CN103933844A - Flue gas treatment system and control method by virtue of alkaline waste water - Google Patents
Flue gas treatment system and control method by virtue of alkaline waste water Download PDFInfo
- Publication number
- CN103933844A CN103933844A CN201410139165.7A CN201410139165A CN103933844A CN 103933844 A CN103933844 A CN 103933844A CN 201410139165 A CN201410139165 A CN 201410139165A CN 103933844 A CN103933844 A CN 103933844A
- Authority
- CN
- China
- Prior art keywords
- waste water
- alkaline waste
- liquid
- spray
- aeration tank
- 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.)
- Granted
Links
Landscapes
- Treating Waste Gases (AREA)
Abstract
The invention discloses a flue gas treatment system by virtue of alkaline waste water. The flue gas treatment system by virtue of alkaline waste water comprises a tower body, an aeration tank, a spraying frame, a stock solution tank, a recycling tank, a flue gas channel, a chimney, a monitoring device, an actuating device and an operation control device. The invention also discloses a flue gas treatment control method by virtue of alkaline waste water, which comprises the following steps: step 1, generating a fuzzy control model rule list; step 2, regulating and controlling the liquid level height of alkaline waste water in the aeration tank; step 3, regulating and controlling the height position of the spraying frame; and step 4, regulating and controlling the water flow rate of a spraying channel. Flue gas is subjected to desulfurization and denitrification by alkaline waste water so as to reduce the flue gas desulfurization and denitrification cost in the prior art.
Description
Technical field
The present invention relates to treatment technology and the automation field of fire coal boiler fume, in particular a kind of flue gas desulfurization and denitrification device and control method of alkaline waste water.
Background technology
The main comburant of Mei Shi China thermal power generation, the oxysulfide producing in coal burning process, nitrogen oxide have caused day by day serious harm to China's atmospheric environment.The technology that removes of nitrogen oxide mainly contains two classes at present: burning denitration and denitrating flue gas in stove.The denitration efficiency of burning denitration technology is in 30-50% left and right in stove, but this kind of denitration technology easily affects the safe operation of boiler, and along with the further raising of environmental requirement, this technology is difficult to realize higher NOX removal efficiency.The developed countries such as America and Europe generally adopt catalytic reduction technology (SCR) to carry out denitration to flue gas.This technology denitration efficiency is high, stable, but has catalysqt deactivation, wearing and tearing, obstruction, and reducing substances is revealed and to be caused secondary pollution problems, and operation and investment cost very expensive.Conventionally the fume desulphurization method adopting is lime/lime stone-gypsum wet, and the method efficiency is higher.But China is domestic, the research of this technology is not yet had to breakthrough, this system is mainly main from Japanese import at present, the medium small boiler business burden of China 70% not at present a large amount of capital expenditures of conventional sulfur removal technology and high operating cost.In addition, form the low-grade gypsum contain a large amount of impurity after the desulfurization of lime/lime stone-gypsum wet, the processing of being abandoned of most of desulfurization product, has caused secondary pollution to environment.Therefore, low-cost, the high efficiency technology of desulphurization denitration simultaneously of research and development just seems particularly important.
Meanwhile, the a large amount of alkaline waste waters of the annual discharge of the enterprises such as China's printing and dyeing, papermaking, process hides, chemical industry, for example, the discharge capacity total amount of textile printing and dyeing wastewater in 2007 is up to 22.5 hundred million tons, the alkaline waste water of middle-size and small-size papermaking enterprise discharge approximately has more than 10 hundred million tons, and alkaline waste water need to be processed up to standard just can discharge afterwards.
The high processing cost of facing flue gas and alkaline waste water is a large technical barrier of present enterprise, and therefore, prior art has yet to be improved and developed, and seeks flue gas and alkaline waste water low-cost processes technology.
Summary of the invention
One of object of the present invention is to provide a kind of smoke processing system of alkaline waste water, it is being the chemical reaction that utilizes alkaline waste water and flue gas, remove nitrogen oxide and the sulfur oxide pollutant of high valence state in flue gas, and alkaline waste water pH value is lowered, be intended to solve the problem that existing flue gas desulfurization and denitrification and alkaline waste water processing cost are high.
For realizing above object, the technical scheme that the present invention has taked is:
A smoke processing system for alkaline waste water, it comprises:
Tower body;
Aeration tank, for the alkaline waste water of splendid attire denitration to be desulfurization, described aeration tank is arranged at the bottom of tower body, is provided with water inlet and delivery port and flue collector on described aeration tank;
Spraying rack, described spraying rack is installed tower body upside, for spraying alkaline waste water to aeration tank;
Former liquid pool, described former liquid pool is connected with spraying rack by spray channels, and this former liquid pool is also connected with the water inlet of aeration tank by intake tunnel, and wherein, described intake tunnel is connected with former liquid pool respectively by the first water inlet subchannel and return flow line;
Recovery pond, described recovery pond is connected with the delivery port of aeration tank by exhalant canal;
Exhaust gases passes, described exhaust gases passes is connected with flue collector, for inputting flue gas to flue collector;
Chimney, described chimney is connected with the top of tower body, for discharging reacted waste gas;
Monitoring device, described monitoring device comprises: be installed on the tower body inwall between spraying rack and aeration tank, for monitoring the ultrasonic level gage of the alkaline waste water liquid level of aeration tank, be installed in tower body, for monitoring the infrared temperature sensor of the alkaline waste water temperature of aeration tank, be installed in aeration tank, for monitoring the pH value sensor of the alkaline waste water pH value of aeration tank, be installed in spray channels, for monitoring the first liquid flowmeter of spray fluid flow, be installed in intake tunnel, for monitoring the second liquid flowmeter of flow of inlet water, be installed in exhalant canal, for monitoring the 3rd fluid flowmeter of water flow, be installed in exhaust gases passes, for the gas flowmeter that input gas flow is monitored, be installed on tower body top, for measuring the infrared distance measuring sensor of distance between the top of tower body and spraying rack, be installed in spray channels, for the first liquid pressure sensor that the pressure of spray liquid is monitored, be installed in return flow line, for the second liquid pressure sensor that the pressure of withdrawing fluid is monitored, and be installed in chimney, for the flue gas analyzer sensor that waste gas is monitored,
Actuating unit, described actuating unit comprises: be installed on respectively the first driven opening bottom valve and the second driven opening bottom valve on intake tunnel and exhalant canal, be installed on respectively the first variable frequency pump and the second variable frequency pump on spray channels and the first water inlet subchannel, and be installed on the elevator of spraying rack upside for pulling spraying rack to move up and down;
Operation control device, described operation control device, for according to the monitored data of monitoring device, carries out fuzzy control to actuating unit.
Described intake tunnel is further connected with former liquid pool by one second water inlet subchannel, on described the second water inlet subchannel, a water pump is installed, one hydraulic turbine is installed on described exhalant canal, the described hydraulic turbine drives pump working by power transmission shaft, the hydraulic turbine that while utilizing alkaline waste water to discharge, the power conversion of current is rotating mechanical energy, the recycling hydraulic turbine drives water pump acting, thereby reduces the quantity of electric water pump.
A plurality of minute flues that are connected with flue collector are installed in described flue collector, and described subchannel is provided with a plurality of apertures that are connected with aeration tank.
On the return flow line between second liquid pressure sensor and former liquid pool, a safety valve is installed.
Described operation control device is PLC.
One of object of the present invention is to provide a kind of control method of smoke processing system of alkaline waste water, it is being the chemical reaction that utilizes alkaline waste water and flue gas, remove nitrogen oxide and the sulfur oxide pollutant of high valence state in flue gas, and alkaline waste water pH value is lowered, be intended to solve the problem that existing flue gas desulfurization and denitrification and alkaline waste water processing cost are high.
For realizing above object, the technical scheme that the present invention has taked is:
A method of controlling according to the smoke processing system of above-mentioned alkaline waste water, it comprises the following steps:
Step 1, generation fuzzy control model rule list, described fuzzy control model rule list comprises liquid level specified rate defuzzification, spray height specified rate defuzzification and spray rate specified rate defuzzification;
Step 2, according to the liquid height specified rate of liquid level specified rate defuzzification, combine with the monitored data of ultrasonic level gage, by fuzzy reasoning, obtaining best PID regulates after control parameter, export one first control signal, this first control signal is for regulating the liquid level of controlling aeration tank neutral and alkali waste water;
Step 3, according to the spray height specified rate of spray height specified rate defuzzification, combine with the monitored data of infrared distance measuring sensor, by fuzzy reasoning, obtaining best PID regulates after control parameter, export one second control signal, this second control signal is for regulating the height and position of controlling spraying rack;
Step 4, according to the spray rate specified rate of spray rate specified rate defuzzification, combine with the monitored data of first liquid flowmeter, by fuzzy reasoning, obtaining best PID regulates after control parameter, export one the 3rd control signal, the 3rd control signal is for regulating the discharge of controlling spray channels.
In described step 2, the control method of the liquid level of aeration tank neutral and alkali waste water comprises following one or more:
The first control signal is by regulating the aperture of the first driven opening bottom valve, thus the flow rate of liquid of adjustment intake tunnel;
The first control signal passes through to regulate the aperture of the second driven opening bottom valve, thereby adjusts the flow rate of liquid of aquaporin;
The first control signal is by regulating the frequency of supply of the second variable frequency pump to change the rotating speed of the second variable frequency pump, thereby adjusts the flow rate of liquid of intake tunnel.
In described step 3, the second control signal regulates the height and position of controlling spraying rack by elevator.
In described step 4, the 3rd control signal is by regulating the frequency of supply of the first variable frequency pump to change the rotating speed of the first variable frequency pump, thereby adjusts the flow rate of liquid of spray channels.
The best monitor database based on pH value sensor, gas flowmeter and flue gas analyzer sensor of described fuzzy control model rule list for obtaining according to the many experiments of liquid level, spray height and spray rate.
In the present invention:
The sampled data of the alkaline waste water temperature 1, online experiment being obtained, alkaline waste water pH value, alkaline waste water liquid level, alkaline waste water spray height, alkaline waste water spray rate, flue gas flow rate, discharge exhaust gas components is carried out segmentation, realize discretization, the obfuscation of input and output amount, find out the mapping relations between input and output, by online data analysis, set up model and the rule list of fuzzy control;
2, the variation of alkaline waste water temperature, alkaline waste water pH value, flue gas flow rate in the flue gas desulfurization and denitrification device of system Real-Time Monitoring alkaline waste water, according to aforesaid Mathematical Modeling, inquiry fuzzy control rule table, utilize controller, control alkaline waste water liquid level, alkaline waste water replacing, alkaline waste water spray height, alkaline waste water spray rate, realize alkaline waste water and fully react with the sulfur and nitrogen oxides in flue gas;
The hydraulic turbine that while 3, utilizing alkaline waste water to discharge, the power conversion of current is rotating mechanical energy, the recycling hydraulic turbine drives water pump acting.Water pump for hydroturbine is main, and electric frequency conversion water pump is auxiliary supply alkaline waste water.Certainly, can be also take electric frequency conversion water pump as main, water pump for hydroturbine be auxiliary supply alkaline waste water.
4, each equipment operational factor of the flue gas desulfurization and denitrification system of system Real-Time Monitoring alkaline waste water, carries out keeping records to each service data, so that later analysis and optimization.
The invention has the beneficial effects as follows: utilize alkaline waste water to process and reduce the cost of flue gas desulfurization and denitrification in the past flue gas desulfurization and denitrification.
Accompanying drawing explanation
Fig. 1 is the smoke processing system structural representation of alkaline waste water of the present invention.
Fig. 2 is the control structure figure of the flue gas desulfurization and denitrification treatment system of alkaline waste water of the present invention.
Fig. 3 is the control method schematic diagram of the smoke processing system of alkaline waste water of the present invention.
Wherein: 1, tower body; 11, aeration tank; 12, flue collector; 121, divide flue; 2, former liquid pool; 21, spray channels; 22, intake tunnel; 23, water inlet subchannel; 24, water inlet subchannel; 25, return flow line; 251, safety valve; 3, recovery pond; 31, exhalant canal; 4, chimney; 5, spraying rack; 6, exhaust gases passes; 7, monitoring device; 71, ultrasonic level gage; 72, infrared temperature sensor; 73, pH value sensor; 74, fluid flowmeter; 741, fluid flowmeter; 742, fluid flowmeter; 743, fluid flowmeter; 75, gas flowmeter; 76, infrared distance measuring sensor; 77, liquid-pressure pick-up; 771, liquid-pressure pick-up; 772, liquid-pressure pick-up; 78, flue gas analyzer sensor; 8, actuating unit; 81, driven opening bottom valve; 811, driven opening bottom valve; 812, driven opening bottom valve; 82, variable frequency pump; 821, variable frequency pump; 822, variable frequency pump; 83, elevator; 91, the hydraulic turbine; 92, water pump; 93, power transmission shaft; 10, operation control device.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, content of the present invention is described in further details.
Embodiment
For alkaline waste water is fully reacted with the sulfur and nitrogen oxides in flue gas, discharge flue gas reaches discharge standard.First by a large amount of experiments, obtain the relation between alkaline waste water temperature, alkaline waste water pH value, alkaline waste water liquid level, alkaline waste water spray height, alkaline waste water spray rate, flue gas flow rate and discharge exhaust gas components; By online data analysis, set up the model of fuzzy control again; The variation of alkaline waste water temperature, alkaline waste water pH value, flue gas flow rate in the flue gas desulfurization and denitrification device of the monitoring alkaline waste water that final system is real-time, control alkaline waste water liquid level, alkaline waste water replacing, alkaline waste water spray height, alkaline waste water spray rate, realize alkaline waste water and fully react with the sulfur and nitrogen oxides in flue gas.Need to guarantee that alkaline waste water pH value in the flue gas desulfurization and denitrification treatment facility of alkaline waste water is in setting range, the waste water in device need to constantly be replaced.
Please refer to shown in Fig. 1 and Fig. 2, the flue gas desulfurization and denitrification treatment system of whole alkaline waste water can be divided into four parts; Desulphurization denitration equipment, monitoring device 7, operation control device 10, actuating unit 8.
Wherein, desulphurization denitration equipment comprises: tower body 1; Be arranged at the aeration tank 11 of the bottom of tower body 1, this aeration tank 11, for the alkaline waste water of splendid attire denitration to be desulfurization, is provided with water inlet and delivery port and flue collector 12 on aeration tank 11; The spraying rack 5 of tower body 1 upside is installed, and this spraying rack 5 is for 11 spraying alkaline waste water to aeration tank; Former liquid pool 2 is connected with spraying rack 5 by spray channels 21, this former liquid pool 2 is also connected with the water inlet of aeration tank 11 by intake tunnel 22, wherein, intake tunnel 22 is connected with former liquid pool 2 respectively by water inlet subchannel 23 and return flow line 25, one safety valve 251 is installed on the return flow line 25 between liquid-pressure pick-up 772 and former liquid pool 2, and safety valve 251 is for guaranteeing that return flow line 25 internal pressures are in safe range; Recovery pond 3, recovery pond 3 is connected with the delivery port of aeration tank 11 by exhalant canal 31; Exhaust gases passes 6, exhaust gases passes 6 is connected with flue collector 12, for inputting flue gas to flue collector 12, in flue collector 12, be provided with a plurality of subchannels 121, the plurality of subchannel 121 is provided with a plurality of apertures that are connected with aeration tank 11, reaches the object of desulphurization denitration by flue gas and reacting of alkaline waste water; Chimney 4, chimney 4 is connected with the top of tower body 1, for discharging reacted waste gas.
Monitoring device 7 comprises: be installed on tower body 1 inwall between spraying rack 5 and aeration tank 11, for monitoring the ultrasonic level gage 71 of the alkaline waste water liquid level of aeration tank 11; Be installed in tower body 1, for monitoring the infrared temperature sensor 72 of the alkaline waste water temperature of aeration tank 11; Be installed in aeration tank 11, for monitoring the pH value sensor 73 of the alkaline waste water pH value of aeration tank 11; Fluid flowmeter 74, fluid flowmeter 74 comprise be installed in spray channels 21, for monitoring the fluid flowmeter 741 of spray fluid flow, be installed in intake tunnel 22, for monitoring the fluid flowmeter 742 of flow of inlet water, be installed in exhalant canal 31, for monitoring the fluid flowmeter 743 of water flow; Be installed on the gas flowmeter 75 in exhaust gases passes 6, for input gas flow is monitored; Be installed on tower body 1 top, for measuring the infrared distance measuring sensor 76 of distance between the top of tower body 1 and spraying rack 5; Liquid-pressure pick-up 77, liquid-pressure pick-up 77 comprise be loaded in spray channels 21, for liquid-pressure pick-up 771 that the pressure of spray liquid is monitored and be installed on return flow line 25, liquid-pressure pick-up 772 for the pressure of withdrawing fluid is monitored; Be installed on the flue gas analyzer sensor 78 in chimney 4, for exhaust gas constituents is monitored.Monitoring device 7 all uses the output of 4-20mA current signal.
Actuating unit 8, actuating unit 8 comprises driven opening bottom valve 81, variable frequency pump 82 and elevator 83, wherein, driven opening bottom valve 81 comprises driven opening bottom valve 811 and the driven opening bottom valve 812 being installed on respectively on intake tunnel 22 and exhalant canal 31, variable frequency pump 82 comprises variable frequency pump 821 and the variable frequency pump 822 being installed on respectively on spray channels 21 and water inlet subchannel 23, and elevator 83 is installed on spraying rack 5 upsides for pulling spraying rack 5 to move up and down.The hydraulic turbine that while utilizing alkaline waste water to discharge, the power conversion of current is rotating mechanical energy, the recycling hydraulic turbine drives water pump acting, the water pump hydraulic turbine being driven by hydraulic principle carries out flow output and controls, thereby reach the object of exhaust gas utilization, can save mass energy, specifically intake tunnel 22 is connected with former liquid pool 2 by a water inlet subchannel 24, on water inlet subchannel 24, a water pump 92 is installed, one hydraulic turbine 91 is installed on exhalant canal 31, and the hydraulic turbine 91 drives water pump 92 work by power transmission shaft 93.Driven opening bottom valve 811 and driven opening bottom valve 812 are controlled respectively the flow velocity of intake tunnel 22 and exhalant canal 31; The hydraulic turbine that when hydraulic turbine 91 utilizes alkaline waste water to discharge, the power conversion of current is rotating mechanical energy, the recycling hydraulic turbine 91 drives water pump 92 actings; Variable frequency pump 822 auxiliary turbine 91 work, when the hydraulic turbine 91 power outputs can not meet job requirement, by the auxiliary output acting of variable frequency pump 822.Variable frequency pump 821 is controlled the flow velocity of spray channels 21, and then controls the spray rate of spraying rack 5.Actuating unit input adopts 4-20mA current signal.
Operation control device 10, operation control device 10, for according to the monitored data of monitoring device 7, carries out fuzzy control to actuating unit 8, and operation control device 10 adopts and can adapt to various severe running environment, antijamming capability is strong, the S7-300 Siemens PLC C that reliability is strong.At the built-in vertical fuzzy rule base of PLC, monitoring device all uses 4-20mA current signal that input quantity is passed in PLC, to monitor input quantity obfuscation, according to the input quantity inquiry fuzzy rule base after obfuscation, by fuzzy rule base, draw fuzzy control quantity, to after fuzzy control quantity defuzzification, draw accurate controlled quentity controlled variable, through output module, executing agency is controlled, PLC output adopts 4-20mA current signal.
Between monitoring device 7, operation control device 10, actuating unit 8 threes, adopt close-loop control mode, improve control accuracy.
Please refer to shown in Fig. 3, a kind of method that smoke processing system of alkaline waste water carries out desulphurization denitration control comprises the following steps:
Step 1, generation fuzzy control model rule list, the waste gas discharge optimum under different waste water pH values and gas input condition of fuzzy control model rule list for obtaining according to the many experiments of liquid level, spray height and spray rate.For different alkaline waste water pH values and flue gas input quantity, by repeatedly debugging liquid level, spray height and spray rate, reached the effect of energy-saving and emission-reduction.Fuzzy control model rule list, according to alkaline waste water pH value, flue gas input quantity and exhaust gas constituents content, is exported corresponding liquid level specified rate defuzzification, spray height specified rate defuzzification and spray rate specified rate defuzzification.
Step 2, according to the liquid height specified rate of liquid level specified rate defuzzification, combine with the monitored data of ultrasonic level gage 71, by fuzzy reasoning, obtaining best PID regulates after control parameter, export a control signal, this control signal is for regulating the liquid level of controlling aeration tank 11 neutral and alkali waste water; The control method of the liquid level of aeration tank 11 neutral and alkali waste water comprises following one or more: control signal is by regulating the aperture of driven opening bottom valve 811, thereby adjusts the flow rate of liquid of intake tunnel 22; Control signal passes through to regulate the aperture of driven opening bottom valve 812, thereby adjusts the flow rate of liquid of aquaporin 31; Control signal is by regulating the rotating speed of the frequency of supply change variable frequency pump 822 of variable frequency pump 822, thus the flow rate of liquid of adjustment intake tunnel 22.
Step 3, according to the spray height specified rate of spray height specified rate defuzzification, combine with the monitored data of infrared distance measuring sensor 76, by fuzzy reasoning, obtaining best PID regulates after control parameter, export a control signal, this control signal is for regulating the height and position of controlling spraying rack 5; Control signal regulates the height and position of controlling spraying rack 5 by elevator 83.
Step 4, according to the spray rate specified rate of spray rate specified rate defuzzification, combine with the monitored data of fluid flowmeter 741, by fuzzy reasoning, obtaining best PID regulates after control parameter, export a control signal, this control signal is for regulating the discharge of controlling spray channels 21.Control signal is by regulating the rotating speed of the frequency of supply change variable frequency pump 821 of variable frequency pump 821, thus the flow rate of liquid of adjustment spray channels 21.
Step 2-4 carries out simultaneously, also can adopt as required one of them step or two steps to reach the effect of final energy-saving and emission-reduction.
Although the present invention describes by specific embodiment, it will be appreciated by those skilled in the art that, without departing from the present invention, can also carry out various conversion and be equal to alternative the present invention.In addition, for particular condition or application, can make various modifications to the present invention, and not depart from the scope of the present invention.Therefore, the present invention is not limited to disclosed specific embodiment, and should comprise the whole embodiments that fall within the scope of the claims in the present invention.
Claims (9)
1. a smoke processing system for alkaline waste water, is characterized in that, it comprises:
Tower body (1);
Aeration tank (11), for the alkaline waste water of splendid attire denitration to be desulfurization, described aeration tank (11) are arranged at the bottom of tower body (1), are provided with water inlet and delivery port and flue collector (12) on described aeration tank (11);
Spraying rack (5), described spraying rack (5) is installed tower body (1) upside, for (11) spray alkaline waste water to aeration tank;
Former liquid pool (2), described former liquid pool (2) is connected with spraying rack (5) by spray channels (21), this former liquid pool (2) is also connected with the water inlet of aeration tank (11) by intake tunnel (22), wherein, described intake tunnel (22) is connected with former liquid pool (2) respectively by the first water inlet subchannel (23) and return flow line (25);
Recovery pond (3), described recovery pond (3) is connected with the delivery port of aeration tank (11) by exhalant canal (31);
Exhaust gases passes (6), described exhaust gases passes (6) is connected with flue collector (12), for inputting flue gas to flue collector (12);
Chimney (4), described chimney (4) is connected with the top of tower body (1), for discharging reacted waste gas;
Monitoring device (7), described monitoring device (7) comprising: be installed on tower body (1) inwall between spraying rack (5) and aeration tank (11), be used for monitoring the ultrasonic level gage (71) of the alkaline waste water liquid level of aeration tank (11), be installed in tower body (1), be used for monitoring the infrared temperature sensor (72) of the alkaline waste water temperature of aeration tank (11), be installed in aeration tank (11), be used for monitoring the pH value sensor (73) of the alkaline waste water pH value of aeration tank (11), be installed in spray channels (21), for monitoring the first liquid flowmeter (741) of spray fluid flow, be installed in intake tunnel (22), for monitoring the second liquid flowmeter (742) of flow of inlet water, be installed in exhalant canal (31), for monitoring the 3rd fluid flowmeter (743) of water flow, be installed in exhaust gases passes (6), for the gas flowmeter (75) that input gas flow is monitored, be installed on tower body (1) top, be used for measuring the infrared distance measuring sensor (76) of distance between the top of tower body (1) and spraying rack (5), be installed in spray channels (21), for the first liquid pressure sensor (771) that the pressure of spray liquid is monitored, be installed in return flow line (25), for the second liquid pressure sensor (772) that the pressure of withdrawing fluid is monitored, and be installed in chimney (4), for the flue gas analyzer sensor (78) that waste gas is monitored,
Actuating unit (8), described actuating unit (8) comprising: be installed on respectively the first driven opening bottom valve (811) and the second driven opening bottom valve (812) on intake tunnel (22) and exhalant canal (31), be installed on respectively the first variable frequency pump (821) and the second variable frequency pump (822) in spray channels (21) and the first water inlet subchannel (23), and be installed on spraying rack (5) upside and be used for the elevator (83) that pulls spraying rack (5) to move up and down;
Operation control device (10), described operation control device (10), for according to the monitored data of monitoring device (7), carries out fuzzy control to actuating unit (8).
Described intake tunnel (22) is further connected with former liquid pool (2) by one second water inlet subchannel (24), on described the second water inlet subchannel (24), a water pump (92) is installed, the upper hydraulic turbine (91) of installing of described exhalant canal (31), the described hydraulic turbine (91) drives water pump (92) work by power transmission shaft (93).
2. the smoke processing system of alkaline waste water according to claim 1, it is characterized in that, a plurality of minute flues (121) that are connected with flue collector (12) are installed in described flue collector (12), and described subchannel (121) is provided with a plurality of apertures that are connected with aeration tank (11).
3. the smoke processing system of alkaline waste water according to claim 1, is characterized in that, the upper safety valve (251) of installing in return flow line (25) between second liquid pressure sensor (772) and former liquid pool (2).
4. the smoke processing system of alkaline waste water according to claim 1, is characterized in that, described operation control device (10) is PLC.
5. a method of controlling according to the smoke processing system of the alkaline waste water described in claim 1-4 any one, is characterized in that, it comprises the following steps:
Step 1, generation fuzzy control model rule list, described fuzzy control model rule list comprises liquid level specified rate defuzzification, spray height specified rate defuzzification and spray rate specified rate defuzzification;
Step 2, according to the liquid height specified rate of liquid level specified rate defuzzification, combine with the monitored data of ultrasonic level gage (71), by fuzzy reasoning, obtaining best PID regulates after control parameter, export one first control signal, this first control signal is used for regulating the liquid level of controlling aeration tank (11) neutral and alkali waste water;
Step 3, according to the spray height specified rate of spray height specified rate defuzzification, combine with the monitored data of infrared distance measuring sensor (76), by fuzzy reasoning, obtaining best PID regulates after control parameter, export one second control signal, this second control signal is used for regulating the height and position of controlling spraying rack (5);
Step 4, according to the spray rate specified rate of spray rate specified rate defuzzification, combine with the monitored data of first liquid flowmeter (741), by fuzzy reasoning, obtaining best PID regulates after control parameter, export one the 3rd control signal, the 3rd control signal is used for regulating the discharge of controlling spray channels (21).
6. method according to claim 5, is characterized in that, in described step 2, the control method of the liquid level of aeration tank (11) neutral and alkali waste water comprises following one or more:
The first control signal is by regulating the aperture of the first driven opening bottom valve (811), thus the flow rate of liquid of adjustment intake tunnel (22);
The first control signal passes through to regulate the aperture of the second driven opening bottom valve (812), thereby adjusts the flow rate of liquid of aquaporin (31);
The first control signal changes the rotating speed of the second variable frequency pump (822) by the frequency of supply of adjusting the second variable frequency pump (822), thereby adjusts the flow rate of liquid of intake tunnel (22).
7. method according to claim 5, is characterized in that, in described step 3, the second control signal regulates the height and position of controlling spraying rack (5) by elevator (83).
8. method according to claim 5, it is characterized in that, in described step 4, the 3rd control signal changes the rotating speed of the first variable frequency pump (821) by the frequency of supply of adjusting the first variable frequency pump (821), thereby adjusts the flow rate of liquid of spray channels (21).
9. method according to claim 5, it is characterized in that the best monitor database based on pH value sensor (73), gas flowmeter (75) and flue gas analyzer sensor (78) of described fuzzy control model rule list for obtaining according to the many experiments of liquid level, spray height and spray rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410139165.7A CN103933844B (en) | 2014-04-08 | 2014-04-08 | A kind of smoke processing system of alkaline waste water and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410139165.7A CN103933844B (en) | 2014-04-08 | 2014-04-08 | A kind of smoke processing system of alkaline waste water and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103933844A true CN103933844A (en) | 2014-07-23 |
| CN103933844B CN103933844B (en) | 2015-12-30 |
Family
ID=51181877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410139165.7A Active CN103933844B (en) | 2014-04-08 | 2014-04-08 | A kind of smoke processing system of alkaline waste water and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103933844B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104162355A (en) * | 2014-08-18 | 2014-11-26 | 营口东吉科技（集团）有限公司 | Stage-style variable frequency carbon dioxide enrichment method |
| CN106527147A (en) * | 2016-12-19 | 2017-03-22 | 华北电力大学（保定） | Fuzzy self-tuning PID control method used for denitration control system |
| CN110694452A (en) * | 2019-10-18 | 2020-01-17 | 成都六九一四科技有限公司 | Cracked waste gas alkaline washing spray tower for battery recovery based on electromagnetic induction |
| CN110848070A (en) * | 2019-10-23 | 2020-02-28 | 江苏大学 | Water turbine aeration system |
| CN110898616A (en) * | 2019-12-04 | 2020-03-24 | 徐州申恒环境科技有限公司 | Waste gas suitable for spinning factory and treatment process thereof |
| CN114210189A (en) * | 2021-11-08 | 2022-03-22 | 珠海长炼石化设备有限公司 | Hydrogen desulfurization absorption tower |
| CN114355769A (en) * | 2021-11-29 | 2022-04-15 | 华北电力大学（保定） | Fuzzy control method and system for high-salt water desulfurization recycling amount |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4525142A (en) * | 1984-06-11 | 1985-06-25 | Research-Cottrell, Inc. | Process for treating flue gas with alkali injection and electron beam |
| US20030053942A1 (en) * | 2001-08-09 | 2003-03-20 | Fernandez Rafael Vidal | Chemical-mechanical process to reduce the contamination caused by gases and products resulting from the combustion of fossil fuels, petroleum and its by-products |
| CN101716459A (en) * | 2010-01-08 | 2010-06-02 | 山东新汶热电有限公司 | Integrated method of boiler gas desulfurization and desulfurization waste liquid treatment |
| CN101856590A (en) * | 2010-06-11 | 2010-10-13 | 清华大学 | Carbon capturing system and method for controlling electric carbon coordination in carbon capturing power plant after combustion |
| CN201885472U (en) * | 2010-12-07 | 2011-06-29 | 中国科学院广州能源研究所 | Printing and dyeing wastewater heat energy recovery system |
| CN102172467A (en) * | 2011-02-18 | 2011-09-07 | 中国科学院广州能源研究所 | Method and system for combined treatment of boiler smoke and alkaline waste water and waste heat utilization |
| CN201997255U (en) * | 2011-03-03 | 2011-10-05 | 中国科学院广州能源研究所 | Aerated integrated desulfuration and dust removal device |
| CN202902317U (en) * | 2012-11-27 | 2013-04-24 | 哈尔滨建华热能设备制造有限公司 | Single-body multi-stage cremator tail gas purifying device |
| CN103120891A (en) * | 2012-11-26 | 2013-05-29 | 罕王实业集团有限公司 | Flue gas sulfur detection and desorption control system of energy-saving and environment-friendly laterite-nickel ore smelting vertical furnace |
| CN103316573A (en) * | 2013-07-16 | 2013-09-25 | 国家***天津海水淡化与综合利用研究所 | Resource reclamation type membrane flue gas desulphurization and denitration device and its technology |
| CN103480260A (en) * | 2013-09-17 | 2014-01-01 | 上海大学 | Wet flue gas desulphurization technology by utilization of ethylene waste lye |
-
2014
- 2014-04-08 CN CN201410139165.7A patent/CN103933844B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4525142A (en) * | 1984-06-11 | 1985-06-25 | Research-Cottrell, Inc. | Process for treating flue gas with alkali injection and electron beam |
| US20030053942A1 (en) * | 2001-08-09 | 2003-03-20 | Fernandez Rafael Vidal | Chemical-mechanical process to reduce the contamination caused by gases and products resulting from the combustion of fossil fuels, petroleum and its by-products |
| CN101716459A (en) * | 2010-01-08 | 2010-06-02 | 山东新汶热电有限公司 | Integrated method of boiler gas desulfurization and desulfurization waste liquid treatment |
| CN101856590A (en) * | 2010-06-11 | 2010-10-13 | 清华大学 | Carbon capturing system and method for controlling electric carbon coordination in carbon capturing power plant after combustion |
| CN201885472U (en) * | 2010-12-07 | 2011-06-29 | 中国科学院广州能源研究所 | Printing and dyeing wastewater heat energy recovery system |
| CN102172467A (en) * | 2011-02-18 | 2011-09-07 | 中国科学院广州能源研究所 | Method and system for combined treatment of boiler smoke and alkaline waste water and waste heat utilization |
| CN201997255U (en) * | 2011-03-03 | 2011-10-05 | 中国科学院广州能源研究所 | Aerated integrated desulfuration and dust removal device |
| CN103120891A (en) * | 2012-11-26 | 2013-05-29 | 罕王实业集团有限公司 | Flue gas sulfur detection and desorption control system of energy-saving and environment-friendly laterite-nickel ore smelting vertical furnace |
| CN202902317U (en) * | 2012-11-27 | 2013-04-24 | 哈尔滨建华热能设备制造有限公司 | Single-body multi-stage cremator tail gas purifying device |
| CN103316573A (en) * | 2013-07-16 | 2013-09-25 | 国家***天津海水淡化与综合利用研究所 | Resource reclamation type membrane flue gas desulphurization and denitration device and its technology |
| CN103480260A (en) * | 2013-09-17 | 2014-01-01 | 上海大学 | Wet flue gas desulphurization technology by utilization of ethylene waste lye |
Non-Patent Citations (1)
| Title |
|---|
| 李栋等: "基于模糊控制的火电厂湿法烟气脱硫***", 《测控技术》, vol. 32, no. 1, 31 January 2013 (2013-01-31), pages 72 - 75 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104162355A (en) * | 2014-08-18 | 2014-11-26 | 营口东吉科技（集团）有限公司 | Stage-style variable frequency carbon dioxide enrichment method |
| CN106527147A (en) * | 2016-12-19 | 2017-03-22 | 华北电力大学（保定） | Fuzzy self-tuning PID control method used for denitration control system |
| CN110694452A (en) * | 2019-10-18 | 2020-01-17 | 成都六九一四科技有限公司 | Cracked waste gas alkaline washing spray tower for battery recovery based on electromagnetic induction |
| CN110848070A (en) * | 2019-10-23 | 2020-02-28 | 江苏大学 | Water turbine aeration system |
| CN110898616A (en) * | 2019-12-04 | 2020-03-24 | 徐州申恒环境科技有限公司 | Waste gas suitable for spinning factory and treatment process thereof |
| CN114210189A (en) * | 2021-11-08 | 2022-03-22 | 珠海长炼石化设备有限公司 | Hydrogen desulfurization absorption tower |
| CN114355769A (en) * | 2021-11-29 | 2022-04-15 | 华北电力大学（保定） | Fuzzy control method and system for high-salt water desulfurization recycling amount |
| CN114355769B (en) * | 2021-11-29 | 2023-11-03 | 华北电力大学（保定） | Fuzzy control method for high-salt water desulfurization recycling amount and desulfurization system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103933844B (en) | 2015-12-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103933844B (en) | A kind of smoke processing system of alkaline waste water and control method | |
| CN104722203B (en) | A kind of SCR denitration control system of flue gas of heating furnace and method | |
| CN113082954A (en) | Whole-process intelligent operation regulation and control system of wet desulphurization device | |
| CN102151481A (en) | Monitoring and automatic control system in desulfurization process for magnesium-based seawater ships | |
| CN109513323A (en) | A kind of real-time monitoring for wet process depickling and energy-saving system and method | |
| CN110681254B (en) | Semidry method flue gas treatment control system based on model | |
| CN111905536B (en) | Automatic control system for pH value of slurry passing through desulfurization absorption tower | |
| CN103455055A (en) | Method for adjusting pH value through multipoint detection fuzzy PID control in raw water treatment | |
| CN201058282Y (en) | Sea water desulfurization system | |
| CN103961990B (en) | A kind of flue gas repeatedly aeration system for desulfuration and denitration and control method | |
| CN108051117B (en) | SCR denitration continuous ammonia injection temperature online monitoring and controlling system and method | |
| CN106268273A (en) | Limestone gypsum wet flue gas desulfurizing device is automatically for slurry control system | |
| CN203017969U (en) | Intelligent flue gas desulphurization and purification control system | |
| CN211274144U (en) | Volatile organic matter processing system suitable for coal chemical industry coking plant | |
| CN205676212U (en) | Intelligent sewage processing system | |
| CN110652856B (en) | SNCR control system based on model | |
| CN112051793A (en) | Large-scale waste heat recovery control system | |
| CN203648379U (en) | Automatic urea-adding device for selective non-catalytic reduction flue gas denitrification | |
| CN216093072U (en) | Energy-saving control device for wet desulphurization circulating pump | |
| CN205650071U (en) | Automatically regulated adds ammonia system based on pH value | |
| CN104020792A (en) | Automatic control system for flue gas denitration of electric power plant | |
| CN114625186A (en) | Multi-target integrated control system and control method for starting and stopping process of thermal power generating unit | |
| CN209549121U (en) | A kind of real-time monitoring for wet process depickling and energy-saving system | |
| CN112574787A (en) | Blast furnace gas TRT post-desulfurization equipment and process | |
| CN208340485U (en) | Ammonia desulfuration equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |