CN203214366U - Intelligent direct digital control (DDC) system of central air supply station - Google Patents
Intelligent direct digital control (DDC) system of central air supply station Download PDFInfo
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- CN203214366U CN203214366U CN 201320113736 CN201320113736U CN203214366U CN 203214366 U CN203214366 U CN 203214366U CN 201320113736 CN201320113736 CN 201320113736 CN 201320113736 U CN201320113736 U CN 201320113736U CN 203214366 U CN203214366 U CN 203214366U
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Abstract
The utility model relates to an intelligent direct digital control (DDC) system of a central air supply station. The control system comprises a DDC controller, an air compressor unit, a data acquisition unit, a computer monitoring unit and a warning device, wherein the DDC controller is connected with the output end of a starting module, and the starting module transmits starting signals to initiate work; the output end of the data acquisition unit is connected with the signal input end of the DDC controller, the feedback control end of the DDC controller is connected with a frequency converter, and the frequency converter is communicated with the DDC controller. The control system has the advantages of being simple to operate, high in intelligence, free of attendance, capable of avoiding lag caused by human factors through good real-time regulation, high in reliability, low in cost and the like. The control system can be used for perfectly solving an air compressor unit management problem, provides an all-dimensional management mode for the air compressor unit of the central air supply station, is also an expansion and significant innovation of automatic DDC systems and is relatively important to improvement of the whole technological level of modern industry.
Description
Technical field
The utility model relates to a kind of air compressor set control system, especially relates to a kind of central air feed station intelligence DDC control system.
Background technique
Industrial field (comprising electronics, plastic cement, printing and dyeing, cotton spinning enterprise etc.) the air compressor plant construction of high speed development is an important ancillary works now.Wherein the capital equipment of all air compressor plants outfits is centrifugal air compressor, refrigerated air dryer, form the pressurized air air supply system by gas holder, connecting tube and valve etc., and supporting cooling system, instrument air system, computer detection system, with realize air compressor plant be the production line guarantee different pressures, different load use the gas demand.The CMC controller that existing air compressor equipment carries can better controlled separate unit air compressor, but do not possess the whole ability of regulation and control to air compression system, the separate unit air compressor can't guarantee the stable of the whole supply gas pressure of air compression system, but also needs attended operation.But along with improving constantly of automatization level, about building the discussion of unmanned air compressor plant, be the inevitable problem in the evolution.
Summary of the invention
The utility model purpose provides a kind of central air feed station intelligence DDC control system.To solve the existing in prior technology complicated operation, to need low, the more high technical problem of cost of workman's degree on duty, intelligent.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: central air feed station intelligence DDC control system comprises DDC controller, pneumatics unit, data acquisition unit, computer monitoring unit, warning device; Described DDC controller is connected with the output terminal that starts module, and sends actuating signal by the startup module and start working; Described data acquisition unit output terminal is connected with the signal input part of DDC controller, and the feedback control end of this DDC controller is connected with a frequency variator, and frequency variator and DDC controller carry out communication.
As preferably, described DDC controller is connected with computer monitoring unit, warning device respectively.
As preferably, described DDC controller is selected the DDC programmable controller of Honeywell Inc. for use, and this controller is by gathering into DDC control system with the real-time running data of air compressor by the RS422/485 communication interface.
As preferably, described data acquisition unit comprises the high and low pressure supply gas pressure data acquisition unit that is connected with the DDC controller respectively, draining data acquisition unit, circulating water liquid data acquisition unit, compressed air temperature data acquisition unit, circulating water temperature data acquisition unit automatically.
The utlity model has simple to operately, intelligent degree height can be realized unmanned; And have the excellent real-time adjusting, prevented the personal factor hysteresis; The reliability height, low cost and other advantages.The utility model has ideally solved the difficult problem of pneumatics unit management, and it provides the comprehensive management mode of central air feed station pneumatics unit, also is expansion and the major reform of automatic control DDC robot control system(RCS).In system's implementation process; introduce the processor of faut detection and fault diagnosis; can improve the intelligent degree of system; be conducive to further improve validity and the reliability of robot control system(RCS); by optimizing scheduling strategy; software interlock protections etc. are the application of control functional mode automatically, can provide foundation for definite air compressor equipment state overhauling point, and obtain bigger benefit thus.Can overcome because the unfavorable factors such as control lag that personal factor causes reduce the fluctuation of Operational Limits by DDC automation control in a word, reach the purpose that reduces recruitment and energy saving.Overall technology level for the lifting modern industry is considerable.
Description of drawings
Fig. 1 is structured flowchart of the present utility model.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is further described in detail.
Fig. 1 is structured flowchart of the present utility model.As shown in Figure 1, central air feed station intelligence DDC control system mainly is made up of DDC controller, pneumatics unit, data acquisition unit, computer monitoring unit, warning device etc.; Described DDC controller is connected with the output terminal that starts module, and sends actuating signal by the startup module and start working; Described data acquisition unit output terminal is connected with the signal input part of DDC controller, and the feedback control end of this DDC controller is connected with a frequency variator, and frequency variator and DDC controller carry out communication.The DDC controller carries out logical operation according to the data of data acquisition unit collection, according to operation result output control signal the pneumatics unit is carried out Energy Saving Control.The DDC controller is connected with computer monitoring unit, warning device respectively.
The DDC controller is selected the DDC programmable controller of Honeywell Inc. for use, has the RS422/485 network interface, supports network of relation communications protocol such as MODBUS.Can adopt special-purpose industrial communication network technique to implement long-distance on-line.The air compressor plant automatic control equipment can be according to the characteristics of production actual conditions and each equipment, and the problem that may exist, the embodiment of establishing the grading control network after the comprehensive each side factor.This DDC controller is by gathering into DDC control system with the real-time running data of air compressor by the RS422/485 communication interface.And the high and low pressure supply gas pressure data that data acquisition unit is collected, draining data, circulating water liquid data, compressed air temperature, circulating water temperature degrees of data etc. are sent to and show on the computer of field control chamber automatically, to replace conventional instrument.Except the automatic control of pneumatics air supply system, air compressor plant can be realized centralized control, or be networked with control centre of factory with refrigeration plant, thermal substation system apparatus for establishing control network, by the controller real-time remote monitoring of control centre, realizes real unmanned.In system's implementation process; also can introduce the processor of faut detection and fault diagnosis; can improve the intelligent degree of system; be conducive to further improve validity and the reliability of robot control system(RCS); by optimizing scheduling strategy, software interlock protection etc. are the application of control functional mode automatically, is expected to automatization level is risen to higher level; can provide foundation for determining air compressor equipment state overhauling point, and obtain bigger benefit thus.
The integral self-control of air compression system can effectively keep system's inner air pressure stable, and Auto Power On or loading air compressor are to keep system pressure according to actual needs.Can regularly record compressor operation data and warning discontinuously, as jumping car, surge, communication failure, pressure etc.Because the CMC controller that air compressor carries provides RS422/485 communication interface, all data captures and control function all realize by communication interface, contrast original control system, do not need to increase the investment of hardware device.Except air compressor equipment, can also realize comprehensive automatic control of pneumatics air feed equipment with being integrated into the RS422/485 network with the supporting refrigerant type dryer of air compressor.The automatic control of air compressor plant other system is except the pneumatics air supply system, and the other system of air compressor plant also needs to control automatically, as hydrologic cycle cooling system etc.
Claims (4)
1. the intelligent DDC control system in central air feed station comprises DDC controller, pneumatics unit, data acquisition unit, computer monitoring unit, warning device; It is characterized in that described DDC controller is connected with the output terminal that starts module, and send actuating signal by the startup module and start working; Described data acquisition unit output terminal is connected with the signal input part of DDC controller, and the feedback control end of this DDC controller is connected with a frequency variator, and frequency variator and DDC controller carry out communication.
2. the intelligent DDC control system in central air feed station according to claim 1 is characterized in that described DDC controller is connected with computer monitoring unit, warning device respectively.
3. the intelligent DDC control system in central air feed station according to claim 1 is characterized in that described DDC controller is selected the DDC programmable controller of Honeywell Inc. for use, and this controller is gathered the real-time running data of air compressor by the RS422/485 communication interface.
4. central air feed according to claim 1 station intelligence DDC control system, it is characterized in that described data acquisition unit comprises the high and low pressure supply gas pressure data acquisition unit that is connected with the DDC controller respectively, automatic draining data acquisition unit, circulating water liquid data acquisition unit, compressed air temperature data acquisition unit, circulating water temperature data acquisition unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320113736 CN203214366U (en) | 2013-03-13 | 2013-03-13 | Intelligent direct digital control (DDC) system of central air supply station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320113736 CN203214366U (en) | 2013-03-13 | 2013-03-13 | Intelligent direct digital control (DDC) system of central air supply station |
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| Publication Number | Publication Date |
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| CN203214366U true CN203214366U (en) | 2013-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320113736 Expired - Lifetime CN203214366U (en) | 2013-03-13 | 2013-03-13 | Intelligent direct digital control (DDC) system of central air supply station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420294A (en) * | 2017-09-12 | 2017-12-01 | 李军 | A kind of skid type combined type internet energy-saving air compressor station |
| CN109782095A (en) * | 2019-02-15 | 2019-05-21 | 中车青岛四方机车车辆股份有限公司 | A kind of failure diagnosis apparatus and system |
-
2013
- 2013-03-13 CN CN 201320113736 patent/CN203214366U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420294A (en) * | 2017-09-12 | 2017-12-01 | 李军 | A kind of skid type combined type internet energy-saving air compressor station |
| CN107420294B (en) * | 2017-09-12 | 2024-02-06 | 李军 | Skid-mounted combined internet energy-saving air compressor station |
| CN109782095A (en) * | 2019-02-15 | 2019-05-21 | 中车青岛四方机车车辆股份有限公司 | A kind of failure diagnosis apparatus and system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000, F1-F21 building (F16-301) (), commercial street, Po Yuen Road, Baoan labour street, Xixiang street, Guangdong, China Patentee after: SHENZHEN MEIZHAO ENVIRONMENT CO.,LTD. Address before: 518000, F1-F21 building (F16-301) (), commercial street, Po Yuen Road, Baoan labour street, Xixiang street, Guangdong, China Patentee before: SHENZHEN MEIZHAO ENERGY & ENVIRONMENT TECHNOLOGY Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130925 |