 connects AC power 12, the first D.C. regulated power supply 4 it is another One end is separately connected main analog module 3 and main digital module 2, and one end of the second D.C. regulated power supply 5 connects AC power 12, the other end of the second D.C. regulated power supply 5 is separately connected host CPU 1 and main relay group 13, main analog module 3, main number Amount module 2 and main relay group 13 are connect with host CPU 1, and primary pressure sensor is connect with main analog module 3.Main relay Group 13 includes several air compressor machine relays, several cooling driers relays, several water circulating pump relays and several motor-driven valve relays Device, air compressor machine relay, cooling driers relay, water circulating pump relay and electronic valve relay include coil and it is normally opened touch One end of point, coil connects the second D.C. regulated power supply 5, the output end and main digital quantity mould of the other end connection host CPU 1 of coil Block 2, the input terminal of one end connection host CPU 1 of normally opened contact, the other end ground connection of normally opened contact.
From station control system include third D.C. regulated power supply 10, the 4th D.C. regulated power supply 11, from analog module 9, From digital module 8, from CPU7, from relay group 14, from pressure sensor and AC power 12, optoelectronic transceivers 15 with from One end of CPU7 connections, third D.C. regulated power supply 10 connects AC power 12, the other end point of third D.C. regulated power supply 10 It not connecting from analog module 9 and from digital module 8, one end of the 4th D.C. regulated power supply 11 connects AC power 12, the The other end of four D.C. regulated power supplies 11 is separately connected from CPU7 and from relay group 14, from analog module 9, from digital quantity mould It block 8 and connect with from CPU7 from relay group 14, is connect from pressure sensor with from analog module 9.From relay group 14 It is empty including several air compressor machine relays, several cooling driers relays, several water circulating pump relays and several electronic valve relays Press relay, cooling driers relay, water circulating pump relay and electronic valve relay include coil and normally opened contact, coil One end connect the 4th D.C. regulated power supply 11, the other end of coil is connected from the output end of CPU7 and from digital module 8, often One end connection of contact is opened from the input terminal of CPU7, the other end ground connection of normally opened contact.
The present invention also provides a kind of control methods of the centralized control system about air compression system, specifically include following step Suddenly:
(1) operating personnel are by 6 one-key start main website control system of touch screen and from station control system, main website control system Operation enters in step (2), is entered in step (5) from station control system operation;
(2) the air compressor machine relay, cooling driers relay of main website control system, water circulating pump relay and motor-driven valve relay Normally opened contact is closed on device, and electric signal is fed back to the input terminal of host CPU 1;
(3) host CPU 1 is handled it by reading the electric signal of input terminal, and handling result is shown in touch screen 6 On, inform the operating status of equipment in operating personnel's current master station control system, and the electric signal of processing is stored in touch screen 6 Memory module in;When host CPU 1 receives unit exception signal in main website control system, host CPU 1 is by abnormal signal Processing, handling result is exported by the output end and digital module of host CPU 1, the air compressor machine of control main website control system The coil of relay, cooling driers relay, water circulating pump relay and electronic valve relay, will be corresponding in main website control system Equipment close, and by 6 output abnormality signal of touch screen, alarm is carried out by alarm module and informs operating personnel;
(4) primary pressure sensor detects the operating status of equipment in main website control system in real time, and electric signal is passed through mould Analog quantity module carries out data conversion, while being sent to host CPU 1 and carrying out operation, obtains current actual pressure value and passes through touch Screen 6 is shown, and the pressure value of processing is stored in the memory module of touch screen 6, and returns to step (2);
(5) from the air compressor machine relay of station control system, cooling driers relay, water circulating pump relay and motor-driven valve relay Normally opened contact is closed on device, and electric signal is fed back to the input terminal from CPU7;
(6) it is handled from CPU7 by reading the electric signal of input terminal, handling result by from station control system Optoelectronic transceivers 15 send the optoelectronic transceivers 15 of main website control system to through multimode fibre 16, host CPU 1 receives corresponding letter Number after it will be shown on touch screen 6, inform operating personnel currently from station control system equipment operating status, and will place The electric signal of reason is stored in the memory module of touch screen 6;When receiving unit exception signal in main website control system from CPU7 When, from CPU7 by the processing to abnormal signal, handling result is exported by output end from CPU7 and digital module, control The coil from the air compressor machine relay of station control system, cooling driers relay, water circulating pump relay and electronic valve relay is made, Corresponding equipment from station control system is closed, and by 6 output abnormality signal of touch screen, is reported by alarm module Operating personnel are known in warning;
(7) it detects the operating status of equipment in main website control system in real time from pressure sensor, and electric signal is passed through into mould Analog quantity module carries out data conversion, while being sent to from CPU7 and carrying out operation, obtains current actual pressure value by from stand control The optoelectronic transceivers 15 of system send the optoelectronic transceivers 15 of main website control system to through multimode fibre 16, and host CPU 1 receives phase It will be shown on touch screen 6 after induction signal, and the pressure value of processing is stored in the memory module of touch screen 6, and returned Return to step (5).
Wherein:In step (4) and step (7), when primary pressure sensor or the pressure value received from pressure sensor When abnormal, by 6 output abnormality signal of touch screen, alarm carried out by alarm module and informs operating personnel.
When main website control system is application air compression system, by 6 one-key start of touch screen, water circulating pump starts, and examines in real time It surveys whether solenoid valve is opened, corresponding signal is not detected whithin a period of time and then carries out alarm and includes touching by abnormal signal On screen 6;Simultaneously with this, delay a period of time starts cooling driers, later delay a period of time, is starting No.1 air compressor machine and is prolonging When, starting No. two air compressor machines, pressure sensor detects the superpressure of No.1 air compressor machine and No. two air compressor machines, when pressure sensor is examined When measuring odd-times superpressure, stop pressure of No.1 air compressor machine when pressure is less than load, No.1 air compressor machine comes into operation automatically;When When pressure sensor detects even-times superpressure, stop pressure of No. two air compressor machines when pressure is less than load, No. two pneumatics Machine comes into operation automatically.If the system detects that the number of starts reaches 3 times in same air compressor machine 1 hour, then the air compressor machine can not open Dynamic (preventing air compressor machine from spitting oil).Meanwhile the air compressor machine in the application air compression system is 2 standby with 1, presses one-key start for the second time When, it will so that No. two air compressor machines is first started, No. three air compressor machines of subsequent start-up, superpressure, which is shut down, equally presses above-mentioned principle, uniform stop and start. To be that No. three air compressor machines first start and restart No.1 air compressor machine when system 3 times starts, water circulating pump is 1 standby with 1, recycling, Mode is the same with air compressor machine starting pinciple, Infinite Cyclic start and stop.
It is when being welded air compression system from station control system, by 6 one-key start of touch screen, water circulating pump starts, and examines in real time It surveys whether solenoid valve is opened, corresponding signal is not detected whithin a period of time and then carries out alarm and includes touching by abnormal signal On screen 6;Simultaneously with this, delay a period of time starts cooling driers, later delay a period of time, is starting No.1 air compressor machine and is prolonging When, starting No. two air compressor machines and be delayed, is starting No. three air compressor machines and be delayed, starting No. four air compressor machines, pressure sensor The superpressure number for detecting air compressor machine stops No.1 air compressor machine and adds until pressure is less than when pressure sensor detects 1 superpressure Pressure when load, No.1 air compressor machine come into operation automatically;When pressure sensor detects 2 superpressures, stop No. three air compressor machines until Pressure when pressure is less than load, No. three air compressor machines come into operation automatically;When pressure sensor detects 3 superpressures, stop No. five Pressure of air compressor machine when pressure is less than load, No. five air compressor machines come into operation automatically.If the system detects that same air compressor machine 1 is small When the interior number of starts reach 3 times, then the air compressor machine can not start and (prevent air compressor machine from spitting oil).Meanwhile the air compression system that is welded Air compressor machine is 4 standby with 1, wherein No. two air compressor machines are 75KW small air compressors, starting can all come into operation every time.Next key is pressed for the second time to open When dynamic, it will so that No. three air compressor machines is first started, No. four air compressor machines of subsequent start-up press one-key start, No. four air compressor machines for the third time First start, restart No. five air compressor machines, superpressure, which is shut down, equally presses above-mentioned principle, uniform stop and start.Water pump is 2 standby with 1, and cycle makes With mode is the same with air compressor machine starting pinciple, Infinite Cyclic start and stop.
Wherein:Host CPU 1 and from CPU7 the rising edge of the normally opened contact of relay runs equipment with failing edge signal Beginning and ending time is counted, meanwhile, host CPU 1 and also failing edge signal will count and warning output from CPU7, simultaneously will Alarm content according to the particular content actually stopped feed back and with alarm call.The above statistical result deposit touch screen 6 It, can be by USB interface with EXEL for useful run signal or alarm signal in memory module (data can save one week) Form be output to long-term preservation on other carrier by USB flash disk and compares
Specific embodiment described herein is only an example for the spirit of the invention.Technology belonging to the present invention is led The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although rotor is used more herein, the terms such as stator, stringing opening, cavity, drive shaft are not precluded Use the possibility of other terms.The use of these items is only for more easily describe and explain the essence of the present invention;? They are construed to any one of the additional limitations and are all disagreed with spirit of that invention.

Claims (9)

1. a kind of centralized control system about air compression system, characterized in that including main website control system, from station control system and Touch screen (6), the touch screen (6) are connect with main website control system, the main website control system and from station control system On be equipped with optoelectronic transceivers (15), the optoelectronic transceivers (15) in the main website control system with from the light on station control system Electric transceiver (15) is connected by multimode fibre (16), and the main website control system includes the first D.C. regulated power supply (4), the Two D.C. regulated power supplies (5), main analog module (3), main digital module (2), host CPU (1), main relay group (13), master Pressure sensor and AC power (12), optoelectronic transceivers (15) on the touch screen (6) and main website control system with Host CPU (1) connects, one end connection AC power (12) of first D.C. regulated power supply (4), the first DC voltage-stabilizing electricity The other end in source (4) is separately connected main analog module (3) and main digital module (2), second D.C. regulated power supply (5) One end connection AC power (12), the other end of second D.C. regulated power supply (5) be separately connected host CPU (1) and lead after Electric appliance group (13), the main analog module (3), main digital module (2) and main relay group (13) with host CPU (1) Connection, the primary pressure sensor are connect with main analog module (3).
2. a kind of centralized control system about air compression system according to claim 1, characterized in that the main relay Device group (13) includes several air compressor machine relays, several cooling driers relays, several water circulating pump relays and several motor-driven valves Relay, the air compressor machine relay, cooling driers relay, water circulating pump relay and electronic valve relay include coil And normally opened contact, one end of the coil are all connected with the second D.C. regulated power supply (5), the other end of the coil is all connected with master The output end and main digital module (2) of CPU (1), one end of the normally opened contact is all connected with the input terminal of host CPU (1), described The other end of normally opened contact is grounded.
3. a kind of centralized control system about air compression system according to claim 1, characterized in that the slave station control System processed includes third D.C. regulated power supply (10), the 4th D.C. regulated power supply (11), from analog module (9), from digital quantity Module (8), from CPU (7), from relay group (14), from pressure sensor and AC power (12), it is described from station control system Optoelectronic transceivers (15) connect with from CPU (7), the connection of one end of the third D.C. regulated power supply (10) is from station control system AC power (12), the other end of the third D.C. regulated power supply (10) is separately connected from analog module (9) and from number Word amount module (8), one end of the 4th D.C. regulated power supply (11) connects the AC power (12) from station control system, described The other end of 4th D.C. regulated power supply (11) is separately connected from CPU (7) and from relay group (14), described from analog quantity mould Block (9) is connect with from CPU (7) from digital module (8) and from relay group (14), it is described from pressure sensor with from Analog module (9) connects.
4. a kind of centralized control system about air compression system according to claim 3, characterized in that described from relay Device group (14) includes several air compressor machine relays, several cooling driers relays, several water circulating pump relays and several motor-driven valves Relay, the air compressor machine relay, cooling driers relay, water circulating pump relay and electronic valve relay include coil And normally opened contact, one end of the coil are all connected with the 4th D.C. regulated power supply (11), the other end of the coil be all connected with from The output end of CPU (7) and from digital module (8), one end of the normally opened contact is all connected with the input terminal from (7) CPU, described The other end of normally opened contact is grounded.
5. a kind of centralized control system about air compression system according to claim 1 or 2 or 3, characterized in that further include Alarm module, the touch screen (6) is interior to be equipped with memory module and USB interface, and the alarm module connects with touch screen (6) It connects, the optoelectronic transceivers are equipped with reserved port on (15).
6. a kind of control method of centralized control system about air compression system as described in claims 1 or 2 or 3, feature It is to specifically comprise the following steps:
(1) by touch screen one-key start main website control system and from station control system, main website control system is run operating personnel It enters in step (2), is entered in step (5) from station control system operation;
(2) on the air compressor machine relay, cooling driers relay of main website control system, water circulating pump relay and electronic valve relay Normally opened contact is closed, and electric signal is fed back to the input terminal of host CPU;
(3) host CPU is handled it by reading the electric signal of input terminal, and handling result is shown on the touchscreen, is informed The operating status of equipment in operating personnel's current master station control system, and the electric signal of processing is stored in the storage mould of touch screen In block;
(4) primary pressure sensor detects the operating status of equipment in main website control system in real time, and electric signal is passed through analog quantity Module carries out data conversion, while being sent to host CPU and carrying out operation, obtains current actual pressure value and is carried out by touch screen It has been shown that, and the pressure value of processing is stored in the memory module of touch screen, and return to step (2);
(5) from the air compressor machine relay of station control system, cooling driers relay, water circulating pump relay and electronic valve relay Normally opened contact is closed, and electric signal is fed back to the input terminal from CPU;
(6) it is handled from CPU by reading the electric signal of input terminal, handling result by the photoelectricity from station control system Transceiver sends the optoelectronic transceivers of main website control system to through multimode fibre, and host CPU is shown after receiving corresponding signal Show inform on the touchscreen operating personnel currently from station control system equipment operating status, and the electric signal of processing is deposited Storage is in the memory module of touch screen;
(7) it detects the operating status of equipment in main website control system in real time from pressure sensor, and electric signal is passed through into analog quantity Module carries out data conversion, while being sent to from CPU and carrying out operation, obtains current actual pressure value by from station control system Optoelectronic transceivers send the optoelectronic transceivers of main website control system to through multimode fibre, and host CPU receives corresponding signal and later will It shows on the touchscreen, and the pressure value of processing is stored in the memory module of touch screen, and returns to step (5).
7. a kind of control method of centralized control system about air compression system according to claim 6, characterized in that In step (3), when host CPU receives unit exception signal in main website control system, host CPU passes through the place to abnormal signal Reason is exported handling result by the output end and digital module of host CPU, the air compressor machine relay of control main website control system The coil of device, cooling driers relay, water circulating pump relay and electronic valve relay is set corresponding in main website control system It is standby to close, and by touch screen output abnormality signal, alarm is carried out by alarm module and informs operating personnel.
8. a kind of control method of centralized control system about air compression system according to claim 6, characterized in that In step (6), when receiving unit exception signal in main website control system from CPU, from CPU by to abnormal signal Handling result is exported by output end from CPU and digital module, controls the air compressor machine relay from station control system by reason The coil of device, cooling driers relay, water circulating pump relay and electronic valve relay is set corresponding from station control system It is standby to close, and by touch screen output abnormality signal, alarm is carried out by alarm module and informs operating personnel.
9. a kind of control method of centralized control system about air compression system according to claim 6, characterized in that In step (4) and step (7), when primary pressure sensor or the pressure value exception received from pressure sensor, pass through touch Shield output abnormality signal, carrying out alarm by alarm module informs operating personnel.
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