JPS5932934A - Mass transfer contact apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention is a method for completely removing solid or (-1) liquid particles mixed in an air flow [7]. -γ~Body scrubber (
This article relates to a mass transfer contact device that uses a cleaning device (cleaning device).

The present invention also includes a shelf 11. It is applicable to any gas treatment requiring intimate contact between a gas and a liquid.

Processing operations of this type generally involve heat exchange between the gas and the liquid, and the liquid is saturated or partially saturated by contacting the liquid with a cooled liquid. This process includes drying and processing the λ stream, stripping, distillation, and other treatments.

Chemical industry technology Q (ha) - mentioned gas cleaning - 1'
In addition to
! There are various fields in which mass transfer reactions, energy transfer reactions, chemical reactions, reactions, or all combinations of these reactions can be carried out by bringing liquids into intimate contact with each other. A liquid or gaseous feed stream is continuously introduced into the gas-liquid contacting vessel V and a gaseous and liquid product stream is continuously withdrawn. In most cases, the two flow paths through the container are
It is a self-flowing type, and liquid is introduced near the top of the container and drawn out from the bottom, whereas gas is introduced near the bottom of the container and drawn out from the top. However, in some cases, a co-directional type is adopted in which two streams flow in the same direction in the container.

Typically, a V-type passive device in a gas-liquid contact vessel is employed, ie, a structure in which the liquid and gas are brought into contact with each other to a desired degree to produce a desired reaction at a desired rate. In other words, the internal structure is passive in the sense that no driving force is supplied and there are almost no moving parts (moving here refers to the entire movement of the gas in the container under the influence of the liquid). ). The structure of the passive device includes a valve tray, a packed column and a grid structure. The design of the container is
Ideally, the process should take only 1 minute to consider the processing operation and structure.The contact reaction should take 11 minutes from the viewpoint of quality (purity) and yield. It must be efficient. Using the right energy supplied efficiently in the drying process, it is possible to achieve a reaction with a power of 1+ (+l) of 1+ (+l) of the old QC, r14 (low).

The device is simply and economically produced - N tl, ,
-) Something that can be easily cleaned and maintained,
Tsu・rarai. There are also 4 containers! '1￥Trade and hope-
I L, < il: ↓The container should be as small and short as possible.
j'' method (・ko finish (jruheki desu).

Consideration of L (・1) It can be summarized as follows.

In other words, the gas-liquid contact device is capable of obtaining good 41 product quality and yield in energy efficiency and low pressure Fi/, and the gas-liquid contact device is simple. It must be manufacturable, practical, easy to maintain, and provide maximum processing time characteristics (throughput capacity) in minimal equipment space and tall tower chairs.

1. It is therefore a basic object of the present invention to provide a gas-liquid contacting device which substantially satisfies the above requirements and exhibits high efficiency at lower manufacturing and operating costs.

The means for achieving these and other objects will become apparent from the following detailed description and drawings. In summary, the present invention is an improved gas-liquid contacting device that utilizes a special profile placed in the airflow within the device. The case element ideally has a cross-sectional blower eel equal to the algebraic sum V of the theoretical velocity-pressure profile of the gas flow in the open vessel and the static and dynamic wave fronts of the contacting liquid. This is approximately achieved by a free-suspending catenary-type lattice. Approximately 5-40% for the grid
An extra depth of ' or more is added, thereby creating an energy imbalance that supports the introduced liquid and thus allows its evacuation. The grid members may be made of rigid or flexible materials, but cleaning is particularly advantageous in the case of flexible materials. Particles that are improved from Q in the case of a lattice (arranged in individual pieces or arranged with an phantom spacing f'j of the latter) in the case of array configuration. Removal performance: 1-.The device can be used in counter-current and co-current systems.The contacting liquid can therefore be introduced from the opposite side of the flow, or by air flow. It is effective to reduce the open area of the lattice group by 75% or more.

Catenary type grid C airflow velocity 11. ', )ry field parabolic approximation provides reasonable structural simplicity, but may also be used, such as a shallow cone or a circular raccoon array, with some variation in efficiency. Furthermore, if the device of the present invention is to be used in a container of the present type f, and if the current structure of the present type a is inconvenient for the use of a single grating, it is possible to employ a plurality of grating modules. can. Each of these modules is designed to contain a grid size that approximates the velocity-pressure profile of the airflow. If the case f- or case r of - is supported in a suspended manner, jl- approaches the existing effect as in the case of -.
I can do that.

+- Origin of invention 1?1! It is understood that IJ can be applied to various types of gas-liquid IX contact devices. However, for convenience of explanation, the above description assumes that it is incorporated into a gas scrubber device.

With reference to FIG. 1, the device (10) comprises four housing parts (12) for the passage of contaminated gases, the housing parts (14) and (lli) l
- Yes - 1 is shown as being present. A conduit is arranged between these ports and the outlet L1 (in the fAI clean container 8).

Remove the container from U↓゛Further drain IJ f2[]),
C. Circulating liquid connection 1-I i2 power and chevron or mist eliminator (4) are arranged, but this 11
These are elements basically unrelated to the present invention.

Inside the container (〆te 1/''-number case T' one move/1 shiro)~(
36) is hanging. These are suspended from the sides of the container by suitable means (not shown), such as circular rim pieces. are arranged in

In this figure, the case r-s is shown as a J-pair array, but as will be explained later, it is clear that D-3!,, iTi
The principle of the present invention is that the lattice portion 4" is arranged L/IJ V
The same applies to CJ-=・C.

It is clear from Figure 1 that each J' section 44:2
Fi! ~(, (6) 4-, j shallow parabolic ring weakness;
(7) Regarding the 1, 〒u and effect of setting d1 (described in 71 and above), it is iM.

In the illustrated embodiment, the grade r vs. θ) hh is such that (1 cleaning solution is distributed to each grid −χ・soil upper grade f−0・i″, ·(gate type side jlζ1°) T step +38 ) is ILI
Flt;Hesa r'1. 4, (The second distributing means is connected to the cleaning source (・, N, li'l /ζ-tsuge・
・t()□(44 and ':, multiple IJ14 consisting of open 1j11 joint design target 2 low 1t: (5-ro rib 1
1) A device that distributes the liquid to the nozzle. kot'L'
Knee, :r L'j 'zuru (-L side 11'ii
i pregnant cross 2) to top case r section 121if, f shout and (3
A droplet is dropped on the 4th surface of 4).

Due to the performance of the present invention, the liquid injection method is not limited to J White 1 and vehicle equipment, but the market is equipped with a spray set, 11 various liquid injection methods such as flow type, contact type and overflow type. .

I can stay with J for a month.

When the gas passes through the conduit, - [i.e. the scrubber vessel,
Velocity +-++: Brosoil has a shape that approximates a shallow parabola. 17) The velocity pressure is maximum at the center of the container, L, and decreases to approximately 0 at the side walls.

In either case, the unit mass M flow rate at the point 7-1 is as follows (assuming it is a homogeneous fj mixture).

MX=V ρ C)X Here town - mass flow rate (11) / f t2/ 5cc
) Vox gas velocity at one point X (ft/5ee) ρ
2. Gas density (lb/ft) Therefore, the mass flow needle at the r11th position is the largest at the center of the container.

This effect becomes more pronounced as the tower gas velocity increases (10-15 ft/se+) or more. The mass flow rate in the center of the vessel can be several hundred times higher than the flow rate at the walls.

If the cleaning solution or container diameter is 4 (sprayed evenly)
If you lose 11 or lose 4j, point X at 7'L.
K:E,・Keruotsu, a pair of purified liquid-'I-1i17r
, li ratio &; J: Yes, Mx one point
Tl fl't ll'1i j, 7 (lb/i1
2/y:t:c).

This j- is a certain angle (・72 oi 1 action-f-ka)
The absorption rate of the cass scrubber is 7LJ dye gas (')
- (J Mf output, related to the specific quality of the cleaning solution -f-
1. -C is here.

I7 Therefore, the absorption, impingement size, or cutoff speed varies depending on the diametrical direction of the scrubber. -Il, that is, this velocity is between the wall surface and the center of the container ([11 points (7'
・This is because the gas velocity at the middle point is lower than at the center.
If MX gets bigger, the mouth and I, y41, ? '-J
[becomes lower].

−[− To compensate for the loss of
f'1. Through the enterprise - C proportionately done) Tatashi -
Zunoshihan's ability is even lower. This - 1''g of gas and liquid:
This is because the contact time is shorter in the center where the gas velocity is faster. This situation is further facilitated because the spray is based on the total coupling of the acceleration of gravity to the desired velocity.

Furthermore, in the central region, if the lower spray liquid tft [increases in the case of countercurrent flow type], t(ri) and the upper and lower flow liquid Mk decreases (in the case of co-directional flow), distribution and gas mixing problems will occur. .

However, if a grid of suitable shape is located at a point sufficiently lower than the point of contact between the side wall of the container and the grid,
), the cross-sectional profile of the case rises in the container; it approximates (in mirror image) the velocity-pressure profile of the dyed gas, and the velocity relative to the absorption and other velocities. The effect of can be ignored to a large extent.

As a result, the total gas flow near the sidewalls can be increased by providing more cleaning liquid in this high velocity region and creating a greater total resistance in the central region to the air flow. Therefore, the entire container can be used for six purposes.

Is the grid a metal or non-metallic flexible material? It can be formed from No. In other words, the material is press-molded into a shape that approximates the velocity profile, thereby producing the desired grade stone: 3L. The desired grid shape Q1 can also be obtained by a plurality of circular mesh segments Q'r connected to a shallow circular cedar mesonue or rl formed so as to approximate the respective UCs. The grid made of non-rigid material can be mechanically deflected for convenience of cleaning if desired. ↓It is necessary to use other reinforcement parts (1-1・).

The area is selected so that the total area of case 2 F- accommodates 1r5II each of the rows fl. For example, the open area should be small if it is necessary to store the amount of cleaning solution that will be used for 1 month.
- It is possible to reduce the erosion and wear of the part 14 or increase its structural strength (for large vessel spans) U',1; Conversely, if the required energy extraction is to be limited, or if a large amount of cleaning fluid is to be mined (when the concentration of gas contamination is high), cleaning fluids containing a high percentage of solid gold, such as limestone slurries, may be used. Furthermore, in cases where there are high-density contaminant particles, it is necessary to have a larger opening area.In general, 1 area is about 50 to 75% of the total amount. Although it is common, in some cases a very large area of 85 to 90% is used.
However, for such extremely large open areas, the performance of the lattice stirrer bar is close to that of a regular spray tower, and problems specific to the spray tower must be taken into account. In the settings, the depth at any point across the vessel is determined by the J-method (I
X is given by the following formula.

dX=■) vX→L+ for river I) IDT, (
Equation l] where I) vx velocity pressure of gas at one point X 1-
I S L - Stationary wave front of the cleaning liquid 1 - I D L = Working liquid head of the cleaning liquid Note: This is an algebraic sum, and the relative signs of the components are such that the equation applies to both co-flow and counter-flow systems. It is a place that is determined so that it can be done. I, acting in the direction) 1:, If the force is negative, 1:11 to the same direction, the force will be positive.

H8L and! -11) L is the phase χ・↑ which crosses the container.

Since there is an iJ flexible lattice, if its contour draws a substantial parabola (catenary type and approximation type of the ideal case rpO field), then the it calculation is the depth of the lattice in the center of the container ( 1 (only kenzan and funeral purification.

dc = Pvc →■−■S L+ III)L
(Formula 2) The total gas velocity pressure of water can be calculated using the following conventional Pitot tube equation.

The folding unit is G″L″n/sec.
oA1. . 1 is the average value of gas velocity, Q U style ft
/min) VO Ao is the cross-sectional area of the vessel ft, and ρ is the carrier gas density 1 (I8/) at the actual temperature and pressure conditions. The gas pressure at the medium heat section is converted to C. This is then multiplied by 11 because 3 represents the pressure at the center, and ζ represents the average gas velocity pressure, and is obtained by n. . Therefore ■゛...Vc.

” ' ``AWI. The static wavefront HSL of the cleaning liquid is determined from the following equation.

IIS■No--1□-LL-1 ρI! Ao.

ζ(L is liquid flow rate (gal/m1n), ρI is liquid density,
tchi, sor n.

is the holding time r = 1 cmin determined experimentally for the lattice)
, typically a minimum of 0.1 seconds/6o (minutes), f = 0.0017 minutes.
S L is 12 and J:I) υru'-(!T K j Rein (- & sinking J)ノ↑, Sarah K 2.54 and 111
ζ is converted to yorisen (nor) with a low Q.

Operating Head II I) L H Small coefficient and not very important. 1.1 subt, -,, 'cheat, respectively. Teyo'
If the cleaning liquid is applied near the grating with 11), the velocity of the cleaning liquid will be IE.

If the IIL point of the Cadenary lattice is tE 47M K
If tr c , then the ethurgy □+Ran j condition exists between liquid J-gas starvation. The top of the grid (
The liquid introduced at N) stops or flows, but is not immediately discharged.

[1. Experiments conducted by the inventors show that it is necessary to generate an imbalance to support the cleaning liquid. In order to make the lattice molded even deeper.
, reach spread. This depth increase and dt will vary depending on many factors. 1, that is, whether the contaminated gas contains particulate matter, 1, the density of the contaminated gas, the viscosity of the cleaning liquid, the tower gas velocity, the corrosion of other parts, and 2, the allowable limit of corrosion, etc.

For example, Desto shows that the values of da calculated above can vary from 5% (for particles-free gas) to 40% (for particles-free gas) -1.

A schematic diagram depicting the contact between liquid and gas around a single case f- is shown in Figure 2! -> I am.

The cleaning liquid is shown as being dripped from above toward the contact area at =9. As already mentioned, the cleaning liquid can be introduced into the upper surface 1 of the grid in various ways. This is not limited to the operation of the flow region described below.

The flowing gas is shown as having a velocity pressure profile 64). When this gas reaches the catenary grating 121, a strongly turbulent region is formed above and below the grating. Furthermore, the gas-liquid contact surface K is evenly distributed throughout the top of the grid.

The cleaning solution was dripped and randomly distributed on both sides of this contact surface.・J, a flowing region where dye scum and Q・K interact effectively is formed. IQ is r)-f with improved absorption properties of the present invention.

The height of the flow zone will be a function of liquid size and gas velocity. The higher this flow range, the greater the gas absorption and particle removal properties. In the case of a lattice with a similar concave shape, the top of the flow region...iυ2 is essentially the river \Ii. Due to the relatively shallow shape of the depression, the center 8 (S) of the top is higher than the area near the side of the container. Wow L7.Actual - L gas nhL passage L51 About the extremely shallow concave shaped lattice 41
．． It is something to do.

Due to the equilibrium of the energy supporting the cleaning liquid, droplets in one flow zone are often collected (4:JI) after a certain operating time at 11-r. (Drainage occurs near the center of the grid.) 1 Saliva is collected in the drain sump ζ on the F side for release, regeneration, and reuse. Movement of droplets in the flow zone C. The time will vary according to various factors, but an experimental CC of 3 to 4 seconds has been determined.

The above effects were verified by photographic and laboratory tests, and field bite tests and analyses.

Because of the precisely formed n7Th lattice, the velocity-pressure profile of the flowing gas is relatively uniform, with gas from the center dispersing toward the side walls of the vessel.

The fluid flowing through the grid (is the path [
741K from the side wall toward the center.

In situations where the temporary contaminants are essentially gaseous, a single-grid Cabunary-grid scrubber has been found to be effective.

8 through a venturi scrubber at comparable liquid-to-gas ratios in a pilot test using SO2:2 as the contaminant and limestone slurry as the cleaning fluid.
A significant improvement in the 02 removal efficiency was observed. The formed lattice (by 80, by 15-25 by 1. +/ (
85 ~ using 1 value (CI = (gas flow rate at f...)
There was 92% -C-. Hentury scrubber is io~
:i(l of L/(l) 30-55% SO2 removal at l value -f-ruko is expected.Efficiency of 1rFJ tl was also obtained with tower scrubber, but L/ ,
Only for very high values of the ratio 50-1oO.

Figure 3 - According to the experimentally derived 7"-2) i, / (1fi: catenary type lattice) The area above this curve is
[Reflects all of the stones.] No flow occurs in the region q~ of the curve F. The L/+1 ratio is in the region (7
The system operation is selected in φ.

FIG. 4 shows various pressure drops through a single-grid cage scrubber at various gas velocities and liquid-to-gradient gas ratios.

These pilot tests show that the gas velocity in the catenary scrubber can be higher than that in a typical spray tower scrubber.
(t/sec) was formed without irregularities. No graphs above this were plotted, but with a single grid, facing velocities up to 25 (ps) were achieved. Higher gas velocities allow for the formation of smaller and more economical contact towers [7] thus limiting total economic investment and reducing operating space. I can do things.

The liquid flow rate pattern north of 25 It/sec becomes discontinuous. In this case, the fluidized cleaning liquid in a turbulent state is destroyed. Therefore, the pressure drop curve in FIG. 4 becomes discontinuous as shown by the broken line. Optimum gas velocity in catenary type (based on best flow condition at Li2 ratio of size C)
is 8-12 ft/sec in tower scrubber
It is about 16 ft/sec compared to
The unfavorable gas-liquid contact state is Vζoi-(7
, % et al.).

Lower pressure drop tJ in wet operation
1 Dora 4, Abej ~ - As in the case in Shikon,
This allows for the creation of a temporary bypass path through the container in an emergency situation. Dry loss is typically 1
It is about 02-04 water/grade r.

A particle removal area (-1 micron) skewer grid has been found to have an efficiency of approximately 65%.The present invention is an extension of that basic principle, -Ul within a predetermined maximum distance from the first grid 6"% -c c
, which places a second grid parallel to 71. FIG. 5 shows a pair of lattices made by F, which further enhances the particle removal ability.

Here, the upper case f.- is located above the F-part lattice by a distance of the D-part lattice (JIf shape similar to 82, with a distance system determined empirically). Theory - L, there is no minimum value for the spacing between two grids, but if one grid is physically in contact with the other grid, the system performance will be the same as with a single grid. it is obvious.

The maximum distance (b) between two lattices is determined by the gas density and the lattice opening [
] will be a function of various variables including area. Ta,!
l: For example, gas facing velocity 30 ft/sec (higher speeds can be achieved with grid pairs), grid open [
-1 area 60% and gas density 0. O751bs/f
After pilot testing, a maximum spacing of approximately 6 inches was determined.

Generally, spacing of 3 to 6 inches provides improved performance. Generally, when the gas density or velocity decreases, the total lattice spacing decreases.

Also, as the grid opening area decreases, the spacing increases.

The basic consequence of controlling the spacing is that a turbulent region is formed in the interstitial region (c). If the grid spacing is too large, the flowing gas can reestablish the velocity-pressure profile and make it appear older before reaching the lower grid.

The lower grid can act as an energy dissipator. Irregular movement of gas in region A6) and low
The energy level of -1, minimizes the possibility of the existence of a turbulent region on 1a of the -f-Vi(3 grid, as in the case of l,j(-) grid arrangement.

As a result, the scrubber grating forms a film on the L-part grating plane -1-1, and the movement is again along the path 11Zl1-C
It will go towards the center of the container.

Particle removal ability is enhanced by cleaning and filtering on the right side of the grating plane -I.
It was possible to remove 997% of micron particle matter.

This is at a total pressure JJ drop of about 19 inches W,C, across the case f. This is a venturi scrubber! :Jt 'F'j L 1 cyclonic scrubber requires a total pressure drop F of 18 to 10 inches to VC.

Note UJ-f again on i & I- in the upper grid, and this 1
1 (a flow zone (g) is formed within the volume of 3 minutes. For all the same parameter conditions and grid designs, the upper surface (translation) of the flow zone trunk υ is essentially -L single case f. Like Case Yoshi,
It is located equidistant from the [7, direction of the upper grid. In this flow region, the washing 'ff1 liquid M per unit volume is jli! l?
This results in a high density value of 1fI7, which enhances the liquid-particle interaction and improves the gas absorption properties of the cleaning liquid through its increased surface area.

The gas again faces the side wall and the liquid moves towards the center of the container.
and is exhausted, where further reactions occur between the gas and the cleaning agent. Eventually, some of the liquid will penetrate the grate and fall to the bottom of the vessel, from where it will be treated and recycled.

The design of the embodiment provides very high flow elasticity, ie, a maximum allowable gas flow to one minimum gas flow ratio of 3 to 1 overall.

The present invention can be used as a single grating array or multiple arrays of single gratings, or as one or more grating pairs, or even as a mixed array of KU-small f and grating pairs, thereby controlling the desired gas Alternatively, particle absorption capacity can be obtained.

The grid design reflects the static and dynamic waves of the cleaning liquid in the gas velocity profile [also a mirror image of the A one, but that! It is understood that the lattice shape employing the teachings of the present invention can intentionally vary the degree of absorption and removal of the particles.・It's \ki.

In addition, ζ, which is applied to (Example t, ri principle of the present invention omnidirectional flow) 1 equation,! : Should be kept in mind. design(
In this case, the gas flow and the cleaning liquid are applied to the recessed sides of the grating. Typically in such applications the grating has small openings. 1-1 The bond becomes a fortune-telling.

Furthermore, if the liquid and gas are directed in the same direction, the grid can be made more shallowly recessed.

The design of the embodiment has the advantage of fully forming a liquid turbulence region, thereby enhancing the self-cleaning effect and accumulating solid matter.

As far as improving existing systems using the principles of the present invention is concerned, in many cases all this can be done in a container and relatively inexpensively.

This is because no special tools, fixtures, dimensions or reinforcing materials are required to install the grid. actually,
The design leaves a smaller chamber in the ventricle than in a typical absorption device.

However, it may be impractical to use the above-described lattice arrangement in an attempt to improve dust n in other existing systems.

In other words, it is possible to adopt the entire theoretical concept of the present invention resulting in better performance in an improved contact tower, so that sufficient economy can be achieved in this case. It accompanies it.

Figures 6-10 illustrate a grating module employing the principles of the present invention. Figures 6 and 7 show segments in a typical installation. Multiple cylindrical modules, such as module θ, can be played) (1
02)” secondly supported.

This plate (102) has a mounting 7-lunge (102) for holding it on the side wall of the container or on the plate suspension support structure.
104).

Each module is a housing (105) formed from an "i" droplet according to the present invention. The gas flow in the housing (typically 1cj length and 2 feet or more in diameter) is 6 inches, 12 inches, 18 inches, 0 and the container diameter V.
The size was changed to 1 inch, 20 inches, and 24 inches. Generally, the housing within a given container has a uniform length and diameter.

The velocity of the gas flow in each module is determined empirically from the known gas velocity in a vessel that is not thus deformed (i.e., a vessel without a module board). Generally, the gas flow rate in each module is a value obtained by dividing the gas flow rate in the transformed container by the number of modules used.

The design of the structure in each individual housing is determined in accordance with the design criteria described above for the internal grid structure of the container and the characteristics of the liquid and gas in each module.

Figure 8 (A single lattice structure can be adopted for the module, but here two lattice structures are shown for each module.) The liquid (108) is distributed to the plate c11o)-1= which supported the module. This liquid reaches the top of the housing (112), from where it spills into the module and towards the recessed surface of the upper grid structure (114). The incoming gas stream (116) interacts with the liquid medium on the lattice structure, and the resulting flow zones (117) result in the desired mass transfer reactions between the two.

The height of the housing wall above the grid shall be sufficient to accommodate the height of the flow zone. The flow rate of the liquid flowing down the grid is a function of the rate at which the liquid is distributed over the plate (11, (1)), at least at the gas velocity within the module.
The velocity must be such that a controlled flow zone can be formed over the recessed surfaces of the grid. This again follows the design criteria already mentioned. After the droplets in the flow zone interact on the gas medium, they coalesce and pass through the case f,
It is discharged to the bottom of the container where it is recycled 715 and made available for reuse.

FIG. 9 shows an embodiment using yet another method for introducing the liquid medium into the grating structure 1. Here, liquid illusion (122) located on plate (118) and (
The liquid level in plate 14 is above the opening and thus forms a liquid seal. This prevents the formation of a gas bypass flow through the liquid inlet point.

The opening is still enough onto the grid? i: Liquid flow rate or case f・
It is designed to form a controlled flow zone above the pair.

Variations of the grating modules 1 to 1 mentioned above include single gratings or grating pairs (or multiple gratings) in a cylindrical housing.
It also consists of 11 polylattice pairs). The housing shape may also be square or similar.

Other embodiments of total distribution of the liquid medium on the lattice structure may also be adopted from the above-mentioned Kokichi.

[Brief explanation of the drawing]

Figure 1 shows a gas-liquid contactor that employs all the principles of the present invention.
Fig. 2 is a schematic diagram showing the relationship between the velocity profile of the flowing gas and the design of the grid member, and Figs. Reflecting the liquid-gas ratio required to produce the conditions 1
FIG. 4 is a graph based on experimental data showing the pressure drop of water versus liquid-to-gas ratio at various gas velocities; FIG. FIG. 6 is a plan view showing an example of the lattice module structure of the present invention, and FIG. 8 is a side sectional view taken along line 8--8 of FIG. 6; FIG. 9 is a perspective view of a second embodiment including an alternative method for distributing liquid in the grid structure; FIG. It is a front view showing a partial cross section of the lattice module structure. (10)... Gas-liquid contact device (12)
・・・－・・・・・・Housing member (14)・
・・・－・・・・・・・・・、Entrance (Country－・・・・・・・・・・・・
...Outlet (18) ...... Scrubber container (2
0)・・・・・・・・・Drain outlet
......Liquid connection part (24)...Mist eliminator v3) ~ measurement, l121...Grid member (g)...
......Liquid-distributing means f40+, (42,
(44)...Header t+L (c), ←0)...
... Vibrator■ ......Top grid (A) ...F part grid (100) -
... Lattice module (105) ...
・・・Housing (114)・・・−・・・・case
Child patentee Chemubro Cooperation fee
59 S2 Figure Correction Area J La 3 and h"7.lJt Ot/5ec) Tower 49 04 (Ll &) &AL/IO"ocf b Procedural Amendment July 1988 Mr. W. Commissioner of the Japan Patent Office, 1, Indication of the case 1937
F]Ol No. 4 2, Title of the invention Material g motion contact device 3, Relationship with Nagisa Koi '1 to be amended I,'i i71 Applicant's name (
Name) Keno 4-bu
, Agent 〒604 6. Number of inventions increased by amendment

Claims (1)

[Scope of Claims] 1(a) r'+: J notation 1(a) r' (b) at least one grid member suspended in the conduit and arranged perpendicular to the gas flow direction;
means for dispensing at the same time, said grid member having a predetermined theoretical velocity pressure of the gas stream in said connecting conduit, and a means for dispensing said liquid at a theoretical rate corresponding to the sum of the static and dynamic head of said dispensed liquid. having a cross-sectional profile of the order of 1 to 1, the liquid is distributed into the recesses I of the grid member, and the liquid flow rate t and the liquid flow rate (1,) or the average gas velocity A gas-liquid contact characterized in that the force is formed to a value equal to I to form a controlled flow region on the upper part of the recessed surface of the member. The device. (2) Consists of an inlet and an outlet, a conduit connecting the inlet and the outlet, and a remaining housing jMs4'4, (
a) (l) Each module has 4 people [1 person
(ii)
(b) At least one group of modules having at least one lattice part N fully suspended therein; The lattice member of the module intersects CfL with the +1iJ gas flow direction, and the gas flow rate passing through each module or the gas flow rate passing through the four pipes is approximately equal to the value obtained by dividing the number of modules 2 forming the module group tm. (c) means for distributing liquid in selected liquid flow leaves onto said grid members of each module such that said grid members of each module control the flow of liquid in each of said modules; For a given theoretical velocity, the dispensed liquid statically and dynamically has a cross-sectional profile equal to the sum of 'i l & 7, and further the liquid flows through the grid member. and the selected liquid flow rate is distributed to one of the depressions in each of the sections P in relation to the average gas velocity in each module. 1. A gas-liquid contacting device characterized by comprising means for achieving a value sufficient to form a controlled flow region. (3) By adding an extra depth to the grid/member, the energy imbalance between the energy level of the distributed liquid and the J energy level of the circulating gas, which fully supports the liquid distribution, is reduced. Claims (1) or (2) characterized in that the liquid is caused to flow out of the controlled flow area through the grid member.
). (4) The lattice member is a catenary type, and 1, d
c = P vc 4-1-ISL+ Hl)L +
has a perigee depth dc determined by d+ , where Pv c is the gas velocity pressure at said perigee and H8L is the wave crest of the dispensed liquid, 1[, 11 L) I-, , is the operating wave front, and d+
1. The device according to claim 3, wherein the L is an extra depth to create an energy imbalance that supports the entire liquid distribution. 11 +'jlThe cross-sectional profile of the lattice member is [)
1. The device according to claim 3, characterized in that it approximates the ideal setting W sufficiently to provide a controlled flow region. (6) The conduit path or (-1 module housing member Q) at least a pair of lattice members suspended;
4. The apparatus of claim 3, wherein the lattice members in each pair are spaced a predetermined distance apart from each other. (7) The lattice member is made of a flexible material (2) Claim (3) characterized in that the lattice member is made of a flexible material so that the accumulated material can be moved by the flexure of the lattice member. (8) The device according to claim (3), characterized in that the lattice P open [1 area is within the range of 50 to 85%, J:. -1 area is within the range of 50 to 75%? The device according to claim (8). (10) The extra depth is within the range of 5 to 40%. An apparatus according to claim (3), characterized in that: