CN109351157A - A kind of flue gas cool-down spray system accurately controlled - Google Patents
A kind of flue gas cool-down spray system accurately controlled Download PDFInfo
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- CN109351157A CN109351157A CN201811411277.8A CN201811411277A CN109351157A CN 109351157 A CN109351157 A CN 109351157A CN 201811411277 A CN201811411277 A CN 201811411277A CN 109351157 A CN109351157 A CN 109351157A
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- temperature
- main jet
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- 239000007921 spray Substances 0.000 title claims abstract description 113
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 103
- 239000003546 flue gas Substances 0.000 title claims abstract description 103
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 81
- 238000001514 detection method Methods 0.000 claims abstract description 43
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims abstract description 7
- 230000004907 flux Effects 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims description 21
- 238000012546 transfer Methods 0.000 claims description 12
- 238000002386 leaching Methods 0.000 claims description 5
- 238000013459 approach Methods 0.000 claims description 4
- 230000006698 induction Effects 0.000 claims 1
- 238000006477 desulfuration reaction Methods 0.000 abstract description 10
- 230000023556 desulfurization Effects 0.000 abstract description 10
- 239000002912 waste gas Substances 0.000 abstract description 3
- 239000000571 coke Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 9
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 6
- 238000000738 capillary electrophoresis-mass spectrometry Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 235000019504 cigarettes Nutrition 0.000 description 5
- 239000000779 smoke Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000003595 mist Substances 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004886 process control Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 206010021036 Hyponatraemia Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000009692 water atomization Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chimneys And Flues (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses the flue gas cool-down spray systems that one kind accurately controls, it is related to technical field of waste gas treatment, including the spray equipment being set in flue, the water inlet pipe being connect with spray equipment, it further include that the main temperature detection device being set in flue, the flowmeter being set on water inlet pipe and electric control valve, input end signal are connected to the control unit of main temperature detection device and flowmeter, the output end signal of described control unit is connected to electric control valve；Control unit receives and processes the signal of main temperature detection device and flowmeter, and output regulation signal to electric control valve is to control the flux of electric control valve；By the setting of temperature sensor, temperature when flue gas enters can be monitored in real time, after being compared with the measured value of flowmeter, control the aperture of electric control valve, achieve the purpose that the temperature for controlling flue gas cool-down reaches desulfurization requirement, while controlling water yield, the water balance of desulphurization system will not be destroyed.
Description
Technical field
The present invention relates to technical field of waste gas treatment, more specifically, it relates to a kind of flue gas cool-down spray accurately controlled
Leaching system.
Background technique
Coke oven flue gas is coke oven heating burning waste gas, is coke oven heating coal gas (commonly referred to as firing tunnel in coking furnace) in coke oven internal combustion
The product of burning passes through coke oven smoke stack emission.And coke oven flue gas contains the stronger ingredient of the pollutions such as sulfur dioxide, nitrogen oxides,
Direct emission can cause environmental pollution.Such as the sulfur dioxide in coke oven flue gas have in part because coke oven string leakage bring into contain
Sulfur material, which burns, to be formed, and also has the burning of part sulphur-containing substance in firing tunnel in coking furnace.Therefore coke oven flue gas discharge need through
Desulfurization process is crossed, discharge standard can be met.
For the temperature of coke oven flue gas at 200 degree or so, this temperature is excessively high for desulfurization process, so being taken off
Flue gas cool-down pretreatment before sulphur.Currently, what traditional flue gas cool-down pretreatment generally used is all a large amount of by directly spraying
Water reaches cooling effect, but this method has the following problems: after the completion of spray, can not know whether flue gas is cooled to
The temperature that desulfurization requires causes flue gas to carry out the ineffective of desulfurization process, and the flue gas mass being emitted into air is irregular；
The dilutional hyponatremia added in desulphurization system is easily led to simultaneously, to destroy water balance.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of flue gas cool-down spray accurately controlled
System, by the water yield of the detection control spray to flue-gas temperature, the temperature for reaching control flue gas cool-down reaches desulfurization requirement
Purpose, while controlling water yield, the water balance of desulphurization system will not be destroyed.
To achieve the above object, the present invention provides the following technical scheme that
A kind of flue gas cool-down spray system accurately controlled, including be set in flue spray equipment, connect with spray equipment
Water inlet pipe, further include the main temperature detection device being set in flue, the flowmeter being set on water inlet pipe and motorized adjustment
Valve, input end signal are connected to the control unit of main temperature detection device and flowmeter, the output end signal of described control unit
It is connected to electric control valve；
Control unit receives and processes the signal of main temperature detection device and flowmeter, output regulation signal to electric control valve with
Control the flux of electric control valve.
By using above-mentioned technical proposal, main temperature detection device detects the temperature for being passed through flue gas, by temperature detection signal
Corresponding temperature detection signal is converted into control unit, spray required for control unit converts according to temperature detection signal
Water flow；Meanwhile flowmeter can be compared into control unit with required spray water flow Output estimation signal in real time
Compared with the numerical signal after comparing feeds back to electric control valve to adjust the aperture of electric control valve, to adjust the water flow of spray
Amount achievees the purpose that the temperature for controlling flue gas cool-down according to the temperature of real-time detection to reach desulfurization requirement；Simultaneously because
Control water yield, the water balance of survivable desulphurization system.
Further, the spray equipment includes at least one set of main jet shower pipe for connecting and being located at flue sidewall in flue
Group and at least one set of secondary spray tube group, main jet shower pipe group and secondary spray tube group are set gradually along flue gas direction of transfer；
The main jet shower pipe group includes the main jet shower pipe that several one end are connected to water inlet pipe, is provided in main jet shower pipe towards cigarette
The nozzle of gas approach axis；
The pair spray tube group includes the secondary spray tube that several one end are connected to water inlet pipe, is provided on secondary spray tube towards cigarette
The nozzle of gas direction of transfer.
By using above-mentioned technical proposal, spray equipment is arranged to main jet shower pipe group and secondary spray tube group, main jet shower pipe group
The purpose mainly to cool down is played, it is opposite with the direction of transfer of flue gas since its nozzle is towards flue gas direction of transfer, it can reducing smoke
Transmission speed, extend flue gas and shower water time of contact, flue gas cool-down can be made quicker；Secondary spray tube group mainly plays benefit
The effect of cooling is filled, nozzle direction is identical as flue gas direction of transfer, the transmission direction phase of the directional velocity and flue gas of shower water
Together, the time of contact of flue gas and shower water can be extended, flue gas cool-down can be made quicker, meanwhile, shower water is in the form of power-assisted
The flowing for accelerating flue gas, improves the flowing velocity of flue gas；The cooperation of main jet shower pipe group and secondary spray tube group can make under flue-gas temperature
That drops is more quick, while improving the flowing velocity of flue gas as far as possible.
Further, the side of the main jet shower pipe towards secondary spray tube, which is equipped with, flows fin, the stream fin inclination
Setting.
By using above-mentioned technical proposal, stream fin one can play the purpose flowed, while can also play drying
The purpose of gas, stream fin are obliquely installed, when the flue gas after main jet shower pipe spray continues to pass towards secondary spray tube direction
When sending, fin contacts first and are flowed, the hydrone in flue gas, which can be partly condensed, to flow on fin, and before flue gas can continue
Into having benifit for subsequent secondary spraying and desulfurization process so that the humidity of the flue gas moved on is smaller.
Further, the caliber of the main jet shower pipe is less than the caliber of secondary spray tube.
Further, the side of secondary spray tube towards the main jet shower pipe is provided with several drying plates, and the drying plate is equal
It is obliquely installed, and the inclined direction of the drying plate of two sides is opposite.
By using above-mentioned technical proposal, drying plate one can play the purpose flowed, so that entering secondary spray tube spray
Flue gas can be uniformly distributed, be conducive to flue gas uniform decrease in temperature；The purpose of dry gas can be also played simultaneously, and drying plate inclination is set
It sets, the hydrone in flue gas can be partly condensed on drying plate, and the smoke moisture led in secondary spray tube is small, enable to pair
The shower water of spray tube is more sufficiently mixed with flue gas, to improve the cooling effect of flue gas.
Further, the nozzle is all made of spiral nozzle.
By using above-mentioned technical proposal, the water mist range that spiral nozzle sprays is larger, more abundant with smoke contacts.
Further, the water inlet pipe is provided with more, and is provided with flowmeter and motorized adjustment on every water inlet pipe
Valve, flowmeter and electric control valve are connect with control unit signal；The main jet shower pipe group and secondary spray tube group are separately connected
In different water inlet pipes.
By using above-mentioned technical proposal, main jet shower pipe group and secondary spray tube group are controlled with different water inlet pipes, more to spray
The mode of the selection of leaching, so that spray model is more diversified.
Further, it is provided between the main jet shower pipe group and secondary spray tube group and is sprayed for detecting by main jet shower pipe group
The secondary temperature-detecting device of flue-gas temperature after leaching, the pair temperature-detecting device are set on flue sidewall, and single with control
First signal connection, for controlling the flux of the electric control valve on water inlet pipe corresponding with secondary spray tube group.
By using above-mentioned technical proposal, secondary spray tube group is controlled by secondary temperature-detecting device, is used in spare form
The underproof flue gas of Temperature Treatment is sprayed again, enables flue gas cool-down more intelligent and accurate.
Further, the position before being located at main temperature detection device on the flue is provided with the uniform disk of air-flow.
By using above-mentioned technical proposal, the accuracy of main temperature detection device detection is improved.
Further, the main temperature sensing device includes multiple temperature sensors, and the temperature sensor is along flue gas
Direction of transfer is arranged on flue, and the temperature sensor is connect with control unit signal.
By using above-mentioned technical proposal, the accuracy of main temperature detection device detection is improved.
Compared with prior art, the invention has the advantages that
1, by the setting of temperature sensor, temperature when flue gas enters can be monitored in real time, compared with the measured value of flowmeter
After relatively, the aperture of electric control valve is controlled, achievees the purpose that the temperature for controlling flue gas cool-down reaches desulfurization requirement, controls simultaneously
Water yield will not destroy the water balance of desulphurization system；
2, the nozzle in main jet shower pipe and secondary spray tube is reversed, and shower water can be made to mix with flue gas more uniform, be improved cigarette
The speed and precision of gas cooling；
3, the setting for flowing fin and drying plate can play the purpose flowed, while can also play drying and be passed through secondary spray tube
The purpose of gas in group；
4, the water yield of the controllable secondary spray tube group of the setting of secondary temperature-detecting device, can cool down to main jet shower pipe halfway cigarette
Gas is cooled down again, improves the cooling effect of flue gas.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the schematic perspective view of main spray tube group and secondary spray tube group, omits nozzle；
Fig. 3 is the planar structure schematic diagram of main spray tube group and secondary spray tube group.
Appended drawing reference: 100, flue；110, main temperature detection device；111, temperature sensor；120, secondary temperature detection dress
It sets；130, the uniform disk of air-flow；131, through-hole；140, CEMS monitors temperature point on-line；200, spray equipment；210, main jet shower pipe
Group；211, main jet shower pipe；212, fin is flowed；220, secondary spray tube group；221, secondary spray tube；222, drying plate；230, nozzle；
300, water inlet pipe；310, electric control valve；320, flowmeter；400, control unit；500, spare water pipe；510, hand-operated valve.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention will be described in detail.
Straight arrows in attached drawing indicate the flow direction of flue gas.
Embodiment one
A kind of flue gas cool-down spray system accurately controlled, referring to Fig.1, including be set in flue 100 spray equipment 200,
The water inlet pipe 300 connecting with spray equipment 200, the general state setting in a vertical shape of flue 100, flue gas are conveyed from the bottom up.
The main temperature detection device 110 for detecting flue gas initial temperature, water inlet pipe 300 are provided in flue 100 at smoke inlet
On the flowmeter 320 for measuring water flow in water inlet pipe 300 and the motorized adjustment for controlling 300 water of water inlet pipe are installed
Valve 310.The spray system further includes control unit 400, main temperature detection device 110 and flowmeter 320 with control unit 400
Input end signal connection, and the output end signal of control unit 400 is connected to electric control valve 310 to control electric control valve
310 aperture.
DCS can be used in control unit 400.DCS is dcs, it is one and is supervised by process control level and process
Control grade composition using communication network as the multi-level computer system of tie, combine computer (Computer), communication
(Communication), the 4C technology such as (CRT) and control (Control) is shown.Main temperature detection device 110 can measure flue gas
Temperature, and the temperature detection signal is converted in temperature detection signal input DCS, needed for being converted to after the analysis of DCS
The spray water flow signal wanted.Likewise, the fluid flow in the water inlet pipe 300 measured is converted to accordingly by flowmeter 320
Flow detecting signal into DCS.After DCS analyzes spray water flow signal and flow detecting signal, output control letter
The aperture of electric control valve 310 number is controlled to electric control valve 31.
It should be noted that in order to improve the accuracy of temperature detection, main temperature sensing device includes multiple temperature sensing
Device 111, temperature sensor 111 are arranged on flue 100 along flue gas direction of transfer, and temperature sensor 111 is and control unit
The connection of 400 signals.In the present embodiment, temperature sensor 111 uses two, exports corresponding temperature detection signal to DCS
In, DCS is converted into corresponding spray water flow signal after handling two temperature detection signals received.DSC is to asking
The processing mode of temperature detection signal may comprise steps of: after DCS receives two-way temperature detection signal, take it average
Value, is converted into corresponding spray water flow signal for its average value；If DCS receives only temperature detection signal all the way therein,
The road Ze Jianggai signal is converted into corresponding spray water flow signal, and that undetected road signal is marked, corresponding
Alarm signal is exported to warning device.Warning device can be the combined aural and visual alarm that 100 side of flue is arranged in, and combined aural and visual alarm is set
There are two setting, two temperature sensors 111 are respectively corresponded, the use state of temperature sensor 111 are known for worker, and carry out
Timely repair.
In addition, being also provided with CEMS on-line monitoring temperature point 140 in the inlet of flue gas, CEMS refers to atmosphere pollution
The gaseous pollutant and particulate matter of source emission carry out concentration and total emission volumn continuously monitors, and information is real-time transmitted to supervisor portion
The device of door.CEMS being capable of on-line measurement SO2 concentration, NOx concentration, CO concentration, particle concentration, oxygen content, temperature and humidity, pressure
With the multinomial gas parameter such as flow velocity.The setting of CEMS on-line monitoring temperature point 140 can equally measure flue-gas temperature, and will be right
The temperature detection signal answered, which is sent in DCS, to be analyzed.The temperature detection letter that CEMS on-line monitoring temperature point 140 detects
Number input signal can be used as the temperature detection signal that two temperature sensors 111 export, DSC obtains being averaged for three
Value, improves the precision of temperature detection.
In addition, be located in order to further increase the accuracy of temperature detection, on flue 100 main temperature detection device 110 it
Preceding position is provided with the uniform disk 130 of air-flow.The uniform disk 130 of air-flow is fixedly connected with 100 side wall of flue, and the uniform disk of air-flow
130 towards the tapered setting in the side of flue gas approach axis, and tilt angle is 60-70 degree.It is uniformly opened on the uniform disk 130 of air-flow
Equipped with several through-holes 131, through-hole 131 is inclined to set, and tilt angle is along the center of the uniform disk 130 of air-flow to side directions
Successively become larger.
Referring to Fig. 2 and Fig. 3, spray equipment 200 includes at least one for connecting and being located at 100 side wall of flue in flue 100
Group main jet shower pipe group 210 and at least one set of secondary spray tube group 220, main jet shower pipe group 210 and secondary spray tube group 220 are passed along flue gas
Direction is sent to set gradually.Main jet shower pipe group 210 includes the main jet shower pipe 211 that several one end are connected to water inlet pipe 300, main jet leaching
The nozzle 230 towards flue gas approach axis is provided on pipe 211.Nozzle 230 uses spiral nozzle, can expand spray face, so that
Shower water can come into full contact with flue gas.
Main jet shower pipe 211 is equipped with towards the side of secondary spray tube group 220 flows fin 212, and stream fin 212 inclination is set
It sets.In the present embodiment, the V-shaped setting in section of fin 212 is flowed, flue gas is sprayed by the nozzle 230 in main jet shower pipe 211
After water-atomization cooling, a large amount of water mist is carried, is then penetrated between two adjacent main jet shower pipes 211, by flowing fin
212 blocking, water mist in flue gas condense drying flowing, reduce the water content in flue gas on fin 212.
Secondary spray tube group 220 includes the secondary spray tube 221 that is connected to water inlet pipe 300 of several one end, on secondary spray tube 221
It is provided with the nozzle 230 towards flue gas direction of transfer, nozzle herein equally uses spiral nozzle.Secondary spray tube 221 and main jet
Shower pipe 211 is staggered, and the caliber of main jet shower pipe 211 is less than the caliber of secondary spray tube 221.It is dry by flowing fin 212
The water mist that flue gas afterwards first passes through the ejection of the nozzle 230 on secondary spray tube 221 cools down again, direction and cigarette due to nozzle 230
Gas direction of transfer is identical, so the directional velocity of shower water is identical as the transmission direction of flue gas, can extend flue gas and shower water
Time of contact can make flue gas cool-down quicker, meanwhile, shower water accelerates the flowing of flue gas in the form of power-assisted, improves flue gas
Flowing velocity.
In addition, the side of secondary spray tube 221 towards main jet shower pipe 211 is provided with several drying plates 222, drying plate 222 is equal
Be obliquely installed, and the drying plate 222 of two sides inclined direction on the contrary, and tilt angle along the center of flue 100 to side side
To successively becoming smaller, to improve the uniformity of flow of flue gas, while flue gas can be dried again.
In the present embodiment, main jet shower pipe 211 and secondary spray tube 221 are all connected in same water inlet pipe 300, are being cooled down
Cheng Zhong, main jet shower pipe 211 and secondary spray tube 221 work at the same time.
Fig. 1 is returned to, spare water pipe 500 is provided with and communicated on water inlet pipe 300, hand-operated valve is installed on spare water pipe 500
510.When water inlet pipe 300 be plugged or water inlet pipe 300 on electric control valve 310 damage when, can temporarily use spare water pipe
500。
The working principle of the present embodiment:
When flue gas is led in flue 100, uniform 130 uniform air flow of disk of air-flow is first passed through, then passes through main temperature detection device 110
Flue-gas temperature is detected, which is delivered in control unit 400 and is analyzed；The flowmeter 320 of water inlet pipe 300
Real-time output flow signal exports fiducial value extremely after being compared temperature detection signal and flow signal to control unit 400
Electric control valve 310 is to control its aperture, so that water yield adjusting, can achieve the purpose that control water yield according to flue-gas temperature.
Flue gas successively pass through the spray of main jet shower pipe 211, the drying for flowing fin 212, the drying of secondary spray tube 221 and drying plate 222,
Cool down after the spray of secondary spray tube 221.
Embodiment two
A kind of flue gas cool-down spray system accurately controlled, referring to Fig.1, water inlet pipe 300 is provided with more, and every water inlet pipe
Be provided with flowmeter 320 and electric control valve 310 on 300, flowmeter 320 and electric control valve 310 with control unit 400
Signal connection；Main jet shower pipe group 210 and secondary spray tube group 220 are connected to different water inlet pipes 300.Main jet shower pipe group 210
The secondary temperature inspection for detecting the flue-gas temperature after the spray of main jet shower pipe group 210 is provided between secondary spray tube group 220
Device 120 is surveyed, secondary temperature-detecting device 120 is set on 100 side wall of flue, and is connect with 400 signal of control unit, for controlling
Make the flux of the electric control valve 310 on water inlet pipe 300 corresponding with secondary spray tube group 220.Secondary temperature-detecting device 120 is same
Using temperature sensor 111.
The working principle of the present embodiment:
When flue gas is led in flue 100, uniform 130 uniform air flow of disk of air-flow is first passed through, then passes through main temperature detection device 110
Flue-gas temperature is detected, which is delivered in control unit 400 and is analyzed；It is connect with main jet shower pipe group 210
Water inlet pipe 300 on the real-time output flow signal of flowmeter 320 to control unit 400, temperature detection signal and flow are believed
After number being compared output fiducial value to the corresponding electric control valve 310 of main jet shower pipe group 210 to control its aperture, to adjust
Water yield.
After flue gas successively flows the drying of fin 212 by the spray of main jet shower pipe 211, by secondary temperature-detecting device 120
Detect flue-gas temperature, when its temperature does not reach desulfurization temperature, start the secondary corresponding electric control valve 310 of spray tube 221 into
Row spray, sprays flue gas, the flue-gas temperature needed again.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. the flue gas cool-down spray system that accurately controls of one kind, including be set in flue (100) spray equipment (200), with
The water inlet pipe (300) of spray equipment (200) connection, which is characterized in that further include the main temperature detection being set in flue (100)
Device (110), the flowmeter (320) being set on water inlet pipe (300) and electric control valve (310), input end signal are connected to
The control unit (400) of main temperature detection device (110) and flowmeter (320), the output end signal of described control unit (400)
It is connected to electric control valve (310)；
Control unit (400) receives and processes the signal of main temperature detection device (110) and flowmeter (320), and output adjusts letter
The flux of electric control valve (310) number is controlled to electric control valve (310).
2. the flue gas cool-down spray system according to claim 1 accurately controlled, which is characterized in that the spray equipment
It (200) include that at least one set of main jet shower pipe group (210) in flue (100) and at least is connect and be located at flue (100) side wall
One group of pair spray tube group (220), main jet shower pipe group (210) and secondary spray tube group (220) set gradually along flue gas direction of transfer；
The main jet shower pipe group (210) includes the main jet shower pipe (211) that several one end are connected to water inlet pipe (300), main jet leaching
The nozzle (230) towards flue gas approach axis is provided on pipe (211)；
The pair spray tube group (220) includes the secondary spray tube (221) that several one end are connected to water inlet pipe (300), pair spray
The nozzle (230) towards flue gas direction of transfer is provided on pipe (221).
3. the flue gas cool-down spray system according to claim 2 accurately controlled, which is characterized in that the main jet shower pipe
(211) it is equipped with towards the side of secondary spray tube (221) and flows fin (212), stream fin (212) is obliquely installed.
4. the flue gas cool-down spray system according to claim 2 accurately controlled, which is characterized in that the main jet shower pipe
(211) caliber is less than the caliber of secondary spray tube (221).
5. according to the flue gas cool-down spray system accurately controlled any in claim 2-4, which is characterized in that the pair
The side of spray tube (221) towards main jet shower pipe (211) is provided with several drying plates (222), and the drying plate (222) tilts
Setting, and the inclined direction of the drying plate (222) of two sides is opposite.
6. the flue gas cool-down spray system according to claim 2 accurately controlled, which is characterized in that the nozzle (230)
It is all made of spiral nozzle (230).
7. the flue gas cool-down spray system according to claim 2 accurately controlled, which is characterized in that the water inlet pipe
(300) more are provided with, and is provided with flowmeter (320) and electric control valve (310), flow on every water inlet pipe (300)
Meter (320) and electric control valve (310) are connect with control unit (400) signal；The main jet shower pipe group (210) and secondary spray
Pipe group (220) is connected to different water inlet pipes (300).
8. the flue gas cool-down spray system according to claim 7 accurately controlled, which is characterized in that the main jet shower pipe group
(210) it is provided between secondary spray tube group (220) for detecting the flue-gas temperature after main jet shower pipe group (210) spray
Secondary temperature-detecting device (120), the pair temperature-detecting device (120) is set on flue (100) side wall, and and control unit
(400) signal connects, for controlling the electric control valve (310) on water inlet pipe (300) corresponding with secondary spray tube group (220)
Flux.
9. the flue gas cool-down spray system accurately controlled according to any one of claim 2, which is characterized in that described
Position before being located at main temperature detection device (110) on flue (100) is provided with the uniform disk of air-flow (130).
10. the flue gas cool-down spray system according to claim 1 accurately controlled, which is characterized in that the main temperature passes
Induction device includes multiple temperature sensors (111), and the temperature sensor (111) is arranged along flue gas direction of transfer in flue
(100) on, the temperature sensor (111) is connect with control unit (400) signal.
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| CN201811411277.8A CN109351157B (en) | 2018-11-24 | 2018-11-24 | Flue gas cooling spraying system of accurate control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811411277.8A CN109351157B (en) | 2018-11-24 | 2018-11-24 | Flue gas cooling spraying system of accurate control |
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| CN109351157B CN109351157B (en) | 2024-10-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111437694A (en) * | 2020-04-10 | 2020-07-24 | 上海蓝滨石化设备有限责任公司 | A marine flue gas desulfurization equipment |
| CN112337289A (en) * | 2020-09-30 | 2021-02-09 | 湖北宜化松滋肥业有限公司 | Tail gas treatment device and method for preparing acid by sulfur |
| CN116764413A (en) * | 2023-06-07 | 2023-09-19 | 哈尔滨工程大学 | An exhaust pollutant scrubber based on coupling technology |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101125279A (en) * | 2007-06-20 | 2008-02-20 | 邓生毛 | Flue-gas desulfurizing engineering high-temperature flue-gas controlling system and controlling method thereof |
| CN101161332A (en) * | 2007-06-26 | 2008-04-16 | 北京博奇电力科技有限公司 | A spray tower for flue gas desulfurization and its running method |
| CN203764128U (en) * | 2014-04-17 | 2014-08-13 | 大唐陕西发电有限公司 | Spraying system for flue gas desulfurization accidents |
| CN209612606U (en) * | 2018-11-24 | 2019-11-12 | 浙江德创环保科技股份有限公司 | A Precisely Controlled Flue Gas Cooling Sprinkler System |
-
2018
- 2018-11-24 CN CN201811411277.8A patent/CN109351157B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101125279A (en) * | 2007-06-20 | 2008-02-20 | 邓生毛 | Flue-gas desulfurizing engineering high-temperature flue-gas controlling system and controlling method thereof |
| CN101161332A (en) * | 2007-06-26 | 2008-04-16 | 北京博奇电力科技有限公司 | A spray tower for flue gas desulfurization and its running method |
| CN203764128U (en) * | 2014-04-17 | 2014-08-13 | 大唐陕西发电有限公司 | Spraying system for flue gas desulfurization accidents |
| CN209612606U (en) * | 2018-11-24 | 2019-11-12 | 浙江德创环保科技股份有限公司 | A Precisely Controlled Flue Gas Cooling Sprinkler System |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111437694A (en) * | 2020-04-10 | 2020-07-24 | 上海蓝滨石化设备有限责任公司 | A marine flue gas desulfurization equipment |
| CN112337289A (en) * | 2020-09-30 | 2021-02-09 | 湖北宜化松滋肥业有限公司 | Tail gas treatment device and method for preparing acid by sulfur |
| CN116764413A (en) * | 2023-06-07 | 2023-09-19 | 哈尔滨工程大学 | An exhaust pollutant scrubber based on coupling technology |
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| CN109351157B (en) | 2024-10-01 |
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