CN203573146U - Flue gas desulphuring control system - Google Patents
Flue gas desulphuring control system Download PDFInfo
- Publication number
- CN203573146U CN203573146U CN201320662870.6U CN201320662870U CN203573146U CN 203573146 U CN203573146 U CN 203573146U CN 201320662870 U CN201320662870 U CN 201320662870U CN 203573146 U CN203573146 U CN 203573146U
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- CN
- China
- Prior art keywords
- flue gas
- control system
- desulphuring
- plc controller
- frequency converter
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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 discloses a flue gas desulphuring control system which comprises an industrial host computer and a PLC controller that are connected through a data line. The flue gas desulphuring control system further comprises the components of: a liquid crystal display, a start-stop circuit, an alarm circuit, a frequency converter and a flue gas desulphuring device; wherein the liquid crystal display, the start-stop circuit, the alarm circuit, the frequency converter and the flue gas desulphuring device are respectively connected with the PLC controller; and the frequency converter is connected with a sensor. The flue gas desulphuring control system has the advantages of: small volume, convenient operation, high control function, high response speed, strong expandability and high interference resistance.
Description
Technical field
The utility model relates to flue gas desulfurization field, specifically refers to a kind of flue gas desulfurization control system.
Background technology
Coal is as the important disposable energy of China, account for the more than 70% of AND ENERGY RESOURCES CONSUMPTION IN CHINA amount, but owing to containing a large amount of sulphur in coal, in burning, can generate sulphuric dioxide, and be discharged in air, form large area acid rain, acid rain can make that forest is withered, soil acidification, crop production reduction, many hydrobionts disappear, buildings is corroded, and causes very big harm to human being's production, life.Therefore, control the content that enters sulphuric dioxide in air during coal burning, be solve Acid Rain Pollution the most at all, the most direct approach.China just starts to carry out the research of flue gas desulfurization technique as far back as 20 century 70s, but due to many-sided reasons such as technology, management, economy and environment consciousness, most of technology also rests on the trial run stage, and does not promote on a large scale.While is along with the develop rapidly of China's industry, the discharge capacity of sulphuric dioxide also will constantly increase along with increasing progressively of installed capacity, therefore existing flue gas desulfurization technique and equipment must be updated and is perfect, to meet the requirement of pollutant levels and Target of Total Pollutant Amount Control.
Utility model content
The purpose of this utility model is to provide that one has high-timeliness, automatic intelligent degree is high, antijamming capability is strong, and the simple flue gas desulfurization control system of installation and operation.
The utility model is achieved through the following technical solutions: a kind of flue gas desulfurization control system, comprise the industry control host computer and the PLC controller that by data circuit, connect, and the liquid crystal display, switching on/off circuit, warning circuit, frequency converter and the flue gas desulfur device that are connected with PLC controller respectively, wherein frequency converter is connected with sensor.
Further, described PLC controller is also connected with power circuit.
Further, described power circuit is provided with ups power.
Further, between described frequency converter and sensor, be also provided with photoelectrical coupler.
Further, described liquid crystal display is section type liquid crystal display.
Further, described industry control host computer is also connected with respectively printer and operation keyboard.
The utility model compared with prior art, has the following advantages and beneficial effect:
(1) the utlity model has volume little, easy to operate, control function strong, fast response time, the advantage that stronger extensibility and antijamming capability are strong.
(2) the utility model adopts the core of frequency converter as system monitoring part, can coordinate the parameter of electric machine to set, the dynamic compensation fluctuation of load, realize the quick response of motor torque and accurately control, there is high steady speed precision and fast dynamic response, make whole system there is higher accuracy and usable range widely.
(3) liquid crystal display of the utility model setting has adopted section type liquid crystal display, makes system have good human-computer interaction interface, has improved the practicality of system; At PLC controller, be provided with ups power, assurance the in the situation that of abnormal power-down, the integrality of system data, has further improved the safe reliability of system.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the structural representation of the utility model embodiment 2.
Fig. 3 is the structural representation of the utility model embodiment 3.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment 1:
As shown in Figure 1, the utility model discloses a kind of flue gas desulfurization control system, comprise the industry control host computer and the PLC controller that by data circuit, connect, and the liquid crystal display, switching on/off circuit, warning circuit, frequency converter and the flue gas desulfur device that are connected with PLC controller respectively, wherein frequency converter is connected with sensor; Described PLC controller is also connected with power circuit; Described power circuit is provided with ups power.
Principle of work of the present utility model is as follows, the signal data of collection in worksite is uploaded to PLC controller by sensor after frequency converter is processed, by liquid crystal display, data are shown simultaneously, PLC controller by data upload to industry control host computer, the processing that data is shown, inquired about and reset by industry control host computer.Industry control host computer receives the real-time running data that PLC controller is uploaded, if needed, by industry control host computer, to PLC controller, sends instruction and starts switching on/off circuit, by switching on/off circuit, starts the desulfurization of flue gas desulfur device completion system.While running into urgent abnormal conditions, PLC controller will be by sending system alarm instruction to warning circuit.PLC controller is also connected with power circuit, is responsible for PLC controller working power is provided, and I guarantee the integrality of system data in abnormal power-down situation simultaneously, and power circuit is provided with ups power.
Embodiment 2:
The present embodiment has carried out further optimization on the basis of embodiment 1, as shown in Figure 2, is also provided with photoelectrical coupler between described frequency converter and sensor, thereby has improved the safe reliability of system.Other parts of the present embodiment are identical with embodiment 1, repeat no more.
Embodiment 3:
The difference of the present embodiment and above-described embodiment is, further at described industry control host computer, is connected with respectively printer and operation keyboard.Other parts of the present embodiment are identical with embodiment 2 or above-described embodiment, repeat no more.
The above; it is only preferred embodiment of the present utility model; not the utility model is done to any pro forma restriction, any simple modification, equivalent variations that every foundation technical spirit of the present utility model is done above embodiment, within all falling into protection domain of the present utility model.
Claims (6)
1. a flue gas desulfurization control system, it is characterized in that: comprise the industry control host computer and the PLC controller that by data circuit, connect, and the liquid crystal display, switching on/off circuit, warning circuit, frequency converter and the flue gas desulfur device that are connected with PLC controller respectively, wherein frequency converter is connected with sensor.
2. a kind of flue gas desulfurization control system according to claim 1, is characterized in that: described PLC controller is also connected with power circuit.
3. a kind of flue gas desulfurization control system according to claim 2: described power circuit is provided with ups power.
4. a kind of flue gas desulfurization control system according to claim 1, is characterized in that: between described frequency converter and sensor, be provided with photoelectrical coupler.
5. a kind of flue gas desulfurization control system according to claim 1, is characterized in that: described liquid crystal display is section type liquid crystal display.
6. a kind of flue gas desulfurization control system according to claim 1, is characterized in that: described industry control host computer is also connected with printer and operation keyboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320662870.6U CN203573146U (en) | 2013-10-25 | 2013-10-25 | Flue gas desulphuring control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320662870.6U CN203573146U (en) | 2013-10-25 | 2013-10-25 | Flue gas desulphuring control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203573146U true CN203573146U (en) | 2014-04-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320662870.6U Expired - Fee Related CN203573146U (en) | 2013-10-25 | 2013-10-25 | Flue gas desulphuring control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203573146U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104808574A (en) * | 2015-04-21 | 2015-07-29 | 成都微哲电子科技有限公司 | Signal amplification type PLC flue gas desulfurization control system |
-
2013
- 2013-10-25 CN CN201320662870.6U patent/CN203573146U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104808574A (en) * | 2015-04-21 | 2015-07-29 | 成都微哲电子科技有限公司 | Signal amplification type PLC flue gas desulfurization control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20141025 |
|
| EXPY | Termination of patent right or utility model |