CN201013597Y - Oil free helical lobe compressor controller - Google Patents
Oil free helical lobe compressor controller Download PDFInfo
- Publication number
- CN201013597Y CN201013597Y CNU2007200684478U CN200720068447U CN201013597Y CN 201013597 Y CN201013597 Y CN 201013597Y CN U2007200684478 U CNU2007200684478 U CN U2007200684478U CN 200720068447 U CN200720068447 U CN 200720068447U CN 201013597 Y CN201013597 Y CN 201013597Y
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- controller
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- master controller
- input interface
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model relates to a controller of an oil-free screw compressor, which includes a display, a master controller, a 4-AD sub-module as well as an 8 ER sub-module; the master controller is connected with the display; the standard module of the master controller is connected with the expansion mouth of 4 AD sub-module and 8 ER sub-module. The utility model has the beneficial effects of the utility model are that the ports of digital quantity and analog quantity have standby. When control requirement is increased for improvement of equipment functions, only the controller is modified slightly in terms of procedure; after the controller is electrified, the monitoring points are controlled such as phase sequence and sensor etc. The controller can be inspected only after the apparatus as well as the connections are proved to be correct in order to improve working effect, discover and solve problems in time; the corresponding input / output ports, the controller have the corresponding indications by indicator light. The working procedures of the controller can be understood better, which is helpful for analyzing and solving problems, and remote control can also be carried out for monitoring.
Description
Technical field
The utility model relates to a kind of controller, relates in particular to a kind of oil free screw compressor controller.
Background technique
Oil free screw compressor is a kind of purposes machinery very widely, in printing/weaving and heavy industry field, has obtained important use.
For a compressor, except the mechanical property of itself, also need to dispose the controller of a function admirable.
The controller of compressor of the prior art generally only can simply be controlled compressor, can't satisfy the needs of relevant industrial department.For example: phase sequence, sensor; Also just like the monitoring of temperature, oil temperature or the like some indexs; Again just like the remote monitoring problem.
Summary of the invention
The utility model technical issues that need to address have provided a kind of oil free screw compressor controller, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
The utility model comprises: a display device; Also comprise a master controller, a 4AD submodule and a 8ER submodule; Described master controller and display device join by connection; The standard module of master controller is connected with the expansion mouth of 4AD submodule, 8ER submodule respectively;
Described master controller can also comprise that one can be connected, be used to realize Central Control Room monitoring or the communication port that can link to each other with control with the internet remote diagnosis with user DCS system.
Compared with prior art, the beneficial effects of the utility model are: the port of digital quantity and analog amount all has standby, when making things convenient for the improvement of functions of the equipments need increase control to require, controller is revised a little getting final product on need only program; After controller powers on, the monitory point is monitored, as phase sequence, sensor etc., device itself and connect and errorlessly can pass through the controller self check, raising work effect is in time found and is dealt with problems; Corresponding input/output end port, controller all has the corresponding indication of tutorial light, and the work schedule of controller can reasonablely be understood, and analyzes and deals with problems helpful; Can also carry out remote monitoring.
Description of drawings
Fig. 1 is the utility model module map.
Fig. 2 uses the basic wiring diagram of electric installation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
As seen from Figure 1: the utility model comprises: a display device 1, it is characterized in that, and also comprise a master controller 2, a 4AD submodule 3 and a 8ER submodule 4; Described master controller 2 and display device 1 join by connection; The standard module of master controller is connected with the expansion mouth of 4AD submodule 3,8ER submodule 4 respectively;
Described 4AD submodule 3 comprises: the 8th analog amount input interface, the 5th analog amount input interface, the 7th analog amount input interface, the 6th analog amount input interface;
Described 8ER submodule 4 comprises: the 11 digital-quantity output interface, the 12 digital-quantity output interface, the 13 digital-quantity output interface, the 14 digital-quantity output interface, the 11 digital-quantity input interface, the 12 digital-quantity input interface, the 13 digital-quantity input interface, the 14 digital-quantity input interface;
Described master controller 2 comprises: the input interface of first digital quantity to the, ten digital quantities; The output interface of first digital quantity to the, ten digital quantities; First analog amount to the, four analog amount input interfaces;
Described master controller 2 can also comprise: detect first electric current and first current interface and phase sequence and detect interface;
Described master controller 2 can also comprise that one can be connected, be used to realize Central Control Room monitoring or the communication port that can link to each other with control with the internet remote diagnosis with user DCS system.
As seen from Figure 2, display device 1 has 5 tenminal blocks and 1 demonstration cable D shape head, is respectively applied for to show connection, RS-485 communication, the input of direct current 24V power supply.
The master controller tenminal block:
Be connected with communication cable between display device 1 and the controller 2.
1,2,3 is phase sequence and voltage input end; CT1 is main motor mutual inductor; CT2 is the blower fan mutual inductor; 18,19,20 is the delivery temperature input end; 16,17,18 is oily temperature input end; 13,15 is the exhaust pressure input end; 13,14 is the oil pressure input end.6,12 are switching value input common port; 11 go into for tight stopping transportation; 10 is the input of empty filter pressure reduction; 9 is the input of oil filter pressure reduction; 8 is oil level switch; 7 is main motor operation signal; 5 is the fan operation signal; 4 is the oil pump run signal; 3 is cooling water dehydration switch; 2 is low-water level switch; 1 is the high water level switch.22 is output relay common port COM1; 21 control D contactors; 20 control M contactors; 19 control S contactors; 18 control loaded valves; 17 control blower fans.16 is output relay common port COM2; 15 control oil pump contactors; 14 control drain valves; 13 water supply electromagnetic valves; 12 blowdown solenoid valves; 11 standby outputs 1.9 and 10,7 and 8,5 and 6 is three groups of direct current 24V power supply outputs.27,28 are the input of alternating current 220V power supply.26 is PE.
4AD submodule tenminal block:
3,4,5 is one-level temperature input end; 6,7,8 is secondary temperature input end; 9,11 is the intermediate voltage input end; 9,12 is the standby pressure input end.
8ER submodule tenminal block:
6 are switching value input common port; 7 is the remote activation switch; 8 is long-range stop switch; 9 is long-range loaded switches; 10 is long-range relief switch.2 is output relay common port COM; 5 are run signal output; 4 are the output of light fault signal; 3 attach most importance to fault outputs; 1 is standby output 2.11,12 is the input of direct current 24V power supply.
In the utility model master controller be used to control the motor of compressor short circuit, stall, phase shortage, overload, unbalance protection, motor is carried out start-stop control, operation control, air compressor is carried out phase sequence (the anti-reverse) protection, multi-point temp and pressure are carried out the Detection ﹠ Controling protection, regulate Rate of load condensate pilot pressure balanced protection automatically, this is the function of the standard module of master controller; The 4AD submodule is used to expand analog amount, increases the input port of analog amount.The 8ER submodule is used for expansion variable, increases the input/output end port of digital quantity.
Function of the present utility model and technical parameter
1. switching value:
The input of 14 way switch amounts, the output of 14 road relay switching variables;
2. analog amount:
The input of four road Pt100 temperature, input is sent in four tunnel 4～20mA change, two groups of three phase circuits inputs (supporting CT);
3. phase sequence input voltage:
Three-phase 380V;
4. controller power supply:
220V、50Hz、20VA；
5. demonstration range
A, delivery temperature, oil temperature :-40～160 ℃; Precision: ± 1 ℃;
B, one-level delivery temperature, secondary delivery temperature :-40～285 ℃; Precision: ± 1 ℃;
C, working time: 0～99999 hour.
D, electric current show range: 0～999.9A.
E, pressure: 0～1.60MPa.Precision; 0.01Mpa;
6. motor phase sequence:
When protector detects misphase, actuation time≤0.2s;
7. motor, blower fan protection:
The utility model all has above five kinds of basic protective functions to main motor and blower fan
A, rotation-clogging protection: when operation, when a maximum phase current checkout value multiply by stall multiple, actuation time≤0.2s greater than rated current.
B, short-circuit protection: when operation, when a maximum phase current checkout value multiply by overcurrent multiple, actuation time≤1s greater than rated current.
C, open-phase protection: when any phase power supply phase shortage, the actuation time≤the motor open-phase protection time.
D, unbalance protection: in when operation, when the difference of a maximum phase current checkout value and a minimum phase current checkout value multiply by unbalance current ratio greater than rated current,, actuation time≤4s.
E, overload protection: as shown in the table when overload multiple and overload curves number form certain relation when running state enters triangle when operation, keep corresponding second number after, move.(as overload magnification between 1.0 to 1.2, overload curves number is 1, then keep 60 seconds after, report to the police.Other as above.)
| Curve number/overload magnification | ?1.0-1.2 | 1.2-1.3 | 1.3-1.5 | 1.5-1.6 | 1.6-2.0 | 2.0-3.0 |
| 1 | 60 seconds | 48 |
24 seconds | 8 |
5 |
1 |
| 2 | 120 seconds | 96 seconds | 48 |
20 |
10 |
3 |
| 3 | 240 seconds | 160 seconds | 80 seconds | 40 |
20 seconds | 9 seconds |
8. temperature protection:
When detected true temperature during greater than setting temperature, actuation time≤0.2s.
9. output relay contact capacity:
250V5A; Contact endurance 500000 times.
10, RS-485 communication
Control principle of the present utility model
A, unit control
1), near-earth control
1., starting: (star delta starting)
Begin starting by " ON " key main frame after powering on.The main engine starting process is: KM1 gets electric, and KM0 gets electric, and motor star operation star-triangle conversion time, KM2 got electric, the operation of motor triangle, proceed-to-send to → KM1 dead electricity.In the starting process, charge valve is dead electricity always, realizes the empty wagons starting.
2., operation control:
Electric motor starting is behind the triangle state, and after the start-up loading time-delay, charge valve gets electric, and air compressor begins loading, and exhaust pressure begins to raise.When high pressure limiting power that exhaust pressure raise to surpass is set (unloading pressure value), after the unloading time-delay, charge valve dead electricity, the operation of air compressor empty wagons.If in scheduled time (empty wagons is in the time), exhaust pressure is reduced to the lower bound pressure (on-load pressure value) of setting again, and after loading time-delay, charge valve is electricity again, and the normal pressurized air of compressor improves exhaust pressure.If in the time, exhaust pressure does not drop to lower bound pressure at empty wagons, controller will stop machine operation automatically, and the realization empty wagons is crossed autostop of a specified duration.Have only when pressure to drop to lower bound pressure, and the time of shutting down more than or equal to shutting down ETAD expected time of arrival and departure setting value again, motor is automatically by the starting process starting operation, circulation and so forth.
3., orderly closedown:
By " OFF " key, charge valve dead electricity, after time-delay a period of time (shutting down time-delay), motor contactor dead electricity, main frame and fan electromotor shut down.Have only key by " ON ", and the time of shutting down more than or equal to shutting down ETAD expected time of arrival and departure setting value again, just can reset.
4., anti-Fraquent start control
Shut down by " OFF ", empty wagons crosses shutdown of a specified duration actuating motor at once when making the motor stall; certain time-delay need be arranged; this controller time showing window count-down under outage state shows residue delay time (as 90 seconds), could actuating motor when having only delay time to be zero.
2), telecontrol
Telecontrol is the same substantially with near-earth control, and different is that equipment start-stop can be finished by remote switch control.
B, PLC control
1), starting: (star delta starting)
Accept remote activation order starting by the remote PLC terminal after powering on.The main engine starting process is: KM1 gets electric, and KM0 gets electric, and motor star operation star-triangle conversion time, KM2 got electric, the operation of motor triangle, proceed-to-send to → KM1 dead electricity.In the starting process, charge valve is dead electricity always, realizes the empty wagons starting.
2), operation control:
When operation, when accepting long-range loading command from the remote PLC terminal, charge valve gets electric, enters the pressure loaded state; When accept long-range unloading order from the remote PLC terminal, the charge valve dead electricity enters the forced unloading state; Simultaneously, under the PLC control mode, the motion control under the still compatible unit near-earth control mode, but the control command of remote PLC terminal is more preferential.
3), orderly closedown:
Accept long-range ceasing and desisting order by the remote PLC terminal, the charge valve dead electricity, after time-delay a period of time (shutting down time-delay), motor contactor dead electricity, main frame and fan electromotor shut down.Have only by the remote PLC terminal and accept the remote activation order, and the time of shutting down more than or equal to shutting down ETAD expected time of arrival and departure setting value again, just can reset.
4), anti-Fraquent start control
By the remote PLC terminal accept long-range shutdowns of ceasing and desisting order, empty wagons cross shutdown of a specified duration can not the horse back actuating motor when making the motor stall; certain time-delay need be arranged; the capable count-down of this controller time showing Window state under outage state shows residue delay time (as 0010 second), could actuating motor when having only delay time to be zero.
Claims (4)
1. an oil free screw compressor controller comprises: a display device; It is characterized in that: also comprise a master controller, a 4AD submodule and a 8ER submodule; Described master controller and display device join by connection; The standard module of master controller is connected with the expansion mouth of 4AD submodule, 8ER submodule respectively.
2. oil free screw compressor controller according to claim 1 is characterized in that: described 4AD submodule comprises: the 8th analog amount input interface, the 5th analog amount input interface, the 7th analog amount input interface, the 6th analog amount input interface; Described 8ER submodule comprises: the 11 digital-quantity output interface, the 12 digital-quantity output interface, the 13 digital-quantity output interface, the 14 digital-quantity output interface, the 11 digital-quantity input interface, the 12 digital-quantity input interface, the 13 digital-quantity input interface, the 14 digital-quantity input interface; Described master controller comprises: the input interface of first digital quantity to the, ten digital quantities; The output interface of first digital quantity to the, ten digital quantities; First analog amount to the, four analog amount input interfaces.
3. oil free screw compressor controller according to claim 2 is characterized in that: described master controller can also comprise: detect first electric current and first current interface and phase sequence and detect interface.
4. according to claim 1 or 2 or 3 described oil free screw compressor controllers, it is characterized in that: described master controller can also comprise that one can be connected, be used to realize Central Control Room monitoring or the communication port that can link to each other with control with the intemet remote diagnosis with user DCS system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200684478U CN201013597Y (en) | 2007-03-30 | 2007-03-30 | Oil free helical lobe compressor controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200684478U CN201013597Y (en) | 2007-03-30 | 2007-03-30 | Oil free helical lobe compressor controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201013597Y true CN201013597Y (en) | 2008-01-30 |
Family
ID=39025384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200684478U Expired - Lifetime CN201013597Y (en) | 2007-03-30 | 2007-03-30 | Oil free helical lobe compressor controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201013597Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418690A (en) * | 2011-12-07 | 2012-04-18 | 中国船舶重工集团公司第七�三研究所 | Safety protector for fuel drive compressor unit |
| CN105370547A (en) * | 2014-08-28 | 2016-03-02 | 葛洲坝集团水泥有限公司 | Air compressor set with energy-saving device |
| CN105676683A (en) * | 2015-12-31 | 2016-06-15 | 广船国际有限公司 | Controller and bending machine using same |
| CN109026688A (en) * | 2018-09-30 | 2018-12-18 | 厦门华夏国际电力发展有限公司 | A kind of large scale industry air compressor pressure adjusting optimizing redundancy system and method |
| CN110541812A (en) * | 2019-09-27 | 2019-12-06 | 厦门华夏国际电力发展有限公司 | Energy-saving air compressor control system and method based on DCS comprehensive control |
-
2007
- 2007-03-30 CN CNU2007200684478U patent/CN201013597Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418690A (en) * | 2011-12-07 | 2012-04-18 | 中国船舶重工集团公司第七�三研究所 | Safety protector for fuel drive compressor unit |
| CN105370547A (en) * | 2014-08-28 | 2016-03-02 | 葛洲坝集团水泥有限公司 | Air compressor set with energy-saving device |
| CN105676683A (en) * | 2015-12-31 | 2016-06-15 | 广船国际有限公司 | Controller and bending machine using same |
| CN109026688A (en) * | 2018-09-30 | 2018-12-18 | 厦门华夏国际电力发展有限公司 | A kind of large scale industry air compressor pressure adjusting optimizing redundancy system and method |
| CN109026688B (en) * | 2018-09-30 | 2024-04-26 | 厦门华夏国际电力发展有限公司 | Pressure regulation optimization redundancy system and method for large industrial air compressor |
| CN110541812A (en) * | 2019-09-27 | 2019-12-06 | 厦门华夏国际电力发展有限公司 | Energy-saving air compressor control system and method based on DCS comprehensive control |
| CN110541812B (en) * | 2019-09-27 | 2020-10-16 | 厦门华夏国际电力发展有限公司 | Energy-saving air compressor control system and method based on DCS comprehensive control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080130 |
|
| CX01 | Expiry of patent term |