CN206463775U - A kind of denitration intelligence control system - Google Patents
A kind of denitration intelligence control system Download PDFInfo
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- CN206463775U CN206463775U CN201720134311.6U CN201720134311U CN206463775U CN 206463775 U CN206463775 U CN 206463775U CN 201720134311 U CN201720134311 U CN 201720134311U CN 206463775 U CN206463775 U CN 206463775U
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- magnetic valve
- denitration
- control system
- intelligence control
- switch board
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Abstract
The utility model discloses a kind of denitration intelligence control system, the denitration intelligence control system includes switch board, power module, pressure transmitter, level meter, central air pump, dispenser, temperature sensor, blanking measurement device, reductor, pipeline conveyer, roots blower, motor, first magnetic valve, second magnetic valve, 3rd magnetic valve and the 4th magnetic valve, the switch board respectively with power module, pressure transmitter, level meter, central air pump, dispenser, temperature sensor, blanking measurement device, reductor, pipeline conveyer, first magnetic valve, second magnetic valve, 3rd magnetic valve and the 4th magnetic valve are connected, the switch board passes through the first relay, second relay is connected with roots blower and motor respectively.The utility model reducing agent and flue gas degree of mixing are good, denitration rate is high, improve the clearance of NOx in flue gas, reduce the pollution to environment.
Description
Technical field
A kind of the utility model industrial waste gas purifying technical field, and in particular to denitration intelligence control system.
Background technology
Mainly there are two kinds with the gas denitrifying technology of comparative maturity：SCR (SCR) technique and selectivity
Non-catalytic reduction denitration (SNCR) technique.The chemical principle of SNCR denitrating techniques be all by denitrfying agent (urea or
Ammonia) and smoke contacts, denitrfying agent is carried out Chemoselective reduction generation nitrogen (N2) and vapor with the NOx in flue gas
(H2O).General SNCR techniques are (800-1250 DEG C) of combustion zone progress Chemoselective reduction in the burner hearth of boiler.
SNCR advantage is not need expensive catalyst bed, has the disadvantage that denitration effect is poor, and denitration rate is usually no more than
40%.
At present, mainly there are two kinds with the gas denitrifying technology of comparative maturity：SCR (SCR) technique and
SNCR denitration (SNCR) technique.What the chemical principle of SCR and SNCR denitrating techniques was just as,
All it is, by denitrfying agent (urea or ammonia) and smoke contacts, denitrfying agent is carried out Chemoselective reduction with the NOx in flue gas
Generate nitrogen (N2) and vapor (H2O).General SNCR techniques are combustion zone (800-1250 DEG C) in the burner hearth of boiler
Carry out Chemoselective reduction.SCR techniques are then that beds are set in flue, at a temperature of 280-420 DEG C, are being urged
Agent carries out catalytic selectivity reduction reaction under conditions of existing.Catalyst investment is big in SCR techniques, smoke components influence is big,
Operating cost is high, and SNCR technical matters is simple, but desired reaction temperature is high, and the applicable type of furnace is limited, particularly chain furnace, typically
Boiler capacity is smaller, and frequently, the service condition of boiler can not meet SNCR requirement to load change.Temperature is reacted in SNCR techniques
Spend, reducing agent and flue gas, degree of mixing are poor, denitration rate is low, ammonia spill-out is big.Shortcoming that SNCR ammonia gas is escaped and do not produce pair
Boiler body corrosion phenomenon, clogging of the sulfate of ammoniac to air preheater is not produced.
At present, a kind of reducing agent of shortage and the denitration intelligence control system that flue gas degree of mixing is good, denitration rate is high.
Utility model content
The purpose of this utility model is that good, denitration rate is high with flue gas degree of mixing in view of the above-mentioned problems, providing a kind of reducing agent
Denitration intelligence control system.
To reach above-mentioned purpose, the utility model employs following technical proposal：A kind of denitration intelligence of the present utility model
Control system, the denitration intelligence control system include switch board, power module, pressure transmitter, level meter, central air pump,
Dispenser, temperature sensor, blanking measurement device, reductor, pipeline conveyer, roots blower, motor, the first magnetic valve, second
Magnetic valve, the 3rd magnetic valve and the 4th magnetic valve, the switch board respectively with power module, pressure transmitter, level meter, center
Air pump, dispenser, temperature sensor, blanking measurement device, reductor, pipeline conveyer, the first magnetic valve, the second magnetic valve,
Three magnetic valves and the 4th magnetic valve are connected, the switch board by the first relay, the second relay respectively with roots blower
It is connected with motor.First magnetic valve of the present utility model is the magnetic valve beside discharge tray, with switch board it can be controlled to flow
Amount situation, to reach the amount of control blanking.Second magnetic valve can be provided in the magnetic valve in central air pump exit, for controlling
Air quantity on the central air pump pipeline of system.3rd magnetic valve is arranged on equipment raw material cabin and the regulation at the secondary mixing bunker of raw material
Valve, can be used for adjusting the flow of mixed material therebetween, and the 4th magnetic valve is provided between pipeline conveyer and feed bin
, the amount of the material for controlling metering distribution.
When the data transfer that on-line checking is arrived is to central control module, central control module is obtained after data by calculating
Instruct Electronic Control dispenser to required input reducing agent number, while instruct central air pump adjustment stream pressure and air quantity,
Gas material mixture is sent into by injection in burner hearth by gas material hybrid system, fluidic system and starts denitration.
Further, the denitration intelligence control system includes LCDs, the switch board and LCDs phase
Connection.The journey of the turnover doses of intelligence control system, the flow of input and output gas, and denitration can be found out from LCDs
Degree, to carry out touch screen from LCDs, enters trip temperature, pressure, the regulation of magnetic valve.
Further, the denitration intelligence control system includes also including nitrogen oxides detector, the switch board and institute
Nitrogen oxides detector is stated to be connected.Nitrogen oxides detector can be seen that denitration situation of the present utility model, convenient work people
Member uses.
Further, the denitration intelligence control system also includes buzzer siren, the buzzer siren and control
Cabinet is connected.Buzzer siren can play alarm function, improve security of the present utility model.
Beneficial effect：The utility model reducing agent and flue gas degree of mixing are good, denitration rate is high, improve going for NOx in flue gas
Except rate, the pollution to environment is reduced.Macromolecule denitration technology apparatus is simple, floor space is small, to work on the spot situation
The characteristics of influenceing small.
Compared with prior art, the invention has the advantages that：
（1）Macromolecule denitrfying agent denitrating technique is compared with SNCR techniques, and its difference is that denitrfying agent is different, and macromolecule takes off
Nitre agent technique is denitrfying agent solid powder；And SNCR is ammoniacal liquor or urea；Macromolecule denitrfying agent denitrating technique and SNCR works
Skill investment is compared, and eliminates the escaping of ammonia detection investment.High-activity ommonia base reductant（NR3）And its production technology, it can be anti-
Answer in the range of 700 DEG C~1050 DEG C of temperature, with NOx reduction reaction occurs for no catalysts conditions, and keeps higher removal efficiency.
It is commonly designed the NOx removal efficiency that rational active ammonia flue-gas denitration process can reach 70%-90%.NOX+ CNH → N2↑+H2O
（Macromolecule denitration）.
（2）Denitration technology of the present utility model uses a kind of active polymeric substance as denitrification reducing agent.It can be 700
Spend to rapid in the range of 1050 degree（1-2s）Occurs reduction reaction generation nitrogen with NOX（N2）Carbon dioxide（CO2）And water（H2O）.
（3）Macromolecule denitrfying agent denitrating technique is compared with SNCR techniques, and its difference is that denitrfying agent is different, and macromolecule takes off
Nitre agent technique is denitrfying agent solid powder；And SNCR is ammoniacal liquor or urea；Macromolecule denitrfying agent denitrating technique and SNCR works
Skill investment is compared, and eliminates the escaping of ammonia detection investment.
（5）It overcomes the shortcomings such as big, big, the operating cost height of smoke components influence of catalyst investment in SCR techniques,
It is a series of to overcome that reaction temperature, reducing agent and flue gas in SNCR techniques, degree of mixing are poor, denitration rate is low, ammonia spill-out is big etc.
Shortcoming.It overcomes the shortcoming of SNCR ammonia gas escape and not produced to boiler body corrosion phenomenon, and sulfate of ammoniac is not produced to sky
The clogging of pre- device.
（4）On boiler efficiency without influence.SNCR is compared to, the latter needs to spray into ammoniacal liquor or urea liquid, and in spray
Also need to add substantial amounts of water before entering and be diluted, this influence of part water to boiler efficiency is up to 1%~2%, macromolecule flue gas
Powder is injected directly into burner hearth by denitration using air, on boiler efficiency without influence.
Brief description of the drawings
Fig. 1 is the structural representation of the control system of the present invention；
Wherein, 1 switch board, 2 power modules, 3 pressure transmitters, 4 level meters, 5 central air pumps, 6 dispensers, 7 temperature are passed
Sensor, 8 blanking measurement devices, 9 reductors, 10 pipeline conveyers, 11 roots blowers, 12 motors, 13 first magnetic valves, 14 second electricity
Magnet valve, 15 the 3rd magnetic valves, 16 the 4th magnetic valves, 17 first relays, 18 second relays.
Embodiment
Following examples only exist in illustrative purpose, without being intended to limit scope of the present utility model.
Embodiment 1
A kind of denitration intelligence control system of the present utility model, the denitration intelligence control system includes switch board 1, power supply
Module 2, pressure transmitter 3, level meter 4, central air pump 5, dispenser 6, temperature sensor 7, blanking measurement device 8, reductor 9,
Pipeline conveyer 10, roots blower 11, motor 12, the first magnetic valve 13, the second magnetic valve 14, the 3rd magnetic valve 15 and the 4th electricity
Magnet valve 16, the switch board 1 respectively with power module 2, pressure transmitter 3, level meter 4, central air pump 5, dispenser 6, temperature
Sensor 7, blanking measurement device 8, reductor 9, pipeline conveyer 10, the first magnetic valve 13, the second magnetic valve 14, the 3rd magnetic valve
15 are connected with the 4th magnetic valve 16, when the data transfer that on-line checking is arrived is to switch board, and switch board 1 is counted by calculating
According to rear instruction Electronic Control dispenser to required input reducing agent number, while instruct the central adjustment stream pressure of air pump 5 with
Air quantity, denitration is started by gas material hybrid system, fluidic system by gas material mixture feeding chain furnace injection.
The switch board 1 is connected with roots blower 11 and motor 12 respectively by the first relay 17, the second relay 18
Connect.
The denitration intelligence control system includes LCDs, and the switch board is connected with LCDs.
The denitration intelligence control system includes also including nitrogen oxides detector, the switch board and the nitrogen oxides
Detector is connected.
The denitration intelligence control system also includes buzzer siren, and the buzzer siren is connected with switch board.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement or using similar to described specific embodiment
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although more used herein switch board 1, power module 2, pressure transmitter 3, level meter 4, central air pump 5,
Dispenser 6, temperature sensor 7, blanking measurement device 8, reductor 9, pipeline conveyer 10, roots blower 11, the electricity of motor 12, first
The art such as magnet valve 13, the second magnetic valve 14, the 3rd magnetic valve 15 and the 4th magnetic valve 16, the first relay 17, the second relay 18
Language, but it is not precluded from the possibility using other terms.It is used for the purpose of more easily describing and explaining this using these terms
The essence of utility model；Any additional limitation is construed as all to disagree with the utility model spirit.
Claims (4)
1. a kind of denitration intelligence control system, it is characterised in that：The denitration intelligence control system includes switch board, power supply mould
Block, pressure transmitter, level meter, central air pump, dispenser, temperature sensor, blanking measurement device, reductor, pipeline conveyer,
Roots blower, motor, the first magnetic valve, the second magnetic valve, the 3rd magnetic valve and the 4th magnetic valve, the switch board respectively with electricity
Source module, pressure transmitter, level meter, central air pump, dispenser, temperature sensor, blanking measurement device, reductor, pipeline are defeated
Send machine, the first magnetic valve, the second magnetic valve, the 3rd magnetic valve and the 4th magnetic valve to be connected, the switch board by first after
Electrical equipment, the second relay are connected with roots blower and motor respectively.
2. denitration intelligence control system according to claim 1, it is characterised in that：The denitration intelligence control system includes
LCDs, the switch board is connected with LCDs.
3. denitration intelligence control system according to claim 1, it is characterised in that：The denitration intelligence control system includes
Also include nitrogen oxides detector, the switch board is connected with the nitrogen oxides detector.
4. the denitration intelligence control system according to any one of claims 1 to 3, it is characterised in that：The denitration is intelligently controlled
System processed also includes buzzer siren, and the buzzer siren is connected with switch board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720134311.6U CN206463775U (en) | 2017-02-15 | 2017-02-15 | A kind of denitration intelligence control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720134311.6U CN206463775U (en) | 2017-02-15 | 2017-02-15 | A kind of denitration intelligence control system |
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| Publication Number | Publication Date |
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| CN206463775U true CN206463775U (en) | 2017-09-05 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720134311.6U Expired - Fee Related CN206463775U (en) | 2017-02-15 | 2017-02-15 | A kind of denitration intelligence control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206463775U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108970385A (en) * | 2018-09-19 | 2018-12-11 | 北京巨亚国际环境科技股份有限公司 | Integrated multi-functional biomass boiler desulphurization denitration equipment |
| CN112933952A (en) * | 2021-02-02 | 2021-06-11 | 东莞市科伟环保电力有限公司 | PNCR denitration optimizing system based on big data |
-
2017
- 2017-02-15 CN CN201720134311.6U patent/CN206463775U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108970385A (en) * | 2018-09-19 | 2018-12-11 | 北京巨亚国际环境科技股份有限公司 | Integrated multi-functional biomass boiler desulphurization denitration equipment |
| CN108970385B (en) * | 2018-09-19 | 2024-01-16 | 北京巨亚国际环境科技股份有限公司 | Integrated multifunctional biomass boiler desulfurization and denitrification equipment |
| CN112933952A (en) * | 2021-02-02 | 2021-06-11 | 东莞市科伟环保电力有限公司 | PNCR denitration optimizing system based on big data |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170905 Termination date: 20220215 |