CN203253348U - Automatic-adjustment ammonia feeding apparatus for ammonia method flue gas desulphurization - Google Patents
Automatic-adjustment ammonia feeding apparatus for ammonia method flue gas desulphurization Download PDFInfo
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- CN203253348U CN203253348U CN 201320296648 CN201320296648U CN203253348U CN 203253348 U CN203253348 U CN 203253348U CN 201320296648 CN201320296648 CN 201320296648 CN 201320296648 U CN201320296648 U CN 201320296648U CN 203253348 U CN203253348 U CN 203253348U
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Abstract
An automatic-adjustment ammonia feeding apparatus for ammonia method flue gas desulphurization is an environmentally-friendly technological apparatus for flue gas desulphurization. The apparatus comprises a desulfurization tower, an ammonia spray tube in the tower, an ammonia pump, an ammonia storage tank and an ammonia feeding control device. The ammonia feeding control device comprises an automatic detector, a central controller, an ammonia feeding regulator and an ammonia feeding valve. In the first enforcement scheme in the utility model, the central controller, the automatic detector and the ammonia feeding regulator are an electric transmitter, an electric regulator and an electric performer of a DDZ-III electric unit combination instrument respectively. In the second enforcement scheme in the utility model, the central controller, the automatic detector and the ammonia feeding regulator are a microcomputer, a DDZ-III electric transmitter and a DDZ-III electric performer respectively, an analog-to-digital conversion circuit 17 is electrically connected between the electric transmitter and the microcomputer, and an analog-to-digital conversion circuit 18 is electrically connected between the microcomputer and the electric performer. The apparatus has the advantages of realization of the change from manual-control ammonia feeding to automatic-adjustment and closed-loop-servo-control ammonia feeding, real time detection of the sulfur dioxide emission concentration, real time feedback control of the ammonia feeding amount, and good desulphurization effect.
Description
Technical field:
The utility model relates to the flue gas desulfurization and dedusting green technology, and particularly ammonia type flue gas desulfurizing is regulated ammonifying device automatically.
Background technology:
Chinese patent ZL200720125956.X discloses a kind of deposed ammonia that utilizes and has done wet two step method desulfurization dust separation new equipment, it utilizes deposed ammonia to absorb harmful gaseous sulfur dioxide, the technical maturity desulfurization degree is high, output ammonium sulfate, recycling, turn waste into wealth, non-secondary pollution, and accepted extensively by market.And in actual application, it is further perfect to find to still have the part system to treat, makes its operational effect reach better.The problem that running mainly exists is, because coal-fired sulfur content height is unstable, boiler load changes non-constant, cause the continuous dynamic change of sulfur dioxide in flue gas concentration, control manually the variation that ammonification does not catch up with above-mentioned sulfur dioxide concentration and have now, ammonification control hysteresis, so it is insufficient to cause the not enough desulfurization of ammonification to absorb, discharging exceeds standard, and spray ammonia is excessive to cause that ammoniacal liquor is excessive to bring secondary pollution.
Summary of the invention:
The purpose of the utility model is to provide a kind of ammonia type flue gas desulfurizing automatically to regulate ammonifying device, makes that ammonification is regulated automatically, closed loop servo control, and desulfurized effect is better.
The technical solution of the utility model is that a kind of ammonia type flue gas desulfurizing is regulated ammonifying device automatically, comprises that spray ammonia pipe 4 in desulfurizing tower 1, the desulfurizing tower, spray ammonia pipe connect ammonia pump 12, storage ammonia tank 11 and ammonification control device by pipeline.Described ammonification control device is made of the valve 16 that the sulfur dioxide concentration automatic tester 13 that is arranged at the desulfurizing tower exhaust opening, automatic tester electrical connection central controller 14, central controller electrical connection ammonification adjuster 15, ammonification adjuster are arranged on the pipeline.
Its preferably, described central controller 14 is the DDZ-III electric controller, described sulfur dioxide emissioning concentration automatic tester 13 is the electronic transmitter of DDZ-III, described ammonification adjuster 15 is the DDZ-III YE.
Its further preferably, described central controller 14 is microcomputer, described sulfur dioxide emissioning concentration automatic tester 13 is the electronic transmitter of DDZ-III, described ammonification adjuster 15 is the DDZ-III YE; And, also be electrically connected with mould/number conversion circuit 17 between the electronic transmitter of sulfur dioxide emissioning concentration and the microcomputer, also be electrically connected with D/A switch circuit 18 between microcomputer and the ammonification regulating electric actuator.
The beneficial effect that the utility model produces:
This device overcome in the past because of coal-fired sulfur content height shakiness, boiler load dynamic change, manually control the ammonification deficiency that the factor such as ammonification hysteresis causes causes the desulfurization absorption insufficient, discharging exceeds standard, and ammonification is excessive to cause the excessive waste of ammoniacal liquor to bring the defectives such as secondary pollution.Change manual control ammonification for automatically adjusting, closed loop servo control ammonification, detect in real time sulfur dioxide emissioning concentration, the real-time feedback control ammonia residual, desulfurized effect is good.
Description of drawings:
Accompanying drawing 1 the utility model adopts DDZ-III DDZ closed-loop control system organigram
Accompanying drawing 2 the utility model adopt microcomputer closed-loop control system organigram
The specific embodiment:
The first embodiment, a kind of ammonia type flue gas desulfurizing is regulated ammonifying device automatically, comprises by base, bottom Dust Storage Room, advances mouth 2, its upper wind plate 3, has the spray ammonia pipe 4 of nozzle 5 on it, desulfurization chamber 6 on it, adsorption chamber 7 on it, oxidizing chamber 8 is connected with the top chimney that spray ammonia pipe connects valve 16, ammonia pump 12 and storage ammonia tank 11 and ammonification control device by pipeline in the desulfurizing tower 1 that consists of, the desulfurizing tower on it.The ammonification control device comprises that the sulfur dioxide emissioning concentration automatic tester 13, the automatic tester that are arranged at desulfurizing tower exhaust opening place are electrically connected central controller 14, central controller is electrically connected ammonification adjuster 15, the connection of ammonification adjuster for the valve 16 on the ammonia pipeline.
The described ammonification control device of present embodiment is controlled Ammonia adding System automatically for the closed loop that adopts the DDZ-III DDZ to consist of, wherein, central controller 14 is the DDZ-III electric controller, sulfur dioxide emissioning concentration automatic tester 13 is the electronic transmitter of DDZ-III electrical conductivity, and ammonification adjuster 15 is the DDZ-III YE.
Described DDZ-III electric controller, formed by control module and indicating member two major parts, the course of work, that measuring-signal and interior setting signal are compared by input circuit, by proportion differential circuit and proportional integral circuit its deviation is carried out PD and PI computing, be converted to the standard DC current through output circuit again, remove to control actuator as its output signal.Its outer given input signal of electric controller is 4-20mA DC current or 1-5V DC voltage, can be connected with the electronic transmitter coupling of DDZ-III electrical conductivity.
The electronic transmitter of described DDZ-III is the electronic transmitter of electrical conductivity, is to utilize within the specific limits, and the principle that the concentration of acid-base solution and its electrical conductivity are in proportion is come the concentration of indirect determination acid-base solution by measuring electrical conductivity.The electronic transmitter of DDZ-III electrical conductivity can be connected with the DDZ-III electric controller.
Described DDZ-III ammonification YE is adjustment type angle distance electric executor, and its output connects valve 16, and it accepts the DC voltage standard signal of electric controller output, output corner moment, and the size that by-pass valve control is opened, control adds the size of ammonia flow.
The utility model the second embodiment, a kind of ammonia type flue gas desulfurizing is regulated ammonifying device automatically, comprises by base, bottom Dust Storage Room, advances mouth 2, its upper wind plate 3, has the spray ammonia pipe 4 of nozzle 5 on it, desulfurization chamber 6 on it, adsorption chamber 7 on it, oxidizing chamber 8 is connected with the top chimney that spray ammonia pipe connects valve 16, ammonia pump 12 and storage ammonia tank 11 and ammonification control device by pipeline in the desulfurizing tower 1 that consists of, the desulfurizing tower on it.The ammonification control device comprises that the sulfur dioxide emissioning concentration automatic tester 13, the automatic tester that are arranged at desulfurizing tower exhaust opening place are electrically connected central controller 14, central controller is electrically connected ammonification adjuster 15, the connection of ammonification adjuster for the valve 16 on the ammonia pipeline.
It is to adopt microcomputer to make central controller formation closed loop automatically to control Ammonia adding System that this second embodiment adopts the ammonification control device, except central controller is microcomputer, and still adopt the electronic transmitter of DDZ-III electrical conductivity and the DDZ-III ammonification YE of the first embodiment.Because the input and output of microcomputer are data signal, so must between the electronic transmitter of sulfur dioxide emissioning concentration DDZ-III and microcomputer, be electrically connected successively mould/number conversion circuit 17, convert the voltage analog signal of transmitter output to data signal, to be complementary with the microcomputer digital input interface.Equally, be electrically connected with D/A switch circuit 18 between microcomputer and the ammonification YE, the data signal of computer exported converted to analog signal output, to adapt to the input interface standard of YE.
Running of the present utility model is, the sulfur dioxide emissioning concentration data that will be detected in real time by the electronic transmitter of electrical conductivity are sent to central controller, give comparison with the central controller setting value, if surpass higher limit, by central controller output control signal control YE, the intensifying valve aperture strengthens ammonia residual.When being down to lower limit, reduce valve opening by central controller output control YE, reduce ammonia residual.So the closed loop feedback SERVO CONTROL remains best ammonia residual, and desulfurization is qualified discharge all the time.
Claims (3)
1. an ammonia type flue gas desulfurizing is regulated ammonifying device automatically, comprise that spray ammonia pipe (4) in desulfurizing tower (1), the desulfurizing tower, spray ammonia pipe connect ammonia pump (12) and storage ammonia tank (11) and ammonification control device by pipeline, it is characterized in that the sulfur dioxide concentration automatic tester (13) that described ammonification control device is arranged by the desulfurizing tower exhaust opening, automatic tester electrical connection central controller (14), central controller are electrically connected ammonification adjuster (15), the ammonification adjuster is arranged in for the valve (16) on the ammonia pipeline and consists of.
2. described a kind of ammonia type flue gas desulfurizing is regulated ammonifying device automatically according to claim 1, it is characterized in that, described central controller (14) is the DDZ-III electric controller, described sulfur dioxide emissioning concentration automatic tester (13) is the electronic transmitter of DDZ-III, and described ammonification adjuster (15) is the DDZ-III YE.
3. described a kind of ammonia type flue gas desulfurizing is regulated ammonifying device automatically according to claim 1, it is characterized in that, described central controller (14) is microcomputer, described sulfur dioxide emissioning concentration automatic tester (13) is the electronic transmitter of DDZ-III, and described ammonification adjuster (15) is the DDZ-III YE; Be electrically connected with mould/number conversion circuit (17) between the electronic transmitter of described sulfur dioxide emissioning concentration and the microcomputer, be electrically connected with D/A switch circuit (18) between described microcomputer and the YE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320296648 CN203253348U (en) | 2013-05-17 | 2013-05-17 | Automatic-adjustment ammonia feeding apparatus for ammonia method flue gas desulphurization |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320296648 CN203253348U (en) | 2013-05-17 | 2013-05-17 | Automatic-adjustment ammonia feeding apparatus for ammonia method flue gas desulphurization |
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| CN203253348U true CN203253348U (en) | 2013-10-30 |
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| CN 201320296648 Expired - Fee Related CN203253348U (en) | 2013-05-17 | 2013-05-17 | Automatic-adjustment ammonia feeding apparatus for ammonia method flue gas desulphurization |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104998532A (en) * | 2015-07-23 | 2015-10-28 | 智胜化工股份有限公司 | Boiler ammonia desulphurization flue gas emission and ammonia escape balance control device and method |
| CN105498487A (en) * | 2014-09-27 | 2016-04-20 | 华能泰安众泰发电有限公司 | Out-of-furnace ammonia desulphurization ammonia dosing system |
| CN106237818A (en) * | 2016-09-13 | 2016-12-21 | 成都创慧科达科技有限公司 | A kind of power plant stack gas denitrification apparatus and power plant stack gas processing method |
| US10099170B1 (en) | 2017-06-14 | 2018-10-16 | Jiangnan Environmental Protection Group Inc. | Ammonia-adding system for ammonia-based desulfurization device |
| CN110102166A (en) * | 2019-04-25 | 2019-08-09 | 新兴铸管股份有限公司 | A kind of active coke desulphurizing denitration ammonium hydroxide sprinkling system |
| CN112755730A (en) * | 2020-12-30 | 2021-05-07 | 昆岳互联环境技术(江苏)有限公司 | Automatic ammonia adding accurate control system and method for ammonia desulphurization device |
-
2013
- 2013-05-17 CN CN 201320296648 patent/CN203253348U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105498487A (en) * | 2014-09-27 | 2016-04-20 | 华能泰安众泰发电有限公司 | Out-of-furnace ammonia desulphurization ammonia dosing system |
| CN104998532A (en) * | 2015-07-23 | 2015-10-28 | 智胜化工股份有限公司 | Boiler ammonia desulphurization flue gas emission and ammonia escape balance control device and method |
| CN106237818A (en) * | 2016-09-13 | 2016-12-21 | 成都创慧科达科技有限公司 | A kind of power plant stack gas denitrification apparatus and power plant stack gas processing method |
| US10099170B1 (en) | 2017-06-14 | 2018-10-16 | Jiangnan Environmental Protection Group Inc. | Ammonia-adding system for ammonia-based desulfurization device |
| EP3415222A1 (en) * | 2017-06-14 | 2018-12-19 | Jiangnan Environmental Protection Group Inc. | Automatic ammonia-adding system and method for ammonia-based desulfurization device |
| US10159929B1 (en) | 2017-06-14 | 2018-12-25 | Jiangnan Environmental Protection Group Inc. | Ammonia-adding system for ammonia-based desulfurization device |
| US10583386B2 (en) | 2017-06-14 | 2020-03-10 | Jiangnan Environmental Protection Group Inc. | Ammonia-adding system for ammonia-based desulfurization device |
| US10589212B2 (en) | 2017-06-14 | 2020-03-17 | Jiangnan Environmental Protection Group Inc. | Ammonia-adding system for ammonia-based desulfurization device |
| EP3842125A1 (en) * | 2017-06-14 | 2021-06-30 | Jiangnan Environmental Protection Group Inc. | Automatic ammonia-adding system and method for ammonia-based desulfurization device |
| CN110102166A (en) * | 2019-04-25 | 2019-08-09 | 新兴铸管股份有限公司 | A kind of active coke desulphurizing denitration ammonium hydroxide sprinkling system |
| CN112755730A (en) * | 2020-12-30 | 2021-05-07 | 昆岳互联环境技术(江苏)有限公司 | Automatic ammonia adding accurate control system and method for ammonia desulphurization device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20140517 |