CN204790490U - Central heating desulfurization dust removal automatic control system - Google Patents
Central heating desulfurization dust removal automatic control system Download PDFInfo
- Publication number
- CN204790490U CN204790490U CN201520507605.XU CN201520507605U CN204790490U CN 204790490 U CN204790490 U CN 204790490U CN 201520507605 U CN201520507605 U CN 201520507605U CN 204790490 U CN204790490 U CN 204790490U
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- CN
- China
- Prior art keywords
- central heating
- sensor
- dedusting
- batcher
- heating desulfurization
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Abstract
The utility model relates to a central heating desulfurization dust removal automatic control system, its major technical features is: connect by host computer and central heating desulfurization dust removal controlling means and constitute, central heating desulfurization dust removal controlling means includes PLC controller, communication module, level sensor, pH sensor, SO2 sensor, AD conversion module, DA conversion module, batcher converter, batcher, motor, water pump, the SO2 concentration that is used for detecting in the desulfurizing tower is installed to the SO2 sensor in the desulfurizing tower, the SO2 sensor is connected to on the PLC controller through AD conversion module, PLC controller and DA conversion module, batcher converter, the batcher is consecutive connects. The utility model relates to a rationally, through the SO2 concentration in the real -time detection desulfurizing tower to utilize PLC controller automatically regulated feed volume, realize functions such as the PID of liquid level automatic control, pH value adjusts, row's mortar accurate control, reduce the emission of SO2 flue gas effectively, reached energy saving and emission reduction's effect.
Description
Technical field
The utility model belongs to central heating technical field, especially a kind of central heating desulfurization and dedusting automatic control system.
Background technology
The energy development of China and the policy mandates all trades and professions of exploitation all will carry out corresponding energy-saving and emission-reduction measure, and in the building energy consumption of northern area, the energy-saving and emission-reduction task that heating energy consumption is born occupies suitable ratio.At present, centralized heating boiler plant remains main heat-supplying mode, the SO produced in coal combustion process
2, CO
2and NO
xserious pollution is caused to environment, wherein in air 90% SO
2, 85% CO
2, 70% NO
xall from burning of coal.
Along with constantly advancing of society, the requirement of people to environment is also more and more higher.The consequence that the discharge of industrial gaseous waste produces is also more and more serious, is affecting the survival and development of the mankind.SO
2the pollution caused is particularly serious, makes large area form Acid Rain Zone, forms serious threat to crops and buildings.The formation major part of acid rain is the SO due to boiler emission
2caused, therefore controlled boiler SO
2discharge be the essential measure of control of acid rain.At present, the flue gas desulfurization process of domestic central heating system is still relatively backward, and automatic business processing degree is lower, can not well to the SO in coal-fired process
2effectively process.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of central heating desulfurization and dedusting automatic control system, effectively solves the SO that central heating system brings
2smoke pollution problem.
The utility model solves its technical matters and takes following technical scheme to realize:
A kind of central heating desulfurization and dedusting automatic control system, is connected and composed by central heating desulfurization and dedusting host computer and central heating desulfurization and dedusting control device; Described central heating desulfurization and dedusting control device comprises PLC, communication module, liquid level sensor, pH sensor, SO
2sensor, A/D modular converter, D/A modular converter, batcher frequency converter, batcher, motor, water pump; Described SO
2sensor is arranged in desulfurizer for detecting the SO in desulfurizer
2concentration, SO
2sensor is connected in PLC by A/D modular converter; PLC is connected successively with D/A modular converter, batcher frequency converter, batcher, and PLC is according to the SO in desulfurizer
2concentration controls batcher to desulfurizer feed; PLC is connected with communication module, liquid level sensor, pH sensor, motor, water pump respectively; PLC to be connected with central heating desulfurization and dedusting host computer by communication module and to carry out communication, the status information of central heating desulfurization and dedusting control device is sent to central heating desulfurization and dedusting host computer, and the control command receiving central heating desulfurization and dedusting host computer controls accordingly.
And described PLC also connects a human-computer interaction device.
And described PLC also connects an alarm, this alarm is audible-visual annunciator.
And described communication module is cable network module or wireless communication module.
Advantage of the present utility model and good effect are:
1, native system is controlled coal-burning boiler desulphurization system, by detecting the SO in desulfurizer in real time by central heating desulfurization and dedusting host computer and central heating desulfurization and dedusting control device two-step evolution mode
2concentration, and utilize PLC automatically to regulate feeding coal, thus effectively reduce SO
2the discharge of flue gas, reaches the effect of energy-saving and emission-reduction.
2, native system by liquid level sensor and pH value tactility apparatus the liquid in desulfurizer detected and realize automatic control of liquid, the PID of pH value regulates, the ash discharge slurry precisely function such as control, makes SO
2emission request reach national environmental standard.
Accompanying drawing explanation
Fig. 1 is system connection diagram of the present utility model;
Fig. 2 is the control principle drawing of PLC.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is further described:
A kind of central heating desulfurization and dedusting automatic control system, as shown in Figure 1, connected and composed by central heating desulfurization and dedusting host computer and central heating desulfurization and dedusting control device, described central heating desulfurization and dedusting control device comprises PLC, communication module, human-computer interaction device, liquid level sensor, pH sensor, SO
2sensor, A/D modular converter, D/A modular converter, batcher frequency converter, batcher, motor, water pump, alarm.Described SO
2sensor is arranged in desulfurizer for detecting the SO in desulfurizer
2concentration, SO
2sensor is connected in PLC by A/D modular converter.PLC is connected successively with D/A modular converter, batcher frequency converter, batcher, and PLC is according to the SO in desulfurizer
2concentration controls batcher to desulfurizer feed.PLC is connected with communication module, human-computer interaction device, liquid level sensor, pH sensor, motor, water pump, alarm respectively, realizes corresponding operation and Presentation Function by human-computer interaction device; Liquid level sensor and pH sensor are arranged in desulfurizer and carry out liquid level sensing and liquid pH and detect and send in PLC by testing result; By motor, water pump, the actuating equipment in desulphurization system is controlled; Corresponding warning function can be realized by alarm to process in time for pointing out monitor staff; PLC to be connected with central heating desulfurization and dedusting host computer by communication module and to carry out communication, on the one hand the status information of central heating desulfurization and dedusting control device is sent to central heating desulfurization and dedusting host computer, the control command receiving central heating desulfurization and dedusting host computer on the other hand controls accordingly, realize automatic control of liquid, the PID of pH value regulates, the functions such as precisely control are starched in ash discharge, makes SO simultaneously
2emission request reach national environmental standard, to reach the object of energy-saving and emission-reduction.
PLC is to SO
2control adopt close-loop control mode, its principle of work is: desulphurization system operational factor is input in PLC, utilizes the PID software function control simulation amount in PLC to export, realizes automatic regulation function.The function of this Analog control will carry out frequency control to batcher frequency converter.The number of desulfurizing agent is controlled by batcher frequency converter, due to how many direct efficiency affecting desulfurization of feeding coal, in order to economical operation reaches again environmental protection standard, needs according to SO
2content controls feeding coal.SO
2content setting value can be modified on host computer, the SO after desulfurization
2monitor value and setting value compare, and regulate the frequency of batcher frequency converter and then control feeding coal after PID arithmetic.In order to economical operation reaches environmental protection standard again, need according to SO
2han Liang Kong Give doses.Concrete processing procedure as shown in Figure 2, uses SO
2concentration sensor detects the SO in desulfurizer
2concentration, the current signal that sensor exports is converted to the current signal of standard range by transmitter, then gives Analog input mModule, obtains and SO after A/D conversion
2the digital quantity that concentration is proportional, then with SO
2setting value compares, and calculates error amount according to pid control algorithm, gives analog output module by operation result, after D/A conversion, become current signal, the operational throughput being used for controlling batcher number, controlled the SO in boiler by its
2concentration, realizes closed-loop control.
This PLC adopts SCS control mode to carry out to other actuating equipments in desulphurization system, SCS control object comprises the motor, pneumatic door, solenoid valve etc. of unit, native system will be considered according to optional function group level, subgroup level, individual event control mode, the start and stop energy independent operating of each subgroup level controlling functions, operations staff selects automatic program control or manual manipulation mode by operation interface.In system operation, occur that any fault can send the failure cause of interruption to operations staff.When selecting manual manipulation mode, the license file of SCS Operation system setting, can prevent operations staff's maloperation.Chain, the protection instruction of equipment have limit priority.Manual command is then preferential than automatic command, and " startup ", " stopping " of controlled device or " open ", " pass " the mutual locking of instruction, and make controlled device to secure side to action.The protection of SCS and blocking function are effective all the time, do not allow operations staff manually to excise.
It is emphasized that; embodiment described in the utility model is illustrative; instead of it is determinate; therefore the utility model is not limited to the embodiment described in embodiment; every other embodiments drawn according to the technical solution of the utility model by those skilled in the art, belong to the scope of the utility model protection equally.
Claims (4)
1. a central heating desulfurization and dedusting automatic control system, is characterized in that: connected and composed by central heating desulfurization and dedusting host computer and central heating desulfurization and dedusting control device; Described central heating desulfurization and dedusting control device comprises PLC, communication module, liquid level sensor, pH sensor, SO
2sensor, A/D modular converter, D/A modular converter, batcher frequency converter, batcher, motor, water pump; Described SO
2sensor is arranged in desulfurizer for detecting the SO in desulfurizer
2concentration, SO
2sensor is connected in PLC by A/D modular converter; PLC is connected successively with D/A modular converter, batcher frequency converter, batcher, and PLC is according to the SO in desulfurizer
2concentration controls batcher to desulfurizer feed; PLC is connected with communication module, liquid level sensor, pH sensor, motor, water pump respectively; PLC to be connected with central heating desulfurization and dedusting host computer by communication module and to carry out communication, the status information of central heating desulfurization and dedusting control device is sent to central heating desulfurization and dedusting host computer, and the control command receiving central heating desulfurization and dedusting host computer controls accordingly.
2. central heating desulfurization and dedusting automatic control system according to claim 1, is characterized in that: described PLC also connects a human-computer interaction device.
3. central heating desulfurization and dedusting automatic control system according to claim 1 and 2, is characterized in that: described PLC also connects an alarm, and this alarm is audible-visual annunciator.
4. central heating desulfurization and dedusting automatic control system according to claim 1 and 2, is characterized in that: described communication module is cable network module or wireless communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520507605.XU CN204790490U (en) | 2015-07-14 | 2015-07-14 | Central heating desulfurization dust removal automatic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520507605.XU CN204790490U (en) | 2015-07-14 | 2015-07-14 | Central heating desulfurization dust removal automatic control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204790490U true CN204790490U (en) | 2015-11-18 |
Family
ID=54530502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520507605.XU Expired - Fee Related CN204790490U (en) | 2015-07-14 | 2015-07-14 | Central heating desulfurization dust removal automatic control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204790490U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106873511A (en) * | 2017-01-16 | 2017-06-20 | 北新集团建材股份有限公司 | A kind of desulfurization automatic control system |
| CN106950935A (en) * | 2017-05-05 | 2017-07-14 | 苏州普绿法环保科技有限公司 | A kind of intelligent automatic-control system for the intelligent cleaner system of Internet of Things |
-
2015
- 2015-07-14 CN CN201520507605.XU patent/CN204790490U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106873511A (en) * | 2017-01-16 | 2017-06-20 | 北新集团建材股份有限公司 | A kind of desulfurization automatic control system |
| CN106950935A (en) * | 2017-05-05 | 2017-07-14 | 苏州普绿法环保科技有限公司 | A kind of intelligent automatic-control system for the intelligent cleaner system of Internet of Things |
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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: 20151118 Termination date: 20200714 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |