CN201752631U - Fume gas power type wet desulphurization ultrasonic atomization device - Google Patents
Fume gas power type wet desulphurization ultrasonic atomization device Download PDFInfo
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- CN201752631U CN201752631U CN2010202607336U CN201020260733U CN201752631U CN 201752631 U CN201752631 U CN 201752631U CN 2010202607336 U CN2010202607336 U CN 2010202607336U CN 201020260733 U CN201020260733 U CN 201020260733U CN 201752631 U CN201752631 U CN 201752631U
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- ultrasonic atomization
- type wet
- atomization device
- wet desulphurization
- exhaust gases
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Abstract
The utility model discloses a fume gas power type wet desulphurization ultrasonic atomization device, which comprises a nozzle body and a resonant cavity, wherein the resonant cavity is arranged at the front end of the nozzle body via a central rod. The device is characterized in that the nozzle body includes a fume gas channel and a slurry channel, the slurry channel is sleeved on the outside of the fume gas channel, and a venture pipe is arranged at an outlet of the fume gas channel. The fume gas power type wet desulphurization ultrasonic atomization device uses fume gas which originally requires desulphurization and is discharged from the tail of a boiler as a medium, not only favors desulphurization of the fume gas medium, but also avoids negative influence such as increase of power consumption of a fan caused by introducing other media to increase fume gas volume of a desulphurization system, and realizes ultrasonic atomization due to the fact that the fume gas achieves ultrasonic speed at the outlet position of the venture pipe, is mixed with slurry at an outlet position of the slurry channel and drives the slurry to be conveyed to the resonant cavity along the central rod to generate ultrasonic waves by resonance so as to realize ultrasonic atomization. In addition, the structure of the device can improve slurry atomization performance, reduce desulphurization cost, and enhance desulphurization efficiency.
Description
Technical field
The present invention is used for thermal power plant wet method fume desulfurizing system spray column spraying, specifically is meant a kind of smoke power-type wet desulphurization ultrasonic atomization device.
Background technology
Along with the development and the extensive use of wet flue gas desulfurization technology, the high-efficient atomizing of desulfurization medium is the focus that people pay close attention to always.Atomizing type commonly used at present has mechanical atomization, medium atomization (steam or air etc.), machinery+medium atomization, effervescent atomization etc., exploring more efficient, more economical, the more suitable atomization technique of exploitation becomes the raising desulfuration efficiency, reduces the important topic of desulphurization cost.Utilizing the ultrasonic technology atomizing is exactly one of them.Since late 1980s, the beginning of the nineties, ultrasonic atomizatio causes people's attention gradually as a novel atomization technique.Result of study shows: the ultrasonic atomization performance generally is better than other type atomizer, its atomizing particle size less (below 100 μ m), and the uniformity of atomized drop is better.Therefore, adopt ultrasonic ultrasonic delay line memory, can improve medium atomization efficient, reduce effects such as cost of investment, Operation and Maintenance cost and energy resource consumption.
Ultrasonic wave atomizing nozzle mainly contains two kinds of forms: electrodynamic type and hydrokinetic type.The electrodynamic type atomizer is to adopt the electric supersonic generator to realize atomizing; The hydrokinetic type atomizer is flowing in the resonant cavity by fluid high-speed and produces ultrasonic wave and atomize.Its principle be liquid in flowing to the process of nozzle, be subjected to the effect of surface tension and stickiness power to form thin film, under hyperacoustic vibration effect, break and be atomized.On the hydrokinetic type nozzle supersonic generator is housed, when high-velocity fluid when nozzle sprays, the cavity vibration that the impulse force of fluid can the excitation ultrasound wave producer produces ultrasonic wave, makes liquid take place to vibrate and be atomized under action of ultrasonic waves.Along with the increase of ultrasonic frequency, atomized drop is more and more thinner, can obtain micron-sized drop under general hyperacoustic vibration frequency effect.The high sound intensity wave frequency is generally 10～14kHz.Because the operating pressure broad of this nozzle, air-flow can obtain higher acoustic pressure under the subsonic speed condition, and the atomizing treating capacity is big, simple in structure, reliable operation, cost are lower, has application promise in clinical practice.
Generally adopt atomizing nozzle at present in the desulfuration spray tower, this type of nozzle atomization effect is relatively poor, need extract the utilization rate of slurry spraying with the raising slurries repeatedly by slurry circulating pump, and the required number of nozzle of desulfurizer is more, so desulphurization cost is than higher.
Summary of the invention
In order to overcome the shortcoming and defect that prior art exists, the purpose of this utility model is to provide a kind of atomization good, the novel smoke power-type wet desulphurization ultrasonic atomization device that desulfuration efficiency is high.
The purpose of this utility model is achieved through the following technical solutions: a kind of smoke power-type wet desulphurization ultrasonic atomization device, comprise nozzle body and resonant cavity, resonant cavity is arranged at the front end of nozzle body by center-pole, described nozzle body comprises exhaust gases passes, slurry channels, described slurry channels is sheathed on the outside of exhaust gases passes, and the outlet of described exhaust gases passes is a Venturi tube.
The outlet of described slurry channels is the taper contraction mouth.
Described slurry channels is provided with slurries joint, flush-through connection, and the axis of described flush-through connection and the axis of slurry channels are 45 degree angles.Angle between described slurries joint, the flush-through connection is 40 degree～50 degree.
Described resonant cavity and center-pole are for being rotationally connected.
One end of described center-pole stretches in the outlet of Venturi tube, fixedlys connected with nozzle body by bracing frame in the middle part of center-pole.
Described nozzle body is the carborundum synthetic material.
The axis of described center-pole and the axis coaxle of exhaust gases passes, described resonant cavity are annular recess.
The internal diameter of described exhaust gases passes is 10mm, the terminal internal diameter of Venturi tube outlet is 5mm, spacing distance between described slurry channels and the exhaust gases passes is 5mm, and the wall thickness of described exhaust gases passes, slurry channels is 2mm, and the total length of described nozzle body is 147.5mm.
Above-mentioned smoke power-type wet desulphurization ultrasonic atomization device can be used in the wet method fume desulfurizing system spray column spraying of thermal power plant.
With respect to prior art, the utlity model has following advantage and beneficial effect:
(1) the utility model smoke power-type wet desulphurization ultrasonic atomization device, the flue gas that utilizes the boiler tail discharge is as medium, it is advantageous that to utilize originally needs the flue gas of desulfurization as medium, not only help the desulfurization of flue gas medium, avoided simultaneously making the desulphurization system exhaust gas volumn increase negative effects such as causing the increase of blower fan power consumption because of introducing other media;
(2) nozzle body of the present utility model comprises exhaust gases passes, slurry channels.This slurry channels is sheathed on the outside of exhaust gases passes, exhaust gases passes adopts Venturi tube, flue gas reaches supersonic speed in the Venturi tube exit, and mix in the slurry channels exit with slurries and drive slurries and be sent to along center-pole that resonance produces ultrasonic wave in the resonant cavity, thereby realization ultrasonic atomization, this structure can be improved the slurry spraying performance, improves desulfuration efficiency;
(3) the utility model slurry channels is provided with slurries joint and flush-through connection, the axis of slurries joint and the axis of slurry channels are 45 degree angles, slurries enter along slurries joint tangential screw formula, can effectively avoid the erosive wear of serous granule to the exhaust gases passes outer wall, the flow dead of avoiding slurries may occur in slurry channels again causes slurries to stop or stops up, connect the introducing flushing water by flushing, can regularly wash, prevent the slurry channels obstruction slurry channels;
(4) inlet in exhaust gases passes, slurry channels is provided with filter screen, can prevent to take place in bulky grain and the foreign matter admission passage passage clogging;
(5) the utility model is simple in structure, working stability, the utility model is applied in the desulphurization system, not only can reduce nozzle quantity is installed, but also can reduce the cycle-index of slurries in desulfuration spray tower, finally can reduce the cost of investment, Operation and Maintenance, desulfurization, and reduce energy resource consumption.The present invention is simple and compact for structure, rationally distributed, with low cost, and is easy to utilize.
Description of drawings
Fig. 1 is the utility model smoke power-type wet desulphurization ultrasonic atomization device structural representation.
Fig. 2 is the side structure schematic diagram of the utility model smoke power-type wet desulphurization ultrasonic atomization device afterbody (exhaust gases passes arrival end).
Fig. 3 is the side structure schematic diagram of nozzle body among Fig. 1 and center-pole, bar shaped bracing frame position relation.
The specific embodiment
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiment of the present utility model is not limited thereto.
Embodiment
As shown in Figure 1, the utility model smoke power-type wet desulphurization ultrasonic atomization device, comprise nozzle body 4 and resonant cavity 7, resonant cavity 7 is arranged at the front end of nozzle body 4 by center-pole 6, described nozzle body 4 comprises exhaust gases passes 9, slurry channels 10, slurries are meant lime stone slurry, this exhaust gases passes 9 and slurry channels 10 are the circular cylindrical tubular structure, slurry channels 10 is sheathed on the outside of exhaust gases passes 9, spacing distance between slurry channels 10 and the exhaust gases passes 9 is approximately 5mm, the outlet of described exhaust gases passes 9 is a Venturi tube 5, adopts Venturi tube 5 can reduce the resistance of flue gas in exhaust gases passes 9, and flue gas is fully expanded reach supersonic speed.The outlet 11 of described slurry channels 10 is the taper contraction mouth, and an end of described center-pole 6 stretches in the outlet of Venturi tube 5, fixedlys connected with nozzle body 4 by bar shaped bracing frame 8 in the middle part of center-pole 6.The internal diameter of described exhaust gases passes 9 is 10mm, and the terminal internal diameter of Venturi tube 5 outlets is approximately 5mm, and the wall thickness of described exhaust gases passes 9, slurry channels 10 is 2mm, and the total length of described nozzle body 4 is approximately 147.5mm.
Fig. 2 is the side structure schematic diagram of the utility model smoke power-type wet desulphurization ultrasonic atomization device afterbody (exhaust gases passes arrival end).The axis of described slurries joint and the axis of slurry channels are 45 degree～50 degree angles, and the angle between described slurries joint, the flush-through connection is 40 degree～50 degree.
Fig. 3 is the side structure schematic diagram of nozzle body 4 and center-pole 6, bar shaped bracing frame 8 positions relation among Fig. 1.
Described slurry channels 10 is provided with slurries joint 12, flush-through connection 13.The axis of the axis of this slurries joint 12 and slurry channels 10 is 45 degree angles and arranges, make the spiral slurry channels 10 that enters of slurries, can effectively avoid particle in the slurries to the outer wall erosive wear of exhaust gases passes 9, the flow dead that can avoid slurries may occur in slurry channels 10 causes slurries to stop or stops up again.Introducing flushing water by flush-through connection 13 can regularly wash slurry channels, prevents passage and channel outlet (nozzle) obstruction.
In order better to reach atomizing effect, described resonant cavity 7 can adopt the mode of rotation to be connected with center-pole 6, and described resonant cavity 7 adopts annular recess.
Inlet in exhaust gases passes 9 and slurry channels 10 can be installed the filter screen (not shown), and filter screen can prevent that bulky grain and foreign matter from entering the obstruction that pipeline causes nozzle body 4 each outlets.
Easily stop up because flue gas and slurries thereof have stronger burn into wearing and tearing and slurries, nozzle body 4 can adopt anticorrosion, anti-wear, anti-blocking, high-intensity special carborundum synthetic material to make.
In order to make center-pole 6 better take into account guide functions, the axis coaxle of the axis of described center-pole 6 and exhaust gases passes 9.
Smoke power-type wet desulphurization ultrasonic atomization device of the present utility model is applied in the wet method fume desulfurizing system spray column spraying of thermal power plant.Boiler tail flue gas is entered in the exhaust gases passes 9 by exhaust gases passes inlet A through high pressure positive blower, and by Venturi tube 5 outlet 5-1 ejections, the pressure of regulating flue gas reaches the required parameter value of technology (flue gas pressures is between 0.3～0.7MPa) then.Slurries enter in the slurry channels 10 by slurries joint 13 through high-pressure pump, then by outlet 11 ejections.Slurries pressure can be regulated (according to production technology, pressure can between 0.2～0.6MPa) by the control valve of external equipment.Flue gas reaches supersonic speed at the outlet 5-1 place of Venturi tube 5, the supersonic speed flue gas mixes at outlet 14 places of nozzle body with slurries and drives slurries, be sent to resonance generation ultrasonic wave in the resonant cavity 7 along center-pole 6, ultrasonic vibration drives slurries and is offset to crest, slurries is torn produced the major diameter particle; Along with particle under hyperacoustic continuous effect, the separated fragmentation of drop produces granule more and arrives good atomizing effect (atomizing particle is generally between 25～45um).
Just can realize the utility model preferably as mentioned above.
The foregoing description is the utility model preferred implementation; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under spiritual essence of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection domain of the present utility model.
Claims (9)
1. smoke power-type wet desulphurization ultrasonic atomization device, comprise nozzle body and resonant cavity, resonant cavity is arranged at the front end of nozzle body by center-pole, it is characterized in that: described nozzle body comprises exhaust gases passes, slurry channels, described slurry channels is sheathed on the outside of exhaust gases passes, and the outlet of described exhaust gases passes is a Venturi tube.
2. smoke power-type wet desulphurization ultrasonic atomization device according to claim 1 is characterized in that: the outlet of described slurry channels is the taper contraction mouth.
3. smoke power-type wet desulphurization ultrasonic atomization device according to claim 1, it is characterized in that: described slurry channels is provided with slurries joint, flush-through connection, the axis of described slurries joint and the axis of slurry channels are 45 degree～50 degree angles, and the angle between described slurries joint, the flush-through connection is 40 degree～50 degree.
4. according to each described smoke power-type wet desulphurization ultrasonic atomization device in the claim 1～3, it is characterized in that: described resonant cavity and center-pole are for being rotationally connected.
5. smoke power-type wet desulphurization ultrasonic atomization device according to claim 4 is characterized in that: an end of described center-pole stretches in the outlet of Venturi tube, fixedlys connected with nozzle body by the bar shaped bracing frame in the middle part of center-pole.
6. smoke power-type wet desulphurization ultrasonic atomization device according to claim 4 is characterized in that: described nozzle body is the carborundum synthetic material.
7. smoke power-type wet desulphurization ultrasonic atomization device according to claim 5 is characterized in that: the axis of described center-pole and the axis coaxle of exhaust gases passes, described resonant cavity are annular recess.
8. smoke power-type wet desulphurization ultrasonic atomization device according to claim 5, it is characterized in that: the internal diameter of described exhaust gases passes is 10mm, the terminal internal diameter of Venturi tube outlet is 5mm, spacing distance between described slurry channels and the exhaust gases passes is 5mm, the wall thickness of described exhaust gases passes, slurry channels is 2mm, and the total length of described nozzle body is 147.5mm.
9. smoke power-type wet desulphurization ultrasonic atomization device according to claim 5 is characterized in that: the inlet of described exhaust gases passes and slurry channels is provided with filter screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010202607336U CN201752631U (en) | 2010-07-15 | 2010-07-15 | Fume gas power type wet desulphurization ultrasonic atomization device |
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| CN2010202607336U CN201752631U (en) | 2010-07-15 | 2010-07-15 | Fume gas power type wet desulphurization ultrasonic atomization device |
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| CN201752631U true CN201752631U (en) | 2011-03-02 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920162A (en) * | 2010-07-15 | 2010-12-22 | 华南理工大学 | Smoke power-type wet desulphurization ultrasonic atomization device and application thereof |
| CN104100239A (en) * | 2014-06-06 | 2014-10-15 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Atomizing device and foam discharging starting atomization water discharging gas recovery method thereof |
| CN106139460A (en) * | 2016-06-21 | 2016-11-23 | 北京航空航天大学 | The heterogeneous blender of aerodynamic force formula ultrasound wave |
| CN107975823A (en) * | 2017-11-17 | 2018-05-01 | 中科合肥微小型燃气轮机研究院有限责任公司 | A kind of ultrasonic nozzle atomising device |
| CN110237691A (en) * | 2019-07-01 | 2019-09-17 | 彭馨 | Two phase flow semidry method deacidifying flue gas device |
| CN111151087A (en) * | 2020-03-16 | 2020-05-15 | 湖南科技大学 | Ultrasonic atomization dry fog door curtain |
| CN111841991A (en) * | 2020-06-23 | 2020-10-30 | 江苏食品药品职业技术学院 | Ultrasonic nozzle atomizing device |
-
2010
- 2010-07-15 CN CN2010202607336U patent/CN201752631U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920162A (en) * | 2010-07-15 | 2010-12-22 | 华南理工大学 | Smoke power-type wet desulphurization ultrasonic atomization device and application thereof |
| CN101920162B (en) * | 2010-07-15 | 2012-08-22 | 华南理工大学 | Smoke power-type wet desulphurization ultrasonic atomization device and application thereof |
| CN104100239A (en) * | 2014-06-06 | 2014-10-15 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Atomizing device and foam discharging starting atomization water discharging gas recovery method thereof |
| CN104100239B (en) * | 2014-06-06 | 2016-08-24 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of atomising device and bubble row thereof start atomization water pumping gas production method |
| CN106139460A (en) * | 2016-06-21 | 2016-11-23 | 北京航空航天大学 | The heterogeneous blender of aerodynamic force formula ultrasound wave |
| CN107975823A (en) * | 2017-11-17 | 2018-05-01 | 中科合肥微小型燃气轮机研究院有限责任公司 | A kind of ultrasonic nozzle atomising device |
| CN110237691A (en) * | 2019-07-01 | 2019-09-17 | 彭馨 | Two phase flow semidry method deacidifying flue gas device |
| CN111151087A (en) * | 2020-03-16 | 2020-05-15 | 湖南科技大学 | Ultrasonic atomization dry fog door curtain |
| CN111841991A (en) * | 2020-06-23 | 2020-10-30 | 江苏食品药品职业技术学院 | Ultrasonic nozzle atomizing device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110302 Termination date: 20130715 |