CN203686996U - Automatic boiler operation control device - Google Patents
Automatic boiler operation control device Download PDFInfo
- Publication number
- CN203686996U CN203686996U CN201320834437.6U CN201320834437U CN203686996U CN 203686996 U CN203686996 U CN 203686996U CN 201320834437 U CN201320834437 U CN 201320834437U CN 203686996 U CN203686996 U CN 203686996U
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- China
- Prior art keywords
- boiler
- dcs
- flue
- control device
- feeder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000003245 coal Substances 0.000 claims abstract description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 10
- 239000001301 oxygen Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000005303 weighing Methods 0.000 claims abstract description 9
- 239000002893 slag Substances 0.000 claims abstract description 8
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910001928 zirconium oxide Inorganic materials 0.000 claims abstract description 7
- 238000002485 combustion reaction Methods 0.000 claims description 10
- 235000019504 cigarettes Nutrition 0.000 claims description 9
- 238000009826 distribution Methods 0.000 claims description 6
- 238000005457 optimization Methods 0.000 abstract description 4
- 239000000779 smoke Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
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- Regulation And Control Of Combustion (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The utility model belongs to an automatic boiler operation control device. The automatic boiler operation control device comprises a coal conveying belt, a flue, a slag cooler, a primary fan and a secondary fan which are connected with a boiler, a first coal feeder, a second coal feeder and a third coal feeder and a weighing flow meter which are arranged on the coal conveying belt, wherein a boiler door is arranged on the boiler; an air distributing plate is arranged inside the boiler; a main steam header is arranged at the top of the flue; a low-temperature superheater header is arranged inside the flue; an induced draft fan is connected with the flue; a PCO platform is connected with a DCS database in a DCS distributed control system; the DCS distributed control system comprises the DCS database, and a DCS main control card connected with the DCS database; the DCS database is connected with the weighing flow meter, a boiler chamber negative-pressure difference transmitter at the upper part in the boiler, a smoke oxygen content zirconium oxide analyzer inside the flue, a main steam pressure meter at the top of the main steam header, a bed temperature thermoelectric couple in the boiler and a material bed pressure difference transmitter in the boiler respectively. The automatic boiler operation control device has the advantages as follows: the investment is reduced, the device is easy to realize and convenient to operate, the boiler can be ensured to operate with the optimal efficiency, the optimization of all operating indexes is realized, and safe, stable and long-periodic operation of the boiler is guaranteed.
Description
Technical field
The utility model belongs to boiler and automatically moves control technology field, is specifically related to a kind of flow process simple, controls boiler automatic operation control device easily.
Background technology
Because boiler combustion system is the nonlinear system of a large time delay, close coupling, between each variablees such as main steam pressure, main steam temperature, bed temperature, cigarette oxygen content, influence each other, combustion process complexity.Conventional operation and PID control, and need operating personnel to drop into very large energy and pay close attention to constantly boiler operatiopn data, constantly adjust each valve, air door and frequency converter, and operating personnel's operant level also affects the efficiency of boiler operatiopn to a great extent simultaneously.Such control procedure is difficult to keep the operation and control index of boiler the best, is also easy to bring security incident.By the application of this covering device, can realize automatic operation and stable, the efficiently operation of boiler, reach stationarity, real-time optimization, raising control accuracy, the operant level of improving industrial process and the object of increasing economic efficiency of increase process.
Utility model content
The purpose of this utility model is to overcome defect of the prior art, and a kind of automatic operation and stable and high effective operation of realizing boiler is provided, reach stationarity, real-time optimization, raising control accuracy, the operant level of improving industrial process and the boiler automatic operation control device of increasing economic efficiency of increase process.
The purpose of this utility model is achieved in that and comprises the coal conveyer belt being connected with boiler, flue, cold slag machine, primary air fan, overfire air fan, the first feeder arranging on coal conveyer belt, the second feeder, the 3rd feeder and weighing flowmeter, on boiler, be provided with fire door, the inside of boiler is provided with air distribution plate, the top of flue is provided with main steam header, the inside of flue is provided with low temperature superheater header, the air-introduced machine being connected with flue, PCO platform is connected with the DCS database in DCS Distributed Control System, DCS Distributed Control System comprises DCS database, the DCS main controller being connected with DCS database, wherein, DCS database is connected with the bed of material differential pressure transmitter in boiler with the bed temperature thermocouple in main steam pressure table, the boiler at the cigarette oxygen content Zirconium oxide analyzer of the combustion chamber draft pressure difference transmitter of weighing flowmeter, boiler internal upper part, flue inside, main steam header top respectively, described DCS main controller respectively with the first feeder motor inverter, the second feeder motor inverter, the 3rd feeder motor inverter, primary air fan motor inverter, overfire air fan motor inverter, id-motor frequency converter and cold slag machine motor inverter are connected.Described combustion chamber draft pressure difference transmitter is arranged on 5 meters of of door upper part.Described cigarette oxygen content Zirconium oxide analyzer is arranged on the top of low temperature superheater header.Described bed temperature thermocouple is arranged on apart from air distribution plate top 25 centimeters.Described bed of material differential pressure transmitter is arranged on the air compartment place of 1 meter of fire door bottom.
The utlity model has reduced investment, easy realization, convenient operation, and can guarantee that boiler moves with best efficiency, realize the optimization of each operation index, assurance boiler safety is stablized the advantage of long-term operation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is control principle schematic diagram of the present utility model.
The specific embodiment
As Fig. 1, shown in 2, the utility model comprises the coal conveyer belt 5 being connected with boiler 1, flue 6, cold slag machine 10, primary air fan 7, overfire air fan 8, the first feeder 2 arranging on coal conveyer belt 5, the second feeder 3, the 3rd feeder 4 and weighing flowmeter 14, on boiler 1, be provided with fire door 28, the inside of boiler 1 is provided with air distribution plate 29, the top of flue 6 is provided with main steam header 30, the inside of flue 6 is provided with low temperature superheater header 31, the air-introduced machine 9 being connected with flue 6, PCO platform 25 is connected with the DCS database 26 in DCS Distributed Control System 24, DCS Distributed Control System 24 comprises DCS database 26, the DCS main controller 27 being connected with DCS database 26, wherein, DCS database 26 respectively with weighing flowmeter 14, the combustion chamber draft pressure difference transmitter 15 of boiler 1 internal upper part, the cigarette oxygen content Zirconium oxide analyzer 19 of flue 6 inside, the main steam pressure table 18 at main steam header 30 tops, bed temperature thermocouple 16 in boiler 1 is connected with the bed of material differential pressure transmitter 17 in boiler 1, described DCS main controller 27 respectively with the first feeder 2 motor inverters 11, the second feeder 3 motor inverters 12, the 3rd feeder 3 motor inverters 13, primary air fan 7 motor inverters 20, overfire air fan 8 motor inverters 21, air-introduced machine 9 motor inverters 22 are connected with cold slag machine 10 motor inverters 23.Described combustion chamber draft pressure difference transmitter 15 is arranged on, 5 meters, 28 top of fire door.Described cigarette oxygen content Zirconium oxide analyzer 19 is arranged on the top of low temperature superheater header 31.Described bed temperature thermocouple 16 is arranged on apart from air distribution plate 29 top 25 centimeters.Described bed of material differential pressure transmitter 17 is arranged on the air compartment place of 1 meter of fire door 28 bottom.
As shown in Figure 2, control principle of the present utility model is: weighing flowmeter 14, combustion chamber draft pressure difference transmitter 15, cigarette oxygen content zirconia detector 19, main steam pressure table 18, bed temperature thermocouple 16, bed of material pressure difference transmitter 17 will record and show that data upload is to DCS database 26, and DCS database 26 carries out data sharing by communication system and PCO platform 25.On PCO platform 25 to coal-supplying amount, combustion chamber draft, cigarette oxygen content, main steam pressure, bed temperature, the given reference value of bed of material differential pressure, the actual value that reference value and DCS database 26 record is carried out logical calculated, by calculate adjust result feedback to DCS database 26. then DCS main controller 27 calculating in DCS database 26 adjusted to result change into the signal of telecommunication, directly act on air-introduced machine 9 motor inverters 22, primary air fan 7 motor inverters 20, overfire air fan 8 motor inverters 21, the first feeder 2 motor inverters 11, the second feeder 3 motor inverters 12, the 3rd feeder 3 motor inverters 13, and cold slag machine 10 motor inverters 23, thereby go the rotating speed of adjusting each motor to change air inducing air quantity by the change of frequency converter output frequency, one Secondary Air air quantity, coal-supplying amount, bed drain purge, finally make the actual process index moment approach the set-point on PCO platform 25, make steam generator system stable, efficient operation.
Claims (5)
1. a boiler automatic operation control device, comprise the coal conveyer belt (5) being connected with boiler (1), flue (6), cold slag machine (10), primary air fan (7), overfire air fan (8), upper the first feeder (2) arranging of coal conveyer belt (5), the second feeder (3), the 3rd feeder (4) and weighing flowmeter (14), on boiler (1), be provided with fire door (28), the inside of boiler (1) is provided with air distribution plate (29), the top of flue (6) is provided with main steam header (30), the inside of flue (6) is provided with low temperature superheater header (31), the air-introduced machine (9) being connected with flue (6), it is characterized in that: PCO platform (25) is connected with the DCS database (26) in DCS Distributed Control System (24), DCS Distributed Control System (24) comprises DCS database (26), the DCS main controller (27) being connected with DCS database (26), wherein, DCS database (26) respectively with weighing flowmeter (14), the combustion chamber draft pressure difference transmitter (15) of boiler (1) internal upper part, the cigarette oxygen content Zirconium oxide analyzer (19) that flue (6) is inner, the main steam pressure table (18) at main steam header (30) top, bed temperature thermocouple (16) in boiler (1) is connected with the bed of material differential pressure transmitter (17) in boiler (1), described DCS main controller (27) respectively with the first feeder (2) motor inverter (11), the second feeder (3) motor inverter (12), the 3rd feeder (3) motor inverter (13), primary air fan (7) motor inverter (20), overfire air fan (8) motor inverter (21), air-introduced machine (9) motor inverter (22) is connected with cold slag machine (10) motor inverter (23).
2. boiler automatic operation control device according to claim 1, is characterized in that: described combustion chamber draft pressure difference transmitter (15) is arranged on, 5 meters, top of fire door (28).
3. boiler automatic operation control device according to claim 1, is characterized in that: described cigarette oxygen content Zirconium oxide analyzer (19) is arranged on the top of low temperature superheater header (31).
4. boiler automatic operation control device according to claim 1, is characterized in that: described bed temperature thermocouple (16) is arranged on apart from air distribution plate (29) top 25 centimeters.
5. boiler automatic operation control device according to claim 1, is characterized in that: described bed of material differential pressure transmitter (17) is arranged on the air compartment place of 1 meter of fire door (28) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320834437.6U CN203686996U (en) | 2013-12-18 | 2013-12-18 | Automatic boiler operation control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320834437.6U CN203686996U (en) | 2013-12-18 | 2013-12-18 | Automatic boiler operation control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203686996U true CN203686996U (en) | 2014-07-02 |
Family
ID=51008886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320834437.6U Expired - Lifetime CN203686996U (en) | 2013-12-18 | 2013-12-18 | Automatic boiler operation control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203686996U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105867329A (en) * | 2016-04-21 | 2016-08-17 | *** | Application of thermocouple channel in measurement of weighing signal |
| CN106774484A (en) * | 2017-04-04 | 2017-05-31 | 河北德润泽化工设备有限公司 | Tiny structure automaton in a kind of potassium sulfate reative cell based on DCS |
-
2013
- 2013-12-18 CN CN201320834437.6U patent/CN203686996U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105867329A (en) * | 2016-04-21 | 2016-08-17 | *** | Application of thermocouple channel in measurement of weighing signal |
| CN105867329B (en) * | 2016-04-21 | 2018-08-07 | *** | Application of the thermocouple channel in measuring weighing-up wave |
| CN106774484A (en) * | 2017-04-04 | 2017-05-31 | 河北德润泽化工设备有限公司 | Tiny structure automaton in a kind of potassium sulfate reative cell based on DCS |
| CN106774484B (en) * | 2017-04-04 | 2023-08-29 | 河北德润泽化工设备有限公司 | DCS-based automatic control method for micro negative pressure in potassium sulfate reaction chamber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 453731 Xinxiang Economic Development Zone, Henan Province (Xiaoji Town) Patentee after: Henan Xinlianxin Chemical Industry Group Co.,Ltd. Address before: 453731 Henan Xinxiang Economic Development Zone Xiaoji Town Henan Xinlianxin Chemical Fertilizer Co., Ltd. Patentee before: HENAN XINLIANXIN FERTILIZER Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |
|
| CX01 | Expiry of patent term |