CN110038395A - A kind of regular wire packing, manufacturing process and high-gravity rotating bed - Google Patents
A kind of regular wire packing, manufacturing process and high-gravity rotating bed Download PDFInfo
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- CN110038395A CN110038395A CN201910285045.0A CN201910285045A CN110038395A CN 110038395 A CN110038395 A CN 110038395A CN 201910285045 A CN201910285045 A CN 201910285045A CN 110038395 A CN110038395 A CN 110038395A
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- 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
- B01D53/14—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 by absorption
- B01D53/1406—Multiple stage absorption
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- 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
- B01D53/14—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 by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
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Abstract
The present invention provides a kind of regular wire packings, manufacturing process and high-gravity rotating bed, regular wire packing, including filler laminate, filler laminate has punching, the upper and lower surface of filler laminate is respectively provided with stopper protrusion and limit recess portion, the stopper protrusion and limit recess portion of the upper and lower surface of adjacent two layers filler laminate cooperate, for limiting the relative displacement between filler laminate.Regular wire packing of the invention is suitable for processing atm number (1700m3—2300m3), high revolving speed (800 turns/min-, 1200 turns/min), big orifice (diameter 800mm, thick 200mm), big spouting liquid (200L/min) it is high-gravity rotating bed, since the stopper protrusion and limit recess portion of the upper and lower surface of adjacent two layers filler laminate cooperate, avoid the deformation of regular wire packing in the revolving bed course of work, gas-liquid is able to quickly sufficiently fusion in this case, mass transfer rate between item to significantly improve air-liquid, has achieved the purpose that rapid acquiring harmful substance in the short time.
Description
Technical field
The present invention relates to environmental protection, chemical technology field, and in particular, to a kind of regular wire packing, manufacturing process and super
Gravity revolving bed.
Background technique
Emergency back-up fuel of the hydrazine -70 as certain model aircraft can give off a large amount of poisonous and harmful high-temperature steams, ammonia after combustion
For gas concentration peak value up to 39%, hydrazine peak concentration reaches 3000ppm, discharge standard of such concentration of emission considerably beyond national regulation
" national standard: ammonia≤4mg/m3About 5ppm；Hydrazine≤0.13mg/m3About 1ppm ".To guarantee site operation personnel and nearby residents from poison
Impairment of qi evil, protects blue sky and white cloud, rapidly and efficiently this large amount of toxic exhaust emissions for the treatment of and purification is imperative.
It is that for the vent gas treatment maximum difficult point of above situation
1. big (the 2000m of emission flow3/ per hour -- 3000m3/ per hour)；
2. concentration of emission height (ammonia 39%；Hydrazine 3000ppm)；
3. drain time is short (only 2min)；
4. device space is small (vehicular, outer dimension are limited to: long 2400mm × wide 1300mm × high 1700mm)；
5. discharge is unobstructed, there cannot be any retardance.(otherwise can cause serious injury to aircraft engine).
There are industry specialists to point out, for this five indices even relaxing any one, this is all completing very well for a task, is closed
Key is that this five indices exactly converges and is together allowed to become being difficult to complete of the task.
Original hydrazine and ammonia are can be dissolved in water (except unsaturation) in any proportion, and traditional processing mode is also by tail gas
Be introduced into spray column, by way of gas-liquid convection with acidic liquid spray in filler surface so as to absorb tail gas in hydrazine and
Ammonia.According to the size of capacity and concentration of emission, under same operating condition, floor treatment station uses diameter about 1m, the spray column of high 9m
It completes such work, and size can arbitrarily expand, handles the time and space is all unrestricted, and vehicle apparatus then needs
Ammonia density is completed in small space drops to≤5ppm by 39%, (concentration declines 78000 times)；Hydrazine concentration is by under 3000ppm
Drop to≤1ppm (concentration decline 3000 times), and require to complete in short 2min, challenge difficulty as one can imagine.
High-gravity rotating bed is the key core component in tail gas treatment device, and can restriction hypergravity equipment play
The key factor of maximum efficiency.
The high-gravity rotating bed carrier as air-liquid exchange, the specific surface area of filler is bigger therebetween, it is meant that air-liquid connects
The area of touching is bigger, and air-liquid exchanges more abundant in relative time；Revolving bed revolving speed is higher, it is meant that hypergravity g is bigger
(centrifugal force), liquid form a film more faster thinner in filler surface, and interface updates faster and gas contact area and also gets over
Greatly, gas --- --- liquid interphase mass transfer is faster, and here it is the key points using high-gravity technology energy high-efficient purification tail gas.
So-called high-gravity technology, core are actually a kind of reinforcing mass transfer technology that difference is alternate, its working principle is that
Centrifugal force --- the hypergravity generated by the high speed rotation of revolving bed, make gas-liquid in a manner of convection current, baffling, cross-flow etc.
Quickly mass transfer exchange inside the revolving bed of bigger serface, thus reach by absorbing liquid rapid acquiring tail gas it is harmful at
Point, cleaning of off-gas.Wherein the revolving speed of rotated bed, the indexs such as the specific surface area of filler, the liquid holdup of rotated bed, exhaust flow are equal in rotated bed
It is an important factor for influencing vent gas treatment effect.For handling the industrial discharge tail gas of atm number, select a kind of relative weight light
The filler of (low energy consumption), large specific surface area (alternate contact area is big) is most important, and widely applied each in the market from
From the point of view of kind of filler, no matter wire packing is from the easy throughput of gas-liquid or alternate effective contact area and weight three
It is all optimal selection from the point of view of index.But also thus bring a problem, that is, wire packing draws under the action of super gravity field
How the problem on deformation risen, solve especially for large scale revolving bed, is always to restrict high-gravity technology in numerous areas
It is engineered the key problem of application.
It is divided with the structure of filler, filler is divided into structured packing and dumped packing two major classes.Structured packing is with certain
Geometry proper alignment is folded to spell, due to its weight even distribution and structural stability and be used for hypergravity rotation
The filler of bed.Its large pore stainless steel wave card filler use is more universal, but since its special construction and weight limit, makes
It must manufacture major diameter (800mm), the rotation of bigger serface (1200--1400) and high revolving speed (800 turns/min--1200 turns/min)
Rotated bed is extremely difficult, update search discovery, no matter structured packing or dumped packing, large scale (rotated bed diameter is more than 800mm)；
The successful case column of the high-gravity rotating bed application of engineering not yet of high revolving speed (more than 800 turns/min).
There are the rotated bed application case column than this diameter big (1300mm), but revolving speed only has 300 turns/min---400 and turns/min, turns
Speed is low to mean liquid into film thickness, and interface updates slowly, and gas-liquid exchange efficiency is low, loses the technical advantage of hypergravity；And
This hypergravity equipment is suitable only for processing super large tolerance (more than 10000m3/ per hour) emission.
Also have it is higher than this revolving speed, revolving speed up to 3000 turns/min or more, but rotated bed diameter can only control 200mm with
Interior, air-flow throughput is small, is not engineered the practical value of application, is suitable only for the use of certain specific areas, and use scope is narrow
It is small.The one kind of stainless steel metal screen waviness packings as structured packing has ratio in the case where equivalent weight same revolving speed
The bigger specific surface area of stainless steel large aperture corrugated plate packing and better liquid discreteness (are formed with 0.3mm thickness corrugated plating
The filler of filler and 0.3mm string diameter composition compares), specific surface area increases 1.5--2 times, (the feelings of same volume equivalent weight
Under condition, the specific surface area of wire packing is 1.5---2 times of corrugated plate packing), it is meant that gas-liquid exchange area increases
1.5--2 times, the efficiency that vent gas treatment absorbs also increases in proportion.But wire packing especially major diameter wire packing bed can be by
In high speed rotation deform and cause it is outer it is tight in the final dynamic balancing of pine it is unbalance, how to find a kind of high speed rotation and indeformable silk screen
Filler becomes us and seeks the key point of technological break-through, surrounds this emphasis, we have carried out relevant engineering application study.
Since relevant impact factor is numerous, and each other, effect causes all to be dynamic variable (specific surface area of filler, revolving speed, spray
Liquid measure, hydrojet pressure award liquid range, gas flow rate, rotated bed diameter, rotated bed thickness, rotated bed effective discharge area etc.), industry does not have
There are mature perfect theoretical system and accurate calculation method.
In view of this, the present invention is specifically proposed.
Summary of the invention
Conventional wire packing is generally by steel wire by braider establishment slabbing, by mold extrusion forming, and it is latter
Piece is a piece of to be overrided to form, and thickness, material and the size in aperture of string diameter directly affect the suppleness and deformation extent of filler, no matter
It using which type of preparation method and what kind of material, string diameter thickness, can all be deformed, deform under the circumference of the high-speed rotation
It is mainly made of two aspect reasons: first is that silk and silk can produce under the influence of centrifugal force because being that longitude and latitude takes volume between silk and silk
Raw relative displacement causes to deform, second is that upper and lower level does not have rigid constraint upper and lower level because inadequate per a piece of filler stiffness after laminating
Mutual dislocation and deform.
First invention purpose of the invention puts forth effort to solve above-mentioned two problems, specifically:
A kind of regular wire packing, including filler laminate, filler laminate have punching, and the upper and lower surface of filler laminate is distinguished
With stopper protrusion and limit recess portion, stopper protrusion and the limit recess portion phase interworking of the upper and lower surface of adjacent two layers filler laminate
It closes, for limiting the relative displacement between filler laminate.
Further, the stopper protrusion of the adjacent surface of adjacent two layers filler laminate and the dislocation of limit recess portion laminate, and lead to
Crossing the opposite extrusion deformation of mould plate extruding adjacent two layers filler laminate makes upper and lower level composition that fine and close, upper and lower level be combined mutually to involve
Organic whole structure；
Preferably, the upper surface of described filler layer plate have ∧ type protrusion and V-type recess portion, lower surface have ∧ type protrusion and
V-type recess portion, the ∧ type protrusion of the adjacent surface of adjacent two layers filler laminate and being laminated in 45° angle dislocation for V-type recess portion；Described
Punching is diamond shape punching；
Preferably, the specific surface area of the regular wire packing is 1200~1400.
The present invention has built different test models simultaneously and has carried out engineering verification, with experiment effect counterevidence theoretical implications, builds
It has stood and emphasis parameter (impact factor: revolving speed, spouting liquid) model, the second invention of the invention is adjusted with the dynamic that result is guiding
Purpose is to provide a kind of wire packing manufacturing process of universality,
A kind of manufacturing process of the regular wire packing, comprising: certain thickness stainless steel plate is made in choosing, is existed by mold
Punching on stainless steel plate, then it is squeezed on mold the stopper protrusion and limit recess portion of certain depth.
Further, comprising: each layer of stopper protrusion of filler laminate and being laminated in 45° angle dislocation for stopper protrusion, often
Free height 3mm~5mm of one layer of filler laminate, adjacent two layers filler laminate by mould plate extruding make to be laminated to 4mm~
8mm, squeezing the opposite extrusion deformation of adjacent two layers filler laminate by mould plate makes upper and lower level constitute combination densification, upper and lower level phase
The organic whole structure mutually involved；
Preferably, the filler laminate uses the stainless steel plate of 0.3mm thickness, passes through die punching 4mm × 4mm diamond shape
Hole, then be squeezed on mold the V-groove of 3mm depth and be made.
Third goal of the invention of the invention is to provide one kind and is suitable for handling atm number (1700m3----2300m3), high turn
Speed (800 turns/min--1200 turns/min), big orifice (diameter 800mm, thick 200mm), big spouting liquid (200L/min), lasting rotation
Turn indeformable wire packing and high-gravity rotating bed.
It is a kind of with the high-gravity rotating bed of the regular wire packing, comprising:
Rotate bed body, built-in regular wire packing；
Hollow hydrojet axis moves its rotation with rotation bed body connecting band；
Multiple spray holes are opened up on the peripheral wall of the hollow hydrojet axis, drive rotation bed body rotation for hollow hydrojet axis
Liquid is awarded to regular wire packing in the process.
Further, the rotation bed body includes the upper cover plate and lower cover plate of ring frame, capping ring frame both ends open,
The hollow hydrojet axis is fixedly connected with upper cover plate, lower cover plate respectively, and upper cover plate and lower cover are located on the hollow hydrojet axis
Spray hole is opened up on peripheral wall between plate.
Further, the annular framework includes inner ring coaming plate and outer ring coaming plate, and the upper cover plate, lower cover plate seal respectively
It covers on interior collar plate and outer ring coaming plate annular opening, one end of the hollow hydrojet axis passes through the inside of inner ring coaming plate under
Cover board is fixedly connected, and the middle part of hollow hydrojet axis is fixedly connected with upper cover plate；
Preferably, upper spline slot is opened up on the upper cover plate, and lower spline, the hollow hydrojet are opened up on lower cover plate
There is the upper spline for being used for fit on spline and the lower spline for assembling lower spline on axis；
Preferably, the upper cover plate, lower cover plate, inner ring coaming plate and outer ring coaming plate are integrally formed.
Further, be arranged between the upper cover plate and lower cover plate it is multiple with hollow hydrojet axis is disposed in parallel runs through
Bar avoids the not resilient deformation of filler for dispersing revolving bed centrifugal force；
Preferably, the penetrating rod is distributed on the same circumference between inner ring coaming plate and outer ring coaming plate, and the circumference
It is arranged concentrically with inner ring coaming plate, outer ring coaming plate；
Preferably, there is multi-turn penetrating rod between the inner ring coaming plate and outer ring coaming plate.
Further, further include the inlet tube being connected with hollow hydrojet axis, the inlet tube and hollow hydrojet axis it
Between rotary sealing appts are set.
Further, it is described rotation bed body rotated bed outer diameter diameter be 800mm~1200mm, internal diameter be 100mm~
150mm, with a thickness of 150mm~200mm, revolving speed is 800 turns/min~1200 turn/min；
Preferably, dry bed weight is 30kg~50kg, and spouting liquid is 80L/min~120L/min, and wet bed weight is 100kg
~150kg, air-liquid are exchanged with 90 ° of angle cross-flows.
Regular wire packing of the invention is suitable for processing atm number (1700m3----2300m3), high revolving speed (800 turns/
Min--1200 turn/min), big orifice (diameter 800mm, thick 200mm), big spouting liquid (200L/min) it is high-gravity rotating bed,
Since the stopper protrusion and limit recess portion of the upper and lower surface of adjacent two layers filler laminate cooperate, it is worked to avoid revolving bed
The deformation of regular wire packing in journey, gas-liquid is able to quickly sufficiently fusion in this case, to significantly improve the item of air-liquid
Between mass transfer rate, achieved the purpose that rapid acquiring harmful substance in the short time.
Of the invention is high-gravity rotating bed, and the hollow design of hydrojet axis 11 has dual function, in addition to having the function of axis also
Liquid spraying function is had both, such design philosophy is based primarily upon two o'clock consideration, first is that can be substantially reduced hollow hydrojet axis 11 and turn
The spacing of bed inner ring concedes space and increases revolving bed effective discharge area.Second is that can be upper cover plate, inner ring coaming plate, outer collar
Plate, lower cover plate manufacture are at a circular organic whole, to substantially increase the structural stability of revolving bed, and upper cover
Plate, lower cover plate are linked together common rotation by spline and hollow hydrojet axis 11, and torque is transmitted simultaneously by upper and lower cover plates, this
Sample avoids the bring " yaw phenomenon " due to high speed rotation.
Detailed description of the invention
The purification process flow chart of Fig. 1 exhaust gas processing device of the present invention；
The system flow chart of Fig. 2 exhaust gas processing device of the present invention；
The liquid channel system figure of Fig. 3 exhaust gas processing device of the present invention；
The liquid channel system figure (recurrent state) of Fig. 4 exhaust gas processing device of the present invention；
The liquid channel system figure (drain state) of Fig. 5 exhaust gas processing device of the present invention；
The liquid channel system figure (fluid infusion state) of Fig. 6 exhaust gas processing device of the present invention；
The high-gravity rotating bed system flow chart of Fig. 7 tradition；
The high-gravity rotating bed system flow chart of Fig. 8 present invention；
The high-gravity rotating bed structural schematic diagram of Fig. 9 tradition；
The high-gravity rotating bed structural schematic diagram of Figure 10 present invention；
The schematic perspective view of the high-gravity rotating bed rotation bed body of Figure 11 present invention；
The high-gravity rotating bed top view of Figure 12 present invention；
The schematic perspective view of the filler laminate of the regular wire packing of Figure 13 present invention；
The sectional view of the filler laminate of the regular wire packing of Figure 14 present invention；
The schematic perspective view of the regular wire packing of Figure 15 present invention；
The structural schematic diagram of the high-gravity rotating bed hollow hydrojet axis of Figure 16 present invention；
The scheme of installation of the high-gravity rotating bed hollow hydrojet axis of Figure 17 present invention.
Specific embodiment
It is detailed to a kind of regular wire packing of the invention, manufacturing process and high-gravity rotating bed progress with reference to the accompanying drawing
Description:
Embodiment one
As shown in figure 8, the present embodiment provides a kind of exhaust gas processing devices, comprising:
Tank body 2；
The convective purification in tank body, for tail gas is arranged in convective purification device；
And/or cross-flow purification device, it is arranged in tank body, the cross-flow for tail gas purifies；
Tail gas be passed into tank body 2 by convective purification device carry out convective purification and/or by cross-flow purification device into
Row cross-flow purification.
The exhaust gas processing device of the present embodiment is integrated with convective purification device and cross-flow purification device in same tank body, right
Stream purification device and/or cross-flow purification device can be handled tail gas, and degree of integration is high, meet the space of exhaust gas processing device
It is required that.
Further, the top setting of the air inlet 1 that the bottom setting of the tank body 2 enters for tail gas, tank body 2 is used for
The gas outlet 9 of tail gas discharge, the tank body is interior to set gradually convective purification device, cross-flow purification dress from air inlet 1 to gas outlet 9
It sets；The convective purification device includes gas distributor 3 and the liquid distribution trough 4 that 3 top of gas distributor is arranged in；It is described
Cross-flow purification device be high-gravity rotating bed 5.
As shown in fig. 7, traditional super-gravity device is high-gravity rotating bed and outer housing composition one is relatively close
The small space closed forms a super gravity field, has a single function.
The exhaust gas processing device adaptation to local conditions of the present embodiment has broken the single structure of super-gravity device, collects liquid storage, gas
Rectification and current stabilization, system hydrojet recycle and cross-flow and convection current are incorporated into a space and complete, greatly accelerate gas-liquid and melt
The mass-transfer efficiency of conjunction improves system purification effect at double.Such space layout and absorption tower and high-gravity technology are gathered
Dual function.
As shown in figure 3, the exhaust gas processing device of the present embodiment further includes liquid channel system, liquid channel system includes:
Water pump 8, for driving circulating for tail gas absorption liquid；
First pipeline is connected to the bottom of water pump 8 and tank body 2, the first valve V1 is arranged on the first pipeline；
The second valve V2 is arranged on second pipeline in second pipeline, the tail gas absorption liquid for being discharged in tank body 2；
Third valve V3 is arranged on third pipeline for supplementing tail gas absorption liquid into tank body 2 in third pipeline；
4th pipeline is connected to water pump 2 and liquid distribution trough 4, the 4th valve V4 is arranged on the 4th pipeline；
5th pipeline is connected to the liquid feeding end of water pump 2 with high-gravity rotating bed 5, the 5th valve V5 is arranged on the 5th pipeline.
The exhaust gas processing device of the present embodiment is required according to purification process technique and space layout requirement, passes through different valves
Door switching, in a limited space in well realize system work three kinds of states:
As shown in figure 4, tail gas absorption liquid recurrent state: the first valve V1 of control, the 4th valve V4, the 5th valve V5 are opened
It opens, the second valve V2, the 3rd V3 are closed, and tail gas absorption liquid is aspirated by water pump and reaches liquid distribution trough, high-gravity rotating bed spray
Out, tail gas absorption liquid is recycled in tank interior.
As shown in figure 5, tail gas absorption liquid discharge state: when tank body inner exhaust gas absorbing liquid reaches saturation state, control the
One valve V1, third valve V3 are opened, and the second valve V2, the 4th valve V4, the 5th valve V5 are closed, and aspirate tail gas by water pump
Absorbing liquid is discharged through the second pipeline.
As shown in fig. 6, tail gas absorption liquid fluid infusion state: the second valve V2 of control, the 4th valve V4, the 5th valve V5 are opened
It opens, the first valve V1, third valve V3 are closed, and aspirate the fluid infusion into tank body through third pipeline of tail gas absorption liquid by water pump.
As one embodiment of the present invention, the liquid distribution trough 4 include main hydraulic pipe and respectively with main hydraulic pipe phase
Multiple separating tubes of connection are evenly distributed at least three row's hydrojets towards the side of gas distributor on the main hydraulic pipe and separating tube
Hole.Preferably, the injection direction of the spray hole is in be arranged with 45 ° of horizontal plane.The liquid distribution trough 4 of the present embodiment is mainly to gas
3 hydrojet of body distributor, is sufficiently humidified so as to wire packing surface, forms wet labyrinth channel, makes sufficiently connecing for air-liquid large area
Touching.
The above-mentioned exhaust gas processing device of the present embodiment can be used as independent cleaning module and carry out vent gas treatment, can also be according to tool
The requirement of body is combined the efficiency for further promoting vent gas treatment.Further, as shown in Figure 1, vent gas treatment of the invention
Device is from cleaning principle, in finite time and the useful space, comes into full contact with gas-liquid as far as possible, it is intended that greatest extent
Extend gas, liquid between the mass transfer time, to reach purification purpose.This tail gas treatment process process uses level Four absorption process:
Level-one: rectification purification, tail gas become uniformly tiny current stabilization by turbulent flow, form gas-liquid convection current interaction up and down；
Second level: hypergravity purification, gas-liquid form axial-radial cross-flow interaction；
Three-level: rectification purification, tail gas become uniformly tiny current stabilization by turbulent flow, form gas-liquid convection current interaction up and down；
Level Four: hypergravity purification, gas-liquid form axial-radial cross-flow interaction.
Based on above-mentioned tail gas treatment process process, the exhaust gas processing device of the application, comprising:
First cleaning module is purified for the convective purification of tail gas and/or cross-flow；
Second cleaning module is purified for the convective purification of tail gas and/or cross-flow；
It connects between first cleaning module and the second cleaning module, tail gas passes sequentially through the first cleaning module and the second purification
Module carries out multistage purification.
It connects between first cleaning module of the present embodiment and the second cleaning module, tail gas passes sequentially through the first cleaning module
At least two-step purification is carried out with the second cleaning module, when the first cleaning module and the second cleaning module all have convective purification and mistake
, it can be achieved that the level Four clean-up effect of above-mentioned tail gas treatment process when stream purification.
The exhaust gas processing device of the present embodiment, which is connected using the first relatively independent cleaning module with the second cleaning module, to be made
With substantially prolonging the mass transfer time between air-liquid item, being used alternatingly for cross-flow and convection techniques makes air-liquid " rubbing " more
Uniformly, to promote purification efficiency at double.
Specifically, as shown in Fig. 2, the first cleaning module described in the present embodiment includes the first tank body 2-1, the first tank body 2-
The first convective purification device of setting and the first cross-flow purification device in 1；Second cleaning module includes the second tank body 2-2,
The second convective purification device of setting and the second cross-flow purification device in second tank body 2-2；The first tank body 2-1, which has, to be used for
First gas outlet of tail gas discharge, the second tank body 2-2 have the second air inlet entered for tail gas, first gas outlet
It is connected with the second air inlet.
Further, the air inlet 1 that the bottom setting of the first tank body 2-1 enters for tail gas, the first tank body 2-1's
First gas outlet of the top setting for tail gas discharge, the first tank body 2-1 is interior successively to be set from air inlet 1 to the first gas outlet
Set convective purification device, cross-flow purification device；The convective purification device includes first gas distributor 3-1 and setting the
The first liquid distribution trough 4-1 above one gas distributor 3-1；The cross-flow purification device is the first high-gravity rotating bed 5-
1。
The bottom setting of the second tank body 2-2 is used for the second air inlet that tail gas enters, and sets at the top of the second tank body 2-2
The gas outlet 9 for tail gas discharge is set, it is net from the second air inlet to gas outlet 9 to set gradually convection current in the second tank body 2-2
Makeup set, cross-flow purification device；The convective purification device includes second gas distributor 3-2 and setting in second gas point
Second liquid distributor 4-2 above cloth device 3-2；The cross-flow purification device is the second high-gravity rotating bed 5-2.
As an embodiment of the present embodiment, the first tank body 2-1 described in the present embodiment has to be entered for tail gas
The first air inlet, the second tank body has the second gas outlet for tail gas discharge, at first air inlet, the second outlet
Little differential pressure sensor is respectively set at mouthful；Between first gas outlet of first tank body and the second air inlet of the second tank body
It is connected to by connecting pipeline, diversion fan 6 is set on the connecting pipeline.The connecting line of two tank bodies of the present embodiment is installed
There is diversion fan, is automatically adjusted by the signal provided in the differential pressure pick-up of system entry and exit installation with frequency converter
(diversion fan revolving speed) systematic air flow makes import and export air quantity reach dynamic equilibrium and inlet and outlet pressure one Δ P difference of holding,
Gas and liquid two phases can be made to carry out mass transfer friendship with relatively reasonable speed again while air flow resistance does not occur for guarantee system in this way
It changes.
The tank body of the present embodiment: being connected in series by the tank body of two diameter 800mm high 1400mm, and tank base, which contains, to be absorbed
Liquid, liquid upper are sequentially installed with gas distributor (fixed bed)；Liquid distribution trough；High-gravity rotating bed (dynamic bed): upper cover
Plate；Hollow shaft；Bearing holder (housing, cover) etc..
The gas homogenization device of the present embodiment: rectification purification is realized by gas homogenization gas.Using specific surface area greater than 800
Stainless steel cloth filler, diameter 800mm, thick 200mm.Turbulent flow (inlet diameter 100mm) tail of main function Shi Shi≤0.2Mpa
Gas moment is uniformly cut into tiny air-flow, is moistened channel by labyrinth type and is uniformly risen, and absorbing liquid passes through liquid distribution trough
Sprinkling and under, air-liquid moment filler surface formed convective exchange, not only play first class purification effect, and make tail gas with
The pattern of 100%RH uniformly rise (rectification) enter it is high-gravity rotating bed, greatly improve air-liquid in high-gravity rotating bed filler
Effective contact area on surface.
The exhaust gas processing device of the present embodiment further include:
1. pedestal
It is welded by channel steel, is mainly used for the positioning of tank body, the fixation of component installation and car floor.
2. dynamical system
By motor, Timing Belt, belt pulley, hollow shaft and revolving bed constitute (as shown), according to system load size, lead to
It crosses frequency converter and adjusts motor speed, be allowed to progressively reach desired speed.Specific practice is: observing liquid outside rotated bed by form
The spray pattern of edge adjusts rotated bed revolving speed and spouting liquid, and physical state is that the liquid sprayed is uniformly fine and closely woven droplet.
3. gas-liquid separator
In view of gas-liquid separation is short time work, filer element type gas-liquid separator of the spy using customization, such installation side
Formula is compact-sized, saves space.
4. automatic control system
This system includes:
Sensing module: differential pressure pick-up；Ammonia, hydrazine sensor；Liquid level sensor；PH value sensor；Temperature sensor；
Control module: frequency converter；PLC programmable controller；
Execution module: heating blower；Buzzer；Overload protection；Purging and suction system；Fault alarm；
Display module: touch screen editable sets parameters index；
Control system can freely set system heating time, high-gravity rotating bed revolving speed, hydrojet according to operating ambient temperature
It is functional to measure control, fluid infusion, the institute such as drain, it is simple interface, easy to operate, it is functional can be by interface prompt easy manipulation.
The present embodiment provides a kind of control method of processing unit simultaneously, and processing unit includes control system, control
Method includes:
The control system control convective purification device and/or cross-flow purification device is carried out to the intracorporal tail gas of shell is entered
Convective purification and/or cross-flow purification.
Further, the control method of the exhaust gas processing device includes:
The control method of liquid channel system: the first valve V1 of control, the 4th valve V4, the 5th valve V5 are opened, the second valve
V2, the 3rd V3 are closed, and tail gas absorption liquid is aspirated by water pump and reaches liquid distribution trough, high-gravity rotating bed ejection, tail gas absorption
Liquid is recycled in tank interior；
When tank body inner exhaust gas absorbing liquid reaches saturation state, the first valve V1 of control, third valve V3 are opened, the second valve
Door V2, the 4th valve V4, the 5th valve V5 are closed, and are aspirated tail gas absorption liquid by water pump and are discharged through the second pipeline；
It controls the second valve V2, the 4th valve V4, the 5th valve V5 to open, the first valve V1, third valve V3 are closed, and are led to
Cross water pump suction tail gas absorption liquid fluid infusion into tank body through third pipeline.
The control method of diversion fan: at the first air inlet be arranged little differential pressure sensor detect import wind pressure P1, second
The little differential pressure sensor being arranged at gas outlet detects that one's intention as revealed in what one says presses P2, as import wind pressure P1 > outlet wind pressure P2, control system control
Diversion fan processed accelerates, and increases exhausting amount, P1 and P2 pressure is close, and diversion fan revolving speed tends towards stability；As import wind pressure P1 < out
When one's intention as revealed in what one says presses P2, control system controls diversion fan and slows down, P1 and P2 value reaches unanimity, and control system keeps diversion fan certain
Suction air quantity the remaining tail gas sucking processing in pipeline and system is clean.
Exhaust emissions Online Monitoring Control method: the content of the harmful substance of tail gas being discharged by the second gas outlet of detection,
When detect its content be greater than the set value when, then at least regulation increase revolving bed revolving speed, and/or increase water pump pump pressure, and/or increasing
Big spouting liquid.
Embodiment two
The high-gravity rotating bed invention of the present embodiment focuses on breaking through all now generally acknowledged traditional theories and thinking
Set looks for another way, creative to award liquid form four from the weaving method and type of feed of filler, the structure of rotated bed, rotated bed
Aspect obtains innovation inspiration, provides one kind and is suitable for handling atm number (1500m3----5000m3), (800 turns/min-- of high revolving speed
1200 turns/min), big orifice (diameter 800mm---1200mm, thick 200mm), big spouting liquid (200L/min), lasting rotation not
The wire packing of deformation and high-gravity rotating bed.
The present invention has built different test models and has carried out engineering verification, with experiment effect counterevidence theoretical implications, establishes
Emphasis parameter (impact factor: revolving speed, spouting liquid) model is adjusted with the dynamic that result is guiding, to find out the silk of universality
Net filler manufacturing method.
Conventional wire packing is generally by steel wire by braider establishment slabbing, by mold extrusion forming, and it is latter
Piece is a piece of to be overrided to form, and thickness, material and the size in aperture of string diameter directly affect the suppleness and deformation extent of filler, no matter
It using which type of preparation method and what kind of material, string diameter thickness, can all be deformed, deform under the circumference of the high-speed rotation
It is mainly made of two aspect reasons: first is that silk and silk can produce under the influence of centrifugal force because being that longitude and latitude takes volume between silk and silk
Raw relative displacement causes to deform, second is that upper and lower level does not have rigid constraint upper and lower level because inadequate per a piece of filler stiffness after laminating
Mutual dislocation and deform.The present invention puts forth effort solve both of these problems, specifically:
As shown in Figures 3 and 4, a kind of regular wire packing, including filler laminate 21, filler laminate 21 have punching, fill out
The upper and lower surface of bed of material plate 21 is respectively provided with stopper protrusion 24 and limit recess portion 23, the upper and lower surface of adjacent two layers filler laminate 21
Stopper protrusion 24 and limit recess portion 23 cooperate, for limiting the relative displacement between filler laminate 21.
Further, the stopper protrusion of the adjacent surface of adjacent two layers filler laminate and the dislocation of limit recess portion laminate, and lead to
It crosses mould plate and squeezes adjacent two layers filler laminate, interleave upper and lower level convex portion mutually, constitute and combine densification, upper and lower level mutually embedding
The organic whole structure entered.
Preferably, the upper surface of described filler layer plate have ∧ type protrusion and V-type recess portion, lower surface have ∧ type protrusion and
V-type recess portion, the ∧ type protrusion of the adjacent surface of adjacent two layers filler laminate and being laminated in 45° angle dislocation for V-type recess portion；Described
Punching is diamond shape punching.
Preferably, the specific surface area of the regular wire packing is 1200~1400.
Specifically, filler laminate uses the stainless steel plate of 0.3mm thickness, passes through die punching 4mm × 4mm diamond hole, back gauge
3mm, then it is squeezed on mold the V-groove of 3mm depth, the relative displacement of silk and silk is avoided in this way.
The present embodiment provides a kind of manufacturing process of regular wire packing simultaneously, comprising: choosing system is certain thickness
Stainless steel plate by mold punching on stainless steel, then is squeezed on mold the stopper protrusion of certain depth and limits recessed
Portion.
Further, the manufacturing process include: each layer of filler laminate stopper protrusion and stopper protrusion in 45 °
Angular misalignment laminates, free height 3mm~5mm of each layer of filler laminate, and adjacent two layers filler laminate is made by mould plate extruding
It is laminated to 4mm~8mm, squeezing the opposite extrusion deformation of adjacent two layers filler laminate by mould plate makes upper and lower level constitute combination cause
The organic whole structure that close, upper and lower level mutually involves.
Preferably, the filler laminate uses the stainless steel plate of 0.3mm thickness, passes through die punching 4mm × 4mm diamond shape
Hole, then be squeezed on mold the V-groove of 3mm depth and be made.
As shown in Figure 10-Figure 17, the present embodiment additionally provides a kind of hypergravity rotation of regular wire packing simultaneously
Bed, comprising:
Rotate bed body, built-in regular wire packing 20；
Hollow hydrojet axis 11 moves its rotation with rotation bed body connecting band；
Multiple spray holes 27 are opened up on the peripheral wall of the hollow hydrojet axis 11, drive rotation bed body for hollow hydrojet axis 11
Liquid is awarded to regular wire packing 20 during rotation.
As shown in figure 9, traditional high-gravity rotating bed shaft 12 drives rotation bed body rotation, it is arranged due to awarding liquid pipe 13
At the middle part of rotation bed body, it cannot be rotated together with rotated bed, installation space must be reserved between upper cover plate and shaft 12, so that on
Hanging between cover board and shaft 12, not only torque can only be transmitted by lower pallet in this way, and rotated bed body and do not formed closed loop
Frame stability structure easily causes dynamic balancing unbalance, and high speed rotation gets up will cause " yaw phenomenon ".
It is of the invention it is high-gravity rotating bed using hollow shaft award liquid and not only increase award the effective area of liquid, and improve
It awards the uniformity of liquid and effectively increases the effective area that gas passes through, improve the efficiency of gas-liquid exchange.
Further, as shown in FIG. 11 and 12, rotation bed body described in the present embodiment includes ring frame 16, capping annular
The upper cover plate 17 and lower cover plate 15 of 16 both ends open of frame, the hollow hydrojet axis 11 are solid with upper cover plate 17, lower cover plate 15 respectively
It is fixed to connect, spray hole 27 is opened up on the peripheral wall on the hollow hydrojet axis 11 between upper cover plate 17 and lower cover plate 15.
As an embodiment of the present embodiment, the annular framework 16 includes inner ring coaming plate and outer ring coaming plate, institute
State upper cover plate, lower cover plate is sealed in inner ring coaming plate and outer ring coaming plate annular opening on, one end of the hollow hydrojet axis
Inside across inner ring coaming plate is fixedly connected with lower cover plate, and the middle part of hollow hydrojet axis is fixedly connected with upper cover plate.
Preferably, upper spline slot 18 is opened up on the upper cover plate, and lower spline, the hollow spray are opened up on lower cover plate
There is the upper spline for being used for fit on spline and the lower spline for assembling lower spline on liquid axis 11.
Preferably, the upper cover plate, lower cover plate, inner ring coaming plate and outer ring coaming plate are integrally formed.
The hollow design of hydrojet axis 11 has dual function, and liquid spraying function is also had both in addition to having the function of axis, such to set
Meter thought is based primarily upon two o'clock consideration, first is that the spacing of hollow hydrojet axis 11 and rotated bed inner ring can be substantially reduced, concedes space
Increase revolving bed effective discharge area.Second is that can be upper cover plate, inner ring coaming plate, outer ring coaming plate, lower cover plate manufacture at a circle
Cricoid organic whole, to substantially increase the structural stability of revolving bed, and upper cover plate, lower cover plate by spline and
Hollow hydrojet axis 11 is linked together common rotation, and torque is transmitted simultaneously by upper and lower cover plates, avoided in this way because of high speed rotation
And bring " yaw phenomenon ".
Further, it is arranged between the upper cover plate 17 and lower cover plate 15 multiple disposed in parallel with hollow hydrojet axis 11
Penetrating rod 19 avoids the not resilient deformation of filler for dispersing revolving bed centrifugal force.
Preferably, the penetrating rod 19 is distributed on the same circumference between inner ring coaming plate and outer ring coaming plate, and the circle
Week is arranged concentrically with inner ring coaming plate, outer ring coaming plate.
Preferably, there is multi-turn penetrating rod 19 between the inner ring coaming plate and outer ring coaming plate.
According to the annulus geometric diameter of revolving bed, using axis as the center of circle, between the upper and lower cover plates spoke of rotated bed be arranged multilayer and
The parallel penetrating rod 19 of axis, penetrating rod 19 uses drift bolt, dispersible to undertake centrifugal force, caused by avoiding major diameter filler from deforming not
Resiliently.
Every layer of filler is cut into garden ring type by inside and outside ring size, and tiling is packed into frame in layer, and upper and lower level is staggered 45° angle
It places, every thickness degree 3mm, but two layers is expressed to 4mm thickness and every layer of increase 2mm thickness with template, guarantees that upper and lower level has 1mm wrong
Position laminates.So as to guaranteeing that upper and lower level contact densification does not misplace.
The upper and lower level filler laminate protrusion of the present embodiment, which is mutually embedded in, forms compact texture, embedded to prevent the mutual of interlayer
Displacement；The V-shaped groove punching web plate of filler laminate thus effectively prevents the mutual vibration of silk screen due to being an entirety；It wears
Nail plays the uniformly distributed effect of centrifugal force；Solidify wire packing bed structure by this three measures, so that deformation be made to be limited to most
Small range.
The present embodiment one kind it is high-gravity rotating bed further include the inlet tube being connected with hollow hydrojet axis 11, it is described into
Rotary sealing appts 29 are set between liquid pipe and hollow hydrojet axis, and liquid and sealing are awarded in the rotation for realizing hollow hydrojet axis.
The rotated bed outer diameter diameter of the rotation bed body of the present embodiment is 800mm~1200mm, and internal diameter is 100mm~150mm, thick
Degree is 150mm~200mm, and revolving speed is 800 turns/min~1200 turn/min.
Preferably, dry bed weight is 30kg~50kg, and spouting liquid is 80L/min~120L/min, and wet bed weight is 100kg
~150kg, air-liquid are exchanged with 90 ° of angle cross-flows.The outer diameter 60mm of hollow hydrojet axis 11, the sectional area of internal diameter 30mm, internal diameter are
706mm2, in the uniform turn hole in axis surface 900 of face revolving bed (thick 200mm), each diameter 1mm, as to revolving bed
Award liquid spray orifice.It is intended to optimize the effective discharge area of rotated bed and rotated bed structure (if additionally mounted sparge pipe not only annular diameters
Increase, and upper cover plate cannot form closed loop configuration), the integrality (closed frame structure) of rotated bed structure is improved, thus
The dynamically balanced stability of rotated bed is greatly improved, obtains the guarantee that provides the foundation rotate at high speed for rotated bed.
High-gravity rotating bed carrying out practically mechanism is: wet tail gas is uniformly axial after junior rectifies to be risen, and is absorbed
Liquid is sprayed at revolving bed inner ring surface by the way that hollow hydrojet axis 11 is radial, and the tail gas absorption liquid of ejection exists under the influence of centrifugal force
Filler surface forms liquid film, brin, and the cross-flow exchange of air-liquid, high speed is consequently formed in liquid pearl state and from inside to outside radial motion
Rotation (800 turns/min), so that revolving bed moment is generated the acceleration of gravity of 8g, gas-liquid is able to quickly sufficiently melt in this case
It closes, to significantly improve the interphase mass transfer rate of air-liquid.Rapid acquiring harmful substance in the short time is achieved the purpose that.
The present embodiment provides a kind of processing unit with such as described high-gravity rotating bed online processing tail gas simultaneously, packet
Tank body 2 is included, the hypergravity guard bed is arranged inside tank body 2.
Preferably, the upper end of the hollow hydrojet axis 11 is stretched out 2 top of tank body and is connect with inlet tube, the hollow hydrojet
Mechanically-sealing apparatus 30 is set between 2 top cover board 31 of axis and tank body.
The above is only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this patent
Member without departing from the scope of the present invention, when the technology contents using above-mentioned prompt make it is a little change or be modified to
The equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, it is right according to the technical essence of the invention
Any simple modification, equivalent change and modification made by above embodiments, in the range of still falling within the present invention program.
Claims (10)
1. a kind of regular wire packing, which is characterized in that including filler laminate, filler laminate has a punching, filler laminate it is upper
Lower surface is respectively provided with stopper protrusion and limit recess portion, and the stopper protrusion of the upper and lower surface of adjacent two layers filler laminate and limit are recessed
Portion cooperates, for limiting the relative displacement between filler laminate.
2. regular wire packing according to claim 1, which is characterized in that the adjacent surface of adjacent two layers filler laminate
Stopper protrusion and the dislocation of limit recess portion laminate, and squeezing the opposite extrusion deformation of adjacent two layers filler laminate by mould plate makes
Lower layer constitutes the organic whole structure for combining fine and close, upper and lower level mutually to involve；
Preferably, the upper surface of described filler layer plate has ∧ type protrusion and V-type recess portion, and lower surface has ∧ type protrusion and V-type
Recess portion, the ∧ type protrusion of the adjacent surface of adjacent two layers filler laminate and being laminated in 45° angle dislocation for V-type recess portion；Described rushes
Hole is diamond shape punching；
Preferably, the specific surface area of the regular wire packing is 1200~1400.
3. a kind of manufacturing process of the regular wire packing as described in claim 1-2 any one characterized by comprising choosing
Certain thickness stainless steel plate is made, by mold punching on stainless steel, then is squeezed on mold the limit of certain depth
Protrusion and limit recess portion.
4. manufacturing process according to claim 3 characterized by comprising the stopper protrusion of each layer of filler laminate with
Stopper protrusion is laminated in 45° angle dislocation, free height 3mm~5mm of each layer of filler laminate, and adjacent two layers filler laminate is logical
Crossing mould plate extruding makes to be laminated to 4mm~8mm, and squeezing the opposite extrusion deformation of adjacent two layers filler laminate by mould plate makes
Lower layer constitutes the organic whole structure for combining fine and close, upper and lower level mutually to involve；
Preferably, the filler laminate uses the stainless steel plate of 0.3mm thickness, by die punching 4mm × 4mm diamond hole, then
The V-groove that 3mm depth is squeezed on mold is made.
5. it is a kind of with as described in claim 1-2 any one regular wire packing it is high-gravity rotating bed, which is characterized in that
Include:
Rotate bed body, built-in regular wire packing；
Hollow hydrojet axis moves its rotation with rotation bed body connecting band；
Multiple spray holes are opened up on the peripheral wall of the hollow hydrojet axis, the process of rotation bed body rotation is driven for hollow hydrojet axis
It is middle to award liquid to regular wire packing.
6. one kind according to claim 5 is high-gravity rotating bed, which is characterized in that the rotation bed body includes annular
Frame, the upper cover plate and lower cover plate for covering ring frame both ends open, the hollow hydrojet axis are fixed with upper cover plate, lower cover plate respectively
It connects, opens up spray hole on the peripheral wall on the hollow hydrojet axis between upper cover plate and lower cover plate.
7. one kind according to claim 6 is high-gravity rotating bed, which is characterized in that the annular framework includes interior collar
Plate and outer ring coaming plate, the upper cover plate, lower cover plate are sealed on inner ring coaming plate and outer ring coaming plate annular opening, it is described in
The inside that one end of empty hydrojet axis passes through inner ring coaming plate is fixedly connected with lower cover plate, and the middle part of hollow hydrojet axis is fixed with upper cover plate
Connection；
Preferably, upper spline slot is opened up on the upper cover plate, opens up lower spline on lower cover plate, on the hollow hydrojet axis
With the upper spline for fit on spline and the lower spline for assembling lower spline；
Preferably, the upper cover plate, lower cover plate, inner ring coaming plate and outer ring coaming plate are integrally formed.
8. one kind according to claim 6 is high-gravity rotating bed, which is characterized in that between the upper cover plate and lower cover plate
Multiple and hollow hydrojet axis penetrating rod disposed in parallel is set, the not resilient shape of filler is avoided for dispersing revolving bed centrifugal force
Become；
Preferably, the penetrating rod is distributed on the same circumference between inner ring coaming plate and outer ring coaming plate, and the circumference with it is interior
Collar plate, outer ring coaming plate are arranged concentrically；
Preferably, there is multi-turn penetrating rod between the inner ring coaming plate and outer ring coaming plate.
9. one kind according to claim 5 is high-gravity rotating bed, which is characterized in that further include being connected with hollow hydrojet axis
Inlet tube, rotary sealing appts are set between the inlet tube and hollow hydrojet axis.
10. one kind according to claim 5 is high-gravity rotating bed, which is characterized in that the rotated bed outer diameter of the rotation bed body
Diameter is 800mm~1200mm, and internal diameter is 100mm~150mm, with a thickness of 150mm~200mm, revolving speed be 800 turns/min~
1200 turns/min；
Preferably, dry bed weight be 30kg~50kg, spouting liquid be 80L/min~120L/min, wet bed weight be 100kg~
150kg, air-liquid are exchanged with 90 ° of angle cross-flows.
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| CN201910285045.0A CN110038395A (en) | 2019-04-10 | 2019-04-10 | A kind of regular wire packing, manufacturing process and high-gravity rotating bed |
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Application publication date: 20190723 |