CN209576005U - Supersonic speed fume-dehydrating degranulation object separator - Google Patents
Supersonic speed fume-dehydrating degranulation object separator Download PDFInfo
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- CN209576005U CN209576005U CN201920023441.1U CN201920023441U CN209576005U CN 209576005 U CN209576005 U CN 209576005U CN 201920023441 U CN201920023441 U CN 201920023441U CN 209576005 U CN209576005 U CN 209576005U
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Abstract
The utility model provides supersonic speed fume-dehydrating degranulation object separator, including forward type cyclone, supersonic nozzle, postposition cyclone, separator and diffuser；Forward type cyclone, supersonic nozzle, postposition cyclone are sequentially connected；The forward type cyclone other end is connected with inlet tube, and the inlet tube other end is equipped with smoke inlet；The postposition cyclone other end is connected with straight tube, and the straight tube other end is connect with separator and diffuser.Supersonic speed fume-dehydrating degranulation object separator described in the utility model, realization disposably separate vaporous water, liquid water and particulate matter from flue gas, solve environmental issue；And it takes up little area, small investment, there is self-cleaning function, it can be achieved that multitube parallel is run, realization has good separating effect, high reliablity, long service life under different smoke discharge amounts.
Description
Technical field
The utility model belongs to flue gases purification field, separates and fills more particularly, to supersonic speed fume-dehydrating degranulation object
It sets.
Background technique
Flue gas after the wet desulphurization of most domestic coal-burning power plant is usually supersaturated wet flue gas, is contained in flue gas
It is the main of haze formation containing more dissolubility salt, SO3, gel dust, micronic dust etc. in water vapour outside a large amount of water vapours
One of inducement.
China's fire coal boiler fume wet desulphurization discharges about 4,000,000,000 tons of steam, primary pollution discharge 2,520,000 to atmosphere every year
The particulate matter of ton.High-humidity gas fume discharge not only causes a large amount of water resource waste, and since exhaust gas temperature is too low, the water in flue gas steams
Gas can condense into wet plume, cause to atmosphere be not only vision and also be substantial pollution.
Wet flue gas temperature is in 50~55 DEG C after desulfurization, and saturation wet flue gas water content is in 100g/m3~150 g/m3, lead to
About more than 200 tons of water, the particulate matter that particulate matter is discharged after multistage dedusting is discharged to air in boiler 1 hour of normal 1 600mw
Measure about 40000g/h.
Currently used fume-dehydrating technical method is concluded are as follows: flue gas technology, flue gas condensing technology, flue gas first condense
The combination technique of thermal technology and various methods again.
Flue gas heating type: under conditions of wet flue gas saturation water capacity is constant, by indirect heat exchange mode by flue-gas temperature
It is increased to, then the relative humidity of flue gas is just reduced to 20% or so from 100%, becomes dry flue gas discharge.
Disadvantage:
1. hot end is flue gas before desulfurization, temperature is reduced after exchanging heat, and acid mist is caused to condense, and corrodes equipment.
2. cold end is gas after desulfurization, temperature is increased after exchanging heat, the solubility with temperature of calcium hydroxide in lime stone-gypsum
It increases and reduces, the calcium hydroxide solid of precipitation causes pipeline blockage.
3. cost is high, volume is big.
4. because heat exchange area is constant, it is difficult to cope with boiler load variation.
5. not deviating from moisture substantially, also without being detached from particulate matter.
Flue gas condensing type: 65 DEG C or so of wet flue gas deep condensation is cooling close to average atmospheric temperature, make wet flue gas
Saturation water capacity is reduced to 35g/Nm3Hereinafter, close with atmosphere water capacity.It then, substantially can be with again by heating appropriate
It is white to realize that dehumidifying takes off.
Disadvantage:
1. spray-water temperature is higher, influenced by environmental temperature.
2. there are entrainments for treated flue gas, it is still within hypersaturated state.
3. cooling tower water consumption is big, and generates with waste water.
4. chimney takes off white to a certain degree, but cooling tower white cigarette is billowing.
Currently, Fig. 5 is shown in common fume-dehydrating technical method conclusion.
Degranulation owner's Flow Technique has: bundled tube dedusting technology and wet cottrell.
Bundled tube dedusting technology: flue gas generates high speed centrifugation movement, in the effect of centrifugal force by eddy flow molecular separator
Under, droplet and dirt are moved to cylinder wall surface, are mutually collided during the motion, are condensed into biggish drop, drop is thrown to cylinder
Internal wall surface is buried in oblivion after contacting with the liquid film layer of wall surface attachment, realizes the removing of droplet and dirt.
The basic principle of electric precipitator is using the dust in electric power trapping flue gas, mainly includes that following four is mutually related
Physical process: (1) ionization of gas.(2) dust is charged.(3) Charged is to electrode movement.(4) Charged is caught
Collection.
The trapping process of Charged: it is differed on biggish metal anode and cathode in two radius of curvature, passes through high pressure
Direct current, maintains an electric field for being enough to make gas ionization, generated electronics after gas ionization: anion and cation are inhaled
It is attached on the dust by electric field, dust is made to obtain charge.The different dust of charged polarity under the action of electric field force, respectively to
The electrode movement of opposed polarity, deposition on the electrode, and achieve the purpose that dust and gas separation.
Disadvantage:
1. a part of big drop and bulky grain dust can only be removed, vaporous water and little particle dust not can be removed.
2. power consumption is big, cost is high.
3. water consumption is big when equipment is run.
The above technology is the extension or superposition of traditional technology, only solves subproblem.Or it is palliative, or the big effect of investment
Fruit is not significant.Its result leads to big system complex, land occupation, cost height, operation difficulty increasing, high failure rate, integrated operation cost
Increase.In addition, for micron order fine particle, removal effect is bad.
Ultrasonic dehydration technology is the multi-crossed disciplines such as aeronautical technology, environmental protection technology, Chemical Engineering Technology in the complete of separation field
U.S. application.
1. ultrasonic dehydration technology, which is that by from flue gas, disposably separates vaporous water, liquid water (drop) and
The state-of-the-art technology of grain object.
2. ultrasonic dehydration technology can realize that multitube parallel is run, each pipeline has independent valve to control, by adjusting
The valve opening and closing of corresponding number matches upstream boiler and denitration desulphurization plant operating load, to realize in different flue gas emissions
Can there be good separating effect under amount.
Furthermore supersonic speed flue gas low-temperature supersonic speed eddy flow processing technique also has the advantage that
1. having self-cleaning function.Solve the problems, such as that equipment is susceptible to plugging, fluid flow velocity in equipment is flue flow velocity
100~200 times.Residence time is extremely short.
2. the technology can remove vaporous water, liquid water, drop and particulate matter, environmental issue is solved.
3. multitube is arranged, flexible operation, it is convenient for on-bne repair.
4. occupied area is small, invest low
Water and particulate matter in wet flue gas can be efficiently separated using low ultrasonic dehydration degranulation object isolation technics, is reached
To the purpose for saving water resource and environmental protection, especially lacking area, thermal power plant is built operation and is possibly realized, and realizes
Depth water-saving and environmental protection power plant.
Summary of the invention
In view of this, the utility model is directed to supersonic speed fume-dehydrating degranulation object separator, with reach can be with
Vaporous water, liquid water (drop) and particulate matter are disposably separated from flue gas, solve environmental issue.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
Supersonic speed fume-dehydrating degranulation object separator, including forward type cyclone, supersonic nozzle, postposition eddy flow
Device, separator and diffuser；The forward type cyclone, supersonic nozzle, postposition cyclone are sequentially connected；The forward type rotation
The stream device other end is connected with inlet tube, and the inlet tube other end is equipped with smoke inlet；The postposition cyclone other end connection
There is straight tube, the straight tube other end is connect with the separator and diffuser.
Further, the supersonic nozzle includes the stable section set gradually, contraction section, throat and expansion segment, described
The arrival end of stable section is connect with the forward type cyclone, and the expansion segment outlet end is connect with the postposition cyclone.
Further, the separator is connect with the tube wall of the straight tube, is equipped between the separator and the straight tube
Separator inlet, the separator other end are equipped with separator outlet；The diffuser is equipped at the center of the straight tube to be expanded
Depressor entrance, the diffuser other end are equipped with diffuser exit；The separator and diffuser are expansion structure.
Further, the separator is annular, and the separator is socketed in outside the diffuser.
Further, the inlet tube, forward type cyclone, supersonic nozzle, postposition cyclone, straight tube, separator and
Diffuser is each provided on same central axis.
Further, the forward type cyclone and postposition cyclone are equipped with multiple groups blade, and the blade is axial uniformly to be divided
Cloth, blade are prismatic blade or arc shaped blade, and the vane thickness is 2~5mm；The blade subtended angle α of the arc shaped blade meets 5 °
≤α≤45°。
Further, the length L of the stable section0Meet 500mm≤L0≤750mm；The length L of the stable section0It is straight
Diameter D00.5~1.0 times；
The contraction section inlet diameter D1Meet 250mm≤D1≤750mm；The contraction section inlet area and discharge area
The ratio between be shrinkage ratio, the shrinkage ratio be greater than 5；The angle of throat β of the contraction section1Meet 20 °≤β1≤50°；
The length L of the expansion segment2Meet 1100mm≤L2≤3000mm；The angle of flare β of the expansion segment25 ° of satisfaction≤
β2≤10°。
Further, the cross-sectional width d of the separator3Meet 25mm≤d3≤ 75mm, length L3Meet 600mm≤L3
≤ 1600mm, the angle of flare β of the separator3Meet 15 °≤β3≤40°；The diameter D of the diffuser4Meet 100mm≤D4
≤ 300mm, length L4Meet 1100mm≤L4The angle of flare β of diffuser described in≤3000mm4Meet 5 °≤β4≤25°。
Further, the inlet tube, forward type cyclone, supersonic nozzle, postposition cyclone, separator and diffuser
Wall thickness with straight tube is 5~20mm.
Further, the inlet tube, forward type cyclone, supersonic nozzle, postposition cyclone, separator and diffuser
It is coated with corrosion-resistant finishes with the inner wall of straight tube, the corrosion-resistant finishes is preferably chlorinated polyvinyl chloride paints.
Compared with the existing technology, supersonic speed fume-dehydrating degranulation object separator described in the utility model has following
Advantage:
(1) supersonic speed fume-dehydrating degranulation object separator described in the utility model, by supersonic nozzle by cigarette
Gas speedup is to supersonic condition, under supersonic condition, decompression, cooling while speedup, in the centrifugal force effect that eddy flow generates
Under, it can be realized and disposably separate vaporous water from flue gas, liquid water (drop) and particulate matter, dehydration, degranulation object efficiency
Height solves environmental issue.
(2) supersonic speed fume-dehydrating degranulation object separator described in the utility model collects condensation dehydration, flue gas liter
Temperature, three kinds of functions of wet dust removal are in one.It is can be achieved at the same time on one device by vaporous water, liquid water, particulate matter removing,
Greatly simplify process flow.
(3) supersonic speed fume-dehydrating degranulation object separator described in the utility model, structure is simple, without rotation section
Part, easy to operate, reliable and stable, long service life；It may be arranged inside and outside chimney, be also disposed at vertical net flue, therefore account for
Ground space is small.
(4) supersonic speed fume-dehydrating degranulation object separator described in the utility model, flue gas is in supersonic nozzle
Flow velocity is 100~200 times of flue flow velocity, in addition using a possibility that being vertically arranged, significantly reducing blocking, therefore is had
Certain self-cleaning function.
(5) supersonic speed fume-dehydrating degranulation object separator described in the utility model runs for multitube parallel, passes through
Control to valve on each pipeline, to match the peaking operation of upstream boiler, so that realizing can reach high under different operating conditions
The separating effect of effect.And multitube parallel operation has the ability for switching single or more root devices under on-line/off-line state, to reach
O&M cost has been saved without the effect of shutdown to on-bne repair.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.In
In attached drawing:
Fig. 1 is structural schematic diagram described in the utility model embodiment；
Fig. 2 is the schematic cross-section of the utility model embodiment preposition cyclone and postposition cyclone；
(a) prismatic blade schematic cross-section；
(b) arc shaped blade schematic cross-section；
Fig. 3 is the partial schematic diagram of the utility model embodiment supersonic nozzle；
Fig. 4 is the partial schematic diagram of the utility model embodiment separator inlet and diffuser inlet；
Fig. 5 is that currently used fume-dehydrating technical method concludes figure.
Description of symbols:
1- inlet tube；1001- smoke inlet；2- forward type cyclone；3- supersonic nozzle；3001- stable section；3002-
Contraction section；3003- throat；3004- expansion segment；4- postposition cyclone；5- separator；5001- separator inlet；5002- separation
Device outlet；6- diffuser；The diffuser inlet 6001-；6002- diffuser exit；7- straight tube.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more of the features.It is in the description of the present invention, unless another
It is described, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State the concrete meaning of term in the present invention.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
Supersonic speed fume-dehydrating degranulation object separator as shown in Figure 1, including forward type cyclone 2, supersonic nozzle
3, postposition cyclone 4, separator 5 and diffuser 6；The forward type cyclone 2, supersonic nozzle 3, postposition cyclone 4 are successively
Connection；2 other end of forward type cyclone is connected with inlet tube 1, and 1 other end of inlet tube is equipped with smoke inlet 1001；
4 other end of postposition cyclone is connected with straight tube 7, and 7 other end of straight tube is connect with the separator 5 and diffuser 6.It is super
Velocity of sound fume-dehydrating degranulation object separator this body structure is simple, no-rotary part, easy to operate, reliable and stable, uses the longevity
Life length.
Wherein, the supersonic nozzle 3 includes the stable section 3001 set gradually, contraction section 3002, throat 3003 and expands
Section 3004 is opened, the arrival end of the stable section 3001 is connect with the forward type cyclone 2,3004 outlet end of expansion segment
It is connect with the postposition cyclone 4.
Wherein, the separator 5 is connect with the tube wall of the straight tube 7, is equipped between the separator 5 and the straight tube 7
Separator inlet 5001,5 other end of separator are equipped with separator outlet 5002；The diffuser 6 is in the straight tube 7
Diffuser inlet 6001 is equipped at the heart, 6 other end of diffuser is equipped with diffuser exit 6002；The separator 5 and diffusion
Device 6 is expansion structure.
Wherein, the separator 5 is annular, and the separator 5 is socketed in outside the diffuser 6.
Wherein, the inlet tube 1, forward type cyclone 2, supersonic nozzle 3, postposition cyclone 4, straight tube 7, separator 5
It is each provided on same central axis with diffuser 6.
Wherein, the forward type cyclone 2 and postposition cyclone 4 are equipped with multiple groups blade as shown in Figure 2, and the blade is axial
It is uniformly distributed, blade is prismatic blade or arc shaped blade, and the vane thickness is 2~5mm；The blade subtended angle α of the arc shaped blade
Meet 5 °≤α≤45 °.Certain blade arc subtended angle can guarantee air-flow steady flow when entering supersonic nozzle 3, still
Excessive subtended angle will lead to that runner is too long and cause unnecessary friction loss, so the blade subtended angle α of arc shaped blade meets 5 °
≤α≤45°。
Wherein, the length L of the stable section 3001 as shown in Figure 30Meet 500mm≤L0≤750mm；The stable section
3001 length L0For diameter D00.5~1.0 times；
The 3002 inlet diameter D of contraction section1Meet 250mm≤D1≤750mm；3002 inlet area of contraction section with
The ratio between discharge area is shrinkage ratio, and the shrinkage ratio is greater than 5；The angle of throat β of the contraction section 30021Meet 20 °≤β1≤50°；
The length L of the expansion segment 30042Meet 1100mm≤L2≤3000mm；The angle of flare β of the expansion segment 30042
Meet 5 °≤β2≤10°。
It is greater than 5 contraction section 3002, the length L of stable section 3001 for shrinkage ratio0For diameter D00.5~1.0 times, surely
Loss station total losses small part caused by length in section 3001 is determined, so stable section 3001 can be made longer, to improve
Nozzle entry air-flow；Contraction section 3002 is unsuitable too long, will cause increased costs, and energy loss increases；And contraction section 3002
Shrinkage ratio, the uniformity and reduction turbulence level to nozzle exit air-flow are beneficial, increase shrinkage ratio and advantageously reduce energy loss,
Therefore in enabled condition, increase shrinkage ratio and angle of throat β1, it is beneficial to reduce 3002 length of contraction section；Expansion segment
3003 need to guarantee Mach number uniform in the Mach number of outlet, and reaching design.
Wherein, the cross-sectional width d of the separator 5 as shown in Figure 43Meet 25mm≤d3≤ 75mm, length L3Meet
600mm≤L3≤ 1600mm, the angle of flare β of the separator 53Meet 15 °≤β3≤ 40°；The diameter D of the diffuser 64It is full
Sufficient 100mm≤D4≤ 300mm, length L4Meet 1100mm≤L4The angle of flare β of diffuser 6 described in≤3000mm4Meet 5 °≤β4
≤25°.As the cross-sectional width d of separator 53Due to edge effect when too small, it is easy to increase gas temperature suddenly, it is possible to
It mixes established drop volatilization with dry gas again, reduces separative efficiency；The cross-sectional width d of separator 53Can then it increase when excessive
Big burned gas ratio reduces unit capacity, so selecting 25mm≤d3≤75mm；Angle of flare β3And β4Selection weaken air-flow normal shock
The intensity of wave reduces energy loss, and accelerates pressure recovery process, shortens device length.
Wherein, the inlet tube 1, forward type cyclone 2, supersonic nozzle 3, postposition cyclone 4, separator 5 and diffusion
The wall thickness of device 6 and straight tube 7 is 5~20mm.
Wherein, the inlet tube 1, forward type cyclone 2, supersonic nozzle 3, postposition cyclone 4, separator 5 and diffusion
The inner wall of device 6 and straight tube 7 is coated with corrosion-resistant finishes, and the corrosion-resistant finishes is preferably chlorinated polyvinyl chloride paints.
The technical principle of the utility model: flue gas enter supersonic speed fume-dehydrating degranulation object separator generate tangentially and
Constant entropy expansion occurs for axial acceleration, and speedup is to supersonic condition in supersonic nozzle 3, up to 1.2~2.2 Mach；Super
Under transonic condition, decompression, cooling while flue gas speedup, great variety occurs for density therewith.
Due to containing more particulate matter and drop in flue gas, condensation nuclei is provided for gaseous state water condensation, with temperature
Reduction, gaseous state water condensation is simultaneously coated on the core of particulate matter and drop, and droplet constantly grows into big drop, coats of water
Grain object increases into drop, " is got rid of " under the action of tangential velocity and centrifugal force onto tube wall, the separator 5 of brilliant special designing
Outlet discharge；Play the role of dehydration and degranulation object.
Dehydration, degranulation object after-purification flue gas through diffuser 6 slow down, boosting, heating after so that before supersonic nozzle 3
The pressure and temperature of section loss obtains part recovery, is discharged from diffuser exit 6002, arranges after reaching conventional flow velocity into flue
It puts.
Smoke components: the flue gas after desulfurization is usually supersaturated wet flue gas, is contained outside a large amount of water vapour in flue gas, water steams
Contain more dissolubility salt, SO in vapour3, gel dust, micronic dust etc..
Position: may be arranged inside and outside chimney, be also disposed at vertical net flue, therefore space occupied is small.
The method of operation: it is run for multitube parallel, by the control to valve on each pipeline, to match the peak regulation of upstream boiler
Operation, so that efficient separating effect can be reached under different operating conditions by realizing.
Multitube parallel operation has the ability for switching single or more root devices under on-line/off-line state, to reach online inspection
It repairs, without the effect of shutdown, has saved O&M cost.
The design specification of the utility model:
Embodiment calculation specifications:
For mono- unit of 600MW:
| Basic condition | Result estimate after operation |
| Wet flue gas flow takes 2000000m3/h | De-water ratio takes 45% |
| Flue-gas temperature takes 45-50 DEG C | Hour dehydrating amount: 108T |
| Aqueous measurement 120g/m in flue gas3 | Year dehydrating amount: 540000T |
| Particle concentration takes 10mg/m3 | Hour row's particulate matter removing amount: 16kg |
| Runing time takes 5000 hours/year | Year arranges particulate matter removing amount: 80T |
Specific embodiment of the present utility model: when in use, the flue gas by wet desulphurization enters smoke inlet 1001,
After inlet tube 1 under the action of forward type cyclone 2, wet flue gas will generate radial velocity, by flue gas particulate matter and
Liquid water is thrown at wall surface, realize flue gas and drop and solid particulate matter initial gross separation (saturated flue gas in tube hub, liquid water and
Particulate matter is in wall surface).
Hereafter the saturated flue gas in eddy flow forward travel state enters supersonic nozzle 3, as 3002 supersonic speed of contraction section is sprayed
3 diameter of pipe reduces, and gradually expands in the diameter for entering 3004 supersonic nozzle 3 of expansion segment after throat 3002, according to angular motion
It measures conservation wet flue gas and velocity of sound is reached by subsonic speed in contraction section 3002, then reach supersonic condition in expansion segment 3004.It crosses herein
It can reduce in flue gas in journey, kinetic energy increases, and the temperature and pressure of flue gas reduces, and speed increases, and final acquisition low temperature is low
The supersonic airstream of pressure forms the environment for being conducive to vaporous water Spontaneous Condensation, under low temperature and lower pressure in wet flue gas
Vapor starts to condense, due to, containing more particulate matter and drop, providing condensation nuclei in flue gas for gaseous state water condensation, with
The reduction of temperature, gaseous state water condensation are simultaneously coated on the core of particulate matter and drop, and the particulate matter for coating water increases into drop, drop
Also collision capture can be carried out to particulate matter, the concentrations such as drop, particulate matter confluence quality increases after multiple impacts, reaches to liquid core
Just the process that vaporous water is converted into liquid water that accelerates as big drop is mushroomed out when critical dimension.
By rear-mounted cyclone 4, so that the centrifugal acceleration of gas-solid-liquid is strengthened.The strong Swirl Condition in jet pipe
Under, due to huge of poor quality between gas-liquid two, the density of liquid water and tiny particles content is big, suffered by centrifugal force also compared with
Greatly.Under the action of biggish centrifugal force, the big drop of quality and tiny particles content are easier on " being got rid of " wall surface, form one layer
Moisture film；Moisture film advances near wall, along wall surface by separator inlet 5001, into separator 5.And gone out by separator
Mouth 5002 is completed after being dehydrated the function of degranulation object, into next stage equipment.By the dry flue gas that eddy flow is dehydrated, pass through straight tube 7
Diffuser inlet 6001 at center, under the action of diffuser 6, the gas velocity in diffuser 6 is gradually reduced, and temperature is gradually
It increases, pressure is gradually gone up to the 80%~85% of inlet pressure.Treated dry flue gas passes through diffuser exit 6002, into
Enter next stage equipment, completes gas-liquid separation process, the treatment quantity of each supersonic speed fume-dehydrating degranulation object separator
It can reach 200000m3/h。
Supersonic speed fume-dehydrating degranulation object separator, realization disposably separate vaporous water, liquid water (liquid from flue gas
Drop) and particulate matter, environmental issue is solved, and can realize that multitube parallel is run, each pipeline has independent valve to control, and passes through
The valve opening and closing of corresponding number is adjusted to match upstream boiler and denitration desulphurization plant operating load, to realize in different flue gases
Can there be good separating effect under discharge amount.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (10)
1. supersonic speed fume-dehydrating degranulation object separator, it is characterised in that: sprayed including forward type cyclone (2), supersonic speed
Manage (3), postposition cyclone (4), separator (5) and diffuser (6)；The forward type cyclone (2), supersonic nozzle (3), after
Cyclone (4) is set to be sequentially connected；Forward type cyclone (2) other end is connected with inlet tube (1), and the inlet tube (1) is another
One end is equipped with smoke inlet (1001)；Postposition cyclone (4) other end is connected with straight tube (7), straight tube (7) other end
It is connect with the separator (5) and diffuser (6).
2. supersonic speed fume-dehydrating degranulation object separator according to claim 1, it is characterised in that: the supersonic speed
Jet pipe (3) includes the stable section (3001) set gradually, contraction section (3002), throat (3003) and expansion segment (3004), described
The arrival end of stable section (3001) is connect with the forward type cyclone (2), expansion segment (3004) outlet end and it is described after
Set cyclone (4) connection.
3. supersonic speed fume-dehydrating degranulation object separator according to claim 1, it is characterised in that: the separator
(5) it is connect with the tube wall of the straight tube (7), separator inlet is equipped between the separator (5) and the straight tube (7)
(5001), separator (5) other end is equipped with separator outlet (5002)；The diffuser (6) is in the straight tube (7)
Diffuser inlet (6001) are equipped at the heart, diffuser (6) other end is equipped with diffuser exit (6002)；The separator
(5) and diffuser (6) is expansion structure.
4. supersonic speed fume-dehydrating degranulation object separator according to claim 3, it is characterised in that: the separator
It (5) is annular, it is external that the separator (5) is socketed in the diffuser (6).
5. supersonic speed fume-dehydrating degranulation object separator according to claim 1, it is characterised in that: the inlet tube
(1), forward type cyclone (2), supersonic nozzle (3), postposition cyclone (4), straight tube (7), separator (5) and diffuser (6)
It is each provided on same central axis.
6. supersonic speed fume-dehydrating degranulation object separator according to claim 1, it is characterised in that: the forward type
Cyclone (2) and postposition cyclone (4) are equipped with multiple groups blade, and the blade is axially uniformly distributed, and blade is prismatic blade or arc
Blade, the vane thickness are 2~5mm；The blade subtended angle α of the arc shaped blade meets 5 °≤α≤45 °.
7. supersonic speed fume-dehydrating degranulation object separator according to claim 2, it is characterised in that: the stable section
(3001) length L0Meet 500mm≤L0≤750mm；The length L of the stable section (3001)0For diameter D00.5~1.0
Times；
Contraction section (3002) the inlet diameter D1Meet 250mm≤D1≤750mm；Contraction section (3002) inlet area with
The ratio between discharge area is shrinkage ratio, and the shrinkage ratio is greater than 5；The angle of throat β of the contraction section (3002)1Meet 20 °≤β1≤
50°；
The length L of the expansion segment (3004)2Meet 1100mm≤L2≤3000mm；The angle of flare β of the expansion segment (3004)2
Meet 5 °≤β2≤10°。
8. supersonic speed fume-dehydrating degranulation object separator according to claim 4, it is characterised in that: the separator
(5) cross-sectional width d3Meet 25mm≤d3≤ 75mm, length L3Meet 600mm≤L3≤ 1600mm, the separator (5)
Angle of flare β3Meet 15 °≤β3≤40°；The diameter D of the diffuser (6)4Meet 100mm≤D4≤ 300mm, length L4Meet
1100mm≤L4The angle of flare β of diffuser described in≤3000mm (6)4Meet 5 °≤β4≤25°。
9. supersonic speed fume-dehydrating degranulation object separator according to claim 1, it is characterised in that: the inlet tube
(1), forward type cyclone (2), supersonic nozzle (3), postposition cyclone (4), separator (5) and diffuser (6) and straight tube (7)
Wall thickness be 5~20mm.
10. supersonic speed fume-dehydrating degranulation object separator according to claim 1, it is characterised in that: the entrance
Manage (1), forward type cyclone (2), supersonic nozzle (3), postposition cyclone (4), separator (5) and diffuser (6) and straight tube
(7) inner wall is coated with corrosion-resistant finishes.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109513270A (en) * | 2019-01-08 | 2019-03-26 | 锦益创典(天津)科技有限责任公司 | Supersonic speed fume-dehydrating degranulation object separator |
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