CN201526951U - Automatic ammoniating device of power station boiler - Google Patents
Automatic ammoniating device of power station boiler Download PDFInfo
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- CN201526951U CN201526951U CN2009203111693U CN200920311169U CN201526951U CN 201526951 U CN201526951 U CN 201526951U CN 2009203111693 U CN2009203111693 U CN 2009203111693U CN 200920311169 U CN200920311169 U CN 200920311169U CN 201526951 U CN201526951 U CN 201526951U
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Abstract
The utility model discloses an automatic ammoniating device of a power station boiler, comprising a dosing tank (1), an ammoniating pump (9) and a motor (2) thereof, wherein an outlet of the ammoniating pump (9) is connected with an outlet of condensed water treatment (5) and a downcomer of a deaerator (7) of a boiler system; the outlet of condensed water treatment (5) of a boiler thermal system is internally provided with a first pH value and a DD value automatic detection sensor (6); the downcomer of the deaerator (7) of the boiler system is internally provided with a second pH value and a DD value automatic detection sensor (8); the first pH value and the DD value automatic detection sensor (6) and the second pH value and DD value automatic detection sensor (8) are electrically connected with a control cabinet (4) which is electrically connected with a variable-frequency speed controller (3); and the variable-frequency speed reducer (3) is electrically connected with the motor (2). The utility model provides the automatic ammoniating device which has stable running, high dosing accuracy and low labor intensity and can furthest eliminate the influence of signal lag factor to lead the running to be stable.
Description
Technical field
The utility model relates to a kind of Automatic Ammonia adding device, particularly relates to a kind of station boiler Automatic Ammonia adding device.
Background technology
Guaranteeing that boiler feedwater and stove water water quality are qualified, is the prerequisite of thermal power generation unit economy, safe operation.For guaranteeing safety, the economical operation of thermal power plant, must regulate and control boiler feedwater and stove water water quality.Ammonification is the main means of regulating feedwater pH value.Past adopts manually, and mainly being the operations staff adds ammonia pump according to the situation of change start and stop of feedwater pH value.The adjusting quality of pH value depends on operations staff's operant level and its sense of responsibility to work, and variable factor is more.Present boiler ammonification, be to adopt the outlet of feed pot to be connected with boiler by adding ammonia pump, by manually according to boiler pH value, the speed of running speed that control manually adds ammonia pump is controlled and is added dose, not only artificial dosing labour intensity is big, and the precision that adds dose is also low, exists Artificial Control to lag behind, and influences the water quality and the jiggly problem of operation of boiler water.
The utility model content
Technical problem to be solved in the utility model provides and a kind ofly operates steadily, dosing precision height, station boiler that labour intensity is low add ammonia device automatically.
In order to solve the problems of the technologies described above, a kind of station boiler Automatic Ammonia adding device that the utility model provides, comprise grug feeding jar, add ammonia pump and motor thereof, described ammonification delivery side of pump is connected with the outlet of the condensate water precision processing of steam generator system and the down-comer of oxygen-eliminating device, in the outlet of the condensate water precision processing of boiler heating power system, be provided with a pH value, the automatic detecting sensor of DD value, in the down-comer of the oxygen-eliminating device of steam generator system, be provided with the 2nd pH value, the automatic detecting sensor of DD value, a described pH value, automatic detecting sensor of DD value and the 2nd pH value, the automatic detecting sensor of DD value is electrically connected with switch board, described switch board is electrically connected with variable-frequency governor, and described variable-frequency governor is electrically connected with described motor.
Adopt the station boiler Automatic Ammonia adding device of technique scheme, the one pH value, detected pH value and DD value are transferred to switch board in the outlet of the automatic detecting sensor of DD value with the condensate water precision processing, the 2nd pH value, detected pH value and DD value are transferred to switch board in the down-comer of the automatic detecting sensor of DD value with the oxygen-eliminating device of steam generator system, switch board compares calculating with detected pH value and DD value with the control setting value, after the process intelligent PID is adjusted, again control signal is transferred to variable-frequency governor, controls the dose that adds that adds ammonia pump by variable-frequency governor control rotating speed of motor.Do not need manually-operated, supervision and control after adopting the utility model, reduced the expenditure of working strength of workers and labour cost, improved the control accuracy that adds dose simultaneously yet.
In sum, the utility model be a kind ofly operate steadily, dosing precision height, station boiler Automatic Ammonia adding device that labour intensity is low, the influence of erasure signal lag factor to greatest extent makes and operates steadily.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is an Automatic Ammonia adding control block diagram of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1 and Fig. 2, grug feeding jar 1 outlet connects the inlet that adds ammonia pump 9 by control valve 10, the outlet that adds ammonia pump 9 is connected with the outlet of the condensate water precision processing 5 of boiler heating power system and the down-comer of oxygen-eliminating device 7, adding ammonia pump 9 is driven by motor 2, in the outlet of the condensate water precision processing 5 of steam generator system, be provided with a pH value, the automatic detecting sensor 6 of DD value, in the down-comer of the oxygen-eliminating device 7 of steam generator system, be provided with the 2nd pH value, the automatic detecting sensor 8 of DD value, the one pH value, automatic detecting sensor 6 of DD value and the 2nd pH value, the automatic detecting sensor 8 of DD value is electrically connected with switch board 4, switch board 4 is electrically connected with variable-frequency governor 3, and variable-frequency governor 3 is electrically connected with motor 2.
Referring to Fig. 1 and Fig. 2, in the grug feeding jar 1 ammonia is arranged, the one pH value, detected pH value and DD value are transferred to switch board 4 in the outlet of the automatic detecting sensor 6 of DD value with condensate water precision processing 5, the 2nd pH value, detected pH value and DD value are transferred to switch board 4 in the down-comer of the automatic detecting sensor 8 of DD value with the oxygen-eliminating device 7 of steam generator system, switch board 4 compares calculating with detected pH value and DD value with the control setting value, after the process intelligent PID is adjusted, again control signal is transferred to variable-frequency governor 3, controls the dose that adds that adds ammonia pump 9 by the rotating speed of variable-frequency governor 3 control motors 2.Do not need manually-operated, supervision and control after adopting the utility model, reduced the expenditure of working strength of workers and labour cost, improved the control accuracy that adds dose simultaneously yet.
Major function of the present utility model: pH value and DD value (electrical conductivity) detect automatically, add dose and automatically, manually reach the auto-manual switching.The key technical indexes: feedwater pH:9.0-9.4, the condensate water polisher goes out pH:9.0-9.4 after the saliva ammonification.Service condition: supply voltage 380V? 0% (three-phase); Supply frequency 50? .5HZ; Temperature: 0-40 ℃; Relative humidity＜90%; Non-corrosiveness chemical gas and liquid.
Technology path of the present utility model:
Adopt two parameters of feedwater pH, DD that Ammonia adding System is regulated and control, the method that adopts alternating frequency conversion technique to combine with Computer Control Technology, the influence of erasure signal lag factor operates steadily, reliably medicine system.Concrete implementation step is as follows:
1, according to the concentration of ammonia in the feedwater, the Mathematical Modeling of the variation of pH and DD provides the automatic control model of ammonification.
2, according to ammonification concentration, the variation dependency relation of ammonification time and pH value, DD is adjusted the control parameter, makes the operation of ammonification automatic steady, does not fluctuate widely because of signal lag.
3, by adding ammonia pump 9, establish an automatic switch board 4 of control ammonification, variable-frequency governor 3 is housed, automatic control unit and relevant power, signal circuit and control device in the switch board 4.
4, check, proofread and correct or install additional PH, the DD table of feedwater and condensate polisher water.
5, a pH value, the automatic detecting sensor 6 of DD value and the 2nd pH value, automatic detecting sensor 8 output signals of DD value (4-20mA) are received between the stove dosing, linked to each other with switch board 4 electricity.
6, the power supply that will add the motor 2 of ammonia pump 9 is electrically connected with variable-frequency governor 3.
7, the debugging of Automatic Ammonia adding System and trial run are done further to adjust to the control parameter, make system stable operation.
8, detected pH value and DD value are transferred to switch board 4 in a pH value, the outlet of the automatic detecting sensor 6 of DD value with condensate water precision processing 5, detected pH value and DD value are transferred to switch board 4 in the 2nd pH value, the down-comer of the automatic detecting sensor 8 of DD value with the oxygen-eliminating device 7 of steam generator system, switch board 4 compares calculating with detected pH value and DD value with the control setting value, after the process intelligent PID is adjusted, again control signal is transferred to variable-frequency governor 3, controls the dose that adds that adds ammonia pump 9 by the rotating speed of variable-frequency governor 3 control motors 2.
Claims (1)
1. station boiler Automatic Ammonia adding device, comprise grug feeding jar (1), add ammonia pump (9) and motor (2) thereof, the described outlet that adds ammonia pump (9) is connected with the outlet of the condensate water precision processing (5) of boiler heating power system and the down-comer of oxygen-eliminating device (7), it is characterized in that: in the outlet of the condensate water precision processing (5) of boiler heating power system, be provided with a pH value, the automatic detecting sensor of DD value (6), in the down-comer of the oxygen-eliminating device (7) of steam generator system, be provided with the 2nd pH value, the automatic detecting sensor of DD value (8), a described pH value, automatic detecting sensor of DD value (6) and the 2nd pH value, the automatic detecting sensor of DD value (8) is electrically connected with switch board (4), described switch board (4) is electrically connected with variable-frequency governor (3), and described variable-frequency governor (3) is electrically connected with described motor (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203111693U CN201526951U (en) | 2009-09-23 | 2009-09-23 | Automatic ammoniating device of power station boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203111693U CN201526951U (en) | 2009-09-23 | 2009-09-23 | Automatic ammoniating device of power station boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201526951U true CN201526951U (en) | 2010-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203111693U Expired - Fee Related CN201526951U (en) | 2009-09-23 | 2009-09-23 | Automatic ammoniating device of power station boiler |
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| CN (1) | CN201526951U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102936564A (en) * | 2012-11-26 | 2013-02-20 | 无锡赛德生物工程有限公司 | Ammonia supplementing device for enzyme preparation fermentation |
| CN105759712A (en) * | 2016-04-05 | 2016-07-13 | 西安西热电站化学科技有限公司 | Precise control device and method for condensation water automatic ammonia injection |
| CN106292455A (en) * | 2016-09-28 | 2017-01-04 | 西安热工研究院有限公司 | A kind of direct current cooker condenses water ammonification and personalizes inspection type intelligence control system and control method |
| CN107381763A (en) * | 2017-07-07 | 2017-11-24 | 大唐东北电力试验研究所有限公司 | Thermal System of Fossil Fuel-Fired Power Station segmentation pH adjustment system and methods |
| CN107893752A (en) * | 2016-10-03 | 2018-04-10 | 天津有序环境科技发展有限公司 | Transform the ammonification pump equal control method of existing system |
-
2009
- 2009-09-23 CN CN2009203111693U patent/CN201526951U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102936564A (en) * | 2012-11-26 | 2013-02-20 | 无锡赛德生物工程有限公司 | Ammonia supplementing device for enzyme preparation fermentation |
| CN105759712A (en) * | 2016-04-05 | 2016-07-13 | 西安西热电站化学科技有限公司 | Precise control device and method for condensation water automatic ammonia injection |
| CN105759712B (en) * | 2016-04-05 | 2018-04-24 | 西安西热电站化学科技有限公司 | The precise control device and method of condensation water Automatic Ammonia adding |
| CN106292455A (en) * | 2016-09-28 | 2017-01-04 | 西安热工研究院有限公司 | A kind of direct current cooker condenses water ammonification and personalizes inspection type intelligence control system and control method |
| CN106292455B (en) * | 2016-09-28 | 2019-05-21 | 西安热工研究院有限公司 | A kind of ammonification of direct current cooker condensed water personalizes inspection type intelligence control system and control method |
| CN107893752A (en) * | 2016-10-03 | 2018-04-10 | 天津有序环境科技发展有限公司 | Transform the ammonification pump equal control method of existing system |
| CN107893752B (en) * | 2016-10-03 | 2019-04-05 | 天津有序环境科技发展有限公司 | The ammonification that existing system is transformed pumps equal control method |
| CN107381763A (en) * | 2017-07-07 | 2017-11-24 | 大唐东北电力试验研究所有限公司 | Thermal System of Fossil Fuel-Fired Power Station segmentation pH adjustment system and methods |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20100714 Termination date: 20110923 |